gfx/harfbuzz/src/hb-buffer-deserialize-text-unicode.hh

   1
   2 #line 1 "hb-buffer-deserialize-text-unicode.rl"
   3 /*
   4  * Copyright © 2013  Google, Inc.
   5  *
   6  *  This is part of HarfBuzz, a text shaping library.
   7  *
   8  * Permission is hereby granted, without written agreement and without
   9  * license or royalty fees, to use, copy, modify, and distribute this
  10  * software and its documentation for any purpose, provided that the
  11  * above copyright notice and the following two paragraphs appear in
  12  * all copies of this software.
  13  *
  14  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
  15  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
  16  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
  17  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
  18  * DAMAGE.
  19  *
  20  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
  21  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  22  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
  23  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
  24  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
  25  *
  26  * Google Author(s): Behdad Esfahbod
  27  */
  28
  29 #ifndef HB_BUFFER_DESERIALIZE_TEXT_UNICODE_HH
  30 #define HB_BUFFER_DESERIALIZE_TEXT_UNICODE_HH
  31
  32 #include "hb.hh"
  33
  34
  35 #line 36 "hb-buffer-deserialize-text-unicode.hh"
  36 static const unsigned char _deserialize_text_unicode_trans_keys[] = {
  37         0u, 0u, 9u, 117u, 43u, 102u, 48u, 102u, 48u, 57u, 9u, 124u, 9u, 124u, 9u, 124u,
  38         9u, 124u, 0
  39 };
  40
  41 static const char _deserialize_text_unicode_key_spans[] = {
  42         0, 109, 60, 55, 10, 116, 116, 116,
  43         116
  44 };
  45
  46 static const short _deserialize_text_unicode_index_offsets[] = {
  47         0, 0, 110, 171, 227, 238, 355, 472,
  48         589
  49 };
  50
  51 static const char _deserialize_text_unicode_indicies[] = {
  52         0, 0, 0, 0, 0, 1, 1,
  53         1, 1, 1, 1, 1, 1, 1, 1,
  54         1, 1, 1, 1, 1, 1, 1, 1,
  55         0, 1, 1, 1, 1, 1, 1, 1,
  56         1, 1, 1, 1, 1, 1, 1, 1,
  57         1, 1, 1, 1, 1, 1, 1, 1,
  58         1, 1, 1, 1, 1, 1, 1, 1,
  59         1, 1, 1, 1, 1, 1, 1, 1,
  60         1, 1, 1, 1, 1, 1, 1, 1,
  61         1, 1, 1, 1, 1, 2, 1, 1,
  62         1, 1, 1, 1, 1, 1, 1, 1,
  63         1, 1, 1, 1, 1, 1, 1, 1,
  64         1, 1, 1, 1, 1, 1, 1, 1,
  65         1, 1, 1, 1, 1, 2, 1, 3,
  66         1, 1, 1, 1, 4, 4, 4, 4,
  67         4, 4, 4, 4, 4, 4, 1, 1,
  68         1, 1, 1, 1, 1, 4, 4, 4,
  69         4, 4, 4, 1, 1, 1, 1, 1,
  70         1, 1, 1, 1, 1, 1, 1, 1,
  71         1, 1, 1, 1, 1, 1, 1, 1,
  72         1, 1, 1, 1, 1, 4, 4, 4,
  73         4, 4, 4, 1, 4, 4, 4, 4,
  74         4, 4, 4, 4, 4, 4, 1, 1,
  75         1, 1, 1, 1, 1, 4, 4, 4,
  76         4, 4, 4, 1, 1, 1, 1, 1,
  77         1, 1, 1, 1, 1, 1, 1, 1,
  78         1, 1, 1, 1, 1, 1, 1, 1,
  79         1, 1, 1, 1, 1, 4, 4, 4,
  80         4, 4, 4, 1, 5, 6, 6, 6,
  81         6, 6, 6, 6, 6, 6, 1, 7,
  82         7, 7, 7, 7, 1, 1, 1, 1,
  83         1, 1, 1, 1, 1, 1, 1, 1,
  84         1, 1, 1, 1, 1, 1, 7, 1,
  85         1, 1, 1, 1, 1, 1, 1, 1,
  86         1, 1, 1, 1, 1, 1, 8, 8,
  87         8, 8, 8, 8, 8, 8, 8, 8,
  88         1, 1, 1, 9, 1, 1, 1, 8,
  89         8, 8, 8, 8, 8, 1, 1, 1,
  90         1, 1, 1, 1, 1, 1, 1, 1,
  91         1, 1, 1, 1, 1, 1, 1, 1,
  92         1, 1, 1, 1, 1, 1, 1, 8,
  93         8, 8, 8, 8, 8, 1, 1, 1,
  94         1, 1, 1, 1, 1, 1, 1, 1,
  95         1, 1, 1, 1, 1, 1, 1, 1,
  96         1, 1, 10, 1, 11, 11, 11, 11,
  97         11, 1, 1, 1, 1, 1, 1, 1,
  98         1, 1, 1, 1, 1, 1, 1, 1,
  99         1, 1, 1, 11, 1, 1, 1, 1,
 100         1, 1, 1, 1, 1, 1, 1, 1,
 101         1, 1, 1, 1, 1, 1, 1, 1,
 102         1, 1, 1, 1, 1, 1, 1, 1,
 103         1, 1, 1, 1, 1, 1, 1, 1,
