Mercurial > vim
view src/if_cscope.c @ 8030:05f57db9d8da
Added tag v7.4.1309 for changeset 770dd91ad9f7d0b2eda796b5b720e192c1ced83e
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Sat, 13 Feb 2016 14:15:04 +0100 |
parents | bcef391c101c |
children | b6cb94ad97a4 |
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/* vi:set ts=8 sts=4 sw=4: * * CSCOPE support for Vim added by Andy Kahn <kahn@zk3.dec.com> * Ported to Win32 by Sergey Khorev <sergey.khorev@gmail.com> * * The basic idea/structure of cscope for Vim was borrowed from Nvi. There * might be a few lines of code that look similar to what Nvi has. * * See README.txt for an overview of the Vim source code. */ #include "vim.h" #if defined(FEAT_CSCOPE) || defined(PROTO) #include <sys/types.h> #include <sys/stat.h> #if defined(UNIX) # include <sys/wait.h> #endif #include "if_cscope.h" static void cs_usage_msg(csid_e x); static int cs_add(exarg_T *eap); static void cs_stat_emsg(char *fname); static int cs_add_common(char *, char *, char *); static int cs_check_for_connections(void); static int cs_check_for_tags(void); static int cs_cnt_connections(void); static void cs_reading_emsg(int idx); static int cs_cnt_matches(int idx); static char * cs_create_cmd(char *csoption, char *pattern); static int cs_create_connection(int i); static void do_cscope_general(exarg_T *eap, int make_split); #ifdef FEAT_QUICKFIX static void cs_file_results(FILE *, int *); #endif static void cs_fill_results(char *, int , int *, char ***, char ***, int *); static int cs_find(exarg_T *eap); static int cs_find_common(char *opt, char *pat, int, int, int, char_u *cmdline); static int cs_help(exarg_T *eap); static void clear_csinfo(int i); static int cs_insert_filelist(char *, char *, char *, struct stat *); static int cs_kill(exarg_T *eap); static void cs_kill_execute(int, char *); static cscmd_T * cs_lookup_cmd(exarg_T *eap); static char * cs_make_vim_style_matches(char *, char *, char *, char *); static char * cs_manage_matches(char **, char **, int, mcmd_e); static char * cs_parse_results(int cnumber, char *buf, int bufsize, char **context, char **linenumber, char **search); static char * cs_pathcomponents(char *path); static void cs_print_tags_priv(char **, char **, int); static int cs_read_prompt(int); static void cs_release_csp(int, int freefnpp); static int cs_reset(exarg_T *eap); static char * cs_resolve_file(int, char *); static int cs_show(exarg_T *eap); static csinfo_T * csinfo = NULL; static int csinfo_size = 0; /* number of items allocated in csinfo[] */ static int eap_arg_len; /* length of eap->arg, set in cs_lookup_cmd() */ static cscmd_T cs_cmds[] = { { "add", cs_add, N_("Add a new database"), "add file|dir [pre-path] [flags]", 0 }, { "find", cs_find, N_("Query for a pattern"), "find c|d|e|f|g|i|s|t name", 1 }, { "help", cs_help, N_("Show this message"), "help", 0 }, { "kill", cs_kill, N_("Kill a connection"), "kill #", 0 }, { "reset", cs_reset, N_("Reinit all connections"), "reset", 0 }, { "show", cs_show, N_("Show connections"), "show", 0 }, { NULL, NULL, NULL, NULL, 0 } }; static void cs_usage_msg(csid_e x) { (void)EMSG2(_("E560: Usage: cs[cope] %s"), cs_cmds[(int)x].usage); } #if defined(FEAT_CMDL_COMPL) || defined(PROTO) static enum { EXP_CSCOPE_SUBCMD, /* expand ":cscope" sub-commands */ EXP_SCSCOPE_SUBCMD, /* expand ":scscope" sub-commands */ EXP_CSCOPE_FIND, /* expand ":cscope find" arguments */ EXP_CSCOPE_KILL /* expand ":cscope kill" arguments */ } expand_what; /* * Function given to ExpandGeneric() to obtain the cscope command * expansion. */ char_u * get_cscope_name(expand_T *xp UNUSED, int idx) { int current_idx; int i; switch (expand_what) { case EXP_CSCOPE_SUBCMD: /* Complete with sub-commands of ":cscope": * add, find, help, kill, reset, show */ return (char_u *)cs_cmds[idx].name; case EXP_SCSCOPE_SUBCMD: /* Complete with sub-commands of ":scscope": same sub-commands as * ":cscope" but skip commands which don't support split windows */ for (i = 0, current_idx = 0; cs_cmds[i].name != NULL; i++) if (cs_cmds[i].cansplit) if (current_idx++ == idx) break; return (char_u *)cs_cmds[i].name; case EXP_CSCOPE_FIND: { const char *query_type[] = { "c", "d", "e", "f", "g", "i", "s", "t", NULL }; /* Complete with query type of ":cscope find {query_type}". * {query_type} can be letters (c, d, ... t) or numbers (0, 1, * ..., 8) but only complete with letters, since numbers are * redundant. */ return (char_u *)query_type[idx]; } case EXP_CSCOPE_KILL: { static char connection[5]; /* ":cscope kill" accepts connection numbers or partial names of * the pathname of the cscope database as argument. Only complete * with connection numbers. -1 can also be used to kill all * connections. */ for (i = 0, current_idx = 0; i < csinfo_size; i++) { if (csinfo[i].fname == NULL) continue; if (current_idx++ == idx) { vim_snprintf(connection, sizeof(connection), "%d", i); return (char_u *)connection; } } return (current_idx == idx && idx > 0) ? (char_u *)"-1" : NULL; } default: return NULL; } } /* * Handle command line completion for :cscope command. */ void set_context_in_cscope_cmd( expand_T *xp, char_u *arg, cmdidx_T cmdidx) { char_u *p; /* Default: expand subcommands */ xp->xp_context = EXPAND_CSCOPE; xp->xp_pattern = arg; expand_what = (cmdidx == CMD_scscope) ? EXP_SCSCOPE_SUBCMD : EXP_CSCOPE_SUBCMD; /* (part of) subcommand already typed */ if (*arg != NUL) { p = skiptowhite(arg); if (*p != NUL) /* past first word */ { xp->xp_pattern = skipwhite(p); if (*skiptowhite(xp->xp_pattern) != NUL) xp->xp_context = EXPAND_NOTHING; else if (STRNICMP(arg, "add", p - arg) == 0) xp->xp_context = EXPAND_FILES; else if (STRNICMP(arg, "kill", p - arg) == 0) expand_what = EXP_CSCOPE_KILL; else if (STRNICMP(arg, "find", p - arg) == 0) expand_what = EXP_CSCOPE_FIND; else xp->xp_context = EXPAND_NOTHING; } } } #endif /* FEAT_CMDL_COMPL */ /* * PRIVATE: do_cscope_general * * Find the command, print help if invalid, and then call the corresponding * command function. */ static void do_cscope_general( exarg_T *eap, int make_split) /* whether to split window */ { cscmd_T *cmdp; if ((cmdp = cs_lookup_cmd(eap)) == NULL) { cs_help(eap); return; } #ifdef FEAT_WINDOWS if (make_split) { if (!cmdp->cansplit) { (void)MSG_PUTS(_("This cscope command does not support splitting the window.