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         for (int i = 0; i < TEX_MAX_ACCENT + 1; ++i)
  52                 kmod_list_[i] = 0;
  53 }
  54
  55
  56 Trans::~Trans()
  57 {
  58         FreeKeymap();
  59 }
  60
  61
  62 void Trans::InsertException(Trans::keyexc & exclist, char c,
  63                             string const & data, bool flag, tex_accent accent)
  64 {
  65         keyexc p = new Keyexc;
  66         p->next = exclist;
  67         p->c = c;
  68
  69         p->data = data;
  70         p->combined = flag;
  71         p->accent = accent;
  72
  73         exclist = p;
  74 }
  75
  76
  77 void Trans::FreeException(Trans::keyexc & exclist)
  78 {
  79         Trans::keyexc p = exclist;
  80         while (p) {
  81                 p = exclist->next;
  82                 delete exclist;
  83                 exclist = p;
  84         }
  85 }
  86
  87
  88 void Trans::FreeKeymap()
  89 {
  90         for (int i = 0; i < 256; ++i)
  91                 if (!keymap_[i].empty()) {
  92                         keymap_[i].erase();
  93                 }
  94         for (int i = 0; i < TEX_MAX_ACCENT + 1; ++i)
  95                 if (kmod_list_[i]) {
  96                         FreeException(kmod_list_[i]->exception_list);
  97                         delete kmod_list_[i];
  98                         kmod_list_[i] = 0;
  99                 }
 100 }
 101
 102
 103 bool Trans::IsDefined() const
 104 {
 105         return !name_.empty();
 106 }
 107
 108
 109 string const & Trans::GetName() const
 110 {
 111         return name_;
 112 }
 113
 114
 115 enum kmaptags_ {
 116         KCOMB = 1,
 117         KMOD,
 118         KMAP,
 119         KXMOD,
 120         K_LAST
 121 };
 122
 123
 124 struct keyword_item kmapTags[K_LAST - 1] = {
 125         {"\\kcomb", KCOMB },
 126         { "\\kmap", KMAP },
 127         { "\\kmod", KMOD },
 128         { "\\kxmod", KXMOD }
 129 };
 130
 131
 132 tex_accent getkeymod(string const &);
 133
 134
 135 void Trans::AddDeadkey(tex_accent accent, string const & keys,
 136                        string const & allowed)
 137 {
 138         if (kmod_list_[accent]) {
 139                 FreeException(kmod_list_[accent]->exception_list);
 140
 141                 delete kmod_list_[accent];
 142         }
 143
 144         kmod_list_[accent] = new kmod_list_decl;
 145         kmod_list_[accent]->data = keys;
 146         kmod_list_[accent]->accent = accent;
 147 #if 0
 148         if (allowed == "native") {
 149                 kmod_list_[accent]->allowed= lyx_accent_table[accent].native;
 150         } else {
 151 #endif
 152                 kmod_list_[accent]->allowed = allowed;
 153 #if 0
 154         }
 155 #endif
 156
 157         for (string::size_type i = 0; i < keys.length(); ++i) {
 158                 string & temp =
 159                         keymap_[static_cast<unsigned char>(keys[i])];
 160                 if (!temp.empty())
 161                         temp.erase();
 162
 163                 // But the question remains: "Should we be allowed
 164                 // to change bindings, without unbinding first?"
 165                 // Lgb
 166                 temp += char(0);
 167                 temp += char(accent);
 168         }
 169         kmod_list_[accent]->exception_list = 0;
 170 }
 171
 172
 173 int Trans::Load(LyXLex & lex)
 174 {
 175         bool error = false;
 176
 177         while (lex.IsOK() && !error) {
 178                 switch (lex.lex()) {
 179                 case KMOD:
 180                 {
 181                         if (lyxerr.debugging(Debug::KBMAP))
 182                                 lyxerr << "KMOD:\t" << lex.text() << endl;
 183                         if (lex.next(true)) {
 184                                 if (lyxerr.debugging(Debug::KBMAP))
 185                                         lyxerr << "key\t`" << lex.text()
 186                                                << "'" << endl;
 187                         } else
 188                                 return -1;
 189
 190                         string keys = lex.GetString();
 191
 192                         if (lex.next(true)) {
 193                                 if (lyxerr.debugging(Debug::KBMAP))
 194                                         lyxerr << "accent\t`" << lex.text()
 195                                                << "'" << endl;
 196                         } else
 197                                 return -1;
 198
 199                         tex_accent accent = getkeymod(lex.GetString());
 200
 201                         if (accent == TEX_NOACCENT)
 202                                 return -1;
 203
 204                         if (lex.next(true)) {
 205                                 if (lyxerr.debugging(Debug::KBMAP))
 206                                         lyxerr << "allowed\t`" << lex.text()
 207                                                << "'" << endl;
 208                         } else
 209                                 return -1;
 210
 211                         string allowed = lex.GetString();
 212
 213                         AddDeadkey(accent, keys, allowed);
 214                         break;
 215                 }
 216                 case KCOMB: {
 217                         string str;
 218
 219                         lyxerr[Debug::KBMAP] << "KCOMB:" << endl;
 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_1 = getkeymod(str);
 227                         if (accent_1 == TEX_NOACCENT) return -1;
 228
 229                         if (lex.next(true)) {
 230                                 str = lex.text();
 231                                 lyxerr[Debug::KBMAP] << str << endl;
 232                         } else
 233                                 return -1;
 234
 235                         tex_accent accent_2= getkeymod(str);
 236                         if (accent_2 == TEX_NOACCENT) return -1;
 237
 238                         if (kmod_list_[accent_1] == 0
 239                             || kmod_list_[accent_2] == 0)
 240                                 return -1;
 241
 242                         // Find what key accent_2 is on - should
 243                         // check about accent_1 also
 244                         int key = 0;
 245                         for (; key < 256; ++key) {
 246                                 if (!keymap_[key].empty()
 247                                     && keymap_[key][0] == 0
 248                                     && keymap_[key][1] == accent_2)
