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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 <khorev@softlab.ru>
- *
- * 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 <string.h>
- #include <errno.h>
- #include <assert.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #if defined(UNIX)
- # include <sys/wait.h>
- #else
- /* not UNIX, must be WIN32 */
- # include <io.h>
- # include <fcntl.h>
- # include <process.h>
- # define STDIN_FILENO 0
- # define STDOUT_FILENO 1
- # define STDERR_FILENO 2
- # define pipe(fds) _pipe(fds, 256, O_TEXT|O_NOINHERIT)
- #endif
- #include "if_cscope.h"
-
- static void cs_usage_msg __ARGS((csid_e x));
- static int cs_add __ARGS((exarg_T *eap));
- static void cs_stat_emsg __ARGS((char *fname));
- static int cs_add_common __ARGS((char *, char *, char *));
- static int cs_check_for_connections __ARGS((void));
- static int cs_check_for_tags __ARGS((void));
- static int cs_cnt_connections __ARGS((void));
- static void cs_reading_emsg __ARGS((int idx));
- static int cs_cnt_matches __ARGS((int idx));
- static char * cs_create_cmd __ARGS((char *csoption, char *pattern));
- static int cs_create_connection __ARGS((int i));
- static void do_cscope_general __ARGS((exarg_T *eap, int make_split));
- static void cs_file_results __ARGS((FILE *, int *));
- static void cs_fill_results __ARGS((char *, int , int *, char ***,
- char ***, int *));
- static int cs_find __ARGS((exarg_T *eap));
- static int cs_find_common __ARGS((char *opt, char *pat, int, int ));
- static int cs_help __ARGS((exarg_T *eap));
- static void cs_init __ARGS((void));
- static void clear_csinfo __ARGS((int i));
- static int cs_insert_filelist __ARGS((char *, char *, char *,
- struct stat *));
- static int cs_kill __ARGS((exarg_T *eap));
- static void cs_kill_execute __ARGS((int, char *));
- static cscmd_T * cs_lookup_cmd __ARGS((exarg_T *eap));
- static char * cs_make_vim_style_matches __ARGS((char *, char *,
- char *, char *));
- static char * cs_manage_matches __ARGS((char **, char **, int, mcmd_e));
- static char * cs_parse_results __ARGS((int cnumber, char *buf, int bufsize, char **context, char **linenumber, char **search));
- static char * cs_pathcomponents __ARGS((char *path));
- static void cs_print_tags_priv __ARGS((char **, char **, int));
- static int cs_read_prompt __ARGS((int ));
- static void cs_release_csp __ARGS((int, int freefnpp));
- static int cs_reset __ARGS((exarg_T *eap));
- static char * cs_resolve_file __ARGS((int, char *));
- static int cs_show __ARGS((exarg_T *eap));
-
-
- static csinfo_T csinfo[CSCOPE_MAX_CONNECTIONS];
- 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_USAGE, 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 }
- };
-
- static void
- cs_usage_msg(x)
- csid_e x;
- {
- (void)EMSG2(_("E560: Usage: cs[cope] %s"), cs_cmds[(int)x].usage);
- }
-
- /*
- * PRIVATE: do_cscope_general
- *
- * find the command, print help if invalid, and the then call the
- * corresponding command function,
- * called from do_cscope and do_scscope
- */
- static void
- do_cscope_general(eap, make_split)
- exarg_T *eap;
- int make_split; /* whether to split window */
- {
- cscmd_T *cmdp;
-
- cs_init();
- 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;
- }
- #endif
-
- cmdp->func(eap);
- }
-
- /*
- * PUBLIC: do_cscope
- */
- void
- do_cscope(eap)
- exarg_T *eap;
- {
- do_cscope_general(eap, FALSE);
- }
-
- /*
- * PUBLIC: do_scscope
- *
- * same as do_cscope, but splits window, too.
