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[/] [openrisc/] [trunk/] [gnu-old/] [newlib-1.17.0/] [newlib/] [iconvdata/] [euc-jp.c] - Blame information for rev 853

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1 148 jeremybenn 
/* Mapping tables for EUC-JP handling.
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   Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, write to the Free
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   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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   02111-1307 USA.  */
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#include <dlfcn.h>
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#include <stdint.h>
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#include <gconv.h>
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#include <jis0201.h>
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#include <jis0208.h>
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#include <jis0212.h>
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/* Definitions used in the body of the `gconv' function.  */
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#define CHARSET_NAME            "EUC-JP//"
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#define FROM_LOOP               from_euc_jp
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#define TO_LOOP                 to_euc_jp
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#define DEFINE_INIT             1
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#define DEFINE_FINI             1
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#define MIN_NEEDED_FROM         1
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#define MAX_NEEDED_FROM         3
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#define MIN_NEEDED_TO           4
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/* First define the conversion function from EUC-JP to UCS4.  */
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#define MIN_NEEDED_INPUT        MIN_NEEDED_FROM
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#define MAX_NEEDED_INPUT        MAX_NEEDED_FROM
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#define MIN_NEEDED_OUTPUT       MIN_NEEDED_TO
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#define LOOPFCT                 FROM_LOOP
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#define BODY \
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  {                                                                           \
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    uint32_t ch = *inptr;                                                     \
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                                                                              \
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    if (ch < 0x8e || (ch >= 0x90 && ch <= 0x9f))                              \
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      ++inptr;                                                                \
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    else if (ch == 0xff)                                                      \
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      {                                                                       \
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        /* This is illegal.  */                                               \
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        if (! ignore_errors_p ())                                             \
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          {                                                                   \
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            result = __GCONV_ILLEGAL_INPUT;                                   \
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            break;                                                            \
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          }                                                                   \
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                                                                              \
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        ++inptr;                                                              \
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        ++*irreversible;                                                      \
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        continue;                                                             \
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      }                                                                       \
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    else                                                                      \
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      {                                                                       \
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        /* Two or more byte character.  First test whether the next           \
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           character is also available.  */                                   \
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        int ch2;                                                              \
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                                                                              \
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        if (__builtin_expect (inptr + 1 >= inend, 0))                          \
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          {                                                                   \
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            /* The second character is not available.  Store the              \
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               intermediate result.  */                                       \
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            result = __GCONV_INCOMPLETE_INPUT;                                \
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            break;                                                            \
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          }                                                                   \
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                                                                              \
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        ch2 = inptr[1];                                                       \
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                                                                              \
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        /* All second bytes of a multibyte character must be >= 0xa1. */      \
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        if (__builtin_expect (ch2 < 0xa1, 0))                                  \
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          {                                                                   \
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            /* This is an illegal character.  */                              \
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            if (! ignore_errors_p ())                                         \
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              {                                                               \
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                result = __GCONV_ILLEGAL_INPUT;                               \
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                break;                                                        \
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              }                                                               \
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                                                                              \
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            ++inptr;                                                          \
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            ++*irreversible;                                                  \
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            continue;                                                         \
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          }                                                                   \
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                                                                              \
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        if (ch == 0x8e)                                                       \
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          {                                                                   \
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            /* This is code set 2: half-width katakana.  */                   \
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            ch = jisx0201_to_ucs4 (ch2);                                      \
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            if (__builtin_expect (ch, 0) == __UNKNOWN_10646_CHAR)              \
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              {                                                               \
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                /* Illegal character.  */                                     \
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                if (! ignore_errors_p ())                                     \
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                  {                                                           \
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                    /* This is an illegal character.  */                      \
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                    result = __GCONV_ILLEGAL_INPUT;                           \
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                    break;                                                    \
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                  }                                                           \
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              }                                                               \
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                                                                              \
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            inptr += 2;                                                       \
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          }                                                                   \
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        else                                                                  \
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          {                                                                   \
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            const unsigned char *endp;                                        \
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                                                                              \
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            if (ch == 0x8f)                                                   \
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              {                                                               \
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                /* This is code set 3: JIS X 0212-1990.  */                   \
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                endp = inptr + 1;                                             \
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                                                                              \
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                ch = jisx0212_to_ucs4 (&endp, inend - endp, 0x80);            \
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              }                                                               \
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            else                                                              \
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              {                                                               \
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                /* This is code set 1: JIS X 0208.  */                        \
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                endp = inptr;                                                 \
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                                                                              \
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                ch = jisx0208_to_ucs4 (&endp, inend - inptr, 0x80);           \
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              }                                                               \
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                                                                              \
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            if (__builtin_expect (ch, 1) == 0)                                 \
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              {                                                               \
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                /* Not enough input available.  */                            \
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                result = __GCONV_INCOMPLETE_INPUT;                            \
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                break;                                                        \
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              }                                                               \
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            if (__builtin_expect (ch, 0) == __UNKNOWN_10646_CHAR)              \
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              {                                                               \
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                /* Illegal character.  */                                     \
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                if (! ignore_errors_p ())                                     \
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                  {                                                           \
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                    /* This is an illegal character.  */                      \
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                    result = __GCONV_ILLEGAL_INPUT;                           \
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                    break;                                                    \
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                  }                                                           \
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                                                                              \
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                inptr += 2;                                                   \
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                ++*irreversible;                                              \
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                continue;                                                     \
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              }                                                               \
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            inptr = endp;                                                     \
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          }                                                                   \
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      }                                                                       \
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                                                                              \
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    put32 (outptr, ch);                                                       \
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    outptr += 4;                                                              \
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  }
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#define LOOP_NEED_FLAGS
158 
#include <iconv/loop.c>
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160 
 
