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/* 
 *  libpinyin
 *  Library to deal with pinyin.
 *  
 *  Copyright (C) 2010 Peng Wu
 *  
 *  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.
 */

#ifndef TAG_UTILITY_H
#define TAG_UTILITY_H

#include "novel_types.h"

/* Note: the optional tag has been removed from the first implementation.
 * Maybe the optional tag will be added back later.
 */

namespace pinyin{

bool taglib_init();

/* Note: most tags are separated by ',' or ':' . */
bool taglib_add_tag(int line_type, const char * line_tag, int num_of_values, const char * required_tags, const char * ignored_tags);

/* most parameters are hash table of string (const char *). */
bool taglib_read(const char * input_line, int & line_type, GPtrArray * values, GHashTable * required);

/* Note: taglib_write is omited, as printf is more suitable for this. */

/* Note the following function is only available when the optional tag exists.
 * bool taglib_report_status(int line_type);
 */

/* remove the tag of type line_type. */
bool taglib_remove_tag(int line_type);

/* the following functions are used to save current known tag list in stack.
 * Used when the parsing context is changed.
 */
bool taglib_push_state();
bool taglib_pop_state();

bool taglib_fini();


class PhraseLargeTable;
class FacadePhraseIndex;

phrase_token_t taglib_string_to_token(PhraseLargeTable * phrases,
                                      const char * string);

char * taglib_token_to_string(FacadePhraseIndex * phrase_index,
                              phrase_token_t token);

};

#endif