iconvdata/tcvn5712-1.c

   1 /* Conversion to and from TCVN5712-1.
   2    Copyright (C) 2001, 2002 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
   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 #include <stdlib.h>
  24
  25 #define NELEMS(arr) (sizeof (arr) / sizeof (arr[0]))
  26
  27 /* Definitions used in the body of the `gconv' function.  */
  28 #define CHARSET_NAME            "TCVN5712-1//"
  29 #define FROM_LOOP               from_tcvn5712_1
  30 #define TO_LOOP                 to_tcvn5712_1
  31 #define DEFINE_INIT             1
  32 #define DEFINE_FINI             1
  33 #define FROM_LOOP_MIN_NEEDED_FROM       1
  34 #define FROM_LOOP_MAX_NEEDED_FROM       1
  35 #define FROM_LOOP_MIN_NEEDED_TO         4
  36 #define FROM_LOOP_MAX_NEEDED_TO         4
  37 #define TO_LOOP_MIN_NEEDED_FROM         4
  38 #define TO_LOOP_MAX_NEEDED_FROM         4
  39 #define TO_LOOP_MIN_NEEDED_TO           1
  40 #define TO_LOOP_MAX_NEEDED_TO           2
  41 #define PREPARE_LOOP \
  42   int saved_state;                                                            \
  43   int *statep = &data->__statep->__count;
  44 #define EXTRA_LOOP_ARGS         , statep
  45
  46
  47 /* Since we might have to reset input pointer we must be able to save
  48    and restore the state.  */
  49 #define SAVE_RESET_STATE(Save) \
  50   if (Save)                                                                   \
  51     saved_state = *statep;                                                    \
  52   else                                                                        \
  53     *statep = saved_state
  54
  55
  56 /* During TCVN5712-1 to UCS4 conversion, the COUNT element of the state
  57    contains the last UCS4 character, shifted by 3 bits.  */
  58
  59
  60 /* Since this is a stateful encoding we have to provide code which resets
  61    the output state to the initial state.  This has to be done during the
  62    flushing.  */
  63 #define EMIT_SHIFT_TO_INIT \
  64   if (data->__statep->__count != 0)                                           \
  65     {                                                                         \
  66       if (FROM_DIRECTION)                                                     \
  67         {                                                                     \
  68           if (__builtin_expect (outbuf + 4 <= outend, 1))                     \
  69             {                                                                 \
  70               /* Write out the last character.  */                            \
  71               *((uint32_t *) outbuf)++ = data->__statep->__count >> 3;        \
  72               data->__statep->__count = 0;                                    \
  73             }                                                                 \
  74           else                                                                \
  75             /* We don't have enough room in the output buffer.  */            \
  76             status = __GCONV_FULL_OUTPUT;                                     \
  77         }                                                                     \
  78       else                                                                    \
  79         /* We don't use shift states in the TO_DIRECTION.  */                 \
  80         data->__statep->__count = 0;                                          \
  81     }
  82
  83
  84 static const uint16_t map_from_tcvn_low[0x18] =
  85   {
  86     0x0000, 0x00da, 0x1ee4, 0x0003, 0x1eea, 0x1eec, 0x1eee, 0x0007,
  87     0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f,
  88     0x0010, 0x1ee8, 0x1ef0, 0x1ef2, 0x1ef6, 0x1ef8, 0x00dd, 0x1ef4
  89   };
  90
  91 static const uint16_t map_from_tcvn_high[0x80] =
  92   {
  93     0x00c0, 0x1ea2, 0x00c3, 0x00c1, 0x1ea0, 0x1eb6, 0x1eac, 0x00c8,
  94     0x1eba, 0x1ebc, 0x00c9, 0x1eb8, 0x1ec6, 0x00cc, 0x1ec8, 0x0128,
  95     0x00cd, 0x1eca, 0x00d2, 0x1ece, 0x00d5, 0x00d3, 0x1ecc, 0x1ed8,
  96     0x1edc, 0x1ede, 0x1ee0, 0x1eda, 0x1ee2, 0x00d9, 0x1ee6, 0x0168,
  97     0x00a0, 0x0102, 0x00c2, 0x00ca, 0x00d4, 0x01a0, 0x01af, 0x0110,
  98     0x0103, 0x00e2, 0x00ea, 0x00f4, 0x01a1, 0x01b0, 0x0111, 0x1eb0,
  99     0x0300, 0x0309, 0x0303, 0x0301, 0x0323, 0x00e0, 0x1ea3, 0x00e3,
 100     0x00e1, 0x1ea1, 0x1eb2, 0x1eb1, 0x1eb3, 0x1eb5, 0x1eaf, 0x1eb4,
 101     0x1eae, 0x1ea6, 0x1ea8, 0x1eaa, 0x1ea4, 0x1ec0, 0x1eb7, 0x1ea7,
 102     0x1ea9, 0x1eab, 0x1ea5, 0x1ead, 0x00e8, 0x1ec2, 0x1ebb, 0x1ebd,
