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1  /*
2 *  File:        formula.C
3 *  Purpose:     Implementation of formula inset
4 *  Author:      Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
5 *  Created:     January 1996
6 *  Description: Allows the edition of math paragraphs inside Lyx.
7 *
8 *  Copyright: 1996-1998 Alejandro Aguilar Sierra
9 *
10 *  Version: 0.4, Lyx project.
11 *
12 *   You are free to use and modify this code under the terms of
13 *   the GNU General Public Licence version 2 or later.
14 */
15
16 #include <config.h>
17 #include <fstream>
18
19 #include "Lsstream.h"
20
21 #ifdef __GNUG__
22 #pragma implementation
23 #endif
24
25 #include "formula.h"
26 #include "formulamacro.h"
27 #include "commandtags.h"
28 #include "math_cursor.h"
29 #include "math_parser.h"
30 #include "BufferView.h"
31 #include "lyxtext.h"
32 #include "lyxfunc.h"
33 #include "gettext.h"
34 #include "LaTeXFeatures.h"
35 #include "debug.h"
36 #include "support/lstrings.h"
37 #include "LyXView.h"
38 #include "Painter.h"
39 #include "font.h"
40 #include "math_arrayinset.h"
41 #include "math_spaceinset.h"
42 #include "math_scopeinset.h"
43 #include "math_macrotable.h"
44 #include "support/lyxlib.h"
45 #include "mathed/support.h"
46 #include "undo_funcs.h"
47
48 using std::endl;
49 using std::ostream;
50 using std::vector;
51
52 extern char const * latex_mathenv[];
53 MathCursor        * mathcursor = 0;
54
55
56 namespace {
57
58
59 // local global
60 int sel_x;
61 int sel_y;
62 bool sel_flag;
63
64 void mathed_init_fonts();
65
66 string nicelabel(string const & label)
67 {
68         return "(" + (label.empty() ? "#" : label) + ")";
69 }
70
71 void handleFont(BufferView * bv, MathTextCodes t) 
72 {
73         if (mathcursor->selection())
74                 bv->lockedInsetStoreUndo(Undo::EDIT);
75         mathcursor->handleFont(t);
76 }
77
78
79 void handleAccent(BufferView * bv, string const & name)
80 {
81         bv->lockedInsetStoreUndo(Undo::EDIT);
82         mathcursor->handleAccent(name);
83 }
84
85
86 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
87 {
88         LyXText * lt = bv->getLyXText();
89         
90         bv->beforeChange(lt);
91         finishUndo();
92         if (!bv->insertInset(new_inset)) {
93                 delete new_inset;
94                 return false;
95         }
96         new_inset->edit(bv, 0, 0, 0);
97         return true;
98 }
99
100
101 // returns the nearest enclosing grid
102 MathArrayInset * matrixpar(int & idx)
103 {
104         idx = 0;
105         return (mathcursor ? mathcursor->enclosingArray(idx) : 0); 
106 }
107
108
109 } // namespace anon
110
111
112
113 InsetFormulaBase::InsetFormulaBase()
114 {
115 #ifdef WITH_WARNINGS
116 #warning This is needed as long the math parser is not re-entrant
117 #endif
118         MathMacroTable::builtinMacros();
119         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
120 }
121
122
123 void InsetFormulaBase::read(Buffer const *, LyXLex & lex)
124 {
125         read(lex);
126 }
127
128
129 void InsetFormulaBase::write(Buffer const *, ostream & os) const
130 {
131         write(os);
132 }
133
134
135 int InsetFormulaBase::latex(Buffer const *, ostream & os,
136         bool fragile, bool spacing) const
137 {
138         return latex(os, fragile, spacing);
139 }
140
141
142 int InsetFormulaBase::ascii(Buffer const *, ostream & os, int spacing) const
143 {
144         return ascii(os, spacing);
145 }
146
147
148 int InsetFormulaBase::linuxdoc(Buffer const *, ostream & os) const
149 {
150         return linuxdoc(os);
151 }
152
153
154 int InsetFormulaBase::docBook(Buffer const *, ostream & os) const
155 {
156         return docBook(os);
157 }
158
159
160
161 // Check if uses AMS macros
162 void InsetFormulaBase::validate(LaTeXFeatures &) const
163 {}
164
165
166 string const InsetFormulaBase::editMessage() const
167 {
168         return _("Math editor mode");
169 }
170
171
172 void InsetFormulaBase::edit(BufferView * bv, int x, int /*y*/, unsigned int)
173 {
174         mathcursor = new MathCursor(this);
175
176         if (!bv->lockInset(this))
177                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
178
179         metrics();
180         // if that is removed, we won't get the magenta box when entering an
181         // inset for the first time
182         bv->updateInset(this, false);
