iconvdata/armscii-8.c

   1 /* Conversion to and from ARMSCII-8
   2    Copyright (C) 1997-1999, 2000-2002 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #include <dlfcn.h>
  22 #include <stdint.h>
  23
  24 /* Definitions used in the body of the `gconv' function.  */
  25 #define CHARSET_NAME            "ARMSCII-8//"
  26 #define FROM_LOOP               from_armscii_8
  27 #define TO_LOOP                 to_armscii_8
  28 #define DEFINE_INIT             1
  29 #define DEFINE_FINI             1
  30 #define MIN_NEEDED_FROM         1
  31 #define MIN_NEEDED_TO           4
  32
  33
  34 static const uint16_t map_from_armscii_8[0xfe - 0xa2 + 1] =
  35   {
  36     0x0587, 0x0589, 0x0029, 0x0028, 0x00bb, 0x00ab, 0x2014, 0x002e,
  37     0x055d, 0x002c, 0x002d, 0x058a, 0x2026, 0x055c, 0x055b, 0x055e,
  38     0x0531, 0x0561, 0x0532, 0x0562, 0x0533, 0x0563, 0x0534, 0x0564,
  39     0x0535, 0x0565, 0x0536, 0x0566, 0x0537, 0x0567, 0x0538, 0x0568,
  40     0x0539, 0x0569, 0x053a, 0x056a, 0x053b, 0x056b, 0x053c, 0x056c,
  41     0x053d, 0x056d, 0x053e, 0x056e, 0x053f, 0x056f, 0x0540, 0x0570,
  42     0x0541, 0x0571, 0x0542, 0x0572, 0x0543, 0x0573, 0x0544, 0x0574,
  43     0x0545, 0x0575, 0x0546, 0x0576, 0x0547, 0x0577, 0x0548, 0x0578,
  44     0x0549, 0x0579, 0x054a, 0x057a, 0x054b, 0x057b, 0x054c, 0x057c,
  45     0x054d, 0x057d, 0x054e, 0x057e, 0x054f, 0x057f, 0x0550, 0x0580,
  46     0x0551, 0x0581, 0x0552, 0x0582, 0x0553, 0x0583, 0x0554, 0x0584,
  47     0x0555, 0x0585, 0x0556, 0x0586, 0x055a
  48   };
  49
  50
  51 /* First define the conversion function from ARMSCII-8 to UCS4.  */
  52 #define MIN_NEEDED_INPUT        MIN_NEEDED_FROM
  53 #define MIN_NEEDED_OUTPUT       MIN_NEEDED_TO
  54 #define LOOPFCT                 FROM_LOOP
  55 #define BODY \
  56   {                                                                           \
  57     uint_fast8_t ch = *inptr;                                                 \
  58                                                                               \
  59     if (ch <= 0xa0)                                                           \
  60       /* Upto and including 0xa0 the ARMSCII-8 corresponds to Unicode.  */    \
  61       *((uint32_t *) outptr)++ = ch;                                          \
  62     else if (ch >= 0xa2 && ch <= 0xfe)                                        \
  63       /* Use the table.  */                                                   \
  64       *((uint32_t *) outptr)++ = map_from_armscii_8[ch - 0xa2];               \
  65     else                                                                      \
  66       {                                                                       \
  67         /* This is an illegal character.  */                                  \
  68         STANDARD_FROM_LOOP_ERR_HANDLER (1);                                   \
  69       }                                                                       \
  70                                                                               \
  71     ++inptr;                                                                  \
  72   }
  73 #define LOOP_NEED_FLAGS
  74 #define ONEBYTE_BODY \
  75   {                                                                           \
  76     if (c <= 0xa0)                                                            \
  77       /* Upto and including 0xa0 the ARMSCII-8 corresponds to Unicode.  */    \
  78       return c;                                                               \
  79     else if (c >= 0xa2 && c <= 0xfe)                                          \
  80       /* Use the table.  */                                                   \
  81       return map_from_armscii_8[c - 0xa2];                                    \
  82     else                                                                      \
  83       return WEOF;                                                            \
  84   }
  85 #include <iconv/loop.c>
  86
  87
  88 static const unsigned char map_to_armscii_8[0x58a - 0x531 + 1] =
  89   {
  90     0xb2, 0xb4, 0xb6, 0xb8, 0xba, 0xbc, 0xbe, 0xc0,
  91     0xc2, 0xc4, 0xc6, 0xc8, 0xca, 0xcc, 0xce, 0xd0,
  92     0xd2, 0xd4, 0xd6, 0xd8, 0xda, 0xdc, 0xde, 0xe0,
  93     0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec, 0xee, 0xf0,
  94     0xf2, 0xf4, 0xf6, 0xf8, 0xfa, 0xfc, 0x00, 0x00,
  95     0x00, 0xfe, 0xb0, 0xaf, 0xaa, 0xb1, 0x00, 0x00,
  96     0xb3, 0xb5, 0xb7, 0xb9, 0xbb, 0xbd, 0xbf, 0xc1,
  97     0xc3, 0xc5, 0xc7, 0xc9, 0xcb, 0xcd, 0xcf, 0xd1,
  98     0xd3, 0xd5, 0xd7, 0xd9, 0xdb, 0xdd, 0xdf, 0xe1,
  99     0xe3, 0xe5, 0xe7, 0xe9, 0xeb, 0xed, 0xef, 0xf1,
 100     0xf3, 0xf5, 0xf7, 0xf9, 0xfb, 0xfd, 0xa2, 0x00,
 101     0xa3, 0xad
 102   };
 103
 104
 105 /* Next, define the other direction.  */
 106 #define MIN_NEEDED_INPUT        MIN_NEEDED_TO
 107 #define MIN_NEEDED_OUTPUT       MIN_NEEDED_FROM
 108 #define LOOPFCT                 TO_LOOP
 109 #define BODY \
 110   {                                                                           \
 111     uint32_t ch = *((const uint32_t *) inptr);                                \
 112                                                                               \
 113     if (ch <= 0xa0)                                                           \
 114       /* Upto and including 0xa0 the ARMSCII-8 corresponds to Unicode.  */    \
 115       *outptr = (unsigned char) ch;                                           \
 116     else if (ch == 0xab)                                                      \
 117       *outptr = 0xa7;                                                         \
 118     else if (ch == 0xbb)                                                      \
 119       *outptr = 0xa6;                                                         \
 120     else if (ch >= 0x531 && ch <= 0x58a)                                      \
 121       {                                                                       \
 122         unsigned char oc = map_to_armscii_8[ch - 0x531];                      \
 123                                                                               \
 124         if (oc == 0)                                                          \
 125           /* No valid mapping.  */                                            \
 126           goto err;                                                           \
 127                                                                               \
 128         *outptr = oc;                                                         \
 129       }                                                                       \
 130     else if (ch == 0x2014)                                                    \
 131       *outptr = 0xa8;                                                         \
 132     else if (ch == 0x2026)                                                    \
 133       *outptr = 0xae;                                                         \
 134     else                                                                      \
 135       {                                                                       \
 136         UNICODE_TAG_HANDLER (ch, 4);                                          \
 137                                                                               \
 138         /* We have an illegal character.  */                                  \
 139       err:                                                                    \
 140         STANDARD_TO_LOOP_ERR_HANDLER (4);                                     \
 141       }                                                                       \
 142     ++outptr;                                                                 \
 143     inptr += 4;                                                               \
 144   }
 145 #define LOOP_NEED_FLAGS
 146 #include <iconv/loop.c>
 147
 148
 149 /* Now define the toplevel functions.  */
 150 #include <iconv/skeleton.c>