217 lines
7.1 KiB
C
217 lines
7.1 KiB
C
/* Mapping tables for EUC-JP 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 <stdint.h>
|
|
#include <gconv.h>
|
|
#include <jis0201.h>
|
|
#include <jis0208.h>
|
|
#include <jis0212.h>
|
|
|
|
/* Definitions used in the body of the `gconv' function. */
|
|
#define CHARSET_NAME "EUC-JP//"
|
|
#define FROM_LOOP from_euc_jp
|
|
#define TO_LOOP to_euc_jp
|
|
#define DEFINE_INIT 1
|
|
#define DEFINE_FINI 1
|
|
#define MIN_NEEDED_FROM 1
|
|
#define MAX_NEEDED_FROM 3
|
|
#define MIN_NEEDED_TO 4
|
|
#define ONE_DIRECTION 0
|
|
|
|
|
|
/* First define the conversion function from EUC-JP 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 < 0x8e || (ch >= 0x90 && ch <= 0x9f)) \
|
|
++inptr; \
|
|
else if (ch == 0xff) \
|
|
{ \
|
|
/* This is illegal. */ \
|
|
STANDARD_FROM_LOOP_ERR_HANDLER (1); \
|
|
} \
|
|
else \
|
|
{ \
|
|
/* Two or more byte character. First test whether the next \
|
|
byte is also available. */ \
|
|
int ch2; \
|
|
\
|
|
if (__glibc_unlikely (inptr + 1 >= inend)) \
|
|
{ \
|
|
/* The second byte is not available. Store the \
|
|
intermediate result. */ \
|
|
result = __GCONV_INCOMPLETE_INPUT; \
|
|
break; \
|
|
} \
|
|
\
|
|
ch2 = inptr[1]; \
|
|
\
|
|
/* All second bytes of a multibyte character must be >= 0xa1. */ \
|
|
if (__glibc_unlikely (ch2 < 0xa1)) \
|
|
STANDARD_FROM_LOOP_ERR_HANDLER (1); \
|
|
\
|
|
if (ch == 0x8e) \
|
|
{ \
|
|
/* This is code set 2: half-width katakana. */ \
|
|
ch = jisx0201_to_ucs4 (ch2); \
|
|
if (__builtin_expect (ch, 0) == __UNKNOWN_10646_CHAR) \
|
|
STANDARD_FROM_LOOP_ERR_HANDLER (1); \
|
|
\
|
|
inptr += 2; \
|
|
} \
|
|
else \
|
|
{ \
|
|
const unsigned char *endp; \
|
|
\
|
|
if (ch == 0x8f) \
|
|
{ \
|
|
/* This is code set 3: JIS X 0212-1990. */ \
|
|
endp = inptr + 1; \
|
|
\
|
|
ch = jisx0212_to_ucs4 (&endp, inend - endp, 0x80); \
|
|
} \
|
|
else \
|
|
{ \
|
|
/* This is code set 1: JIS X 0208. */ \
|
|
endp = inptr; \
|
|
\
|
|
ch = jisx0208_to_ucs4 (&endp, inend - inptr, 0x80); \
|
|
} \
|
|
\
|
|
if (__builtin_expect (ch, 1) == 0) \
|
|
{ \
|
|
/* Not enough input available. */ \
|
|
result = __GCONV_INCOMPLETE_INPUT; \
|
|
break; \
|
|
} \
|
|
if (__glibc_unlikely (ch == __UNKNOWN_10646_CHAR)) \
|
|
/* Illegal character. */ \
|
|
STANDARD_FROM_LOOP_ERR_HANDLER (1); \
|
|
\
|
|
inptr = endp; \
|
|
} \
|
|
} \
|
|
\
|
|
put32 (outptr, ch); \
|
|
outptr += 4; \
|
|
}
|
|
#define ONEBYTE_BODY \
|
|
{ \
|
|
if (c < 0x8e || (c >= 0x90 && c <= 0x9f)) \
|
|
return c; \
|
|
else \
|
|
return WEOF; \
|
|
}
|
|
#define LOOP_NEED_FLAGS
|
|
#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 < 0x8e || (ch >= 0x90 && ch <= 0x9f)) \
|
|
/* It's plain ASCII or C1. */ \
|
|
*outptr++ = ch; \
|
|
else if (ch == 0xa5) \
|
|
/* YEN sign => backslash */ \
|
|
*outptr++ = 0x5c; \
|
|
else if (ch == 0x203e) \
|
|
/* overscore => asciitilde */ \
|
|
*outptr++ = 0x7e; \
|
|
else \
|
|
{ \
|
|
/* Try the JIS character sets. */ \
|
|
size_t found; \
|
|
\
|
|
/* See whether we have room for at least two characters. */ \
|
|
if (__glibc_unlikely (outptr + 1 >= outend)) \
|
|
{ \
|
|
result = __GCONV_FULL_OUTPUT; \
|
|
break; \
|
|
} \
|
|
\
|
|
found = ucs4_to_jisx0201 (ch, outptr + 1); \
|
|
if (found != __UNKNOWN_10646_CHAR) \
|
|
{ \
|
|
/* Yes, it's a JIS 0201 character. Store the shift byte. */ \
|
|
*outptr = 0x8e; \
|
|
outptr += 2; \
|
|
} \
|
|
else \
|
|
{ \
|
|
/* No JIS 0201 character. */ \
|
|
found = ucs4_to_jisx0208 (ch, outptr, 2); \
|
|
/* Please note that we always have enough room for the output. */ \
|
|
if (found != __UNKNOWN_10646_CHAR) \
|
|
{ \
|
|
/* It's a JIS 0208 character, adjust it for EUC-JP. */ \
|
|
*outptr++ += 0x80; \
|
|
*outptr++ += 0x80; \
|
|
} \
|
|
else \
|
|
{ \
|
|
/* No JIS 0208 character. */ \
|
|
found = ucs4_to_jisx0212 (ch, outptr + 1, \
|
|
outend - outptr - 1); \
|
|
\
|
|
if (__builtin_expect (found, 1) == 0) \
|
|
{ \
|
|
/* We ran out of space. */ \
|
|
result = __GCONV_FULL_OUTPUT; \
|
|
break; \
|
|
} \
|
|
else if (__builtin_expect (found, 0) != __UNKNOWN_10646_CHAR) \
|
|
{ \
|
|
/* It's a JIS 0212 character, adjust it for EUC-JP. */ \
|
|
*outptr++ = 0x8f; \
|
|
*outptr++ += 0x80; \
|
|
*outptr++ += 0x80; \
|
|
} \
|
|
else \
|
|
{ \
|
|
UNICODE_TAG_HANDLER (ch, 4); \
|
|
\
|
|
/* Illegal character. */ \
|
|
STANDARD_TO_LOOP_ERR_HANDLER (4); \
|
|
} \
|
|
} \
|
|
} \
|
|
} \
|
|
\
|
|
inptr += 4; \
|
|
}
|
|
#define LOOP_NEED_FLAGS
|
|
#include <iconv/loop.c>
|
|
|
|
|
|
/* Now define the toplevel functions. */
|
|
#include <iconv/skeleton.c>
|