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/*
* Copyright 2010-2013 Various Authors
* Copyright 2010 Johannes Weißl
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef CMUS_U_COLLATE_H
#define CMUS_U_COLLATE_H
/*
* @str1 valid, normalized, null-terminated UTF-8 string
* @str2 valid, normalized, null-terminated UTF-8 string
*
* Compares two strings for ordering using the linguistically
* correct rules for the current locale.
*
* Returns -1 if @str1 compares before @str2, 0 if they compare equal,
* +1 if @str1 compares after @str2.
*/
int u_strcoll(const char *str1, const char *str2);
/*
* @str1 valid, normalized, null-terminated UTF-8 string
* @str2 valid, normalized, null-terminated UTF-8 string
*
* Like u_strcoll(), but do casefolding before comparing.
*/
int u_strcasecoll(const char *str1, const char *str2);
/*
* @str1 valid, normalized, null-terminated UTF-8 string or NULL
* @str2 valid, normalized, null-terminated UTF-8 string or NULL
*
* Like u_strcasecoll(), but handle NULL pointers gracefully.
*/
int u_strcasecoll0(const char *str1, const char *str2);
/*
* @str valid, normalized, null-terminated UTF-8 string
*
* Converts a string into a collation key that can be compared
* with other collation keys produced by the same function using
* strcmp().
*
* Returns a newly allocated string.
*/
char *u_strcoll_key(const char *str);
/*
* @str valid, normalized, null-terminated UTF-8 string
*
* Like u_strcoll_key(), but do casefolding before generating key.
*
* Returns a newly allocated string.
*/
char *u_strcasecoll_key(const char *str);
/*
* @str valid, normalized, null-terminated UTF-8 string or NULL
*
* Like u_strcasecoll_key(), but handle NULL pointers gracefully.
*/
char *u_strcasecoll_key0(const char *str);
#endif
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