\n")); return; } postponed_split = -1; postponed_split_flags = cmdmod.split; postponed_split_tab = cmdmod.tab; } #endif cmdp->func(eap); #ifdef FEAT_WINDOWS postponed_split_flags = 0; postponed_split_tab = 0; #endif } /* * PUBLIC: do_cscope */ void do_cscope(exarg_T *eap) { do_cscope_general(eap, FALSE); } /* * PUBLIC: do_scscope * * same as do_cscope, but splits window, too. */ void do_scscope(exarg_T *eap) { do_cscope_general(eap, TRUE); } /* * PUBLIC: do_cstag * */ void do_cstag(exarg_T *eap) { int ret = FALSE; if (*eap->arg == NUL) { (void)EMSG(_("E562: Usage: cstag <ident>")); return; } switch (p_csto) { case 0 : if (cs_check_for_connections()) { ret = cs_find_common("g", (char *)(eap->arg), eap->forceit, FALSE, FALSE, *eap->cmdlinep); if (ret == FALSE) { cs_free_tags(); if (msg_col) msg_putchar('\n'); if (cs_check_for_tags()) ret = do_tag(eap->arg, DT_JUMP, 0, eap->forceit, FALSE); } } else if (cs_check_for_tags()) { ret = do_tag(eap->arg, DT_JUMP, 0, eap->forceit, FALSE); } break; case 1 : if (cs_check_for_tags()) { ret = do_tag(eap->arg, DT_JUMP, 0, eap->forceit, FALSE); if (ret == FALSE) { if (msg_col) msg_putchar('\n'); if (cs_check_for_connections()) { ret = cs_find_common("g", (char *)(eap->arg), eap->forceit, FALSE, FALSE, *eap->cmdlinep); if (ret == FALSE) cs_free_tags(); } } } else if (cs_check_for_connections()) { ret = cs_find_common("g", (char *)(eap->arg), eap->forceit, FALSE, FALSE, *eap->cmdlinep); if (ret == FALSE) cs_free_tags(); } break; default : break; } if (!ret) { (void)EMSG(_("E257: cstag: tag not found")); #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX) g_do_tagpreview = 0; #endif } } /* do_cscope */ /* * PUBLIC: cs_find * * this simulates a vim_fgets(), but for cscope, returns the next line * from the cscope output. should only be called from find_tags() * * returns TRUE if eof, FALSE otherwise */ int cs_fgets(char_u *buf, int size) { char *p; if ((p = cs_manage_matches(NULL, NULL, -1, Get)) == NULL) return TRUE; vim_strncpy(buf, (char_u *)p, size - 1); return FALSE; } /* cs_fgets */ /* * PUBLIC: cs_free_tags * * called only from do_tag(), when popping the tag stack */ void cs_free_tags(void) { cs_manage_matches(NULL, NULL, -1, Free); } /* * PUBLIC: cs_print_tags * * called from do_tag() */ void cs_print_tags(void) { cs_manage_matches(NULL, NULL, -1, Print); } /* * "cscope_connection([{num} , {dbpath} [, {prepend}]])" function * * Checks for the existence of a |cscope| connection. If no * parameters are specified, then the function returns: * * 0, if cscope was not available (not compiled in), or if there * are no cscope connections; or * 1, if there is at least one cscope connection. * * If parameters are specified, then the value of {num} * determines how existence of a cscope connection is checked: * * {num} Description of existence check * ----- ------------------------------ * 0 Same as no parameters (e.g., "cscope_connection()"). * 1 Ignore {prepend}, and use partial string matches for * {dbpath}. * 2 Ignore {prepend}, and use exact string matches for * {dbpath}. * 3 Use {prepend}, use partial string matches for both * {dbpath} and {prepend}. * 4 Use {prepend}, use exact string matches for both * {dbpath} and {prepend}. * * Note: All string comparisons are case sensitive! */ #if defined(FEAT_EVAL) || defined(PROTO) int cs_connection(int num, char_u *dbpath, char_u *ppath) { int i; if (num < 0 || num > 4 || (num > 0 && !dbpath)) return FALSE; for (i = 0; i < csinfo_size; i++) { if (!csinfo[i].fname) continue; if (num == 0) return TRUE; switch (num) { case 1: if (strstr(csinfo[i].fname, (char *)dbpath)) return TRUE; break; case 2: if (strcmp(csinfo[i].fname, (char *)dbpath) == 0) return TRUE; break; case 3: if (strstr(csinfo[i].fname, (char *)dbpath) && ((!ppath && !csinfo[i].ppath) || (ppath && csinfo[i].ppath && strstr(csinfo[i].ppath, (char *)ppath)))) return TRUE; break; case 4: if ((strcmp(csinfo[i].fname, (char *)dbpath) == 0) && ((!ppath && !csinfo[i].ppath) || (ppath && csinfo[i].ppath && (strcmp(csinfo[i].ppath, (char *)ppath) == 0)))) return TRUE; break; } } return FALSE; } /* cs_connection */ #endif /* * PRIVATE functions ****************************************************************************/ /* * PRIVATE: cs_add * * add cscope database or a directory name (to look for cscope.out) * to the cscope connection list * * MAXPATHL 256 */ static int cs_add(exarg_T *eap UNUSED) { char *fname, *ppath, *flags = NULL; if ((fname = strtok((char *)NULL, (const char *)" ")) == NULL) { cs_usage_msg(Add); return CSCOPE_FAILURE; } if ((ppath = strtok((char *)NULL, (const char *)" ")) != NULL) flags = strtok((char *)NULL, (const char *)" "); return cs_add_common(fname, ppath, flags); } static void cs_stat_emsg(char *fname) { char *stat_emsg = _("E563: stat(%s) error: %d"); char *buf = (char *)alloc((unsigned)strlen(stat_emsg) + MAXPATHL + 10); if (buf != NULL) { (void)sprintf(buf, stat_emsg, fname, errno); (void)EMSG(buf); vim_free(buf); } else (void)EMSG(_("E563: stat error")); } /* * PRIVATE: cs_add_common * * the common routine to add a new cscope connection. called by * cs_add() and cs_reset(). i really don't like to do this, but this * routine uses a number of goto statements. */ static int cs_add_common( char *arg1, /* filename - may contain environment variables */ char *arg2, /* prepend path - may contain environment variables */ char *flags) { struct stat statbuf; int ret; char *fname = NULL; char *fname2 = NULL; char *ppath = NULL; int i; #ifdef FEAT_MODIFY_FNAME int len; int usedlen = 0; char_u *fbuf = NULL; #endif /* get the filename (arg1), expand it, and try to stat it */ if ((fname = (char *)alloc(MAXPATHL + 1)) == NULL) goto add_err; expand_env((char_u *)arg1, (char_u *)fname, MAXPATHL); #ifdef FEAT_MODIFY_FNAME len = (int)STRLEN(fname); fbuf = (char_u *)fname; (void)modify_fname((char_u *)":p", &usedlen, (char_u **)&fname, &fbuf, &len); if (fname == NULL) goto add_err; fname = (char *)vim_strnsave((char_u *)fname, len); vim_free(fbuf); #endif ret = stat(fname, &statbuf); if (ret < 0) { staterr: if (p_csverbose) cs_stat_emsg(fname); goto add_err; } /* get the prepend path (arg2), expand it, and try to stat it */ if (arg2 != NULL) { struct stat statbuf2; if ((ppath = (char *)alloc(MAXPATHL + 1)) == NULL) goto add_err; expand_env((char_u *)arg2, (char_u *)ppath, MAXPATHL); ret = stat(ppath, &statbuf2); if (ret < 0) goto staterr; } /* if filename is a directory, append the cscope database name to it */ if ((statbuf.st_mode & S_IFMT) == S_IFDIR) { fname2 = (char *)alloc((unsigned)(strlen(CSCOPE_DBFILE) + strlen(fname) + 2)); if (fname2 == NULL) goto add_err; while (fname[strlen(fname)-1] == '/' #ifdef WIN32 || fname[strlen(fname)-1] == '\\' #endif ) { fname[strlen(fname)-1] = '\0'; if (fname[0] == '\0') break; } if (fname[0] == '\0') (void)sprintf(fname2, "/%s", CSCOPE_DBFILE); else (void)sprintf(fname2, "%s/%s", fname, CSCOPE_DBFILE); ret = stat(fname2, &statbuf); if (ret < 0) { if (p_csverbose) cs_stat_emsg(fname2); goto add_err; } i = cs_insert_filelist(fname2, ppath, flags, &statbuf); } #if