/* Mapping tables for EUC-JP handling. Copyright (C) 1998 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 ((ch <= 0xa0 || ch > 0xfe) && ch != 0x8e && ch != 0x8f) \ { \ /* This is illegal. */ \ result = GCONV_ILLEGAL_INPUT; \ break; \ } \ else \ { \ /* Two or more 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. Store the \ intermediate result. */ \ result = GCONV_INCOMPLETE_INPUT; \ break; \ } \ \ ch2 = inptr[1]; \ \ /* All second bytes of a multibyte character must be >= 0xa1. */ \ if (ch2 < 0xa1) \ { \ /* This is an illegal character. */ \ result = GCONV_ILLEGAL_INPUT; \ break; \ } \ \ 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 && ch == 0) \ { \ /* Not enough input available. */ \ result = GCONV_INCOMPLETE_INPUT; \ break; \ } \ if (ch == UNKNOWN_10646_CHAR) \ { \ /* Illegal character. */ \ result = GCONV_ILLEGAL_INPUT; \ break; \ } \ inptr = endp; \ } \ } \ \ *((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); \ \ 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 && 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, \ (NEED_LENGTH_TEST \ ? outend - outptr - 1 : 2)); \ \ if (found == 0) \ { \ /* We ran out of space. */ \ result = GCONV_FULL_OUTPUT; \ break; \ } \ else if (found != UNKNOWN_10646_CHAR) \ { \ /* It's a JIS 0212 character, adjust it for EUC-JP. */ \ *outptr++ = 0x8f; \ *outptr++ += 0x80; \ *outptr++ += 0x80; \ } \ else \ { \ /* Illegal character. */ \ result = GCONV_ILLEGAL_INPUT; \ break; \ } \ } \ } \ } \ \ inptr += 4; \ } #include <iconv/loop.c> /* Now define the toplevel functions. */ #include <iconv/skeleton.c>