- */
- void
- do_scscope(eap)
- exarg_T *eap;
- {
- do_cscope_general(eap, TRUE);
- }
-
- /*
- * PUBLIC: do_cstag
- *
- */
- void
- do_cstag(eap)
- exarg_T *eap;
- {
- int ret = FALSE;
-
- cs_init();
-
- if (eap->arg == NULL || strlen((const char *)(eap->arg)) == 0)
- {
- (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);
- 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);
- if (ret == FALSE)
- cs_free_tags();
- }
- }
- }
- else if (cs_check_for_connections())
- {
- ret = cs_find_common("g", (char *)(eap->arg), eap->forceit, FALSE);
- 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(buf, size)
- char_u *buf;
- int size;
- {
- char *p;
-
- if ((p = cs_manage_matches(NULL, NULL, -1, Get)) == NULL)
- return TRUE;
-
- if ((int)strlen(p) > size)
- {
- strncpy((char *)buf, p, size - 1);
- buf[size] = '\0';
- }
- else
- (void)strcpy((char *)buf, p);
-
- return FALSE;
- } /* cs_fgets */
-
-
- /*
- * PUBLIC: cs_free_tags
- *
- * called only from do_tag(), when popping the tag stack
- */
- void
- cs_free_tags()
- {
- cs_manage_matches(NULL, NULL, -1, Free);
- }
-
-
- /*
- * PUBLIC: cs_print_tags
- *
- * called from do_tag()
- */
- void
- cs_print_tags()
- {
- 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(num, dbpath, ppath)
- int num;
- char_u *dbpath;
- char_u *ppath;
- {
- int i;
-
- if (num < 0 || num > 4 || (num > 0 && !dbpath))
- return FALSE;
-
- for (i = 0; i < CSCOPE_MAX_CONNECTIONS; 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)
- * the the cscope connection list
- *
- * MAXPATHL 256
- */
- /* ARGSUSED */
- static int
- cs_add(eap)
- exarg_T *eap;
- {
- 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(fname)
- 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(arg1, arg2, flags)
- 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;
-
- /* 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);
- 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(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 (strlen(fname) == 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
- /* 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)
- 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()
- {
- return (cs_cnt_connections() > 0);
- } /* cs_check_for_connections */
-
-
- static int
- cs_check_for_tags()
- {
- return (p_tags[0] != NUL && curbuf->b_p_tags != NUL);
- } /* cs_check_for_tags */
-
-
- /*
- * PRIVATE: cs_cnt_connections
- *
- * count the number of cscope connections
- */
- static int
- cs_cnt_connections()
- {
- short i;
- short cnt = 0;
-
- for (i = 0; i < CSCOPE_MAX_CONNECTIONS; i++)
- {
- if (csinfo[i].fname != NULL)
- cnt++;
- }
- return cnt;
- } /* cs_cnt_connections */
-
- static void
- cs_reading_emsg(idx)
- 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(idx)
- 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.
- */
- if ((stok = strtok(buf, (const char *)" ")) == NULL)
- continue;
- if (strcmp((const char *)stok, "cscope:"))
- 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(csoption, pattern)
- char *csoption;
- char *pattern;
- {
- char *cmd;
- short search;
-
- 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;
- }
-
- if ((cmd = (char *)alloc(strlen(pattern) + 2)) == NULL)
- return NULL;
-
- (void)sprintf(cmd, "%d%s", search, pattern);
-
- 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(i)
- int i;
- {
- int to_cs[2], from_cs[2], len;
- char *prog, *cmd, *ppath = NULL;
- #ifndef UNIX
- int in_save, out_save, err_save;
- int ph;
- # ifdef FEAT_GUI
- HWND activewnd = NULL;
- HWND consolewnd = NULL;
- # endif
- #endif
-
- /*
- * 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;
- }
-
- #if defined(UNIX)
- switch (csinfo[i].pid = fork())
- {
