src/trans.C

   1 #include <config.h>
   2
   3 #ifdef __GNUG__
   4 #pragma implementation "trans.h"
   5 #endif
   6
   7 #include "LyXView.h"
   8 #include "trans.h"
   9 #include "support/filetools.h"
  10 #include "tex-strings.h"
  11 #include "lyxlex.h"
  12 #include "debug.h"
  13 #include "trans_mgr.h"
  14
  15 using std::endl;
  16
  17
  18 // KmodInfo
  19 KmodInfo::KmodInfo()
  20 {
  21         exception_list = 0;
  22 }
  23
  24
  25 // Default Trans
  26 bool DefaultTrans::init_ = false;
  27
  28
  29 DefaultTrans::DefaultTrans()
  30 {
  31         if (init_ == false) {
  32                 // Do initialization
  33                 init_ = true;
  34         }
  35 }
  36
  37
  38 string const DefaultTrans::process(char c, TransManager & k)
  39 {
  40         char dummy[2] = "?";
  41         dummy[0] = c;
  42
  43         return k.normalkey(c, dummy);
  44 }
  45
  46
  47 // Trans class
  48
  49 Trans::Trans()
  50 {
  51         int i = 0;
  52         for(i = 0; i < TEX_MAX_ACCENT + 1; ++i)
  53                 kmod_list_[i] = 0;
  54 }
  55
  56
  57 Trans::~Trans()
  58 {
  59         FreeKeymap();
  60 }
  61
  62
  63 void Trans::InsertException(Trans::keyexc & exclist, char c,
  64                             string const & data, bool flag, tex_accent accent)
  65 {
  66         keyexc p = new Keyexc;
  67         p->next = exclist;
  68         p->c = c;
  69
  70         p->data = data;
  71         p->combined = flag;
  72         p->accent = accent;
  73
  74         exclist = p;
  75 }
  76
  77
  78 void Trans::FreeException(Trans::keyexc & exclist)
  79 {
  80         Trans::keyexc p = exclist;
  81         while (p) {
  82                 p = exclist->next;
  83                 delete exclist;
  84                 exclist = p;
  85         }
  86 }
  87
  88
  89 void Trans::FreeKeymap()
  90 {
  91         for(int i = 0; i < 256; ++i)
  92                 if (!keymap_[i].empty()) {
  93                         //delete keymap_[i];
  94                         keymap_[i].erase();
  95                 }
  96         for(int i = 0; i < TEX_MAX_ACCENT + 1; ++i)
  97                 if (kmod_list_[i]) {
  98                         FreeException(kmod_list_[i]->exception_list);
  99                         delete kmod_list_[i];
 100                         kmod_list_[i] = 0;
 101                 }
 102 }
 103
 104
 105 bool Trans::IsDefined() const
 106 {
 107         return !name_.empty();
 108 }
 109
 110
 111 string const & Trans::GetName() const
 112 {
 113         return name_;
 114 }
 115
 116
 117 enum _kmaptags {
 118         KCOMB = 1,
 119         KMOD,
 120         KMAP,
 121         KXMOD,
 122         K_LAST
 123 };
 124
 125
 126 struct keyword_item kmapTags[K_LAST - 1] = {
 127         {"\\kcomb", KCOMB },
 128         { "\\kmap", KMAP },
 129         { "\\kmod", KMOD },
 130         { "\\kxmod", KXMOD }
 131 };
 132
 133
 134 tex_accent getkeymod(string const &);
 135
 136
 137 void Trans::AddDeadkey(tex_accent accent, string const & keys,
 138                        string const & allowed)
 139 {
 140         if (kmod_list_[accent]) {
 141                 FreeException(kmod_list_[accent]->exception_list);
 142
 143                 delete kmod_list_[accent];
 144         }
 145
 146         kmod_list_[accent] = new kmod_list_decl;
 147         kmod_list_[accent]->data = keys;
 148         kmod_list_[accent]->accent = accent;
 149         if (allowed == "native") {
 150                 kmod_list_[accent]->allowed= lyx_accent_table[accent].native;
 151         } else {
 152                 kmod_list_[accent]->allowed = allowed;
 153         }
 154
 155         for(string::size_type i = 0; i < keys.length(); ++i) {
 156                 string * temp =
 157                         &keymap_[static_cast<unsigned char>(keys[i])];
 158                 (*temp)[0] = 0; (*temp)[1] = accent;
 159         }
 160         kmod_list_[accent]->exception_list = 0;
 161 }
 162
 163
 164 int Trans::Load(LyXLex & lex)
 165 {
 166         bool error = false;
 167
 168         while (lex.IsOK() && !error) {
 169                 switch(lex.lex()) {
 170                 case KMOD:
 171                 {
 172                         if (lyxerr.debugging(Debug::KBMAP))
 173                                 lyxerr << "KMOD:\t" << lex.text() << endl;
 174                         if (lex.next(true)) {
 175                                 if (lyxerr.debugging(Debug::KBMAP))
 176                                         lyxerr << "key\t`" << lex.text()
 177                                                << "'" << endl;
 178                         } else
