3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Asger Alstrup
7 * \author Lars Gullik Bjønnes
8 * \author Dov Feldstern
9 * \author Jean-Marc Lasgouttes
11 * \author André Pönitz
12 * \author Stefan Schimanski
14 * \author Jürgen Vigna
16 * Full author contact details are available in file CREDITS.
25 #include "buffer_funcs.h"
26 #include "BufferParams.h"
27 #include "BufferView.h"
29 #include "CompletionList.h"
31 #include "CutAndPaste.h"
32 #include "DispatchResult.h"
34 #include "ErrorList.h"
35 #include "FuncRequest.h"
37 #include "InsetList.h"
44 #include "Paragraph.h"
45 #include "ParagraphParameters.h"
46 #include "ParIterator.h"
47 #include "TextClass.h"
48 #include "TextMetrics.h"
50 #include "WordLangTuple.h"
53 #include "insets/InsetText.h"
54 #include "insets/InsetBibitem.h"
55 #include "insets/InsetCaption.h"
56 #include "insets/InsetNewline.h"
57 #include "insets/InsetNewpage.h"
58 #include "insets/InsetArgument.h"
59 #include "insets/InsetSpace.h"
60 #include "insets/InsetSpecialChar.h"
61 #include "insets/InsetTabular.h"
63 #include "support/debug.h"
64 #include "support/docstream.h"
65 #include "support/gettext.h"
66 #include "support/lassert.h"
67 #include "support/lstrings.h"
68 #include "support/textutils.h"
70 #include <boost/next_prior.hpp>
75 using namespace lyx::support;
79 using cap::cutSelection;
80 using cap::pasteParagraphList;
82 static bool moveItem(Paragraph & fromPar, pos_type fromPos,
83 Paragraph & toPar, pos_type toPos, BufferParams const & params)
85 // Note: moveItem() does not honour change tracking!
86 // Therefore, it should only be used for breaking and merging paragraphs
88 // We need a copy here because the character at fromPos is going to be erased.
89 Font const tmpFont = fromPar.getFontSettings(params, fromPos);
90 Change const tmpChange = fromPar.lookupChange(fromPos);
92 if (Inset * tmpInset = fromPar.getInset(fromPos)) {
93 fromPar.releaseInset(fromPos);
94 // The inset is not in fromPar any more.
95 if (!toPar.insertInset(toPos, tmpInset, tmpFont, tmpChange)) {
102 char_type const tmpChar = fromPar.getChar(fromPos);
103 fromPar.eraseChar(fromPos, false);
104 toPar.insertChar(toPos, tmpChar, tmpFont, tmpChange);
109 void breakParagraphConservative(BufferParams const & bparams,
110 ParagraphList & pars, pit_type par_offset, pos_type pos)
112 // create a new paragraph
113 Paragraph & tmp = *pars.insert(boost::next(pars.begin(), par_offset + 1),
115 Paragraph & par = pars[par_offset];
117 tmp.setInsetOwner(&par.inInset());
118 tmp.makeSameLayout(par);
120 LASSERT(pos <= par.size(), /**/);
122 if (pos < par.size()) {
123 // move everything behind the break position to the new paragraph
124 pos_type pos_end = par.size() - 1;
126 for (pos_type i = pos, j = 0; i <= pos_end; ++i) {
127 if (moveItem(par, pos, tmp, j, bparams)) {
131 // Move over the end-of-par change information
132 tmp.setChange(tmp.size(), par.lookupChange(par.size()));
133 par.setChange(par.size(), Change(bparams.trackChanges ?
134 Change::INSERTED : Change::UNCHANGED));
139 void mergeParagraph(BufferParams const & bparams,
140 ParagraphList & pars, pit_type par_offset)
142 Paragraph & next = pars[par_offset + 1];
143 Paragraph & par = pars[par_offset];
145 pos_type pos_end = next.size() - 1;
146 pos_type pos_insert = par.size();
148 // the imaginary end-of-paragraph character (at par.size()) has to be
149 // marked as unmodified. Otherwise, its change is adopted by the first
150 // character of the next paragraph.
