| /* Mapping tables for EUC-CN 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 <gb2312.h> |
| #include <stdint.h> |
| |
| /* Definitions used in the body of the `gconv' function. */ |
| #define CHARSET_NAME "EUC-CN//" |
| #define FROM_LOOP from_euc_cn |
| #define TO_LOOP to_euc_cn |
| #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 ISO 8859-1 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. */ \ |
| const unsigned char *endp; \ |
| \ |
| if (NEED_LENGTH_TEST && inptr + 1 >= inend) \ |
| { \ |
| /* The second character is not available. Store \ |
| the intermediate result. */ \ |
| result = GCONV_INCOMPLETE_INPUT; \ |
| break; \ |
| } \ |
| \ |
| ch = inptr[1]; \ |
| \ |
| /* All second bytes of a multibyte character must be >= 0xa1. */ \ |
| if (ch < 0xa1) \ |
| { \ |
| /* This is an illegal character. */ \ |
| result = GCONV_ILLEGAL_INPUT; \ |
| break; \ |
| } \ |
| \ |
| /* This is code set 1: GB 2312-80. */ \ |
| endp = inptr; \ |
| \ |
| ch = gb2312_to_ucs4 (&endp, 2, 0x80); \ |
| if (ch == UNKNOWN_10646_CHAR) \ |
| { \ |
| /* This is an illegal character. */ \ |
| result = GCONV_ILLEGAL_INPUT; \ |
| break; \ |
| } \ |
| \ |
| inptr += 2; \ |
| } \ |
| \ |
| *((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 <= L'\x7f') \ |
| /* It's plain ASCII. */ \ |
| *outptr++ = (unsigned char) ch; \ |
| else \ |
| { \ |
| size_t found; \ |
| \ |
| found = ucs4_to_gb2312 (ch, outptr, \ |
| (NEED_LENGTH_TEST \ |
| ? outend - outptr : MAX_NEEDED_OUTPUT)); \ |
| if (!NEED_LENGTH_TEST || found != 0) \ |
| { \ |
| if (found == UNKNOWN_10646_CHAR) \ |
| { \ |
| /* Illegal character. */ \ |
| result = GCONV_ILLEGAL_INPUT; \ |
| break; \ |
| } \ |
| \ |
| /* It's a GB 2312 character, adjust it for EUC-CN. */ \ |
| *outptr++ += 0x80; \ |
| *outptr++ += 0x80; \ |
| } \ |
| else \ |
| { \ |
| /* We ran out of space. */ \ |
| result = GCONV_FULL_OUTPUT; \ |
| break; \ |
| } \ |
| } \ |
| inptr += 4; \ |
| } |
| #include <iconv/loop.c> |
| |
| |
| /* Now define the toplevel functions. */ |
| #include <iconv/skeleton.c> |