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Diffstat (limited to '')
-rw-r--r-- | src/cue/CueParser.cxx | 321 |
1 files changed, 0 insertions, 321 deletions
diff --git a/src/cue/CueParser.cxx b/src/cue/CueParser.cxx deleted file mode 100644 index 60b33b6b4..000000000 --- a/src/cue/CueParser.cxx +++ /dev/null @@ -1,321 +0,0 @@ -/* - * Copyright (C) 2003-2013 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 "CueParser.hxx" -#include "util/StringUtil.hxx" -#include "util/CharUtil.hxx" -#include "Song.hxx" -#include "tag/Tag.hxx" - -#include <glib.h> - -#include <assert.h> -#include <string.h> -#include <stdlib.h> - -CueParser::CueParser() - :state(HEADER), tag(new Tag()), - current(nullptr), - previous(nullptr), - finished(nullptr), - end(false) {} - -CueParser::~CueParser() -{ - delete tag; - - if (current != nullptr) - current->Free(); - - if (previous != nullptr) - previous->Free(); - - if (finished != nullptr) - finished->Free(); -} - -static const char * -cue_next_word(char *p, char **pp) -{ - assert(p >= *pp); - assert(!IsWhitespaceNotNull(*p)); - - const char *word = p; - while (!IsWhitespaceOrNull(*p)) - ++p; - - *p = 0; - *pp = p + 1; - return word; -} - -static const char * -cue_next_quoted(char *p, char **pp) -{ - assert(p >= *pp); - assert(p[-1] == '"'); - - char *end = strchr(p, '"'); - if (end == nullptr) { - /* syntax error - ignore it silently */ - *pp = p + strlen(p); - return p; - } - - *end = 0; - *pp = end + 1; - - return p; -} - -static const char * -cue_next_token(char **pp) -{ - char *p = strchug_fast(*pp); - if (*p == 0) - return nullptr; - - return cue_next_word(p, pp); -} - -static const char * -cue_next_value(char **pp) -{ - char *p = strchug_fast(*pp); - if (*p == 0) - return nullptr; - - if (*p == '"') - return cue_next_quoted(p + 1, pp); - else - return cue_next_word(p, pp); -} - -static void -cue_add_tag(Tag &tag, TagType type, char *p) -{ - const char *value = cue_next_value(&p); - if (value != nullptr) - tag.AddItem(type, value); - -} - -static void -cue_parse_rem(char *p, Tag &tag) -{ - const char *type = cue_next_token(&p); - if (type == nullptr) - return; - - TagType type2 = tag_name_parse_i(type); - if (type2 != TAG_NUM_OF_ITEM_TYPES) - cue_add_tag(tag, type2, p); -} - -Tag * -CueParser::GetCurrentTag() -{ - if (state == HEADER) - return tag; - else if (state == TRACK) - return current->tag; - else - return nullptr; -} - -static int -cue_parse_position(const char *p) -{ - char *endptr; - unsigned long minutes = strtoul(p, &endptr, 10); - if (endptr == p || *endptr != ':') - return -1; - - p = endptr + 1; - unsigned long seconds = strtoul(p, &endptr, 10); - if (endptr == p || *endptr != ':') - return -1; - - p = endptr + 1; - unsigned long frames = strtoul(p, &endptr, 10); - if (endptr == p || *endptr != 0) - return -1; - - return minutes * 60000 + seconds * 1000 + frames * 1000 / 75; -} - -void -CueParser::Commit() -{ - /* the caller of this library must call cue_parser_get() often - enough */ - assert(finished == nullptr); - assert(!end); - - if (current == nullptr) - return; - - finished = previous; - previous = current; - current = nullptr; -} - -void -CueParser::Feed2(char *p) -{ - assert(!end); - assert(p != nullptr); - - const char *command = cue_next_token(&p); - if (command == nullptr) - return; - - if (strcmp(command, "REM") == 0) { - Tag *current_tag = GetCurrentTag(); - if (current_tag != nullptr) - cue_parse_rem(p, *current_tag); - } else if (strcmp(command, "PERFORMER") == 0) { - /* MPD knows a "performer" tag, but it is not a good - match for this CUE tag; from the Hydrogenaudio - Knowledgebase: "At top-level this will specify the - CD artist, while at track-level it specifies the - track artist." */ - - TagType type = state == TRACK - ? TAG_ARTIST - : TAG_ALBUM_ARTIST; - - Tag *current_tag = GetCurrentTag(); - if (current_tag != nullptr) - cue_add_tag(*current_tag, type, p); - } else if (strcmp(command, "TITLE") == 0) { - if (state == HEADER) - cue_add_tag(*tag, TAG_ALBUM, p); - else if (state == TRACK) - cue_add_tag(*current->tag, TAG_TITLE, p); - } else if (strcmp(command, "FILE") == 0) { - Commit(); - - const char *new_filename = cue_next_value(&p); - if (new_filename == nullptr) - return; - - const char *type = cue_next_token(&p); - if (type == nullptr) - return; - - if (strcmp(type, "WAVE") != 0 && - strcmp(type, "MP3") != 0 && - strcmp(type, "AIFF") != 0) { - state = IGNORE_FILE; - return; - } - - state = WAVE; - filename = new_filename; - } else if (state == IGNORE_FILE) { - return; - } else if (strcmp(command, "TRACK") == 0) { - Commit(); - - const char *nr = cue_next_token(&p); - if (nr == nullptr) - return; - - const char *type = cue_next_token(&p); - if (type == nullptr) - return; - - if (strcmp(type, "AUDIO") != 0) { - state = IGNORE_TRACK; - return; - } - - state = TRACK; - current = Song::NewRemote(filename.c_str()); - assert(current->tag == nullptr); - current->tag = new Tag(*tag); - current->tag->AddItem(TAG_TRACK, nr); - last_updated = false; - } else if (state == IGNORE_TRACK) { - return; - } else if (state == TRACK && strcmp(command, "INDEX") == 0) { - const char *nr = cue_next_token(&p); - if (nr == nullptr) - return; - - const char *position = cue_next_token(&p); - if (position == nullptr) - return; - - int position_ms = cue_parse_position(position); - if (position_ms < 0) - return; - - if (!last_updated && previous != nullptr && - previous->start_ms < (unsigned)position_ms) { - last_updated = true; - previous->end_ms = position_ms; - previous->tag->time = - (previous->end_ms - previous->start_ms + 500) / 1000; - } - - current->start_ms = position_ms; - } -} - -void -CueParser::Feed(const char *line) -{ - assert(!end); - assert(line != nullptr); - - char *allocated = g_strdup(line); - Feed2(allocated); - g_free(allocated); -} - -void -CueParser::Finish() -{ - if (end) - /* has already been called, ignore */ - return; - - Commit(); - end = true; -} - -Song * -CueParser::Get() -{ - if (finished == nullptr && end) { - /* cue_parser_finish() has been called already: - deliver all remaining (partial) results */ - assert(current == nullptr); - - finished = previous; - previous = nullptr; - } - - Song *song = finished; - finished = nullptr; - return song; -} |