defined(UNIX) else if (S_ISREG(statbuf.st_mode) || S_ISLNK(statbuf.st_mode)) #else /* WIN32 - substitute define S_ISREG from os_unix.h */ else if (((statbuf.st_mode) & S_IFMT) == S_IFREG) #endif { i = cs_insert_filelist(fname, ppath, flags, &statbuf); } else { if (p_csverbose) (void)EMSG2( _("E564: %s is not a directory or a valid cscope database"), fname); goto add_err; } if (i != -1) { if (cs_create_connection(i) == CSCOPE_FAILURE || cs_read_prompt(i) == CSCOPE_FAILURE) { cs_release_csp(i, TRUE); goto add_err; } if (p_csverbose) { msg_clr_eos(); (void)smsg_attr(hl_attr(HLF_R), (char_u *)_("Added cscope database %s"), csinfo[i].fname); } } vim_free(fname); vim_free(fname2); vim_free(ppath); return CSCOPE_SUCCESS; add_err: vim_free(fname2); vim_free(fname); vim_free(ppath); return CSCOPE_FAILURE; } /* cs_add_common */ static int cs_check_for_connections(void) { return (cs_cnt_connections() > 0); } /* cs_check_for_connections */ static int cs_check_for_tags(void) { return (p_tags[0] != NUL && curbuf->b_p_tags != NULL); } /* cs_check_for_tags */ /* * PRIVATE: cs_cnt_connections * * count the number of cscope connections */ static int cs_cnt_connections(void) { short i; short cnt = 0; for (i = 0; i < csinfo_size; i++) { if (csinfo[i].fname != NULL) cnt++; } return cnt; } /* cs_cnt_connections */ static void cs_reading_emsg( int idx) /* connection index */ { EMSGN(_("E262: error reading cscope connection %ld"), idx); } #define CSREAD_BUFSIZE 2048 /* * PRIVATE: cs_cnt_matches * * count the number of matches for a given cscope connection. */ static int cs_cnt_matches(int idx) { char *stok; char *buf; int nlines; buf = (char *)alloc(CSREAD_BUFSIZE); if (buf == NULL) return 0; for (;;) { if (!fgets(buf, CSREAD_BUFSIZE, csinfo[idx].fr_fp)) { if (feof(csinfo[idx].fr_fp)) errno = EIO; cs_reading_emsg(idx); vim_free(buf); return -1; } /* * If the database is out of date, or there's some other problem, * cscope will output error messages before the number-of-lines output. * Display/discard any output that doesn't match what we want. * Accept "\S*cscope: X lines", also matches "mlcscope". */ if ((stok = strtok(buf, (const char *)" ")) == NULL) continue; if (strstr((const char *)stok, "cscope:") == NULL) continue; if ((stok = strtok(NULL, (const char *)" ")) == NULL) continue; nlines = atoi(stok); if (nlines < 0) { nlines = 0; break; } if ((stok = strtok(NULL, (const char *)" ")) == NULL) continue; if (strncmp((const char *)stok, "lines", 5)) continue; break; } vim_free(buf); return nlines; } /* cs_cnt_matches */ /* * PRIVATE: cs_create_cmd * * Creates the actual cscope command query from what the user entered. */ static char * cs_create_cmd(char *csoption, char *pattern) { char *cmd; short search; char *pat; switch (csoption[0]) { case '0' : case 's' : search = 0; break; case '1' : case 'g' : search = 1; break; case '2' : case 'd' : search = 2; break; case '3' : case 'c' : search = 3; break; case '4' : case 't' : search = 4; break; case '6' : case 'e' : search = 6; break; case '7' : case 'f' : search = 7; break; case '8' : case 'i' : search = 8; break; default : (void)EMSG(_("E561: unknown cscope search type")); cs_usage_msg(Find); return NULL; } /* Skip white space before the patter, except for text and pattern search, * they may want to use the leading white space. */ pat = pattern; if (search != 4 && search != 6) while vim_iswhite(*pat) ++pat; if ((cmd = (char *)alloc((unsigned)(strlen(pat) + 2))) == NULL) return NULL; (void)sprintf(cmd, "%d%s", search, pat); return cmd; } /* cs_create_cmd */ /* * PRIVATE: cs_create_connection * * This piece of code was taken/adapted from nvi. do we need to add * the BSD license notice? */ static int cs_create_connection(int i) { #ifdef UNIX int to_cs[2], from_cs[2]; #endif int len; char *prog, *cmd, *ppath = NULL; #ifdef WIN32 int fd; SECURITY_ATTRIBUTES sa; PROCESS_INFORMATION pi; STARTUPINFO si; BOOL pipe_stdin = FALSE, pipe_stdout = FALSE; HANDLE stdin_rd, stdout_rd; HANDLE stdout_wr, stdin_wr; BOOL created; # ifdef __BORLANDC__ # define OPEN_OH_ARGTYPE long # else # if (_MSC_VER >= 1300) # define OPEN_OH_ARGTYPE intptr_t # else # define OPEN_OH_ARGTYPE long # endif # endif #endif #if defined(UNIX) /* * Cscope reads from to_cs[0] and writes to from_cs[1]; vi reads from * from_cs[0] and writes to to_cs[1]. */ to_cs[0] = to_cs[1] = from_cs[0] = from_cs[1] = -1; if (pipe(to_cs) < 0 || pipe(from_cs) < 0) { (void)EMSG(_("E566: Could not create cscope pipes")); err_closing: if (to_cs[0] != -1) (void)close(to_cs[0]); if (to_cs[1] != -1) (void)close(to_cs[1]); if (from_cs[0] != -1) (void)close(from_cs[0]); if (from_cs[1] != -1) (void)close(from_cs[1]); return CSCOPE_FAILURE; } switch (csinfo[i].pid = fork()) { case -1: (void)EMSG(_("E622: Could not fork for cscope")); goto err_closing; case 0: /* child: run cscope. */ if (dup2(to_cs[0], STDIN_FILENO) == -1) PERROR("cs_create_connection 1"); if (dup2(from_cs[1], STDOUT_FILENO) == -1) PERROR("cs_create_connection 2"); if (dup2(from_cs[1], STDERR_FILENO) == -1) PERROR("cs_create_connection 3"); /* close unused */ (void)close(to_cs[1]); (void)close(from_cs[0]); #else /* WIN32 */ /* Create pipes to communicate with cscope */ sa.nLength = sizeof(SECURITY_ATTRIBUTES); sa.bInheritHandle = TRUE; sa.lpSecurityDescriptor = NULL; if (!(pipe_stdin = CreatePipe(&stdin_rd, &stdin_wr, &sa, 0)) || !(pipe_stdout = CreatePipe(&stdout_rd, &stdout_wr, &sa, 0))) { (void)EMSG(_("E566: Could not create cscope pipes")); err_closing: if (pipe_stdin) { CloseHandle(stdin_rd); CloseHandle(stdin_wr); } if (pipe_stdout) { CloseHandle(stdout_rd); CloseHandle(stdout_wr); } return CSCOPE_FAILURE; } #endif /* expand the cscope exec for env var's */ if ((prog = (char *)alloc(MAXPATHL + 1)) == NULL) { #ifdef UNIX return CSCOPE_FAILURE; #else /* WIN32 */ goto err_closing; #endif } expand_env((char_u *)p_csprg, (char_u *)prog, MAXPATHL); /* alloc space to hold the cscope command */ len = (int)(strlen(prog) + strlen(csinfo[i].fname) + 32); if (csinfo[i].ppath) { /* expand the prepend path for env var's */ if ((ppath = (char *)alloc(MAXPATHL + 1)) == NULL) { vim_free(prog); #ifdef UNIX return CSCOPE_FAILURE; #else /* WIN32 */ goto err_closing; #endif } expand_env((char_u *)csinfo[i].ppath, (char_u *)ppath, MAXPATHL); len += (int)strlen(ppath); } if (csinfo[i].flags) len += (int)strlen(csinfo[i].flags); if ((cmd = (char *)alloc(len)) == NULL) { vim_free(prog); vim_free(ppath); #ifdef UNIX return CSCOPE_FAILURE; #else /* WIN32 */ goto err_closing; #endif } /* run the cscope command; is there execl for non-unix systems? */ #if defined(UNIX) (void)sprintf(cmd, "exec %s -dl -f %s", prog, csinfo[i].fname); #else /* WIN32 */ (void)sprintf(cmd, "%s -dl -f %s", prog, csinfo[i].fname); #endif if (csinfo[i].ppath != NULL) { (void)strcat(cmd, " -P"); (void)strcat(cmd, csinfo[i].ppath); } if (csinfo[i].flags != NULL) { (void)strcat(cmd, " "); (void)strcat(cmd, csinfo[i].flags); } # ifdef UNIX /* on Win32 we still need prog */ vim_free(prog); # endif vim_free(ppath); #if defined(UNIX) # if defined(HAVE_SETSID) || defined(HAVE_SETPGID) /* Change our process group to avoid cscope receiving SIGWINCH. */ # if defined(HAVE_SETSID) (void)setsid(); # else if (setpgid(0, 0) == -1) PERROR(_("cs_create_connection setpgid failed")); # endif # endif if (execl("/bin/sh", "sh", "-c", cmd, (char *)NULL) == -1) PERROR(_("cs_create_connection exec failed")); exit(127); /* NOTREACHED */ default: /* parent. */ /* * Save the file descriptors for later duplication, and * reopen as streams. */ if ((csinfo[i].to_fp = fdopen(to_cs[1], "w")) == NULL) PERROR(_("cs_create_connection: fdopen for to_fp failed")); if ((csinfo[i].fr_fp = fdopen(from_cs[0], "r")) == NULL) PERROR(_("cs_create_connection: fdopen for fr_fp failed")); /* close unused */ (void)close(to_cs[0]); (void)close(from_cs[1]); break; } #else /* WIN32 */ /* Create a new process to run cscope and use pipes to talk with it */ GetStartupInfo(&si); si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW; si.wShowWindow = SW_HIDE; /* Hide child application window */ si.hStdOutput = stdout_wr; si.hStdError = stdout_wr; si.hStdInput = stdin_rd; created = CreateProcess(NULL, cmd, NULL, NULL, TRUE, CREATE_NEW_CONSOLE, NULL, NULL, &si, &pi); vim_free(prog); vim_free(cmd); if (!created) { PERROR(_("cs_create_connection exec failed")); (void)EMSG(_("E623: Could not spawn cscope process")); goto err_closing; } /* else */ csinfo[i].pid = pi.dwProcessId; csinfo[i].hProc = pi.hProcess; CloseHandle(pi.hThread); /* TODO - tidy up after failure to create files on pipe handles. */ if (((fd = _open_osfhandle((OPEN_OH_ARGTYPE)stdin_wr, _O_TEXT|_O_APPEND)) < 0) || ((csinfo[i].to_fp = _fdopen(fd, "w")) == NULL)) PERROR(_("cs_create_connection: fdopen for to_fp failed")); if (((fd = _open_osfhandle((OPEN_OH_ARGTYPE)stdout_rd, _O_TEXT|_O_RDONLY)) < 0) || ((csinfo[i].fr_fp = _fdopen(fd, "r")) == NULL)) PERROR(_("cs_create_connection: fdopen for fr_fp failed")); /* Close handles for file descriptors inherited by the cscope process */ CloseHandle(stdin_rd); CloseHandle(stdout_wr); #endif /* !UNIX */ return CSCOPE_SUCCESS; } /* cs_create_connection */ /* * PRIVATE: cs_find * * Query cscope using command line interface. Parse the output and use tselect * to allow choices. Like Nvi, creates a pipe to send to/from query/cscope. * * returns TRUE if we jump to a tag or abort, FALSE if not. */ static int cs_find(exarg_T *eap) { char *opt, *pat; int i; if (cs_check_for_connections() == FALSE) { (void)EMSG(_("E567: no cscope connections")); return FALSE; } if ((opt = strtok((char *)NULL, (const char *)" ")) == NULL) { cs_usage_msg(Find); return FALSE; } pat = opt + strlen(opt) + 1; if (pat >= (char *)eap->arg + eap_arg_len) { cs_usage_msg(Find); return FALSE; } /* * Let's replace the NULs written by strtok() with spaces - we need the * spaces to correctly display the quickfix/location list window's title. */ for (i = 0; i < eap_arg_len; ++i) if (NUL == eap->arg[i]) eap->arg[i] = ' '; return cs_find_common(opt, pat, eap->forceit, TRUE, eap->cmdidx == CMD_lcscope, *eap->cmdlinep); } /* cs_find */ /* * PRIVATE: cs_find_common * * common code for cscope find, shared by cs_find() and do_cstag() */ static int cs_find_common( char *opt, char *pat, int forceit, int verbose, int use_ll UNUSED, char_u *cmdline UNUSED) { int i; char *cmd; int *nummatches; int totmatches; #ifdef FEAT_QUICKFIX char cmdletter; char *qfpos; /* get cmd letter */ switch (opt[0]) { case '0' : cmdletter = 's'; break; case '1' : cmdletter = 'g'; break; case '2' : cmdletter = 'd'; break; case '3' : cmdletter = 'c'; break; case '4' : cmdletter = 't'; break; case '6' : cmdletter = 'e'; break; case '7' : cmdletter = 'f'; break; case '8' : cmdletter = 'i'; break; default : cmdletter = opt[0]; } qfpos = (char *)vim_strchr(p_csqf, cmdletter); if (qfpos != NULL) { qfpos++; /* next symbol must be + or - */ if (strchr(CSQF_FLAGS, *qfpos) == NULL) { char *nf = _("E469: invalid cscopequickfix flag %c for %c"); char *buf = (char *)alloc((unsigned)strlen(nf)); /* strlen will be enough because we use chars */ if (buf != NULL) { sprintf(buf, nf, *qfpos, *(qfpos-1)); (void)EMSG(buf); vim_free(buf); } return FALSE; } # ifdef FEAT_AUTOCMD if (*qfpos != '0') { apply_autocmds(EVENT_QUICKFIXCMDPRE, (char_u *)"cscope", curbuf->b_fname, TRUE, curbuf); # ifdef FEAT_EVAL if (did_throw || force_abort) return FALSE; # endif } # endif } #endif /* create the actual command to send to cscope */ cmd = cs_create_cmd(opt, pat); if (cmd == NULL) return FALSE; nummatches = (int *)alloc(sizeof(int)*csinfo_size); if (nummatches == NULL) { vim_free(cmd); return FALSE; } /* Send query to all open connections, then count the total number * of matches so we can alloc all in one swell foop. */ for (i = 0; i < csinfo_size; i++) nummatches[i] = 0; totmatches = 0; for (i = 0; i < csinfo_size; i++) { if (csinfo[i].fname == NULL || csinfo[i].to_fp == NULL) continue; /* send cmd to cscope */ (void)fprintf(csinfo[i].to_fp, "%s\n", cmd); (void)fflush(csinfo[i].to_fp); nummatches[i] = cs_cnt_matches(i); if (nummatches[i] > -1) totmatches += nummatches[i]; if (nummatches[i] == 0) (void)cs_read_prompt(i); } vim_free(cmd); if (totmatches == 0) { char *nf = _("E259: no matches found for cscope query %s of %s"); char *buf; if (!verbose) { vim_free(nummatches); return FALSE; } buf = (char *)alloc((unsigned)(strlen(opt) + strlen(pat) + strlen(nf))); if (buf == NULL) (void)EMSG(nf); else { sprintf(buf, nf, opt, pat); (void)EMSG(buf); vim_free(buf); } vim_free(nummatches); return FALSE; } #ifdef FEAT_QUICKFIX if (qfpos != NULL && *qfpos != '0' && totmatches > 0) { /* fill error list */ FILE *f; char_u *tmp = vim_tempname('c', TRUE); qf_info_T *qi = NULL; win_T *wp = NULL; f = mch_fopen((char *)tmp, "w"); if (f == NULL) EMSG2(_(e_notopen), tmp); else { cs_file_results(f, nummatches); fclose(f); if (use_ll) /* Use location list */ wp = curwin; /* '-' starts a new error list */ if (qf_init(wp, tmp, (char_u *)"%f%*\\t%l%*\\t%m", *qfpos == '-', cmdline) > 0) { # ifdef FEAT_WINDOWS if (postponed_split != 0) { (void)win_split(postponed_split > 0 ? postponed_split : 0, postponed_split_flags); RESET_BINDING(curwin); postponed_split = 0; } # endif # ifdef FEAT_AUTOCMD apply_autocmds(EVENT_QUICKFIXCMDPOST, (char_u *)"cscope", curbuf->b_fname, TRUE, curbuf); # endif if (use_ll) /* * In the location list window, use the displayed