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1 | /* -*- mode: C; c-file-style: "gnu" -*- */ |
2 | /* xdgmimealias.c: Private file. Datastructure for storing the aliases. | |
3 | * | |
4 | * More info can be found at http://www.freedesktop.org/standards/ | |
5 | * | |
6 | * Copyright (C) 2004 Red Hat, Inc. | |
7 | * Copyright (C) 2004 Matthias Clasen <mclasen@redhat.com> | |
8 | * | |
9 | * Licensed under the Academic Free License version 2.0 | |
10 | * Or under the following terms: | |
11 | * | |
12 | * This library is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU Lesser General Public | |
14 | * License as published by the Free Software Foundation; either | |
15 | * version 2 of the License, or (at your option) any later version. | |
16 | * | |
17 | * This library is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
20 | * Lesser General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU Lesser General Public | |
23 | * License along with this library; if not, write to the | |
24 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
25 | * Boston, MA 02111-1307, USA. | |
26 | */ | |
27 | ||
28 | #ifdef HAVE_CONFIG_H | |
29 | #include <config.h> | |
30 | #endif | |
31 | ||
32 | #include "xdgmimealias.h" | |
33 | #include "xdgmimeint.h" | |
34 | #include <stdlib.h> | |
35 | #include <stdio.h> | |
36 | #include <assert.h> | |
37 | #include <string.h> | |
38 | #include <fnmatch.h> | |
39 | ||
40 | #ifndef FALSE | |
41 | #define FALSE (0) | |
42 | #endif | |
43 | ||
44 | #ifndef TRUE | |
45 | #define TRUE (!FALSE) | |
46 | #endif | |
47 | ||
48 | typedef struct XdgAlias XdgAlias; | |
49 | ||
50 | struct XdgAlias | |
51 | { | |
52 | char *alias; | |
53 | char *mime_type; | |
54 | }; | |
55 | ||
56 | struct XdgAliasList | |
57 | { | |
58 | struct XdgAlias *aliases; | |
59 | int n_aliases; | |
60 | }; | |
61 | ||
62 | XdgAliasList * | |
63 | _xdg_mime_alias_list_new (void) | |
64 | { | |
65 | XdgAliasList *list; | |
66 | ||
67 | list = malloc (sizeof (XdgAliasList)); | |
68 | ||
69 | list->aliases = NULL; | |
70 | list->n_aliases = 0; | |
71 | ||
72 | return list; | |
73 | } | |
74 | ||
75 | void | |
76 | _xdg_mime_alias_list_free (XdgAliasList *list) | |
77 | { | |
78 | int i; | |
79 | ||
80 | if (list->aliases) | |
81 | { | |
82 | for (i = 0; i < list->n_aliases; i++) | |
83 | { | |
84 | free (list->aliases[i].alias); | |
85 | free (list->aliases[i].mime_type); | |
86 | } | |
87 | free (list->aliases); | |
88 | } | |
89 | free (list); | |
90 | } | |
91 | ||
92 | static int | |
93 | alias_entry_cmp (const void *v1, const void *v2) | |
94 | { | |
95 | return strcmp (((XdgAlias *)v1)->alias, ((XdgAlias *)v2)->alias); | |
96 | } | |
97 | ||
98 | const char * | |
99 | _xdg_mime_alias_list_lookup (XdgAliasList *list, | |
100 | const char *alias) | |
101 | { | |
102 | XdgAlias *entry; | |
103 | XdgAlias key; | |
104 | ||
105 | if (list->n_aliases > 0) | |
106 | { | |
107 | key.alias = (char *)alias; | |
108 | key.mime_type = NULL; | |
109 | ||
110 | entry = bsearch (&key, list->aliases, list->n_aliases, | |
111 | sizeof (XdgAlias), alias_entry_cmp); | |
112 | if (entry) | |
113 | return entry->mime_type; | |
114 | } | |
115 | ||
116 | return NULL; | |
117 | } | |
118 | ||
119 | void | |
120 | _xdg_mime_alias_read_from_file (XdgAliasList *list, | |
121 | const char *file_name) | |
122 | { | |
123 | FILE *file; | |
124 | char line[255]; | |
125 | int alloc; | |
126 | ||
127 | file = fopen (file_name, "r"); | |
128 | ||
129 | if (file == NULL) | |
130 | return; | |
131 | ||
132 | /* FIXME: Not UTF-8 safe. Doesn't work if lines are greater than 255 chars. | |
133 | * Blah */ | |
134 | alloc = list->n_aliases + 16; | |
135 | list->aliases = realloc (list->aliases, alloc * sizeof (XdgAlias)); | |
136 | while (fgets (line, 255, file) != NULL) | |
137 | { | |
138 | char *sep; | |
139 | if (line[0] == '#') | |
140 | continue; | |
141 | ||
142 | sep = strchr (line, ' '); | |
143 | if (sep == NULL) | |
144 | continue; | |
145 | *(sep++) = '\000'; | |
146 | sep[strlen (sep) -1] = '\000'; | |
147 | if (list->n_aliases == alloc) | |
148 | { | |
149 | alloc <<= 1; | |
150 | list->aliases = realloc (list->aliases, | |
151 | alloc * sizeof (XdgAlias)); | |
152 | } | |
153 | list->aliases[list->n_aliases].alias = strdup (line); | |
154 | list->aliases[list->n_aliases].mime_type = strdup (sep); | |
155 | list->n_aliases++; | |
156 | } | |
157 | list->aliases = realloc (list->aliases, | |
158 | list->n_aliases * sizeof (XdgAlias)); | |
159 | ||
160 | fclose (file); | |
161 | ||
162 | if (list->n_aliases > 1) | |
163 | qsort (list->aliases, list->n_aliases, | |
164 | sizeof (XdgAlias), alias_entry_cmp); | |
165 | } | |
166 | ||
167 | ||
168 | void | |
169 | _xdg_mime_alias_list_dump (XdgAliasList *list) | |
170 | { | |
171 | int i; | |
172 | ||
173 | if (list->aliases) | |
174 | { | |
175 | for (i = 0; i < list->n_aliases; i++) | |
176 | { | |
177 | printf ("%s %s\n", | |
178 | list->aliases[i].alias, | |
179 | list->aliases[i].mime_type); | |
180 | } | |
181 | } | |
182 | } | |
183 | ||
184 |