78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/*
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* Copyright 2010-2013 Various Authors
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* Copyright 2010 Johannes Weißl
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef CMUS_U_COLLATE_H
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#define CMUS_U_COLLATE_H
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/*
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* @str1 valid, normalized, null-terminated UTF-8 string
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* @str2 valid, normalized, null-terminated UTF-8 string
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*
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* Compares two strings for ordering using the linguistically
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* correct rules for the current locale.
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*
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* Returns -1 if @str1 compares before @str2, 0 if they compare equal,
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* +1 if @str1 compares after @str2.
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*/
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int u_strcoll(const char *str1, const char *str2);
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/*
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* @str1 valid, normalized, null-terminated UTF-8 string
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* @str2 valid, normalized, null-terminated UTF-8 string
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*
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* Like u_strcoll(), but do casefolding before comparing.
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*/
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int u_strcasecoll(const char *str1, const char *str2);
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/*
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* @str1 valid, normalized, null-terminated UTF-8 string or NULL
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* @str2 valid, normalized, null-terminated UTF-8 string or NULL
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*
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* Like u_strcasecoll(), but handle NULL pointers gracefully.
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*/
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int u_strcasecoll0(const char *str1, const char *str2);
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/*
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* @str valid, normalized, null-terminated UTF-8 string
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*
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* Converts a string into a collation key that can be compared
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* with other collation keys produced by the same function using
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* strcmp().
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*
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* Returns a newly allocated string.
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*/
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char *u_strcoll_key(const char *str);
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/*
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* @str valid, normalized, null-terminated UTF-8 string
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*
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* Like u_strcoll_key(), but do casefolding before generating key.
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*
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* Returns a newly allocated string.
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*/
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char *u_strcasecoll_key(const char *str);
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/*
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* @str valid, normalized, null-terminated UTF-8 string or NULL
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*
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* Like u_strcasecoll_key(), but handle NULL pointers gracefully.
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*/
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char *u_strcasecoll_key0(const char *str);
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#endif
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