- case -1:
- (void)EMSG(_("E622: Could not fork for cscope"));
- goto err_closing;
- case 0: /* child: run cscope. */
- #else
- in_save = dup(STDIN_FILENO);
- out_save = dup(STDOUT_FILENO);
- err_save = dup(STDERR_FILENO);
- #endif
- 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 */
- #if defined(UNIX)
- (void)close(to_cs[1]);
- (void)close(from_cs[0]);
- #else
- /* On win32 we must close opposite ends because we are the parent */
- (void)close(to_cs[0]);
- to_cs[0] = -1;
- (void)close(from_cs[1]);
- from_cs[1] = -1;
- #endif
- /* expand the cscope exec for env var's */
- if ((prog = (char *)alloc(MAXPATHL + 1)) == NULL)
- {
- #ifdef UNIX
- return CSCOPE_FAILURE;
- #else
- goto err_closing;
- #endif
- }
- expand_env((char_u *)p_csprg, (char_u *)prog, MAXPATHL);
-
- /* alloc space to hold the cscope command */
- len = 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
- goto err_closing;
- #endif
- }
- expand_env((char_u *)csinfo[i].ppath, (char_u *)ppath, MAXPATHL);
-
- len += strlen(ppath);
- }
-
- if (csinfo[i].flags)
- len += strlen(csinfo[i].flags);
-
- if ((cmd = (char *)alloc(len)) == NULL)
- {
- vim_free(prog);
- vim_free(ppath);
- #ifdef UNIX
- return CSCOPE_FAILURE;
- #else
- 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
- (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 (execl("/bin/sh", "sh", "-c", cmd, NULL) == -1)
- perror(_("cs_create_connection exec failed"));
-
- exit(127);
- /* NOTREACHED */
- default: /* parent. */
- #else
- # ifdef FEAT_GUI
- activewnd = GetForegroundWindow(); /* on win9x cscope steals focus */
- /* Dirty hack to hide annoying console window */
- if (AllocConsole())
- {
- char *title;
- title = (char *)alloc(1024);
- if (title == NULL)
- FreeConsole();
- else
- {
- GetConsoleTitle(title, 1024); /* save for future restore */
- SetConsoleTitle(
- "GVIMCS{5499421B-CBEF-45b0-85EF-38167FDEA5C5}GVIMCS");
- Sleep(40); /* as stated in MS KB we must wait 40 ms */
- consolewnd = FindWindow(NULL,
- "GVIMCS{5499421B-CBEF-45b0-85EF-38167FDEA5C5}GVIMCS");
- if (consolewnd != NULL)
- ShowWindow(consolewnd, SW_HIDE);
- SetConsoleTitle(title);
- vim_free(title);
- }
- }
- # endif
- /* May be use &shell, &shellquote etc */
- # ifdef __BORLANDC__
- /* BCC 5.5 uses a different function name for spawnlp */
- ph = spawnlp(P_NOWAIT, prog, cmd, NULL);
- # else
- ph = _spawnlp(_P_NOWAIT, prog, cmd, NULL);
- # endif
- vim_free(prog);
- vim_free(cmd);
- # ifdef FEAT_GUI
- /* Dirty hack part two */
- if (activewnd != NULL)
- /* restoring focus */
- SetForegroundWindow(activewnd);
- if (consolewnd != NULL)
- FreeConsole();
-
- # endif
- if (ph == -1)
- {
- perror(_("cs_create_connection exec failed"));
- (void)EMSG(_("E623: Could not spawn cscope process"));
- goto err_closing;
- }
- /* else */
- csinfo[i].pid = 0;
- csinfo[i].hProc = (HANDLE)ph;
-
- #endif /* !UNIX */
- /*
- * 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"));
-
- #if defined(UNIX)
- /* close unused */
- (void)close(to_cs[0]);
- (void)close(from_cs[1]);
-
- break;
- }
- #else
- /* restore stdhandles */
- dup2(in_save, STDIN_FILENO);
- dup2(out_save, STDOUT_FILENO);
- dup2(err_save, STDERR_FILENO);
- close(in_save);
- close(out_save);
- close(err_save);
- #endif
- 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(eap)
- exarg_T *eap;
- {
- char *opt, *pat;
-
- 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 == NULL || (pat != NULL && pat[0] == '\0'))
- {
- cs_usage_msg(Find);
- return FALSE;
- }
-
- return cs_find_common(opt, pat, eap->forceit, TRUE);
- } /* cs_find */
-
-
- /*
- * PRIVATE: cs_find_common
- *
- * common code for cscope find, shared by cs_find() and do_cstag()
- */
- static int