161 
/* Next, define the other direction.  */
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#define MIN_NEEDED_INPUT        MIN_NEEDED_TO
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#define MIN_NEEDED_OUTPUT       MIN_NEEDED_FROM
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#define MAX_NEEDED_OUTPUT       MAX_NEEDED_FROM
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#define LOOPFCT                 TO_LOOP
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#define BODY \
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  {                                                                           \
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    uint32_t ch = get32 (inptr);                                              \
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                                                                              \
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    if (ch < 0x8e || (ch >= 0x90 && ch <= 0x9f))                              \
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      /* It's plain ASCII or C1.  */                                          \
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      *outptr++ = ch;                                                         \
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    else if (ch == 0xa5)                                                      \
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      /* YEN sign => backslash  */                                            \
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      *outptr++ = 0x5c;                                                       \
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    else if (ch == 0x203e)                                                    \
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      /* overscore => asciitilde */                                           \
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      *outptr++ = 0x7e;                                                       \
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    else                                                                      \
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      {                                                                       \
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        /* Try the JIS character sets.  */                                    \
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        size_t found;                                                         \
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                                                                              \
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        /* See whether we have room for at least two characters.  */          \
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        if (__builtin_expect (outptr + 1 >= outend, 0))                        \
186 
          {                                                                   \
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            result = __GCONV_FULL_OUTPUT;                                     \
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            break;                                                            \
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          }                                                                   \
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                                                                              \
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        found = ucs4_to_jisx0201 (ch, outptr + 1);                            \
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        if (found != __UNKNOWN_10646_CHAR)                                    \
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          {                                                                   \
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            /* Yes, it's a JIS 0201 character.  Store the shift byte.  */     \
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            *outptr = 0x8e;                                                   \
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            outptr += 2;                                                      \
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          }                                                                   \
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        else                                                                  \
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          {                                                                   \
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            /* No JIS 0201 character.  */                                     \
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            found = ucs4_to_jisx0208 (ch, outptr, 2);                         \
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            /* Please note that we always have enough room for the output. */ \
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            if (found != __UNKNOWN_10646_CHAR)                                \
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              {                                                               \
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                /* It's a JIS 0208 character, adjust it for EUC-JP.  */       \
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                *outptr++ += 0x80;                                            \
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                *outptr++ += 0x80;                                            \
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              }                                                               \
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            else                                                              \
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              {                                                               \
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                /* No JIS 0208 character.  */                                 \
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                found = ucs4_to_jisx0212 (ch, outptr + 1,                     \
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                                          outend - outptr - 1);               \
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                                                                              \
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                if (__builtin_expect (found, 1) == 0)                          \
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                  {                                                           \
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                    /* We ran out of space.  */                               \
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                    result = __GCONV_FULL_OUTPUT;                             \
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                    break;                                                    \
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                  }                                                           \
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                else if (__builtin_expect (found, 0) != __UNKNOWN_10646_CHAR) \
222 
                  {                                                           \
223 
                    /* It's a JIS 0212 character, adjust it for EUC-JP.  */   \
224 
                    *outptr++ = 0x8f;                                         \
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                    *outptr++ += 0x80;                                        \
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                    *outptr++ += 0x80;                                        \
227 
                  }                                                           \
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                else                                                          \
229 
                  {                                                           \
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                    UNICODE_TAG_HANDLER (ch, 4);                              \
231 
                                                                              \
232 
                    /* Illegal character.  */                                 \
233 
                    STANDARD_ERR_HANDLER (4);                                 \
234 
                  }                                                           \
235 
              }                                                               \
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          }                                                                   \
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      }                                                                       \
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                                                                              \
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    inptr += 4;                                                               \
240 
  }
241 
#define LOOP_NEED_FLAGS
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#include <iconv/loop.c>
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244 
 
245 
/* Now define the toplevel functions.  */
246 
#include <iconv/skeleton.c>

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