haiku/headers/libs/iconv/iconv.h

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/* Copyright (C) 1999-2003, 2005-2006 Free Software Foundation, Inc.
This file is part of the GNU LIBICONV Library.
The GNU LIBICONV Library is free software; you can redistribute it
and/or modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
The GNU LIBICONV Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU LIBICONV Library; see the file COPYING.LIB.
If not, write to the Free Software Foundation, Inc., 51 Franklin Street,
Fifth Floor, Boston, MA 02110-1301, USA. */
/* When installed, this file is called "iconv.h". */
#ifndef _LIBICONV_H
#define _LIBICONV_H
#define _LIBICONV_VERSION 0x010B /* version number: (major<<8) + minor */
extern int _libiconv_version; /* Likewise */
/* Define iconv_t ourselves. */
#undef iconv_t
#define iconv_t libiconv_t
typedef void* iconv_t;
/* Get size_t declaration.
Get wchar_t declaration if it exists. */
#include <stddef.h>
/* Get errno declaration and values. */
#include <errno.h>
/* Some systems, like SunOS 4, don't have EILSEQ. Some systems, like BSD/OS,
have EILSEQ in a different header. On these systems, define EILSEQ
ourselves. */
#ifndef EILSEQ
#define EILSEQ
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* Allocates descriptor for code conversion from encoding `fromcode' to
encoding `tocode'. */
#ifndef LIBICONV_PLUG
#define iconv_open libiconv_open
#endif
extern iconv_t iconv_open(const char* tocode, const char* fromcode);
/* Converts, using conversion descriptor `cd', at most `*inbytesleft' bytes
starting at `*inbuf', writing at most `*outbytesleft' bytes starting at
`*outbuf'.
Decrements `*inbytesleft' and increments `*inbuf' by the same amount.
Decrements `*outbytesleft' and increments `*outbuf' by the same amount. */
#ifndef LIBICONV_PLUG
#define iconv libiconv
#endif
extern size_t iconv(iconv_t cd, char* * inbuf, size_t *inbytesleft,
char* * outbuf, size_t *outbytesleft);
/* Frees resources allocated for conversion descriptor `cd'. */
#ifndef LIBICONV_PLUG
#define iconv_close libiconv_close
#endif
extern int iconv_close(iconv_t cd);
#ifndef LIBICONV_PLUG
/* Nonstandard extensions. */
/* Control of attributes. */
#define iconvctl libiconvctl
extern int iconvctl(iconv_t cd, int request, void* argument);
/* Hook performed after every successful conversion of a Unicode character. */
typedef void (*iconv_unicode_char_hook) (unsigned int uc, void* data);
/* Hook performed after every successful conversion of a wide character. */
typedef void (*iconv_wide_char_hook) (wchar_t wc, void* data);
/* Set of hooks. */
struct iconv_hooks {
iconv_unicode_char_hook uc_hook;
iconv_wide_char_hook wc_hook;
void* data;
};
/* Fallback function. Invoked when a small number of bytes could not be
converted to a Unicode character. This function should process all
bytes from inbuf and may produce replacement Unicode characters by calling
the write_replacement callback repeatedly. */
typedef void (*iconv_unicode_mb_to_uc_fallback)
(const char* inbuf, size_t inbufsize,
void (*write_replacement) (const unsigned int *buf, size_t buflen,
void* callback_arg),
void* callback_arg,
void* data);
/* Fallback function. Invoked when a Unicode character could not be converted
to the target encoding. This function should process the character and
may produce replacement bytes (in the target encoding) by calling the
write_replacement callback repeatedly. */
typedef void (*iconv_unicode_uc_to_mb_fallback)
(unsigned int code,
void (*write_replacement) (const char *buf, size_t buflen,
void* callback_arg),
void* callback_arg,
void* data);
#if HAVE_WCHAR_T
/* Fallback function. Invoked when a number of bytes could not be converted to
a wide character. This function should process all bytes from inbuf and may
produce replacement wide characters by calling the write_replacement
callback repeatedly. */
typedef void (*iconv_wchar_mb_to_wc_fallback)
(const char* inbuf, size_t inbufsize,
void (*write_replacement) (const wchar_t *buf, size_t buflen,
void* callback_arg),
void* callback_arg,
void* data);
/* Fallback function. Invoked when a wide character could not be converted to
the target encoding. This function should process the character and may
produce replacement bytes (in the target encoding) by calling the
write_replacement callback repeatedly. */
typedef void (*iconv_wchar_wc_to_mb_fallback)
(wchar_t code,
void (*write_replacement) (const char *buf, size_t buflen,
void* callback_arg),
void* callback_arg,
void* data);
#else
/* If the wchar_t type does not exist, these two fallback functions are never
invoked. Their argument list therefore does not matter. */
typedef void (*iconv_wchar_mb_to_wc_fallback) ();
typedef void (*iconv_wchar_wc_to_mb_fallback) ();
#endif
/* Set of fallbacks. */
struct iconv_fallbacks {
iconv_unicode_mb_to_uc_fallback mb_to_uc_fallback;
iconv_unicode_uc_to_mb_fallback uc_to_mb_fallback;
iconv_wchar_mb_to_wc_fallback mb_to_wc_fallback;
iconv_wchar_wc_to_mb_fallback wc_to_mb_fallback;
void* data;
};
/* Requests for iconvctl. */
#define ICONV_TRIVIALP 0 /* int *argument */
#define ICONV_GET_TRANSLITERATE 1 /* int *argument */
#define ICONV_SET_TRANSLITERATE 2 /* const int *argument */
#define ICONV_GET_DISCARD_ILSEQ 3 /* int *argument */
#define ICONV_SET_DISCARD_ILSEQ 4 /* const int *argument */
#define ICONV_SET_HOOKS 5 /* const struct iconv_hooks *argument */
#define ICONV_SET_FALLBACKS 6 /* const struct iconv_fallbacks *argument */
/* Listing of locale independent encodings. */
#define iconvlist libiconvlist
extern void iconvlist(int (*do_one)(unsigned int namescount,
const char * const * names,
void* data),
void* data);
/* Canonicalize an encoding name.
The result is either a canonical encoding name, or name itself. */
extern const char * iconv_canonicalize(const char * name);
#endif
#ifdef __cplusplus
}
#endif
#endif /* _LIBICONV_H */