1 /**
2  * \file Inset.cpp
3  * This file is part of LyX, the document processor.
4  * Licence details can be found in the file COPYING.
5  *
6  * \author Alejandro Aguilar Sierra
7  * \author Jürgen Vigna
8  * \author Lars Gullik Bjønnes
9  * \author Matthias Ettrich
10  * \author André Pönitz
11  *
12  * Full author contact details are available in file CREDITS.
13  */
14 
15 #include <config.h>
16 
17 #include "Inset.h"
18 
19 #include "buffer_funcs.h"
20 #include "Buffer.h"
21 #include "BufferList.h"
22 #include "BufferParams.h"
23 #include "BufferView.h"
24 #include "CoordCache.h"
25 #include "Cursor.h"
26 #include "Dimension.h"
27 #include "DispatchResult.h"
28 #include "FuncRequest.h"
29 #include "FuncStatus.h"
30 #include "MetricsInfo.h"
31 #include "output_xhtml.h"
32 #include "Text.h"
33 #include "TextClass.h"
34 #include "TocBackend.h"
35 
36 #include "frontends/Application.h"
37 #include "frontends/Painter.h"
38 
39 #include "support/debug.h"
40 #include "support/docstream.h"
41 #include "support/ExceptionMessage.h"
42 #include "support/gettext.h"
43 #include "support/lassert.h"
44 
45 #include <map>
46 
47 using namespace std;
48 using namespace lyx::support;
49 
50 namespace lyx {
51 
52 class InsetName {
53 public:
InsetName(string const & n=string (),docstring const & dn=docstring ())54 	InsetName(string const & n = string(), docstring const & dn = docstring())
55 		: name(n), display_name(dn) {}
56 	string name;
57 	docstring display_name;
58 };
59 
60 
61 static InsetName insetnames[INSET_CODE_SIZE];
62 
63 
64 // This list should be kept in sync with the list of dialogs in
65 // src/frontends/qt4/GuiView.cpp, I.e., if a dialog goes with an
66 // inset, the dialog should have the same name as the inset.
67 // Changes should be also recorded in LFUN_DIALOG_SHOW doxygen
68 // docs in LyXAction.cpp.
build_translator()69 static void build_translator()
70 {
71 	static bool passed = false;
72 	if (passed)
73 		return;
74 	insetnames[TOC_CODE] = InsetName("toc");
75 	insetnames[QUOTE_CODE] = InsetName("quote");
76 	insetnames[REF_CODE] = InsetName("ref");
77 	insetnames[HYPERLINK_CODE] = InsetName("href");
78 	insetnames[SEPARATOR_CODE] = InsetName("separator");
79 	insetnames[ENDING_CODE] = InsetName("ending");
80 	insetnames[LABEL_CODE] = InsetName("label");
81 	insetnames[NOTE_CODE] = InsetName("note");
82 	insetnames[PHANTOM_CODE] = InsetName("phantom");
83 	insetnames[ACCENT_CODE] = InsetName("accent");
84 	insetnames[MATH_CODE] = InsetName("math");
85 	insetnames[INDEX_CODE] = InsetName("index");
86 	insetnames[NOMENCL_CODE] = InsetName("nomenclature");
87 	insetnames[INCLUDE_CODE] = InsetName("include");
88 	insetnames[GRAPHICS_CODE] = InsetName("graphics");
89 	insetnames[BIBITEM_CODE] = InsetName("bibitem", _("Bibliography Entry"));
90 	insetnames[BIBTEX_CODE] = InsetName("bibtex");
91 	insetnames[TEXT_CODE] = InsetName("text");
92 	insetnames[ERT_CODE] = InsetName("ert", _("TeX Code"));
93 	insetnames[FOOT_CODE] = InsetName("foot");
94 	insetnames[MARGIN_CODE] = InsetName("margin");
95 	insetnames[FLOAT_CODE] = InsetName("float", _("Float"));
96 	insetnames[WRAP_CODE] = InsetName("wrap");
97 	insetnames[SPECIALCHAR_CODE] = InsetName("specialchar");
98 	insetnames[IPA_CODE] = InsetName("ipa");
99 	insetnames[IPACHAR_CODE] = InsetName("ipachar");
100 	insetnames[IPADECO_CODE] = InsetName("ipadeco");
