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glibc/iconvdata/euc-cn.c
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/* Mapping tables for EUC-CN handling. | |
Copyright (C) 1998-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C 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 | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#include <dlfcn.h> | |
#include <gb2312.h> | |
#include <stdint.h> | |
/* Definitions used in the body of the `gconv' function. */ | |
#define CHARSET_NAME "EUC-CN//" | |
#define FROM_LOOP from_euc_cn | |
#define TO_LOOP to_euc_cn | |
#define DEFINE_INIT 1 | |
#define DEFINE_FINI 1 | |
#define MIN_NEEDED_FROM 1 | |
#define MAX_NEEDED_FROM 2 | |
#define MIN_NEEDED_TO 4 | |
#define ONE_DIRECTION 0 | |
/* First define the conversion function from EUC-CN to UCS4. */ | |
#define MIN_NEEDED_INPUT MIN_NEEDED_FROM | |
#define MAX_NEEDED_INPUT MAX_NEEDED_FROM | |
#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO | |
#define LOOPFCT FROM_LOOP | |
#define BODY \ | |
{ \ | |
uint32_t ch = *inptr; \ | |
\ | |
if (ch <= 0x7f) \ | |
++inptr; \ | |
else \ | |
if ((__builtin_expect (ch <= 0xa0, 0) && ch != 0x8e && ch != 0x8f) \ | |
|| __builtin_expect (ch > 0xfe, 0)) \ | |
{ \ | |
/* This is illegal. */ \ | |
STANDARD_FROM_LOOP_ERR_HANDLER (1); \ | |
} \ | |
else \ | |
{ \ | |
/* Two or more byte character. First test whether the \ | |
next byte is also available. */ \ | |
const unsigned char *endp; \ | |
\ | |
if (__glibc_unlikely (inptr + 1 >= inend)) \ | |
{ \ | |
/* The second character is not available. Store \ | |
the intermediate result. */ \ | |
result = __GCONV_INCOMPLETE_INPUT; \ | |
break; \ | |
} \ | |
\ | |
ch = inptr[1]; \ | |
\ | |
/* All second bytes of a multibyte character must be >= 0xa1. */ \ | |
if (__glibc_unlikely (ch < 0xa1)) \ | |
STANDARD_FROM_LOOP_ERR_HANDLER (1); \ | |
\ | |
/* This is code set 1: GB 2312-80. */ \ | |
endp = inptr; \ | |
\ | |
ch = gb2312_to_ucs4 (&endp, 2, 0x80); \ | |
if (__glibc_unlikely (ch == __UNKNOWN_10646_CHAR)) \ | |
{ \ | |
/* This is an illegal character. */ \ | |
STANDARD_FROM_LOOP_ERR_HANDLER (2); \ | |
} \ | |
\ | |
inptr += 2; \ | |
} \ | |
\ | |
put32 (outptr, ch); \ | |
outptr += 4; \ | |
} | |
#define LOOP_NEED_FLAGS | |
#define ONEBYTE_BODY \ | |
{ \ | |
if (c < 0x80) \ | |
return c; \ | |
else \ | |
return WEOF; \ | |
} | |
#include <iconv/loop.c> | |
/* Next, define the other direction. */ | |
#define MIN_NEEDED_INPUT MIN_NEEDED_TO | |
#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM | |
#define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM | |
#define LOOPFCT TO_LOOP | |
#define BODY \ | |
{ \ | |
uint32_t ch = get32 (inptr); \ | |
\ | |
if (ch <= L'\x7f') \ | |
/* It's plain ASCII. */ \ | |
*outptr++ = (unsigned char) ch; \ | |
else \ | |
{ \ | |
size_t found; \ | |
\ | |
found = ucs4_to_gb2312 (ch, outptr, outend - outptr); \ | |
if (__builtin_expect (found, 1) != 0) \ | |
{ \ | |
if (__builtin_expect (found, 0) == __UNKNOWN_10646_CHAR) \ | |
{ \ | |
UNICODE_TAG_HANDLER (ch, 4); \ | |
\ | |
/* Illegal character. */ \ | |
STANDARD_TO_LOOP_ERR_HANDLER (4); \ | |
} \ | |
\ | |
/* It's a GB 2312 character, adjust it for EUC-CN. */ \ | |
*outptr++ += 0x80; \ | |
*outptr++ += 0x80; \ | |
} \ | |
else \ | |
{ \ | |
/* We ran out of space. */ \ | |
result = __GCONV_FULL_OUTPUT; \ | |
break; \ | |
} \ | |
} \ | |
inptr += 4; \ | |
} | |
#define LOOP_NEED_FLAGS | |
#include <iconv/loop.c> | |
/* Now define the toplevel functions. */ | |
#include <iconv/skeleton.c> |