 103     0x00e9, 0x1eb9, 0x1ec1, 0x1ec3, 0x1ec5, 0x1ebf, 0x1ec7, 0x00ec,
 104     0x1ec9, 0x1ec4, 0x1ebe, 0x1ed2, 0x0129, 0x00ed, 0x1ecb, 0x00f2,
 105     0x1ed4, 0x1ecf, 0x00f5, 0x00f3, 0x1ecd, 0x1ed3, 0x1ed5, 0x1ed7,
 106     0x1ed1, 0x1ed9, 0x1edd, 0x1edf, 0x1ee1, 0x1edb, 0x1ee3, 0x00f9,
 107     0x1ed6, 0x1ee7, 0x0169, 0x00fa, 0x1ee5, 0x1eeb, 0x1eed, 0x1eef,
 108     0x1ee9, 0x1ef1, 0x1ef3, 0x1ef7, 0x1ef9, 0x00fd, 0x1ef5, 0x1ed0
 109   };
 110
 111
 112 /* TCVN5712-1 contains five combining characters:
 113    0x0300, 0x0301, 0x0303, 0x0309, 0x0323.  */
 114
 115 /* Composition tables for each of the relevant combining characters.  */
 116 static const struct
 117 {
 118   uint16_t base;
 119   uint16_t composed;
 120 } comp_table_data[] =
 121   {
 122 #define COMP_TABLE_IDX_0300 0
 123 #define COMP_TABLE_LEN_0300 28
 124     { 0x0041, 0x00C0 },
 125     { 0x0045, 0x00C8 },
 126     { 0x0049, 0x00CC },
 127     { 0x004E, 0x01F8 },
 128     { 0x004F, 0x00D2 },
 129     { 0x0055, 0x00D9 },
 130     { 0x0057, 0x1E80 },
 131     { 0x0059, 0x1EF2 },
 132     { 0x0061, 0x00E0 },
 133     { 0x0065, 0x00E8 },
 134     { 0x0069, 0x00EC },
 135     { 0x006E, 0x01F9 },
 136     { 0x006F, 0x00F2 },
 137     { 0x0075, 0x00F9 },
 138     { 0x0077, 0x1E81 },
 139     { 0x0079, 0x1EF3 },
 140   /*{ 0x00A8, 0x1FED },*/
 141     { 0x00C2, 0x1EA6 },
 142     { 0x00CA, 0x1EC0 },
 143     { 0x00D4, 0x1ED2 },
 144   /*{ 0x00DC, 0x01DB },*/
 145     { 0x00E2, 0x1EA7 },
 146     { 0x00EA, 0x1EC1 },
 147     { 0x00F4, 0x1ED3 },
 148   /*{ 0x00FC, 0x01DC },*/
 149     { 0x0102, 0x1EB0 },
 150     { 0x0103, 0x1EB1 },
 151   /*{ 0x0112, 0x1E14 },*/
 152   /*{ 0x0113, 0x1E15 },*/
 153   /*{ 0x014C, 0x1E50 },*/
 154   /*{ 0x014D, 0x1E51 },*/
 155     { 0x01A0, 0x1EDC },
 156     { 0x01A1, 0x1EDD },
 157     { 0x01AF, 0x1EEA },
 158     { 0x01B0, 0x1EEB },
 159 #define COMP_TABLE_IDX_0301 (COMP_TABLE_IDX_0300 + COMP_TABLE_LEN_0300)
 160 #define COMP_TABLE_LEN_0301 51
 161     { 0x0041, 0x00C1 },
 162     { 0x0043, 0x0106 },
 163     { 0x0045, 0x00C9 },
 164     { 0x0047, 0x01F4 },
 165     { 0x0049, 0x00CD },
 166     { 0x004B, 0x1E30 },
 167     { 0x004C, 0x0139 },
 168     { 0x004D, 0x1E3E },
 169     { 0x004E, 0x0143 },
 170     { 0x004F, 0x00D3 },
 171     { 0x0050, 0x1E54 },
 172     { 0x0052, 0x0154 },
 173     { 0x0053, 0x015A },
 174     { 0x0055, 0x00DA },
 175     { 0x0057, 0x1E82 },
 176     { 0x0059, 0x00DD },
 177     { 0x005A, 0x0179 },
 178     { 0x0061, 0x00E1 },
 179     { 0x0063, 0x0107 },
 180     { 0x0065, 0x00E9 },
 181     { 0x0067, 0x01F5 },
 182     { 0x0069, 0x00ED },
 183     { 0x006B, 0x1E31 },
 184     { 0x006C, 0x013A },
 185     { 0x006D, 0x1E3F },
 186     { 0x006E, 0x0144 },
 187     { 0x006F, 0x00F3 },
 188     { 0x0070, 0x1E55 },
 189     { 0x0072, 0x0155 },
 190     { 0x0073, 0x015B },
 191     { 0x0075, 0x00FA },
 192     { 0x0077, 0x1E83 },
 193     { 0x0079, 0x00FD },
 194     { 0x007A, 0x017A },
 195     { 0x00A5, 0x0385 },
 196   /*{ 0x00A8, 0x1FEE },*/
 197     { 0x00C2, 0x1EA4 },
 198   /*{ 0x00C5, 0x01FA },*/
 199   /*{ 0x00C6, 0x01FC },*/
 200   /*{ 0x00C7, 0x1E08 },*/
 201     { 0x00CA, 0x1EBE },
 202   /*{ 0x00CF, 0x1E2E },*/
 203     { 0x00D4, 0x1ED0 },
 204     { 0x00D5, 0x1E4C },
 205   /*{ 0x00D8, 0x01FE },*/
 206   /*{ 0x00DC, 0x01D7 },*/
 207     { 0x00E2, 0x1EA5 },
 208   /*{ 0x00E5, 0x01FB },*/
 209   /*{ 0x00E6, 0x01FD },*/
 210   /*{ 0x00E7, 0x1E09 },*/
 211     { 0x00EA, 0x1EBF },
 212   /*{ 0x00EF, 0x1E2F },*/
 213     { 0x00F4, 0x1ED1 },
 214     { 0x00F5, 0x1E4D },
 215   /*{ 0x00F8, 0x01FF },*/
 216   /*{ 0x00FC, 0x01D8 },*/
 217     { 0x0102, 0x1EAE },
 218     { 0x0103, 0x1EAF },
 219   /*{ 0x0112, 0x1E16 },*/
 220   /*{ 0x0113, 0x1E17 },*/
 221   /*{ 0x014C, 0x1E52 },*/
 222   /*{ 0x014D, 0x1E53 },*/
 223     { 0x0168, 0x1E78 },
 224     { 0x0169, 0x1E79 },
 225     { 0x01A0, 0x1EDA },
 226     { 0x01A1, 0x1EDB },
 227     { 0x01AF, 0x1EE8 },
 228     { 0x01B0, 0x1EE9 },
 229 #define COMP_TABLE_IDX_0303 (COMP_TABLE_IDX_0301 + COMP_TABLE_LEN_0301)
 230 #define COMP_TABLE_LEN_0303 34
 231     { 0x0041, 0x00C3 },
 232     { 0x0045, 0x1EBC },
 233     { 0x0049, 0x0128 },
 234     { 0x004E, 0x00D1 },
 235     { 0x004F, 0x00D5 },
 236     { 0x0055, 0x0168 },
 237     { 0x0056, 0x1E7C },
 238     { 0x0059, 0x1EF8 },
 239     { 0x0061, 0x00E3 },
 240     { 0x0065, 0x1EBD },
 241     { 0x0069, 0x0129 },
 242     { 0x006E, 0x00F1 },
 243     { 0x006F, 0x00F5 },
 244     { 0x0075, 0x0169 },
