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 #if 0
  39 string const DefaultTrans::process(char c, TransManager & k)
  40 {
  41         char dummy[2] = "?";
  42         dummy[0] = c;
  43
  44         return k.normalkey(c, dummy);
  45 }
  46 #else
  47 string const DefaultTrans::process(char c, TransManager & k)
  48 {
  49         return k.normalkey(c);
  50 }
  51 #endif
  52
  53
  54 // Trans class
  55
  56 Trans::Trans()
  57 {
  58         for (int i = 0; i < TEX_MAX_ACCENT + 1; ++i)
  59                 kmod_list_[i] = 0;
  60 }
  61
  62
  63 Trans::~Trans()
  64 {
  65         FreeKeymap();
  66 }
  67
  68
  69 void Trans::InsertException(Trans::keyexc & exclist, char c,
  70                             string const & data, bool flag, tex_accent accent)
  71 {
  72         keyexc p = new Keyexc;
  73         p->next = exclist;
  74         p->c = c;
  75
  76         p->data = data;
  77         p->combined = flag;
  78         p->accent = accent;
  79
  80         exclist = p;
  81 }
  82
  83
  84 void Trans::FreeException(Trans::keyexc & exclist)
  85 {
  86         Trans::keyexc p = exclist;
  87         while (p) {
  88                 p = exclist->next;
  89                 delete exclist;
  90                 exclist = p;
  91         }
  92 }
  93
  94
  95 void Trans::FreeKeymap()
  96 {
  97         for (int i = 0; i < 256; ++i)
  98                 if (!keymap_[i].empty()) {
  99                         keymap_[i].erase();
 100                 }
 101         for (int i = 0; i < TEX_MAX_ACCENT + 1; ++i)
 102                 if (kmod_list_[i]) {
 103                         FreeException(kmod_list_[i]->exception_list);
 104                         delete kmod_list_[i];
 105                         kmod_list_[i] = 0;
 106                 }
 107 }
 108
 109
 110 bool Trans::IsDefined() const
 111 {
 112         return !name_.empty();
 113 }
 114
 115
 116 string const & Trans::GetName() const
 117 {
 118         return name_;
 119 }
 120
 121
 122 enum kmaptags_ {
 123         KCOMB = 1,
 124         KMOD,
 125         KMAP,
 126         KXMOD,
 127         K_LAST
 128 };
 129
 130
 131 struct keyword_item kmapTags[K_LAST - 1] = {
 132         {"\\kcomb", KCOMB },
 133         { "\\kmap", KMAP },
 134         { "\\kmod", KMOD },
 135         { "\\kxmod", KXMOD }
 136 };
 137
 138
 139 tex_accent getkeymod(string const &);
 140
 141
 142 void Trans::AddDeadkey(tex_accent accent, string const & keys,
 143                        string const & allowed)
 144 {
 145         if (kmod_list_[accent]) {
 146                 FreeException(kmod_list_[accent]->exception_list);
 147
 148                 delete kmod_list_[accent];
 149         }
 150
 151         kmod_list_[accent] = new kmod_list_decl;
 152         kmod_list_[accent]->data = keys;
 153         kmod_list_[accent]->accent = accent;
 154 #if 0
 155         if (allowed == "native") {
 156                 kmod_list_[accent]->allowed= lyx_accent_table[accent].native;
 157         } else {
 158 #endif
 159                 kmod_list_[accent]->allowed = allowed;
 160 #if 0
 161         }
 162 #endif
 163
 164         for (string::size_type i = 0; i < keys.length(); ++i) {
 165                 string & temp =
 166                         keymap_[static_cast<unsigned char>(keys[i])];
 167                 if (!temp.empty())
 168                         temp.erase();
 169
 170                 // But the question remains: "Should we be allowed
 171                 // to change bindings, without unbinding first?"