151 if (par.isChanged(par.size())) {
152 LYXERR(Debug::CHANGES,
153 "merging par with inserted/deleted end-of-par character");
154 par.setChange(par.size(), Change(Change::UNCHANGED));
157 Change change = next.lookupChange(next.size());
159 // move the content of the second paragraph to the end of the first one
160 for (pos_type i = 0, j = pos_insert; i <= pos_end; ++i) {
161 if (moveItem(next, 0, par, j, bparams)) {
166 // move the change of the end-of-paragraph character
167 par.setChange(par.size(), change);
169 pars.erase(boost::next(pars.begin(), par_offset + 1));
173 Text::Text(InsetText * owner, bool use_default_layout)
174 : owner_(owner), autoBreakRows_(false), undo_counter_(0)
176 pars_.push_back(Paragraph());
177 Paragraph & par = pars_.back();
178 par.setInsetOwner(owner);
179 DocumentClass const & dc = owner->buffer().params().documentClass();
180 if (use_default_layout)
181 par.setDefaultLayout(dc);
183 par.setPlainLayout(dc);
187 Text::Text(InsetText * owner, Text const & text)
188 : owner_(owner), autoBreakRows_(text.autoBreakRows_), undo_counter_(0)
191 ParagraphList::iterator const end = pars_.end();
192 ParagraphList::iterator it = pars_.begin();
193 for (; it != end; ++it)
194 it->setInsetOwner(owner);
198 pit_type Text::depthHook(pit_type pit, depth_type depth) const
200 pit_type newpit = pit;
205 while (newpit != 0 && pars_[newpit].getDepth() > depth)
208 if (pars_[newpit].getDepth() > depth)
215 pit_type Text::outerHook(pit_type par_offset) const
217 Paragraph const & par = pars_[par_offset];
219 if (par.getDepth() == 0)
221 return depthHook(par_offset, depth_type(par.getDepth() - 1));
225 bool Text::isFirstInSequence(pit_type par_offset) const
227 Paragraph const & par = pars_[par_offset];
229 pit_type dhook_offset = depthHook(par_offset, par.getDepth());
231 if (dhook_offset == par_offset)
234 Paragraph const & dhook = pars_[dhook_offset];
236 return dhook.layout() != par.layout()
237 || dhook.getDepth() != par.getDepth();
241 Font const Text::outerFont(pit_type par_offset) const
243 depth_type par_depth = pars_[par_offset].getDepth();
244 FontInfo tmpfont = inherit_font;
246 // Resolve against environment font information
247 while (par_offset != pit_type(pars_.size())
249 && !tmpfont.resolved()) {
250 par_offset = outerHook(par_offset);
251 if (par_offset != pit_type(pars_.size())) {
252 tmpfont.realize(pars_[par_offset].layout().font);
253 par_depth = pars_[par_offset].getDepth();
257 return Font(tmpfont);
261 static void acceptOrRejectChanges(ParagraphList & pars,
262 BufferParams const & bparams, Text::ChangeOp op)
264 pit_type pars_size = static_cast<pit_type>(pars.size());
266 // first, accept or reject changes within each individual
267 // paragraph (do not consider end-of-par)
268 for (pit_type pit = 0; pit < pars_size; ++pit) {
269 // prevent assertion failure
270 if (!pars[pit].empty()) {
271 if (op == Text::ACCEPT)
272 pars[pit].acceptChanges(0, pars[pit].size());
274 pars[pit].rejectChanges(0, pars[pit].size());
278 // next, accept or reject imaginary end-of-par characters
279 for (pit_type pit = 0; pit < pars_size; ++pit) {
280 pos_type pos = pars[pit].size();
281 if (pars[pit].isChanged(pos)) {
282 // keep the end-of-par char if it is inserted and accepted
283 // or when it is deleted and rejected.