- cs_find_common(opt, pat, forceit, verbose)
- char *opt;
- char *pat;
- int forceit;
- int verbose;
- {
- int i;
- char *cmd;
- char **matches, **contexts;
- int nummatches[CSCOPE_MAX_CONNECTIONS], totmatches, matched;
- #ifdef FEAT_QUICKFIX
- char cmdletter;
- char *qfpos;
- #endif
-
- /* create the actual command to send to cscope */
- cmd = cs_create_cmd(opt, pat);
- if (cmd == NULL)
- return FALSE;
-
- /* send query to all open connections, then count the total number
- * of matches so we can alloc matchesp all in one swell foop
- */
- for (i = 0; i < CSCOPE_MAX_CONNECTIONS; i++)
- nummatches[i] = 0;
- totmatches = 0;
- for (i = 0; i < CSCOPE_MAX_CONNECTIONS; i++)
- {
- if (csinfo[i].fname == 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)
- return FALSE;
-
- buf = (char *)alloc(strlen(opt) + strlen(pat) + strlen(nf));
- if (buf == NULL)
- (void)EMSG(nf);
- else
- {
- sprintf(buf, nf, opt, pat);
- (void)EMSG(buf);
- vim_free(buf);
- }
- return FALSE;
- }
-
- #ifdef FEAT_QUICKFIX
- /* 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(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;
- }
- }
- if (qfpos != NULL && *qfpos != '0' && totmatches > 1)
- {
- /* fill error list */
- FILE *f;
- char_u *tmp = vim_tempname('c');
-
- f = fopen((char *)tmp, "w");
- cs_file_results(f, nummatches);
- fclose(f);
- /* '-' starts a new error list */
- if (qf_init(tmp, (char_u *)"%f%*\\t%l%*\\t%m", *qfpos == '-') > 0)
- qf_jump(0, 0, forceit);
- mch_remove(tmp);
- vim_free(tmp);
- return TRUE;
- }
- else
- #endif /* FEAT_QUICKFIX */
- {
- /* read output */
- cs_fill_results((char *)pat, totmatches, nummatches, &matches,
- &contexts, &matched);
- if (matches == NULL)
- return FALSE;
-
- (void)cs_manage_matches(matches, contexts, totmatches, Store);
-
- return do_tag((char_u *)pat, DT_CSCOPE, 0, forceit, verbose);
- }
-
- } /* cs_find_common */
-
- /*
- * PRIVATE: cs_help
- *
- * print help
- */
- /* ARGSUSED */
- static int
- cs_help(eap)
- exarg_T *eap;
- {
- cscmd_T *cmdp = cs_cmds;
-
- (void)MSG_PUTS(_("cscope commands:\n"));
- while (cmdp->name != NULL)
- {
- (void)smsg((char_u *)_("%-5s: %-30s (Usage: %s)"),
- cmdp->name, _(cmdp->help), cmdp->usage);
- if (strcmp(cmdp->name, "find") == 0)
- MSG_PUTS(FIND_HELP);
- cmdp++;
- }
-
- wait_return(TRUE);
- return 0;
- } /* cs_help */
-
-
- /*
- * PRIVATE: cs_init
- *
- * initialize cscope structure if not already
- */
- static void
- cs_init()
- {
- short i;
- static int init_already = FALSE;
-
- if (init_already)
- return;
-
- for (i = 0; i < CSCOPE_MAX_CONNECTIONS; i++)
- clear_csinfo(i);
-
- init_already = TRUE;
- } /* cs_init */
-
- static void
- clear_csinfo(i)
- 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 = -1;
- csinfo[i].fr_fp = NULL;
- csinfo[i].to_fp = NULL;
- }
-
- #ifndef UNIX
- static char *GetWin32Error __ARGS((void));
-
- static char *
- GetWin32Error()
- {
- 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(fname, ppath, flags, sb)
- char *fname;
- char *ppath;
- char *flags;
- struct stat *sb;
- {
- short i, j;
- #ifndef UNIX
- HANDLE hFile;
- BY_HANDLE_FILE_INFORMATION bhfi;
-
- vim_memset(&bhfi, 0, sizeof(bhfi));
- /* On windows 9x GetFileInformationByHandle doesn't work, so skip it */
- if (!mch_windows95())
- {
- hFile = CreateFile(fname, FILE_READ_ATTRIBUTES, 0, NULL, OPEN_EXISTING,
- FILE_ATTRIBUTE_NORMAL, NULL);
- if (hFile == INVALID_HANDLE_VALUE)
- {
- 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;
- }
- if (!GetFileInformationByHandle(hFile, &bhfi))
- {
- CloseHandle(hFile);
- if (p_csverbose)
- (void)EMSG(_("E626: cannot get cscope database information"));
- return -1;
- }
- CloseHandle(hFile);
- }
- #endif
-
- i = -1; /* can be set to the index of an empty item in csinfo */
