/* Mapping tables for EUC-TW handling. Copyright (C) 1998, 1999, 2000 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 <dlfcn.h> #include <stdint.h> #include <cns11643l1.h> #include <cns11643.h> /* Definitions used in the body of the `gconv' function. */ #define CHARSET_NAME "EUC-TW//" #define FROM_LOOP from_euc_tw #define TO_LOOP to_euc_tw #define DEFINE_INIT 1 #define DEFINE_FINI 1 #define MIN_NEEDED_FROM 1 #define MAX_NEEDED_FROM 4 #define MIN_NEEDED_TO 4 /* First define the conversion function from EUC-TW 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) \ /* Plain ASCII. */ \ ++inptr; \ else if ((ch <= 0xa0 || ch > 0xfe) && ch != 0x8e) \ { \ /* This is illegal. */ \ if (! ignore_errors_p ()) \ { \ result = __GCONV_ILLEGAL_INPUT; \ break; \ } \ \ ++inptr; \ ++*irreversible; \ continue; \ } \ else \ { \ /* Two or more byte character. First test whether the next \ character is also available. */ \ uint32_t ch2; \ \ if (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 || ch2 == 0xff) \ { \ /* This is illegal. */ \ if (! ignore_errors_p ()) \ { \ result = __GCONV_ILLEGAL_INPUT; \ break; \ } \ \ ++inptr; \ ++*irreversible; \ continue; \ } \ \ if (ch == 0x8e) \ { \ /* This is code set 2: CNS 11643, planes 1 to 16. */ \ const char *endp = inptr + 1; \ \ ch = cns11643_to_ucs4 (&endp, inend - inptr - 1, 0x80); \ \ if (ch == 0) \ { \ /* The third or fourth character is not available. Store \ the intermediate result. */ \ result = __GCONV_INCOMPLETE_INPUT; \ break; \ } \ \ if (ch == __UNKNOWN_10646_CHAR) \ { \ /* Illegal input. */ \ if (! ignore_errors_p ()) \ { \ /* This is an illegal character. */ \ result = __GCONV_ILLEGAL_INPUT; \ break; \ } \ \ ++inptr; \ ++*irreversible; \ continue; \ } \ \ inptr += 4; \ } \ else \ { \ /* This is code set 1: CNS 11643, plane 1. */ \ const unsigned char *endp = inptr; \ \ ch = cns11643l1_to_ucs4 (&endp, inend - inptr, 0x80); \ /* Please note that we need not test for the missing input \ characters here anymore. */ \ if (ch == __UNKNOWN_10646_CHAR) \ { \ /* Illegal input. */ \ if (! ignore_errors_p ()) \ { \ /* This is an illegal character. */ \ result = __GCONV_ILLEGAL_INPUT; \ break; \ } \ \ inptr += 2; \ ++*irreversible; \ continue; \ } \ \ inptr += 2; \ } \ } \ \ put32 (outptr, ch); \ outptr += 4; \ } #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 <= 0x7f) \ /* It's plain ASCII. */ \ *outptr++ = ch; \ else \ { \ /* Try the JIS character sets. */ \ size_t found; \ \ found = ucs4_to_cns11643l1 (ch, outptr, outend - outptr); \ if (__builtin_expect (found, 1) == 0) \ { \ /* We ran out of space. */ \ result = __GCONV_INCOMPLETE_INPUT; \ break; \ } \ if (__builtin_expect (found, 1) != __UNKNOWN_10646_CHAR) \ { \ /* It's a CNS 11643, plane 1 character, adjust it for EUC-TW. */ \ *outptr++ += 0x80; \ *outptr++ += 0x80; \ } \ else \ { \ /* No CNS 11643, plane 1 character. */ \ \ found = ucs4_to_cns11643 (ch, outptr + 1, outend - outptr - 1); \ if (__builtin_expect (found, 1) == 0) \ { \ /* We ran out of space. */ \ result = __GCONV_INCOMPLETE_INPUT; \ break; \ } \ if (__builtin_expect (found, 0) == __UNKNOWN_10646_CHAR) \ { \ /* Illegal character. */ \ STANDARD_ERR_HANDLER (4); \ } \ \ /* It's a CNS 11643 character, adjust it for EUC-TW. */ \ *outptr++ = '\x8e'; \ *outptr++ += 0xa0; \ *outptr++ += 0x80; \ *outptr++ += 0x80; \ } \ } \ \ inptr += 4; \ } #define LOOP_NEED_FLAGS #include <iconv/loop.c> /* Now define the toplevel functions. */ #include <iconv/skeleton.c>