 172                 // Lgb
 173                 temp += char(0);
 174                 temp += char(accent);
 175         }
 176         kmod_list_[accent]->exception_list = 0;
 177 }
 178
 179
 180 int Trans::Load(LyXLex & lex)
 181 {
 182         bool error = false;
 183
 184         while (lex.IsOK() && !error) {
 185                 switch (lex.lex()) {
 186                 case KMOD:
 187                 {
 188                         if (lyxerr.debugging(Debug::KBMAP))
 189                                 lyxerr << "KMOD:\t" << lex.text() << endl;
 190                         if (lex.next(true)) {
 191                                 if (lyxerr.debugging(Debug::KBMAP))
 192                                         lyxerr << "key\t`" << lex.text()
 193                                                << "'" << endl;
 194                         } else
 195                                 return -1;
 196
 197                         string keys = lex.GetString();
 198
 199                         if (lex.next(true)) {
 200                                 if (lyxerr.debugging(Debug::KBMAP))
 201                                         lyxerr << "accent\t`" << lex.text()
 202                                                << "'" << endl;
 203                         } else
 204                                 return -1;
 205
 206                         tex_accent accent = getkeymod(lex.GetString());
 207
 208                         if (accent == TEX_NOACCENT)
 209                                 return -1;
 210
 211                         if (lex.next(true)) {
 212                                 if (lyxerr.debugging(Debug::KBMAP))
 213                                         lyxerr << "allowed\t`" << lex.text()
 214                                                << "'" << endl;
 215                         } else
 216                                 return -1;
 217
 218                         string allowed = lex.GetString();
 219
 220                         AddDeadkey(accent, keys, allowed);
 221                         break;
 222                 }
 223                 case KCOMB: {
 224                         string str;
 225
 226                         lyxerr[Debug::KBMAP] << "KCOMB:" << endl;
 227                         if (lex.next(true)) {
 228                                 str= lex.text();
 229                                 lyxerr[Debug::KBMAP] << str << endl;
 230                         } else
 231                                 return -1;
 232
 233                         tex_accent accent_1 = getkeymod(str);
 234                         if (accent_1 == TEX_NOACCENT) return -1;
 235
 236                         if (lex.next(true)) {
 237                                 str = lex.text();
 238                                 lyxerr[Debug::KBMAP] << str << endl;
 239                         } else
 240                                 return -1;
 241
 242                         tex_accent accent_2= getkeymod(str);
 243                         if (accent_2 == TEX_NOACCENT) return -1;
 244
 245                         if (kmod_list_[accent_1] == 0
 246                             || kmod_list_[accent_2] == 0)
 247                                 return -1;
 248
 249                         // Find what key accent_2 is on - should
 250                         // check about accent_1 also
 251                         int key = 0;
 252                         for (; key < 256; ++key) {
 253                                 if (!keymap_[key].empty()
 254                                     && keymap_[key][0] == 0
 255                                     && keymap_[key][1] == accent_2)
 256                                         break;
 257                         }
 258                         string allowed;
 259
 260                         if (lex.next()) {
 261                                 allowed = lex.GetString();
 262                                 lyxerr[Debug::KBMAP] << "allowed: "
 263                                                      << allowed << endl;
 264                         } else
 265                                 return -1;
 266
 267                         InsertException(kmod_list_[accent_1]->exception_list,
 268                                         static_cast<char>(key), allowed,
 269                                         true, accent_2);
 270                 }
 271                 break;
 272                 case KMAP: {
 273                         unsigned char key_from;
 274
 275                         if (lyxerr.debugging(Debug::KBMAP))
 276                                 lyxerr << "KMAP:\t" << lex.text() << endl;
 277                         if (lex.next(true)) {
 278                                 key_from = lex.text()[0];
 279                                 if (lyxerr.debugging(Debug::KBMAP))
 280                                         lyxerr << "\t`" << lex.text() << "'"
 281                                                << endl;
 282                         } else
 283                                 return -1;
 284
 285                         if (lex.next(true)) {
 286                                 string string_to = lex.text();
 287                                 //char * string_to =
 288                                 //      strcpy(new char[strlen(t)+1], t);
