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- /* -*- mode: C; c-file-style: "gnu" -*- */
- /* xdgmimealias.c: Private file. Datastructure for storing the hierarchy.
- *
- * More info can be found at http://www.freedesktop.org/standards/
- *
- * Copyright (C) 2004 Red Hat, Inc.
- * Copyright (C) 2004 Matthias Clasen <mclasen@redhat.com>
- *
- * Licensed under the Academic Free License version 2.0
- * Or under the following terms:
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
- #ifdef HAVE_CONFIG_H
- #include <config.h>
- #endif
- #include "xdgmimeparent.h"
- #include "xdgmimeint.h"
- #include <stdlib.h>
- #include <stdio.h>
- #include <assert.h>
- #include <string.h>
- #include <fnmatch.h>
- #ifndef FALSE
- #define FALSE (0)
- #endif
- #ifndef TRUE
- #define TRUE (!FALSE)
- #endif
- typedef struct XdgMimeParents XdgMimeParents;
- struct XdgMimeParents
- {
- char *mime;
- char **parents;
- int n_parents;
- };
- struct XdgParentList
- {
- struct XdgMimeParents *parents;
- int n_mimes;
- };
- XdgParentList *
- _xdg_mime_parent_list_new (void)
- {
- XdgParentList *list;
- list = malloc (sizeof (XdgParentList));
- list->parents = NULL;
- list->n_mimes = 0;
- return list;
- }
- void
- _xdg_mime_parent_list_free (XdgParentList *list)
- {
- int i;
- char **p;
- if (list->parents)
- {
- for (i = 0; i < list->n_mimes; i++)
- {
- for (p = list->parents[i].parents; *p; p++)
- free (*p);
- free (list->parents[i].parents);
- free (list->parents[i].mime);
- }
- free (list->parents);
- }
- free (list);
- }
- static int
- parent_entry_cmp (const void *v1, const void *v2)
- {
- return strcmp (((XdgMimeParents *)v1)->mime, ((XdgMimeParents *)v2)->mime);
- }
- const char **
- _xdg_mime_parent_list_lookup (XdgParentList *list,
- const char *mime)
- {
- XdgMimeParents *entry;
- XdgMimeParents key;
- if (list->n_mimes > 0)
- {
- key.mime = (char *)mime;
- key.parents = NULL;
- entry = bsearch (&key, list->parents, list->n_mimes,
- sizeof (XdgMimeParents), &parent_entry_cmp);
- if (entry)
- return (const char **)entry->parents;
- }
- return NULL;
- }
- void
- _xdg_mime_parent_read_from_file (XdgParentList *list,
- const char *file_name)
- {
- FILE *file;
- char line[255];
- int i, alloc;
- XdgMimeParents *entry;
- file = fopen (file_name, "r");
- if (file == NULL)
- return;
- /* FIXME: Not UTF-8 safe. Doesn't work if lines are greater than 255 chars.
- * Blah */
- alloc = list->n_mimes + 16;
- list->parents = realloc (list->parents, alloc * sizeof (XdgMimeParents));
- while (fgets (line, 255, file) != NULL)
- {
- char *sep;
- if (line[0] == '#')
- continue;
- sep = strchr (line, ' ');
- if (sep == NULL)
- continue;
- *(sep++) = '\000';
- sep[strlen (sep) -1] = '\000';
- entry = NULL;
- for (i = 0; i < list->n_mimes; i++)
- {
- if (strcmp (list->parents[i].mime, line) == 0)
- {
- entry = &(list->parents[i]);
- break;
- }
- }
-
- if (!entry)
- {
- if (list->n_mimes == alloc)
- {
- alloc <<= 1;
- list->parents = realloc (list->parents,
- alloc * sizeof (XdgMimeParents));
- }
- list->parents[list->n_mimes].mime = strdup (line);
- list->parents[list->n_mimes].parents = NULL;
- entry = &(list->parents[list->n_mimes]);
- list->n_mimes++;
- }
- if (!entry->parents)
- {
- entry->n_parents = 1;
- entry->parents = malloc ((entry->n_parents + 1) * sizeof (char *));
- }
- else
- {
- entry->n_parents += 1;
- entry->parents = realloc (entry->parents,
- (entry->n_parents + 2) * sizeof (char *));
- }
- entry->parents[entry->n_parents - 1] = strdup (sep);
- entry->parents[entry->n_parents] = NULL;
- }
- list->parents = realloc (list->parents,
- list->n_mimes * sizeof (XdgMimeParents));
- fclose (file);
-
- if (list->n_mimes > 1)
- qsort (list->parents, list->n_mimes,
- sizeof (XdgMimeParents), &parent_entry_cmp);
- }
- void
- _xdg_mime_parent_list_dump (XdgParentList *list)
- {
- int i;
- char **p;
- if (list->parents)
- {
- for (i = 0; i < list->n_mimes; i++)
- {
- for (p = list->parents[i].parents; *p; p++)
- printf ("%s %s\n", list->parents[i].mime, *p);
- }
- }
- }
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