284 if (pars[pit].isInserted(pos) == (op == Text::ACCEPT)) {
285 pars[pit].setChange(pos, Change(Change::UNCHANGED));
287 if (pit == pars_size - 1) {
288 // we cannot remove a par break at the end of the last
289 // paragraph; instead, we mark it unchanged
290 pars[pit].setChange(pos, Change(Change::UNCHANGED));
292 mergeParagraph(bparams, pars, pit);
302 void acceptChanges(ParagraphList & pars, BufferParams const & bparams)
304 acceptOrRejectChanges(pars, bparams, Text::ACCEPT);
308 void rejectChanges(ParagraphList & pars, BufferParams const & bparams)
310 acceptOrRejectChanges(pars, bparams, Text::REJECT);
314 InsetText const & Text::inset() const
320 void Text::readParToken(Paragraph & par, Lexer & lex,
321 string const & token, Font & font, Change & change, ErrorList & errorList)
323 Buffer * buf = const_cast<Buffer *>(&owner_->buffer());
324 BufferParams const & bp = buf->params();
326 if (token[0] != '\\') {
327 docstring dstr = lex.getDocString();
328 par.appendString(dstr, font, change);
330 } else if (token == "\\begin_layout") {
332 docstring layoutname = lex.getDocString();
334 font = Font(inherit_font, bp.language);
335 change = Change(Change::UNCHANGED);
337 DocumentClass const & tclass = bp.documentClass();
339 if (layoutname.empty())
340 layoutname = tclass.defaultLayoutName();
342 if (owner_->forcePlainLayout()) {
343 // in this case only the empty layout is allowed
344 layoutname = tclass.plainLayoutName();
345 } else if (par.usePlainLayout()) {
346 // in this case, default layout maps to empty layout
347 if (layoutname == tclass.defaultLayoutName())
348 layoutname = tclass.plainLayoutName();
350 // otherwise, the empty layout maps to the default
351 if (layoutname == tclass.plainLayoutName())
352 layoutname = tclass.defaultLayoutName();
355 // When we apply an unknown layout to a document, we add this layout to the textclass
356 // of this document. For example, when you apply class article to a beamer document,
357 // all unknown layouts such as frame will be added to document class article so that
358 // these layouts can keep their original names.
359 tclass.addLayoutIfNeeded(layoutname);
360 bool const added_one = tclass.addLayoutIfNeeded(layoutname);
363 docstring const s = bformat(_("Layout `%1$s' was not found."), layoutname);
365 ErrorItem(_("Layout Not Found"), s, par.id(), 0, par.size()));
368 par.setLayout(bp.documentClass()[layoutname]);
370 // Test whether the layout is obsolete.
371 Layout const & layout = par.layout();
372 if (!layout.obsoleted_by().empty())
373 par.setLayout(bp.documentClass()[layout.obsoleted_by()]);
375 par.params().read(lex);
377 } else if (token == "\\end_layout") {
378 LYXERR0("Solitary \\end_layout in line " << lex.lineNumber() << "\n"
379 << "Missing \\begin_layout ?");
380 } else if (token == "\\end_inset") {
381 LYXERR0("Solitary \\end_inset in line " << lex.lineNumber() << "\n"
382 << "Missing \\begin_inset ?");
383 } else if (token == "\\begin_inset") {
384 Inset * inset = readInset(lex, buf);
386 par.insertInset(par.size(), inset, font, change);
389 docstring line = lex.getDocString();
390 errorList.push_back(ErrorItem(_("Unknown Inset"), line,
391 par.id(), 0, par.size()));
393 } else if (token == "\\family") {
395 setLyXFamily(lex.getString(), font.fontInfo());
396 } else if (token == "\\series") {
398 setLyXSeries(lex.getString(), font.fontInfo());
399 } else if (token == "\\shape") {
401 setLyXShape(lex.getString(), font.fontInfo());
402 } else if (token == "\\size") {
404 setLyXSize(lex.getString(), font.fontInfo());
405 } else if (token == "\\lang") {
407 string const tok = lex.getString();
408 Language const * lang = languages.getLanguage(tok);
410 font.setLanguage(lang);
412 font.setLanguage(bp.language);
413 lex.printError("Unknown language `$$Token'");
415 } else if (token == "\\numeric") {
417 font.fontInfo().setNumber(setLyXMisc(lex.getString()));
418 } else if (token == "\\emph") {
