Mercurial > vim
view src/eval.c @ 7804:874044d87168
Added tag v7.4.1198 for changeset 37c929c4a073931918086340a79c3a6e10f80946
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Fri, 29 Jan 2016 22:45:06 +0100 |
| parents | 192ae655ac91 |
| children | 83861277e6a3 |
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/* vi:set ts=8 sts=4 sw=4: * * VIM - Vi IMproved by Bram Moolenaar * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. * See README.txt for an overview of the Vim source code. */ /* * eval.c: Expression evaluation. */ #include "vim.h" #if defined(FEAT_EVAL) || defined(PROTO) #ifdef AMIGA # include <time.h> /* for strftime() */ #endif #ifdef VMS # include <float.h> #endif #ifdef MACOS # include <time.h> /* for time_t */ #endif #if defined(FEAT_FLOAT) && defined(HAVE_MATH_H) # include <math.h> #endif #define DICT_MAXNEST 100 /* maximum nesting of lists and dicts */ #define DO_NOT_FREE_CNT 99999 /* refcount for dict or list that should not be freed. */ /* * In a hashtab item "hi_key" points to "di_key" in a dictitem. * This avoids adding a pointer to the hashtab item. * DI2HIKEY() converts a dictitem pointer to a hashitem key pointer. * HIKEY2DI() converts a hashitem key pointer to a dictitem pointer. * HI2DI() converts a hashitem pointer to a dictitem pointer. */ static dictitem_T dumdi; #define DI2HIKEY(di) ((di)->di_key) #define HIKEY2DI(p) ((dictitem_T *)(p - (dumdi.di_key - (char_u *)&dumdi))) #define HI2DI(hi) HIKEY2DI((hi)->hi_key) /* * Structure returned by get_lval() and used by set_var_lval(). * For a plain name: * "name" points to the variable name. * "exp_name" is NULL. * "tv" is NULL * For a magic braces name: * "name" points to the expanded variable name. * "exp_name" is non-NULL, to be freed later. * "tv" is NULL * For an index in a list: * "name" points to the (expanded) variable name. * "exp_name" NULL or non-NULL, to be freed later. * "tv" points to the (first) list item value * "li" points to the (first) list item * "range", "n1", "n2" and "empty2" indicate what items are used. * For an existing Dict item: * "name" points to the (expanded) variable name. * "exp_name" NULL or non-NULL, to be freed later. * "tv" points to the dict item value * "newkey" is NULL * For a non-existing Dict item: * "name" points to the (expanded) variable name. * "exp_name" NULL or non-NULL, to be freed later. * "tv" points to the Dictionary typval_T * "newkey" is the key for the new item. */ typedef struct lval_S { char_u *ll_name; /* start of variable name (can be NULL) */ char_u *ll_exp_name; /* NULL or expanded name in allocated memory. */ typval_T *ll_tv; /* Typeval of item being used. If "newkey" isn't NULL it's the Dict to which to add the item. */ listitem_T *ll_li; /* The list item or NULL. */ list_T *ll_list; /* The list or NULL. */ int ll_range; /* TRUE when a [i:j] range was used */ long ll_n1; /* First index for list */ long ll_n2; /* Second index for list range */ int ll_empty2; /* Second index is empty: [i:] */ dict_T *ll_dict; /* The Dictionary or NULL */ dictitem_T *ll_di; /* The dictitem or NULL */ char_u *ll_newkey; /* New key for Dict in alloc. mem or NULL. */ } lval_T; static char *e_letunexp = N_("E18: Unexpected characters in :let"); static char *e_listidx = N_("E684: list index out of range: %ld"); static char *e_undefvar = N_("E121: Undefined variable: %s"); static char *e_missbrac = N_("E111: Missing ']'"); static char *e_listarg = N_("E686: Argument of %s must be a List"); static char *e_listdictarg = N_("E712: Argument of %s must be a List or Dictionary"); static char *e_listreq = N_("E714: List required"); static char *e_dictreq = N_("E715: Dictionary required"); static char *e_toomanyarg = N_("E118: Too many arguments for function: %s"); static char *e_dictkey = N_("E716: Key not present in Dictionary: %s"); static char *e_funcexts = N_("E122: Function %s already exists, add ! to replace it"); static char *e_funcdict = N_("E717: Dictionary entry already exists"); static char *e_funcref = N_("E718: Funcref required"); static char *e_dictrange = N_("E719: Cannot use [:] with a Dictionary"); static char *e_letwrong = N_("E734: Wrong variable type for %s="); static char *e_nofunc = N_("E130: Unknown function: %s"); static char *e_illvar = N_("E461: Illegal variable name: %s"); #ifdef FEAT_FLOAT static char *e_float_as_string = N_("E806: using Float as a String"); #endif #define NAMESPACE_CHAR (char_u *)"abglstvw" static dictitem_T globvars_var; /* variable used for g: */ #define globvarht globvardict.dv_hashtab /* * Old Vim variables such as "v:version" are also available without the "v:". * Also in functions. We need a special hashtable for them. */ static hashtab_T compat_hashtab; /* * When recursively copying lists and dicts we need to remember which ones we * have done to avoid endless recursiveness. This unique ID is used for that. * The last bit is used for previous_funccal, ignored when comparing. */ static int current_copyID = 0; #define COPYID_INC 2 #define COPYID_MASK (~0x1) /* Abort conversion to string after a recursion error. */ static int did_echo_string_emsg = FALSE; /* * Array to hold the hashtab with variables local to each sourced script. * Each item holds a variable (nameless) that points to the dict_T. */ typedef struct { dictitem_T sv_var; dict_T sv_dict; } scriptvar_T; static garray_T ga_scripts = {0, 0, sizeof(scriptvar_T *), 4, NULL}; #define SCRIPT_SV(id) (((scriptvar_T **)ga_scripts.ga_data)[(id) - 1]) #define SCRIPT_VARS(id) (SCRIPT_SV(id)->sv_dict.dv_hashtab) static int echo_attr = 0; /* attributes used for ":echo" */ /* Values for trans_function_name() argument: */ #define TFN_INT 1 /* internal function name OK */ #define TFN_QUIET 2 /* no error messages */ #define TFN_NO_AUTOLOAD 4 /* do not use script autoloading */ /* Values for get_lval() flags argument: */ #define GLV_QUIET TFN_QUIET /* no error messages */ #define GLV_NO_AUTOLOAD TFN_NO_AUTOLOAD /* do not use script autoloading */ /* * Structure to hold info for a user function. */ typedef struct ufunc ufunc_T; struct ufunc { int uf_varargs; /* variable nr of arguments */ int uf_flags; int uf_calls; /* nr of active calls */ garray_T uf_args; /* arguments */ garray_T uf_lines; /* function lines */ #ifdef FEAT_PROFILE int uf_profiling; /* TRUE when func is being profiled */ /* profiling the function as a whole */ int uf_tm_count; /* nr of calls */ proftime_T uf_tm_total; /* time spent in function + children */ proftime_T uf_tm_self; /* time spent in function itself */ proftime_T uf_tm_children; /* time spent in children this call */ /* profiling the function per line */ int *uf_tml_count; /* nr of times line was executed */ proftime_T *uf_tml_total; /* time spent in a line + children */ proftime_T *uf_tml_self; /* time spent in a line itself */ proftime_T uf_tml_start; /* start time for current line */ proftime_T uf_tml_children; /* time spent in children for this line */ proftime_T uf_tml_wait; /* start wait time for current line */ int uf_tml_idx; /* index of line being timed; -1 if none */ int uf_tml_execed; /* line being timed was executed */ #endif scid_T uf_script_ID; /* ID of script where function was defined, used for s: variables */ int uf_refcount; /* for numbered function: reference count */ char_u uf_name[1]; /* name of function (actually longer); can start with <SNR>123_ (<SNR> is K_SPECIAL KS_EXTRA KE_SNR) */ }; /* function flags */ #define FC_ABORT 1 /* abort function on error */ #define FC_RANGE 2 /* function accepts range */ #define FC_DICT 4 /* Dict function, uses "self" */ /* * All user-defined functions are found in this hashtable. */ static hashtab_T func_hashtab; /* The names of packages that once were loaded are remembered. */ static garray_T ga_loaded = {0, 0, sizeof(char_u *), 4, NULL}; /* list heads for garbage collection */ static dict_T *first_dict = NULL; /* list of all dicts */ static list_T *first_list = NULL; /* list of all lists */ /* From user function to hashitem and back. */ static ufunc_T dumuf; #define UF2HIKEY(fp) ((fp)->uf_name) #define HIKEY2UF(p) ((ufunc_T *)(p - (dumuf.uf_name - (char_u *)&dumuf))) #define HI2UF(hi) HIKEY2UF((hi)->hi_key) #define FUNCARG(fp, j) ((char_u **)(fp->uf_args.ga_data))[j] #define FUNCLINE(fp, j) ((char_u **)(fp->uf_lines.ga_data))[j] #define MAX_FUNC_ARGS 20 /* maximum number of function arguments */ #define VAR_SHORT_LEN 20 /* short variable name length */ #define FIXVAR_CNT 12 /* number of fixed variables */ /* structure to hold info for a function that is currently being executed. */ typedef struct funccall_S funccall_T; struct funccall_S { ufunc_T *func; /* function being called */ int linenr; /* next line to be executed */ int returned; /* ":return" used */ struct /* fixed variables for arguments */ { dictitem_T var; /* variable (without room for name) */ char_u room[VAR_SHORT_LEN]; /* room for the name */ } fixvar[FIXVAR_CNT]; dict_T l_vars; /* l: local function variables */ dictitem_T l_vars_var; /* variable for l: scope */ dict_T l_avars; /* a: argument variables */ dictitem_T l_avars_var; /* variable for a: scope */ list_T l_varlist; /* list for a:000 */ listitem_T l_listitems[MAX_FUNC_ARGS]; /* listitems for a:000 */ typval_T *rettv; /* return value */ linenr_T breakpoint; /* next line with breakpoint or zero */ int dbg_tick; /* debug_tick when breakpoint was set */ int level; /* top nesting level of executed function */ #ifdef FEAT_PROFILE proftime_T prof_child; /* time spent in a child */ #endif funccall_T *caller; /* calling function or NULL */ }; /* * Info used by a ":for" loop. */ typedef struct { int fi_semicolon; /* TRUE if ending in '; var]' */ int fi_varcount; /* nr of variables in the list */ listwatch_T fi_lw; /* keep an eye on the item used. */ list_T *fi_list; /* list being used */ } forinfo_T; /* * Struct used by trans_function_name() */ typedef struct { dict_T *fd_dict; /* Dictionary used */ char_u *fd_newkey; /* new key in "dict" in allocated memory */ dictitem_T *fd_di; /* Dictionary item used */ } funcdict_T; /* * Array to hold the value of v: variables. * The value is in a dictitem, so that it can also be used in the v: scope. * The reason to use this table anyway is for very quick access to the * variables with the VV_ defines. */ #include "version.h" /* values for vv_flags: */ #define VV_COMPAT 1 /* compatible, also used without "v:" */ #define VV_RO 2 /* read-only */ #define VV_RO_SBX 4 /* read-only in the sandbox */ #define VV_NAME(s, t) s, {{t, 0, {0}}, 0, {0}}, {0} static struct vimvar { char *vv_name; /* name of variable, without v: */ dictitem_T vv_di; /* value and name for key */ char vv_filler[16]; /* space for LONGEST name below!!! */ char vv_flags; /* VV_COMPAT, VV_RO, VV_RO_SBX */ } vimvars[VV_LEN] = { /* * The order here must match the VV_ defines in vim.h! * Initializing a union does not work, leave tv.vval empty to get zero's. */ {VV_NAME("count", VAR_NUMBER), VV_COMPAT+VV_RO}, {VV_NAME("count1", VAR_NUMBER), VV_RO}, {VV_NAME("prevcount", VAR_NUMBER), VV_RO}, {VV_NAME("errmsg", VAR_STRING), VV_COMPAT}, {VV_NAME("warningmsg", VAR_STRING), 0}, {VV_NAME("statusmsg", VAR_STRING), 0}, {VV_NAME("shell_error", VAR_NUMBER), VV_COMPAT+VV_RO}, {VV_NAME("this_session", VAR_STRING), VV_COMPAT}, {VV_NAME("version", VAR_NUMBER), VV_COMPAT+VV_RO}, {VV_NAME("lnum", VAR_NUMBER), VV_RO_SBX}, {VV_NAME("termresponse", VAR_STRING), VV_RO}, {VV_NAME("fname", VAR_STRING), VV_RO}, {VV_NAME("lang", VAR_STRING), VV_RO}, {VV_NAME("lc_time", VAR_STRING), VV_RO}, {VV_NAME("ctype", VAR_STRING), VV_RO}, {VV_NAME("charconvert_from", VAR_STRING), VV_RO}, {VV_NAME("charconvert_to", VAR_STRING), VV_RO}, {VV_NAME("fname_in", VAR_STRING), VV_RO}, {VV_NAME("fname_out", VAR_STRING), VV_RO}, {VV_NAME("fname_new", VAR_STRING), VV_RO}, {VV_NAME("fname_diff", VAR_STRING), VV_RO}, {VV_NAME("cmdarg", VAR_STRING), VV_RO}, {VV_NAME("foldstart", VAR_NUMBER), VV_RO_SBX}, {VV_NAME("foldend", VAR_NUMBER), VV_RO_SBX}, {VV_NAME("folddashes", VAR_STRING), VV_RO_SBX}, {VV_NAME("foldlevel", VAR_NUMBER), VV_RO_SBX}, {VV_NAME("progname", VAR_STRING), VV_RO}, {VV_NAME("servername", VAR_STRING), VV_RO}, {VV_NAME("dying", VAR_NUMBER), VV_RO}, {VV_NAME("exception", VAR_STRING), VV_RO}, {VV_NAME("throwpoint", VAR_STRING), VV_RO}, {VV_NAME("register", VAR_STRING), VV_RO}, {VV_NAME("cmdbang", VAR_NUMBER), VV_RO}, {VV_NAME("insertmode", VAR_STRING), VV_RO}, {VV_NAME("val", VAR_UNKNOWN), VV_RO}, {VV_NAME("key", VAR_UNKNOWN), VV_RO}, {VV_NAME("profiling", VAR_NUMBER), VV_RO}, {VV_NAME("fcs_reason", VAR_STRING), VV_RO}, {VV_NAME("fcs_choice", VAR_STRING), 0}, {VV_NAME("beval_bufnr", VAR_NUMBER), VV_RO}, {VV_NAME("beval_winnr", VAR_NUMBER), VV_RO}, {VV_NAME("beval_lnum", VAR_NUMBER), VV_RO}, {VV_NAME("beval_col", VAR_NUMBER), VV_RO}, {VV_NAME("beval_text", VAR_STRING), VV_RO}, {VV_NAME("scrollstart", VAR_STRING), 0}, {VV_NAME("swapname", VAR_STRING), VV_RO}, {VV_NAME("swapchoice", VAR_STRING), 0}, {VV_NAME("swapcommand", VAR_STRING), VV_RO}, {VV_NAME("char", VAR_STRING), 0}, {VV_NAME("mouse_win", VAR_NUMBER), 0}, {VV_NAME("mouse_lnum", VAR_NUMBER), 0}, {VV_NAME("mouse_col", VAR_NUMBER), 0}, {VV_NAME("operator", VAR_STRING), VV_RO}, {VV_NAME("searchforward", VAR_NUMBER), 0}, {VV_NAME("hlsearch", VAR_NUMBER), 0}, {VV_NAME("oldfiles", VAR_LIST), 0}, {VV_NAME("windowid", VAR_NUMBER), VV_RO}, {VV_NAME("progpath", VAR_STRING), VV_RO}, {VV_NAME("completed_item", VAR_DICT), VV_RO}, {VV_NAME("option_new", VAR_STRING), VV_RO}, {VV_NAME("option_old", VAR_STRING), VV_RO}, {VV_NAME("option_type", VAR_STRING), VV_RO}, {VV_NAME("errors", VAR_LIST), 0}, {VV_NAME("false", VAR_SPECIAL), VV_RO}, {VV_NAME("true", VAR_SPECIAL), VV_RO}, {VV_NAME("null", VAR_SPECIAL), VV_RO}, {VV_NAME("none", VAR_SPECIAL), VV_RO}, }; /* shorthand */ #define vv_type vv_di.di_tv.v_type #define vv_nr vv_di.di_tv.vval.v_number #define vv_float vv_di.di_tv.vval.v_float #define vv_str vv_di.di_tv.vval.v_string #define vv_list vv_di.di_tv.vval.v_list #define vv_dict vv_di.di_tv.vval.v_dict #define vv_tv vv_di.di_tv static dictitem_T vimvars_var; /* variable used for v: */ #define vimvarht vimvardict.dv_hashtab static void prepare_vimvar(int idx, typval_T *save_tv); static void restore_vimvar(int idx, typval_T *save_tv); static int ex_let_vars(char_u *arg, typval_T *tv, int copy, int semicolon, int var_count, char_u *nextchars); static char_u *skip_var_list(char_u *arg, int *var_count, int *semicolon); static char_u *skip_var_one(char_u *arg); static void list_hashtable_vars(hashtab_T *ht, char_u *prefix, int empty, int *first); static void list_glob_vars(int *first); static void list_buf_vars(int *first); static void list_win_vars(int *first); #ifdef FEAT_WINDOWS static void list_tab_vars(int *first); #endif static void list_vim_vars(int *first); static void list_script_vars(int *first); static void list_func_vars(int *first); static char_u *list_arg_vars(exarg_T *eap, char_u *arg, int *first); static char_u *ex_let_one(char_u *arg, typval_T *tv, int copy, char_u *endchars, char_u *op); static int check_changedtick(char_u *arg); static char_u *get_lval(char_u *name, typval_T *rettv, lval_T *lp, int unlet, int skip, int flags, int fne_flags); static void clear_lval(lval_T *lp); static void set_var_lval(lval_T *lp, char_u *endp, typval_T *rettv, int copy, char_u *op); static int tv_op(typval_T *tv1, typval_T *tv2, char_u *op); static void list_fix_watch(list_T *l, listitem_T *item); static void ex_unletlock(exarg_T *eap, char_u *argstart, int deep); static int do_unlet_var(lval_T *lp, char_u *name_end, int forceit); static int do_lock_var(lval_T *lp, char_u *name_end, int deep, int lock); static void item_lock(typval_T *tv, int deep, int lock); static int tv_islocked(typval_T *tv); static int eval0(char_u *arg, typval_T *rettv, char_u **nextcmd, int evaluate); static int eval1(char_u **arg, typval_T *rettv, int evaluate); static int eval2(char_u **arg, typval_T *rettv, int evaluate); static int eval3(char_u **arg, typval_T *rettv, int evaluate); static int eval4(char_u **arg, typval_T *rettv, int evaluate); static int eval5(char_u **arg, typval_T *rettv, int evaluate); static int eval6(char_u **arg, typval_T *rettv, int evaluate, int want_string); static int eval7(char_u **arg, typval_T *rettv, int evaluate, int want_string); static int eval_index(char_u **arg, typval_T *rettv, int evaluate, int verbose); static int get_option_tv(char_u **arg, typval_T *rettv, int evaluate); static int get_string_tv(char_u **arg, typval_T *rettv, int evaluate); static int get_lit_string_tv(char_u **arg, typval_T *rettv, int evaluate); static int get_list_tv(char_u **arg, typval_T *rettv, int evaluate); static long list_len(list_T *l); static int list_equal(list_T *l1, list_T *l2, int ic, int recursive); static int dict_equal(dict_T *d1, dict_T *d2, int ic, int recursive); static int tv_equal(typval_T *tv1, typval_T *tv2, int ic, int recursive); static long list_find_nr(list_T *l, long idx, int *errorp); static long list_idx_of_item(list_T *l, listitem_T *item); static int list_append_number(list_T *l, varnumber_T n); static int list_extend(list_T *l1, list_T *l2, listitem_T *bef); static int list_concat(list_T *l1, list_T *l2, typval_T *tv); static list_T *list_copy(list_T *orig, int deep, int copyID); static char_u *list2string(typval_T *tv, int copyID); static int list_join_inner(garray_T *gap, list_T *l, char_u *sep, int echo_style, int copyID, garray_T *join_gap); static int list_join(garray_T *gap, list_T *l, char_u *sep, int echo, int copyID); static int free_unref_items(int copyID); static dictitem_T *dictitem_copy(dictitem_T *org); static void dictitem_remove(dict_T *dict, dictitem_T *item); static dict_T *dict_copy(dict_T *orig, int deep, int copyID); static long dict_len(dict_T *d); static char_u *dict2string(typval_T *tv, int copyID); static int get_dict_tv(char_u **arg, typval_T *rettv, int evaluate); static char_u *echo_string(typval_T *tv, char_u **tofree, char_u *numbuf, int copyID); static char_u *tv2string(typval_T *tv, char_u **tofree, char_u *numbuf, int copyID); static char_u *string_quote(char_u *str, int function); static int get_env_tv(char_u **arg, typval_T *rettv, int evaluate); static int find_internal_func(char_u *name); static char_u *deref_func_name(char_u *name, int *lenp, int no_autoload); static int get_func_tv(char_u *name, int len, typval_T *rettv, char_u **arg, linenr_T firstline, linenr_T lastline, int *doesrange, int evaluate, dict_T *selfdict); static void emsg_funcname(char *ermsg, char_u *name); static int non_zero_arg(typval_T *argvars); #ifdef FEAT_FLOAT static void f_abs(typval_T *argvars, typval_T *rettv); static void f_acos(typval_T *argvars, typval_T *rettv); #endif static void f_add(typval_T *argvars, typval_T *rettv); static void f_alloc_fail(typval_T *argvars, typval_T *rettv); static void f_and(typval_T *argvars, typval_T *rettv); static void f_append(typval_T *argvars, typval_T *rettv); static void f_argc(typval_T *argvars, typval_T *rettv); static void f_argidx(typval_T *argvars, typval_T *rettv); static void f_arglistid(typval_T *argvars, typval_T *rettv); static void f_argv(typval_T *argvars, typval_T *rettv); static void f_assert_equal(typval_T *argvars, typval_T *rettv); static void f_assert_exception(typval_T *argvars, typval_T *rettv); static void f_assert_fails(typval_T *argvars, typval_T *rettv); static void f_assert_false(typval_T *argvars, typval_T *rettv); static void f_assert_true(typval_T *argvars, typval_T *rettv); #ifdef FEAT_FLOAT static void f_asin(typval_T *argvars, typval_T *rettv); static void f_atan(typval_T *argvars, typval_T *rettv); static void f_atan2(typval_T *argvars, typval_T *rettv); #endif static void f_browse(typval_T *argvars, typval_T *rettv); static void f_browsedir(typval_T *argvars, typval_T *rettv); static void f_bufexists(typval_T *argvars, typval_T *rettv); static void f_buflisted(typval_T *argvars, typval_T *rettv); static void f_bufloaded(typval_T *argvars, typval_T *rettv); static void f_bufname(typval_T *argvars, typval_T *rettv); static void f_bufnr(typval_T *argvars, typval_T *rettv); static void f_bufwinnr(typval_T *argvars, typval_T *rettv); static void f_byte2line(typval_T *argvars, typval_T *rettv); static void byteidx(typval_T *argvars, typval_T *rettv, int comp); static void f_byteidx(typval_T *argvars, typval_T *rettv); static void f_byteidxcomp(typval_T *argvars, typval_T *rettv); static void f_call(typval_T *argvars, typval_T *rettv); #ifdef FEAT_FLOAT static void f_ceil(typval_T *argvars, typval_T *rettv); #endif static void f_changenr(typval_T *argvars, typval_T *rettv); static void f_char2nr(typval_T *argvars, typval_T *rettv); static void f_cindent(typval_T *argvars, typval_T *rettv); static void f_clearmatches(typval_T *argvars, typval_T *rettv); static void f_col(typval_T *argvars, typval_T *rettv); #if defined(FEAT_INS_EXPAND) static void f_complete(typval_T *argvars, typval_T *rettv); static void f_complete_add(typval_T *argvars, typval_T *rettv); static void f_complete_check(typval_T *argvars, typval_T *rettv); #endif static void f_confirm(typval_T *argvars, typval_T *rettv); static void f_copy(typval_T *argvars, typval_T *rettv); #ifdef FEAT_FLOAT static void f_cos(typval_T *argvars, typval_T *rettv); static void f_cosh(typval_T *argvars, typval_T *rettv); #endif #ifdef FEAT_CHANNEL static void f_connect(typval_T *argvars, typval_T *rettv); #endif static void f_count(typval_T *argvars, typval_T *rettv); static void f_cscope_connection(typval_T *argvars, typval_T *rettv); static void f_cursor(typval_T *argsvars, typval_T *rettv); static void f_deepcopy(typval_T *argvars, typval_T *rettv); static void f_delete(typval_T *argvars, typval_T *rettv); static void f_did_filetype(typval_T *argvars, typval_T *rettv); static void f_diff_filler(typval_T *argvars, typval_T *rettv); static void f_diff_hlID(typval_T *argvars, typval_T *rettv); #ifdef FEAT_CHANNEL static void f_disconnect(typval_T *argvars, typval_T *rettv); #endif static void f_empty(typval_T *argvars, typval_T *rettv); static void f_escape(typval_T *argvars, typval_T *rettv); static void f_eval(typval_T *argvars, typval_T *rettv); static void f_eventhandler(typval_T *argvars, typval_T *rettv); static void f_executable(typval_T *argvars, typval_T *rettv); static void f_exepath(typval_T *argvars, typval_T *rettv); static void f_exists(typval_T *argvars, typval_T *rettv); #ifdef FEAT_FLOAT static void f_exp(typval_T *argvars, typval_T *rettv); #endif static void f_expand(typval_T *argvars, typval_T *rettv); static void f_extend(typval_T *argvars, typval_T *rettv); static void f_feedkeys(typval_T *argvars, typval_T *rettv); static void f_filereadable(typval_T *argvars, typval_T *rettv); static void f_filewritable(typval_T *argvars, typval_T *rettv); static void f_filter(typval_T *argvars, typval_T *rettv); static void f_finddir(typval_T *argvars, typval_T *rettv); static void f_findfile(typval_T *argvars, typval_T *rettv); #ifdef FEAT_FLOAT static void f_float2nr(typval_T *argvars, typval_T *rettv); static void f_floor(typval_T *argvars, typval_T *rettv); static void f_fmod(typval_T *argvars, typval_T *rettv); #endif static void f_fnameescape(typval_T *argvars, typval_T *rettv); static void f_fnamemodify(typval_T *argvars, typval_T *rettv); static void f_foldclosed(typval_T *argvars, typval_T *rettv); static void f_foldclosedend(typval_T *argvars, typval_T *rettv); static void f_foldlevel(typval_T *argvars, typval_T *rettv); static void f_foldtext(typval_T *argvars, typval_T *rettv); static void f_foldtextresult(typval_T *argvars, typval_T *rettv); static void f_foreground(typval_T *argvars, typval_T *rettv); static void f_function(typval_T *argvars, typval_T *rettv); static void f_garbagecollect(typval_T *argvars, typval_T *rettv); static void f_get(typval_T *argvars, typval_T *rettv); static void f_getbufline(typval_T *argvars, typval_T *rettv); static void f_getbufvar(typval_T *argvars, typval_T *rettv); static void f_getchar(typval_T *argvars, typval_T *rettv); static void f_getcharmod(typval_T *argvars, typval_T *rettv); static void f_getcharsearch(typval_T *argvars, typval_T *rettv); static void f_getcmdline(typval_T *argvars, typval_T *rettv); static void f_getcmdpos(typval_T *argvars, typval_T *rettv); static void f_getcmdtype(typval_T *argvars, typval_T *rettv); static void f_getcmdwintype(typval_T *argvars, typval_T *rettv); static void f_getcwd(typval_T *argvars, typval_T *rettv); static void f_getfontname(typval_T *argvars, typval_T *rettv); static void f_getfperm(typval_T *argvars, typval_T *rettv); static void f_getfsize(typval_T *argvars, typval_T *rettv); static void f_getftime(typval_T *argvars, typval_T *rettv); static void f_getftype(typval_T *argvars, typval_T *rettv); static void f_getline(typval_T *argvars, typval_T *rettv); static void f_getmatches(typval_T *argvars, typval_T *rettv); static void f_getpid(typval_T *argvars, typval_T *rettv); static void f_getcurpos(typval_T *argvars, typval_T *rettv); static void f_getpos(typval_T *argvars, typval_T *rettv); static void f_getqflist(typval_T *argvars, typval_T *rettv); static void f_getreg(typval_T *argvars, typval_T *rettv); static void f_getregtype(typval_T *argvars, typval_T *rettv); static void f_gettabvar(typval_T *argvars, typval_T *rettv); static void f_gettabwinvar(typval_T *argvars, typval_T *rettv); static void f_getwinposx(typval_T *argvars, typval_T *rettv); static void f_getwinposy(typval_T *argvars, typval_T *rettv); static void f_getwinvar(typval_T *argvars, typval_T *rettv); static void f_glob(typval_T *argvars, typval_T *rettv); static void f_globpath(typval_T *argvars, typval_T *rettv); static void f_glob2regpat(typval_T *argvars, typval_T *rettv); static void f_has(typval_T *argvars, typval_T *rettv); static void f_has_key(typval_T *argvars, typval_T *rettv); static void f_haslocaldir(typval_T *argvars, typval_T *rettv); static void f_hasmapto(typval_T *argvars, typval_T *rettv); static void f_histadd(typval_T *argvars, typval_T *rettv); static void f_histdel(typval_T *argvars, typval_T *rettv); static void f_histget(typval_T *argvars, typval_T *rettv); static void f_histnr(typval_T *argvars, typval_T *rettv); static void f_hlID(typval_T *argvars, typval_T *rettv); static void f_hlexists(typval_T *argvars, typval_T *rettv); static void f_hostname(typval_T *argvars, typval_T *rettv); static void f_iconv(typval_T *argvars, typval_T *rettv); static void f_indent(typval_T *argvars, typval_T *rettv); static void f_index(typval_T *argvars, typval_T *rettv); static void f_input(typval_T *argvars, typval_T *rettv); static void f_inputdialog(typval_T *argvars, typval_T *rettv); static void f_inputlist(typval_T *argvars, typval_T *rettv); static void f_inputrestore(typval_T *argvars, typval_T *rettv); static void f_inputsave(typval_T *argvars, typval_T *rettv); static void f_inputsecret(typval_T *argvars, typval_T *rettv); static void f_insert(typval_T *argvars, typval_T *rettv); static void f_invert(typval_T *argvars, typval_T *rettv); static void f_isdirectory(typval_T *argvars, typval_T *rettv); static void f_islocked(typval_T *argvars, typval_T *rettv); static void f_items(typval_T *argvars, typval_T *rettv); static void f_join(typval_T *argvars, typval_T *rettv); static void f_jsondecode(typval_T *argvars, typval_T *rettv); static void f_jsonencode(typval_T *argvars, typval_T *rettv); static void f_keys(typval_T *argvars, typval_T *rettv); static void f_last_buffer_nr(typval_T *argvars, typval_T *rettv); static void f_len(typval_T *argvars, typval_T *rettv); static void f_libcall(typval_T *argvars, typval_T *rettv); static void f_libcallnr(typval_T *argvars, typval_T *rettv); static void f_line(typval_T *argvars, typval_T *rettv); static void f_line2byte(typval_T *argvars, typval_T *rettv); static void f_lispindent(typval_T *argvars, typval_T *rettv); static void f_localtime(typval_T *argvars, typval_T *rettv); #ifdef FEAT_FLOAT static void f_log(typval_T *argvars, typval_T *rettv); static void f_log10(typval_T *argvars, typval_T *rettv); #endif #ifdef FEAT_LUA static void f_luaeval(typval_T *argvars, typval_T *rettv); #endif static void f_map(typval_T *argvars, typval_T *rettv); static void f_maparg(typval_T *argvars, typval_T *rettv); static void f_mapcheck(typval_T *argvars, typval_T *rettv); static void f_match(typval_T *argvars, typval_T *rettv); static void f_matchadd(typval_T *argvars, typval_T *rettv); static void f_matchaddpos(typval_T *argvars, typval_T *rettv); static void f_matcharg(typval_T *argvars, typval_T *rettv); static void f_matchdelete(typval_T *argvars, typval_T *rettv); static void f_matchend(typval_T *argvars, typval_T *rettv); static void f_matchlist(typval_T *argvars, typval_T *rettv); static void f_matchstr(typval_T *argvars, typval_T *rettv); static void f_max(typval_T *argvars, typval_T *rettv); static void f_min(typval_T *argvars, typval_T *rettv); #ifdef vim_mkdir static void f_mkdir(typval_T *argvars, typval_T *rettv); #endif static void f_mode(typval_T *argvars, typval_T *rettv); #ifdef FEAT_MZSCHEME static void f_mzeval(typval_T *argvars, typval_T *rettv); #endif static void f_nextnonblank(typval_T *argvars, typval_T *rettv); static void f_nr2char(typval_T *argvars, typval_T *rettv); static void f_or(typval_T *argvars, typval_T *rettv); static void f_pathshorten(typval_T *argvars, typval_T *rettv); #ifdef FEAT_PERL static void f_perleval(typval_T *argvars, typval_T *rettv); #endif #ifdef FEAT_FLOAT static void f_pow(typval_T *argvars, typval_T *rettv); #endif static void f_prevnonblank(typval_T *argvars, typval_T *rettv); static void f_printf(typval_T *argvars, typval_T *rettv); static void f_pumvisible(typval_T *argvars, typval_T *rettv); #ifdef FEAT_PYTHON3 static void f_py3eval(typval_T *argvars, typval_T *rettv); #endif #ifdef FEAT_PYTHON static void f_pyeval(typval_T *argvars, typval_T *rettv); #endif static void f_range(typval_T *argvars, typval_T *rettv); static void f_readfile(typval_T *argvars, typval_T *rettv); static void f_reltime(typval_T *argvars, typval_T *rettv); static void f_reltimestr(typval_T *argvars, typval_T *rettv); static void f_remote_expr(typval_T *argvars, typval_T *rettv); static void f_remote_foreground(typval_T *argvars, typval_T *rettv); static void f_remote_peek(typval_T *argvars, typval_T *rettv); static void f_remote_read(typval_T *argvars, typval_T *rettv); static void f_remote_send(typval_T *argvars, typval_T *rettv); static void f_remove(typval_T *argvars, typval_T *rettv); static void f_rename(typval_T *argvars, typval_T *rettv); static void f_repeat(typval_T *argvars, typval_T *rettv); static void f_resolve(typval_T *argvars, typval_T *rettv); static void f_reverse(typval_T *argvars, typval_T *rettv); #ifdef FEAT_FLOAT static void f_round(typval_T *argvars, typval_T *rettv); #endif static void f_screenattr(typval_T *argvars, typval_T *rettv); static void f_screenchar(typval_T *argvars, typval_T *rettv); static void f_screencol(typval_T *argvars, typval_T *rettv); static void f_screenrow(typval_T *argvars, typval_T *rettv); static void f_search(typval_T *argvars, typval_T *rettv); static void f_searchdecl(typval_T *argvars, typval_T *rettv); static void f_searchpair(typval_T *argvars, typval_T *rettv); static void f_searchpairpos(typval_T *argvars, typval_T *rettv); static void f_searchpos(typval_T *argvars, typval_T *rettv); #ifdef FEAT_CHANNEL static void f_sendexpr(typval_T *argvars, typval_T *rettv); static void f_sendraw(typval_T *argvars, typval_T *rettv); #endif static void f_server2client(typval_T *argvars, typval_T *rettv); static void f_serverlist(typval_T *argvars, typval_T *rettv); static void f_setbufvar(typval_T *argvars, typval_T *rettv); static void f_setcharsearch(typval_T *argvars, typval_T *rettv); static void f_setcmdpos(typval_T *argvars, typval_T *rettv); static void f_setline(typval_T *argvars, typval_T *rettv); static void f_setloclist(typval_T *argvars, typval_T *rettv); static void f_setmatches(typval_T *argvars, typval_T *rettv); static void f_setpos(typval_T *argvars, typval_T *rettv); static void f_setqflist(typval_T *argvars, typval_T *rettv); static void f_setreg(typval_T *argvars, typval_T *rettv); static void f_settabvar(typval_T *argvars, typval_T *rettv); static void f_settabwinvar(typval_T *argvars, typval_T *rettv); static void f_setwinvar(typval_T *argvars, typval_T *rettv); #ifdef FEAT_CRYPT static void f_sha256(typval_T *argvars, typval_T *rettv); #endif /* FEAT_CRYPT */ static void f_shellescape(typval_T *argvars, typval_T *rettv); static void f_shiftwidth(typval_T *argvars, typval_T *rettv); static void f_simplify(typval_T *argvars, typval_T *rettv); #ifdef FEAT_FLOAT static void f_sin(typval_T *argvars, typval_T *rettv); static void f_sinh(typval_T *argvars, typval_T *rettv); #endif static void f_sort(typval_T *argvars, typval_T *rettv); static void f_soundfold(typval_T *argvars, typval_T *rettv); static void f_spellbadword(typval_T *argvars, typval_T *rettv); static void f_spellsuggest(typval_T *argvars, typval_T *rettv); static void f_split(typval_T *argvars, typval_T *rettv); #ifdef FEAT_FLOAT static void f_sqrt(typval_T *argvars, typval_T *rettv); static void f_str2float(typval_T *argvars, typval_T *rettv); #endif static void f_str2nr(typval_T *argvars, typval_T *rettv); static void f_strchars(typval_T *argvars, typval_T *rettv); #ifdef HAVE_STRFTIME static void f_strftime(typval_T *argvars, typval_T *rettv); #endif static void f_stridx(typval_T *argvars, typval_T *rettv); static void f_string(typval_T *argvars, typval_T *rettv); static void f_strlen(typval_T *argvars, typval_T *rettv); static void f_strpart(typval_T *argvars, typval_T *rettv); static void f_strridx(typval_T *argvars, typval_T *rettv); static void f_strtrans(typval_T *argvars, typval_T *rettv); static void f_strdisplaywidth(typval_T *argvars, typval_T *rettv); static void f_strwidth(typval_T *argvars, typval_T *rettv); static void f_submatch(typval_T *argvars, typval_T *rettv); static void f_substitute(typval_T *argvars, typval_T *rettv); static void f_synID(typval_T *argvars, typval_T *rettv); static void f_synIDattr(typval_T *argvars, typval_T *rettv); static void f_synIDtrans(typval_T *argvars, typval_T *rettv); static void f_synstack(typval_T *argvars, typval_T *rettv); static void f_synconcealed(typval_T *argvars, typval_T *rettv); static void f_system(typval_T *argvars, typval_T *rettv); static void f_systemlist(typval_T *argvars, typval_T *rettv); static void f_tabpagebuflist(typval_T *argvars, typval_T *rettv); static void f_tabpagenr(typval_T *argvars, typval_T *rettv); static void f_tabpagewinnr(typval_T *argvars, typval_T *rettv); static void f_taglist(typval_T *argvars, typval_T *rettv); static void f_tagfiles(typval_T *argvars, typval_T *rettv); static void f_tempname(typval_T *argvars, typval_T *rettv); static void f_test(typval_T *argvars, typval_T *rettv); #ifdef FEAT_FLOAT static void f_tan(typval_T *argvars, typval_T *rettv); static void f_tanh(typval_T *argvars, typval_T *rettv); #endif static void f_tolower(typval_T *argvars, typval_T *rettv); static void f_toupper(typval_T *argvars, typval_T *rettv); static void f_tr(typval_T *argvars, typval_T *rettv); #ifdef FEAT_FLOAT static void f_trunc(typval_T *argvars, typval_T *rettv); #endif static void f_type(typval_T *argvars, typval_T *rettv); static void f_undofile(typval_T *argvars, typval_T *rettv); static void f_undotree(typval_T *argvars, typval_T *rettv); static void f_uniq(typval_T *argvars, typval_T *rettv); static void f_values(typval_T *argvars, typval_T *rettv); static void f_virtcol(typval_T *argvars, typval_T *rettv); static void f_visualmode(typval_T *argvars, typval_T *rettv); static void f_wildmenumode(typval_T *argvars, typval_T *rettv); static void f_winbufnr(typval_T *argvars, typval_T *rettv); static void f_wincol(typval_T *argvars, typval_T *rettv); static void f_winheight(typval_T *argvars, typval_T *rettv); static void f_winline(typval_T *argvars, typval_T *rettv); static void f_winnr(typval_T *argvars, typval_T *rettv); static void f_winrestcmd(typval_T *argvars, typval_T *rettv); static void f_winrestview(typval_T *argvars, typval_T *rettv); static void f_winsaveview(typval_T *argvars, typval_T *rettv); static void f_winwidth(typval_T *argvars, typval_T *rettv); static void f_writefile(typval_T *argvars, typval_T *rettv); static void f_wordcount(typval_T *argvars, typval_T *rettv); static void f_xor(typval_T *argvars, typval_T *rettv); static int list2fpos(typval_T *arg, pos_T *posp, int *fnump, colnr_T *curswantp); static pos_T *var2fpos(typval_T *varp, int dollar_lnum, int *fnum); static int get_env_len(char_u **arg); static int get_id_len(char_u **arg); static int get_name_len(char_u **arg, char_u **alias, int evaluate, int verbose); static char_u *find_name_end(char_u *arg, char_u **expr_start, char_u **expr_end, int flags); #define FNE_INCL_BR 1 /* find_name_end(): include [] in name */ #define FNE_CHECK_START 2 /* find_name_end(): check name starts with valid character */ static char_u * make_expanded_name(char_u *in_start, char_u *expr_start, char_u *expr_end, char_u *in_end); static int eval_isnamec(int c); static int eval_isnamec1(int c); static int get_var_tv(char_u *name, int len, typval_T *rettv, dictitem_T **dip, int verbose, int no_autoload); static int handle_subscript(char_u **arg, typval_T *rettv, int evaluate, int verbose); static typval_T *alloc_tv(void); static typval_T *alloc_string_tv(char_u *string); static void init_tv(typval_T *varp); static long get_tv_number(typval_T *varp); #ifdef FEAT_FLOAT static float_T get_tv_float(typval_T *varp); #endif static linenr_T get_tv_lnum(typval_T *argvars); static linenr_T get_tv_lnum_buf(typval_T *argvars, buf_T *buf); static char_u *get_tv_string(typval_T *varp); static char_u *get_tv_string_buf(typval_T *varp, char_u *buf); static dictitem_T *find_var(char_u *name, hashtab_T **htp, int no_autoload); static dictitem_T *find_var_in_ht(hashtab_T *ht, int htname, char_u *varname, int no_autoload); static hashtab_T *find_var_ht(char_u *name, char_u **varname); static funccall_T *get_funccal(void); static void vars_clear_ext(hashtab_T *ht, int free_val); static void delete_var(hashtab_T *ht, hashitem_T *hi); static void list_one_var(dictitem_T *v, char_u *prefix, int *first); static void list_one_var_a(char_u *prefix, char_u *name, int type, char_u *string, int *first); static void set_var(char_u *name, typval_T *varp, int copy); static int var_check_ro(int flags, char_u *name, int use_gettext); static int var_check_fixed(int flags, char_u *name, int use_gettext); static int var_check_func_name(char_u *name, int new_var); static int valid_varname(char_u *varname); static int tv_check_lock(int lock, char_u *name, int use_gettext); static int item_copy(typval_T *from, typval_T *to, int deep, int copyID); static char_u *find_option_end(char_u **arg, int *opt_flags); static char_u *trans_function_name(char_u **pp, int skip, int flags, funcdict_T *fd); static int eval_fname_script(char_u *p); static int eval_fname_sid(char_u *p); static void list_func_head(ufunc_T *fp, int indent); static ufunc_T *find_func(char_u *name); static int function_exists(char_u *name); static int builtin_function(char_u *name, int len); #ifdef FEAT_PROFILE static void func_do_profile(ufunc_T *fp); static void prof_sort_list(FILE *fd, ufunc_T **sorttab, int st_len, char *title, int prefer_self); static void prof_func_line(FILE *fd, int count, proftime_T *total, proftime_T *self, int prefer_self); static int # ifdef __BORLANDC__ _RTLENTRYF # endif prof_total_cmp(const void *s1, const void *s2); static int # ifdef __BORLANDC__ _RTLENTRYF # endif prof_self_cmp(const void *s1, const void *s2); #endif static int script_autoload(char_u *name, int reload); static char_u *autoload_name(char_u *name); static void cat_func_name(char_u *buf, ufunc_T *fp); static void func_free(ufunc_T *fp); static void call_user_func(ufunc_T *fp, int argcount, typval_T *argvars, typval_T *rettv, linenr_T firstline, linenr_T lastline, dict_T *selfdict); static int can_free_funccal(funccall_T *fc, int copyID) ; static void free_funccal(funccall_T *fc, int free_val); static void add_nr_var(dict_T *dp, dictitem_T *v, char *name, varnumber_T nr); static win_T *find_win_by_nr(typval_T *vp, tabpage_T *tp); static win_T *find_tabwin(typval_T *wvp, typval_T *tvp); static void getwinvar(typval_T *argvars, typval_T *rettv, int off); static int searchpair_cmn(typval_T *argvars, pos_T *match_pos); static int search_cmn(typval_T *argvars, pos_T *match_pos, int *flagsp); static void setwinvar(typval_T *argvars, typval_T *rettv, int off); static int write_list(FILE *fd, list_T *list, int binary); static void get_cmd_output_as_rettv(typval_T *argvars, typval_T *rettv, int retlist); #ifdef EBCDIC static int compare_func_name(const void *s1, const void *s2); static void sortFunctions(); #endif /* * Initialize the global and v: variables. */ void eval_init() { int i; struct vimvar *p; init_var_dict(&globvardict, &globvars_var, VAR_DEF_SCOPE); init_var_dict(&vimvardict, &vimvars_var, VAR_SCOPE); vimvardict.dv_lock = VAR_FIXED; hash_init(&compat_hashtab); hash_init(&func_hashtab); for (i = 0; i < VV_LEN; ++i) { p = &vimvars[i]; STRCPY(p->vv_di.di_key, p->vv_name); if (p->vv_flags & VV_RO) p->vv_di.di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; else if (p->vv_flags & VV_RO_SBX) p->vv_di.di_flags = DI_FLAGS_RO_SBX | DI_FLAGS_FIX; else p->vv_di.di_flags = DI_FLAGS_FIX; /* add to v: scope dict, unless the value is not always available */ if (p->vv_type != VAR_UNKNOWN) hash_add(&vimvarht, p->vv_di.di_key); if (p->vv_flags & VV_COMPAT) /* add to compat scope dict */ hash_add(&compat_hashtab, p->vv_di.di_key); } set_vim_var_nr(VV_SEARCHFORWARD, 1L); set_vim_var_nr(VV_HLSEARCH, 1L); set_vim_var_dict(VV_COMPLETED_ITEM, dict_alloc()); set_vim_var_list(VV_ERRORS, list_alloc()); set_vim_var_nr(VV_FALSE, VVAL_FALSE); set_vim_var_nr(VV_TRUE, VVAL_TRUE); set_vim_var_nr(VV_NONE, VVAL_NONE); set_vim_var_nr(VV_NULL, VVAL_NULL); set_reg_var(0); /* default for v:register is not 0 but '"' */ #ifdef EBCDIC /* * Sort the function table, to enable binary search. */ sortFunctions(); #endif } #if defined(EXITFREE) || defined(PROTO) void eval_clear() { int i; struct vimvar *p; for (i = 0; i < VV_LEN; ++i) { p = &vimvars[i]; if (p->vv_di.di_tv.v_type == VAR_STRING) { vim_free(p->vv_str); p->vv_str = NULL; } else if (p->vv_di.di_tv.v_type == VAR_LIST) { list_unref(p->vv_list); p->vv_list = NULL; } } hash_clear(&vimvarht); hash_init(&vimvarht); /* garbage_collect() will access it */ hash_clear(&compat_hashtab); free_scriptnames(); # if defined(FEAT_CMDL_COMPL) free_locales(); # endif /* global variables */ vars_clear(&globvarht); /* autoloaded script names */ ga_clear_strings(&ga_loaded); /* Script-local variables. First clear all the variables and in a second * loop free the scriptvar_T, because a variable in one script might hold * a reference to the whole scope of another script. */ for (i = 1; i <= ga_scripts.ga_len; ++i) vars_clear(&SCRIPT_VARS(i)); for (i = 1; i <= ga_scripts.ga_len; ++i) vim_free(SCRIPT_SV(i)); ga_clear(&ga_scripts); /* unreferenced lists and dicts */ (void)garbage_collect(); /* functions */ free_all_functions(); hash_clear(&func_hashtab); } #endif /* * Return the name of the executed function. */ char_u * func_name(void *cookie) { return ((funccall_T *)cookie)->func->uf_name; } /* * Return the address holding the next breakpoint line for a funccall cookie. */ linenr_T * func_breakpoint(cookie) void *cookie; { return &((funccall_T *)cookie)->breakpoint; } /* * Return the address holding the debug tick for a funccall cookie. */ int * func_dbg_tick(void *cookie) { return &((funccall_T *)cookie)->dbg_tick; } /* * Return the nesting level for a funccall cookie. */ int func_level(void *cookie) { return ((funccall_T *)cookie)->level; } /* pointer to funccal for currently active function */ funccall_T *current_funccal = NULL; /* pointer to list of previously used funccal, still around because some * item in it is still being used. */ funccall_T *previous_funccal = NULL; /* * Return TRUE when a function was ended by a ":return" command. */ int current_func_returned() { return current_funccal->returned; } /* * Set an internal variable to a string value. Creates the variable if it does * not already exist. */ void set_internal_string_var(char_u *name, char_u *value) { char_u *val; typval_T *tvp; val = vim_strsave(value); if (val != NULL) { tvp = alloc_string_tv(val); if (tvp != NULL) { set_var(name, tvp, FALSE); free_tv(tvp); } } } static lval_T *redir_lval = NULL; static garray_T redir_ga; /* only valid when redir_lval is not NULL */ static char_u *redir_endp = NULL; static char_u *redir_varname = NULL; /* * Start recording command output to a variable * When "append" is TRUE append to an existing variable. * Returns OK if successfully completed the setup. FAIL otherwise. */ int var_redir_start(char_u *name, int append) { int save_emsg; int err; typval_T tv; /* Catch a bad name early. */ if (!eval_isnamec1(*name)) { EMSG(_(e_invarg)); return FAIL; } /* Make a copy of the name, it is used in redir_lval until redir ends. */ redir_varname = vim_strsave(name); if (redir_varname == NULL) return FAIL; redir_lval = (lval_T *)alloc_clear((unsigned)sizeof(lval_T)); if (redir_lval == NULL) { var_redir_stop(); return FAIL; } /* The output is stored in growarray "redir_ga" until redirection ends. */ ga_init2(&redir_ga, (int)sizeof(char), 500); /* Parse the variable name (can be a dict or list entry). */ redir_endp = get_lval(redir_varname, NULL, redir_lval, FALSE, FALSE, 0, FNE_CHECK_START); if (redir_endp == NULL || redir_lval->ll_name == NULL || *redir_endp != NUL) { clear_lval(redir_lval); if (redir_endp != NULL && *redir_endp != NUL) /* Trailing characters are present after the variable name */ EMSG(_(e_trailing)); else EMSG(_(e_invarg)); redir_endp = NULL; /* don't store a value, only cleanup */ var_redir_stop(); return FAIL; } /* check if we can write to the variable: set it to or append an empty * string */ save_emsg = did_emsg; did_emsg = FALSE; tv.v_type = VAR_STRING; tv.vval.v_string = (char_u *)""; if (append) set_var_lval(redir_lval, redir_endp, &tv, TRUE, (char_u *)"."); else set_var_lval(redir_lval, redir_endp, &tv, TRUE, (char_u *)"="); clear_lval(redir_lval); err = did_emsg; did_emsg |= save_emsg; if (err) { redir_endp = NULL; /* don't store a value, only cleanup */ var_redir_stop(); return FAIL; } return OK; } /* * Append "value[value_len]" to the variable set by var_redir_start(). * The actual appending is postponed until redirection ends, because the value * appended may in fact be the string we write to, changing it may cause freed * memory to be used: * :redir => foo * :let foo * :redir END */ void var_redir_str(char_u *value, int value_len) { int len; if (redir_lval == NULL) return; if (value_len == -1) len = (int)STRLEN(value); /* Append the entire string */ else len = value_len; /* Append only "value_len" characters */ if (ga_grow(&redir_ga, len) == OK) { mch_memmove((char *)redir_ga.ga_data + redir_ga.ga_len, value, len); redir_ga.ga_len += len; } else var_redir_stop(); } /* * Stop redirecting command output to a variable. * Frees the allocated memory. */ void var_redir_stop() { typval_T tv; if (redir_lval != NULL) { /* If there was no error: assign the text to the variable. */ if (redir_endp != NULL) { ga_append(&redir_ga, NUL); /* Append the trailing NUL. */ tv.v_type = VAR_STRING; tv.vval.v_string = redir_ga.ga_data; /* Call get_lval() again, if it's inside a Dict or List it may * have changed. */ redir_endp = get_lval(redir_varname, NULL, redir_lval, FALSE, FALSE, 0, FNE_CHECK_START); if (redir_endp != NULL && redir_lval->ll_name != NULL) set_var_lval(redir_lval, redir_endp, &tv, FALSE, (char_u *)"."); clear_lval(redir_lval); } /* free the collected output */ vim_free(redir_ga.ga_data); redir_ga.ga_data = NULL; vim_free(redir_lval); redir_lval = NULL; } vim_free(redir_varname); redir_varname = NULL; } # if defined(FEAT_MBYTE) || defined(PROTO) int eval_charconvert( char_u *enc_from, char_u *enc_to, char_u *fname_from, char_u *fname_to) { int err = FALSE; set_vim_var_string(VV_CC_FROM, enc_from, -1); set_vim_var_string(VV_CC_TO, enc_to, -1); set_vim_var_string(VV_FNAME_IN, fname_from, -1); set_vim_var_string(VV_FNAME_OUT, fname_to, -1); if (eval_to_bool(p_ccv, &err, NULL, FALSE)) err = TRUE; set_vim_var_string(VV_CC_FROM, NULL, -1); set_vim_var_string(VV_CC_TO, NULL, -1); set_vim_var_string(VV_FNAME_IN, NULL, -1); set_vim_var_string(VV_FNAME_OUT, NULL, -1); if (err) return FAIL; return OK; } # endif # if defined(FEAT_POSTSCRIPT) || defined(PROTO) int eval_printexpr(fname, args) char_u *fname; char_u *args; { int err = FALSE; set_vim_var_string(VV_FNAME_IN, fname, -1); set_vim_var_string(VV_CMDARG, args, -1); if (eval_to_bool(p_pexpr, &err, NULL, FALSE)) err = TRUE; set_vim_var_string(VV_FNAME_IN, NULL, -1); set_vim_var_string(VV_CMDARG, NULL, -1); if (err) { mch_remove(fname); return FAIL; } return OK; } # endif # if defined(FEAT_DIFF) || defined(PROTO) void eval_diff(origfile, newfile, outfile) char_u *origfile; char_u *newfile; char_u *outfile; { int err = FALSE; set_vim_var_string(VV_FNAME_IN, origfile, -1); set_vim_var_string(VV_FNAME_NEW, newfile, -1); set_vim_var_string(VV_FNAME_OUT, outfile, -1); (void)eval_to_bool(p_dex, &err, NULL, FALSE); set_vim_var_string(VV_FNAME_IN, NULL, -1); set_vim_var_string(VV_FNAME_NEW, NULL, -1); set_vim_var_string(VV_FNAME_OUT, NULL, -1); } void eval_patch(origfile, difffile, outfile) char_u *origfile; char_u *difffile; char_u *outfile; { int err; set_vim_var_string(VV_FNAME_IN, origfile, -1); set_vim_var_string(VV_FNAME_DIFF, difffile, -1); set_vim_var_string(VV_FNAME_OUT, outfile, -1); (void)eval_to_bool(p_pex, &err, NULL, FALSE); set_vim_var_string(VV_FNAME_IN, NULL, -1); set_vim_var_string(VV_FNAME_DIFF, NULL, -1); set_vim_var_string(VV_FNAME_OUT, NULL, -1); } # endif /* * Top level evaluation function, returning a boolean. * Sets "error" to TRUE if there was an error. * Return TRUE or FALSE. */ int eval_to_bool(arg, error, nextcmd, skip) char_u *arg; int *error; char_u **nextcmd; int skip; /* only parse, don't execute */ { typval_T tv; int retval = FALSE; if (skip) ++emsg_skip; if (eval0(arg, &tv, nextcmd, !skip) == FAIL) *error = TRUE; else { *error = FALSE; if (!skip) { retval = (get_tv_number_chk(&tv, error) != 0); clear_tv(&tv); } } if (skip) --emsg_skip; return retval; } /* * Top level evaluation function, returning a string. If "skip" is TRUE, * only parsing to "nextcmd" is done, without reporting errors. Return * pointer to allocated memory, or NULL for failure or when "skip" is TRUE. */ char_u * eval_to_string_skip(arg, nextcmd, skip) char_u *arg; char_u **nextcmd; int skip; /* only parse, don't execute */ { typval_T tv; char_u *retval; if (skip) ++emsg_skip; if (eval0(arg, &tv, nextcmd, !skip) == FAIL || skip) retval = NULL; else { retval = vim_strsave(get_tv_string(&tv)); clear_tv(&tv); } if (skip) --emsg_skip; return retval; } /* * Skip over an expression at "*pp". * Return FAIL for an error, OK otherwise. */ int skip_expr(pp) char_u **pp; { typval_T rettv; *pp = skipwhite(*pp); return eval1(pp, &rettv, FALSE); } /* * Top level evaluation function, returning a string. * When "convert" is TRUE convert a List into a sequence of lines and convert * a Float to a String. * Return pointer to allocated memory, or NULL for failure. */ char_u * eval_to_string(arg, nextcmd, convert) char_u *arg; char_u **nextcmd; int convert; { typval_T tv; char_u *retval; garray_T ga; #ifdef FEAT_FLOAT char_u numbuf[NUMBUFLEN]; #endif if (eval0(arg, &tv, nextcmd, TRUE) == FAIL) retval = NULL; else { if (convert && tv.v_type == VAR_LIST) { ga_init2(&ga, (int)sizeof(char), 80); if (tv.vval.v_list != NULL) { list_join(&ga, tv.vval.v_list, (char_u *)"\n", TRUE, 0); if (tv.vval.v_list->lv_len > 0) ga_append(&ga, NL); } ga_append(&ga, NUL); retval = (char_u *)ga.ga_data; } #ifdef FEAT_FLOAT else if (convert && tv.v_type == VAR_FLOAT) { vim_snprintf((char *)numbuf, NUMBUFLEN, "%g", tv.vval.v_float); retval = vim_strsave(numbuf); } #endif else retval = vim_strsave(get_tv_string(&tv)); clear_tv(&tv); } return retval; } /* * Call eval_to_string() without using current local variables and using * textlock. When "use_sandbox" is TRUE use the sandbox. */ char_u * eval_to_string_safe(arg, nextcmd, use_sandbox) char_u *arg; char_u **nextcmd; int use_sandbox; { char_u *retval; void *save_funccalp; save_funccalp = save_funccal(); if (use_sandbox) ++sandbox; ++textlock; retval = eval_to_string(arg, nextcmd, FALSE); if (use_sandbox) --sandbox; --textlock; restore_funccal(save_funccalp); return retval; } /* * Top level evaluation function, returning a number. * Evaluates "expr" silently. * Returns -1 for an error. */ int eval_to_number(expr) char_u *expr; { typval_T rettv; int retval; char_u *p = skipwhite(expr); ++emsg_off; if (eval1(&p, &rettv, TRUE) == FAIL) retval = -1; else { retval = get_tv_number_chk(&rettv, NULL); clear_tv(&rettv); } --emsg_off; return retval; } /* * Prepare v: variable "idx" to be used. * Save the current typeval in "save_tv". * When not used yet add the variable to the v: hashtable. */ static void prepare_vimvar(idx, save_tv) int idx; typval_T *save_tv; { *save_tv = vimvars[idx].vv_tv; if (vimvars[idx].vv_type == VAR_UNKNOWN) hash_add(&vimvarht, vimvars[idx].vv_di.di_key); } /* * Restore v: variable "idx" to typeval "save_tv". * When no longer defined, remove the variable from the v: hashtable. */ static void restore_vimvar(idx, save_tv) int idx; typval_T *save_tv; { hashitem_T *hi; vimvars[idx].vv_tv = *save_tv; if (vimvars[idx].vv_type == VAR_UNKNOWN) { hi = hash_find(&vimvarht, vimvars[idx].vv_di.di_key); if (HASHITEM_EMPTY(hi)) EMSG2(_(e_intern2), "restore_vimvar()"); else hash_remove(&vimvarht, hi); } } #if defined(FEAT_SPELL) || defined(PROTO) /* * Evaluate an expression to a list with suggestions. * For the "expr:" part of 'spellsuggest'. * Returns NULL when there is an error. */ list_T * eval_spell_expr(badword, expr) char_u *badword; char_u *expr; { typval_T save_val; typval_T rettv; list_T *list = NULL; char_u *p = skipwhite(expr); /* Set "v:val" to the bad word. */ prepare_vimvar(VV_VAL, &save_val); vimvars[VV_VAL].vv_type = VAR_STRING; vimvars[VV_VAL].vv_str = badword; if (p_verbose == 0) ++emsg_off; if (eval1(&p, &rettv, TRUE) == OK) { if (rettv.v_type != VAR_LIST) clear_tv(&rettv); else list = rettv.vval.v_list; } if (p_verbose == 0) --emsg_off; restore_vimvar(VV_VAL, &save_val); return list; } /* * "list" is supposed to contain two items: a word and a number. Return the * word in "pp" and the number as the return value. * Return -1 if anything isn't right. * Used to get the good word and score from the eval_spell_expr() result. */ int get_spellword(list, pp) list_T *list; char_u **pp; { listitem_T *li; li = list->lv_first; if (li == NULL) return -1; *pp = get_tv_string(&li->li_tv); li = li->li_next; if (li == NULL) return -1; return get_tv_number(&li->li_tv); } #endif /* * Top level evaluation function. * Returns an allocated typval_T with the result. * Returns NULL when there is an error. */ typval_T * eval_expr(arg, nextcmd) char_u *arg; char_u **nextcmd; { typval_T *tv; tv = (typval_T *)alloc(sizeof(typval_T)); if (tv != NULL && eval0(arg, tv, nextcmd, TRUE) == FAIL) { vim_free(tv); tv = NULL; } return tv; } /* * Call some vimL function and return the result in "*rettv". * Uses argv[argc] for the function arguments. Only Number and String * arguments are currently supported. * Returns OK or FAIL. */ int call_vim_function(func, argc, argv, safe, str_arg_only, rettv) char_u *func; int argc; char_u **argv; int safe; /* use the sandbox */ int str_arg_only; /* all arguments are strings */ typval_T *rettv; { typval_T *argvars; long n; int len; int i; int doesrange; void *save_funccalp = NULL; int ret; argvars = (typval_T *)alloc((unsigned)((argc + 1) * sizeof(typval_T))); if (argvars == NULL) return FAIL; for (i = 0; i < argc; i++) { /* Pass a NULL or empty argument as an empty string */ if (argv[i] == NULL || *argv[i] == NUL) { argvars[i].v_type = VAR_STRING; argvars[i].vval.v_string = (char_u *)""; continue; } if (str_arg_only) len = 0; else /* Recognize a number argument, the others must be strings. */ vim_str2nr(argv[i], NULL, &len, STR2NR_ALL, &n, NULL, 0); if (len != 0 && len == (int)STRLEN(argv[i])) { argvars[i].v_type = VAR_NUMBER; argvars[i].vval.v_number = n; } else { argvars[i].v_type = VAR_STRING; argvars[i].vval.v_string = argv[i]; } } if (safe) { save_funccalp = save_funccal(); ++sandbox; } rettv->v_type = VAR_UNKNOWN; /* clear_tv() uses this */ ret = call_func(func, (int)STRLEN(func), rettv, argc, argvars, curwin->w_cursor.lnum, curwin->w_cursor.lnum, &doesrange, TRUE, NULL); if (safe) { --sandbox; restore_funccal(save_funccalp); } vim_free(argvars); if (ret == FAIL) clear_tv(rettv); return ret; } /* * Call vimL function "func" and return the result as a number. * Returns -1 when calling the function fails. * Uses argv[argc] for the function arguments. */ long call_func_retnr(func, argc, argv, safe) char_u *func; int argc; char_u **argv; int safe; /* use the sandbox */ { typval_T rettv; long retval; /* All arguments are passed as strings, no conversion to number. */ if (call_vim_function(func, argc, argv, safe, TRUE, &rettv) == FAIL) return -1; retval = get_tv_number_chk(&rettv, NULL); clear_tv(&rettv); return retval; } #if (defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)) \ || defined(FEAT_COMPL_FUNC) || defined(PROTO) # if (defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)) || defined(PROTO) /* * Call vimL function "func" and return the result as a string. * Returns NULL when calling the function fails. * Uses argv[argc] for the function arguments. */ void * call_func_retstr(func, argc, argv, safe) char_u *func; int argc; char_u **argv; int safe; /* use the sandbox */ { typval_T rettv; char_u *retval; /* All arguments are passed as strings, no conversion to number. */ if (call_vim_function(func, argc, argv, safe, TRUE, &rettv) == FAIL) return NULL; retval = vim_strsave(get_tv_string(&rettv)); clear_tv(&rettv); return retval; } # endif /* * Call vimL function "func" and return the result as a List. * Uses argv[argc] for the function arguments. * Returns NULL when there is something wrong. */ void * call_func_retlist(func, argc, argv, safe) char_u *func; int argc; char_u **argv; int safe; /* use the sandbox */ { typval_T rettv; /* All arguments are passed as strings, no conversion to number. */ if (call_vim_function(func, argc, argv, safe, TRUE, &rettv) == FAIL) return NULL; if (rettv.v_type != VAR_LIST) { clear_tv(&rettv); return NULL; } return rettv.vval.v_list; } #endif /* * Save the current function call pointer, and set it to NULL. * Used when executing autocommands and for ":source". */ void * save_funccal() { funccall_T *fc = current_funccal; current_funccal = NULL; return (void *)fc; } void restore_funccal(vfc) void *vfc; { funccall_T *fc = (funccall_T *)vfc; current_funccal = fc; } #if defined(FEAT_PROFILE) || defined(PROTO) /* * Prepare profiling for entering a child or something else that is not * counted for the script/function itself. * Should always be called in pair with prof_child_exit(). */ void prof_child_enter(tm) proftime_T *tm; /* place to store waittime */ { funccall_T *fc = current_funccal; if (fc != NULL && fc->func->uf_profiling) profile_start(&fc->prof_child); script_prof_save(tm); } /* * Take care of time spent in a child. * Should always be called after prof_child_enter(). */ void prof_child_exit(tm) proftime_T *tm; /* where waittime was stored */ { funccall_T *fc = current_funccal; if (fc != NULL && fc->func->uf_profiling) { profile_end(&fc->prof_child); profile_sub_wait(tm, &fc->prof_child); /* don't count waiting time */ profile_add(&fc->func->uf_tm_children, &fc->prof_child); profile_add(&fc->func->uf_tml_children, &fc->prof_child); } script_prof_restore(tm); } #endif #ifdef FEAT_FOLDING /* * Evaluate 'foldexpr'. Returns the foldlevel, and any character preceding * it in "*cp". Doesn't give error messages. */ int eval_foldexpr(arg, cp) char_u *arg; int *cp; { typval_T tv; int retval; char_u *s; int use_sandbox = was_set_insecurely((char_u *)"foldexpr", OPT_LOCAL); ++emsg_off; if (use_sandbox) ++sandbox; ++textlock; *cp = NUL; if (eval0(arg, &tv, NULL, TRUE) == FAIL) retval = 0; else { /* If the result is a number, just return the number. */ if (tv.v_type == VAR_NUMBER) retval = tv.vval.v_number; else if (tv.v_type != VAR_STRING || tv.vval.v_string == NULL) retval = 0; else { /* If the result is a string, check if there is a non-digit before * the number. */ s = tv.vval.v_string; if (!VIM_ISDIGIT(*s) && *s != '-') *cp = *s++; retval = atol((char *)s); } clear_tv(&tv); } --emsg_off; if (use_sandbox) --sandbox; --textlock; return retval; } #endif /* * ":let" list all variable values * ":let var1 var2" list variable values * ":let var = expr" assignment command. * ":let var += expr" assignment command. * ":let var -= expr" assignment command. * ":let var .= expr" assignment command. * ":let [var1, var2] = expr" unpack list. */ void ex_let(eap) exarg_T *eap; { char_u *arg = eap->arg; char_u *expr = NULL; typval_T rettv; int i; int var_count = 0; int semicolon = 0; char_u op[2]; char_u *argend; int first = TRUE; argend = skip_var_list(arg, &var_count, &semicolon); if (argend == NULL) return; if (argend > arg && argend[-1] == '.') /* for var.='str' */ --argend; expr = skipwhite(argend); if (*expr != '=' && !(vim_strchr((char_u *)"+-.", *expr) != NULL && expr[1] == '=')) { /* * ":let" without "=": list variables */ if (*arg == '[') EMSG(_(e_invarg)); else if (!ends_excmd(*arg)) /* ":let var1 var2" */ arg = list_arg_vars(eap, arg, &first); else if (!eap->skip) { /* ":let" */ list_glob_vars(&first); list_buf_vars(&first); list_win_vars(&first); #ifdef FEAT_WINDOWS list_tab_vars(&first); #endif list_script_vars(&first); list_func_vars(&first); list_vim_vars(&first); } eap->nextcmd = check_nextcmd(arg); } else { op[0] = '='; op[1] = NUL; if (*expr != '=') { if (vim_strchr((char_u *)"+-.", *expr) != NULL) op[0] = *expr; /* +=, -= or .