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/* Character set conversion with error handling.
Copyright (C) 2001-2007 Free Software Foundation, Inc.
Written by Bruno Haible and Simon Josefsson.
This program 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; either version 2, or (at your option)
any later version.
This program 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, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#ifndef _STRICONVEH_H
#define _STRICONVEH_H
#include <stddef.h>
#if HAVE_ICONV
#include <iconv.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* Handling of unconvertible characters. */
enum iconv_ilseq_handler
{
iconveh_error, /* return and set errno = EILSEQ */
iconveh_question_mark, /* use one '?' per unconvertible character */
iconveh_escape_sequence /* use escape sequence \uxxxx or \Uxxxxxxxx */
};
#if HAVE_ICONV
/* Convert an entire string from one encoding to another, using iconv.
The original string is at [SRC,...,SRC+SRCLEN-1].
The conversion descriptor from FROMCODE to TOCODE is passed as CD.
CD1 is the conversion descriptor from FROM_CODESET to UTF-8 (or
(iconv_t)(-1) if FROM_CODESET is UTF-8).
CD2 is the conversion descriptor from UTF-8 to TO_CODESET (or (iconv_t)(-1)
if TO_CODESET is UTF-8).
*RESULTP should initially contain NULL or a malloced memory block.
May change the size of the allocated memory block in *RESULTP, storing
its new address in *RESULTP and its new length in *LENGTHP.
Return value: 0 if successful, otherwise -1 and errno set.
If successful, the resulting string is stored in *RESULTP and its length
in *LENGTHP. */
extern int
mem_cd_iconveh (const char *src, size_t srclen,
iconv_t cd, iconv_t cd1, iconv_t cd2,
enum iconv_ilseq_handler handler,
char **resultp, size_t *lengthp);
/* Convert an entire string from one encoding to another, using iconv.
The original string is the NUL-terminated string starting at SRC.
The conversion descriptor is passed as CD. Both the "from" and the "to"
encoding must use a single NUL byte at the end of the string (i.e. not
UCS-2, UCS-4, UTF-16, UTF-32).
CD1 is the conversion descriptor from FROM_CODESET to UTF-8 (or
(iconv_t)(-1) if FROM_CODESET is UTF-8).
CD2 is the conversion descriptor from UTF-8 to TO_CODESET (or (iconv_t)(-1)
if TO_CODESET is UTF-8).
Allocate a malloced memory block for the result.
Return value: the freshly allocated resulting NUL-terminated string if
successful, otherwise NULL and errno set. */
extern char *
str_cd_iconveh (const char *src,
iconv_t cd, iconv_t cd1, iconv_t cd2,
enum iconv_ilseq_handler handler);
#endif
/* Convert an entire string from one encoding to another, using iconv.
The original string is the NUL-terminated string starting at SRC.
Both the "from" and the "to" encoding must use a single NUL byte at the
end of the string (i.e. not UCS-2, UCS-4, UTF-16, UTF-32).
Allocate a malloced memory block for the result.
Return value: the freshly allocated resulting NUL-terminated string if
successful, otherwise NULL and errno set. */
extern char *
str_iconveh (const char *src,
const char *from_codeset, const char *to_codeset,
enum iconv_ilseq_handler handler);
#ifdef __cplusplus
}
#endif
#endif /* _STRICONVEH_H */
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