420 font.fontInfo().setEmph(setLyXMisc(lex.getString()));
421 } else if (token == "\\bar") {
423 string const tok = lex.getString();
426 font.fontInfo().setUnderbar(FONT_ON);
427 else if (tok == "no")
428 font.fontInfo().setUnderbar(FONT_OFF);
429 else if (tok == "default")
430 font.fontInfo().setUnderbar(FONT_INHERIT);
432 lex.printError("Unknown bar font flag "
434 } else if (token == "\\strikeout") {
436 font.fontInfo().setStrikeout(setLyXMisc(lex.getString()));
437 } else if (token == "\\uuline") {
439 font.fontInfo().setUuline(setLyXMisc(lex.getString()));
440 } else if (token == "\\uwave") {
442 font.fontInfo().setUwave(setLyXMisc(lex.getString()));
443 } else if (token == "\\noun") {
445 font.fontInfo().setNoun(setLyXMisc(lex.getString()));
446 } else if (token == "\\color") {
448 setLyXColor(lex.getString(), font.fontInfo());
449 } else if (token == "\\SpecialChar") {
450 auto_ptr<Inset> inset;
451 inset.reset(new InsetSpecialChar);
453 inset->setBuffer(*buf);
454 par.insertInset(par.size(), inset.release(), font, change);
455 } else if (token == "\\backslash") {
456 par.appendChar('\\', font, change);
457 } else if (token == "\\LyXTable") {
458 auto_ptr<Inset> inset(new InsetTabular(buf));
460 par.insertInset(par.size(), inset.release(), font, change);
461 } else if (token == "\\change_unchanged") {
462 change = Change(Change::UNCHANGED);
463 } else if (token == "\\change_inserted" || token == "\\change_deleted") {
465 istringstream is(lex.getString());
469 BufferParams::AuthorMap const & am = bp.author_map;
470 if (am.find(aid) == am.end()) {
471 errorList.push_back(ErrorItem(_("Change tracking error"),
472 bformat(_("Unknown author index for change: %1$d\n"), aid),
473 par.id(), 0, par.size()));
474 change = Change(Change::UNCHANGED);
476 if (token == "\\change_inserted")
477 change = Change(Change::INSERTED, am.find(aid)->second, ct);
479 change = Change(Change::DELETED, am.find(aid)->second, ct);
483 errorList.push_back(ErrorItem(_("Unknown token"),
484 bformat(_("Unknown token: %1$s %2$s\n"), from_utf8(token),
486 par.id(), 0, par.size()));
491 void Text::readParagraph(Paragraph & par, Lexer & lex,
492 ErrorList & errorList)
495 string token = lex.getString();
497 Change change(Change::UNCHANGED);
500 readParToken(par, lex, token, font, change, errorList);
503 token = lex.getString();
508 if (token == "\\end_layout") {
509 //Ok, paragraph finished
513 LYXERR(Debug::PARSER, "Handling paragraph token: `" << token << '\'');
514 if (token == "\\begin_layout" || token == "\\end_document"
515 || token == "\\end_inset" || token == "\\begin_deeper"
516 || token == "\\end_deeper") {
517 lex.pushToken(token);
518 lyxerr << "Paragraph ended in line "
519 << lex.lineNumber() << "\n"
520 << "Missing \\end_layout.\n";
524 // Final change goes to paragraph break:
525 par.setChange(par.size(), change);
527 // Initialize begin_of_body_ on load; redoParagraph maintains
528 par.setBeginOfBody();
530 // mark paragraph for spell checking on load
531 // par.requestSpellCheck();
535 class TextCompletionList : public CompletionList
539 TextCompletionList(Cursor const & cur, WordList const * list)
540 : buffer_(cur.buffer()), pos_(0), list_(list)
543 virtual ~TextCompletionList() {}
546 virtual bool sorted() const { return true; }
548 virtual size_t size() const
550 return list_->size();
553 virtual docstring const & data(size_t idx) const
555 return list_->word(idx);
560 Buffer const * buffer_;
564 WordList const * list_;
568 bool Text::empty() const
570 return pars_.empty() || (pars_.size() == 1 && pars_[0].empty()
571 // FIXME: Should we consider the labeled type as empty too?
572 && pars_[0].layout().labeltype == LABEL_NO_LABEL);
576 double Text::spacing(Paragraph const & par) const
578 if (par.params().spacing().isDefault())
579 return owner_->buffer().params().spacing().getValue();
580 return par.params().spacing().getValue();
585 * This breaks a paragraph at the specified position.