= */ expr = skipwhite(expr + 2); } else expr = skipwhite(expr + 1); if (eap->skip) ++emsg_skip; i = eval0(expr, &rettv, &eap->nextcmd, !eap->skip); if (eap->skip) { if (i != FAIL) clear_tv(&rettv); --emsg_skip; } else if (i != FAIL) { (void)ex_let_vars(eap->arg, &rettv, FALSE, semicolon, var_count, op); clear_tv(&rettv); } } } /* * Assign the typevalue "tv" to the variable or variables at "arg_start". * Handles both "var" with any type and "[var, var; var]" with a list type. * When "nextchars" is not NULL it points to a string with characters that * must appear after the variable(s). Use "+", "-" or "." for add, subtract * or concatenate. * Returns OK or FAIL; */ static int ex_let_vars(arg_start, tv, copy, semicolon, var_count, nextchars) char_u *arg_start; typval_T *tv; int copy; /* copy values from "tv", don't move */ int semicolon; /* from skip_var_list() */ int var_count; /* from skip_var_list() */ char_u *nextchars; { char_u *arg = arg_start; list_T *l; int i; listitem_T *item; typval_T ltv; if (*arg != '[') { /* * ":let var = expr" or ":for var in list" */ if (ex_let_one(arg, tv, copy, nextchars, nextchars) == NULL) return FAIL; return OK; } /* * ":let [v1, v2] = list" or ":for [v1, v2] in listlist" */ if (tv->v_type != VAR_LIST || (l = tv->vval.v_list) == NULL) { EMSG(_(e_listreq)); return FAIL; } i = list_len(l); if (semicolon == 0 && var_count < i) { EMSG(_("E687: Less targets than List items")); return FAIL; } if (var_count - semicolon > i) { EMSG(_("E688: More targets than List items")); return FAIL; } item = l->lv_first; while (*arg != ']') { arg = skipwhite(arg + 1); arg = ex_let_one(arg, &item->li_tv, TRUE, (char_u *)",;]", nextchars); item = item->li_next; if (arg == NULL) return FAIL; arg = skipwhite(arg); if (*arg == ';') { /* Put the rest of the list (may be empty) in the var after ';'. * Create a new list for this. */ l = list_alloc(); if (l == NULL) return FAIL; while (item != NULL) { list_append_tv(l, &item->li_tv); item = item->li_next; } ltv.v_type = VAR_LIST; ltv.v_lock = 0; ltv.vval.v_list = l; l->lv_refcount = 1; arg = ex_let_one(skipwhite(arg + 1), <v, FALSE, (char_u *)"]", nextchars); clear_tv(<v); if (arg == NULL) return FAIL; break; } else if (*arg != ',' && *arg != ']') { EMSG2(_(e_intern2), "ex_let_vars()"); return FAIL; } } return OK; } /* * Skip over assignable variable "var" or list of variables "[var, var]". * Used for ":let varvar = expr" and ":for varvar in expr". * For "[var, var]" increment "*var_count" for each variable. * for "[var, var; var]" set "semicolon". * Return NULL for an error. */ static char_u * skip_var_list(arg, var_count, semicolon) char_u *arg; int *var_count; int *semicolon; { char_u *p, *s; if (*arg == '[') { /* "[var, var]": find the matching ']'. */ p = arg; for (;;) { p = skipwhite(p + 1); /* skip whites after '[', ';' or ',' */ s = skip_var_one(p); if (s == p) { EMSG2(_(e_invarg2), p); return NULL; } ++*var_count; p = skipwhite(s); if (*p == ']') break; else if (*p == ';') { if (*semicolon == 1) { EMSG(_("Double ; in list of variables")); return NULL; } *semicolon = 1; } else if (*p != ',') { EMSG2(_(e_invarg2), p); return NULL; } } return p + 1; } else return skip_var_one(arg); } /* * Skip one (assignable) variable name, including @r, $VAR, &option, d.key, * l[idx]. */ static char_u * skip_var_one(arg) char_u *arg; { if (*arg == '@' && arg[1] != NUL) return arg + 2; return find_name_end(*arg == '$' || *arg == '&' ? arg + 1 : arg, NULL, NULL, FNE_INCL_BR | FNE_CHECK_START); } /* * List variables for hashtab "ht" with prefix "prefix". * If "empty" is TRUE also list NULL strings as empty strings. */ static void list_hashtable_vars(ht, prefix, empty, first) hashtab_T *ht; char_u *prefix; int empty; int *first; { hashitem_T *hi; dictitem_T *di; int todo; todo = (int)ht->ht_used; for (hi = ht->ht_array; todo > 0 && !got_int; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; di = HI2DI(hi); if (empty || di->di_tv.v_type != VAR_STRING || di->di_tv.vval.v_string != NULL) list_one_var(di, prefix, first); } } } /* * List global variables. */ static void list_glob_vars(first) int *first; { list_hashtable_vars(&globvarht, (char_u *)"", TRUE, first); } /* * List buffer variables. */ static void list_buf_vars(first) int *first; { char_u numbuf[NUMBUFLEN]; list_hashtable_vars(&curbuf->b_vars->dv_hashtab, (char_u *)"b:", TRUE, first); sprintf((char *)numbuf, "%ld", (long)curbuf->b_changedtick); list_one_var_a((char_u *)"b:", (char_u *)"changedtick", VAR_NUMBER, numbuf, first); } /* * List window variables. */ static void list_win_vars(first) int *first; { list_hashtable_vars(&curwin->w_vars->dv_hashtab, (char_u *)"w:", TRUE, first); } #ifdef FEAT_WINDOWS /* * List tab page variables. */ static void list_tab_vars(first) int *first; { list_hashtable_vars(&curtab->tp_vars->dv_hashtab, (char_u *)"t:", TRUE, first); } #endif /* * List Vim variables. */ static void list_vim_vars(first) int *first; { list_hashtable_vars(&vimvarht, (char_u *)"v:", FALSE, first); } /* * List script-local variables, if there is a script. */ static void list_script_vars(first) int *first; { if (current_SID > 0 && current_SID <= ga_scripts.ga_len) list_hashtable_vars(&SCRIPT_VARS(current_SID), (char_u *)"s:", FALSE, first); } /* * List function variables, if there is a function. */ static void list_func_vars(first) int *first; { if (current_funccal != NULL) list_hashtable_vars(¤t_funccal->l_vars.dv_hashtab, (char_u *)"l:", FALSE, first); } /* * List variables in "arg". */ static char_u * list_arg_vars(eap, arg, first) exarg_T *eap; char_u *arg; int *first; { int error = FALSE; int len; char_u *name; char_u *name_start; char_u *arg_subsc; char_u *tofree; typval_T tv; while (!ends_excmd(*arg) && !got_int) { if (error || eap->skip) { arg = find_name_end(arg, NULL, NULL, FNE_INCL_BR | FNE_CHECK_START); if (!vim_iswhite(*arg) && !ends_excmd(*arg)) { emsg_severe = TRUE; EMSG(_(e_trailing)); break; } } else { /* get_name_len() takes care of expanding curly braces */ name_start = name = arg; len = get_name_len(&arg, &tofree, TRUE, TRUE); if (len <= 0) { /* This is mainly to keep test 49 working: when expanding * curly braces fails overrule the exception error message. */ if (len < 0 && !aborting()) { emsg_severe = TRUE; EMSG2(_(e_invarg2), arg); break; } error = TRUE; } else { if (tofree != NULL) name = tofree; if (get_var_tv(name, len, &tv, NULL, TRUE, FALSE) == FAIL) error = TRUE; else { /* handle d.key, l[idx], f(expr) */ arg_subsc = arg; if (handle_subscript(&arg, &tv, TRUE, TRUE) == FAIL) error = TRUE; else { if (arg == arg_subsc && len == 2 && name[1] == ':') { switch (*name) { case 'g': list_glob_vars(first); break; case 'b': list_buf_vars(first); break; case 'w': list_win_vars(first); break; #ifdef FEAT_WINDOWS case 't': list_tab_vars(first); break; #endif case 'v': list_vim_vars(first); break; case 's': list_script_vars(first); break; case 'l': list_func_vars(first); break; default: EMSG2(_("E738: Can't list variables for %s"), name); } } else { char_u numbuf[NUMBUFLEN]; char_u *tf; int c; char_u *s; s = echo_string(&tv, &tf, numbuf, 0); c = *arg; *arg = NUL; list_one_var_a((char_u *)"", arg == arg_subsc ? name : name_start, tv.v_type, s == NULL ? (char_u *)"" : s, first); *arg = c; vim_free(tf); } clear_tv(&tv); } } } vim_free(tofree); } arg = skipwhite(arg); } return arg; } /* * Set one item of ":let var = expr" or ":let [v1, v2] = list" to its value. * Returns a pointer to the char just after the var name. * Returns NULL if there is an error. */ static char_u * ex_let_one(arg, tv, copy, endchars, op) char_u *arg; /* points to variable name */ typval_T *tv; /* value to assign to variable */ int copy; /* copy value from "tv" */ char_u *endchars; /* valid chars after variable name or NULL */ char_u *op; /* "+", "-", "." or NULL*/ { int c1; char_u *name; char_u *p; char_u *arg_end = NULL; int len; int opt_flags; char_u *tofree = NULL; /* * ":let $VAR = expr": Set environment variable. */ if (*arg == '$') { /* Find the end of the name. */ ++arg; name = arg; len = get_env_len(&arg); if (len == 0) EMSG2(_(e_invarg2), name - 1); else { if (op != NULL && (*op == '+' || *op == '-')) EMSG2(_(e_letwrong), op); else if (endchars != NULL && vim_strchr(endchars, *skipwhite(arg)) == NULL) EMSG(_(e_letunexp)); else if (!check_secure()) { c1 = name[len]; name[len] = NUL; p = get_tv_string_chk(tv); if (p != NULL && op != NULL && *op == '.') { int mustfree = FALSE; char_u *s = vim_getenv(name, &mustfree); if (s != NULL) { p = tofree = concat_str(s, p); if (mustfree) vim_free(s); } } if (p != NULL) { vim_setenv(name, p); if (STRICMP(name, "HOME") == 0) init_homedir(); else if (didset_vim && STRICMP(name, "VIM") == 0) didset_vim = FALSE; else if (didset_vimruntime && STRICMP(name, "VIMRUNTIME") == 0) didset_vimruntime = FALSE; arg_end = arg; } name[len] = c1; vim_free(tofree); } } } /* * ":let &option = expr": Set option value. * ":let &l:option = expr": Set local option value. * ":let &g:option = expr": Set global option value. */ else if (*arg == '&') { /* Find the end of the name. */ p = find_option_end(&arg, &opt_flags); if (p == NULL || (endchars != NULL && vim_strchr(endchars, *skipwhite(p)) == NULL)) EMSG(_(e_letunexp)); else { long n; int opt_type; long numval; char_u *stringval = NULL; char_u *s; c1 = *p; *p = NUL; n = get_tv_number(tv); s = get_tv_string_chk(tv); /* != NULL if number or string */ if (s != NULL && op != NULL && *op != '=') { opt_type = get_option_value(arg, &numval, &stringval, opt_flags); if ((opt_type == 1 && *op == '.') || (opt_type == 0 && *op != '.')) EMSG2(_(e_letwrong), op); else { if (opt_type == 1) /* number */ { if (*op == '+') n = numval + n; else n = numval - n; } else if (opt_type == 0 && stringval != NULL) /* string */ { s = concat_str(stringval, s); vim_free(stringval); stringval = s; } } } if (s != NULL) { set_option_value(arg, n, s, opt_flags); arg_end = p; } *p = c1; vim_free(stringval); } } /* * ":let @r = expr": Set register contents. */ else if (*arg == '@') { ++arg; if (op != NULL && (*op == '+' || *op == '-')) EMSG2(_(e_letwrong), op); else if (endchars != NULL && vim_strchr(endchars, *skipwhite(arg + 1)) == NULL) EMSG(_(e_letunexp)); else { char_u *ptofree = NULL; char_u *s; p = get_tv_string_chk(tv); if (p != NULL && op != NULL && *op == '.') { s = get_reg_contents(*arg == '@' ? '"' : *arg, GREG_EXPR_SRC); if (s != NULL) { p = ptofree = concat_str(s, p); vim_free(s); } } if (p != NULL) { write_reg_contents(*arg == '@' ? '"' : *arg, p, -1, FALSE); arg_end = arg + 1; } vim_free(ptofree); } } /* * ":let var = expr": Set internal variable. * ":let {expr} = expr": Idem, name made with curly braces */ else if (eval_isnamec1(*arg) || *arg == '{') { lval_T lv; p = get_lval(arg, tv, &lv, FALSE, FALSE, 0, FNE_CHECK_START); if (p != NULL && lv.ll_name != NULL) { if (endchars != NULL && vim_strchr(endchars, *skipwhite(p)) == NULL) EMSG(_(e_letunexp)); else { set_var_lval(&lv, p, tv, copy, op); arg_end = p; } } clear_lval(&lv); } else EMSG2(_(e_invarg2), arg); return arg_end; } /* * If "arg" is equal to "b:changedtick" give an error and return TRUE. */ static int check_changedtick(arg) char_u *arg; { if (STRNCMP(arg, "b:changedtick", 13) == 0 && !eval_isnamec(arg[13])) { EMSG2(_(e_readonlyvar), arg); return TRUE; } return FALSE; } /* * Get an lval: variable, Dict item or List item that can be assigned a value * to: "name", "na{me}", "name[expr]", "name[expr:expr]", "name[expr][expr]", * "name.key", "name.key[expr]" etc. * Indexing only works if "name" is an existing List or Dictionary. * "name" points to the start of the name. * If "rettv" is not NULL it points to the value to be assigned. * "unlet" is TRUE for ":unlet": slightly different behavior when something is * wrong; must end in space or cmd separator. * * flags: * GLV_QUIET: do not give error messages * GLV_NO_AUTOLOAD: do not use script autoloading * * Returns a pointer to just after the name, including indexes. * When an evaluation error occurs "lp->ll_name" is NULL; * Returns NULL for a parsing error. Still need to free items in "lp"! */ static char_u * get_lval(name, rettv, lp, unlet, skip, flags, fne_flags) char_u *name; typval_T *rettv; lval_T *lp; int unlet; int skip; int flags; /* GLV_ values */ int fne_flags; /* flags for find_name_end() */ { char_u *p; char_u *expr_start, *expr_end; int cc; dictitem_T *v; typval_T var1; typval_T var2; int empty1 = FALSE; listitem_T *ni; char_u *key = NULL; int len; hashtab_T *ht; int quiet = flags & GLV_QUIET; /* Clear everything in "lp". */ vim_memset(lp, 0, sizeof(lval_T)); if (skip) { /* When skipping just find the end of the name. */ lp->ll_name = name; return find_name_end(name, NULL, NULL, FNE_INCL_BR | fne_flags); } /* Find the end of the name. */ p = find_name_end(name, &expr_start, &expr_end, fne_flags); if (expr_start != NULL) { /* Don't expand the name when we already know there is an error. */ if (unlet && !vim_iswhite(*p) && !ends_excmd(*p) && *p != '[' && *p != '.') { EMSG(_(e_trailing)); return NULL; } lp->ll_exp_name = make_expanded_name(name, expr_start, expr_end, p); if (lp->ll_exp_name == NULL) { /* Report an invalid expression in braces, unless the * expression evaluation has been cancelled due to an * aborting error, an interrupt, or an exception. */ if (!aborting() && !quiet) { emsg_severe = TRUE; EMSG2(_(e_invarg2), name); return NULL; } } lp->ll_name = lp->ll_exp_name; } else lp->ll_name = name; /* Without [idx] or .key we are done. */ if ((*p != '[' && *p != '.') || lp->ll_name == NULL) return p; cc = *p; *p = NUL; v = find_var(lp->ll_name, &ht, flags & GLV_NO_AUTOLOAD); if (v == NULL && !quiet) EMSG2(_(e_undefvar), lp->ll_name); *p = cc; if (v == NULL) return NULL; /* * Loop until no more [idx] or .key is following. */ lp->ll_tv = &v->di_tv; while (*p == '[' || (*p == '.' && lp->ll_tv->v_type == VAR_DICT)) { if (!(lp->ll_tv->v_type == VAR_LIST && lp->ll_tv->vval.v_list != NULL) && !(lp->ll_tv->v_type == VAR_DICT && lp->ll_tv->vval.v_dict != NULL)) { if (!quiet) EMSG(_("E689: Can only index a List or Dictionary")); return NULL; } if (lp->ll_range) { if (!quiet) EMSG(_("E708: [:] must come last")); return NULL; } len = -1; if (*p == '.') { key = p + 1; for (len = 0; ASCII_ISALNUM(key[len]) || key[len] == '_'; ++len) ; if (len == 0) { if (!quiet) EMSG(_(e_emptykey)); return NULL; } p = key + len; } else { /* Get the index [expr] or the first index [expr: ]. */ p = skipwhite(p + 1); if (*p == ':') empty1 = TRUE; else { empty1 = FALSE; if (eval1(&p, &var1, TRUE) == FAIL) /* recursive! */ return NULL; if (get_tv_string_chk(&var1) == NULL) { /* not a number or string */ clear_tv(&var1); return NULL; } } /* Optionally get the second index [ :expr]. */ if (*p == ':') { if (lp->ll_tv->v_type == VAR_DICT) { if (!quiet) EMSG(_(e_dictrange)); if (!empty1) clear_tv(&var1); return NULL; } if (rettv != NULL && (rettv->v_type != VAR_LIST || rettv->vval.v_list == NULL)) { if (!quiet) EMSG(_("E709: [:] requires a List value")); if (!empty1) clear_tv(&var1); return NULL; } p = skipwhite(p + 1); if (*p == ']') lp->ll_empty2 = TRUE; else { lp->ll_empty2 = FALSE; if (eval1(&p, &var2, TRUE) == FAIL) /* recursive! */ { if (!empty1) clear_tv(&var1); return NULL; } if (get_tv_string_chk(&var2) == NULL) { /* not a number or string */ if (!empty1) clear_tv(&var1); clear_tv(&var2); return NULL; } } lp->ll_range = TRUE; } else lp->ll_range = FALSE; if (*p != ']') { if (!quiet) EMSG(_(e_missbrac)); if (!empty1) clear_tv(&var1); if (lp->ll_range && !lp->ll_empty2) clear_tv(&var2); return NULL; } /* Skip to past ']'. */ ++p; } if (lp->ll_tv->v_type == VAR_DICT) { if (len == -1) { /* "[key]": get key from "var1" */ key = get_tv_string(&var1); /* is number or string */ if (*key == NUL) { if (!quiet) EMSG(_(e_emptykey)); clear_tv(&var1); return NULL; } } lp->ll_list = NULL; lp->ll_dict = lp->ll_tv->vval.v_dict; lp->ll_di = dict_find(lp->ll_dict, key, len); /* When assigning to a scope dictionary check that a function and * variable name is valid (only variable name unless it is l: or * g: dictionary). Disallow overwriting a builtin function. */ if (rettv != NULL && lp->ll_dict->dv_scope != 0) { int prevval; int wrong; if (len != -1) { prevval = key[len]; key[len] = NUL; } else prevval = 0; /* avoid compiler warning */ wrong = (lp->ll_dict->dv_scope == VAR_DEF_SCOPE && rettv->v_type == VAR_FUNC && var_check_func_name(key, lp->ll_di == NULL)) || !valid_varname(key); if (len != -1) key[len] = prevval; if (wrong) return NULL; } if (lp->ll_di == NULL) { /* Can't add "v:" variable. */ if (lp->ll_dict == &vimvardict) { EMSG2(_(e_illvar), name); return NULL; } /* Key does not exist in dict: may need to add it. */ if (*p == '[' || *p == '.' || unlet) { if (!quiet) EMSG2(_(e_dictkey), key); if (len == -1) clear_tv(&var1); return NULL; } if (len == -1) lp->ll_newkey = vim_strsave(key); else lp->ll_newkey = vim_strnsave(key, len); if (len == -1) clear_tv(&var1); if (lp->ll_newkey == NULL) p = NULL; break; } /* existing variable, need to check if it can be changed */ else if (var_check_ro(lp->ll_di->di_flags, name, FALSE)) return NULL; if (len == -1) clear_tv(&var1); lp->ll_tv = &lp->ll_di->di_tv; } else { /* * Get the number and item for the only or first index of the List. */ if (empty1) lp->ll_n1 = 0; else { lp->ll_n1 = get_tv_number(&var1); /* is number or string */ clear_tv(&var1); } lp->ll_dict = NULL; lp->ll_list = lp->ll_tv->vval.v_list; lp->ll_li = list_find(lp->ll_list, lp->ll_n1); if (lp->ll_li == NULL) { if (lp->ll_n1 < 0) { lp->ll_n1 = 0; lp->ll_li = list_find(lp->ll_list, lp->ll_n1); } } if (lp->ll_li == NULL) { if (lp->ll_range && !lp->ll_empty2) clear_tv(&var2); if (!quiet) EMSGN(_(e_listidx), lp->ll_n1); return NULL; } /* * May need to find the item or absolute index for the second * index of a range. * When no index given: "lp->ll_empty2" is TRUE. * Otherwise "lp->ll_n2" is set to the second index. */ if (lp->ll_range && !lp->ll_empty2) { lp->ll_n2 = get_tv_number(&var2); /* is number or string */ clear_tv(&var2); if (lp->ll_n2 < 0) { ni = list_find(lp->ll_list, lp->ll_n2); if (ni == NULL) { if (!quiet) EMSGN(_(e_listidx), lp->ll_n2); return NULL; } lp->ll_n2 = list_idx_of_item(lp->ll_list, ni); } /* Check that lp->ll_n2 isn't before lp->ll_n1. */ if (lp->ll_n1 < 0) lp->ll_n1 = list_idx_of_item(lp->ll_list, lp->ll_li); if (lp->ll_n2 < lp->ll_n1) { if (!quiet) EMSGN(_(e_listidx), lp->ll_n2); return NULL; } } lp->ll_tv = &lp->ll_li->li_tv; } } return p; } /* * Clear lval "lp" that was filled by get_lval(). */ static void clear_lval(lp) lval_T *lp; { vim_free(lp->ll_exp_name); vim_free(lp->ll_newkey); } /* * Set a variable that was parsed by get_lval() to "rettv". * "endp" points to just after the parsed name. * "op" is NULL, "+" for "+=", "-" for "-=", "." for ".=" or "=" for "=". */ static void set_var_lval(lp, endp, rettv, copy, op) lval_T *lp; char_u *endp; typval_T *rettv; int copy; char_u *op; { int cc; listitem_T *ri; dictitem_T *di; if (lp->ll_tv == NULL) { if (!check_changedtick(lp->ll_name)) { cc = *endp; *endp = NUL; if (op != NULL && *op != '=') { typval_T tv; /* handle +=, -= and .= */ di = NULL; if (get_var_tv(lp->ll_name, (int)STRLEN(lp->ll_name), &tv, &di, TRUE, FALSE) == OK) { if ((di == NULL || (!var_check_ro(di->di_flags, lp->ll_name, FALSE) && !tv_check_lock(di->di_tv.v_lock, lp->ll_name, FALSE))) && tv_op(&tv, rettv, op) == OK) set_var(lp->ll_name, &tv, FALSE); clear_tv(&tv); } } else set_var(lp->ll_name, rettv, copy); *endp = cc; } } else if (tv_check_lock(lp->ll_newkey == NULL ? lp->ll_tv->v_lock : lp->ll_tv->vval.v_dict->dv_lock, lp->ll_name, FALSE)) ; else if (lp->ll_range) { listitem_T *ll_li = lp->ll_li; int ll_n1 = lp->ll_n1; /* * Check whether any of the list items is locked */ for (ri = rettv->vval.v_list->lv_first; ri != NULL && ll_li != NULL; ) { if (tv_check_lock(ll_li->li_tv.v_lock, lp->ll_name, FALSE)) return; ri = ri->li_next; if (ri == NULL || (!lp->ll_empty2 && lp->ll_n2 == ll_n1)) break; ll_li = ll_li->li_next; ++ll_n1; } /* * Assign the List values to the list items. */ for (ri = rettv->vval.v_list->lv_first; ri != NULL; ) { if (op != NULL && *op != '=') tv_op(&lp->ll_li->li_tv, &ri->li_tv, op); else { clear_tv(&lp->ll_li->li_tv); copy_tv(&ri->li_tv, &lp->ll_li->li_tv); } ri = ri->li_next; if (ri == NULL || (!lp->ll_empty2 && lp->ll_n2 == lp->ll_n1)) break; if (lp->ll_li->li_next == NULL) { /* Need to add an empty item. */ if (list_append_number(lp->ll_list, 0) == FAIL) { ri = NULL; break; } } lp->ll_li = lp->ll_li->li_next; ++lp->ll_n1; } if (ri != NULL) EMSG(_("E710: List value has more items than target")); else if (lp->ll_empty2 ? (lp->ll_li != NULL && lp->ll_li->li_next != NULL) : lp->ll_n1 != lp->ll_n2) EMSG(_("E711: List value has not enough items")); } else { /* * Assign to a List or Dictionary item. */ if (lp->ll_newkey != NULL) { if (op != NULL && *op != '=') { EMSG2(_(e_letwrong), op); return; } /* Need to add an item to the Dictionary. */ di = dictitem_alloc(lp->ll_newkey); if (di == NULL) return; if (dict_add(lp->ll_tv->vval.v_dict, di) == FAIL) { vim_free(di); return; } lp->ll_tv = &di->di_tv; } else if (op != NULL && *op != '=') { tv_op(lp->ll_tv, rettv, op); return; } else clear_tv(lp->ll_tv); /* * Assign the value to the variable or list item. */ if (copy) copy_tv(rettv, lp->ll_tv); else { *lp->ll_tv = *rettv; lp->ll_tv->v_lock = 0; init_tv(rettv); } } } /* * Handle "tv1 += tv2", "tv1 -= tv2" and "tv1 .= tv2" * Returns OK or FAIL. */ static int tv_op(tv1, tv2, op) typval_T *tv1; typval_T *tv2; char_u *op; { long n; char_u numbuf[NUMBUFLEN]; char_u *s; /* Can't do anything with a Funcref, Dict, v:true on the right. */ if (tv2->v_type != VAR_FUNC && tv2->v_type != VAR_DICT && tv2->v_type != VAR_SPECIAL) { switch (tv1->v_type) { case VAR_DICT: case VAR_FUNC: case VAR_SPECIAL: break; case VAR_LIST: if (*op != '+' || tv2->v_type != VAR_LIST) break; /* List += List */ if (tv1->vval.v_list != NULL && tv2->vval.v_list != NULL) list_extend(tv1->vval.v_list, tv2->vval.v_list, NULL); return OK; case VAR_NUMBER: case VAR_STRING: if (tv2->v_type == VAR_LIST) break; if (*op == '+' || *op == '-') { /* nr += nr or nr -= nr*/ n = get_tv_number(tv1); #ifdef FEAT_FLOAT if (tv2->v_type == VAR_FLOAT) { float_T f = n; if (*op == '+') f += tv2->vval.v_float; else f -= tv2->vval.v_float; clear_tv(tv1); tv1->v_type = VAR_FLOAT; tv1->vval.v_float = f; } else #endif { if (*op == '+') n += get_tv_number(tv2); else n -= get_tv_number(tv2); clear_tv(tv1); tv1->v_type = VAR_NUMBER; tv1->vval.v_number = n; } } else { if (tv2->v_type == VAR_FLOAT) break; /* str .= str */ s = get_tv_string(tv1); s = concat_str(s, get_tv_string_buf(tv2, numbuf)); clear_tv(tv1); tv1->v_type = VAR_STRING; tv1->vval.v_string = s; } return OK; #ifdef FEAT_FLOAT case VAR_FLOAT: { float_T f; if (*op == '.' || (tv2->v_type != VAR_FLOAT && tv2->v_type != VAR_NUMBER && tv2->v_type != VAR_STRING)) break; if (tv2->v_type == VAR_FLOAT) f = tv2->vval.v_float; else f = get_tv_number(tv2); if (*op == '+') tv1->vval.v_float += f; else tv1->vval.v_float -= f; } return OK; #endif } } EMSG2(_(e_letwrong), op); return FAIL; } /* * Add a watcher to a list. */ void list_add_watch(l, lw) list_T *l; listwatch_T *lw; { lw->lw_next = l->lv_watch; l->lv_watch = lw; } /* * Remove a watcher from a list. * No warning when it isn't found... */ void list_rem_watch(l, lwrem) list_T *l; listwatch_T *lwrem; { listwatch_T *lw, **lwp; lwp = &l->lv_watch; for (lw = l->lv_watch; lw != NULL; lw = lw->lw_next) { if (lw == lwrem) { *lwp = lw->lw_next; break; } lwp = &lw->lw_next; } } /* * Just before removing an item from a list: advance watchers to the next * item. */ static void list_fix_watch(l, item) list_T *l; listitem_T *item; { listwatch_T *lw; for (lw = l->lv_watch; lw != NULL; lw = lw->lw_next) if (lw->lw_item == item) lw->lw_item = item->li_next; } /* * Evaluate the expression used in a ":for var in expr" command. * "arg" points to "var". * Set "*errp" to TRUE for an error, FALSE otherwise; * Return a pointer that holds the info. Null when there is an error. */ void * eval_for_line(arg, errp, nextcmdp, skip) char_u *arg; int *errp; char_u **nextcmdp; int skip; { forinfo_T *fi; char_u *expr; typval_T tv; list_T *l; *errp = TRUE; /* default: there is an error */ fi = (forinfo_T *)alloc_clear(sizeof(forinfo_T)); if (fi == NULL) return NULL; expr = skip_var_list(arg, &fi->fi_varcount, &fi->fi_semicolon); if (expr == NULL) return fi; expr = skipwhite(expr); if (expr[0] != 'i' || expr[1] != 'n' || !vim_iswhite(expr[2])) { EMSG(_("E690: Missing \"in\" after :for")); return fi; } if (skip) ++emsg_skip; if (eval0(skipwhite(expr + 2), &tv, nextcmdp, !skip) == OK) { *errp = FALSE; if (!skip) { l = tv.vval.v_list; if (tv.v_type != VAR_LIST || l == NULL) { EMSG(_(e_listreq)); clear_tv(&tv); } else { /* No need to increment the refcount, it's already set for the * list being used in "tv". */ fi->fi_list = l; list_add_watch(l, &fi->fi_lw); fi->fi_lw.lw_item = l->lv_first; } } } if (skip) --emsg_skip; return fi; } /* * Use the first item in a ":for" list. Advance to the next. * Assign the values to the variable (list). "arg" points to the first one. * Return TRUE when a valid item was found, FALSE when at end of list or * something wrong. */ int next_for_item(fi_void, arg) void *fi_void; char_u *arg; { forinfo_T *fi = (forinfo_T *)fi_void; int result; listitem_T *item; item = fi->fi_lw.lw_item; if (item == NULL) result = FALSE; else { fi->fi_lw.lw_item = item->li_next; result = (ex_let_vars(arg, &item->li_tv, TRUE, fi->fi_semicolon, fi->fi_varcount, NULL) == OK); } return result; } /* * Free the structure used to store info used by ":for". */ void free_for_info(fi_void) void *fi_void; { forinfo_T *fi = (forinfo_T *)fi_void; if (fi != NULL && fi->fi_list != NULL) { list_rem_watch(fi->fi_list, &fi->fi_lw); list_unref(fi->fi_list); } vim_free(fi); } #if defined(FEAT_CMDL_COMPL) || defined(PROTO) void set_context_for_expression(xp, arg, cmdidx) expand_T *xp; char_u *arg; cmdidx_T cmdidx; { int got_eq = FALSE; int c; char_u *p; if (cmdidx == CMD_let) { xp->xp_context = EXPAND_USER_VARS; if (vim_strpbrk(arg, (char_u *)"\"'+-*/%.=!?~|&$([<>,#") == NULL) { /* ":let var1 var2 ...": find last space. */ for (p = arg + STRLEN(arg); p >= arg; ) { xp->xp_pattern = p; mb_ptr_back(arg, p); if (vim_iswhite(*p)) break; } return; } } else xp->xp_context = cmdidx == CMD_call ? EXPAND_FUNCTIONS : EXPAND_EXPRESSION; while ((xp->xp_pattern = vim_strpbrk(arg, (char_u *)"\"'+-*/%.=!?~|&$([<>,#")) != NULL) { c = *xp->xp_pattern; if (c == '&') { c = xp->xp_pattern[1]; if (c == '&') { ++xp->xp_pattern; xp->xp_context = cmdidx != CMD_let || got_eq ? EXPAND_EXPRESSION : EXPAND_NOTHING; } else if (c != ' ') { xp->xp_context = EXPAND_SETTINGS; if ((c == 'l' || c == 'g') && xp->xp_pattern[2] == ':') xp->xp_pattern += 2; } } else if (c == '$') { /* environment variable */ xp->xp_context = EXPAND_ENV_VARS; } else if (c == '=') { got_eq = TRUE; xp->xp_context = EXPAND_EXPRESSION; } else if ((c == '<' || c == '#') && xp->xp_context == EXPAND_FUNCTIONS && vim_strchr(xp->xp_pattern, '(') == NULL) { /* Function name can start with "<SNR>" and contain '#'. */ break; } else if (cmdidx != CMD_let || got_eq) { if (c == '"') /* string */ { while ((c = *++xp->xp_pattern) != NUL && c != '"') if (c == '\\' && xp->xp_pattern[1] != NUL) ++xp->xp_pattern; xp->xp_context = EXPAND_NOTHING; } else if (c == '\'') /* literal string */ { /* Trick: '' is like stopping and starting a literal string. */ while ((c = *++xp->xp_pattern) != NUL && c != '\'') /* skip */ ; xp->xp_context = EXPAND_NOTHING; } else if (c == '|') { if (xp->xp_pattern[1] == '|') { ++xp->xp_pattern; xp->xp_context = EXPAND_EXPRESSION; } else xp->xp_context = EXPAND_COMMANDS; } else xp->xp_context = EXPAND_EXPRESSION; } else /* Doesn't look like something valid, expand as an expression * anyway. */ xp->xp_context = EXPAND_EXPRESSION; arg = xp->xp_pattern; if (*arg != NUL) while ((c = *++arg) != NUL && (c == ' ' || c == '\t')) /* skip */ ; } xp->xp_pattern = arg; } #endif /* FEAT_CMDL_COMPL */ /* * ":1,25call func(arg1, arg2)" function call. */ void ex_call(eap) exarg_T *eap; { char_u *arg = eap->arg; char_u *startarg; char_u *name; char_u *tofree; int len; typval_T rettv; linenr_T lnum; int doesrange; int failed = FALSE; funcdict_T fudi; if (eap->skip) { /* trans_function_name() doesn't work well when skipping, use eval0() * instead to skip to any following command, e.g. for: * :if 0 | call dict.foo().bar() | endif */ ++emsg_skip; if (eval0(eap->arg, &rettv, &eap->nextcmd, FALSE) != FAIL) clear_tv(&rettv); --emsg_skip; return; } tofree = trans_function_name(&arg, eap->skip, TFN_INT, &fudi); if (fudi.fd_newkey != NULL) { /* Still need to give an error message for missing key. */ EMSG2(_(e_dictkey), fudi.fd_newkey); vim_free(fudi.fd_newkey); } if (tofree == NULL) return; /* Increase refcount on dictionary, it could get deleted when evaluating * the arguments. */ if (fudi.fd_dict != NULL) ++fudi.fd_dict->dv_refcount; /* If it is the name of a variable of type VAR_FUNC use its contents. */ len = (int)STRLEN(tofree); name = deref_func_name(tofree, &len, FALSE); /* Skip white space to allow ":call func ()". Not good, but required for * backward compatibility. */ startarg = skipwhite(arg); rettv.v_type = VAR_UNKNOWN; /* clear_tv() uses this */ if (*startarg != '(') { EMSG2(_("E107: Missing parentheses: %s"), eap->arg); goto end; } /* * When skipping, evaluate the function once, to find the end of the * arguments. * When the function takes a range, this is discovered after the first * call, and the loop is broken. */ if (eap->skip) { ++emsg_skip; lnum = eap->line2; /* do it once, also with an invalid range */ } else lnum = eap->line1; for ( ; lnum <= eap->line2; ++lnum) { if (!eap->skip && eap->addr_count > 0) { curwin->w_cursor.lnum = lnum; curwin->w_cursor.col = 0; #ifdef FEAT_VIRTUALEDIT curwin->w_cursor.coladd = 0; #endif } arg = startarg; if (get_func_tv(name, (int)STRLEN(name), &rettv, &arg, eap->line1, eap->line2, &doesrange, !eap->skip, fudi.fd_dict) == FAIL) { failed = TRUE; break; } /* Handle a function returning a Funcref, Dictionary or List. */ if (handle_subscript(&arg, &rettv, !eap->skip, TRUE) == FAIL) { failed = TRUE; break; } clear_tv(&rettv); if (doesrange || eap->skip) break; /* Stop when immediately aborting on error, or when an interrupt * occurred or an exception was thrown but not caught. * get_func_tv() returned OK, so that the check for trailing * characters below is executed. */ if (aborting()) break; } if (eap->skip) --emsg_skip; if (!failed) { /* Check for trailing illegal characters and a following command. */ if (!ends_excmd(*arg)) { emsg_severe = TRUE; EMSG(_(e_trailing)); } else eap->nextcmd = check_nextcmd(arg); } end: dict_unref(fudi.fd_dict); vim_free(tofree); } /* * ":unlet[!] var1 ... " command. */ void ex_unlet(eap) exarg_T *eap; { ex_unletlock(eap, eap->arg, 0); } /* * ":lockvar" and ":unlockvar" commands */ void ex_lockvar(eap) exarg_T *eap; { char_u *arg = eap->arg; int deep = 2; if (eap->forceit) deep = -1; else if (vim_isdigit(*arg)) { deep = getdigits(&arg); arg = skipwhite(arg); } ex_unletlock(eap, arg, deep); } /* * ":unlet", ":lockvar" and ":unlockvar" are quite similar. */ static void ex_unletlock(eap, argstart, deep) exarg_T *eap; char_u *argstart; int deep; { char_u *arg = argstart; char_u *name_end; int error = FALSE; lval_T lv; do { /* Parse the name and find the end. */ name_end = get_lval(arg, NULL, &lv, TRUE, eap->skip || error, 0, FNE_CHECK_START); if (lv.ll_name == NULL) error = TRUE; /* error but continue parsing */ if (name_end == NULL || (!vim_iswhite(*name_end) && !ends_excmd(*name_end))) { if (name_end != NULL) { emsg_severe = TRUE; EMSG(_(e_trailing)); } if (!(eap->skip || error)) clear_lval(&lv); break; } if (!error && !eap->skip) { if (eap->cmdidx == CMD_unlet) { if (do_unlet_var(&lv, name_end, eap->forceit) == FAIL) error = TRUE; } else { if (do_lock_var(&lv, name_end, deep, eap->cmdidx == CMD_lockvar) == FAIL) error = TRUE; } } if (!eap->skip) clear_lval(&lv); arg = skipwhite(name_end); } while (!ends_excmd(*arg)); eap->nextcmd = check_nextcmd(arg); } static int do_unlet_var(lp, name_end, forceit) lval_T *lp; char_u *name_end; int forceit; { int ret = OK; int cc; if (lp->ll_tv == NULL) { cc = *name_end; *name_end = NUL; /* Normal name or expanded name. */ if (check_changedtick(lp->ll_name)) ret = FAIL; else if (do_unlet(lp->ll_name, forceit) == FAIL) ret = FAIL; *name_end = cc; } else if ((lp->ll_list != NULL && tv_check_lock(lp->ll_list->lv_lock, lp->ll_name, FALSE)) || (lp->ll_dict != NULL && tv_check_lock(lp->ll_dict->dv_lock, lp->ll_name, FALSE))) return FAIL; else if (lp->ll_range) { listitem_T *li; listitem_T *ll_li = lp->ll_li; int ll_n1 = lp->ll_n1; while (ll_li != NULL && (lp->ll_empty2 || lp->ll_n2 >= ll_n1)) { li = ll_li->li_next; if (tv_check_lock(ll_li->li_tv.v_lock, lp->ll_name, FALSE)) return FAIL; ll_li = li; ++ll_n1; } /* Delete a range of List items. */ while (lp->ll_li != NULL && (lp->ll_empty2 || lp->ll_n2 >= lp->ll_n1)) { li = lp->ll_li->li_next; listitem_remove(lp->ll_list, lp->ll_li); lp->ll_li = li; ++lp->ll_n1; } } else { if (lp->ll_list != NULL) /* unlet a List item. */ listitem_remove(lp->ll_list, lp->ll_li); else /* unlet a Dictionary item. */ dictitem_remove(lp->ll_dict, lp->ll_di); } return ret; } /* * "unlet" a variable. Return OK if it existed, FAIL if not. * When "forceit" is TRUE don't complain if the variable doesn't exist. */ int do_unlet(name, forceit) char_u *name; int forceit; { hashtab_T *ht; hashitem_T *hi; char_u *varname; dict_T *d; dictitem_T *di; ht = find_var_ht(name, &varname); if (ht != NULL && *varname != NUL) { if (ht == &globvarht) d = &globvardict; else if (current_funccal != NULL && ht == ¤t_funccal->l_vars.dv_hashtab) d = ¤t_funccal->l_vars; else if (ht == &compat_hashtab) d = &vimvardict; else { di = find_var_in_ht(ht, *name, (char_u *)"", FALSE); d = di == NULL ? NULL : di->di_tv.vval.v_dict; } if (d == NULL) { EMSG2(_(e_intern2), "do_unlet()"); return FAIL; } hi = hash_find(ht, varname); if (!HASHITEM_EMPTY(hi)) { di = HI2DI(hi); if (var_check_fixed(di->di_flags, name, FALSE) || var_check_ro(di->di_flags, name, FALSE) || tv_check_lock(d->dv_lock, name, FALSE)) return FAIL; delete_var(ht, hi); return OK; } } if (forceit) return OK; EMSG2(_("E108: No such variable: \"%s\""), name); return FAIL; } /* * Lock or unlock variable indicated by "lp". * "deep" is the levels to go (-1 for unlimited); * "lock" is TRUE for ":lockvar", FALSE for ":unlockvar". */ static int do_lock_var(lp, name_end, deep, lock) lval_T *lp; char_u *name_end; int deep; int lock; { int ret = OK; int cc; dictitem_T *di; if (deep == 0) /* nothing to do */ return OK; if (lp->ll_tv == NULL) { cc = *name_end; *name_end = NUL; /* Normal name or expanded name. */ if (check_changedtick(lp->ll_name)) ret = FAIL; else { di = find_var(lp->ll_name, NULL, TRUE); if (di == NULL) ret = FAIL; else { if (lock) di->di_flags |= DI_FLAGS_LOCK; else di->di_flags &= ~DI_FLAGS_LOCK; item_lock(&di->di_tv, deep, lock); } } *name_end = cc; } else if (lp->ll_range) { listitem_T *li = lp->ll_li; /* (un)lock a range of List items. */ while (li != NULL && (lp->ll_empty2 || lp->ll_n2 >= lp->ll_n1)) { item_lock(&li->li_tv, deep, lock); li = li->li_next; ++lp->ll_n1; } } else if (lp->ll_list != NULL) /* (un)lock a List item. */ item_lock(&lp->ll_li->li_tv, deep, lock); else /* (un)lock a Dictionary item. */ item_lock(&lp->ll_di->di_tv, deep, lock); return ret; } /* * Lock or unlock an item. "deep" is nr of levels to go. */ static void item_lock(tv, deep, lock) typval_T *tv; int deep; int lock; { static int recurse = 0; list_T *l; listitem_T *li; dict_T *d; hashitem_T *hi; int todo; if (recurse >= DICT_MAXNEST) { EMSG(_("E743: variable nested too deep for (un)lock")); return; } if (deep == 0) return; ++recurse; /* lock/unlock the item itself */ if (lock) tv->v_lock |= VAR_LOCKED; else tv->v_lock &= ~VAR_LOCKED; switch (tv->v_type) { case VAR_LIST: if ((l = tv->vval.v_list) != NULL) { if (lock) l->lv_lock |= VAR_LOCKED; else l->lv_lock &= ~VAR_LOCKED; if (deep < 0 || deep > 1) /* recursive: lock/unlock the items the List contains */ for (li = l->lv_first; li != NULL; li = li->li_next) item_lock(&li->li_tv, deep - 1, lock); } break; case VAR_DICT: if ((d = tv->vval.v_dict) != NULL) { if (lock) d->dv_lock |= VAR_LOCKED; else d->dv_lock &= ~VAR_LOCKED; if (deep < 0 || deep > 1) { /* recursive: lock/unlock the items the List contains */ todo = (int)d->dv_hashtab.ht_used; for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; item_lock(&HI2DI(hi)->di_tv, deep - 1, lock); } } } } } --recurse; } /* * Return TRUE if typeval "tv" is locked: Either that value is locked itself * or it refers to a List or Dictionary that is locked. */ static int tv_islocked(tv) typval_T *tv; { return (tv->v_lock & VAR_LOCKED) || (tv->v_type == VAR_LIST && tv->vval.v_list != NULL && (tv->vval.v_list->lv_lock & VAR_LOCKED)) || (tv->v_type == VAR_DICT && tv->vval.v_dict != NULL && (tv->vval.v_dict->dv_lock & VAR_LOCKED)); } #if (defined(FEAT_MENU) && defined(FEAT_MULTI_LANG)) || defined(PROTO) /* * Delete all "menutrans_" variables. */ void del_menutrans_vars() { hashitem_T *hi; int todo; hash_lock(&globvarht); todo = (int)globvarht.ht_used; for (hi = globvarht.ht_array; todo > 0 && !got_int; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; if (STRNCMP(HI2DI(hi)->di_key, "menutrans_", 10) == 0) delete_var(&globvarht, hi); } } hash_unlock(&globvarht); } #endif #if defined(FEAT_CMDL_COMPL) || defined(PROTO) /* * Local string buffer for the next two functions to store a variable name * with its prefix. Allocated in cat_prefix_varname(), freed later in * get_user_var_name(). */ static char_u *cat_prefix_varname(int prefix, char_u *name); static char_u *varnamebuf = NULL; static int varnamebuflen = 0; /* * Function to concatenate a prefix and a variable name. */ static char_u * cat_prefix_varname(prefix, name) int prefix; char_u *name; { int len; len = (int)STRLEN(name) + 3; if (len > varnamebuflen) { vim_free(varnamebuf); len += 10; /* some additional space */ varnamebuf = alloc(len); if (varnamebuf == NULL) { varnamebuflen = 0; return NULL; } varnamebuflen = len; } *varnamebuf = prefix; varnamebuf[1] = ':'; STRCPY(varnamebuf + 2, name); return varnamebuf; } /* * Function given to ExpandGeneric() to obtain the list of user defined * (global/buffer/window/built-in) variable names. */ char_u * get_user_var_name(xp, idx) expand_T *xp; int idx; { static long_u gdone; static long_u bdone; static long_u wdone; #ifdef FEAT_WINDOWS static long_u tdone; #endif static int vidx; static hashitem_T *hi; hashtab_T *ht; if (idx == 0) { gdone = bdone = wdone = vidx = 0; #ifdef FEAT_WINDOWS tdone = 0; #endif } /* Global variables */ if (gdone < globvarht.ht_used) { if (gdone++ == 0) hi = globvarht.ht_array; else ++hi; while (HASHITEM_EMPTY(hi)) ++hi; if (STRNCMP("g:", xp->xp_pattern, 2) == 0) return cat_prefix_varname('g', hi->hi_key); return hi->hi_key; } /* b: variables */ ht = &curbuf->b_vars->dv_hashtab; if (bdone < ht->ht_used) { if (bdone++ == 0) hi = ht->ht_array; else ++hi; while (HASHITEM_EMPTY(hi)) ++hi; return cat_prefix_varname('b', hi->hi_key); } if (bdone == ht->ht_used) { ++bdone; return (char_u *)"b:changedtick"; } /* w: variables */ ht = &curwin->w_vars->dv_hashtab; if (wdone < ht->ht_used) { if (wdone++ == 0) hi = ht->ht_array; else ++hi; while (HASHITEM_EMPTY(hi)) ++hi; return cat_prefix_varname('w', hi->hi_key); } #ifdef FEAT_WINDOWS /* t: variables */ ht = &curtab->tp_vars->dv_hashtab; if (tdone < ht->ht_used) { if (tdone++ == 0) hi = ht->ht_array; else ++hi; while (HASHITEM_EMPTY(hi)) ++hi; return cat_prefix_varname('t', hi->hi_key); } #endif /* v: variables */ if (vidx < VV_LEN) return cat_prefix_varname('v', (char_u *)vimvars[vidx++].vv_name); vim_free(varnamebuf); varnamebuf = NULL; varnamebuflen = 0; return NULL; } #endif /* FEAT_CMDL_COMPL */ /* * types for expressions. */ typedef enum { TYPE_UNKNOWN = 0 , TYPE_EQUAL /* == */ , TYPE_NEQUAL /* != */ , TYPE_GREATER /* > */ , TYPE_GEQUAL /* >= */ , TYPE_SMALLER /* < */ , TYPE_SEQUAL /* <= */ , TYPE_MATCH /* =~ */ , TYPE_NOMATCH /* !~ */ } exptype_T; /* * The "evaluate" argument: When FALSE, the argument is only parsed but not * executed. The function may return OK, but the rettv will be of type * VAR_UNKNOWN. The function still returns FAIL for a syntax error. */ /* * Handle zero level expression. * This calls eval1() and handles error message and nextcmd. * Put the result in "rettv" when returning OK and "evaluate" is TRUE. * Note: "rettv.v_lock" is not set. * Return OK or FAIL. */ static int eval0(arg, rettv, nextcmd, evaluate) char_u *arg; typval_T *rettv; char_u **nextcmd; int evaluate; { int ret; char_u *p; p = skipwhite(arg); ret = eval1(&p, rettv, evaluate); if (ret == FAIL || !ends_excmd(*p)) { if (ret != FAIL) clear_tv(rettv); /* * Report the invalid expression unless the expression evaluation has * been cancelled due to an aborting error, an interrupt, or an * exception. */ if (!aborting()) EMSG2(_(e_invexpr2), arg); ret = FAIL; } if (nextcmd != NULL) *nextcmd = check_nextcmd(p); return ret; } /* * Handle top level expression: * expr2 ? expr1 : expr1 * * "arg" must point to the first non-white of the expression. * "arg" is advanced to the next non-white after the recognized expression. * * Note: "rettv.v_lock" is not set. * * Return OK or FAIL. */ static int eval1(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { int result; typval_T var2; /* * Get the first variable. */ if (eval2(arg, rettv, evaluate) == FAIL) return FAIL; if ((*arg)[0] == '?') { result = FALSE; if (evaluate) { int error = FALSE; if (get_tv_number_chk(rettv, &error) != 0) result = TRUE; clear_tv(rettv); if (error) return FAIL; } /* * Get the second variable. */ *arg = skipwhite(*arg + 1); if (eval1(arg, rettv, evaluate && result) == FAIL) /* recursive! */ return FAIL; /* * Check for the ":". */ if ((*arg)[0] != ':') { EMSG(_("E109: Missing ':' after '?'")); if (evaluate && result) clear_tv(rettv); return FAIL; } /* * Get the third variable. */ *arg = skipwhite(*arg + 1); if (eval1(arg, &var2, evaluate && !result) == FAIL) /* recursive! */ { if (evaluate && result) clear_tv(rettv); return FAIL; } if (evaluate && !result) *rettv = var2; } return OK; } /* * Handle first level expression: * expr2 || expr2 || expr2 logical OR * * "arg" must point to the first non-white of the expression. * "arg" is advanced to the next non-white after the recognized expression. * * Return OK or FAIL. */ static int eval2(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { typval_T var2; long result; int first; int error = FALSE; /* * Get the first variable. */ if (eval3(arg, rettv, evaluate) == FAIL) return FAIL; /* * Repeat until there is no following "||". */ first = TRUE; result = FALSE; while ((*arg)[0] == '|' && (*arg)[1] == '|') { if (evaluate && first) { if (get_tv_number_chk(rettv, &error) != 0) result = TRUE; clear_tv(rettv); if (error) return FAIL; first = FALSE; } /* * Get the second variable. */ *arg = skipwhite(*arg + 2); if (eval3(arg, &var2, evaluate && !result) == FAIL) return FAIL; /* * Compute the result. */ if (evaluate && !result) { if (get_tv_number_chk(&var2, &error) != 0) result = TRUE; clear_tv(&var2); if (error) return FAIL; } if (evaluate) { rettv->v_type = VAR_NUMBER; rettv->vval.v_number = result; } } return OK; } /* * Handle second level expression: * expr3 && expr3 && expr3 logical AND * * "arg" must point to the first non-white of the expression. * "arg" is advanced to the next non-white after the recognized expression. * * Return OK or FAIL. */ static int eval3(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { typval_T var2; long result; int first; int error = FALSE; /* * Get the first variable. */ if (eval4(arg, rettv, evaluate) == FAIL) return FAIL; /* * Repeat until there is no following "&&". */ first = TRUE; result = TRUE; while ((*arg)[0] == '&' && (*arg)[1] == '&') { if (evaluate && first) { if (get_tv_number_chk(rettv, &error) == 0) result = FALSE; clear_tv(rettv); if (error) return FAIL; first = FALSE; } /* * Get the second variable. */ *arg = skipwhite(*arg + 2); if (eval4(arg, &var2, evaluate && result) == FAIL) return FAIL; /* * Compute the result. */ if (evaluate && result) { if (get_tv_number_chk(&var2, &error) == 0) result = FALSE; clear_tv(&var2); if (error) return FAIL; } if (evaluate) { rettv->v_type = VAR_NUMBER; rettv->vval.v_number = result; } } return OK; } /* * Handle third level expression: * var1 == var2 * var1 =~ var2 * var1 != var2 * var1 !~ var2 * var1 > var2 * var1 >= var2 * var1 < var2 * var1 <= var2 * var1 is var2 * var1 isnot var2 * * "arg" must point to the first non-white of the expression. * "arg" is advanced to the next non-white after the recognized expression. * * Return OK or FAIL. */ static int eval4(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { typval_T var2; char_u *p; int i; exptype_T type = TYPE_UNKNOWN; int type_is = FALSE; /* TRUE for "is" and "isnot" */ int len = 2; long n1, n2; char_u *s1, *s2; char_u buf1[NUMBUFLEN], buf2[NUMBUFLEN]; regmatch_T regmatch; int ic; char_u *save_cpo; /* * Get the first variable. */ if (eval5(arg, rettv, evaluate) == FAIL) return FAIL; p = *arg; switch (p[0]) { case '=': if (p[1] == '=') type = TYPE_EQUAL; else if (p[1] == '~') type = TYPE_MATCH; break; case '!': if (p[1] == '=') type = TYPE_NEQUAL; else if (p[1] == '~') type = TYPE_NOMATCH; break; case '>': if (p[1] != '=') { type = TYPE_GREATER; len = 1; } else type = TYPE_GEQUAL; break; case '<': if (p[1] != '=') { type = TYPE_SMALLER; len = 1; } else type = TYPE_SEQUAL; break; case 'i': if (p[1] == 's') { if (p[2] == 'n' && p[3] == 'o' && p[4] == 't') len = 5; i = p[len]; if (!isalnum(i) && i != '_') { type = len == 2 ? TYPE_EQUAL : TYPE_NEQUAL; type_is = TRUE; } } break; } /* * If there is a comparative operator, use it. */ if (type != TYPE_UNKNOWN) { /* extra question mark appended: ignore case */ if (p[len] == '?') { ic = TRUE; ++len; } /* extra '#' appended: match case */ else if (p[len] == '#') { ic = FALSE; ++len; } /* nothing appended: use 'ignorecase' */ else ic = p_ic; /* * Get the second variable. */ *arg = skipwhite(p + len); if (eval5(arg, &var2, evaluate) == FAIL) { clear_tv(rettv); return FAIL; } if (evaluate) { if (type_is && rettv->v_type != var2.v_type) { /* For "is" a different type always means FALSE, for "notis" * it means TRUE. */ n1 = (type == TYPE_NEQUAL); } else if (rettv->v_type == VAR_LIST || var2.v_type == VAR_LIST) { if (type_is) { n1 = (rettv->v_type == var2.v_type && rettv->vval.v_list == var2.vval.v_list); if (type == TYPE_NEQUAL) n1 = !n1; } else if (rettv->v_type != var2.v_type || (type != TYPE_EQUAL && type != TYPE_NEQUAL)) { if (rettv->v_type != var2.v_type) EMSG(_("E691: Can only compare List with List")); else EMSG(_("E692: Invalid operation for List")); clear_tv(rettv); clear_tv(&var2); return FAIL; } else { /* Compare two Lists for being equal or unequal. */ n1 = list_equal(rettv->vval.v_list, var2.vval.v_list, ic, FALSE); if (type == TYPE_NEQUAL) n1 = !n1; } } else if (rettv->v_type == VAR_DICT || var2.v_type == VAR_DICT) { if (type_is) { n1 = (rettv->v_type == var2.v_type && rettv->vval.v_dict == var2.vval.v_dict); if (type == TYPE_NEQUAL) n1 = !n1; } else if (rettv->v_type != var2.v_type || (type != TYPE_EQUAL && type != TYPE_NEQUAL)) { if (rettv->v_type != var2.v_type) EMSG(_("E735: Can only compare Dictionary with Dictionary")); else EMSG(_("E736: Invalid operation for Dictionary")); clear_tv(rettv); clear_tv(&var2); return FAIL; } else { /* Compare two Dictionaries for being equal or unequal. */ n1 = dict_equal(rettv->vval.v_dict, var2.vval.v_dict, ic, FALSE); if (type == TYPE_NEQUAL) n1 = !n1; } } else if (rettv->v_type == VAR_FUNC || var2.v_type == VAR_FUNC) { if (rettv->v_type != var2.v_type || (type != TYPE_EQUAL && type != TYPE_NEQUAL)) { if (rettv->v_type != var2.v_type) EMSG(_("E693: Can only compare Funcref with Funcref")); else EMSG(_("E694: Invalid operation for Funcrefs")); clear_tv(rettv); clear_tv(&var2); return FAIL; } else { /* Compare two Funcrefs for being equal or unequal. */ if (rettv->vval.v_string == NULL || var2.vval.v_string == NULL) n1 = FALSE; else n1 = STRCMP(rettv->vval.v_string, var2.vval.v_string) == 0; if (type == TYPE_NEQUAL) n1 = !n1; } } #ifdef FEAT_FLOAT /* * If one of the two variables is a float, compare as a float. * When using "=~" or "!~", always compare as string. */ else if ((rettv->v_type == VAR_FLOAT || var2.v_type == VAR_FLOAT) && type != TYPE_MATCH && type != TYPE_NOMATCH) { float_T f1, f2; if (rettv->v_type == VAR_FLOAT) f1 = rettv->vval.v_float; else f1 = get_tv_number(rettv); if (var2.v_type == VAR_FLOAT) f2 = var2.vval.v_float; else f2 = get_tv_number(&var2); n1 = FALSE; switch (type) { case TYPE_EQUAL: n1 = (f1 == f2); break; case TYPE_NEQUAL: n1 = (f1 != f2); break; case TYPE_GREATER: n1 = (f1 > f2); break; case TYPE_GEQUAL: n1 = (f1 >= f2); break; case TYPE_SMALLER: n1 = (f1 < f2); break; case TYPE_SEQUAL: n1 = (f1 <= f2); break; case TYPE_UNKNOWN: case TYPE_MATCH: case TYPE_NOMATCH: break; /* avoid gcc warning */ } } #endif /* * If one of the two variables is a number, compare as a number. * When using "=~" or "!~", always compare as string. */ else if ((rettv->v_type == VAR_NUMBER || var2.v_type == VAR_NUMBER) && type != TYPE_MATCH && type != TYPE_NOMATCH) { n1 = get_tv_number(rettv); n2 = get_tv_number(&var2); switch (type) { case TYPE_EQUAL: n1 = (n1 == n2); break; case TYPE_NEQUAL: n1 = (n1 != n2); break; case TYPE_GREATER: n1 = (n1 > n2); break; case TYPE_GEQUAL: n1 = (n1 >= n2); break; case TYPE_SMALLER: n1 = (n1 < n2); break; case TYPE_SEQUAL: n1 = (n1 <= n2); break; case TYPE_UNKNOWN: case TYPE_MATCH: case TYPE_NOMATCH: break; /* avoid gcc warning */ } } else { s1 = get_tv_string_buf(rettv, buf1); s2 = get_tv_string_buf(&var2, buf2); if (type != TYPE_MATCH && type != TYPE_NOMATCH) i = ic ? MB_STRICMP(s1, s2) : STRCMP(s1, s2); else i = 0; n1 = FALSE; switch (type) { case TYPE_EQUAL: n1 = (i == 0); break; case TYPE_NEQUAL: n1 = (i != 0); break; case TYPE_GREATER: n1 = (i > 0); break; case TYPE_GEQUAL: n1 = (i >= 0); break; case TYPE_SMALLER: n1 = (i < 0); break; case TYPE_SEQUAL: n1 = (i <= 0); break; case TYPE_MATCH: case TYPE_NOMATCH: /* avoid 'l' flag in 'cpoptions' */ save_cpo = p_cpo; p_cpo = (char_u *)""; regmatch.regprog = vim_regcomp(s2, RE_MAGIC + RE_STRING); regmatch.rm_ic = ic; if (regmatch.regprog != NULL) { n1 = vim_regexec_nl(®match, s1, (colnr_T)0); vim_regfree(regmatch.regprog); if (type == TYPE_NOMATCH) n1 = !n1; } p_cpo = save_cpo; break; case TYPE_UNKNOWN: break; /* avoid gcc warning */ } } clear_tv(rettv); clear_tv(&var2); rettv->v_type = VAR_NUMBER; rettv->vval.v_number = n1; } } return OK; } /* * Handle fourth level expression: * + number addition * - number subtraction * . string concatenation * * "arg" must point to the first non-white of the expression. * "arg" is advanced to the next non-white after the recognized expression. * * Return OK or FAIL. */ static int eval5(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { typval_T var2; typval_T var3; int op; long n1, n2; #ifdef FEAT_FLOAT float_T f1 = 0, f2 = 0; #endif char_u *s1, *s2; char_u buf1[NUMBUFLEN], buf2[NUMBUFLEN]; char_u *p; /* * Get the first variable. */ if (eval6(arg, rettv, evaluate, FALSE) == FAIL) return FAIL; /* * Repeat computing, until no '+', '-' or '.' is following. */ for (;;) { op = **arg; if (op != '+' && op != '-' && op != '.') break; if ((op != '+' || rettv->v_type != VAR_LIST) #ifdef FEAT_FLOAT && (op == '.' || rettv->v_type != VAR_FLOAT) #endif ) { /* For "list + ...", an illegal use of the first operand as * a number cannot be determined before evaluating the 2nd * operand: if this is also a list, all is ok. * For "something . ...", "something - ..." or "non-list + ...", * we know that the first operand needs to be a string or number * without evaluating the 2nd operand. So check before to avoid * side effects after an error. */ if (evaluate && get_tv_string_chk(rettv) == NULL) { clear_tv(rettv); return FAIL; } } /* * Get the second variable. */ *arg = skipwhite(*arg + 1); if (eval6(arg, &var2, evaluate, op == '.') == FAIL) { clear_tv(rettv); return FAIL; } if (evaluate) { /* * Compute the result. */ if (op == '.') { s1 = get_tv_string_buf(rettv, buf1); /* already checked */ s2 = get_tv_string_buf_chk(&var2, buf2); if (s2 == NULL) /* type error ? */ { clear_tv(rettv); clear_tv(&var2); return FAIL; } p = concat_str(s1, s2); clear_tv(rettv); rettv->v_type = VAR_STRING; rettv->vval.v_string = p; } else if (op == '+' && rettv->v_type == VAR_LIST && var2.v_type == VAR_LIST) { /* concatenate Lists */ if (list_concat(rettv->vval.v_list, var2.vval.v_list, &var3) == FAIL) { clear_tv(rettv); clear_tv(&var2); return FAIL; } clear_tv(rettv); *rettv = var3; } else { int error = FALSE; #ifdef FEAT_FLOAT if (rettv->v_type == VAR_FLOAT) { f1 = rettv->vval.v_float; n1 = 0; } else #endif { n1 = get_tv_number_chk(rettv, &error); if (error) { /* This can only happen for "list + non-list". For * "non-list + ..." or "something - ...", we returned * before evaluating the 2nd operand. */ clear_tv(rettv); return FAIL; } #ifdef FEAT_FLOAT if (var2.v_type == VAR_FLOAT) f1 = n1; #endif } #ifdef FEAT_FLOAT if (var2.v_type == VAR_FLOAT) { f2 = var2.vval.v_float; n2 = 0; } else #endif { n2 = get_tv_number_chk(&var2, &error); if (error) { clear_tv(rettv); clear_tv(&var2); return FAIL; } #ifdef FEAT_FLOAT if (rettv->v_type == VAR_FLOAT) f2 = n2; #endif } clear_tv(rettv); #ifdef FEAT_FLOAT /* If there is a float on either side the result is a float. */ if (rettv->v_type == VAR_FLOAT || var2.v_type == VAR_FLOAT) { if (op == '+') f1 = f1 + f2; else f1 = f1 - f2; rettv->v_type = VAR_FLOAT; rettv->vval.v_float = f1; } else #endif { if (op == '+') n1 = n1 + n2; else n1 = n1 - n2; rettv->v_type = VAR_NUMBER; rettv->vval.v_number = n1; } } clear_tv(&var2); } } return OK; } /* * Handle fifth level expression: * * number multiplication * / number division * % number modulo * * "arg" must point to the first non-white of the expression. * "arg" is advanced to the next non-white after the recognized expression. * * Return OK or FAIL. */ static int eval6(arg, rettv, evaluate, want_string) char_u **arg; typval_T *rettv; int evaluate; int want_string; /* after "." operator */ { typval_T var2; int op; long n1, n2; #ifdef FEAT_FLOAT int use_float = FALSE; float_T f1 = 0, f2; #endif int error = FALSE; /* * Get the first variable. */ if (eval7(arg, rettv, evaluate, want_string) == FAIL) return FAIL; /* * Repeat computing, until no '*', '/' or '%' is following. */ for (;;) { op = **arg; if (op != '*' && op != '/' && op != '%') break; if (evaluate) { #ifdef FEAT_FLOAT if (rettv->v_type == VAR_FLOAT) { f1 = rettv->vval.v_float; use_float = TRUE; n1 = 0; } else #endif n1 = get_tv_number_chk(rettv, &error); clear_tv(rettv); if (error) return FAIL; } else n1 = 0; /* * Get the second variable. */ *arg = skipwhite(*arg + 1); if (eval7(arg, &var2, evaluate, FALSE) == FAIL) return FAIL; if (evaluate) { #ifdef FEAT_FLOAT if (var2.v_type == VAR_FLOAT) { if (!use_float) { f1 = n1; use_float = TRUE; } f2 = var2.vval.v_float; n2 = 0; } else #endif { n2 = get_tv_number_chk(&var2, &error); clear_tv(&var2); if (error) return FAIL; #ifdef FEAT_FLOAT if (use_float) f2 = n2; #endif } /* * Compute the result. * When either side is a float the result is a float. */ #ifdef FEAT_FLOAT if (use_float) { if (op == '*') f1 = f1 * f2; else if (op == '/') { # ifdef VMS /* VMS crashes on divide by zero, work around it */ if (f2 == 0.0) { if (f1 == 0) f1 = -1 * __F_FLT_MAX - 1L; /* similar to NaN */ else if (f1 < 0) f1 = -1 * __F_FLT_MAX; else f1 = __F_FLT_MAX; } else f1 = f1 / f2; # else /* We rely on the floating point library to handle divide * by zero to result in "inf" and not a crash. */ f1 = f1 / f2; # endif } else { EMSG(_("E804: Cannot use '%' with Float")); return FAIL; } rettv->v_type = VAR_FLOAT; rettv->vval.v_float = f1; } else #endif { if (op == '*') n1 = n1 * n2; else if (op == '/') { if (n2 == 0) /* give an error message? */ { if (n1 == 0) n1 = -0x7fffffffL - 1L; /* similar to NaN */ else if (n1 < 0) n1 = -0x7fffffffL; else n1 = 0x7fffffffL; } else n1 = n1 / n2; } else { if (n2 == 0) /* give an error message? */ n1 = 0; else n1 = n1 % n2; } rettv->v_type = VAR_NUMBER; rettv->vval.v_number = n1; } } } return OK; } /* * Handle sixth level expression: * number number constant * "string" string constant * 'string' literal string constant * &option-name option value * @r register contents * identifier variable value * function() function call * $VAR environment variable * (expression) nested expression * [expr, expr] List * {key: val, key: val} Dictionary * * Also handle: * ! in front logical NOT * - in front unary minus * + in front unary plus (ignored) * trailing [] subscript in String or List * trailing .name entry in Dictionary * * "arg" must point to the first non-white of the expression. * "arg" is advanced to the next non-white after the recognized expression. * * Return OK or FAIL. */ static int eval7(arg, rettv, evaluate, want_string) char_u **arg; typval_T *rettv; int evaluate; int want_string UNUSED; /* after "." operator */ { long n; int len; char_u *s; char_u *start_leader, *end_leader; int ret = OK; char_u *alias; /* * Initialise variable so that clear_tv() can't mistake this for a * string and free a string that isn't there. */ rettv->v_type = VAR_UNKNOWN; /* * Skip '!' and '-' characters. They are handled later. */ start_leader = *arg; while (**arg == '!' || **arg == '-' || **arg == '+') *arg = skipwhite(*arg + 1); end_leader = *arg; switch (**arg) { /* * Number constant. */ case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': { #ifdef FEAT_FLOAT char_u *p = skipdigits(*arg + 1); int get_float = FALSE; /* We accept a float when the format matches * "[0-9]\+\.[0-9]\+\([eE][+-]\?[0-9]\+\)\?". This is very * strict to avoid backwards compatibility problems. * Don't look for a float after the "." operator, so that * ":let vers = 1.2.3" doesn't fail. */ if (!want_string && p[0] == '.' && vim_isdigit(p[1])) { get_float = TRUE; p = skipdigits(p + 2); if (*p == 'e' || *p == 'E') { ++p; if (*p == '-' || *p == '+') ++p; if (!vim_isdigit(*p)) get_float = FALSE; else p = skipdigits(p + 1); } if (ASCII_ISALPHA(*p) || *p == '.') get_float = FALSE; } if (get_float) { float_T f; *arg += string2float(*arg, &f); if (evaluate) { rettv->v_type = VAR_FLOAT; rettv->vval.v_float = f; } } else #endif { vim_str2nr(*arg, NULL, &len, STR2NR_ALL, &n, NULL, 0); *arg += len; if (evaluate) { rettv->v_type = VAR_NUMBER; rettv->vval.v_number = n; } } break; } /* * String constant: "string". */ case '"': ret = get_string_tv(arg, rettv, evaluate); break; /* * Literal string constant: 'str''ing'. */ case '\'': ret = get_lit_string_tv(arg, rettv, evaluate); break; /* * List: [expr, expr] */ case '[': ret = get_list_tv(arg, rettv, evaluate); break; /* * Dictionary: {key: val, key: val} */ case '{': ret = get_dict_tv(arg, rettv, evaluate); break; /* * Option value: &name */ case '&': ret = get_option_tv(arg, rettv, evaluate); break; /* * Environment variable: $VAR. */ case '$': ret = get_env_tv(arg, rettv, evaluate); break; /* * Register contents: @r. */ case '@': ++*arg; if (evaluate) { rettv->v_type = VAR_STRING; rettv->vval.v_string = get_reg_contents(**arg, GREG_EXPR_SRC); } if (**arg != NUL) ++*arg; break; /* * nested expression: (expression). */ case '(': *arg = skipwhite(*arg + 1); ret = eval1(arg, rettv, evaluate); /* recursive! */ if (**arg == ')') ++*arg; else if (ret == OK) { EMSG(_("E110: Missing ')'")); clear_tv(rettv); ret = FAIL; } break; default: ret = NOTDONE; break; } if (ret == NOTDONE) { /* * Must be a variable or function name. * Can also be a curly-braces kind of name: {expr}. */ s = *arg; len = get_name_len(arg, &alias, evaluate, TRUE); if (alias != NULL) s = alias; if (len <= 0) ret = FAIL; else { if (**arg == '(') /* recursive! */ { /* If "s" is the name of a variable of type VAR_FUNC * use its contents. */ s = deref_func_name(s, &len, !evaluate); /* Invoke the function. */ ret = get_func_tv(s, len, rettv, arg, curwin->w_cursor.lnum, curwin->w_cursor.lnum, &len, evaluate, NULL); /* If evaluate is FALSE rettv->v_type was not set in * get_func_tv, but it's needed in handle_subscript() to parse * what follows. So set it here. */ if (rettv->v_type == VAR_UNKNOWN && !evaluate && **arg == '(') { rettv->vval.v_string = vim_strsave((char_u *)""); rettv->v_type = VAR_FUNC; } /* Stop the expression evaluation when immediately * aborting on error, or when an interrupt occurred or * an exception was thrown but not caught. */ if (aborting()) { if (ret == OK) clear_tv(rettv); ret = FAIL; } } else if (evaluate) ret = get_var_tv(s, len, rettv, NULL, TRUE, FALSE); else ret = OK; } vim_free(alias); } *arg = skipwhite(*arg); /* Handle following '[', '(' and '.' for expr[expr], expr.name, * expr(expr). */ if (ret == OK) ret = handle_subscript(arg, rettv, evaluate, TRUE); /* * Apply logical NOT and unary '-', from right to left, ignore '+'. */ if (ret == OK && evaluate && end_leader > start_leader) { int error = FALSE; int val = 0; #ifdef FEAT_FLOAT float_T f = 0.0; if (rettv->v_type == VAR_FLOAT) f = rettv->vval.v_float; else #endif val = get_tv_number_chk(rettv, &error); if (error) { clear_tv(rettv); ret = FAIL; } else { while (end_leader > start_leader) { --end_leader; if (*end_leader == '!') { #ifdef FEAT_FLOAT if (rettv->v_type == VAR_FLOAT) f = !f; else #endif val = !val; } else if (*end_leader == '-') { #ifdef FEAT_FLOAT if (rettv->v_type == VAR_FLOAT) f = -f; else #endif val = -val; } } #ifdef FEAT_FLOAT if (rettv->v_type == VAR_FLOAT) { clear_tv(rettv); rettv->vval.v_float = f; } else #endif { clear_tv(rettv); rettv->v_type = VAR_NUMBER; rettv->vval.v_number = val; } } } return ret; } /* * Evaluate an "[expr]" or "[expr:expr]" index. Also "dict.key". * "*arg" points to the '[' or '.'