535cf5b5c9
Use the C99 bool type instead of integer values (1/0 or 0/-1).
242 lines
5.3 KiB
C
242 lines
5.3 KiB
C
/* the Music Player Daemon (MPD)
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* (c)2007 by Warren Dukes (warren.dukes@gmail.com)
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* This project's homepage is: http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "locate.h"
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#include "path.h"
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#include "tag.h"
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#include "song.h"
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#include <glib.h>
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#include <stdlib.h>
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#define LOCATE_TAG_FILE_KEY "file"
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#define LOCATE_TAG_FILE_KEY_OLD "filename"
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#define LOCATE_TAG_ANY_KEY "any"
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int
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locate_parse_type(const char *str)
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{
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int i;
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if (0 == strcasecmp(str, LOCATE_TAG_FILE_KEY) ||
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0 == strcasecmp(str, LOCATE_TAG_FILE_KEY_OLD))
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return LOCATE_TAG_FILE_TYPE;
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if (0 == strcasecmp(str, LOCATE_TAG_ANY_KEY))
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return LOCATE_TAG_ANY_TYPE;
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for (i = 0; i < TAG_NUM_OF_ITEM_TYPES; i++)
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if (0 == strcasecmp(str, mpdTagItemKeys[i]))
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return i;
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return -1;
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}
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static bool
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locate_item_init(struct locate_item *item,
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const char *type_string, const char *needle)
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{
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item->tag = locate_parse_type(type_string);
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if (item->tag < 0)
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return false;
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item->needle = g_strdup(needle);
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return true;
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}
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struct locate_item *
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locate_item_new(const char *type_string, const char *needle)
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{
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struct locate_item *ret = g_new(struct locate_item, 1);
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if (!locate_item_init(ret, type_string, needle)) {
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free(ret);
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ret = NULL;
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}
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return ret;
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}
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void
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locate_item_list_free(int count, struct locate_item *array)
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{
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int i;
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for (i = 0; i < count; i++)
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free(array[i].needle);
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free(array);
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}
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int
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locate_item_list_parse(char *argv[], int argc, struct locate_item **arrayRet)
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{
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int i, j;
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struct locate_item *item;
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if (argc == 0)
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return 0;
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if (argc % 2 != 0)
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return -1;
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*arrayRet = g_new(struct locate_item, argc / 2);
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for (i = 0, item = *arrayRet; i < argc / 2; i++, item++) {
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if (!locate_item_init(item, argv[i * 2], argv[i * 2 + 1]))
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goto fail;
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}
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return argc / 2;
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fail:
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for (j = 0; j < i; j++) {
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free((*arrayRet)[j].needle);
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}
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free(*arrayRet);
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*arrayRet = NULL;
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return -1;
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}
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void
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locate_item_free(struct locate_item *item)
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{
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free(item->needle);
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free(item);
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}
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static bool
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locate_tag_search(const struct song *song, enum tag_type type, const char *str)
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{
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int i;
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char *duplicate;
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bool ret = false;
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bool visited_types[TAG_NUM_OF_ITEM_TYPES] = { false };
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if (type == LOCATE_TAG_FILE_TYPE || type == LOCATE_TAG_ANY_TYPE) {
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char *uri, *p;
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uri = song_get_uri(song);
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p = g_utf8_casefold(uri, -1);
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g_free(uri);
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if (strstr(p, str))
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ret = true;
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g_free(p);
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if (ret == 1 || type == LOCATE_TAG_FILE_TYPE)
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return ret;
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}
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if (!song->tag)
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return false;
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for (i = 0; i < song->tag->numOfItems && !ret; i++) {
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visited_types[song->tag->items[i]->type] = true;
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if (type != LOCATE_TAG_ANY_TYPE &&
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song->tag->items[i]->type != type) {
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continue;
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}
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duplicate = g_utf8_casefold(song->tag->items[i]->value, -1);
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if (*str && strstr(duplicate, str))
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ret = true;
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g_free(duplicate);
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}
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/** If the search critieron was not visited during the sweep
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* through the song's tag, it means this field is absent from
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* the tag or empty. Thus, if the searched string is also
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* empty (first char is a \0), then it's a match as well and
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* we should return true.
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*/
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if (!*str && !visited_types[type])
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return true;
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return ret;
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}
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bool
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locate_song_search(const struct song *song, int num_items,
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const struct locate_item *items)
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{
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for (int i = 0; i < num_items; i++)
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if (!locate_tag_search(song, items[i].tag, items[i].needle))
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return false;
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return true;
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}
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static bool
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locate_tag_match(const struct song *song, enum tag_type type, const char *str)
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{
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int i;
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bool visited_types[TAG_NUM_OF_ITEM_TYPES] = { false };
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if (type == LOCATE_TAG_FILE_TYPE || type == LOCATE_TAG_ANY_TYPE) {
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char *uri = song_get_uri(song);
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bool matches = strcmp(str, uri) == 0;
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g_free(uri);
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if (matches)
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return true;
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if (type == LOCATE_TAG_FILE_TYPE)
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return false;
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}
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if (!song->tag)
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return false;
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for (i = 0; i < song->tag->numOfItems; i++) {
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visited_types[song->tag->items[i]->type] = true;
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if (type != LOCATE_TAG_ANY_TYPE &&
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song->tag->items[i]->type != type) {
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continue;
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}
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if (0 == strcmp(str, song->tag->items[i]->value))
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return true;
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}
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/** If the search critieron was not visited during the sweep
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* through the song's tag, it means this field is absent from
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* the tag or empty. Thus, if the searched string is also
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* empty (first char is a \0), then it's a match as well and
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* we should return true.
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*/
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if (!*str && !visited_types[type])
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return true;
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return false;
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}
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bool
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locate_song_match(const struct song *song, int num_items,
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const struct locate_item *items)
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{
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for (int i = 0; i < num_items; i++)
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if (!locate_tag_match(song, items[i].tag, items[i].needle))
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return false;
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return true;
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}
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