101 	insetnames[TABULAR_CODE] = InsetName("tabular", _("Table"));
102 	insetnames[EXTERNAL_CODE] = InsetName("external");
103 	insetnames[CAPTION_CODE] = InsetName("caption");
104 	insetnames[MATHMACRO_CODE] = InsetName("mathmacro");
105 	insetnames[CITE_CODE] = InsetName("citation");
106 	insetnames[FLOAT_LIST_CODE] = InsetName("floatlist");
107 	insetnames[INDEX_PRINT_CODE] = InsetName("index_print");
108 	insetnames[NOMENCL_PRINT_CODE] = InsetName("nomencl_print");
109 	insetnames[ARG_CODE] = InsetName("optarg");
110 	insetnames[NEWLINE_CODE] = InsetName("newline");
111 	insetnames[LINE_CODE] = InsetName("line");
112 	insetnames[BRANCH_CODE] = InsetName("branch", _("Branch"));
113 	insetnames[BOX_CODE] = InsetName("box", _("Box"));
114 	insetnames[FLEX_CODE] = InsetName("flex");
115 	insetnames[SPACE_CODE] = InsetName("space", _("Horizontal Space"));
116 	insetnames[VSPACE_CODE] = InsetName("vspace", _("Vertical Space"));
117 	insetnames[MATH_MACROARG_CODE] = InsetName("mathmacroarg");
118 	insetnames[LISTINGS_CODE] = InsetName("listings");
119 	insetnames[INFO_CODE] = InsetName("info", _("Info"));
120 	insetnames[COLLAPSIBLE_CODE] = InsetName("collapsible");
121 	insetnames[NEWPAGE_CODE] = InsetName("newpage");
122 	insetnames[SCRIPT_CODE] = InsetName("script");
123 	insetnames[CELL_CODE] = InsetName("tablecell");
124 	insetnames[MATH_AMSARRAY_CODE] = InsetName("mathamsarray");
125 	insetnames[MATH_ARRAY_CODE] = InsetName("matharray");
126 	insetnames[MATH_BIG_CODE] = InsetName("mathbig");
127 	insetnames[MATH_BOLDSYMBOL_CODE] = InsetName("mathboldsymbol");
128 	insetnames[MATH_BOX_CODE] = InsetName("mathbox");
129 	insetnames[MATH_BRACE_CODE] = InsetName("mathbrace");
130 	insetnames[MATH_CANCEL_CODE] = InsetName("mathcancel");
131 	insetnames[MATH_CANCELTO_CODE] = InsetName("mathcancelto");
132 	insetnames[MATH_CASES_CODE] = InsetName("mathcases");
133 	insetnames[MATH_CHAR_CODE] = InsetName("mathchar");
134 	insetnames[MATH_COLOR_CODE] = InsetName("mathcolor");
135 	insetnames[MATH_COMMENT_CODE] = InsetName("mathcomment");
136 	insetnames[MATH_DECORATION_CODE] = InsetName("mathdecoration");
137 	insetnames[MATH_DELIM_CODE] = InsetName("mathdelim");
138 	insetnames[MATH_DIFF_CODE] = InsetName("mathdiff");
139 	insetnames[MATH_DOTS_CODE] = InsetName("mathdots");
140 	insetnames[MATH_ENSUREMATH_CODE] = InsetName("mathensuremath");
141 	insetnames[MATH_ENV_CODE] = InsetName("mathenv");
142 	insetnames[MATH_EXFUNC_CODE] = InsetName("mathexfunc");
143 	insetnames[MATH_EXINT_CODE] = InsetName("mathexint");
144 	insetnames[MATH_FONT_CODE] = InsetName("mathfont");
145 	insetnames[MATH_FONTOLD_CODE] = InsetName("mathfontold");
146 	insetnames[MATH_FRAC_CODE] = InsetName("mathfrac");
147 	insetnames[MATH_GRID_CODE] = InsetName("mathgrid");
148 	insetnames[MATH_CODE] = InsetName("math");
149 	insetnames[MATH_HULL_CODE] = InsetName("mathhull");
150 	insetnames[MATH_KERN_CODE] = InsetName("mathkern");
151 	insetnames[MATH_LEFTEQN_CODE] = InsetName("mathlefteqn");
152 	insetnames[MATH_LIM_CODE] = InsetName("mathlim");
153 	insetnames[MATH_MATRIX_CODE] = InsetName("mathmatrix");
154 	insetnames[MATH_MBOX_CODE] = InsetName("mathmbox");
155 	insetnames[MATH_NEST_CODE] = InsetName("mathnest");
156 	insetnames[MATH_NUMBER_CODE] = InsetName("mathnumber");
157 	insetnames[MATH_OVERSET_CODE] = InsetName("mathoverset");
158 	insetnames[MATH_PAR_CODE] = InsetName("mathpar");