. * Returns FAIL or OK. "*arg" is advanced to after the ']'. */ static int eval_index(arg, rettv, evaluate, verbose) char_u **arg; typval_T *rettv; int evaluate; int verbose; /* give error messages */ { int empty1 = FALSE, empty2 = FALSE; typval_T var1, var2; long n1, n2 = 0; long len = -1; int range = FALSE; char_u *s; char_u *key = NULL; if (rettv->v_type == VAR_FUNC) { if (verbose) EMSG(_("E695: Cannot index a Funcref")); return FAIL; } #ifdef FEAT_FLOAT else if (rettv->v_type == VAR_FLOAT) { if (verbose) EMSG(_(e_float_as_string)); return FAIL; } #endif else if (rettv->v_type == VAR_SPECIAL) { return FAIL; } init_tv(&var1); init_tv(&var2); if (**arg == '.') { /* * dict.name */ key = *arg + 1; for (len = 0; ASCII_ISALNUM(key[len]) || key[len] == '_'; ++len) ; if (len == 0) return FAIL; *arg = skipwhite(key + len); } else { /* * something[idx] * * Get the (first) variable from inside the []. */ *arg = skipwhite(*arg + 1); if (**arg == ':') empty1 = TRUE; else if (eval1(arg, &var1, evaluate) == FAIL) /* recursive! */ return FAIL; else if (evaluate && get_tv_string_chk(&var1) == NULL) { /* not a number or string */ clear_tv(&var1); return FAIL; } /* * Get the second variable from inside the [:]. */ if (**arg == ':') { range = TRUE; *arg = skipwhite(*arg + 1); if (**arg == ']') empty2 = TRUE; else if (eval1(arg, &var2, evaluate) == FAIL) /* recursive! */ { if (!empty1) clear_tv(&var1); return FAIL; } else if (evaluate && get_tv_string_chk(&var2) == NULL) { /* not a number or string */ if (!empty1) clear_tv(&var1); clear_tv(&var2); return FAIL; } } /* Check for the ']'. */ if (**arg != ']') { if (verbose) EMSG(_(e_missbrac)); clear_tv(&var1); if (range) clear_tv(&var2); return FAIL; } *arg = skipwhite(*arg + 1); /* skip the ']' */ } if (evaluate) { n1 = 0; if (!empty1 && rettv->v_type != VAR_DICT) { n1 = get_tv_number(&var1); clear_tv(&var1); } if (range) { if (empty2) n2 = -1; else { n2 = get_tv_number(&var2); clear_tv(&var2); } } switch (rettv->v_type) { case VAR_NUMBER: case VAR_STRING: s = get_tv_string(rettv); len = (long)STRLEN(s); if (range) { /* The resulting variable is a substring. If the indexes * are out of range the result is empty. */ if (n1 < 0) { n1 = len + n1; if (n1 < 0) n1 = 0; } if (n2 < 0) n2 = len + n2; else if (n2 >= len) n2 = len; if (n1 >= len || n2 < 0 || n1 > n2) s = NULL; else s = vim_strnsave(s + n1, (int)(n2 - n1 + 1)); } else { /* The resulting variable is a string of a single * character. If the index is too big or negative the * result is empty. */ if (n1 >= len || n1 < 0) s = NULL; else s = vim_strnsave(s + n1, 1); } clear_tv(rettv); rettv->v_type = VAR_STRING; rettv->vval.v_string = s; break; case VAR_LIST: len = list_len(rettv->vval.v_list); if (n1 < 0) n1 = len + n1; if (!empty1 && (n1 < 0 || n1 >= len)) { /* For a range we allow invalid values and return an empty * list. A list index out of range is an error. */ if (!range) { if (verbose) EMSGN(_(e_listidx), n1); return FAIL; } n1 = len; } if (range) { list_T *l; listitem_T *item; if (n2 < 0) n2 = len + n2; else if (n2 >= len) n2 = len - 1; if (!empty2 && (n2 < 0 || n2 + 1 < n1)) n2 = -1; l = list_alloc(); if (l == NULL) return FAIL; for (item = list_find(rettv->vval.v_list, n1); n1 <= n2; ++n1) { if (list_append_tv(l, &item->li_tv) == FAIL) { list_free(l, TRUE); return FAIL; } item = item->li_next; } clear_tv(rettv); rettv->v_type = VAR_LIST; rettv->vval.v_list = l; ++l->lv_refcount; } else { copy_tv(&list_find(rettv->vval.v_list, n1)->li_tv, &var1); clear_tv(rettv); *rettv = var1; } break; case VAR_DICT: if (range) { if (verbose) EMSG(_(e_dictrange)); if (len == -1) clear_tv(&var1); return FAIL; } { dictitem_T *item; if (len == -1) { key = get_tv_string(&var1); if (*key == NUL) { if (verbose) EMSG(_(e_emptykey)); clear_tv(&var1); return FAIL; } } item = dict_find(rettv->vval.v_dict, key, (int)len); if (item == NULL && verbose) EMSG2(_(e_dictkey), key); if (len == -1) clear_tv(&var1); if (item == NULL) return FAIL; copy_tv(&item->di_tv, &var1); clear_tv(rettv); *rettv = var1; } break; } } return OK; } /* * Get an option value. * "arg" points to the '&' or '+' before the option name. * "arg" is advanced to character after the option name. * Return OK or FAIL. */ static int get_option_tv(arg, rettv, evaluate) char_u **arg; typval_T *rettv; /* when NULL, only check if option exists */ int evaluate; { char_u *option_end; long numval; char_u *stringval; int opt_type; int c; int working = (**arg == '+'); /* has("+option") */ int ret = OK; int opt_flags; /* * Isolate the option name and find its value. */ option_end = find_option_end(arg, &opt_flags); if (option_end == NULL) { if (rettv != NULL) EMSG2(_("E112: Option name missing: %s"), *arg); return FAIL; } if (!evaluate) { *arg = option_end; return OK; } c = *option_end; *option_end = NUL; opt_type = get_option_value(*arg, &numval, rettv == NULL ? NULL : &stringval, opt_flags); if (opt_type == -3) /* invalid name */ { if (rettv != NULL) EMSG2(_("E113: Unknown option: %s"), *arg); ret = FAIL; } else if (rettv != NULL) { if (opt_type == -2) /* hidden string option */ { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; } else if (opt_type == -1) /* hidden number option */ { rettv->v_type = VAR_NUMBER; rettv->vval.v_number = 0; } else if (opt_type == 1) /* number option */ { rettv->v_type = VAR_NUMBER; rettv->vval.v_number = numval; } else /* string option */ { rettv->v_type = VAR_STRING; rettv->vval.v_string = stringval; } } else if (working && (opt_type == -2 || opt_type == -1)) ret = FAIL; *option_end = c; /* put back for error messages */ *arg = option_end; return ret; } /* * Allocate a variable for a string constant. * Return OK or FAIL. */ static int get_string_tv(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { char_u *p; char_u *name; int extra = 0; /* * Find the end of the string, skipping backslashed characters. */ for (p = *arg + 1; *p != NUL && *p != '"'; mb_ptr_adv(p)) { if (*p == '\\' && p[1] != NUL) { ++p; /* A "\<x>" form occupies at least 4 characters, and produces up * to 6 characters: reserve space for 2 extra */ if (*p == '<') extra += 2; } } if (*p != '"') { EMSG2(_("E114: Missing quote: %s"), *arg); return FAIL; } /* If only parsing, set *arg and return here */ if (!evaluate) { *arg = p + 1; return OK; } /* * Copy the string into allocated memory, handling backslashed * characters. */ name = alloc((unsigned)(p - *arg + extra)); if (name == NULL) return FAIL; rettv->v_type = VAR_STRING; rettv->vval.v_string = name; for (p = *arg + 1; *p != NUL && *p != '"'; ) { if (*p == '\\') { switch (*++p) { case 'b': *name++ = BS; ++p; break; case 'e': *name++ = ESC; ++p; break; case 'f': *name++ = FF; ++p; break; case 'n': *name++ = NL; ++p; break; case 'r': *name++ = CAR; ++p; break; case 't': *name++ = TAB; ++p; break; case 'X': /* hex: "\x1", "\x12" */ case 'x': case 'u': /* Unicode: "\u0023" */ case 'U': if (vim_isxdigit(p[1])) { int n, nr; int c = toupper(*p); if (c == 'X') n = 2; else if (*p == 'u') n = 4; else n = 8; nr = 0; while (--n >= 0 && vim_isxdigit(p[1])) { ++p; nr = (nr << 4) + hex2nr(*p); } ++p; #ifdef FEAT_MBYTE /* For "\u" store the number according to * 'encoding'. */ if (c != 'X') name += (*mb_char2bytes)(nr, name); else #endif *name++ = nr; } break; /* octal: "\1", "\12", "\123" */ case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': *name = *p++ - '0'; if (*p >= '0' && *p <= '7') { *name = (*name << 3) + *p++ - '0'; if (*p >= '0' && *p <= '7') *name = (*name << 3) + *p++ - '0'; } ++name; break; /* Special key, e.g.: "\<C-W>" */ case '<': extra = trans_special(&p, name, TRUE); if (extra != 0) { name += extra; break; } /* FALLTHROUGH */ default: MB_COPY_CHAR(p, name); break; } } else MB_COPY_CHAR(p, name); } *name = NUL; *arg = p + 1; return OK; } /* * Allocate a variable for a 'str''ing' constant. * Return OK or FAIL. */ static int get_lit_string_tv(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { char_u *p; char_u *str; int reduce = 0; /* * Find the end of the string, skipping ''. */ for (p = *arg + 1; *p != NUL; mb_ptr_adv(p)) { if (*p == '\'') { if (p[1] != '\'') break; ++reduce; ++p; } } if (*p != '\'') { EMSG2(_("E115: Missing quote: %s"), *arg); return FAIL; } /* If only parsing return after setting "*arg" */ if (!evaluate) { *arg = p + 1; return OK; } /* * Copy the string into allocated memory, handling '' to ' reduction. */ str = alloc((unsigned)((p - *arg) - reduce)); if (str == NULL) return FAIL; rettv->v_type = VAR_STRING; rettv->vval.v_string = str; for (p = *arg + 1; *p != NUL; ) { if (*p == '\'') { if (p[1] != '\'') break; ++p; } MB_COPY_CHAR(p, str); } *str = NUL; *arg = p + 1; return OK; } /* * Allocate a variable for a List and fill it from "*arg". * Return OK or FAIL. */ static int get_list_tv(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { list_T *l = NULL; typval_T tv; listitem_T *item; if (evaluate) { l = list_alloc(); if (l == NULL) return FAIL; } *arg = skipwhite(*arg + 1); while (**arg != ']' && **arg != NUL) { if (eval1(arg, &tv, evaluate) == FAIL) /* recursive! */ goto failret; if (evaluate) { item = listitem_alloc(); if (item != NULL) { item->li_tv = tv; item->li_tv.v_lock = 0; list_append(l, item); } else clear_tv(&tv); } if (**arg == ']') break; if (**arg != ',') { EMSG2(_("E696: Missing comma in List: %s"), *arg); goto failret; } *arg = skipwhite(*arg + 1); } if (**arg != ']') { EMSG2(_("E697: Missing end of List ']': %s"), *arg); failret: if (evaluate) list_free(l, TRUE); return FAIL; } *arg = skipwhite(*arg + 1); if (evaluate) { rettv->v_type = VAR_LIST; rettv->vval.v_list = l; ++l->lv_refcount; } return OK; } /* * Allocate an empty header for a list. * Caller should take care of the reference count. */ list_T * list_alloc() { list_T *l; l = (list_T *)alloc_clear(sizeof(list_T)); if (l != NULL) { /* Prepend the list to the list of lists for garbage collection. */ if (first_list != NULL) first_list->lv_used_prev = l; l->lv_used_prev = NULL; l->lv_used_next = first_list; first_list = l; } return l; } /* * Allocate an empty list for a return value. * Returns OK or FAIL. */ int rettv_list_alloc(rettv) typval_T *rettv; { list_T *l = list_alloc(); if (l == NULL) return FAIL; rettv->vval.v_list = l; rettv->v_type = VAR_LIST; ++l->lv_refcount; return OK; } /* * Unreference a list: decrement the reference count and free it when it * becomes zero. */ void list_unref(l) list_T *l; { if (l != NULL && --l->lv_refcount <= 0) list_free(l, TRUE); } /* * Free a list, including all non-container items it points to. * Ignores the reference count. */ void list_free(l, recurse) list_T *l; int recurse; /* Free Lists and Dictionaries recursively. */ { listitem_T *item; /* Remove the list from the list of lists for garbage collection. */ if (l->lv_used_prev == NULL) first_list = l->lv_used_next; else l->lv_used_prev->lv_used_next = l->lv_used_next; if (l->lv_used_next != NULL) l->lv_used_next->lv_used_prev = l->lv_used_prev; for (item = l->lv_first; item != NULL; item = l->lv_first) { /* Remove the item before deleting it. */ l->lv_first = item->li_next; if (recurse || (item->li_tv.v_type != VAR_LIST && item->li_tv.v_type != VAR_DICT)) clear_tv(&item->li_tv); vim_free(item); } vim_free(l); } /* * Allocate a list item. * It is not initialized, don't forget to set v_lock. */ listitem_T * listitem_alloc() { return (listitem_T *)alloc(sizeof(listitem_T)); } /* * Free a list item. Also clears the value. Does not notify watchers. */ void listitem_free(item) listitem_T *item; { clear_tv(&item->li_tv); vim_free(item); } /* * Remove a list item from a List and free it. Also clears the value. */ void listitem_remove(l, item) list_T *l; listitem_T *item; { vimlist_remove(l, item, item); listitem_free(item); } /* * Get the number of items in a list. */ static long list_len(l) list_T *l; { if (l == NULL) return 0L; return l->lv_len; } /* * Return TRUE when two lists have exactly the same values. */ static int list_equal(l1, l2, ic, recursive) list_T *l1; list_T *l2; int ic; /* ignore case for strings */ int recursive; /* TRUE when used recursively */ { listitem_T *item1, *item2; if (l1 == NULL || l2 == NULL) return FALSE; if (l1 == l2) return TRUE; if (list_len(l1) != list_len(l2)) return FALSE; for (item1 = l1->lv_first, item2 = l2->lv_first; item1 != NULL && item2 != NULL; item1 = item1->li_next, item2 = item2->li_next) if (!tv_equal(&item1->li_tv, &item2->li_tv, ic, recursive)) return FALSE; return item1 == NULL && item2 == NULL; } /* * Return the dictitem that an entry in a hashtable points to. */ dictitem_T * dict_lookup(hi) hashitem_T *hi; { return HI2DI(hi); } /* * Return TRUE when two dictionaries have exactly the same key/values. */ static int dict_equal(d1, d2, ic, recursive) dict_T *d1; dict_T *d2; int ic; /* ignore case for strings */ int recursive; /* TRUE when used recursively */ { hashitem_T *hi; dictitem_T *item2; int todo; if (d1 == NULL || d2 == NULL) return FALSE; if (d1 == d2) return TRUE; if (dict_len(d1) != dict_len(d2)) return FALSE; todo = (int)d1->dv_hashtab.ht_used; for (hi = d1->dv_hashtab.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { item2 = dict_find(d2, hi->hi_key, -1); if (item2 == NULL) return FALSE; if (!tv_equal(&HI2DI(hi)->di_tv, &item2->di_tv, ic, recursive)) return FALSE; --todo; } } return TRUE; } static int tv_equal_recurse_limit; /* * Return TRUE if "tv1" and "tv2" have the same value. * Compares the items just like "==" would compare them, but strings and * numbers are different. Floats and numbers are also different. */ static int tv_equal(tv1, tv2, ic, recursive) typval_T *tv1; typval_T *tv2; int ic; /* ignore case */ int recursive; /* TRUE when used recursively */ { char_u buf1[NUMBUFLEN], buf2[NUMBUFLEN]; char_u *s1, *s2; static int recursive_cnt = 0; /* catch recursive loops */ int r; if (tv1->v_type != tv2->v_type) return FALSE; /* Catch lists and dicts that have an endless loop by limiting * recursiveness to a limit. We guess they are equal then. * A fixed limit has the problem of still taking an awful long time. * Reduce the limit every time running into it. That should work fine for * deeply linked structures that are not recursively linked and catch * recursiveness quickly. */ if (!recursive) tv_equal_recurse_limit = 1000; if (recursive_cnt >= tv_equal_recurse_limit) { --tv_equal_recurse_limit; return TRUE; } switch (tv1->v_type) { case VAR_LIST: ++recursive_cnt; r = list_equal(tv1->vval.v_list, tv2->vval.v_list, ic, TRUE); --recursive_cnt; return r; case VAR_DICT: ++recursive_cnt; r = dict_equal(tv1->vval.v_dict, tv2->vval.v_dict, ic, TRUE); --recursive_cnt; return r; case VAR_FUNC: return (tv1->vval.v_string != NULL && tv2->vval.v_string != NULL && STRCMP(tv1->vval.v_string, tv2->vval.v_string) == 0); case VAR_NUMBER: return tv1->vval.v_number == tv2->vval.v_number; #ifdef FEAT_FLOAT case VAR_FLOAT: return tv1->vval.v_float == tv2->vval.v_float; #endif case VAR_STRING: s1 = get_tv_string_buf(tv1, buf1); s2 = get_tv_string_buf(tv2, buf2); return ((ic ? MB_STRICMP(s1, s2) : STRCMP(s1, s2)) == 0); case VAR_SPECIAL: return tv1->vval.v_number == tv2->vval.v_number; } EMSG2(_(e_intern2), "tv_equal()"); return TRUE; } /* * Locate item with index "n" in list "l" and return it. * A negative index is counted from the end; -1 is the last item. * Returns NULL when "n" is out of range. */ listitem_T * list_find(l, n) list_T *l; long n; { listitem_T *item; long idx; if (l == NULL) return NULL; /* Negative index is relative to the end. */ if (n < 0) n = l->lv_len + n; /* Check for index out of range. */ if (n < 0 || n >= l->lv_len) return NULL; /* When there is a cached index may start search from there. */ if (l->lv_idx_item != NULL) { if (n < l->lv_idx / 2) { /* closest to the start of the list */ item = l->lv_first; idx = 0; } else if (n > (l->lv_idx + l->lv_len) / 2) { /* closest to the end of the list */ item = l->lv_last; idx = l->lv_len - 1; } else { /* closest to the cached index */ item = l->lv_idx_item; idx = l->lv_idx; } } else { if (n < l->lv_len / 2) { /* closest to the start of the list */ item = l->lv_first; idx = 0; } else { /* closest to the end of the list */ item = l->lv_last; idx = l->lv_len - 1; } } while (n > idx) { /* search forward */ item = item->li_next; ++idx; } while (n < idx) { /* search backward */ item = item->li_prev; --idx; } /* cache the used index */ l->lv_idx = idx; l->lv_idx_item = item; return item; } /* * Get list item "l[idx]" as a number. */ static long list_find_nr(l, idx, errorp) list_T *l; long idx; int *errorp; /* set to TRUE when something wrong */ { listitem_T *li; li = list_find(l, idx); if (li == NULL) { if (errorp != NULL) *errorp = TRUE; return -1L; } return get_tv_number_chk(&li->li_tv, errorp); } /* * Get list item "l[idx - 1]" as a string. Returns NULL for failure. */ char_u * list_find_str(l, idx) list_T *l; long idx; { listitem_T *li; li = list_find(l, idx - 1); if (li == NULL) { EMSGN(_(e_listidx), idx); return NULL; } return get_tv_string(&li->li_tv); } /* * Locate "item" list "l" and return its index. * Returns -1 when "item" is not in the list. */ static long list_idx_of_item(l, item) list_T *l; listitem_T *item; { long idx = 0; listitem_T *li; if (l == NULL) return -1; idx = 0; for (li = l->lv_first; li != NULL && li != item; li = li->li_next) ++idx; if (li == NULL) return -1; return idx; } /* * Append item "item" to the end of list "l". */ void list_append(l, item) list_T *l; listitem_T *item; { if (l->lv_last == NULL) { /* empty list */ l->lv_first = item; l->lv_last = item; item->li_prev = NULL; } else { l->lv_last->li_next = item; item->li_prev = l->lv_last; l->lv_last = item; } ++l->lv_len; item->li_next = NULL; } /* * Append typval_T "tv" to the end of list "l". * Return FAIL when out of memory. */ int list_append_tv(l, tv) list_T *l; typval_T *tv; { listitem_T *li = listitem_alloc(); if (li == NULL) return FAIL; copy_tv(tv, &li->li_tv); list_append(l, li); return OK; } /* * Add a dictionary to a list. Used by getqflist(). * Return FAIL when out of memory. */ int list_append_dict(list, dict) list_T *list; dict_T *dict; { listitem_T *li = listitem_alloc(); if (li == NULL) return FAIL; li->li_tv.v_type = VAR_DICT; li->li_tv.v_lock = 0; li->li_tv.vval.v_dict = dict; list_append(list, li); ++dict->dv_refcount; return OK; } /* * Make a copy of "str" and append it as an item to list "l". * When "len" >= 0 use "str[len]". * Returns FAIL when out of memory. */ int list_append_string(l, str, len) list_T *l; char_u *str; int len; { listitem_T *li = listitem_alloc(); if (li == NULL) return FAIL; list_append(l, li); li->li_tv.v_type = VAR_STRING; li->li_tv.v_lock = 0; if (str == NULL) li->li_tv.vval.v_string = NULL; else if ((li->li_tv.vval.v_string = (len >= 0 ? vim_strnsave(str, len) : vim_strsave(str))) == NULL) return FAIL; return OK; } /* * Append "n" to list "l". * Returns FAIL when out of memory. */ static int list_append_number(l, n) list_T *l; varnumber_T n; { listitem_T *li; li = listitem_alloc(); if (li == NULL) return FAIL; li->li_tv.v_type = VAR_NUMBER; li->li_tv.v_lock = 0; li->li_tv.vval.v_number = n; list_append(l, li); return OK; } /* * Insert typval_T "tv" in list "l" before "item". * If "item" is NULL append at the end. * Return FAIL when out of memory. */ int list_insert_tv(l, tv, item) list_T *l; typval_T *tv; listitem_T *item; { listitem_T *ni = listitem_alloc(); if (ni == NULL) return FAIL; copy_tv(tv, &ni->li_tv); list_insert(l, ni, item); return OK; } void list_insert(l, ni, item) list_T *l; listitem_T *ni; listitem_T *item; { if (item == NULL) /* Append new item at end of list. */ list_append(l, ni); else { /* Insert new item before existing item. */ ni->li_prev = item->li_prev; ni->li_next = item; if (item->li_prev == NULL) { l->lv_first = ni; ++l->lv_idx; } else { item->li_prev->li_next = ni; l->lv_idx_item = NULL; } item->li_prev = ni; ++l->lv_len; } } /* * Extend "l1" with "l2". * If "bef" is NULL append at the end, otherwise insert before this item. * Returns FAIL when out of memory. */ static int list_extend(l1, l2, bef) list_T *l1; list_T *l2; listitem_T *bef; { listitem_T *item; int todo = l2->lv_len; /* We also quit the loop when we have inserted the original item count of * the list, avoid a hang when we extend a list with itself. */ for (item = l2->lv_first; item != NULL && --todo >= 0; item = item->li_next) if (list_insert_tv(l1, &item->li_tv, bef) == FAIL) return FAIL; return OK; } /* * Concatenate lists "l1" and "l2" into a new list, stored in "tv". * Return FAIL when out of memory. */ static int list_concat(l1, l2, tv) list_T *l1; list_T *l2; typval_T *tv; { list_T *l; if (l1 == NULL || l2 == NULL) return FAIL; /* make a copy of the first list. */ l = list_copy(l1, FALSE, 0); if (l == NULL) return FAIL; tv->v_type = VAR_LIST; tv->vval.v_list = l; /* append all items from the second list */ return list_extend(l, l2, NULL); } /* * Make a copy of list "orig". Shallow if "deep" is FALSE. * The refcount of the new list is set to 1. * See item_copy() for "copyID". * Returns NULL when out of memory. */ static list_T * list_copy(orig, deep, copyID) list_T *orig; int deep; int copyID; { list_T *copy; listitem_T *item; listitem_T *ni; if (orig == NULL) return NULL; copy = list_alloc(); if (copy != NULL) { if (copyID != 0) { /* Do this before adding the items, because one of the items may * refer back to this list. */ orig->lv_copyID = copyID; orig->lv_copylist = copy; } for (item = orig->lv_first; item != NULL && !got_int; item = item->li_next) { ni = listitem_alloc(); if (ni == NULL) break; if (deep) { if (item_copy(&item->li_tv, &ni->li_tv, deep, copyID) == FAIL) { vim_free(ni); break; } } else copy_tv(&item->li_tv, &ni->li_tv); list_append(copy, ni); } ++copy->lv_refcount; if (item != NULL) { list_unref(copy); copy = NULL; } } return copy; } /* * Remove items "item" to "item2" from list "l". * Does not free the listitem or the value! * This used to be called list_remove, but that conflicts with a Sun header * file. */ void vimlist_remove(l, item, item2) list_T *l; listitem_T *item; listitem_T *item2; { listitem_T *ip; /* notify watchers */ for (ip = item; ip != NULL; ip = ip->li_next) { --l->lv_len; list_fix_watch(l, ip); if (ip == item2) break; } if (item2->li_next == NULL) l->lv_last = item->li_prev; else item2->li_next->li_prev = item->li_prev; if (item->li_prev == NULL) l->lv_first = item2->li_next; else item->li_prev->li_next = item2->li_next; l->lv_idx_item = NULL; } /* * Return an allocated string with the string representation of a list. * May return NULL. */ static char_u * list2string(tv, copyID) typval_T *tv; int copyID; { garray_T ga; if (tv->vval.v_list == NULL) return NULL; ga_init2(&ga, (int)sizeof(char), 80); ga_append(&ga, '['); if (list_join(&ga, tv->vval.v_list, (char_u *)", ", FALSE, copyID) == FAIL) { vim_free(ga.ga_data); return NULL; } ga_append(&ga, ']'); ga_append(&ga, NUL); return (char_u *)ga.ga_data; } typedef struct join_S { char_u *s; char_u *tofree; } join_T; static int list_join_inner(gap, l, sep, echo_style, copyID, join_gap) garray_T *gap; /* to store the result in */ list_T *l; char_u *sep; int echo_style; int copyID; garray_T *join_gap; /* to keep each list item string */ { int i; join_T *p; int len; int sumlen = 0; int first = TRUE; char_u *tofree; char_u numbuf[NUMBUFLEN]; listitem_T *item; char_u *s; /* Stringify each item in the list. */ for (item = l->lv_first; item != NULL && !got_int; item = item->li_next) { if (echo_style) s = echo_string(&item->li_tv, &tofree, numbuf, copyID); else s = tv2string(&item->li_tv, &tofree, numbuf, copyID); if (s == NULL) return FAIL; len = (int)STRLEN(s); sumlen += len; (void)ga_grow(join_gap, 1); p = ((join_T *)join_gap->ga_data) + (join_gap->ga_len++); if (tofree != NULL || s != numbuf) { p->s = s; p->tofree = tofree; } else { p->s = vim_strnsave(s, len); p->tofree = p->s; } line_breakcheck(); if (did_echo_string_emsg) /* recursion error, bail out */ break; } /* Allocate result buffer with its total size, avoid re-allocation and * multiple copy operations. Add 2 for a tailing ']' and NUL. */ if (join_gap->ga_len >= 2) sumlen += (int)STRLEN(sep) * (join_gap->ga_len - 1); if (ga_grow(gap, sumlen + 2) == FAIL) return FAIL; for (i = 0; i < join_gap->ga_len && !got_int; ++i) { if (first) first = FALSE; else ga_concat(gap, sep); p = ((join_T *)join_gap->ga_data) + i; if (p->s != NULL) ga_concat(gap, p->s); line_breakcheck(); } return OK; } /* * Join list "l" into a string in "*gap", using separator "sep". * When "echo_style" is TRUE use String as echoed, otherwise as inside a List. * Return FAIL or OK. */ static int list_join(gap, l, sep, echo_style, copyID) garray_T *gap; list_T *l; char_u *sep; int echo_style; int copyID; { garray_T join_ga; int retval; join_T *p; int i; if (l->lv_len < 1) return OK; /* nothing to do */ ga_init2(&join_ga, (int)sizeof(join_T), l->lv_len); retval = list_join_inner(gap, l, sep, echo_style, copyID, &join_ga); /* Dispose each item in join_ga. */ if (join_ga.ga_data != NULL) { p = (join_T *)join_ga.ga_data; for (i = 0; i < join_ga.ga_len; ++i) { vim_free(p->tofree); ++p; } ga_clear(&join_ga); } return retval; } /* * Return the next (unique) copy ID. * Used for serializing nested structures. */ int get_copyID() { current_copyID += COPYID_INC; return current_copyID; } /* * Garbage collection for lists and dictionaries. * * We use reference counts to be able to free most items right away when they * are no longer used. But for composite items it's possible that it becomes * unused while the reference count is > 0: When there is a recursive * reference. Example: * :let l = [1, 2, 3] * :let d = {9: l} * :let l[1] = d * * Since this is quite unusual we handle this with garbage collection: every * once in a while find out which lists and dicts are not referenced from any * variable. * * Here is a good reference text about garbage collection (refers to Python * but it applies to all reference-counting mechanisms): * http://python.ca/nas/python/gc/ */ /* * Do garbage collection for lists and dicts. * Return TRUE if some memory was freed. */ int garbage_collect() { int copyID; int abort = FALSE; buf_T *buf; win_T *wp; int i; funccall_T *fc, **pfc; int did_free = FALSE; int did_free_funccal = FALSE; #ifdef FEAT_WINDOWS tabpage_T *tp; #endif /* Only do this once. */ want_garbage_collect = FALSE; may_garbage_collect = FALSE; garbage_collect_at_exit = FALSE; /* We advance by two because we add one for items referenced through * previous_funccal. */ copyID = get_copyID(); /* * 1. Go through all accessible variables and mark all lists and dicts * with copyID. */ /* Don't free variables in the previous_funccal list unless they are only * referenced through previous_funccal. This must be first, because if * the item is referenced elsewhere the funccal must not be freed. */ for (fc = previous_funccal; fc != NULL; fc = fc->caller) { abort = abort || set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID + 1, NULL); abort = abort || set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID + 1, NULL); } /* script-local variables */ for (i = 1; i <= ga_scripts.ga_len; ++i) abort = abort || set_ref_in_ht(&SCRIPT_VARS(i), copyID, NULL); /* buffer-local variables */ for (buf = firstbuf; buf != NULL; buf = buf->b_next) abort = abort || set_ref_in_item(&buf->b_bufvar.di_tv, copyID, NULL, NULL); /* window-local variables */ FOR_ALL_TAB_WINDOWS(tp, wp) abort = abort || set_ref_in_item(&wp->w_winvar.di_tv, copyID, NULL, NULL); #ifdef FEAT_AUTOCMD if (aucmd_win != NULL) abort = abort || set_ref_in_item(&aucmd_win->w_winvar.di_tv, copyID, NULL, NULL); #endif #ifdef FEAT_WINDOWS /* tabpage-local variables */ for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) abort = abort || set_ref_in_item(&tp->tp_winvar.di_tv, copyID, NULL, NULL); #endif /* global variables */ abort = abort || set_ref_in_ht(&globvarht, copyID, NULL); /* function-local variables */ for (fc = current_funccal; fc != NULL; fc = fc->caller) { abort = abort || set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID, NULL); abort = abort || set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID, NULL); } /* v: vars */ abort = abort || set_ref_in_ht(&vimvarht, copyID, NULL); #ifdef FEAT_LUA abort = abort || set_ref_in_lua(copyID); #endif #ifdef FEAT_PYTHON abort = abort || set_ref_in_python(copyID); #endif #ifdef FEAT_PYTHON3 abort = abort || set_ref_in_python3(copyID); #endif if (!abort) { /* * 2. Free lists and dictionaries that are not referenced. */ did_free = free_unref_items(copyID); /* * 3. Check if any funccal can be freed now. */ for (pfc = &previous_funccal; *pfc != NULL; ) { if (can_free_funccal(*pfc, copyID)) { fc = *pfc; *pfc = fc->caller; free_funccal(fc, TRUE); did_free = TRUE; did_free_funccal = TRUE; } else pfc = &(*pfc)->caller; } if (did_free_funccal) /* When a funccal was freed some more items might be garbage * collected, so run again. */ (void)garbage_collect(); } else if (p_verbose > 0) { verb_msg((char_u *)_("Not enough memory to set references, garbage collection aborted!")); } return did_free; } /* * Free lists and dictionaries that are no longer referenced. */ static int free_unref_items(copyID) int copyID; { dict_T *dd, *dd_next; list_T *ll, *ll_next; int did_free = FALSE; /* * Go through the list of dicts and free items without the copyID. */ for (dd = first_dict; dd != NULL; ) { dd_next = dd->dv_used_next; if ((dd->dv_copyID & COPYID_MASK) != (copyID & COPYID_MASK)) { /* Free the Dictionary and ordinary items it contains, but don't * recurse into Lists and Dictionaries, they will be in the list * of dicts or list of lists. */ dict_free(dd, FALSE); did_free = TRUE; } dd = dd_next; } /* * Go through the list of lists and free items without the copyID. * But don't free a list that has a watcher (used in a for loop), these * are not referenced anywhere. */ for (ll = first_list; ll != NULL; ) { ll_next = ll->lv_used_next; if ((ll->lv_copyID & COPYID_MASK) != (copyID & COPYID_MASK) && ll->lv_watch == NULL) { /* Free the List and ordinary items it contains, but don't recurse * into Lists and Dictionaries, they will be in the list of dicts * or list of lists. */ list_free(ll, FALSE); did_free = TRUE; } ll = ll_next; } return did_free; } /* * Mark all lists and dicts referenced through hashtab "ht" with "copyID". * "list_stack" is used to add lists to be marked. Can be NULL. * * Returns TRUE if setting references failed somehow. */ int set_ref_in_ht(ht, copyID, list_stack) hashtab_T *ht; int copyID; list_stack_T **list_stack; { int todo; int abort = FALSE; hashitem_T *hi; hashtab_T *cur_ht; ht_stack_T *ht_stack = NULL; ht_stack_T *tempitem; cur_ht = ht; for (;;) { if (!abort) { /* Mark each item in the hashtab. If the item contains a hashtab * it is added to ht_stack, if it contains a list it is added to * list_stack. */ todo = (int)cur_ht->ht_used; for (hi = cur_ht->ht_array; todo > 0; ++hi) if (!HASHITEM_EMPTY(hi)) { --todo; abort = abort || set_ref_in_item(&HI2DI(hi)->di_tv, copyID, &ht_stack, list_stack); } } if (ht_stack == NULL) break; /* take an item from the stack */ cur_ht = ht_stack->ht; tempitem = ht_stack; ht_stack = ht_stack->prev; free(tempitem); } return abort; } /* * Mark all lists and dicts referenced through list "l" with "copyID". * "ht_stack" is used to add hashtabs to be marked. Can be NULL. * * Returns TRUE if setting references failed somehow. */ int set_ref_in_list(l, copyID, ht_stack) list_T *l; int copyID; ht_stack_T **ht_stack; { listitem_T *li; int abort = FALSE; list_T *cur_l; list_stack_T *list_stack = NULL; list_stack_T *tempitem; cur_l = l; for (;;) { if (!abort) /* Mark each item in the list. If the item contains a hashtab * it is added to ht_stack, if it contains a list it is added to * list_stack. */ for (li = cur_l->lv_first; !abort && li != NULL; li = li->li_next) abort = abort || set_ref_in_item(&li->li_tv, copyID, ht_stack, &list_stack); if (list_stack == NULL) break; /* take an item from the stack */ cur_l = list_stack->list; tempitem = list_stack; list_stack = list_stack->prev; free(tempitem); } return abort; } /* * Mark all lists and dicts referenced through typval "tv" with "copyID". * "list_stack" is used to add lists to be marked. Can be NULL. * "ht_stack" is used to add hashtabs to be marked. Can be NULL. * * Returns TRUE if setting references failed somehow. */ int set_ref_in_item(tv, copyID, ht_stack, list_stack) typval_T *tv; int copyID; ht_stack_T **ht_stack; list_stack_T **list_stack; { dict_T *dd; list_T *ll; int abort = FALSE; switch (tv->v_type) { case VAR_DICT: dd = tv->vval.v_dict; if (dd != NULL && dd->dv_copyID != copyID) { /* Didn't see this dict yet. */ dd->dv_copyID = copyID; if (ht_stack == NULL) { abort = set_ref_in_ht(&dd->dv_hashtab, copyID, list_stack); } else { ht_stack_T *newitem = (ht_stack_T*)malloc( sizeof(ht_stack_T)); if (newitem == NULL) abort = TRUE; else { newitem->ht = &dd->dv_hashtab; newitem->prev = *ht_stack; *ht_stack = newitem; } } } break; case VAR_LIST: ll = tv->vval.v_list; if (ll != NULL && ll->lv_copyID != copyID) { /* Didn't see this list yet. */ ll->lv_copyID = copyID; if (list_stack == NULL) { abort = set_ref_in_list(ll, copyID, ht_stack); } else { list_stack_T *newitem = (list_stack_T*)malloc( sizeof(list_stack_T)); if (newitem == NULL) abort = TRUE; else { newitem->list = ll; newitem->prev = *list_stack; *list_stack = newitem; } } } break; } return abort; } /* * Allocate an empty header for a dictionary. */ dict_T * dict_alloc() { dict_T *d; d = (dict_T *)alloc(sizeof(dict_T)); if (d != NULL) { /* Add the dict to the list of dicts for garbage collection. */ if (first_dict != NULL) first_dict->dv_used_prev = d; d->dv_used_next = first_dict; d->dv_used_prev = NULL; first_dict = d; hash_init(&d->dv_hashtab); d->dv_lock = 0; d->dv_scope = 0; d->dv_refcount = 0; d->dv_copyID = 0; } return d; } /* * Allocate an empty dict for a return value. * Returns OK or FAIL. */ int rettv_dict_alloc(rettv) typval_T *rettv; { dict_T *d = dict_alloc(); if (d == NULL) return FAIL; rettv->vval.v_dict = d; rettv->v_type = VAR_DICT; ++d->dv_refcount; return OK; } /* * Unreference a Dictionary: decrement the reference count and free it when it * becomes zero. */ void dict_unref(d) dict_T *d; { if (d != NULL && --d->dv_refcount <= 0) dict_free(d, TRUE); } /* * Free a Dictionary, including all non-container items it contains. * Ignores the reference count. */ void dict_free(d, recurse) dict_T *d; int recurse; /* Free Lists and Dictionaries recursively. */ { int todo; hashitem_T *hi; dictitem_T *di; /* Remove the dict from the list of dicts for garbage collection. */ if (d->dv_used_prev == NULL) first_dict = d->dv_used_next; else d->dv_used_prev->dv_used_next = d->dv_used_next; if (d->dv_used_next != NULL) d->dv_used_next->dv_used_prev = d->dv_used_prev; /* Lock the hashtab, we don't want it to resize while freeing items. */ hash_lock(&d->dv_hashtab); todo = (int)d->dv_hashtab.ht_used; for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { /* Remove the item before deleting it, just in case there is * something recursive causing trouble. */ di = HI2DI(hi); hash_remove(&d->dv_hashtab, hi); if (recurse || (di->di_tv.v_type != VAR_LIST && di->di_tv.v_type != VAR_DICT)) clear_tv(&di->di_tv); vim_free(di); --todo; } } hash_clear(&d->dv_hashtab); vim_free(d); } /* * Allocate a Dictionary item. * The "key" is copied to the new item. * Note that the value of the item "di_tv" still needs to be initialized! * Returns NULL when out of memory. */ dictitem_T * dictitem_alloc(key) char_u *key; { dictitem_T *di; di = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T) + STRLEN(key))); if (di != NULL) { STRCPY(di->di_key, key); di->di_flags = DI_FLAGS_ALLOC; } return di; } /* * Make a copy of a Dictionary item. */ static dictitem_T * dictitem_copy(org) dictitem_T *org; { dictitem_T *di; di = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T) + STRLEN(org->di_key))); if (di != NULL) { STRCPY(di->di_key, org->di_key); di->di_flags = DI_FLAGS_ALLOC; copy_tv(&org->di_tv, &di->di_tv); } return di; } /* * Remove item "item" from Dictionary "dict" and free it. */ static void dictitem_remove(dict, item) dict_T *dict; dictitem_T *item; { hashitem_T *hi; hi = hash_find(&dict->dv_hashtab, item->di_key); if (HASHITEM_EMPTY(hi)) EMSG2(_(e_intern2), "dictitem_remove()"); else hash_remove(&dict->dv_hashtab, hi); dictitem_free(item); } /* * Free a dict item. Also clears the value. */ void dictitem_free(item) dictitem_T *item; { clear_tv(&item->di_tv); if (item->di_flags & DI_FLAGS_ALLOC) vim_free(item); } /* * Make a copy of dict "d". Shallow if "deep" is FALSE. * The refcount of the new dict is set to 1. * See item_copy() for "copyID". * Returns NULL when out of memory. */ static dict_T * dict_copy(orig, deep, copyID) dict_T *orig; int deep; int copyID; { dict_T *copy; dictitem_T *di; int todo; hashitem_T *hi; if (orig == NULL) return NULL; copy = dict_alloc(); if (copy != NULL) { if (copyID != 0) { orig->dv_copyID = copyID; orig->dv_copydict = copy; } todo = (int)orig->dv_hashtab.ht_used; for (hi = orig->dv_hashtab.ht_array; todo > 0 && !got_int; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; di = dictitem_alloc(hi->hi_key); if (di == NULL) break; if (deep) { if (item_copy(&HI2DI(hi)->di_tv, &di->di_tv, deep, copyID) == FAIL) { vim_free(di); break; } } else copy_tv(&HI2DI(hi)->di_tv, &di->di_tv); if (dict_add(copy, di) == FAIL) { dictitem_free(di); break; } } } ++copy->dv_refcount; if (todo > 0) { dict_unref(copy); copy = NULL; } } return copy; } /* * Add item "item" to Dictionary "d". * Returns FAIL when out of memory and when key already exists. */ int dict_add(d, item) dict_T *d; dictitem_T *item; { return hash_add(&d->dv_hashtab, item->di_key); } /* * Add a number or string entry to dictionary "d". * When "str" is NULL use number "nr", otherwise use "str". * Returns FAIL when out of memory and when key already exists. */ int dict_add_nr_str(d, key, nr, str) dict_T *d; char *key; long nr; char_u *str; { dictitem_T *item; item = dictitem_alloc((char_u *)key); if (item == NULL) return FAIL; item->di_tv.v_lock = 0; if (str == NULL) { item->di_tv.v_type = VAR_NUMBER; item->di_tv.vval.v_number = nr; } else { item->di_tv.v_type = VAR_STRING; item->di_tv.vval.v_string = vim_strsave(str); } if (dict_add(d, item) == FAIL) { dictitem_free(item); return FAIL; } return OK; } /* * Add a list entry to dictionary "d". * Returns FAIL when out of memory and when key already exists. */ int dict_add_list(d, key, list) dict_T *d; char *key; list_T *list; { dictitem_T *item; item = dictitem_alloc((char_u *)key); if (item == NULL) return FAIL; item->di_tv.v_lock = 0; item->di_tv.v_type = VAR_LIST; item->di_tv.vval.v_list = list; if (dict_add(d, item) == FAIL) { dictitem_free(item); return FAIL; } ++list->lv_refcount; return OK; } /* * Get the number of items in a Dictionary. */ static long dict_len(d) dict_T *d; { if (d == NULL) return 0L; return (long)d->dv_hashtab.ht_used; } /* * Find item "key[len]" in Dictionary "d". * If "len" is negative use strlen(key). * Returns NULL when not found. */ dictitem_T * dict_find(d, key, len) dict_T *d; char_u *key; int len; { #define AKEYLEN 200 char_u buf[AKEYLEN]; char_u *akey; char_u *tofree = NULL; hashitem_T *hi; if (len < 0) akey = key; else if (len >= AKEYLEN) { tofree = akey = vim_strnsave(key, len); if (akey == NULL) return NULL; } else { /* Avoid a malloc/free by using buf[]. */ vim_strncpy(buf, key, len); akey = buf; } hi = hash_find(&d->dv_hashtab, akey); vim_free(tofree); if (HASHITEM_EMPTY(hi)) return NULL; return HI2DI(hi); } /* * Get a string item from a dictionary. * When "save" is TRUE allocate memory for it. * Returns NULL if the entry doesn't exist or out of memory. */ char_u * get_dict_string(d, key, save) dict_T *d; char_u *key; int save; { dictitem_T *di; char_u *s; di = dict_find(d, key, -1); if (di == NULL) return NULL; s = get_tv_string(&di->di_tv); if (save && s != NULL) s = vim_strsave(s); return s; } /* * Get a number item from a dictionary. * Returns 0 if the entry doesn't exist or out of memory. */ long get_dict_number(d, key) dict_T *d; char_u *key; { dictitem_T *di; di = dict_find(d, key, -1); if (di == NULL) return 0; return get_tv_number(&di->di_tv); } /* * Return an allocated string with the string representation of a Dictionary. * May return NULL. */ static char_u * dict2string(tv, copyID) typval_T *tv; int copyID; { garray_T ga; int first = TRUE; char_u *tofree; char_u numbuf[NUMBUFLEN]; hashitem_T *hi; char_u *s; dict_T *d; int todo; if ((d = tv->vval.v_dict) == NULL) return NULL; ga_init2(&ga, (int)sizeof(char), 80); ga_append(&ga, '{'); todo = (int)d->dv_hashtab.ht_used; for (hi = d->dv_hashtab.ht_array; todo > 0 && !got_int; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; if (first) first = FALSE; else ga_concat(&ga, (char_u *)", "); tofree = string_quote(hi->hi_key, FALSE); if (tofree != NULL) { ga_concat(&ga, tofree); vim_free(tofree); } ga_concat(&ga, (char_u *)": "); s = tv2string(&HI2DI(hi)->di_tv, &tofree, numbuf, copyID); if (s != NULL) ga_concat(&ga, s); vim_free(tofree); if (s == NULL || did_echo_string_emsg) break; line_breakcheck(); } } if (todo > 0) { vim_free(ga.ga_data); return NULL; } ga_append(&ga, '}'); ga_append(&ga, NUL); return (char_u *)ga.ga_data; } /* * Allocate a variable for a Dictionary and fill it from "*arg". * Return OK or FAIL. Returns NOTDONE for {expr}. */ static int get_dict_tv(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { dict_T *d = NULL; typval_T tvkey; typval_T tv; char_u *key = NULL; dictitem_T *item; char_u *start = skipwhite(*arg + 1); char_u buf[NUMBUFLEN]; /* * First check if it's not a curly-braces thing: {expr}. * Must do this without evaluating, otherwise a function may be called * twice. Unfortunately this means we need to call eval1() twice for the * first item. * But {} is an empty Dictionary. */ if (*start != '}') { if (eval1(&start, &tv, FALSE) == FAIL) /* recursive! */ return FAIL; if (*start == '}') return NOTDONE; } if (evaluate) { d = dict_alloc(); if (d == NULL) return FAIL; } tvkey.v_type = VAR_UNKNOWN; tv.v_type = VAR_UNKNOWN; *arg = skipwhite(*arg + 1); while (**arg != '}' && **arg != NUL) { if (eval1(arg, &tvkey, evaluate) == FAIL) /* recursive! */ goto failret; if (**arg != ':') { EMSG2(_("E720: Missing colon in Dictionary: %s"), *arg); clear_tv(&tvkey); goto failret; } if (evaluate) { key = get_tv_string_buf_chk(&tvkey, buf); if (key == NULL || *key == NUL) { /* "key" is NULL when get_tv_string_buf_chk() gave an errmsg */ if (key != NULL) EMSG(_(e_emptykey)); clear_tv(&tvkey); goto failret; } } *arg = skipwhite(*arg + 1); if (eval1(arg, &tv, evaluate) == FAIL) /* recursive! */ { if (evaluate) clear_tv(&tvkey); goto failret; } if (evaluate) { item = dict_find(d, key, -1); if (item != NULL) { EMSG2(_("E721: Duplicate key in Dictionary: \"%s\""), key); clear_tv(&tvkey); clear_tv(&tv); goto failret; } item = dictitem_alloc(key); clear_tv(&tvkey); if (item != NULL) { item->di_tv = tv; item->di_tv.v_lock = 0; if (dict_add(d, item) == FAIL) dictitem_free(item); } } if (**arg == '}') break; if (**arg != ',') { EMSG2(_("E722: Missing comma in Dictionary: %s"), *arg); goto failret; } *arg = skipwhite(*arg + 1); } if (**arg != '}') { EMSG2(_("E723: Missing end of Dictionary '}': %s"), *arg); failret: if (evaluate) dict_free(d, TRUE); return FAIL; } *arg = skipwhite(*arg + 1); if (evaluate) { rettv->v_type = VAR_DICT; rettv->vval.v_dict = d; ++d->dv_refcount; } return OK; } static char * get_var_special_name(int nr) { switch (nr) { case VVAL_FALSE: return "v:false"; case VVAL_TRUE: return "v:true"; case VVAL_NONE: return "v:none"; case VVAL_NULL: return "v:null"; } EMSG2(_(e_intern2), "get_var_special_name()"); return "42"; } /* * Return a string with the string representation of a variable. * If the memory is allocated "tofree" is set to it, otherwise NULL. * "numbuf" is used for a number. * Does not put quotes around strings, as ":echo" displays values. * When "copyID" is not NULL replace recursive lists and dicts with "...". * May return NULL. */ static char_u * echo_string(tv, tofree, numbuf, copyID) typval_T *tv; char_u **tofree; char_u *numbuf; int copyID; { static int recurse = 0; char_u *r = NULL; if (recurse >= DICT_MAXNEST) { if (!did_echo_string_emsg) { /* Only give this message once for a recursive call to avoid * flooding the user with errors. And stop iterating over lists * and dicts. */ did_echo_string_emsg = TRUE; EMSG(_("E724: variable nested too deep for displaying")); } *tofree = NULL; return (char_u *)"{E724}"; } ++recurse; switch (tv->v_type) { case VAR_FUNC: *tofree = NULL; r = tv->vval.v_string; break; case VAR_LIST: if (tv->vval.v_list == NULL) { *tofree = NULL; r = NULL; } else if (copyID != 0 && tv->vval.v_list->lv_copyID == copyID) { *tofree = NULL; r = (char_u *)"[...]"; } else { tv->vval.v_list->lv_copyID = copyID; *tofree = list2string(tv, copyID); r = *tofree; } break; case VAR_DICT: if (tv->vval.v_dict == NULL) { *tofree = NULL; r = NULL; } else if (copyID != 0 && tv->vval.v_dict->dv_copyID == copyID) { *tofree = NULL; r = (char_u *)"{...}"; } else { tv->vval.v_dict->dv_copyID = copyID; *tofree = dict2string(tv, copyID); r = *tofree; } break; case VAR_STRING: case VAR_NUMBER: *tofree = NULL; r = get_tv_string_buf(tv, numbuf); break; #ifdef FEAT_FLOAT case VAR_FLOAT: *tofree = NULL; vim_snprintf((char *)numbuf, NUMBUFLEN, "%g", tv->vval.v_float); r = numbuf; break; #endif case VAR_SPECIAL: *tofree = NULL; r = (char_u *)get_var_special_name(tv->vval.v_number); break; default: EMSG2(_(e_intern2), "echo_string()"); *tofree = NULL; } if (--recurse == 0) did_echo_string_emsg = FALSE; return r; } /* * Return a string with the string representation of a variable. * If the memory is allocated "tofree" is set to it, otherwise NULL. * "numbuf" is used for a number. * Puts quotes around strings, so that they can be parsed back by eval(). * May return NULL. */ static char_u * tv2string(tv, tofree, numbuf, copyID) typval_T *tv; char_u **tofree; char_u *numbuf; int copyID; { switch (tv->v_type) { case VAR_FUNC: *tofree = string_quote(tv->vval.v_string, TRUE); return *tofree; case VAR_STRING: *tofree = string_quote(tv->vval.v_string, FALSE); return *tofree; #ifdef FEAT_FLOAT case VAR_FLOAT: *tofree = NULL; vim_snprintf((char *)numbuf, NUMBUFLEN - 1, "%g", tv->vval.v_float); return numbuf; #endif case VAR_NUMBER: case VAR_LIST: case VAR_DICT: case VAR_SPECIAL: break; default: EMSG2(_(e_intern2), "tv2string()"); } return echo_string(tv, tofree, numbuf, copyID); } /* * Return string "str" in ' quotes, doubling ' characters. * If "str" is NULL an empty string is assumed. * If "function" is TRUE make it function('string'). */ static char_u * string_quote(str, function) char_u *str; int function; { unsigned len; char_u *p, *r, *s; len = (function ? 13 : 3); if (str != NULL) { len += (unsigned)STRLEN(str); for (p = str; *p != NUL; mb_ptr_adv(p)) if (*p == '\'') ++len; } s = r = alloc(len); if (r != NULL) { if (function) { STRCPY(r, "function('"); r += 10; } else *r++ = '\''; if (str != NULL) for (p = str; *p != NUL; ) { if (*p == '\'') *r++ = '\''; MB_COPY_CHAR(p, r); } *r++ = '\''; if (function) *r++ = ')'; *r++ = NUL; } return s; } #if defined(FEAT_FLOAT) || defined(PROTO) /* * Convert the string "text" to a floating point number. * This uses strtod(). setlocale(LC_NUMERIC, "C") has been used to make sure * this always uses a decimal point. * Returns the length of the text that was consumed. */ int string2float(text, value) char_u *text; float_T *value; /* result stored here */ { char *s = (char *)text; float_T f; f = strtod(s, &s); *value = f; return (int)((char_u *)s - text); } #endif /* * Get the value of an environment variable. * "arg" is pointing to the '$'. It is advanced to after the name. * If the environment variable was not set, silently assume it is empty. * Return FAIL if the name is invalid. */ static int get_env_tv(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { char_u *string = NULL; int len; int cc; char_u *name; int mustfree = FALSE; ++*arg; name = *arg; len = get_env_len(arg); if (evaluate) { if (len == 0) return FAIL; /* invalid empty name */ cc = name[len]; name[len] = NUL; /* first try vim_getenv(), fast for normal environment vars */ string = vim_getenv(name, &mustfree); if (string != NULL && *string != NUL) { if (!mustfree) string = vim_strsave(string); } else { if (mustfree) vim_free(string); /* next try expanding things like $VIM and ${HOME} */ string = expand_env_save(name - 1); if (string != NULL && *string == '$') { vim_free(string); string = NULL; } } name[len] = cc; rettv->v_type = VAR_STRING; rettv->vval.v_string = string; } return OK; } /* * Array with names and number of arguments of all internal functions * MUST BE KEPT SORTED IN strcmp() ORDER FOR BINARY SEARCH! */ static struct fst { char *f_name; /* function name */ char f_min_argc; /* minimal number of arguments */ char f_max_argc; /* maximal number of arguments */ void (*f_func)(typval_T *args, typval_T *rvar); /* implementation of function */ } functions[] = { #ifdef FEAT_FLOAT {"abs", 1, 1, f_abs}, {"acos", 1, 1, f_acos}, /* WJMc */ #endif {"add", 2, 2, f_add}, {"alloc_fail", 3, 3, f_alloc_fail}, {"and", 2, 2, f_and}, {"append", 2, 2, f_append}, {"argc", 0, 0, f_argc}, {"argidx", 0, 0, f_argidx}, {"arglistid", 0, 2, f_arglistid}, {"argv", 0, 1, f_argv}, #ifdef FEAT_FLOAT {"asin", 1, 1, f_asin}, /* WJMc */ #endif {"assert_equal", 2, 3, f_assert_equal}, {"assert_exception", 1, 2, f_assert_exception}, {"assert_fails", 1, 2, f_assert_fails}, {"assert_false", 1, 2, f_assert_false}, {"assert_true", 1, 2, f_assert_true}, #ifdef FEAT_FLOAT {"atan", 1, 1, f_atan}, {"atan2", 2, 2, f_atan2}, #endif {"browse", 4, 4, f_browse}, {"browsedir", 2, 2, f_browsedir}, {"bufexists", 1, 1, f_bufexists}, {"buffer_exists", 1, 1, f_bufexists}, /* obsolete */ {"buffer_name", 1, 1, f_bufname}, /* obsolete */ {"buffer_number", 1, 1, f_bufnr}, /* obsolete */ {"buflisted", 1, 1, f_buflisted}, {"bufloaded", 1, 1, f_bufloaded}, {"bufname", 1, 1, f_bufname}, {"bufnr", 1, 2, f_bufnr}, {"bufwinnr", 1, 1, f_bufwinnr}, {"byte2line", 1, 1, f_byte2line}, {"byteidx", 2, 2, f_byteidx}, {"byteidxcomp", 2, 2, f_byteidxcomp}, {"call", 2, 3, f_call}, #ifdef FEAT_FLOAT {"ceil", 1, 1, f_ceil}, #endif {"changenr", 0, 0, f_changenr}, {"char2nr", 1, 2, f_char2nr}, {"cindent", 1, 1, f_cindent}, {"clearmatches", 0, 0, f_clearmatches}, {"col", 1, 1, f_col}, #if defined(FEAT_INS_EXPAND) {"complete", 2, 2, f_complete}, {"complete_add", 1, 1, f_complete_add}, {"complete_check", 0, 0, f_complete_check}, #endif {"confirm", 1, 4, f_confirm}, #ifdef FEAT_CHANNEL {"connect", 2, 3, f_connect}, #endif {"copy", 1, 1, f_copy}, #ifdef FEAT_FLOAT {"cos", 1, 1, f_cos}, {"cosh", 1, 1, f_cosh}, #endif {"count", 2, 4, f_count}, {"cscope_connection",0,3, f_cscope_connection}, {"cursor", 1, 3, f_cursor}, {"deepcopy", 1, 2, f_deepcopy}, {"delete", 1, 2, f_delete}, {"did_filetype", 0, 0, f_did_filetype}, {"diff_filler", 1, 1, f_diff_filler}, {"diff_hlID", 2, 2, f_diff_hlID}, #ifdef FEAT_CHANNEL {"disconnect", 1, 1, f_disconnect}, #endif {"empty", 1, 1, f_empty}, {"escape", 2, 2, f_escape}, {"eval", 1, 1, f_eval}, {"eventhandler", 0, 0, f_eventhandler}, {"executable", 1, 1, f_executable}, {"exepath", 1, 1, f_exepath}, {"exists", 1, 1, f_exists}, #ifdef FEAT_FLOAT {"exp", 1, 1, f_exp}, #endif {"expand", 1, 3, f_expand}, {"extend", 2, 3, f_extend}, {"feedkeys", 1, 2, f_feedkeys}, {"file_readable", 1, 1, f_filereadable}, /* obsolete */ {"filereadable", 1, 1, f_filereadable}, {"filewritable", 1, 1, f_filewritable}, {"filter", 2, 2, f_filter}, {"finddir", 1, 3, f_finddir}, {"findfile", 1, 3, f_findfile}, #ifdef FEAT_FLOAT {"float2nr", 1, 1, f_float2nr}, {"floor", 1, 1, f_floor}, {"fmod", 2, 2, f_fmod}, #endif {"fnameescape", 1, 1, f_fnameescape}, {"fnamemodify", 2, 2, f_fnamemodify}, {"foldclosed", 1, 1, f_foldclosed}, {"foldclosedend", 1, 1, f_foldclosedend}, {"foldlevel", 1, 1, f_foldlevel}, {"foldtext", 0, 0, f_foldtext}, {"foldtextresult", 1, 1, f_foldtextresult}, {"foreground", 0, 0, f_foreground}, {"function", 1, 1, f_function}, {"garbagecollect", 0, 1, f_garbagecollect}, {"get", 2, 3, f_get}, {"getbufline", 2, 3, f_getbufline}, {"getbufvar", 2, 3, f_getbufvar}, {"getchar", 0, 1, f_getchar}, {"getcharmod", 0, 0, f_getcharmod}, {"getcharsearch", 0, 0, f_getcharsearch}, {"getcmdline", 0, 0, f_getcmdline}, {"getcmdpos", 0, 0, f_getcmdpos}, {"getcmdtype", 0, 0, f_getcmdtype}, {"getcmdwintype", 0, 0, f_getcmdwintype}, {"getcurpos", 0, 0, f_getcurpos}, {"getcwd", 0, 2, f_getcwd}, {"getfontname", 0, 1, f_getfontname}, {"getfperm", 1, 1, f_getfperm}, {"getfsize", 1, 1, f_getfsize}, {"getftime", 1, 1, f_getftime}, {"getftype", 1, 1, f_getftype}, {"getline", 1, 2, f_getline}, {"getloclist", 1, 1, f_getqflist}, {"getmatches", 0, 0, f_getmatches}, {"getpid", 0, 0, f_getpid}, {"getpos", 1, 1, f_getpos}, {"getqflist", 0, 0, f_getqflist}, {"getreg", 0, 3, f_getreg}, {"getregtype", 0, 1, f_getregtype}, {"gettabvar", 2, 3, f_gettabvar}, {"gettabwinvar", 3, 4, f_gettabwinvar}, {"getwinposx", 0, 0, f_getwinposx}, {"getwinposy", 0, 0, f_getwinposy}, {"getwinvar", 2, 3, f_getwinvar}, {"glob", 1, 4, f_glob}, {"glob2regpat", 1, 1, f_glob2regpat}, {"globpath", 2, 5, f_globpath}, {"has", 1, 1, f_has}, {"has_key", 2, 2, f_has_key}, {"haslocaldir", 0, 2, f_haslocaldir}, {"hasmapto", 1, 3, f_hasmapto}, {"highlightID", 1, 1, f_hlID}, /* obsolete */ {"highlight_exists",1, 1, f_hlexists}, /* obsolete */ {"histadd", 2, 2, f_histadd}, {"histdel", 1, 2, f_histdel}, {"histget", 1, 2, f_histget}, {"histnr", 1, 1, f_histnr}, {"hlID", 1, 1, f_hlID}, {"hlexists", 1, 1, f_hlexists}, {"hostname", 0, 0, f_hostname}, {"iconv", 3, 3, f_iconv}, {"indent", 1, 1, f_indent}, {"index", 2, 4, f_index}, {"input", 1, 3, f_input}, {"inputdialog", 1, 3, f_inputdialog}, {"inputlist", 1, 1, f_inputlist}, {"inputrestore", 0, 0, f_inputrestore}, {"inputsave", 0, 0, f_inputsave}, {"inputsecret", 1, 2, f_inputsecret}, {"insert", 2, 3, f_insert}, {"invert", 1, 1, f_invert}, {"isdirectory", 1, 1, f_isdirectory}, {"islocked", 1, 1, f_islocked}, {"items", 1, 1, f_items}, {"join", 1, 2, f_join}, {"jsondecode", 1, 1, f_jsondecode}, {"jsonencode", 1, 1, f_jsonencode}, {"keys", 1, 1, f_keys}, {"last_buffer_nr", 0, 0, f_last_buffer_nr},/* obsolete */ {"len", 1, 1, f_len}, {"libcall", 3, 3, f_libcall}, {"libcallnr", 3, 3, f_libcallnr}, {"line", 1, 1, f_line}, {"line2byte", 1, 1, f_line2byte}, {"lispindent", 1, 1, f_lispindent}, {"localtime", 0, 0, f_localtime}, #ifdef FEAT_FLOAT {"log", 1, 1, f_log}, {"log10", 1, 1, f_log10}, #endif #ifdef FEAT_LUA {"luaeval", 1, 2, f_luaeval}, #endif {"map", 2, 2, f_map}, {"maparg", 1, 4, f_maparg}, {"mapcheck", 1, 3, f_mapcheck}, {"match", 2, 4, f_match}, {"matchadd", 2, 5, f_matchadd}, {"matchaddpos", 2, 5, f_matchaddpos}, {"matcharg", 1, 1, f_matcharg}, {"matchdelete", 1, 1, f_matchdelete}, {"matchend", 2, 4, f_matchend}, {"matchlist", 2, 4, f_matchlist}, {"matchstr", 2, 4, f_matchstr}, {"max", 1, 1, f_max}, {"min", 1, 1, f_min}, #ifdef vim_mkdir {"mkdir", 1, 3, f_mkdir}, #endif {"mode", 0, 1, f_mode}, #ifdef FEAT_MZSCHEME {"mzeval", 1, 1, f_mzeval}, #endif {"nextnonblank", 1, 1, f_nextnonblank}, {"nr2char", 1, 2, f_nr2char}, {"or", 2, 2, f_or}, {"pathshorten", 1, 1, f_pathshorten}, #ifdef FEAT_PERL {"perleval", 1, 1, f_perleval}, #endif #ifdef FEAT_FLOAT {"pow", 2, 2, f_pow}, #endif {"prevnonblank", 1, 1, f_prevnonblank}, {"printf", 2, 19, f_printf}, {"pumvisible", 0, 0, f_pumvisible}, #ifdef FEAT_PYTHON3 {"py3eval", 1, 1, f_py3eval}, #endif #ifdef FEAT_PYTHON {"pyeval", 1, 1, f_pyeval}, #endif {"range", 1, 3, f_range}, {"readfile", 1, 3, f_readfile}, {"reltime", 0, 2, f_reltime}, {"reltimestr", 1, 1, f_reltimestr}, {"remote_expr", 2, 3, f_remote_expr}, {"remote_foreground", 1, 1, f_remote_foreground}, {"remote_peek", 1, 2, f_remote_peek}, {"remote_read", 1, 1, f_remote_read}, {"remote_send", 2, 3, f_remote_send}, {"remove", 2, 3, f_remove}, {"rename", 2, 2, f_rename}, {"repeat", 2, 2, f_repeat}, {"resolve", 1, 1, f_resolve}, {"reverse", 1, 1, f_reverse}, #ifdef FEAT_FLOAT {"round", 1, 1, f_round}, #endif {"screenattr", 2, 2, f_screenattr}, {"screenchar", 2, 2, f_screenchar}, {"screencol", 0, 0, f_screencol}, {"screenrow", 0, 0, f_screenrow}, {"search", 1, 4, f_search}, {"searchdecl", 1, 3, f_searchdecl}, {"searchpair", 3, 7, f_searchpair}, {"searchpairpos", 3, 7, f_searchpairpos}, {"searchpos", 1, 4, f_searchpos}, #ifdef FEAT_CHANNEL {"sendexpr", 2, 3, f_sendexpr}, {"sendraw", 2, 3, f_sendraw}, #endif {"server2client", 2, 2, f_server2client}, {"serverlist", 0, 0, f_serverlist}, {"setbufvar", 3, 3, f_setbufvar}, {"setcharsearch", 1, 1, f_setcharsearch}, {"setcmdpos", 1, 1, f_setcmdpos}, {"setline", 2, 2, f_setline}, {"setloclist", 2, 3, f_setloclist}, {"setmatches", 1, 1, f_setmatches}, {"setpos", 2, 2, f_setpos}, {"setqflist", 1, 2, f_setqflist}, {"setreg", 2, 3, f_setreg}, {"settabvar", 3, 3, f_settabvar}, {"settabwinvar", 4, 4, f_settabwinvar}, {"setwinvar", 3, 3, f_setwinvar}, #ifdef FEAT_CRYPT {"sha256", 1, 1, f_sha256}, #endif {"shellescape", 1, 2, f_shellescape}, {"shiftwidth", 0, 0, f_shiftwidth}, {"simplify", 1, 1, f_simplify}, #ifdef FEAT_FLOAT {"sin", 1, 1, f_sin}, {"sinh", 1, 1, f_sinh}, #endif {"sort", 1, 3, f_sort}, {"soundfold", 1, 1, f_soundfold}, {"spellbadword", 0, 1, f_spellbadword}, {"spellsuggest", 1, 3, f_spellsuggest}, {"split", 1, 3, f_split}, #ifdef FEAT_FLOAT {"sqrt", 1, 1, f_sqrt}, {"str2float", 1, 1, f_str2float}, #endif {"str2nr", 1, 2, f_str2nr}, {"strchars", 1, 2, f_strchars}, {"strdisplaywidth", 1, 2, f_strdisplaywidth}, #ifdef HAVE_STRFTIME {"strftime", 1, 2, f_strftime}, #endif {"stridx", 2, 3, f_stridx}, {"string", 1, 1, f_string}, {"strlen", 1, 1, f_strlen}, {"strpart", 2, 3, f_strpart}, {"strridx", 2, 3, f_strridx}, {"strtrans", 1, 1, f_strtrans}, {"strwidth", 1, 1, f_strwidth}, {"submatch", 1, 2, f_submatch}, {"substitute", 4, 4, f_substitute}, {"synID", 3, 3, f_synID}, {"synIDattr", 2, 3, f_synIDattr}, {"synIDtrans", 1, 1, f_synIDtrans}, {"synconcealed", 2, 2, f_synconcealed}, {"synstack", 2, 2, f_synstack}, {"system", 1, 2, f_system}, {"systemlist", 1, 2, f_systemlist}, {"tabpagebuflist", 0, 1, f_tabpagebuflist}, {"tabpagenr", 0, 1, f_tabpagenr}, {"tabpagewinnr", 1, 2, f_tabpagewinnr}, {"tagfiles", 0, 0, f_tagfiles}, {"taglist", 1, 1, f_taglist}, #ifdef FEAT_FLOAT {"tan", 1, 1, f_tan}, {"tanh", 1, 1, f_tanh}, #endif {"tempname", 0, 0, f_tempname}, {"test", 1, 1, f_test}, {"tolower", 1, 1, f_tolower}, {"toupper", 1, 1, f_toupper}, {"tr", 3, 3, f_tr}, #ifdef FEAT_FLOAT {"trunc", 1, 1, f_trunc}, #endif {"type", 1, 1, f_type}, {"undofile", 1, 1, f_undofile}, {"undotree", 0, 0, f_undotree}, {"uniq", 1, 3, f_uniq}, {"values", 1, 1, f_values}, {"virtcol", 1, 1, f_virtcol}, {"visualmode", 0, 1, f_visualmode}, {"wildmenumode", 0, 0, f_wildmenumode}, {"winbufnr", 1, 1, f_winbufnr}, {"wincol", 0, 0, f_wincol}, {"winheight", 1, 1, f_winheight}, {"winline", 0, 0, f_winline}, {"winnr", 0, 1, f_winnr}, {"winrestcmd", 0, 0, f_winrestcmd}, {"winrestview", 1, 1, f_winrestview}, {"winsaveview", 0, 0, f_winsaveview}, {"winwidth", 1, 1, f_winwidth}, {"wordcount", 0, 0, f_wordcount}, {"writefile", 2, 3, f_writefile}, {"xor", 2, 2, f_xor}, }; #if defined(FEAT_CMDL_COMPL) || defined(PROTO) /* * Function given to ExpandGeneric() to obtain the list of internal * or user defined function names. */ char_u * get_function_name(xp, idx) expand_T *xp; int idx; { static int intidx = -1; char_u *name; if (idx == 0) intidx = -1; if (intidx < 0) { name = get_user_func_name(xp, idx); if (name != NULL) return name; } if (++intidx < (int)(sizeof(functions) / sizeof(struct fst))) { STRCPY(IObuff, functions[intidx].f_name); STRCAT(IObuff, "("); if (functions[intidx].f_max_argc == 0) STRCAT(IObuff, ")"); return IObuff; } return NULL; } /* * Function given to ExpandGeneric() to obtain the list of internal or * user defined variable or function names. */ char_u * get_expr_name(xp, idx) expand_T *xp; int idx; { static int intidx = -1; char_u *name; if (idx == 0) intidx = -1; if (intidx < 0) { name = get_function_name(xp, idx); if (name != NULL) return name; } return get_user_var_name(xp, ++intidx); } #endif /* FEAT_CMDL_COMPL */ #if defined(EBCDIC) || defined(PROTO) /* * Compare struct fst by function name. */ static int compare_func_name(s1, s2) const void *s1; const void *s2; { struct fst *p1 = (struct fst *)s1; struct fst *p2 = (struct fst *)s2; return STRCMP(p1->f_name, p2->f_name); } /* * Sort the function table by function name. * The sorting of the table above is ASCII dependant. * On machines using EBCDIC we have to sort it. */ static void sortFunctions() { int funcCnt = (int)(sizeof(functions) / sizeof(struct fst)) - 1; qsort(functions, (size_t)funcCnt, sizeof(struct fst), compare_func_name); } #endif /* * Find internal function in table above. * Return index, or -1 if not found */ static int find_internal_func(name) char_u *name; /* name of the function */ { int first = 0; int last = (int)(sizeof(functions) / sizeof(struct fst)) - 1; int cmp; int x; /* * Find the function name in the table. Binary search. */ while (first <= last) { x = first + ((unsigned)(last - first) >> 1); cmp = STRCMP(name, functions[x].f_name); if (cmp < 0) last = x - 1; else if (cmp > 0) first = x + 1; else return x; } return -1; } /* * Check if "name" is a variable of type VAR_FUNC. If so, return the function * name it contains, otherwise return "name". */ static char_u * deref_func_name(name, lenp, no_autoload) char_u *name; int *lenp; int no_autoload; { dictitem_T *v; int cc; cc = name[*lenp]; name[*lenp] = NUL; v = find_var(name, NULL, no_autoload); name[*lenp] = cc; if (v != NULL && v->di_tv.v_type == VAR_FUNC) { if (v->di_tv.vval.v_string == NULL) { *lenp = 0; return (char_u *)""; /* just in case */ } *lenp = (int)STRLEN(v->di_tv.vval.v_string); return v->di_tv.vval.v_string; } return name; } /* * Allocate a variable for the result of a function. * Return OK or FAIL. */ static int get_func_tv(name, len, rettv, arg, firstline, lastline, doesrange, evaluate, selfdict) char_u *name; /* name of the function */ int len; /* length of "name" */ typval_T *rettv; char_u **arg; /* argument, pointing to the '(' */ linenr_T firstline; /* first line of range */ linenr_T lastline; /* last line of range */ int *doesrange; /* return: function handled range */ int evaluate; dict_T *selfdict; /* Dictionary for "self" */ { char_u *argp; int ret = OK; typval_T argvars[MAX_FUNC_ARGS + 1]; /* vars for arguments */ int argcount = 0; /* number of arguments found */ /* * Get the arguments. */ argp = *arg; while (argcount < MAX_FUNC_ARGS) { argp = skipwhite(argp + 1); /* skip the '(' or ',' */ if (*argp == ')' || *argp == ',' || *argp == NUL) break; if (eval1(&argp, &argvars[argcount], evaluate) == FAIL) { ret = FAIL; break; } ++argcount; if (*argp != ',') break; } if (*argp == ')') ++argp; else ret = FAIL; if (ret == OK) ret = call_func(name, len, rettv, argcount, argvars, firstline, lastline, doesrange, evaluate, selfdict); else if (!aborting()) { if (argcount == MAX_FUNC_ARGS) emsg_funcname(N_("E740: Too many arguments for function %s"), name); else emsg_funcname(N_("E116: Invalid arguments for function %s"), name); } while (--argcount >= 0) clear_tv(&argvars[argcount]); *arg = skipwhite(argp); return ret; } /* * Call a function with its resolved parameters * Return FAIL when the function can't be called, OK otherwise. * Also returns OK when an error was encountered while executing the function. */ int call_func(funcname, len, rettv, argcount, argvars, firstline, lastline, doesrange, evaluate, selfdict) char_u *funcname; /* name of the function */ int len; /* length of "name" */ typval_T *rettv; /* return value goes here */ int argcount; /* number of "argvars" */ typval_T *argvars; /* vars for arguments, must have "argcount" PLUS ONE elements! */ linenr_T firstline; /* first line of range */ linenr_T lastline; /* last line of range */ int *doesrange; /* return: function handled range */ int evaluate; dict_T *selfdict; /* Dictionary for "self" */ { int ret = FAIL; #define ERROR_UNKNOWN 0 #define ERROR_TOOMANY 1 #define ERROR_TOOFEW 2 #define ERROR_SCRIPT 3 #define ERROR_DICT 4 #define ERROR_NONE 5 #define ERROR_OTHER 6 int error = ERROR_NONE; int i; int llen; ufunc_T *fp; #define FLEN_FIXED 40 char_u fname_buf[FLEN_FIXED + 1]; char_u *fname; char_u *name; /* Make a copy of the name, if it comes from a funcref variable it could * be changed or deleted in the called function. */ name = vim_strnsave(funcname, len); if (name == NULL) return ret; /* * In a script change <SID>name() and s:name() to K_SNR 123_name(). * Change <SNR>123_name() to K_SNR 123_name(). * Use fname_buf[] when it fits, otherwise allocate memory (slow). */ llen = eval_fname_script(name); if (llen > 0) { fname_buf[0] = K_SPECIAL; fname_buf[1] = KS_EXTRA; fname_buf[2] = (int)KE_SNR; i = 3; if (eval_fname_sid(name)) /* "<SID>" or "s:" */ { if (current_SID <= 0) error = ERROR_SCRIPT; else { sprintf((char *)fname_buf + 3, "%ld_", (long)current_SID); i = (int)STRLEN(fname_buf); } } if (i + STRLEN(name + llen) < FLEN_FIXED) { STRCPY(fname_buf + i, name + llen); fname = fname_buf; } else { fname = alloc((unsigned)(i + STRLEN(name + llen) + 1)); if (fname == NULL) error = ERROR_OTHER; else { mch_memmove(fname, fname_buf, (size_t)i); STRCPY(fname + i, name + llen); } } } else fname = name; *doesrange = FALSE; /* execute the function if no errors detected and executing */ if (evaluate && error == ERROR_NONE) { char_u *rfname = fname; /* Ignore "g:" before a function name. */ if (fname[0] == 'g' && fname[1] == ':') rfname = fname + 2; rettv->v_type = VAR_NUMBER; /* default rettv is number zero */ rettv->vval.v_number = 0; error = ERROR_UNKNOWN; if (!builtin_function(rfname, -1)) { /* * User defined function. */ fp = find_func(rfname); #ifdef FEAT_AUTOCMD /* Trigger FuncUndefined event, may load the function. */ if (fp == NULL && apply_autocmds(EVENT_FUNCUNDEFINED, rfname, rfname, TRUE, NULL) && !aborting()) { /* executed an autocommand, search for the function again */ fp = find_func(rfname); } #endif /* Try loading a package. */ if (fp == NULL && script_autoload(rfname, TRUE) && !aborting()) { /* loaded a package, search for the function again */ fp = find_func(rfname); } if (fp != NULL) { if (fp->uf_flags & FC_RANGE) *doesrange = TRUE; if (argcount < fp->uf_args.ga_len) error = ERROR_TOOFEW; else if (!fp->uf_varargs && argcount > fp->uf_args.ga_len) error = ERROR_TOOMANY; else if ((fp->uf_flags & FC_DICT) && selfdict == NULL) error = ERROR_DICT; else { int did_save_redo = FALSE; /* * Call the user function. * Save and restore search patterns, script variables and * redo buffer. */ save_search_patterns(); #ifdef FEAT_INS_EXPAND if (!ins_compl_active()) #endif { saveRedobuff(); did_save_redo = TRUE; } ++fp->uf_calls; call_user_func(fp, argcount, argvars, rettv, firstline, lastline, (fp->uf_flags & FC_DICT) ? selfdict : NULL); if (--fp->uf_calls <= 0 && isdigit(*fp->uf_name) && fp->uf_refcount <= 0) /* Function was unreferenced while being used, free it * now. */ func_free(fp); if (did_save_redo) restoreRedobuff(); restore_search_patterns(); error = ERROR_NONE; } } } else { /* * Find the function name in the table, call its implementation. */ i = find_internal_func(fname); if (i >= 0) { if (argcount < functions[i].f_min_argc) error = ERROR_TOOFEW; else if (argcount > functions[i].f_max_argc) error = ERROR_TOOMANY; else { argvars[argcount].v_type = VAR_UNKNOWN; functions[i].f_func(argvars, rettv); error = ERROR_NONE; } } } /* * The function call (or "FuncUndefined" autocommand sequence) might * have been aborted by an error, an interrupt, or an explicitly thrown * exception that has not been caught so far. This situation can be * tested for by calling aborting(). For an error in an internal * function or for the "E132" error in call_user_func(), however, the * throw point at which the "force_abort" flag (temporarily reset by * emsg()) is normally updated has not been reached yet. We need to * update that flag first to make aborting() reliable. */ update_force_abort(); } if (error == ERROR_NONE) ret = OK; /* * Report an error unless the argument evaluation or function call has been * cancelled due to an aborting error, an interrupt, or an exception. */ if (!aborting()) { switch (error) { case ERROR_UNKNOWN: emsg_funcname(N_("E117: Unknown function: %s"), name); break; case ERROR_TOOMANY: emsg_funcname(e_toomanyarg, name); break; case ERROR_TOOFEW: emsg_funcname(N_("E119: Not enough arguments for function: %s"), name); break; case ERROR_SCRIPT: emsg_funcname(N_("E120: Using <SID> not in a script context: %s"), name); break; case ERROR_DICT: emsg_funcname(N_("E725: Calling dict function without Dictionary: %s"), name); break; } } if (fname != name && fname != fname_buf) vim_free(fname); vim_free(name); return ret; } /* * Give an error message with a function name. Handle <SNR> things. * "ermsg" is to be passed without translation, use N_() instead of _(). */ static void emsg_funcname(ermsg, name) char *ermsg; char_u *name; { char_u *p; if (*name == K_SPECIAL) p = concat_str((char_u *)"<SNR>", name + 3); else p = name; EMSG2(_(ermsg), p); if (p != name) vim_free(p); } /* * Return TRUE for a non-zero Number and a non-empty String. */ static int non_zero_arg(argvars) typval_T *argvars; { return ((argvars[0].v_type == VAR_NUMBER && argvars[0].vval.v_number != 0) || (argvars[0].v_type == VAR_STRING && argvars[0].vval.v_string != NULL && *argvars[0].vval.v_string != NUL)); } /********************************************* * Implementation of the built-in functions */ #ifdef FEAT_FLOAT static int get_float_arg(typval_T *argvars, float_T *f); /* * Get the float value of "argvars[0]" into "f". * Returns FAIL when the argument is not a Number or Float. */ static int get_float_arg(argvars, f) typval_T *argvars; float_T *f; { if (argvars[0].v_type == VAR_FLOAT) { *f = argvars[0].vval.v_float; return OK; } if (argvars[0].v_type == VAR_NUMBER) { *f = (float_T)argvars[0].vval.v_number; return OK; } EMSG(_("E808: Number or Float required")); return FAIL; } /* * "abs(expr)" function */ static void f_abs(argvars, rettv) typval_T *argvars; typval_T *rettv; { if (argvars[0].v_type == VAR_FLOAT) { rettv->v_type = VAR_FLOAT; rettv->vval.v_float = fabs(argvars[0].vval.v_float); } else { varnumber_T n; int error = FALSE; n = get_tv_number_chk(&argvars[0], &error); if (error) rettv->vval.v_number = -1; else if (n > 0) rettv->vval.v_number = n; else rettv->vval.v_number = -n; } } /* * "acos()" function */ static void f_acos(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = acos(f); else rettv->vval.v_float = 0.0; } #endif /* * "add(list, item)" function */ static void f_add(argvars, rettv) typval_T *argvars; typval_T *rettv; { list_T *l; rettv->vval.v_number = 1; /* Default: Failed */ if (argvars[0].v_type == VAR_LIST) { if ((l = argvars[0].vval.v_list) != NULL && !tv_check_lock(l->lv_lock, (char_u *)N_("add() argument"), TRUE) && list_append_tv(l, &argvars[1]) == OK) copy_tv(&argvars[0], rettv); } else EMSG(_(e_listreq)); } /* * "alloc_fail(id, countdown, repeat)" function */ static void f_alloc_fail(argvars, rettv) typval_T *argvars; typval_T *rettv UNUSED; { if (argvars[0].v_type != VAR_NUMBER || argvars[0].vval.v_number <= 0 || argvars[1].v_type != VAR_NUMBER || argvars[1].vval.v_number < 0 || argvars[2].v_type != VAR_NUMBER) EMSG(_(e_invarg)); else { alloc_fail_id = argvars[0].vval.v_number; if (alloc_fail_id >= aid_last) EMSG(_(e_invarg)); alloc_fail_countdown = argvars[1].vval.v_number; alloc_fail_repeat = argvars[2].vval.v_number; did_outofmem_msg = FALSE; } } /* * "and(expr, expr)" function */ static void f_and(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = get_tv_number_chk(&argvars[0], NULL) & get_tv_number_chk(&argvars[1], NULL); } /* * "append(lnum, string/list)" function */ static void f_append(argvars, rettv) typval_T *argvars; typval_T *rettv; { long lnum; char_u *line; list_T *l = NULL; listitem_T *li = NULL; typval_T *tv; long added = 0; /* When coming here from Insert mode, sync undo, so that this can be * undone separately from what was previously inserted. */ if (u_sync_once == 2) { u_sync_once = 1; /* notify that u_sync() was called */ u_sync(TRUE); } lnum = get_tv_lnum(argvars); if (lnum >= 0 && lnum <= curbuf->b_ml.ml_line_count && u_save(lnum, lnum + 1) == OK) { if (argvars[1].v_type == VAR_LIST) { l = argvars[1].vval.v_list; if (l == NULL) return; li = l->lv_first; } for (;;) { if (l == NULL) tv = &argvars[1]; /* append a string */ else if (li == NULL) break; /* end of list */ else tv = &li->li_tv; /* append item from list */ line = get_tv_string_chk(tv); if (line == NULL) /* type error */ { rettv->vval.v_number = 1; /* Failed */ break; } ml_append(lnum + added, line, (colnr_T)0, FALSE); ++added; if (l == NULL) break; li = li->li_next; } appended_lines_mark(lnum, added); if (curwin->w_cursor.lnum > lnum) curwin->w_cursor.lnum += added; } else rettv->vval.v_number = 1; /* Failed */ } /* * "argc()" function */ static void f_argc(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->vval.v_number = ARGCOUNT; } /* * "argidx()" function */ static void f_argidx(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->vval.v_number = curwin->w_arg_idx; } /* * "arglistid()" function */ static void f_arglistid(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { win_T *wp; rettv->vval.v_number = -1; wp = find_tabwin(&argvars[0], &argvars[1]); if (wp != NULL) rettv->vval.v_number = wp->w_alist->id; } /* * "argv(nr)" function */ static void f_argv(argvars, rettv) typval_T *argvars; typval_T *rettv; { int idx; if (argvars[0].v_type != VAR_UNKNOWN) { idx = get_tv_number_chk(&argvars[0], NULL); if (idx >= 0 && idx < ARGCOUNT) rettv->vval.v_string = vim_strsave(alist_name(&ARGLIST[idx])); else rettv->vval.v_string = NULL; rettv->v_type = VAR_STRING; } else if (rettv_list_alloc(rettv) == OK) for (idx = 0; idx < ARGCOUNT; ++idx) list_append_string(rettv->vval.v_list, alist_name(&ARGLIST[idx]), -1); } static void prepare_assert_error(garray_T*gap); static void fill_assert_error(garray_T *gap, typval_T *opt_msg_tv, char_u *exp_str, typval_T *exp_tv, typval_T *got_tv); static void assert_error(garray_T *gap); static void assert_bool(typval_T *argvars, int isTrue); /* * Prepare "gap" for an assert error and add the sourcing position. */ static void prepare_assert_error(gap) garray_T *gap; { char buf[NUMBUFLEN]; ga_init2(gap, 1, 100); if (sourcing_name != NULL) { ga_concat(gap, sourcing_name); if (sourcing_lnum > 0) ga_concat(gap, (char_u *)" "); } if (sourcing_lnum > 0) { sprintf(buf, "line %ld", (long)sourcing_lnum); ga_concat(gap, (char_u *)buf); } if (sourcing_name != NULL || sourcing_lnum > 0) ga_concat(gap, (char_u *)": "); } /* * Fill "gap" with information about an assert error. */ static void fill_assert_error(gap, opt_msg_tv, exp_str, exp_tv, got_tv) garray_T *gap; typval_T *opt_msg_tv; char_u *exp_str; typval_T *exp_tv; typval_T *got_tv; { char_u numbuf[NUMBUFLEN]; char_u *tofree; if (opt_msg_tv->v_type != VAR_UNKNOWN) { ga_concat(gap, tv2string(opt_msg_tv, &tofree, numbuf, 0)); vim_free(tofree); } else { ga_concat(gap, (char_u *)"Expected "); if (exp_str == NULL) { ga_concat(gap, tv2string(exp_tv, &tofree, numbuf, 0)); vim_free(tofree); } else ga_concat(gap, exp_str); ga_concat(gap, (char_u *)" but got "); ga_concat(gap, tv2string(got_tv, &tofree, numbuf, 0)); vim_free(tofree); } } /* * Add an assert error to v:errors. */ static void assert_error(gap) garray_T *gap; { struct vimvar *vp = &vimvars[VV_ERRORS]; if (vp->vv_type != VAR_LIST || vimvars[VV_ERRORS].vv_list == NULL) /* Make sure v:errors is a list. */ set_vim_var_list(VV_ERRORS, list_alloc()); list_append_string(vimvars[VV_ERRORS].vv_list, gap->ga_data, gap->ga_len); } /* * "assert_equal(expected, actual[, msg])" function */ static void f_assert_equal(argvars, rettv) typval_T *argvars; typval_T *rettv UNUSED; { garray_T ga; if (!tv_equal(&argvars[0], &argvars[1], FALSE, FALSE)) { prepare_assert_error(&ga); fill_assert_error(&ga, &argvars[2], NULL, &argvars[0], &argvars[1]); assert_error(&ga); ga_clear(&ga); } } /* * "assert_exception(string[, msg])" function */ static void f_assert_exception(argvars, rettv) typval_T *argvars; typval_T *rettv UNUSED; { garray_T ga; char *error; error = (char *)get_tv_string_chk(&argvars[0]); if (vimvars[VV_EXCEPTION].vv_str == NULL) { prepare_assert_error(&ga); ga_concat(&ga, (char_u *)"v:exception is not set"); assert_error(&ga); ga_clear(&ga); } else if (error != NULL && strstr((char *)vimvars[VV_EXCEPTION].vv_str, error) == NULL) { prepare_assert_error(&ga); fill_assert_error(&ga, &argvars[1], NULL, &argvars[0], &vimvars[VV_EXCEPTION].vv_tv); assert_error(&ga); ga_clear(&ga); } } /* * "assert_fails(cmd [, error])" function */ static void f_assert_fails(argvars, rettv) typval_T *argvars; typval_T *rettv UNUSED; { char_u *cmd = get_tv_string_chk(&argvars[0]); garray_T ga; called_emsg = FALSE; suppress_errthrow = TRUE; emsg_silent = TRUE; do_cmdline_cmd(cmd); if (!called_emsg) { prepare_assert_error(&ga); ga_concat(&ga, (char_u *)"command did not fail: "); ga_concat(&ga, cmd); assert_error(&ga); ga_clear(&ga); } else if (argvars[1].v_type != VAR_UNKNOWN) { char_u buf[NUMBUFLEN]; char *error = (char *)get_tv_string_buf_chk(&argvars[1], buf); if (strstr((char *)vimvars[VV_ERRMSG].vv_str, error) == NULL) { prepare_assert_error(&ga); fill_assert_error(&ga, &argvars[2], NULL, &argvars[1], &vimvars[VV_ERRMSG].vv_tv); assert_error(&ga); ga_clear(&ga); } } called_emsg = FALSE; suppress_errthrow = FALSE; emsg_silent = FALSE; emsg_on_display = FALSE; set_vim_var_string(VV_ERRMSG, NULL, 0); } /* * Common for assert_true() and assert_false(). */ static void assert_bool(argvars, isTrue) typval_T *argvars; int isTrue; { int error = FALSE; garray_T ga; if (argvars[0].v_type != VAR_NUMBER || (get_tv_number_chk(&argvars[0], &error) == 0) == isTrue || error) { prepare_assert_error(&ga); fill_assert_error(&ga, &argvars[1], (char_u *)(isTrue ? "True" : "False"), NULL, &argvars[0]); assert_error(&ga); ga_clear(&ga); } } /* * "assert_false(actual[, msg])" function */ static void f_assert_false(argvars, rettv) typval_T *argvars; typval_T *rettv UNUSED; { assert_bool(argvars, FALSE); } /* * "assert_true(actual[, msg])" function */ static void f_assert_true(argvars, rettv) typval_T *argvars; typval_T *rettv UNUSED; { assert_bool(argvars, TRUE); } #ifdef FEAT_FLOAT /* * "asin()" function */ static void f_asin(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = asin(f); else rettv->vval.v_float = 0.0; } /* * "atan()" function */ static void f_atan(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = atan(f); else rettv->vval.v_float = 0.0; } /* * "atan2()" function */ static void f_atan2(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T fx, fy; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &fx) == OK && get_float_arg(&argvars[1], &fy) == OK) rettv->vval.v_float = atan2(fx, fy); else rettv->vval.v_float = 0.0; } #endif /* * "browse(save, title, initdir, default)" function */ static void f_browse(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifdef FEAT_BROWSE int save; char_u *title; char_u *initdir; char_u *defname; char_u buf[NUMBUFLEN]; char_u buf2[NUMBUFLEN]; int error = FALSE; save = get_tv_number_chk(&argvars[0], &error); title = get_tv_string_chk(&argvars[1]); initdir = get_tv_string_buf_chk(&argvars[2], buf); defname = get_tv_string_buf_chk(&argvars[3], buf2); if (error || title == NULL || initdir == NULL || defname == NULL) rettv->vval.v_string = NULL; else rettv->vval.v_string = do_browse(save ? BROWSE_SAVE : 0, title, defname, NULL, initdir, NULL, curbuf); #else rettv->vval.v_string = NULL; #endif rettv->v_type = VAR_STRING; } /* * "browsedir(title, initdir)" function */ static void f_browsedir(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifdef FEAT_BROWSE char_u *title; char_u *initdir; char_u buf[NUMBUFLEN]; title = get_tv_string_chk(&argvars[0]); initdir = get_tv_string_buf_chk(&argvars[1], buf); if (title == NULL || initdir == NULL) rettv->vval.v_string = NULL; else rettv->vval.v_string = do_browse(BROWSE_DIR, title, NULL, NULL, initdir, NULL, curbuf); #else rettv->vval.v_string = NULL; #endif rettv->v_type = VAR_STRING; } static buf_T *find_buffer(typval_T *avar); /* * Find a buffer by number or exact name. */ static buf_T * find_buffer(avar) typval_T *avar; { buf_T *buf = NULL; if (avar->v_type == VAR_NUMBER) buf = buflist_findnr((int)avar->vval.v_number); else if (avar->v_type == VAR_STRING && avar->vval.v_string != NULL) { buf = buflist_findname_exp(avar->vval.v_string); if (buf == NULL) { /* No full path name match, try a match with a URL or a "nofile" * buffer, these don't use the full path. */ for (buf = firstbuf; buf != NULL; buf = buf->b_next) if (buf->b_fname != NULL && (path_with_url(buf->b_fname) #ifdef FEAT_QUICKFIX || bt_nofile(buf) #endif ) && STRCMP(buf->b_fname, avar->vval.v_string) == 0) break; } } return buf; } /* * "bufexists(expr)" function */ static void f_bufexists(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = (find_buffer(&argvars[0]) != NULL); } /* * "buflisted(expr)" function */ static void f_buflisted(argvars, rettv) typval_T *argvars; typval_T *rettv; { buf_T *buf; buf = find_buffer(&argvars[0]); rettv->vval.v_number = (buf != NULL && buf->b_p_bl); } /* * "bufloaded(expr)" function */ static void f_bufloaded(argvars, rettv) typval_T *argvars; typval_T *rettv; { buf_T *buf; buf = find_buffer(&argvars[0]); rettv->vval.v_number = (buf != NULL && buf->b_ml.ml_mfp != NULL); } static buf_T *get_buf_tv(typval_T *tv, int curtab_only); /* * Get buffer by number or pattern. */ static buf_T * get_buf_tv(tv, curtab_only) typval_T *tv; int curtab_only; { char_u *name = tv->vval.v_string; int save_magic; char_u *save_cpo; buf_T *buf; if (tv->v_type == VAR_NUMBER) return buflist_findnr((int)tv->vval.v_number); if (tv->v_type != VAR_STRING) return NULL; if (name == NULL || *name == NUL) return curbuf; if (name[0] == '$' && name[1] == NUL) return lastbuf; /* Ignore 'magic' and 'cpoptions' here to make scripts portable */ save_magic = p_magic; p_magic = TRUE; save_cpo = p_cpo; p_cpo = (char_u *)""; buf = buflist_findnr(buflist_findpat(name, name + STRLEN(name), TRUE, FALSE, curtab_only)); p_magic = save_magic; p_cpo = save_cpo; /* If not found, try expanding the name, like done for bufexists(). */ if (buf == NULL) buf = find_buffer(tv); return buf; } /* * "bufname(expr)" function */ static void f_bufname(argvars, rettv) typval_T *argvars; typval_T *rettv; { buf_T *buf; (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */ ++emsg_off; buf = get_buf_tv(&argvars[0], FALSE); rettv->v_type = VAR_STRING; if (buf != NULL && buf->b_fname != NULL) rettv->vval.v_string = vim_strsave(buf->b_fname); else rettv->vval.v_string = NULL; --emsg_off; } /* * "bufnr(expr)" function */ static void f_bufnr(argvars, rettv) typval_T *argvars; typval_T *rettv; { buf_T *buf; int error = FALSE; char_u *name; (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */ ++emsg_off; buf = get_buf_tv(&argvars[0], FALSE); --emsg_off; /* If the buffer isn't found and the second argument is not zero create a * new buffer. */ if (buf == NULL && argvars[1].v_type != VAR_UNKNOWN && get_tv_number_chk(&argvars[1], &error) != 0 && !error && (name = get_tv_string_chk(&argvars[0])) != NULL && !error) buf = buflist_new(name, NULL, (linenr_T)1, 0); if (buf != NULL) rettv->vval.v_number = buf->b_fnum; else rettv->vval.v_number = -1; } /* * "bufwinnr(nr)" function */ static void f_bufwinnr(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_WINDOWS win_T *wp; int winnr = 0; #endif buf_T *buf; (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */ ++emsg_off; buf = get_buf_tv(&argvars[0], TRUE); #ifdef FEAT_WINDOWS for (wp = firstwin; wp; wp = wp->w_next) { ++winnr; if (wp->w_buffer == buf) break; } rettv->vval.v_number = (wp != NULL ? winnr : -1); #else rettv->vval.v_number = (curwin->w_buffer == buf ? 1 : -1); #endif --emsg_off; } /* * "byte2line(byte)" function */ static void f_byte2line(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifndef FEAT_BYTEOFF rettv->vval.v_number = -1; #else long boff = 0; boff = get_tv_number(&argvars[0]) - 1; /* boff gets -1 on type error */ if (boff < 0) rettv->vval.v_number = -1; else rettv->vval.v_number = ml_find_line_or_offset(curbuf, (linenr_T)0, &boff); #endif } static void byteidx(argvars, rettv, comp) typval_T *argvars; typval_T *rettv; int comp UNUSED; { #ifdef FEAT_MBYTE char_u *t; #endif char_u *str; long idx; str = get_tv_string_chk(&argvars[0]); idx = get_tv_number_chk(&argvars[1], NULL); rettv->vval.v_number = -1; if (str == NULL || idx < 0) return; #ifdef FEAT_MBYTE t = str; for ( ; idx > 0; idx--) { if (*t == NUL) /* EOL reached */ return; if (enc_utf8 && comp) t += utf_ptr2len(t); else t += (*mb_ptr2len)(t); } rettv->vval.v_number = (varnumber_T)(t - str); #else if ((size_t)idx <= STRLEN(str)) rettv->vval.v_number = idx; #endif } /* * "byteidx()" function */ static void f_byteidx(argvars, rettv) typval_T *argvars; typval_T *rettv; { byteidx(argvars, rettv, FALSE); } /* * "byteidxcomp()" function */ static void f_byteidxcomp(argvars, rettv) typval_T *argvars; typval_T *rettv; { byteidx(argvars, rettv, TRUE); } int func_call(name, args, selfdict, rettv) char_u *name; typval_T *args; dict_T *selfdict; typval_T *rettv; { listitem_T *item; typval_T argv[MAX_FUNC_ARGS + 1]; int argc = 0; int dummy; int r = 0; for (item = args->vval.v_list->lv_first; item != NULL; item = item->li_next) { if (argc == MAX_FUNC_ARGS) { EMSG(_("E699: Too many arguments")); break; } /* Make a copy of each argument. This is needed to be able to set * v_lock to VAR_FIXED in the copy without changing the original list. */ copy_tv(&item->li_tv, &argv[argc++]); } if (item == NULL) r = call_func(name, (int)STRLEN(name), rettv, argc, argv, curwin->w_cursor.lnum, curwin->w_cursor.lnum, &dummy, TRUE, selfdict); /* Free the arguments. */ while (argc > 0) clear_tv(&argv[--argc]); return r; } /* * "call(func, arglist)" function */ static void f_call(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *func; dict_T *selfdict = NULL; if (argvars[1].v_type != VAR_LIST) { EMSG(_(e_listreq)); return; } if (argvars[1].vval.v_list == NULL) return; if (argvars[0].v_type == VAR_FUNC) func = argvars[0].vval.v_string; else func = get_tv_string(&argvars[0]); if (*func == NUL) return; /* type error or empty name */ if (argvars[2].v_type != VAR_UNKNOWN) { if (argvars[2].v_type != VAR_DICT) { EMSG(_(e_dictreq)); return; } selfdict = argvars[2].vval.v_dict; } (void)func_call(func, &argvars[1], selfdict, rettv); } #ifdef FEAT_FLOAT /* * "ceil({float})" function */ static void f_ceil(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = ceil(f); else rettv->vval.v_float = 0.0; } #endif /* * "changenr()" function */ static void f_changenr(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->vval.v_number = curbuf->b_u_seq_cur; } /* * "char2nr(string)" function */ static void f_char2nr(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_MBYTE if (has_mbyte) { int utf8 = 0; if (argvars[1].v_type != VAR_UNKNOWN) utf8 = get_tv_number_chk(&argvars[1], NULL); if (utf8) rettv->vval.v_number = (*utf_ptr2char)(get_tv_string(&argvars[0])); else rettv->vval.v_number = (*mb_ptr2char)(get_tv_string(&argvars[0])); } else #endif rettv->vval.v_number = get_tv_string(&argvars[0])[0]; } /* * "cindent(lnum)" function */ static void f_cindent(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifdef FEAT_CINDENT pos_T pos; linenr_T lnum; pos = curwin->w_cursor; lnum = get_tv_lnum(argvars); if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) { curwin->w_cursor.lnum = lnum; rettv->vval.v_number = get_c_indent(); curwin->w_cursor = pos; } else #endif rettv->vval.v_number = -1; } /* * "clearmatches()" function */ static void f_clearmatches(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_SEARCH_EXTRA clear_matches(curwin); #endif } /* * "col(string)" function */ static void f_col(argvars, rettv) typval_T *argvars; typval_T *rettv; { colnr_T col = 0; pos_T *fp; int fnum = curbuf->b_fnum; fp = var2fpos(&argvars[0], FALSE, &fnum); if (fp != NULL && fnum == curbuf->b_fnum) { if (fp->col == MAXCOL) { /* '> can be MAXCOL, get the length of the line then */ if (fp->lnum <= curbuf->b_ml.ml_line_count) col = (colnr_T)STRLEN(ml_get(fp->lnum)) + 1; else col = MAXCOL; } else { col = fp->col + 1; #ifdef FEAT_VIRTUALEDIT /* col(".") when the cursor is on the NUL at the end of the line * because of "coladd" can be seen as an extra column. */ if (virtual_active() && fp == &curwin->w_cursor) { char_u *p = ml_get_cursor(); if (curwin->w_cursor.coladd >= (colnr_T)chartabsize(p, curwin->w_virtcol - curwin->w_cursor.coladd)) { # ifdef FEAT_MBYTE int l; if (*p != NUL && p[(l = (*mb_ptr2len)(p))] == NUL) col += l; # else if (*p != NUL && p[1] == NUL) ++col; # endif } } #endif } } rettv->vval.v_number = col; } #if defined(FEAT_INS_EXPAND) /* * "complete()" function */ static void f_complete(argvars, rettv) typval_T *argvars; typval_T *rettv UNUSED; { int startcol; if ((State & INSERT) == 0) { EMSG(_("E785: complete() can only be used in Insert mode")); return; } /* Check for undo allowed here, because if something was already inserted * the line was already saved for undo and this check isn't done. */ if (!undo_allowed()) return; if (argvars[1].v_type != VAR_LIST || argvars[1].vval.v_list == NULL) { EMSG(_(e_invarg)); return; } startcol = get_tv_number_chk(&argvars[0], NULL); if (startcol <= 0) return; set_completion(startcol - 1, argvars[1].vval.v_list); } /* * "complete_add()" function */ static void f_complete_add(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = ins_compl_add_tv(&argvars[0], 0); } /* * "complete_check()" function */ static void f_complete_check(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { int saved = RedrawingDisabled; RedrawingDisabled = 0; ins_compl_check_keys(0); rettv->vval.v_number = compl_interrupted; RedrawingDisabled = saved; } #endif /* * "confirm(message, buttons[, default [, type]])" function */ static void f_confirm(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) char_u *message; char_u *buttons = NULL; char_u buf[NUMBUFLEN]; char_u buf2[NUMBUFLEN]; int def = 1; int type = VIM_GENERIC; char_u *typestr; int error = FALSE; message = get_tv_string_chk(&argvars[0]); if (message == NULL) error = TRUE; if (argvars[1].v_type != VAR_UNKNOWN) { buttons = get_tv_string_buf_chk(&argvars[1], buf); if (buttons == NULL) error = TRUE; if (argvars[2].v_type != VAR_UNKNOWN) { def = get_tv_number_chk(&argvars[2], &error); if (argvars[3].v_type != VAR_UNKNOWN) { typestr = get_tv_string_buf_chk(&argvars[3], buf2); if (typestr == NULL) error = TRUE; else { switch (TOUPPER_ASC(*typestr)) { case 'E': type = VIM_ERROR; break; case 'Q': type = VIM_QUESTION; break; case 'I': type = VIM_INFO; break; case 'W': type = VIM_WARNING; break; case 'G': type = VIM_GENERIC; break; } } } } } if (buttons == NULL || *buttons == NUL) buttons = (char_u *)_("&Ok"); if (!error) rettv->vval.v_number = do_dialog(type, NULL, message, buttons, def, NULL, FALSE); #endif } /* * "copy()" function */ static void f_copy(argvars, rettv) typval_T *argvars; typval_T *rettv; { item_copy(&argvars[0], rettv, FALSE, 0); } #ifdef FEAT_FLOAT /* * "cos()" function */ static void f_cos(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = cos(f); else rettv->vval.v_float = 0.0; } /* * "cosh()" function */ static void f_cosh(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = cosh(f); else rettv->vval.v_float = 0.0; } #endif /* * "count()" function */ static void f_count(argvars, rettv) typval_T *argvars; typval_T *rettv; { long n = 0; int ic = FALSE; if (argvars[0].v_type == VAR_LIST) { listitem_T *li; list_T *l; long idx; if ((l = argvars[0].vval.v_list) != NULL) { li = l->lv_first; if (argvars[2].v_type != VAR_UNKNOWN) { int error = FALSE; ic = get_tv_number_chk(&argvars[2], &error); if (argvars[3].v_type != VAR_UNKNOWN) { idx = get_tv_number_chk(&argvars[3], &error); if (!error) { li = list_find(l, idx); if (li == NULL) EMSGN(_(e_listidx), idx); } } if (error) li = NULL; } for ( ; li != NULL; li = li->li_next) if (tv_equal(&li->li_tv, &argvars[1], ic, FALSE)) ++n; } } else if (argvars[0].v_type == VAR_DICT) { int todo; dict_T *d; hashitem_T *hi; if ((d = argvars[0].vval.v_dict) != NULL) { int error = FALSE; if (argvars[2].v_type != VAR_UNKNOWN) { ic = get_tv_number_chk(&argvars[2], &error); if (argvars[3].v_type != VAR_UNKNOWN) EMSG(_(e_invarg)); } todo = error ? 0 : (int)d->dv_hashtab.ht_used; for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; if (tv_equal(&HI2DI(hi)->di_tv, &argvars[1], ic, FALSE)) ++n; } } } } else EMSG2(_(e_listdictarg), "count()"); rettv->vval.v_number = n; } #ifdef FEAT_CHANNEL /* * Get a callback from "arg". It can be a Funcref or a function name. * When "arg" is zero return an empty string. * Return NULL for an invalid argument. */ static char_u * get_callback(typval_T *arg) { if (arg->v_type == VAR_FUNC || arg->v_type == VAR_STRING) return arg->vval.v_string; if (arg->v_type == VAR_NUMBER && arg->vval.v_number == 0) return (char_u *)""; EMSG(_("E999: Invalid callback argument")); return NULL; } /* * "connect()" function */ static void f_connect(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *address; char_u *mode; char_u *callback = NULL; char_u buf1[NUMBUFLEN]; char_u *p; int port; int json_mode = FALSE; address = get_tv_string(&argvars[0]); mode = get_tv_string_buf(&argvars[1], buf1); if (argvars[2].v_type != VAR_UNKNOWN) { callback = get_callback(&argvars[2]); if (callback == NULL) return; } /* parse address */ p = vim_strchr(address, ':'); if (p == NULL) { EMSG2(_(e_invarg2), address); return; } *p++ = NUL; port = atoi((char *)p); if (*address == NUL || port <= 0) { p[-1] = ':'; EMSG2(_(e_invarg2), address); return; } /* parse mode */ if (STRCMP(mode, "json") == 0) json_mode = TRUE; else if (STRCMP(mode, "raw") != 0) { EMSG2(_(e_invarg2), mode); return; } rettv->vval.v_number = channel_open((char *)address, port, NULL); if (rettv->vval.v_number >= 0) { channel_set_json_mode(rettv->vval.v_number, json_mode); if (callback != NULL && *callback != NUL) channel_set_callback(rettv->vval.v_number, callback); } } #endif /* * "cscope_connection([{num} , {dbpath} [, {prepend}]])" function * * Checks the existence of a cscope connection. */ static void f_cscope_connection(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_CSCOPE int num = 0; char_u *dbpath = NULL; char_u *prepend = NULL; char_u buf[NUMBUFLEN]; if (argvars[0].v_type != VAR_UNKNOWN && argvars[1].v_type != VAR_UNKNOWN) { num = (int)get_tv_number(&argvars[0]); dbpath = get_tv_string(&argvars[1]); if (argvars[2].v_type != VAR_UNKNOWN) prepend = get_tv_string_buf(&argvars[2], buf); } rettv->vval.v_number = cs_connection(num, dbpath, prepend); #endif } /* * "cursor(lnum, col)" function, or * "cursor(list)" * * Moves the cursor to the specified line and column. * Returns 0 when the position could be set, -1 otherwise. */ static void f_cursor(argvars, rettv) typval_T *argvars; typval_T *rettv; { long line, col; #ifdef FEAT_VIRTUALEDIT long coladd = 0; #endif int set_curswant = TRUE; rettv->vval.v_number = -1; if (argvars[1].v_type == VAR_UNKNOWN) { pos_T pos; colnr_T curswant = -1; if (list2fpos(argvars, &pos, NULL, &curswant) == FAIL) { EMSG(_(e_invarg)); return; } line = pos.lnum; col = pos.col; #ifdef FEAT_VIRTUALEDIT coladd = pos.coladd; #endif if (curswant >= 0) { curwin->w_curswant = curswant - 1; set_curswant = FALSE; } } else { line = get_tv_lnum(argvars); col = get_tv_number_chk(&argvars[1], NULL); #ifdef FEAT_VIRTUALEDIT if (argvars[2].v_type != VAR_UNKNOWN) coladd = get_tv_number_chk(&argvars[2], NULL); #endif } if (line < 0 || col < 0 #ifdef FEAT_VIRTUALEDIT || coladd < 0 #endif ) return; /* type error; errmsg already given */ if (line > 0) curwin->w_cursor.lnum = line; if (col > 0) curwin->w_cursor.col = col - 1; #ifdef FEAT_VIRTUALEDIT curwin->w_cursor.coladd = coladd; #endif /* Make sure the cursor is in a valid position. */ check_cursor(); #ifdef FEAT_MBYTE /* Correct cursor for multi-byte character. */ if (has_mbyte) mb_adjust_cursor(); #endif curwin->w_set_curswant = set_curswant; rettv->vval.v_number = 0; } /* * "deepcopy()" function */ static void f_deepcopy(argvars, rettv) typval_T *argvars; typval_T *rettv; { int noref = 0; if (argvars[1].v_type != VAR_UNKNOWN) noref = get_tv_number_chk(&argvars[1], NULL); if (noref < 0 || noref > 1) EMSG(_(e_invarg)); else { current_copyID += COPYID_INC; item_copy(&argvars[0], rettv, TRUE, noref == 0 ? current_copyID : 0); } } /* * "delete()" function */ static void f_delete(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u nbuf[NUMBUFLEN]; char_u *name; char_u *flags; rettv->vval.v_number = -1; if (check_restricted() || check_secure()) return; name = get_tv_string(&argvars[0]); if (name == NULL || *name == NUL) { EMSG(_(e_invarg)); return; } if (argvars[1].v_type != VAR_UNKNOWN) flags = get_tv_string_buf(&argvars[1], nbuf); else flags = (char_u *)""; if (*flags == NUL) /* delete a file */ rettv->vval.v_number = mch_remove(name) == 0 ? 0 : -1; else if (STRCMP(flags, "d") == 0) /* delete an empty directory */ rettv->vval.v_number = mch_rmdir(name) == 0 ? 0 : -1; else if (STRCMP(flags, "rf") == 0) /* delete a directory recursively */ rettv->vval.v_number = delete_recursive(name); else EMSG2(_(e_invexpr2), flags); } /* * "did_filetype()" function */ static void f_did_filetype(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_AUTOCMD rettv->vval.v_number = did_filetype; #endif } /* * "diff_filler()" function */ static void f_diff_filler(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_DIFF rettv->vval.v_number = diff_check_fill(curwin, get_tv_lnum(argvars)); #endif } /* * "diff_hlID()" function */ static void f_diff_hlID(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_DIFF linenr_T lnum = get_tv_lnum(argvars); static linenr_T prev_lnum = 0; static int changedtick = 0; static int fnum = 0; static int change_start = 0; static int change_end = 0; static hlf_T hlID = (hlf_T)0; int filler_lines; int col; if (lnum < 0) /* ignore type error in {lnum} arg */ lnum = 0; if (lnum != prev_lnum || changedtick != curbuf->b_changedtick || fnum != curbuf->b_fnum) { /* New line, buffer, change: need to get the values. */ filler_lines = diff_check(curwin, lnum); if (filler_lines < 0) { if (filler_lines == -1) { change_start = MAXCOL; change_end = -1; if (diff_find_change(curwin, lnum, &change_start, &change_end)) hlID = HLF_ADD; /* added line */ else hlID = HLF_CHD; /* changed line */ } else hlID = HLF_ADD; /* added line */ } else hlID = (hlf_T)0; prev_lnum = lnum; changedtick = curbuf->b_changedtick; fnum = curbuf->b_fnum; } if (hlID == HLF_CHD || hlID == HLF_TXD) { col = get_tv_number(&argvars[1]) - 1; /* ignore type error in {col} */ if (col >= change_start && col <= change_end) hlID = HLF_TXD; /* changed text */ else hlID = HLF_CHD; /* changed line */ } rettv->vval.v_number = hlID == (hlf_T)0 ? 0 : (int)hlID; #endif } #ifdef FEAT_CHANNEL /* * Get the channel index from the handle argument. * Returns -1 if the handle is invalid or the channel is closed. */ static int get_channel_arg(typval_T *tv) { int ch_idx; if (tv->v_type != VAR_NUMBER) { EMSG2(_(e_invarg2), get_tv_string(tv)); return -1; } ch_idx = tv->vval.v_number; if (!channel_is_open(ch_idx)) { EMSGN(_("E999: not an open channel"), ch_idx); return -1; } return ch_idx; } /* * "disconnect()" function */ static void f_disconnect(argvars, rettv) typval_T *argvars; typval_T *rettv UNUSED; { int ch_idx = get_channel_arg(&argvars[0]); if (ch_idx >= 0) channel_close(ch_idx); } #endif /* * "empty({expr})" function */ static void f_empty(argvars, rettv) typval_T *argvars; typval_T *rettv; { int n; switch (argvars[0].v_type) { case VAR_STRING: case VAR_FUNC: n = argvars[0].vval.v_string == NULL || *argvars[0].vval.v_string == NUL; break; case VAR_NUMBER: n = argvars[0].vval.v_number == 0; break; #ifdef FEAT_FLOAT case VAR_FLOAT: n = argvars[0].vval.v_float == 0.0; break; #endif case VAR_LIST: n = argvars[0].vval.v_list == NULL || argvars[0].vval.v_list->lv_first == NULL; break; case VAR_DICT: n = argvars[0].vval.v_dict == NULL || argvars[0].vval.v_dict->dv_hashtab.ht_used == 0; break; case VAR_SPECIAL: n = argvars[0].vval.v_number != VVAL_TRUE; break; default: EMSG2(_(e_intern2), "f_empty()"); n = 0; } rettv->vval.v_number = n; } /* * "escape({string}, {chars})" function */ static void f_escape(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u buf[NUMBUFLEN]; rettv->vval.v_string = vim_strsave_escaped(get_tv_string(&argvars[0]), get_tv_string_buf(&argvars[1], buf)); rettv->v_type = VAR_STRING; } /* * "eval()" function */ static void f_eval(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *s, *p; s = get_tv_string_chk(&argvars[0]); if (s != NULL) s = skipwhite(s); p = s; if (s == NULL || eval1(&s, rettv, TRUE) == FAIL) { if (p != NULL && !aborting()) EMSG2(_(e_invexpr2), p); need_clr_eos = FALSE; rettv->v_type = VAR_NUMBER; rettv->vval.v_number = 0; } else if (*s != NUL) EMSG(_(e_trailing)); } /* * "eventhandler()" function */ static void f_eventhandler(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->vval.v_number = vgetc_busy; } /* * "executable()" function */ static void f_executable(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *name = get_tv_string(&argvars[0]); /* Check in $PATH and also check directly if there is a directory name. */ rettv->vval.v_number = mch_can_exe(name, NULL, TRUE) || (gettail(name) != name && mch_can_exe(name, NULL, FALSE)); } /* * "exepath()" function */ static void f_exepath(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p = NULL; (void)mch_can_exe(get_tv_string(&argvars[0]), &p, TRUE); rettv->v_type = VAR_STRING; rettv->vval.v_string = p; } /* * "exists()" function */ static void f_exists(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p; char_u *name; int n = FALSE; int len = 0; p = get_tv_string(&argvars[0]); if (*p == '$') /* environment variable */ { /* first try "normal" environment variables (fast) */ if (mch_getenv(p + 1) != NULL) n = TRUE; else { /* try expanding things like $VIM and ${HOME} */ p = expand_env_save(p); if (p != NULL && *p != '$') n = TRUE; vim_free(p); } } else if (*p == '&' || *p == '+') /* option */ { n = (get_option_tv(&p, NULL, TRUE) == OK); if (*skipwhite(p) != NUL) n = FALSE; /* trailing garbage */ } else if (*p == '*') /* internal or user defined function */ { n = function_exists(p + 1); } else if (*p == ':') { n = cmd_exists(p + 1); } else if (*p == '#') { #ifdef FEAT_AUTOCMD if (p[1] == '#') n = autocmd_supported(p + 2); else n = au_exists(p + 1); #endif } else /* internal variable */ { char_u *tofree; typval_T tv; /* get_name_len() takes care of expanding curly braces */ name = p; len = get_name_len(&p, &tofree, TRUE, FALSE); if (len > 0) { if (tofree != NULL) name = tofree; n = (get_var_tv(name, len, &tv, NULL, FALSE, TRUE) == OK); if (n) { /* handle d.key, l[idx], f(expr) */ n = (handle_subscript(&p, &tv, TRUE, FALSE) == OK); if (n) clear_tv(&tv); } } if (*p != NUL) n = FALSE; vim_free(tofree); } rettv->vval.v_number = n; } #ifdef FEAT_FLOAT /* * "exp()" function */ static void f_exp(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = exp(f); else rettv->vval.v_float = 0.0; } #endif /* * "expand()" function */ static void f_expand(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *s; int len; char_u *errormsg; int options = WILD_SILENT|WILD_USE_NL|WILD_LIST_NOTFOUND; expand_T xpc; int error = FALSE; char_u *result; rettv->v_type = VAR_STRING; if (argvars[1].v_type != VAR_UNKNOWN && argvars[2].v_type != VAR_UNKNOWN && get_tv_number_chk(&argvars[2], &error) && !error) { rettv->v_type = VAR_LIST; rettv->vval.v_list = NULL; } s = get_tv_string(&argvars[0]); if (*s == '%' || *s == '#' || *s == '<') { ++emsg_off; result = eval_vars(s, s, &len, NULL, &errormsg, NULL); --emsg_off; if (rettv->v_type == VAR_LIST) { if (rettv_list_alloc(rettv) != FAIL && result != NULL) list_append_string(rettv->vval.v_list, result, -1); else vim_free(result); } else rettv->vval.v_string = result; } else { /* When the optional second argument is non-zero, don't remove matches * for 'wildignore' and don't put matches for 'suffixes' at the end. */ if (argvars[1].v_type != VAR_UNKNOWN && get_tv_number_chk(&argvars[1], &error)) options |= WILD_KEEP_ALL; if (!error) { ExpandInit(&xpc); xpc.xp_context = EXPAND_FILES; if (p_wic) options += WILD_ICASE; if (rettv->v_type == VAR_STRING) rettv->vval.v_string = ExpandOne(&xpc, s, NULL, options, WILD_ALL); else if (rettv_list_alloc(rettv) != FAIL) { int i; ExpandOne(&xpc, s, NULL, options, WILD_ALL_KEEP); for (i = 0; i < xpc.xp_numfiles; i++) list_append_string(rettv->vval.v_list, xpc.xp_files[i], -1); ExpandCleanup(&xpc); } } else rettv->vval.v_string = NULL; } } /* * Go over all entries in "d2" and add them to "d1". * When "action" is "error" then a duplicate key is an error. * When "action" is "force" then a duplicate key is overwritten. * Otherwise duplicate keys are ignored ("action" is "keep"). */ void dict_extend(d1, d2, action) dict_T *d1; dict_T *d2; char_u *action; { dictitem_T *di1; hashitem_T *hi2; int todo; char_u *arg_errmsg = (char_u *)N_("extend() argument"); todo = (int)d2->dv_hashtab.ht_used; for (hi2 = d2->dv_hashtab.ht_array; todo > 0; ++hi2) { if (!HASHITEM_EMPTY(hi2)) { --todo; di1 = dict_find(d1, hi2->hi_key, -1); if (d1->dv_scope != 0) { /* Disallow replacing a builtin function in l: and g:. * Check the key to be valid when adding to any * scope. */ if (d1->dv_scope == VAR_DEF_SCOPE && HI2DI(hi2)->di_tv.v_type == VAR_FUNC && var_check_func_name(hi2->hi_key, di1 == NULL)) break; if (!valid_varname(hi2->hi_key)) break; } if (di1 == NULL) { di1 = dictitem_copy(HI2DI(hi2)); if (di1 != NULL && dict_add(d1, di1) == FAIL) dictitem_free(di1); } else if (*action == 'e') { EMSG2(_("E737: Key already exists: %s"), hi2->hi_key); break; } else if (*action == 'f' && HI2DI(hi2) != di1) { if (tv_check_lock(di1->di_tv.v_lock, arg_errmsg, TRUE) || var_check_ro(di1->di_flags, arg_errmsg, TRUE)) break; clear_tv(&di1->di_tv); copy_tv(&HI2DI(hi2)->di_tv, &di1->di_tv); } } } } /* * "extend(list, list [, idx])" function * "extend(dict, dict [, action])" function */ static void f_extend(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *arg_errmsg = (char_u *)N_("extend() argument"); if (argvars[0].v_type == VAR_LIST && argvars[1].v_type == VAR_LIST) { list_T *l1, *l2; listitem_T *item; long before; int error = FALSE; l1 = argvars[0].vval.v_list; l2 = argvars[1].vval.v_list; if (l1 != NULL && !tv_check_lock(l1->lv_lock, arg_errmsg, TRUE) && l2 != NULL) { if (argvars[2].v_type != VAR_UNKNOWN) { before = get_tv_number_chk(&argvars[2], &error); if (error) return; /* type error; errmsg already given */ if (before == l1->lv_len) item = NULL; else { item = list_find(l1, before); if (item == NULL) { EMSGN(_(e_listidx), before); return; } } } else item = NULL; list_extend(l1, l2, item); copy_tv(&argvars[0], rettv); } } else if (argvars[0].v_type == VAR_DICT && argvars[1].v_type == VAR_DICT) { dict_T *d1, *d2; char_u *action; int i; d1 = argvars[0].vval.v_dict; d2 = argvars[1].vval.v_dict; if (d1 != NULL && !tv_check_lock(d1->dv_lock, arg_errmsg, TRUE) && d2 != NULL) { /* Check the third argument. */ if (argvars[2].v_type != VAR_UNKNOWN) { static char *(av[]) = {"keep", "force", "error"}; action = get_tv_string_chk(&argvars[2]); if (action == NULL) return; /* type error; errmsg already given */ for (i = 0; i < 3; ++i) if (STRCMP(action, av[i]) == 0) break; if (i == 3) { EMSG2(_(e_invarg2), action); return; } } else action = (char_u *)"force"; dict_extend(d1, d2, action); copy_tv(&argvars[0], rettv); } } else EMSG2(_(e_listdictarg), "extend()"); } /* * "feedkeys()" function */ static void f_feedkeys(argvars, rettv) typval_T *argvars; typval_T *rettv UNUSED; { int remap = TRUE; int insert = FALSE; char_u *keys, *flags; char_u nbuf[NUMBUFLEN]; int typed = FALSE; int execute = FALSE; char_u *keys_esc; /* This is not allowed in the sandbox. If the commands would still be * executed in the sandbox it would be OK, but it probably happens later, * when "sandbox" is no longer set. */ if (check_secure()) return; keys = get_tv_string(&argvars[0]); if (*keys != NUL) { if (argvars[1].v_type != VAR_UNKNOWN) { flags = get_tv_string_buf(&argvars[1], nbuf); for ( ; *flags != NUL; ++flags) { switch (*flags) { case 'n': remap = FALSE; break; case 'm': remap = TRUE; break; case 't': typed = TRUE; break; case 'i': insert = TRUE; break; case 'x': execute = TRUE; break; } } } /* Need to escape K_SPECIAL and CSI before putting the string in the * typeahead buffer. */ keys_esc = vim_strsave_escape_csi(keys); if (keys_esc != NULL) { ins_typebuf(keys_esc, (remap ? REMAP_YES : REMAP_NONE), insert ? 0 : typebuf.tb_len, !typed, FALSE); vim_free(keys_esc); if (vgetc_busy) typebuf_was_filled = TRUE; if (execute) exec_normal(TRUE); } } } /* * "filereadable()" function */ static void f_filereadable(argvars, rettv) typval_T *argvars; typval_T *rettv; { int fd; char_u *p; int n; #ifndef O_NONBLOCK # define O_NONBLOCK 0 #endif p = get_tv_string(&argvars[0]); if (*p && !mch_isdir(p) && (fd = mch_open((char *)p, O_RDONLY | O_NONBLOCK, 0)) >= 0) { n = TRUE; close(fd); } else n = FALSE; rettv->vval.v_number = n; } /* * Return 0 for not writable, 1 for writable file, 2 for a dir which we have * rights to write into. */ static void f_filewritable(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = filewritable(get_tv_string(&argvars[0])); } static void findfilendir(typval_T *argvars, typval_T *rettv, int find_what); static void findfilendir(argvars, rettv, find_what) typval_T *argvars UNUSED; typval_T *rettv; int find_what UNUSED; { #ifdef FEAT_SEARCHPATH char_u *fname; char_u *fresult = NULL; char_u *path = *curbuf->b_p_path == NUL ? p_path : curbuf->b_p_path; char_u *p; char_u pathbuf[NUMBUFLEN]; int count = 1; int first = TRUE; int error = FALSE; #endif rettv->vval.v_string = NULL; rettv->v_type = VAR_STRING; #ifdef FEAT_SEARCHPATH fname = get_tv_string(&argvars[0]); if (argvars[1].v_type != VAR_UNKNOWN) { p = get_tv_string_buf_chk(&argvars[1], pathbuf); if (p == NULL) error = TRUE; else { if (*p != NUL) path = p; if (argvars[2].v_type != VAR_UNKNOWN) count = get_tv_number_chk(&argvars[2], &error); } } if (count < 0 && rettv_list_alloc(rettv) == FAIL) error = TRUE; if (*fname != NUL && !error) { do { if (rettv->v_type == VAR_STRING || rettv->v_type == VAR_LIST) vim_free(fresult); fresult = find_file_in_path_option(first ? fname : NULL, first ? (int)STRLEN(fname) : 0, 0, first, path, find_what, curbuf->b_ffname, find_what == FINDFILE_DIR ? (char_u *)"" : curbuf->b_p_sua); first = FALSE; if (fresult != NULL && rettv->v_type == VAR_LIST) list_append_string(rettv->vval.v_list, fresult, -1); } while ((rettv->v_type == VAR_LIST || --count > 0) && fresult != NULL); } if (rettv->v_type == VAR_STRING) rettv->vval.v_string = fresult; #endif } static void filter_map(typval_T *argvars, typval_T *rettv, int map); static int filter_map_one(typval_T *tv, char_u *expr, int map, int *remp); /* * Implementation of map() and filter(). */ static void filter_map(argvars, rettv, map) typval_T *argvars; typval_T *rettv; int map; { char_u buf[NUMBUFLEN]; char_u *expr; listitem_T *li, *nli; list_T *l = NULL; dictitem_T *di; hashtab_T *ht; hashitem_T *hi; dict_T *d = NULL; typval_T save_val; typval_T save_key; int rem; int todo; char_u *ermsg = (char_u *)(map ? "map()" : "filter()"); char_u *arg_errmsg = (char_u *)(map ? N_("map() argument") : N_("filter() argument")); int save_did_emsg; int idx = 0; if (argvars[0].v_type == VAR_LIST) { if ((l = argvars[0].vval.v_list) == NULL || (!map && tv_check_lock(l->lv_lock, arg_errmsg, TRUE))) return; } else if (argvars[0].v_type == VAR_DICT) { if ((d = argvars[0].vval.v_dict) == NULL || (!map && tv_check_lock(d->dv_lock, arg_errmsg, TRUE))) return; } else { EMSG2(_(e_listdictarg), ermsg); return; } expr = get_tv_string_buf_chk(&argvars[1], buf); /* On type errors, the preceding call has already displayed an error * message. Avoid a misleading error message for an empty string that * was not passed as argument. */ if (expr != NULL) { prepare_vimvar(VV_VAL, &save_val); expr = skipwhite(expr); /* We reset "did_emsg" to be able to detect whether an error * occurred during evaluation of the expression. */ save_did_emsg = did_emsg; did_emsg = FALSE; prepare_vimvar(VV_KEY, &save_key); if (argvars[0].v_type == VAR_DICT) { vimvars[VV_KEY].vv_type = VAR_STRING; ht = &d->dv_hashtab; hash_lock(ht); todo = (int)ht->ht_used; for (hi = ht->ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { int r; --todo; di = HI2DI(hi); if (map && (tv_check_lock(di->di_tv.v_lock, arg_errmsg, TRUE) || var_check_ro(di->di_flags, arg_errmsg, TRUE))) break; vimvars[VV_KEY].vv_str = vim_strsave(di->di_key); r = filter_map_one(&di->di_tv, expr, map, &rem); clear_tv(&vimvars[VV_KEY].vv_tv); if (r == FAIL || did_emsg) break; if (!map && rem) { if (var_check_fixed(di->di_flags, arg_errmsg, TRUE) || var_check_ro(di->di_flags, arg_errmsg, TRUE)) break; dictitem_remove(d, di); } } } hash_unlock(ht); } else { vimvars[VV_KEY].vv_type = VAR_NUMBER; for (li = l->lv_first; li != NULL; li = nli) { if (map && tv_check_lock(li->li_tv.v_lock, arg_errmsg, TRUE)) break; nli = li->li_next; vimvars[VV_KEY].vv_nr = idx; if (filter_map_one(&li->li_tv, expr, map, &rem) == FAIL || did_emsg) break; if (!map && rem) listitem_remove(l, li); ++idx; } } restore_vimvar(VV_KEY, &save_key); restore_vimvar(VV_VAL, &save_val); did_emsg |= save_did_emsg; } copy_tv(&argvars[0], rettv); } static int filter_map_one(tv, expr, map, remp) typval_T *tv; char_u *expr; int map; int *remp; { typval_T rettv; char_u *s; int retval = FAIL; copy_tv(tv, &vimvars[VV_VAL].vv_tv); s = expr; if (eval1(&s, &rettv, TRUE) == FAIL) goto theend; if (*s != NUL) /* check for trailing chars after expr */ { EMSG2(_(e_invexpr2), s); clear_tv(&rettv); goto theend; } if (map) { /* map(): replace the list item value */ clear_tv(tv); rettv.v_lock = 0; *tv = rettv; } else { int error = FALSE; /* filter(): when expr is zero remove the item */ *remp = (get_tv_number_chk(&rettv, &error) == 0); clear_tv(&rettv); /* On type error, nothing has been removed; return FAIL to stop the * loop. The error message was given by get_tv_number_chk(). */ if (error) goto theend; } retval = OK; theend: clear_tv(&vimvars[VV_VAL].vv_tv); return retval; } /* * "filter()" function */ static void f_filter(argvars, rettv) typval_T *argvars; typval_T *rettv; { filter_map(argvars, rettv, FALSE); } /* * "finddir({fname}[, {path}[, {count}]])" function */ static void f_finddir(argvars, rettv) typval_T *argvars; typval_T *rettv; { findfilendir(argvars, rettv, FINDFILE_DIR); } /* * "findfile({fname}[, {path}[, {count}]])" function */ static void f_findfile(argvars, rettv) typval_T *argvars; typval_T *rettv; { findfilendir(argvars, rettv, FINDFILE_FILE); } #ifdef FEAT_FLOAT /* * "float2nr({float})" function */ static void f_float2nr(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; if (get_float_arg(argvars, &f) == OK) { if (f < -0x7fffffff) rettv->vval.v_number = -0x7fffffff; else if (f > 0x7fffffff) rettv->vval.v_number = 0x7fffffff; else rettv->vval.v_number = (varnumber_T)f; } } /* * "floor({float})" function */ static void f_floor(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = floor(f); else rettv->vval.v_float = 0.0; } /* * "fmod()" function */ static void f_fmod(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T fx, fy; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &fx) == OK && get_float_arg(&argvars[1], &fy) == OK) rettv->vval.v_float = fmod(fx, fy); else rettv->vval.v_float = 0.0; } #endif /* * "fnameescape({string})" function */ static void f_fnameescape(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_string = vim_strsave_fnameescape( get_tv_string(&argvars[0]), FALSE); rettv->v_type = VAR_STRING; } /* * "fnamemodify({fname}, {mods})" function */ static void f_fnamemodify(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *fname; char_u *mods; int usedlen = 0; int len; char_u *fbuf = NULL; char_u buf[NUMBUFLEN]; fname = get_tv_string_chk(&argvars[0]); mods = get_tv_string_buf_chk(&argvars[1], buf); if (fname == NULL || mods == NULL) fname = NULL; else { len = (int)STRLEN(fname); (void)modify_fname(mods, &usedlen, &fname, &fbuf, &len); } rettv->v_type = VAR_STRING; if (fname == NULL) rettv->vval.v_string = NULL; else rettv->vval.v_string = vim_strnsave(fname, len); vim_free(fbuf); } static void foldclosed_both(typval_T *argvars, typval_T *rettv, int end); /* * "foldclosed()" function */ static void foldclosed_both(argvars, rettv, end) typval_T *argvars UNUSED; typval_T *rettv; int end UNUSED; { #ifdef FEAT_FOLDING linenr_T lnum; linenr_T first, last; lnum = get_tv_lnum(argvars); if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) { if (hasFoldingWin(curwin, lnum, &first, &last, FALSE, NULL)) { if (end) rettv->vval.v_number = (varnumber_T)last; else rettv->vval.v_number = (varnumber_T)first; return; } } #endif rettv->vval.v_number = -1; } /* * "foldclosed()" function */ static void f_foldclosed(argvars, rettv) typval_T *argvars; typval_T *rettv; { foldclosed_both(argvars, rettv, FALSE); } /* * "foldclosedend()" function */ static void f_foldclosedend(argvars, rettv) typval_T *argvars; typval_T *rettv; { foldclosed_both(argvars, rettv, TRUE); } /* * "foldlevel()" function */ static void f_foldlevel(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_FOLDING linenr_T lnum; lnum = get_tv_lnum(argvars); if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) rettv->vval.v_number = foldLevel(lnum); #endif } /* * "foldtext()" function */ static void f_foldtext(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifdef FEAT_FOLDING linenr_T lnum; char_u *s; char_u *r; int len; char *txt; #endif rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_FOLDING if ((linenr_T)vimvars[VV_FOLDSTART].vv_nr > 0 && (linenr_T)vimvars[VV_FOLDEND].vv_nr <= curbuf->b_ml.ml_line_count && vimvars[VV_FOLDDASHES].vv_str != NULL) { /* Find first non-empty line in the fold. */ lnum = (linenr_T)vimvars[VV_FOLDSTART].vv_nr; while (lnum < (linenr_T)vimvars[VV_FOLDEND].vv_nr) { if (!linewhite(lnum)) break; ++lnum; } /* Find interesting text in this line. */ s = skipwhite(ml_get(lnum)); /* skip C comment-start */ if (s[0] == '/' && (s[1] == '*' || s[1] == '/')) { s = skipwhite(s + 2); if (*skipwhite(s) == NUL && lnum + 1 < (linenr_T)vimvars[VV_FOLDEND].vv_nr) { s = skipwhite(ml_get(lnum + 1)); if (*s == '*') s = skipwhite(s + 1); } } txt = _("+-%s%3ld lines: "); r = alloc((unsigned)(STRLEN(txt) + STRLEN(vimvars[VV_FOLDDASHES].vv_str) /* for %s */ + 20 /* for %3ld */ + STRLEN(s))); /* concatenated */ if (r != NULL) { sprintf((char *)r, txt, vimvars[VV_FOLDDASHES].vv_str, (long)((linenr_T)vimvars[VV_FOLDEND].vv_nr - (linenr_T)vimvars[VV_FOLDSTART].vv_nr + 1)); len = (int)STRLEN(r); STRCAT(r, s); /* remove 'foldmarker' and 'commentstring' */ foldtext_cleanup(r + len); rettv->vval.v_string = r; } } #endif } /* * "foldtextresult(lnum)" function */ static void f_foldtextresult(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifdef FEAT_FOLDING linenr_T lnum; char_u *text; char_u buf[51]; foldinfo_T foldinfo; int fold_count; #endif rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_FOLDING lnum = get_tv_lnum(argvars); /* treat illegal types and illegal string values for {lnum} the same */ if (lnum < 0) lnum = 0; fold_count = foldedCount(curwin, lnum, &foldinfo); if (fold_count > 0) { text = get_foldtext(curwin, lnum, lnum + fold_count - 1, &foldinfo, buf); if (text == buf) text = vim_strsave(text); rettv->vval.v_string = text; } #endif } /* * "foreground()" function */ static void f_foreground(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_GUI if (gui.in_use) gui_mch_set_foreground(); #else # ifdef WIN32 win32_set_foreground(); # endif #endif } /* * "function()" function */ static void f_function(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *s; s = get_tv_string(&argvars[0]); if (s == NULL || *s == NUL || VIM_ISDIGIT(*s)) EMSG2(_(e_invarg2), s); /* Don't check an autoload name for existence here. */ else if (vim_strchr(s, AUTOLOAD_CHAR) == NULL && !function_exists(s)) EMSG2(_("E700: Unknown function: %s"), s); else { if (STRNCMP(s, "s:", 2) == 0 || STRNCMP(s, "<SID>", 5) == 0) { char sid_buf[25]; int off = *s == 's' ? 2 : 5; /* Expand s: and <SID> into <SNR>nr_, so that the function can * also be called from another script. Using trans_function_name() * would also work, but some plugins depend on the name being * printable text. */ sprintf(sid_buf, "<SNR>%ld_", (long)current_SID); rettv->vval.v_string = alloc((int)(STRLEN(sid_buf) + STRLEN(s + off) + 1)); if (rettv->vval.v_string != NULL) { STRCPY(rettv->vval.v_string, sid_buf); STRCAT(rettv->vval.v_string, s + off); } } else rettv->vval.v_string = vim_strsave(s); rettv->v_type = VAR_FUNC; } } /* * "garbagecollect()" function */ static void f_garbagecollect(argvars, rettv) typval_T *argvars; typval_T *rettv UNUSED; { /* This is postponed until we are back at the toplevel, because we may be * using Lists and Dicts internally. E.g.: ":echo [garbagecollect()]". */ want_garbage_collect = TRUE; if (argvars[0].v_type != VAR_UNKNOWN && get_tv_number(&argvars[0]) == 1) garbage_collect_at_exit = TRUE; } /* * "get()" function */ static void f_get(argvars, rettv) typval_T *argvars; typval_T *rettv; { listitem_T *li; list_T *l; dictitem_T *di; dict_T *d; typval_T *tv = NULL; if (argvars[0].v_type == VAR_LIST) { if ((l = argvars[0].vval.v_list) != NULL) { int error = FALSE; li = list_find(l, get_tv_number_chk(&argvars[1], &error)); if (!error && li != NULL) tv = &li->li_tv; } } else if (argvars[0].v_type == VAR_DICT) { if ((d = argvars[0].vval.v_dict) != NULL) { di = dict_find(d, get_tv_string(&argvars[1]), -1); if (di != NULL) tv = &di->di_tv; } } else EMSG2(_(e_listdictarg), "get()"); if (tv == NULL) { if (argvars[2].v_type != VAR_UNKNOWN) copy_tv(&argvars[2], rettv); } else copy_tv(tv, rettv); } static void get_buffer_lines(buf_T *buf, linenr_T start, linenr_T end, int retlist, typval_T *rettv); /* * Get line or list of lines from buffer "buf" into "rettv". * Return a range (from start to end) of lines in rettv from the specified * buffer. * If 'retlist' is TRUE, then the lines are returned as a Vim List. */ static void get_buffer_lines(buf, start, end, retlist, rettv) buf_T *buf; linenr_T start; linenr_T end; int retlist; typval_T *rettv; { char_u *p; rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; if (retlist && rettv_list_alloc(rettv) == FAIL) return; if (buf == NULL || buf->b_ml.ml_mfp == NULL || start < 0) return; if (!retlist) { if (start >= 1 && start <= buf->b_ml.ml_line_count) p = ml_get_buf(buf, start, FALSE); else p = (char_u *)""; rettv->vval.v_string = vim_strsave(p); } else { if (end < start) return; if (start < 1) start = 1; if (end > buf->b_ml.ml_line_count) end = buf->b_ml.ml_line_count; while (start <= end) if (list_append_string(rettv->vval.v_list, ml_get_buf(buf, start++, FALSE), -1) == FAIL) break; } } /* * "getbufline()" function */ static void f_getbufline(argvars, rettv) typval_T *argvars; typval_T *rettv; { linenr_T lnum; linenr_T end; buf_T *buf; (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */ ++emsg_off; buf = get_buf_tv(&argvars[0], FALSE); --emsg_off; lnum = get_tv_lnum_buf(&argvars[1], buf); if (argvars[2].v_type == VAR_UNKNOWN) end = lnum; else end = get_tv_lnum_buf(&argvars[2], buf); get_buffer_lines(buf, lnum, end, TRUE, rettv); } /* * "getbufvar()" function */ static void f_getbufvar(argvars, rettv) typval_T *argvars; typval_T *rettv; { buf_T *buf; buf_T *save_curbuf; char_u *varname; dictitem_T *v; int done = FALSE; (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */ varname = get_tv_string_chk(&argvars[1]); ++emsg_off; buf = get_buf_tv(&argvars[0], FALSE); rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; if (buf != NULL && varname != NULL) { /* set curbuf to be our buf, temporarily */ save_curbuf = curbuf; curbuf = buf; if (*varname == '&') /* buffer-local-option */ { if (get_option_tv(&varname, rettv, TRUE) == OK) done = TRUE; } else if (STRCMP(varname, "changedtick") == 0) { rettv->v_type = VAR_NUMBER; rettv->vval.v_number = curbuf->b_changedtick; done = TRUE; } else { /* Look up the variable. */ /* Let getbufvar({nr}, "") return the "b:" dictionary. */ v = find_var_in_ht(&curbuf->b_vars->dv_hashtab, 'b', varname, FALSE); if (v != NULL) { copy_tv(&v->di_tv, rettv); done = TRUE; } } /* restore previous notion of curbuf */ curbuf = save_curbuf; } if (!done && argvars[2].v_type != VAR_UNKNOWN) /* use the default value */ copy_tv(&argvars[2], rettv); --emsg_off; } /* * "getchar()" function */ static void f_getchar(argvars, rettv) typval_T *argvars; typval_T *rettv; { varnumber_T n; int error = FALSE; /* Position the cursor. Needed after a message that ends in a space. */ windgoto(msg_row, msg_col); ++no_mapping; ++allow_keys; for (;;) { if (argvars[0].v_type == VAR_UNKNOWN) /* getchar(): blocking wait. */ n = safe_vgetc(); else if (get_tv_number_chk(&argvars[0], &error) == 1) /* getchar(1): only check if char avail */ n = vpeekc_any(); else if (error || vpeekc_any() == NUL) /* illegal argument or getchar(0) and no char avail: return zero */ n = 0; else /* getchar(0) and char avail: return char */ n = safe_vgetc(); if (n == K_IGNORE) continue; break; } --no_mapping; --allow_keys; vimvars[VV_MOUSE_WIN].vv_nr = 0; vimvars[VV_MOUSE_LNUM].vv_nr = 0; vimvars[VV_MOUSE_COL].vv_nr = 0; rettv->vval.v_number = n; if (IS_SPECIAL(n) || mod_mask != 0) { char_u temp[10]; /* modifier: 3, mbyte-char: 6, NUL: 1 */ int i = 0; /* Turn a special key into three bytes, plus modifier. */ if (mod_mask != 0) { temp[i++] = K_SPECIAL; temp[i++] = KS_MODIFIER; temp[i++] = mod_mask; } if (IS_SPECIAL(n)) { temp[i++] = K_SPECIAL; temp[i++] = K_SECOND(n); temp[i++] = K_THIRD(n); } #ifdef FEAT_MBYTE else if (has_mbyte) i += (*mb_char2bytes)(n, temp + i); #endif else temp[i++] = n; temp[i++] = NUL; rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_strsave(temp); #ifdef FEAT_MOUSE if (is_mouse_key(n)) { int row = mouse_row; int col = mouse_col; win_T *win; linenr_T lnum; # ifdef FEAT_WINDOWS win_T *wp; # endif int winnr = 1; if (row >= 0 && col >= 0) { /* Find the window at the mouse coordinates and compute the * text position. */ win = mouse_find_win(&row, &col); (void)mouse_comp_pos(win, &row, &col, &lnum); # ifdef FEAT_WINDOWS for (wp = firstwin; wp != win; wp = wp->w_next) ++winnr; # endif vimvars[VV_MOUSE_WIN].vv_nr = winnr; vimvars[VV_MOUSE_LNUM].vv_nr = lnum; vimvars[VV_MOUSE_COL].vv_nr = col + 1; } } #endif } } /* * "getcharmod()" function */ static void f_getcharmod(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->vval.v_number = mod_mask; } /* * "getcharsearch()" function */ static void f_getcharsearch(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { if (rettv_dict_alloc(rettv) != FAIL) { dict_T *dict = rettv->vval.v_dict; dict_add_nr_str(dict, "char", 0L, last_csearch()); dict_add_nr_str(dict, "forward", last_csearch_forward(), NULL); dict_add_nr_str(dict, "until", last_csearch_until(), NULL); } } /* * "getcmdline()" function */ static void f_getcmdline(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = get_cmdline_str(); } /* * "getcmdpos()" function */ static void f_getcmdpos(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->vval.v_number = get_cmdline_pos() + 1; } /* * "getcmdtype()" function */ static void f_getcmdtype(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = alloc(2); if (rettv->vval.v_string != NULL) { rettv->vval.v_string[0] = get_cmdline_type(); rettv->vval.v_string[1] = NUL; } } /* * "getcmdwintype()" function */ static void f_getcmdwintype(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_CMDWIN rettv->vval.v_string = alloc(2); if (rettv->vval.v_string != NULL) { rettv->vval.v_string[0] = cmdwin_type; rettv->vval.v_string[1] = NUL; } #endif } /* * "getcwd()" function */ static void f_getcwd(argvars, rettv) typval_T *argvars; typval_T *rettv; { win_T *wp = NULL; char_u *cwd; rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; wp = find_tabwin(&argvars[0], &argvars[1]); if (wp != NULL) { if (wp->w_localdir != NULL) rettv->vval.v_string = vim_strsave(wp->w_localdir); else if(globaldir != NULL) rettv->vval.v_string = vim_strsave(globaldir); else { cwd = alloc(MAXPATHL); if (cwd != NULL) { if (mch_dirname(cwd, MAXPATHL) != FAIL) rettv->vval.v_string = vim_strsave(cwd); vim_free(cwd); } } #ifdef BACKSLASH_IN_FILENAME if (rettv->vval.v_string != NULL) slash_adjust(rettv->vval.v_string); #endif } } /* * "getfontname()" function */ static void f_getfontname(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_GUI if (gui.in_use) { GuiFont font; char_u *name = NULL; if (argvars[0].v_type == VAR_UNKNOWN) { /* Get the "Normal" font. Either the name saved by * hl_set_font_name() or from the font ID. */ font = gui.norm_font; name = hl_get_font_name(); } else { name = get_tv_string(&argvars[0]); if (STRCMP(name, "*") == 0) /* don't use font dialog */ return; font = gui_mch_get_font(name, FALSE); if (font == NOFONT) return; /* Invalid font name, return empty string. */ } rettv->vval.v_string = gui_mch_get_fontname(font, name); if (argvars[0].v_type != VAR_UNKNOWN) gui_mch_free_font(font); } #endif } /* * "getfperm({fname})" function */ static void f_getfperm(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *fname; struct stat st; char_u *perm = NULL; char_u flags[] = "rwx"; int i; fname = get_tv_string(&argvars[0]); rettv->v_type = VAR_STRING; if (mch_stat((char *)fname, &st) >= 0) { perm = vim_strsave((char_u *)"---------"); if (perm != NULL) { for (i = 0; i < 9; i++) { if (st.st_mode & (1 << (8 - i))) perm[i] = flags[i % 3]; } } } rettv->vval.v_string = perm; } /* * "getfsize({fname})" function */ static void f_getfsize(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *fname; struct stat st; fname = get_tv_string(&argvars[0]); rettv->v_type = VAR_NUMBER; if (mch_stat((char *)fname, &st) >= 0) { if (mch_isdir(fname)) rettv->vval.v_number = 0; else { rettv->vval.v_number = (varnumber_T)st.st_size; /* non-perfect check for overflow */ if ((off_t)rettv->vval.v_number != (off_t)st.st_size) rettv->vval.v_number = -2; } } else rettv->vval.v_number = -1; } /* * "getftime({fname})" function */ static void f_getftime(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *fname; struct stat st; fname = get_tv_string(&argvars[0]); if (mch_stat((char *)fname, &st) >= 0) rettv->vval.v_number = (varnumber_T)st.st_mtime; else rettv->vval.v_number = -1; } /* * "getftype({fname})" function */ static void f_getftype(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *fname; struct stat st; char_u *type = NULL; char *t; fname = get_tv_string(&argvars[0]); rettv->v_type = VAR_STRING; if (mch_lstat((char *)fname, &st) >= 0) { #ifdef S_ISREG if (S_ISREG(st.st_mode)) t = "file"; else if (S_ISDIR(st.st_mode)) t = "dir"; # ifdef S_ISLNK else if (S_ISLNK(st.st_mode)) t = "link"; # endif # ifdef S_ISBLK else if (S_ISBLK(st.st_mode)) t = "bdev"; # endif # ifdef S_ISCHR else if (S_ISCHR(st.st_mode)) t = "cdev"; # endif # ifdef S_ISFIFO else if (S_ISFIFO(st.st_mode)) t = "fifo"; # endif # ifdef S_ISSOCK else if (S_ISSOCK(st.st_mode)) t = "fifo"; # endif else t = "other"; #else # ifdef S_IFMT switch (st.st_mode & S_IFMT) { case S_IFREG: t = "file"; break; case S_IFDIR: t = "dir"; break; # ifdef S_IFLNK case S_IFLNK: t = "link"; break; # endif # ifdef S_IFBLK case S_IFBLK: t = "bdev"; break; # endif # ifdef S_IFCHR case S_IFCHR: t = "cdev"; break; # endif # ifdef S_IFIFO case S_IFIFO: t = "fifo"; break; # endif # ifdef S_IFSOCK case S_IFSOCK: t = "socket"; break; # endif default: t = "other"; } # else if (mch_isdir(fname)) t = "dir"; else t = "file"; # endif #endif type = vim_strsave((char_u *)t); } rettv->vval.v_string = type; } /* * "getline(lnum, [end])" function */ static void f_getline(argvars, rettv) typval_T *argvars; typval_T *rettv; { linenr_T lnum; linenr_T end; int retlist; lnum = get_tv_lnum(argvars); if (argvars[1].v_type == VAR_UNKNOWN) { end = 0; retlist = FALSE; } else { end = get_tv_lnum(&argvars[1]); retlist = TRUE; } get_buffer_lines(curbuf, lnum, end, retlist, rettv); } /* * "getmatches()" function */ static void f_getmatches(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_SEARCH_EXTRA dict_T *dict; matchitem_T *cur = curwin->w_match_head; int i; if (rettv_list_alloc(rettv) == OK) { while (cur != NULL) { dict = dict_alloc(); if (dict == NULL) return; if (cur->match.regprog == NULL) { /* match added with matchaddpos() */ for (i = 0; i < MAXPOSMATCH; ++i) { llpos_T *llpos; char buf[6]; list_T *l; llpos = &cur->pos.pos[i]; if (llpos->lnum == 0) break; l = list_alloc(); if (l == NULL) break; list_append_number(l, (varnumber_T)llpos->lnum); if (llpos->col > 0) { list_append_number(l, (varnumber_T)llpos->col); list_append_number(l, (varnumber_T)llpos->len); } sprintf(buf, "pos%d", i + 1); dict_add_list(dict, buf, l); } } else { dict_add_nr_str(dict, "pattern", 0L, cur->pattern); } dict_add_nr_str(dict, "group", 0L, syn_id2name(cur->hlg_id)); dict_add_nr_str(dict, "priority", (long)cur->priority, NULL); dict_add_nr_str(dict, "id", (long)cur->id, NULL); # ifdef FEAT_CONCEAL if (cur->conceal_char) { char_u buf[MB_MAXBYTES + 1]; buf[(*mb_char2bytes)((int)cur->conceal_char, buf)] = NUL; dict_add_nr_str(dict, "conceal", 0L, (char_u *)&buf); } # endif list_append_dict(rettv->vval.v_list, dict); cur = cur->next; } } #endif } /* * "getpid()" function */ static void f_getpid(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->vval.v_number = mch_get_pid(); } static void getpos_both(typval_T *argvars, typval_T *rettv, int getcurpos); /* * "getcurpos()" function */ static void f_getcurpos(argvars, rettv) typval_T *argvars; typval_T *rettv; { getpos_both(argvars, rettv, TRUE); } /* * "getpos(string)" function */ static void f_getpos(argvars, rettv) typval_T *argvars; typval_T *rettv; { getpos_both(argvars, rettv, FALSE); } static void getpos_both(argvars, rettv, getcurpos) typval_T *argvars; typval_T *rettv; int getcurpos; { pos_T *fp; list_T *l; int fnum = -1; if (rettv_list_alloc(rettv) == OK) { l = rettv->vval.v_list; if (getcurpos) fp = &curwin->w_cursor; else fp = var2fpos(&argvars[0], TRUE, &fnum); if (fnum != -1) list_append_number(l, (varnumber_T)fnum); else list_append_number(l, (varnumber_T)0); list_append_number(l, (fp != NULL) ? (varnumber_T)fp->lnum : (varnumber_T)0); list_append_number(l, (fp != NULL) ? (varnumber_T)(fp->col == MAXCOL ? MAXCOL : fp->col + 1) : (varnumber_T)0); list_append_number(l, #ifdef FEAT_VIRTUALEDIT (fp != NULL) ? (varnumber_T)fp->coladd : #endif (varnumber_T)0); if (getcurpos) list_append_number(l, curwin->w_curswant == MAXCOL ? (varnumber_T)MAXCOL : (varnumber_T)curwin->w_curswant + 1); } else rettv->vval.v_number = FALSE; } /* * "getqflist()" and "getloclist()" functions */ static void f_getqflist(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_QUICKFIX win_T *wp; #endif #ifdef FEAT_QUICKFIX if (rettv_list_alloc(rettv) == OK) { wp = NULL; if (argvars[0].v_type != VAR_UNKNOWN) /* getloclist() */ { wp = find_win_by_nr(&argvars[0], NULL); if (wp == NULL) return; } (void)get_errorlist(wp, rettv->vval.v_list); } #endif } /* * "getreg()" function */ static void f_getreg(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *strregname; int regname; int arg2 = FALSE; int return_list = FALSE; int error = FALSE; if (argvars[0].v_type != VAR_UNKNOWN) { strregname = get_tv_string_chk(&argvars[0]); error = strregname == NULL; if (argvars[1].v_type != VAR_UNKNOWN) { arg2 = get_tv_number_chk(&argvars[1], &error); if (!error && argvars[2].v_type != VAR_UNKNOWN) return_list = get_tv_number_chk(&argvars[2], &error); } } else strregname = vimvars[VV_REG].vv_str; if (error) return; regname = (strregname == NULL ? '"' : *strregname); if (regname == 0) regname = '"'; if (return_list) { rettv->v_type = VAR_LIST; rettv->vval.v_list = (list_T *)get_reg_contents(regname, (arg2 ? GREG_EXPR_SRC : 0) | GREG_LIST); if (rettv->vval.v_list != NULL) ++rettv->vval.v_list->lv_refcount; } else { rettv->v_type = VAR_STRING; rettv->vval.v_string = get_reg_contents(regname, arg2 ? GREG_EXPR_SRC : 0); } } /* * "getregtype()" function */ static void f_getregtype(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *strregname; int regname; char_u buf[NUMBUFLEN + 2]; long reglen = 0; if (argvars[0].v_type != VAR_UNKNOWN) { strregname = get_tv_string_chk(&argvars[0]); if (strregname == NULL) /* type error; errmsg already given */ { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; return; } } else /* Default to v:register */ strregname = vimvars[VV_REG].vv_str; regname = (strregname == NULL ? '"' : *strregname); if (regname == 0) regname = '"'; buf[0] = NUL; buf[1] = NUL; switch (get_reg_type(regname, ®len)) { case MLINE: buf[0] = 'V'; break; case MCHAR: buf[0] = 'v'; break; case MBLOCK: buf[0] = Ctrl_V; sprintf((char *)buf + 1, "%ld", reglen + 1); break; } rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_strsave(buf); } /* * "gettabvar()" function */ static void f_gettabvar(argvars, rettv) typval_T *argvars; typval_T *rettv; { win_T *oldcurwin; tabpage_T *tp, *oldtabpage; dictitem_T *v; char_u *varname; int done = FALSE; rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; varname = get_tv_string_chk(&argvars[1]); tp = find_tabpage((int)get_tv_number_chk(&argvars[0], NULL)); if (tp != NULL && varname != NULL) { /* Set tp to be our tabpage, temporarily. Also set the window to the * first window in the tabpage, otherwise the window is not valid. */ if (switch_win(&oldcurwin, &oldtabpage, tp->tp_firstwin == NULL ? firstwin : tp->tp_firstwin, tp, TRUE) == OK) { /* look up the variable */ /* Let gettabvar({nr}, "") return the "t:" dictionary. */ v = find_var_in_ht(&tp->tp_vars->dv_hashtab, 't', varname, FALSE); if (v != NULL) { copy_tv(&v->di_tv, rettv); done = TRUE; } } /* restore previous notion of curwin */ restore_win(oldcurwin, oldtabpage, TRUE); } if (!done && argvars[2].v_type != VAR_UNKNOWN) copy_tv(&argvars[2], rettv); } /* * "gettabwinvar()" function */ static void f_gettabwinvar(argvars, rettv) typval_T *argvars; typval_T *rettv; { getwinvar(argvars, rettv, 1); } /* * "getwinposx()" function */ static void f_getwinposx(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->vval.v_number = -1; #ifdef FEAT_GUI if (gui.in_use) { int x, y; if (gui_mch_get_winpos(&x, &y) == OK) rettv->vval.v_number = x; } #endif } /* * "getwinposy()" function */ static void f_getwinposy(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->vval.v_number = -1; #ifdef FEAT_GUI if (gui.in_use) { int x, y; if (gui_mch_get_winpos(&x, &y) == OK) rettv->vval.v_number = y; } #endif } /* * Find window specified by "vp" in tabpage "tp". */ static win_T * find_win_by_nr(vp, tp) typval_T *vp; tabpage_T *tp UNUSED; /* NULL for current tab page */ { #ifdef FEAT_WINDOWS win_T *wp; #endif int nr; nr = get_tv_number_chk(vp, NULL); #ifdef FEAT_WINDOWS if (nr < 0) return NULL; if (nr == 0) return curwin; for (wp = (tp == NULL || tp == curtab) ? firstwin : tp->tp_firstwin; wp != NULL; wp = wp->w_next) if (--nr <= 0) break; return wp; #else if (nr == 0 || nr == 1) return curwin; return NULL; #endif } /* * Find window specified by "wvp" in tabpage "tvp". */ static win_T * find_tabwin(wvp, tvp) typval_T *wvp; /* VAR_UNKNOWN for current window */ typval_T *tvp; /* VAR_UNKNOWN for current tab page */ { win_T *wp = NULL; tabpage_T *tp = NULL; long n; if (wvp->v_type != VAR_UNKNOWN) { if (tvp->v_type != VAR_UNKNOWN) { n = get_tv_number(tvp); if (n >= 0) tp = find_tabpage(n); } else tp = curtab; if (tp != NULL) wp = find_win_by_nr(wvp, tp); } else wp = curwin; return wp; } /* * "getwinvar()" function */ static void f_getwinvar(argvars, rettv) typval_T *argvars; typval_T *rettv; { getwinvar(argvars, rettv, 0); } /* * getwinvar() and gettabwinvar() */ static void getwinvar(argvars, rettv, off) typval_T *argvars; typval_T *rettv; int off; /* 1 for gettabwinvar() */ { win_T *win; char_u *varname; dictitem_T *v; tabpage_T *tp = NULL; int done = FALSE; #ifdef FEAT_WINDOWS win_T *oldcurwin; tabpage_T *oldtabpage; int need_switch_win; #endif #ifdef FEAT_WINDOWS if (off == 1) tp = find_tabpage((int)get_tv_number_chk(&argvars[0], NULL)); else tp = curtab; #endif win = find_win_by_nr(&argvars[off], tp); varname = get_tv_string_chk(&argvars[off + 1]); ++emsg_off; rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; if (win != NULL && varname != NULL) { #ifdef FEAT_WINDOWS /* Set curwin to be our win, temporarily. Also set the tabpage, * otherwise the window is not valid. Only do this when needed, * autocommands get blocked. */ need_switch_win = !