location * list. Otherwise, use the location list for the window. */ qi = (bt_quickfix(wp->w_buffer) && wp->w_llist_ref != NULL) ? wp->w_llist_ref : wp->w_llist; qf_jump(qi, 0, 0, forceit); } } mch_remove(tmp); vim_free(tmp); vim_free(nummatches); return TRUE; } else #endif /* FEAT_QUICKFIX */ { char **matches = NULL, **contexts = NULL; int matched = 0; /* read output */ cs_fill_results((char *)pat, totmatches, nummatches, &matches, &contexts, &matched); vim_free(nummatches); if (matches == NULL) return FALSE; (void)cs_manage_matches(matches, contexts, matched, Store); return do_tag((char_u *)pat, DT_CSCOPE, 0, forceit, verbose); } } /* cs_find_common */ /* * PRIVATE: cs_help * * print help */ static int cs_help(exarg_T *eap UNUSED) { cscmd_T *cmdp = cs_cmds; (void)MSG_PUTS(_("cscope commands:\n")); while (cmdp->name != NULL) { char *help = _(cmdp->help); int space_cnt = 30 - vim_strsize((char_u *)help); /* Use %*s rather than %30s to ensure proper alignment in utf-8 */ if (space_cnt < 0) space_cnt = 0; (void)smsg((char_u *)_("%-5s: %s%*s (Usage: %s)"), cmdp->name, help, space_cnt, " ", cmdp->usage); if (strcmp(cmdp->name, "find") == 0) MSG_PUTS(_("\n" " c: Find functions calling this function\n" " d: Find functions called by this function\n" " e: Find this egrep pattern\n" " f: Find this file\n" " g: Find this definition\n" " i: Find files #including this file\n" " s: Find this C symbol\n" " t: Find this text string\n")); cmdp++; } wait_return(TRUE); return 0; } /* cs_help */ static void clear_csinfo(int i) { csinfo[i].fname = NULL; csinfo[i].ppath = NULL; csinfo[i].flags = NULL; #if defined(UNIX) csinfo[i].st_dev = (dev_t)0; csinfo[i].st_ino = (ino_t)0; #else csinfo[i].nVolume = 0; csinfo[i].nIndexHigh = 0; csinfo[i].nIndexLow = 0; #endif csinfo[i].pid = 0; csinfo[i].fr_fp = NULL; csinfo[i].to_fp = NULL; #if defined(WIN32) csinfo[i].hProc = NULL; #endif } #ifndef UNIX static char *GetWin32Error(void); static char * GetWin32Error(void) { char *msg = NULL; FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), 0, (LPSTR)&msg, 0, NULL); if (msg != NULL) { /* remove trailing \r\n */ char *pcrlf = strstr(msg, "\r\n"); if (pcrlf != NULL) *pcrlf = '\0'; } return msg; } #endif /* * PRIVATE: cs_insert_filelist * * insert a new cscope database filename into the filelist */ static int cs_insert_filelist( char *fname, char *ppath, char *flags, struct stat *sb UNUSED) { short i, j; #ifndef UNIX BY_HANDLE_FILE_INFORMATION bhfi; /* On windows 9x GetFileInformationByHandle doesn't work, so skip it */ if (!mch_windows95()) { switch (win32_fileinfo(fname, &bhfi)) { case FILEINFO_ENC_FAIL: /* enc_to_utf16() failed */ case FILEINFO_READ_FAIL: /* CreateFile() failed */ if (p_csverbose) { char *cant_msg = _("E625: cannot open cscope database: %s"); char *winmsg = GetWin32Error(); if (winmsg != NULL) { (void)EMSG2(cant_msg, winmsg); LocalFree(winmsg); } else /* subst filename if can't get error text */ (void)EMSG2(cant_msg, fname); } return -1; case FILEINFO_INFO_FAIL: /* GetFileInformationByHandle() failed */ if (p_csverbose) (void)EMSG(_("E626: cannot get cscope database information")); return -1; } } #endif i = -1; /* can be set to the index of an empty item in csinfo */ for (j = 0; j < csinfo_size; j++) { if (csinfo[j].fname != NULL #if defined(UNIX) && csinfo[j].st_dev == sb->st_dev && csinfo[j].st_ino == sb->st_ino #else /* compare pathnames first */ && ((fullpathcmp(csinfo[j].fname, fname, FALSE) & FPC_SAME) /* if not Windows 9x, test index file attributes too */ || (!mch_windows95() && csinfo[j].nVolume == bhfi.dwVolumeSerialNumber && csinfo[j].nIndexHigh == bhfi.nFileIndexHigh && csinfo[j].nIndexLow == bhfi.nFileIndexLow)) #endif ) { if (p_csverbose) (void)EMSG(_("E568: duplicate cscope database not added")); return -1; } if (csinfo[j].fname == NULL && i == -1) i = j; /* remember first empty entry */ } if (i == -1) { i = csinfo_size; if (csinfo_size == 0) { /* First time allocation: allocate only 1 connection. It should * be enough for most users. If more is needed, csinfo will be * reallocated. */ csinfo_size = 1; csinfo = (csinfo_T *)alloc_clear(sizeof(csinfo_T)); } else { csinfo_T *t_csinfo = csinfo; /* Reallocate space for more connections. */ csinfo_size *= 2; csinfo = vim_realloc(csinfo, sizeof(csinfo_T)*csinfo_size); if (csinfo == NULL) { vim_free(t_csinfo); csinfo_size = 0; } } if (csinfo == NULL) return -1; for (j = csinfo_size/2; j < csinfo_size; j++) clear_csinfo(j); } if ((csinfo[i].fname = (char *)alloc((unsigned)strlen(fname)+1)) == NULL) return -1; (void)strcpy(csinfo[i].fname, (const char *)fname); if (ppath != NULL) { if ((csinfo[i].ppath = (char *)alloc((unsigned)strlen(ppath) + 1)) == NULL) { vim_free(csinfo[i].fname); csinfo[i].fname = NULL; return -1; } (void)strcpy(csinfo[i].ppath, (const char *)ppath); } else csinfo[i].ppath = NULL; if (flags != NULL) { if ((csinfo[i].flags = (char *)alloc((unsigned)strlen(flags) + 1)) == NULL) { vim_free(csinfo[i].fname); vim_free(csinfo[i].ppath); csinfo[i].fname = NULL; csinfo[i].ppath = NULL; return -1; } (void)strcpy(csinfo[i].flags, (const char *)flags); } else csinfo[i].flags = NULL; #if defined(UNIX) csinfo[i].st_dev = sb->st_dev; csinfo[i].st_ino = sb->st_ino; #else csinfo[i].nVolume = bhfi.dwVolumeSerialNumber; csinfo[i].nIndexLow = bhfi.nFileIndexLow; csinfo[i].nIndexHigh = bhfi.nFileIndexHigh; #endif return i; } /* cs_insert_filelist */ /* * PRIVATE: cs_lookup_cmd * * find cscope command in command table */ static cscmd_T * cs_lookup_cmd(exarg_T *eap) { cscmd_T *cmdp; char *stok; size_t len; if (eap->arg == NULL) return NULL; /* Store length of eap->arg before it gets modified by strtok(). */ eap_arg_len = (int)STRLEN(eap->arg); if ((stok = strtok((char *)(eap->arg), (const char *)" ")) == NULL) return NULL; len = strlen(stok); for (cmdp = cs_cmds; cmdp->name != NULL; ++cmdp) { if (strncmp((const char *)(stok), cmdp->name, len) == 0) return (cmdp); } return NULL; } /* cs_lookup_cmd */ /* * PRIVATE: cs_kill * * nuke em */ static int cs_kill(exarg_T *eap UNUSED) { char *stok; short i; if ((stok = strtok((char *)NULL, (const char *)" ")) == NULL) { cs_usage_msg(Kill); return CSCOPE_FAILURE; } /* only single digit positive and negative integers are allowed */ if ((strlen(stok) < 2 && VIM_ISDIGIT((int)(stok[0]))) || (strlen(stok) < 3 && stok[0] == '-' && VIM_ISDIGIT((int)(stok[1])))) i = atoi(stok); else { /* It must be part of a name. We will try to find a match * within all the names in the csinfo data structure */ for (i = 0; i < csinfo_size; i++) { if (csinfo[i].fname != NULL && strstr(csinfo[i].fname, stok)) break; } } if ((i != -1) && (i >= csinfo_size || i < -1 || csinfo[i].fname == NULL)) { if (p_csverbose) (void)EMSG2(_("E261: cscope connection %s not found"), stok); } else { if (i == -1) { for (i = 0; i < csinfo_size; i++) { if (csinfo[i].fname) cs_kill_execute(i, csinfo[i].fname); } } else cs_kill_execute(i, stok); } return 0; } /* cs_kill */ /* * PRIVATE: cs_kill_execute * * Actually kills a specific cscope connection. */ static void cs_kill_execute( int i, /* cscope table index */ char *cname) /* cscope database name */ { if (p_csverbose) { msg_clr_eos(); (void)smsg_attr(hl_attr(HLF_R) | MSG_HIST, (char_u *)_("cscope connection %s closed"), cname); } cs_release_csp(i, TRUE); } /* * PRIVATE: cs_make_vim_style_matches * * convert the cscope output into a ctags style entry (as might be found * in a ctags tags file). there's one catch though: cscope doesn't tell you * the type of the tag you are looking for. for example, in Darren Hiebert's * ctags (the one that comes with vim), #define's use a line number to find the * tag in a file while function definitions use a regexp search pattern. * * i'm going to always use the line number because cscope does something * quirky (and probably other things i don't know about): * * if you have "# define" in your source file, which is * perfectly legal, cscope thinks you have "#define". this * will result in a failed regexp search. :( * * besides, even if this particular case didn't happen, the search pattern * would still have to be modified to escape all the special regular expression * characters to comply with ctags formatting. */ static char * cs_make_vim_style_matches( char *fname, char *slno, char *search, char *tagstr) { /* vim style is ctags: * * <tagstr>\t<filename>\t<linenum_or_search>"\t<extra> * * but as mentioned above, we'll always use the line number and * put the search pattern (if one exists) as "extra" * * buf is used as part of vim's method of handling tags, and * (i think) vim frees it when you pop your tags and get replaced * by new ones on the tag stack. */ char *buf; int amt; if (search != NULL) { amt = (int)(strlen(fname) + strlen(slno) + strlen(tagstr) + strlen(search)+6); if ((buf = (char *)alloc(amt)) == NULL) return NULL; (void)sprintf(buf, "%s\t%s\t%s;\"\t%s", tagstr, fname, slno, search); } else { amt = (int)(strlen(fname) + strlen(slno) + strlen(tagstr) + 5); if ((buf = (char *)alloc(amt)) == NULL) return NULL; (void)sprintf(buf, "%s\t%s\t%s;\"", tagstr, fname, slno); } return buf; } /* cs_make_vim_style_matches */ /* * PRIVATE: cs_manage_matches * * this is kind of hokey, but i don't see an easy way round this.. * * Store: keep a ptr to the (malloc'd) memory of matches originally * generated from cs_find(). the matches are originally lines directly * from cscope output, but transformed to look like something out of a * ctags. see cs_make_vim_style_matches for more details. * * Get: used only from cs_fgets(), this simulates a vim_fgets() to return * the next line from the cscope output. it basically keeps track of which * lines have been "used" and returns the next one. * * Free: frees up everything and resets * * Print: prints the tags */ static char * cs_manage_matches( char **matches, char **contexts, int totmatches, mcmd_e cmd) { static char **mp = NULL; static char **cp = NULL; static int cnt = -1; static int next = -1; char *p = NULL; switch (cmd) { case Store: assert(matches != NULL); assert(totmatches > 0); if (mp != NULL || cp != NULL) (void)cs_manage_matches(NULL, NULL, -1, Free); mp = matches; cp = contexts; cnt = totmatches; next = 0; break; case Get: if (next >= cnt) return NULL; p = mp[next]; next++; break; case Free: if (mp != NULL) { if (cnt > 0) while (cnt--) { vim_free(mp[cnt]); if (cp != NULL) vim_free(cp[cnt]); } vim_free(mp); vim_free(cp); } mp = NULL; cp = NULL; cnt = 0; next = 0; break; case Print: cs_print_tags_priv(mp, cp, cnt); break; default: /* should not reach here */ (void)EMSG(_("E570: fatal error in cs_manage_matches")); return NULL; } return p; } /* cs_manage_matches */ /* * PRIVATE: cs_parse_results * * parse cscope output */ static char * cs_parse_results( int cnumber, char *buf, int bufsize, char **context, char **linenumber, char **search) { int ch; char *p; char *name; if (fgets(buf, bufsize, csinfo[cnumber].fr_fp) == NULL) { if (feof(csinfo[cnumber].fr_fp)) errno = EIO; cs_reading_emsg(cnumber); return NULL; } /* If the line's too long for the buffer, discard it. */ if ((p = strchr(buf, '\n')) == NULL) { while ((ch = getc(csinfo[cnumber].fr_fp)) != EOF && ch != '\n') ; return NULL; } *p = '\0'; /* * cscope output is in the following format: * * <filename> <context> <line number> <pattern> */ if ((name = strtok((char *)buf, (const char *)" ")) == NULL) return NULL; if ((*context = strtok(NULL, (const char *)" ")) == NULL) return NULL; if ((*linenumber = strtok(NULL, (const char *)" ")) == NULL) return NULL; *search = *linenumber + strlen(*linenumber) + 1; /* +1 to skip \0 */ /* --- nvi --- * If the file is older than the cscope database, that is, * the database was built since the file was last modified, * or there wasn't a search string, use the line number. */ if (strcmp(*search, "<unknown>") == 0) *search = NULL; name = cs_resolve_file(cnumber, name); return name; } #ifdef FEAT_QUICKFIX /* * PRIVATE: cs_file_results * * write cscope find results to file */ static void cs_file_results(FILE *f, int *nummatches_a) { int i, j; char *buf; char *search, *slno; char *fullname; char *cntx; char *context; buf = (char *)alloc(CSREAD_BUFSIZE); if (buf == NULL) return; for (i = 0; i < csinfo_size; i++) { if (nummatches_a[i] < 1) continue; for (j = 0; j < nummatches_a[i]; j++) { if ((fullname = cs_parse_results(i, buf, CSREAD_BUFSIZE, &cntx, &slno, &search)) == NULL) continue; context = (char *)alloc((unsigned)strlen(cntx)+5); if (context == NULL) continue; if (strcmp(cntx, "<global>")==0) strcpy(context, "<<global>>"); else sprintf(context, "<<%s>>", cntx); if (search == NULL) fprintf(f, "%s\t%s\t%s\n", fullname, slno, context); else fprintf(f, "%s\t%s\t%s %s\n", fullname, slno, context, search); vim_free(context); vim_free(fullname); } /* for all matches */ (void)cs_read_prompt(i); } /* for all cscope connections */ vim_free(buf); } #endif /* * PRIVATE: cs_fill_results * * get parsed cscope output and calls cs_make_vim_style_matches to convert * into ctags format * When there are no matches sets "*matches_p" to NULL. */ static void cs_fill_results( char *tagstr, int totmatches, int *nummatches_a, char ***matches_p, char ***cntxts_p, int *matched) { int i, j; char *buf; char *search, *slno; int totsofar = 0; char **matches = NULL; char **cntxts = NULL; char *fullname; char *cntx; assert(totmatches > 0); buf = (char *)alloc(CSREAD_BUFSIZE); if (buf == NULL) return; if ((matches = (char **)alloc(sizeof(char *) * totmatches)) == NULL) goto parse_out; if ((cntxts = (char **)alloc(sizeof(char *) * totmatches)) == NULL) goto parse_out; for (i = 0; i < csinfo_size; i++) { if (nummatches_a[i] < 1) continue; for (j = 0; j < nummatches_a[i]; j++) { if ((fullname = cs_parse_results(i, buf, CSREAD_BUFSIZE, &cntx, &slno, &search)) == NULL) continue; matches[totsofar] = cs_make_vim_style_matches(fullname, slno, search, tagstr); vim_free(fullname); if (strcmp(cntx, "<global>") == 0) cntxts[totsofar] = NULL; else /* note: if vim_strsave returns NULL, then the context * will be "<global>", which is misleading. */ cntxts[totsofar] = (char *)vim_strsave((char_u *)cntx); if (matches[totsofar] != NULL) totsofar++; } /* for all matches */ (void)cs_read_prompt(i); } /* for all cscope connections */ parse_out: if (totsofar == 0) { /* No matches, free the arrays and return NULL in "*matches_p". */ vim_free(matches); matches = NULL; vim_free(cntxts); cntxts = NULL; } *matched = totsofar; *matches_p = matches; *cntxts_p = cntxts; vim_free(buf); } /* cs_fill_results */ /* get the requested path components */ static char * cs_pathcomponents(char *path) { int i; char *s; if (p_cspc == 0) return path; s = path + strlen(path) - 1; for (i = 0; i < p_cspc; ++i) while (s > path && *--s != '/' #ifdef WIN32 && *--s != '\\' #endif ) ; if ((s > path && *s == '/') #ifdef WIN32 || (s > path && *s == '\\') #endif ) ++s; return s; } /* * PRIVATE: cs_print_tags_priv * * called from cs_manage_matches() */ static void cs_print_tags_priv(char **matches, char **cntxts, int num_matches) { char *buf = NULL; char *t_buf; int bufsize = 0; /* Track available bufsize */ int newsize = 0; char *ptag; char *fname, *lno, *extra, *tbuf; int i, idx, num; char *globalcntx = "GLOBAL"; char *cntxformat = " <<%s>>"; char *context; char *cstag_msg = _("Cscope tag: %s"); char *csfmt_str = "%4d %6s "; assert (num_matches > 0); if ((tbuf = (char *)alloc((unsigned)strlen(matches[0]) + 1)) == NULL) return; strcpy(tbuf, matches[0]); ptag = strtok(tbuf, "\t"); if (ptag == NULL) return; newsize = (int)(strlen(cstag_msg) + strlen(ptag)); buf = (char *)alloc(newsize); if (buf != NULL) { bufsize = newsize; (void)sprintf(buf, cstag_msg, ptag); MSG_PUTS_ATTR(buf, hl_attr(HLF_T)); } vim_free(tbuf); MSG_PUTS_ATTR(_("\n # line"), hl_attr(HLF_T)); /* strlen is 7 */ msg_advance(msg_col + 2); MSG_PUTS_ATTR(_("filename / context / line\n"), hl_attr(HLF_T)); num = 1; for (i = 0; i < num_matches; i++) { idx = i; /* if we really wanted to, we could avoid this malloc and strcpy * by parsing matches[i] on the fly and placing stuff into buf * directly, but that's too much of a hassle */ if ((tbuf = (char *)alloc((unsigned)strlen(matches[idx]) + 1)) == NULL) continue; (void)strcpy(tbuf, matches[idx]); if (strtok(tbuf, (const char *)"\t") == NULL) continue; if ((fname = strtok(NULL, (const char *)"\t")) == NULL) continue; if ((lno = strtok(NULL, (const char *)"\t")) == NULL) continue; extra = strtok(NULL, (const char *)"\t"); lno[strlen(lno)-2] = '\0'; /* ignore ;" at the end */ /* hopefully 'num' (num of matches) will be less than 10^16 */ newsize = (int)(strlen(csfmt_str) + 16 + strlen(lno)); if (bufsize < newsize) { t_buf = buf; buf = (char *)vim_realloc(buf, newsize); if (buf == NULL) { bufsize = 0; vim_free(t_buf); } else bufsize = newsize; } if (buf != NULL) { /* csfmt_str = "%4d %6s "; */ (void)sprintf(buf, csfmt_str, num, lno); MSG_PUTS_ATTR(buf, hl_attr(HLF_CM)); } MSG_PUTS_LONG_ATTR(cs_pathcomponents(fname), hl_attr(HLF_CM)); /* compute the required space for the context */ if (cntxts[idx] != NULL) context = cntxts[idx]; else context = globalcntx; newsize = (int)(strlen(context) + strlen(cntxformat)); if (bufsize < newsize) { t_buf = buf; buf = (char *)vim_realloc(buf, newsize); if (buf == NULL) { bufsize = 0; vim_free(t_buf); } else bufsize = newsize; } if (buf != NULL) { (void)sprintf(buf, cntxformat, context); /* print the context only if it fits on the same line */ if (msg_col + (int)strlen(buf) >= (int)Columns) msg_putchar('\n'); msg_advance(12); MSG_PUTS_LONG(buf); msg_putchar('\n'); } if (extra != NULL) { msg_advance(13); MSG_PUTS_LONG(extra); } vim_free(tbuf); /* only after printing extra due to strtok use */ if (msg_col) msg_putchar('\n'); ui_breakcheck(); if (got_int) { got_int = FALSE; /* don't print any more matches */ break; } num++; } /* for all matches */ vim_free(buf); } /* cs_print_tags_priv */ /* * PRIVATE: cs_read_prompt * * read a cscope prompt (basically, skip over the ">> ") */ static int cs_read_prompt(int i) { int ch; char *buf = NULL; /* buffer for possible error message from cscope */ int bufpos = 0; char *cs_emsg; int maxlen; static char *eprompt = "Press the RETURN key to continue:"; int epromptlen = (int)strlen(eprompt); int n; cs_emsg = _("E609: Cscope error: %s"); /* compute maximum allowed len for Cscope error message */ maxlen = (int)(IOSIZE - strlen(cs_emsg)); for (;;) { while ((ch = getc(csinfo[i].fr_fp)) != EOF && ch != CSCOPE_PROMPT[0]) /* if there is room and char is printable */ if (bufpos < maxlen - 1 && vim_isprintc(ch)) { if (buf == NULL) /* lazy buffer allocation */ buf = (char *)alloc(maxlen); if (buf != NULL) { /* append character to the message */ buf[bufpos++] = ch; buf[bufpos] = NUL; if (bufpos >= epromptlen && strcmp(&buf[bufpos - epromptlen], eprompt) == 0) { /* remove eprompt from buf */ buf[bufpos - epromptlen] = NUL; /* print message to user */ (void)EMSG2(cs_emsg, buf); /* send RETURN to cscope */ (void)putc('\n', csinfo[i].to_fp); (void)fflush(csinfo[i].to_fp); /* clear buf */ bufpos = 0; buf[bufpos] = NUL; } } } for (n = 0; n < (int)strlen(CSCOPE_PROMPT); ++n) { if (n > 0) ch = getc(csinfo[i].fr_fp); if (ch == EOF) { PERROR("cs_read_prompt EOF"); if (buf != NULL && buf[0] != NUL) (void)EMSG2(cs_emsg, buf); else if (p_csverbose) cs_reading_emsg(i); /* don't have additional information */ cs_release_csp(i, TRUE); vim_free(buf); return CSCOPE_FAILURE; } if (ch != CSCOPE_PROMPT[n]) { ch = EOF; break; } } if (ch == EOF) continue; /* didn't find the prompt */ break; /* did find the prompt */ } vim_free(buf); return CSCOPE_SUCCESS; } #if defined(UNIX) && defined(SIGALRM) /* * Used to catch and ignore SIGALRM below. */ static RETSIGTYPE sig_handler SIGDEFARG(sigarg) { /* do nothing */ SIGRETURN; } #endif /* * PRIVATE: cs_release_csp * * Does the actual free'ing for the cs ptr with an optional flag of whether * or not to free the filename. Called by cs_kill and cs_reset. */ static void cs_release_csp(int i, int freefnpp) { /* * Trying to exit normally (not sure whether it is fit to UNIX cscope */ if (csinfo[i].to_fp != NULL) { (void)fputs("q\n", csinfo[i].to_fp); (void)fflush(csinfo[i].to_fp); } #if