 179                                 return -1;
 180
 181                         string keys = lex.GetString();
 182
 183                         if (lex.next(true)) {
 184                                 if ( lyxerr.debugging(Debug::KBMAP))
 185                                         lyxerr << "accent\t`" << lex.text()
 186                                                << "'" << endl;
 187                         } else
 188                                 return -1;
 189
 190                         tex_accent accent = getkeymod(lex.GetString());
 191
 192                         if (accent == TEX_NOACCENT)
 193                                 return -1;
 194
 195                         if (lex.next(true)) {
 196                                 if (lyxerr.debugging(Debug::KBMAP))
 197                                         lyxerr << "allowed\t`" << lex.text()
 198                                                << "'" << endl;
 199                         } else
 200                                 return -1;
 201
 202                         string allowed = lex.GetString();
 203
 204                         AddDeadkey(accent, keys, allowed);
 205                         break;
 206                 }
 207                 case KCOMB: {
 208                         string str;
 209
 210                         lyxerr[Debug::KBMAP] << "KCOMB:" << endl;
 211                         if (lex.next(true)) {
 212                                 str= lex.text();
 213                                 lyxerr[Debug::KBMAP] << str << endl;
 214                         } else
 215                                 return -1;
 216
 217                         tex_accent accent_1 = getkeymod(str);
 218                         if (accent_1 == TEX_NOACCENT) return -1;
 219
 220                         if (lex.next(true)) {
 221                                 str = lex.text();
 222                                 lyxerr[Debug::KBMAP] << str << endl;
 223                         } else
 224                                 return -1;
 225
 226                         tex_accent accent_2= getkeymod(str);
 227                         if (accent_2 == TEX_NOACCENT) return -1;
 228
 229                         if (kmod_list_[accent_1] == 0
 230                             || kmod_list_[accent_2] == 0)
 231                                 return -1;
 232
 233                         // Find what key accent_2 is on - should
 234                         // check about accent_1 also
 235                         int key = 0;
 236                         for(; key < 256; ++key) {
 237                                 if (!keymap_[key].empty()
 238                                     && keymap_[key][0] == 0
 239                                     && keymap_[key][1] == accent_2)
 240                                         break;
 241                         }
 242                         string allowed;
 243
 244                         if (lex.next()) {
 245                                 allowed = lex.GetString();
 246                                 lyxerr[Debug::KBMAP] << "allowed: "
 247                                                      << allowed << endl;
 248                         } else
 249                                 return -1;
 250
 251                         InsertException(kmod_list_[accent_1]->exception_list,
 252                                         static_cast<char>(key), allowed,
 253                                         true, accent_2);
 254                 }
 255                 break;
 256                 case KMAP: {
 257                         unsigned char key_from;
 258
 259                         if (lyxerr.debugging(Debug::KBMAP))
 260                                 lyxerr << "KMAP:\t" << lex.text() << endl;
 261                         if (lex.next(true)) {
 262                                 key_from = lex.text()[0];
 263                                 if (lyxerr.debugging(Debug::KBMAP))
 264                                         lyxerr << "\t`" << lex.text() << "'"
 265                                                << endl;
 266                         } else
 267                                 return -1;
 268
 269                         if (lex.next(true)) {
 270                                 string string_to = lex.text();
 271                                 //char * string_to =
 272                                 //      strcpy(new char[strlen(t)+1], t);
 273                                 keymap_[key_from] = string_to;
 274                                 if (lyxerr.debugging(Debug::KBMAP))
 275                                         lyxerr << "\t`" << string_to << "'"
