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 const temp = DoAccent(c, deadkey2_info_.accent);
 164                 res = DoAccent(temp, deadkey_info_.accent);
 165                 currentState = init_state_;
 166         } else {
 167                 // Not allowed. Output deadkey1 and check deadkey2 + c
 168                 if (deadkey_ != 0)
 169                         res += deadkey_;
 170                 res += TOKEN_SEP;
 171                 deadkey_ = deadkey2_;
 172                 deadkey_info_ = deadkey2_info_;
 173                 // Call deadkey state and leave it to setup the FSM
 174                 res += deadkey_state_->normalkey(c, trans);
 175         }
 176         return res;
 177 }
 178
 179
 180 string const TransCombinedState::deadkey(char c, KmodInfo d)
 181 {
 182         // Third key in a row. Output the first one and
 183         // reenter with shifted deadkeys
 184         string res;
 185         if (deadkey_ != 0)
 186                 res = deadkey_;
 187         res += TOKEN_SEP;
 188         deadkey_ = deadkey2_;
 189         deadkey_info_ = deadkey2_info_;
 190         res += deadkey_state_->deadkey(c, d);
 191         return res;
 192 }
 193
 194
 195 // TransFSM
 196 TransFSM::TransFSM():
 197         TransFSMData(),
 198         TransInitState(),
 199         TransDeadkeyState(),
 200         TransCombinedState()
 201 {
 202         currentState = init_state_;
 203 }
 204
 205
 206 // TransManager
 207
 208 // Initialize static member.
 209 Trans TransManager::default_;
 210
 211
 212 TransManager::TransManager()
 213         : active_(0), t1_(new Trans), t2_(new Trans)
 214 {}
 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(string const & str)
 243 {
 244         return chset_.loadFile(str);
 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         string::size_type const l = str.length();
 289
 290         for (string::size_type 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 const res = trans_fsm_
 336                                 .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 }