root/htags/path2url.c

/* */

DEFINITIONS

1. load_gpath
2. unload_gpath
3. path2fid
4. path2fid_readonly

   1 /*
   2  * Copyright (c) 2004, 2010 Tama Communications Corporation
   3  *
   4  * This file is part of GNU GLOBAL.
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  * 
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  * 
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 #ifdef HAVE_CONFIG_H
  20 #include <config.h>
  21 #endif
  22 #ifdef STDC_HEADERS
  23 #include <stdlib.h>
  24 #endif
  25 #ifdef HAVE_STRING_H
  26 #include <string.h>
  27 #else
  28 #include <strings.h>
  29 #endif
  30 
  31 #include "global.h"
  32 #include "assoc.h"
  33 #include "htags.h"
  34 #include "path2url.h"
  35 
  36 static ASSOC *assoc;
  37 static int nextkey;
  38 
  39 /**
  40  * load_gpath: load gpath tag file.
  41  *
  42  * load the contents of @NAME{GPATH} file into the memory.
  43  */
  44 void
  45 load_gpath(const char *dbpath)
  46 {
  47         DBOP *dbop;
  48         const char *path;
  49         int n;
  50 
  51         assoc = assoc_open();
  52         nextkey = 0;
  53         dbop = dbop_open(makepath(dbpath, dbname(GPATH), NULL), 0, 0, 0);
  54         if (dbop == NULL)
  55                 die("cannot open '%s'.", makepath(dbpath, dbname(GPATH), NULL));
  56         for (path = dbop_first(dbop, "./", NULL, DBOP_PREFIX | DBOP_KEY); path; path = dbop_next(dbop)) {
  57                 const char *no = dbop_lastdat(dbop, NULL);
  58 
  59                 path += 2;                      /* remove './' */
  60                 assoc_put(assoc, path, no);
  61                 n = atoi(no);
  62                 if (n > nextkey)
  63                         nextkey = n;
  64         }
  65         dbop_close(dbop);
  66 }
  67 /**
  68  * unload_gpath: unload gpath tag file.
  69  *
  70  * unload the contents of @NAME{GPATH} file from memory.
  71  */
  72 void
  73 unload_gpath(void)
  74 {
  75         assoc_close(assoc);
  76 }
  77 /**
  78  * path2fid: convert the path name into the file id.
  79  *
  80  *      @param[in]      path    path name
  81  *      @return         id
  82  */
  83 const char *
  84 path2fid(const char *path)
  85 {
  86         static char number[32];
  87         const char *p;
  88 
  89         if (strlen(path) > MAXPATHLEN)
  90                 die("path name too long. '%s'", path);
  91         /*
  92          * accept both aaa and ./aaa.
  93          */
  94         if (*path == '.' && *(path + 1) == '/')
  95                 path += 2;
  96         p = assoc_get(assoc, path);
  97         if (!p) {
  98                 snprintf(number, sizeof(number), "%d", ++nextkey);
  99                 assoc_put(assoc, path, number);
 100                 p = number;
 101         }
 102         return p;
 103 }
 104 /**
 105  * path2fid_readonly: convert the path name into the file id.
 106  *
 107  *      @param[in]      path    path name
 108  *      @return         id
 109  */
 110 const char *
 111 path2fid_readonly(const char *path)
 112 {
 113         if (strlen(path) > MAXPATHLEN)
 114                 die("path name too long. '%s'", path);
 115         /*
 116          * accept both aaa and ./aaa.
 117          */
 118         if (*path == '.' && *(path + 1) == '/')
 119                 path += 2;
 120         return assoc_get(assoc, path);
 121 }

/* */