(tp == curtab && win == curwin); if (!need_switch_win || switch_win(&oldcurwin, &oldtabpage, win, tp, TRUE) == OK) #endif { if (*varname == '&') /* window-local-option */ { if (get_option_tv(&varname, rettv, 1) == OK) done = TRUE; } else { /* Look up the variable. */ /* Let getwinvar({nr}, "") return the "w:" dictionary. */ v = find_var_in_ht(&win->w_vars->dv_hashtab, 'w', varname, FALSE); if (v != NULL) { copy_tv(&v->di_tv, rettv); done = TRUE; } } } #ifdef FEAT_WINDOWS if (need_switch_win) /* restore previous notion of curwin */ restore_win(oldcurwin, oldtabpage, TRUE); #endif } if (!done && argvars[off + 2].v_type != VAR_UNKNOWN) /* use the default return value */ copy_tv(&argvars[off + 2], rettv); --emsg_off; } /* * "glob()" function */ static void f_glob(argvars, rettv) typval_T *argvars; typval_T *rettv; { int options = WILD_SILENT|WILD_USE_NL; expand_T xpc; int error = FALSE; /* When the optional second argument is non-zero, don't remove matches * for 'wildignore' and don't put matches for 'suffixes' at the end. */ rettv->v_type = VAR_STRING; if (argvars[1].v_type != VAR_UNKNOWN) { if (get_tv_number_chk(&argvars[1], &error)) options |= WILD_KEEP_ALL; if (argvars[2].v_type != VAR_UNKNOWN) { if (get_tv_number_chk(&argvars[2], &error)) { rettv->v_type = VAR_LIST; rettv->vval.v_list = NULL; } if (argvars[3].v_type != VAR_UNKNOWN && get_tv_number_chk(&argvars[3], &error)) options |= WILD_ALLLINKS; } } if (!error) { ExpandInit(&xpc); xpc.xp_context = EXPAND_FILES; if (p_wic) options += WILD_ICASE; if (rettv->v_type == VAR_STRING) rettv->vval.v_string = ExpandOne(&xpc, get_tv_string(&argvars[0]), NULL, options, WILD_ALL); else if (rettv_list_alloc(rettv) != FAIL) { int i; ExpandOne(&xpc, get_tv_string(&argvars[0]), NULL, options, WILD_ALL_KEEP); for (i = 0; i < xpc.xp_numfiles; i++) list_append_string(rettv->vval.v_list, xpc.xp_files[i], -1); ExpandCleanup(&xpc); } } else rettv->vval.v_string = NULL; } /* * "globpath()" function */ static void f_globpath(argvars, rettv) typval_T *argvars; typval_T *rettv; { int flags = 0; char_u buf1[NUMBUFLEN]; char_u *file = get_tv_string_buf_chk(&argvars[1], buf1); int error = FALSE; garray_T ga; int i; /* When the optional second argument is non-zero, don't remove matches * for 'wildignore' and don't put matches for 'suffixes' at the end. */ rettv->v_type = VAR_STRING; if (argvars[2].v_type != VAR_UNKNOWN) { if (get_tv_number_chk(&argvars[2], &error)) flags |= WILD_KEEP_ALL; if (argvars[3].v_type != VAR_UNKNOWN) { if (get_tv_number_chk(&argvars[3], &error)) { rettv->v_type = VAR_LIST; rettv->vval.v_list = NULL; } if (argvars[4].v_type != VAR_UNKNOWN && get_tv_number_chk(&argvars[4], &error)) flags |= WILD_ALLLINKS; } } if (file != NULL && !error) { ga_init2(&ga, (int)sizeof(char_u *), 10); globpath(get_tv_string(&argvars[0]), file, &ga, flags); if (rettv->v_type == VAR_STRING) rettv->vval.v_string = ga_concat_strings(&ga, "\n"); else if (rettv_list_alloc(rettv) != FAIL) for (i = 0; i < ga.ga_len; ++i) list_append_string(rettv->vval.v_list, ((char_u **)(ga.ga_data))[i], -1); ga_clear_strings(&ga); } else rettv->vval.v_string = NULL; } /* * "glob2regpat()" function */ static void f_glob2regpat(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *pat = get_tv_string_chk(&argvars[0]); rettv->v_type = VAR_STRING; rettv->vval.v_string = (pat == NULL) ? NULL : file_pat_to_reg_pat(pat, NULL, NULL, FALSE); } /* * "has()" function */ static void f_has(argvars, rettv) typval_T *argvars; typval_T *rettv; { int i; char_u *name; int n = FALSE; static char *(has_list[]) = { #ifdef AMIGA "amiga", # ifdef FEAT_ARP "arp", # endif #endif #ifdef __BEOS__ "beos", #endif #ifdef MSDOS # ifdef DJGPP "dos32", # else "dos16", # endif #endif #ifdef MACOS "mac", #endif #if defined(MACOS_X_UNIX) "macunix", #endif #ifdef __QNX__ "qnx", #endif #ifdef UNIX "unix", #endif #ifdef VMS "vms", #endif #ifdef WIN16 "win16", #endif #ifdef WIN32 "win32", #endif #if defined(UNIX) && (defined(__CYGWIN32__) || defined(__CYGWIN__)) "win32unix", #endif #if defined(WIN64) || defined(_WIN64) "win64", #endif #ifdef EBCDIC "ebcdic", #endif #ifndef CASE_INSENSITIVE_FILENAME "fname_case", #endif #ifdef HAVE_ACL "acl", #endif #ifdef FEAT_ARABIC "arabic", #endif #ifdef FEAT_AUTOCMD "autocmd", #endif #ifdef FEAT_BEVAL "balloon_eval", # ifndef FEAT_GUI_W32 /* other GUIs always have multiline balloons */ "balloon_multiline", # endif #endif #if defined(SOME_BUILTIN_TCAPS) || defined(ALL_BUILTIN_TCAPS) "builtin_terms", # ifdef ALL_BUILTIN_TCAPS "all_builtin_terms", # endif #endif #if defined(FEAT_BROWSE) && (defined(USE_FILE_CHOOSER) \ || defined(FEAT_GUI_W32) \ || defined(FEAT_GUI_MOTIF)) "browsefilter", #endif #ifdef FEAT_BYTEOFF "byte_offset", #endif #ifdef FEAT_CHANNEL "channel", #endif #ifdef FEAT_CINDENT "cindent", #endif #ifdef FEAT_CLIENTSERVER "clientserver", #endif #ifdef FEAT_CLIPBOARD "clipboard", #endif #ifdef FEAT_CMDL_COMPL "cmdline_compl", #endif #ifdef FEAT_CMDHIST "cmdline_hist", #endif #ifdef FEAT_COMMENTS "comments", #endif #ifdef FEAT_CONCEAL "conceal", #endif #ifdef FEAT_CRYPT "cryptv", "crypt-blowfish", "crypt-blowfish2", #endif #ifdef FEAT_CSCOPE "cscope", #endif #ifdef FEAT_CURSORBIND "cursorbind", #endif #ifdef CURSOR_SHAPE "cursorshape", #endif #ifdef DEBUG "debug", #endif #ifdef FEAT_CON_DIALOG "dialog_con", #endif #ifdef FEAT_GUI_DIALOG "dialog_gui", #endif #ifdef FEAT_DIFF "diff", #endif #ifdef FEAT_DIGRAPHS "digraphs", #endif #ifdef FEAT_DIRECTX "directx", #endif #ifdef FEAT_DND "dnd", #endif #ifdef FEAT_EMACS_TAGS "emacs_tags", #endif "eval", /* always present, of course! */ #ifdef FEAT_EX_EXTRA "ex_extra", #endif #ifdef FEAT_SEARCH_EXTRA "extra_search", #endif #ifdef FEAT_FKMAP "farsi", #endif #ifdef FEAT_SEARCHPATH "file_in_path", #endif #ifdef FEAT_FILTERPIPE "filterpipe", #endif #ifdef FEAT_FIND_ID "find_in_path", #endif #ifdef FEAT_FLOAT "float", #endif #ifdef FEAT_FOLDING "folding", #endif #ifdef FEAT_FOOTER "footer", #endif #if !defined(USE_SYSTEM) && defined(UNIX) "fork", #endif #ifdef FEAT_GETTEXT "gettext", #endif #ifdef FEAT_GUI "gui", #endif #ifdef FEAT_GUI_ATHENA # ifdef FEAT_GUI_NEXTAW "gui_neXtaw", # else "gui_athena", # endif #endif #ifdef FEAT_GUI_GTK "gui_gtk", "gui_gtk2", #endif #ifdef FEAT_GUI_GNOME "gui_gnome", #endif #ifdef FEAT_GUI_MAC "gui_mac", #endif #ifdef FEAT_GUI_MOTIF "gui_motif", #endif #ifdef FEAT_GUI_PHOTON "gui_photon", #endif #ifdef FEAT_GUI_W16 "gui_win16", #endif #ifdef FEAT_GUI_W32 "gui_win32", #endif #ifdef FEAT_HANGULIN "hangul_input", #endif #if defined(HAVE_ICONV_H) && defined(USE_ICONV) "iconv", #endif #ifdef FEAT_INS_EXPAND "insert_expand", #endif #ifdef FEAT_JUMPLIST "jumplist", #endif #ifdef FEAT_KEYMAP "keymap", #endif #ifdef FEAT_LANGMAP "langmap", #endif #ifdef FEAT_LIBCALL "libcall", #endif #ifdef FEAT_LINEBREAK "linebreak", #endif #ifdef FEAT_LISP "lispindent", #endif #ifdef FEAT_LISTCMDS "listcmds", #endif #ifdef FEAT_LOCALMAP "localmap", #endif #ifdef FEAT_LUA # ifndef DYNAMIC_LUA "lua", # endif #endif #ifdef FEAT_MENU "menu", #endif #ifdef FEAT_SESSION "mksession", #endif #ifdef FEAT_MODIFY_FNAME "modify_fname", #endif #ifdef FEAT_MOUSE "mouse", #endif #ifdef FEAT_MOUSESHAPE "mouseshape", #endif #if defined(UNIX) || defined(VMS) # ifdef FEAT_MOUSE_DEC "mouse_dec", # endif # ifdef FEAT_MOUSE_GPM "mouse_gpm", # endif # ifdef FEAT_MOUSE_JSB "mouse_jsbterm", # endif # ifdef FEAT_MOUSE_NET "mouse_netterm", # endif # ifdef FEAT_MOUSE_PTERM "mouse_pterm", # endif # ifdef FEAT_MOUSE_SGR "mouse_sgr", # endif # ifdef FEAT_SYSMOUSE "mouse_sysmouse", # endif # ifdef FEAT_MOUSE_URXVT "mouse_urxvt", # endif # ifdef FEAT_MOUSE_XTERM "mouse_xterm", # endif #endif #ifdef FEAT_MBYTE "multi_byte", #endif #ifdef FEAT_MBYTE_IME "multi_byte_ime", #endif #ifdef FEAT_MULTI_LANG "multi_lang", #endif #ifdef FEAT_MZSCHEME #ifndef DYNAMIC_MZSCHEME "mzscheme", #endif #endif #ifdef FEAT_OLE "ole", #endif #ifdef FEAT_PATH_EXTRA "path_extra", #endif #ifdef FEAT_PERL #ifndef DYNAMIC_PERL "perl", #endif #endif #ifdef FEAT_PERSISTENT_UNDO "persistent_undo", #endif #ifdef FEAT_PYTHON #ifndef DYNAMIC_PYTHON "python", #endif #endif #ifdef FEAT_PYTHON3 #ifndef DYNAMIC_PYTHON3 "python3", #endif #endif #ifdef FEAT_POSTSCRIPT "postscript", #endif #ifdef FEAT_PRINTER "printer", #endif #ifdef FEAT_PROFILE "profile", #endif #ifdef FEAT_RELTIME "reltime", #endif #ifdef FEAT_QUICKFIX "quickfix", #endif #ifdef FEAT_RIGHTLEFT "rightleft", #endif #if defined(FEAT_RUBY) && !defined(DYNAMIC_RUBY) "ruby", #endif #ifdef FEAT_SCROLLBIND "scrollbind", #endif #ifdef FEAT_CMDL_INFO "showcmd", "cmdline_info", #endif #ifdef FEAT_SIGNS "signs", #endif #ifdef FEAT_SMARTINDENT "smartindent", #endif #ifdef FEAT_SNIFF "sniff", #endif #ifdef STARTUPTIME "startuptime", #endif #ifdef FEAT_STL_OPT "statusline", #endif #ifdef FEAT_SUN_WORKSHOP "sun_workshop", #endif #ifdef FEAT_NETBEANS_INTG "netbeans_intg", #endif #ifdef FEAT_SPELL "spell", #endif #ifdef FEAT_SYN_HL "syntax", #endif #if defined(USE_SYSTEM) || !defined(UNIX) "system", #endif #ifdef FEAT_TAG_BINS "tag_binary", #endif #ifdef FEAT_TAG_OLDSTATIC "tag_old_static", #endif #ifdef FEAT_TAG_ANYWHITE "tag_any_white", #endif #ifdef FEAT_TCL # ifndef DYNAMIC_TCL "tcl", # endif #endif #ifdef TERMINFO "terminfo", #endif #ifdef FEAT_TERMRESPONSE "termresponse", #endif #ifdef FEAT_TEXTOBJ "textobjects", #endif #ifdef HAVE_TGETENT "tgetent", #endif #ifdef FEAT_TITLE "title", #endif #ifdef FEAT_TOOLBAR "toolbar", #endif #if defined(FEAT_CLIPBOARD) && defined(FEAT_X11) "unnamedplus", #endif #ifdef FEAT_USR_CMDS "user-commands", /* was accidentally included in 5.4 */ "user_commands", #endif #ifdef FEAT_VIMINFO "viminfo", #endif #ifdef FEAT_VERTSPLIT "vertsplit", #endif #ifdef FEAT_VIRTUALEDIT "virtualedit", #endif "visual", #ifdef FEAT_VISUALEXTRA "visualextra", #endif #ifdef FEAT_VREPLACE "vreplace", #endif #ifdef FEAT_WILDIGN "wildignore", #endif #ifdef FEAT_WILDMENU "wildmenu", #endif #ifdef FEAT_WINDOWS "windows", #endif #ifdef FEAT_WAK "winaltkeys", #endif #ifdef FEAT_WRITEBACKUP "writebackup", #endif #ifdef FEAT_XIM "xim", #endif #ifdef FEAT_XFONTSET "xfontset", #endif #ifdef FEAT_XPM_W32 "xpm", "xpm_w32", /* for backward compatibility */ #else # if defined(HAVE_XPM) "xpm", # endif #endif #ifdef USE_XSMP "xsmp", #endif #ifdef USE_XSMP_INTERACT "xsmp_interact", #endif #ifdef FEAT_XCLIPBOARD "xterm_clipboard", #endif #ifdef FEAT_XTERM_SAVE "xterm_save", #endif #if defined(UNIX) && defined(FEAT_X11) "X11", #endif NULL }; name = get_tv_string(&argvars[0]); for (i = 0; has_list[i] != NULL; ++i) if (STRICMP(name, has_list[i]) == 0) { n = TRUE; break; } if (n == FALSE) { if (STRNICMP(name, "patch", 5) == 0) { if (name[5] == '-' && STRLEN(name) > 11 && vim_isdigit(name[6]) && vim_isdigit(name[8]) && vim_isdigit(name[10])) { int major = atoi((char *)name + 6); int minor = atoi((char *)name + 8); /* Expect "patch-9.9.01234". */ n = (major < VIM_VERSION_MAJOR || (major == VIM_VERSION_MAJOR && (minor < VIM_VERSION_MINOR || (minor == VIM_VERSION_MINOR && has_patch(atoi((char *)name + 10)))))); } else n = has_patch(atoi((char *)name + 5)); } else if (STRICMP(name, "vim_starting") == 0) n = (starting != 0); #ifdef FEAT_MBYTE else if (STRICMP(name, "multi_byte_encoding") == 0) n = has_mbyte; #endif #if defined(FEAT_BEVAL) && defined(FEAT_GUI_W32) else if (STRICMP(name, "balloon_multiline") == 0) n = multiline_balloon_available(); #endif #ifdef DYNAMIC_TCL else if (STRICMP(name, "tcl") == 0) n = tcl_enabled(FALSE); #endif #if defined(USE_ICONV) && defined(DYNAMIC_ICONV) else if (STRICMP(name, "iconv") == 0) n = iconv_enabled(FALSE); #endif #ifdef DYNAMIC_LUA else if (STRICMP(name, "lua") == 0) n = lua_enabled(FALSE); #endif #ifdef DYNAMIC_MZSCHEME else if (STRICMP(name, "mzscheme") == 0) n = mzscheme_enabled(FALSE); #endif #ifdef DYNAMIC_RUBY else if (STRICMP(name, "ruby") == 0) n = ruby_enabled(FALSE); #endif #ifdef FEAT_PYTHON #ifdef DYNAMIC_PYTHON else if (STRICMP(name, "python") == 0) n = python_enabled(FALSE); #endif #endif #ifdef FEAT_PYTHON3 #ifdef DYNAMIC_PYTHON3 else if (STRICMP(name, "python3") == 0) n = python3_enabled(FALSE); #endif #endif #ifdef DYNAMIC_PERL else if (STRICMP(name, "perl") == 0) n = perl_enabled(FALSE); #endif #ifdef FEAT_GUI else if (STRICMP(name, "gui_running") == 0) n = (gui.in_use || gui.starting); # ifdef FEAT_GUI_W32 else if (STRICMP(name, "gui_win32s") == 0) n = gui_is_win32s(); # endif # ifdef FEAT_BROWSE else if (STRICMP(name, "browse") == 0) n = gui.in_use; /* gui_mch_browse() works when GUI is running */ # endif #endif #ifdef FEAT_SYN_HL else if (STRICMP(name, "syntax_items") == 0) n = syntax_present(curwin); #endif #if defined(WIN3264) else if (STRICMP(name, "win95") == 0) n = mch_windows95(); #endif #ifdef FEAT_NETBEANS_INTG else if (STRICMP(name, "netbeans_enabled") == 0) n = netbeans_active(); #endif } rettv->vval.v_number = n; } /* * "has_key()" function */ static void f_has_key(argvars, rettv) typval_T *argvars; typval_T *rettv; { if (argvars[0].v_type != VAR_DICT) { EMSG(_(e_dictreq)); return; } if (argvars[0].vval.v_dict == NULL) return; rettv->vval.v_number = dict_find(argvars[0].vval.v_dict, get_tv_string(&argvars[1]), -1) != NULL; } /* * "haslocaldir()" function */ static void f_haslocaldir(argvars, rettv) typval_T *argvars; typval_T *rettv; { win_T *wp = NULL; wp = find_tabwin(&argvars[0], &argvars[1]); rettv->vval.v_number = (wp != NULL && wp->w_localdir != NULL); } /* * "hasmapto()" function */ static void f_hasmapto(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *name; char_u *mode; char_u buf[NUMBUFLEN]; int abbr = FALSE; name = get_tv_string(&argvars[0]); if (argvars[1].v_type == VAR_UNKNOWN) mode = (char_u *)"nvo"; else { mode = get_tv_string_buf(&argvars[1], buf); if (argvars[2].v_type != VAR_UNKNOWN) abbr = get_tv_number(&argvars[2]); } if (map_to_exists(name, mode, abbr)) rettv->vval.v_number = TRUE; else rettv->vval.v_number = FALSE; } /* * "histadd()" function */ static void f_histadd(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifdef FEAT_CMDHIST int histype; char_u *str; char_u buf[NUMBUFLEN]; #endif rettv->vval.v_number = FALSE; if (check_restricted() || check_secure()) return; #ifdef FEAT_CMDHIST str = get_tv_string_chk(&argvars[0]); /* NULL on type error */ histype = str != NULL ? get_histtype(str) : -1; if (histype >= 0) { str = get_tv_string_buf(&argvars[1], buf); if (*str != NUL) { init_history(); add_to_history(histype, str, FALSE, NUL); rettv->vval.v_number = TRUE; return; } } #endif } /* * "histdel()" function */ static void f_histdel(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_CMDHIST int n; char_u buf[NUMBUFLEN]; char_u *str; str = get_tv_string_chk(&argvars[0]); /* NULL on type error */ if (str == NULL) n = 0; else if (argvars[1].v_type == VAR_UNKNOWN) /* only one argument: clear entire history */ n = clr_history(get_histtype(str)); else if (argvars[1].v_type == VAR_NUMBER) /* index given: remove that entry */ n = del_history_idx(get_histtype(str), (int)get_tv_number(&argvars[1])); else /* string given: remove all matching entries */ n = del_history_entry(get_histtype(str), get_tv_string_buf(&argvars[1], buf)); rettv->vval.v_number = n; #endif } /* * "histget()" function */ static void f_histget(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifdef FEAT_CMDHIST int type; int idx; char_u *str; str = get_tv_string_chk(&argvars[0]); /* NULL on type error */ if (str == NULL) rettv->vval.v_string = NULL; else { type = get_histtype(str); if (argvars[1].v_type == VAR_UNKNOWN) idx = get_history_idx(type); else idx = (int)get_tv_number_chk(&argvars[1], NULL); /* -1 on type error */ rettv->vval.v_string = vim_strsave(get_history_entry(type, idx)); } #else rettv->vval.v_string = NULL; #endif rettv->v_type = VAR_STRING; } /* * "histnr()" function */ static void f_histnr(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { int i; #ifdef FEAT_CMDHIST char_u *history = get_tv_string_chk(&argvars[0]); i = history == NULL ? HIST_CMD - 1 : get_histtype(history); if (i >= HIST_CMD && i < HIST_COUNT) i = get_history_idx(i); else #endif i = -1; rettv->vval.v_number = i; } /* * "highlightID(name)" function */ static void f_hlID(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = syn_name2id(get_tv_string(&argvars[0])); } /* * "highlight_exists()" function */ static void f_hlexists(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = highlight_exists(get_tv_string(&argvars[0])); } /* * "hostname()" function */ static void f_hostname(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { char_u hostname[256]; mch_get_host_name(hostname, 256); rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_strsave(hostname); } /* * iconv() function */ static void f_iconv(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifdef FEAT_MBYTE char_u buf1[NUMBUFLEN]; char_u buf2[NUMBUFLEN]; char_u *from, *to, *str; vimconv_T vimconv; #endif rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_MBYTE str = get_tv_string(&argvars[0]); from = enc_canonize(enc_skip(get_tv_string_buf(&argvars[1], buf1))); to = enc_canonize(enc_skip(get_tv_string_buf(&argvars[2], buf2))); vimconv.vc_type = CONV_NONE; convert_setup(&vimconv, from, to); /* If the encodings are equal, no conversion needed. */ if (vimconv.vc_type == CONV_NONE) rettv->vval.v_string = vim_strsave(str); else rettv->vval.v_string = string_convert(&vimconv, str, NULL); convert_setup(&vimconv, NULL, NULL); vim_free(from); vim_free(to); #endif } /* * "indent()" function */ static void f_indent(argvars, rettv) typval_T *argvars; typval_T *rettv; { linenr_T lnum; lnum = get_tv_lnum(argvars); if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) rettv->vval.v_number = get_indent_lnum(lnum); else rettv->vval.v_number = -1; } /* * "index()" function */ static void f_index(argvars, rettv) typval_T *argvars; typval_T *rettv; { list_T *l; listitem_T *item; long idx = 0; int ic = FALSE; rettv->vval.v_number = -1; if (argvars[0].v_type != VAR_LIST) { EMSG(_(e_listreq)); return; } l = argvars[0].vval.v_list; if (l != NULL) { item = l->lv_first; if (argvars[2].v_type != VAR_UNKNOWN) { int error = FALSE; /* Start at specified item. Use the cached index that list_find() * sets, so that a negative number also works. */ item = list_find(l, get_tv_number_chk(&argvars[2], &error)); idx = l->lv_idx; if (argvars[3].v_type != VAR_UNKNOWN) ic = get_tv_number_chk(&argvars[3], &error); if (error) item = NULL; } for ( ; item != NULL; item = item->li_next, ++idx) if (tv_equal(&item->li_tv, &argvars[1], ic, FALSE)) { rettv->vval.v_number = idx; break; } } } static int inputsecret_flag = 0; static void get_user_input(typval_T *argvars, typval_T *rettv, int inputdialog); /* * This function is used by f_input() and f_inputdialog() functions. The third * argument to f_input() specifies the type of completion to use at the * prompt. The third argument to f_inputdialog() specifies the value to return * when the user cancels the prompt. */ static void get_user_input(argvars, rettv, inputdialog) typval_T *argvars; typval_T *rettv; int inputdialog; { char_u *prompt = get_tv_string_chk(&argvars[0]); char_u *p = NULL; int c; char_u buf[NUMBUFLEN]; int cmd_silent_save = cmd_silent; char_u *defstr = (char_u *)""; int xp_type = EXPAND_NOTHING; char_u *xp_arg = NULL; rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef NO_CONSOLE_INPUT /* While starting up, there is no place to enter text. */ if (no_console_input()) return; #endif cmd_silent = FALSE; /* Want to see the prompt. */ if (prompt != NULL) { /* Only the part of the message after the last NL is considered as * prompt for the command line */ p = vim_strrchr(prompt, '\n'); if (p == NULL) p = prompt; else { ++p; c = *p; *p = NUL; msg_start(); msg_clr_eos(); msg_puts_attr(prompt, echo_attr); msg_didout = FALSE; msg_starthere(); *p = c; } cmdline_row = msg_row; if (argvars[1].v_type != VAR_UNKNOWN) { defstr = get_tv_string_buf_chk(&argvars[1], buf); if (defstr != NULL) stuffReadbuffSpec(defstr); if (!inputdialog && argvars[2].v_type != VAR_UNKNOWN) { char_u *xp_name; int xp_namelen; long argt; /* input() with a third argument: completion */ rettv->vval.v_string = NULL; xp_name = get_tv_string_buf_chk(&argvars[2], buf); if (xp_name == NULL) return; xp_namelen = (int)STRLEN(xp_name); if (parse_compl_arg(xp_name, xp_namelen, &xp_type, &argt, &xp_arg) == FAIL) return; } } if (defstr != NULL) { # ifdef FEAT_EX_EXTRA int save_ex_normal_busy = ex_normal_busy; ex_normal_busy = 0; # endif rettv->vval.v_string = getcmdline_prompt(inputsecret_flag ? NUL : '@', p, echo_attr, xp_type, xp_arg); # ifdef FEAT_EX_EXTRA ex_normal_busy = save_ex_normal_busy; # endif } if (inputdialog && rettv->vval.v_string == NULL && argvars[1].v_type != VAR_UNKNOWN && argvars[2].v_type != VAR_UNKNOWN) rettv->vval.v_string = vim_strsave(get_tv_string_buf( &argvars[2], buf)); vim_free(xp_arg); /* since the user typed this, no need to wait for return */ need_wait_return = FALSE; msg_didout = FALSE; } cmd_silent = cmd_silent_save; } /* * "input()" function * Also handles inputsecret() when inputsecret is set. */ static void f_input(argvars, rettv) typval_T *argvars; typval_T *rettv; { get_user_input(argvars, rettv, FALSE); } /* * "inputdialog()" function */ static void f_inputdialog(argvars, rettv) typval_T *argvars; typval_T *rettv; { #if defined(FEAT_GUI_TEXTDIALOG) /* Use a GUI dialog if the GUI is running and 'c' is not in 'guioptions' */ if (gui.in_use && vim_strchr(p_go, GO_CONDIALOG) == NULL) { char_u *message; char_u buf[NUMBUFLEN]; char_u *defstr = (char_u *)""; message = get_tv_string_chk(&argvars[0]); if (argvars[1].v_type != VAR_UNKNOWN && (defstr = get_tv_string_buf_chk(&argvars[1], buf)) != NULL) vim_strncpy(IObuff, defstr, IOSIZE - 1); else IObuff[0] = NUL; if (message != NULL && defstr != NULL && do_dialog(VIM_QUESTION, NULL, message, (char_u *)_("&OK\n&Cancel"), 1, IObuff, FALSE) == 1) rettv->vval.v_string = vim_strsave(IObuff); else { if (message != NULL && defstr != NULL && argvars[1].v_type != VAR_UNKNOWN && argvars[2].v_type != VAR_UNKNOWN) rettv->vval.v_string = vim_strsave( get_tv_string_buf(&argvars[2], buf)); else rettv->vval.v_string = NULL; } rettv->v_type = VAR_STRING; } else #endif get_user_input(argvars, rettv, TRUE); } /* * "inputlist()" function */ static void f_inputlist(argvars, rettv) typval_T *argvars; typval_T *rettv; { listitem_T *li; int selected; int mouse_used; #ifdef NO_CONSOLE_INPUT /* While starting up, there is no place to enter text. */ if (no_console_input()) return; #endif if (argvars[0].v_type != VAR_LIST || argvars[0].vval.v_list == NULL) { EMSG2(_(e_listarg), "inputlist()"); return; } msg_start(); msg_row = Rows - 1; /* for when 'cmdheight' > 1 */ lines_left = Rows; /* avoid more prompt */ msg_scroll = TRUE; msg_clr_eos(); for (li = argvars[0].vval.v_list->lv_first; li != NULL; li = li->li_next) { msg_puts(get_tv_string(&li->li_tv)); msg_putchar('\n'); } /* Ask for choice. */ selected = prompt_for_number(&mouse_used); if (mouse_used) selected -= lines_left; rettv->vval.v_number = selected; } static garray_T ga_userinput = {0, 0, sizeof(tasave_T), 4, NULL}; /* * "inputrestore()" function */ static void f_inputrestore(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { if (ga_userinput.ga_len > 0) { --ga_userinput.ga_len; restore_typeahead((tasave_T *)(ga_userinput.ga_data) + ga_userinput.ga_len); /* default return is zero == OK */ } else if (p_verbose > 1) { verb_msg((char_u *)_("called inputrestore() more often than inputsave()")); rettv->vval.v_number = 1; /* Failed */ } } /* * "inputsave()" function */ static void f_inputsave(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { /* Add an entry to the stack of typeahead storage. */ if (ga_grow(&ga_userinput, 1) == OK) { save_typeahead((tasave_T *)(ga_userinput.ga_data) + ga_userinput.ga_len); ++ga_userinput.ga_len; /* default return is zero == OK */ } else rettv->vval.v_number = 1; /* Failed */ } /* * "inputsecret()" function */ static void f_inputsecret(argvars, rettv) typval_T *argvars; typval_T *rettv; { ++cmdline_star; ++inputsecret_flag; f_input(argvars, rettv); --cmdline_star; --inputsecret_flag; } /* * "insert()" function */ static void f_insert(argvars, rettv) typval_T *argvars; typval_T *rettv; { long before = 0; listitem_T *item; list_T *l; int error = FALSE; if (argvars[0].v_type != VAR_LIST) EMSG2(_(e_listarg), "insert()"); else if ((l = argvars[0].vval.v_list) != NULL && !tv_check_lock(l->lv_lock, (char_u *)N_("insert() argument"), TRUE)) { if (argvars[2].v_type != VAR_UNKNOWN) before = get_tv_number_chk(&argvars[2], &error); if (error) return; /* type error; errmsg already given */ if (before == l->lv_len) item = NULL; else { item = list_find(l, before); if (item == NULL) { EMSGN(_(e_listidx), before); l = NULL; } } if (l != NULL) { list_insert_tv(l, &argvars[1], item); copy_tv(&argvars[0], rettv); } } } /* * "invert(expr)" function */ static void f_invert(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = ~get_tv_number_chk(&argvars[0], NULL); } /* * "isdirectory()" function */ static void f_isdirectory(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = mch_isdir(get_tv_string(&argvars[0])); } /* * "islocked()" function */ static void f_islocked(argvars, rettv) typval_T *argvars; typval_T *rettv; { lval_T lv; char_u *end; dictitem_T *di; rettv->vval.v_number = -1; end = get_lval(get_tv_string(&argvars[0]), NULL, &lv, FALSE, FALSE, GLV_NO_AUTOLOAD, FNE_CHECK_START); if (end != NULL && lv.ll_name != NULL) { if (*end != NUL) EMSG(_(e_trailing)); else { if (lv.ll_tv == NULL) { if (check_changedtick(lv.ll_name)) rettv->vval.v_number = 1; /* always locked */ else { di = find_var(lv.ll_name, NULL, TRUE); if (di != NULL) { /* Consider a variable locked when: * 1. the variable itself is locked * 2. the value of the variable is locked. * 3. the List or Dict value is locked. */ rettv->vval.v_number = ((di->di_flags & DI_FLAGS_LOCK) || tv_islocked(&di->di_tv)); } } } else if (lv.ll_range) EMSG(_("E786: Range not allowed")); else if (lv.ll_newkey != NULL) EMSG2(_(e_dictkey), lv.ll_newkey); else if (lv.ll_list != NULL) /* List item. */ rettv->vval.v_number = tv_islocked(&lv.ll_li->li_tv); else /* Dictionary item. */ rettv->vval.v_number = tv_islocked(&lv.ll_di->di_tv); } } clear_lval(&lv); } static void dict_list(typval_T *argvars, typval_T *rettv, int what); /* * Turn a dict into a list: * "what" == 0: list of keys * "what" == 1: list of values * "what" == 2: list of items */ static void dict_list(argvars, rettv, what) typval_T *argvars; typval_T *rettv; int what; { list_T *l2; dictitem_T *di; hashitem_T *hi; listitem_T *li; listitem_T *li2; dict_T *d; int todo; if (argvars[0].v_type != VAR_DICT) { EMSG(_(e_dictreq)); return; } if ((d = argvars[0].vval.v_dict) == NULL) return; if (rettv_list_alloc(rettv) == FAIL) return; todo = (int)d->dv_hashtab.ht_used; for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; di = HI2DI(hi); li = listitem_alloc(); if (li == NULL) break; list_append(rettv->vval.v_list, li); if (what == 0) { /* keys() */ li->li_tv.v_type = VAR_STRING; li->li_tv.v_lock = 0; li->li_tv.vval.v_string = vim_strsave(di->di_key); } else if (what == 1) { /* values() */ copy_tv(&di->di_tv, &li->li_tv); } else { /* items() */ l2 = list_alloc(); li->li_tv.v_type = VAR_LIST; li->li_tv.v_lock = 0; li->li_tv.vval.v_list = l2; if (l2 == NULL) break; ++l2->lv_refcount; li2 = listitem_alloc(); if (li2 == NULL) break; list_append(l2, li2); li2->li_tv.v_type = VAR_STRING; li2->li_tv.v_lock = 0; li2->li_tv.vval.v_string = vim_strsave(di->di_key); li2 = listitem_alloc(); if (li2 == NULL) break; list_append(l2, li2); copy_tv(&di->di_tv, &li2->li_tv); } } } } /* * "items(dict)" function */ static void f_items(argvars, rettv) typval_T *argvars; typval_T *rettv; { dict_list(argvars, rettv, 2); } /* * "join()" function */ static void f_join(argvars, rettv) typval_T *argvars; typval_T *rettv; { garray_T ga; char_u *sep; if (argvars[0].v_type != VAR_LIST) { EMSG(_(e_listreq)); return; } if (argvars[0].vval.v_list == NULL) return; if (argvars[1].v_type == VAR_UNKNOWN) sep = (char_u *)" "; else sep = get_tv_string_chk(&argvars[1]); rettv->v_type = VAR_STRING; if (sep != NULL) { ga_init2(&ga, (int)sizeof(char), 80); list_join(&ga, argvars[0].vval.v_list, sep, TRUE, 0); ga_append(&ga, NUL); rettv->vval.v_string = (char_u *)ga.ga_data; } else rettv->vval.v_string = NULL; } /* * "jsondecode()" function */ static void f_jsondecode(argvars, rettv) typval_T *argvars; typval_T *rettv; { js_read_T reader; reader.js_buf = get_tv_string(&argvars[0]); reader.js_eof = TRUE; reader.js_used = 0; json_decode(&reader, rettv); } /* * "jsonencode()" function */ static void f_jsonencode(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = json_encode(&argvars[0]); } /* * "keys()" function */ static void f_keys(argvars, rettv) typval_T *argvars; typval_T *rettv; { dict_list(argvars, rettv, 0); } /* * "last_buffer_nr()" function. */ static void f_last_buffer_nr(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { int n = 0; buf_T *buf; for (buf = firstbuf; buf != NULL; buf = buf->b_next) if (n < buf->b_fnum) n = buf->b_fnum; rettv->vval.v_number = n; } /* * "len()" function */ static void f_len(argvars, rettv) typval_T *argvars; typval_T *rettv; { switch (argvars[0].v_type) { case VAR_STRING: case VAR_NUMBER: rettv->vval.v_number = (varnumber_T)STRLEN( get_tv_string(&argvars[0])); break; case VAR_LIST: rettv->vval.v_number = list_len(argvars[0].vval.v_list); break; case VAR_DICT: rettv->vval.v_number = dict_len(argvars[0].vval.v_dict); break; default: EMSG(_("E701: Invalid type for len()")); break; } } static void libcall_common(typval_T *argvars, typval_T *rettv, int type); static void libcall_common(argvars, rettv, type) typval_T *argvars; typval_T *rettv; int type; { #ifdef FEAT_LIBCALL char_u *string_in; char_u **string_result; int nr_result; #endif rettv->v_type = type; if (type != VAR_NUMBER) rettv->vval.v_string = NULL; if (check_restricted() || check_secure()) return; #ifdef FEAT_LIBCALL /* The first two args must be strings, otherwise its meaningless */ if (argvars[0].v_type == VAR_STRING && argvars[1].v_type == VAR_STRING) { string_in = NULL; if (argvars[2].v_type == VAR_STRING) string_in = argvars[2].vval.v_string; if (type == VAR_NUMBER) string_result = NULL; else string_result = &rettv->vval.v_string; if (mch_libcall(argvars[0].vval.v_string, argvars[1].vval.v_string, string_in, argvars[2].vval.v_number, string_result, &nr_result) == OK && type == VAR_NUMBER) rettv->vval.v_number = nr_result; } #endif } /* * "libcall()" function */ static void f_libcall(argvars, rettv) typval_T *argvars; typval_T *rettv; { libcall_common(argvars, rettv, VAR_STRING); } /* * "libcallnr()" function */ static void f_libcallnr(argvars, rettv) typval_T *argvars; typval_T *rettv; { libcall_common(argvars, rettv, VAR_NUMBER); } /* * "line(string)" function */ static void f_line(argvars, rettv) typval_T *argvars; typval_T *rettv; { linenr_T lnum = 0; pos_T *fp; int fnum; fp = var2fpos(&argvars[0], TRUE, &fnum); if (fp != NULL) lnum = fp->lnum; rettv->vval.v_number = lnum; } /* * "line2byte(lnum)" function */ static void f_line2byte(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifndef FEAT_BYTEOFF rettv->vval.v_number = -1; #else linenr_T lnum; lnum = get_tv_lnum(argvars); if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count + 1) rettv->vval.v_number = -1; else rettv->vval.v_number = ml_find_line_or_offset(curbuf, lnum, NULL); if (rettv->vval.v_number >= 0) ++rettv->vval.v_number; #endif } /* * "lispindent(lnum)" function */ static void f_lispindent(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifdef FEAT_LISP pos_T pos; linenr_T lnum; pos = curwin->w_cursor; lnum = get_tv_lnum(argvars); if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) { curwin->w_cursor.lnum = lnum; rettv->vval.v_number = get_lisp_indent(); curwin->w_cursor = pos; } else #endif rettv->vval.v_number = -1; } /* * "localtime()" function */ static void f_localtime(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->vval.v_number = (varnumber_T)time(NULL); } static void get_maparg(typval_T *argvars, typval_T *rettv, int exact); static void get_maparg(argvars, rettv, exact) typval_T *argvars; typval_T *rettv; int exact; { char_u *keys; char_u *which; char_u buf[NUMBUFLEN]; char_u *keys_buf = NULL; char_u *rhs; int mode; int abbr = FALSE; int get_dict = FALSE; mapblock_T *mp; int buffer_local; /* return empty string for failure */ rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; keys = get_tv_string(&argvars[0]); if (*keys == NUL) return; if (argvars[1].v_type != VAR_UNKNOWN) { which = get_tv_string_buf_chk(&argvars[1], buf); if (argvars[2].v_type != VAR_UNKNOWN) { abbr = get_tv_number(&argvars[2]); if (argvars[3].v_type != VAR_UNKNOWN) get_dict = get_tv_number(&argvars[3]); } } else which = (char_u *)""; if (which == NULL) return; mode = get_map_mode(&which, 0); keys = replace_termcodes(keys, &keys_buf, TRUE, TRUE, FALSE); rhs = check_map(keys, mode, exact, FALSE, abbr, &mp, &buffer_local); vim_free(keys_buf); if (!get_dict) { /* Return a string. */ if (rhs != NULL) rettv->vval.v_string = str2special_save(rhs, FALSE); } else if (rettv_dict_alloc(rettv) != FAIL && rhs != NULL) { /* Return a dictionary. */ char_u *lhs = str2special_save(mp->m_keys, TRUE); char_u *mapmode = map_mode_to_chars(mp->m_mode); dict_T *dict = rettv->vval.v_dict; dict_add_nr_str(dict, "lhs", 0L, lhs); dict_add_nr_str(dict, "rhs", 0L, mp->m_orig_str); dict_add_nr_str(dict, "noremap", mp->m_noremap ? 1L : 0L , NULL); dict_add_nr_str(dict, "expr", mp->m_expr ? 1L : 0L, NULL); dict_add_nr_str(dict, "silent", mp->m_silent ? 1L : 0L, NULL); dict_add_nr_str(dict, "sid", (long)mp->m_script_ID, NULL); dict_add_nr_str(dict, "buffer", (long)buffer_local, NULL); dict_add_nr_str(dict, "nowait", mp->m_nowait ? 1L : 0L, NULL); dict_add_nr_str(dict, "mode", 0L, mapmode); vim_free(lhs); vim_free(mapmode); } } #ifdef FEAT_FLOAT /* * "log()" function */ static void f_log(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = log(f); else rettv->vval.v_float = 0.0; } /* * "log10()" function */ static void f_log10(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = log10(f); else rettv->vval.v_float = 0.0; } #endif #ifdef FEAT_LUA /* * "luaeval()" function */ static void f_luaeval(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *str; char_u buf[NUMBUFLEN]; str = get_tv_string_buf(&argvars[0], buf); do_luaeval(str, argvars + 1, rettv); } #endif /* * "map()" function */ static void f_map(argvars, rettv) typval_T *argvars; typval_T *rettv; { filter_map(argvars, rettv, TRUE); } /* * "maparg()" function */ static void f_maparg(argvars, rettv) typval_T *argvars; typval_T *rettv; { get_maparg(argvars, rettv, TRUE); } /* * "mapcheck()" function */ static void f_mapcheck(argvars, rettv) typval_T *argvars; typval_T *rettv; { get_maparg(argvars, rettv, FALSE); } static void find_some_match(typval_T *argvars, typval_T *rettv, int start); static void find_some_match(argvars, rettv, type) typval_T *argvars; typval_T *rettv; int type; { char_u *str = NULL; long len = 0; char_u *expr = NULL; char_u *pat; regmatch_T regmatch; char_u patbuf[NUMBUFLEN]; char_u strbuf[NUMBUFLEN]; char_u *save_cpo; long start = 0; long nth = 1; colnr_T startcol = 0; int match = 0; list_T *l = NULL; listitem_T *li = NULL; long idx = 0; char_u *tofree = NULL; /* Make 'cpoptions' empty, the 'l' flag should not be used here. */ save_cpo = p_cpo; p_cpo = (char_u *)""; rettv->vval.v_number = -1; if (type == 3) { /* return empty list when there are no matches */ if (rettv_list_alloc(rettv) == FAIL) goto theend; } else if (type == 2) { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; } if (argvars[0].v_type == VAR_LIST) { if ((l = argvars[0].vval.v_list) == NULL) goto theend; li = l->lv_first; } else { expr = str = get_tv_string(&argvars[0]); len = (long)STRLEN(str); } pat = get_tv_string_buf_chk(&argvars[1], patbuf); if (pat == NULL) goto theend; if (argvars[2].v_type != VAR_UNKNOWN) { int error = FALSE; start = get_tv_number_chk(&argvars[2], &error); if (error) goto theend; if (l != NULL) { li = list_find(l, start); if (li == NULL) goto theend; idx = l->lv_idx; /* use the cached index */ } else { if (start < 0) start = 0; if (start > len) goto theend; /* When "count" argument is there ignore matches before "start", * otherwise skip part of the string. Differs when pattern is "^" * or "\<". */ if (argvars[3].v_type != VAR_UNKNOWN) startcol = start; else { str += start; len -= start; } } if (argvars[3].v_type != VAR_UNKNOWN) nth = get_tv_number_chk(&argvars[3], &error); if (error) goto theend; } regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING); if (regmatch.regprog != NULL) { regmatch.rm_ic = p_ic; for (;;) { if (l != NULL) { if (li == NULL) { match = FALSE; break; } vim_free(tofree); str = echo_string(&li->li_tv, &tofree, strbuf, 0); if (str == NULL) break; } match = vim_regexec_nl(®match, str, (colnr_T)startcol); if (match && --nth <= 0) break; if (l == NULL && !match) break; /* Advance to just after the match. */ if (l != NULL) { li = li->li_next; ++idx; } else { #ifdef FEAT_MBYTE startcol = (colnr_T)(regmatch.startp[0] + (*mb_ptr2len)(regmatch.startp[0]) - str); #else startcol = (colnr_T)(regmatch.startp[0] + 1 - str); #endif if (startcol > (colnr_T)len || str + startcol <= regmatch.startp[0]) { match = FALSE; break; } } } if (match) { if (type == 3) { int i; /* return list with matched string and submatches */ for (i = 0; i < NSUBEXP; ++i) { if (regmatch.endp[i] == NULL) { if (list_append_string(rettv->vval.v_list, (char_u *)"", 0) == FAIL) break; } else if (list_append_string(rettv->vval.v_list, regmatch.startp[i], (int)(regmatch.endp[i] - regmatch.startp[i])) == FAIL) break; } } else if (type == 2) { /* return matched string */ if (l != NULL) copy_tv(&li->li_tv, rettv); else rettv->vval.v_string = vim_strnsave(regmatch.startp[0], (int)(regmatch.endp[0] - regmatch.startp[0])); } else if (l != NULL) rettv->vval.v_number = idx; else { if (type != 0) rettv->vval.v_number = (varnumber_T)(regmatch.startp[0] - str); else rettv->vval.v_number = (varnumber_T)(regmatch.endp[0] - str); rettv->vval.v_number += (varnumber_T)(str - expr); } } vim_regfree(regmatch.regprog); } theend: vim_free(tofree); p_cpo = save_cpo; } /* * "match()" function */ static void f_match(argvars, rettv) typval_T *argvars; typval_T *rettv; { find_some_match(argvars, rettv, 1); } /* * "matchadd()" function */ static void f_matchadd(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_SEARCH_EXTRA char_u buf[NUMBUFLEN]; char_u *grp = get_tv_string_buf_chk(&argvars[0], buf); /* group */ char_u *pat = get_tv_string_buf_chk(&argvars[1], buf); /* pattern */ int prio = 10; /* default priority */ int id = -1; int error = FALSE; char_u *conceal_char = NULL; rettv->vval.v_number = -1; if (grp == NULL || pat == NULL) return; if (argvars[2].v_type != VAR_UNKNOWN) { prio = get_tv_number_chk(&argvars[2], &error); if (argvars[3].v_type != VAR_UNKNOWN) { id = get_tv_number_chk(&argvars[3], &error); if (argvars[4].v_type != VAR_UNKNOWN) { if (argvars[4].v_type != VAR_DICT) { EMSG(_(e_dictreq)); return; } if (dict_find(argvars[4].vval.v_dict, (char_u *)"conceal", -1) != NULL) conceal_char = get_dict_string(argvars[4].vval.v_dict, (char_u *)"conceal", FALSE); } } } if (error == TRUE) return; if (id >= 1 && id <= 3) { EMSGN("E798: ID is reserved for \":match\": %ld", id); return; } rettv->vval.v_number = match_add(curwin, grp, pat, prio, id, NULL, conceal_char); #endif } /* * "matchaddpos()" function */ static void f_matchaddpos(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_SEARCH_EXTRA char_u buf[NUMBUFLEN]; char_u *group; int prio = 10; int id = -1; int error = FALSE; list_T *l; char_u *conceal_char = NULL; rettv->vval.v_number = -1; group = get_tv_string_buf_chk(&argvars[0], buf); if (group == NULL) return; if (argvars[1].v_type != VAR_LIST) { EMSG2(_(e_listarg), "matchaddpos()"); return; } l = argvars[1].vval.v_list; if (l == NULL) return; if (argvars[2].v_type != VAR_UNKNOWN) { prio = get_tv_number_chk(&argvars[2], &error); if (argvars[3].v_type != VAR_UNKNOWN) { id = get_tv_number_chk(&argvars[3], &error); if (argvars[4].v_type != VAR_UNKNOWN) { if (argvars[4].v_type != VAR_DICT) { EMSG(_(e_dictreq)); return; } if (dict_find(argvars[4].vval.v_dict, (char_u *)"conceal", -1) != NULL) conceal_char = get_dict_string(argvars[4].vval.v_dict, (char_u *)"conceal", FALSE); } } } if (error == TRUE) return; /* id == 3 is ok because matchaddpos() is supposed to substitute :3match */ if (id == 1 || id == 2) { EMSGN("E798: ID is reserved for \":match\": %ld", id); return; } rettv->vval.v_number = match_add(curwin, group, NULL, prio, id, l, conceal_char); #endif } /* * "matcharg()" function */ static void f_matcharg(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { if (rettv_list_alloc(rettv) == OK) { #ifdef FEAT_SEARCH_EXTRA int id = get_tv_number(&argvars[0]); matchitem_T *m; if (id >= 1 && id <= 3) { if ((m = (matchitem_T *)get_match(curwin, id)) != NULL) { list_append_string(rettv->vval.v_list, syn_id2name(m->hlg_id), -1); list_append_string(rettv->vval.v_list, m->pattern, -1); } else { list_append_string(rettv->vval.v_list, NULL, -1); list_append_string(rettv->vval.v_list, NULL, -1); } } #endif } } /* * "matchdelete()" function */ static void f_matchdelete(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_SEARCH_EXTRA rettv->vval.v_number = match_delete(curwin, (int)get_tv_number(&argvars[0]), TRUE); #endif } /* * "matchend()" function */ static void f_matchend(argvars, rettv) typval_T *argvars; typval_T *rettv; { find_some_match(argvars, rettv, 0); } /* * "matchlist()" function */ static void f_matchlist(argvars, rettv) typval_T *argvars; typval_T *rettv; { find_some_match(argvars, rettv, 3); } /* * "matchstr()" function */ static void f_matchstr(argvars, rettv) typval_T *argvars; typval_T *rettv; { find_some_match(argvars, rettv, 2); } static void max_min(typval_T *argvars, typval_T *rettv, int domax); static void max_min(argvars, rettv, domax) typval_T *argvars; typval_T *rettv; int domax; { long n = 0; long i; int error = FALSE; if (argvars[0].v_type == VAR_LIST) { list_T *l; listitem_T *li; l = argvars[0].vval.v_list; if (l != NULL) { li = l->lv_first; if (li != NULL) { n = get_tv_number_chk(&li->li_tv, &error); for (;;) { li = li->li_next; if (li == NULL) break; i = get_tv_number_chk(&li->li_tv, &error); if (domax ? i > n : i < n) n = i; } } } } else if (argvars[0].v_type == VAR_DICT) { dict_T *d; int first = TRUE; hashitem_T *hi; int todo; d = argvars[0].vval.v_dict; if (d != NULL) { todo = (int)d->dv_hashtab.ht_used; for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; i = get_tv_number_chk(&HI2DI(hi)->di_tv, &error); if (first) { n = i; first = FALSE; } else if (domax ? i > n : i < n) n = i; } } } } else EMSG(_(e_listdictarg)); rettv->vval.v_number = error ? 0 : n; } /* * "max()" function */ static void f_max(argvars, rettv) typval_T *argvars; typval_T *rettv; { max_min(argvars, rettv, TRUE); } /* * "min()" function */ static void f_min(argvars, rettv) typval_T *argvars; typval_T *rettv; { max_min(argvars, rettv, FALSE); } static int mkdir_recurse(char_u *dir, int prot); /* * Create the directory in which "dir" is located, and higher levels when * needed. */ static int mkdir_recurse(dir, prot) char_u *dir; int prot; { char_u *p; char_u *updir; int r = FAIL; /* Get end of directory name in "dir". * We're done when it's "/" or "c:/". */ p = gettail_sep(dir); if (p <= get_past_head(dir)) return OK; /* If the directory exists we're done. Otherwise: create it.*/ updir = vim_strnsave(dir, (int)(p - dir)); if (updir == NULL) return FAIL; if (mch_isdir(updir)) r = OK; else if (mkdir_recurse(updir, prot) == OK) r = vim_mkdir_emsg(updir, prot); vim_free(updir); return r; } #ifdef vim_mkdir /* * "mkdir()" function */ static void f_mkdir(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *dir; char_u buf[NUMBUFLEN]; int prot = 0755; rettv->vval.v_number = FAIL; if (check_restricted() || check_secure()) return; dir = get_tv_string_buf(&argvars[0], buf); if (*dir == NUL) rettv->vval.v_number = FAIL; else { if (*gettail(dir) == NUL) /* remove trailing slashes */ *gettail_sep(dir) = NUL; if (argvars[1].v_type != VAR_UNKNOWN) { if (argvars[2].v_type != VAR_UNKNOWN) prot = get_tv_number_chk(&argvars[2], NULL); if (prot != -1 && STRCMP(get_tv_string(&argvars[1]), "p") == 0) mkdir_recurse(dir, prot); } rettv->vval.v_number = prot == -1 ? FAIL : vim_mkdir_emsg(dir, prot); } } #endif /* * "mode()" function */ static void f_mode(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u buf[3]; buf[1] = NUL; buf[2] = NUL; if (VIsual_active) { if (VIsual_select) buf[0] = VIsual_mode + 's' - 'v'; else buf[0] = VIsual_mode; } else if (State == HITRETURN || State == ASKMORE || State == SETWSIZE || State == CONFIRM) { buf[0] = 'r'; if (State == ASKMORE) buf[1] = 'm'; else if (State == CONFIRM) buf[1] = '?'; } else if (State == EXTERNCMD) buf[0] = '!'; else if (State & INSERT) { #ifdef FEAT_VREPLACE if (State & VREPLACE_FLAG) { buf[0] = 'R'; buf[1] = 'v'; } else #endif if (State & REPLACE_FLAG) buf[0] = 'R'; else buf[0] = 'i'; } else if (State & CMDLINE) { buf[0] = 'c'; if (exmode_active) buf[1] = 'v'; } else if (exmode_active) { buf[0] = 'c'; buf[1] = 'e'; } else { buf[0] = 'n'; if (finish_op) buf[1] = 'o'; } /* Clear out the minor mode when the argument is not a non-zero number or * non-empty string. */ if (!non_zero_arg(&argvars[0])) buf[1] = NUL; rettv->vval.v_string = vim_strsave(buf); rettv->v_type = VAR_STRING; } #if defined(FEAT_MZSCHEME) || defined(PROTO) /* * "mzeval()" function */ static void f_mzeval(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *str; char_u buf[NUMBUFLEN]; str = get_tv_string_buf(&argvars[0], buf); do_mzeval(str, rettv); } void mzscheme_call_vim(name, args, rettv) char_u *name; typval_T *args; typval_T *rettv; { typval_T argvars[3]; argvars[0].v_type = VAR_STRING; argvars[0].vval.v_string = name; copy_tv(args, &argvars[1]); argvars[2].v_type = VAR_UNKNOWN; f_call(argvars, rettv); clear_tv(&argvars[1]); } #endif /* * "nextnonblank()" function */ static void f_nextnonblank(argvars, rettv) typval_T *argvars; typval_T *rettv; { linenr_T lnum; for (lnum = get_tv_lnum(argvars); ; ++lnum) { if (lnum < 0 || lnum > curbuf->b_ml.ml_line_count) { lnum = 0; break; } if (*skipwhite(ml_get(lnum)) != NUL) break; } rettv->vval.v_number = lnum; } /* * "nr2char()" function */ static void f_nr2char(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u buf[NUMBUFLEN]; #ifdef FEAT_MBYTE if (has_mbyte) { int utf8 = 0; if (argvars[1].v_type != VAR_UNKNOWN) utf8 = get_tv_number_chk(&argvars[1], NULL); if (utf8) buf[(*utf_char2bytes)((int)get_tv_number(&argvars[0]), buf)] = NUL; else buf[(*mb_char2bytes)((int)get_tv_number(&argvars[0]), buf)] = NUL; } else #endif { buf[0] = (char_u)get_tv_number(&argvars[0]); buf[1] = NUL; } rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_strsave(buf); } /* * "or(expr, expr)" function */ static void f_or(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = get_tv_number_chk(&argvars[0], NULL) | get_tv_number_chk(&argvars[1], NULL); } /* * "pathshorten()" function */ static void f_pathshorten(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p; rettv->v_type = VAR_STRING; p = get_tv_string_chk(&argvars[0]); if (p == NULL) rettv->vval.v_string = NULL; else { p = vim_strsave(p); rettv->vval.v_string = p; if (p != NULL) shorten_dir(p); } } #ifdef FEAT_PERL /* * "perleval()" function */ static void f_perleval(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *str; char_u buf[NUMBUFLEN]; str = get_tv_string_buf(&argvars[0], buf); do_perleval(str, rettv); } #endif #ifdef FEAT_FLOAT /* * "pow()" function */ static void f_pow(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T fx, fy; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &fx) == OK && get_float_arg(&argvars[1], &fy) == OK) rettv->vval.v_float = pow(fx, fy); else rettv->vval.v_float = 0.0; } #endif /* * "prevnonblank()" function */ static void f_prevnonblank(argvars, rettv) typval_T *argvars; typval_T *rettv; { linenr_T lnum; lnum = get_tv_lnum(argvars); if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count) lnum = 0; else while (lnum >= 1 && *skipwhite(ml_get(lnum)) == NUL) --lnum; rettv->vval.v_number = lnum; } #ifdef HAVE_STDARG_H /* This dummy va_list is here because: * - passing a NULL pointer doesn't work when va_list isn't a pointer * - locally in the function results in a "used before set" warning * - using va_start() to initialize it gives "function with fixed args" error */ static va_list ap; #endif /* * "printf()" function */ static void f_printf(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef HAVE_STDARG_H /* only very old compilers can't do this */ { char_u buf[NUMBUFLEN]; int len; char_u *s; int saved_did_emsg = did_emsg; char *fmt; /* Get the required length, allocate the buffer and do it for real. */ did_emsg = FALSE; fmt = (char *)get_tv_string_buf(&argvars[0], buf); len = vim_vsnprintf(NULL, 0, fmt, ap, argvars + 1); if (!did_emsg) { s = alloc(len + 1); if (s != NULL) { rettv->vval.v_string = s; (void)vim_vsnprintf((char *)s, len + 1, fmt, ap, argvars + 1); } } did_emsg |= saved_did_emsg; } #endif } /* * "pumvisible()" function */ static void f_pumvisible(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_INS_EXPAND if (pum_visible()) rettv->vval.v_number = 1; #endif } #ifdef FEAT_PYTHON3 /* * "py3eval()" function */ static void f_py3eval(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *str; char_u buf[NUMBUFLEN]; str = get_tv_string_buf(&argvars[0], buf); do_py3eval(str, rettv); } #endif #ifdef FEAT_PYTHON /* * "pyeval()" function */ static void f_pyeval(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *str; char_u buf[NUMBUFLEN]; str = get_tv_string_buf(&argvars[0], buf); do_pyeval(str, rettv); } #endif /* * "range()" function */ static void f_range(argvars, rettv) typval_T *argvars; typval_T *rettv; { long start; long end; long stride = 1; long i; int error = FALSE; start = get_tv_number_chk(&argvars[0], &error); if (argvars[1].v_type == VAR_UNKNOWN) { end = start - 1; start = 0; } else { end = get_tv_number_chk(&argvars[1], &error); if (argvars[2].v_type != VAR_UNKNOWN) stride = get_tv_number_chk(&argvars[2], &error); } if (error) return; /* type error; errmsg already given */ if (stride == 0) EMSG(_("E726: Stride is zero")); else if (stride > 0 ? end + 1 < start : end - 1 > start) EMSG(_("E727: Start past end")); else { if (rettv_list_alloc(rettv) == OK) for (i = start; stride > 0 ? i <= end : i >= end; i += stride) if (list_append_number(rettv->vval.v_list, (varnumber_T)i) == FAIL) break; } } /* * "readfile()" function */ static void f_readfile(argvars, rettv) typval_T *argvars; typval_T *rettv; { int binary = FALSE; int failed = FALSE; char_u *fname; FILE *fd; char_u buf[(IOSIZE/256)*256]; /* rounded to avoid odd + 1 */ int io_size = sizeof(buf); int readlen; /* size of last fread() */ char_u *prev = NULL; /* previously read bytes, if any */ long prevlen = 0; /* length of data in prev */ long prevsize = 0; /* size of prev buffer */ long maxline = MAXLNUM; long cnt = 0; char_u *p; /* position in buf */ char_u *start; /* start of current line */ if (argvars[1].v_type != VAR_UNKNOWN) { if (STRCMP(get_tv_string(&argvars[1]), "b") == 0) binary = TRUE; if (argvars[2].v_type != VAR_UNKNOWN) maxline = get_tv_number(&argvars[2]); } if (rettv_list_alloc(rettv) == FAIL) return; /* Always open the file in binary mode, library functions have a mind of * their own about CR-LF conversion. */ fname = get_tv_string(&argvars[0]); if (*fname == NUL || (fd = mch_fopen((char *)fname, READBIN)) == NULL) { EMSG2(_(e_notopen), *fname == NUL ? (char_u *)_("<empty>") : fname); return; } while (cnt < maxline || maxline < 0) { readlen = (int)fread(buf, 1, io_size, fd); /* This for loop processes what was read, but is also entered at end * of file so that either: * - an incomplete line gets written * - a "binary" file gets an empty line at the end if it ends in a * newline. */ for (p = buf, start = buf; p < buf + readlen || (readlen <= 0 && (prevlen > 0 || binary)); ++p) { if (*p == '\n' || readlen <= 0) { listitem_T *li; char_u *s = NULL; long_u len = p - start; /* Finished a line. Remove CRs before NL. */ if (readlen > 0 && !binary) { while (len > 0 && start[len - 1] == '\r') --len; /* removal may cross back to the "prev" string */ if (len == 0) while (prevlen > 0 && prev[prevlen - 1] == '\r') --prevlen; } if (prevlen == 0) s = vim_strnsave(start, (int)len); else { /* Change "prev" buffer to be the right size. This way * the bytes are only copied once, and very long lines are * allocated only once. */ if ((s = vim_realloc(prev, prevlen + len + 1)) != NULL) { mch_memmove(s + prevlen, start, len); s[prevlen + len] = NUL; prev = NULL; /* the list will own the string */ prevlen = prevsize = 0; } } if (s == NULL) { do_outofmem_msg((long_u) prevlen + len + 1); failed = TRUE; break; } if ((li = listitem_alloc()) == NULL) { vim_free(s); failed = TRUE; break; } li->li_tv.v_type = VAR_STRING; li->li_tv.v_lock = 0; li->li_tv.vval.v_string = s; list_append(rettv->vval.v_list, li); start = p + 1; /* step over newline */ if ((++cnt >= maxline && maxline >= 0) || readlen <= 0) break; } else if (*p == NUL) *p = '\n'; #ifdef FEAT_MBYTE /* Check for utf8 "bom"; U+FEFF is encoded as EF BB BF. Do this * when finding the BF and check the previous two bytes. */ else if (*p == 0xbf && enc_utf8 && !binary) { /* Find the two bytes before the 0xbf. If p is at buf, or buf * + 1, these may be in the "prev" string. */ char_u back1 = p >= buf + 1 ? p[-1] : prevlen >= 1 ? prev[prevlen - 1] : NUL; char_u back2 = p >= buf + 2 ? p[-2] : p == buf + 1 && prevlen >= 1 ? prev[prevlen - 1] : prevlen >= 2 ? prev[prevlen - 2] : NUL; if (back2 == 0xef && back1 == 0xbb) { char_u *dest = p - 2; /* Usually a BOM is at the beginning of a file, and so at * the beginning of a line; then we can just step over it. */ if (start == dest) start = p + 1; else { /* have to shuffle buf to close gap */ int adjust_prevlen = 0; if (dest < buf) { adjust_prevlen = (int)(buf - dest); /* must be 1 or 2 */ dest = buf; } if (readlen > p - buf + 1) mch_memmove(dest, p + 1, readlen - (p - buf) - 1); readlen -= 3 - adjust_prevlen; prevlen -= adjust_prevlen; p = dest - 1; } } } #endif } /* for */ if (failed || (cnt >= maxline && maxline >= 0) || readlen <= 0) break; if (start < p) { /* There's part of a line in buf, store it in "prev". */ if (p - start + prevlen >= prevsize) { /* need bigger "prev" buffer */ char_u *newprev; /* A common use case is ordinary text files and "prev" gets a * fragment of a line, so the first allocation is made * small, to avoid repeatedly 'allocing' large and * 'reallocing' small. */ if (prevsize == 0) prevsize = (long)(p - start); else { long grow50pc = (prevsize * 3) / 2; long growmin = (long)((p - start) * 2 + prevlen); prevsize = grow50pc > growmin ? grow50pc : growmin; } newprev = prev == NULL ? alloc(prevsize) : vim_realloc(prev, prevsize); if (newprev == NULL) { do_outofmem_msg((long_u)prevsize); failed = TRUE; break; } prev = newprev; } /* Add the line part to end of "prev". */ mch_memmove(prev + prevlen, start, p - start); prevlen += (long)(p - start); } } /* while */ /* * For a negative line count use only the lines at the end of the file, * free the rest. */ if (!failed && maxline < 0) while (cnt > -maxline) { listitem_remove(rettv->vval.v_list, rettv->vval.v_list->lv_first); --cnt; } if (failed) { list_free(rettv->vval.v_list, TRUE); /* readfile doc says an empty list is returned on error */ rettv->vval.v_list = list_alloc(); } vim_free(prev); fclose(fd); } #if defined(FEAT_RELTIME) static int list2proftime(typval_T *arg, proftime_T *tm); /* * Convert a List to proftime_T. * Return FAIL when there is something wrong. */ static int list2proftime(arg, tm) typval_T *arg; proftime_T *tm; { long n1, n2; int error = FALSE; if (arg->v_type != VAR_LIST || arg->vval.v_list == NULL || arg->vval.v_list->lv_len != 2) return FAIL; n1 = list_find_nr(arg->vval.v_list, 0L, &error); n2 = list_find_nr(arg->vval.v_list, 1L, &error); # ifdef WIN3264 tm->HighPart = n1; tm->LowPart = n2; # else tm->tv_sec = n1; tm->tv_usec = n2; # endif return error ? FAIL : OK; } #endif /* FEAT_RELTIME */ /* * "reltime()" function */ static void f_reltime(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_RELTIME proftime_T res; proftime_T start; if (argvars[0].v_type == VAR_UNKNOWN) { /* No arguments: get current time. */ profile_start(&res); } else if (argvars[1].v_type == VAR_UNKNOWN) { if (list2proftime(&argvars[0], &res) == FAIL) return; profile_end(&res); } else { /* Two arguments: compute the difference. */ if (list2proftime(&argvars[0], &start) == FAIL || list2proftime(&argvars[1], &res) == FAIL) return; profile_sub(&res, &start); } if (rettv_list_alloc(rettv) == OK) { long n1, n2; # ifdef WIN3264 n1 = res.HighPart; n2 = res.LowPart; # else n1 = res.tv_sec; n2 = res.tv_usec; # endif list_append_number(rettv->vval.v_list, (varnumber_T)n1); list_append_number(rettv->vval.v_list, (varnumber_T)n2); } #endif } /* * "reltimestr()" function */ static void f_reltimestr(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifdef FEAT_RELTIME proftime_T tm; #endif rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_RELTIME if (list2proftime(&argvars[0], &tm) == OK) rettv->vval.v_string = vim_strsave((char_u *)profile_msg(&tm)); #endif } #if defined(FEAT_CLIENTSERVER) && defined(FEAT_X11) static void make_connection(void); static int check_connection(void); static void make_connection() { if (X_DISPLAY == NULL # ifdef FEAT_GUI && !gui.in_use # endif ) { x_force_connect = TRUE; setup_term_clip(); x_force_connect = FALSE; } } static int check_connection() { make_connection(); if (X_DISPLAY == NULL) { EMSG(_("E240: No connection to Vim server")); return FAIL; } return OK; } #endif #ifdef FEAT_CLIENTSERVER static void remote_common(typval_T *argvars, typval_T *rettv, int expr); static void remote_common(argvars, rettv, expr) typval_T *argvars; typval_T *rettv; int expr; { char_u *server_name; char_u *keys; char_u *r = NULL; char_u buf[NUMBUFLEN]; # ifdef WIN32 HWND w; # else Window w; # endif if (check_restricted() || check_secure()) return; # ifdef FEAT_X11 if (check_connection() == FAIL) return; # endif server_name = get_tv_string_chk(&argvars[0]); if (server_name == NULL) return; /* type error; errmsg already given */ keys = get_tv_string_buf(&argvars[1], buf); # ifdef WIN32 if (serverSendToVim(server_name, keys, &r, &w, expr, TRUE) < 0) # else if (serverSendToVim(X_DISPLAY, server_name, keys, &r, &w, expr, 0, TRUE) < 0) # endif { if (r != NULL) EMSG(r); /* sending worked but evaluation failed */ else EMSG2(_("E241: Unable to send to %s"), server_name); return; } rettv->vval.v_string = r; if (argvars[2].v_type != VAR_UNKNOWN) { dictitem_T v; char_u str[30]; char_u *idvar; sprintf((char *)str, PRINTF_HEX_LONG_U, (long_u)w); v.di_tv.v_type = VAR_STRING; v.di_tv.vval.v_string = vim_strsave(str); idvar = get_tv_string_chk(&argvars[2]); if (idvar != NULL) set_var(idvar, &v.di_tv, FALSE); vim_free(v.di_tv.vval.v_string); } } #endif /* * "remote_expr()" function */ static void f_remote_expr(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_CLIENTSERVER remote_common(argvars, rettv, TRUE); #endif } /* * "remote_foreground()" function */ static void f_remote_foreground(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_CLIENTSERVER # ifdef WIN32 /* On Win32 it's done in this application. */ { char_u *server_name = get_tv_string_chk(&argvars[0]); if (server_name != NULL) serverForeground(server_name); } # else /* Send a foreground() expression to the server. */ argvars[1].v_type = VAR_STRING; argvars[1].vval.v_string = vim_strsave((char_u *)"foreground()"); argvars[2].v_type = VAR_UNKNOWN; remote_common(argvars, rettv, TRUE); vim_free(argvars[1].vval.v_string); # endif #endif } static void f_remote_peek(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifdef FEAT_CLIENTSERVER dictitem_T v; char_u *s = NULL; # ifdef WIN32 long_u n = 0; # endif char_u *serverid; if (check_restricted() || check_secure()) { rettv->vval.v_number = -1; return; } serverid = get_tv_string_chk(&argvars[0]); if (serverid == NULL) { rettv->vval.v_number = -1; return; /* type error; errmsg already given */ } # ifdef WIN32 sscanf(serverid, SCANF_HEX_LONG_U, &n); if (n == 0) rettv->vval.v_number = -1; else { s = serverGetReply((HWND)n, FALSE, FALSE, FALSE); rettv->vval.v_number = (s != NULL); } # else if (check_connection() == FAIL) return; rettv->vval.v_number = serverPeekReply(X_DISPLAY, serverStrToWin(serverid), &s); # endif if (argvars[1].v_type != VAR_UNKNOWN && rettv->vval.v_number > 0) { char_u *retvar; v.di_tv.v_type = VAR_STRING; v.di_tv.vval.v_string = vim_strsave(s); retvar = get_tv_string_chk(&argvars[1]); if (retvar != NULL) set_var(retvar, &v.di_tv, FALSE); vim_free(v.di_tv.vval.v_string); } #else rettv->vval.v_number = -1; #endif } static void f_remote_read(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { char_u *r = NULL; #ifdef FEAT_CLIENTSERVER char_u *serverid = get_tv_string_chk(&argvars[0]); if (serverid != NULL && !check_restricted() && !check_secure()) { # ifdef WIN32 /* The server's HWND is encoded in the 'id' parameter */ long_u n = 0; sscanf(serverid, SCANF_HEX_LONG_U, &n); if (n != 0) r = serverGetReply((HWND)n, FALSE, TRUE, TRUE); if (r == NULL) # else if (check_connection() == FAIL || serverReadReply(X_DISPLAY, serverStrToWin(serverid), &r, FALSE) < 0) # endif EMSG(_("E277: Unable to read a server reply")); } #endif rettv->v_type = VAR_STRING; rettv->vval.v_string = r; } /* * "remote_send()" function */ static void f_remote_send(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_CLIENTSERVER remote_common(argvars, rettv, FALSE); #endif } /* * "remove()" function */ static void f_remove(argvars, rettv) typval_T *argvars; typval_T *rettv; { list_T *l; listitem_T *item, *item2; listitem_T *li; long idx; long end; char_u *key; dict_T *d; dictitem_T *di; char_u *arg_errmsg = (char_u *)N_("remove() argument"); if (argvars[0].v_type == VAR_DICT) { if (argvars[2].v_type != VAR_UNKNOWN) EMSG2(_(e_toomanyarg), "remove()"); else if ((d = argvars[0].vval.v_dict) != NULL && !tv_check_lock(d->dv_lock, arg_errmsg, TRUE)) { key = get_tv_string_chk(&argvars[1]); if (key != NULL) { di = dict_find(d, key, -1); if (di == NULL) EMSG2(_(e_dictkey), key); else if (!var_check_fixed(di->di_flags, arg_errmsg, TRUE) && !var_check_ro(di->di_flags, arg_errmsg, TRUE)) { *rettv = di->di_tv; init_tv(&di->di_tv); dictitem_remove(d, di); } } } } else if (argvars[0].v_type != VAR_LIST) EMSG2(_(e_listdictarg), "remove()"); else if ((l = argvars[0].vval.v_list) != NULL && !tv_check_lock(l->lv_lock, arg_errmsg, TRUE)) { int error = FALSE; idx = get_tv_number_chk(&argvars[1], &error); if (error) ; /* type error: do nothing, errmsg already given */ else if ((item = list_find(l, idx)) == NULL) EMSGN(_(e_listidx), idx); else { if (argvars[2].v_type == VAR_UNKNOWN) { /* Remove one item, return its value. */ vimlist_remove(l, item, item); *rettv = item->li_tv; vim_free(item); } else { /* Remove range of items, return list with values. */ end = get_tv_number_chk(&argvars[2], &error); if (error) ; /* type error: do nothing */ else if ((item2 = list_find(l, end)) == NULL) EMSGN(_(e_listidx), end); else { int cnt = 0; for (li = item; li != NULL; li = li->li_next) { ++cnt; if (li == item2) break; } if (li == NULL) /* didn't find "item2" after "item" */ EMSG(_(e_invrange)); else { vimlist_remove(l, item, item2); if (rettv_list_alloc(rettv) == OK) { l = rettv->vval.v_list; l->lv_first = item; l->lv_last = item2; item->li_prev = NULL; item2->li_next = NULL; l->lv_len = cnt; } } } } } } } /* * "rename({from}, {to})" function */ static void f_rename(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u buf[NUMBUFLEN]; if (check_restricted() || check_secure()) rettv->vval.v_number = -1; else rettv->vval.v_number = vim_rename(get_tv_string(&argvars[0]), get_tv_string_buf(&argvars[1], buf)); } /* * "repeat()" function */ static void f_repeat(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p; int n; int slen; int len; char_u *r; int i; n = get_tv_number(&argvars[1]); if (argvars[0].v_type == VAR_LIST) { if (rettv_list_alloc(rettv) == OK && argvars[0].vval.v_list != NULL) while (n-- > 0) if (list_extend(rettv->vval.v_list, argvars[0].vval.v_list, NULL) == FAIL) break; } else { p = get_tv_string(&argvars[0]); rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; slen = (int)STRLEN(p); len = slen * n; if (len <= 0) return; r = alloc(len + 1); if (r != NULL) { for (i = 0; i < n; i++) mch_memmove(r + i * slen, p, (size_t)slen); r[len] = NUL; } rettv->vval.v_string = r; } } /* * "resolve()" function */ static void f_resolve(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p; #ifdef HAVE_READLINK char_u *buf = NULL; #endif p = get_tv_string(&argvars[0]); #ifdef FEAT_SHORTCUT { char_u *v = NULL; v = mch_resolve_shortcut(p); if (v != NULL) rettv->vval.v_string = v; else rettv->vval.v_string = vim_strsave(p); } #else # ifdef HAVE_READLINK { char_u *cpy; int len; char_u *remain = NULL; char_u *q; int is_relative_to_current = FALSE; int has_trailing_pathsep = FALSE; int limit = 100; p = vim_strsave(p); if (p[0] == '.' && (vim_ispathsep(p[1]) || (p[1] == '.' && (vim_ispathsep(p[2]))))) is_relative_to_current = TRUE; len = STRLEN(p); if (len > 0 && after_pathsep(p, p + len)) { has_trailing_pathsep = TRUE; p[len - 1] = NUL; /* the trailing slash breaks readlink() */ } q = getnextcomp(p); if (*q != NUL) { /* Separate the first path component in "p", and keep the * remainder (beginning with the path separator). */ remain = vim_strsave(q - 1); q[-1] = NUL; } buf = alloc(MAXPATHL + 1); if (buf == NULL) goto fail; for (;;) { for (;;) { len = readlink((char *)p, (char *)buf, MAXPATHL); if (len <= 0) break; buf[len] = NUL; if (limit-- == 0) { vim_free(p); vim_free(remain); EMSG(_("E655: Too many symbolic links (cycle?)")); rettv->vval.v_string = NULL; goto fail; } /* Ensure that the result will have a trailing path separator * if the argument has one. */ if (remain == NULL && has_trailing_pathsep) add_pathsep(buf); /* Separate the first path component in the link value and * concatenate the remainders. */ q = getnextcomp(vim_ispathsep(*buf) ? buf + 1 : buf); if (*q != NUL) { if (remain == NULL) remain = vim_strsave(q - 1); else { cpy = concat_str(q - 1, remain); if (cpy != NULL) { vim_free(remain); remain = cpy; } } q[-1] = NUL; } q = gettail(p); if (q > p && *q == NUL) { /* Ignore trailing path separator. */ q[-1] = NUL; q = gettail(p); } if (q > p && !mch_isFullName(buf)) { /* symlink is relative to directory of argument */ cpy = alloc((unsigned)(STRLEN(p) + STRLEN(buf) + 1)); if (cpy != NULL) { STRCPY(cpy, p); STRCPY(gettail(cpy), buf); vim_free(p); p = cpy; } } else { vim_free(p); p = vim_strsave(buf); } } if (remain == NULL) break; /* Append the first path component of "remain" to "p". */ q = getnextcomp(remain + 1); len = q - remain - (*q != NUL); cpy = vim_strnsave(p, STRLEN(p) + len); if (cpy != NULL) { STRNCAT(cpy, remain, len); vim_free(p); p = cpy; } /* Shorten "remain". */ if (*q != NUL) STRMOVE(remain, q - 1); else { vim_free(remain); remain = NULL; } } /* If the result is a relative path name, make it explicitly relative to * the current directory if and only if the argument had this form. */ if (!vim_ispathsep(*p)) { if (is_relative_to_current && *p != NUL && !