 245     { 0x0076, 0x1E7D },
 246     { 0x0079, 0x1EF9 },
 247     { 0x00C2, 0x1EAA },
 248     { 0x00CA, 0x1EC4 },
 249     { 0x00D3, 0x1E4C },
 250     { 0x00D4, 0x1ED6 },
 251     { 0x00D6, 0x1E4E },
 252     { 0x00DA, 0x1E78 },
 253     { 0x00E2, 0x1EAB },
 254     { 0x00EA, 0x1EC5 },
 255     { 0x00F3, 0x1E4D },
 256     { 0x00F4, 0x1ED7 },
 257     { 0x00F6, 0x1E4F },
 258     { 0x00FA, 0x1E79 },
 259     { 0x0102, 0x1EB4 },
 260     { 0x0103, 0x1EB5 },
 261     { 0x01A0, 0x1EE0 },
 262     { 0x01A1, 0x1EE1 },
 263     { 0x01AF, 0x1EEE },
 264     { 0x01B0, 0x1EEF },
 265 #define COMP_TABLE_IDX_0309 (COMP_TABLE_IDX_0303 + COMP_TABLE_LEN_0303)
 266 #define COMP_TABLE_LEN_0309 24
 267     { 0x0041, 0x1EA2 },
 268     { 0x0045, 0x1EBA },
 269     { 0x0049, 0x1EC8 },
 270     { 0x004F, 0x1ECE },
 271     { 0x0055, 0x1EE6 },
 272     { 0x0059, 0x1EF6 },
 273     { 0x0061, 0x1EA3 },
 274     { 0x0065, 0x1EBB },
 275     { 0x0069, 0x1EC9 },
 276     { 0x006F, 0x1ECF },
 277     { 0x0075, 0x1EE7 },
 278     { 0x0079, 0x1EF7 },
 279     { 0x00C2, 0x1EA8 },
 280     { 0x00CA, 0x1EC2 },
 281     { 0x00D4, 0x1ED4 },
 282     { 0x00E2, 0x1EA9 },
 283     { 0x00EA, 0x1EC3 },
 284     { 0x00F4, 0x1ED5 },
 285     { 0x0102, 0x1EB2 },
 286     { 0x0103, 0x1EB3 },
 287     { 0x01A0, 0x1EDE },
 288     { 0x01A1, 0x1EDF },
 289     { 0x01AF, 0x1EEC },
 290     { 0x01B0, 0x1EED },
 291 #define COMP_TABLE_IDX_0323 (COMP_TABLE_IDX_0309 + COMP_TABLE_LEN_0309)
 292 #define COMP_TABLE_LEN_0323 50
 293     { 0x0041, 0x1EA0 },
 294     { 0x0042, 0x1E04 },
 295     { 0x0044, 0x1E0C },
 296     { 0x0045, 0x1EB8 },
 297     { 0x0048, 0x1E24 },
 298     { 0x0049, 0x1ECA },
 299     { 0x004B, 0x1E32 },
 300     { 0x004C, 0x1E36 },
 301     { 0x004D, 0x1E42 },
 302     { 0x004E, 0x1E46 },
 303     { 0x004F, 0x1ECC },
 304     { 0x0052, 0x1E5A },
 305     { 0x0053, 0x1E62 },
 306     { 0x0054, 0x1E6C },
 307     { 0x0055, 0x1EE4 },
 308     { 0x0056, 0x1E7E },
 309     { 0x0057, 0x1E88 },
 310     { 0x0059, 0x1EF4 },
 311     { 0x005A, 0x1E92 },
 312     { 0x0061, 0x1EA1 },
 313     { 0x0062, 0x1E05 },
 314     { 0x0064, 0x1E0D },
 315     { 0x0065, 0x1EB9 },
 316     { 0x0068, 0x1E25 },
 317     { 0x0069, 0x1ECB },
 318     { 0x006B, 0x1E33 },
 319     { 0x006C, 0x1E37 },
 320     { 0x006D, 0x1E43 },
 321     { 0x006E, 0x1E47 },
 322     { 0x006F, 0x1ECD },
 323     { 0x0072, 0x1E5B },
 324     { 0x0073, 0x1E63 },
 325     { 0x0074, 0x1E6D },
 326     { 0x0075, 0x1EE5 },
 327     { 0x0076, 0x1E7F },
 328     { 0x0077, 0x1E89 },
 329     { 0x0079, 0x1EF5 },
 330     { 0x007A, 0x1E93 },
 331     { 0x00C2, 0x1EAC },
 332     { 0x00CA, 0x1EC6 },
 333     { 0x00D4, 0x1ED8 },
 334     { 0x00E2, 0x1EAD },
 335     { 0x00EA, 0x1EC7 },
 336     { 0x00F4, 0x1ED9 },
 337     { 0x0102, 0x1EB6 },
 338     { 0x0103, 0x1EB7 },
 339     { 0x01A0, 0x1EE2 },
 340     { 0x01A1, 0x1EE3 },
 341     { 0x01AF, 0x1EF0 },
 342     { 0x01B0, 0x1EF1 },
 343 #define COMP_TABLE_IDX_END (COMP_TABLE_IDX_0323 + COMP_TABLE_LEN_0323)
 344   };
 345 /* Compile-time verification of table size.  */
 346 typedef int verify1[(NELEMS (comp_table_data) == COMP_TABLE_IDX_END) - 1];
 347
 348 static const struct
 349 {
 350   unsigned int idx;
 351   unsigned int len;
 352 } comp_table[5] =
 353   {
 354     { COMP_TABLE_IDX_0300, COMP_TABLE_LEN_0300 },
 355     { COMP_TABLE_IDX_0301, COMP_TABLE_LEN_0301 },
 356     { COMP_TABLE_IDX_0303, COMP_TABLE_LEN_0303 },
 357     { COMP_TABLE_IDX_0309, COMP_TABLE_LEN_0309 },
 358     { COMP_TABLE_IDX_0323, COMP_TABLE_LEN_0323 },
 359   };
 360
 361
 362 /* First define the conversion function from TCVN5712-1 to UCS4.  */
 363 #define MIN_NEEDED_INPUT        FROM_LOOP_MIN_NEEDED_FROM
 364 #define MAX_NEEDED_INPUT        FROM_LOOP_MAX_NEEDED_FROM
 365 #define MIN_NEEDED_OUTPUT       FROM_LOOP_MIN_NEEDED_TO
 366 #define MAX_NEEDED_OUTPUT       FROM_LOOP_MAX_NEEDED_TO
 367 #define LOOPFCT                 FROM_LOOP
 368 #define BODY \
 369   {                                                                           \
 370     uint32_t ch = *inptr;                                                     \
 371     uint32_t last_ch;                                                         \
 372     int must_buffer_ch;                                                       \
 373                                                                               \
 374     if (ch < 0x18)                                                            \