183         if (x == 0)
184                 mathcursor->first();
185         else
186                 mathcursor->last();
187         sel_x = 0;
188         sel_y = 0;
189         sel_flag = false;
190 }
191
192
193 void InsetFormulaBase::edit(BufferView * bv, bool front)
194 {
195         // looks hackish but seems to work
196         edit(bv, front ? 0 : 1, 0, 0);
197 }
198
199
200 void InsetFormulaBase::insetUnlock(BufferView * bv)
201 {
202         if (mathcursor) {
203                 if (mathcursor->inMacroMode()) {
204                         mathcursor->macroModeClose();
205                         updateLocal(bv, true);
206                 }
207                 delete mathcursor;
208                 mathcursor = 0;
209         }
210         bv->updateInset(this, false);
211 }
212
213
214 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
215 {
216         mathcursor->getPos(x, y);
217         x -= par()->xo();
218         y -= par()->yo();
219 }
220
221
222 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
223 {
224         if (!mathcursor)
225                 return;
226
227         if (isCursorVisible())
228                 bv->hideLockedInsetCursor();
229         else {
230                 int x;
231                 int y;
232                 mathcursor->getPos(x, y);
233                 //x -= par()->xo();
234                 y -= par()->yo();
235                 int asc;
236                 int desc;
237                 math_font_max_dim(LM_TC_TEXTRM, LM_ST_TEXT, asc, desc);
238                 bv->showLockedInsetCursor(x, y, asc, desc);
239         }
240
241         toggleCursorVisible();
242 }
243
244
245 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
246 {
247         if (!isCursorVisible()) {
248                 if (mathcursor) {
249                         int x;
250                         int y;
251                         mathcursor->getPos(x, y);
252                         x -= par()->xo();
253                         y -= par()->yo();
254                         int asc;
255                         int desc;
256                         math_font_max_dim(LM_TC_TEXTRM, LM_ST_TEXT, asc, desc);
257                         bv->fitLockedInsetCursor(x, y, asc, desc);
258                 }
259                 toggleInsetCursor(bv);
260         }
261 }
262
263
264 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
265 {
266         if (isCursorVisible())
267                 toggleInsetCursor(bv);
268 }
269
270
271 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
272 {
273         if (mathcursor)
274                 bv->updateInset(this, false);
275 }
276
277
278 vector<string> const InsetFormulaBase::getLabelList() const
279 {
280   return std::vector<string>();
281 }
282
283
284 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
285 {
286         metrics();
287         bv->updateInset(this, dirty);
288 }
289
290
291 void InsetFormulaBase::insetButtonRelease(BufferView * bv,
292                                           int x, int y, int /*button*/)
293 {
294         if (mathcursor) {
295                 hideInsetCursor(bv);
296                 x += par()->xo();
297                 y += par()->yo();
298                 mathcursor->setPos(x, y);
299                 showInsetCursor(bv);
300                 if (sel_flag) {
301                         sel_flag = false;
302                         sel_x = 0;
303                         sel_y = 0;
304                 }
305                 bv->updateInset(this, false);
306         }
307 }
308
309
310 void InsetFormulaBase::insetButtonPress(BufferView * bv,
311                                         int x, int y, int /*button*/)
312 {
313         sel_flag = false;
314         sel_x = x;
315         sel_y = y;
316         if (mathcursor && mathcursor->selection()) {
317                 mathcursor->selClear();
318                 bv->updateInset(this, false);
319         }
320 }
321
322
323 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
324                                          int x, int y, int /*button*/)
325 {
326         if (sel_x && sel_y && abs(x-sel_x) > 4 && !sel_flag) {
327                 sel_flag = true;
328                 hideInsetCursor(bv);
329                 mathcursor->setPos(sel_x + par()->xo(), sel_y + par()->yo());
330                 mathcursor->selStart();
