src/trans_mgr.C

   1 #include <config.h>
   2
   3 #ifdef __GNUG__
   4 #pragma implementation "trans_mgr.h"
   5 #endif
   6
   7 #include "trans_mgr.h"
   8 #include "trans.h"
   9 #include "lyxtext.h"
  10 #include "LString.h"
  11 #include "debug.h"
  12 #include "chset.h"
  13 #include "insets/insetlatexaccent.h"
  14 #include "BufferView.h"
  15 #include "buffer.h"
  16 #include "lyxrc.h"
  17 #include "support/lstrings.h"
  18 #include "language.h"
  19
  20 using std::endl;
  21 using std::pair;
  22
  23 extern string const DoAccent(string const &, tex_accent);
  24 extern string const DoAccent(char, tex_accent);
  25 extern BufferView * current_view;
  26
  27
  28 // TransFSMData
  29 TransFSMData::TransFSMData()
  30 {
  31         deadkey_ = deadkey2_ = 0;
  32         deadkey_info_.accent = deadkey2_info_.accent = TEX_NOACCENT;
  33         comb_info_ = 0;
  34 }
  35
  36
  37 // TransState
  38 char const TransState::TOKEN_SEP = 4;
  39
  40
  41 // TransInitState
  42 TransInitState::TransInitState()
  43 {
  44         init_state_ = this;
  45 }
  46
  47
  48 string const TransInitState::normalkey(char c, string const & t)
  49 {
  50         string res;
  51         if (!t.empty()) res = t;
  52         else res = c;
  53
  54         return res;
  55 }
  56
  57
  58 string const TransInitState::deadkey(char c, KmodInfo d)
  59 {
  60         deadkey_ = c;
  61         deadkey_info_ = d;
  62         currentState = deadkey_state_;
  63         return string();
  64 }
  65
  66
  67 // TransDeadkeyState
  68 TransDeadkeyState::TransDeadkeyState()
  69 {
  70         deadkey_state_ = this;
  71 }
  72
  73
  74 string const TransDeadkeyState::normalkey(char c, string const & trans)
  75 {
  76         string res;
  77
  78         // Check if it is an exception
  79         KmodException l = deadkey_info_.exception_list;
  80         while(l != 0) {
  81                 if (l->c == c) {
  82                         res = l->data;
  83                         break;
  84                 }
  85                 l = l->next;
  86         }
  87         if (l == 0) {
  88                 // Not an exception. Check if it allowed
  89                 if (countChar(deadkey_info_.allowed, c) > 0) {
  90                         res = DoAccent(c, deadkey_info_.accent);
  91                 } else {
  92                         // Not allowed
  93                         if (deadkey_!= 0)
  94                                 res = deadkey_;
  95                         res+= TOKEN_SEP;
  96                         res+= trans;
  97                 }
  98         }
  99         currentState = init_state_;
 100         return res;
 101 }
 102
 103
 104 string const TransDeadkeyState::deadkey(char c, KmodInfo d)
 105 {
 106         string res;
 107
 108         // Check if the same deadkey was typed twice
 109         if (deadkey_ == c) {
 110                 res = deadkey_;
 111                 deadkey_ = 0;
 112                 deadkey_info_.accent = TEX_NOACCENT;
 113                 currentState = init_state_;
 114                 return res;
 115         }
 116
 117         // Check if it is a combination or an exception
 118         KmodException l;
 119         l = deadkey_info_.exception_list;
 120
 121         while(l) {
 122                 if (l->combined == true && l->accent == d.accent) {
 123                         deadkey2_ = c;
 124                         deadkey2_info_ = d;
 125                         comb_info_ = l;
 126                         currentState = combined_state_;
 127                         return string();
 128                 }
 129                 if (l->c == c) {
 130                         res = l->data;
 131                         deadkey_ = 0;
 132                         deadkey_info_.accent = TEX_NOACCENT;
 133                         currentState = init_state_;
 134                         return res;
 135                 }
 136                 l = l->next;
 137         }
 138
 139         // Not a combination or an exception.
 140         // Output deadkey1 and keep deadkey2
 141
 142         if (deadkey_!= 0)
 143                 res = deadkey_;
 144         deadkey_ = c;
 145         deadkey_info_ = d;
 146         currentState = deadkey_state_;
 147         return res;
 148 }
 149
 150
 151 TransCombinedState::TransCombinedState()
 152 {
 153         combined_state_ = this;
 154 }
 155
 156
 157 string const TransCombinedState::normalkey(char c, string const & trans)
 158 {
 159         string res;
 160
 161         // Check if the key is allowed on the combination
 162         if (countChar(comb_info_->data, c) > 0) {
 163                 string temp;
 164                 temp = DoAccent(c, deadkey2_info_.accent);
 165                 res = DoAccent(temp, deadkey_info_.accent);
 166                 currentState = init_state_;
 167         } else {
 168                 // Not allowed. Output deadkey1 and check deadkey2 + c
 169                 if (deadkey_ != 0)
 170                         res += deadkey_;
 171                 res += TOKEN_SEP;
 172                 deadkey_ = deadkey2_;
 173                 deadkey_info_ = deadkey2_info_;
 174                 // Call deadkey state and leave it to setup the FSM
 175                 res += deadkey_state_->normalkey(c, trans);
 176         }
 177         return res;
 178 }
 179
 180
 181 string const TransCombinedState::deadkey(char c, KmodInfo d)
 182 {
 183         // Third key in a row. Output the first one and
 184         // reenter with shifted deadkeys
 185         string res;
 186         if (deadkey_ != 0)
 187                 res = deadkey_;
 188         res += TOKEN_SEP;
 189         deadkey_ = deadkey2_;
 190         deadkey_info_ = deadkey2_info_;
 191         res += deadkey_state_->deadkey(c, d);
 192         return res;
 193 }
 194
 195
 196 // TransFSM
 197 TransFSM::TransFSM():
 198         TransFSMData(),
 199         TransInitState(),
 200         TransDeadkeyState(),
 201         TransCombinedState()
 202 {
 203         currentState = init_state_;
 204 }
 205
 206
 207 // TransManager
 208
 209 // Initialize static member.
