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