track_info.c

   1 /*
   2  * Copyright 2004-2005 Timo Hirvonen
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  17  * 02111-1307, USA.
  18  */
  19
  20 #include "track_info.h"
  21 #include "comment.h"
  22 #include "uchar.h"
  23 #include "misc.h"
  24 #include "xmalloc.h"
  25 #include "utils.h"
  26 #include "debug.h"
  27
  28 #include <string.h>
  29
  30 static void track_info_free(struct track_info *ti)
  31 {
  32         comments_free(ti->comments);
  33         free(ti);
  34 }
  35
  36 struct track_info *track_info_new(const char *filename)
  37 {
  38         struct track_info *ti;
  39         int size = strlen(filename) + 1;
  40
  41         ti = xmalloc(sizeof(struct track_info) + size);
  42         memcpy(ti->filename, filename, size);
  43         ti->ref = 1;
  44         return ti;
  45 }
  46
  47 void track_info_ref(struct track_info *ti)
  48 {
  49         BUG_ON(ti->ref < 1);
  50         ti->ref++;
  51 }
  52
  53 void track_info_unref(struct track_info *ti)
  54 {
  55         BUG_ON(ti->ref < 1);
  56         ti->ref--;
  57         if (ti->ref == 0)
  58                 track_info_free(ti);
  59 }
  60
  61 int track_info_has_tag(const struct track_info *ti)
  62 {
  63         return comments_get_val(ti->comments, "artist") ||
  64                 comments_get_val(ti->comments, "album") ||
  65                 comments_get_val(ti->comments, "title");
  66 }
  67
  68 int track_info_matches(struct track_info *ti, const char *text, unsigned int flags)
  69 {
  70         const char *artist = comments_get_val(ti->comments, "artist");
  71         const char *album = comments_get_val(ti->comments, "album");
  72         const char *title = comments_get_val(ti->comments, "title");
  73         char **words;
  74         int i, matched = 1;
  75
  76         words = get_words(text);
  77         if (words[0] == NULL)
  78                 matched = 0;
  79         for (i = 0; words[i]; i++) {
  80                 const char *word = words[i];
  81
  82                 if ((flags & TI_MATCH_ARTIST && artist) ||
  83                     (flags & TI_MATCH_ALBUM && album) ||
  84                     (flags & TI_MATCH_TITLE && title)) {
  85                         if (flags & TI_MATCH_ARTIST && artist && u_strcasestr(artist, word))
  86                                 continue;
  87                         if (flags & TI_MATCH_ALBUM && album && u_strcasestr(album, word))
  88                                 continue;
  89                         if (flags & TI_MATCH_TITLE && title && u_strcasestr(title, word))
  90                                 continue;
  91                 } else {
  92                         /* compare with url or filename without path */
  93                         char *filename = ti->filename;
  94
  95                         if (!is_url(filename)) {
  96                                 char *slash = strrchr(ti->filename, '/');
  97                                 if (slash)
  98                                         filename = slash + 1;
  99                         }
 100                         if (u_strcasestr_filename(filename, word))
 101                                 continue;
 102                 }
 103                 matched = 0;
 104                 break;
 105         }
 106         free_str_array(words);
 107         return matched;
 108 }
 109
 110 static int xstrcasecmp(const char *a, const char *b)
 111 {
 112         if (a == NULL) {
 113                 if (b == NULL)
 114                         return 0;
 115                 return -1;
 116         } else if (b == NULL) {
 117                 return 1;
 118         }
 119         return u_strcasecmp(a, b);
 120 }
 121
 122 int track_info_cmp(const struct track_info *a, const struct track_info *b, const char * const *keys)
 123 {
 124         int i, res = 0;
 125
 126         for (i = 0; keys[i]; i++) {
 127                 const char *key = keys[i];
 128                 const char *av, *bv;
 129
 130                 /* numeric compare for tracknumber and discnumber */
 131                 if (strcmp(key, "tracknumber") == 0) {
 132                         res = comments_get_int(a->comments, key) -
 133                                 comments_get_int(b->comments, key);
 134                         if (res)
 135                                 break;
 136                         continue;
 137                 }
 138                 if (strcmp(key, "discnumber") == 0) {
 139                         res = comments_get_int(a->comments, key) -
 140                                 comments_get_int(b->comments, key);
 141                         if (res)
 142                                 break;
 143                         continue;
 144                 }
 145                 if (strcmp(key, "filename") == 0) {
 146                         /* NOTE: filenames are not necessarily UTF-8 */
 147                         res = strcasecmp(a->filename, b->filename);
 148                         if (res)
 149                                 break;
 150                         continue;
 151                 }
 152                 av = comments_get_val(a->comments, key);
 153                 bv = comments_get_val(b->comments, key);
 154                 res = xstrcasecmp(av, bv);
 155                 if (res)
 156                         break;
 157         }
 158         return res;
 159 }