awtk/3rd/libunibreak/wordbreak.h
2018-10-13 18:40:00 +08:00

77 lines
2.4 KiB
C

/* vim: set expandtab tabstop=4 softtabstop=4 shiftwidth=4: */
/*
* Word breaking in a Unicode sequence. Designed to be used in a
* generic text renderer.
*
* Copyright (C) 2013-2016 Tom Hacohen <tom at stosb dot com>
* Copyright (C) 2018 Wu Yongwei <wuyongwei at gmail dot com>
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the author be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute
* it freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must
* not claim that you wrote the original software. If you use this
* software in a product, an acknowledgement in the product
* documentation would be appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must
* not be misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source
* distribution.
*
* The main reference is Unicode Standard Annex 29 (UAX #29):
* <URL:http://unicode.org/reports/tr29>
*
* When this library was designed, this annex was at Revision 17, for
* Unicode 6.0.0:
* <URL:http://www.unicode.org/reports/tr29/tr29-17.html>
*
* This library has been updated according to Revision 33, for
* Unicode 11.0.0:
* <URL:http://www.unicode.org/reports/tr29/tr29-33.html>
*
* The Unicode Terms of Use are available at
* <URL:http://www.unicode.org/copyright.html>
*/
/**
* @file wordbreak.h
*
* Header file for the word breaking (segmentation) algorithm.
*
* @author Tom Hacohen
*/
#ifndef WORDBREAK_H
#define WORDBREAK_H
#include <stddef.h>
#include "unibreakbase.h"
#ifdef __cplusplus
extern "C" {
#endif
#define WORDBREAK_BREAK 0 /**< Break is allowed */
#define WORDBREAK_NOBREAK 1 /**< No break is allowed */
#define WORDBREAK_INSIDEACHAR 2 /**< A UTF-8/16 sequence is unfinished */
void init_wordbreak(void);
void set_wordbreaks_utf8(
const utf8_t *s, size_t len, const char* lang, char *brks);
void set_wordbreaks_utf16(
const utf16_t *s, size_t len, const char* lang, char *brks);
void set_wordbreaks_utf32(
const utf32_t *s, size_t len, const char* lang, char *brks);
#ifdef __cplusplus
}
#endif
#endif /* WORDBREAK_H */