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
  19 using std::endl;
  20 using std::pair;
  21
  22 extern string DoAccent(string const &, tex_accent);
  23 extern string DoAccent(char, tex_accent);
  24 extern BufferView * current_view;
  25
  26
  27 // TransFSMData
  28 TransFSMData::TransFSMData()
  29 {
  30         deadkey_ = deadkey2_ = 0;
  31         deadkey_info_.accent = deadkey2_info_.accent = TEX_NOACCENT;
  32         comb_info_ = 0;
  33 }
  34
  35
  36 // TransState
  37 char const TransState::TOKEN_SEP = 4;
  38
  39
  40 // TransInitState
  41 TransInitState::TransInitState()
  42 {
  43         init_state_ = this;
  44 }
  45
  46
  47 string TransInitState::normalkey(char c, char * t)
  48 {
  49         string res;
  50         if (t)  res = t;
  51         else res = c;
  52
  53         return res;
  54 }
  55
  56
  57 string TransInitState::deadkey(char c, KmodInfo d)
  58 {
  59         deadkey_ = c;
  60         deadkey_info_ = d;
  61         currentState = deadkey_state_;
  62         return string();
  63 }
  64
  65
  66 // TransDeadkeyState
  67 TransDeadkeyState::TransDeadkeyState()
  68 {
  69         deadkey_state_ = this;
  70 }
  71
  72
  73 string TransDeadkeyState::normalkey(char c, char * trans)
  74 {
  75         string res;
  76
  77         // Check if it is an exception
  78         KmodException l = deadkey_info_.exception_list;
  79         while(l != 0) {
  80                 if (l->c == c) {
  81                         res = l->data;
  82                         break;
  83                 }
  84                 l = l->next;
  85         }
  86         if (l == 0) {
  87                 // Not an exception. Check if it allowed
  88                 if (current_view->buffer()->params.allowAccents == true ||
  89                     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 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 TransCombinedState::normalkey(char c, char * 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 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 TransManager::TransManager()
 210         : active_(0), t1_(new Trans), t2_(new Trans)
 211 {}
 212
 213
 214 Trans * TransManager::default_ = new Trans;
 215
 216
 217 TransManager::~TransManager()
 218 {
 219         delete t1_;
 220         delete t2_;
 221 }
 222
 223
 224 int TransManager::SetPrimary(string const & language)
 225 {
 226         if (t1_->GetName() == language)
 227                 return 0;
 228
 229         return t1_->Load(language);
 230 }
 231
 232
 233 int TransManager::SetSecondary(string const & language)
 234 {
 235         if (t2_->GetName() == language)
 236                 return 0;
 237
 238         return t2_->Load(language);
 239 }
 240
 241
 242 bool TransManager::setCharset(char const * set)
 243 {
 244         return chset_.loadFile(set);
 245 }
 246
 247
 248 void TransManager::EnablePrimary()
 249 {
 250         if (t1_->IsDefined())
 251                 active_ = t1_;
 252
 253         lyxerr[Debug::KBMAP] << "Enabling primary keymap" << endl;
 254 }
 255
 256
 257 void TransManager::EnableSecondary()
 258 {
 259         if (t2_->IsDefined())
 260                 active_ = t2_;
 261         lyxerr[Debug::KBMAP] << "Enabling secondary keymap" << endl;
 262 }
 263
 264
 265 void TransManager::DisableKeymap()
 266 {
 267         active_ = default_;
 268         lyxerr[Debug::KBMAP] << "Disabling keymap" << endl;
 269 }
 270
 271
 272 void  TransManager::TranslateAndInsert(char c, LyXText * text)
 273 {
 274         string res = active_->process(c, *this);
 275
 276         // Process with tokens
 277         string temp;
 278
 279         while(res.length() > 0) {
 280                 res = split(res, temp, TransState::TOKEN_SEP);
 281                 insert(temp, text);
 282         }
 283 }
 284
 285
 286 void TransManager::insertVerbatim(string const & str, LyXText * text)
 287 {
 288         int l = str.length();
 289
 290         for (int i = 0; i < l; ++i){
 291                 if (str[i] == '\"'
 292                     && text->GetFont(current_view->buffer(),text->cursor.par(),
 293                                      text->cursor.pos()).latex() == LyXFont::OFF
 294                     && text->GetFont(current_view->buffer(),text->cursor.par(),
 295                                      text->cursor.pos()).language()->lang() != "hebrew")
 296                         current_view->insertCorrectQuote();
 297                 else
 298                         text->InsertChar(current_view, str[i]);
 299         }
 300 }
 301
 302
 303 void TransManager::insert(string const & str, LyXText * text)
 304 {
 305         // Go through the character encoding only if the current
 306         // encoding (chset_->name()) matches the current font_norm
 307         // (lyrxc->font_norm
 308
 309         // Is false to speak about "only if" the current encoding will
 310         // almost always be equal to font_norm.
 311         pair<bool, int> enc = chset_.encodeString(str);
 312         if (chset_.getName() != lyxrc.font_norm ||
 313             !enc.first) {
 314                 // Could not find an encoding
 315                 InsetLatexAccent ins(str);
 316                 if (ins.CanDisplay()) {
 317                         text->InsertInset(current_view, new InsetLatexAccent(ins));
 318                 } else {
 319                         insertVerbatim(str, text);
 320                 }
 321                 return;
 322         }
 323         string tmp; tmp += static_cast<char>(enc.second);
 324         insertVerbatim(tmp, text);
 325 }
 326
 327
 328 void TransManager::deadkey(char c, tex_accent accent, LyXText * t)
 329 {
 330         if (c == 0 && active_ != default_) {
 331                 // A deadkey was pressed that cannot be printed
 332                 // or a accent command was typed in the minibuffer
 333                 KmodInfo i;
 334                 if (active_->isAccentDefined(accent, i) == true) {
 335                         string res = trans_fsm_.currentState->deadkey(c, i);
 336                         insert(res, t);
 337                         return;
 338                 }
 339         }
 340
 341         if (active_ == default_ || c == 0) {
 342                 KmodInfo i;
 343                 i.accent = accent;
 344                 i.allowed = lyx_accent_table[accent].native;
 345                 i.data.erase();
 346                 i.exception_list = 0;
 347
 348                 string res = trans_fsm_.currentState->deadkey(c, i);
 349                 insert(res, t);
 350         } else {
 351                 // Go through the translation
 352                 TranslateAndInsert(c, t);
 353         }
 354 }