 276                                                << endl;
 277                         } else
 278                                 return -1;
 279
 280                         break;
 281                 }
 282                 case KXMOD: {
 283                         tex_accent accent;
 284                         char key;
 285                         string str;
 286
 287                         if (lyxerr.debugging(Debug::KBMAP))
 288                                 lyxerr << "KXMOD:\t" << lex.text() << endl;
 289                         if (lex.next(true)) {
 290                                 if (lyxerr.debugging(Debug::KBMAP))
 291                                         lyxerr << "\t`" << lex.text() << "'"
 292                                                << endl;
 293                                 accent = getkeymod(lex.GetString());
 294                         } else
 295                                 return -1;
 296
 297                         if (lex.next(true)) {
 298                                 if (lyxerr.debugging(Debug::KBMAP))
 299                                         lyxerr << "\t`" << lex.text() << "'"
 300                                                << endl;
 301                                 key = lex.text()[0];
 302                         } else
 303                                 return -1;
 304
 305                         if (lex.next(true)) {
 306                                 if (lyxerr.debugging(Debug::KBMAP))
 307                                         lyxerr << "\t`" << lex.text() << "'"
 308                                                << endl;
 309                                 str = lex.text();
 310                         } else
 311                                 return -1;
 312
 313                         InsertException(kmod_list_[accent]->exception_list,
 314                                         key, str);
 315                         break;
 316                 }
 317                 case LyXLex::LEX_FEOF:
 318                         lyxerr[Debug::PARSER] << "End of parsing" << endl;
 319                         break;
 320                 default:
 321                         lex.printError("ParseKeymapFile: "
 322                                        "Unknown tag: `$$Token'");
 323                         return -1;
 324                 }
 325         }
 326         return 0;
 327 }
 328
 329
 330 bool Trans::isAccentDefined(tex_accent accent, KmodInfo & i) const
 331 {
 332         if (kmod_list_[accent] != 0) {
 333                 i = *kmod_list_[accent];
 334                 return true;
 335         }
 336         return false;
 337 }
 338
 339
 340 string const Trans::process(char c, TransManager & k)
 341 {
 342         string dummy("?");
 343         string dt = dummy;
 344         string const t = Match(static_cast<unsigned char>(c));
 345
 346         if (t.empty() && c != 0) {
 347                 dt[0] = c;
 348                 return k.normalkey(c, dt);
 349         } else if (!t.empty()) {
 350                 dt = t;
 351                 return k.normalkey(c, dt);
 352         } else {
 353                 return k.deadkey(c,
 354                                  *kmod_list_[static_cast<tex_accent>(t[1])]);
 355         }
 356 }
 357
 358
 359 int Trans::Load(string const & language)
 360 {
 361         string filename = LibFileSearch("kbd", language, "kmap");
 362         if (filename.empty())
 363                 return -1;
 364
 365         FreeKeymap();
 366         LyXLex lex(kmapTags, K_LAST-1);
 367         lex.setFile(filename);
 368
 369         int res = Load(lex);
 370
 371         if (res == 0) {
 372                 name_ = language;
 373         } else
 374                 name_.erase();
 375
 376         return res;
 377 }
 378
 379
 380 tex_accent getkeymod(string const & p)
 381         /* return modifier - decoded from p and update p */
 382 {
 383         for (int i = 1; i <= TEX_MAX_ACCENT; ++i) {
 384                 if (lyxerr.debugging(Debug::KBMAP))
 385                         lyxerr << "p = " << p
 386                                << ", lyx_accent_table[" << i
 387                                << "].name = `" << lyx_accent_table[i].name
 388                                << "'" << endl;
 389
 390                 if ( lyx_accent_table[i].name
 391                      && contains(p, lyx_accent_table[i].name)) {
 392                         lyxerr[Debug::KBMAP] << "Found it!" << endl;
 393                         return static_cast<tex_accent>(i);
 394                 }
 395         }
 396         return TEX_NOACCENT;
 397 }