- for (j = 0; j < CSCOPE_MAX_CONNECTIONS; 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 atributes 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)
- {
- if (p_csverbose)
- (void)EMSG(_("E569: maximum number of cscope connections reached"));
- return -1;
- }
-
- if ((csinfo[i].fname = (char *)alloc(strlen(fname)+1)) == NULL)
- return -1;
-
- (void)strcpy(csinfo[i].fname, (const char *)fname);
-
- if (ppath != NULL)
- {
- if ((csinfo[i].ppath = (char *)alloc(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(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(exp)
- exarg_T *exp;
- {
- cscmd_T *cmdp;
- char *stok;
- size_t len;
-
- if (exp->arg == NULL)
- return NULL;
-
- if ((stok = strtok((char *)(exp->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
- */
- /* ARGSUSED */
- static int
- cs_kill(eap)
- exarg_T *eap;
- {
- 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 && isdigit((int)(stok[0])))
- || (strlen(stok) < 3 && stok[0] == '-' && 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 < CSCOPE_MAX_CONNECTIONS; i++)
- {
- if (csinfo[i].fname != NULL && strstr(csinfo[i].fname, stok))
- break;
- }
- }
-
- if ((i >= CSCOPE_MAX_CONNECTIONS || i < -1 || csinfo[i].fname == NULL)
- && i != -1)
- {
- if (p_csverbose)
- (void)EMSG2(_("E261: cscope connection %s not found"), stok);
- }
- else
- {
- if (i == -1)
- {
- for (i = 0; i < CSCOPE_MAX_CONNECTIONS; 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(i, cname)
- 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 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(fname, slno, search, tagstr)
- 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 = 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 = 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(matches, contexts, totmatches, cmd)
- 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(cnumber, buf, bufsize, context, linenumber, search)
- 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;
- }
-
- /*
- * PRIVATE: cs_file_results
- *
- * write cscope find results to file
- */
- static void
- cs_file_results(f, nummatches_a)
- 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 < CSCOPE_MAX_CONNECTIONS; 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(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);
- }
-
- /*
- * PRIVATE: cs_fill_results
- *
- * get parsed cscope output and calls cs_make_vim_style_matches to convert
- * into ctags format
- */
- static void
- cs_fill_results(tagstr, totmatches, nummatches_a, matches_p, cntxts_p, matched)
- 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 < CSCOPE_MAX_CONNECTIONS; 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:
- *matched = totsofar;
- *matches_p = matches;
- *cntxts_p = cntxts;
- vim_free(buf);
- } /* cs_fill_results */
-
-
- /* get the requested path components */
- static char *
- cs_pathcomponents(path)
- 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(matches, cntxts, num_matches)
- char **matches;
- char **cntxts;
- int num_matches;
- {
- char *buf = NULL;
- int bufsize = 0; /* Track available bufsize */
- int newsize = 0;
- char *ptag;
- char *fname, *lno, *extra, *tbuf;
- int i, j, idx, num;
- char_u *in_cur_file;
- char *globalcntx = "GLOBAL";
- char *cntxformat = " <<%s>>";
- char *context;
-
- assert (num_matches > 0);
-
- if ((tbuf = (char *)alloc(strlen(matches[0]) + 1)) == NULL)
- return;
-
- strcpy(tbuf, matches[0]);
- ptag = strtok(tbuf, "\t");
-
- (void)smsg_attr(hl_attr(HLF_T), (char_u *)_("Cscope tag: %s"), ptag);
-
- 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));
-
- /*
- * for normal tags (non-cscope tags), vim sorts the tags before printing.