331                 showInsetCursor(bv);
332                 mathcursor->getPos(sel_x, sel_y);
333         } else if (sel_flag) {
334                 hideInsetCursor(bv);
335                 x += par()->xo();
336                 y += par()->yo();
337                 mathcursor->setPos(x, y);
338                 showInsetCursor(bv);
339                 mathcursor->getPos(x, y);
340                 if (sel_x != x || sel_y != y)
341                         bv->updateInset(this, false);
342                 sel_x = x;
343                 sel_y = y;
344         }
345 }
346
347
348 void InsetFormulaBase::insetKeyPress(XKeyEvent *)
349 {
350         lyxerr[Debug::MATHED] << "Used InsetFormulaBase::InsetKeyPress." << endl;
351 }
352
353
354 int greek_kb_flag = 0;
355
356 UpdatableInset::RESULT
357 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
358                             string const & arg)
359 {
360         //lyxerr << "InsetFormulaBase::LocalDispatch: act: " << action
361         //      << " arg: '" << arg << "' cursor: " << mathcursor << "\n";
362
363
364         if (!mathcursor) 
365                 return UNDISPATCHED;
366
367         RESULT result      = DISPATCHED;
368         bool sel           = false;
369         bool was_macro     = mathcursor->inMacroMode();
370         bool was_selection = mathcursor->selection();
371
372         hideInsetCursor(bv);
373
374         mathcursor->normalize();
375
376         switch (action) {
377
378                 // --- Cursor Movements ---------------------------------------------
379
380         case LFUN_RIGHTSEL:
381                 sel = true; // fall through...
382
383         case LFUN_RIGHT:
384                 result = DISPATCH_RESULT(mathcursor->right(sel));
385                 updateLocal(bv, false);
386                 break;
387
388
389         case LFUN_LEFTSEL:
390                 sel = true; // fall through
391
392         case LFUN_LEFT:
393                 result = DISPATCH_RESULT(mathcursor->left(sel));
394                 updateLocal(bv, false);
395                 break;
396
397
398         case LFUN_UPSEL:
399                 sel = true;
400
401         case LFUN_UP:
402                 result = DISPATCH_RESULT(mathcursor->up(sel));
403                 updateLocal(bv, false);
404                 break;
405
406
407         case LFUN_DOWNSEL:
408                 sel = true;
409
410         case LFUN_DOWN:
411                 result = DISPATCH_RESULT(mathcursor->down(sel));
412                 updateLocal(bv, false);
413                 break;
414
415         case LFUN_HOME:
416                 mathcursor->home();
417                 updateLocal(bv, false);
418                 break;
419
420         case LFUN_END:
421                 mathcursor->end();
422                 updateLocal(bv, false);
423                 break;
424
425         case LFUN_DELETE_LINE_FORWARD:
426                 bv->lockedInsetStoreUndo(Undo::DELETE);
427                 mathcursor->delLine();
428                 updateLocal(bv, true);
429                 break;
430
431         case LFUN_TAB:
432                 mathcursor->idxNext();
433                 updateLocal(bv, false);
434                 break;
435
436         case LFUN_SHIFT_TAB:
437                 mathcursor->idxPrev();
438                 updateLocal(bv, false);
439                 break;
440
441         case LFUN_TABINSERT:
442                 bv->lockedInsetStoreUndo(Undo::EDIT);
443                 mathcursor->splitCell();
444                 updateLocal(bv, true);
445                 break;
446
447         case LFUN_BACKSPACE:
448                 bv->lockedInsetStoreUndo(Undo::DELETE);
449                 mathcursor->backspace();
450                 bv->updateInset(this, true);
451                 break;
452
453         case LFUN_DELETE:
454                 bv->lockedInsetStoreUndo(Undo::DELETE);
455                 mathcursor->erase();
456                 bv->updateInset(this, true);
457                 break;
458
459                 //    case LFUN_GETXY:
460                 //      sprintf(dispatch_buffer, "%d %d",);
461                 //      dispatch_result = dispatch_buffer;
462                 //      break;
463         case LFUN_SETXY: {
464                 lyxerr << "LFUN_SETXY broken!\n";
465                 int x;
466                 int y;
467                 int x1;
468                 int y1;