 104         1, 1, 1, 1, 1, 1, 1, 1,
 105         1, 1, 1, 1, 1, 1, 1, 1,
 106         1, 1, 1, 1, 1, 1, 1, 1,
 107         1, 1, 1, 1, 1, 1, 1, 1,
 108         1, 1, 1, 1, 1, 1, 1, 1,
 109         1, 1, 1, 1, 1, 1, 1, 1,
 110         1, 1, 1, 1, 1, 1, 1, 0,
 111         1, 12, 12, 12, 12, 12, 1, 1,
 112         1, 1, 1, 1, 1, 1, 1, 1,
 113         1, 1, 1, 1, 1, 1, 1, 1,
 114         12, 1, 1, 1, 1, 1, 1, 1,
 115         1, 1, 1, 1, 1, 1, 1, 1,
 116         1, 1, 1, 1, 1, 1, 1, 1,
 117         1, 1, 1, 1, 1, 1, 1, 1,
 118         1, 1, 1, 1, 1, 1, 1, 1,
 119         1, 1, 1, 1, 1, 1, 1, 1,
 120         1, 1, 1, 1, 1, 1, 1, 1,
 121         1, 1, 1, 1, 1, 1, 1, 1,
 122         1, 1, 1, 1, 1, 1, 1, 1,
 123         1, 1, 1, 1, 1, 1, 1, 1,
 124         1, 1, 1, 1, 1, 1, 1, 1,
 125         1, 1, 1, 1, 13, 1, 12, 12,
 126         12, 12, 12, 1, 1, 1, 1, 1,
 127         1, 1, 1, 1, 1, 1, 1, 1,
 128         1, 1, 1, 1, 1, 12, 1, 1,
 129         1, 1, 1, 1, 1, 1, 1, 1,
 130         1, 1, 1, 1, 1, 14, 14, 14,
 131         14, 14, 14, 14, 14, 14, 14, 1,
 132         1, 1, 1, 1, 1, 1, 1, 1,
 133         1, 1, 1, 1, 1, 1, 1, 1,
 134         1, 1, 1, 1, 1, 1, 1, 1,
 135         1, 1, 1, 1, 1, 1, 1, 1,
 136         1, 1, 1, 1, 1, 1, 1, 1,
 137         1, 1, 1, 1, 1, 1, 1, 1,
 138         1, 1, 1, 1, 1, 1, 1, 1,
 139         1, 1, 1, 1, 1, 1, 1, 1,
 140         1, 13, 1, 0
 141 };
 142
 143 static const char _deserialize_text_unicode_trans_targs[] = {
 144         1, 0, 2, 3, 5, 7, 8, 6,
 145         5, 4, 1, 6, 6, 1, 8
 146 };
 147
 148 static const char _deserialize_text_unicode_trans_actions[] = {
 149         0, 0, 1, 0, 2, 2, 2, 3,
 150         0, 4, 3, 0, 5, 5, 0
 151 };
 152
 153 static const char _deserialize_text_unicode_eof_actions[] = {
 154         0, 0, 0, 0, 0, 3, 0, 5,
 155         5
 156 };
 157
 158 static const int deserialize_text_unicode_start = 1;
 159 static const int deserialize_text_unicode_first_final = 5;
 160 static const int deserialize_text_unicode_error = 0;
 161
 162 static const int deserialize_text_unicode_en_main = 1;
 163
 164
 165 #line 79 "hb-buffer-deserialize-text-unicode.rl"
 166
 167
 168 static hb_bool_t
 169 _hb_buffer_deserialize_text_unicode (hb_buffer_t *buffer,
 170                                      const char *buf,
 171                                      unsigned int buf_len,
 172                                      const char **end_ptr,
 173                                      hb_font_t *font)
 174 {
 175   const char *p = buf, *pe = buf + buf_len, *eof = pe, *orig_pe = pe;
 176
 177   while (p < pe && ISSPACE (*p))
 178     p++;
 179   if (p < pe && *p == (buffer->len ? '|' : '<'))
 180     *end_ptr = ++p;
 181
 182   const char *end = strchr ((char *) p, '>');
 183   if (end)
 184     pe = eof = end;
 185   else
 186   {
 187     end = strrchr ((char *) p, '|');
 188     if (end)
 189       pe = eof = end;
 190     else
 191       pe = eof = p;
 192   }
 193
 194
 195   const char *tok = nullptr;
 196   int cs;
 197   hb_glyph_info_t info = {0};
 198   const hb_glyph_position_t pos = {0};
 199
 200 #line 201 "hb-buffer-deserialize-text-unicode.hh"
 201         {
 202         cs = deserialize_text_unicode_start;
 203         }
 204
 205 #line 206 "hb-buffer-deserialize-text-unicode.hh"
 206         {
 207         int _slen;
 208         int _trans;
 209         const unsigned char *_keys;
 210         const char *_inds;
 211         if ( p == pe )
 212                 goto _test_eof;
 213         if ( cs == 0 )
 214                 goto _out;
 215 _resume:
 216         _keys = _deserialize_text_unicode_trans_keys + (cs<<1);
 217         _inds = _deserialize_text_unicode_indicies + _deserialize_text_unicode_index_offsets[cs];
 218
 219         _slen = _deserialize_text_unicode_key_spans[cs];
 220         _trans = _inds[ _slen > 0 && _keys[0] <=(*p) &&
 221                 (*p) <= _keys[1] ?