159 	insetnames[MATH_PHANTOM_CODE] = InsetName("mathphantom");
160 	insetnames[MATH_REF_CODE] = InsetName("mathref");
161 	insetnames[MATH_ROOT_CODE] = InsetName("mathroot");
162 	insetnames[MATH_SCRIPT_CODE] = InsetName("mathscript");
163 	insetnames[MATH_SIZE_CODE] = InsetName("mathsize");
164 	insetnames[MATH_SPACE_CODE] = InsetName("mathspace", _("Horizontal Math Space"));
165 	insetnames[MATH_SPECIALCHAR_CODE] = InsetName("mathspecialchar");
166 	insetnames[MATH_SPLIT_CODE] = InsetName("mathsplit");
167 	insetnames[MATH_SQRT_CODE] = InsetName("mathsqrt");
168 	insetnames[MATH_STACKREL_CODE] = InsetName("mathstackrel");
169 	insetnames[MATH_STRING_CODE] = InsetName("mathstring");
170 	insetnames[MATH_SUBSTACK_CODE] = InsetName("mathsubstack");
171 	insetnames[MATH_SYMBOL_CODE] = InsetName("mathsymbol");
172 	insetnames[MATH_TABULAR_CODE] = InsetName("mathtabular");
173 	insetnames[MATH_UNDERSET_CODE] = InsetName("mathunderset");
174 	insetnames[MATH_UNKNOWN_CODE] = InsetName("mathunknown");
175 	insetnames[MATH_XARROW_CODE] = InsetName("mathxarrow");
176 	insetnames[MATH_XYMATRIX_CODE] = InsetName("mathxymatrix");
177 	insetnames[MATH_DIAGRAM_CODE] = InsetName("mathdiagram");
178 	insetnames[MATH_MACRO_CODE] = InsetName("mathmacro");
179 
180 	passed = true;
181 }
182 
183 
setBuffer(Buffer & buffer)184 void Inset::setBuffer(Buffer & buffer)
185 {
186 	buffer_ = &buffer;
187 }
188 
189 
resetBuffer()190 void Inset::resetBuffer()
191 {
192 	buffer_ = nullptr;
193 }
194 
195 
buffer()196 Buffer & Inset::buffer()
197 {
198 	if (!buffer_) {
199 		odocstringstream s;
200 		string const iname = insetName(lyxCode());
201 		LYXERR0("Inset: " << this << " LyX Code: " << lyxCode()
202 					<< " name: " << iname);
203 		s << "LyX Code: " << lyxCode() << " name: " << from_ascii(iname);
204 		LATTEST(false);
205 		throw ExceptionMessage(BufferException,
206 			from_ascii("Inset::buffer_ member not initialized!"), s.str());
207 	}
208 	return *buffer_;
209 }
210 
211 
buffer() const212 Buffer const & Inset::buffer() const
213 {
214 	return const_cast<Inset *>(this)->buffer();
215 }
216 
217 
isBufferLoaded() const218 bool Inset::isBufferLoaded() const
219 {
220 	return buffer_ && theBufferList().isLoaded(buffer_);
221 }
222 
223 
isBufferValid() const224 bool Inset::isBufferValid() const
225 {
226 	return buffer_
227 		&& (isBufferLoaded() || buffer_->isClone());
228 }
229 
230 
layoutName() const231 docstring Inset::layoutName() const
232 {
233 	return from_ascii("unknown");
234 }
235 
236 
isFreeSpacing() const237 bool Inset::isFreeSpacing() const
238 {
239 	return getLayout().isFreeSpacing();
240 }
241 
242 
allowEmpty() const243 bool Inset::allowEmpty() const
244 {
245 	return getLayout().isKeepEmpty();
246 }
247 
248 
forceLTR(OutputParams const &) const249 bool Inset::forceLTR(OutputParams const &) const
250 {
251 	return getLayout().forceLTR();
252 }
253 
254 
isInToc() const255 bool Inset::isInToc() const
256 {
257 	return getLayout().isInToc();
258 }
259 
260 
toolTip(BufferView const &,int,int) const261 docstring Inset::toolTip(BufferView const &, int, int) const
262 {
263 	return docstring();
264 }
265 
266 
forOutliner(docstring &,size_t const,bool const) const267 void Inset::forOutliner(docstring &, size_t const, bool const) const
268 {
269 }
270 
271 
contextMenu(BufferView const &,int,int) const272 string Inset::contextMenu(BufferView const &, int, int) const