586 * The new paragraph will:
587 * - Decrease depth by one (or change layout to default layout) when
588 * keep_layout == false
589 * - keep current depth and layout when keep_layout == true
591 static void breakParagraph(Text & text, pit_type par_offset, pos_type pos,
594 BufferParams const & bparams = text.inset().buffer().params();
595 ParagraphList & pars = text.paragraphs();
596 // create a new paragraph, and insert into the list
597 ParagraphList::iterator tmp =
598 pars.insert(boost::next(pars.begin(), par_offset + 1),
601 Paragraph & par = pars[par_offset];
603 // remember to set the inset_owner
604 tmp->setInsetOwner(&par.inInset());
605 // without doing that we get a crash when typing <Return> at the
606 // end of a paragraph
607 tmp->setPlainOrDefaultLayout(bparams.documentClass());
610 tmp->setLayout(par.layout());
611 tmp->setLabelWidthString(par.params().labelWidthString());
612 tmp->params().depth(par.params().depth());
613 } else if (par.params().depth() > 0) {
614 Paragraph const & hook = pars[text.outerHook(par_offset)];
615 tmp->setLayout(hook.layout());
616 // not sure the line below is useful
617 tmp->setLabelWidthString(par.params().labelWidthString());
618 tmp->params().depth(hook.params().depth());
621 bool const isempty = (par.allowEmpty() && par.empty());
623 if (!isempty && (par.size() > pos || par.empty())) {
624 tmp->setLayout(par.layout());
625 tmp->params().align(par.params().align());
626 tmp->setLabelWidthString(par.params().labelWidthString());
628 tmp->params().depth(par.params().depth());
629 tmp->params().noindent(par.params().noindent());
631 // move everything behind the break position
632 // to the new paragraph
634 /* Note: if !keepempty, empty() == true, then we reach
635 * here with size() == 0. So pos_end becomes - 1. This
636 * doesn't cause problems because both loops below
637 * enforce pos <= pos_end and 0 <= pos
639 pos_type pos_end = par.size() - 1;
641 for (pos_type i = pos, j = 0; i <= pos_end; ++i) {
642 if (moveItem(par, pos, *tmp, j, bparams)) {
648 // Move over the end-of-par change information
649 tmp->setChange(tmp->size(), par.lookupChange(par.size()));
650 par.setChange(par.size(), Change(bparams.trackChanges ?
651 Change::INSERTED : Change::UNCHANGED));
654 // Make sure that we keep the language when
655 // breaking paragraph.
657 Font changed = tmp->getFirstFontSettings(bparams);
658 Font const & old = par.getFontSettings(bparams, par.size());
659 changed.setLanguage(old.language());
660 tmp->setFont(0, changed);
667 bool const soa = par.params().startOfAppendix();
668 par.params().clear();
669 // do not lose start of appendix marker (bug 4212)
670 par.params().startOfAppendix(soa);
671 par.setPlainOrDefaultLayout(bparams.documentClass());
675 par.setLayout(tmp->layout());
676 par.setLabelWidthString(tmp->params().labelWidthString());
677 par.params().depth(tmp->params().depth());
682 void Text::breakParagraph(Cursor & cur, bool inverse_logic)
684 LASSERT(this == cur.text(), /**/);
686 Paragraph & cpar = cur.paragraph();
687 pit_type cpit = cur.pit();
689 DocumentClass const & tclass = cur.buffer()->params().documentClass();
690 Layout const & layout = cpar.layout();
692 if (cur.lastpos() == 0 && !cpar.allowEmpty()) {
693 if (changeDepthAllowed(cur, DEC_DEPTH))
694 changeDepth(cur, DEC_DEPTH);
696 setLayout(cur, tclass.defaultLayoutName());
700 // a layout change may affect also the following paragraph
701 recUndo(cur, cur.pit(), undoSpan(cur.pit()) - 1);
703 // Always break behind a space
704 // It is better to erase the space (Dekel)
705 if (cur.pos() != cur.lastpos() && cpar.isLineSeparator(cur.pos()))
706 cpar.eraseChar(cur.pos(), cur.buffer()->params().trackChanges);
708 // What should the layout for the new paragraph be?
709 bool keep_layout = layout.isEnvironment()
710 || (layout.isParagraph() && layout.parbreak_is_newline);
712 keep_layout = !keep_layout;
714 // We need to remember this before we break the paragraph, because
715 // that invalidates the layout variable
716 bool sensitive = layout.labeltype == LABEL_SENSITIVE;
718 // we need to set this before we insert the paragraph.
