diff options
Diffstat (limited to 'REORG.TODO/iconvdata/euc-tw.c')
| -rw-r--r-- | REORG.TODO/iconvdata/euc-tw.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/REORG.TODO/iconvdata/euc-tw.c b/REORG.TODO/iconvdata/euc-tw.c new file mode 100644 index 0000000000..fd388c72c0 --- /dev/null +++ b/REORG.TODO/iconvdata/euc-tw.c @@ -0,0 +1,189 @@ +/* Mapping tables for EUC-TW handling. + Copyright (C) 1998-2017 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 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, see + <http://www.gnu.org/licenses/>. */ + +#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 +#define ONE_DIRECTION 0 + + +/* 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. */ \ + STANDARD_FROM_LOOP_ERR_HANDLER (1); \ + } \ + else \ + { \ + /* Two or more byte character. First test whether the next byte \ + is also available. */ \ + uint32_t ch2; \ + \ + if (inptr + 1 >= inend) \ + { \ + /* The second byte 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) \ + STANDARD_FROM_LOOP_ERR_HANDLER (1); \ + \ + if (ch == 0x8e) \ + { \ + /* This is code set 2: CNS 11643, planes 1 to 16. */ \ + const unsigned char *endp = inptr + 1; \ + \ + ch = cns11643_to_ucs4 (&endp, inend - inptr - 1, 0x80); \ + \ + if (ch == 0) \ + { \ + /* The third or fourth byte is not available. Store \ + the intermediate result. */ \ + result = __GCONV_INCOMPLETE_INPUT; \ + break; \ + } \ + \ + if (ch == __UNKNOWN_10646_CHAR) \ + /* Illegal input. */ \ + STANDARD_FROM_LOOP_ERR_HANDLER (1); \ + \ + 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. */ \ + STANDARD_FROM_LOOP_ERR_HANDLER (2); \ + \ + inptr += 2; \ + } \ + } \ + \ + put32 (outptr, ch); \ + outptr += 4; \ + } +#define LOOP_NEED_FLAGS +#define ONEBYTE_BODY \ + { \ + if (c < 0x80) \ + 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); \ + \ + if (ch <= 0x7f) \ + /* It's plain ASCII. */ \ + *outptr++ = ch; \ + else \ + { \ + /* Try the CNS 11643 planes. */ \ + size_t found; \ + \ + found = ucs4_to_cns11643l1 (ch, outptr, outend - outptr); \ + if (__builtin_expect (found, 1) == 0) \ + { \ + /* We ran out of space. */ \ + result = __GCONV_FULL_OUTPUT; \ + 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_FULL_OUTPUT; \ + break; \ + } \ + if (__builtin_expect (found, 0) == __UNKNOWN_10646_CHAR) \ + { \ + UNICODE_TAG_HANDLER (ch, 4); \ + \ + /* Illegal character. */ \ + STANDARD_TO_LOOP_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> |