- * hence, the output from 'matches' needs to be sorted as well (but we're
- * not actually sorting the contents of 'matches'). for sorting, we simply
- * print all tags in the current file before any other tags. this idea
- * was suggested by Jeffrey George <jgeorge@texas.net>
- */
- in_cur_file = alloc_clear(num_matches);
- if (in_cur_file != NULL)
- {
- if (curbuf->b_fname != NULL)
- {
- char *f;
- int fname_len, ffname_len;
-
- fname_len = strlen((const char *)(curbuf->b_fname));
- ffname_len = strlen((const char *)(curbuf->b_ffname));
-
- for (i = 0; i < num_matches; i++)
- {
- if ((f = strchr(matches[i], '\t')) != NULL)
- {
- f++;
- if (strncmp((const char *)(curbuf->b_fname), f, fname_len)
- == 0
- || strncmp((const char *)(curbuf->b_ffname), f,
- ffname_len) == 0)
- in_cur_file[i] = TRUE;
- }
- }
- }
- }
-
- /*
- * if we were able to allocate 'in_cur_file', then we make two passes
- * through 'matches'. the first pass prints the tags in the current file,
- * while the second prints all remaining tags. if we were unable to
- * allocate 'in_cur_file', we'll just make one pass through 'matches' and
- * print them unsorted.
- */
- num = 1;
- for (j = (in_cur_file) ? 2 : 1; j > 0; j--)
- {
- for (i = 0; i < num_matches; i++)
- {
- if (in_cur_file)
- {
- if (((j == 2) && (in_cur_file[i] == TRUE))
- || ((j == 1) && (in_cur_file[i] == FALSE)))
- idx = i;
- else
- continue;
- }
- else
- 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(strlen(matches[idx]) + 1)) == NULL)
- continue;
- (void)strcpy(tbuf, matches[idx]);
-
- if ((fname = strtok(tbuf, (const char *)"\t")) == NULL)
- continue;
- if ((fname = strtok(NULL, (const char *)"\t")) == NULL)
- continue;
- if ((lno = strtok(NULL, (const char *)"\t")) == NULL)
- {
- /* if NULL, then no "extra", although in cscope's case, there
- * should always be "extra".
