/src/linebreak/linebreak.h
http://ftk.googlecode.com/ · C Header · 87 lines · 30 code · 11 blank · 46 comment · 0 complexity · 905f2cab3cadd73f4e2e888bbcebd918 MD5 · raw file
- /* vim: set tabstop=4 shiftwidth=4: */
- /*
- * Line breaking in a Unicode sequence. Designed to be used in a
- * generic text renderer.
- *
- * Copyright (C) 2008-2010 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 14 (UAX #14):
- * <URL:http://www.unicode.org/reports/tr14/>
- *
- * When this library was designed, this annex was at Revision 19, for
- * Unicode 5.0.0:
- * <URL:http://www.unicode.org/reports/tr14/tr14-19.html>
- *
- * This library has been updated according to Revision 24, for
- * Unicode 5.2.0:
- * <URL:http://www.unicode.org/reports/tr14/tr14-24.html>
- *
- * The Unicode Terms of Use are available at
- * <URL:http://www.unicode.org/copyright.html>
- */
- /**
- * @file linebreak.h
- *
- * Header file for the line breaking algorithm.
- *
- * @version 2.0, 2010/01/03
- * @author Wu Yongwei
- */
- #ifndef LINEBREAK_H
- #define LINEBREAK_H
- #include <stddef.h>
- #ifdef __cplusplus
- extern "C" {
- #endif
- #define LINEBREAK_VERSION 0x0200 /**< Version of the library linebreak */
- extern const int linebreak_version;
- #ifndef LINEBREAK_UTF_TYPES_DEFINED
- #define LINEBREAK_UTF_TYPES_DEFINED
- typedef unsigned char utf8_t; /**< Type for UTF-8 data points */
- typedef unsigned short utf16_t; /**< Type for UTF-16 data points */
- typedef unsigned int utf32_t; /**< Type for UTF-32 data points */
- #endif
- #define LINEBREAK_MUSTBREAK 0 /**< Break is mandatory */
- #define LINEBREAK_ALLOWBREAK 1 /**< Break is allowed */
- #define LINEBREAK_NOBREAK 2 /**< No break is possible */
- #define LINEBREAK_INSIDEACHAR 3 /**< A UTF-8/16 sequence is unfinished */
- void init_linebreak(void);
- void set_linebreaks_utf8(
- const utf8_t *s, size_t len, const char* lang, char *brks);
- void set_linebreaks_utf16(
- const utf16_t *s, size_t len, const char* lang, char *brks);
- void set_linebreaks_utf32(
- const utf32_t *s, size_t len, const char* lang, char *brks);
- int is_line_breakable(utf32_t char1, utf32_t char2, const char* lang);
- #ifdef __cplusplus
- }
- #endif
- #endif /* LINEBREAK_H */