netsurf/utils/utf8.h

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/*
* Copyright 2005 John M Bell <jmb202@ecs.soton.ac.uk>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/** \file
* UTF-8 manipulation functions (interface).
*/
#ifndef _NETSURF_UTILS_UTF8_H_
#define _NETSURF_UTILS_UTF8_H_
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#include <stdbool.h>
#include <stdint.h>
typedef enum {
UTF8_CONVERT_OK,
UTF8_CONVERT_NOMEM,
UTF8_CONVERT_BADENC
} utf8_convert_ret;
uint32_t utf8_to_ucs4(const char *s, size_t l);
size_t utf8_from_ucs4(uint32_t c, char *s);
size_t utf8_length(const char *s);
size_t utf8_bounded_length(const char *s, size_t l);
size_t utf8_bounded_byte_length(const char *s, size_t l, size_t c);
size_t utf8_char_byte_length(const char *s);
size_t utf8_prev(const char *s, size_t o);
size_t utf8_next(const char *s, size_t l, size_t o);
utf8_convert_ret utf8_to_enc(const char *string, const char *encname,
size_t len, char **result);
utf8_convert_ret utf8_from_enc(const char *string, const char *encname,
size_t len, char **result);
utf8_convert_ret utf8_to_html(const char *string, const char *encname,
size_t len, char **result);
bool utf8_save_text(const char *utf8_text, const char *path);
/* These two are platform specific */
utf8_convert_ret utf8_to_local_encoding(const char *string, size_t len,
char **result);
utf8_convert_ret utf8_from_local_encoding(const char *string, size_t len,
char **result);
void utf8_finalise(void);
#endif