mirror of
https://github.com/xiaoyifang/goldendict-ng.git
synced 2024-11-30 21:34:07 +00:00
249 lines
9.7 KiB
C
249 lines
9.7 KiB
C
/* Copyright (C) 1999-2003, 2005-2006, 2008-2011 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 0x010E /* version number: (major<<8) + minor */
|
||
|
||
#if 0 && BUILDING_LIBICONV
|
||
#define LIBICONV_DLL_EXPORTED __attribute__((__visibility__("default")))
|
||
#else
|
||
#define LIBICONV_DLL_EXPORTED
|
||
#endif
|
||
extern LIBICONV_DLL_EXPORTED __declspec (dllimport) int _libiconv_version; /* Likewise */
|
||
|
||
/* We would like to #include any system header file which could define
|
||
iconv_t, 1. in order to eliminate the risk that the user gets compilation
|
||
errors because some other system header file includes /usr/include/iconv.h
|
||
which defines iconv_t or declares iconv after this file, 2. when compiling
|
||
for LIBICONV_PLUG, we need the proper iconv_t type in order to produce
|
||
binary compatible code.
|
||
But gcc's #include_next is not portable. Thus, once libiconv's iconv.h
|
||
has been installed in /usr/local/include, there is no way any more to
|
||
include the original /usr/include/iconv.h. We simply have to get away
|
||
without it.
|
||
Ad 1. The risk that a system header file does
|
||
#include "iconv.h" or #include_next "iconv.h"
|
||
is small. They all do #include <iconv.h>.
|
||
Ad 2. The iconv_t type is a pointer type in all cases I have seen. (It
|
||
has to be a scalar type because (iconv_t)(-1) is a possible return value
|
||
from iconv_open().) */
|
||
|
||
/* 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 LIBICONV_DLL_EXPORTED 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 LIBICONV_DLL_EXPORTED 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 LIBICONV_DLL_EXPORTED int iconv_close (iconv_t cd);
|
||
|
||
|
||
#ifdef __cplusplus
|
||
}
|
||
#endif
|
||
|
||
|
||
#ifndef LIBICONV_PLUG
|
||
|
||
/* Nonstandard extensions. */
|
||
|
||
#if 1
|
||
#if 0
|
||
/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
|
||
<wchar.h>.
|
||
BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
|
||
included before <wchar.h>. */
|
||
#include <stddef.h>
|
||
#include <stdio.h>
|
||
#include <time.h>
|
||
#endif
|
||
#include <wchar.h>
|
||
#endif
|
||
|
||
#ifdef __cplusplus
|
||
extern "C" {
|
||
#endif
|
||
|
||
/* A type that holds all memory needed by a conversion descriptor.
|
||
A pointer to such an object can be used as an iconv_t. */
|
||
typedef struct {
|
||
void* dummy1[28];
|
||
#if 1
|
||
mbstate_t dummy2;
|
||
#endif
|
||
} iconv_allocation_t;
|
||
|
||
/* Allocates descriptor for code conversion from encoding ‘fromcode’ to
|
||
encoding ‘tocode’ into preallocated memory. Returns an error indicator
|
||
(0 or -1 with errno set). */
|
||
#define iconv_open_into libiconv_open_into
|
||
extern LIBICONV_DLL_EXPORTED int iconv_open_into (const char* tocode, const char* fromcode,
|
||
iconv_allocation_t* resultp);
|
||
|
||
/* Control of attributes. */
|
||
#define iconvctl libiconvctl
|
||
extern LIBICONV_DLL_EXPORTED 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 1
|
||
/* 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 LIBICONV_DLL_EXPORTED 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 LIBICONV_DLL_EXPORTED const char * iconv_canonicalize (const char * name);
|
||
|
||
/* Support for relocatable packages. */
|
||
|
||
/* Sets the original and the current installation prefix of the package.
|
||
Relocation simply replaces a pathname starting with the original prefix
|
||
by the corresponding pathname with the current prefix instead. Both
|
||
prefixes should be directory names without trailing slash (i.e. use ""
|
||
instead of "/"). */
|
||
extern LIBICONV_DLL_EXPORTED void libiconv_set_relocation_prefix (const char *orig_prefix,
|
||
const char *curr_prefix);
|
||
|
||
#ifdef __cplusplus
|
||
}
|
||
#endif
|
||
|
||
#endif
|
||
|
||
|
||
#endif /* _LIBICONV_H */
|