469                 istringstream is(arg.c_str());
470                 is >> x >> y;
471                 par()->getXY(x1, y1);
472                 mathcursor->setPos(x1 + x, y1 + y);
473                 updateLocal(bv, false);
474                 break;
475         }
476
477         case LFUN_PASTE:
478                 if (was_macro)
479                         mathcursor->macroModeClose();
480                 bv->lockedInsetStoreUndo(Undo::INSERT);
481                 mathcursor->selPaste();
482                 updateLocal(bv, true);
483                 break;
484
485         case LFUN_CUT:
486                 bv->lockedInsetStoreUndo(Undo::DELETE);
487                 mathcursor->selCut();
488                 updateLocal(bv, true);
489                 break;
490
491         case LFUN_COPY:
492                 mathcursor->selCopy();
493                 break;
494
495         case LFUN_HOMESEL:
496         case LFUN_ENDSEL:
497         case LFUN_WORDRIGHTSEL:
498         case LFUN_WORDLEFTSEL:
499                 break;
500
501                 // --- accented characters ------------------------------
502
503         case LFUN_UMLAUT:       handleAccent(bv, "ddot"); break;
504         case LFUN_CIRCUMFLEX:   handleAccent(bv, "hat"); break;
505         case LFUN_GRAVE:        handleAccent(bv, "grave"); break;
506         case LFUN_ACUTE:        handleAccent(bv, "acute"); break;
507         case LFUN_TILDE:        handleAccent(bv, "tilde"); break;
508         case LFUN_MACRON:       handleAccent(bv, "bar"); break;
509         case LFUN_DOT:          handleAccent(bv, "dot"); break;
510         case LFUN_CARON:        handleAccent(bv, "check"); break;
511         case LFUN_BREVE:        handleAccent(bv, "breve"); break;
512         case LFUN_VECTOR:       handleAccent(bv, "vec"); break;
513
514         //  Math fonts
515         case LFUN_GREEK:        handleFont(bv, LM_TC_GREEK1); break;
516         case LFUN_GREEK_TOGGLE: handleFont(bv, LM_TC_GREEK); break;
517         case LFUN_BOLD:         handleFont(bv, LM_TC_BF); break;
518         case LFUN_SANS:         handleFont(bv, LM_TC_SF); break;
519         case LFUN_EMPH:         handleFont(bv, LM_TC_CAL); break;
520         case LFUN_ROMAN:        handleFont(bv, LM_TC_RM); break;
521         case LFUN_CODE:         handleFont(bv, LM_TC_TT); break;
522         case LFUN_DEFAULT:      handleFont(bv, LM_TC_VAR); break;
523
524         case LFUN_MATH_MODE:
525                 handleFont(bv, LM_TC_TEXTRM);
526                 //bv->owner()->message(_("math text mode toggled"));
527                 break;
528
529         case LFUN_MATH_LIMITS:
530                 bv->lockedInsetStoreUndo(Undo::INSERT);
531                 if (mathcursor->toggleLimits())
532                         updateLocal(bv, true);
533                 break;
534
535         case LFUN_MATH_SIZE:
536                 if (!arg.empty()) {
537                         bv->lockedInsetStoreUndo(Undo::INSERT);
538                         latexkeys const * l = in_word_set(arg);
539                         mathcursor->setSize(MathStyles(l ? l->id : static_cast<unsigned int>(-1)));
540                         updateLocal(bv, true);
541                 }
542                 break;
543
544         case LFUN_INSERT_MATRIX:
545                 if (!arg.empty()) {
546                         bv->lockedInsetStoreUndo(Undo::INSERT);
547                         mathcursor->interpret("matrix " + arg);
548                         updateLocal(bv, true);
549                 }
550                 break;
551
552         case LFUN_MATH_SPACE:
553         {
554                 bv->lockedInsetStoreUndo(Undo::EDIT);
555                 MathSpaceInset * p = mathcursor->prevSpaceInset();
556                 if (p) 
557                         p->incSpace();
558                 else
559                         mathcursor->insert(new MathSpaceInset(1));
560                 updateLocal(bv, true);
561                 break;
562         }
563
564         case LFUN_MATH_DELIM:
565         {
566                 bv->lockedInsetStoreUndo(Undo::INSERT);
567                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
568                 string ls;
569                 string rs;
570                 istringstream is(arg.c_str());
571                 is >> ls >> rs;
572                 latexkeys const * l = in_word_set(ls);