 222                 (*p) - _keys[0] : _slen ];
 223
 224         cs = _deserialize_text_unicode_trans_targs[_trans];
 225
 226         if ( _deserialize_text_unicode_trans_actions[_trans] == 0 )
 227                 goto _again;
 228
 229         switch ( _deserialize_text_unicode_trans_actions[_trans] ) {
 230         case 1:
 231 #line 38 "hb-buffer-deserialize-text-unicode.rl"
 232         {
 233         hb_memset (&info, 0, sizeof (info));
 234 }
 235         break;
 236         case 2:
 237 #line 51 "hb-buffer-deserialize-text-unicode.rl"
 238         {
 239         tok = p;
 240 }
 241         break;
 242         case 4:
 243 #line 55 "hb-buffer-deserialize-text-unicode.rl"
 244         {if (!parse_hex (tok, p, &info.codepoint )) return false; }
 245         break;
 246         case 3:
 247 #line 55 "hb-buffer-deserialize-text-unicode.rl"
 248         {if (!parse_hex (tok, p, &info.codepoint )) return false; }
 249 #line 42 "hb-buffer-deserialize-text-unicode.rl"
 250         {
 251         buffer->add_info (info);
 252         if (unlikely (!buffer->successful))
 253           return false;
 254         if (buffer->have_positions)
 255           buffer->pos[buffer->len - 1] = pos;
 256         *end_ptr = p;
 257 }
 258         break;
 259         case 5:
 260 #line 57 "hb-buffer-deserialize-text-unicode.rl"
 261         { if (!parse_uint (tok, p, &info.cluster )) return false; }
 262 #line 42 "hb-buffer-deserialize-text-unicode.rl"
 263         {
 264         buffer->add_info (info);
 265         if (unlikely (!buffer->successful))
 266           return false;
 267         if (buffer->have_positions)
 268           buffer->pos[buffer->len - 1] = pos;
 269         *end_ptr = p;
 270 }
 271         break;
 272 #line 273 "hb-buffer-deserialize-text-unicode.hh"
 273         }
 274
 275 _again:
 276         if ( cs == 0 )
 277                 goto _out;
 278         if ( ++p != pe )
 279                 goto _resume;
 280         _test_eof: {}
 281         if ( p == eof )
 282         {
 283         switch ( _deserialize_text_unicode_eof_actions[cs] ) {
 284         case 3:
 285 #line 55 "hb-buffer-deserialize-text-unicode.rl"
 286         {if (!parse_hex (tok, p, &info.codepoint )) return false; }
 287 #line 42 "hb-buffer-deserialize-text-unicode.rl"
 288         {
 289         buffer->add_info (info);
 290         if (unlikely (!buffer->successful))
 291           return false;
 292         if (buffer->have_positions)
 293           buffer->pos[buffer->len - 1] = pos;
 294         *end_ptr = p;
 295 }
 296         break;
 297         case 5:
 298 #line 57 "hb-buffer-deserialize-text-unicode.rl"
 299         { if (!parse_uint (tok, p, &info.cluster )) return false; }
 300 #line 42 "hb-buffer-deserialize-text-unicode.rl"
 301         {
 302         buffer->add_info (info);
 303         if (unlikely (!buffer->successful))
 304           return false;
 305         if (buffer->have_positions)
 306           buffer->pos[buffer->len - 1] = pos;
 307         *end_ptr = p;
 308 }
 309         break;
 310 #line 311 "hb-buffer-deserialize-text-unicode.hh"
 311         }
 312         }
 313
 314         _out: {}
 315         }
 316
 317 #line 115 "hb-buffer-deserialize-text-unicode.rl"
 318
 319
 320   if (pe < orig_pe && *pe == '>')
 321   {
 322     pe++;
 323     if (p == pe)
 324       p++;
 325   }
 326
 327   *end_ptr = p;
 328
 329   return p == pe;
 330 }
 331
 332 #endif /* HB_BUFFER_DESERIALIZE_TEXT_UNICODE_HH */