155 lines
4.8 KiB
C
155 lines
4.8 KiB
C
/* Mapping tables for EUC-KR handling.
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Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jungshik Shin <jshin@pantheon.yale.edu>
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and Ulrich Drepper <drepper@cygnus.com>, 1998.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <stdint.h>
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#include <ksc5601.h>
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static inline void
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euckr_from_ucs4 (uint32_t ch, unsigned char *cp)
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{
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if (ch > 0x7f)
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{
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if (ucs4_to_ksc5601 (ch, cp, 2) != __UNKNOWN_10646_CHAR)
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{
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cp[0] |= 0x80;
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cp[1] |= 0x80;
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}
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else
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cp[0] = '\0';
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}
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/* XXX Think about 0x5c ; '\'. */
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else
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{
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cp[0] = (unsigned char) ch;
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cp[1] = '\0';
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}
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}
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/* Definitions used in the body of the `gconv' function. */
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#define CHARSET_NAME "EUC-KR//"
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#define FROM_LOOP from_euc_kr
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#define TO_LOOP to_euc_kr
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#define DEFINE_INIT 1
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#define DEFINE_FINI 1
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#define MIN_NEEDED_FROM 1
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#define MAX_NEEDED_FROM 2
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#define MIN_NEEDED_TO 4
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/* First define the conversion function from EUC-KR to UCS4. */
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#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
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#define MAX_NEEDED_INPUT MAX_NEEDED_FROM
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#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
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#define LOOPFCT FROM_LOOP
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#define BODY \
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{ \
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uint32_t ch = *inptr; \
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\
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/* Half-width Korean Currency WON sign \
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\
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if (inchar == 0x5c) \
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ch = 0x20a9; \
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else if (inchar <= 0x7f) \
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ch = (uint32_t) inchar; \
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*/ \
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\
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if (ch <= 0x7f) \
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/* Plain ASCII. */ \
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++inptr; \
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/* 0xfe(->0x7e : row 94) and 0xc9(->0x59 : row 41) are \
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user-defined areas. */ \
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else if (ch <= 0xa0 || ch > 0xfe || ch == 0xc9) \
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{ \
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/* This is illegal. */ \
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result = __GCONV_ILLEGAL_INPUT; \
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break; \
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} \
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else \
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{ \
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/* Two-byte character. First test whether the next character \
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is also available. */ \
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ch = ksc5601_to_ucs4 (&inptr, \
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NEED_LENGTH_TEST ? inptr - inend : 2, 0x80); \
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if (NEED_LENGTH_TEST && ch == 0) \
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{ \
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/* The second character is not available. */ \
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result = __GCONV_INCOMPLETE_INPUT; \
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break; \
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} \
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if (ch == __UNKNOWN_10646_CHAR) \
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{ \
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/* This is an illegal character. */ \
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result = __GCONV_ILLEGAL_INPUT; \
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break; \
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} \
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} \
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\
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put32 (outptr, ch); \
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outptr += 4; \
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}
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#include <iconv/loop.c>
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/* Next, define the other direction. */
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#define MIN_NEEDED_INPUT MIN_NEEDED_TO
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#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
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#define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM
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#define LOOPFCT TO_LOOP
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#define BODY \
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{ \
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uint32_t ch = get32 (inptr); \
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unsigned char cp[2]; \
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\
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/* Decomposing Hangul syllables not available in KS C 5601 into \
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Jamos should be considered either here or in euckr_from_ucs4() */ \
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euckr_from_ucs4 (ch, cp) ; \
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\
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if (cp[0] == '\0' && ch != 0) \
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{ \
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/* Illegal character. */ \
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result = __GCONV_ILLEGAL_INPUT; \
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break; \
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} \
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\
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*outptr++ = cp[0]; \
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/* Now test for a possible second byte and write this if possible. */ \
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if (cp[1] != '\0') \
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{ \
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if (NEED_LENGTH_TEST && outptr >= outend) \
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{ \
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/* The result does not fit into the buffer. */ \
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--outptr; \
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result = __GCONV_FULL_OUTPUT; \
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break; \
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} \
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*outptr++ = cp[1]; \
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} \
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\
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inptr += 4; \
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}
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#include <iconv/loop.c>
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/* Now define the toplevel functions. */
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#include <iconv/skeleton.c>
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