 289                                 keymap_[key_from] = string_to;
 290                                 if (lyxerr.debugging(Debug::KBMAP))
 291                                         lyxerr << "\t`" << string_to << "'"
 292                                                << endl;
 293                         } else
 294                                 return -1;
 295
 296                         break;
 297                 }
 298                 case KXMOD: {
 299                         tex_accent accent;
 300                         char key;
 301                         string str;
 302
 303                         if (lyxerr.debugging(Debug::KBMAP))
 304                                 lyxerr << "KXMOD:\t" << lex.text() << endl;
 305                         if (lex.next(true)) {
 306                                 if (lyxerr.debugging(Debug::KBMAP))
 307                                         lyxerr << "\t`" << lex.text() << "'"
 308                                                << endl;
 309                                 accent = getkeymod(lex.GetString());
 310                         } else
 311                                 return -1;
 312
 313                         if (lex.next(true)) {
 314                                 if (lyxerr.debugging(Debug::KBMAP))
 315                                         lyxerr << "\t`" << lex.text() << "'"
 316                                                << endl;
 317                                 key = lex.text()[0];
 318                         } else
 319                                 return -1;
 320
 321                         if (lex.next(true)) {
 322                                 if (lyxerr.debugging(Debug::KBMAP))
 323                                         lyxerr << "\t`" << lex.text() << "'"
 324                                                << endl;
 325                                 str = lex.text();
 326                         } else
 327                                 return -1;
 328
 329                         InsertException(kmod_list_[accent]->exception_list,
 330                                         key, str);
 331                         break;
 332                 }
 333                 case LyXLex::LEX_FEOF:
 334                         lyxerr[Debug::PARSER] << "End of parsing" << endl;
 335                         break;
 336                 default:
 337                         lex.printError("ParseKeymapFile: "
 338                                        "Unknown tag: `$$Token'");
 339                         return -1;
 340                 }
 341         }
 342         return 0;
 343 }
 344
 345
 346 bool Trans::isAccentDefined(tex_accent accent, KmodInfo & i) const
 347 {
 348         if (kmod_list_[accent] != 0) {
 349                 i = *kmod_list_[accent];
 350                 return true;
 351         }
 352         return false;
 353 }
 354
 355
 356 #if 0
 357 string const Trans::process(char c, TransManager & k)
 358 {
 359         string dt("?");
 360         string const t = Match(static_cast<unsigned char>(c));
 361
 362         if (t.empty() && c != 0) {
 363                 dt[0] = c;
 364                 return k.normalkey(c, dt);
 365         } else if (!t.empty() && t[0] != char(0)) {
 366                 dt = t;
 367                 return k.normalkey(c, dt);
 368         } else {
 369                 return k.deadkey(c,
 370                                  *kmod_list_[static_cast<tex_accent>(t[1])]);
 371         }
 372 }
 373 #else
 374 string const Trans::process(char c, TransManager & k)
 375 {
 376         string const t = Match(static_cast<unsigned char>(c));
 377
 378         if (t.empty() && c != 0) {
 379                 return k.normalkey(c);
 380         } else if (!t.empty() && t[0] != char(0)) {
 381                 return k.normalkey(c);
 382         } else {
 383                 return k.deadkey(c,
 384                                  *kmod_list_[static_cast<tex_accent>(t[1])]);
 385         }
 386 }
 387 #endif
 388
 389
 390 int Trans::Load(string const & language)
 391 {
 392         string const filename = LibFileSearch("kbd", language, "kmap");
 393         if (filename.empty())
 394                 return -1;
 395
 396         FreeKeymap();
 397         LyXLex lex(kmapTags, K_LAST-1);
 398         lex.setFile(filename);
 399
 400         int const res = Load(lex);
 401
 402         if (res == 0) {
 403                 name_ = language;
 404         } else
 405                 name_.erase();
 406
 407         return res;
 408 }
 409
 410
 411 tex_accent getkeymod(string const & p)
 412         /* return modifier - decoded from p and update p */
 413 {
 414         for (int i = 1; i <= TEX_MAX_ACCENT; ++i) {
 415                 if (lyxerr.debugging(Debug::KBMAP))
 416                         lyxerr << "p = " << p
 417                                << ", lyx_accent_table[" << i
 418                                << "].name = `" << lyx_accent_table[i].name
 419                                << "'" << endl;
 420
 421                 if (lyx_accent_table[i].name
 422                      && contains(p, lyx_accent_table[i].name)) {
 423                         lyxerr[Debug::KBMAP] << "Found it!" << endl;
 424                         return static_cast<tex_accent>(i);
 425                 }
 426         }
 427         return TEX_NOACCENT;
 428 }