273 {
274 	return contextMenuName();
275 }
276 
277 
contextMenuName() const278 string Inset::contextMenuName() const
279 {
280 	return string();
281 }
282 
283 
dimension(BufferView const & bv) const284 Dimension const Inset::dimension(BufferView const & bv) const
285 {
286 	return bv.coordCache().getInsets().dim(this);
287 }
288 
289 
insetCode(string const & name)290 InsetCode insetCode(string const & name)
291 {
292 	build_translator();
293 	for (int i = 1; i != int(INSET_CODE_SIZE); ++i) {
294 		if (insetnames[i].name == name)
295 			return InsetCode(i);
296 	}
297 	return NO_CODE;
298 }
299 
300 
insetName(InsetCode c)301 string insetName(InsetCode c)
302 {
303 	build_translator();
304 	return insetnames[c].name;
305 }
306 
307 
insetDisplayName(InsetCode c)308 docstring insetDisplayName(InsetCode c)
309 {
310 	build_translator();
311 	return insetnames[c].display_name;
312 }
313 
314 
dispatch(Cursor & cur,FuncRequest & cmd)315 void Inset::dispatch(Cursor & cur, FuncRequest & cmd)
316 {
317 	if (buffer_ == 0) {
318 		lyxerr << "Unassigned buffer_ member in Inset::dispatch()" << std::endl;
319 		lyxerr << "LyX Code: " << lyxCode() << " name: "
320 		       << insetName(lyxCode()) << std::endl;
321 	} else if (cur.buffer() != buffer_)
322 		lyxerr << "cur.buffer() != buffer_ in Inset::dispatch()" << std::endl;
323 	cur.screenUpdateFlags(Update::Force | Update::FitCursor);
324 	cur.dispatched();
325 	doDispatch(cur, cmd);
326 }
327 
328 
showInsetDialog(BufferView * bv) const329 bool Inset::showInsetDialog(BufferView * bv) const
330 {
331 	InsetCode const code = lyxCode();
332 	switch (code){
333 	case ERT_CODE:
334 	case FLOAT_CODE:
335 	case BOX_CODE:
336 	case BIBITEM_CODE:
337 	case BRANCH_CODE:
338 	case INFO_CODE:
339 	case MATH_SPACE_CODE:
340 	case SPACE_CODE:
341 	case TABULAR_CODE:
342 	case VSPACE_CODE:
343 		bv->showDialog(insetName(code));
344 		break;
345 	default:
346 		return false;
347 	}
348 	return true;
349 }
350 
351 
doDispatch(Cursor & cur,FuncRequest & cmd)352 void Inset::doDispatch(Cursor & cur, FuncRequest &cmd)
353 {
354 	switch (cmd.action()) {
355 	case LFUN_MOUSE_RELEASE:
356 		// if the derived inset did not explicitly handle mouse_release,
357 		// we assume we request the settings dialog
358 		if (!cur.selection() && cmd.button() == mouse_button::button1
359 		    && clickable(cur.bv(), cmd.x(), cmd.y()) && hasSettings()) {
360 			FuncRequest tmpcmd(LFUN_INSET_SETTINGS);
361 			dispatch(cur, tmpcmd);
362 		}
363 		break;
364 
365 	case LFUN_INSET_SETTINGS:
366 		if (cmd.argument().empty() || cmd.getArg(0) == insetName(lyxCode())) {
367 			showInsetDialog(&cur.bv());
368 			cur.dispatched();
369 		} else
370 			cur.undispatched();
371 		break;
372 
373 	default:
374 		cur.noScreenUpdate();
375 		cur.undispatched();
376 		break;
377 	}
378 }
379 
380 
getStatus(Cursor &,FuncRequest const & cmd,FuncStatus & flag) const381 bool Inset::getStatus(Cursor &, FuncRequest const & cmd,
382 	FuncStatus & flag) const
383 {
384 	// LFUN_INSET_APPLY is sent from the dialogs when the data should
385 	// be applied. This is either changed to LFUN_INSET_MODIFY (if the
386 	// dialog belongs to us) or LFUN_INSET_INSERT (if the dialog does
387 	// not belong to us, i. e. the dialog was open, and the user moved
388 	// the cursor in our inset) in lyx::getStatus().