 375       ch = map_from_tcvn_low[ch];                                             \
 376     else if (ch >= 0x80)                                                      \
 377       ch = map_from_tcvn_high[ch - 0x80];                                     \
 378                                                                               \
 379     /* Determine whether there is a buffered character pending.  */           \
 380     last_ch = *statep >> 3;                                                   \
 381                                                                               \
 382     /* We have to buffer ch if it is a possible match in comp_table_data.  */ \
 383     must_buffer_ch = (ch >= 0x0041 && ch <= 0x01b0);                          \
 384                                                                               \
 385     if (last_ch)                                                              \
 386       {                                                                       \
 387         if (ch >= 0x0300 && ch < 0x0340)                                      \
 388           {                                                                   \
 389             /* See whether last_ch and ch can be combined.  */                \
 390             unsigned int i;                                                   \
 391             unsigned int i1;                                                  \
 392             unsigned int i2;                                                  \
 393                                                                               \
 394             switch (ch)                                                       \
 395               {                                                               \
 396               case 0x0300:                                                    \
 397                 i = 0;                                                        \
 398                 break;                                                        \
 399               case 0x0301:                                                    \
 400                 i = 1;                                                        \
 401                 break;                                                        \
 402               case 0x0303:                                                    \
 403                 i = 2;                                                        \
 404                 break;                                                        \
 405               case 0x0309:                                                    \
 406                 i = 3;                                                        \
 407                 break;                                                        \
 408               case 0x0323:                                                    \
 409                 i = 4;                                                        \
 410                 break;                                                        \
 411               default:                                                        \
 412                 abort ();                                                     \
 413               }                                                               \
 414                                                                               \
 415             i1 = comp_table[i].idx;                                           \
 416             i2 = i1 + comp_table[i].len - 1;                                  \
 417                                                                               \
 418             if (last_ch >= comp_table_data[i1].base                           \
 419                 && last_ch <= comp_table_data[i2].base)                       \
 420               {                                                               \
 421                 for (;;)                                                      \
 422                   {                                                           \
 423                     i = (i1 + i2) >> 1;                                       \
 424                     if (last_ch == comp_table_data[i].base)                   \
 425                       break;                                                  \
 426                     if (last_ch < comp_table_data[i].base)                    \
 427                       {                                                       \
 428                         if (i1 == i)                                          \