defined(UNIX) { int waitpid_errno; int pstat; pid_t pid; # if defined(HAVE_SIGACTION) struct sigaction sa, old; /* Use sigaction() to limit the waiting time to two seconds. */ sigemptyset(&sa.sa_mask); sa.sa_handler = sig_handler; # ifdef SA_NODEFER sa.sa_flags = SA_NODEFER; # else sa.sa_flags = 0; # endif sigaction(SIGALRM, &sa, &old); alarm(2); /* 2 sec timeout */ /* Block until cscope exits or until timer expires */ pid = waitpid(csinfo[i].pid, &pstat, 0); waitpid_errno = errno; /* cancel pending alarm if still there and restore signal */ alarm(0); sigaction(SIGALRM, &old, NULL); # else int waited; /* Can't use sigaction(), loop for two seconds. First yield the CPU * to give cscope a chance to exit quickly. */ sleep(0); for (waited = 0; waited < 40; ++waited) { pid = waitpid(csinfo[i].pid, &pstat, WNOHANG); waitpid_errno = errno; if (pid != 0) break; /* break unless the process is still running */ mch_delay(50L, FALSE); /* sleep 50 ms */ } # endif /* * If the cscope process is still running: kill it. * Safety check: If the PID would be zero here, the entire X session * would be killed. -1 and 1 are dangerous as well. */ if (pid < 0 && csinfo[i].pid > 1) { # ifdef ECHILD int alive = TRUE; if (waitpid_errno == ECHILD) { /* * When using 'vim -g', vim is forked and cscope process is * no longer a child process but a sibling. So waitpid() * fails with errno being ECHILD (No child processes). * Don't send SIGKILL to cscope immediately but wait * (polling) for it to exit normally as result of sending * the "q" command, hence giving it a chance to clean up * its temporary files. */ int waited; sleep(0); for (waited = 0; waited < 40; ++waited) { /* Check whether cscope process is still alive */ if (kill(csinfo[i].pid, 0) != 0) { alive = FALSE; /* cscope process no longer exists */ break; } mch_delay(50L, FALSE); /* sleep 50ms */ } } if (alive) # endif { kill(csinfo[i].pid, SIGKILL); (void)waitpid(csinfo[i].pid, &pstat, 0); } } } #else /* !UNIX */ if (csinfo[i].hProc != NULL) { /* Give cscope a chance to exit normally */ if (WaitForSingleObject(csinfo[i].hProc, 1000) == WAIT_TIMEOUT) TerminateProcess(csinfo[i].hProc, 0); CloseHandle(csinfo[i].hProc); } #endif if (csinfo[i].fr_fp != NULL) (void)fclose(csinfo[i].fr_fp); if (csinfo[i].to_fp != NULL) (void)fclose(csinfo[i].to_fp); if (freefnpp) { vim_free(csinfo[i].fname); vim_free(csinfo[i].ppath); vim_free(csinfo[i].flags); } clear_csinfo(i); } /* cs_release_csp */ /* * PRIVATE: cs_reset * * calls cs_kill on all cscope connections then reinits */ static int cs_reset(exarg_T *eap UNUSED) { char **dblist = NULL, **pplist = NULL, **fllist = NULL; int i; char buf[20]; /* for sprintf " (#%d)" */ if (csinfo_size == 0) return CSCOPE_SUCCESS; /* malloc our db and ppath list */ dblist = (char **)alloc(csinfo_size * sizeof(char *)); pplist = (char **)alloc(csinfo_size * sizeof(char *)); fllist = (char **)alloc(csinfo_size * sizeof(char *)); if (dblist == NULL || pplist == NULL || fllist == NULL) { vim_free(dblist); vim_free(pplist); vim_free(fllist); return CSCOPE_FAILURE; } for (i = 0; i < csinfo_size; i++) { dblist[i] = csinfo[i].fname; pplist[i] = csinfo[i].ppath; fllist[i] = csinfo[i].flags; if (csinfo[i].fname != NULL) cs_release_csp(i, FALSE); } /* rebuild the cscope connection list */ for (i = 0; i < csinfo_size; i++) { if (dblist[i] != NULL) { cs_add_common(dblist[i], pplist[i], fllist[i]); if (p_csverbose) { /* don't use smsg_attr() because we want to display the * connection number in the same line as * "Added cscope database..." */ sprintf(buf, " (#%d)", i); MSG_PUTS_ATTR(buf, hl_attr(HLF_R)); } } vim_free(dblist[i]); vim_free(pplist[i]); vim_free(fllist[i]); } vim_free(dblist); vim_free(pplist); vim_free(fllist); if (p_csverbose) MSG_ATTR(_("All cscope databases reset"), hl_attr(HLF_R) | MSG_HIST); return CSCOPE_SUCCESS; } /* cs_reset */ /* * PRIVATE: cs_resolve_file * * Construct the full pathname to a file found in the cscope database. * (Prepends ppath, if there is one and if it's not already prepended, * otherwise just uses the name found.) * * We need to prepend the prefix because on some cscope's (e.g., the one that * ships with Solaris 2.6), the output never has the prefix prepended. * Contrast this with my development system (Digital Unix), which does. */ static char * cs_resolve_file(int i, char *name) { char *fullname; int len; char_u *csdir = NULL; /* * Ppath is freed when we destroy the cscope connection. * Fullname is freed after cs_make_vim_style_matches, after it's been * copied into the tag buffer used by Vim. */ len = (int)(strlen(name) + 2); if (csinfo[i].ppath != NULL) len += (int)strlen(csinfo[i].ppath); else if (p_csre && csinfo[i].fname != NULL) { /* If 'cscoperelative' is set and ppath is not set, use cscope.out * path in path resolution. */ csdir = alloc(MAXPATHL); if (csdir != NULL) { vim_strncpy(csdir, (char_u *)csinfo[i].fname, gettail((char_u *)csinfo[i].fname) - (char_u *)csinfo[i].fname); len += (int)STRLEN(csdir); } } /* Note/example: this won't work if the cscope output already starts * "../.." and the prefix path is also "../..". if something like this * happens, you are screwed up and need to fix how you're using cscope. */ if (csinfo[i].ppath != NULL && (strncmp(name, csinfo[i].ppath, strlen(csinfo[i].ppath)) != 0) && (name[0] != '/') #ifdef WIN32 && name[0] != '\\' && name[1] != ':' #endif ) { if ((fullname = (char *)alloc(len)) != NULL) (void)sprintf(fullname, "%s/%s", csinfo[i].ppath, name); } else if (csdir != NULL && csinfo[i].fname != NULL && *csdir != NUL) { /* Check for csdir to be non empty to avoid empty path concatenated to * cscope output. */ fullname = (char *)concat_fnames(csdir, (char_u *)name, TRUE); } else { fullname = (char *)vim_strsave((char_u *)name); } vim_free(csdir); return fullname; } /* * PRIVATE: cs_show * * show all cscope connections */ static int cs_show(exarg_T *eap UNUSED) { short i; if (cs_cnt_connections() == 0) MSG_PUTS(_("no cscope connections\n")); else { MSG_PUTS_ATTR( _(" # pid database name prepend path\n"), hl_attr(HLF_T)); for (i = 0; i < csinfo_size; i++) { if (csinfo[i].fname == NULL) continue; if (csinfo[i].ppath != NULL) (void)smsg((char_u *)"%2d %-5ld %-34s %-32s", i, (long)csinfo[i].pid, csinfo[i].fname, csinfo[i].ppath); else (void)smsg((char_u *)"%2d %-5ld %-34s <none>", i, (long)csinfo[i].pid, csinfo[i].fname); } } wait_return(TRUE); return CSCOPE_SUCCESS; } /* cs_show */ /* * PUBLIC: cs_end * * Only called when VIM exits to quit any cscope sessions. */ void cs_end(void) { int i; for (i = 0; i < csinfo_size; i++) cs_release_csp(i, TRUE); vim_free(csinfo); csinfo_size = 0; } #endif /* FEAT_CSCOPE */ /* the end */