1 /* -*- mode: C; c-file-style: "gnu" -*- */
2 /* xdgmimealias.c: Private file. Datastructure for storing the hierarchy.
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 "xdgmimeparent.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 XdgMimeParents XdgMimeParents;
49
50 struct XdgMimeParents
51 {
52 char *mime;
53 char **parents;
54 int n_parents;
55 };
56
57 struct XdgParentList
58 {
59 struct XdgMimeParents *parents;
60 int n_mimes;
61 };
62
63 XdgParentList *
_xdg_mime_parent_list_new(void)64 _xdg_mime_parent_list_new (void)
65 {
66 XdgParentList *list;
67
68 list = malloc (sizeof (XdgParentList));
69
70 list->parents = NULL;
71 list->n_mimes = 0;
72
73 return list;
74 }
75
76 void
_xdg_mime_parent_list_free(XdgParentList * list)77 _xdg_mime_parent_list_free (XdgParentList *list)
78 {
79 int i;
80 char **p;
81
82 if (list->parents)
83 {
84 for (i = 0; i < list->n_mimes; i++)
85 {
86 for (p = list->parents[i].parents; *p; p++)
87 free (*p);
88
89 free (list->parents[i].parents);
90 free (list->parents[i].mime);
91 }
92 free (list->parents);
93 }
94 free (list);
95 }
96
97 static int
parent_entry_cmp(const void * v1,const void * v2)98 parent_entry_cmp (const void *v1, const void *v2)
99 {
100 return strcmp (((XdgMimeParents *)v1)->mime, ((XdgMimeParents *)v2)->mime);
101 }
102
103 //const char **
104 //_xdg_mime_parent_list_lookup (XdgParentList *list,
105 // const char *mime)
106 //{
107 // XdgMimeParents *entry;
108 // XdgMimeParents key;
109 //
110 // if (list->n_mimes > 0)
111 // {
112 // key.mime = (char *)mime;
113 // key.parents = NULL;
114 //
115 // entry = bsearch (&key, list->parents, list->n_mimes,
116 // sizeof (XdgMimeParents), &parent_entry_cmp);
117 // if (entry)
118 // return (const char **)entry->parents;
119 // }
120 //
121 // return NULL;
122 //}
123
124 void
_xdg_mime_parent_read_from_file(XdgParentList * list,const char * file_name)125 _xdg_mime_parent_read_from_file (XdgParentList *list,
126 const char *file_name)
127 {
128 FILE *file;
129 char line[255];
130 int i, alloc;
131 XdgMimeParents *entry;
132
133 file = fopen (file_name, "r");
134
135 if (file == NULL)
136 return;
137
138 /* FIXME: Not UTF-8 safe. Doesn't work if lines are greater than 255 chars.
139 * Blah */
140 alloc = list->n_mimes + 16;
141 list->parents = realloc (list->parents, alloc * sizeof (XdgMimeParents));
142 while (fgets (line, 255, file) != NULL)
143 {
144 char *sep;
145 if (line[0] == '#')
146 continue;
147
148 sep = strchr (line, ' ');
149 if (sep == NULL)
150 continue;
151 *(sep++) = '\000';
152 sep[strlen (sep) -1] = '\000';
153 entry = NULL;
154 for (i = 0; i < list->n_mimes; i++)
155 {
156 if (strcmp (list->parents[i].mime, line) == 0)
157 {
158 entry = &(list->parents[i]);
159 break;
160 }
161 }
162
163 if (!entry)
164 {
165 if (list->n_mimes == alloc)
166 {
167 alloc <<= 1;
168 list->parents = realloc (list->parents,
169 alloc * sizeof (XdgMimeParents));
170 }
171 list->parents[list->n_mimes].mime = strdup (line);
172 list->parents[list->n_mimes].parents = NULL;
173 entry = &(list->parents[list->n_mimes]);
174 list->n_mimes++;
175 }
176
177 if (!entry->parents)
178 {
179 entry->n_parents = 1;
180 entry->parents = malloc ((entry->n_parents + 1) * sizeof (char *));
181 }
182 else
183 {
184 entry->n_parents += 1;
185 entry->parents = realloc (entry->parents,
186 (entry->n_parents + 2) * sizeof (char *));
187 }
188 entry->parents[entry->n_parents - 1] = strdup (sep);
189 entry->parents[entry->n_parents] = NULL;
190 }
191
192 list->parents = realloc (list->parents,
193 list->n_mimes * sizeof (XdgMimeParents));
194
195 fclose (file);
196
197 if (list->n_mimes > 1)
198 qsort (list->parents, list->n_mimes,
199 sizeof (XdgMimeParents), &parent_entry_cmp);
200 }
201
202
203 //void
204 //_xdg_mime_parent_list_dump (XdgParentList *list)
205 //{
206 // int i;
207 // char **p;
208 //
209 // if (list->parents)
210 // {
211 // for (i = 0; i < list->n_mimes; i++)
212 // {
213 // for (p = list->parents[i].parents; *p; p++)
214 // printf ("%s %s\n", list->parents[i].mime, *p);
215 // }
216 // }
217 //}
218
219
220