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/* Mapping tables for EUC-JP handling.
Copyright (C) 1998, 1999, 2000 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 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 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#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
/* 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 <= 0x7f) \
++inptr; \
else if ((__builtin_expect (ch, 0xa1) <= 0xa0 && ch != 0x8e && ch != 0x8f)\
|| __builtin_expect (ch, 0xfe) > 0xfe) \
{ \
/* This is illegal. */ \
if (! ignore_errors_p ()) \
{ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
\
++inptr; \
++*irreversible; \
continue; \
} \
else \
{ \
/* Two or more byte character. First test whether the next \
character is also available. */ \
int ch2; \
\
if (NEED_LENGTH_TEST && __builtin_expect (inptr + 1 >= inend, 0)) \
{ \
/* The second character 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 (__builtin_expect (ch2, 0xa1) < 0xa1) \
{ \
/* This is an illegal character. */ \
if (! ignore_errors_p ()) \
{ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
\
++inptr; \
++*irreversible; \
continue; \
} \
\
if (ch == 0x8e) \
{ \
/* This is code set 2: half-width katakana. */ \
ch = jisx0201_to_ucs4 (ch2); \
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, \
NEED_LENGTH_TEST ? inend - endp : 2, \
0x80); \
} \
else \
{ \
/* This is code set 1: JIS X 0208. */ \
endp = inptr; \
\
ch = jisx0208_to_ucs4 (&endp, \
NEED_LENGTH_TEST ? inend - inptr : 2, \
0x80); \
} \
\
if (NEED_LENGTH_TEST && __builtin_expect (ch, 1) == 0) \
{ \
/* Not enough input available. */ \
result = __GCONV_INCOMPLETE_INPUT; \
break; \
} \
if (__builtin_expect (ch, 0) == __UNKNOWN_10646_CHAR) \
{ \
/* Illegal character. */ \
if (! ignore_errors_p ()) \
{ \
/* This is an illegal character. */ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
\
inptr += 2; \
++*irreversible; \
continue; \
} \
inptr = endp; \
} \
} \
\
put32 (outptr, ch); \
outptr += 4; \
}
#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 <= 0x7f) \
/* It's plain ASCII. */ \
*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 (NEED_LENGTH_TEST && __builtin_expect (outptr + 1 >= outend, 0)) \
{ \
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, \
(NEED_LENGTH_TEST \
? outend - outptr - 1 : 2)); \
\
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 \
{ \
/* Illegal character. */ \
if (! ignore_errors_p ()) \
{ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
\
inptr += 4; \
++*irreversible; \
continue; \
} \
} \
} \
} \
\
inptr += 4; \
}
#include <iconv/loop.c>
/* Now define the toplevel functions. */
#include <iconv/skeleton.c>
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