| /* -*- 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); |
| } |
| } |
| } |
| |
| |