Mercurial > vim
view src/eval.c @ 83:d9030055c432 v7.0033
updated for version 7.0033
| author | vimboss |
|---|---|
| date | Fri, 07 Jan 2005 21:51:51 +0000 |
| parents | d2796c60ca6f |
| children | 8173ec1e9f1f |
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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. */ #if defined(MSDOS) || defined(MSWIN) # include <io.h> /* for mch_open(), must be before vim.h */ #endif #include "vim.h" #ifdef AMIGA # include <time.h> /* for strftime() */ #endif #ifdef MACOS # include <time.h> /* for time_t */ #endif #ifdef HAVE_FCNTL_H # include <fcntl.h> #endif #if defined(FEAT_EVAL) || defined(PROTO) #if SIZEOF_INT <= 3 /* use long if int is smaller than 32 bits */ typedef long varnumber_T; #else typedef int varnumber_T; #endif /* * Structure to hold an internal variable without a name. */ typedef struct { char v_type; /* see below: VAR_NUMBER, VAR_STRING, etc. */ union { varnumber_T v_number; /* number value */ char_u *v_string; /* string value (can be NULL!) */ struct listvar_S *v_list; /* list value (can be NULL!) */ } vval; } typeval; /* Values for "v_type". */ #define VAR_UNKNOWN 0 #define VAR_NUMBER 1 /* "v_number" is used */ #define VAR_STRING 2 /* "v_string" is used */ #define VAR_FUNC 3 /* "v_string" is function name */ #define VAR_LIST 4 /* "v_list" is used */ /* * Structure to hold an internal variable with a name. * The "tv" must come first, so that this can be used as a "typeval" as well. */ typedef struct { typeval tv; /* type and value of the variable */ char_u *v_name; /* name of variable */ } var; typedef var * VAR; /* * Structure to hold an item of a list: an internal variable without a name. */ struct listitem_S { struct listitem_S *li_next; /* next item in list */ struct listitem_S *li_prev; /* previous item in list */ typeval li_tv; /* type and value of the variable */ }; typedef struct listitem_S listitem; /* * Struct used by those that are using an item in a list. */ typedef struct listwatch_S { listitem *lw_item; /* item being watched */ struct listwatch_S *lw_next; /* next watcher */ } listwatch; /* * Structure to hold info about a list. */ struct listvar_S { int lv_refcount; /* reference count */ listitem *lv_first; /* first item, NULL if none */ listitem *lv_last; /* last item, NULL if none */ listwatch *lv_watch; /* first watcher, NULL if none */ }; typedef struct listvar_S listvar; #define VAR_LIST_MAXNEST 100 /* maximum nesting of lists */ static char *e_letunexp = N_("E18: Unexpected characters in :let"); static char *e_listidx = N_("E999: 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_intern2 = N_("E999: Internal error: %s"); static char *e_listarg = N_("E999: Argument of %s must be a list"); /* * All user-defined global variables are stored in "variables". */ garray_T variables = {0, 0, sizeof(var), 4, NULL}; /* * Array to hold an array with variables local to each sourced script. */ static garray_T ga_scripts = {0, 0, sizeof(garray_T), 4, NULL}; #define SCRIPT_VARS(id) (((garray_T *)ga_scripts.ga_data)[(id) - 1]) #define VAR_ENTRY(idx) (((VAR)(variables.ga_data))[idx]) #define VAR_GAP_ENTRY(idx, gap) (((VAR)(gap->ga_data))[idx]) #define BVAR_ENTRY(idx) (((VAR)(curbuf->b_vars.ga_data))[idx]) #define WVAR_ENTRY(idx) (((VAR)(curwin->w_vars.ga_data))[idx]) static int echo_attr = 0; /* attributes used for ":echo" */ /* * Structure to hold info for a user function. */ typedef struct ufunc ufunc_T; struct ufunc { ufunc_T *next; /* next function in list */ char_u *name; /* name of function; can start with <SNR>123_ (<SNR> is K_SPECIAL KS_EXTRA KE_SNR) */ int varargs; /* variable nr of arguments */ int flags; int calls; /* nr of active calls */ garray_T args; /* arguments */ garray_T lines; /* function lines */ scid_T script_ID; /* ID of script where function was defined, used for s: variables */ }; /* function flags */ #define FC_ABORT 1 /* abort function on error */ #define FC_RANGE 2 /* function accepts range */ /* * All user-defined functions are found in the forward-linked function list. * The first function is pointed at by firstfunc. */ ufunc_T *firstfunc = NULL; #define FUNCARG(fp, j) ((char_u **)(fp->args.ga_data))[j] #define FUNCLINE(fp, j) ((char_u **)(fp->lines.ga_data))[j] /* structure to hold info for a function that is currently being executed. */ struct funccall { ufunc_T *func; /* function being called */ int linenr; /* next line to be executed */ int returned; /* ":return" used */ int argcount; /* nr of arguments */ typeval *argvars; /* arguments */ var a0_var; /* "a:0" variable */ var firstline; /* "a:firstline" variable */ var lastline; /* "a:lastline" variable */ garray_T l_vars; /* local function variables */ typeval *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 */ }; /* * Info used by a ":for" loop. */ typedef struct forinfo_S { int fi_semicolon; /* TRUE if ending in '; var]' */ int fi_varcount; /* nr of variables in the list */ listwatch fi_lw; /* keep an eye on the item used. */ listvar *fi_list; /* list being used */ } forinfo; /* * Return the name of the executed function. */ char_u * func_name(cookie) void *cookie; { return ((struct funccall *)cookie)->func->name; } /* * Return the address holding the next breakpoint line for a funccall cookie. */ linenr_T * func_breakpoint(cookie) void *cookie; { return &((struct funccall *)cookie)->breakpoint; } /* * Return the address holding the debug tick for a funccall cookie. */ int * func_dbg_tick(cookie) void *cookie; { return &((struct funccall *)cookie)->dbg_tick; } /* * Return the nesting level for a funccall cookie. */ int func_level(cookie) void *cookie; { return ((struct funccall *)cookie)->level; } /* pointer to funccal for currently active function */ struct funccall *current_funccal = NULL; /* * Return TRUE when a function was ended by a ":return" command. */ int current_func_returned() { return current_funccal->returned; } /* * Array to hold the value of v: variables. */ #include "version.h" /* values for 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*/ struct vimvar { char *name; /* name of variable, without v: */ int len; /* length of name */ char_u *val; /* current value (can also be a number!) */ char type; /* VAR_NUMBER or VAR_STRING */ char flags; /* VV_COMPAT, VV_RO, VV_RO_SBX */ } vimvars[VV_LEN] = { /* The order here must match the VV_ defines in vim.h! */ {"count", sizeof("count") - 1, NULL, VAR_NUMBER, VV_COMPAT+VV_RO}, {"count1", sizeof("count1") - 1, NULL, VAR_NUMBER, VV_RO}, {"prevcount", sizeof("prevcount") - 1, NULL, VAR_NUMBER, VV_RO}, {"errmsg", sizeof("errmsg") - 1, NULL, VAR_STRING, VV_COMPAT}, {"warningmsg", sizeof("warningmsg") - 1, NULL, VAR_STRING, 0}, {"statusmsg", sizeof("statusmsg") - 1, NULL, VAR_STRING, 0}, {"shell_error", sizeof("shell_error") - 1, NULL, VAR_NUMBER, VV_COMPAT+VV_RO}, {"this_session", sizeof("this_session") - 1, NULL, VAR_STRING, VV_COMPAT}, {"version", sizeof("version") - 1, (char_u *)VIM_VERSION_100, VAR_NUMBER, VV_COMPAT+VV_RO}, {"lnum", sizeof("lnum") - 1, NULL, VAR_NUMBER, VV_RO_SBX}, {"termresponse", sizeof("termresponse") - 1, NULL, VAR_STRING, VV_RO}, {"fname", sizeof("fname") - 1, NULL, VAR_STRING, VV_RO}, {"lang", sizeof("lang") - 1, NULL, VAR_STRING, VV_RO}, {"lc_time", sizeof("lc_time") - 1, NULL, VAR_STRING, VV_RO}, {"ctype", sizeof("ctype") - 1, NULL, VAR_STRING, VV_RO}, {"charconvert_from", sizeof("charconvert_from") - 1, NULL, VAR_STRING, VV_RO}, {"charconvert_to", sizeof("charconvert_to") - 1, NULL, VAR_STRING, VV_RO}, {"fname_in", sizeof("fname_in") - 1, NULL, VAR_STRING, VV_RO}, {"fname_out", sizeof("fname_out") - 1, NULL, VAR_STRING, VV_RO}, {"fname_new", sizeof("fname_new") - 1, NULL, VAR_STRING, VV_RO}, {"fname_diff", sizeof("fname_diff") - 1, NULL, VAR_STRING, VV_RO}, {"cmdarg", sizeof("cmdarg") - 1, NULL, VAR_STRING, VV_RO}, {"foldstart", sizeof("foldstart") - 1, NULL, VAR_NUMBER, VV_RO_SBX}, {"foldend", sizeof("foldend") - 1, NULL, VAR_NUMBER, VV_RO_SBX}, {"folddashes", sizeof("folddashes") - 1, NULL, VAR_STRING, VV_RO_SBX}, {"foldlevel", sizeof("foldlevel") - 1, NULL, VAR_NUMBER, VV_RO_SBX}, {"progname", sizeof("progname") - 1, NULL, VAR_STRING, VV_RO}, {"servername", sizeof("servername") - 1, NULL, VAR_STRING, VV_RO}, {"dying", sizeof("dying") - 1, NULL, VAR_NUMBER, VV_RO}, {"exception", sizeof("exception") - 1, NULL, VAR_STRING, VV_RO}, {"throwpoint", sizeof("throwpoint") - 1, NULL, VAR_STRING, VV_RO}, {"register", sizeof("register") - 1, NULL, VAR_STRING, VV_RO}, {"cmdbang", sizeof("cmdbang") - 1, NULL, VAR_NUMBER, VV_RO}, {"insertmode", sizeof("insertmode") - 1, NULL, VAR_STRING, VV_RO}, }; static int eval0 __ARGS((char_u *arg, typeval *rettv, char_u **nextcmd, int evaluate)); static int eval1 __ARGS((char_u **arg, typeval *rettv, int evaluate)); static int eval2 __ARGS((char_u **arg, typeval *rettv, int evaluate)); static int eval3 __ARGS((char_u **arg, typeval *rettv, int evaluate)); static int eval4 __ARGS((char_u **arg, typeval *rettv, int evaluate)); static int eval5 __ARGS((char_u **arg, typeval *rettv, int evaluate)); static int eval6 __ARGS((char_u **arg, typeval *rettv, int evaluate)); static int eval7 __ARGS((char_u **arg, typeval *rettv, int evaluate)); static int eval_index __ARGS((char_u **arg, typeval *rettv, int evaluate)); static int get_option_tv __ARGS((char_u **arg, typeval *rettv, int evaluate)); static int get_string_tv __ARGS((char_u **arg, typeval *rettv, int evaluate)); static int get_lit_string_tv __ARGS((char_u **arg, typeval *rettv, int evaluate)); static int get_list_tv __ARGS((char_u **arg, typeval *rettv, int evaluate)); static listvar *list_alloc __ARGS((void)); static void list_unref __ARGS((listvar *l)); static void list_free __ARGS((listvar *l)); static listitem *listitem_alloc __ARGS((void)); static void listitem_free __ARGS((listitem *item)); static long list_len __ARGS((listvar *l)); static int list_equal __ARGS((listvar *l1, listvar *l2, int ic)); static int tv_equal __ARGS((typeval *tv1, typeval *tv2, int ic)); static listitem *list_find __ARGS((listvar *l, long n)); static listitem *list_find_ext __ARGS((listvar *l, long *ip)); static void list_append __ARGS((listvar *l, listitem *item)); static int list_append_tv __ARGS((listvar *l, typeval *tv)); static int list_insert_tv __ARGS((listvar *l, typeval *tv, listitem *item)); static int list_extend __ARGS((listvar *l1, listvar *l2, listitem *bef)); static int list_concat __ARGS((listvar *l1, listvar *l2, typeval *tv)); static listvar *list_copy __ARGS((listvar *orig, int deep)); static void list_getrem __ARGS((listvar *l, listitem *item, listitem *item2)); static char_u *list2string __ARGS((typeval *tv)); static char_u *tv2string __ARGS((typeval *tv, char_u **tofree, char_u *numbuf)); static int get_env_tv __ARGS((char_u **arg, typeval *rettv, int evaluate)); static int find_internal_func __ARGS((char_u *name)); static char_u *deref_func_name __ARGS((char_u *name, int *lenp)); static int get_func_tv __ARGS((char_u *name, int len, typeval *rettv, char_u **arg, linenr_T firstline, linenr_T lastline, int *doesrange, int evaluate)); static int call_func __ARGS((char_u *name, int len, typeval *rettv, int argcount, typeval *argvars, linenr_T firstline, linenr_T lastline, int *doesrange, int evaluate)); static void f_add __ARGS((typeval *argvars, typeval *rettv)); static void f_append __ARGS((typeval *argvars, typeval *rettv)); static void f_argc __ARGS((typeval *argvars, typeval *rettv)); static void f_argidx __ARGS((typeval *argvars, typeval *rettv)); static void f_argv __ARGS((typeval *argvars, typeval *rettv)); static void f_browse __ARGS((typeval *argvars, typeval *rettv)); static void f_browsedir __ARGS((typeval *argvars, typeval *rettv)); static void f_bufexists __ARGS((typeval *argvars, typeval *rettv)); static void f_buflisted __ARGS((typeval *argvars, typeval *rettv)); static void f_bufloaded __ARGS((typeval *argvars, typeval *rettv)); static void f_bufname __ARGS((typeval *argvars, typeval *rettv)); static void f_bufnr __ARGS((typeval *argvars, typeval *rettv)); static void f_bufwinnr __ARGS((typeval *argvars, typeval *rettv)); static void f_byte2line __ARGS((typeval *argvars, typeval *rettv)); static void f_byteidx __ARGS((typeval *argvars, typeval *rettv)); static void f_call __ARGS((typeval *argvars, typeval *rettv)); static void f_char2nr __ARGS((typeval *argvars, typeval *rettv)); static void f_cindent __ARGS((typeval *argvars, typeval *rettv)); static void f_col __ARGS((typeval *argvars, typeval *rettv)); static void f_confirm __ARGS((typeval *argvars, typeval *rettv)); static void f_copy __ARGS((typeval *argvars, typeval *rettv)); static void f_count __ARGS((typeval *argvars, typeval *rettv)); static void f_cscope_connection __ARGS((typeval *argvars, typeval *rettv)); static void f_cursor __ARGS((typeval *argsvars, typeval *rettv)); static void f_deepcopy __ARGS((typeval *argvars, typeval *rettv)); static void f_delete __ARGS((typeval *argvars, typeval *rettv)); static void f_did_filetype __ARGS((typeval *argvars, typeval *rettv)); static void f_diff_filler __ARGS((typeval *argvars, typeval *rettv)); static void f_diff_hlID __ARGS((typeval *argvars, typeval *rettv)); static void f_escape __ARGS((typeval *argvars, typeval *rettv)); static void f_eventhandler __ARGS((typeval *argvars, typeval *rettv)); static void f_executable __ARGS((typeval *argvars, typeval *rettv)); static void f_exists __ARGS((typeval *argvars, typeval *rettv)); static void f_expand __ARGS((typeval *argvars, typeval *rettv)); static void f_extend __ARGS((typeval *argvars, typeval *rettv)); static void f_filereadable __ARGS((typeval *argvars, typeval *rettv)); static void f_filewritable __ARGS((typeval *argvars, typeval *rettv)); static void f_finddir __ARGS((typeval *argvars, typeval *rettv)); static void f_findfile __ARGS((typeval *argvars, typeval *rettv)); static void f_fnamemodify __ARGS((typeval *argvars, typeval *rettv)); static void f_foldclosed __ARGS((typeval *argvars, typeval *rettv)); static void f_foldclosedend __ARGS((typeval *argvars, typeval *rettv)); static void f_foldlevel __ARGS((typeval *argvars, typeval *rettv)); static void f_foldtext __ARGS((typeval *argvars, typeval *rettv)); static void f_foldtextresult __ARGS((typeval *argvars, typeval *rettv)); static void f_foreground __ARGS((typeval *argvars, typeval *rettv)); static void f_function __ARGS((typeval *argvars, typeval *rettv)); static void f_get __ARGS((typeval *argvars, typeval *rettv)); static void f_getbufvar __ARGS((typeval *argvars, typeval *rettv)); static void f_getchar __ARGS((typeval *argvars, typeval *rettv)); static void f_getcharmod __ARGS((typeval *argvars, typeval *rettv)); static void f_getcmdline __ARGS((typeval *argvars, typeval *rettv)); static void f_getcmdpos __ARGS((typeval *argvars, typeval *rettv)); static void f_getcwd __ARGS((typeval *argvars, typeval *rettv)); static void f_getfontname __ARGS((typeval *argvars, typeval *rettv)); static void f_getfperm __ARGS((typeval *argvars, typeval *rettv)); static void f_getfsize __ARGS((typeval *argvars, typeval *rettv)); static void f_getftime __ARGS((typeval *argvars, typeval *rettv)); static void f_getftype __ARGS((typeval *argvars, typeval *rettv)); static void f_getline __ARGS((typeval *argvars, typeval *rettv)); static void f_getreg __ARGS((typeval *argvars, typeval *rettv)); static void f_getregtype __ARGS((typeval *argvars, typeval *rettv)); static void f_getwinposx __ARGS((typeval *argvars, typeval *rettv)); static void f_getwinposy __ARGS((typeval *argvars, typeval *rettv)); static void f_getwinvar __ARGS((typeval *argvars, typeval *rettv)); static void f_glob __ARGS((typeval *argvars, typeval *rettv)); static void f_globpath __ARGS((typeval *argvars, typeval *rettv)); static void f_has __ARGS((typeval *argvars, typeval *rettv)); static void f_hasmapto __ARGS((typeval *argvars, typeval *rettv)); static void f_histadd __ARGS((typeval *argvars, typeval *rettv)); static void f_histdel __ARGS((typeval *argvars, typeval *rettv)); static void f_histget __ARGS((typeval *argvars, typeval *rettv)); static void f_histnr __ARGS((typeval *argvars, typeval *rettv)); static void f_hlID __ARGS((typeval *argvars, typeval *rettv)); static void f_hlexists __ARGS((typeval *argvars, typeval *rettv)); static void f_hostname __ARGS((typeval *argvars, typeval *rettv)); static void f_iconv __ARGS((typeval *argvars, typeval *rettv)); static void f_indent __ARGS((typeval *argvars, typeval *rettv)); static void f_index __ARGS((typeval *argvars, typeval *rettv)); static void f_input __ARGS((typeval *argvars, typeval *rettv)); static void f_inputdialog __ARGS((typeval *argvars, typeval *rettv)); static void f_inputrestore __ARGS((typeval *argvars, typeval *rettv)); static void f_inputsave __ARGS((typeval *argvars, typeval *rettv)); static void f_inputsecret __ARGS((typeval *argvars, typeval *rettv)); static void f_insert __ARGS((typeval *argvars, typeval *rettv)); static void f_isdirectory __ARGS((typeval *argvars, typeval *rettv)); static void f_last_buffer_nr __ARGS((typeval *argvars, typeval *rettv)); static void f_len __ARGS((typeval *argvars, typeval *rettv)); static void f_libcall __ARGS((typeval *argvars, typeval *rettv)); static void f_libcallnr __ARGS((typeval *argvars, typeval *rettv)); static void f_line __ARGS((typeval *argvars, typeval *rettv)); static void f_line2byte __ARGS((typeval *argvars, typeval *rettv)); static void f_lispindent __ARGS((typeval *argvars, typeval *rettv)); static void f_localtime __ARGS((typeval *argvars, typeval *rettv)); static void f_maparg __ARGS((typeval *argvars, typeval *rettv)); static void f_mapcheck __ARGS((typeval *argvars, typeval *rettv)); static void f_match __ARGS((typeval *argvars, typeval *rettv)); static void f_matchend __ARGS((typeval *argvars, typeval *rettv)); static void f_matchstr __ARGS((typeval *argvars, typeval *rettv)); static void f_mode __ARGS((typeval *argvars, typeval *rettv)); static void f_nextnonblank __ARGS((typeval *argvars, typeval *rettv)); static void f_nr2char __ARGS((typeval *argvars, typeval *rettv)); static void f_prevnonblank __ARGS((typeval *argvars, typeval *rettv)); static void f_remote_expr __ARGS((typeval *argvars, typeval *rettv)); static void f_remote_foreground __ARGS((typeval *argvars, typeval *rettv)); static void f_remote_peek __ARGS((typeval *argvars, typeval *rettv)); static void f_remote_read __ARGS((typeval *argvars, typeval *rettv)); static void f_remote_send __ARGS((typeval *argvars, typeval *rettv)); static void f_remove __ARGS((typeval *argvars, typeval *rettv)); static void f_rename __ARGS((typeval *argvars, typeval *rettv)); static void f_repeat __ARGS((typeval *argvars, typeval *rettv)); static void f_resolve __ARGS((typeval *argvars, typeval *rettv)); static void f_reverse __ARGS((typeval *argvars, typeval *rettv)); static void f_search __ARGS((typeval *argvars, typeval *rettv)); static void f_searchpair __ARGS((typeval *argvars, typeval *rettv)); static void f_server2client __ARGS((typeval *argvars, typeval *rettv)); static void f_serverlist __ARGS((typeval *argvars, typeval *rettv)); static void f_setbufvar __ARGS((typeval *argvars, typeval *rettv)); static void f_setcmdpos __ARGS((typeval *argvars, typeval *rettv)); static void f_setline __ARGS((typeval *argvars, typeval *rettv)); static void f_setreg __ARGS((typeval *argvars, typeval *rettv)); static void f_setwinvar __ARGS((typeval *argvars, typeval *rettv)); static void f_simplify __ARGS((typeval *argvars, typeval *rettv)); static void f_sort __ARGS((typeval *argvars, typeval *rettv)); static void f_str2list __ARGS((typeval *argvars, typeval *rettv)); #ifdef HAVE_STRFTIME static void f_strftime __ARGS((typeval *argvars, typeval *rettv)); #endif static void f_stridx __ARGS((typeval *argvars, typeval *rettv)); static void f_string __ARGS((typeval *argvars, typeval *rettv)); static void f_strlen __ARGS((typeval *argvars, typeval *rettv)); static void f_strpart __ARGS((typeval *argvars, typeval *rettv)); static void f_strridx __ARGS((typeval *argvars, typeval *rettv)); static void f_strtrans __ARGS((typeval *argvars, typeval *rettv)); static void f_submatch __ARGS((typeval *argvars, typeval *rettv)); static void f_substitute __ARGS((typeval *argvars, typeval *rettv)); static void f_synID __ARGS((typeval *argvars, typeval *rettv)); static void f_synIDattr __ARGS((typeval *argvars, typeval *rettv)); static void f_synIDtrans __ARGS((typeval *argvars, typeval *rettv)); static void f_system __ARGS((typeval *argvars, typeval *rettv)); static void f_tempname __ARGS((typeval *argvars, typeval *rettv)); static void f_tolower __ARGS((typeval *argvars, typeval *rettv)); static void f_toupper __ARGS((typeval *argvars, typeval *rettv)); static void f_tr __ARGS((typeval *argvars, typeval *rettv)); static void f_type __ARGS((typeval *argvars, typeval *rettv)); static void f_virtcol __ARGS((typeval *argvars, typeval *rettv)); static void f_visualmode __ARGS((typeval *argvars, typeval *rettv)); static void f_winbufnr __ARGS((typeval *argvars, typeval *rettv)); static void f_wincol __ARGS((typeval *argvars, typeval *rettv)); static void f_winheight __ARGS((typeval *argvars, typeval *rettv)); static void f_winline __ARGS((typeval *argvars, typeval *rettv)); static void f_winnr __ARGS((typeval *argvars, typeval *rettv)); static void f_winrestcmd __ARGS((typeval *argvars, typeval *rettv)); static void f_winwidth __ARGS((typeval *argvars, typeval *rettv)); static win_T *find_win_by_nr __ARGS((typeval *vp)); static pos_T *var2fpos __ARGS((typeval *varp, int lnum)); static int get_env_len __ARGS((char_u **arg)); static int get_id_len __ARGS((char_u **arg)); static int get_func_len __ARGS((char_u **arg, char_u **alias, int evaluate)); static char_u *find_name_end __ARGS((char_u *arg, char_u **expr_start, char_u **expr_end, int incl_br)); static int eval_isnamec __ARGS((int c)); static int find_vim_var __ARGS((char_u *name, int len)); static int get_var_tv __ARGS((char_u *name, int len, typeval *rettv)); static typeval *alloc_tv __ARGS((void)); static typeval *alloc_string_tv __ARGS((char_u *string)); static void free_tv __ARGS((typeval *varp)); static void clear_tv __ARGS((typeval *varp)); static void init_tv __ARGS((typeval *varp)); static long get_tv_number __ARGS((typeval *varp)); static linenr_T get_tv_lnum __ARGS((typeval *argvars)); static char_u *get_tv_string __ARGS((typeval *varp)); static char_u *get_tv_string_buf __ARGS((typeval *varp, char_u *buf)); static VAR find_var __ARGS((char_u *name, int writing)); static VAR find_var_in_ga __ARGS((garray_T *gap, char_u *varname)); static garray_T *find_var_ga __ARGS((char_u *name, char_u **varname)); static void clear_var __ARGS((VAR v)); static void list_one_var __ARGS((VAR v, char_u *prefix)); static void list_vim_var __ARGS((int i)); static void list_one_var_a __ARGS((char_u *prefix, char_u *name, int type, char_u *string)); static void set_var __ARGS((char_u *name, typeval *varp, int copy)); static void copy_tv __ARGS((typeval *from, typeval *to)); static char_u *find_option_end __ARGS((char_u **arg, int *opt_flags)); static char_u *trans_function_name __ARGS((char_u **pp, int skip, int internal)); static int eval_fname_script __ARGS((char_u *p)); static int eval_fname_sid __ARGS((char_u *p)); static void list_func_head __ARGS((ufunc_T *fp, int indent)); static void cat_func_name __ARGS((char_u *buf, ufunc_T *fp)); static ufunc_T *find_func __ARGS((char_u *name)); static int function_exists __ARGS((char_u *name)); static void call_user_func __ARGS((ufunc_T *fp, int argcount, typeval *argvars, typeval *rettv, linenr_T firstline, linenr_T lastline)); #define get_var_string(p) get_tv_string(&(p)->tv) #define get_var_string_buf(p, b) get_tv_string_buf(&(p)->tv, (b)) #define get_var_number(p) get_tv_number(&((p)->tv)) static char_u * make_expanded_name __ARGS((char_u *in_start, char_u *expr_start, char_u *expr_end, char_u *in_end)); static int ex_let_vars __ARGS((char_u *arg, typeval *tv, int copy, int semicolon, int var_count, char_u *nextchars)); static char_u *skip_var_list __ARGS((char_u *arg, int *var_count, int *semicolon)); static char_u *skip_var_one __ARGS((char_u *arg)); static void list_all_vars __ARGS((void)); static char_u *list_arg_vars __ARGS((exarg_T *eap, char_u *arg)); static char_u *ex_let_one __ARGS((char_u *arg, typeval *tv, int copy, char_u *endchars)); static char_u *set_var_idx __ARGS((char_u *name, char_u *ip, typeval *rettv, int copy, char_u *endchars)); static void list_add_watch __ARGS((listvar *l, listwatch *lw)); /* * Set an internal variable to a string value. Creates the variable if it does * not already exist. */ void set_internal_string_var(name, value) char_u *name; char_u *value; { char_u *val; typeval *tvp; val = vim_strsave(value); if (val != NULL) { tvp = alloc_string_tv(val); if (tvp != NULL) { set_var(name, tvp, FALSE); free_tv(tvp); } } } # if defined(FEAT_MBYTE) || defined(PROTO) int eval_charconvert(enc_from, enc_to, fname_from, fname_to) 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 */ { typeval 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(&tv) != 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 */ { typeval 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; { typeval rettv; *pp = skipwhite(*pp); return eval1(pp, &rettv, FALSE); } /* * Top level evaluation function, returning a string. * Return pointer to allocated memory, or NULL for failure. */ char_u * eval_to_string(arg, nextcmd) char_u *arg; char_u **nextcmd; { typeval tv; char_u *retval; if (eval0(arg, &tv, nextcmd, TRUE) == FAIL) retval = NULL; else { retval = vim_strsave(get_tv_string(&tv)); clear_tv(&tv); } return retval; } /* * Call eval_to_string() with "sandbox" set and not using local variables. */ char_u * eval_to_string_safe(arg, nextcmd) char_u *arg; char_u **nextcmd; { char_u *retval; void *save_funccalp; save_funccalp = save_funccal(); ++sandbox; retval = eval_to_string(arg, nextcmd); --sandbox; restore_funccal(save_funccalp); return retval; } #if 0 /* not used */ /* * Top level evaluation function, returning a string. * Advances "arg" to the first non-blank after the evaluated expression. * Return pointer to allocated memory, or NULL for failure. * Doesn't give error messages. */ char_u * eval_arg_to_string(arg) char_u **arg; { typeval rettv; char_u *retval; int ret; ++emsg_off; ret = eval1(arg, &rettv, TRUE); if (ret == FAIL) retval = NULL; else { retval = vim_strsave(get_tv_string(&rettv)); clear_tv(&rettv); } --emsg_off; return retval; } #endif /* * Top level evaluation function, returning a number. * Evaluates "expr" silently. * Returns -1 for an error. */ int eval_to_number(expr) char_u *expr; { typeval rettv; int retval; char_u *p = expr; ++emsg_off; if (eval1(&p, &rettv, TRUE) == FAIL) retval = -1; else { retval = get_tv_number(&rettv); clear_tv(&rettv); } --emsg_off; return retval; } #if (defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)) || defined(PROTO) /* * Call some vimL function and return the result as a string * Uses argv[argc] for the function arguments. */ char_u * call_vim_function(func, argc, argv, safe) char_u *func; int argc; char_u **argv; int safe; /* use the sandbox */ { char_u *retval = NULL; typeval rettv; typeval *argvars; long n; int len; int i; int doesrange; void *save_funccalp = NULL; argvars = (typeval *)alloc((unsigned)(argc * sizeof(typeval))); if (argvars == NULL) return NULL; 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; } /* Recognize a number argument, the others must be strings. */ vim_str2nr(argv[i], NULL, &len, TRUE, TRUE, &n, NULL); 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 */ if (call_func(func, (int)STRLEN(func), &rettv, argc, argvars, curwin->w_cursor.lnum, curwin->w_cursor.lnum, &doesrange, TRUE) == OK) retval = vim_strsave(get_tv_string(&rettv)); clear_tv(&rettv); vim_free(argvars); if (safe) { --sandbox; restore_funccal(save_funccalp); } return retval; } #endif /* * Save the current function call pointer, and set it to NULL. * Used when executing autocommands and for ":source". */ void * save_funccal() { struct funccall *fc; fc = current_funccal; current_funccal = NULL; return (void *)fc; } void restore_funccal(fc) void *fc; { current_funccal = (struct funccall *)fc; } #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; { typeval tv; int retval; char_u *s; ++emsg_off; ++sandbox; *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_UNKNOWN || 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; --sandbox; return retval; } #endif /* * 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); 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, FALSE); 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; } /* * ":let" list all variable values * ":let var1 var2" list variable values * ":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; typeval rettv; int i; int var_count = 0; int semicolon = 0; expr = skip_var_list(arg, &var_count, &semicolon); if (expr == NULL) return; expr = vim_strchr(expr, '='); if (expr == NULL) { if (*arg == '[') EMSG(_(e_invarg)); else if (!ends_excmd(*arg)) /* ":let var1 var2" */ arg = list_arg_vars(eap, arg); else if (!eap->skip) /* ":let" */ list_all_vars(); eap->nextcmd = check_nextcmd(arg); } 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, (char_u *)"="); 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. * Returns OK or FAIL; */ static int ex_let_vars(arg_start, tv, copy, semicolon, var_count, nextchars) char_u *arg_start; typeval *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; /* characters that must follow or NULL */ { char_u *arg = arg_start; listvar *l; int i; listitem *item; typeval ltv; if (*arg != '[') { /* * ":let var = expr" or ":for var in list" */ if (ex_let_one(arg, tv, copy, nextchars) == NULL) return FAIL; return OK; } /* * ":let [v1, v2] = list" or ":for [v1, v2] in listlist" */ l = tv->vval.v_list; if (tv->v_type != VAR_LIST || l == NULL) { EMSG(_(e_listreq)); return FAIL; } i = list_len(l); if (semicolon == 0 && var_count < i) { EMSG(_("E999: Less targets than List items")); return FAIL; } if (var_count - semicolon > i) { EMSG(_("E999: 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 *)",;]"); 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.vval.v_list = l; l->lv_refcount = 1; arg = ex_let_one(skipwhite(arg + 1), <v, FALSE, (char_u *)"]"); 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; while (1) { 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); } static char_u * skip_var_one(arg) char_u *arg; { if (vim_strchr((char_u *)"$@&", *arg) != NULL) ++arg; return find_name_end(arg, NULL, NULL, TRUE); } static void list_all_vars() { int i; /* * List all variables. */ for (i = 0; i < variables.ga_len && !got_int; ++i) if (VAR_ENTRY(i).v_name != NULL) list_one_var(&VAR_ENTRY(i), (char_u *)""); for (i = 0; i < curbuf->b_vars.ga_len && !got_int; ++i) if (BVAR_ENTRY(i).v_name != NULL) list_one_var(&BVAR_ENTRY(i), (char_u *)"b:"); for (i = 0; i < curwin->w_vars.ga_len && !got_int; ++i) if (WVAR_ENTRY(i).v_name != NULL) list_one_var(&WVAR_ENTRY(i), (char_u *)"w:"); for (i = 0; i < VV_LEN && !got_int; ++i) if (vimvars[i].type == VAR_NUMBER || vimvars[i].val != NULL) list_vim_var(i); } /* * List variables in "arg". */ static char_u * list_arg_vars(eap, arg) exarg_T *eap; char_u *arg; { int error = FALSE; char_u *temp_string = NULL; int arg_len; char_u *expr_start; char_u *expr_end; char_u *name_end; int c1 = 0, c2; int i; VAR varp; char_u *name; while (!ends_excmd(*arg) && !got_int) { /* Find the end of the name. */ name_end = find_name_end(arg, &expr_start, &expr_end, FALSE); if (!vim_iswhite(*name_end) && !ends_excmd(*name_end)) { emsg_severe = TRUE; EMSG(_(e_trailing)); break; } if (!error && !eap->skip) { if (expr_start != NULL) { temp_string = make_expanded_name(arg, expr_start, expr_end, name_end); if (temp_string == 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()) { emsg_severe = TRUE; EMSG2(_(e_invarg2), arg); break; } error = TRUE; arg = skipwhite(name_end); continue; } arg = temp_string; arg_len = STRLEN(temp_string); } else { c1 = *name_end; *name_end = NUL; arg_len = (int)(name_end - arg); } i = find_vim_var(arg, arg_len); if (i >= 0) list_vim_var(i); else if (STRCMP("b:changedtick", arg) == 0) { char_u numbuf[NUMBUFLEN]; sprintf((char *)numbuf, "%ld", (long)curbuf->b_changedtick); list_one_var_a((char_u *)"b:", (char_u *)"changedtick", VAR_NUMBER, numbuf); } else { varp = find_var(arg, FALSE); if (varp == NULL) { /* Skip further arguments but do continue to * search for a trailing command. */ EMSG2(_("E106: Unknown variable: \"%s\""), arg); error = TRUE; } else { name = vim_strchr(arg, ':'); if (name != NULL) { /* "a:" vars have no name stored, use whole arg */ if (arg[0] == 'a' && arg[1] == ':') c2 = NUL; else { c2 = *++name; *name = NUL; } list_one_var(varp, arg); if (c2 != NUL) *name = c2; } else list_one_var(varp, (char_u *)""); } } if (expr_start != NULL) vim_free(temp_string); else *name_end = c1; } arg = skipwhite(name_end); } 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) char_u *arg; /* points to variable name */ typeval *tv; /* value to assign to variable */ int copy; /* copy value from "tv" */ char_u *endchars; /* valid chars after variable name or NULL */ { int c1; char_u *name; char_u *p; char_u *arg_end = NULL; int len; int opt_flags; /* * ":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 (endchars != NULL && vim_strchr(endchars, *skipwhite(arg)) == NULL) EMSG(_(e_letunexp)); else { c1 = name[len]; name[len] = NUL; p = get_tv_string(tv); 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; name[len] = c1; arg_end = arg; } } } /* * ":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 { c1 = *p; *p = NUL; set_option_value(arg, get_tv_number(tv), get_tv_string(tv), opt_flags); *p = c1; arg_end = p; } } /* * ":let @r = expr": Set register contents. */ else if (*arg == '@') { ++arg; if (endchars != NULL && vim_strchr(endchars, *skipwhite(arg + 1)) == NULL) EMSG(_(e_letunexp)); else { write_reg_contents(*arg == '@' ? '"' : *arg, get_tv_string(tv), -1, FALSE); arg_end = arg + 1; } } /* * ":let var = expr": Set internal variable. */ else if (eval_isnamec(*arg) && !VIM_ISDIGIT(*arg)) { char_u *exp_name = NULL; char_u *expr_start, *expr_end; /* Find the end of the name. */ p = find_name_end(arg, &expr_start, &expr_end, FALSE); if (expr_start != NULL) { exp_name = make_expanded_name(arg, expr_start, expr_end, p); arg = exp_name; } if (arg == 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()) EMSG2(_(e_invarg2), arg); } else if (*p == '[') arg_end = set_var_idx(arg, p, tv, copy, endchars); else if (endchars != NULL && vim_strchr(endchars, *skipwhite(p)) == NULL) EMSG(_(e_letunexp)); else if (STRNCMP(arg, "b:changedtick", 13) == 0 && !eval_isnamec(arg[13])) EMSG2(_(e_readonlyvar), arg); else { c1 = *p; *p = NUL; set_var(arg, tv, copy); *p = c1; arg_end = p; } vim_free(exp_name); } else EMSG2(_(e_invarg2), arg); return arg_end; } /* * Set a variable with an index: "name[expr]", "name[expr][expr]", etc. * Only works if "name" is an existing List. * "ip" points to the first '['. * Returns a pointer to just after the last used ']'; NULL for error. */ static char_u * set_var_idx(name, ip, rettv, copy, endchars) char_u *name; char_u *ip; typeval *rettv; int copy; char_u *endchars; { VAR v; int c1; char_u *p; typeval var1; typeval *tv; long n; listitem *item; c1 = *ip; *ip = NUL; v = find_var(name, TRUE); if (v == NULL) EMSG2(_(e_undefvar), name); *ip = c1; if (v == NULL) return NULL; tv = &v->tv; for (p = ip; *p == '['; p = skipwhite(p + 1)) { if (tv->v_type != VAR_LIST || tv->vval.v_list == NULL) { EMSG(_("E999: Can only index a List")); p = NULL; break; } p = skipwhite(p + 1); if (eval1(&p, &var1, TRUE) == FAIL) /* recursive! */ { p = NULL; break; } if (*p != ']') { EMSG(_(e_missbrac)); clear_tv(&var1); p = NULL; break; } n = get_tv_number(&var1); clear_tv(&var1); item = list_find(tv->vval.v_list, n); if (item == NULL) { EMSGN(_(e_listidx), n); p = NULL; break; } tv = &item->li_tv; } if (p != NULL) { if (endchars != NULL && vim_strchr(endchars, *p) == NULL) { EMSG(_(e_letunexp)); p = NULL; } else { clear_tv(tv); if (copy) copy_tv(tv, rettv); else { *tv = *rettv; init_tv(rettv); } } } return p; } /* * Add a watcher to a list. */ static void list_add_watch(l, lw) listvar *l; listwatch *lw; { lw->lw_next = l->lv_watch; l->lv_watch = lw; } /* * Remove a watches from a list. * No warning when it isn't found... */ static void list_rem_watch(l, lwrem) listvar *l; listwatch *lwrem; { listwatch *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) listvar *l; listitem *item; { listwatch *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 *fi; char_u *expr; typeval tv; listvar *l; *errp = TRUE; /* default: there is an error */ fi = (forinfo *)alloc_clear(sizeof(forinfo)); 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(_("E999: 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)); else { 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 *fi = (forinfo *)fi_void; int result; listitem *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 *fi = (forinfo *)fi_void; if (fi->fi_list != NULL) list_rem_watch(fi->fi_list, &fi->fi_lw); 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_strchr(arg, '=') == NULL) { /* ":let var1 var2 ...": find last space. */ for (p = arg + STRLEN(arg); p > arg; ) { xp->xp_pattern = p; 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 *)"\"'+-*/%.=!?~|&$([<>,#")) != NULL) { c = *xp->xp_pattern; if (c == '&') { c = xp->xp_pattern[1]; if (c == '&') { ++xp->xp_pattern; xp->xp_context = cmdidx != CMD_let || got_eq ? EXPAND_EXPRESSION : EXPAND_NOTHING; } else if (c != ' ') xp->xp_context = EXPAND_SETTINGS; } else if (c == '$') { /* environment variable */ xp->xp_context = EXPAND_ENV_VARS; } else if (c == '=') { got_eq = TRUE; xp->xp_context = EXPAND_EXPRESSION; } else if (c == '<' && xp->xp_context == EXPAND_FUNCTIONS && vim_strchr(xp->xp_pattern, '(') == NULL) { /* Function name can start with "<SNR>" */ 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 */ { 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 *alias; char_u *name; typeval rettv; int len; linenr_T lnum; int doesrange; int failed = FALSE; name = arg; len = get_func_len(&arg, &alias, !eap->skip); if (len == 0) goto end; if (alias != NULL) name = alias; startarg = arg; rettv.v_type = VAR_UNKNOWN; /* clear_tv() uses this */ if (*startarg != '(') { EMSG2(_("E107: Missing braces: %s"), name); 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; } arg = startarg; if (get_func_tv(name, len, &rettv, &arg, eap->line1, eap->line2, &doesrange, !eap->skip) == 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: if (alias != NULL) vim_free(alias); } /* * ":unlet[!] var1 ... " command. */ void ex_unlet(eap) exarg_T *eap; { char_u *arg = eap->arg; char_u *name_end; char_u cc; char_u *expr_start; char_u *expr_end; int error = FALSE; do { /* Find the end of the name. */ name_end = find_name_end(arg, &expr_start, &expr_end, FALSE); if (!vim_iswhite(*name_end) && !ends_excmd(*name_end)) { emsg_severe = TRUE; EMSG(_(e_trailing)); break; } if (!error && !eap->skip) { if (expr_start != NULL) { char_u *temp_string; temp_string = make_expanded_name(arg, expr_start, expr_end, name_end); if (temp_string == 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()) { emsg_severe = TRUE; EMSG2(_(e_invarg2), arg); break; } error = TRUE; } else { if (do_unlet(temp_string) == FAIL && !eap->forceit) { EMSG2(_("E108: No such variable: \"%s\""), temp_string); error = TRUE; } vim_free(temp_string); } } else { cc = *name_end; *name_end = NUL; if (do_unlet(arg) == FAIL && !eap->forceit) { EMSG2(_("E108: No such variable: \"%s\""), arg); error = TRUE; } *name_end = cc; } } arg = skipwhite(name_end); } while (!ends_excmd(*arg)); eap->nextcmd = check_nextcmd(arg); } /* * "unlet" a variable. Return OK if it existed, FAIL if not. */ int do_unlet(name) char_u *name; { VAR v; v = find_var(name, TRUE); if (v != NULL) { clear_var(v); return OK; } return FAIL; } #if (defined(FEAT_MENU) && defined(FEAT_MULTI_LANG)) || defined(PROTO) /* * Delete all "menutrans_" variables. */ void del_menutrans_vars() { int i; for (i = 0; i < variables.ga_len; ++i) if (VAR_ENTRY(i).v_name != NULL && STRNCMP(VAR_ENTRY(i).v_name, "menutrans_", 10) == 0) clear_var(&VAR_ENTRY(i)); } #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 __ARGS((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. */ /*ARGSUSED*/ char_u * get_user_var_name(xp, idx) expand_T *xp; int idx; { static int gidx; static int bidx; static int widx; static int vidx; char_u *name; if (idx == 0) gidx = bidx = widx = vidx = 0; if (gidx < variables.ga_len) /* Global variables */ { while ((name = VAR_ENTRY(gidx++).v_name) == NULL && gidx < variables.ga_len) /* skip */; if (name != NULL) { if (STRNCMP("g:", xp->xp_pattern, 2) == 0) return cat_prefix_varname('g', name); else return name; } } if (bidx < curbuf->b_vars.ga_len) /* Current buffer variables */ { while ((name = BVAR_ENTRY(bidx++).v_name) == NULL && bidx < curbuf->b_vars.ga_len) /* skip */; if (name != NULL) return cat_prefix_varname('b', name); } if (bidx == curbuf->b_vars.ga_len) { ++bidx; return (char_u *)"b:changedtick"; } if (widx < curwin->w_vars.ga_len) /* Current window variables */ { while ((name = WVAR_ENTRY(widx++).v_name) == NULL && widx < curwin->w_vars.ga_len) /* skip */; if (name != NULL) return cat_prefix_varname('w', name); } if (vidx < VV_LEN) /* Built-in variables */ return cat_prefix_varname('v', (char_u *)vimvars[vidx++].