573                 latexkeys const * r = in_word_set(rs);
574                 if (!is || !l || !r) {
575                         lyxerr << "can't parse delimeters from '" << arg << "'\n";
576                         break;
577                 }
578                 bv->lockedInsetStoreUndo(Undo::EDIT);
579                 mathcursor->handleDelim(l, r);
580                 updateLocal(bv, true);
581                 break;
582         }
583
584         case LFUN_PROTECTEDSPACE:
585                 //lyxerr << " called LFUN_PROTECTEDSPACE\n";
586                 bv->lockedInsetStoreUndo(Undo::INSERT);
587                 mathcursor->insert(new MathSpaceInset(1));
588                 updateLocal(bv, true);
589                 break;
590
591         case LFUN_UNDO:
592                 bv->owner()->message(_("Invalid action in math mode!"));
593                 break;
594
595
596         case LFUN_MATH_HALIGN:
597         {
598                 bv->lockedInsetStoreUndo(Undo::INSERT);
599                 lyxerr << "handling halign '" << arg << "'\n";
600                 int idx;
601                 MathArrayInset * p = matrixpar(idx);
602                 if (!p)
603                         break; 
604                 p->halign(arg.size() ? arg[0] : 'c', p->col(idx));
605                 updateLocal(bv, true);
606                 break;
607         }
608
609         case LFUN_MATH_VALIGN:
610         {
611                 bv->lockedInsetStoreUndo(Undo::INSERT);
612                 lyxerr << "handling valign '" << arg << "'\n";
613                 int idx;
614                 MathArrayInset * p = matrixpar(idx);
615                 if (!p)
616                         break; 
617                 p->valign(arg.size() ? arg[0] : 'c');
618                 updateLocal(bv, true);
619                 break;
620         }
621
622         case LFUN_MATH_ROW_INSERT:
623         {
624                 bv->lockedInsetStoreUndo(Undo::INSERT);
625                 int idx;
626                 MathArrayInset * p = matrixpar(idx);
627                 lyxerr << " calling LFUN_MATH_ROW_INSERT on " << p << endl;
628                 if (!p)
629                         break; 
630                 p->addRow(p->row(idx));
631                 updateLocal(bv, true);
632                 break;
633         }
634
635         case LFUN_MATH_ROW_DELETE:
636         {
637                 bv->lockedInsetStoreUndo(Undo::INSERT);
638                 int idx;
639                 MathArrayInset * p = matrixpar(idx);
640                 lyxerr << " calling LFUN_MATH_ROW_DELETE on " << p << endl;
641                 if (!p)
642                         break; 
643                 p->delRow(p->row(idx));
644                 updateLocal(bv, true);
645                 break;
646         }
647
648         case LFUN_MATH_COLUMN_INSERT:
649         {
650                 bv->lockedInsetStoreUndo(Undo::INSERT);
651                 int idx;
652                 MathArrayInset * p = matrixpar(idx);
653                 if (!p)
654                         break; 
655                 p->addCol(p->col(idx));
656                 updateLocal(bv, true);
657                 break;
658         }
659
660         case LFUN_MATH_COLUMN_DELETE:
661         {
662                 bv->lockedInsetStoreUndo(Undo::INSERT);
663                 int idx;
664                 MathArrayInset * p = matrixpar(idx);
665                 if (!p)
666                         break; 
667                 p->delCol(p->col(idx));
668                 updateLocal(bv, true);
669                 break;
670         }
671
672         case LFUN_EXEC_COMMAND:
673                 result = UNDISPATCHED;
674                 break;
675
676         case -1:
677         case LFUN_INSERT_MATH:
678         case LFUN_SELFINSERT:
679                 if (!arg.empty()) {
680                         bv->lockedInsetStoreUndo(Undo::INSERT);
681                         mathcursor->interpret(arg);
682                         updateLocal(bv, true);
683                 }
684                 break;
685
686         case LFUN_MATH_PANEL:
687                 result = UNDISPATCHED;
688                 break;
689
690         default:
691                 lyxerr << "Closed by action " << action << endl;
692                 result =  FINISHED;
693         }
694
695         mathcursor->normalize();
696
