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/* Mapping tables for EUC-KR handling.
Copyright (C) 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jungshik Shin <jshin@pantheon.yale.edu>
and 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 <ksc5601.h>
static inline void
euckr_from_ucs4 (uint32_t ch, unsigned char *cp)
{
if (ch > 0x7f)
{
uint16_t idx = 0;
if (ucs4_to_ksc5601 (ch, &idx))
idx |= 0x8080;
cp[0] = (unsigned char) (idx / 256);
cp[1] = (unsigned char) (idx & 0xff);
}
/* XXX Think about 0x5c ; '\'. */
else
{
cp[0] = (unsigned char) ch;
cp[1] = '\0';
}
}
/* Definitions used in the body of the `gconv' function. */
#define CHARSET_NAME "EUC-KR"
#define FROM_LOOP from_euc_kr
#define TO_LOOP to_euc_kr
#define DEFINE_INIT 1
#define DEFINE_FINI 1
#define MIN_NEEDED_FROM 1
#define MAX_NEEDED_FROM 2
#define MIN_NEEDED_TO 4
/* First define the conversion function from EUC-KR 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; \
\
/* Half-width Korean Currency WON sign \
\
if (inchar == 0x5c) \
ch = 0x20a9; \
else if (inchar <= 0x7f) \
ch = (wchar_t) inchar; \
*/ \
\
if (ch <= 0x7f) \
/* Plain ASCII. */ \
++inptr; \
/* 0xfe(->0x7e : row 94) and 0xc9(->0x59 : row 41) are \
user-defined areas. */ \
else if (ch <= 0xa0 || ch > 0xfe || ch == 0xc9) \
{ \
/* This is illegal. */ \
result = GCONV_ILLEGAL_INPUT; \
break; \
} \
else \
{ \
/* Two-byte character. First test whether the next character \
is also available. */ \
int ch2; \
\
if (NEED_LENGTH_TEST && inptr + 1 >= inend) \
{ \
/* The second character is not available. */ \
result = GCONV_INCOMPLETE_INPUT; \
break; \
} \
\
ch2 = inptr[1]; \
\
if (ch2 < 0xa1 || ch2 >= 0xfe \
|| ((ch = ksc5601_to_ucs4 ((uint16_t) (ch * 256 + ch2) & 0x7f7f)) \
== UNKNOWN_10646_CHAR)) \
{ \
/* This is an illegal character. */ \
result = GCONV_ILLEGAL_INPUT; \
break; \
} \
\
inptr += 2; \
} \
\
*((uint32_t *) outptr)++ = ch; \
}
#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 = *((uint32_t *) inptr); \
unsigned char cp[2]; \
\
/* Decomposing Hangul syllables not available in KS C 5601 into \
Jamos should be considered either here or in euckr_from_ucs4() */ \
euckr_from_ucs4 (ch, cp) ; \
\
if (cp[0] == '\0' && ch != 0) \
{ \
/* Illegal character. */ \
result = GCONV_ILLEGAL_INPUT; \
break; \
} \
\
*outptr++ = cp[0]; \
/* Now test for a possible second byte and write this if possible. */ \
if (cp[1] != '\0') \
{ \
if (NEED_LENGTH_TEST && outptr >= outend) \
{ \
/* The result does not fit into the buffer. */ \
--outptr; \
result = GCONV_FULL_OUTPUT; \
break; \
} \
*outptr++ = cp[1]; \
} \
\
inptr += 4; \
}
#include <iconv/loop.c>
/* Now define the toplevel functions. */
#include <iconv/skeleton.c>
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