 210 Trans TransManager::default_;
 211
 212
 213 TransManager::TransManager()
 214         : active_(0), t1_(new Trans), t2_(new Trans)
 215 {}
 216
 217
 218 TransManager::~TransManager()
 219 {
 220         delete t1_;
 221         delete t2_;
 222 }
 223
 224
 225 int TransManager::SetPrimary(string const & language)
 226 {
 227         if (t1_->GetName() == language)
 228                 return 0;
 229
 230         return t1_->Load(language);
 231 }
 232
 233
 234 int TransManager::SetSecondary(string const & language)
 235 {
 236         if (t2_->GetName() == language)
 237                 return 0;
 238
 239         return t2_->Load(language);
 240 }
 241
 242
 243 bool TransManager::setCharset(string const & str)
 244 {
 245         return chset_.loadFile(str);
 246 }
 247
 248
 249 void TransManager::EnablePrimary()
 250 {
 251         if (t1_->IsDefined())
 252                 active_ = t1_;
 253
 254         lyxerr[Debug::KBMAP] << "Enabling primary keymap" << endl;
 255 }
 256
 257
 258 void TransManager::EnableSecondary()
 259 {
 260         if (t2_->IsDefined())
 261                 active_ = t2_;
 262         lyxerr[Debug::KBMAP] << "Enabling secondary keymap" << endl;
 263 }
 264
 265
 266 void TransManager::DisableKeymap()
 267 {
 268         active_ = &default_;
 269         lyxerr[Debug::KBMAP] << "Disabling keymap" << endl;
 270 }
 271
 272
 273 void  TransManager::TranslateAndInsert(char c, LyXText * text)
 274 {
 275         string res = active_->process(c, *this);
 276
 277         // Process with tokens
 278         string temp;
 279
 280         while(res.length() > 0) {
 281                 res = split(res, temp, TransState::TOKEN_SEP);
 282                 insert(temp, text);
 283         }
 284 }
 285
 286
 287 void TransManager::insertVerbatim(string const & str, LyXText * text)
 288 {
 289         string::size_type const l = str.length();
 290
 291         for (string::size_type i = 0; i < l; ++i) {
 292                 if (str[i] == '\"'
 293                     && text->GetFont(current_view->buffer(),text->cursor.par(),
 294                                      text->cursor.pos()).latex() == LyXFont::OFF
 295                     && text->GetFont(current_view->buffer(),text->cursor.par(),
 296                                      text->cursor.pos()).language()->lang() != "hebrew")
 297                         current_view->insertCorrectQuote();
 298                 else
 299                         text->InsertChar(current_view, str[i]);
 300         }
 301 }
 302
 303
 304 void TransManager::insert(string const & str, LyXText * text)
 305 {
 306         // Go through the character encoding only if the current
 307         // encoding (chset_->name()) matches the current font_norm
 308         // (lyrxc->font_norm
 309
 310         // Is false to speak about "only if" the current encoding will
 311         // almost always be equal to font_norm.
 312         pair<bool, int> enc = chset_.encodeString(str);
 313         if (chset_.getName() != lyxrc.font_norm ||
 314             !enc.first) {
 315                 // Could not find an encoding
 316                 InsetLatexAccent ins(str);
 317                 if (ins.CanDisplay()) {
 318                         text->InsertInset(current_view, new InsetLatexAccent(ins));
 319                 } else {
 320                         insertVerbatim(str, text);
 321                 }
 322                 return;
 323         }
 324         string tmp; tmp += static_cast<char>(enc.second);
 325         insertVerbatim(tmp, text);
 326 }
 327
 328
 329 void TransManager::deadkey(char c, tex_accent accent, LyXText * t)
 330 {
 331         if (c == 0 && active_ != &default_) {
 332                 // A deadkey was pressed that cannot be printed
 333                 // or a accent command was typed in the minibuffer
 334                 KmodInfo i;
 335                 if (active_->isAccentDefined(accent, i) == true) {
 336                         string res = trans_fsm_.currentState->deadkey(c, i);
 337                         insert(res, t);
 338                         return;
 339                 }
 340         }
 341
 342         if (active_ == &default_ || c == 0) {
 343                 KmodInfo i;
 344                 i.accent = accent;
 345                 i.allowed = lyx_accent_table[accent].native;
 346                 i.data.erase();
 347                 i.exception_list = 0;
 348
 349                 string res = trans_fsm_.currentState->deadkey(c, i);
 350                 insert(res, t);
 351         } else {
 352                 // Go through the translation
 353                 TranslateAndInsert(c, t);
 354         }
 355 }