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 (allowed == "native") {
 148                 kmod_list_[accent]->allowed= lyx_accent_table[accent].native;
 149         } else {
 150                 kmod_list_[accent]->allowed = allowed;
 151         }
 152
 153         for (string::size_type i = 0; i < keys.length(); ++i) {
 154                 string & temp =
 155                         keymap_[static_cast<unsigned char>(keys[i])];
 156                 if (!temp.empty())
 157                         temp.erase();
 158
 159                 // But the question remains: "Should we be allowed
 160                 // to change bindings, without unbinding first?"
 161                 // Lgb
 162                 temp += char(0);
 163                 temp += char(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                         string 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].empty()
 243                                     && keymap_[key][0] == 0
 244                                     && keymap_[key][1] == accent_2)
 245                                         break;
 246                         }
 247                         string allowed;
 248
 249                         if (lex.next()) {
 250                                 allowed = lex.GetString();
 251                                 lyxerr[Debug::KBMAP] << "allowed: "
 252                                                      << allowed << endl;
 253                         } else
 254                                 return -1;
 255
 256                         InsertException(kmod_list_[accent_1]->exception_list,
 257                                         static_cast<char>(key), allowed,
 258                                         true, accent_2);
 259                 }
 260                 break;
 261                 case KMAP: {
 262                         unsigned char key_from;
 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                                 string string_to = lex.text();
 276                                 //char * string_to =
 277                                 //      strcpy(new char[strlen(t)+1], t);
 278                                 keymap_[key_from] = string_to;
 279                                 if (lyxerr.debugging(Debug::KBMAP))
 280                                         lyxerr << "\t`" << string_to << "'"
 281                                                << endl;
 282                         } else
 283                                 return -1;
 284
 285                         break;
 286                 }
 287                 case KXMOD: {
 288                         tex_accent accent;
 289                         char key;
 290                         string str;
 291
 292                         if (lyxerr.debugging(Debug::KBMAP))
 293                                 lyxerr << "KXMOD:\t" << lex.text() << endl;
 294                         if (lex.next(true)) {
 295                                 if (lyxerr.debugging(Debug::KBMAP))
 296                                         lyxerr << "\t`" << lex.text() << "'"
 297                                                << endl;
 298                                 accent = getkeymod(lex.GetString());
 299                         } else
 300                                 return -1;
 301
 302                         if (lex.next(true)) {
 303                                 if (lyxerr.debugging(Debug::KBMAP))
 304                                         lyxerr << "\t`" << lex.text() << "'"
 305                                                << endl;
 306                                 key = lex.text()[0];
 307                         } else
 308                                 return -1;
 309
 310                         if (lex.next(true)) {
 311                                 if (lyxerr.debugging(Debug::KBMAP))
 312                                         lyxerr << "\t`" << lex.text() << "'"
 313                                                << endl;
 314                                 str = lex.text();
 315                         } else
 316                                 return -1;
 317
 318                         InsertException(kmod_list_[accent]->exception_list,
 319                                         key, str);
 320                         break;
 321                 }
 322                 case LyXLex::LEX_FEOF:
 323                         lyxerr[Debug::PARSER] << "End of parsing" << endl;
 324                         break;
 325                 default:
 326                         lex.printError("ParseKeymapFile: "
 327                                        "Unknown tag: `$$Token'");
 328                         return -1;
 329                 }
 330         }
 331         return 0;
 332 }
 333
 334
 335 bool Trans::isAccentDefined(tex_accent accent, KmodInfo & i) const
 336 {
 337         if (kmod_list_[accent] != 0) {
 338                 i = *kmod_list_[accent];
 339                 return true;
 340         }
 341         return false;
 342 }
 343
 344
 345 string const Trans::process(char c, TransManager & k)
 346 {
 347         string dummy("?");
 348         string dt = dummy;
 349         string const t = Match(static_cast<unsigned char>(c));
 350
 351         if (t.empty() && c != 0) {
 352                 dt[0] = c;
 353                 return k.normalkey(c, dt);
 354         } else if (!t.empty() && t[0] != char(0)) {
 355                 dt = t;
 356                 return k.normalkey(c, dt);
 357         } else {
 358                 return k.deadkey(c,
 359                                  *kmod_list_[static_cast<tex_accent>(t[1])]);
 360         }
 361 }
 362
 363
 364 int Trans::Load(string const & language)
 365 {
 366         string const filename = LibFileSearch("kbd", language, "kmap");
 367         if (filename.empty())
 368                 return -1;
 369
 370         FreeKeymap();
 371         LyXLex lex(kmapTags, K_LAST-1);
 372         lex.setFile(filename);
 373
 374         int const res = Load(lex);
 375
 376         if (res == 0) {
 377                 name_ = language;
 378         } else
 379                 name_.erase();
 380
 381         return res;
 382 }
 383
 384
 385 tex_accent getkeymod(string const & p)
 386         /* return modifier - decoded from p and update p */
 387 {
 388         for (int i = 1; i <= TEX_MAX_ACCENT; ++i) {
 389                 if (lyxerr.debugging(Debug::KBMAP))
 390                         lyxerr << "p = " << p
 391                                << ", lyx_accent_table[" << i
 392                                << "].name = `" << lyx_accent_table[i].name
 393                                << "'" << endl;
 394
 395                 if (lyx_accent_table[i].name
 396                      && contains(p, lyx_accent_table[i].name)) {
 397                         lyxerr[Debug::KBMAP] << "Found it!" << endl;
 398                         return static_cast<tex_accent>(i);
 399                 }
 400         }
 401         return TEX_NOACCENT;
 402 }