389 	// Dialogs::checkStatus() ensures that the dialog is deactivated if
390 	// LFUN_INSET_APPLY is disabled.
391 
392 	switch (cmd.action()) {
393 	case LFUN_INSET_MODIFY:
394 		// Allow modification of our data.
395 		// This needs to be handled in the doDispatch method of our
396 		// instantiatable children.
397 		flag.setEnabled(true);
398 		return true;
399 
400 	case LFUN_INSET_INSERT:
401 		// Don't allow insertion of new insets.
402 		// Every inset that wants to allow new insets from open
403 		// dialogs needs to override this.
404 		flag.setEnabled(false);
405 		return true;
406 
407 	case LFUN_INSET_SETTINGS:
408 		if (cmd.argument().empty() || cmd.getArg(0) == insetName(lyxCode())) {
409 			bool const enable = hasSettings();
410 			flag.setEnabled(enable);
411 			return true;
412 		} else {
413 			return false;
414 		}
415 
416 	case LFUN_IN_MATHMACROTEMPLATE:
417 		// By default we're not in a InsetMathMacroTemplate inset
418 		flag.setEnabled(false);
419 		return true;
420 
421 	case LFUN_IN_IPA:
422 		// By default we're not in an IPA inset
423 		flag.setEnabled(false);
424 		return true;
425 
426 	default:
427 		break;
428 	}
429 	return false;
430 }
431 
432 
edit(Cursor &,bool,EntryDirection)433 void Inset::edit(Cursor &, bool, EntryDirection)
434 {
435 	LYXERR(Debug::INSETS, "edit left/right");
436 }
437 
438 
editXY(Cursor &,int x,int y)439 Inset * Inset::editXY(Cursor &, int x, int y)
440 {
441 	LYXERR(Debug::INSETS, "x: " << x << " y: " << y);
442 	return this;
443 }
444 
445 
index(row_type row,col_type col) const446 Inset::idx_type Inset::index(row_type row, col_type col) const
447 {
448 	if (row != 0)
449 		LYXERR0("illegal row: " << row);
450 	if (col != 0)
451 		LYXERR0("illegal col: " << col);
452 	return 0;
453 }
454 
455 
idxBetween(idx_type idx,idx_type from,idx_type to) const456 bool Inset::idxBetween(idx_type idx, idx_type from, idx_type to) const
457 {
458 	return from <= idx && idx <= to;
459 }
460 
461 
idxUpDown(Cursor &,bool) const462 bool Inset::idxUpDown(Cursor &, bool) const
463 {
464 	return false;
465 }
466 
467 
docbook(odocstream &,OutputParams const &) const468 int Inset::docbook(odocstream &, OutputParams const &) const
469 {
470 	return 0;
471 }
472 
473 
xhtml(XHTMLStream & xs,OutputParams const &) const474 docstring Inset::xhtml(XHTMLStream & xs, OutputParams const &) const
475 {
476 	xs << "[[Inset: " << from_ascii(insetName(lyxCode())) << "]]";
477 	return docstring();
478 }
479 
480 
directWrite() const481 bool Inset::directWrite() const
482 {
483 	return false;
484 }
485 
486 
editable() const487 bool Inset::editable() const
488 {
489 	return false;
490 }
491 
492 
hasSettings() const493 bool Inset::hasSettings() const
494 {
495 	return false;
496 }
497 
498 
499 
autoDelete() const500 bool Inset::autoDelete() const
501 {
502 	return false;
503 }
504 
505 
cursorPos(BufferView const &,CursorSlice const &,bool,int & x,int & y) const506 void Inset::cursorPos(BufferView const & /*bv*/, CursorSlice const &,
507 		bool, int & x, int & y) const
508 {
509 	LYXERR0("Inset::cursorPos called directly");
510 	x = 100;
511 	y = 100;
512 }
513 
514 
metricsMarkers(Dimension & dim,int framesize) const515 void Inset::metricsMarkers(Dimension & dim, int framesize) const
516 {
517 	dim.wid += 2 * framesize;
518 	dim.des += framesize;
519 }
520 