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. * Return OK or FAIL. */ static int eval0(arg, rettv, nextcmd, evaluate) char_u *arg; typeval *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: * expr1 ? expr0 : expr0 * * "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 eval1(arg, rettv, evaluate) char_u **arg; typeval *rettv; int evaluate; { int result; typeval var2; /* * Get the first variable. */ if (eval2(arg, rettv, evaluate) == FAIL) return FAIL; if ((*arg)[0] == '?') { result = FALSE; if (evaluate) { if (get_tv_number(rettv) != 0) result = TRUE; clear_tv(rettv); } /* * 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; typeval *rettv; int evaluate; { typeval var2; long result; int first; /* * 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(rettv) != 0) result = TRUE; clear_tv(rettv); 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(&var2) != 0) result = TRUE; clear_tv(&var2); } 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; typeval *rettv; int evaluate; { typeval var2; long result; int first; /* * 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(rettv) == 0) result = FALSE; clear_tv(rettv); 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(&var2) == 0) result = FALSE; clear_tv(&var2); } 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; typeval *rettv; int evaluate; { typeval 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; if (!vim_isIDc(p[len])) { type = len == 2 ? TYPE_EQUAL : TYPE_NEQUAL; type_is = TRUE; } } break; } /* * If there is a comparitive 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 appened: 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(_("E999: Can only compare List with List")); else EMSG(_("E999: Invalid operation for Lists")); 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); 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(_("E999: Can only compare Funcref with Funcref")); else EMSG(_("E999: 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; } } /* * 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_free(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; typeval *rettv; int evaluate; { typeval var2; typeval var3; int op; long n1, n2; char_u *s1, *s2; char_u buf1[NUMBUFLEN], buf2[NUMBUFLEN]; char_u *p; /* * Get the first variable. */ if (eval6(arg, rettv, evaluate) == FAIL) return FAIL; /* * Repeat computing, until no '+', '-' or '.' is following. */ for (;;) { op = **arg; if (op != '+' && op != '-' && op != '.') break; /* * Get the second variable. */ *arg = skipwhite(*arg + 1); if (eval6(arg, &var2, evaluate) == FAIL) { clear_tv(rettv); return FAIL; } if (evaluate) { /* * Compute the result. */ if (op == '.') { s1 = get_tv_string_buf(rettv, buf1); s2 = get_tv_string_buf(&var2, buf2); op = (int)STRLEN(s1); p = alloc((unsigned)(op + STRLEN(s2) + 1)); if (p != NULL) { STRCPY(p, s1); STRCPY(p + op, s2); } clear_tv(rettv); rettv->v_type = VAR_STRING; rettv->vval.v_string = p; } else if (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 { n1 = get_tv_number(rettv); n2 = get_tv_number(&var2); clear_tv(rettv); 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) char_u **arg; typeval *rettv; int evaluate; { typeval var2; int op; long n1, n2; /* * Get the first variable. */ if (eval7(arg, rettv, evaluate) == FAIL) return FAIL; /* * Repeat computing, until no '*', '/' or '%' is following. */ for (;;) { op = **arg; if (op != '*' && op != '/' && op != '%') break; if (evaluate) { n1 = get_tv_number(rettv); clear_tv(rettv); } else n1 = 0; /* * Get the second variable. */ *arg = skipwhite(*arg + 1); if (eval7(arg, &var2, evaluate) == FAIL) return FAIL; if (evaluate) { n2 = get_tv_number(&var2); clear_tv(&var2); /* * Compute the result. */ if (op == '*') n1 = n1 * n2; else if (op == '/') { if (n2 == 0) /* give an error message? */ 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 contstant * 'string' literal string contstant * &option-name option value * @r register contents * identifier variable value * function() function call * $VAR environment variable * (expression) nested expression * * Also handle: * ! in front logical NOT * - in front unary minus * + in front unary plus (ignored) * trailing [] subscript in String * * "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) char_u **arg; typeval *rettv; int evaluate; { long n; int len; char_u *s; int val; 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': vim_str2nr(*arg, NULL, &len, TRUE, TRUE, &n, NULL); *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: 'string'. */ case '\'': ret = get_lit_string_tv(arg, rettv, evaluate); break; /* * List: [expr, expr] */ case '[': ret = get_list_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, FALSE); } 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; /* * Must be a variable or function name then. */ default: s = *arg; len = get_func_len(arg, &alias, evaluate); 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); /* Invoke the function. */ ret = get_func_tv(s, len, rettv, arg, curwin->w_cursor.lnum, curwin->w_cursor.lnum, &len, evaluate); /* 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); } if (alias != NULL) vim_free(alias); break; } *arg = skipwhite(*arg); /* * Handle expr[expr] and expr[expr:expr] subscript. */ while (**arg == '[' && ret == OK) { if (eval_index(arg, rettv, evaluate) == FAIL) { clear_tv(rettv); return FAIL; } } /* * Apply logical NOT and unary '-', from right to left, ignore '+'. */ if (ret == OK && evaluate && end_leader > start_leader) { val = get_tv_number(rettv); while (end_leader > start_leader) { --end_leader; if (*end_leader == '!') val = !val; else if (*end_leader == '-') val = -val; } clear_tv(rettv); rettv->v_type = VAR_NUMBER; rettv->vval.v_number = val; } return ret; } /* * Evaluate an "[expr]" or "[expr:expr]" index. * "*arg" points to the '['. * Returns FAIL or OK. "*arg" is advanced to after the ']'. */ static int eval_index(arg, rettv, evaluate) char_u **arg; typeval *rettv; int evaluate; { int empty1 = FALSE, empty2 = FALSE; typeval var1, var2; long n1, n2 = 0; long len; int range; char_u *s; if (rettv->v_type == VAR_FUNC) { EMSG(_("E999: Cannot index a Funcref")); return FAIL; } /* * 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; /* * 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! */ { clear_tv(&var1); return FAIL; } } else range = FALSE; /* Check for the ']'. */ if (**arg != ']') { EMSG(_(e_missbrac)); clear_tv(&var1); if (range) clear_tv(&var2); return FAIL; } if (evaluate) { if (empty1) n1 = 0; else { 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)) { EMSGN(_(e_listidx), n1); return FAIL; } if (range) { listvar *l; listitem *item; if (n2 < 0) n2 = len + n2; if (!empty2 && (n2 < 0 || n2 >= len || n2 < n1)) { EMSGN(_(e_listidx), n2); return FAIL; } 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); 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; } } *arg = skipwhite(*arg + 1); /* skip the ']' */ 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; typeval *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; typeval *rettv; int evaluate; { char_u *p; char_u *name; int i; int extra = 0; /* * Find the end of the string, skipping backslashed characters. */ for (p = *arg + 1; *p && *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; i = 0; for (p = *arg + 1; *p && *p != '"'; ++p) { if (*p == '\\') { switch (*++p) { case 'b': name[i++] = BS; break; case 'e': name[i++] = ESC; break; case 'f': name[i++] = FF; break; case 'n': name[i++] = NL; break; case 'r': name[i++] = CAR; break; case 't': name[i++] = TAB; 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 n = 4; nr = 0; while (--n >= 0 && vim_isxdigit(p[1])) { ++p; nr = (nr << 4) + hex2nr(*p); } #ifdef FEAT_MBYTE /* For "\u" store the number according to * 'encoding'. */ if (c != 'X') i += (*mb_char2bytes)(nr, name + i); else #endif name[i++] = nr; } else name[i++] = *p; break; /* octal: "\1", "\12", "\123" */ case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': name[i] = *p - '0'; if (p[1] >= '0' && p[1] <= '7') { ++p; name[i] = (name[i] << 3) + *p - '0'; if (p[1] >= '0' && p[1] <= '7') { ++p; name[i] = (name[i] << 3) + *p - '0'; } } ++i; break; /* Special key, e.g.: "\<C-W>" */ case '<': extra = trans_special(&p, name + i, TRUE); if (extra != 0) { i += extra; --p; break; } /* FALLTHROUGH */ default: name[i++] = *p; break; } } else name[i++] = *p; #ifdef FEAT_MBYTE /* For a multi-byte character copy the bytes after the first one. */ if (has_mbyte) { int l = (*mb_ptr2len_check)(p); while (--l > 0) name[i++] = *++p; } #endif } name[i] = NUL; *arg = p + 1; rettv->v_type = VAR_STRING; rettv->vval.v_string = name; return OK; } /* * Allocate a variable for an backtick-string constant. * Return OK or FAIL. */ static int get_lit_string_tv(arg, rettv, evaluate) char_u **arg; typeval *rettv; int evaluate; { char_u *p; char_u *name; /* * Find the end of the string. */ p = vim_strchr(*arg + 1, '\''); if (p == NULL) { EMSG2(_("E115: Missing quote: %s"), *arg); return FAIL; } if (evaluate) { /* * Copy the string into allocated memory. */ name = vim_strnsave(*arg + 1, (int)(p - (*arg + 1))); if (name == NULL) return FAIL; rettv->v_type = VAR_STRING; rettv->vval.v_string = name; } *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; typeval *rettv; int evaluate; { listvar *l = NULL; typeval tv; listitem *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; list_append(l, item); } } if (**arg == ']') break; if (**arg != ',') { EMSG2(_("E999: Missing comma in list: %s"), *arg); goto failret; } *arg = skipwhite(*arg + 1); } if (**arg != ']') { EMSG2(_("E999: Missing end of list ']': %s"), *arg); failret: if (evaluate) list_free(l); 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. */ static listvar * list_alloc() { return (listvar *)alloc_clear(sizeof(listvar)); } /* * Unreference a list: decrement the reference count and free it when it * becomes zero. */ static void list_unref(l) listvar *l; { if (l != NULL && --l->lv_refcount <= 0) list_free(l); } /* * Free a list, including all items it points to. * Ignores the reference count. */ static void list_free(l) listvar *l; { listitem *item; listitem *next; for (item = l->lv_first; item != NULL; item = next) { next = item->li_next; listitem_free(item); } vim_free(l); } /* * Allocate a list item. */ static listitem * listitem_alloc() { return (listitem *)alloc(sizeof(listitem)); } /* * Free a list item. Also clears the value. Does not notify watchers. */ static void listitem_free(item) listitem *item; { clear_tv(&item->li_tv); vim_free(item); } /* * Get the number of items in a list. */ static long list_len(l) listvar *l; { listitem *item; long len = 0; if (l == NULL) return 0L; for (item = l->lv_first; item != NULL; item = item->li_next) ++len; return len; } /* * Return TRUE when two lists have exactly the same values. */ static int list_equal(l1, l2, ic) listvar *l1; listvar *l2; int ic; /* ignore case for strings */ { listitem *item1, *item2; 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)) return FALSE; return item1 == NULL && item2 == NULL; } /* * Return TRUE if "tv1" and "tv2" have the same value. * Compares the items just like "==" would compare them. */ static int tv_equal(tv1, tv2, ic) typeval *tv1; typeval *tv2; int ic; /* ignore case */ { char_u buf1[NUMBUFLEN], buf2[NUMBUFLEN]; if (tv1->v_type == VAR_LIST || tv2->v_type == VAR_LIST) { /* recursive! */ if (tv1->v_type != tv2->v_type || !list_equal(tv1->vval.v_list, tv2->vval.v_list, ic)) return FALSE; } else if (tv1->v_type == VAR_FUNC || tv2->v_type == VAR_FUNC) { if (tv1->v_type != tv2->v_type || tv1->vval.v_string == NULL || tv2->vval.v_string == NULL || STRCMP(tv1->vval.v_string, tv2->vval.v_string) != 0) return FALSE; } else if (tv1->v_type == VAR_NUMBER || tv2->v_type == VAR_NUMBER) { if (get_tv_number(tv1) != get_tv_number(tv2)) return FALSE; } else if (!ic && STRCMP(get_tv_string_buf(tv1, buf1), get_tv_string_buf(tv2, buf2)) != 0) return FALSE; else if (ic && STRICMP(get_tv_string_buf(tv1, buf1), get_tv_string_buf(tv2, buf2)) != 0) return FALSE; 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. */ static listitem * list_find(l, n) listvar *l; long n; { listitem *item; long idx; if (l == NULL) return NULL; if (n < 0) { idx = -1; /* search from the end */ for (item = l->lv_last; item != NULL && idx > n; item = item->li_prev) --idx; } else { idx = 0; /* search from the start */ for (item = l->lv_first; item != NULL && idx < n; item = item->li_next) ++idx; } if (idx != n) return NULL; return item; } /* * Like list_find(), but also find an item just past the end. * "*ip" is the item to find. * When found "*ip" is set to zero, when not found "*ip" is non-zero. * Returns NULL when item not found or item is just past the end. */ static listitem * list_find_ext(l, ip) listvar *l; long *ip; { long n; listitem *item; if (*ip < 0) { /* Count from the end: -1 is before last item. */ item = l->lv_last; for (n = *ip + 1; n < 0 && item != NULL; ++n) item = item->li_prev; if (item == NULL) n = 1; /* error! */ } else { item = l->lv_first; for (n = *ip; n > 0 && item != NULL; --n) item = item->li_next; } *ip = n; return item; } /* * Append item "item" to the end of list "l". */ static void list_append(l, item) listvar *l; listitem *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; } item->li_next = NULL; } /* * Append typeval "tv" to the end of list "l". * Return FAIL when out of memory. */ static int list_append_tv(l, tv) listvar *l; typeval *tv; { listitem *ni = listitem_alloc(); if (ni == NULL) return FAIL; copy_tv(tv, &ni->li_tv); list_append(l, ni); return OK; } /* * Insert typeval "tv" in list "l" before "item". * If "item" is NULL append at the end. * Return FAIL when out of memory. */ static int list_insert_tv(l, tv, item) listvar *l; typeval *tv; listitem *item; { listitem *ni = listitem_alloc(); if (ni == NULL) return FAIL; copy_tv(tv, &ni->li_tv); 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; else item->li_prev->li_next = ni; item->li_prev = ni; } return OK; } /* * 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) listvar *l1; listvar *l2; listitem *bef; { listitem *item; for (item = l2->lv_first; item != NULL; 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) listvar *l1; listvar *l2; typeval *tv; { listvar *l; /* make a copy of the first list. */ l = list_copy(l1, FALSE); 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 "l". Shallow if "deep" is FALSE. * The refcount of the new list is set to 1. * Returns NULL when out of memory. */ static listvar * list_copy(orig, deep) listvar *orig; int deep; { listvar *copy; listitem *item; listitem *ni; static int recurse = 0; if (orig == NULL) return NULL; if (recurse >= VAR_LIST_MAXNEST) { EMSG(_("E999: List nested too deep for making a copy")); return NULL; } ++recurse; copy = list_alloc(); if (copy != NULL) { for (item = orig->lv_first; item != NULL; item = item->li_next) { ni = listitem_alloc(); if (ni == NULL) break; if (deep && item->li_tv.v_type == VAR_LIST) { ni->li_tv.v_type = VAR_LIST; ni->li_tv.vval.v_list = list_copy(item->li_tv.vval.v_list, TRUE); if (ni->li_tv.vval.v_list == NULL) { vim_free(ni); break; } } else copy_tv(&item->li_tv, &ni->li_tv); list_append(copy, ni); } ++copy->lv_refcount; } --recurse; return copy; } /* * Remove items "item" to "item2" from list "l". */ static void list_getrem(l, item, item2) listvar *l; listitem *item; listitem *item2; { listitem *ip; /* notify watchers */ for (ip = item; ip != NULL; ip = ip->li_next) { 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; } /* * Return an allocated string with the string representation of a list. * May return NULL. */ static char_u * list2string(tv) typeval *tv; { garray_T ga; listitem *item; int first = TRUE; char_u *tofree; char_u *s; char_u numbuf[NUMBUFLEN]; if (tv->vval.v_list == NULL) return NULL; ga_init2(&ga, (int)sizeof(char), 80); ga_append(&ga, '['); for (item = tv->vval.v_list->lv_first; item != NULL; item = item->li_next) { if (first) first = FALSE; else ga_concat(&ga, (char_u *)", "); s = tv2string(&item->li_tv, &tofree, numbuf); if (s != NULL) ga_concat(&ga, s); vim_free(tofree); } ga_append(&ga, ']'); ga_append(&ga, NUL); return (char_u *)ga.ga_data; } /* * 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. * May return NULL; */ static char_u * tv2string(tv, tofree, numbuf) typeval *tv; char_u **tofree; char_u *numbuf; { switch (tv->v_type) { case VAR_FUNC: *tofree = NULL; return tv->vval.v_string; case VAR_LIST: *tofree = list2string(tv); return *tofree; case VAR_STRING: case VAR_NUMBER: break; default: EMSG2(_(e_intern2), "tv2string()"); } *tofree = NULL; return get_tv_string_buf(tv, numbuf); } /* * 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. * Always return OK. */ static int get_env_tv(arg, rettv, evaluate) char_u **arg; typeval *rettv; int evaluate; { char_u *string = NULL; int len; int cc; char_u *name; ++*arg; name = *arg; len = get_env_len(arg); if (evaluate) { if (len != 0) { cc = name[len]; name[len] = NUL; /* first try mch_getenv(), fast for normal environment vars */ string = mch_getenv(name); if (string != NULL && *string != NUL) string = vim_strsave(string); else { /* 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) __ARGS((typeval *args, typeval *rvar)); /* implemenation of function */ } functions[] = { {"add", 2, 2, f_add}, {"append", 2, 2, f_append}, {"argc", 0, 0, f_argc}, {"argidx", 0, 0, f_argidx}, {"argv", 1, 1, f_argv}, {"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, 1, f_bufnr}, {"bufwinnr", 1, 1, f_bufwinnr}, {"byte2line", 1, 1, f_byte2line}, {"byteidx", 2, 2, f_byteidx}, {"call", 2, 2, f_call}, {"char2nr", 1, 1, f_char2nr}, {"cindent", 1, 1, f_cindent}, {"col", 1, 1, f_col}, {"confirm", 1, 4, f_confirm}, {"copy", 1, 1, f_copy}, {"count", 2, 3, f_count}, {"cscope_connection",0,3, f_cscope_connection}, {"cursor", 2, 2, f_cursor}, {"deepcopy", 1, 1, f_deepcopy}, {"delete", 1, 1, f_delete}, {"did_filetype", 0, 0, f_did_filetype}, {"diff_filler", 1, 1, f_diff_filler}, {"diff_hlID", 2, 2, f_diff_hlID}, {"escape", 2, 2, f_escape}, {"eventhandler", 0, 0, f_eventhandler}, {"executable", 1, 1, f_executable}, {"exists", 1, 1, f_exists}, {"expand", 1, 2, f_expand}, {"extend", 2, 3, f_extend}, {"file_readable", 1, 1, f_filereadable}, /* obsolete */ {"filereadable", 1, 1, f_filereadable}, {"filewritable", 1, 1, f_filewritable}, {"finddir", 1, 3, f_finddir}, {"findfile", 1, 3, f_findfile}, {"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}, {"get", 2, 3, f_get}, {"getbufvar", 2, 2, f_getbufvar}, {"getchar", 0, 1, f_getchar}, {"getcharmod", 0, 0, f_getcharmod}, {"getcmdline", 0, 0, f_getcmdline}, {"getcmdpos", 0, 0, f_getcmdpos}, {"getcwd", 0, 0, 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}, {"getreg", 0, 1, f_getreg}, {"getregtype", 0, 1, f_getregtype}, {"getwinposx", 0, 0, f_getwinposx}, {"getwinposy", 0, 0, f_getwinposy}, {"getwinvar", 2, 2, f_getwinvar}, {"glob", 1, 1, f_glob}, {"globpath", 2, 2, f_globpath}, {"has", 1, 1, f_has}, {"hasmapto", 1, 2, 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, 3, f_index}, {"input", 1, 2, f_input}, {"inputdialog", 1, 3, f_inputdialog}, {"inputrestore", 0, 0, f_inputrestore}, {"inputsave", 0, 0, f_inputsave}, {"inputsecret", 1, 2, f_inputsecret}, {"insert", 2, 3, f_insert}, {"isdirectory", 1, 1, f_isdirectory}, {"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}, {"maparg", 1, 2, f_maparg}, {"mapcheck", 1, 2, f_mapcheck}, {"match", 2, 4, f_match}, {"matchend", 2, 4, f_matchend}, {"matchstr", 2, 4, f_matchstr}, {"mode", 0, 0, f_mode}, {"nextnonblank", 1, 1, f_nextnonblank}, {"nr2char", 1, 1, f_nr2char}, {"prevnonblank", 1, 1, f_prevnonblank}, {"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}, {"search", 1, 2, f_search}, {"searchpair", 3, 5, f_searchpair}, {"server2client", 2, 2, f_server2client}, {"serverlist", 0, 0, f_serverlist}, {"setbufvar", 3, 3, f_setbufvar}, {"setcmdpos", 1, 1, f_setcmdpos}, {"setline", 2, 2, f_setline}, {"setreg", 2, 3, f_setreg}, {"setwinvar", 3, 3, f_setwinvar}, {"simplify", 1, 1, f_simplify}, {"sort", 1, 2, f_sort}, {"str2list", 1, 2, f_str2list}, #ifdef HAVE_STRFTIME {"strftime", 1, 2, f_strftime}, #endif {"stridx", 2, 2, f_stridx}, {"string", 1, 1, f_string}, {"strlen", 1, 1, f_strlen}, {"strpart", 2, 3, f_strpart}, {"strridx", 2, 2, f_strridx}, {"strtrans", 1, 1, f_strtrans}, {"submatch", 1, 1, f_submatch}, {"substitute", 4, 4, f_substitute}, {"synID", 3, 3, f_synID}, {"synIDattr", 2, 3, f_synIDattr}, {"synIDtrans", 1, 1, f_synIDtrans}, {"system", 1, 2, f_system}, {"tempname", 0, 0, f_tempname}, {"tolower", 1, 1, f_tolower}, {"toupper", 1, 1, f_toupper}, {"tr", 3, 3, f_tr}, {"type", 1, 1, f_type}, {"virtcol", 1, 1, f_virtcol}, {"visualmode", 0, 1, f_visualmode}, {"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}, {"winwidth", 1, 1, f_winwidth}, }; #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. */ /*ARGSUSED*/ 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 */ /* * 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) char_u *name; int *lenp; { VAR v; int cc; cc = name[*lenp]; name[*lenp] = NUL; v = find_var(name, FALSE); name[*lenp] = cc; if (v != NULL && v->tv.v_type == VAR_FUNC) { if (v->tv.vval.v_string == NULL) { *lenp = 0; return (char_u *)""; /* just in case */ } *lenp = STRLEN(v->tv.vval.v_string); return v->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) char_u *name; /* name of the function */ int len; /* length of "name" */ typeval *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; { char_u *argp; int ret = OK; #define MAX_FUNC_ARGS 20 typeval argvars[MAX_FUNC_ARGS]; /* 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); else if (!aborting()) EMSG2(_("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 OK or FAIL. */ static int call_func(name, len, rettv, argcount, argvars, firstline, lastline, doesrange, evaluate) char_u *name; /* name of the function */ int len; /* length of "name" */ typeval *rettv; /* return value goes here */ int argcount; /* number of "argvars" */ typeval *argvars; /* vars for arguments */ linenr_T firstline; /* first line of range */ linenr_T lastline; /* last line of range */ int *doesrange; /* return: function handled range */ int evaluate; { int ret = FAIL; static char *errors[] = {N_("E117: Unknown function: %s"), N_("E118: Too many arguments for function: %s"), N_("E119: Not enough arguments for function: %s"), N_("E120: Using <SID> not in a script context: %s"), }; #define ERROR_UNKNOWN 0 #define ERROR_TOOMANY 1 #define ERROR_TOOFEW 2 #define ERROR_SCRIPT 3 #define ERROR_NONE 4 #define ERROR_OTHER 5 int error = ERROR_NONE; int i; int llen; ufunc_T *fp; int cc; #define FLEN_FIXED 40 char_u fname_buf[FLEN_FIXED + 1]; char_u *fname; /* * 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). */ cc = name[len]; name[len] = NUL; 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) { rettv->v_type = VAR_NUMBER; /* default is number rettv */ error = ERROR_UNKNOWN; if (!ASCII_ISLOWER(fname[0])) { /* * User defined function. */ fp = find_func(fname); #ifdef FEAT_AUTOCMD if (fp == NULL && apply_autocmds(EVENT_FUNCUNDEFINED, fname, fname, TRUE, NULL) #ifdef FEAT_EVAL && !aborting() #endif ) { /* executed an autocommand, search for function again */ fp = find_func(fname); } #endif if (fp != NULL) { if (fp->flags & FC_RANGE) *doesrange = TRUE; if (argcount < fp->args.ga_len) error = ERROR_TOOFEW; else if (!fp->varargs && argcount > fp->args.ga_len) error = ERROR_TOOMANY; else { /* * Call the user function. * Save and restore search patterns, script variables and * redo buffer. */ save_search_patterns(); saveRedobuff(); ++fp->calls; call_user_func(fp, argcount, argvars, rettv, firstline, lastline); --fp->calls; 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 (error < ERROR_NONE && !aborting()) EMSG2((char_u *)_(errors[error]), name); name[len] = cc; if (fname != name && fname != fname_buf) vim_free(fname); return ret; } /********************************************* * Implementation of the built-in functions */ /* * "add(list, item)" function */ static void f_add(argvars, rettv) typeval *argvars; typeval *rettv; { listvar *l; rettv->vval.v_number = 1; /* Default: Failed */ if (argvars[0].v_type == VAR_LIST) { l = argvars[0].vval.v_list; if (l != NULL && list_append_tv(l, &argvars[1]) == OK) copy_tv(&argvars[0], rettv); } else EMSG(_(e_listreq)); } /* * "append(lnum, string/list)" function */ static void f_append(argvars, rettv) typeval *argvars; typeval *rettv; { long lnum; listvar *l = NULL; listitem *li = NULL; typeval *tv; long added = 0; rettv->vval.v_number = 1; /* Default: Failed */ 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 */ ml_append(lnum + added, get_tv_string(tv), (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; rettv->vval.v_number = 0; /* Success */ } } /* * "argc()" function */ /* ARGSUSED */ static void f_argc(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->vval.v_number = ARGCOUNT; } /* * "argidx()" function */ /* ARGSUSED */ static void f_argidx(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->vval.v_number = curwin->w_arg_idx; } /* * "argv(nr)" function */ static void f_argv(argvars, rettv) typeval *argvars; typeval *rettv; { int idx; idx = get_tv_number(&argvars[0]); 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; } /* * "browse(save, title, initdir, default)" function */ /* ARGSUSED */ static void f_browse(argvars, rettv) typeval *argvars; typeval *rettv; { #ifdef FEAT_BROWSE int save; char_u *title; char_u *initdir; char_u *defname; char_u buf[NUMBUFLEN]; char_u buf2[NUMBUFLEN]; save = get_tv_number(&argvars[0]); title = get_tv_string(&argvars[1]); initdir = get_tv_string_buf(&argvars[2], buf); defname = get_tv_string_buf(&argvars[3], buf2); 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 */ /* ARGSUSED */ static void f_browsedir(argvars, rettv) typeval *argvars; typeval *rettv; { #ifdef FEAT_BROWSE char_u *title; char_u *initdir; char_u buf[NUMBUFLEN]; title = get_tv_string(&argvars[0]); initdir = get_tv_string_buf(&argvars[1], buf); 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 __ARGS((typeval *avar)); /* * Find a buffer by number or exact name. */ static buf_T * find_buffer(avar) typeval *avar; { buf_T *buf = NULL; if (avar->v_type == VAR_NUMBER) buf = buflist_findnr((int)avar->vval.v_number); else if (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) typeval *argvars; typeval *rettv; { rettv->vval.v_number = (find_buffer(&argvars[0]) != NULL); } /* * "buflisted(expr)" function */ static void f_buflisted(argvars, rettv) typeval *argvars; typeval *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) typeval *argvars; typeval *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 __ARGS((typeval *tv)); /* * Get buffer by number or pattern. */ static buf_T * get_buf_tv(tv) typeval *tv; { 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 (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)); 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) typeval *argvars; typeval *rettv; { buf_T *buf; ++emsg_off; buf = get_buf_tv(&argvars[0]); 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) typeval *argvars; typeval *rettv; { buf_T *buf; ++emsg_off; buf = get_buf_tv(&argvars[0]); if (buf != NULL) rettv->vval.v_number = buf->b_fnum; else rettv->vval.v_number = -1; --emsg_off; } /* * "bufwinnr(nr)" function */ static void f_bufwinnr(argvars, rettv) typeval *argvars; typeval *rettv; { #ifdef FEAT_WINDOWS win_T *wp; int winnr = 0; #endif buf_T *buf; ++emsg_off; buf = get_buf_tv(&argvars[0]); #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 */ /*ARGSUSED*/ static void f_byte2line(argvars, rettv) typeval *argvars; typeval *rettv; { #ifndef FEAT_BYTEOFF rettv->vval.v_number = -1; #else long boff = 0; boff = get_tv_number(&argvars[0]) - 1; if (boff < 0) rettv->vval.v_number = -1; else rettv->vval.v_number = ml_find_line_or_offset(curbuf, (linenr_T)0, &boff); #endif } /* * "byteidx()" function */ /*ARGSUSED*/ static void f_byteidx(argvars, rettv) typeval *argvars; typeval *rettv; { #ifdef FEAT_MBYTE char_u *t; #endif char_u *str; long idx; str = get_tv_string(&argvars[0]); idx = get_tv_number(&argvars[1]); rettv->vval.v_number = -1; if (idx < 0) return; #ifdef FEAT_MBYTE t = str; for ( ; idx > 0; idx--) { if (*t == NUL) /* EOL reached */ return; t += mb_ptr2len_check(t); } rettv->vval.v_number = t - str; #else if (idx <= STRLEN(str)) rettv->vval.v_number = idx; #endif } /* * "call(func, arglist)" function */ static void f_call(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *func; typeval argv[MAX_FUNC_ARGS]; int argc = 0; listitem *item; int dummy; rettv->vval.v_number = 0; 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]); for (item = argvars[1].vval.v_list->lv_first; item != NULL; item = item->li_next) { if (argc == MAX_FUNC_ARGS) { EMSG(_("E999: Too many arguments")); break; } /* Make a copy of each argument (is this really needed?) */ copy_tv(&item->li_tv, &argv[argc++]); } if (item == NULL) (void)call_func(func, STRLEN(func), rettv, argc, argv, curwin->w_cursor.lnum, curwin->w_cursor.lnum, &dummy, TRUE); /* Free the arguments. */ while (argc > 0) clear_tv(&argv[--argc]); } /* * "char2nr(string)" function */ static void f_char2nr(argvars, rettv) typeval *argvars; typeval *rettv; { #ifdef FEAT_MBYTE if (has_mbyte) 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) typeval *argvars; typeval *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; } /* * "col(string)" function */ static void f_col(argvars, rettv) typeval *argvars; typeval *rettv; { colnr_T col = 0; pos_T *fp; fp = var2fpos(&argvars[0], FALSE); if (fp != NULL) { if (fp->col == MAXCOL) { /* '> can be MAXCOL, get the length of the line then */ if (fp->lnum <= curbuf->b_ml.ml_line_count) col = 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_check)(p))] == NUL) col += l; # else if (*p != NUL && p[1] == NUL) ++col; # endif } } #endif } } rettv->vval.v_number = col; } /* * "confirm(message, buttons[, default [, type]])" function */ /*ARGSUSED*/ static void f_confirm(argvars, rettv) typeval *argvars; typeval *rettv; { #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; int c; message = get_tv_string(&argvars[0]); if (argvars[1].v_type != VAR_UNKNOWN) { buttons = get_tv_string_buf(&argvars[1], buf); if (argvars[2].v_type != VAR_UNKNOWN) { def = get_tv_number(&argvars[2]); if (argvars[3].v_type != VAR_UNKNOWN) { /* avoid that TOUPPER_ASC calls get_var_string_buf() twice */ c = *get_tv_string_buf(&argvars[3], buf2); switch (TOUPPER_ASC(c)) { 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"); rettv->vval.v_number = do_dialog(type, NULL, message, buttons, def, NULL); #else rettv->vval.v_number = 0; #endif } /* * "copy()" function */ static void f_copy(argvars, rettv) typeval *argvars; typeval *rettv; { if (argvars[0].v_type == VAR_LIST) { rettv->v_type = VAR_LIST; rettv->vval.v_list = list_copy(argvars[0].vval.v_list, FALSE); } else copy_tv(&argvars[0], rettv); } /* * "count()" function */ static void f_count(argvars, rettv) typeval *argvars; typeval *rettv; { listitem *li; long n = 0; int ic = FALSE; if (argvars[0].v_type != VAR_LIST) EMSG(_(e_listreq)); else if (argvars[0].vval.v_list != NULL) { if (argvars[2].v_type != VAR_UNKNOWN) ic = get_tv_number(&argvars[2]); for (li = argvars[0].vval.v_list->lv_first; li != NULL; li = li->li_next) if (tv_equal(&li->li_tv, &argvars[1], ic)) ++n; } rettv->vval.v_number = n; } /* * "cscope_connection([{num} , {dbpath} [, {prepend}]])" function * * Checks the existence of a cscope connection. */ /*ARGSUSED*/ static void f_cscope_connection(argvars, rettv) typeval *argvars; typeval *rettv; { #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); #else rettv->vval.v_number = 0; #endif } /* * "cursor(lnum, col)" function * * Moves the cursor to the specified line and column */ /*ARGSUSED*/ static void f_cursor(argvars, rettv) typeval *argvars; typeval *rettv; { long line, col; line = get_tv_lnum(argvars); if (line > 0) curwin->w_cursor.lnum = line; col = get_tv_number(&argvars[1]); if (col > 0) curwin->w_cursor.col = col - 1; #ifdef FEAT_VIRTUALEDIT curwin->w_cursor.coladd = 0; #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 = TRUE; } /* * "deepcopy()" function */ static void f_deepcopy(argvars, rettv) typeval *argvars; typeval *rettv; { if (argvars[0].v_type == VAR_LIST) { rettv->v_type = VAR_LIST; rettv->vval.v_list = list_copy(argvars[0].vval.v_list, TRUE); } else copy_tv(&argvars[0], rettv); } /* * "delete()" function */ static void f_delete(argvars, rettv) typeval *argvars; typeval *rettv; { if (check_restricted() || check_secure()) rettv->vval.v_number = -1; else rettv->vval.v_number = mch_remove(get_tv_string(&argvars[0])); } /* * "did_filetype()" function */ /*ARGSUSED*/ static void f_did_filetype(argvars, rettv) typeval *argvars; typeval *rettv; { #ifdef FEAT_AUTOCMD rettv->vval.v_number = did_filetype; #else rettv->vval.v_number = 0; #endif } /* * "diff_filler()" function */ /*ARGSUSED*/ static void f_diff_filler(argvars, rettv) typeval *argvars; typeval *rettv; { #ifdef FEAT_DIFF rettv->vval.v_number = diff_check_fill(curwin, get_tv_lnum(argvars)); #endif } /* * "diff_hlID()" function */ /*ARGSUSED*/ static void f_diff_hlID(argvars, rettv) typeval *argvars; typeval *rettv; { #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 enum hlf_value hlID = 0; int filler_lines; int col; 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 = (enum hlf_value)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; if (col >= change_start && col <= change_end) hlID = HLF_TXD; /* changed text */ else hlID = HLF_CHD; /* changed line */ } rettv->vval.v_number = hlID == (enum hlf_value)0 ? 0 : (int)hlID; #endif } /* * "escape({string}, {chars})" function */ static void f_escape(argvars, rettv) typeval *argvars; typeval *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; } /* * "eventhandler()" function */ /*ARGSUSED*/ static void f_eventhandler(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->vval.v_number = vgetc_busy; } /* * "executable()" function */ static void f_executable(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->vval.v_number = mch_can_exe(get_tv_string(&argvars[0])); } /* * "exists()" function */ static void f_exists(argvars, rettv) typeval *argvars; typeval *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); 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 name = p + 1; p = vim_strchr(name, '#'); if (p != NULL) n = au_exists(name, p, p + 1); else n = au_exists(name, name + STRLEN(name), NULL); #endif } else /* internal variable */ { char_u *expr_start; char_u *expr_end; char_u *temp_string = NULL; char_u *s; name = p; /* Find the end of the name. */ s = find_name_end(name, &expr_start, &expr_end, FALSE); if (expr_start != NULL) { temp_string = make_expanded_name(name, expr_start, expr_end, s); if (temp_string != NULL) { len = STRLEN(temp_string); name = temp_string; } } if (len == 0) len = get_id_len(&p); if (len != 0) n = (get_var_tv(name, len, NULL) == OK); vim_free(temp_string); } rettv->vval.v_number = n; } /* * "expand()" function */ static void f_expand(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *s; int len; char_u *errormsg; int flags = WILD_SILENT|WILD_USE_NL|WILD_LIST_NOTFOUND; expand_T xpc; rettv->v_type = VAR_STRING; s = get_tv_string(&argvars[0]); if (*s == '%' || *s == '#' || *s == '<') { ++emsg_off; rettv->vval.v_string = eval_vars(s, &len, NULL, &errormsg, s); --emsg_off; } else { /* When the optional second argument is non-zero, don't remove matches * for 'suffixes' and 'wildignore' */ if (argvars[1].v_type != VAR_UNKNOWN && get_tv_number(&argvars[1])) flags |= WILD_KEEP_ALL; ExpandInit(&xpc); xpc.xp_context = EXPAND_FILES; rettv->vval.v_string = ExpandOne(&xpc, s, NULL, flags, WILD_ALL); ExpandCleanup(&xpc); } } /* * "extend(list, list [, idx])" function */ static void f_extend(argvars, rettv) typeval *argvars; typeval *rettv; { long before; long n; listitem *item; listvar *l1, *l2; rettv->vval.v_number = 0; if (argvars[0].v_type != VAR_LIST || argvars[1].v_type != VAR_LIST) { EMSG(_(e_listreq)); return; } l1 = argvars[0].vval.v_list; l2 = argvars[1].vval.v_list; if (l1 != NULL && l2 != NULL) { if (argvars[2].v_type != VAR_UNKNOWN) { n = before = get_tv_number(&argvars[2]); item = list_find_ext(l1, &n); if (n != 0) { EMSGN(_(e_listidx), before); return; } } else item = NULL; list_extend(l1, l2, item); ++l1->lv_refcount; copy_tv(&argvars[0], rettv); } } /* * "filereadable()" function */ static void f_filereadable(argvars, rettv) typeval *argvars; typeval *rettv; { FILE *fd; char_u *p; int n; p = get_tv_string(&argvars[0]); if (*p && !mch_isdir(p) && (fd = mch_fopen((char *)p, "r")) != NULL) { n = TRUE; fclose(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) typeval *argvars; typeval *rettv; { char_u *p; int retval = 0; #if defined(UNIX) || defined(VMS) int perm = 0; #endif p = get_tv_string(&argvars[0]); #if defined(UNIX) || defined(VMS) perm = mch_getperm(p); #endif #ifndef MACOS_CLASSIC /* TODO: get either mch_writable or mch_access */ if ( # ifdef WIN3264 mch_writable(p) && # else # if defined(UNIX) || defined(VMS) (perm & 0222) && # endif # endif mch_access((char *)p, W_OK) == 0 ) #endif { ++retval; if (mch_isdir(p)) ++retval; } rettv->vval.v_number = retval; } static void findfilendir __ARGS((typeval *argvars, typeval *rettv, int dir)); static void findfilendir(argvars, rettv, dir) typeval *argvars; typeval *rettv; int dir; { #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; fname = get_tv_string(&argvars[0]); if (argvars[1].v_type != VAR_UNKNOWN) { p = get_tv_string_buf(&argvars[1], pathbuf); if (*p != NUL) path = p; if (argvars[2].v_type != VAR_UNKNOWN) count = get_tv_number(&argvars[2]); } do { vim_free(fresult); fresult = find_file_in_path_option(first ? fname : NULL, first ? (int)STRLEN(fname) : 0, 0, first, path, dir, NULL); first = FALSE; } while (--count > 0 && fresult != NULL); rettv->vval.v_string = fresult; #else rettv->vval.v_string = NULL; #endif rettv->v_type = VAR_STRING; } /* * "finddir({fname}[, {path}[, {count}]])" function */ static void f_finddir(argvars, rettv) typeval *argvars; typeval *rettv; { findfilendir(argvars, rettv, TRUE); } /* * "findfile({fname}[, {path}[, {count}]])" function */ static void f_findfile(argvars, rettv) typeval *argvars; typeval *rettv; { findfilendir(argvars, rettv, FALSE); } /* * "fnamemodify({fname}, {mods})" function */ static void f_fnamemodify(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *fname; char_u *mods; int usedlen = 0; int len; char_u *fbuf = NULL; char_u buf[NUMBUFLEN]; fname = get_tv_string(&argvars[0]); mods = get_tv_string_buf(&argvars[1], buf); 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 __ARGS((typeval *argvars, typeval *rettv, int end)); /* * "foldclosed()" function */ static void foldclosed_both(argvars, rettv, end) typeval *argvars; typeval *rettv; int end; { #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) typeval *argvars; typeval *rettv; { foldclosed_both(argvars, rettv, FALSE); } /* * "foldclosedend()" function */ static void f_foldclosedend(argvars, rettv) typeval *argvars; typeval *rettv; { foldclosed_both(argvars, rettv, TRUE); } /* * "foldlevel()" function */ static void f_foldlevel(argvars, rettv) typeval *argvars; typeval *rettv; { #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); else #endif rettv->vval.v_number = 0; } /* * "foldtext()" function */ /*ARGSUSED*/ static void f_foldtext(argvars, rettv) typeval *argvars; typeval *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].val > 0 && (linenr_T)vimvars[VV_FOLDEND].val <= curbuf->b_ml.ml_line_count && vimvars[VV_FOLDDASHES].val != NULL) { /* Find first non-empty line in the fold. */ lnum = (linenr_T)vimvars[VV_FOLDSTART].val; while (lnum < (linenr_T)vimvars[VV_FOLDEND].val) { 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].val) { 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].val) /* for %s */ + 20 /* for %3ld */ + STRLEN(s))); /* concatenated */ if (r != NULL) { sprintf((char *)r, txt, vimvars[VV_FOLDDASHES].val, (long)((linenr_T)vimvars[VV_FOLDEND].val - (linenr_T)vimvars[VV_FOLDSTART].val + 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 */ /*ARGSUSED*/ static void f_foldtextresult(argvars, rettv) typeval *argvars; typeval *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); 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 */ /*ARGSUSED*/ static void f_foreground(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->vval.v_number = 0; #ifdef FEAT_GUI if (gui.in_use) gui_mch_set_foreground(); #else # ifdef WIN32 win32_set_foreground(); # endif #endif } /* * "function()" function */ /*ARGSUSED*/ static void f_function(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *s; s = get_tv_string(&argvars[0]); if (s == NULL || *s == NUL || isdigit(*s)) EMSG2(_(e_invarg2), s); else if (!function_exists(s)) EMSG2(_("E999: Unknown function: %s"), s); else { rettv->vval.v_string = vim_strsave(s); rettv->v_type = VAR_FUNC; } } /* * "get()" function */ static void f_get(argvars, rettv) typeval *argvars; typeval *rettv; { listitem *item; listvar *l; if (argvars[0].v_type != VAR_LIST) EMSG2(_(e_listarg), "get()"); else if ((l = argvars[0].vval.v_list) != NULL) { item = list_find(l, get_tv_number(&argvars[1])); if (item == NULL) { if (argvars[2].v_type == VAR_UNKNOWN) rettv->vval.v_number = 0; else copy_tv(&argvars[2], rettv); } else copy_tv(&item->li_tv, rettv); } } /* * "getbufvar()" function */ static void f_getbufvar(argvars, rettv) typeval *argvars; typeval *rettv; { buf_T *buf; buf_T *save_curbuf; char_u *varname; VAR v; ++emsg_off; buf = get_buf_tv(&argvars[0]); varname = get_tv_string(&argvars[1]); rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; if (buf != NULL && varname != NULL) { if (*varname == '&') /* buffer-local-option */ { /* set curbuf to be our buf, temporarily */ save_curbuf = curbuf; curbuf = buf; get_option_tv(&varname, rettv, TRUE); /* restore previous notion of curbuf */ curbuf = save_curbuf; } else { /* look up the variable */ v = find_var_in_ga(&buf->b_vars, varname); if (v != NULL) copy_tv(&v->tv, rettv); } } --emsg_off; } /* * "getchar()" function */ static void f_getchar(argvars, rettv) typeval *argvars; typeval *rettv; { varnumber_T n; ++no_mapping; ++allow_keys; if (argvars[0].v_type == VAR_UNKNOWN) /* getchar(): blocking wait. */ n = safe_vgetc(); else if (get_tv_number(&argvars[0]) == 1) /* getchar(1): only check if char avail */ n = vpeekc(); else if (vpeekc() == NUL) /* getchar(0) and no char avail: return zero */ n = 0; else /* getchar(0) and char avail: return char */ n = safe_vgetc(); --no_mapping; --allow_keys; 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); } } /* * "getcharmod()" function */ /*ARGSUSED*/ static void f_getcharmod(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->vval.v_number = mod_mask; } /* * "getcmdline()" function */ /*ARGSUSED*/ static void f_getcmdline(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = get_cmdline_str(); } /* * "getcmdpos()" function */ /*ARGSUSED*/ static void f_getcmdpos(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->vval.v_number = get_cmdline_pos() + 1; } /* * "getcwd()" function */ /*ARGSUSED*/ static void f_getcwd(argvars, rettv) typeval *argvars; typeval *rettv; { char_u cwd[MAXPATHL]; rettv->v_type = VAR_STRING; if (mch_dirname(cwd, MAXPATHL) == FAIL) rettv->vval.v_string = NULL; else { rettv->vval.v_string = vim_strsave(cwd); #ifdef BACKSLASH_IN_FILENAME slash_adjust(rettv->vval.v_string); #endif } } /* * "getfontname()" function */ /*ARGSUSED*/ static void f_getfontname(argvars, rettv) typeval *argvars; typeval *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) typeval *argvars; typeval *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) typeval *argvars; typeval *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; } else rettv->vval.v_number = -1; } /* * "getftime({fname})" function */ static void f_getftime(argvars, rettv) typeval *argvars; typeval *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) typeval *argvars; typeval *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)" function */ static void f_getline(argvars, rettv) typeval *argvars; typeval *rettv; { linenr_T lnum; linenr_T end; char_u *p; listvar *l; listitem *li; lnum = get_tv_lnum(argvars); if (argvars[1].v_type == VAR_UNKNOWN) { if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) p = ml_get(lnum); else p = (char_u *)""; rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_strsave(p); } else { end = get_tv_lnum(&argvars[1]); if (end < lnum) { EMSG(_(e_invrange)); rettv->vval.v_number = 0; } else { l = list_alloc(); if (l != NULL) { if (lnum < 1) lnum = 1; if (end > curbuf->b_ml.ml_line_count) end = curbuf->b_ml.ml_line_count; while (lnum <= end) { li = listitem_alloc(); if (li == NULL) break; list_append(l, li); li->li_tv.v_type = VAR_STRING; li->li_tv.vval.v_string = vim_strsave(ml_get(lnum++)); } rettv->vval.v_list = l; rettv->v_type = VAR_LIST; ++l->lv_refcount; } } } } /* * "getreg()" function */ static void f_getreg(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *strregname; int regname; if (argvars[0].v_type != VAR_UNKNOWN) strregname = get_tv_string(&argvars[0]); else strregname = vimvars[VV_REG].val; regname = (strregname == NULL ? '"' : *strregname); if (regname == 0) regname = '"'; rettv->v_type = VAR_STRING; rettv->vval.v_string = get_reg_contents(regname, TRUE); } /* * "getregtype()" function */ static void f_getregtype(argvars, rettv) typeval *argvars; typeval *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(&argvars[0]); else /* Default to v:register */ strregname = vimvars[VV_REG].val; 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; #ifdef FEAT_VISUAL case MBLOCK: buf[0] = Ctrl_V; sprintf((char *)buf + 1, "%ld", reglen + 1); break; #endif } rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_strsave(buf); } /* * "getwinposx()" function */ /*ARGSUSED*/ static void f_getwinposx(argvars, rettv) typeval *argvars; typeval *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 */ /*ARGSUSED*/ static void f_getwinposy(argvars, rettv) typeval *argvars; typeval *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 } /* * "getwinvar()" function */ static void f_getwinvar(argvars, rettv) typeval *argvars; typeval *rettv; { win_T *win, *oldcurwin; char_u *varname; VAR v; ++emsg_off; win = find_win_by_nr(&argvars[0]); varname = get_tv_string(&argvars[1]); rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; if (win != NULL && varname != NULL) { if (*varname == '&') /* window-local-option */ { /* set curwin to be our win, temporarily */ oldcurwin = curwin; curwin = win; get_option_tv(&varname, rettv, 1); /* restore previous notion of curwin */ curwin = oldcurwin; } else { /* look up the variable */ v = find_var_in_ga(&win->w_vars, varname); if (v != NULL) copy_tv(&v->tv, rettv); } } --emsg_off; } /* * "glob()" function */ static void f_glob(argvars, rettv) typeval *argvars; typeval *rettv; { expand_T xpc; ExpandInit(&xpc); xpc.xp_context = EXPAND_FILES; rettv->v_type = VAR_STRING; rettv->vval.v_string = ExpandOne(&xpc, get_tv_string(&argvars[0]), NULL, WILD_USE_NL|WILD_SILENT, WILD_ALL); ExpandCleanup(&xpc); } /* * "globpath()" function */ static void f_globpath(argvars, rettv) typeval *argvars; typeval *rettv; { char_u buf1[NUMBUFLEN]; rettv->v_type = VAR_STRING; rettv->vval.v_string = globpath(get_tv_string(&argvars[0]), get_tv_string_buf(&argvars[1], buf1)); } /* * "has()" function */ static void f_has(argvars, rettv) typeval *argvars; typeval *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 /* TODO: Should we add MACOS_CLASSIC, MACOS_X? (Dany) */ "mac", #endif #if defined(MACOS_X_UNIX) "macunix", #endif #ifdef OS2 "os2", #endif #ifdef __QNX__ "qnx", #endif #ifdef RISCOS "riscos", #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 #ifdef WIN64 "win64", #endif #ifdef EBCDIC "ebcdic", #endif #ifndef CASE_INSENSITIVE_FILENAME "fname_case", #endif #ifdef FEAT_ARABIC "arabic", #endif #ifdef FEAT_AUTOCMD "autocmd", #endif #ifdef FEAT_BEVAL "balloon_eval", #endif #if defined(SOME_BUILTIN_TCAPS) || defined(ALL_BUILTIN_TCAPS) "builtin_terms", # ifdef ALL_BUILTIN_TCAPS "all_builtin_terms", # endif #endif #ifdef FEAT_BYTEOFF "byte_offset", #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_CRYPT "cryptv", #endif #ifdef FEAT_CSCOPE "cscope", #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_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_FIND_ID "find_in_path", #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_KDE "gui_kde", #endif #ifdef FEAT_GUI_GTK "gui_gtk", # ifdef HAVE_GTK2 "gui_gtk2", # endif #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_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_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 "mzscheme", #endif #ifdef FEAT_OLE "ole", #endif #ifdef FEAT_OSFILETYPE "osfiletype", #endif #ifdef FEAT_PATH_EXTRA "path_extra", #endif #ifdef FEAT_PERL #ifndef DYNAMIC_PERL "perl", #endif #endif #ifdef FEAT_PYTHON #ifndef DYNAMIC_PYTHON "python", #endif #endif #ifdef FEAT_POSTSCRIPT "postscript", #endif #ifdef FEAT_PRINTER "printer", #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 FEAT_STL_OPT "statusline", #endif #ifdef FEAT_SUN_WORKSHOP "sun_workshop", #endif #ifdef FEAT_NETBEANS_INTG "netbeans_intg", #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 #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 #ifdef FEAT_VISUAL "visual", #endif #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 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) n = has_patch(atoi((char *)name + 5)); else if (STRICMP(name, "vim_starting") == 0) n = (starting != 0); #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_RUBY else if (STRICMP(name, "ruby") == 0) n = ruby_enabled(FALSE); #endif #ifdef DYNAMIC_PYTHON else if (STRICMP(name, "python") == 0) n = python_enabled(FALSE); #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(curbuf); #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 = usingNetbeans; #endif } rettv->vval.v_number = n; } /* * "hasmapto()" function */ static void f_hasmapto(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *name; char_u *mode; char_u buf[NUMBUFLEN]; 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 (map_to_exists(name, mode)) rettv->vval.v_number = TRUE; else rettv->vval.v_number = FALSE; } /* * "histadd()" function */ /*ARGSUSED*/ static void f_histadd(argvars, rettv) typeval *argvars; typeval *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 histype = get_histtype(get_tv_string(&argvars[0])); if (histype >= 0) { str = get_tv_string_buf(&argvars[1], buf); if (*str != NUL) { add_to_history(histype, str, FALSE, NUL); rettv->vval.v_number = TRUE; return; } } #endif } /* * "histdel()" function */ /*ARGSUSED*/ static void f_histdel(argvars, rettv) typeval *argvars; typeval *rettv; { #ifdef FEAT_CMDHIST int n; char_u buf[NUMBUFLEN]; if (argvars[1].v_type == VAR_UNKNOWN) /* only one argument: clear entire history */ n = clr_history(get_histtype(get_tv_string(&argvars[0]))); else if (argvars[1].v_type == VAR_NUMBER) /* index given: remove that entry */ n = del_history_idx(get_histtype(get_tv_string(&argvars[0])), (int)get_tv_number(&argvars[1])); else /* string given: remove all matching entries */ n = del_history_entry(get_histtype(get_tv_string(&argvars[0])), get_tv_string_buf(&argvars[1], buf)); rettv->vval.v_number = n; #else rettv->vval.v_number = 0; #endif } /* * "histget()" function */ /*ARGSUSED*/ static void f_histget(argvars, rettv) typeval *argvars; typeval *rettv; { #ifdef FEAT_CMDHIST int type; int idx; type = get_histtype(get_tv_string(&argvars[0])); if (argvars[1].v_type == VAR_UNKNOWN) idx = get_history_idx(type); else idx = (int)get_tv_number(&argvars[1]); 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 */ /*ARGSUSED*/ static void f_histnr(argvars, rettv) typeval *argvars; typeval *rettv; { int i; #ifdef FEAT_CMDHIST i = get_histtype(get_tv_string(&argvars[0])); 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) typeval *argvars; typeval *rettv; { rettv->vval.v_number = syn_name2id(get_tv_string(&argvars[0])); } /* * "highlight_exists()" function */ static void f_hlexists(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->vval.v_number = highlight_exists(get_tv_string(&argvars[0])); } /* * "hostname()" function */ /*ARGSUSED*/ static void f_hostname(argvars, rettv) typeval *argvars; typeval *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 */ /*ARGSUSED*/ static void f_iconv(argvars, rettv) typeval *argvars; typeval *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) typeval *argvars; typeval *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) typeval *argvars; typeval *rettv; { listvar *l; listitem *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) { if (argvars[2].v_type != VAR_UNKNOWN) ic = get_tv_number(&argvars[2]); for (item = l->lv_first; item != NULL; item = item->li_next, ++idx) if (tv_equal(&item->li_tv, &argvars[1], ic)) { rettv->vval.v_number = idx; break; } } } static int inputsecret_flag = 0; /* * "input()" function * Also handles inputsecret() when inputsecret is set. */ static void f_input(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *prompt = get_tv_string(&argvars[0]); char_u *p = NULL; int c; char_u buf[NUMBUFLEN]; int cmd_silent_save = cmd_silent; rettv->v_type = VAR_STRING; #ifdef NO_CONSOLE_INPUT /* While starting up, there is no place to enter text. */ if (no_console_input()) { rettv->vval.v_string = NULL; 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) stuffReadbuffSpec(get_tv_string_buf(&argvars[1], buf)); rettv->vval.v_string = getcmdline_prompt(inputsecret_flag ? NUL : '@', p, echo_attr); /* since the user typed this, no need to wait for return */ need_wait_return = FALSE; msg_didout = FALSE; cmd_silent = cmd_silent_save; } /* * "inputdialog()" function */ static void f_inputdialog(argvars, rettv) typeval *argvars; typeval *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]; message = get_tv_string(&argvars[0]); if (argvars[1].v_type != VAR_UNKNOWN) { STRNCPY(IObuff, get_tv_string_buf(&argvars[1], buf), IOSIZE); IObuff[IOSIZE - 1] = NUL; } else IObuff[0] = NUL; if (do_dialog(VIM_QUESTION, NULL, message, (char_u *)_("&OK\n&Cancel"), 1, IObuff) == 1) rettv->vval.v_string = vim_strsave(IObuff); else { if (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 f_input(argvars, rettv); } static garray_T ga_userinput = {0, 0, sizeof(tasave_T), 4, NULL}; /* * "inputrestore()" function */ /*ARGSUSED*/ static void f_inputrestore(argvars, rettv) typeval *argvars; typeval *rettv; { if (ga_userinput.ga_len > 0) { --ga_userinput.ga_len; restore_typeahead((tasave_T *)(ga_userinput.ga_data) + ga_userinput.ga_len); rettv->vval.v_number = 0; /* OK */ } else if (p_verbose > 1) { msg((char_u *)_("called inputrestore() more often than inputsave()")); rettv->vval.v_number = 1; /* Failed */ } } /* * "inputsave()" function */ /*ARGSUSED*/ static void f_inputsave(argvars, rettv) typeval *argvars; typeval *rettv; { /* Add an entry to the stack of typehead storage. */ if (ga_grow(&ga_userinput, 1) == OK) { save_typeahead((tasave_T *)(ga_userinput.ga_data) + ga_userinput.ga_len); ++ga_userinput.ga_len; rettv->vval.v_number = 0; /* OK */ } else rettv->vval.v_number = 1; /* Failed */ } /* * "inputsecret()" function */ static void f_inputsecret(argvars, rettv) typeval *argvars; typeval *rettv; { ++cmdline_star; ++inputsecret_flag; f_input(argvars, rettv); --cmdline_star; --inputsecret_flag; } /* * "insert()" function */ static void f_insert(argvars, rettv) typeval *argvars; typeval *rettv; { long before = 0; long n; listitem *item; listvar *l; if (argvars[0].v_type != VAR_LIST) EMSG2(_(e_listarg), "insert()"); else if ((l = argvars[0].vval.v_list) != NULL) { if (argvars[2].v_type != VAR_UNKNOWN) before = get_tv_number(&argvars[2]); n = before; item = list_find_ext(l, &n); if (n > 0) EMSGN(_(e_listidx), before); else { list_insert_tv(l, &argvars[1], item); ++l->lv_refcount; copy_tv(&argvars[0], rettv); } } } /* * "isdirectory()" function */ static void f_isdirectory(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->vval.v_number = mch_isdir(get_tv_string(&argvars[0])); } /* * "last_buffer_nr()" function. */ /*ARGSUSED*/ static void f_last_buffer_nr(argvars, rettv) typeval *argvars; typeval *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) typeval *argvars; typeval *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; default: EMSG(_("E999: Invalid type for len()")); break; } } static void libcall_common __ARGS((typeval *argvars, typeval *rettv, int type)); static void libcall_common(argvars, rettv, type) typeval *argvars; typeval *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_number = 0; else 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) { if (argvars[2].v_type == VAR_NUMBER) string_in = NULL; else 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) typeval *argvars; typeval *rettv; { libcall_common(argvars, rettv, VAR_STRING); } /* * "libcallnr()" function */ static void f_libcallnr(argvars, rettv) typeval *argvars; typeval *rettv; { libcall_common(argvars, rettv, VAR_NUMBER); } /* * "line(string)" function */ static void f_line(argvars, rettv) typeval *argvars; typeval *rettv; { linenr_T lnum = 0; pos_T *fp; fp = var2fpos(&argvars[0], TRUE); if (fp != NULL) lnum = fp->lnum; rettv->vval.v_number = lnum; } /* * "line2byte(lnum)" function */ /*ARGSUSED*/ static void f_line2byte(argvars, rettv) typeval *argvars; typeval *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) typeval *argvars; typeval *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 */ /*ARGSUSED*/ static void f_localtime(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->vval.v_number = (varnumber_T)time(NULL); } static void get_maparg __ARGS((typeval *argvars, typeval *rettv, int exact)); static void get_maparg(argvars, rettv, exact) typeval *argvars; typeval *rettv; int exact; { char_u *keys; char_u *which; char_u buf[NUMBUFLEN]; char_u *keys_buf = NULL; char_u *rhs; int mode; garray_T ga; /* 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(&argvars[1], buf); else which = (char_u *)""; mode = get_map_mode(&which, 0); keys = replace_termcodes(keys, &keys_buf, TRUE, TRUE); rhs = check_map(keys, mode, exact); vim_free(keys_buf); if (rhs != NULL) { ga_init(&ga); ga.ga_itemsize = 1; ga.ga_growsize = 40; while (*rhs != NUL) ga_concat(&ga, str2special(&rhs, FALSE)); ga_append(&ga, NUL); rettv->vval.v_string = (char_u *)ga.ga_data; } } /* * "maparg()" function */ static void f_maparg(argvars, rettv) typeval *argvars; typeval *rettv; { get_maparg(argvars, rettv, TRUE); } /* * "mapcheck()" function */ static void f_mapcheck(argvars, rettv) typeval *argvars; typeval *rettv; { get_maparg(argvars, rettv, FALSE); } static void find_some_match __ARGS((typeval *argvars, typeval *rettv, int start)); static void find_some_match(argvars, rettv, type) typeval *argvars; typeval *rettv; int type; { char_u *str; char_u *expr; char_u *pat; regmatch_T regmatch; char_u patbuf[NUMBUFLEN]; char_u *save_cpo; long start = 0; long nth = 1; int match; /* Make 'cpoptions' empty, the 'l' flag should not be used here. */ save_cpo = p_cpo; p_cpo = (char_u *)""; expr = str = get_tv_string(&argvars[0]); pat = get_tv_string_buf(&argvars[1], patbuf); if (type == 2) { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; } else rettv->vval.v_number = -1; if (argvars[2].v_type != VAR_UNKNOWN) { start = get_tv_number(&argvars[2]); if (start < 0) start = 0; if (start > (long)STRLEN(str)) goto theend; str += start; if (argvars[3].v_type != VAR_UNKNOWN) nth = get_tv_number(&argvars[3]); } regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING); if (regmatch.regprog != NULL) { regmatch.rm_ic = p_ic; while (1) { match = vim_regexec_nl(®match, str, (colnr_T)0); if (!match || --nth <= 0) break; /* Advance to just after the match. */ #ifdef FEAT_MBYTE str = regmatch.startp[0] + mb_ptr2len_check(regmatch.startp[0]); #else str = regmatch.startp[0] + 1; #endif } if (match) { if (type == 2) rettv->vval.v_string = vim_strnsave(regmatch.startp[0], (int)(regmatch.endp[0] - regmatch.startp[0])); 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 += str - expr; } } vim_free(regmatch.regprog); } theend: p_cpo = save_cpo; } /* * "match()" function */ static void f_match(argvars, rettv) typeval *argvars; typeval *rettv; { find_some_match(argvars, rettv, 1); } /* * "matchend()" function */ static void f_matchend(argvars, rettv) typeval *argvars; typeval *rettv; { find_some_match(argvars, rettv, 0); } /* * "matchstr()" function */ static void f_matchstr(argvars, rettv) typeval *argvars; typeval *rettv; { find_some_match(argvars, rettv, 2); } /* * "mode()" function */ /*ARGSUSED*/ static void f_mode(argvars, rettv) typeval *argvars; typeval *rettv; { char_u buf[2]; #ifdef FEAT_VISUAL if (VIsual_active) { if (VIsual_select) buf[0] = VIsual_mode + 's' - 'v'; else buf[0] = VIsual_mode; } else #endif if (State == HITRETURN || State == ASKMORE || State == SETWSIZE) buf[0] = 'r'; else if (State & INSERT) { if (State & REPLACE_FLAG) buf[0] = 'R'; else buf[0] = 'i'; } else if (State & CMDLINE) buf[0] = 'c'; else buf[0] = 'n'; buf[1] = NUL; rettv->vval.v_string = vim_strsave(buf); rettv->v_type = VAR_STRING; } /* * "nextnonblank()" function */ static void f_nextnonblank(argvars, rettv) typeval *argvars; typeval *rettv; { linenr_T lnum; for (lnum = get_tv_lnum(argvars); ; ++lnum) { if (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) typeval *argvars; typeval *rettv; { char_u buf[NUMBUFLEN]; #ifdef FEAT_MBYTE if (has_mbyte) 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); } /* * "prevnonblank()" function */ static void f_prevnonblank(argvars, rettv) typeval *argvars; typeval *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; } #if defined(FEAT_CLIENTSERVER) && defined(FEAT_X11) static void make_connection __ARGS((void)); static int check_connection __ARGS((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 __ARGS((typeval *argvars, typeval *rettv, int expr)); static void remote_common(argvars, rettv, expr) typeval *argvars; typeval *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(&argvars[0]); 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) { var v; char_u str[30]; sprintf((char *)str, "0x%x", (unsigned int)w); v.tv.v_type = VAR_STRING; v.tv.vval.v_string = vim_strsave(str); set_var(get_tv_string(&argvars[2]), &v.tv, FALSE); vim_free(v.tv.vval.v_string); } } #endif /* * "remote_expr()" function */ /*ARGSUSED*/ static void f_remote_expr(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_CLIENTSERVER remote_common(argvars, rettv, TRUE); #endif } /* * "remote_foreground()" function */ /*ARGSUSED*/ static void f_remote_foreground(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->vval.v_number = 0; #ifdef FEAT_CLIENTSERVER # ifdef WIN32 /* On Win32 it's done in this application. */ serverForeground(get_tv_string(&argvars[0])); # 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 } /*ARGSUSED*/ static void f_remote_peek(argvars, rettv) typeval *argvars; typeval *rettv; { #ifdef FEAT_CLIENTSERVER var v; char_u *s = NULL; # ifdef WIN32 int n = 0; # endif if (check_restricted() || check_secure()) { rettv->vval.v_number = -1; return; } # ifdef WIN32 sscanf(get_tv_string(&argvars[0]), "%x", &n); if (n == 0) rettv->vval.v_number = -1; else { s = serverGetReply((HWND)n, FALSE, FALSE, FALSE); rettv->vval.v_number = (s != NULL); } # else rettv->vval.v_number = 0; if (check_connection() == FAIL) return; rettv->vval.v_number = serverPeekReply(X_DISPLAY, serverStrToWin(get_tv_string(&argvars[0])), &s); # endif if (argvars[1].v_type != VAR_UNKNOWN && rettv->vval.v_number > 0) { v.tv.v_type = VAR_STRING; v.tv.vval.v_string = vim_strsave(s); set_var(get_tv_string(&argvars[1]), &v.tv, FALSE); vim_free(v.tv.vval.v_string); } #else rettv->vval.v_number = -1; #endif } /*ARGSUSED*/ static void f_remote_read(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *r = NULL; #ifdef FEAT_CLIENTSERVER if (!check_restricted() && !check_secure()) { # ifdef WIN32 /* The server's HWND is encoded in the 'id' parameter */ int n = 0; sscanf(get_tv_string(&argvars[0]), "%x", &n); if (n != 0) r = serverGetReply((HWND)n, FALSE, TRUE, TRUE); if (r == NULL) # else if (check_connection() == FAIL || serverReadReply(X_DISPLAY, serverStrToWin(get_tv_string(&argvars[0])), &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 */ /*ARGSUSED*/ static void f_remote_send(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_CLIENTSERVER remote_common(argvars, rettv, FALSE); #endif } /* * "remove({list}, {idx} [, {end}])" function */ static void f_remove(argvars, rettv) typeval *argvars; typeval *rettv; { listvar *l; listitem *item, *item2; listitem *li; long idx; long end; rettv->vval.v_number = 0; if (argvars[0].v_type != VAR_LIST) EMSG2(_(e_listarg), "remove()"); else if ((l = argvars[0].vval.v_list) != NULL) { idx = get_tv_number(&argvars[1]); item = list_find(l, idx); if (item == NULL) EMSGN(_(e_listidx), idx); else { if (argvars[2].v_type == VAR_UNKNOWN) { /* Remove one item, return its value. */ list_getrem(l, item, item); *rettv = item->li_tv; vim_free(item); } else { /* Remove range of items, return list with values. */ end = get_tv_number(&argvars[2]); item2 = list_find(l, end); if (item2 == NULL) EMSGN(_(e_listidx), end); else { for (li = item; li != item2 && li != NULL; li = li->li_next) ; if (li == NULL) /* didn't find "item2" after "item" */ EMSG(_(e_invrange)); else { list_getrem(l, item, item2); l = list_alloc(); if (l != NULL) { rettv->v_type = VAR_LIST; rettv->vval.v_list = l; l->lv_first = item; l->lv_last = item2; l->lv_refcount = 1; item->li_prev = NULL; item2->li_next = NULL; } } } } } } } /* * "rename({from}, {to})" function */ static void f_rename(argvars, rettv) typeval *argvars; typeval *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 */ /*ARGSUSED*/ static void f_repeat(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *p; int n; int slen; int len; char_u *r; int i; listvar *l; n = get_tv_number(&argvars[1]); if (argvars[0].v_type == VAR_LIST) { l = list_alloc(); if (l != NULL && argvars[0].vval.v_list != NULL) { l->lv_refcount = 1; while (n-- > 0) if (list_extend(l, argvars[0].vval.v_list, NULL) == FAIL) break; } rettv->v_type = VAR_LIST; rettv->vval.v_list = l; } 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) typeval *argvars; typeval *rettv; { char_u *p; 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 buf[MAXPATHL + 1]; 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; 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; } 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 = vim_strnsave(q-1, STRLEN(q-1)+STRLEN(remain)); if (cpy != NULL) { STRCAT(cpy, remain); 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) STRCPY(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 = vim_strnsave((char_u *)"./", 2 + STRLEN(p)); if (cpy != NULL) { STRCAT(cpy, p); 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) mch_memmove(p, p + 2, STRLEN(p + 2) + (size_t)1); } } /* 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: #endif rettv->v_type = VAR_STRING; } /* * "reverse({list})" function */ static void f_reverse(argvars, rettv) typeval *argvars; typeval *rettv; { listvar *l; listitem *li, *ni; rettv->vval.v_number = 0; if (argvars[0].v_type != VAR_LIST) EMSG2(_(e_listarg), "reverse()"); else if ((l = argvars[0].vval.v_list) != NULL) { li = l->lv_last; l->lv_first = l->lv_last = li; 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; } } #define SP_NOMOVE 1 /* don't move cursor */ #define SP_REPEAT 2 /* repeat to find outer pair */ #define SP_RETCOUNT 4 /* return matchcount */ static int get_search_arg __ARGS((typeval *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) typeval *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(varp, nbuf); 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 'n': mask = SP_NOMOVE; break; case 'r': mask = SP_REPEAT; break; case 'm': mask = SP_RETCOUNT; break; } if (mask == 0) { EMSG2(_(e_invarg2), flags); dir = 0; } else *flagsp |= mask; } if (dir == 0) break; ++flags; } } return dir; } /* * "search()" function */ static void f_search(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *pat; pos_T pos; pos_T save_cursor; int save_p_ws = p_ws; int dir; int flags = 0; rettv->vval.v_number = 0; /* default: FAIL */ pat = get_tv_string(&argvars[0]); dir = get_search_arg(&argvars[1], &flags); /* may set p_ws */ if (dir == 0) goto theend; if ((flags & ~SP_NOMOVE) != 0) { EMSG2(_(e_invarg2), get_tv_string(&argvars[1])); goto theend; } pos = save_cursor = curwin->w_cursor; if (searchit(curwin, curbuf, &pos, dir, pat, 1L, SEARCH_KEEP, RE_SEARCH) != FAIL) { rettv->vval.v_number = pos.lnum; curwin->w_cursor = pos; /* "/$" 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; theend: p_ws = save_p_ws; } /* * "searchpair()" function */ static void f_searchpair(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *spat, *mpat, *epat; char_u *skip; char_u *pat, *pat2, *pat3; pos_T pos; pos_T firstpos; pos_T save_cursor; pos_T save_pos; int save_p_ws = p_ws; char_u *save_cpo; int dir; int flags = 0; char_u nbuf1[NUMBUFLEN]; char_u nbuf2[NUMBUFLEN]; char_u nbuf3[NUMBUFLEN]; int n; int r; int nest = 1; int err; rettv->vval.v_number = 0; /* default: FAIL */ /* Make 'cpoptions' empty, the 'l' flag should not be used here. */ save_cpo = p_cpo; p_cpo = (char_u *)""; /* Get the three pattern arguments: start, middle, end. */ spat = get_tv_string(&argvars[0]); mpat = get_tv_string_buf(&argvars[1], nbuf1); epat = get_tv_string_buf(&argvars[2], nbuf2); /* 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); /* Handle the optional fourth argument: flags */ dir = get_search_arg(&argvars[3], &flags); /* may set p_ws */ if (dir == 0) goto theend; /* Optional fifth argument: skip expresion */ if (argvars[3].v_type == VAR_UNKNOWN || argvars[4].v_type == VAR_UNKNOWN) skip = (char_u *)""; else skip = get_tv_string_buf(&argvars[4], nbuf3); save_cursor = curwin->w_cursor; pos = curwin->w_cursor; firstpos.lnum = 0; pat = pat3; for (;;) { n = searchit(curwin, curbuf, &pos, dir, pat, 1L, SEARCH_KEEP, RE_SEARCH); 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 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; rettv->vval.v_number = -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) ++rettv->vval.v_number; else rettv->vval.v_number = pos.lnum; curwin->w_cursor = pos; if (!(flags & SP_REPEAT)) break; nest = 1; /* search for next unmatched */ } } /* If 'n' flag is used or search failed: restore cursor position. */ if ((flags & SP_NOMOVE) || rettv->vval.v_number == 0) curwin->w_cursor = save_cursor; theend: vim_free(pat2); vim_free(pat3); p_ws = save_p_ws; p_cpo = save_cpo; } /*ARGSUSED*/ static void f_server2client(argvars, rettv) typeval *argvars; typeval *rettv; { #ifdef FEAT_CLIENTSERVER char_u buf[NUMBUFLEN]; char_u *server = get_tv_string(&argvars[0]); char_u *reply = get_tv_string_buf(&argvars[1], buf); rettv->vval.v_number = -1; 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 } /*ARGSUSED*/ static void f_serverlist(argvars, rettv) typeval *argvars; typeval *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 */ /*ARGSUSED*/ static void f_setbufvar(argvars, rettv) typeval *argvars; typeval *rettv; { buf_T *buf; #ifdef FEAT_AUTOCMD aco_save_T aco; #else buf_T *save_curbuf; #endif char_u *varname, *bufvarname; typeval *varp; char_u nbuf[NUMBUFLEN]; if (check_restricted() || check_secure()) return; ++emsg_off; buf = get_buf_tv(&argvars[0]); varname = get_tv_string(&argvars[1]); varp = &argvars[2]; if (buf != NULL && varname != NULL && varp != NULL) { /* set curbuf to be our buf, temporarily */ #ifdef FEAT_AUTOCMD aucmd_prepbuf(&aco, buf); #else save_curbuf = curbuf; curbuf = buf; #endif if (*varname == '&') { ++varname; set_option_value(varname, get_tv_number(varp), get_tv_string_buf(varp, nbuf), 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 */ #ifdef FEAT_AUTOCMD aucmd_restbuf(&aco); #else curbuf = save_curbuf; #endif } --emsg_off; } /* * "setcmdpos()" function */ static void f_setcmdpos(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->vval.v_number = set_cmdline_pos( (int)get_tv_number(&argvars[0]) - 1); } /* * "setline()" function */ static void f_setline(argvars, rettv) typeval *argvars; typeval *rettv; { linenr_T lnum; char_u *line; lnum = get_tv_lnum(argvars); line = get_tv_string(&argvars[1]); rettv->vval.v_number = 1; /* FAIL is default */ if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count && u_savesub(lnum) == OK && ml_replace(lnum, line, TRUE) == OK) { changed_bytes(lnum, 0); check_cursor_col(); rettv->vval.v_number = 0; } } /* * "setreg()" function */ static void f_setreg(argvars, rettv) typeval *argvars; typeval *rettv; { int regname; char_u *strregname; char_u *stropt; int append; char_u yank_type; long block_len; block_len = -1; yank_type = MAUTO; append = FALSE; strregname = get_tv_string(argvars); rettv->vval.v_number = 1; /* FAIL is default */ regname = (strregname == NULL ? '"' : *strregname); if (regname == 0 || regname == '@') regname = '"'; else if (regname == '=') return; if (argvars[2].v_type != VAR_UNKNOWN) { for (stropt = get_tv_string(&argvars[2]); *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; #ifdef FEAT_VISUAL case 'b': case Ctrl_V: /* block-wise selection */ yank_type = MBLOCK; if (VIM_ISDIGIT(stropt[1])) { ++stropt; block_len = getdigits(&stropt) - 1; --stropt; } break; #endif } } write_reg_contents_ex(regname, get_tv_string(&argvars[1]), -1, append, yank_type, block_len); rettv->vval.v_number = 0; } /* * "setwinvar(expr)" function */ /*ARGSUSED*/ static void f_setwinvar(argvars, rettv) typeval *argvars; typeval *rettv; { win_T *win; #ifdef FEAT_WINDOWS win_T *save_curwin; #endif char_u *varname, *winvarname; typeval *varp; char_u nbuf[NUMBUFLEN]; if (check_restricted() || check_secure()) return; ++emsg_off; win = find_win_by_nr(&argvars[0]); varname = get_tv_string(&argvars[1]); varp = &argvars[2]; if (win != NULL && varname != NULL && varp != NULL) { #ifdef FEAT_WINDOWS /* set curwin to be our win, temporarily */ save_curwin = curwin; curwin = win; curbuf = curwin->w_buffer; #endif if (*varname == '&') { ++varname; set_option_value(varname, get_tv_number(varp), get_tv_string_buf(varp, nbuf), 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 /* Restore current window, if it's still valid (autocomands can make * it invalid). */ if (win_valid(save_curwin)) { curwin = save_curwin; curbuf = curwin->w_buffer; } #endif } --emsg_off; } /* * "simplify()" function */ static void f_simplify(argvars, rettv) typeval *argvars; typeval *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; } static int #ifdef __BORLANDC__ _RTLENTRYF #endif item_compare __ARGS((const void *s1, const void *s2)); static int #ifdef __BORLANDC__ _RTLENTRYF #endif item_compare2 __ARGS((const void *s1, const void *s2)); static int item_compare_ic; static char_u *item_compare_func; #define ITEM_COMPARE_FAIL 999 /* * Compare functions for f_sort() below. */ static int #ifdef __BORLANDC__ _RTLENTRYF #endif item_compare(s1, s2) const void *s1; const void *s2; { char_u *p1, *p2; char_u *tofree1, *tofree2; int res; char_u numbuf1[NUMBUFLEN]; char_u numbuf2[NUMBUFLEN]; p1 = tv2string(&(*(listitem **)s1)->li_tv, &tofree1, numbuf1); p2 = tv2string(&(*(listitem **)s2)->li_tv, &tofree2, numbuf2); if (item_compare_ic) res = STRICMP(p1, p2); else res = STRCMP(p1, p2); vim_free(tofree1); vim_free(tofree2); return res; } static int #ifdef __BORLANDC__ _RTLENTRYF #endif item_compare2(s1, s2) const void *s1; const void *s2; { int res; typeval rettv; typeval argv[2]; int dummy; /* copy the values (is this really needed?) */ copy_tv(&(*(listitem **)s1)->li_tv, &argv[0]); copy_tv(&(*(listitem **)s2)->li_tv, &argv[1]); rettv.v_type = VAR_UNKNOWN; /* clear_tv() uses this */ res = call_func(item_compare_func, STRLEN(item_compare_func), &rettv, 2, argv, 0L, 0L, &dummy, TRUE); clear_tv(&argv[0]); clear_tv(&argv[1]); if (res == FAIL) res = ITEM_COMPARE_FAIL; else res = get_tv_number(&rettv); clear_tv(&rettv); return res; } /* * "sort({list})" function */ static void f_sort(argvars, rettv) typeval *argvars; typeval *rettv; { listvar *l; listitem *li; listitem **ptrs; long len; long i; rettv->vval.v_number = 0; if (argvars[0].v_type != VAR_LIST) EMSG2(_(e_listarg), "sort()"); else { l = argvars[0].vval.v_list; if (l == NULL) 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_func = NULL; if (argvars[1].v_type != VAR_UNKNOWN) { if (argvars[1].v_type == VAR_FUNC) item_compare_func = argvars[0].vval.v_string; else { i = get_tv_number(&argvars[1]); if (i == 1) item_compare_ic = TRUE; else item_compare_func = get_tv_string(&argvars[1]); } } /* Make an array with each entry pointing to an item in the List. */ ptrs = (listitem **)alloc((int)(len * sizeof(listitem *))); if (ptrs == NULL) return; i = 0; for (li = l->lv_first; li != NULL; li = li->li_next) ptrs[i++] = li; /* test the compare function */ if (item_compare_func != NULL && item_compare2((void *)&ptrs[0], (void *)&ptrs[1]) == ITEM_COMPARE_FAIL) EMSG(_("E999: Sort compare function failed")); else { /* Sort the array with item pointers. */ qsort((void *)ptrs, (size_t)len, sizeof(listitem *), item_compare_func == NULL ? item_compare : item_compare2); /* Clear the List and append the items in the sorted order. */ l->lv_first = l->lv_last = NULL; for (i = 0; i < len; ++i) list_append(l, ptrs[i]); } vim_free(ptrs); } } static void f_str2list(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *str; char_u *end; char_u *pat; regmatch_T regmatch; char_u patbuf[NUMBUFLEN]; char_u *save_cpo; int match; listitem *ni; listvar *l; colnr_T col = 0; /* 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 = (char_u *)"[\\x01- ]\\+"; else pat = get_tv_string_buf(&argvars[1], patbuf); l = list_alloc(); if (l == NULL) return; rettv->v_type = VAR_LIST; rettv->vval.v_list = l; ++l->lv_refcount; regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING); if (regmatch.regprog != NULL) { regmatch.rm_ic = FALSE; while (*str != NUL) { match = vim_regexec_nl(®match, str, col); if (match) end = regmatch.startp[0]; else end = str + STRLEN(str); if (end > str) { ni = listitem_alloc(); if (ni == NULL) break; ni->li_tv.v_type = VAR_STRING; ni->li_tv.vval.v_string = vim_strnsave(str, end - str); list_append(l, ni); } 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_check(regmatch.endp[0]); #else col = 1; #endif } str = regmatch.endp[0]; } vim_free(regmatch.regprog); } p_cpo = save_cpo; } #ifdef HAVE_STRFTIME /* * "strftime({format}[, {time}])" function */ static void f_strftime(argvars, rettv) typeval *argvars; typeval *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) typeval *argvars; typeval *rettv; { char_u buf[NUMBUFLEN]; char_u *needle; char_u *haystack; char_u *pos; needle = get_tv_string(&argvars[1]); haystack = get_tv_string_buf(&argvars[0], buf); pos = (char_u *)strstr((char *)haystack, (char *)needle); if (pos == NULL) rettv->vval.v_number = -1; else rettv->vval.v_number = (varnumber_T) (pos - haystack); } /* * "string()" function */ static void f_string(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *tofree; char_u numbuf[NUMBUFLEN]; rettv->v_type = VAR_STRING; rettv->vval.v_string = tv2string(&argvars[0], &tofree, numbuf); if (tofree == NULL) rettv->vval.v_string = vim_strsave(rettv->vval.v_string); } /* * "strlen()" function */ static void f_strlen(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->vval.v_number = (varnumber_T)(STRLEN( get_tv_string(&argvars[0]))); } /* * "strpart()" function */ static void f_strpart(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *p; int n; int len; int slen; p = get_tv_string(&argvars[0]); slen = (int)STRLEN(p); n = get_tv_number(&argvars[1]); 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) typeval *argvars; typeval *rettv; { char_u buf[NUMBUFLEN]; char_u *needle; char_u *haystack; char_u *rest; char_u *lastmatch = NULL; needle = get_tv_string(&argvars[1]); haystack = get_tv_string_buf(&argvars[0], buf); if (*needle == NUL) /* Empty string matches past the end. */ lastmatch = haystack + STRLEN(haystack); else for (rest = haystack; *rest != '\0'; ++rest) { rest = (char_u *)strstr((char *)rest, (char *)needle); if (rest == NULL) 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) typeval *argvars; typeval *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = transstr(get_tv_string(&argvars[0])); } /* * "submatch()" function */ static void f_submatch(argvars, rettv) typeval *argvars; typeval *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = reg_submatch((int)get_tv_number(&argvars[0])); } /* * "substitute()" function */ static void f_substitute(argvars, rettv) typeval *argvars; typeval *rettv; { char_u patbuf[NUMBUFLEN]; char_u subbuf[NUMBUFLEN]; char_u flagsbuf[NUMBUFLEN]; rettv->v_type = VAR_STRING; rettv->vval.v_string = do_string_sub( get_tv_string(&argvars[0]), get_tv_string_buf(&argvars[1], patbuf), get_tv_string_buf(&argvars[2], subbuf), get_tv_string_buf(&argvars[3], flagsbuf)); } /* * "synID(line, col, trans)" function */ /*ARGSUSED*/ static void f_synID(argvars, rettv) typeval *argvars; typeval *rettv; { int id = 0; #ifdef FEAT_SYN_HL long line; long col; int trans; line = get_tv_lnum(argvars); col = get_tv_number(&argvars[1]) - 1; trans = get_tv_number(&argvars[2]); if (line >= 1 && line <= curbuf->b_ml.ml_line_count && col >= 0 && col < (long)STRLEN(ml_get(line))) id = syn_get_id(line, col, trans); #endif rettv->vval.v_number = id; } /* * "synIDattr(id, what [, mode])" function */ /*ARGSUSED*/ static void f_synIDattr(argvars, rettv) typeval *argvars; typeval *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' #ifdef FEAT_GUI && modec != 'g' #endif ) 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[#] */ 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': /* standout */ p = highlight_has_attr(id, HL_STANDOUT, modec); break; case 'u': /* underline */ p = highlight_has_attr(id, HL_UNDERLINE, modec); break; } if (p != NULL) p = vim_strsave(p); #endif rettv->v_type = VAR_STRING; rettv->vval.v_string = p; } /* * "synIDtrans(id)" function */ /*ARGSUSED*/ static void f_synIDtrans(argvars, rettv) typeval *argvars; typeval *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; } /* * "system()" function */ static void f_system(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *res = NULL; char_u *p; char_u *infile = NULL; char_u buf[NUMBUFLEN]; int err = FALSE; FILE *fd; 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')) == NULL) { EMSG(_(e_notmp)); return; } fd = mch_fopen((char *)infile, WRITEBIN); if (fd == NULL) { EMSG2(_(e_notopen), infile); goto done; } p = get_tv_string_buf(&argvars[1], buf); if (fwrite(p, STRLEN(p), 1, fd) != 1) err = TRUE; if (fclose(fd) != 0) err = TRUE; if (err) { EMSG(_("E677: Error writing temp file")); goto done; } } res = get_cmd_output(get_tv_string(&argvars[0]), infile, SHELL_SILENT); #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 done: if (infile != NULL) { mch_remove(infile); vim_free(infile); } rettv->v_type = VAR_STRING; rettv->vval.v_string = res; } /* * "tempname()" function */ /*ARGSUSED*/ static void f_tempname(argvars, rettv) typeval *argvars; typeval *rettv; { static int x = 'A'; rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_tempname(x); /* 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'); } /* * "tolower(string)" function */ static void f_tolower(argvars, rettv) typeval *argvars; typeval *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_check(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_check)(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) typeval *argvars; typeval *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, uc; c = utf_ptr2char(p); uc = utf_toupper(c); l = utf_ptr2len_check(p); /* TODO: reallocate string when byte count changes. */ if (utf_char2len(uc) == l) utf_char2bytes(uc, p); p += l; } else if (has_mbyte && (l = (*mb_ptr2len_check)(p)) > 1) p += l; /* skip multi-byte character */ else #endif { *p = TOUPPER_LOC(*p); /* note that toupper() can be a macro */ p++; } } } /* * "tr(string, fromstr, tostr)" function */ static void f_tr(argvars, rettv) typeval *argvars; typeval *rettv; { char_u *instr; 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; instr = get_tv_string(&argvars[0]); fromstr = get_tv_string_buf(&argvars[1], buf); tostr = get_tv_string_buf(&argvars[2], buf2); /* Default return value: empty string. */ rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; 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 (*instr != NUL) { #ifdef FEAT_MBYTE if (has_mbyte) { inlen = mb_ptr2len_check(instr); cpstr = instr; cplen = inlen; idx = 0; for (p = fromstr; *p != NUL; p += fromlen) { fromlen = mb_ptr2len_check(p); if (fromlen == inlen && STRNCMP(instr, p, inlen) == 0) { for (p = tostr; *p != NUL; p += tolen) { tolen = mb_ptr2len_check(p); if (idx-- == 0) { cplen = tolen; cpstr = p; break; } } if (*p == NUL) /* tostr is shorter than fromstr */ goto error; break; } ++idx; } if (first && cpstr == instr) { /* Check that fromstr and tostr have the same number of * (multi-byte) characters. Done only once when a character * of instr doesn't appear in fromstr. */ first = FALSE; for (p = tostr; *p != NUL; p += tolen) { tolen = mb_ptr2len_check(p); --idx; } if (idx != 0) goto error; } ga_grow(&ga, cplen); mch_memmove((char *)ga.ga_data + ga.ga_len, cpstr, (size_t)cplen); ga.ga_len += cplen; instr += inlen; } else #endif { /* When not using multi-byte chars we can do it faster. */ p = vim_strchr(fromstr, *instr); if (p != NULL) ga_append(&ga, tostr[p - fromstr]); else ga_append(&ga, *instr); ++instr; } } rettv->vval.v_string = ga.ga_data; } /* * "type(expr)" function */ static void f_type(argvars, rettv) typeval *argvars; typeval *rettv; { if (argvars[0].v_type == VAR_NUMBER) rettv->vval.v_number = 0; else rettv->vval.v_number = 1; } /* * "virtcol(string)" function */ static void f_virtcol(argvars, rettv) typeval *argvars; typeval *rettv; { colnr_T vcol = 0; pos_T *fp; fp = var2fpos(&argvars[0], FALSE); if (fp != NULL && fp->lnum <= curbuf->b_ml.ml_line_count) { getvvcol(curwin, fp, NULL, NULL, &vcol); ++vcol; } rettv->vval.v_number = vcol; } /* * "visualmode()" function */ /*ARGSUSED*/ static void f_visualmode(argvars, rettv) typeval *argvars; typeval *rettv; { #ifdef FEAT_VISUAL 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 ((argvars[0].v_type == VAR_NUMBER && argvars[0].vval.v_number != 0) || (argvars[0].v_type == VAR_STRING && *get_tv_string(&argvars[0]) != NUL)) curbuf->b_visual_mode_eval = NUL; #else rettv->vval.v_number = 0; /* return anything, it won't work anyway */ #endif } /* * "winbufnr(nr)" function */ static void f_winbufnr(argvars, rettv) typeval *argvars; typeval *rettv; { win_T *wp; wp = find_win_by_nr(&argvars[0]); if (wp == NULL) rettv->vval.v_number = -1; else rettv->vval.v_number = wp->w_buffer->b_fnum; } /* * "wincol()" function */ /*ARGSUSED*/ static void f_wincol(argvars, rettv) typeval *argvars; typeval *rettv; { validate_cursor(); rettv->vval.v_number = curwin->w_wcol + 1; } /* * "winheight(nr)" function */ static void f_winheight(argvars, rettv) typeval *argvars; typeval *rettv; { win_T *wp; wp = find_win_by_nr(&argvars[0]); if (wp == NULL) rettv->vval.v_number = -1; else rettv->vval.v_number = wp->w_height; } /* * "winline()" function */ /*ARGSUSED*/ static void f_winline(argvars, rettv) typeval *argvars; typeval *rettv; { validate_cursor(); rettv->vval.v_number = curwin->w_wrow + 1; } /* * "winnr()" function */ /* ARGSUSED */ static void f_winnr(argvars, rettv) typeval *argvars; typeval *rettv; { int nr = 1; #ifdef FEAT_WINDOWS win_T *wp; win_T *twin = curwin; char_u *arg; if (argvars[0].v_type != VAR_UNKNOWN) { arg = get_tv_string(&argvars[0]); if (STRCMP(arg, "$") == 0) twin = lastwin; else if (STRCMP(arg, "#") == 0) { twin = prevwin; if (prevwin == NULL) nr = 0; } else { EMSG2(_(e_invexpr2), arg); nr = 0; } } if (nr > 0) for (wp = firstwin; wp != twin; wp = wp->w_next) ++nr; #endif rettv->vval.v_number = nr; } /* * "winrestcmd()" function */ /* ARGSUSED */ static void f_winrestcmd(argvars, rettv) typeval *argvars; typeval *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; } /* * "winwidth(nr)" function */ static void f_winwidth(argvars, rettv) typeval *argvars; typeval *rettv; { win_T *wp; wp = find_win_by_nr(&argvars[0]); 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 } static win_T * find_win_by_nr(vp) typeval *vp; { #ifdef FEAT_WINDOWS win_T *wp; #endif int nr; nr = get_tv_number(vp); #ifdef FEAT_WINDOWS if (nr == 0) return curwin; for (wp = firstwin; wp != NULL; wp = wp->w_next) if (--nr <= 0) break; return wp; #else if (nr == 0 || nr == 1) return curwin; return NULL; #endif } /* * Translate a String variable into a position. */ static pos_T * var2fpos(varp, lnum) typeval *varp; int lnum; /* TRUE when $ is last line */ { char_u *name; static pos_T pos; pos_T *pp; name = get_tv_string(varp); if (name[0] == '.') /* cursor */ return &curwin->w_cursor; if (name[0] == '\'') /* mark */ { pp = getmark(name[1], FALSE); if (pp == NULL || pp == (pos_T *)-1 || pp->lnum <= 0) return NULL; return pp; } if (name[0] == '$') /* last column or line */ { if (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; } /* * 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 == *arg) /* no name found */ return 0; len = (int)(p - *arg); *arg = skipwhite(p); return len; } /* * Get the length of the name of a function. * "arg" is advanced to the first non-white character after the name. * Return 0 if something 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_func_len(arg, alias, evaluate) char_u **arg; char_u **alias; int evaluate; { 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, FALSE); 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 0; *alias = temp_string; *arg = skipwhite(p); return (int)STRLEN(temp_string); } len += get_id_len(arg); if (len == 0) 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. * 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, incl_br) char_u *arg; char_u **expr_start; char_u **expr_end; int incl_br; /* Include [] indexes */ { int mb_nest = 0; int br_nest = 0; char_u *p; if (expr_start != NULL) { *expr_start = NULL; *expr_end = NULL; } for (p = arg; *p != NUL && (eval_isnamec(*p) || (*p == '[' && incl_br) || mb_nest != 0 || br_nest != 0); ++p) { 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; } /* * Return TRUE if character "c" can be used in a variable or function name. */ static int eval_isnamec(c) int c; { return (ASCII_ISALNUM(c) || c == '_' || c == ':' || c == '{' || c == '}'); } /* * Find a v: variable. * Return it's index, or -1 if not found. */ static int find_vim_var(name, len) char_u *name; int len; /* length of "name" */ { char_u *vname; int vlen; int i; /* * Ignore "v:" for old built-in variables, require it for new ones. */ if (name[0] == 'v' && name[1] == ':') { vname = name + 2; vlen = len - 2; } else { vname = name; vlen = len; } for (i = 0; i < VV_LEN; ++i) if (vlen == vimvars[i].len && STRCMP(vname, vimvars[i].name) == 0 && ((vimvars[i].flags & VV_COMPAT) || vname != name)) return i; return -1; } /* * Set number v: variable to "val". */ void set_vim_var_nr(idx, val) int idx; long val; { vimvars[idx].val = (char_u *)val; } /* * Get number v: variable value; */ long get_vim_var_nr(idx) int idx; { return (long)vimvars[idx].val; } /* * Set v:count, v:count1 and v:prevcount. */ void set_vcount(count, count1) long count; long count1; { vimvars[VV_PREVCOUNT].val = vimvars[VV_COUNT].val; vimvars[VV_COUNT].val = (char_u *)count; vimvars[VV_COUNT1].val = (char_u *)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) */ { vim_free(vimvars[idx].val); if (val == NULL) vimvars[idx].val = NULL; else if (len == -1) vimvars[idx].val = vim_strsave(val); else vimvars[idx].val = vim_strnsave(val, len); } /* * 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].val == NULL || vimvars[VV_REG].val[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].val; vimvars[VV_EXCEPTION].val = 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].val; vimvars[VV_THROWPOINT].val = 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].val; if (eap == NULL) { vim_free(oldval); vimvars[VV_CMDARG].val = 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->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; # 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->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); # endif vimvars[VV_CMDARG].val = newval; return oldval; } #endif /* * Get the value of internal variable "name". * Return OK or FAIL. */ static int get_var_tv(name, len, rettv) char_u *name; int len; /* length of "name" */ typeval *rettv; /* NULL when only checking existence */ { int ret = OK; typeval tv; VAR v; int cc; int i; tv.v_type = VAR_UNKNOWN; /* 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) { tv.v_type = VAR_NUMBER; tv.vval.v_number = curbuf->b_changedtick; } /* * Check for built-in v: variables. */ else if ((i = find_vim_var(name, len)) >= 0) { tv.v_type = vimvars[i].type; if (tv.v_type == VAR_NUMBER) tv.vval.v_number = (long)vimvars[i].val; else tv.vval.v_string = vimvars[i].val; } /* * Check for user-defined variables. */ else { v = find_var(name, FALSE); if (v != NULL) tv = v->tv; } if (tv.v_type == VAR_UNKNOWN) { if (rettv != NULL) EMSG2(_(e_undefvar), name); ret = FAIL; } else if (rettv != NULL) copy_tv(&tv, rettv); name[len] = cc; return ret; } /* * Allocate memory for a variable type-value, and make it emtpy (0 or NULL * value). */ static typeval * alloc_tv() { return (typeval *)alloc_clear((unsigned)sizeof(typeval)); } /* * 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 typeval * alloc_string_tv(s) char_u *s; { typeval *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. */ static void free_tv(varp) typeval *varp; { if (varp != NULL) { switch (varp->v_type) { case VAR_STRING: case VAR_FUNC: vim_free(varp->vval.v_string); break; case VAR_LIST: list_unref(varp->vval.v_list); break; default: break; } vim_free(varp); } } /* * Free the memory for a variable value and set the value to NULL or 0. */ static void clear_tv(varp) typeval *varp; { if (varp != NULL) { switch (varp->v_type) { case VAR_STRING: case VAR_FUNC: vim_free(varp->vval.v_string); varp->vval.v_string = NULL; break; case VAR_LIST: list_unref(varp->vval.v_list); break; case VAR_NUMBER: varp->vval.v_number = 0; break; case VAR_UNKNOWN: break; default: EMSG2(_(e_intern2), "clear_tv()"); } } } /* * Set the value of a variable to NULL without freeing items. */ static void init_tv(varp) typeval *varp; { if (varp != NULL) vim_memset(varp, 0, sizeof(typeval)); } /* * Get the number value of a variable. * If it is a String variable, uses vim_str2nr(). */ static long get_tv_number(varp) typeval *varp; { long n = 0L; switch (varp->v_type) { case VAR_NUMBER: n = (long)(varp->vval.v_number); break; case VAR_FUNC: EMSG(_("E999: Using function reference as a number")); break; case VAR_STRING: if (varp->vval.v_string != NULL) vim_str2nr(varp->vval.v_string, NULL, NULL, TRUE, TRUE, &n, NULL); break; default: break; } return n; } /* * Get the lnum from the first argument. Also accepts ".", "$", etc. */ static linenr_T get_tv_lnum(argvars) typeval *argvars; { typeval rettv; linenr_T lnum; lnum = get_tv_number(&argvars[0]); 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 string value of a variable. * If it is a Number variable, the number is converted into a string. * get_var_string() uses a single, static buffer. YOU CAN ONLY USE IT ONCE! * get_var_string_buf() uses a given buffer. * If the String variable has never been set, return an empty string. * Never returns NULL; */ static char_u * get_tv_string(varp) typeval *varp; { static char_u mybuf[NUMBUFLEN]; return get_tv_string_buf(varp, mybuf); } static char_u * get_tv_string_buf(varp, buf) typeval *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(_("E99: using Funcref as a String")); break; case VAR_LIST: EMSG(_("E99: using List as a String")); break; case VAR_STRING: if (varp->vval.v_string != NULL) return varp->vval.v_string; break; default: EMSG2(_(e_intern2), "get_tv_string_buf()"); break; } return (char_u *)""; } /* * 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. */ static VAR find_var(name, writing) char_u *name; int writing; { int i; char_u *varname; garray_T *gap; if (name[0] == 'a' && name[1] == ':') { /* Function arguments "a:". * NOTE: We use a typecast, because function arguments don't have a * name. The caller must not try to access the name! */ if (writing) { EMSG2(_(e_readonlyvar), name); return NULL; } name += 2; if (current_funccal == NULL) return NULL; if (VIM_ISDIGIT(*name)) { i = atol((char *)name); if (i == 0) /* a:0 */ return ¤t_funccal->a0_var; i += current_funccal->func->args.ga_len; if (i > current_funccal->argcount) /* a:999 */ return NULL; return (VAR)&(current_funccal->argvars[i - 1]); /* a:1, a:2, etc. */ } if (STRCMP(name, "firstline") == 0) return &(current_funccal->firstline); if (STRCMP(name, "lastline") == 0) return &(current_funccal->lastline); for (i = 0; i < current_funccal->func->args.ga_len; ++i) if (STRCMP(name, ((char_u **) (current_funccal->func->args.ga_data))[i]) == 0) return (VAR)&(current_funccal->argvars[i]); /* a:name */ return NULL; } gap = find_var_ga(name, &varname); if (gap == NULL) return NULL; return find_var_in_ga(gap, varname); } static VAR find_var_in_ga(gap, varname) garray_T *gap; char_u *varname; { int i; for (i = gap->ga_len; --i >= 0; ) if (VAR_GAP_ENTRY(i, gap).v_name != NULL && STRCMP(VAR_GAP_ENTRY(i, gap).v_name, varname) == 0) break; if (i < 0) return NULL; return &VAR_GAP_ENTRY(i, gap); } /* * Find the growarray and start of name without ':' for a variable name. */ static garray_T * find_var_ga(name, varname) char_u *name; char_u **varname; { if (name[1] != ':') { /* If not "x:name" there must not be any ":" in the name. */ if (vim_strchr(name, ':') != NULL) return NULL; *varname = name; if (current_funccal == NULL) return &variables; /* global variable */ return ¤t_funccal->l_vars; /* local function variable */ } *varname = name + 2; if (*name == 'b') /* buffer variable */ return &curbuf->b_vars; if (*name == 'w') /* window variable */ return &curwin->w_vars; if (*name == 'g') /* global variable */ return &variables; if (*name == 'l' && current_funccal != NULL)/* local function variable */ return ¤t_funccal->l_vars; if (*name == 's' /* script variable */ && current_SID > 0 && current_SID <= ga_scripts.ga_len) return &SCRIPT_VARS(current_SID); return NULL; } /* * Get the string value of a (global/local) variable. * Returns NULL when it doesn't exist. */ char_u * get_var_value(name) char_u *name; { VAR v; v = find_var(name, FALSE); if (v == NULL) return NULL; return get_var_string(v); } /* * Allocate a new growarry 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; { if (ga_grow(&ga_scripts, (int)(id - ga_scripts.ga_len)) == OK) { while (ga_scripts.ga_len < id) { vars_init(&SCRIPT_VARS(ga_scripts.ga_len + 1)); ++ga_scripts.ga_len; } } } /* * Initialize internal variables for use. */ void vars_init(gap) garray_T *gap; { ga_init2(gap, (int)sizeof(var), 4); } /* * Clean up a list of internal variables. */ void vars_clear(gap) garray_T *gap; { int i; for (i = gap->ga_len; --i >= 0; ) clear_var(&VAR_GAP_ENTRY(i, gap)); ga_clear(gap); } static void clear_var(v) VAR v; { vim_free(v->v_name); v->v_name = NULL; clear_tv(&v->tv); } /* * List the value of one internal variable. */ static void list_one_var(v, prefix) VAR v; char_u *prefix; { char_u *tofree; char_u *s; char_u numbuf[NUMBUFLEN]; s = tv2string(&v->tv, &tofree, numbuf); list_one_var_a(prefix, v->v_name, v->tv.v_type, s == NULL ? (char_u *)"" : s); vim_free(tofree); } /* * List the value of one "v:" variable. */ static void list_vim_var(i) int i; /* index in vimvars[] */ { char_u *p; char_u numbuf[NUMBUFLEN]; if (vimvars[i].type == VAR_NUMBER) { p = numbuf; sprintf((char *)p, "%ld", (long)vimvars[i].val); } else if (vimvars[i].val == NULL) p = (char_u *)""; else p = vimvars[i].val; list_one_var_a((char_u *)"v:", (char_u *)vimvars[i].name, vimvars[i].type, p); } static void list_one_var_a(prefix, name, type, string) char_u *prefix; char_u *name; int type; char_u *string; { msg_attr(prefix, 0); /* don't use msg(), it overwrites "v:statusmsg" */ 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 msg_putchar(' '); msg_outtrans(string); if (type == VAR_FUNC) msg_puts((char_u *)"()"); } /* * 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; typeval *tv; int copy; /* make copy of value in "tv" */ { int i; VAR v; char_u *varname; garray_T *gap; /* * Handle setting internal v: variables. */ i = find_vim_var(name, (int)STRLEN(name)); if (i >= 0) { if (vimvars[i].flags & VV_RO) EMSG2(_(e_readonlyvar), name); else if ((vimvars[i].flags & VV_RO_SBX) && sandbox) EMSG2(_(e_readonlysbx), name); else { if (vimvars[i].type == VAR_STRING) { vim_free(vimvars[i].val); if (copy || tv->v_type != VAR_STRING) vimvars[i].val = vim_strsave(get_tv_string(tv)); else { /* Take over the string to avoid an extra alloc/free. */ vimvars[i].val = tv->vval.v_string; tv->vval.v_string = NULL; } } else vimvars[i].val = (char_u *)get_tv_number(tv); } return; } if (tv->v_type == VAR_FUNC) { if (!(vim_strchr((char_u *)"wbs", name[0]) != NULL && name[1] == ':') && !ASCII_ISUPPER((name[0] != NUL && name[1] == ':') ? name[2] : name[0])) { EMSG2(_("E999: Funcref variable name must start with a capital: %s"), name); return; } if (function_exists(name)) { EMSG2(_("E999: Variable name conflicts with existing function: %s"), name); return; } } v = find_var(name, TRUE); if (v != NULL) /* existing variable, only need to free string */ { if (v->tv.v_type != tv->v_type && !((v->tv.v_type == VAR_STRING || v->tv.v_type == VAR_NUMBER) && (tv->v_type == VAR_STRING || tv->v_type == VAR_NUMBER))) { EMSG2(_("E999: Variable type mismatch for: %s"), name); return; } clear_tv(&v->tv); } else /* add a new variable */ { gap = find_var_ga(name, &varname); if (gap == NULL) /* illegal name */ { EMSG2(_("E461: Illegal variable name: %s"), name); return; } /* Try to use an empty entry */ for (i = gap->ga_len; --i >= 0; ) if (VAR_GAP_ENTRY(i, gap).v_name == NULL) break; if (i < 0) /* need to allocate more room */ { if (ga_grow(gap, 1) == FAIL) return; i = gap->ga_len; } v = &VAR_GAP_ENTRY(i, gap); if ((v->v_name = vim_strsave(varname)) == NULL) return; if (i == gap->ga_len) ++gap->ga_len; } if (copy || tv->v_type == VAR_NUMBER) copy_tv(tv, &v->tv); else { v->tv = *tv; init_tv(tv); } } /* * Copy the values from typeval "from" to typeval "to". * When needed allocates string or increases reference count. * Does not make a copy of a list! */ static void copy_tv(from, to) typeval *from; typeval *to; { to->v_type = from->v_type; switch (from->v_type) { case VAR_NUMBER: to->vval.v_number = from->vval.v_number; break; 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); 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; default: EMSG2(_(e_intern2), "copy_tv()"); break; } } /* * ":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; typeval 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) { 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); break; } 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) msg_start(); } else if (eap->cmdidx == CMD_echo) msg_puts_attr((char_u *)" ", echo_attr); for (p = tv2string(&rettv, &tofree, numbuf); *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_check)(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; typeval 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); 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 j; int c; int saved_did_emsg; char_u *name = NULL; char_u *p; char_u *arg; 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; static char_u e_funcexts[] = N_("E122: Function %s already exists, add ! to replace it"); VAR v; /* * ":function" without argument: list functions. */ if (ends_excmd(*eap->arg)) { if (!eap->skip) for (fp = firstfunc; fp != NULL && !got_int; fp = fp->next) list_func_head(fp, FALSE); eap->nextcmd = check_nextcmd(eap->arg); return; } p = eap->arg; name = trans_function_name(&p, eap->skip, FALSE); if (name == NULL && !