 249                                         break;
 250                         }
 251                         string allowed;
 252
 253                         if (lex.next()) {
 254                                 allowed = lex.GetString();
 255                                 lyxerr[Debug::KBMAP] << "allowed: "
 256                                                      << allowed << endl;
 257                         } else
 258                                 return -1;
 259
 260                         InsertException(kmod_list_[accent_1]->exception_list,
 261                                         static_cast<char>(key), allowed,
 262                                         true, accent_2);
 263                 }
 264                 break;
 265                 case KMAP: {
 266                         unsigned char key_from;
 267
 268                         if (lyxerr.debugging(Debug::KBMAP))
 269                                 lyxerr << "KMAP:\t" << lex.text() << endl;
 270                         if (lex.next(true)) {
 271                                 key_from = lex.text()[0];
 272                                 if (lyxerr.debugging(Debug::KBMAP))
 273                                         lyxerr << "\t`" << lex.text() << "'"
 274                                                << endl;
 275                         } else
 276                                 return -1;
 277
 278                         if (lex.next(true)) {
 279                                 string string_to = lex.text();
 280                                 //char * string_to =
 281                                 //      strcpy(new char[strlen(t)+1], t);
 282                                 keymap_[key_from] = string_to;
 283                                 if (lyxerr.debugging(Debug::KBMAP))
 284                                         lyxerr << "\t`" << string_to << "'"
 285                                                << endl;
 286                         } else
 287                                 return -1;
 288
 289                         break;
 290                 }
 291                 case KXMOD: {
 292                         tex_accent accent;
 293                         char key;
 294                         string str;
 295
 296                         if (lyxerr.debugging(Debug::KBMAP))
 297                                 lyxerr << "KXMOD:\t" << lex.text() << endl;
 298                         if (lex.next(true)) {
 299                                 if (lyxerr.debugging(Debug::KBMAP))
 300                                         lyxerr << "\t`" << lex.text() << "'"
 301                                                << endl;
 302                                 accent = getkeymod(lex.GetString());
 303                         } else
 304                                 return -1;
 305
 306                         if (lex.next(true)) {
 307                                 if (lyxerr.debugging(Debug::KBMAP))
 308                                         lyxerr << "\t`" << lex.text() << "'"
 309                                                << endl;
 310                                 key = lex.text()[0];
 311                         } else
 312                                 return -1;
 313
 314                         if (lex.next(true)) {
 315                                 if (lyxerr.debugging(Debug::KBMAP))
 316                                         lyxerr << "\t`" << lex.text() << "'"
 317                                                << endl;
 318                                 str = lex.text();
 319                         } else
 320                                 return -1;
 321
 322                         InsertException(kmod_list_[accent]->exception_list,
 323                                         key, str);
 324                         break;
 325                 }
 326                 case LyXLex::LEX_FEOF:
 327                         lyxerr[Debug::PARSER] << "End of parsing" << endl;
 328                         break;
 329                 default:
 330                         lex.printError("ParseKeymapFile: "
 331                                        "Unknown tag: `$$Token'");
 332                         return -1;
 333                 }
 334         }
 335         return 0;
 336 }
 337
 338
 339 bool Trans::isAccentDefined(tex_accent accent, KmodInfo & i) const
 340 {
 341         if (kmod_list_[accent] != 0) {
 342                 i = *kmod_list_[accent];
 343                 return true;
 344         }
 345         return false;
 346 }
 347
 348
 349 string const Trans::process(char c, TransManager & k)
 350 {
 351         //string dummy("?");
 352         //string dt = dummy;
 353         string dt("?");
 354         string const t = Match(static_cast<unsigned char>(c));
 355
 356         if (t.empty() && c != 0) {
 357                 dt[0] = c;
 358                 return k.normalkey(c, dt);
 359         } else if (!t.empty() && t[0] != char(0)) {
 360                 dt = t;
 361                 return k.normalkey(c, dt);
 362         } else {
 363                 return k.deadkey(c,
 364                                  *kmod_list_[static_cast<tex_accent>(t[1])]);
 365         }
 366 }
 367
 368
 369 int Trans::Load(string const & language)
 370 {
 371         string const filename = LibFileSearch("kbd", language, "kmap");
 372         if (filename.empty())
 373                 return -1;
 374
 375         FreeKeymap();
 376         LyXLex lex(kmapTags, K_LAST-1);
 377         lex.setFile(filename);
 378
 379         int const res = Load(lex);
 380
 381         if (res == 0) {
 382                 name_ = language;
 383         } else
 384                 name_.erase();
 385
 386         return res;
 387 }
 388
 389
 390 tex_accent getkeymod(string const & p)
 391         /* return modifier - decoded from p and update p */
 392 {
 393         for (int i = 1; i <= TEX_MAX_ACCENT; ++i) {
 394                 if (lyxerr.debugging(Debug::KBMAP))
 395                         lyxerr << "p = " << p
 396                                << ", lyx_accent_table[" << i
 397                                << "].name = `" << lyx_accent_table[i].name
 398                                << "'" << endl;
 399
 400                 if (lyx_accent_table[i].name
 401                      && contains(p, lyx_accent_table[i].name)) {
 402                         lyxerr[Debug::KBMAP] << "Found it!" << endl;
 403                         return static_cast<tex_accent>(i);
 404                 }
 405         }
 406         return TEX_NOACCENT;
 407 }