 429                           goto not_combining;                                 \
 430                         i2 = i;                                               \
 431                       }                                                       \
 432                     else                                                      \
 433                       {                                                       \
 434                         if (i1 != i)                                          \
 435                           i1 = i;                                             \
 436                         else                                                  \
 437                           {                                                   \
 438                             i = i2;                                           \
 439                             if (last_ch == comp_table_data[i].base)           \
 440                               break;                                          \
 441                             goto not_combining;                               \
 442                           }                                                   \
 443                       }                                                       \
 444                   }                                                           \
 445                 last_ch = comp_table_data[i].composed;                        \
 446                 /* Output the combined character.  */                         \
 447                 put32 (outptr, last_ch);                                      \
 448                 outptr += 4;                                                  \
 449                 *statep = 0;                                                  \
 450                 ++inptr;                                                      \
 451                 continue;                                                     \
 452               }                                                               \
 453           }                                                                   \
 454                                                                               \
 455       not_combining:                                                          \
 456         /* Output the buffered character.  */                                 \
 457         put32 (outptr, last_ch);                                              \
 458         outptr += 4;                                                          \
 459         *statep = 0;                                                          \
 460                                                                               \
 461         /* If we don't have enough room to output ch as well, then deal       \
 462            with it in another round.  */                                      \
 463         if (!must_buffer_ch && __builtin_expect (outptr + 4 > outend, 0))     \
 464           continue;                                                           \
 465       }                                                                       \
 466                                                                               \
 467     if (must_buffer_ch)                                                       \
 468       *statep = ch << 3;                                                      \
 469     else                                                                      \
 470       {                                                                       \
 471         put32 (outptr, ch);                                                   \
 472         outptr += 4;                                                          \
 473       }                                                                       \
 474     ++inptr;                                                                  \
 475   }
 476 #define EXTRA_LOOP_DECLS        , int *statep
 477 #include <iconv/loop.c>
 478
 479
 480 /* Next, define the conversion function from UCS4 to CP1258.  */
 481
 482 static const unsigned char from_ucs4[] =
 483   {
 484 #define FROM_IDX_00 0
 485     0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x07, /* 0x0001-0x0007 */
 486     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x0008-0x000f */
 487     0x10,                                           /* 0x0010-0x0010 */
 488
 489 #define FROM_IDX_01 (FROM_IDX_00 + 16)