521 
metricsMarkers2(Dimension & dim,int framesize) const522 void Inset::metricsMarkers2(Dimension & dim, int framesize) const
523 {
524 	dim.wid += 2 * framesize;
525 	dim.asc += framesize;
526 	dim.des += framesize;
527 }
528 
529 
drawBackground(PainterInfo & pi,int x,int y) const530 void Inset::drawBackground(PainterInfo & pi, int x, int y) const
531 {
532 	if (pi.full_repaint && backgroundColor(pi) == Color_none)
533 		return;
534 	Dimension const dim = dimension(*pi.base.bv);
535 	pi.pain.fillRectangle(x, y - dim.asc, dim.wid, dim.asc + dim.des,
536 	                      pi.backgroundColor(this));
537 }
538 
539 
drawMarkers(PainterInfo & pi,int x,int y) const540 void Inset::drawMarkers(PainterInfo & pi, int x, int y) const
541 {
542 	ColorCode pen_color = mouseHovered(pi.base.bv) || editing(pi.base.bv)?
543 		Color_mathframe : Color_mathcorners;
544 
545 	Dimension const dim = dimension(*pi.base.bv);
546 
547 	int const t = x + dim.width() - 1;
548 	int const d = y + dim.descent();
549 	pi.pain.line(x, d - 3, x, d, pen_color);
550 	pi.pain.line(t, d - 3, t, d, pen_color);
551 	pi.pain.line(x, d, x + 3, d, pen_color);
552 	pi.pain.line(t - 3, d, t, d, pen_color);
553 }
554 
555 
editing(BufferView const * bv) const556 bool Inset::editing(BufferView const * bv) const
557 {
558 	return bv->cursor().isInside(this);
559 }
560 
561 
xo(BufferView const & bv) const562 int Inset::xo(BufferView const & bv) const
563 {
564 	return bv.coordCache().getInsets().x(this);
565 }
566 
567 
yo(BufferView const & bv) const568 int Inset::yo(BufferView const & bv) const
569 {
570 	return bv.coordCache().getInsets().y(this);
571 }
572 
573 
covers(BufferView const & bv,int x,int y) const574 bool Inset::covers(BufferView const & bv, int x, int y) const
575 {
576 	return bv.coordCache().getInsets().covers(this, x, y);
577 }
578 
579 
getLayout() const580 InsetLayout const & Inset::getLayout() const
581 {
582 	if (!buffer_)
583 		return DocumentClass::plainInsetLayout();
584 	return buffer().params().documentClass().insetLayout(layoutName());
585 }
586 
587 
undefined() const588 bool Inset::undefined() const
589 {
590 	docstring const & n = getLayout().name();
591 	return n.empty() || n == DocumentClass::plainInsetLayout().name();
592 }
593 
594 
dump() const595 void Inset::dump() const
596 {
597 	write(lyxerr);
598 }
599 
600 
backgroundColor(PainterInfo const &) const601 ColorCode Inset::backgroundColor(PainterInfo const & /*pi*/) const
602 {
603 	return Color_none;
604 }
605 
606 
labelColor() const607 ColorCode Inset::labelColor() const
608 {
609 	return Color_foreground;
610 }
611 
612 
updateFrontend() const613 Buffer const * Inset::updateFrontend() const
614 {
615 	//FIXME (Abdel 03/12/10): see bugs #6814 and #6949
616 	// If the Buffer is null and we end up here this is most probably because we
617 	// are in the CutAndPaste stack. See InsetGraphics, RenderGraphics and
618 	// RenderPreview.
619 	if (!buffer_)
620 		return 0;
621 	return theApp() ? theApp()->updateInset(this) : 0;
622 }
623 
624 
resetFontEdit() const625 bool Inset::resetFontEdit() const
626 {
627 	return getLayout().resetsFont() || !inheritFont();
628 }
629 
630 
completionPrefix(Cursor const &) const631 docstring Inset::completionPrefix(Cursor const &) const
632 {
633 	return docstring();
634 }
635 
636 } // namespace lyx
637