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Diffstat (limited to 'contrib/idn/idnkit-1.0-src/include/idn/utf8.h')
-rw-r--r-- | contrib/idn/idnkit-1.0-src/include/idn/utf8.h | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/contrib/idn/idnkit-1.0-src/include/idn/utf8.h b/contrib/idn/idnkit-1.0-src/include/idn/utf8.h new file mode 100644 index 0000000..ee5f589 --- /dev/null +++ b/contrib/idn/idnkit-1.0-src/include/idn/utf8.h @@ -0,0 +1,137 @@ +/* $Id: utf8.h,v 1.1.1.1 2003/06/04 00:25:44 marka Exp $ */ +/* + * Copyright (c) 2000 Japan Network Information Center. All rights reserved. + * + * By using this file, you agree to the terms and conditions set forth bellow. + * + * LICENSE TERMS AND CONDITIONS + * + * The following License Terms and Conditions apply, unless a different + * license is obtained from Japan Network Information Center ("JPNIC"), + * a Japanese association, Kokusai-Kougyou-Kanda Bldg 6F, 2-3-4 Uchi-Kanda, + * Chiyoda-ku, Tokyo 101-0047, Japan. + * + * 1. Use, Modification and Redistribution (including distribution of any + * modified or derived work) in source and/or binary forms is permitted + * under this License Terms and Conditions. + * + * 2. Redistribution of source code must retain the copyright notices as they + * appear in each source code file, this License Terms and Conditions. + * + * 3. Redistribution in binary form must reproduce the Copyright Notice, + * this License Terms and Conditions, in the documentation and/or other + * materials provided with the distribution. For the purposes of binary + * distribution the "Copyright Notice" refers to the following language: + * "Copyright (c) 2000-2002 Japan Network Information Center. All rights reserved." + * + * 4. The name of JPNIC may not be used to endorse or promote products + * derived from this Software without specific prior written approval of + * JPNIC. + * + * 5. Disclaimer/Limitation of Liability: THIS SOFTWARE IS PROVIDED BY JPNIC + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JPNIC BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. + */ + +#ifndef IDN_UTF8_H +#define IDN_UTF8_H 1 + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * UTF-8 encoded string facility. + */ + +#include <idn/export.h> + +/* + * Get the length of a character. + * + * Get the length (in bytes) of a character whose first byte is pointed + * by 's'. Since this function only looks one first byte to determine the + * length, it is possible some of the following bytes are invalid. + */ +IDN_EXPORT int +idn_utf8_mblen(const char *s); + +/* + * Get one character. + * + * Get the first character of the string pointed by 's', and copy it + * to 'buf', whose length is 'len'. Returns the number of bytes copied, + * or zero if the encoding is invalid or len is too small. + * + * The area pointed by 'buf' must be large enough to store any UTF-8 encoded + * character. + * + * Note that the copied string is not NUL-terminated. + */ +IDN_EXPORT int +idn_utf8_getmb(const char *s, size_t len, char *buf); + +/* + * Get one character in UCS-4. + * + * Similar to 'idn_utf8_getmb', except that the result is not in UTF-8 + * encoding, but in UCS-4 format (plain 32bit integer value). + */ +IDN_EXPORT int +idn_utf8_getwc(const char *s, size_t len, unsigned long *vp); + +/* + * Put one character. + * + * This function is an opposite of 'idn_utf8_getwc'. It takes a UCS-4 + * value 'v', convert it to UTF-8 encoded sequence, and store it to 's', + * whose length is 'len'. It returns the number of bytes written, or + * zero 'v' is out of range or 'len' is too small. + */ +IDN_EXPORT int +idn_utf8_putwc(char *s, size_t len, unsigned long v); + +/* + * Check the validity of UTF-8 encoded character. + * + * Check if the character pointed by 's' is a valid UTF-8 encoded + * character. Return the length of the character (in bytes) if it is valid, + * 0 otherwise. + */ +IDN_EXPORT int +idn_utf8_isvalidchar(const char *s); + +/* + * Check the validity of UTF-8 encoded string. + * + * Check if the NUL-terminated string 's' is valid as a UTF-8 encoded + * string. Return 1 if it is valid, 0 otherwise. + */ +IDN_EXPORT int +idn_utf8_isvalidstring(const char *s); + +/* + * Find first byte of a character. + * + * Find the first byte of a character 's' points to. 's' may point + * the 2nd or later byte of a character. 'known_top' is a pointer to + * a string which contains 's', and is known to be the first byte of + * a character. If it couldn't find the first byte between 'known_top' + * and 's', NULL will be returned. + */ +IDN_EXPORT char * +idn_utf8_findfirstbyte(const char *s, const char *known_top); + +#ifdef __cplusplus +} +#endif + +#endif /* IDN_UTF8_H */ |