 490     0x80, 0x83, 0xa2, 0x82, 0x00, 0x00, 0x00, 0x00, /* 0x00c0-0x00c7 */
 491     0x87, 0x8a, 0xa3, 0x00, 0x8d, 0x90, 0x00, 0x00, /* 0x00c8-0x00cf */
 492     0x00, 0x00, 0x92, 0x95, 0xa4, 0x94, 0x00, 0x00, /* 0x00d0-0x00d7 */
 493     0x00, 0x9d, 0x01, 0x00, 0x00, 0x16, 0x00, 0x00, /* 0x00d8-0x00df */
 494     0xb5, 0xb8, 0xa9, 0xb7, 0x00, 0x00, 0x00, 0x00, /* 0x00e0-0x00e7 */
 495     0xcc, 0xd0, 0xaa, 0x00, 0xd7, 0xdd, 0x00, 0x00, /* 0x00e8-0x00ef */
 496     0x00, 0x00, 0xdf, 0xe3, 0xab, 0xe2, 0x00, 0x00, /* 0x00f0-0x00f7 */
 497     0x00, 0xef, 0xf3, 0x00, 0x00, 0xfd, 0x00, 0x00, /* 0x00f8-0x00ff */
 498     0x00, 0x00, 0xa1, 0xa8, 0x00, 0x00, 0x00, 0x00, /* 0x0100-0x0107 */
 499     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0108-0x010f */
 500     0xa7, 0xae, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0110-0x0117 */
 501     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0118-0x011f */
 502     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0120-0x0127 */
 503     0x8f, 0xdc,                                     /* 0x0128-0x0129 */
 504
 505 #define FROM_IDX_02 (FROM_IDX_01 + 106)
 506     0x9f, 0xf2,                                     /* 0x0168-0x0169 */
 507
 508 #define FROM_IDX_03 (FROM_IDX_02 + 2)
 509     0xa5, 0xac, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x01a0-0x01a7 */
 510     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa6, /* 0x01a8-0x01af */
 511     0xad,                                           /* 0x01b0-0x01b0 */
 512
 513 #define FROM_IDX_04 (FROM_IDX_03 + 17)
 514     0xb0, 0xb3, 0x00, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x0300-0x0307 */
 515     0x00, 0xb1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0308-0x030f */
 516     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0310-0x0317 */
 517     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0318-0x031f */
 518     0x00, 0x00, 0x00, 0xb4,                         /* 0x0320-0x0323 */
 519
 520 #define FROM_IDX_05 (FROM_IDX_04 + 36)
 521     0x84, 0xb9, 0x81, 0xb6, 0xc4, 0xca, 0xc1, 0xc7, /* 0x1ea0-0x1ea7 */
 522     0xc2, 0xc8, 0xc3, 0xc9, 0x86, 0xcb, 0xc0, 0xbe, /* 0x1ea8-0x1eaf */
 523     0xaf, 0xbb, 0xba, 0xbc, 0xbf, 0xbd, 0x85, 0xc6, /* 0x1eb0-0x1eb7 */
 524     0x8b, 0xd1, 0x88, 0xce, 0x89, 0xcf, 0xda, 0xd5, /* 0x1eb8-0x1ebf */
 525     0xc5, 0xd2, 0xcd, 0xd3, 0xd9, 0xd4, 0x8c, 0xd6, /* 0x1ec0-0x1ec7 */
 526     0x8e, 0xd8, 0x91, 0xde, 0x96, 0xe4, 0x93, 0xe1, /* 0x1ec8-0x1ecf */
 527     0xff, 0xe8, 0xdb, 0xe5, 0xe0, 0xe6, 0xf0, 0xe7, /* 0x1ed0-0x1ed7 */
 528     0x97, 0xe9, 0x9b, 0xed, 0x98, 0xea, 0x99, 0xeb, /* 0x1ed8-0x1edf */
 529     0x9a, 0xec, 0x9c, 0xee, 0x02, 0xf4, 0x9e, 0xf1, /* 0x1ee0-0x1ee7 */
 530     0x11, 0xf8, 0x04, 0xf5, 0x05, 0xf6, 0x06, 0xf7, /* 0x1ee8-0x1eef */
 531     0x12, 0xf9, 0x13, 0xfa, 0x17, 0xfe, 0x14, 0xfb, /* 0x1ef0-0x1ef7 */
 532     0x15, 0xfc                                      /* 0x1ef8-0x1ef9 */
 533 #define FROM_IDX_END (FROM_IDX_05 + 90)
 534   };
 535 /* Compile-time verification of table size.  */
 536 typedef int verify2[(NELEMS (from_ucs4) == FROM_IDX_END) - 1];
 537
 538 /* Decomposition table for the relevant Unicode characters. */
 539 static const struct
 540 {
 541   uint16_t composed;
 542   uint32_t base:8;
 543   uint32_t comb1:8;
 544 } decomp_table[] =
 545   {
 546     { 0x00d1, 0x4e, 0xb2 },
 547     { 0x00f1, 0x6e, 0xb2 },
 548     { 0x0106, 0x43, 0xb3 },
 549     { 0x0107, 0x63, 0xb3 },
 550     { 0x0139, 0x4c, 0xb3 },
 551     { 0x013a, 0x6c, 0xb3 },
 552     { 0x0143, 0x4e, 0xb3 },
 553     { 0x0144, 0x6e, 0xb3 },
 554     { 0x0154, 0x52, 0xb3 },
 555     { 0x0155, 0x72, 0xb3 },
 556     { 0x015a, 0x53, 0xb3 },
 557     { 0x015b, 0x73, 0xb3 },
 558     { 0x0179, 0x5a, 0xb3 },
 559     { 0x017a, 0x7a, 0xb3 },
 560     { 0x01f4, 0x47, 0xb3 },
 561     { 0x01f5, 0x67, 0xb3 },
 562     { 0x01f8, 0x4e, 0xb0 },
 563     { 0x01f9, 0x6e, 0xb0 },
 564     { 0x1e04, 0x42, 0xb4 },
 565     { 0x1e05, 0x62, 0xb4 },
 566     { 0x1e0c, 0x44, 0xb4 },
 567     { 0x1e0d, 0x64, 0xb4 },
 568     { 0x1e24, 0x48, 0xb4 },
 569     { 0x1e25, 0x68, 0xb4 },
 570     { 0x1e30, 0x4b, 0xb3 },
 571     { 0x1e31, 0x6b, 0xb3 },
 572     { 0x1e32, 0x4b, 0xb4 },
 573     { 0x1e33, 0x6b, 0xb4 },
 574     { 0x1e36, 0x4c, 0xb4 },
 575     { 0x1e37, 0x6c, 0xb4 },
 576     { 0x1e3e, 0x4d, 0xb3 },
 577     { 0x1e3f, 0x6d, 0xb3 },
 578     { 0x1e42, 0x4d, 0xb4 },
 579     { 0x1e43, 0x6d, 0xb4 },
 580     { 0x1e46, 0x4e, 0xb4 },
 581     { 0x1e47, 0x6e, 0xb4 },