(p[0] == '.' && (p[1] == NUL || vim_ispathsep(p[1]) || (p[1] == '.' && (p[2] == NUL || vim_ispathsep(p[2])))))) { /* Prepend "./". */ cpy = concat_str((char_u *)"./", p); if (cpy != NULL) { vim_free(p); p = cpy; } } else if (!is_relative_to_current) { /* Strip leading "./". */ q = p; while (q[0] == '.' && vim_ispathsep(q[1])) q += 2; if (q > p) STRMOVE(p, p + 2); } } /* Ensure that the result will have no trailing path separator * if the argument had none. But keep "/" or "//". */ if (!has_trailing_pathsep) { q = p + STRLEN(p); if (after_pathsep(p, q)) *gettail_sep(p) = NUL; } rettv->vval.v_string = p; } # else rettv->vval.v_string = vim_strsave(p); # endif #endif simplify_filename(rettv->vval.v_string); #ifdef HAVE_READLINK fail: vim_free(buf); #endif rettv->v_type = VAR_STRING; } /* * "reverse({list})" function */ static void f_reverse(argvars, rettv) typval_T *argvars; typval_T *rettv; { list_T *l; listitem_T *li, *ni; if (argvars[0].v_type != VAR_LIST) EMSG2(_(e_listarg), "reverse()"); else if ((l = argvars[0].vval.v_list) != NULL && !tv_check_lock(l->lv_lock, (char_u *)N_("reverse() argument"), TRUE)) { li = l->lv_last; l->lv_first = l->lv_last = NULL; l->lv_len = 0; while (li != NULL) { ni = li->li_prev; list_append(l, li); li = ni; } rettv->vval.v_list = l; rettv->v_type = VAR_LIST; ++l->lv_refcount; l->lv_idx = l->lv_len - l->lv_idx - 1; } } #define SP_NOMOVE 0x01 /* don't move cursor */ #define SP_REPEAT 0x02 /* repeat to find outer pair */ #define SP_RETCOUNT 0x04 /* return matchcount */ #define SP_SETPCMARK 0x08 /* set previous context mark */ #define SP_START 0x10 /* accept match at start position */ #define SP_SUBPAT 0x20 /* return nr of matching sub-pattern */ #define SP_END 0x40 /* leave cursor at end of match */ #define SP_COLUMN 0x80 /* start at cursor column */ static int get_search_arg(typval_T *varp, int *flagsp); /* * Get flags for a search function. * Possibly sets "p_ws". * Returns BACKWARD, FORWARD or zero (for an error). */ static int get_search_arg(varp, flagsp) typval_T *varp; int *flagsp; { int dir = FORWARD; char_u *flags; char_u nbuf[NUMBUFLEN]; int mask; if (varp->v_type != VAR_UNKNOWN) { flags = get_tv_string_buf_chk(varp, nbuf); if (flags == NULL) return 0; /* type error; errmsg already given */ while (*flags != NUL) { switch (*flags) { case 'b': dir = BACKWARD; break; case 'w': p_ws = TRUE; break; case 'W': p_ws = FALSE; break; default: mask = 0; if (flagsp != NULL) switch (*flags) { case 'c': mask = SP_START; break; case 'e': mask = SP_END; break; case 'm': mask = SP_RETCOUNT; break; case 'n': mask = SP_NOMOVE; break; case 'p': mask = SP_SUBPAT; break; case 'r': mask = SP_REPEAT; break; case 's': mask = SP_SETPCMARK; break; case 'z': mask = SP_COLUMN; break; } if (mask == 0) { EMSG2(_(e_invarg2), flags); dir = 0; } else *flagsp |= mask; } if (dir == 0) break; ++flags; } } return dir; } /* * Shared by search() and searchpos() functions. */ static int search_cmn(argvars, match_pos, flagsp) typval_T *argvars; pos_T *match_pos; int *flagsp; { int flags; char_u *pat; pos_T pos; pos_T save_cursor; int save_p_ws = p_ws; int dir; int retval = 0; /* default: FAIL */ long lnum_stop = 0; proftime_T tm; #ifdef FEAT_RELTIME long time_limit = 0; #endif int options = SEARCH_KEEP; int subpatnum; pat = get_tv_string(&argvars[0]); dir = get_search_arg(&argvars[1], flagsp); /* may set p_ws */ if (dir == 0) goto theend; flags = *flagsp; if (flags & SP_START) options |= SEARCH_START; if (flags & SP_END) options |= SEARCH_END; if (flags & SP_COLUMN) options |= SEARCH_COL; /* Optional arguments: line number to stop searching and timeout. */ if (argvars[1].v_type != VAR_UNKNOWN && argvars[2].v_type != VAR_UNKNOWN) { lnum_stop = get_tv_number_chk(&argvars[2], NULL); if (lnum_stop < 0) goto theend; #ifdef FEAT_RELTIME if (argvars[3].v_type != VAR_UNKNOWN) { time_limit = get_tv_number_chk(&argvars[3], NULL); if (time_limit < 0) goto theend; } #endif } #ifdef FEAT_RELTIME /* Set the time limit, if there is one. */ profile_setlimit(time_limit, &tm); #endif /* * This function does not accept SP_REPEAT and SP_RETCOUNT flags. * Check to make sure only those flags are set. * Also, Only the SP_NOMOVE or the SP_SETPCMARK flag can be set. Both * flags cannot be set. Check for that condition also. */ if (((flags & (SP_REPEAT | SP_RETCOUNT)) != 0) || ((flags & SP_NOMOVE) && (flags & SP_SETPCMARK))) { EMSG2(_(e_invarg2), get_tv_string(&argvars[1])); goto theend; } pos = save_cursor = curwin->w_cursor; subpatnum = searchit(curwin, curbuf, &pos, dir, pat, 1L, options, RE_SEARCH, (linenr_T)lnum_stop, &tm); if (subpatnum != FAIL) { if (flags & SP_SUBPAT) retval = subpatnum; else retval = pos.lnum; if (flags & SP_SETPCMARK) setpcmark(); curwin->w_cursor = pos; if (match_pos != NULL) { /* Store the match cursor position */ match_pos->lnum = pos.lnum; match_pos->col = pos.col + 1; } /* "/$" will put the cursor after the end of the line, may need to * correct that here */ check_cursor(); } /* If 'n' flag is used: restore cursor position. */ if (flags & SP_NOMOVE) curwin->w_cursor = save_cursor; else curwin->w_set_curswant = TRUE; theend: p_ws = save_p_ws; return retval; } #ifdef FEAT_FLOAT /* * round() is not in C90, use ceil() or floor() instead. */ float_T vim_round(f) float_T f; { return f > 0 ? floor(f + 0.5) : ceil(f - 0.5); } /* * "round({float})" function */ static void f_round(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = vim_round(f); else rettv->vval.v_float = 0.0; } #endif /* * "screenattr()" function */ static void f_screenattr(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { int row; int col; int c; row = get_tv_number_chk(&argvars[0], NULL) - 1; col = get_tv_number_chk(&argvars[1], NULL) - 1; if (row < 0 || row >= screen_Rows || col < 0 || col >= screen_Columns) c = -1; else c = ScreenAttrs[LineOffset[row] + col]; rettv->vval.v_number = c; } /* * "screenchar()" function */ static void f_screenchar(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { int row; int col; int off; int c; row = get_tv_number_chk(&argvars[0], NULL) - 1; col = get_tv_number_chk(&argvars[1], NULL) - 1; if (row < 0 || row >= screen_Rows || col < 0 || col >= screen_Columns) c = -1; else { off = LineOffset[row] + col; #ifdef FEAT_MBYTE if (enc_utf8 && ScreenLinesUC[off] != 0) c = ScreenLinesUC[off]; else #endif c = ScreenLines[off]; } rettv->vval.v_number = c; } /* * "screencol()" function * * First column is 1 to be consistent with virtcol(). */ static void f_screencol(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->vval.v_number = screen_screencol() + 1; } /* * "screenrow()" function */ static void f_screenrow(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->vval.v_number = screen_screenrow() + 1; } /* * "search()" function */ static void f_search(argvars, rettv) typval_T *argvars; typval_T *rettv; { int flags = 0; rettv->vval.v_number = search_cmn(argvars, NULL, &flags); } /* * "searchdecl()" function */ static void f_searchdecl(argvars, rettv) typval_T *argvars; typval_T *rettv; { int locally = 1; int thisblock = 0; int error = FALSE; char_u *name; rettv->vval.v_number = 1; /* default: FAIL */ name = get_tv_string_chk(&argvars[0]); if (argvars[1].v_type != VAR_UNKNOWN) { locally = get_tv_number_chk(&argvars[1], &error) == 0; if (!error && argvars[2].v_type != VAR_UNKNOWN) thisblock = get_tv_number_chk(&argvars[2], &error) != 0; } if (!error && name != NULL) rettv->vval.v_number = find_decl(name, (int)STRLEN(name), locally, thisblock, SEARCH_KEEP) == FAIL; } /* * Used by searchpair() and searchpairpos() */ static int searchpair_cmn(argvars, match_pos) typval_T *argvars; pos_T *match_pos; { char_u *spat, *mpat, *epat; char_u *skip; int save_p_ws = p_ws; int dir; int flags = 0; char_u nbuf1[NUMBUFLEN]; char_u nbuf2[NUMBUFLEN]; char_u nbuf3[NUMBUFLEN]; int retval = 0; /* default: FAIL */ long lnum_stop = 0; long time_limit = 0; /* Get the three pattern arguments: start, middle, end. */ spat = get_tv_string_chk(&argvars[0]); mpat = get_tv_string_buf_chk(&argvars[1], nbuf1); epat = get_tv_string_buf_chk(&argvars[2], nbuf2); if (spat == NULL || mpat == NULL || epat == NULL) goto theend; /* type error */ /* Handle the optional fourth argument: flags */ dir = get_search_arg(&argvars[3], &flags); /* may set p_ws */ if (dir == 0) goto theend; /* Don't accept SP_END or SP_SUBPAT. * Only one of the SP_NOMOVE or SP_SETPCMARK flags can be set. */ if ((flags & (SP_END | SP_SUBPAT)) != 0 || ((flags & SP_NOMOVE) && (flags & SP_SETPCMARK))) { EMSG2(_(e_invarg2), get_tv_string(&argvars[3])); goto theend; } /* Using 'r' implies 'W', otherwise it doesn't work. */ if (flags & SP_REPEAT) p_ws = FALSE; /* Optional fifth argument: skip expression */ if (argvars[3].v_type == VAR_UNKNOWN || argvars[4].v_type == VAR_UNKNOWN) skip = (char_u *)""; else { skip = get_tv_string_buf_chk(&argvars[4], nbuf3); if (argvars[5].v_type != VAR_UNKNOWN) { lnum_stop = get_tv_number_chk(&argvars[5], NULL); if (lnum_stop < 0) goto theend; #ifdef FEAT_RELTIME if (argvars[6].v_type != VAR_UNKNOWN) { time_limit = get_tv_number_chk(&argvars[6], NULL); if (time_limit < 0) goto theend; } #endif } } if (skip == NULL) goto theend; /* type error */ retval = do_searchpair(spat, mpat, epat, dir, skip, flags, match_pos, lnum_stop, time_limit); theend: p_ws = save_p_ws; return retval; } /* * "searchpair()" function */ static void f_searchpair(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = searchpair_cmn(argvars, NULL); } /* * "searchpairpos()" function */ static void f_searchpairpos(argvars, rettv) typval_T *argvars; typval_T *rettv; { pos_T match_pos; int lnum = 0; int col = 0; if (rettv_list_alloc(rettv) == FAIL) return; if (searchpair_cmn(argvars, &match_pos) > 0) { lnum = match_pos.lnum; col = match_pos.col; } list_append_number(rettv->vval.v_list, (varnumber_T)lnum); list_append_number(rettv->vval.v_list, (varnumber_T)col); } /* * Search for a start/middle/end thing. * Used by searchpair(), see its documentation for the details. * Returns 0 or -1 for no match, */ long do_searchpair(spat, mpat, epat, dir, skip, flags, match_pos, lnum_stop, time_limit) char_u *spat; /* start pattern */ char_u *mpat; /* middle pattern */ char_u *epat; /* end pattern */ int dir; /* BACKWARD or FORWARD */ char_u *skip; /* skip expression */ int flags; /* SP_SETPCMARK and other SP_ values */ pos_T *match_pos; linenr_T lnum_stop; /* stop at this line if not zero */ long time_limit UNUSED; /* stop after this many msec */ { char_u *save_cpo; char_u *pat, *pat2 = NULL, *pat3 = NULL; long retval = 0; pos_T pos; pos_T firstpos; pos_T foundpos; pos_T save_cursor; pos_T save_pos; int n; int r; int nest = 1; int err; int options = SEARCH_KEEP; proftime_T tm; /* Make 'cpoptions' empty, the 'l' flag should not be used here. */ save_cpo = p_cpo; p_cpo = empty_option; #ifdef FEAT_RELTIME /* Set the time limit, if there is one. */ profile_setlimit(time_limit, &tm); #endif /* Make two search patterns: start/end (pat2, for in nested pairs) and * start/middle/end (pat3, for the top pair). */ pat2 = alloc((unsigned)(STRLEN(spat) + STRLEN(epat) + 15)); pat3 = alloc((unsigned)(STRLEN(spat) + STRLEN(mpat) + STRLEN(epat) + 23)); if (pat2 == NULL || pat3 == NULL) goto theend; sprintf((char *)pat2, "\\(%s\\m\\)\\|\\(%s\\m\\)", spat, epat); if (*mpat == NUL) STRCPY(pat3, pat2); else sprintf((char *)pat3, "\\(%s\\m\\)\\|\\(%s\\m\\)\\|\\(%s\\m\\)", spat, epat, mpat); if (flags & SP_START) options |= SEARCH_START; save_cursor = curwin->w_cursor; pos = curwin->w_cursor; clearpos(&firstpos); clearpos(&foundpos); pat = pat3; for (;;) { n = searchit(curwin, curbuf, &pos, dir, pat, 1L, options, RE_SEARCH, lnum_stop, &tm); if (n == FAIL || (firstpos.lnum != 0 && equalpos(pos, firstpos))) /* didn't find it or found the first match again: FAIL */ break; if (firstpos.lnum == 0) firstpos = pos; if (equalpos(pos, foundpos)) { /* Found the same position again. Can happen with a pattern that * has "\zs" at the end and searching backwards. Advance one * character and try again. */ if (dir == BACKWARD) decl(&pos); else incl(&pos); } foundpos = pos; /* clear the start flag to avoid getting stuck here */ options &= ~SEARCH_START; /* If the skip pattern matches, ignore this match. */ if (*skip != NUL) { save_pos = curwin->w_cursor; curwin->w_cursor = pos; r = eval_to_bool(skip, &err, NULL, FALSE); curwin->w_cursor = save_pos; if (err) { /* Evaluating {skip} caused an error, break here. */ curwin->w_cursor = save_cursor; retval = -1; break; } if (r) continue; } if ((dir == BACKWARD && n == 3) || (dir == FORWARD && n == 2)) { /* Found end when searching backwards or start when searching * forward: nested pair. */ ++nest; pat = pat2; /* nested, don't search for middle */ } else { /* Found end when searching forward or start when searching * backward: end of (nested) pair; or found middle in outer pair. */ if (--nest == 1) pat = pat3; /* outer level, search for middle */ } if (nest == 0) { /* Found the match: return matchcount or line number. */ if (flags & SP_RETCOUNT) ++retval; else retval = pos.lnum; if (flags & SP_SETPCMARK) setpcmark(); curwin->w_cursor = pos; if (!(flags & SP_REPEAT)) break; nest = 1; /* search for next unmatched */ } } if (match_pos != NULL) { /* Store the match cursor position */ match_pos->lnum = curwin->w_cursor.lnum; match_pos->col = curwin->w_cursor.col + 1; } /* If 'n' flag is used or search failed: restore cursor position. */ if ((flags & SP_NOMOVE) || retval == 0) curwin->w_cursor = save_cursor; theend: vim_free(pat2); vim_free(pat3); if (p_cpo == empty_option) p_cpo = save_cpo; else /* Darn, evaluating the {skip} expression changed the value. */ free_string_option(save_cpo); return retval; } /* * "searchpos()" function */ static void f_searchpos(argvars, rettv) typval_T *argvars; typval_T *rettv; { pos_T match_pos; int lnum = 0; int col = 0; int n; int flags = 0; if (rettv_list_alloc(rettv) == FAIL) return; n = search_cmn(argvars, &match_pos, &flags); if (n > 0) { lnum = match_pos.lnum; col = match_pos.col; } list_append_number(rettv->vval.v_list, (varnumber_T)lnum); list_append_number(rettv->vval.v_list, (varnumber_T)col); if (flags & SP_SUBPAT) list_append_number(rettv->vval.v_list, (varnumber_T)n); } #ifdef FEAT_CHANNEL /* * common for "sendexpr()" and "sendraw()" * Returns the channel index if the caller should read the response. * Otherwise returns -1. */ static int send_common(typval_T *argvars, char_u *text, char *fun) { int ch_idx; char_u *callback = NULL; ch_idx = get_channel_arg(&argvars[0]); if (ch_idx < 0) return -1; if (argvars[2].v_type != VAR_UNKNOWN) { callback = get_callback(&argvars[2]); if (callback == NULL) return -1; } /* Set the callback or clear it. An empty callback means no callback and * not reading the response. */ channel_set_req_callback(ch_idx, callback != NULL && *callback == NUL ? NULL : callback); if (callback == NULL) channel_will_block(ch_idx); if (channel_send(ch_idx, text, fun) == OK && callback == NULL) return ch_idx; return -1; } /* * "sendexpr()" function */ static void f_sendexpr(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *text; char_u *resp; typval_T nrtv; typval_T listtv; int ch_idx; /* return an empty string by default */ rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; nrtv.v_type = VAR_NUMBER; nrtv.vval.v_number = channel_get_id(); if (rettv_list_alloc(&listtv) == FAIL) return; if (list_append_tv(listtv.vval.v_list, &nrtv) == FAIL || list_append_tv(listtv.vval.v_list, &argvars[1]) == FAIL) { list_unref(listtv.vval.v_list); return; } text = json_encode(&listtv); list_unref(listtv.vval.v_list); ch_idx = send_common(argvars, text, "sendexpr"); if (ch_idx >= 0) { /* TODO: read until the whole JSON message is received */ /* TODO: only use the message with the right message ID */ resp = channel_read_block(ch_idx); if (resp != NULL) { channel_decode_json(resp, rettv); vim_free(resp); } } } /* * "sendraw()" function */ static void f_sendraw(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u buf[NUMBUFLEN]; char_u *text; int ch_idx; /* return an empty string by default */ rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; text = get_tv_string_buf(&argvars[1], buf); ch_idx = send_common(argvars, text, "sendraw"); if (ch_idx >= 0) rettv->vval.v_string = channel_read_block(ch_idx); } #endif static void f_server2client(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifdef FEAT_CLIENTSERVER char_u buf[NUMBUFLEN]; char_u *server = get_tv_string_chk(&argvars[0]); char_u *reply = get_tv_string_buf_chk(&argvars[1], buf); rettv->vval.v_number = -1; if (server == NULL || reply == NULL) return; if (check_restricted() || check_secure()) return; # ifdef FEAT_X11 if (check_connection() == FAIL) return; # endif if (serverSendReply(server, reply) < 0) { EMSG(_("E258: Unable to send to client")); return; } rettv->vval.v_number = 0; #else rettv->vval.v_number = -1; #endif } static void f_serverlist(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { char_u *r = NULL; #ifdef FEAT_CLIENTSERVER # ifdef WIN32 r = serverGetVimNames(); # else make_connection(); if (X_DISPLAY != NULL) r = serverGetVimNames(X_DISPLAY); # endif #endif rettv->v_type = VAR_STRING; rettv->vval.v_string = r; } /* * "setbufvar()" function */ static void f_setbufvar(argvars, rettv) typval_T *argvars; typval_T *rettv UNUSED; { buf_T *buf; aco_save_T aco; char_u *varname, *bufvarname; typval_T *varp; char_u nbuf[NUMBUFLEN]; if (check_restricted() || check_secure()) return; (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */ varname = get_tv_string_chk(&argvars[1]); buf = get_buf_tv(&argvars[0], FALSE); varp = &argvars[2]; if (buf != NULL && varname != NULL && varp != NULL) { /* set curbuf to be our buf, temporarily */ aucmd_prepbuf(&aco, buf); if (*varname == '&') { long numval; char_u *strval; int error = FALSE; ++varname; numval = get_tv_number_chk(varp, &error); strval = get_tv_string_buf_chk(varp, nbuf); if (!error && strval != NULL) set_option_value(varname, numval, strval, OPT_LOCAL); } else { bufvarname = alloc((unsigned)STRLEN(varname) + 3); if (bufvarname != NULL) { STRCPY(bufvarname, "b:"); STRCPY(bufvarname + 2, varname); set_var(bufvarname, varp, TRUE); vim_free(bufvarname); } } /* reset notion of buffer */ aucmd_restbuf(&aco); } } static void f_setcharsearch(argvars, rettv) typval_T *argvars; typval_T *rettv UNUSED; { dict_T *d; dictitem_T *di; char_u *csearch; if (argvars[0].v_type != VAR_DICT) { EMSG(_(e_dictreq)); return; } if ((d = argvars[0].vval.v_dict) != NULL) { csearch = get_dict_string(d, (char_u *)"char", FALSE); if (csearch != NULL) { #ifdef FEAT_MBYTE if (enc_utf8) { int pcc[MAX_MCO]; int c = utfc_ptr2char(csearch, pcc); set_last_csearch(c, csearch, utfc_ptr2len(csearch)); } else #endif set_last_csearch(PTR2CHAR(csearch), csearch, MB_PTR2LEN(csearch)); } di = dict_find(d, (char_u *)"forward", -1); if (di != NULL) set_csearch_direction(get_tv_number(&di->di_tv) ? FORWARD : BACKWARD); di = dict_find(d, (char_u *)"until", -1); if (di != NULL) set_csearch_until(!!get_tv_number(&di->di_tv)); } } /* * "setcmdpos()" function */ static void f_setcmdpos(argvars, rettv) typval_T *argvars; typval_T *rettv; { int pos = (int)get_tv_number(&argvars[0]) - 1; if (pos >= 0) rettv->vval.v_number = set_cmdline_pos(pos); } /* * "setline()" function */ static void f_setline(argvars, rettv) typval_T *argvars; typval_T *rettv; { linenr_T lnum; char_u *line = NULL; list_T *l = NULL; listitem_T *li = NULL; long added = 0; linenr_T lcount = curbuf->b_ml.ml_line_count; lnum = get_tv_lnum(&argvars[0]); if (argvars[1].v_type == VAR_LIST) { l = argvars[1].vval.v_list; li = l->lv_first; } else line = get_tv_string_chk(&argvars[1]); /* default result is zero == OK */ for (;;) { if (l != NULL) { /* list argument, get next string */ if (li == NULL) break; line = get_tv_string_chk(&li->li_tv); li = li->li_next; } rettv->vval.v_number = 1; /* FAIL */ if (line == NULL || lnum < 1 || lnum > curbuf->b_ml.ml_line_count + 1) break; /* When coming here from Insert mode, sync undo, so that this can be * undone separately from what was previously inserted. */ if (u_sync_once == 2) { u_sync_once = 1; /* notify that u_sync() was called */ u_sync(TRUE); } if (lnum <= curbuf->b_ml.ml_line_count) { /* existing line, replace it */ if (u_savesub(lnum) == OK && ml_replace(lnum, line, TRUE) == OK) { changed_bytes(lnum, 0); if (lnum == curwin->w_cursor.lnum) check_cursor_col(); rettv->vval.v_number = 0; /* OK */ } } else if (added > 0 || u_save(lnum - 1, lnum) == OK) { /* lnum is one past the last line, append the line */ ++added; if (ml_append(lnum - 1, line, (colnr_T)0, FALSE) == OK) rettv->vval.v_number = 0; /* OK */ } if (l == NULL) /* only one string argument */ break; ++lnum; } if (added > 0) appended_lines_mark(lcount, added); } static void set_qf_ll_list(win_T *wp, typval_T *list_arg, typval_T *action_arg, typval_T *rettv); /* * Used by "setqflist()" and "setloclist()" functions */ static void set_qf_ll_list(wp, list_arg, action_arg, rettv) win_T *wp UNUSED; typval_T *list_arg UNUSED; typval_T *action_arg UNUSED; typval_T *rettv; { #ifdef FEAT_QUICKFIX char_u *act; int action = ' '; #endif rettv->vval.v_number = -1; #ifdef FEAT_QUICKFIX if (list_arg->v_type != VAR_LIST) EMSG(_(e_listreq)); else { list_T *l = list_arg->vval.v_list; if (action_arg->v_type == VAR_STRING) { act = get_tv_string_chk(action_arg); if (act == NULL) return; /* type error; errmsg already given */ if (*act == 'a' || *act == 'r') action = *act; } if (l != NULL && set_errorlist(wp, l, action, (char_u *)(wp == NULL ? "setqflist()" : "setloclist()")) == OK) rettv->vval.v_number = 0; } #endif } /* * "setloclist()" function */ static void f_setloclist(argvars, rettv) typval_T *argvars; typval_T *rettv; { win_T *win; rettv->vval.v_number = -1; win = find_win_by_nr(&argvars[0], NULL); if (win != NULL) set_qf_ll_list(win, &argvars[1], &argvars[2], rettv); } /* * "setmatches()" function */ static void f_setmatches(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_SEARCH_EXTRA list_T *l; listitem_T *li; dict_T *d; list_T *s = NULL; rettv->vval.v_number = -1; if (argvars[0].v_type != VAR_LIST) { EMSG(_(e_listreq)); return; } if ((l = argvars[0].vval.v_list) != NULL) { /* To some extent make sure that we are dealing with a list from * "getmatches()". */ li = l->lv_first; while (li != NULL) { if (li->li_tv.v_type != VAR_DICT || (d = li->li_tv.vval.v_dict) == NULL) { EMSG(_(e_invarg)); return; } if (!(dict_find(d, (char_u *)"group", -1) != NULL && (dict_find(d, (char_u *)"pattern", -1) != NULL || dict_find(d, (char_u *)"pos1", -1) != NULL) && dict_find(d, (char_u *)"priority", -1) != NULL && dict_find(d, (char_u *)"id", -1) != NULL)) { EMSG(_(e_invarg)); return; } li = li->li_next; } clear_matches(curwin); li = l->lv_first; while (li != NULL) { int i = 0; char_u buf[5]; dictitem_T *di; char_u *group; int priority; int id; char_u *conceal; d = li->li_tv.vval.v_dict; if (dict_find(d, (char_u *)"pattern", -1) == NULL) { if (s == NULL) { s = list_alloc(); if (s == NULL) return; } /* match from matchaddpos() */ for (i = 1; i < 9; i++) { sprintf((char *)buf, (char *)"pos%d", i); if ((di = dict_find(d, (char_u *)buf, -1)) != NULL) { if (di->di_tv.v_type != VAR_LIST) return; list_append_tv(s, &di->di_tv); s->lv_refcount++; } else break; } } group = get_dict_string(d, (char_u *)"group", FALSE); priority = (int)get_dict_number(d, (char_u *)"priority"); id = (int)get_dict_number(d, (char_u *)"id"); conceal = dict_find(d, (char_u *)"conceal", -1) != NULL ? get_dict_string(d, (char_u *)"conceal", FALSE) : NULL; if (i == 0) { match_add(curwin, group, get_dict_string(d, (char_u *)"pattern", FALSE), priority, id, NULL, conceal); } else { match_add(curwin, group, NULL, priority, id, s, conceal); list_unref(s); s = NULL; } li = li->li_next; } rettv->vval.v_number = 0; } #endif } /* * "setpos()" function */ static void f_setpos(argvars, rettv) typval_T *argvars; typval_T *rettv; { pos_T pos; int fnum; char_u *name; colnr_T curswant = -1; rettv->vval.v_number = -1; name = get_tv_string_chk(argvars); if (name != NULL) { if (list2fpos(&argvars[1], &pos, &fnum, &curswant) == OK) { if (--pos.col < 0) pos.col = 0; if (name[0] == '.' && name[1] == NUL) { /* set cursor */ if (fnum == curbuf->b_fnum) { curwin->w_cursor = pos; if (curswant >= 0) { curwin->w_curswant = curswant - 1; curwin->w_set_curswant = FALSE; } check_cursor(); rettv->vval.v_number = 0; } else EMSG(_(e_invarg)); } else if (name[0] == '\'' && name[1] != NUL && name[2] == NUL) { /* set mark */ if (setmark_pos(name[1], &pos, fnum) == OK) rettv->vval.v_number = 0; } else EMSG(_(e_invarg)); } } } /* * "setqflist()" function */ static void f_setqflist(argvars, rettv) typval_T *argvars; typval_T *rettv; { set_qf_ll_list(NULL, &argvars[0], &argvars[1], rettv); } /* * "setreg()" function */ static void f_setreg(argvars, rettv) typval_T *argvars; typval_T *rettv; { int regname; char_u *strregname; char_u *stropt; char_u *strval; int append; char_u yank_type; long block_len; block_len = -1; yank_type = MAUTO; append = FALSE; strregname = get_tv_string_chk(argvars); rettv->vval.v_number = 1; /* FAIL is default */ if (strregname == NULL) return; /* type error; errmsg already given */ regname = *strregname; if (regname == 0 || regname == '@') regname = '"'; if (argvars[2].v_type != VAR_UNKNOWN) { stropt = get_tv_string_chk(&argvars[2]); if (stropt == NULL) return; /* type error */ for (; *stropt != NUL; ++stropt) switch (*stropt) { case 'a': case 'A': /* append */ append = TRUE; break; case 'v': case 'c': /* character-wise selection */ yank_type = MCHAR; break; case 'V': case 'l': /* line-wise selection */ yank_type = MLINE; break; case 'b': case Ctrl_V: /* block-wise selection */ yank_type = MBLOCK; if (VIM_ISDIGIT(stropt[1])) { ++stropt; block_len = getdigits(&stropt) - 1; --stropt; } break; } } if (argvars[1].v_type == VAR_LIST) { char_u **lstval; char_u **allocval; char_u buf[NUMBUFLEN]; char_u **curval; char_u **curallocval; int len = argvars[1].vval.v_list->lv_len; listitem_T *li; /* First half: use for pointers to result lines; second half: use for * pointers to allocated copies. */ lstval = (char_u **)alloc(sizeof(char_u *) * ((len + 1) * 2)); if (lstval == NULL) return; curval = lstval; allocval = lstval + len + 2; curallocval = allocval; for (li = argvars[1].vval.v_list->lv_first; li != NULL; li = li->li_next) { strval = get_tv_string_buf_chk(&li->li_tv, buf); if (strval == NULL) goto free_lstval; if (strval == buf) { /* Need to make a copy, next get_tv_string_buf_chk() will * overwrite the string. */ strval = vim_strsave(buf); if (strval == NULL) goto free_lstval; *curallocval++ = strval; } *curval++ = strval; } *curval++ = NULL; write_reg_contents_lst(regname, lstval, -1, append, yank_type, block_len); free_lstval: while (curallocval > allocval) vim_free(*--curallocval); vim_free(lstval); } else { strval = get_tv_string_chk(&argvars[1]); if (strval == NULL) return; write_reg_contents_ex(regname, strval, -1, append, yank_type, block_len); } rettv->vval.v_number = 0; } /* * "settabvar()" function */ static void f_settabvar(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_WINDOWS tabpage_T *save_curtab; tabpage_T *tp; #endif char_u *varname, *tabvarname; typval_T *varp; rettv->vval.v_number = 0; if (check_restricted() || check_secure()) return; #ifdef FEAT_WINDOWS tp = find_tabpage((int)get_tv_number_chk(&argvars[0], NULL)); #endif varname = get_tv_string_chk(&argvars[1]); varp = &argvars[2]; if (varname != NULL && varp != NULL #ifdef FEAT_WINDOWS && tp != NULL #endif ) { #ifdef FEAT_WINDOWS save_curtab = curtab; goto_tabpage_tp(tp, FALSE, FALSE); #endif tabvarname = alloc((unsigned)STRLEN(varname) + 3); if (tabvarname != NULL) { STRCPY(tabvarname, "t:"); STRCPY(tabvarname + 2, varname); set_var(tabvarname, varp, TRUE); vim_free(tabvarname); } #ifdef FEAT_WINDOWS /* Restore current tabpage */ if (valid_tabpage(save_curtab)) goto_tabpage_tp(save_curtab, FALSE, FALSE); #endif } } /* * "settabwinvar()" function */ static void f_settabwinvar(argvars, rettv) typval_T *argvars; typval_T *rettv; { setwinvar(argvars, rettv, 1); } /* * "setwinvar()" function */ static void f_setwinvar(argvars, rettv) typval_T *argvars; typval_T *rettv; { setwinvar(argvars, rettv, 0); } /* * "setwinvar()" and "settabwinvar()" functions */ static void setwinvar(argvars, rettv, off) typval_T *argvars; typval_T *rettv UNUSED; int off; { win_T *win; #ifdef FEAT_WINDOWS win_T *save_curwin; tabpage_T *save_curtab; int need_switch_win; #endif char_u *varname, *winvarname; typval_T *varp; char_u nbuf[NUMBUFLEN]; tabpage_T *tp = NULL; if (check_restricted() || check_secure()) return; #ifdef FEAT_WINDOWS if (off == 1) tp = find_tabpage((int)get_tv_number_chk(&argvars[0], NULL)); else tp = curtab; #endif win = find_win_by_nr(&argvars[off], tp); varname = get_tv_string_chk(&argvars[off + 1]); varp = &argvars[off + 2]; if (win != NULL && varname != NULL && varp != NULL) { #ifdef FEAT_WINDOWS need_switch_win = !(tp == curtab && win == curwin); if (!need_switch_win || switch_win(&save_curwin, &save_curtab, win, tp, TRUE) == OK) #endif { if (*varname == '&') { long numval; char_u *strval; int error = FALSE; ++varname; numval = get_tv_number_chk(varp, &error); strval = get_tv_string_buf_chk(varp, nbuf); if (!error && strval != NULL) set_option_value(varname, numval, strval, OPT_LOCAL); } else { winvarname = alloc((unsigned)STRLEN(varname) + 3); if (winvarname != NULL) { STRCPY(winvarname, "w:"); STRCPY(winvarname + 2, varname); set_var(winvarname, varp, TRUE); vim_free(winvarname); } } } #ifdef FEAT_WINDOWS if (need_switch_win) restore_win(save_curwin, save_curtab, TRUE); #endif } } #ifdef FEAT_CRYPT /* * "sha256({string})" function */ static void f_sha256(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p; p = get_tv_string(&argvars[0]); rettv->vval.v_string = vim_strsave( sha256_bytes(p, (int)STRLEN(p), NULL, 0)); rettv->v_type = VAR_STRING; } #endif /* FEAT_CRYPT */ /* * "shellescape({string})" function */ static void f_shellescape(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_string = vim_strsave_shellescape( get_tv_string(&argvars[0]), non_zero_arg(&argvars[1]), TRUE); rettv->v_type = VAR_STRING; } /* * shiftwidth() function */ static void f_shiftwidth(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->vval.v_number = get_sw_value(curbuf); } /* * "simplify()" function */ static void f_simplify(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p; p = get_tv_string(&argvars[0]); rettv->vval.v_string = vim_strsave(p); simplify_filename(rettv->vval.v_string); /* simplify in place */ rettv->v_type = VAR_STRING; } #ifdef FEAT_FLOAT /* * "sin()" function */ static void f_sin(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = sin(f); else rettv->vval.v_float = 0.0; } /* * "sinh()" function */ static void f_sinh(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = sinh(f); else rettv->vval.v_float = 0.0; } #endif static int #ifdef __BORLANDC__ _RTLENTRYF #endif item_compare(const void *s1, const void *s2); static int #ifdef __BORLANDC__ _RTLENTRYF #endif item_compare2(const void *s1, const void *s2); /* struct used in the array that's given to qsort() */ typedef struct { listitem_T *item; int idx; } sortItem_T; static int item_compare_ic; static int item_compare_numeric; static int item_compare_numbers; #ifdef FEAT_FLOAT static int item_compare_float; #endif static char_u *item_compare_func; static dict_T *item_compare_selfdict; static int item_compare_func_err; static int item_compare_keep_zero; static void do_sort_uniq(typval_T *argvars, typval_T *rettv, int sort); #define ITEM_COMPARE_FAIL 999 /* * Compare functions for f_sort() and f_uniq() below. */ static int #ifdef __BORLANDC__ _RTLENTRYF #endif item_compare(s1, s2) const void *s1; const void *s2; { sortItem_T *si1, *si2; typval_T *tv1, *tv2; char_u *p1, *p2; char_u *tofree1 = NULL, *tofree2 = NULL; int res; char_u numbuf1[NUMBUFLEN]; char_u numbuf2[NUMBUFLEN]; si1 = (sortItem_T *)s1; si2 = (sortItem_T *)s2; tv1 = &si1->item->li_tv; tv2 = &si2->item->li_tv; if (item_compare_numbers) { long v1 = get_tv_number(tv1); long v2 = get_tv_number(tv2); return v1 == v2 ? 0 : v1 > v2 ? 1 : -1; } #ifdef FEAT_FLOAT if (item_compare_float) { float_T v1 = get_tv_float(tv1); float_T v2 = get_tv_float(tv2); return v1 == v2 ? 0 : v1 > v2 ? 1 : -1; } #endif /* tv2string() puts quotes around a string and allocates memory. Don't do * that for string variables. Use a single quote when comparing with a * non-string to do what the docs promise. */ if (tv1->v_type == VAR_STRING) { if (tv2->v_type != VAR_STRING || item_compare_numeric) p1 = (char_u *)"'"; else p1 = tv1->vval.v_string; } else p1 = tv2string(tv1, &tofree1, numbuf1, 0); if (tv2->v_type == VAR_STRING) { if (tv1->v_type != VAR_STRING || item_compare_numeric) p2 = (char_u *)"'"; else p2 = tv2->vval.v_string; } else p2 = tv2string(tv2, &tofree2, numbuf2, 0); if (p1 == NULL) p1 = (char_u *)""; if (p2 == NULL) p2 = (char_u *)""; if (!item_compare_numeric) { if (item_compare_ic) res = STRICMP(p1, p2); else res = STRCMP(p1, p2); } else { double n1, n2; n1 = strtod((char *)p1, (char **)&p1); n2 = strtod((char *)p2, (char **)&p2); res = n1 == n2 ? 0 : n1 > n2 ? 1 : -1; } /* When the result would be zero, compare the item indexes. Makes the * sort stable. */ if (res == 0 && !item_compare_keep_zero) res = si1->idx > si2->idx ? 1 : -1; vim_free(tofree1); vim_free(tofree2); return res; } static int #ifdef __BORLANDC__ _RTLENTRYF #endif item_compare2(s1, s2) const void *s1; const void *s2; { sortItem_T *si1, *si2; int res; typval_T rettv; typval_T argv[3]; int dummy; /* shortcut after failure in previous call; compare all items equal */ if (item_compare_func_err) return 0; si1 = (sortItem_T *)s1; si2 = (sortItem_T *)s2; /* Copy the values. This is needed to be able to set v_lock to VAR_FIXED * in the copy without changing the original list items. */ copy_tv(&si1->item->li_tv, &argv[0]); copy_tv(&si2->item->li_tv, &argv[1]); rettv.v_type = VAR_UNKNOWN; /* clear_tv() uses this */ res = call_func(item_compare_func, (int)STRLEN(item_compare_func), &rettv, 2, argv, 0L, 0L, &dummy, TRUE, item_compare_selfdict); clear_tv(&argv[0]); clear_tv(&argv[1]); if (res == FAIL) res = ITEM_COMPARE_FAIL; else res = get_tv_number_chk(&rettv, &item_compare_func_err); if (item_compare_func_err) res = ITEM_COMPARE_FAIL; /* return value has wrong type */ clear_tv(&rettv); /* When the result would be zero, compare the pointers themselves. Makes * the sort stable. */ if (res == 0 && !item_compare_keep_zero) res = si1->idx > si2->idx ? 1 : -1; return res; } /* * "sort({list})" function */ static void do_sort_uniq(argvars, rettv, sort) typval_T *argvars; typval_T *rettv; int sort; { list_T *l; listitem_T *li; sortItem_T *ptrs; long len; long i; if (argvars[0].v_type != VAR_LIST) EMSG2(_(e_listarg), sort ? "sort()" : "uniq()"); else { l = argvars[0].vval.v_list; if (l == NULL || tv_check_lock(l->lv_lock, (char_u *)(sort ? N_("sort() argument") : N_("uniq() argument")), TRUE)) return; rettv->vval.v_list = l; rettv->v_type = VAR_LIST; ++l->lv_refcount; len = list_len(l); if (len <= 1) return; /* short list sorts pretty quickly */ item_compare_ic = FALSE; item_compare_numeric = FALSE; item_compare_numbers = FALSE; #ifdef FEAT_FLOAT item_compare_float = FALSE; #endif item_compare_func = NULL; item_compare_selfdict = NULL; if (argvars[1].v_type != VAR_UNKNOWN) { /* optional second argument: {func} */ if (argvars[1].v_type == VAR_FUNC) item_compare_func = argvars[1].vval.v_string; else { int error = FALSE; i = get_tv_number_chk(&argvars[1], &error); if (error) return; /* type error; errmsg already given */ if (i == 1) item_compare_ic = TRUE; else item_compare_func = get_tv_string(&argvars[1]); if (item_compare_func != NULL) { if (STRCMP(item_compare_func, "n") == 0) { item_compare_func = NULL; item_compare_numeric = TRUE; } else if (STRCMP(item_compare_func, "N") == 0) { item_compare_func = NULL; item_compare_numbers = TRUE; } #ifdef FEAT_FLOAT else if (STRCMP(item_compare_func, "f") == 0) { item_compare_func = NULL; item_compare_float = TRUE; } #endif else if (STRCMP(item_compare_func, "i") == 0) { item_compare_func = NULL; item_compare_ic = TRUE; } } } if (argvars[2].v_type != VAR_UNKNOWN) { /* optional third argument: {dict} */ if (argvars[2].v_type != VAR_DICT) { EMSG(_(e_dictreq)); return; } item_compare_selfdict = argvars[2].vval.v_dict; } } /* Make an array with each entry pointing to an item in the List. */ ptrs = (sortItem_T *)alloc((int)(len * sizeof(sortItem_T))); if (ptrs == NULL) return; i = 0; if (sort) { /* sort(): ptrs will be the list to sort */ for (li = l->lv_first; li != NULL; li = li->li_next) { ptrs[i].item = li; ptrs[i].idx = i; ++i; } item_compare_func_err = FALSE; item_compare_keep_zero = FALSE; /* test the compare function */ if (item_compare_func != NULL && item_compare2((void *)&ptrs[0], (void *)&ptrs[1]) == ITEM_COMPARE_FAIL) EMSG(_("E702: Sort compare function failed")); else { /* Sort the array with item pointers. */ qsort((void *)ptrs, (size_t)len, sizeof(sortItem_T), item_compare_func == NULL ? item_compare : item_compare2); if (!item_compare_func_err) { /* Clear the List and append the items in sorted order. */ l->lv_first = l->lv_last = l->lv_idx_item = NULL; l->lv_len = 0; for (i = 0; i < len; ++i) list_append(l, ptrs[i].item); } } } else { int (*item_compare_func_ptr)(const void *, const void *); /* f_uniq(): ptrs will be a stack of items to remove */ item_compare_func_err = FALSE; item_compare_keep_zero = TRUE; item_compare_func_ptr = item_compare_func ? item_compare2 : item_compare; for (li = l->lv_first; li != NULL && li->li_next != NULL; li = li->li_next) { if (item_compare_func_ptr((void *)&li, (void *)&li->li_next) == 0) ptrs[i++].item = li; if (item_compare_func_err) { EMSG(_("E882: Uniq compare function failed")); break; } } if (!item_compare_func_err) { while (--i >= 0) { li = ptrs[i].item->li_next; ptrs[i].item->li_next = li->li_next; if (li->li_next != NULL) li->li_next->li_prev = ptrs[i].item; else l->lv_last = ptrs[i].item; list_fix_watch(l, li); listitem_free(li); l->lv_len--; } } } vim_free(ptrs); } } /* * "sort({list})" function */ static void f_sort(argvars, rettv) typval_T *argvars; typval_T *rettv; { do_sort_uniq(argvars, rettv, TRUE); } /* * "uniq({list})" function */ static void f_uniq(argvars, rettv) typval_T *argvars; typval_T *rettv; { do_sort_uniq(argvars, rettv, FALSE); } /* * "soundfold({word})" function */ static void f_soundfold(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *s; rettv->v_type = VAR_STRING; s = get_tv_string(&argvars[0]); #ifdef FEAT_SPELL rettv->vval.v_string = eval_soundfold(s); #else rettv->vval.v_string = vim_strsave(s); #endif } /* * "spellbadword()" function */ static void f_spellbadword(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { char_u *word = (char_u *)""; hlf_T attr = HLF_COUNT; int len = 0; if (rettv_list_alloc(rettv) == FAIL) return; #ifdef FEAT_SPELL if (argvars[0].v_type == VAR_UNKNOWN) { /* Find the start and length of the badly spelled word. */ len = spell_move_to(curwin, FORWARD, TRUE, TRUE, &attr); if (len != 0) word = ml_get_cursor(); } else if (curwin->w_p_spell && *curbuf->b_s.b_p_spl != NUL) { char_u *str = get_tv_string_chk(&argvars[0]); int capcol = -1; if (str != NULL) { /* Check the argument for spelling. */ while (*str != NUL) { len = spell_check(curwin, str, &attr, &capcol, FALSE); if (attr != HLF_COUNT) { word = str; break; } str += len; } } } #endif list_append_string(rettv->vval.v_list, word, len); list_append_string(rettv->vval.v_list, (char_u *)( attr == HLF_SPB ? "bad" : attr == HLF_SPR ? "rare" : attr == HLF_SPL ? "local" : attr == HLF_SPC ? "caps" : ""), -1); } /* * "spellsuggest()" function */ static void f_spellsuggest(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifdef FEAT_SPELL char_u *str; int typeerr = FALSE; int maxcount; garray_T ga; int i; listitem_T *li; int need_capital = FALSE; #endif if (rettv_list_alloc(rettv) == FAIL) return; #ifdef FEAT_SPELL if (curwin->w_p_spell && *curwin->w_s->b_p_spl != NUL) { str = get_tv_string(&argvars[0]); if (argvars[1].v_type != VAR_UNKNOWN) { maxcount = get_tv_number_chk(&argvars[1], &typeerr); if (maxcount <= 0) return; if (argvars[2].v_type != VAR_UNKNOWN) { need_capital = get_tv_number_chk(&argvars[2], &typeerr); if (typeerr) return; } } else maxcount = 25; spell_suggest_list(&ga, str, maxcount, need_capital, FALSE); for (i = 0; i < ga.ga_len; ++i) { str = ((char_u **)ga.ga_data)[i]; li = listitem_alloc(); if (li == NULL) vim_free(str); else { li->li_tv.v_type = VAR_STRING; li->li_tv.v_lock = 0; li->li_tv.vval.v_string = str; list_append(rettv->vval.v_list, li); } } ga_clear(&ga); } #endif } static void f_split(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *str; char_u *end; char_u *pat = NULL; regmatch_T regmatch; char_u patbuf[NUMBUFLEN]; char_u *save_cpo; int match; colnr_T col = 0; int keepempty = FALSE; int typeerr = FALSE; /* Make 'cpoptions' empty, the 'l' flag should not be used here. */ save_cpo = p_cpo; p_cpo = (char_u *)""; str = get_tv_string(&argvars[0]); if (argvars[1].v_type != VAR_UNKNOWN) { pat = get_tv_string_buf_chk(&argvars[1], patbuf); if (pat == NULL) typeerr = TRUE; if (argvars[2].v_type != VAR_UNKNOWN) keepempty = get_tv_number_chk(&argvars[2], &typeerr); } if (pat == NULL || *pat == NUL) pat = (char_u *)"[\\x01- ]\\+"; if (rettv_list_alloc(rettv) == FAIL) return; if (typeerr) return; regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING); if (regmatch.regprog != NULL) { regmatch.rm_ic = FALSE; while (*str != NUL || keepempty) { if (*str == NUL) match = FALSE; /* empty item at the end */ else match = vim_regexec_nl(®match, str, col); if (match) end = regmatch.startp[0]; else end = str + STRLEN(str); if (keepempty || end > str || (rettv->vval.v_list->lv_len > 0 && *str != NUL && match && end < regmatch.endp[0])) { if (list_append_string(rettv->vval.v_list, str, (int)(end - str)) == FAIL) break; } if (!match) break; /* Advance to just after the match. */ if (regmatch.endp[0] > str) col = 0; else { /* Don't get stuck at the same match. */ #ifdef FEAT_MBYTE col = (*mb_ptr2len)(regmatch.endp[0]); #else col = 1; #endif } str = regmatch.endp[0]; } vim_regfree(regmatch.regprog); } p_cpo = save_cpo; } #ifdef FEAT_FLOAT /* * "sqrt()" function */ static void f_sqrt(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = sqrt(f); else rettv->vval.v_float = 0.0; } /* * "str2float()" function */ static void f_str2float(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p = skipwhite(get_tv_string(&argvars[0])); if (*p == '+') p = skipwhite(p + 1); (void)string2float(p, &rettv->vval.v_float); rettv->v_type = VAR_FLOAT; } #endif /* * "str2nr()" function */ static void f_str2nr(argvars, rettv) typval_T *argvars; typval_T *rettv; { int base = 10; char_u *p; long n; int what; if (argvars[1].v_type != VAR_UNKNOWN) { base = get_tv_number(&argvars[1]); if (base != 2 && base != 8 && base != 10 && base != 16) { EMSG(_(e_invarg)); return; } } p = skipwhite(get_tv_string(&argvars[0])); if (*p == '+') p = skipwhite(p + 1); switch (base) { case 2: what = STR2NR_BIN + STR2NR_FORCE; break; case 8: what = STR2NR_OCT + STR2NR_FORCE; break; case 16: what = STR2NR_HEX + STR2NR_FORCE; break; default: what = 0; } vim_str2nr(p, NULL, NULL, what, &n, NULL, 0); rettv->vval.v_number = n; } #ifdef HAVE_STRFTIME /* * "strftime({format}[, {time}])" function */ static void f_strftime(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u result_buf[256]; struct tm *curtime; time_t seconds; char_u *p; rettv->v_type = VAR_STRING; p = get_tv_string(&argvars[0]); if (argvars[1].v_type == VAR_UNKNOWN) seconds = time(NULL); else seconds = (time_t)get_tv_number(&argvars[1]); curtime = localtime(&seconds); /* MSVC returns NULL for an invalid value of seconds. */ if (curtime == NULL) rettv->vval.v_string = vim_strsave((char_u *)_("(Invalid)")); else { # ifdef FEAT_MBYTE vimconv_T conv; char_u *enc; conv.vc_type = CONV_NONE; enc = enc_locale(); convert_setup(&conv, p_enc, enc); if (conv.vc_type != CONV_NONE) p = string_convert(&conv, p, NULL); # endif if (p != NULL) (void)strftime((char *)result_buf, sizeof(result_buf), (char *)p, curtime); else result_buf[0] = NUL; # ifdef FEAT_MBYTE if (conv.vc_type != CONV_NONE) vim_free(p); convert_setup(&conv, enc, p_enc); if (conv.vc_type != CONV_NONE) rettv->vval.v_string = string_convert(&conv, result_buf, NULL); else # endif rettv->vval.v_string = vim_strsave(result_buf); # ifdef FEAT_MBYTE /* Release conversion descriptors */ convert_setup(&conv, NULL, NULL); vim_free(enc); # endif } } #endif /* * "stridx()" function */ static void f_stridx(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u buf[NUMBUFLEN]; char_u *needle; char_u *haystack; char_u *save_haystack; char_u *pos; int start_idx; needle = get_tv_string_chk(&argvars[1]); save_haystack = haystack = get_tv_string_buf_chk(&argvars[0], buf); rettv->vval.v_number = -1; if (needle == NULL || haystack == NULL) return; /* type error; errmsg already given */ if (argvars[2].v_type != VAR_UNKNOWN) { int error = FALSE; start_idx = get_tv_number_chk(&argvars[2], &error); if (error || start_idx >= (int)STRLEN(haystack)) return; if (start_idx >= 0) haystack += start_idx; } pos = (char_u *)strstr((char *)haystack, (char *)needle); if (pos != NULL) rettv->vval.v_number = (varnumber_T)(pos - save_haystack); } /* * "string()" function */ static void f_string(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *tofree; char_u numbuf[NUMBUFLEN]; rettv->v_type = VAR_STRING; rettv->vval.v_string = tv2string(&argvars[0], &tofree, numbuf, 0); /* Make a copy if we have a value but it's not in allocated memory. */ if (rettv->vval.v_string != NULL && tofree == NULL) rettv->vval.v_string = vim_strsave(rettv->vval.v_string); } /* * "strlen()" function */ static void f_strlen(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = (varnumber_T)(STRLEN( get_tv_string(&argvars[0]))); } /* * "strchars()" function */ static void f_strchars(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *s = get_tv_string(&argvars[0]); int skipcc = 0; #ifdef FEAT_MBYTE varnumber_T len = 0; int (*func_mb_ptr2char_adv)(char_u **pp); #endif if (argvars[1].v_type != VAR_UNKNOWN) skipcc = get_tv_number_chk(&argvars[1], NULL); if (skipcc < 0 || skipcc > 1) EMSG(_(e_invarg)); else { #ifdef FEAT_MBYTE func_mb_ptr2char_adv = skipcc ? mb_ptr2char_adv : mb_cptr2char_adv; while (*s != NUL) { func_mb_ptr2char_adv(&s); ++len; } rettv->vval.v_number = len; #else rettv->vval.v_number = (varnumber_T)(STRLEN(s)); #endif } } /* * "strdisplaywidth()" function */ static void f_strdisplaywidth(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *s = get_tv_string(&argvars[0]); int col = 0; if (argvars[1].v_type != VAR_UNKNOWN) col = get_tv_number(&argvars[1]); rettv->vval.v_number = (varnumber_T)(linetabsize_col(col, s) - col); } /* * "strwidth()" function */ static void f_strwidth(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *s = get_tv_string(&argvars[0]); rettv->vval.v_number = (varnumber_T)( #ifdef FEAT_MBYTE mb_string2cells(s, -1) #else STRLEN(s) #endif ); } /* * "strpart()" function */ static void f_strpart(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p; int n; int len; int slen; int error = FALSE; p = get_tv_string(&argvars[0]); slen = (int)STRLEN(p); n = get_tv_number_chk(&argvars[1], &error); if (error) len = 0; else if (argvars[2].v_type != VAR_UNKNOWN) len = get_tv_number(&argvars[2]); else len = slen - n; /* default len: all bytes that are available. */ /* * Only return the overlap between the specified part and the actual * string. */ if (n < 0) { len += n; n = 0; } else if (n > slen) n = slen; if (len < 0) len = 0; else if (n + len > slen) len = slen - n; rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_strnsave(p + n, len); } /* * "strridx()" function */ static void f_strridx(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u buf[NUMBUFLEN]; char_u *needle; char_u *haystack; char_u *rest; char_u *lastmatch = NULL; int haystack_len, end_idx; needle = get_tv_string_chk(&argvars[1]); haystack = get_tv_string_buf_chk(&argvars[0], buf); rettv->vval.v_number = -1; if (needle == NULL || haystack == NULL) return; /* type error; errmsg already given */ haystack_len = (int)STRLEN(haystack); if (argvars[2].v_type != VAR_UNKNOWN) { /* Third argument: upper limit for index */ end_idx = get_tv_number_chk(&argvars[2], NULL); if (end_idx < 0) return; /* can never find a match */ } else end_idx = haystack_len; if (*needle == NUL) { /* Empty string matches past the end. */ lastmatch = haystack + end_idx; } else { for (rest = haystack; *rest != '\0'; ++rest) { rest = (char_u *)strstr((char *)rest, (char *)needle); if (rest == NULL || rest > haystack + end_idx) break; lastmatch = rest; } } if (lastmatch == NULL) rettv->vval.v_number = -1; else rettv->vval.v_number = (varnumber_T)(lastmatch - haystack); } /* * "strtrans()" function */ static void f_strtrans(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = transstr(get_tv_string(&argvars[0])); } /* * "submatch()" function */ static void f_submatch(argvars, rettv) typval_T *argvars; typval_T *rettv; { int error = FALSE; int no; int retList = 0; no = (int)get_tv_number_chk(&argvars[0], &error); if (error) return; error = FALSE; if (argvars[1].v_type != VAR_UNKNOWN) retList = get_tv_number_chk(&argvars[1], &error); if (error) return; if (retList == 0) { rettv->v_type = VAR_STRING; rettv->vval.v_string = reg_submatch(no); } else { rettv->v_type = VAR_LIST; rettv->vval.v_list = reg_submatch_list(no); } } /* * "substitute()" function */ static void f_substitute(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u patbuf[NUMBUFLEN]; char_u subbuf[NUMBUFLEN]; char_u flagsbuf[NUMBUFLEN]; char_u *str = get_tv_string_chk(&argvars[0]); char_u *pat = get_tv_string_buf_chk(&argvars[1], patbuf); char_u *sub = get_tv_string_buf_chk(&argvars[2], subbuf); char_u *flg = get_tv_string_buf_chk(&argvars[3], flagsbuf); rettv->v_type = VAR_STRING; if (str == NULL || pat == NULL || sub == NULL || flg == NULL) rettv->vval.v_string = NULL; else rettv->vval.v_string = do_string_sub(str, pat, sub, flg); } /* * "synID(lnum, col, trans)" function */ static void f_synID(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { int id = 0; #ifdef FEAT_SYN_HL long lnum; long col; int trans; int transerr = FALSE; lnum = get_tv_lnum(argvars); /* -1 on type error */ col = get_tv_number(&argvars[1]) - 1; /* -1 on type error */ trans = get_tv_number_chk(&argvars[2], &transerr); if (!transerr && lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count && col >= 0 && col < (long)STRLEN(ml_get(lnum))) id = syn_get_id(curwin, lnum, (colnr_T)col, trans, NULL, FALSE); #endif rettv->vval.v_number = id; } /* * "synIDattr(id, what [, mode])" function */ static void f_synIDattr(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { char_u *p = NULL; #ifdef FEAT_SYN_HL int id; char_u *what; char_u *mode; char_u modebuf[NUMBUFLEN]; int modec; id = get_tv_number(&argvars[0]); what = get_tv_string(&argvars[1]); if (argvars[2].v_type != VAR_UNKNOWN) { mode = get_tv_string_buf(&argvars[2], modebuf); modec = TOLOWER_ASC(mode[0]); if (modec != 't' && modec != 'c' && modec != 'g') modec = 0; /* replace invalid with current */ } else { #ifdef FEAT_GUI if (gui.in_use) modec = 'g'; else #endif if (t_colors > 1) modec = 'c'; else modec = 't'; } switch (TOLOWER_ASC(what[0])) { case 'b': if (TOLOWER_ASC(what[1]) == 'g') /* bg[#] */ p = highlight_color(id, what, modec); else /* bold */ p = highlight_has_attr(id, HL_BOLD, modec); break; case 'f': /* fg[#] or font */ p = highlight_color(id, what, modec); break; case 'i': if (TOLOWER_ASC(what[1]) == 'n') /* inverse */ p = highlight_has_attr(id, HL_INVERSE, modec); else /* italic */ p = highlight_has_attr(id, HL_ITALIC, modec); break; case 'n': /* name */ p = get_highlight_name(NULL, id - 1); break; case 'r': /* reverse */ p = highlight_has_attr(id, HL_INVERSE, modec); break; case 's': if (TOLOWER_ASC(what[1]) == 'p') /* sp[#] */ p = highlight_color(id, what, modec); else /* standout */ p = highlight_has_attr(id, HL_STANDOUT, modec); break; case 'u': if (STRLEN(what) <= 5 || TOLOWER_ASC(what[5]) != 'c') /* underline */ p = highlight_has_attr(id, HL_UNDERLINE, modec); else /* undercurl */ p = highlight_has_attr(id, HL_UNDERCURL, modec); break; } if (p != NULL) p = vim_strsave(p); #endif rettv->v_type = VAR_STRING; rettv->vval.v_string = p; } /* * "synIDtrans(id)" function */ static void f_synIDtrans(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { int id; #ifdef FEAT_SYN_HL id = get_tv_number(&argvars[0]); if (id > 0) id = syn_get_final_id(id); else #endif id = 0; rettv->vval.v_number = id; } /* * "synconcealed(lnum, col)" function */ static void f_synconcealed(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #if defined(FEAT_SYN_HL) && defined(FEAT_CONCEAL) long lnum; long col; int syntax_flags = 0; int cchar; int matchid = 0; char_u str[NUMBUFLEN]; #endif rettv->v_type = VAR_LIST; rettv->vval.v_list = NULL; #if defined(FEAT_SYN_HL) && defined(FEAT_CONCEAL) lnum = get_tv_lnum(argvars); /* -1 on type error */ col = get_tv_number(&argvars[1]) - 1; /* -1 on type error */ vim_memset(str, NUL, sizeof(str)); if (rettv_list_alloc(rettv) != FAIL) { if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count && col >= 0 && col <= (long)STRLEN(ml_get(lnum)) && curwin->w_p_cole > 0) { (void)syn_get_id(curwin, lnum, col, FALSE, NULL, FALSE); syntax_flags = get_syntax_info(&matchid); /* get the conceal character */ if ((syntax_flags & HL_CONCEAL) && curwin->w_p_cole < 3) { cchar = syn_get_sub_char(); if (cchar == NUL && curwin->w_p_cole == 1 && lcs_conceal != NUL) cchar = lcs_conceal; if (cchar != NUL) { # ifdef FEAT_MBYTE if (has_mbyte) (*mb_char2bytes)(cchar, str); else # endif str[0] = cchar; } } } list_append_number(rettv->vval.v_list, (syntax_flags & HL_CONCEAL) != 0); /* -1 to auto-determine strlen */ list_append_string(rettv->vval.v_list, str, -1); list_append_number(rettv->vval.v_list, matchid); } #endif } /* * "synstack(lnum, col)" function */ static void f_synstack(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifdef FEAT_SYN_HL long lnum; long col; int i; int id; #endif rettv->v_type = VAR_LIST; rettv->vval.v_list = NULL; #ifdef FEAT_SYN_HL lnum = get_tv_lnum(argvars); /* -1 on type error */ col = get_tv_number(&argvars[1]) - 1; /* -1 on type error */ if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count && col >= 0 && col <= (long)STRLEN(ml_get(lnum)) && rettv_list_alloc(rettv) != FAIL) { (void)syn_get_id(curwin, lnum, (colnr_T)col, FALSE, NULL, TRUE); for (i = 0; ; ++i) { id = syn_get_stack_item(i); if (id < 0) break; if (list_append_number(rettv->vval.v_list, id) == FAIL) break; } } #endif } static void get_cmd_output_as_rettv(argvars, rettv, retlist) typval_T *argvars; typval_T *rettv; int retlist; { char_u *res = NULL; char_u *p; char_u *infile = NULL; char_u buf[NUMBUFLEN]; int err = FALSE; FILE *fd; list_T *list = NULL; int flags = SHELL_SILENT; rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; if (check_restricted() || check_secure()) goto errret; if (argvars[1].v_type != VAR_UNKNOWN) { /* * Write the string to a temp file, to be used for input of the shell * command. */ if ((infile = vim_tempname('i', TRUE)) == NULL) { EMSG(_(e_notmp)); goto errret; } fd = mch_fopen((char *)infile, WRITEBIN); if (fd == NULL) { EMSG2(_(e_notopen), infile); goto errret; } if (argvars[1].v_type == VAR_LIST) { if (write_list(fd, argvars[1].vval.v_list, TRUE) == FAIL) err = TRUE; } else { size_t len; p = get_tv_string_buf_chk(&argvars[1], buf); if (p == NULL) { fclose(fd); goto errret; /* type error; errmsg already given */ } len = STRLEN(p); if (len > 0 && fwrite(p, len, 1, fd) != 1) err = TRUE; } if (fclose(fd) != 0) err = TRUE; if (err) { EMSG(_("E677: Error writing temp file")); goto errret; } } /* Omit SHELL_COOKED when invoked with ":silent". Avoids that the shell * echoes typeahead, that messes up the display. */ if (!msg_silent) flags += SHELL_COOKED; if (retlist) { int len; listitem_T *li; char_u *s = NULL; char_u *start; char_u *end; int i; res = get_cmd_output(get_tv_string(&argvars[0]), infile, flags, &len); if (res == NULL) goto errret; list = list_alloc(); if (list == NULL) goto errret; for (i = 0; i < len; ++i) { start = res + i; while (i < len && res[i] != NL) ++i; end = res + i; s = alloc((unsigned)(end - start + 1)); if (s == NULL) goto errret; for (p = s; start < end; ++p, ++start) *p = *start == NUL ? NL : *start; *p = NUL; li = listitem_alloc(); if (li == NULL) { vim_free(s); goto errret; } li->li_tv.v_type = VAR_STRING; li->li_tv.v_lock = 0; li->li_tv.vval.v_string = s; list_append(list, li); } ++list->lv_refcount; rettv->v_type = VAR_LIST; rettv->vval.v_list = list; list = NULL; } else { res = get_cmd_output(get_tv_string(&argvars[0]), infile, flags, NULL); #ifdef USE_CR /* translate <CR> into <NL> */ if (res != NULL) { char_u *s; for (s = res; *s; ++s) { if (*s == CAR) *s = NL; } } #else # ifdef USE_CRNL /* translate <CR><NL> into <NL> */ if (res != NULL) { char_u *s, *d; d = res; for (s = res; *s; ++s) { if (s[0] == CAR && s[1] == NL) ++s; *d++ = *s; } *d = NUL; } # endif #endif rettv->vval.v_string = res; res = NULL; } errret: if (infile != NULL) { mch_remove(infile); vim_free(infile); } if (res != NULL) vim_free(res); if (list != NULL) list_free(list, TRUE); } /* * "system()" function */ static void f_system(argvars, rettv) typval_T *argvars; typval_T *rettv; { get_cmd_output_as_rettv(argvars, rettv, FALSE); } /* * "systemlist()" function */ static void f_systemlist(argvars, rettv) typval_T *argvars; typval_T *rettv; { get_cmd_output_as_rettv(argvars, rettv, TRUE); } /* * "tabpagebuflist()" function */ static void f_tabpagebuflist(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_WINDOWS tabpage_T *tp; win_T *wp = NULL; if (argvars[0].v_type == VAR_UNKNOWN) wp = firstwin; else { tp = find_tabpage((int)get_tv_number(&argvars[0])); if (tp != NULL) wp = (tp == curtab) ? firstwin : tp->tp_firstwin; } if (wp != NULL && rettv_list_alloc(rettv) != FAIL) { for (; wp != NULL; wp = wp->w_next) if (list_append_number(rettv->vval.v_list, wp->w_buffer->b_fnum) == FAIL) break; } #endif } /* * "tabpagenr()" function */ static void f_tabpagenr(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { int nr = 1; #ifdef FEAT_WINDOWS char_u *arg; if (argvars[0].v_type != VAR_UNKNOWN) { arg = get_tv_string_chk(&argvars[0]); nr = 0; if (arg != NULL) { if (STRCMP(arg, "$") == 0) nr = tabpage_index(NULL) - 1; else EMSG2(_(e_invexpr2), arg); } } else nr = tabpage_index(curtab); #endif rettv->vval.v_number = nr; } #ifdef FEAT_WINDOWS static int get_winnr(tabpage_T *tp, typval_T *argvar); /* * Common code for tabpagewinnr() and winnr(). */ static int get_winnr(tp, argvar) tabpage_T *tp; typval_T *argvar; { win_T *twin; int nr = 1; win_T *wp; char_u *arg; twin = (tp == curtab) ? curwin : tp->tp_curwin; if (argvar->v_type != VAR_UNKNOWN) { arg = get_tv_string_chk(argvar); if (arg == NULL) nr = 0; /* type error; errmsg already given */ else if (STRCMP(arg, "$") == 0) twin = (tp == curtab) ? lastwin : tp->tp_lastwin; else if (STRCMP(arg, "#") == 0) { twin = (tp == curtab) ? prevwin : tp->tp_prevwin; if (twin == NULL) nr = 0; } else { EMSG2(_(e_invexpr2), arg); nr = 0; } } if (nr > 0) for (wp = (tp == curtab) ? firstwin : tp->tp_firstwin; wp != twin; wp = wp->w_next) { if (wp == NULL) { /* didn't find it in this tabpage */ nr = 0; break; } ++nr; } return nr; } #endif /* * "tabpagewinnr()" function */ static void f_tabpagewinnr(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { int nr = 1; #ifdef FEAT_WINDOWS tabpage_T *tp; tp = find_tabpage((int)get_tv_number(&argvars[0])); if (tp == NULL) nr = 0; else nr = get_winnr(tp, &argvars[1]); #endif rettv->vval.v_number = nr; } /* * "tagfiles()" function */ static void f_tagfiles(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { char_u *fname; tagname_T tn; int first; if (rettv_list_alloc(rettv) == FAIL) return; fname = alloc(MAXPATHL); if (fname == NULL) return; for (first = TRUE; ; first = FALSE) if (get_tagfname(&tn, first, fname) == FAIL || list_append_string(rettv->vval.v_list, fname, -1) == FAIL) break; tagname_free(&tn); vim_free(fname); } /* * "taglist()" function */ static void f_taglist(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *tag_pattern; tag_pattern = get_tv_string(&argvars[0]); rettv->vval.v_number = FALSE; if (*tag_pattern == NUL) return; if (rettv_list_alloc(rettv) == OK) (void)get_tags(rettv->vval.v_list, tag_pattern); } /* * "tempname()" function */ static void f_tempname(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { static int x = 'A'; rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_tempname(x, FALSE); /* Advance 'x' to use A-Z and 0-9, so that there are at least 34 different * names. Skip 'I' and 'O', they are used for shell redirection. */ do { if (x == 'Z') x = '0'; else if (x == '9') x = 'A'; else { #ifdef EBCDIC if (x == 'I') x = 'J'; else if (x == 'R') x = 'S'; else #endif ++x; } } while (x == 'I' || x == 'O'); } /* * "test(list)" function: Just checking the walls... */ static void f_test(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { /* Used for unit testing. Change the code below to your liking. */ #if 0 listitem_T *li; list_T *l; char_u *bad, *good; if (argvars[0].v_type != VAR_LIST) return; l = argvars[0].vval.v_list; if (l == NULL) return; li = l->lv_first; if (li == NULL) return; bad = get_tv_string(&li->li_tv); li = li->li_next; if (li == NULL) return; good = get_tv_string(&li->li_tv); rettv->vval.v_number = test_edit_score(bad, good); #endif } #ifdef FEAT_FLOAT /* * "tan()" function */ static void f_tan(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = tan(f); else rettv->vval.v_float = 0.0; } /* * "tanh()" function */ static void f_tanh(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) rettv->vval.v_float = tanh(f); else rettv->vval.v_float = 0.0; } #endif /* * "tolower(string)" function */ static void f_tolower(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p; p = vim_strsave(get_tv_string(&argvars[0])); rettv->v_type = VAR_STRING; rettv->vval.v_string = p; if (p != NULL) while (*p != NUL) { #ifdef FEAT_MBYTE int l; if (enc_utf8) { int c, lc; c = utf_ptr2char(p); lc = utf_tolower(c); l = utf_ptr2len(p); /* TODO: reallocate string when byte count changes. */ if (utf_char2len(lc) == l) utf_char2bytes(lc, p); p += l; } else if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) p += l; /* skip multi-byte character */ else #endif { *p = TOLOWER_LOC(*p); /* note that tolower() can be a macro */ ++p; } } } /* * "toupper(string)" function */ static void f_toupper(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = strup_save(get_tv_string(&argvars[0])); } /* * "tr(string, fromstr, tostr)" function */ static void f_tr(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *in_str; char_u *fromstr; char_u *tostr; char_u *p; #ifdef FEAT_MBYTE int inlen; int fromlen; int tolen; int idx; char_u *cpstr; int cplen; int first = TRUE; #endif char_u buf[NUMBUFLEN]; char_u buf2[NUMBUFLEN]; garray_T ga; in_str = get_tv_string(&argvars[0]); fromstr = get_tv_string_buf_chk(&argvars[1], buf); tostr = get_tv_string_buf_chk(&argvars[2], buf2); /* Default return value: empty string. */ rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; if (fromstr == NULL || tostr == NULL) return; /* type error; errmsg already given */ ga_init2(&ga, (int)sizeof(char), 80); #ifdef FEAT_MBYTE if (!has_mbyte) #endif /* not multi-byte: fromstr and tostr must be the same length */ if (STRLEN(fromstr) != STRLEN(tostr)) { #ifdef FEAT_MBYTE error: #endif EMSG2(_(e_invarg2), fromstr); ga_clear(&ga); return; } /* fromstr and tostr have to contain the same number of chars */ while (*in_str != NUL) { #ifdef FEAT_MBYTE if (has_mbyte) { inlen = (*mb_ptr2len)(in_str); cpstr = in_str; cplen = inlen; idx = 0; for (p = fromstr; *p != NUL; p += fromlen) { fromlen = (*mb_ptr2len)(p); if (fromlen == inlen && STRNCMP(in_str, p, inlen) == 0) { for (p = tostr; *p != NUL; p += tolen) { tolen = (*mb_ptr2len)(p); if (idx-- == 0) { cplen = tolen; cpstr = p; break; } } if (*p == NUL) /* tostr is shorter than fromstr */ goto error; break; } ++idx; } if (first && cpstr == in_str) { /* Check that fromstr and tostr have the same number of * (multi-byte) characters. Done only once when a character * of in_str doesn't appear in fromstr. */ first = FALSE; for (p = tostr; *p != NUL; p += tolen) { tolen = (*mb_ptr2len)(p); --idx; } if (idx != 0) goto error; } (void)ga_grow(&ga, cplen); mch_memmove((char *)ga.ga_data + ga.ga_len, cpstr, (size_t)cplen); ga.ga_len += cplen; in_str += inlen; } else #endif { /* When not using multi-byte chars we can do it faster. */ p = vim_strchr(fromstr, *in_str); if (p != NULL) ga_append(&ga, tostr[p - fromstr]); else ga_append(&ga, *in_str); ++in_str; } } /* add a terminating NUL */ (void)ga_grow(&ga, 1); ga_append(&ga, NUL); rettv->vval.v_string = ga.ga_data; } #ifdef FEAT_FLOAT /* * "trunc({float})" function */ static void f_trunc(argvars, rettv) typval_T *argvars; typval_T *rettv; { float_T f; rettv->v_type = VAR_FLOAT; if (get_float_arg(argvars, &f) == OK) /* trunc() is not in C90, use floor() or ceil() instead. */ rettv->vval.v_float = f > 0 ? floor(f) : ceil(f); else rettv->vval.v_float = 0.0; } #endif /* * "type(expr)" function */ static void f_type(argvars, rettv) typval_T *argvars; typval_T *rettv; { int n; switch (argvars[0].v_type) { case VAR_NUMBER: n = 0; break; case VAR_STRING: n = 1; break; case VAR_FUNC: n = 2; break; case VAR_LIST: n = 3; break; case VAR_DICT: n = 4; break; #ifdef FEAT_FLOAT case VAR_FLOAT: n = 5; break; #endif case VAR_SPECIAL: if (argvars[0].vval.v_number == VVAL_FALSE || argvars[0].vval.v_number == VVAL_TRUE) n = 6; else n = 7; break; default: EMSG2(_(e_intern2), "f_type()"); n = 0; break; } rettv->vval.v_number = n; } /* * "undofile(name)" function */ static void f_undofile(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { rettv->v_type = VAR_STRING; #ifdef FEAT_PERSISTENT_UNDO { char_u *fname = get_tv_string(&argvars[0]); if (*fname == NUL) { /* If there is no file name there will be no undo file. */ rettv->vval.v_string = NULL; } else { char_u *ffname = FullName_save(fname, FALSE); if (ffname != NULL) rettv->vval.v_string = u_get_undo_file_name(ffname, FALSE); vim_free(ffname); } } #else rettv->vval.v_string = NULL; #endif } /* * "undotree()" function */ static void f_undotree(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { if (rettv_dict_alloc(rettv) == OK) { dict_T *dict = rettv->vval.v_dict; list_T *list; dict_add_nr_str(dict, "synced", (long)curbuf->b_u_synced, NULL); dict_add_nr_str(dict, "seq_last", curbuf->b_u_seq_last, NULL); dict_add_nr_str(dict, "save_last", (long)curbuf->b_u_save_nr_last, NULL); dict_add_nr_str(dict, "seq_cur", curbuf->b_u_seq_cur, NULL); dict_add_nr_str(dict, "time_cur", (long)curbuf->b_u_time_cur, NULL); dict_add_nr_str(dict, "save_cur", (long)curbuf->b_u_save_nr_cur, NULL); list = list_alloc(); if (list != NULL) { u_eval_tree(curbuf->b_u_oldhead, list); dict_add_list(dict, "entries", list); } } } /* * "values(dict)" function */ static void f_values(argvars, rettv) typval_T *argvars; typval_T *rettv; { dict_list(argvars, rettv, 1); } /* * "virtcol(string)" function */ static void f_virtcol(argvars, rettv) typval_T *argvars; typval_T *rettv; { colnr_T vcol = 0; pos_T *fp; int fnum = curbuf->b_fnum; fp = var2fpos(&argvars[0], FALSE, &fnum); if (fp != NULL && fp->lnum <= curbuf->b_ml.ml_line_count && fnum == curbuf->b_fnum) { getvvcol(curwin, fp, NULL, NULL, &vcol); ++vcol; } rettv->vval.v_number = vcol; } /* * "visualmode()" function */ static void f_visualmode(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { char_u str[2]; rettv->v_type = VAR_STRING; str[0] = curbuf->b_visual_mode_eval; str[1] = NUL; rettv->vval.v_string = vim_strsave(str); /* A non-zero number or non-empty string argument: reset mode. */ if (non_zero_arg(&argvars[0])) curbuf->b_visual_mode_eval = NUL; } /* * "wildmenumode()" function */ static void f_wildmenumode(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv UNUSED; { #ifdef FEAT_WILDMENU if (wild_menu_showing) rettv->vval.v_number = 1; #endif } /* * "winbufnr(nr)" function */ static void f_winbufnr(argvars, rettv) typval_T *argvars; typval_T *rettv; { win_T *wp; wp = find_win_by_nr(&argvars[0], NULL); if (wp == NULL) rettv->vval.v_number = -1; else rettv->vval.v_number = wp->w_buffer->b_fnum; } /* * "wincol()" function */ static void f_wincol(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { validate_cursor(); rettv->vval.v_number = curwin->w_wcol + 1; } /* * "winheight(nr)" function */ static void f_winheight(argvars, rettv) typval_T *argvars; typval_T *rettv; { win_T *wp; wp = find_win_by_nr(&argvars[0], NULL); if (wp == NULL) rettv->vval.v_number = -1; else rettv->vval.v_number = wp->w_height; } /* * "winline()" function */ static void f_winline(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { validate_cursor(); rettv->vval.v_number = curwin->w_wrow + 1; } /* * "winnr()" function */ static void f_winnr(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { int nr = 1; #ifdef FEAT_WINDOWS nr = get_winnr(curtab, &argvars[0]); #endif rettv->vval.v_number = nr; } /* * "winrestcmd()" function */ static void f_winrestcmd(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { #ifdef FEAT_WINDOWS win_T *wp; int winnr = 1; garray_T ga; char_u buf[50]; ga_init2(&ga, (int)sizeof(char), 70); for (wp = firstwin; wp != NULL; wp = wp->w_next) { sprintf((char *)buf, "%dresize %d|", winnr, wp->w_height); ga_concat(&ga, buf); # ifdef FEAT_VERTSPLIT sprintf((char *)buf, "vert %dresize %d|", winnr, wp->w_width); ga_concat(&ga, buf); # endif ++winnr; } ga_append(&ga, NUL); rettv->vval.v_string = ga.ga_data; #else rettv->vval.v_string = NULL; #endif rettv->v_type = VAR_STRING; } /* * "winrestview()" function */ static void f_winrestview(argvars, rettv) typval_T *argvars; typval_T *rettv UNUSED; { dict_T *dict; if (argvars[0].v_type != VAR_DICT || (dict = argvars[0].vval.v_dict) == NULL) EMSG(_(e_invarg)); else { if (dict_find(dict, (char_u *)"lnum", -1) != NULL) curwin->w_cursor.lnum = get_dict_number(dict, (char_u *)"lnum"); if (dict_find(dict, (char_u *)"col", -1) != NULL) curwin->w_cursor.col = get_dict_number(dict, (char_u *)"col"); #ifdef FEAT_VIRTUALEDIT if (dict_find(dict, (char_u *)"coladd", -1) != NULL) curwin->w_cursor.coladd = get_dict_number(dict, (char_u *)"coladd"); #endif if (dict_find(dict, (char_u *)"curswant", -1) != NULL) { curwin->w_curswant = get_dict_number(dict, (char_u *)"curswant"); curwin->w_set_curswant = FALSE; } if (dict_find(dict, (char_u *)"topline", -1) != NULL) set_topline(curwin, get_dict_number(dict, (char_u *)"topline")); #ifdef FEAT_DIFF if (dict_find(dict, (char_u *)"topfill", -1) != NULL) curwin->w_topfill = get_dict_number(dict, (char_u *)"topfill"); #endif if (dict_find(dict, (char_u *)"leftcol", -1) != NULL) curwin->w_leftcol = get_dict_number(dict, (char_u *)"leftcol"); if (dict_find(dict, (char_u *)"skipcol", -1) != NULL) curwin->w_skipcol = get_dict_number(dict, (char_u *)"skipcol"); check_cursor(); win_new_height(curwin, curwin->w_height); # ifdef FEAT_VERTSPLIT win_new_width(curwin, W_WIDTH(curwin)); # endif changed_window_setting(); if (curwin->w_topline <= 0) curwin->w_topline = 1; if (curwin->w_topline > curbuf->b_ml.ml_line_count) curwin->w_topline = curbuf->b_ml.ml_line_count; #ifdef FEAT_DIFF check_topfill(curwin, TRUE); #endif } } /* * "winsaveview()" function */ static void f_winsaveview(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { dict_T *dict; if (rettv_dict_alloc(rettv) == FAIL) return; dict = rettv->vval.v_dict; dict_add_nr_str(dict, "lnum", (long)curwin->w_cursor.lnum, NULL); dict_add_nr_str(dict, "col", (long)curwin->w_cursor.col, NULL); #ifdef FEAT_VIRTUALEDIT dict_add_nr_str(dict, "coladd", (long)curwin->w_cursor.coladd, NULL); #endif update_curswant(); dict_add_nr_str(dict, "curswant", (long)curwin->w_curswant, NULL); dict_add_nr_str(dict, "topline", (long)curwin->w_topline, NULL); #ifdef FEAT_DIFF dict_add_nr_str(dict, "topfill", (long)curwin->w_topfill, NULL); #endif dict_add_nr_str(dict, "leftcol", (long)curwin->w_leftcol, NULL); dict_add_nr_str(dict, "skipcol", (long)curwin->w_skipcol, NULL); } /* * "winwidth(nr)" function */ static void f_winwidth(argvars, rettv) typval_T *argvars; typval_T *rettv; { win_T *wp; wp = find_win_by_nr(&argvars[0], NULL); if (wp == NULL) rettv->vval.v_number = -1; else #ifdef FEAT_VERTSPLIT rettv->vval.v_number = wp->w_width; #else rettv->vval.v_number = Columns; #endif } /* * "wordcount()" function */ static void f_wordcount(argvars, rettv) typval_T *argvars UNUSED; typval_T *rettv; { if (rettv_dict_alloc(rettv) == FAIL) return; cursor_pos_info(rettv->vval.v_dict); } /* * Write list of strings to file */ static int write_list(fd, list, binary) FILE *fd; list_T *list; int binary; { listitem_T *li; int c; int ret = OK; char_u *s; for (li = list->lv_first; li != NULL; li = li->li_next) { for (s = get_tv_string(&li->li_tv); *s != NUL; ++s) { if (*s == '\n') c = putc(NUL, fd); else c = putc(*s, fd); if (c == EOF) { ret = FAIL; break; } } if (!binary || li->li_next != NULL) if (putc('\n', fd) == EOF) { ret = FAIL; break; } if (ret == FAIL) { EMSG(_(e_write)); break; } } return ret; } /* * "writefile()" function */ static void f_writefile(argvars, rettv) typval_T *argvars; typval_T *rettv; { int binary = FALSE; int append = FALSE; char_u *fname; FILE *fd; int ret = 0; if (check_restricted() || check_secure()) return; if (argvars[0].v_type != VAR_LIST) { EMSG2(_(e_listarg), "writefile()"); return; } if (argvars[0].vval.v_list == NULL) return; if (argvars[2].v_type != VAR_UNKNOWN) { if (vim_strchr(get_tv_string(&argvars[2]), 'b') != NULL) binary = TRUE; if (vim_strchr(get_tv_string(&argvars[2]), 'a') != NULL) append = TRUE; } /* Always open the file in binary mode, library functions have a mind of * their own about CR-LF conversion. */ fname = get_tv_string(&argvars[1]); if (*fname == NUL || (fd = mch_fopen((char *)fname, append ? APPENDBIN : WRITEBIN)) == NULL) { EMSG2(_(e_notcreate), *fname == NUL ? (char_u *)_("<empty>") : fname); ret = -1; } else { if (write_list(fd, argvars[0].vval.v_list, binary) == FAIL) ret = -1; fclose(fd); } rettv->vval.v_number = ret; } /* * "xor(expr, expr)" function */ static void f_xor(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = get_tv_number_chk(&argvars[0], NULL) ^ get_tv_number_chk(&argvars[1], NULL); } /* * Translate a String variable into a position. * Returns NULL when there is an error. */ static pos_T * var2fpos(varp, dollar_lnum, fnum) typval_T *varp; int dollar_lnum; /* TRUE when $ is last line */ int *fnum; /* set to fnum for '0, 'A, etc. */ { char_u *name; static pos_T pos; pos_T *pp; /* Argument can be [lnum, col, coladd]. */ if (varp->v_type == VAR_LIST) { list_T *l; int len; int error = FALSE; listitem_T *li; l = varp->vval.v_list; if (l == NULL) return NULL; /* Get the line number */ pos.lnum = list_find_nr(l, 0L, &error); if (error || pos.lnum <= 0 || pos.lnum > curbuf->b_ml.ml_line_count) return NULL; /* invalid line number */ /* Get the column number */ pos.col = list_find_nr(l, 1L, &error); if (error) return NULL; len = (long)STRLEN(ml_get(pos.lnum)); /* We accept "$" for the column number: last column. */ li = list_find(l, 1L); if (li != NULL && li->li_tv.v_type == VAR_STRING && li->li_tv.vval.v_string != NULL && STRCMP(li->li_tv.vval.v_string, "$") == 0) pos.col = len + 1; /* Accept a position up to the NUL after the line. */ if (pos.col == 0 || (int)pos.col > len + 1) return NULL; /* invalid column number */ --pos.col; #ifdef FEAT_VIRTUALEDIT /* Get the virtual offset. Defaults to zero. */ pos.coladd = list_find_nr(l, 2L, &error); if (error) pos.coladd = 0; #endif return &pos; } name = get_tv_string_chk(varp); if (name == NULL) return NULL; if (name[0] == '.') /* cursor */ return &curwin->w_cursor; if (name[0] == 'v' && name[1] == NUL) /* Visual start */ { if (VIsual_active) return &VIsual; return &curwin->w_cursor; } if (name[0] == '\'') /* mark */ { pp = getmark_buf_fnum(curbuf, name[1], FALSE, fnum); if (pp == NULL || pp == (pos_T *)-1 || pp->lnum <= 0) return NULL; return pp; } #ifdef FEAT_VIRTUALEDIT pos.coladd = 0; #endif if (name[0] == 'w' && dollar_lnum) { pos.col = 0; if (name[1] == '0') /* "w0": first visible line */ { update_topline(); pos.lnum = curwin->w_topline; return &pos; } else if (name[1] == '$') /* "w$": last visible line */ { validate_botline(); pos.lnum = curwin->w_botline - 1; return &pos; } } else if (name[0] == '$') /* last column or line */ { if (dollar_lnum) { pos.lnum = curbuf->b_ml.ml_line_count; pos.col = 0; } else { pos.lnum = curwin->w_cursor.lnum; pos.col = (colnr_T)STRLEN(ml_get_curline()); } return &pos; } return NULL; } /* * Convert list in "arg" into a position and optional file number. * When "fnump" is NULL there is no file number, only 3 items. * Note that the column is passed on as-is, the caller may want to decrement * it to use 1 for the first column. * Return FAIL when conversion is not possible, doesn't check the position for * validity. */ static int list2fpos(arg, posp, fnump, curswantp) typval_T *arg; pos_T *posp; int *fnump; colnr_T *curswantp; { list_T *l = arg->vval.v_list; long i = 0; long n; /* List must be: [fnum, lnum, col, coladd, curswant], where "fnum" is only * there when "fnump" isn't NULL; "coladd" and "curswant" are optional. */ if (arg->v_type != VAR_LIST || l == NULL || l->lv_len < (fnump == NULL ? 2 : 3) || l->lv_len > (fnump == NULL ? 4 : 5)) return FAIL; if (fnump != NULL) { n = list_find_nr(l, i++, NULL); /* fnum */ if (n < 0) return FAIL; if (n == 0) n = curbuf->b_fnum; /* current buffer */ *fnump = n; } n = list_find_nr(l, i++, NULL); /* lnum */ if (n < 0) return FAIL; posp->lnum = n; n = list_find_nr(l, i++, NULL); /* col */ if (n < 0) return FAIL; posp->col = n; #ifdef FEAT_VIRTUALEDIT n = list_find_nr(l, i, NULL); /* off */ if (n < 0) posp->coladd = 0; else posp->coladd = n; #endif if (curswantp != NULL) *curswantp = list_find_nr(l, i + 1, NULL); /* curswant */ return OK; } /* * Get the length of an environment variable name. * Advance "arg" to the first character after the name. * Return 0 for error. */ static int get_env_len(arg) char_u **arg; { char_u *p; int len; for (p = *arg; vim_isIDc(*p); ++p) ; if (p == *arg) /* no name found */ return 0; len = (int)(p - *arg); *arg = p; return len; } /* * Get the length of the name of a function or internal variable. * "arg" is advanced to the first non-white character after the name. * Return 0 if something is wrong. */ static int get_id_len(arg) char_u **arg; { char_u *p; int len; /* Find the end of the name. */ for (p = *arg; eval_isnamec(*p); ++p) { if (*p == ':') { /* "s:" is start of "s:var", but "n:" is not and can be used in * slice "[n:]". Also "xx:" is not a namespace. */ len = (int)(p - *arg); if ((len == 1 && vim_strchr(NAMESPACE_CHAR, **arg) == NULL) || len > 1) break; } } if (p == *arg) /* no name found */ return 0; len = (int)(p - *arg); *arg = skipwhite(p); return len; } /* * Get the length of the name of a variable or function. * Only the name is recognized, does not handle ".key" or "[idx]". * "arg" is advanced to the first non-white character after the name. * Return -1 if curly braces expansion failed. * Return 0 if something else is wrong. * If the name contains 'magic' {}'s, expand them and return the * expanded name in an allocated string via 'alias' - caller must free. */ static int get_name_len(arg, alias, evaluate, verbose) char_u **arg; char_u **alias; int evaluate; int verbose; { int len; char_u *p; char_u *expr_start; char_u *expr_end; *alias = NULL; /* default to no alias */ if ((*arg)[0] == K_SPECIAL && (*arg)[1] == KS_EXTRA && (*arg)[2] == (int)KE_SNR) { /* hard coded <SNR>, already translated */ *arg += 3; return get_id_len(arg) + 3; } len = eval_fname_script(*arg); if (len > 0) { /* literal "<SID>", "s:" or "<SNR>" */ *arg += len; } /* * Find the end of the name; check for {} construction. */ p = find_name_end(*arg, &expr_start, &expr_end, len > 0 ? 0 : FNE_CHECK_START); if (expr_start != NULL) { char_u *temp_string; if (!evaluate) { len += (int)(p - *arg); *arg = skipwhite(p); return len; } /* * Include any <SID> etc in the expanded string: * Thus the -len here. */ temp_string = make_expanded_name(*arg - len, expr_start, expr_end, p); if (temp_string == NULL) return -1; *alias = temp_string; *arg = skipwhite(p); return (int)STRLEN(temp_string); } len += get_id_len(arg); if (len == 0 && verbose) EMSG2(_(e_invexpr2), *arg); return len; } /* * Find the end of a variable or function name, taking care of magic braces. * If "expr_start" is not NULL then "expr_start" and "expr_end" are set to the * start and end of the first magic braces item. * "flags" can have FNE_INCL_BR and FNE_CHECK_START. * Return a pointer to just after the name. Equal to "arg" if there is no * valid name. */ static char_u * find_name_end(arg, expr_start, expr_end, flags) char_u *arg; char_u **expr_start; char_u **expr_end; int flags; { int mb_nest = 0; int br_nest = 0; char_u *p; int len; if (expr_start != NULL) { *expr_start = NULL; *expr_end = NULL; } /* Quick check for valid starting character. */ if ((flags & FNE_CHECK_START) && !eval_isnamec1(*arg) && *arg != '{') return arg; for (p = arg; *p != NUL && (eval_isnamec(*p) || *p == '{' || ((flags & FNE_INCL_BR) && (*p == '[' || *p == '.')) || mb_nest != 0 || br_nest != 0); mb_ptr_adv(p)) { if (*p == '\'') { /* skip over 'string' to avoid counting [ and ] inside it. */ for (p = p + 1; *p != NUL && *p != '\''; mb_ptr_adv(p)) ; if (*p == NUL) break; } else if (*p == '"') { /* skip over "str\"ing" to avoid counting [ and ] inside it. */ for (p = p + 1; *p != NUL && *p != '"'; mb_ptr_adv(p)) if (*p == '\\' && p[1] != NUL) ++p; if (*p == NUL) break; } else if (br_nest == 0 && mb_nest == 0 && *p == ':') { /* "s:" is start of "s:var", but "n:" is not and can be used in * slice "[n:]". Also "xx:" is not a namespace. But {ns}: is. */ len = (int)(p - arg); if ((len == 1 && vim_strchr(NAMESPACE_CHAR, *arg) == NULL) || (len > 1 && p[-1] != '}')) break; } if (mb_nest == 0) { if (*p == '[') ++br_nest; else if (*p == ']') --br_nest; } if (br_nest == 0) { if (*p == '{') { mb_nest++; if (expr_start != NULL && *expr_start == NULL) *expr_start = p; } else if (*p == '}') { mb_nest--; if (expr_start != NULL && mb_nest == 0 && *expr_end == NULL) *expr_end = p; } } } return p; } /* * Expands out the 'magic' {}'s in a variable/function name. * Note that this can call itself recursively, to deal with * constructs like foo{bar}{baz}{bam} * The four pointer arguments point to "foo{expre}ss{ion}bar" * "in_start" ^ * "expr_start" ^ * "expr_end" ^ * "in_end" ^ * * Returns a new allocated string, which the caller must free. * Returns NULL for failure. */ static char_u * make_expanded_name(in_start, expr_start, expr_end, in_end) char_u *in_start; char_u *expr_start; char_u *expr_end; char_u *in_end; { char_u c1; char_u *retval = NULL; char_u *temp_result; char_u *nextcmd = NULL; if (expr_end == NULL || in_end == NULL) return NULL; *expr_start = NUL; *expr_end = NUL; c1 = *in_end; *in_end = NUL; temp_result = eval_to_string(expr_start + 1, &nextcmd, FALSE); if (temp_result != NULL && nextcmd == NULL) { retval = alloc((unsigned)(STRLEN(temp_result) + (expr_start - in_start) + (in_end - expr_end) + 1)); if (retval != NULL) { STRCPY(retval, in_start); STRCAT(retval, temp_result); STRCAT(retval, expr_end + 1); } } vim_free(temp_result); *in_end = c1; /* put char back for error messages */ *expr_start = '{'; *expr_end = '}'; if (retval != NULL) { temp_result = find_name_end(retval, &expr_start, &expr_end, 0); if (expr_start != NULL) { /* Further expansion! */ temp_result = make_expanded_name(retval, expr_start, expr_end, temp_result); vim_free(retval); retval = temp_result; } } return retval; } /* * Return TRUE if character "c" can be used in a variable or function name. * Does not include '{' or '}' for magic braces. */ static int eval_isnamec(c) int c; { return (ASCII_ISALNUM(c) || c == '_' || c == ':' || c == AUTOLOAD_CHAR); } /* * Return TRUE if character "c" can be used as the first character in a * variable or function name (excluding '{' and '}'). */ static int eval_isnamec1(c) int c; { return (ASCII_ISALPHA(c) || c == '_'); } /* * Set number v: variable to "val". */ void set_vim_var_nr(idx, val) int idx; long val; { vimvars[idx].vv_nr = val; } /* * Get number v: variable value. */ long get_vim_var_nr(idx) int idx; { return vimvars[idx].vv_nr; } /* * Get string v: variable value. Uses a static buffer, can only be used once. */ char_u * get_vim_var_str(idx) int idx; { return get_tv_string(&vimvars[idx].vv_tv); } /* * Get List v: variable value. Caller must take care of reference count when * needed. */ list_T * get_vim_var_list(idx) int idx; { return vimvars[idx].vv_list; } /* * Set v:char to character "c". */ void set_vim_var_char(c) int c; { char_u buf[MB_MAXBYTES + 1]; #ifdef FEAT_MBYTE if (has_mbyte) buf[(*mb_char2bytes)(c, buf)] = NUL; else #endif { buf[0] = c; buf[1] = NUL; } set_vim_var_string(VV_CHAR, buf, -1); } /* * Set v:count to "count" and v:count1 to "count1". * When "set_prevcount" is TRUE first set v:prevcount from v:count. */ void set_vcount(count, count1, set_prevcount) long count; long count1; int set_prevcount; { if (set_prevcount) vimvars[VV_PREVCOUNT].vv_nr = vimvars[VV_COUNT].vv_nr; vimvars[VV_COUNT].vv_nr = count; vimvars[VV_COUNT1].vv_nr = count1; } /* * Set string v: variable to a copy of "val". */ void set_vim_var_string(idx, val, len) int idx; char_u *val; int len; /* length of "val" to use or -1 (whole string) */ { /* Need to do this (at least) once, since we can't initialize a union. * Will always be invoked when "v:progname" is set. */ vimvars[VV_VERSION].vv_nr = VIM_VERSION_100; vim_free(vimvars[idx].vv_str); if (val == NULL) vimvars[idx].vv_str = NULL; else if (len == -1) vimvars[idx].vv_str = vim_strsave(val); else vimvars[idx].vv_str = vim_strnsave(val, len); } /* * Set List v: variable to "val". */ void set_vim_var_list(idx, val) int idx; list_T *val; { list_unref(vimvars[idx].vv_list); vimvars[idx].vv_list = val; if (val != NULL) ++val->lv_refcount; } /* * Set Dictionary v: variable to "val". */ void set_vim_var_dict(idx, val) int idx; dict_T *val; { int todo; hashitem_T *hi; dict_unref(vimvars[idx].vv_dict); vimvars[idx].vv_dict = val; if (val != NULL) { ++val->dv_refcount; /* Set readonly */ todo = (int)val->dv_hashtab.ht_used; for (hi = val->dv_hashtab.ht_array; todo > 0 ; ++hi) { if (HASHITEM_EMPTY(hi)) continue; --todo; HI2DI(hi)->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; } } } /* * Set v:register if needed. */ void set_reg_var(c) int c; { char_u regname; if (c == 0 || c == ' ') regname = '"'; else regname = c; /* Avoid free/alloc when the value is already right. */ if (vimvars[VV_REG].vv_str == NULL || vimvars[VV_REG].vv_str[0] != c) set_vim_var_string(VV_REG, ®name, 1); } /* * Get or set v:exception. If "oldval" == NULL, return the current value. * Otherwise, restore the value to "oldval" and return NULL. * Must always be called in pairs to save and restore v:exception! Does not * take care of memory allocations. */ char_u * v_exception(oldval) char_u *oldval; { if (oldval == NULL) return vimvars[VV_EXCEPTION].vv_str; vimvars[VV_EXCEPTION].vv_str = oldval; return NULL; } /* * Get or set v:throwpoint. If "oldval" == NULL, return the current value. * Otherwise, restore the value to "oldval" and return NULL. * Must always be called in pairs to save and restore v:throwpoint! Does not * take care of memory allocations. */ char_u * v_throwpoint(oldval) char_u *oldval; { if (oldval == NULL) return vimvars[VV_THROWPOINT].vv_str; vimvars[VV_THROWPOINT].vv_str = oldval; return NULL; } #if defined(FEAT_AUTOCMD) || defined(PROTO) /* * Set v:cmdarg. * If "eap" != NULL, use "eap" to generate the value and return the old value. * If "oldarg" != NULL, restore the value to "oldarg" and return NULL. * Must always be called in pairs! */ char_u * set_cmdarg(eap, oldarg) exarg_T *eap; char_u *oldarg; { char_u *oldval; char_u *newval; unsigned len; oldval = vimvars[VV_CMDARG].vv_str; if (eap == NULL) { vim_free(oldval); vimvars[VV_CMDARG].vv_str = oldarg; return NULL; } if (eap->force_bin == FORCE_BIN) len = 6; else if (eap->force_bin == FORCE_NOBIN) len = 8; else len = 0; if (eap->read_edit) len += 7; if (eap->force_ff != 0) len += (unsigned)STRLEN(eap->cmd + eap->force_ff) + 6; # ifdef FEAT_MBYTE if (eap->force_enc != 0) len += (unsigned)STRLEN(eap->cmd + eap->force_enc) + 7; if (eap->bad_char != 0) len += 7 + 4; /* " ++bad=" + "keep" or "drop" */ # endif newval = alloc(len + 1); if (newval == NULL) return NULL; if (eap->force_bin == FORCE_BIN) sprintf((char *)newval, " ++bin"); else if (eap->force_bin == FORCE_NOBIN) sprintf((char *)newval, " ++nobin"); else *newval = NUL; if (eap->read_edit) STRCAT(newval, " ++edit"); if (eap->force_ff != 0) sprintf((char *)newval + STRLEN(newval), " ++ff=%s", eap->cmd + eap->force_ff); # ifdef FEAT_MBYTE if (eap->force_enc != 0) sprintf((char *)newval + STRLEN(newval), " ++enc=%s", eap->cmd + eap->force_enc); if (eap->bad_char == BAD_KEEP) STRCPY(newval + STRLEN(newval), " ++bad=keep"); else if (eap->bad_char == BAD_DROP) STRCPY(newval + STRLEN(newval), " ++bad=drop"); else if (eap->bad_char != 0) sprintf((char *)newval + STRLEN(newval), " ++bad=%c", eap->bad_char); # endif vimvars[VV_CMDARG].vv_str = newval; return oldval; } #endif /* * Get the value of internal variable "name". * Return OK or FAIL. */ static int get_var_tv(name, len, rettv, dip, verbose, no_autoload) char_u *name; int len; /* length of "name" */ typval_T *rettv; /* NULL when only checking existence */ dictitem_T **dip; /* non-NULL when typval's dict item is needed */ int verbose; /* may give error message */ int no_autoload; /* do not use script autoloading */ { int ret = OK; typval_T *tv = NULL; typval_T atv; dictitem_T *v; int cc; /* truncate the name, so that we can use strcmp() */ cc = name[len]; name[len] = NUL; /* * Check for "b:changedtick". */ if (STRCMP(name, "b:changedtick") == 0) { atv.v_type = VAR_NUMBER; atv.vval.v_number = curbuf->b_changedtick; tv = &atv; } /* * Check for user-defined variables. */ else { v = find_var(name, NULL, no_autoload); if (v != NULL) { tv = &v->di_tv; if (dip != NULL) *dip = v; } } if (tv == NULL) { if (rettv != NULL && verbose) EMSG2(_(e_undefvar), name); ret = FAIL; } else if (rettv != NULL) copy_tv(tv, rettv); name[len] = cc; return ret; } /* * Handle expr[expr], expr[expr:expr] subscript and .name lookup. * Also handle function call with Funcref variable: func(expr) * Can all be combined: dict.func(expr)[idx]['func'](expr) */ static int handle_subscript(arg, rettv, evaluate, verbose) char_u **arg; typval_T *rettv; int evaluate; /* do more than finding the end */ int verbose; /* give error messages */ { int ret = OK; dict_T *selfdict = NULL; char_u *s; int len; typval_T functv; while (ret == OK && (**arg == '[' || (**arg == '.' && rettv->v_type == VAR_DICT) || (**arg == '(' && (!evaluate || rettv->v_type == VAR_FUNC))) && !vim_iswhite(*(*arg - 1))) { if (**arg == '(') { /* need to copy the funcref so that we can clear rettv */ if (evaluate) { functv = *rettv; rettv->v_type = VAR_UNKNOWN; /* Invoke the function. Recursive! */ s = functv.vval.v_string; } else s = (char_u *)""; ret = get_func_tv(s, (int)STRLEN(s), rettv, arg, curwin->w_cursor.lnum, curwin->w_cursor.lnum, &len, evaluate, selfdict); /* Clear the funcref afterwards, so that deleting it while * evaluating the arguments is possible (see test55). */ if (evaluate) clear_tv(&functv); /* Stop the expression evaluation when immediately aborting on * error, or when an interrupt occurred or an exception was thrown * but not caught. */ if (aborting()) { if (ret == OK) clear_tv(rettv); ret = FAIL; } dict_unref(selfdict); selfdict = NULL; } else /* **arg == '[' || **arg == '.' */ { dict_unref(selfdict); if (rettv->v_type == VAR_DICT) { selfdict = rettv->vval.v_dict; if (selfdict != NULL) ++selfdict->dv_refcount; } else selfdict = NULL; if (eval_index(arg, rettv, evaluate, verbose) == FAIL) { clear_tv(rettv); ret = FAIL; } } } dict_unref(selfdict); return ret; } /* * Allocate memory for a variable type-value, and make it empty (0 or NULL * value). */ static typval_T * alloc_tv() { return (typval_T *)alloc_clear((unsigned)sizeof(typval_T)); } /* * Allocate memory for a variable type-value, and assign a string to it. * The string "s" must have been allocated, it is consumed. * Return NULL for out of memory, the variable otherwise. */ static typval_T * alloc_string_tv(s) char_u *s; { typval_T *rettv; rettv = alloc_tv(); if (rettv != NULL) { rettv->v_type = VAR_STRING; rettv->vval.v_string = s; } else vim_free(s); return rettv; } /* * Free the memory for a variable type-value. */ void free_tv(varp) typval_T *varp; { if (varp != NULL) { switch (varp->v_type) { case VAR_FUNC: func_unref(varp->vval.v_string); /*FALLTHROUGH*/ case VAR_STRING: vim_free(varp->vval.v_string); break; case VAR_LIST: list_unref(varp->vval.v_list); break; case VAR_DICT: dict_unref(varp->vval.v_dict); break; case VAR_NUMBER: #ifdef FEAT_FLOAT case VAR_FLOAT: #endif case VAR_UNKNOWN: case VAR_SPECIAL: break; default: EMSG2(_(e_intern2), "free_tv()"); break; } vim_free(varp); } } /* * Free the memory for a variable value and set the value to NULL or 0. */ void clear_tv(varp) typval_T *varp; { if (varp != NULL) { switch (varp->v_type) { case VAR_FUNC: func_unref(varp->vval.v_string); /*FALLTHROUGH*/ case VAR_STRING: vim_free(varp->vval.v_string); varp->vval.v_string = NULL; break; case VAR_LIST: list_unref(varp->vval.v_list); varp->vval.v_list = NULL; break; case VAR_DICT: dict_unref(varp->vval.v_dict); varp->vval.v_dict = NULL; break; case VAR_NUMBER: case VAR_SPECIAL: varp->vval.v_number = 0; break; #ifdef FEAT_FLOAT case VAR_FLOAT: varp->vval.v_float = 0.0; break; #endif case VAR_UNKNOWN: break; default: EMSG2(_(e_intern2), "clear_tv()"); } varp->v_lock = 0; } } /* * Set the value of a variable to NULL without freeing items. */ static void init_tv(varp) typval_T *varp; { if (varp != NULL) vim_memset(varp, 0, sizeof(typval_T)); } /* * Get the number value of a variable. * If it is a String variable, uses vim_str2nr(). * For incompatible types, return 0. * get_tv_number_chk() is similar to get_tv_number(), but informs the * caller of incompatible types: it sets *denote to TRUE if "denote" * is not NULL or returns -1 otherwise. */ static long get_tv_number(varp) typval_T *varp; { int error = FALSE; return get_tv_number_chk(varp, &error); /* return 0L on error */ } long get_tv_number_chk(varp, denote) typval_T *varp; int *denote; { long n = 0L; switch (varp->v_type) { case VAR_NUMBER: return (long)(varp->vval.v_number); #ifdef FEAT_FLOAT case VAR_FLOAT: EMSG(_("E805: Using a Float as a Number")); break; #endif case VAR_FUNC: EMSG(_("E703: Using a Funcref as a Number")); break; case VAR_STRING: if (varp->vval.v_string != NULL) vim_str2nr(varp->vval.v_string, NULL, NULL, STR2NR_ALL, &n, NULL, 0); return n; case VAR_LIST: EMSG(_("E745: Using a List as a Number")); break; case VAR_DICT: EMSG(_("E728: Using a Dictionary as a Number")); break; case VAR_SPECIAL: return varp->vval.v_number == VVAL_TRUE ? 1 : 0; break; default: EMSG2(_(e_intern2), "get_tv_number()"); break; } if (denote == NULL) /* useful for values that must be unsigned */ n = -1; else *denote = TRUE; return n; } #ifdef FEAT_FLOAT static float_T get_tv_float(varp) typval_T *varp; { switch (varp->v_type) { case VAR_NUMBER: return (float_T)(varp->vval.v_number); #ifdef FEAT_FLOAT case VAR_FLOAT: return varp->vval.v_float; break; #endif case VAR_FUNC: EMSG(_("E891: Using a Funcref as a Float")); break; case VAR_STRING: EMSG(_("E892: Using a String as a Float")); break; case VAR_LIST: EMSG(_("E893: Using a List as a Float")); break; case VAR_DICT: EMSG(_("E894: Using a Dictionary as a Float")); break; default: EMSG2(_(e_intern2), "get_tv_float()"); break; } return 0; } #endif /* * Get the lnum from the first argument. * Also accepts ".", "$", etc., but that only works for the current buffer. * Returns -1 on error. */ static linenr_T get_tv_lnum(argvars) typval_T *argvars; { typval_T rettv; linenr_T lnum; lnum = get_tv_number_chk(&argvars[0], NULL); if (lnum == 0) /* no valid number, try using line() */ { rettv.v_type = VAR_NUMBER; f_line(argvars, &rettv); lnum = rettv.vval.v_number; clear_tv(&rettv); } return lnum; } /* * Get the lnum from the first argument. * Also accepts "$", then "buf" is used. * Returns 0 on error. */ static linenr_T get_tv_lnum_buf(argvars, buf) typval_T *argvars; buf_T *buf; { if (argvars[0].v_type == VAR_STRING && argvars[0].vval.v_string != NULL && argvars[0].vval.v_string[0] == '$' && buf != NULL) return buf->b_ml.ml_line_count; return get_tv_number_chk(&argvars[0], NULL); } /* * Get the string value of a variable. * If it is a Number variable, the number is converted into a string. * get_tv_string() uses a single, static buffer. YOU CAN ONLY USE IT ONCE! * get_tv_string_buf() uses a given buffer. * If the String variable has never been set, return an empty string. * Never returns NULL; * get_tv_string_chk() and get_tv_string_buf_chk() are similar, but return * NULL on error. */ static char_u * get_tv_string(varp) typval_T *varp; { static char_u mybuf[NUMBUFLEN]; return get_tv_string_buf(varp, mybuf); } static char_u * get_tv_string_buf(varp, buf) typval_T *varp; char_u *buf; { char_u *res = get_tv_string_buf_chk(varp, buf); return res != NULL ? res : (char_u *)""; } /* * Careful: This uses a single, static buffer. YOU CAN ONLY USE IT ONCE! */ char_u * get_tv_string_chk(varp) typval_T *varp; { static char_u mybuf[NUMBUFLEN]; return get_tv_string_buf_chk(varp, mybuf); } char_u * get_tv_string_buf_chk(varp, buf) typval_T *varp; char_u *buf; { switch (varp->v_type) { case VAR_NUMBER: sprintf((char *)buf, "%ld", (long)varp->vval.v_number); return buf; case VAR_FUNC: EMSG(_("E729: using Funcref as a String")); break; case VAR_LIST: EMSG(_("E730: using List as a String")); break; case VAR_DICT: EMSG(_("E731: using Dictionary as a String")); break; #ifdef FEAT_FLOAT case VAR_FLOAT: EMSG(_(e_float_as_string)); break; #endif case VAR_STRING: if (varp->vval.v_string != NULL) return varp->vval.v_string; return (char_u *)""; case VAR_SPECIAL: STRCPY(buf, get_var_special_name(varp->vval.v_number)); return buf; default: EMSG2(_(e_intern2), "get_tv_string_buf()"); break; } return NULL; } /* * Find variable "name" in the list of variables. * Return a pointer to it if found, NULL if not found. * Careful: "a:0" variables don't have a name. * When "htp" is not NULL we are writing to the variable, set "htp" to the * hashtab_T used. */ static dictitem_T * find_var(name, htp, no_autoload) char_u *name; hashtab_T **htp; int no_autoload; { char_u *varname; hashtab_T *ht; ht = find_var_ht(name, &varname); if (htp != NULL) *htp = ht; if (ht == NULL) return NULL; return find_var_in_ht(ht, *name, varname, no_autoload || htp != NULL); } /* * Find variable "varname" in hashtab "ht" with name "htname". * Returns NULL if not found. */ static dictitem_T * find_var_in_ht(ht, htname, varname, no_autoload) hashtab_T *ht; int htname; char_u *varname; int no_autoload; { hashitem_T *hi; if (*varname == NUL) { /* Must be something like "s:", otherwise "ht" would be NULL. */ switch (htname) { case 's': return &SCRIPT_SV(current_SID)->sv_var; case 'g': return &globvars_var; case 'v': return &vimvars_var; case 'b': return &curbuf->b_bufvar; case 'w': return &curwin->w_winvar; #ifdef FEAT_WINDOWS case 't': return &curtab->tp_winvar; #endif case 'l': return current_funccal == NULL ? NULL : ¤t_funccal->l_vars_var; case 'a': return current_funccal == NULL ? NULL : ¤t_funccal->l_avars_var; } return NULL; } hi = hash_find(ht, varname); if (HASHITEM_EMPTY(hi)) { /* For global variables we may try auto-loading the script. If it * worked find the variable again. Don't auto-load a script if it was * loaded already, otherwise it would be loaded every time when * checking if a function name is a Funcref variable. */ if (ht == &globvarht && !no_autoload) { /* Note: script_autoload() may make "hi" invalid. It must either * be obtained again or not used. */ if (!script_autoload(varname, FALSE) || aborting()) return NULL; hi = hash_find(ht, varname); } if (HASHITEM_EMPTY(hi)) return NULL; } return HI2DI(hi); } /* * Find the hashtab used for a variable name. * Return NULL if the name is not valid. * Set "varname" to the start of name without ':'. */ static hashtab_T * find_var_ht(name, varname) char_u *name; char_u **varname; { hashitem_T *hi; if (name[0] == NUL) return NULL; if (name[1] != ':') { /* The name must not start with a colon or #. */ if (name[0] == ':' || name[0] == AUTOLOAD_CHAR) return NULL; *varname = name; /* "version" is "v:version" in all scopes */ hi = hash_find(&compat_hashtab, name); if (!HASHITEM_EMPTY(hi)) return &compat_hashtab; if (current_funccal == NULL) return &globvarht; /* global variable */ return &get_funccal()->l_vars.dv_hashtab; /* l: variable */ } *varname = name + 2; if (*name == 'g') /* global variable */ return &globvarht; /* There must be no ':' or '#' in the rest of the name, unless g: is used */ if (vim_strchr(name + 2, ':') != NULL || vim_strchr(name + 2, AUTOLOAD_CHAR) != NULL) return NULL; if (*name == 'b') /* buffer variable */ return &curbuf->b_vars->dv_hashtab; if (*name == 'w') /* window variable */ return &curwin->w_vars->dv_hashtab; #ifdef FEAT_WINDOWS if (*name == 't') /* tab page variable */ return &curtab->tp_vars->dv_hashtab; #endif if (*name == 'v') /* v: variable */ return &vimvarht; if (*name == 'a' && current_funccal != NULL) /* function argument */ return &get_funccal()->l_avars.dv_hashtab; if (*name == 'l' && current_funccal != NULL) /* local function variable */ return &get_funccal()->l_vars.dv_hashtab; if (*name == 's' /* script variable */ && current_SID > 0 && current_SID <= ga_scripts.ga_len) return &SCRIPT_VARS(current_SID); return NULL; } /* * Get function call environment based on bactrace debug level */ static funccall_T * get_funccal() { int i; funccall_T *funccal; funccall_T *temp_funccal; funccal = current_funccal; if (debug_backtrace_level > 0) { for (i = 0; i < debug_backtrace_level; i++) { temp_funccal = funccal->caller; if (temp_funccal) funccal = temp_funccal; else /* backtrace level overflow. reset to max */ debug_backtrace_level = i; } } return funccal; } /* * Get the string value of a (global/local) variable. * Note: see get_tv_string() for how long the pointer remains valid. * Returns NULL when it doesn't exist. */ char_u * get_var_value(name) char_u *name; { dictitem_T *v; v = find_var(name, NULL, FALSE); if (v == NULL) return NULL; return get_tv_string(&v->di_tv); } /* * Allocate a new hashtab for a sourced script. It will be used while * sourcing this script and when executing functions defined in the script. */ void new_script_vars(id) scid_T id; { int i; hashtab_T *ht; scriptvar_T *sv; if (ga_grow(&ga_scripts, (int)(id - ga_scripts.ga_len)) == OK) { /* Re-allocating ga_data means that an ht_array pointing to * ht_smallarray becomes invalid. We can recognize this: ht_mask is * at its init value. Also reset "v_dict", it's always the same. */ for (i = 1; i <= ga_scripts.ga_len; ++i) { ht = &SCRIPT_VARS(i); if (ht->ht_mask == HT_INIT_SIZE - 1) ht->ht_array = ht->ht_smallarray; sv = SCRIPT_SV(i); sv->sv_var.di_tv.vval.v_dict = &sv->sv_dict; } while (ga_scripts.ga_len < id) { sv = SCRIPT_SV(ga_scripts.ga_len + 1) = (scriptvar_T *)alloc_clear(sizeof(scriptvar_T)); init_var_dict(&sv->sv_dict, &sv->sv_var, VAR_SCOPE); ++ga_scripts.ga_len; } } } /* * Initialize dictionary "dict" as a scope and set variable "dict_var" to * point to it. */ void init_var_dict(dict, dict_var, scope) dict_T *dict; dictitem_T *dict_var; int scope; { hash_init(&dict->dv_hashtab); dict->dv_lock = 0; dict->dv_scope = scope; dict->dv_refcount = DO_NOT_FREE_CNT; dict->dv_copyID = 0; dict_var->di_tv.vval.v_dict = dict; dict_var->di_tv.v_type = VAR_DICT; dict_var->di_tv.v_lock = VAR_FIXED; dict_var->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; dict_var->di_key[0] = NUL; } /* * Unreference a dictionary initialized by init_var_dict(). */ void unref_var_dict(dict) dict_T *dict; { /* Now the dict needs to be freed if no one else is using it, go back to * normal reference counting. */ dict->dv_refcount -= DO_NOT_FREE_CNT - 1; dict_unref(dict); } /* * Clean up a list of internal variables. * Frees all allocated variables and the value they contain. * Clears hashtab "ht", does not free it. */ void vars_clear(ht) hashtab_T *ht; { vars_clear_ext(ht, TRUE); } /* * Like vars_clear(), but only free the value if "free_val" is TRUE. */ static void vars_clear_ext(ht, free_val) hashtab_T *ht; int free_val; { int todo; hashitem_T *hi; dictitem_T *v; hash_lock(ht); todo = (int)ht->ht_used; for (hi = ht->ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; /* Free the variable. Don't remove it from the hashtab, * ht_array might change then. hash_clear() takes care of it * later. */ v = HI2DI(hi); if (free_val) clear_tv(&v->di_tv); if (v->di_flags & DI_FLAGS_ALLOC) vim_free(v); } } hash_clear(ht); ht->ht_used = 0; } /* * Delete a variable from hashtab "ht" at item "hi". * Clear the variable value and free the dictitem. */ static void delete_var(ht, hi) hashtab_T *ht; hashitem_T *hi; { dictitem_T *di = HI2DI(hi); hash_remove(ht, hi); clear_tv(&di->di_tv); vim_free(di); } /* * List the value of one internal variable. */ static void list_one_var(v, prefix, first) dictitem_T *v; char_u *prefix; int *first; { char_u *tofree; char_u *s; char_u numbuf[NUMBUFLEN]; s = echo_string(&v->di_tv, &tofree, numbuf, get_copyID()); list_one_var_a(prefix, v->di_key, v->di_tv.v_type, s == NULL ? (char_u *)"" : s, first); vim_free(tofree); } static void list_one_var_a(prefix, name, type, string, first) char_u *prefix; char_u *name; int type; char_u *string; int *first; /* when TRUE clear rest of screen and set to FALSE */ { /* don't use msg() or msg_attr() to avoid overwriting "v:statusmsg" */ msg_start(); msg_puts(prefix); if (name != NULL) /* "a:" vars don't have a name stored */ msg_puts(name); msg_putchar(' '); msg_advance(22); if (type == VAR_NUMBER) msg_putchar('#'); else if (type == VAR_FUNC) msg_putchar('*'); else if (type == VAR_LIST) { msg_putchar('['); if (*string == '[') ++string; } else if (type == VAR_DICT) { msg_putchar('{'); if (*string == '{') ++string; } else msg_putchar(' '); msg_outtrans(string); if (type == VAR_FUNC) msg_puts((char_u *)"()"); if (*first) { msg_clr_eos(); *first = FALSE; } } /* * Set variable "name" to value in "tv". * If the variable already exists, the value is updated. * Otherwise the variable is created. */ static void set_var(name, tv, copy) char_u *name; typval_T *tv; int copy; /* make copy of value in "tv" */ { dictitem_T *v; char_u *varname; hashtab_T *ht; ht = find_var_ht(name, &varname); if (ht == NULL || *varname == NUL) { EMSG2(_(e_illvar), name); return; } v = find_var_in_ht(ht, 0, varname, TRUE); if (tv->v_type == VAR_FUNC && var_check_func_name(name, v == NULL)) return; if (v != NULL) { /* existing variable, need to clear the value */ if (var_check_ro(v->di_flags, name, FALSE) || tv_check_lock(v->di_tv.v_lock, name, FALSE)) return; if (v->di_tv.v_type != tv->v_type && !((v->di_tv.v_type == VAR_STRING || v->di_tv.v_type == VAR_NUMBER) && (tv->v_type == VAR_STRING || tv->v_type == VAR_NUMBER)) #ifdef FEAT_FLOAT && !((v->di_tv.v_type == VAR_NUMBER || v->di_tv.v_type == VAR_FLOAT) && (tv->v_type == VAR_NUMBER || tv->v_type == VAR_FLOAT)) #endif ) { EMSG2(_("E706: Variable type mismatch for: %s"), name); return; } /* * Handle setting internal v: variables separately where needed to * prevent changing the type. */ if (ht == &vimvarht) { if (v->di_tv.v_type == VAR_STRING) { vim_free(v->di_tv.vval.v_string); if (copy || tv->v_type != VAR_STRING) v->di_tv.vval.v_string = vim_strsave(get_tv_string(tv)); else { /* Take over the string to avoid an extra alloc/free. */ v->di_tv.vval.v_string = tv->vval.v_string; tv->vval.v_string = NULL; } return; } else if (v->di_tv.v_type == VAR_NUMBER) { v->di_tv.vval.v_number = get_tv_number(tv); if (STRCMP(varname, "searchforward") == 0) set_search_direction(v->di_tv.vval.v_number ? '/' : '?'); #ifdef FEAT_SEARCH_EXTRA else if (STRCMP(varname, "hlsearch") == 0) { no_hlsearch = !v->di_tv.vval.v_number; redraw_all_later(SOME_VALID); } #endif return; } else if (v->di_tv.v_type != tv->v_type) EMSG2(_(e_intern2), "set_var()"); } clear_tv(&v->di_tv); } else /* add a new variable */ { /* Can't add "v:" variable. */ if (ht == &vimvarht) { EMSG2(_(e_illvar), name); return; } /* Make sure the variable name is valid. */ if (!valid_varname(varname)) return; v = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T) + STRLEN(varname))); if (v == NULL) return; STRCPY(v->di_key, varname); if (hash_add(ht, DI2HIKEY(v)) == FAIL) { vim_free(v); return; } v->di_flags = DI_FLAGS_ALLOC; } if (copy || tv->v_type == VAR_NUMBER || tv->v_type == VAR_FLOAT) copy_tv(tv, &v->di_tv); else { v->di_tv = *tv; v->di_tv.v_lock = 0; init_tv(tv); } } /* * Return TRUE if di_flags "flags" indicates variable "name" is read-only. * Also give an error message. */ static int var_check_ro(flags, name, use_gettext) int flags; char_u *name; int use_gettext; { if (flags & DI_FLAGS_RO) { EMSG2(_(e_readonlyvar), use_gettext ? (char_u *)_(name) : name); return TRUE; } if ((flags & DI_FLAGS_RO_SBX) && sandbox) { EMSG2(_(e_readonlysbx), use_gettext ? (char_u *)_(name) : name); return TRUE; } return FALSE; } /* * Return TRUE if di_flags "flags" indicates variable "name" is fixed. * Also give an error message. */ static int var_check_fixed(flags, name, use_gettext) int flags; char_u *name; int use_gettext; { if (flags & DI_FLAGS_FIX) { EMSG2(_("E795: Cannot delete variable %s"), use_gettext ? (char_u *)_(name) : name); return TRUE; } return FALSE; } /* * Check if a funcref is assigned to a valid variable name. * Return TRUE and give an error if not. */ static int var_check_func_name(name, new_var) char_u *name; /* points to start of variable name */ int new_var; /* TRUE when creating the variable */ { /* Allow for w: b: s: and t:. */ if (!(vim_strchr((char_u *)"wbst", name[0]) != NULL && name[1] == ':') && !ASCII_ISUPPER((name[0] != NUL && name[1] == ':') ? name[2] : name[0])) { EMSG2(_("E704: Funcref variable name must start with a capital: %s"), name); return TRUE; } /* Don't allow hiding a function. When "v" is not NULL we might be * assigning another function to the same var, the type is checked * below. */ if (new_var && function_exists(name)) { EMSG2(_("E705: Variable name conflicts with existing function: %s"), name); return TRUE; } return FALSE; } /* * Check if a variable name is valid. * Return FALSE and give an error if not. */ static int valid_varname(varname) char_u *varname; { char_u *p; for (p = varname; *p != NUL; ++p) if (!eval_isnamec1(*p) && (p == varname || !VIM_ISDIGIT(*p)) && *p != AUTOLOAD_CHAR) { EMSG2(_(e_illvar), varname); return FALSE; } return TRUE; } /* * Return TRUE if typeval "tv" is set to be locked (immutable). * Also give an error message, using "name" or _("name") when use_gettext is * TRUE. */ static int tv_check_lock(lock, name, use_gettext) int lock; char_u *name; int use_gettext; { if (lock & VAR_LOCKED) { EMSG2(_("E741: Value is locked: %s"), name == NULL ? (char_u *)_("Unknown") : use_gettext ? (char_u *)_(name) : name); return TRUE; } if (lock & VAR_FIXED) { EMSG2(_("E742: Cannot change value of %s"), name == NULL ? (char_u *)_("Unknown") : use_gettext ? (char_u *)_(name) : name); return TRUE; } return FALSE; } /* * Copy the values from typval_T "from" to typval_T "to". * When needed allocates string or increases reference count. * Does not make a copy of a list or dict but copies the reference! * It is OK for "from" and "to" to point to the same item. This is used to * make a copy later. */ void copy_tv(from, to) typval_T *from; typval_T *to; { to->v_type = from->v_type; to->v_lock = 0; switch (from->v_type) { case VAR_NUMBER: case VAR_SPECIAL: to->vval.v_number = from->vval.v_number; break; #ifdef FEAT_FLOAT case VAR_FLOAT: to->vval.v_float = from->vval.v_float; break; #endif case VAR_STRING: case VAR_FUNC: if (from->vval.v_string == NULL) to->vval.v_string = NULL; else { to->vval.v_string = vim_strsave(from->vval.v_string); if (from->v_type == VAR_FUNC) func_ref(to->vval.v_string); } break; case VAR_LIST: if (from->vval.v_list == NULL) to->vval.v_list = NULL; else { to->vval.v_list = from->vval.v_list; ++to->vval.v_list->lv_refcount; } break; case VAR_DICT: if (from->vval.v_dict == NULL) to->vval.v_dict = NULL; else { to->vval.v_dict = from->vval.v_dict; ++to->vval.v_dict->dv_refcount; } break; default: EMSG2(_(e_intern2), "copy_tv()"); break; } } /* * Make a copy of an item. * Lists and Dictionaries are also copied. A deep copy if "deep" is set. * For deepcopy() "copyID" is zero for a full copy or the ID for when a * reference to an already copied list/dict can be used. * Returns FAIL or OK. */ static int item_copy(from, to, deep, copyID) typval_T *from; typval_T *to; int deep; int copyID; { static int recurse = 0; int ret = OK; if (recurse >= DICT_MAXNEST) { EMSG(_("E698: variable nested too deep for making a copy")); return FAIL; } ++recurse; switch (from->v_type) { case VAR_NUMBER: #ifdef FEAT_FLOAT case VAR_FLOAT: #endif case VAR_STRING: case VAR_FUNC: copy_tv(from, to); break; case VAR_LIST: to->v_type = VAR_LIST; to->v_lock = 0; if (from->vval.v_list == NULL) to->vval.v_list = NULL; else if (copyID != 0 && from->vval.v_list->lv_copyID == copyID) { /* use the copy made earlier */ to->vval.v_list = from->vval.v_list->lv_copylist; ++to->vval.v_list->lv_refcount; } else to->vval.v_list = list_copy(from->vval.v_list, deep, copyID); if (to->vval.v_list == NULL) ret = FAIL; break; case VAR_DICT: to->v_type = VAR_DICT; to->v_lock = 0; if (from->vval.v_dict == NULL) to->vval.v_dict = NULL; else if (copyID != 0 && from->vval.v_dict->dv_copyID == copyID) { /* use the copy made earlier */ to->vval.v_dict = from->vval.v_dict->dv_copydict; ++to->vval.v_dict->dv_refcount; } else to->vval.v_dict = dict_copy(from->vval.v_dict, deep, copyID); if (to->vval.v_dict == NULL) ret = FAIL; break; default: EMSG2(_(e_intern2), "item_copy()"); ret = FAIL; } --recurse; return ret; } /* * ":echo expr1 ..." print each argument separated with a space, add a * newline at the end. * ":echon expr1 ..." print each argument plain. */ void ex_echo(eap) exarg_T *eap; { char_u *arg = eap->arg; typval_T rettv; char_u *tofree; char_u *p; int needclr = TRUE; int atstart = TRUE; char_u numbuf[NUMBUFLEN]; if (eap->skip) ++emsg_skip; while (*arg != NUL && *arg != '|' && *arg != '\n' && !got_int) { /* If eval1() causes an error message the text from the command may * still need to be cleared. E.g., "echo 22,44". */ need_clr_eos = needclr; p = arg; if (eval1(&arg, &rettv, !eap->skip) == FAIL) { /* * Report the invalid expression unless the expression evaluation * has been cancelled due to an aborting error, an interrupt, or an * exception. */ if (!aborting()) EMSG2(_(e_invexpr2), p); need_clr_eos = FALSE; break; } need_clr_eos = FALSE; if (!eap->skip) { if (atstart) { atstart = FALSE; /* Call msg_start() after eval1(), evaluating the expression * may cause a message to appear. */ if (eap->cmdidx == CMD_echo) { /* Mark the saved text as finishing the line, so that what * follows is displayed on a new line when scrolling back * at the more prompt. */ msg_sb_eol(); msg_start(); } } else if (eap->cmdidx == CMD_echo) msg_puts_attr((char_u *)" ", echo_attr); p = echo_string(&rettv, &tofree, numbuf, get_copyID()); if (p != NULL) for ( ; *p != NUL && !got_int; ++p) { if (*p == '\n' || *p == '\r' || *p == TAB) { if (*p != TAB && needclr) { /* remove any text still there from the command */ msg_clr_eos(); needclr = FALSE; } msg_putchar_attr(*p, echo_attr); } else { #ifdef FEAT_MBYTE if (has_mbyte) { int i = (*mb_ptr2len)(p); (void)msg_outtrans_len_attr(p, i, echo_attr); p += i - 1; } else #endif (void)msg_outtrans_len_attr(p, 1, echo_attr); } } vim_free(tofree); } clear_tv(&rettv); arg = skipwhite(arg); } eap->nextcmd = check_nextcmd(arg); if (eap->skip) --emsg_skip; else { /* remove text that may still be there from the command */ if (needclr) msg_clr_eos(); if (eap->cmdidx == CMD_echo) msg_end(); } } /* * ":echohl {name}". */ void ex_echohl(eap) exarg_T *eap; { int id; id = syn_name2id(eap->arg); if (id == 0) echo_attr = 0; else echo_attr = syn_id2attr(id); } /* * ":execute expr1 ..." execute the result of an expression. * ":echomsg expr1 ..." Print a message * ":echoerr expr1 ..." Print an error * Each gets spaces around each argument and a newline at the end for * echo commands */ void ex_execute(eap) exarg_T *eap; { char_u *arg = eap->arg; typval_T rettv; int ret = OK; char_u *p; garray_T ga; int len; int save_did_emsg; ga_init2(&ga, 1, 80); if (eap->skip) ++emsg_skip; while (*arg != NUL && *arg != '|' && *arg != '\n') { p = arg; if (eval1(&arg, &rettv, !eap->skip) == FAIL) { /* * Report the invalid expression unless the expression evaluation * has been cancelled due to an aborting error, an interrupt, or an * exception. */ if (!aborting()) EMSG2(_(e_invexpr2), p); ret = FAIL; break; } if (!eap->skip) { p = get_tv_string(&rettv); len = (int)STRLEN(p); if (ga_grow(&ga, len + 2) == FAIL) { clear_tv(&rettv); ret = FAIL; break; } if (ga.ga_len) ((char_u *)(ga.ga_data))[ga.ga_len++] = ' '; STRCPY((char_u *)(ga.ga_data) + ga.ga_len, p); ga.ga_len += len; } clear_tv(&rettv); arg = skipwhite(arg); } if (ret != FAIL && ga.ga_data != NULL) { if (eap->cmdidx == CMD_echomsg) { MSG_ATTR(ga.ga_data, echo_attr); out_flush(); } else if (eap->cmdidx == CMD_echoerr) { /* We don't want to abort following commands, restore did_emsg. */ save_did_emsg = did_emsg; EMSG((char_u *)ga.ga_data); if (!force_abort) did_emsg = save_did_emsg; } else if (eap->cmdidx == CMD_execute) do_cmdline((char_u *)ga.ga_data, eap->getline, eap->cookie, DOCMD_NOWAIT|DOCMD_VERBOSE); } ga_clear(&ga); if (eap->skip) --emsg_skip; eap->nextcmd = check_nextcmd(arg); } /* * Skip over the name of an option: "&option", "&g:option" or "&l:option". * "arg" points to the "&" or '+' when called, to "option" when returning. * Returns NULL when no option name found. Otherwise pointer to the char * after the option name. */ static char_u * find_option_end(arg, opt_flags) char_u **arg; int *opt_flags; { char_u *p = *arg; ++p; if (*p == 'g' && p[1] == ':') { *opt_flags = OPT_GLOBAL; p += 2; } else if (*p == 'l' && p[1] == ':') { *opt_flags = OPT_LOCAL; p += 2; } else *opt_flags = 0; if (!ASCII_ISALPHA(*p)) return NULL; *arg = p; if (p[0] == 't' && p[1] == '_' && p[2] != NUL && p[3] != NUL) p += 4; /* termcap option */ else while (ASCII_ISALPHA(*p)) ++p; return p; } /* * ":function" */ void ex_function(eap) exarg_T *eap; { char_u *theline; int i; int j; int c; int saved_did_emsg; int saved_wait_return = need_wait_return; char_u *name = NULL; char_u *p; char_u *arg; char_u *line_arg = NULL; garray_T newargs; garray_T newlines; int varargs = FALSE; int mustend = FALSE; int flags = 0; ufunc_T *fp; int indent; int nesting; char_u *skip_until = NULL; dictitem_T *v; funcdict_T fudi; static int func_nr = 0; /* number for nameless function */ int paren; hashtab_T *ht; int todo; hashitem_T *hi; int sourcing_lnum_off; /* * ":function" without argument: list functions. */ if (ends_excmd(*eap->arg)) { if (!eap->skip) { todo = (int)func_hashtab.ht_used; for (hi = func_hashtab.ht_array; todo > 0 && !got_int; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; fp = HI2UF(hi); if (!isdigit(*fp->uf_name)) list_func_head(fp, FALSE); } } } eap->nextcmd = check_nextcmd(eap->arg); return; } /* * ":function /pat": list functions matching pattern. */ if (*eap->arg == '/') { p = skip_regexp(eap->arg + 1, '/', TRUE, NULL); if (!eap->skip) { regmatch_T regmatch; c = *p; *p = NUL; regmatch.regprog = vim_regcomp(eap->arg + 1, RE_MAGIC); *p = c; if (regmatch.regprog != NULL) { regmatch.rm_ic = p_ic; todo = (int)func_hashtab.ht_used; for (hi = func_hashtab.ht_array; todo > 0 && !got_int; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; fp = HI2UF(hi); if (!isdigit(*fp->uf_name) && vim_regexec(®match, fp->uf_name, 0)) list_func_head(fp, FALSE); } } vim_regfree(regmatch.regprog); } } if (*p == '/') ++p; eap->nextcmd = check_nextcmd(p); return; } /* * Get the function name. There are these situations: * func normal function name * "name" == func, "fudi.fd_dict" == NULL * dict.func new dictionary entry * "name" == NULL, "fudi.fd_dict" set, * "fudi.fd_di" == NULL, "fudi.fd_newkey" == func * dict.func existing dict entry with a Funcref * "name" == func, "fudi.fd_dict" set, * "fudi.fd_di" set, "fudi.fd_newkey" == NULL * dict.func existing dict entry that's not a Funcref * "name" == NULL, "fudi.fd_dict" set, * "fudi.fd_di" set, "fudi.fd_newkey" == NULL * s:func script-local function name * g:func global function name, same as "func" */ p = eap->arg; name = trans_function_name(&p, eap->skip, 0, &fudi); paren = (vim_strchr(p, '(') != NULL); if (name == NULL && (fudi.fd_dict == NULL || !paren) && !eap->skip) { /* * Return on an invalid expression in braces, unless the expression * evaluation has been cancelled due to an aborting error, an * interrupt, or an exception. */ if (!aborting()) { if (!eap->skip && fudi.fd_newkey != NULL) EMSG2(_(e_dictkey), fudi.fd_newkey); vim_free(fudi.fd_newkey); return; } else eap->skip = TRUE; } /* An error in a function call during evaluation of an expression in magic * braces should not cause the function not to be defined. */ saved_did_emsg = did_emsg; did_emsg = FALSE; /* * ":function func" with only function name: list function. */ if (!paren) { if (!ends_excmd(*skipwhite(p))) { EMSG(_(e_trailing)); goto ret_free; } eap->nextcmd = check_nextcmd(p); if (eap->nextcmd != NULL) *p = NUL; if (!eap->skip && !got_int) { fp = find_func(name); if (fp != NULL) { list_func_head(fp, TRUE); for (j = 0; j < fp->uf_lines.ga_len && !got_int; ++j) { if (FUNCLINE(fp, j) == NULL) continue; msg_putchar('\n'); msg_outnum((long)(j + 1)); if (j < 9) msg_putchar(' '); if (j < 99) msg_putchar(' '); msg_prt_line(FUNCLINE(fp, j), FALSE); out_flush(); /* show a line at a time */ ui_breakcheck(); } if (!got_int) { msg_putchar('\n'); msg_puts((char_u *)" endfunction"); } } else emsg_funcname(N_("E123: Undefined function: %s"), name); } goto ret_free; } /* * ":function name(arg1, arg2)" Define function. */ p = skipwhite(p); if (*p != '(') { if (!eap->skip) { EMSG2(_("E124: Missing '(': %s"), eap->arg); goto ret_free; } /* attempt to continue by skipping some text */ if (vim_strchr(p, '(') != NULL) p = vim_strchr(p, '('); } p = skipwhite(p + 1); ga_init2(&newargs, (int)sizeof(char_u *), 3); ga_init2(&newlines, (int)sizeof(char_u *), 3); if (!eap->skip) { /* Check the name of the function. Unless it's a dictionary function * (that we are overwriting). */ if (name != NULL) arg = name; else arg = fudi.fd_newkey; if (arg != NULL && (fudi.fd_di == NULL || fudi.fd_di->di_tv.v_type != VAR_FUNC)) { if (*arg == K_SPECIAL) j = 3; else j = 0; while (arg[j] != NUL && (j == 0 ? eval_isnamec1(arg[j]) : eval_isnamec(arg[j]))) ++j; if (arg[j] != NUL) emsg_funcname((char *)e_invarg2, arg); } /* Disallow using the g: dict. */ if (fudi.fd_dict != NULL && fudi.fd_dict->dv_scope == VAR_DEF_SCOPE) EMSG(_("E862: Cannot use g: here")); } /* * Isolate the arguments: "arg1, arg2, ...)" */ while (*p != ')') { if (p[0] == '.' && p[1] == '.' && p[2] == '.') { varargs = TRUE; p += 3; mustend = TRUE; } else { arg = p; while (ASCII_ISALNUM(*p) || *p == '_') ++p; if (arg == p || isdigit(*arg) || (p - arg == 9 && STRNCMP(arg, "firstline", 9) == 0) || (p - arg == 8 && STRNCMP(arg, "lastline", 8) == 0)) { if (!eap->skip) EMSG2(_("E125: Illegal argument: %s"), arg); break; } if (ga_grow(&newargs, 1) == FAIL) goto erret; c = *p; *p = NUL; arg = vim_strsave(arg); if (arg == NULL) goto erret; /* Check for duplicate argument name. */ for (i = 0; i < newargs.ga_len; ++i) if (STRCMP(((char_u **)(newargs.ga_data))[i], arg) == 0) { EMSG2(_("E853: Duplicate argument name: %s"), arg); vim_free(arg); goto erret; } ((char_u **)(newargs.ga_data))[newargs.ga_len] = arg; *p = c; newargs.ga_len++; if (*p == ',') ++p; else mustend = TRUE; } p = skipwhite(p); if (mustend && *p != ')') { if (!eap->skip) EMSG2(_(e_invarg2), eap->arg); break; } } if (*p != ')') goto erret; ++p; /* skip the ')' */ /* find extra arguments "range", "dict" and "abort" */ for (;;) { p = skipwhite(p); if (STRNCMP(p, "range", 5) == 0) { flags |= FC_RANGE; p += 5; } else if (STRNCMP(p, "dict", 4) == 0) { flags |= FC_DICT; p += 4; } else if (STRNCMP(p, "abort", 5) == 0) { flags |= FC_ABORT; p += 5; } else break; } /* When there is a line break use what follows for the function body. * Makes 'exe "func Test()\n...