697         if (was_macro != mathcursor->inMacroMode()
698                                 && action >= 0 && action != LFUN_BACKSPACE) 
699                 updateLocal(bv, true);
700         
701         if (mathcursor->selection() || was_selection)
702                 toggleInsetSelection(bv);
703
704         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
705             result == UNDISPATCHED)
706                 showInsetCursor(bv);
707         else
708                 bv->unlockInset(this);
709
710         return result;  // original version
711 }
712
713
714 Inset::Code InsetFormulaBase::lyxCode() const
715 {
716         return Inset::MATH_CODE;
717 }
718
719
720 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
721 {
722         if (bv->available()) {
723                 // use selection if available..
724                 //string sel;
725                 //if (action == LFUN_MATH_IMPORT_SELECTION)
726                 //      sel = "";
727                 //else
728
729                 string sel = bv->getLyXText()->selectionAsString(bv->buffer());
730
731                 InsetFormulaBase * f;
732                 if (sel.empty()) {
733                                 f = new InsetFormula;
734                                 if (openNewInset(bv, f)) {
735                                         // don't do that also for LFUN_MATH_MODE unless you want end up with
736                                         // always changing to mathrm when opening an inlined inset
737                                         // -- I really hate "LyXfunc overloading"...
738                                         if (display)
739                                                 f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
740                                         f->localDispatch(bv, LFUN_INSERT_MATH, arg);
741                                 }
742                 } else {
743                         // create a macro if we see "\\newcommand" somewhere, and an ordinary
744                         // formula otherwise
745                         if (sel.find("\\newcommand") == string::npos) 
746                                 f = new InsetFormula(sel);
747                         else
748                                 f = new InsetFormulaMacro(sel);
749                         bv->getLyXText()->cutSelection(bv);
750                         openNewInset(bv, f);
751                 }
752         }
753         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
754 }
755
756 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
757 {
758         mathDispatchCreation(bv, arg, true);
759 }
760
761         
762 void mathDispatchMathMode(BufferView * bv, string const & arg)
763 {
764         mathDispatchCreation(bv, arg, false);
765 }
766
767
768 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
769 {
770         mathDispatchCreation(bv, arg, true);
771 }
772
773
774 void mathDispatchMathMacro(BufferView * bv, string const & arg)
775 {
776         if (bv->available()) {
777                 if (arg.empty())
778                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
779                 else {
780                         string s(arg);
781                         string const s1 = token(s, ' ', 1);
782                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
783                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
784                 }
785         }
786 }
787
788
789 void mathDispatchMathDelim(BufferView * bv, string const & arg)
790 {          
791         if (bv->available()) { 
792                 if (openNewInset(bv, new InsetFormula))
793                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
794         }
795 }          
796
797
798 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
799 {          
800         if (bv->available()) { 
801                 if (openNewInset(bv, new InsetFormula))
802                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
803         }
804 }          
805
806
807 void mathDispatchInsertMath(BufferView * bv, string const & arg)
808 {
809         if (bv->available()) {
810                 if (arg.size() && arg[0] == '\\')
811                         openNewInset(bv, new InsetFormula(arg));
812                 else
813                         mathDispatchMathMode(bv, arg);
814         }
815 }
816