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()) 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 (vim_strchr(p, '(') == NULL) { if (!ends_excmd(*skipwhite(p))) { EMSG(_(e_trailing)); goto erret_name; } 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->lines.ga_len && !got_int; ++j) { msg_putchar('\n'); msg_outnum((long)(j + 1)); if (j < 9) msg_putchar(' '); if (j < 99) msg_putchar(' '); msg_prt_line(FUNCLINE(fp, j)); out_flush(); /* show a line at a time */ ui_breakcheck(); } if (!got_int) { msg_putchar('\n'); msg_puts((char_u *)" endfunction"); } } else EMSG2(_("E123: Undefined function: %s"), eap->arg); } goto erret_name; } /* * ":function name(arg1, arg2)" Define function. */ p = skipwhite(p); if (*p != '(') { if (!eap->skip) { EMSG2(_("E124: Missing '(': %s"), eap->arg); goto erret_name; } /* 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); /* * 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; ((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; } } ++p; /* skip the ')' */ /* find extra arguments "range" and "abort" */ for (;;) { p = skipwhite(p); if (STRNCMP(p, "range", 5) == 0) { flags |= FC_RANGE; p += 5; } else if (STRNCMP(p, "abort", 5) == 0) { flags |= FC_ABORT; p += 5; } else break; } if (*p != NUL && *p != '"' && *p != '\n' && !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 && find_func(name) != NULL) EMSG2(_(e_funcexts), name); msg_putchar('\n'); /* don't overwrite the function name */ cmdline_row = msg_row; } indent = 2; nesting = 0; for (;;) { msg_scroll = TRUE; need_wait_return = FALSE; 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; } 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" (should be more strict...). */ if (STRNCMP(p, "endf", 4) == 0 && nesting-- == 0) { vim_free(theline); break; } /* Increase indent inside "if", "while", 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, "try", 3) == 0) indent += 2; /* Check for defining a function inside this function. */ if (STRNCMP(p, "fu", 2) == 0) { p = skipwhite(skiptowhite(p)); p += eval_fname_script(p); if (ASCII_ISALPHA(*p)) { vim_free(trans_function_name(&p, TRUE, FALSE)); 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] == '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) == FAIL) goto erret; ((char_u **)(newlines.ga_data))[newlines.ga_len] = theline; newlines.ga_len++; } /* 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 */ v = find_var(name, FALSE); if (v != NULL && v->tv.v_type == VAR_FUNC) { EMSG2(_("E999: Function name conflicts with variable: %s"), name); goto erret; } fp = find_func(name); if (fp != NULL) { if (!eap->forceit) { EMSG2(_(e_funcexts), name); goto erret; } if (fp->calls) { EMSG2(_("E127: Cannot redefine function %s: It is in use"), name); goto erret; } /* redefine existing function */ ga_clear_strings(&(fp->args)); ga_clear_strings(&(fp->lines)); vim_free(name); } else { fp = (ufunc_T *)alloc((unsigned)sizeof(ufunc_T)); if (fp == NULL) goto erret; /* insert the new function in the function list */ fp->next = firstfunc; firstfunc = fp; fp->name = name; } fp->args = newargs; fp->lines = newlines; fp->varargs = varargs; fp->flags = flags; fp->calls = 0; fp->script_ID = current_SID; did_emsg |= saved_did_emsg; vim_free(skip_until); return; erret: vim_free(skip_until); ga_clear_strings(&newargs); ga_clear_strings(&newlines); erret_name: vim_free(name); did_emsg |= saved_did_emsg; } /* * Get a function name, translating "<SID>" and "<SNR>". * Returns the function name in allocated memory, or NULL for failure. * Advances "pp" to just after the function name (if no error). */ static char_u * trans_function_name(pp, skip, internal) char_u **pp; int skip; /* only find the end, don't evaluate */ int internal; /* TRUE if internal function name OK */ { char_u *name; char_u *start; char_u *end; int lead; char_u sid_buf[20]; char_u *temp_string = NULL; char_u *expr_start, *expr_end; int len; /* A name starting with "<SID>" or "<SNR>" is local to a script. */ start = *pp; lead = eval_fname_script(start); if (lead > 0) start += lead; end = find_name_end(start, &expr_start, &expr_end, FALSE); if (end == start) { if (!skip) EMSG(_("E129: Function name required")); return NULL; } if (expr_start != NULL && !skip) { /* expand magic curlies */ temp_string = make_expanded_name(start, expr_start, expr_end, end); if (temp_string == 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()) EMSG2(_(e_invarg2), start); else *pp = end; return NULL; } start = temp_string; len = (int)STRLEN(temp_string); } else len = (int)(end - start); /* * 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 (eval_fname_sid(*pp)) /* If it's "<SID>" */ { if (current_SID <= 0) { EMSG(_(e_usingsid)); return NULL; } sprintf((char *)sid_buf, "%ld_", (long)current_SID); lead += (int)STRLEN(sid_buf); } } else if (!internal && !ASCII_ISUPPER(*start)) { EMSG2(_("E128: Function name must start with a capital: %s"), start); return NULL; } 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 (eval_fname_sid(*pp)) /* If it's "<SID>" */ STRCPY(name + 3, sid_buf); } mch_memmove(name + lead, start, (size_t)len); name[len + lead] = NUL; } *pp = end; vim_free(temp_string); 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; { if (p[0] == '<' && (STRNICMP(p + 1, "SID>", 4) == 0 || 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->name[0] == K_SPECIAL) { MSG_PUTS_ATTR("<SNR>", hl_attr(HLF_8)); msg_puts(fp->name + 3); } else msg_puts(fp->name); msg_putchar('('); for (j = 0; j < fp->args.ga_len; ++j) { if (j) MSG_PUTS(", "); msg_puts(FUNCARG(fp, j)); } if (fp->varargs) { if (j) MSG_PUTS(", "); MSG_PUTS("..."); } msg_putchar(')'); } /* * 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; { ufunc_T *fp; for (fp = firstfunc; fp != NULL; fp = fp->next) if (STRCMP(name, fp->name) == 0) break; return fp; } /* * Return TRUE if a function "name" exists. */ static int function_exists(name) char_u *name; { char_u *p = name; int n = FALSE; p = trans_function_name(&p, FALSE, TRUE); if (p != NULL) { if (ASCII_ISUPPER(*p) || p[0] == K_SPECIAL) n = (find_func(p) != NULL); else if (ASCII_ISLOWER(*p)) n = (find_internal_func(p) >= 0); vim_free(p); } return n; } #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 ufunc_T *fp = NULL; if (idx == 0) fp = firstfunc; if (fp != NULL) { if (STRLEN(fp->name) + 4 >= IOSIZE) return fp->name; /* prevents overflow */ cat_func_name(IObuff, fp); if (xp->xp_context != EXPAND_USER_FUNC) { STRCAT(IObuff, "("); if (!fp->varargs && fp->args.ga_len == 0) STRCAT(IObuff, ")"); } fp = fp->next; 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->name[0] == K_SPECIAL) { STRCPY(buf, "<SNR>"); STRCAT(buf, fp->name + 3); } else STRCPY(buf, fp->name); } /* * ":delfunction {name}" */ void ex_delfunction(eap) exarg_T *eap; { ufunc_T *fp = NULL, *pfp; char_u *p; char_u *name; p = eap->arg; name = trans_function_name(&p, eap->skip, FALSE); if (name == NULL) 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(_("E130: Undefined function: %s"), eap->arg); return; } if (fp->calls) { EMSG2(_("E131: Cannot delete function %s: It is in use"), eap->arg); return; } /* clear this function */ vim_free(fp->name); ga_clear_strings(&(fp->args)); ga_clear_strings(&(fp->lines)); /* remove the function from the function list */ if (firstfunc == fp) firstfunc = fp->next; else { for (pfp = firstfunc; pfp != NULL; pfp = pfp->next) if (pfp->next == fp) { pfp->next = fp->next; break; } } vim_free(fp); } } /* * Call a user function. */ static void call_user_func(fp, argcount, argvars, rettv, firstline, lastline) ufunc_T *fp; /* pointer to function */ int argcount; /* nr of args */ typeval *argvars; /* arguments */ typeval *rettv; /* return value */ linenr_T firstline; /* first line of range */ linenr_T lastline; /* last line of range */ { char_u *save_sourcing_name; linenr_T save_sourcing_lnum; scid_T save_current_SID; struct funccall fc; struct funccall *save_fcp = current_funccal; int save_did_emsg; static int depth = 0; /* 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 */ /* set local variables */ vars_init(&fc.l_vars); fc.func = fp; fc.argcount = argcount; fc.argvars = argvars; fc.rettv = rettv; rettv->vval.v_number = 0; fc.linenr = 0; fc.returned = FALSE; fc.level = ex_nesting_level; fc.a0_var.tv.v_type = VAR_NUMBER; fc.a0_var.tv.vval.v_number = argcount - fp->args.ga_len; fc.a0_var.v_name = NULL; current_funccal = &fc; fc.firstline.tv.v_type = VAR_NUMBER; fc.firstline.tv.vval.v_number = firstline; fc.firstline.v_name = NULL; fc.lastline.tv.v_type = VAR_NUMBER; fc.lastline.tv.vval.v_number = lastline; fc.lastline.v_name = NULL; /* Check if this function has a breakpoint. */ fc.breakpoint = dbg_find_breakpoint(FALSE, fp->name, (linenr_T)0); fc.dbg_tick = debug_tick; /* Don't redraw while executing the function. */ ++RedrawingDisabled; save_sourcing_name = sourcing_name; save_sourcing_lnum = sourcing_lnum; sourcing_lnum = 1; sourcing_name = alloc((unsigned)((save_sourcing_name == NULL ? 0 : STRLEN(save_sourcing_name)) + STRLEN(fp->name) + 13)); if (sourcing_name != NULL) { if (save_sourcing_name != NULL && STRNCMP(save_sourcing_name, "function ", 9) == 0) sprintf((char *)sourcing_name, "%s..", save_sourcing_name); else STRCPY(sourcing_name, "function "); cat_func_name(sourcing_name + STRLEN(sourcing_name), fp); if (p_verbose >= 12) { ++no_wait_return; msg_scroll = TRUE; /* always scroll up, don't overwrite */ msg_str((char_u *)_("calling %s"), sourcing_name); if (p_verbose >= 14) { int i; char_u buf[MSG_BUF_LEN]; 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 { trunc_string(get_tv_string(&argvars[i]), buf, MSG_BUF_LEN); msg_puts((char_u *)"\""); msg_puts(buf); msg_puts((char_u *)"\""); } } msg_puts((char_u *)")"); } msg_puts((char_u *)"\n"); /* don't overwrite this either */ cmdline_row = msg_row; --no_wait_return; } } save_current_SID = current_SID; current_SID = fp->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->flags & FC_ABORT)) || rettv->v_type == VAR_UNKNOWN) { clear_tv(rettv); rettv->v_type = VAR_NUMBER; rettv->vval.v_number = -1; } /* when being verbose, mention the return value */ if (p_verbose >= 12) { char_u *sn, *val; ++no_wait_return; msg_scroll = TRUE; /* always scroll up, don't overwrite */ /* Make sure the output fits in IObuff. */ sn = sourcing_name; if (STRLEN(sourcing_name) > IOSIZE / 2 - 50) sn = sourcing_name + STRLEN(sourcing_name) - (IOSIZE / 2 - 50); if (aborting()) smsg((char_u *)_("%s aborted"), sn); else if (fc.rettv->v_type == VAR_NUMBER) smsg((char_u *)_("%s returning #%ld"), sn, (long)fc.rettv->vval.v_number); else if (fc.rettv->v_type == VAR_STRING) { val = get_tv_string(fc.rettv); if (STRLEN(val) > IOSIZE / 2 - 50) val = val + STRLEN(val) - (IOSIZE / 2 - 50); smsg((char_u *)_("%s returning \"%s\""), sn, val); } msg_puts((char_u *)"\n"); /* don't overwrite this either */ cmdline_row = msg_row; --no_wait_return; } vim_free(sourcing_name); sourcing_name = save_sourcing_name; sourcing_lnum = save_sourcing_lnum; current_SID = save_current_SID; if (p_verbose >= 12 && sourcing_name != NULL) { ++no_wait_return; msg_scroll = TRUE; /* always scroll up, don't overwrite */ msg_str((char_u *)_("continuing in %s"), sourcing_name); msg_puts((char_u *)"\n"); /* don't overwrite this either */ cmdline_row = msg_row; --no_wait_return; } did_emsg |= save_did_emsg; current_funccal = save_fcp; vars_clear(&fc.l_vars); /* free all local variables */ --depth; } /* * ":return [expr]" */ void ex_return(eap) exarg_T *eap; { char_u *arg = eap->arg; typeval 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 typeval * 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) *(typeval *)cstack->cs_rettv[idx] = *(typeval *)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 = *(typeval *)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((typeval *)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; char_u *tofree = NULL; char_u numbuf[NUMBUFLEN]; if (rettv == NULL) s = (char_u *)""; else s = tv2string((typeval *)rettv, &tofree, numbuf); 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. */ /* ARGSUSED */ char_u * get_func_line(c, cookie, indent) int c; /* not used */ void *cookie; int indent; /* not used */ { struct funccall *fcp = (struct funccall *)cookie; 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, fcp->func->name, sourcing_lnum); fcp->dbg_tick = debug_tick; } gap = &fcp->func->lines; if ((fcp->func->flags & FC_ABORT) && did_emsg && !aborted_in_try()) retval = NULL; else if (fcp->returned || fcp->linenr >= gap->ga_len) retval = NULL; else { retval = vim_strsave(((char_u **)(gap->ga_data))[fcp->linenr++]); sourcing_lnum = fcp->linenr; } /* Did we encounter a breakpoint? */ if (fcp->breakpoint != 0 && fcp->breakpoint <= sourcing_lnum) { dbg_breakpoint(fcp->func->name, sourcing_lnum); /* Find next breakpoint. */ fcp->breakpoint = dbg_find_breakpoint(FALSE, fcp->func->name, sourcing_lnum); fcp->dbg_tick = debug_tick; } return retval; } /* * Return TRUE if the currently active function should be ended, because a * return was encountered or an error occured. Used inside a ":while". */ int func_has_ended(cookie) void *cookie; { struct funccall *fcp = (struct funccall *)cookie; /* Ignore the "abort" flag if the abortion behavior has been changed due to * an error inside a try conditional. */ return (((fcp->func->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 ((struct funccall *)cookie)->func->flags & FC_ABORT; } #if defined(FEAT_VIMINFO) || defined(FEAT_SESSION) typedef enum { VAR_FLAVOUR_DEFAULT, VAR_FLAVOUR_SESSION, VAR_FLAVOUR_VIMINFO } var_flavour_T; static var_flavour_T var_flavour __ARGS((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 is_string = FALSE; typeval tv; if (!writing && (find_viminfo_parameter('!') != NULL)) { tab = vim_strchr(virp->vir_line + 1, '\t'); if (tab != NULL) { *tab++ = '\0'; /* isolate the variable name */ if (*tab == 'S') /* string var */ is_string = TRUE; tab = vim_strchr(tab, '\t'); if (tab != NULL) { if (is_string) { tv.v_type = VAR_STRING; tv.vval.v_string = viminfo_readstring(virp, (int)(tab - virp->vir_line + 1), TRUE); } else { tv.v_type = VAR_NUMBER; tv.vval.v_number = atol((char *)tab + 1); } set_var(virp->vir_line + 1, &tv, FALSE); if (is_string) vim_free(tv.vval.v_string); } } } return viminfo_readline(virp); } /* * Write global vars that start with a capital to the viminfo file */ void write_viminfo_varlist(fp) FILE *fp; { garray_T *gap = &variables; /* global variable */ VAR this_var; int i; char *s; char_u *tofree; char_u numbuf[NUMBUFLEN]; if (find_viminfo_parameter('!') == NULL) return; fprintf(fp, _("\n# global variables:\n")); for (i = gap->ga_len; --i >= 0; ) { this_var = &VAR_GAP_ENTRY(i, gap); if (this_var->v_name != NULL && var_flavour(this_var->v_name) == VAR_FLAVOUR_VIMINFO) { switch (this_var->tv.v_type) { case VAR_STRING: s = "STR"; break; case VAR_NUMBER: s = "NUM"; break; default: continue; } fprintf(fp, "!%s\t%s\t", this_var->v_name, s); viminfo_writestring(fp, tv2string(&this_var->tv, &tofree, numbuf)); vim_free(tofree); } } } #endif #if defined(FEAT_SESSION) || defined(PROTO) int store_session_globals(fd) FILE *fd; { garray_T *gap = &variables; /* global variable */ VAR this_var; int i; char_u *p, *t; for (i = gap->ga_len; --i >= 0; ) { this_var = &VAR_GAP_ENTRY(i, gap); if (this_var->v_name != NULL && (this_var->tv.v_type == VAR_NUMBER || this_var->tv.v_type == VAR_STRING) && var_flavour(this_var->v_name) == VAR_FLAVOUR_SESSION) { /* Escape special characters with a backslash. Turn a LF and * CR into \n and \r. */ p = vim_strsave_escaped(get_var_string(this_var), (char_u *)"\\\"\n\r"); if (p == NULL) /* out of memory */ continue; 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->v_name, (this_var->tv.v_type == VAR_STRING) ? '"' : ' ', p, (this_var->tv.v_type == VAR_STRING) ? '"' : ' ') < 0) || put_eol(fd) == FAIL) { vim_free(p); return FAIL; } vim_free(p); } } return OK; } #endif #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 __ARGS((char_u **fnamep, char_u **bufp, int *fnamelen)); static int shortpath_for_invalid_fname __ARGS((char_u **fname, char_u **bufp, int *fnamelen)); static int shortpath_for_partial __ARGS((char_u **fnamep, char_u **bufp, int *fnamelen)); /* * Get the short pathname of a file. * Returns 1 on success. *fnamelen is 0 for nonexistant path. */ 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 0; vim_free(*bufp); *fnamep = *bufp = newbuf; l = GetShortPathName(*fnamep,*fnamep,l+1); /* Really should always succeed, as the buffer is big enough */ } *fnamelen = l; return 1; } /* * Create a short path name. Returns the length of the buffer it needs. * Doesn't copy over the end of the buffer passed in. */ static int shortpath_for_invalid_fname(fname, bufp, fnamelen) char_u **fname; char_u **bufp; int *fnamelen; { char_u *s, *p, *pbuf2, *pbuf3; char_u ch; int l,len,len2,plen,slen; /* Make a copy */ len2 = *fnamelen; pbuf2 = vim_strnsave(*fname, len2); pbuf3 = NULL; s = pbuf2 + len2 - 1; /* Find the end */ slen = 1; plen = len2; l = 0; if (after_pathsep(pbuf2, s + 1)) { --s; ++slen; --plen; } do { /* Go back one path-seperator */ while (s > pbuf2 && !after_pathsep(pbuf2, s + 1)) { --s; ++slen; --plen; } if (s <= pbuf2) break; /* Remeber the character that is about to be blatted */ ch = *s; *s = 0; /* get_short_pathname requires a null-terminated string */ /* Try it in situ */ p = pbuf2; if (!get_short_pathname(&p, &pbuf3, &plen)) { vim_free(pbuf2); return -1; } *s = ch; /* Preserve the string */ } while (plen == 0); if (plen > 0) { /* Remeber the length of the new string. */ *fnamelen = len = plen + slen; vim_free(*bufp); if (len > len2) { /* If there's not enough space in the currently allocated string, * then copy it to a buffer big enough. */ *fname= *bufp = vim_strnsave(p, len); if (*fname == NULL) return -1; } else { /* Transfer pbuf2 to being the main buffer (it's big enough) */ *fname = *bufp = pbuf2; if (p != pbuf2) strncpy(*fname, p, plen); pbuf2 = NULL; } /* Concat the next bit */ strncpy(*fname + plen, s, slen); (*fname)[len] = '\0'; } vim_free(pbuf3); vim_free(pbuf2); return 0; } /* * Get a pathname for a partial path. */ 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 seperators 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 = STRLEN(tfname); if (!get_short_pathname(&tfname, &pbuf, &len)) return -1; 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) == -1) return -1; } /* 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 -1; } 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 0; } #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. * 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 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; } /* 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)) --tail; *fnamelen = (int)(tail - *fnamep); #ifdef VMS if (*fnamelen > 0) *fnamelen += 1; /* the path separator is part of the path */ #endif 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 /* Check shortname after we have done 'heads' and before we do 'tails' */ if (has_shortname) { pbuf = NULL; /* Copy the string if it is shortened by :h */ if (*fnamelen < (int)STRLEN(*fnamep)) { p = vim_strnsave(*fnamep, *fnamelen); if (p == 0) 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) == -1) return -1; } else { int l; /* Simple case, already have the full-name * Nearly always shorter, so try first time. */ l = *fnamelen; if (!get_short_pathname(fnamep, bufp, &l)) return -1; if (l == 0) { /* Couldn't find the filename.. search the paths. */ l = *fnamelen; if (shortpath_for_invalid_fname(fnamep, bufp, &l ) == -1) 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; } } 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; garray_T ga; char_u *ret; char_u *save_cpo; /* Make 'cpoptions' empty, so that the 'l' flag doesn't work here */ save_cpo = p_cpo; p_cpo = (char_u *)""; 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; while (vim_regexec_nl(®match, str, (colnr_T)(tail - str))) { /* * 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)(STRLEN(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; /* avoid getting stuck on a match with an empty string */ if (tail == regmatch.endp[0]) { if (*tail == NUL) break; *((char_u *)ga.ga_data + ga.ga_len) = *tail++; ++ga.ga_len; } else { 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_free(regmatch.regprog); } ret = vim_strsave(ga.ga_data == NULL ? str : (char_u *)ga.ga_data); ga_clear(&ga); p_cpo = save_cpo; return ret; } #endif /* defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) */