 582     { 0x1e54, 0x50, 0xb3 },
 583     { 0x1e55, 0x70, 0xb3 },
 584     { 0x1e5a, 0x52, 0xb4 },
 585     { 0x1e5b, 0x72, 0xb4 },
 586     { 0x1e62, 0x53, 0xb4 },
 587     { 0x1e63, 0x73, 0xb4 },
 588     { 0x1e6c, 0x54, 0xb4 },
 589     { 0x1e6d, 0x74, 0xb4 },
 590     { 0x1e7c, 0x56, 0xb2 },
 591     { 0x1e7d, 0x76, 0xb2 },
 592     { 0x1e7e, 0x56, 0xb4 },
 593     { 0x1e7f, 0x76, 0xb4 },
 594     { 0x1e80, 0x57, 0xb0 },
 595     { 0x1e81, 0x77, 0xb0 },
 596     { 0x1e82, 0x57, 0xb3 },
 597     { 0x1e83, 0x77, 0xb3 },
 598     { 0x1e88, 0x57, 0xb4 },
 599     { 0x1e89, 0x77, 0xb4 },
 600     { 0x1e92, 0x5a, 0xb4 },
 601     { 0x1e93, 0x7a, 0xb4 },
 602   };
 603
 604
 605 /* Next, define the other direction.  */
 606 #define MIN_NEEDED_INPUT        TO_LOOP_MIN_NEEDED_FROM
 607 #define MAX_NEEDED_INPUT        TO_LOOP_MAX_NEEDED_FROM
 608 #define MIN_NEEDED_OUTPUT       TO_LOOP_MIN_NEEDED_TO
 609 #define MAX_NEEDED_OUTPUT       TO_LOOP_MAX_NEEDED_TO
 610 #define LOOPFCT                 TO_LOOP
 611 #define BODY \
 612   {                                                                           \
 613     uint32_t ch = get32 (inptr);                                              \
 614                                                                               \
 615     if (ch == 0x00 || (ch >= 0x18 && ch < 0x80) || ch == 0xa0)                \
 616       {                                                                       \
 617         *outptr++ = ch;                                                       \
 618         inptr += 4;                                                           \
 619       }                                                                       \
 620     else                                                                      \
 621       {                                                                       \
 622         unsigned char res;                                                    \
 623                                                                               \
 624         if (ch <= 0x0010)                                                     \
 625           res = from_ucs4[ch - 0x0001 + FROM_IDX_00];                         \
 626         else if (ch >= 0x00c0 && ch <= 0x0129)                                \
 627           res = from_ucs4[ch - 0x00c0 + FROM_IDX_01];                         \
 628         else if (ch >= 0x0168 && ch <= 0x0169)                                \
 629           res = from_ucs4[ch - 0x0168 + FROM_IDX_02];                         \
 630         else if (ch >= 0x01a0 && ch <= 0x01b0)                                \
 631           res = from_ucs4[ch - 0x01a0 + FROM_IDX_03];                         \
 632         else if (ch >= 0x0300 && ch <= 0x0323)                                \
 633           res = from_ucs4[ch - 0x0300 + FROM_IDX_04];                         \
 634         else if (ch >= 0x1ea0 && ch <= 0x1ef9)                                \
 635           res = from_ucs4[ch - 0x1ea0 + FROM_IDX_05];                         \
 636         else                                                                  \
 637           {                                                                   \
 638             UNICODE_TAG_HANDLER (ch, 4);                                      \
 639             res = 0;                                                          \
 640           }                                                                   \
 641                                                                               \
 642         if (__builtin_expect (res != 0, 1))                                   \
 643           {                                                                   \
 644             *outptr++ = res;                                                  \
 645             inptr += 4;                                                       \
 646           }                                                                   \
 647         else                                                                  \
 648           {                                                                   \
 649             /* Try canonical decomposition.  */                               \
 650             unsigned int i1;                                                  \
 651             unsigned int i2;                                                  \
 652                                                                               \
