From 257a0dee758049586efbf0dc3f0339b0cef03456 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Sun, 27 Jan 2013 17:38:09 +0100 Subject: playlist/*: convert to C++ --- src/playlist/asx_playlist_plugin.c | 323 ------------------------------------- 1 file changed, 323 deletions(-) delete mode 100644 src/playlist/asx_playlist_plugin.c (limited to 'src/playlist/asx_playlist_plugin.c') diff --git a/src/playlist/asx_playlist_plugin.c b/src/playlist/asx_playlist_plugin.c deleted file mode 100644 index 298687859..000000000 --- a/src/playlist/asx_playlist_plugin.c +++ /dev/null @@ -1,323 +0,0 @@ -/* - * Copyright (C) 2003-2011 The Music Player Daemon Project - * http://www.musicpd.org - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include "config.h" -#include "playlist/asx_playlist_plugin.h" -#include "playlist_plugin.h" -#include "input_stream.h" -#include "song.h" -#include "tag.h" - -#include - -#include -#include - -#undef G_LOG_DOMAIN -#define G_LOG_DOMAIN "asx" - -/** - * This is the state object for the GLib XML parser. - */ -struct asx_parser { - /** - * The list of songs (in reverse order because that's faster - * while adding). - */ - GSList *songs; - - /** - * The current position in the XML file. - */ - enum { - ROOT, ENTRY, - } state; - - /** - * The current tag within the "entry" element. This is only - * valid if state==ENTRY. TAG_NUM_OF_ITEM_TYPES means there - * is no (known) tag. - */ - enum tag_type tag; - - /** - * The current song. It is allocated after the "location" - * element. - */ - struct song *song; -}; - -static const gchar * -get_attribute(const gchar **attribute_names, const gchar **attribute_values, - const gchar *name) -{ - for (unsigned i = 0; attribute_names[i] != NULL; ++i) - if (g_ascii_strcasecmp(attribute_names[i], name) == 0) - return attribute_values[i]; - - return NULL; -} - -static void -asx_start_element(G_GNUC_UNUSED GMarkupParseContext *context, - const gchar *element_name, - const gchar **attribute_names, - const gchar **attribute_values, - gpointer user_data, G_GNUC_UNUSED GError **error) -{ - struct asx_parser *parser = user_data; - - switch (parser->state) { - case ROOT: - if (g_ascii_strcasecmp(element_name, "entry") == 0) { - parser->state = ENTRY; - parser->song = song_remote_new("asx:"); - parser->tag = TAG_NUM_OF_ITEM_TYPES; - } - - break; - - case ENTRY: - if (g_ascii_strcasecmp(element_name, "ref") == 0) { - const gchar *href = get_attribute(attribute_names, - attribute_values, - "href"); - if (href != NULL) { - /* create new song object, and copy - the existing tag over; we cannot - replace the existing song's URI, - because that attribute is - immutable */ - struct song *song = song_remote_new(href); - - if (parser->song != NULL) { - song->tag = parser->song->tag; - parser->song->tag = NULL; - song_free(parser->song); - } - - parser->song = song; - } - } else if (g_ascii_strcasecmp(element_name, "author") == 0) - /* is that correct? or should it be COMPOSER - or PERFORMER? */ - parser->tag = TAG_ARTIST; - else if (g_ascii_strcasecmp(element_name, "title") == 0) - parser->tag = TAG_TITLE; - - break; - } -} - -static void -asx_end_element(G_GNUC_UNUSED GMarkupParseContext *context, - const gchar *element_name, - gpointer user_data, G_GNUC_UNUSED GError **error) -{ - struct asx_parser *parser = user_data; - - switch (parser->state) { - case ROOT: - break; - - case ENTRY: - if (g_ascii_strcasecmp(element_name, "entry") == 0) { - if (strcmp(parser->song->uri, "asx:") != 0) - parser->songs = g_slist_prepend(parser->songs, - parser->song); - else - song_free(parser->song); - - parser->state = ROOT; - } else - parser->tag = TAG_NUM_OF_ITEM_TYPES; - - break; - } -} - -static void -asx_text(G_GNUC_UNUSED GMarkupParseContext *context, - const gchar *text, gsize text_len, - gpointer user_data, G_GNUC_UNUSED GError **error) -{ - struct asx_parser *parser = user_data; - - switch (parser->state) { - case ROOT: - break; - - case ENTRY: - if (parser->tag != TAG_NUM_OF_ITEM_TYPES) { - if (parser->song->tag == NULL) - parser->song->tag = tag_new(); - tag_add_item_n(parser->song->tag, parser->tag, - text, text_len); - } - - break; - } -} - -static const GMarkupParser asx_parser = { - .start_element = asx_start_element, - .end_element = asx_end_element, - .text = asx_text, -}; - -static void -song_free_callback(gpointer data, G_GNUC_UNUSED gpointer user_data) -{ - struct song *song = data; - - song_free(song); -} - -static void -asx_parser_destroy(gpointer data) -{ - struct asx_parser *parser = data; - - if (parser->state >= ENTRY) - song_free(parser->song); - - g_slist_foreach(parser->songs, song_free_callback, NULL); - g_slist_free(parser->songs); -} - -/* - * The playlist object - * - */ - -struct asx_playlist { - struct playlist_provider base; - - GSList *songs; -}; - -static struct playlist_provider * -asx_open_stream(struct input_stream *is) -{ - struct asx_parser parser = { - .songs = NULL, - .state = ROOT, - }; - struct asx_playlist *playlist; - GMarkupParseContext *context; - char buffer[1024]; - size_t nbytes; - bool success; - GError *error = NULL; - - /* parse the ASX XML file */ - - context = g_markup_parse_context_new(&asx_parser, - G_MARKUP_TREAT_CDATA_AS_TEXT, - &parser, asx_parser_destroy); - - while (true) { - nbytes = input_stream_lock_read(is, buffer, sizeof(buffer), - &error); - if (nbytes == 0) { - if (error != NULL) { - g_markup_parse_context_free(context); - g_warning("%s", error->message); - g_error_free(error); - return NULL; - } - - break; - } - - success = g_markup_parse_context_parse(context, buffer, nbytes, - &error); - if (!success) { - g_warning("XML parser failed: %s", error->message); - g_error_free(error); - g_markup_parse_context_free(context); - return NULL; - } - } - - success = g_markup_parse_context_end_parse(context, &error); - if (!success) { - g_warning("XML parser failed: %s", error->message); - g_error_free(error); - g_markup_parse_context_free(context); - return NULL; - } - - /* create a #asx_playlist object from the parsed song list */ - - playlist = g_new(struct asx_playlist, 1); - playlist_provider_init(&playlist->base, &asx_playlist_plugin); - playlist->songs = g_slist_reverse(parser.songs); - parser.songs = NULL; - - g_markup_parse_context_free(context); - - return &playlist->base; -} - -static void -asx_close(struct playlist_provider *_playlist) -{ - struct asx_playlist *playlist = (struct asx_playlist *)_playlist; - - g_slist_foreach(playlist->songs, song_free_callback, NULL); - g_slist_free(playlist->songs); - g_free(playlist); -} - -static struct song * -asx_read(struct playlist_provider *_playlist) -{ - struct asx_playlist *playlist = (struct asx_playlist *)_playlist; - struct song *song; - - if (playlist->songs == NULL) - return NULL; - - song = playlist->songs->data; - playlist->songs = g_slist_remove(playlist->songs, song); - - return song; -} - -static const char *const asx_suffixes[] = { - "asx", - NULL -}; - -static const char *const asx_mime_types[] = { - "video/x-ms-asf", - NULL -}; - -const struct playlist_plugin asx_playlist_plugin = { - .name = "asx", - - .open_stream = asx_open_stream, - .close = asx_close, - .read = asx_read, - - .suffixes = asx_suffixes, - .mime_types = asx_mime_types, -}; -- cgit v1.2.3