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/* Mapping tables for EUC-JP handling.
Copyright (C) 1998-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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
<https://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>
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