\nendfunc"' work. */ if (*p == '\n') line_arg = p + 1; else if (*p != NUL && *p != '"' && !eap->skip && !did_emsg) EMSG(_(e_trailing)); /* * Read the body of the function, until ":endfunction" is found. */ if (KeyTyped) { /* Check if the function already exists, don't let the user type the * whole function before telling him it doesn't work! For a script we * need to skip the body to be able to find what follows. */ if (!eap->skip && !eap->forceit) { if (fudi.fd_dict != NULL && fudi.fd_newkey == NULL) EMSG(_(e_funcdict)); else if (name != NULL && find_func(name) != NULL) emsg_funcname(e_funcexts, name); } if (!eap->skip && did_emsg) goto erret; msg_putchar('\n'); /* don't overwrite the function name */ cmdline_row = msg_row; } indent = 2; nesting = 0; for (;;) { if (KeyTyped) { msg_scroll = TRUE; saved_wait_return = FALSE; } need_wait_return = FALSE; sourcing_lnum_off = sourcing_lnum; if (line_arg != NULL) { /* Use eap->arg, split up in parts by line breaks. */ theline = line_arg; p = vim_strchr(theline, '\n'); if (p == NULL) line_arg += STRLEN(line_arg); else { *p = NUL; line_arg = p + 1; } } else if (eap->getline == NULL) theline = getcmdline(':', 0L, indent); else theline = eap->getline(':', eap->cookie, indent); if (KeyTyped) lines_left = Rows - 1; if (theline == NULL) { EMSG(_("E126: Missing :endfunction")); goto erret; } /* Detect line continuation: sourcing_lnum increased more than one. */ if (sourcing_lnum > sourcing_lnum_off + 1) sourcing_lnum_off = sourcing_lnum - sourcing_lnum_off - 1; else sourcing_lnum_off = 0; if (skip_until != NULL) { /* between ":append" and "." and between ":python <<EOF" and "EOF" * don't check for ":endfunc". */ if (STRCMP(theline, skip_until) == 0) { vim_free(skip_until); skip_until = NULL; } } else { /* skip ':' and blanks*/ for (p = theline; vim_iswhite(*p) || *p == ':'; ++p) ; /* Check for "endfunction". */ if (checkforcmd(&p, "endfunction", 4) && nesting-- == 0) { if (line_arg == NULL) vim_free(theline); break; } /* Increase indent inside "if", "while", "for" and "try", decrease * at "end". */ if (indent > 2 && STRNCMP(p, "end", 3) == 0) indent -= 2; else if (STRNCMP(p, "if", 2) == 0 || STRNCMP(p, "wh", 2) == 0 || STRNCMP(p, "for", 3) == 0 || STRNCMP(p, "try", 3) == 0) indent += 2; /* Check for defining a function inside this function. */ if (checkforcmd(&p, "function", 2)) { if (*p == '!') p = skipwhite(p + 1); p += eval_fname_script(p); vim_free(trans_function_name(&p, TRUE, 0, NULL)); if (*skipwhite(p) == '(') { ++nesting; indent += 2; } } /* Check for ":append" or ":insert". */ p = skip_range(p, NULL); if ((p[0] == 'a' && (!ASCII_ISALPHA(p[1]) || p[1] == 'p')) || (p[0] == 'i' && (!ASCII_ISALPHA(p[1]) || (p[1] == 'n' && (!ASCII_ISALPHA(p[2]) || (p[2] == 's')))))) skip_until = vim_strsave((char_u *)"."); /* Check for ":python <<EOF", ":tcl <<EOF", etc. */ arg = skipwhite(skiptowhite(p)); if (arg[0] == '<' && arg[1] =='<' && ((p[0] == 'p' && p[1] == 'y' && (!ASCII_ISALPHA(p[2]) || p[2] == 't')) || (p[0] == 'p' && p[1] == 'e' && (!ASCII_ISALPHA(p[2]) || p[2] == 'r')) || (p[0] == 't' && p[1] == 'c' && (!ASCII_ISALPHA(p[2]) || p[2] == 'l')) || (p[0] == 'l' && p[1] == 'u' && p[2] == 'a' && !ASCII_ISALPHA(p[3])) || (p[0] == 'r' && p[1] == 'u' && p[2] == 'b' && (!ASCII_ISALPHA(p[3]) || p[3] == 'y')) || (p[0] == 'm' && p[1] == 'z' && (!ASCII_ISALPHA(p[2]) || p[2] == 's')) )) { /* ":python <<" continues until a dot, like ":append" */ p = skipwhite(arg + 2); if (*p == NUL) skip_until = vim_strsave((char_u *)"."); else skip_until = vim_strsave(p); } } /* Add the line to the function. */ if (ga_grow(&newlines, 1 + sourcing_lnum_off) == FAIL) { if (line_arg == NULL) vim_free(theline); goto erret; } /* Copy the line to newly allocated memory. get_one_sourceline() * allocates 250 bytes per line, this saves 80% on average. The cost * is an extra alloc/free. */ p = vim_strsave(theline); if (p != NULL) { if (line_arg == NULL) vim_free(theline); theline = p; } ((char_u **)(newlines.ga_data))[newlines.ga_len++] = theline; /* Add NULL lines for continuation lines, so that the line count is * equal to the index in the growarray. */ while (sourcing_lnum_off-- > 0) ((char_u **)(newlines.ga_data))[newlines.ga_len++] = NULL; /* Check for end of eap->arg. */ if (line_arg != NULL && *line_arg == NUL) line_arg = NULL; } /* Don't define the function when skipping commands or when an error was * detected. */ if (eap->skip || did_emsg) goto erret; /* * If there are no errors, add the function */ if (fudi.fd_dict == NULL) { v = find_var(name, &ht, FALSE); if (v != NULL && v->di_tv.v_type == VAR_FUNC) { emsg_funcname(N_("E707: Function name conflicts with variable: %s"), name); goto erret; } fp = find_func(name); if (fp != NULL) { if (!eap->forceit) { emsg_funcname(e_funcexts, name); goto erret; } if (fp->uf_calls > 0) { emsg_funcname(N_("E127: Cannot redefine function %s: It is in use"), name); goto erret; } /* redefine existing function */ ga_clear_strings(&(fp->uf_args)); ga_clear_strings(&(fp->uf_lines)); vim_free(name); name = NULL; } } else { char numbuf[20]; fp = NULL; if (fudi.fd_newkey == NULL && !eap->forceit) { EMSG(_(e_funcdict)); goto erret; } if (fudi.fd_di == NULL) { /* Can't add a function to a locked dictionary */ if (tv_check_lock(fudi.fd_dict->dv_lock, eap->arg, FALSE)) goto erret; } /* Can't change an existing function if it is locked */ else if (tv_check_lock(fudi.fd_di->di_tv.v_lock, eap->arg, FALSE)) goto erret; /* Give the function a sequential number. Can only be used with a * Funcref! */ vim_free(name); sprintf(numbuf, "%d", ++func_nr); name = vim_strsave((char_u *)numbuf); if (name == NULL) goto erret; } if (fp == NULL) { if (fudi.fd_dict == NULL && vim_strchr(name, AUTOLOAD_CHAR) != NULL) { int slen, plen; char_u *scriptname; /* Check that the autoload name matches the script name. */ j = FAIL; if (sourcing_name != NULL) { scriptname = autoload_name(name); if (scriptname != NULL) { p = vim_strchr(scriptname, '/'); plen = (int)STRLEN(p); slen = (int)STRLEN(sourcing_name); if (slen > plen && fnamecmp(p, sourcing_name + slen - plen) == 0) j = OK; vim_free(scriptname); } } if (j == FAIL) { EMSG2(_("E746: Function name does not match script file name: %s"), name); goto erret; } } fp = (ufunc_T *)alloc((unsigned)(sizeof(ufunc_T) + STRLEN(name))); if (fp == NULL) goto erret; if (fudi.fd_dict != NULL) { if (fudi.fd_di == NULL) { /* add new dict entry */ fudi.fd_di = dictitem_alloc(fudi.fd_newkey); if (fudi.fd_di == NULL) { vim_free(fp); goto erret; } if (dict_add(fudi.fd_dict, fudi.fd_di) == FAIL) { vim_free(fudi.fd_di); vim_free(fp); goto erret; } } else /* overwrite existing dict entry */ clear_tv(&fudi.fd_di->di_tv); fudi.fd_di->di_tv.v_type = VAR_FUNC; fudi.fd_di->di_tv.v_lock = 0; fudi.fd_di->di_tv.vval.v_string = vim_strsave(name); fp->uf_refcount = 1; /* behave like "dict" was used */ flags |= FC_DICT; } /* insert the new function in the function list */ STRCPY(fp->uf_name, name); if (hash_add(&func_hashtab, UF2HIKEY(fp)) == FAIL) { vim_free(fp); goto erret; } } fp->uf_args = newargs; fp->uf_lines = newlines; #ifdef FEAT_PROFILE fp->uf_tml_count = NULL; fp->uf_tml_total = NULL; fp->uf_tml_self = NULL; fp->uf_profiling = FALSE; if (prof_def_func()) func_do_profile(fp); #endif fp->uf_varargs = varargs; fp->uf_flags = flags; fp->uf_calls = 0; fp->uf_script_ID = current_SID; goto ret_free; erret: ga_clear_strings(&newargs); ga_clear_strings(&newlines); ret_free: vim_free(skip_until); vim_free(fudi.fd_newkey); vim_free(name); did_emsg |= saved_did_emsg; need_wait_return |= saved_wait_return; } /* * Get a function name, translating "<SID>" and "<SNR>". * Also handles a Funcref in a List or Dictionary. * Returns the function name in allocated memory, or NULL for failure. * flags: * TFN_INT: internal function name OK * TFN_QUIET: be quiet * TFN_NO_AUTOLOAD: do not use script autoloading * Advances "pp" to just after the function name (if no error). */ static char_u * trans_function_name(pp, skip, flags, fdp) char_u **pp; int skip; /* only find the end, don't evaluate */ int flags; funcdict_T *fdp; /* return: info about dictionary used */ { char_u *name = NULL; char_u *start; char_u *end; int lead; char_u sid_buf[20]; int len; lval_T lv; if (fdp != NULL) vim_memset(fdp, 0, sizeof(funcdict_T)); start = *pp; /* Check for hard coded <SNR>: already translated function ID (from a user * command). */ if ((*pp)[0] == K_SPECIAL && (*pp)[1] == KS_EXTRA && (*pp)[2] == (int)KE_SNR) { *pp += 3; len = get_id_len(pp) + 3; return vim_strnsave(start, len); } /* A name starting with "<SID>" or "<SNR>" is local to a script. But * don't skip over "s:", get_lval() needs it for "s:dict.func". */ lead = eval_fname_script(start); if (lead > 2) start += lead; /* Note that TFN_ flags use the same values as GLV_ flags. */ end = get_lval(start, NULL, &lv, FALSE, skip, flags, lead > 2 ? 0 : FNE_CHECK_START); if (end == start) { if (!skip) EMSG(_("E129: Function name required")); goto theend; } if (end == NULL || (lv.ll_tv != NULL && (lead > 2 || lv.ll_range))) { /* * Report an invalid expression in braces, unless the expression * evaluation has been cancelled due to an aborting error, an * interrupt, or an exception. */ if (!aborting()) { if (end != NULL) EMSG2(_(e_invarg2), start); } else *pp = find_name_end(start, NULL, NULL, FNE_INCL_BR); goto theend; } if (lv.ll_tv != NULL) { if (fdp != NULL) { fdp->fd_dict = lv.ll_dict; fdp->fd_newkey = lv.ll_newkey; lv.ll_newkey = NULL; fdp->fd_di = lv.ll_di; } if (lv.ll_tv->v_type == VAR_FUNC && lv.ll_tv->vval.v_string != NULL) { name = vim_strsave(lv.ll_tv->vval.v_string); *pp = end; } else { if (!skip && !(flags & TFN_QUIET) && (fdp == NULL || lv.ll_dict == NULL || fdp->fd_newkey == NULL)) EMSG(_(e_funcref)); else *pp = end; name = NULL; } goto theend; } if (lv.ll_name == NULL) { /* Error found, but continue after the function name. */ *pp = end; goto theend; } /* Check if the name is a Funcref. If so, use the value. */ if (lv.ll_exp_name != NULL) { len = (int)STRLEN(lv.ll_exp_name); name = deref_func_name(lv.ll_exp_name, &len, flags & TFN_NO_AUTOLOAD); if (name == lv.ll_exp_name) name = NULL; } else { len = (int)(end - *pp); name = deref_func_name(*pp, &len, flags & TFN_NO_AUTOLOAD); if (name == *pp) name = NULL; } if (name != NULL) { name = vim_strsave(name); *pp = end; if (STRNCMP(name, "<SNR>", 5) == 0) { /* Change "<SNR>" to the byte sequence. */ name[0] = K_SPECIAL; name[1] = KS_EXTRA; name[2] = (int)KE_SNR; mch_memmove(name + 3, name + 5, STRLEN(name + 5) + 1); } goto theend; } if (lv.ll_exp_name != NULL) { len = (int)STRLEN(lv.ll_exp_name); if (lead <= 2 && lv.ll_name == lv.ll_exp_name && STRNCMP(lv.ll_name, "s:", 2) == 0) { /* When there was "s:" already or the name expanded to get a * leading "s:" then remove it. */ lv.ll_name += 2; len -= 2; lead = 2; } } else { /* skip over "s:" and "g:" */ if (lead == 2 || (lv.ll_name[0] == 'g' && lv.ll_name[1] == ':')) lv.ll_name += 2; len = (int)(end - lv.ll_name); } /* * Copy the function name to allocated memory. * Accept <SID>name() inside a script, translate into <SNR>123_name(). * Accept <SNR>123_name() outside a script. */ if (skip) lead = 0; /* do nothing */ else if (lead > 0) { lead = 3; if ((lv.ll_exp_name != NULL && eval_fname_sid(lv.ll_exp_name)) || eval_fname_sid(*pp)) { /* It's "s:" or "<SID>" */ if (current_SID <= 0) { EMSG(_(e_usingsid)); goto theend; } sprintf((char *)sid_buf, "%ld_", (long)current_SID); lead += (int)STRLEN(sid_buf); } } else if (!(flags & TFN_INT) && builtin_function(lv.ll_name, len)) { EMSG2(_("E128: Function name must start with a capital or \"s:\": %s"), start); goto theend; } if (!skip && !(flags & TFN_QUIET)) { char_u *cp = vim_strchr(lv.ll_name, ':'); if (cp != NULL && cp < end) { EMSG2(_("E884: Function name cannot contain a colon: %s"), start); goto theend; } } name = alloc((unsigned)(len + lead + 1)); if (name != NULL) { if (lead > 0) { name[0] = K_SPECIAL; name[1] = KS_EXTRA; name[2] = (int)KE_SNR; if (lead > 3) /* If it's "<SID>" */ STRCPY(name + 3, sid_buf); } mch_memmove(name + lead, lv.ll_name, (size_t)len); name[lead + len] = NUL; } *pp = end; theend: clear_lval(&lv); return name; } /* * Return 5 if "p" starts with "<SID>" or "<SNR>" (ignoring case). * Return 2 if "p" starts with "s:". * Return 0 otherwise. */ static int eval_fname_script(p) char_u *p; { /* Use MB_STRICMP() because in Turkish comparing the "I" may not work with * the standard library function. */ if (p[0] == '<' && (MB_STRNICMP(p + 1, "SID>", 4) == 0 || MB_STRNICMP(p + 1, "SNR>", 4) == 0)) return 5; if (p[0] == 's' && p[1] == ':') return 2; return 0; } /* * Return TRUE if "p" starts with "<SID>" or "s:". * Only works if eval_fname_script() returned non-zero for "p"! */ static int eval_fname_sid(p) char_u *p; { return (*p == 's' || TOUPPER_ASC(p[2]) == 'I'); } /* * List the head of the function: "name(arg1, arg2)". */ static void list_func_head(fp, indent) ufunc_T *fp; int indent; { int j; msg_start(); if (indent) MSG_PUTS(" "); MSG_PUTS("function "); if (fp->uf_name[0] == K_SPECIAL) { MSG_PUTS_ATTR("<SNR>", hl_attr(HLF_8)); msg_puts(fp->uf_name + 3); } else msg_puts(fp->uf_name); msg_putchar('('); for (j = 0; j < fp->uf_args.ga_len; ++j) { if (j) MSG_PUTS(", "); msg_puts(FUNCARG(fp, j)); } if (fp->uf_varargs) { if (j) MSG_PUTS(", "); MSG_PUTS("..."); } msg_putchar(')'); if (fp->uf_flags & FC_ABORT) MSG_PUTS(" abort"); if (fp->uf_flags & FC_RANGE) MSG_PUTS(" range"); if (fp->uf_flags & FC_DICT) MSG_PUTS(" dict"); msg_clr_eos(); if (p_verbose > 0) last_set_msg(fp->uf_script_ID); } /* * Find a function by name, return pointer to it in ufuncs. * Return NULL for unknown function. */ static ufunc_T * find_func(name) char_u *name; { hashitem_T *hi; hi = hash_find(&func_hashtab, name); if (!HASHITEM_EMPTY(hi)) return HI2UF(hi); return NULL; } #if defined(EXITFREE) || defined(PROTO) void free_all_functions() { hashitem_T *hi; /* Need to start all over every time, because func_free() may change the * hash table. */ while (func_hashtab.ht_used > 0) for (hi = func_hashtab.ht_array; ; ++hi) if (!HASHITEM_EMPTY(hi)) { func_free(HI2UF(hi)); break; } } #endif int translated_function_exists(name) char_u *name; { if (builtin_function(name, -1)) return find_internal_func(name) >= 0; return find_func(name) != NULL; } /* * Return TRUE if a function "name" exists. */ static int function_exists(name) char_u *name; { char_u *nm = name; char_u *p; int n = FALSE; p = trans_function_name(&nm, FALSE, TFN_INT|TFN_QUIET|TFN_NO_AUTOLOAD, NULL); nm = skipwhite(nm); /* Only accept "funcname", "funcname ", "funcname (..." and * "funcname(...", not "funcname!...". */ if (p != NULL && (*nm == NUL || *nm == '(')) n = translated_function_exists(p); vim_free(p); return n; } char_u * get_expanded_name(name, check) char_u *name; int check; { char_u *nm = name; char_u *p; p = trans_function_name(&nm, FALSE, TFN_INT|TFN_QUIET, NULL); if (p != NULL && *nm == NUL) if (!check || translated_function_exists(p)) return p; vim_free(p); return NULL; } /* * Return TRUE if "name" looks like a builtin function name: starts with a * lower case letter and doesn't contain AUTOLOAD_CHAR. * "len" is the length of "name", or -1 for NUL terminated. */ static int builtin_function(name, len) char_u *name; int len; { char_u *p; if (!ASCII_ISLOWER(name[0])) return FALSE; p = vim_strchr(name, AUTOLOAD_CHAR); return p == NULL || (len > 0 && p > name + len); } #if defined(FEAT_PROFILE) || defined(PROTO) /* * Start profiling function "fp". */ static void func_do_profile(fp) ufunc_T *fp; { int len = fp->uf_lines.ga_len; if (len == 0) len = 1; /* avoid getting error for allocating zero bytes */ fp->uf_tm_count = 0; profile_zero(&fp->uf_tm_self); profile_zero(&fp->uf_tm_total); if (fp->uf_tml_count == NULL) fp->uf_tml_count = (int *)alloc_clear((unsigned) (sizeof(int) * len)); if (fp->uf_tml_total == NULL) fp->uf_tml_total = (proftime_T *)alloc_clear((unsigned) (sizeof(proftime_T) * len)); if (fp->uf_tml_self == NULL) fp->uf_tml_self = (proftime_T *)alloc_clear((unsigned) (sizeof(proftime_T) * len)); fp->uf_tml_idx = -1; if (fp->uf_tml_count == NULL || fp->uf_tml_total == NULL || fp->uf_tml_self == NULL) return; /* out of memory */ fp->uf_profiling = TRUE; } /* * Dump the profiling results for all functions in file "fd". */ void func_dump_profile(fd) FILE *fd; { hashitem_T *hi; int todo; ufunc_T *fp; int i; ufunc_T **sorttab; int st_len = 0; todo = (int)func_hashtab.ht_used; if (todo == 0) return; /* nothing to dump */ sorttab = (ufunc_T **)alloc((unsigned)(sizeof(ufunc_T *) * todo)); for (hi = func_hashtab.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; fp = HI2UF(hi); if (fp->uf_profiling) { if (sorttab != NULL) sorttab[st_len++] = fp; if (fp->uf_name[0] == K_SPECIAL) fprintf(fd, "FUNCTION <SNR>%s()\n", fp->uf_name + 3); else fprintf(fd, "FUNCTION %s()\n", fp->uf_name); if (fp->uf_tm_count == 1) fprintf(fd, "Called 1 time\n"); else fprintf(fd, "Called %d times\n", fp->uf_tm_count); fprintf(fd, "Total time: %s\n", profile_msg(&fp->uf_tm_total)); fprintf(fd, " Self time: %s\n", profile_msg(&fp->uf_tm_self)); fprintf(fd, "\n"); fprintf(fd, "count total (s) self (s)\n"); for (i = 0; i < fp->uf_lines.ga_len; ++i) { if (FUNCLINE(fp, i) == NULL) continue; prof_func_line(fd, fp->uf_tml_count[i], &fp->uf_tml_total[i], &fp->uf_tml_self[i], TRUE); fprintf(fd, "%s\n", FUNCLINE(fp, i)); } fprintf(fd, "\n"); } } } if (sorttab != NULL && st_len > 0) { qsort((void *)sorttab, (size_t)st_len, sizeof(ufunc_T *), prof_total_cmp); prof_sort_list(fd, sorttab, st_len, "TOTAL", FALSE); qsort((void *)sorttab, (size_t)st_len, sizeof(ufunc_T *), prof_self_cmp); prof_sort_list(fd, sorttab, st_len, "SELF", TRUE); } vim_free(sorttab); } static void prof_sort_list(fd, sorttab, st_len, title, prefer_self) FILE *fd; ufunc_T **sorttab; int st_len; char *title; int prefer_self; /* when equal print only self time */ { int i; ufunc_T *fp; fprintf(fd, "FUNCTIONS SORTED ON %s TIME\n", title); fprintf(fd, "count total (s) self (s) function\n"); for (i = 0; i < 20 && i < st_len; ++i) { fp = sorttab[i]; prof_func_line(fd, fp->uf_tm_count, &fp->uf_tm_total, &fp->uf_tm_self, prefer_self); if (fp->uf_name[0] == K_SPECIAL) fprintf(fd, " <SNR>%s()\n", fp->uf_name + 3); else fprintf(fd, " %s()\n", fp->uf_name); } fprintf(fd, "\n"); } /* * Print the count and times for one function or function line. */ static void prof_func_line(fd, count, total, self, prefer_self) FILE *fd; int count; proftime_T *total; proftime_T *self; int prefer_self; /* when equal print only self time */ { if (count > 0) { fprintf(fd, "%5d ", count); if (prefer_self && profile_equal(total, self)) fprintf(fd, " "); else fprintf(fd, "%s ", profile_msg(total)); if (!prefer_self && profile_equal(total, self)) fprintf(fd, " "); else fprintf(fd, "%s ", profile_msg(self)); } else fprintf(fd, " "); } /* * Compare function for total time sorting. */ static int #ifdef __BORLANDC__ _RTLENTRYF #endif prof_total_cmp(s1, s2) const void *s1; const void *s2; { ufunc_T *p1, *p2; p1 = *(ufunc_T **)s1; p2 = *(ufunc_T **)s2; return profile_cmp(&p1->uf_tm_total, &p2->uf_tm_total); } /* * Compare function for self time sorting. */ static int #ifdef __BORLANDC__ _RTLENTRYF #endif prof_self_cmp(s1, s2) const void *s1; const void *s2; { ufunc_T *p1, *p2; p1 = *(ufunc_T **)s1; p2 = *(ufunc_T **)s2; return profile_cmp(&p1->uf_tm_self, &p2->uf_tm_self); } #endif /* * If "name" has a package name try autoloading the script for it. * Return TRUE if a package was loaded. */ static int script_autoload(name, reload) char_u *name; int reload; /* load script again when already loaded */ { char_u *p; char_u *scriptname, *tofree; int ret = FALSE; int i; /* If there is no '#' after name[0] there is no package name. */ p = vim_strchr(name, AUTOLOAD_CHAR); if (p == NULL || p == name) return FALSE; tofree = scriptname = autoload_name(name); /* Find the name in the list of previously loaded package names. Skip * "autoload/", it's always the same. */ for (i = 0; i < ga_loaded.ga_len; ++i) if (STRCMP(((char_u **)ga_loaded.ga_data)[i] + 9, scriptname + 9) == 0) break; if (!reload && i < ga_loaded.ga_len) ret = FALSE; /* was loaded already */ else { /* Remember the name if it wasn't loaded already. */ if (i == ga_loaded.ga_len && ga_grow(&ga_loaded, 1) == OK) { ((char_u **)ga_loaded.ga_data)[ga_loaded.ga_len++] = scriptname; tofree = NULL; } /* Try loading the package from $VIMRUNTIME/autoload/<name>.vim */ if (source_runtime(scriptname, FALSE) == OK) ret = TRUE; } vim_free(tofree); return ret; } /* * Return the autoload script name for a function or variable name. * Returns NULL when out of memory. */ static char_u * autoload_name(name) char_u *name; { char_u *p; char_u *scriptname; /* Get the script file name: replace '#' with '/', append ".vim". */ scriptname = alloc((unsigned)(STRLEN(name) + 14)); if (scriptname == NULL) return FALSE; STRCPY(scriptname, "autoload/"); STRCAT(scriptname, name); *vim_strrchr(scriptname, AUTOLOAD_CHAR) = NUL; STRCAT(scriptname, ".vim"); while ((p = vim_strchr(scriptname, AUTOLOAD_CHAR)) != NULL) *p = '/'; return scriptname; } #if defined(FEAT_CMDL_COMPL) || defined(PROTO) /* * Function given to ExpandGeneric() to obtain the list of user defined * function names. */ char_u * get_user_func_name(xp, idx) expand_T *xp; int idx; { static long_u done; static hashitem_T *hi; ufunc_T *fp; if (idx == 0) { done = 0; hi = func_hashtab.ht_array; } if (done < func_hashtab.ht_used) { if (done++ > 0) ++hi; while (HASHITEM_EMPTY(hi)) ++hi; fp = HI2UF(hi); if (fp->uf_flags & FC_DICT) return (char_u *)""; /* don't show dict functions */ if (STRLEN(fp->uf_name) + 4 >= IOSIZE) return fp->uf_name; /* prevents overflow */ cat_func_name(IObuff, fp); if (xp->xp_context != EXPAND_USER_FUNC) { STRCAT(IObuff, "("); if (!fp->uf_varargs && fp->uf_args.ga_len == 0) STRCAT(IObuff, ")"); } return IObuff; } return NULL; } #endif /* FEAT_CMDL_COMPL */ /* * Copy the function name of "fp" to buffer "buf". * "buf" must be able to hold the function name plus three bytes. * Takes care of script-local function names. */ static void cat_func_name(buf, fp) char_u *buf; ufunc_T *fp; { if (fp->uf_name[0] == K_SPECIAL) { STRCPY(buf, "<SNR>"); STRCAT(buf, fp->uf_name + 3); } else STRCPY(buf, fp->uf_name); } /* * ":delfunction {name}" */ void ex_delfunction(eap) exarg_T *eap; { ufunc_T *fp = NULL; char_u *p; char_u *name; funcdict_T fudi; p = eap->arg; name = trans_function_name(&p, eap->skip, 0, &fudi); vim_free(fudi.fd_newkey); if (name == NULL) { if (fudi.fd_dict != NULL && !eap->skip) EMSG(_(e_funcref)); return; } if (!ends_excmd(*skipwhite(p))) { vim_free(name); EMSG(_(e_trailing)); return; } eap->nextcmd = check_nextcmd(p); if (eap->nextcmd != NULL) *p = NUL; if (!eap->skip) fp = find_func(name); vim_free(name); if (!eap->skip) { if (fp == NULL) { EMSG2(_(e_nofunc), eap->arg); return; } if (fp->uf_calls > 0) { EMSG2(_("E131: Cannot delete function %s: It is in use"), eap->arg); return; } if (fudi.fd_dict != NULL) { /* Delete the dict item that refers to the function, it will * invoke func_unref() and possibly delete the function. */ dictitem_remove(fudi.fd_dict, fudi.fd_di); } else func_free(fp); } } /* * Free a function and remove it from the list of functions. */ static void func_free(fp) ufunc_T *fp; { hashitem_T *hi; /* clear this function */ ga_clear_strings(&(fp->uf_args)); ga_clear_strings(&(fp->uf_lines)); #ifdef FEAT_PROFILE vim_free(fp->uf_tml_count); vim_free(fp->uf_tml_total); vim_free(fp->uf_tml_self); #endif /* remove the function from the function hashtable */ hi = hash_find(&func_hashtab, UF2HIKEY(fp)); if (HASHITEM_EMPTY(hi)) EMSG2(_(e_intern2), "func_free()"); else hash_remove(&func_hashtab, hi); vim_free(fp); } /* * Unreference a Function: decrement the reference count and free it when it * becomes zero. Only for numbered functions. */ void func_unref(name) char_u *name; { ufunc_T *fp; if (name != NULL && isdigit(*name)) { fp = find_func(name); if (fp == NULL) EMSG2(_(e_intern2), "func_unref()"); else if (--fp->uf_refcount <= 0) { /* Only delete it when it's not being used. Otherwise it's done * when "uf_calls" becomes zero. */ if (fp->uf_calls == 0) func_free(fp); } } } /* * Count a reference to a Function. */ void func_ref(name) char_u *name; { ufunc_T *fp; if (name != NULL && isdigit(*name)) { fp = find_func(name); if (fp == NULL) EMSG2(_(e_intern2), "func_ref()"); else ++fp->uf_refcount; } } /* * Call a user function. */ static void call_user_func(fp, argcount, argvars, rettv, firstline, lastline, selfdict) ufunc_T *fp; /* pointer to function */ int argcount; /* nr of args */ typval_T *argvars; /* arguments */ typval_T *rettv; /* return value */ linenr_T firstline; /* first line of range */ linenr_T lastline; /* last line of range */ dict_T *selfdict; /* Dictionary for "self" */ { char_u *save_sourcing_name; linenr_T save_sourcing_lnum; scid_T save_current_SID; funccall_T *fc; int save_did_emsg; static int depth = 0; dictitem_T *v; int fixvar_idx = 0; /* index in fixvar[] */ int i; int ai; char_u numbuf[NUMBUFLEN]; char_u *name; size_t len; #ifdef FEAT_PROFILE proftime_T wait_start; proftime_T call_start; #endif /* If depth of calling is getting too high, don't execute the function */ if (depth >= p_mfd) { EMSG(_("E132: Function call depth is higher than 'maxfuncdepth'")); rettv->v_type = VAR_NUMBER; rettv->vval.v_number = -1; return; } ++depth; line_breakcheck(); /* check for CTRL-C hit */ fc = (funccall_T *)alloc(sizeof(funccall_T)); fc->caller = current_funccal; current_funccal = fc; fc->func = fp; fc->rettv = rettv; rettv->vval.v_number = 0; fc->linenr = 0; fc->returned = FALSE; fc->level = ex_nesting_level; /* Check if this function has a breakpoint. */ fc->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name, (linenr_T)0); fc->dbg_tick = debug_tick; /* * Note about using fc->fixvar[]: This is an array of FIXVAR_CNT variables * with names up to VAR_SHORT_LEN long. This avoids having to alloc/free * each argument variable and saves a lot of time. */ /* * Init l: variables. */ init_var_dict(&fc->l_vars, &fc->l_vars_var, VAR_DEF_SCOPE); if (selfdict != NULL) { /* Set l:self to "selfdict". Use "name" to avoid a warning from * some compiler that checks the destination size. */ v = &fc->fixvar[fixvar_idx++].var; name = v->di_key; STRCPY(name, "self"); v->di_flags = DI_FLAGS_RO + DI_FLAGS_FIX; hash_add(&fc->l_vars.dv_hashtab, DI2HIKEY(v)); v->di_tv.v_type = VAR_DICT; v->di_tv.v_lock = 0; v->di_tv.vval.v_dict = selfdict; ++selfdict->dv_refcount; } /* * Init a: variables. * Set a:0 to "argcount". * Set a:000 to a list with room for the "..." arguments. */ init_var_dict(&fc->l_avars, &fc->l_avars_var, VAR_SCOPE); add_nr_var(&fc->l_avars, &fc->fixvar[fixvar_idx++].var, "0", (varnumber_T)(argcount - fp->uf_args.ga_len)); /* Use "name" to avoid a warning from some compiler that checks the * destination size. */ v = &fc->fixvar[fixvar_idx++].var; name = v->di_key; STRCPY(name, "000"); v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; hash_add(&fc->l_avars.dv_hashtab, DI2HIKEY(v)); v->di_tv.v_type = VAR_LIST; v->di_tv.v_lock = VAR_FIXED; v->di_tv.vval.v_list = &fc->l_varlist; vim_memset(&fc->l_varlist, 0, sizeof(list_T)); fc->l_varlist.lv_refcount = DO_NOT_FREE_CNT; fc->l_varlist.lv_lock = VAR_FIXED; /* * Set a:firstline to "firstline" and a:lastline to "lastline". * Set a:name to named arguments. * Set a:N to the "..." arguments. */ add_nr_var(&fc->l_avars, &fc->fixvar[fixvar_idx++].var, "firstline", (varnumber_T)firstline); add_nr_var(&fc->l_avars, &fc->fixvar[fixvar_idx++].var, "lastline", (varnumber_T)lastline); for (i = 0; i < argcount; ++i) { ai = i - fp->uf_args.ga_len; if (ai < 0) /* named argument a:name */ name = FUNCARG(fp, i); else { /* "..." argument a:1, a:2, etc. */ sprintf((char *)numbuf, "%d", ai + 1); name = numbuf; } if (fixvar_idx < FIXVAR_CNT && STRLEN(name) <= VAR_SHORT_LEN) { v = &fc->fixvar[fixvar_idx++].var; v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; } else { v = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T) + STRLEN(name))); if (v == NULL) break; v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX | DI_FLAGS_ALLOC; } STRCPY(v->di_key, name); hash_add(&fc->l_avars.dv_hashtab, DI2HIKEY(v)); /* Note: the values are copied directly to avoid alloc/free. * "argvars" must have VAR_FIXED for v_lock. */ v->di_tv = argvars[i]; v->di_tv.v_lock = VAR_FIXED; if (ai >= 0 && ai < MAX_FUNC_ARGS) { list_append(&fc->l_varlist, &fc->l_listitems[ai]); fc->l_listitems[ai].li_tv = argvars[i]; fc->l_listitems[ai].li_tv.v_lock = VAR_FIXED; } } /* Don't redraw while executing the function. */ ++RedrawingDisabled; save_sourcing_name = sourcing_name; save_sourcing_lnum = sourcing_lnum; sourcing_lnum = 1; /* need space for function name + ("function " + 3) or "[number]" */ len = (save_sourcing_name == NULL ? 0 : STRLEN(save_sourcing_name)) + STRLEN(fp->uf_name) + 20; sourcing_name = alloc((unsigned)len); if (sourcing_name != NULL) { if (save_sourcing_name != NULL && STRNCMP(save_sourcing_name, "function ", 9) == 0) sprintf((char *)sourcing_name, "%s[%d]..", save_sourcing_name, (int)save_sourcing_lnum); else STRCPY(sourcing_name, "function "); cat_func_name(sourcing_name + STRLEN(sourcing_name), fp); if (p_verbose >= 12) { ++no_wait_return; verbose_enter_scroll(); smsg((char_u *)_("calling %s"), sourcing_name); if (p_verbose >= 14) { char_u buf[MSG_BUF_LEN]; char_u numbuf2[NUMBUFLEN]; char_u *tofree; char_u *s; msg_puts((char_u *)"("); for (i = 0; i < argcount; ++i) { if (i > 0) msg_puts((char_u *)", "); if (argvars[i].v_type == VAR_NUMBER) msg_outnum((long)argvars[i].vval.v_number); else { /* Do not want errors such as E724 here. */ ++emsg_off; s = tv2string(&argvars[i], &tofree, numbuf2, 0); --emsg_off; if (s != NULL) { if (vim_strsize(s) > MSG_BUF_CLEN) { trunc_string(s, buf, MSG_BUF_CLEN, MSG_BUF_LEN); s = buf; } msg_puts(s); vim_free(tofree); } } } msg_puts((char_u *)")"); } msg_puts((char_u *)"\n"); /* don't overwrite this either */ verbose_leave_scroll(); --no_wait_return; } } #ifdef FEAT_PROFILE if (do_profiling == PROF_YES) { if (!fp->uf_profiling && has_profiling(FALSE, fp->uf_name, NULL)) func_do_profile(fp); if (fp->uf_profiling || (fc->caller != NULL && fc->caller->func->uf_profiling)) { ++fp->uf_tm_count; profile_start(&call_start); profile_zero(&fp->uf_tm_children); } script_prof_save(&wait_start); } #endif save_current_SID = current_SID; current_SID = fp->uf_script_ID; save_did_emsg = did_emsg; did_emsg = FALSE; /* call do_cmdline() to execute the lines */ do_cmdline(NULL, get_func_line, (void *)fc, DOCMD_NOWAIT|DOCMD_VERBOSE|DOCMD_REPEAT); --RedrawingDisabled; /* when the function was aborted because of an error, return -1 */ if ((did_emsg && (fp->uf_flags & FC_ABORT)) || rettv->v_type == VAR_UNKNOWN) { clear_tv(rettv); rettv->v_type = VAR_NUMBER; rettv->vval.v_number = -1; } #ifdef FEAT_PROFILE if (do_profiling == PROF_YES && (fp->uf_profiling || (fc->caller != NULL && fc->caller->func->uf_profiling))) { profile_end(&call_start); profile_sub_wait(&wait_start, &call_start); profile_add(&fp->uf_tm_total, &call_start); profile_self(&fp->uf_tm_self, &call_start, &fp->uf_tm_children); if (fc->caller != NULL && fc->caller->func->uf_profiling) { profile_add(&fc->caller->func->uf_tm_children, &call_start); profile_add(&fc->caller->func->uf_tml_children, &call_start); } } #endif /* when being verbose, mention the return value */ if (p_verbose >= 12) { ++no_wait_return; verbose_enter_scroll(); if (aborting()) smsg((char_u *)_("%s aborted"), sourcing_name); else if (fc->rettv->v_type == VAR_NUMBER) smsg((char_u *)_("%s returning #%ld"), sourcing_name, (long)fc->rettv->vval.v_number); else { char_u buf[MSG_BUF_LEN]; char_u numbuf2[NUMBUFLEN]; char_u *tofree; char_u *s; /* The value may be very long. Skip the middle part, so that we * have some idea how it starts and ends. smsg() would always * truncate it at the end. Don't want errors such as E724 here. */ ++emsg_off; s = tv2string(fc->rettv, &tofree, numbuf2, 0); --emsg_off; if (s != NULL) { if (vim_strsize(s) > MSG_BUF_CLEN) { trunc_string(s, buf, MSG_BUF_CLEN, MSG_BUF_LEN); s = buf; } smsg((char_u *)_("%s returning %s"), sourcing_name, s); vim_free(tofree); } } msg_puts((char_u *)"\n"); /* don't overwrite this either */ verbose_leave_scroll(); --no_wait_return; } vim_free(sourcing_name); sourcing_name = save_sourcing_name; sourcing_lnum = save_sourcing_lnum; current_SID = save_current_SID; #ifdef FEAT_PROFILE if (do_profiling == PROF_YES) script_prof_restore(&wait_start); #endif if (p_verbose >= 12 && sourcing_name != NULL) { ++no_wait_return; verbose_enter_scroll(); smsg((char_u *)_("continuing in %s"), sourcing_name); msg_puts((char_u *)"\n"); /* don't overwrite this either */ verbose_leave_scroll(); --no_wait_return; } did_emsg |= save_did_emsg; current_funccal = fc->caller; --depth; /* If the a:000 list and the l: and a: dicts are not referenced we can * free the funccall_T and what's in it. */ if (fc->l_varlist.lv_refcount == DO_NOT_FREE_CNT && fc->l_vars.dv_refcount == DO_NOT_FREE_CNT && fc->l_avars.dv_refcount == DO_NOT_FREE_CNT) { free_funccal(fc, FALSE); } else { hashitem_T *hi; listitem_T *li; int todo; /* "fc" is still in use. This can happen when returning "a:000" or * assigning "l:" to a global variable. * Link "fc" in the list for garbage collection later. */ fc->caller = previous_funccal; previous_funccal = fc; /* Make a copy of the a: variables, since we didn't do that above. */ todo = (int)fc->l_avars.dv_hashtab.ht_used; for (hi = fc->l_avars.dv_hashtab.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; v = HI2DI(hi); copy_tv(&v->di_tv, &v->di_tv); } } /* Make a copy of the a:000 items, since we didn't do that above. */ for (li = fc->l_varlist.lv_first; li != NULL; li = li->li_next) copy_tv(&li->li_tv, &li->li_tv); } } /* * Return TRUE if items in "fc" do not have "copyID". That means they are not * referenced from anywhere that is in use. */ static int can_free_funccal(fc, copyID) funccall_T *fc; int copyID; { return (fc->l_varlist.lv_copyID != copyID && fc->l_vars.dv_copyID != copyID && fc->l_avars.dv_copyID != copyID); } /* * Free "fc" and what it contains. */ static void free_funccal(fc, free_val) funccall_T *fc; int free_val; /* a: vars were allocated */ { listitem_T *li; /* The a: variables typevals may not have been allocated, only free the * allocated variables. */ vars_clear_ext(&fc->l_avars.dv_hashtab, free_val); /* free all l: variables */ vars_clear(&fc->l_vars.dv_hashtab); /* Free the a:000 variables if they were allocated. */ if (free_val) for (li = fc->l_varlist.lv_first; li != NULL; li = li->li_next) clear_tv(&li->li_tv); vim_free(fc); } /* * Add a number variable "name" to dict "dp" with value "nr". */ static void add_nr_var(dp, v, name, nr) dict_T *dp; dictitem_T *v; char *name; varnumber_T nr; { STRCPY(v->di_key, name); v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; hash_add(&dp->dv_hashtab, DI2HIKEY(v)); v->di_tv.v_type = VAR_NUMBER; v->di_tv.v_lock = VAR_FIXED; v->di_tv.vval.v_number = nr; } /* * ":return [expr]" */ void ex_return(eap) exarg_T *eap; { char_u *arg = eap->arg; typval_T rettv; int returning = FALSE; if (current_funccal == NULL) { EMSG(_("E133: :return not inside a function")); return; } if (eap->skip) ++emsg_skip; eap->nextcmd = NULL; if ((*arg != NUL && *arg != '|' && *arg != '\n') && eval0(arg, &rettv, &eap->nextcmd, !eap->skip) != FAIL) { if (!eap->skip) returning = do_return(eap, FALSE, TRUE, &rettv); else clear_tv(&rettv); } /* It's safer to return also on error. */ else if (!eap->skip) { /* * Return unless the expression evaluation has been cancelled due to an * aborting error, an interrupt, or an exception. */ if (!aborting()) returning = do_return(eap, FALSE, TRUE, NULL); } /* When skipping or the return gets pending, advance to the next command * in this line (!returning). Otherwise, ignore the rest of the line. * Following lines will be ignored by get_func_line(). */ if (returning) eap->nextcmd = NULL; else if (eap->nextcmd == NULL) /* no argument */ eap->nextcmd = check_nextcmd(arg); if (eap->skip) --emsg_skip; } /* * Return from a function. Possibly makes the return pending. Also called * for a pending return at the ":endtry" or after returning from an extra * do_cmdline(). "reanimate" is used in the latter case. "is_cmd" is set * when called due to a ":return" command. "rettv" may point to a typval_T * with the return rettv. Returns TRUE when the return can be carried out, * FALSE when the return gets pending. */ int do_return(eap, reanimate, is_cmd, rettv) exarg_T *eap; int reanimate; int is_cmd; void *rettv; { int idx; struct condstack *cstack = eap->cstack; if (reanimate) /* Undo the return. */ current_funccal->returned = FALSE; /* * Cleanup (and inactivate) conditionals, but stop when a try conditional * not in its finally clause (which then is to be executed next) is found. * In this case, make the ":return" pending for execution at the ":endtry". * Otherwise, return normally. */ idx = cleanup_conditionals(eap->cstack, 0, TRUE); if (idx >= 0) { cstack->cs_pending[idx] = CSTP_RETURN; if (!is_cmd && !reanimate) /* A pending return again gets pending. "rettv" points to an * allocated variable with the rettv of the original ":return"'s * argument if present or is NULL else. */ cstack->cs_rettv[idx] = rettv; else { /* When undoing a return in order to make it pending, get the stored * return rettv. */ if (reanimate) rettv = current_funccal->rettv; if (rettv != NULL) { /* Store the value of the pending return. */ if ((cstack->cs_rettv[idx] = alloc_tv()) != NULL) *(typval_T *)cstack->cs_rettv[idx] = *(typval_T *)rettv; else EMSG(_(e_outofmem)); } else cstack->cs_rettv[idx] = NULL; if (reanimate) { /* The pending return value could be overwritten by a ":return" * without argument in a finally clause; reset the default * return value. */ current_funccal->rettv->v_type = VAR_NUMBER; current_funccal->rettv->vval.v_number = 0; } } report_make_pending(CSTP_RETURN, rettv); } else { current_funccal->returned = TRUE; /* If the return is carried out now, store the return value. For * a return immediately after reanimation, the value is already * there. */ if (!reanimate && rettv != NULL) { clear_tv(current_funccal->rettv); *current_funccal->rettv = *(typval_T *)rettv; if (!is_cmd) vim_free(rettv); } } return idx < 0; } /* * Free the variable with a pending return value. */ void discard_pending_return(rettv) void *rettv; { free_tv((typval_T *)rettv); } /* * Generate a return command for producing the value of "rettv". The result * is an allocated string. Used by report_pending() for verbose messages. */ char_u * get_return_cmd(rettv) void *rettv; { char_u *s = NULL; char_u *tofree = NULL; char_u numbuf[NUMBUFLEN]; if (rettv != NULL) s = echo_string((typval_T *)rettv, &tofree, numbuf, 0); if (s == NULL) s = (char_u *)""; STRCPY(IObuff, ":return "); STRNCPY(IObuff + 8, s, IOSIZE - 8); if (STRLEN(s) + 8 >= IOSIZE) STRCPY(IObuff + IOSIZE - 4, "..."); vim_free(tofree); return vim_strsave(IObuff); } /* * Get next function line. * Called by do_cmdline() to get the next line. * Returns allocated string, or NULL for end of function. */ char_u * get_func_line(c, cookie, indent) int c UNUSED; void *cookie; int indent UNUSED; { funccall_T *fcp = (funccall_T *)cookie; ufunc_T *fp = fcp->func; char_u *retval; garray_T *gap; /* growarray with function lines */ /* If breakpoints have been added/deleted need to check for it. */ if (fcp->dbg_tick != debug_tick) { fcp->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name, sourcing_lnum); fcp->dbg_tick = debug_tick; } #ifdef FEAT_PROFILE if (do_profiling == PROF_YES) func_line_end(cookie); #endif gap = &fp->uf_lines; if (((fp->uf_flags & FC_ABORT) && did_emsg && !aborted_in_try()) || fcp->returned) retval = NULL; else { /* Skip NULL lines (continuation lines). */ while (fcp->linenr < gap->ga_len && ((char_u **)(gap->ga_data))[fcp->linenr] == NULL) ++fcp->linenr; if (fcp->linenr >= gap->ga_len) retval = NULL; else { retval = vim_strsave(((char_u **)(gap->ga_data))[fcp->linenr++]); sourcing_lnum = fcp->linenr; #ifdef FEAT_PROFILE if (do_profiling == PROF_YES) func_line_start(cookie); #endif } } /* Did we encounter a breakpoint? */ if (fcp->breakpoint != 0 && fcp->breakpoint <= sourcing_lnum) { dbg_breakpoint(fp->uf_name, sourcing_lnum); /* Find next breakpoint. */ fcp->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name, sourcing_lnum); fcp->dbg_tick = debug_tick; } return retval; } #if defined(FEAT_PROFILE) || defined(PROTO) /* * Called when starting to read a function line. * "sourcing_lnum" must be correct! * When skipping lines it may not actually be executed, but we won't find out * until later and we need to store the time now. */ void func_line_start(cookie) void *cookie; { funccall_T *fcp = (funccall_T *)cookie; ufunc_T *fp = fcp->func; if (fp->uf_profiling && sourcing_lnum >= 1 && sourcing_lnum <= fp->uf_lines.ga_len) { fp->uf_tml_idx = sourcing_lnum - 1; /* Skip continuation lines. */ while (fp->uf_tml_idx > 0 && FUNCLINE(fp, fp->uf_tml_idx) == NULL) --fp->uf_tml_idx; fp->uf_tml_execed = FALSE; profile_start(&fp->uf_tml_start); profile_zero(&fp->uf_tml_children); profile_get_wait(&fp->uf_tml_wait); } } /* * Called when actually executing a function line. */ void func_line_exec(cookie) void *cookie; { funccall_T *fcp = (funccall_T *)cookie; ufunc_T *fp = fcp->func; if (fp->uf_profiling && fp->uf_tml_idx >= 0) fp->uf_tml_execed = TRUE; } /* * Called when done with a function line. */ void func_line_end(cookie) void *cookie; { funccall_T *fcp = (funccall_T *)cookie; ufunc_T *fp = fcp->func; if (fp->uf_profiling && fp->uf_tml_idx >= 0) { if (fp->uf_tml_execed) { ++fp->uf_tml_count[fp->uf_tml_idx]; profile_end(&fp->uf_tml_start); profile_sub_wait(&fp->uf_tml_wait, &fp->uf_tml_start); profile_add(&fp->uf_tml_total[fp->uf_tml_idx], &fp->uf_tml_start); profile_self(&fp->uf_tml_self[fp->uf_tml_idx], &fp->uf_tml_start, &fp->uf_tml_children); } fp->uf_tml_idx = -1; } } #endif /* * Return TRUE if the currently active function should be ended, because a * return was encountered or an error occurred. Used inside a ":while". */ int func_has_ended(cookie) void *cookie; { funccall_T *fcp = (funccall_T *)cookie; /* Ignore the "abort" flag if the abortion behavior has been changed due to * an error inside a try conditional. */ return (((fcp->func->uf_flags & FC_ABORT) && did_emsg && !aborted_in_try()) || fcp->returned); } /* * return TRUE if cookie indicates a function which "abort"s on errors. */ int func_has_abort(cookie) void *cookie; { return ((funccall_T *)cookie)->func->uf_flags & FC_ABORT; } #if defined(FEAT_VIMINFO) || defined(FEAT_SESSION) typedef enum { VAR_FLAVOUR_DEFAULT, /* doesn't start with uppercase */ VAR_FLAVOUR_SESSION, /* starts with uppercase, some lower */ VAR_FLAVOUR_VIMINFO /* all uppercase */ } var_flavour_T; static var_flavour_T var_flavour(char_u *varname); static var_flavour_T var_flavour(varname) char_u *varname; { char_u *p = varname; if (ASCII_ISUPPER(*p)) { while (*(++p)) if (ASCII_ISLOWER(*p)) return VAR_FLAVOUR_SESSION; return VAR_FLAVOUR_VIMINFO; } else return VAR_FLAVOUR_DEFAULT; } #endif #if defined(FEAT_VIMINFO) || defined(PROTO) /* * Restore global vars that start with a capital from the viminfo file */ int read_viminfo_varlist(virp, writing) vir_T *virp; int writing; { char_u *tab; int type = VAR_NUMBER; typval_T tv; funccall_T *save_funccal; if (!writing && (find_viminfo_parameter('!') != NULL)) { tab = vim_strchr(virp->vir_line + 1, '\t'); if (tab != NULL) { *tab++ = '\0'; /* isolate the variable name */ switch (*tab) { case 'S': type = VAR_STRING; break; #ifdef FEAT_FLOAT case 'F': type = VAR_FLOAT; break; #endif case 'D': type = VAR_DICT; break; case 'L': type = VAR_LIST; break; } tab = vim_strchr(tab, '\t'); if (tab != NULL) { tv.v_type = type; if (type == VAR_STRING || type == VAR_DICT || type == VAR_LIST) tv.vval.v_string = viminfo_readstring(virp, (int)(tab - virp->vir_line + 1), TRUE); #ifdef FEAT_FLOAT else if (type == VAR_FLOAT) (void)string2float(tab + 1, &tv.vval.v_float); #endif else tv.vval.v_number = atol((char *)tab + 1); if (type == VAR_DICT || type == VAR_LIST) { typval_T *etv = eval_expr(tv.vval.v_string, NULL); if (etv == NULL) /* Failed to parse back the dict or list, use it as a * string. */ tv.v_type = VAR_STRING; else { vim_free(tv.vval.v_string); tv = *etv; vim_free(etv); } } /* when in a function use global variables */ save_funccal = current_funccal; current_funccal = NULL; set_var(virp->vir_line + 1, &tv, FALSE); current_funccal = save_funccal; if (tv.v_type == VAR_STRING) vim_free(tv.vval.v_string); else if (tv.v_type == VAR_DICT || tv.v_type == VAR_LIST) clear_tv(&tv); } } } return viminfo_readline(virp); } /* * Write global vars that start with a capital to the viminfo file */ void write_viminfo_varlist(fp) FILE *fp; { hashitem_T *hi; dictitem_T *this_var; int todo; char *s; char_u *p; char_u *tofree; char_u numbuf[NUMBUFLEN]; if (find_viminfo_parameter('!') == NULL) return; fputs(_("\n# global variables:\n"), fp); todo = (int)globvarht.ht_used; for (hi = globvarht.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; this_var = HI2DI(hi); if (var_flavour(this_var->di_key) == VAR_FLAVOUR_VIMINFO) { switch (this_var->di_tv.v_type) { case VAR_STRING: s = "STR"; break; case VAR_NUMBER: s = "NUM"; break; #ifdef FEAT_FLOAT case VAR_FLOAT: s = "FLO"; break; #endif case VAR_DICT: s = "DIC"; break; case VAR_LIST: s = "LIS"; break; default: continue; } fprintf(fp, "!%s\t%s\t", this_var->di_key, s); p = echo_string(&this_var->di_tv, &tofree, numbuf, 0); if (p != NULL) viminfo_writestring(fp, p); vim_free(tofree); } } } } #endif #if defined(FEAT_SESSION) || defined(PROTO) int store_session_globals(fd) FILE *fd; { hashitem_T *hi; dictitem_T *this_var; int todo; char_u *p, *t; todo = (int)globvarht.ht_used; for (hi = globvarht.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; this_var = HI2DI(hi); if ((this_var->di_tv.v_type == VAR_NUMBER || this_var->di_tv.v_type == VAR_STRING) && var_flavour(this_var->di_key) == VAR_FLAVOUR_SESSION) { /* Escape special characters with a backslash. Turn a LF and * CR into \n and \r. */ p = vim_strsave_escaped(get_tv_string(&this_var->di_tv), (char_u *)"\\\"\n\r"); if (p == NULL) /* out of memory */ break; for (t = p; *t != NUL; ++t) if (*t == '\n') *t = 'n'; else if (*t == '\r') *t = 'r'; if ((fprintf(fd, "let %s = %c%s%c", this_var->di_key, (this_var->di_tv.v_type == VAR_STRING) ? '"' : ' ', p, (this_var->di_tv.v_type == VAR_STRING) ? '"' : ' ') < 0) || put_eol(fd) == FAIL) { vim_free(p); return FAIL; } vim_free(p); } #ifdef FEAT_FLOAT else if (this_var->di_tv.v_type == VAR_FLOAT && var_flavour(this_var->di_key) == VAR_FLAVOUR_SESSION) { float_T f = this_var->di_tv.vval.v_float; int sign = ' '; if (f < 0) { f = -f; sign = '-'; } if ((fprintf(fd, "let %s = %c%f", this_var->di_key, sign, f) < 0) || put_eol(fd) == FAIL) return FAIL; } #endif } } return OK; } #endif /* * Display script name where an item was last set. * Should only be invoked when 'verbose' is non-zero. */ void last_set_msg(scriptID) scid_T scriptID; { char_u *p; if (scriptID != 0) { p = home_replace_save(NULL, get_scriptname(scriptID)); if (p != NULL) { verbose_enter(); MSG_PUTS(_("\n\tLast set from ")); MSG_PUTS(p); vim_free(p); verbose_leave(); } } } /* * List v:oldfiles in a nice way. */ void ex_oldfiles(eap) exarg_T *eap UNUSED; { list_T *l = vimvars[VV_OLDFILES].vv_list; listitem_T *li; int nr = 0; if (l == NULL) msg((char_u *)_("No old files")); else { msg_start(); msg_scroll = TRUE; for (li = l->lv_first; li != NULL && !got_int; li = li->li_next) { msg_outnum((long)++nr); MSG_PUTS(": "); msg_outtrans(get_tv_string(&li->li_tv)); msg_putchar('\n'); out_flush(); /* output one line at a time */ ui_breakcheck(); } /* Assume "got_int" was set to truncate the listing. */ got_int = FALSE; #ifdef FEAT_BROWSE_CMD if (cmdmod.browse) { quit_more = FALSE; nr = prompt_for_number(FALSE); msg_starthere(); if (nr > 0) { char_u *p = list_find_str(get_vim_var_list(VV_OLDFILES), (long)nr); if (p != NULL) { p = expand_env_save(p); eap->arg = p; eap->cmdidx = CMD_edit; cmdmod.browse = FALSE; do_exedit(eap, NULL); vim_free(p); } } } #endif } } /* reset v:option_new, v:option_old and v:option_type */ void reset_v_option_vars() { set_vim_var_string(VV_OPTION_NEW, NULL, -1); set_vim_var_string(VV_OPTION_OLD, NULL, -1); set_vim_var_string(VV_OPTION_TYPE, NULL, -1); } #endif /* FEAT_EVAL */ #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) || defined(PROTO) #ifdef WIN3264 /* * Functions for ":8" filename modifier: get 8.3 version of a filename. */ static int get_short_pathname(char_u **fnamep, char_u **bufp, int *fnamelen); static int shortpath_for_invalid_fname(char_u **fname, char_u **bufp, int *fnamelen); static int shortpath_for_partial(char_u **fnamep, char_u **bufp, int *fnamelen); /* * Get the short path (8.3) for the filename in "fnamep". * Only works for a valid file name. * When the path gets longer "fnamep" is changed and the allocated buffer * is put in "bufp". * *fnamelen is the length of "fnamep" and set to 0 for a nonexistent path. * Returns OK on success, FAIL on failure. */ static int get_short_pathname(fnamep, bufp, fnamelen) char_u **fnamep; char_u **bufp; int *fnamelen; { int l, len; char_u *newbuf; len = *fnamelen; l = GetShortPathName(*fnamep, *fnamep, len); if (l > len - 1) { /* If that doesn't work (not enough space), then save the string * and try again with a new buffer big enough. */ newbuf = vim_strnsave(*fnamep, l); if (newbuf == NULL) return FAIL; vim_free(*bufp); *fnamep = *bufp = newbuf; /* Really should always succeed, as the buffer is big enough. */ l = GetShortPathName(*fnamep, *fnamep, l+1); } *fnamelen = l; return OK; } /* * Get the short path (8.3) for the filename in "fname". The converted * path is returned in "bufp". * * Some of the directories specified in "fname" may not exist. This function * will shorten the existing directories at the beginning of the path and then * append the remaining non-existing path. * * fname - Pointer to the filename to shorten. On return, contains the * pointer to the shortened pathname * bufp - Pointer to an allocated buffer for the filename. * fnamelen - Length of the filename pointed to by fname * * Returns OK on success (or nothing done) and FAIL on failure (out of memory). */ static int shortpath_for_invalid_fname(fname, bufp, fnamelen) char_u **fname; char_u **bufp; int *fnamelen; { char_u *short_fname, *save_fname, *pbuf_unused; char_u *endp, *save_endp; char_u ch; int old_len, len; int new_len, sfx_len; int retval = OK; /* Make a copy */ old_len = *fnamelen; save_fname = vim_strnsave(*fname, old_len); pbuf_unused = NULL; short_fname = NULL; endp = save_fname + old_len - 1; /* Find the end of the copy */ save_endp = endp; /* * Try shortening the supplied path till it succeeds by removing one * directory at a time from the tail of the path. */ len = 0; for (;;) { /* go back one path-separator */ while (endp > save_fname && !after_pathsep(save_fname, endp + 1)) --endp; if (endp <= save_fname) break; /* processed the complete path */ /* * Replace the path separator with a NUL and try to shorten the * resulting path. */ ch = *endp; *endp = 0; short_fname = save_fname; len = (int)STRLEN(short_fname) + 1; if (get_short_pathname(&short_fname, &pbuf_unused, &len) == FAIL) { retval = FAIL; goto theend; } *endp = ch; /* preserve the string */ if (len > 0) break; /* successfully shortened the path */ /* failed to shorten the path. Skip the path separator */ --endp; } if (len > 0) { /* * Succeeded in shortening the path. Now concatenate the shortened * path with the remaining path at the tail. */ /* Compute the length of the new path. */ sfx_len = (int)(save_endp - endp) + 1; new_len = len + sfx_len; *fnamelen = new_len; vim_free(*bufp); if (new_len > old_len) { /* There is not enough space in the currently allocated string, * copy it to a buffer big enough. */ *fname = *bufp = vim_strnsave(short_fname, new_len); if (*fname == NULL) { retval = FAIL; goto theend; } } else { /* Transfer short_fname to the main buffer (it's big enough), * unless get_short_pathname() did its work in-place. */ *fname = *bufp = save_fname; if (short_fname != save_fname) vim_strncpy(save_fname, short_fname, len); save_fname = NULL; } /* concat the not-shortened part of the path */ vim_strncpy(*fname + len, endp, sfx_len); (*fname)[new_len] = NUL; } theend: vim_free(pbuf_unused); vim_free(save_fname); return retval; } /* * Get a pathname for a partial path. * Returns OK for success, FAIL for failure. */ static int shortpath_for_partial(fnamep, bufp, fnamelen) char_u **fnamep; char_u **bufp; int *fnamelen; { int sepcount, len, tflen; char_u *p; char_u *pbuf, *tfname; int hasTilde; /* Count up the path separators from the RHS.. so we know which part * of the path to return. */ sepcount = 0; for (p = *fnamep; p < *fnamep + *fnamelen; mb_ptr_adv(p)) if (vim_ispathsep(*p)) ++sepcount; /* Need full path first (use expand_env() to remove a "~/") */ hasTilde = (**fnamep == '~'); if (hasTilde) pbuf = tfname = expand_env_save(*fnamep); else pbuf = tfname = FullName_save(*fnamep, FALSE); len = tflen = (int)STRLEN(tfname); if (get_short_pathname(&tfname, &pbuf, &len) == FAIL) return FAIL; if (len == 0) { /* Don't have a valid filename, so shorten the rest of the * path if we can. This CAN give us invalid 8.3 filenames, but * there's not a lot of point in guessing what it might be. */ len = tflen; if (shortpath_for_invalid_fname(&tfname, &pbuf, &len) == FAIL) return FAIL; } /* Count the paths backward to find the beginning of the desired string. */ for (p = tfname + len - 1; p >= tfname; --p) { #ifdef FEAT_MBYTE if (has_mbyte) p -= mb_head_off(tfname, p); #endif if (vim_ispathsep(*p)) { if (sepcount == 0 || (hasTilde && sepcount == 1)) break; else sepcount --; } } if (hasTilde) { --p; if (p >= tfname) *p = '~'; else return FAIL; } else ++p; /* Copy in the string - p indexes into tfname - allocated at pbuf */ vim_free(*bufp); *fnamelen = (int)STRLEN(p); *bufp = pbuf; *fnamep = p; return OK; } #endif /* WIN3264 */ /* * Adjust a filename, according to a string of modifiers. * *fnamep must be NUL terminated when called. When returning, the length is * determined by *fnamelen. * Returns VALID_ flags or -1 for failure. * When there is an error, *fnamep is set to NULL. */ int modify_fname(src, usedlen, fnamep, bufp, fnamelen) char_u *src; /* string with modifiers */ int *usedlen; /* characters after src that are used */ char_u **fnamep; /* file name so far */ char_u **bufp; /* buffer for allocated file name or NULL */ int *fnamelen; /* length of fnamep */ { int valid = 0; char_u *tail; char_u *s, *p, *pbuf; char_u dirname[MAXPATHL]; int c; int has_fullname = 0; #ifdef WIN3264 char_u *fname_start = *fnamep; int has_shortname = 0; #endif repeat: /* ":p" - full path/file_name */ if (src[*usedlen] == ':' && src[*usedlen + 1] == 'p') { has_fullname = 1; valid |= VALID_PATH; *usedlen += 2; /* Expand "~/path" for all systems and "~user/path" for Unix and VMS */ if ((*fnamep)[0] == '~' #if !defined(UNIX) && !(defined(VMS) && defined(USER_HOME)) && ((*fnamep)[1] == '/' # ifdef BACKSLASH_IN_FILENAME || (*fnamep)[1] == '\\' # endif || (*fnamep)[1] == NUL) #endif ) { *fnamep = expand_env_save(*fnamep); vim_free(*bufp); /* free any allocated file name */ *bufp = *fnamep; if (*fnamep == NULL) return -1; } /* When "/." or "/.." is used: force expansion to get rid of it. */ for (p = *fnamep; *p != NUL; mb_ptr_adv(p)) { if (vim_ispathsep(*p) && p[1] == '.' && (p[2] == NUL || vim_ispathsep(p[2]) || (p[2] == '.' && (p[3] == NUL || vim_ispathsep(p[3]))))) break; } /* FullName_save() is slow, don't use it when not needed. */ if (*p != NUL || !vim_isAbsName(*fnamep)) { *fnamep = FullName_save(*fnamep, *p != NUL); vim_free(*bufp); /* free any allocated file name */ *bufp = *fnamep; if (*fnamep == NULL) return -1; } #ifdef WIN3264 # if _WIN32_WINNT >= 0x0500 if (vim_strchr(*fnamep, '~') != NULL) { /* Expand 8.3 filename to full path. Needed to make sure the same * file does not have two different names. * Note: problem does not occur if _WIN32_WINNT < 0x0500. */ p = alloc(_MAX_PATH + 1); if (p != NULL) { if (GetLongPathName(*fnamep, p, _MAX_PATH)) { vim_free(*bufp); *bufp = *fnamep = p; } else vim_free(p); } } # endif #endif /* Append a path separator to a directory. */ if (mch_isdir(*fnamep)) { /* Make room for one or two extra characters. */ *fnamep = vim_strnsave(*fnamep, (int)STRLEN(*fnamep) + 2); vim_free(*bufp); /* free any allocated file name */ *bufp = *fnamep; if (*fnamep == NULL) return -1; add_pathsep(*fnamep); } } /* ":." - path relative to the current directory */ /* ":~" - path relative to the home directory */ /* ":8" - shortname path - postponed till after */ while (src[*usedlen] == ':' && ((c = src[*usedlen + 1]) == '.' || c == '~' || c == '8')) { *usedlen += 2; if (c == '8') { #ifdef WIN3264 has_shortname = 1; /* Postpone this. */ #endif continue; } pbuf = NULL; /* Need full path first (use expand_env() to remove a "~/") */ if (!has_fullname) { if (c == '.' && **fnamep == '~') p = pbuf = expand_env_save(*fnamep); else p = pbuf = FullName_save(*fnamep, FALSE); } else p = *fnamep; has_fullname = 0; if (p != NULL) { if (c == '.') { mch_dirname(dirname, MAXPATHL); s = shorten_fname(p, dirname); if (s != NULL) { *fnamep = s; if (pbuf != NULL) { vim_free(*bufp); /* free any allocated file name */ *bufp = pbuf; pbuf = NULL; } } } else { home_replace(NULL, p, dirname, MAXPATHL, TRUE); /* Only replace it when it starts with '~' */ if (*dirname == '~') { s = vim_strsave(dirname); if (s != NULL) { *fnamep = s; vim_free(*bufp); *bufp = s; } } } vim_free(pbuf); } } tail = gettail(*fnamep); *fnamelen = (int)STRLEN(*fnamep); /* ":h" - head, remove "/file_name", can be repeated */ /* Don't remove the first "/" or "c:\" */ while (src[*usedlen] == ':' && src[*usedlen + 1] == 'h') { valid |= VALID_HEAD; *usedlen += 2; s = get_past_head(*fnamep); while (tail > s && after_pathsep(s, tail)) mb_ptr_back(*fnamep, tail); *fnamelen = (int)(tail - *fnamep); #ifdef VMS if (*fnamelen > 0) *fnamelen += 1; /* the path separator is part of the path */ #endif if (*fnamelen == 0) { /* Result is empty. Turn it into "." to make ":cd %:h" work. */ p = vim_strsave((char_u *)"."); if (p == NULL) return -1; vim_free(*bufp); *bufp = *fnamep = tail = p; *fnamelen = 1; } else { while (tail > s && !after_pathsep(s, tail)) mb_ptr_back(*fnamep, tail); } } /* ":8" - shortname */ if (src[*usedlen] == ':' && src[*usedlen + 1] == '8') { *usedlen += 2; #ifdef WIN3264 has_shortname = 1; #endif } #ifdef WIN3264 /* * Handle ":8" after we have done 'heads' and before we do 'tails'. */ if (has_shortname) { /* Copy the string if it is shortened by :h and when it wasn't copied * yet, because we are going to change it in place. Avoids changing * the buffer name for "%:8". */ if (*fnamelen < (int)STRLEN(*fnamep) || *fnamep == fname_start) { p = vim_strnsave(*fnamep, *fnamelen); if (p == NULL) return -1; vim_free(*bufp); *bufp = *fnamep = p; } /* Split into two implementations - makes it easier. First is where * there isn't a full name already, second is where there is. */ if (!has_fullname && !vim_isAbsName(*fnamep)) { if (shortpath_for_partial(fnamep, bufp, fnamelen) == FAIL) return -1; } else { int l = *fnamelen; /* Simple case, already have the full-name. * Nearly always shorter, so try first time. */ if (get_short_pathname(fnamep, bufp, &l) == FAIL) return -1; if (l == 0) { /* Couldn't find the filename, search the paths. */ l = *fnamelen; if (shortpath_for_invalid_fname(fnamep, bufp, &l) == FAIL) return -1; } *fnamelen = l; } } #endif /* WIN3264 */ /* ":t" - tail, just the basename */ if (src[*usedlen] == ':' && src[*usedlen + 1] == 't') { *usedlen += 2; *fnamelen -= (int)(tail - *fnamep); *fnamep = tail; } /* ":e" - extension, can be repeated */ /* ":r" - root, without extension, can be repeated */ while (src[*usedlen] == ':' && (src[*usedlen + 1] == 'e' || src[*usedlen + 1] == 'r')) { /* find a '.' in the tail: * - for second :e: before the current fname * - otherwise: The last '.' */ if (src[*usedlen + 1] == 'e' && *fnamep > tail) s = *fnamep - 2; else s = *fnamep + *fnamelen - 1; for ( ; s > tail; --s) if (s[0] == '.') break; if (src[*usedlen + 1] == 'e') /* :e */ { if (s > tail) { *fnamelen += (int)(*fnamep - (s + 1)); *fnamep = s + 1; #ifdef VMS /* cut version from the extension */ s = *fnamep + *fnamelen - 1; for ( ; s > *fnamep; --s) if (s[0] == ';') break; if (s > *fnamep) *fnamelen = s - *fnamep; #endif } else if (*fnamep <= tail) *fnamelen = 0; } else /* :r */ { if (s > tail) /* remove one extension */ *fnamelen = (int)(s - *fnamep); } *usedlen += 2; } /* ":s?pat?foo?" - substitute */ /* ":gs?pat?foo?" - global substitute */ if (src[*usedlen] == ':' && (src[*usedlen + 1] == 's' || (src[*usedlen + 1] == 'g' && src[*usedlen + 2] == 's'))) { char_u *str; char_u *pat; char_u *sub; int sep; char_u *flags; int didit = FALSE; flags = (char_u *)""; s = src + *usedlen + 2; if (src[*usedlen + 1] == 'g') { flags = (char_u *)"g"; ++s; } sep = *s++; if (sep) { /* find end of pattern */ p = vim_strchr(s, sep); if (p != NULL) { pat = vim_strnsave(s, (int)(p - s)); if (pat != NULL) { s = p + 1; /* find end of substitution */ p = vim_strchr(s, sep); if (p != NULL) { sub = vim_strnsave(s, (int)(p - s)); str = vim_strnsave(*fnamep, *fnamelen); if (sub != NULL && str != NULL) { *usedlen = (int)(p + 1 - src); s = do_string_sub(str, pat, sub, flags); if (s != NULL) { *fnamep = s; *fnamelen = (int)STRLEN(s); vim_free(*bufp); *bufp = s; didit = TRUE; } } vim_free(sub); vim_free(str); } vim_free(pat); } } /* after using ":s", repeat all the modifiers */ if (didit) goto repeat; } } if (src[*usedlen] == ':' && src[*usedlen + 1] == 'S') { p = vim_strsave_shellescape(*fnamep, FALSE, FALSE); if (p == NULL) return -1; vim_free(*bufp); *bufp = *fnamep = p; *fnamelen = (int)STRLEN(p); *usedlen += 2; } return valid; } /* * Perform a substitution on "str" with pattern "pat" and substitute "sub". * "flags" can be "g" to do a global substitute. * Returns an allocated string, NULL for error. */ char_u * do_string_sub(str, pat, sub, flags) char_u *str; char_u *pat; char_u *sub; char_u *flags; { int sublen; regmatch_T regmatch; int i; int do_all; char_u *tail; char_u *end; garray_T ga; char_u *ret; char_u *save_cpo; char_u *zero_width = NULL; /* Make 'cpoptions' empty, so that the 'l' flag doesn't work here */ save_cpo = p_cpo; p_cpo = empty_option; ga_init2(&ga, 1, 200); do_all = (flags[0] == 'g'); regmatch.rm_ic = p_ic; regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING); if (regmatch.regprog != NULL) { tail = str; end = str + STRLEN(str); while (vim_regexec_nl(®match, str, (colnr_T)(tail - str))) { /* Skip empty match except for first match. */ if (regmatch.startp[0] == regmatch.endp[0]) { if (zero_width == regmatch.startp[0]) { /* avoid getting stuck on a match with an empty string */ i = MB_PTR2LEN(tail); mch_memmove((char_u *)ga.ga_data + ga.ga_len, tail, (size_t)i); ga.ga_len += i; tail += i; continue; } zero_width = regmatch.startp[0]; } /* * Get some space for a temporary buffer to do the substitution * into. It will contain: * - The text up to where the match is. * - The substituted text. * - The text after the match. */ sublen = vim_regsub(®match, sub, tail, FALSE, TRUE, FALSE); if (ga_grow(&ga, (int)((end - tail) + sublen - (regmatch.endp[0] - regmatch.startp[0]))) == FAIL) { ga_clear(&ga); break; } /* copy the text up to where the match is */ i = (int)(regmatch.startp[0] - tail); mch_memmove((char_u *)ga.ga_data + ga.ga_len, tail, (size_t)i); /* add the substituted text */ (void)vim_regsub(®match, sub, (char_u *)ga.ga_data + ga.ga_len + i, TRUE, TRUE, FALSE); ga.ga_len += i + sublen - 1; tail = regmatch.endp[0]; if (*tail == NUL) break; if (!do_all) break; } if (ga.ga_data != NULL) STRCPY((char *)ga.ga_data + ga.ga_len, tail); vim_regfree(regmatch.regprog); } ret = vim_strsave(ga.ga_data == NULL ? str : (char_u *)ga.ga_data); ga_clear(&ga); if (p_cpo == empty_option) p_cpo = save_cpo; else /* Darn, evaluating {sub} expression changed the value. */ free_string_option(save_cpo); return ret; } #endif /* defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) */