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 GPATH file into the memory.
43 */
44 void
load_gpath(const char * dbpath)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 GPATH file from memory.
71 */
72 void
unload_gpath(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 *
path2fid(const char * path)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 *
path2fid_readonly(const char * path)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 }
122