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/* Character set conversion with error handling and autodetection.
Copyright (C) 2002, 2005, 2007-2020 Free Software Foundation, Inc.
Written by Bruno Haible.
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 3 of the License, 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, see <https://www.gnu.org/licenses/>. */
#ifndef _STRICONVEHA_H
#define _STRICONVEHA_H
#include <stdbool.h>
#include <stddef.h>
#include "iconveh.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Convert an entire string from one encoding to another, using iconv.
The original string is at [SRC,...,SRC+SRCLEN-1].
The "from" encoding can also be a name defined for autodetection.
If TRANSLITERATE is true, transliteration will attempted to avoid conversion
errors, for iconv implementations that support this. Usually you'll choose
TRANSLITERATE = true if HANDLER != iconveh_error.
If OFFSETS is not NULL, it should point to an array of SRCLEN integers; this
array is filled with offsets into the result, i.e. the character starting
at SRC[i] corresponds to the character starting at (*RESULTP)[OFFSETS[i]],
and other offsets are set to (size_t)(-1).
*RESULTP and *LENGTH should initially be a scratch buffer and its size,
or *RESULTP can initially be NULL.
May erase the contents of the memory at *RESULTP.
Return value: 0 if successful, otherwise -1 and errno set.
If successful: The resulting string is stored in *RESULTP and its length
in *LENGTHP. *RESULTP is set to a freshly allocated memory block, or is
unchanged if no dynamic memory allocation was necessary. */
extern int
mem_iconveha (const char *src, size_t srclen,
const char *from_codeset, const char *to_codeset,
bool transliterate,
enum iconv_ilseq_handler handler,
size_t *offsets,
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.
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).
The "from" encoding can also be a name defined for autodetection.
If TRANSLITERATE is true, transliteration will attempted to avoid conversion
errors, for iconv implementations that support this. Usually you'll choose
TRANSLITERATE = true if HANDLER != iconveh_error.
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_iconveha (const char *src,
const char *from_codeset, const char *to_codeset,
bool transliterate,
enum iconv_ilseq_handler handler);
/* In the above, FROM_CODESET can also be one of the following values:
"autodetect_utf8" supports ISO-8859-1 and UTF-8
"autodetect_jp" supports EUC-JP, ISO-2022-JP-2 and SHIFT_JIS
"autodetect_kr" supports EUC-KR and ISO-2022-KR
More names can be defined for autodetection. */
/* Registers an encoding name for autodetection.
TRY_IN_ORDER is a NULL terminated list of encodings to be tried.
Returns 0 upon success, or -1 (with errno set) in case of error.
Particular errno values: ENOMEM. */
extern int
uniconv_register_autodetect (const char *name,
const char * const *try_in_order);
#ifdef __cplusplus
}
#endif
#endif /* _STRICONVEHA_H */
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