 653             i1 = 0;                                                           \
 654             i2 = sizeof (decomp_table) / sizeof (decomp_table[0]) - 1;        \
 655             if (ch >= decomp_table[i1].composed                               \
 656                 && ch <= decomp_table[i2].composed)                           \
 657               {                                                               \
 658                 unsigned int i;                                               \
 659                                                                               \
 660                 for (;;)                                                      \
 661                   {                                                           \
 662                     i = (i1 + i2) >> 1;                                       \
 663                     if (ch == decomp_table[i].composed)                       \
 664                       break;                                                  \
 665                     if (ch < decomp_table[i].composed)                        \
 666                       {                                                       \
 667                         if (i1 == i)                                          \
 668                           goto failed;                                        \
 669                         i2 = i;                                               \
 670                       }                                                       \
 671                     else                                                      \
 672                       {                                                       \
 673                         if (i1 != i)                                          \
 674                           i1 = i;                                             \
 675                         else                                                  \
 676                           {                                                   \
 677                             i = i2;                                           \
 678                             if (ch == decomp_table[i].composed)               \
 679                               break;                                          \
 680                             goto failed;                                      \
 681                           }                                                   \
 682                       }                                                       \
 683                   }                                                           \
 684                                                                               \
 685                 /* See whether we have room for two bytes.  */                \
 686                 if (__builtin_expect (outptr + 1 >= outend, 0))               \
 687                   {                                                           \
 688                     result = __GCONV_FULL_OUTPUT;                             \
 689                     break;                                                    \
 690                   }                                                           \
 691                                                                               \
 692                 /* Found a canonical decomposition.  */                       \
 693                 *outptr++ = decomp_table[i].base;                             \
 694                 *outptr++ = decomp_table[i].comb1;                            \
 695                 inptr += 4;                                                   \
 696                 continue;                                                     \
 697               }                                                               \
 698                                                                               \
 699           failed:                                                             \
 700             /* This is an illegal character.  */                              \
 701             STANDARD_TO_LOOP_ERR_HANDLER (4);                                 \
 702           }                                                                   \
 703       }                                                                       \
 704   }
 705 #define LOOP_NEED_FLAGS
 706 #define EXTRA_LOOP_DECLS        , int *statep
 707 #include <iconv/loop.c>
 708
 709
 710 /* Now define the toplevel functions.  */
 711 #include <iconv/skeleton.c>