719 bool const isempty = cpar.allowEmpty() && cpar.empty();
721 lyx::breakParagraph(*this, cpit, cur.pos(), keep_layout);
723 // After this, neither paragraph contains any rows!
726 pit_type next_par = cpit + 1;
728 // well this is the caption hack since one caption is really enough
731 // set to standard-layout
732 //FIXME Check if this should be plainLayout() in some cases
733 pars_[cpit].applyLayout(tclass.defaultLayout());
735 // set to standard-layout
736 //FIXME Check if this should be plainLayout() in some cases
737 pars_[next_par].applyLayout(tclass.defaultLayout());
740 while (!pars_[next_par].empty() && pars_[next_par].isNewline(0)) {
741 if (!pars_[next_par].eraseChar(0, cur.buffer()->params().trackChanges))
742 break; // the character couldn't be deleted physically due to change tracking
745 // A singlePar update is not enough in this case.
746 cur.screenUpdateFlags(Update::Force);
747 cur.forceBufferUpdate();
749 // This check is necessary. Otherwise the new empty paragraph will
750 // be deleted automatically. And it is more friendly for the user!
751 if (cur.pos() != 0 || isempty)
752 setCursor(cur, cur.pit() + 1, 0);
754 setCursor(cur, cur.pit(), 0);
758 // needed to insert the selection
759 void Text::insertStringAsLines(DocIterator const & dit, docstring const & str,
762 BufferParams const & bparams = owner_->buffer().params();
763 pit_type pit = dit.pit();
764 pos_type pos = dit.pos();
766 // insert the string, don't insert doublespace
767 bool space_inserted = true;
768 for (docstring::const_iterator cit = str.begin();
769 cit != str.end(); ++cit) {
770 Paragraph & par = pars_[pit];
772 if (autoBreakRows_ && (!par.empty() || par.allowEmpty())) {
773 lyx::breakParagraph(*this, pit, pos,
774 par.layout().isEnvironment());
777 space_inserted = true;
781 // do not insert consecutive spaces if !free_spacing
782 } else if ((*cit == ' ' || *cit == '\t') &&
783 space_inserted && !par.isFreeSpacing()) {
785 } else if (*cit == '\t') {
786 if (!par.isFreeSpacing()) {
787 // tabs are like spaces here
788 par.insertChar(pos, ' ', font, bparams.trackChanges);
790 space_inserted = true;
792 par.insertChar(pos, *cit, font, bparams.trackChanges);
794 space_inserted = true;
796 } else if (!isPrintable(*cit)) {
797 // Ignore unprintables
800 // just insert the character
801 par.insertChar(pos, *cit, font, bparams.trackChanges);
803 space_inserted = (*cit == ' ');
809 // turn double CR to single CR, others are converted into one
810 // blank. Then insertStringAsLines is called
811 void Text::insertStringAsParagraphs(DocIterator const & dit, docstring const & str,
814 docstring linestr = str;
815 bool newline_inserted = false;
817 for (string::size_type i = 0, siz = linestr.size(); i < siz; ++i) {
818 if (linestr[i] == '\n') {
819 if (newline_inserted) {
820 // we know that \r will be ignored by
821 // insertStringAsLines. Of course, it is a dirty
822 // trick, but it works...
