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/*
* Copyright (C) 2003-2010 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 "tag_ape.h"
#include "tag.h"
#include "tag_table.h"
#include "ape.h"
static const char *const ape_tag_names[TAG_NUM_OF_ITEM_TYPES] = {
[TAG_ALBUM_ARTIST] = "album artist",
[TAG_DATE] = "year",
};
static enum tag_type
tag_ape_name_parse(const char *name)
{
enum tag_type type = tag_table_lookup(ape_tag_names, name);
if (type == TAG_NUM_OF_ITEM_TYPES)
type = tag_name_parse_i(name);
return type;
}
static struct tag *
tag_ape_import_item(struct tag *tag, unsigned long flags,
const char *key, const char *value, size_t value_length)
{
/* we only care about utf-8 text tags */
if ((flags & (0x3 << 1)) != 0)
return tag;
enum tag_type type = tag_ape_name_parse(key);
if (type == TAG_NUM_OF_ITEM_TYPES)
return tag;
if (tag == NULL)
tag = tag_new();
const char *end = value + value_length;
while (true) {
/* multiple values are separated by null bytes */
const char *n = memchr(value, 0, end - value);
if (n != NULL) {
if (n > value)
tag_add_item_n(tag, type, value, n - value);
value = n + 1;
} else {
if (end > value)
tag_add_item_n(tag, type, value, end - value);
break;
}
}
return tag;
}
struct tag_ape_ctx {
struct tag *tag;
};
static bool
tag_ape_callback(unsigned long flags, const char *key,
const char *value, size_t value_length, void *_ctx)
{
struct tag_ape_ctx *ctx = _ctx;
ctx->tag = tag_ape_import_item(ctx->tag, flags, key,
value, value_length);
return true;
}
struct tag *
tag_ape_load(const char *file)
{
struct tag_ape_ctx ctx = { .tag = NULL };
tag_ape_scan(file, tag_ape_callback, &ctx);
return ctx.tag;
}
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