- */
- extra = NULL;
- }
-
- extra = lno + strlen(lno) + 1;
-
- lno[strlen(lno)-2] = '\0'; /* ignore ;" at the end */
-
- (void)smsg_attr(hl_attr(HLF_CM), (char_u *)"%4d %6s ", num, lno);
- 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 = strlen(context) + strlen(cntxformat);
-
- if (bufsize < newsize)
- {
- buf = (char *)vim_realloc(buf, newsize);
- if (buf == NULL)
- bufsize = 0;
- 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 */
- j = 1;
- break;
- }
-
- num++;
- } /* for all matches */
- } /* 1 or 2 passes through 'matches' */
-
- vim_free(in_cur_file);
- vim_free(buf);
- } /* cs_print_tags_priv */
-
-
- /*
- * PRIVATE: cs_read_prompt
- *
- * read a cscope prompt (basically, skip over the ">> ")
- */
- static int
- cs_read_prompt(i)
- int i;
- {
- int ch;
- char *buf = NULL; /* buffer for possible error message from cscope */
- int bufpos = 0;
- static char *cs_emsg = N_("E609: Cscope error: %s");
- /* maximum allowed len for Cscope error message */
- int maxlen = IOSIZE - strlen(_(cs_emsg));
-
- for (;;)
- {
- while ((ch = getc(csinfo[i].fr_fp)) != EOF && ch != CSCOPE_PROMPT[0])
- /* if verbose, have space and char is printable */
- if (p_csverbose && bufpos < maxlen - 1 && vim_isprintc(ch))
- {
- if (buf == NULL) /* lazy buffer allocation */
- buf = (char *)alloc(maxlen);
-
- if (buf != NULL) /* append character to a string */
- {
- buf[bufpos++] = ch;
- buf[bufpos] = NUL;
- }
- }
-
- if (ch == EOF)
- {
- perror("cs_read_prompt EOF(1)");
- 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;
- }
-
- ch = getc(csinfo[i].fr_fp);
- if (ch == EOF)
- perror("cs_read_prompt EOF(2)");
- if (ch != CSCOPE_PROMPT[1])
- continue;
-
- ch = getc(csinfo[i].fr_fp);
- if (ch == EOF)
- perror("cs_read_prompt EOF(3)");
- if (ch != CSCOPE_PROMPT[2])
- continue;
- break;
- }
- vim_free(buf);
- return CSCOPE_SUCCESS;
- } /* cs_read_prompt */
-
-
- /*
- * 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(i, freefnpp)
- int i;
- int freefnpp;
- {
- #if defined(UNIX)
- int pstat;
- #else
- /*
- * Trying to exit normally (not sure whether it is fit to UNIX cscope
- */
- (void)fputs("q\n", csinfo[i].to_fp);
- (void)fflush(csinfo[i].to_fp);
- /* give cscope chance to exit normally */
- if (WaitForSingleObject(csinfo[i].hProc, 1000) == WAIT_TIMEOUT)
- TerminateProcess(csinfo[i].hProc, 0);
- #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);
-
- /*
- * Safety check: If the PID would be zero here, the entire X session would
- * be killed...
- */
- #if defined(UNIX)
- if (csinfo[i].pid != 0)
- {
- kill(csinfo[i].pid, SIGTERM);
- (void)waitpid(csinfo[i].pid, &pstat, 0);
- }
- #endif
-
- 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
- */
- /* ARGSUSED */
- static int
- cs_reset(eap)
- exarg_T *eap;
- {
- char **dblist = NULL, **pplist = NULL, **fllist = NULL;
- int i;
- char buf[8]; /* for sprintf " (#%d)" */
-
- /* malloc our db and ppath list */
- dblist = (char **)alloc(CSCOPE_MAX_CONNECTIONS * sizeof(char *));
- pplist = (char **)alloc(CSCOPE_MAX_CONNECTIONS * sizeof(char *));
- fllist = (char **)alloc(CSCOPE_MAX_CONNECTIONS * 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 < CSCOPE_MAX_CONNECTIONS; 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 < CSCOPE_MAX_CONNECTIONS; i++)
- {
- if (dblist[i] != NULL)
- {
- cs_add_common(dblist[i], pplist[i], fllist[i]);
- if (p_csverbose)
- {
- /* dont' use smsg_attr because want to display
- * 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(i, name)
- int i;
- char *name;
- {
- char *fullname;
- int len;
-
- /*
- * 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 = strlen(name) + 2;
- if (csinfo[i].ppath != NULL)
- len += strlen(csinfo[i].ppath);
-
- if ((fullname = (char *)alloc(len)) == NULL)
- return NULL;
-
- /*
- * 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
- )
- (void)sprintf(fullname, "%s/%s", csinfo[i].ppath, name);
- else
- (void)sprintf(fullname, "%s", name);
-
- return fullname;
- } /* cs_resolve_file */
-
-
- /*
- * PRIVATE: cs_show
- *
- * show all cscope connections
- */
- /* ARGSUSED */
- static int
- cs_show(eap)
- exarg_T *eap;
- {
- 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 < CSCOPE_MAX_CONNECTIONS; 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 */
-
- #endif /* FEAT_CSCOPE */
-
- /* the end */
-