/* Mapping tables for EUC-KR handling. Copyright (C) 1998, 1999, 2000-2002, 2003 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 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include <dlfcn.h> #include <stdint.h> #include <ksc5601.h> static inline void __attribute ((always_inline)) euckr_from_ucs4 (uint32_t ch, unsigned char *cp) { if (ch > 0x9f) { if (__builtin_expect (ch, 0) == 0x20a9) { /* Half-width Korean Currency WON sign. There is no equivalent in EUC-KR. Some mappings use \x5c because this is what some old Korean ASCII variants used but this is causing problems. We map it to the FULL WIDTH WON SIGN. */ cp[0] = '\xa3'; cp[1] = '\xdc'; } else if (__builtin_expect (ucs4_to_ksc5601 (ch, cp, 2), 0) != __UNKNOWN_10646_CHAR) { cp[0] |= 0x80; cp[1] |= 0x80; } else cp[0] = '\0'; } else { /* There is no mapping for U005c but we nevertheless map it to \x5c. */ 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; \ \ if (ch <= 0x9f) \ ++inptr; \ /* 0xfe(->0x7e : row 94) and 0xc9(->0x59 : row 41) are \ user-defined areas. */ \ else if (__builtin_expect (ch == 0xa0, 0) \ || __builtin_expect (ch > 0xfe, 0) \ || __builtin_expect (ch == 0xc9, 0)) \ { \ /* This is illegal. */ \ STANDARD_FROM_LOOP_ERR_HANDLER (1); \ } \ else \ { \ /* Two-byte character. First test whether the next byte \ is also available. */ \ ch = ksc5601_to_ucs4 (&inptr, inend - inptr, 0x80); \ if (__builtin_expect (ch == 0, 0)) \ { \ /* The second byte is not available. */ \ result = __GCONV_INCOMPLETE_INPUT; \ break; \ } \ if (__builtin_expect (ch == __UNKNOWN_10646_CHAR, 0)) \ /* This is an illegal character. */ \ STANDARD_FROM_LOOP_ERR_HANDLER (2); \ } \ \ put32 (outptr, ch); \ outptr += 4; \ } #define LOOP_NEED_FLAGS #define ONEBYTE_BODY \ { \ if (c <= 0x9f) \ return c; \ else \ return WEOF; \ } #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); \ 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 (__builtin_expect (cp[0], '\1') == '\0' && ch != 0) \ { \ UNICODE_TAG_HANDLER (ch, 4); \ \ /* Illegal character. */ \ STANDARD_TO_LOOP_ERR_HANDLER (4); \ } \ \ *outptr++ = cp[0]; \ /* Now test for a possible second byte and write this if possible. */ \ if (cp[1] != '\0') \ { \ if (__builtin_expect (outptr >= outend, 0)) \ { \ /* The result does not fit into the buffer. */ \ --outptr; \ result = __GCONV_FULL_OUTPUT; \ break; \ } \ *outptr++ = cp[1]; \ } \ \ inptr += 4; \ } #define LOOP_NEED_FLAGS #include <iconv/loop.c> /* Now define the toplevel functions. */ #include <iconv/skeleton.c>