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