utf8xx.h

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//-*- Mode: C++ -*-
//  DDC originally by Alexey Sokirko
//  Changes and modifications 2011-2015 by Bryan Jurish
//
//  This file is part of DDC.
// 
//  DDC is free software: you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
// 
//  DDC 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 Lesser General Public License for more details.
// 
//  You should have received a copy of the GNU Lesser General Public License
//  along with DDC.  If not, see <http://www.gnu.org/licenses/>.
//
#ifndef UTF8XX_H
#define UTF8XX_H

/*--moo--*/
#include <stdint.h>
#include <string.h>
#include <assert.h>

#ifndef u_int32_t
# define u_int32_t uint32_t
#endif

#ifndef ucs4
typedef u_int32_t ucs4;
#endif

#ifndef uchar
typedef unsigned char uchar;
#endif

#define UTF8XX_MAXBYTES  4
#define UTF8XX_MAXBYTES1 5
/*--/moo--*/

#include <stdarg.h>

#include <string>
#include <vector>

#define isutf(c) (((c)&0xC0)!=0x80)

typedef std::vector<ucs4> ucs4str;

typedef std::string utf8str;

int u8_seqlen(const utf8str &s, size_t i);

size_t u8_toucs(ucs4str &dst, const utf8str &src);

ucs4str u8_toucs(const utf8str &src);

size_t u8_toutf8(utf8str &dst, const ucs4str &src);

utf8str u8_toutf8(const ucs4str &src);

size_t u8_wc_len(ucs4 ch);

size_t u8_ws_len(const ucs4str &src);

size_t u8_wc_toutf8(utf8str &dst, ucs4 ch);

utf8str u8_wc_toutf8(ucs4 ch);


size_t u8_offset(const utf8str &s, int charnum);

size_t u8_charnum(const utf8str &s, int offset);
//int u8_charnum(char *s, int offset);

ucs4 u8_nextchar(const utf8str &s, size_t *i);

ucs4 u8_nextcharn(const utf8str &s, size_t slen, size_t *i);

size_t u8_strlen(const utf8str &s);

void u8_inc(const utf8str &s, size_t *i);

void u8_dec(const utf8str &s, size_t *i);

#ifdef UTF8XX_C_API
//-- NOT YET CONVERTED TO C++ CONVENTIONS

int u8_read_escape_sequence(char *src, u_int32_t *dest);

int u8_escape_wchar(char *buf, int sz, u_int32_t ch);

int u8_unescape(char *buf, int sz, char *src);

int u8_escape(char *buf, int sz, char *src, int escape_quotes);

int octal_digit(char c);
int hex_digit(char c);

char *u8_strchr(char *s, u_int32_t ch, int *charn);

char *u8_memchr(char *s, u_int32_t ch, size_t sz, int *charn);

int u8_is_locale_utf8(char *locale);

int u8_vprintf(char *fmt, va_list ap);
int u8_printf(char *fmt, ...);

#endif /* UTFXX_C_API */

#endif /* UTF8XX_H */

/*--- emacs style variables ---
 * Local Variables:
 *  mode: C++
 *  c-file-style: "ellemtel"
 *  c-basic-offset: 4
 *  tab-width: 8
 *  indent-tabs-mode: nil
 * End:
 */