823 linestr[i - 1] = '\r';
827 newline_inserted = true;
829 } else if (isPrintable(linestr[i])) {
830 newline_inserted = false;
833 insertStringAsLines(dit, linestr, font);
837 // insert a character, moves all the following breaks in the
838 // same Paragraph one to the right and make a rebreak
839 void Text::insertChar(Cursor & cur, char_type c)
841 LASSERT(this == cur.text(), /**/);
843 cur.recordUndo(INSERT_UNDO);
845 TextMetrics const & tm = cur.bv().textMetrics(this);
846 Buffer const & buffer = *cur.buffer();
847 Paragraph & par = cur.paragraph();
848 // try to remove this
849 pit_type const pit = cur.pit();
851 bool const freeSpacing = par.layout().free_spacing ||
854 if (lyxrc.auto_number) {
855 static docstring const number_operators = from_ascii("+-/*");
856 static docstring const number_unary_operators = from_ascii("+-");
857 static docstring const number_seperators = from_ascii(".,:");
859 if (cur.current_font.fontInfo().number() == FONT_ON) {
860 if (!isDigitASCII(c) && !contains(number_operators, c) &&
861 !(contains(number_seperators, c) &&
863 cur.pos() != cur.lastpos() &&
864 tm.displayFont(pit, cur.pos()).fontInfo().number() == FONT_ON &&
865 tm.displayFont(pit, cur.pos() - 1).fontInfo().number() == FONT_ON)
867 number(cur); // Set current_font.number to OFF
868 } else if (isDigitASCII(c) &&
869 cur.real_current_font.isVisibleRightToLeft()) {
870 number(cur); // Set current_font.number to ON
872 if (cur.pos() != 0) {
873 char_type const c = par.getChar(cur.pos() - 1);
874 if (contains(number_unary_operators, c) &&
876 || par.isSeparator(cur.pos() - 2)
877 || par.isNewline(cur.pos() - 2))
879 setCharFont(pit, cur.pos() - 1, cur.current_font,
881 } else if (contains(number_seperators, c)
883 && tm.displayFont(pit, cur.pos() - 2).fontInfo().number() == FONT_ON) {
884 setCharFont(pit, cur.pos() - 1, cur.current_font,
891 // In Bidi text, we want spaces to be treated in a special way: spaces
892 // which are between words in different languages should get the
893 // paragraph's language; otherwise, spaces should keep the language
894 // they were originally typed in. This is only in effect while typing;
895 // after the text is already typed in, the user can always go back and
896 // explicitly set the language of a space as desired. But 99.9% of the
897 // time, what we're doing here is what the user actually meant.
899 // The following cases are the ones in which the language of the space
900 // should be changed to match that of the containing paragraph. In the
901 // depictions, lowercase is LTR, uppercase is RTL, underscore (_)
902 // represents a space, pipe (|) represents the cursor position (so the
903 // character before it is the one just typed in). The different cases
904 // are depicted logically (not visually), from left to right:
909 // Theoretically, there are other situations that we should, perhaps, deal
910 // with (e.g.: a|_A, A|_a). In practice, though, there really isn't any
911 // point (to understand why, just try to create this situation...).
913 if ((cur.pos() >= 2) && (par.isLineSeparator(cur.pos() - 1))) {
914 // get font in front and behind the space in question. But do NOT
915 // use getFont(cur.pos()) because the character c is not inserted yet
916 Font const pre_space_font = tm.displayFont(cur.pit(), cur.pos() - 2);
917 Font const & post_space_font = cur.real_current_font;
918 bool pre_space_rtl = pre_space_font.isVisibleRightToLeft();
919 bool post_space_rtl = post_space_font.isVisibleRightToLeft();
921 if (pre_space_rtl != post_space_rtl) {
922 // Set the space's language to match the language of the
923 // adjacent character whose direction is the paragraph's
924 // direction; don't touch other properties of the font
925 Language const * lang =
926 (pre_space_rtl == par.isRTL(buffer.params())) ?
927 pre_space_font.language() : post_space_font.language();
929 Font space_font = tm.displayFont(cur.pit(), cur.pos() - 1);
930 space_font.setLanguage(lang);
931 par.setFont(cur.pos() - 1, space_font);
935 // Next check, if there will be two blanks together or a blank at
936 // the beginning of a paragraph.
937 // I decided to handle blanks like normal characters, the main
938 // difference are the special checks when calculating the row.fill
939 // (blank does not count at the end of a row) and the check here
941 // When the free-spacing option is set for the current layout,
942 // disable the double-space checking
943 if (!freeSpacing && isLineSeparatorChar(c)) {
944 if (cur.pos() == 0) {
946 "You cannot insert a space at the "
947 "beginning of a paragraph. Please read the Tutorial."));
950 LASSERT(cur.pos() > 0, /**/);
951 if ((par.isLineSeparator(cur.pos() - 1) || par.isNewline(cur.pos() - 1))
952 && !par.isDeleted(cur.pos() - 1)) {
954 "You cannot type two spaces this way. "
955 "Please read the Tutorial."));
960 par.insertChar(cur.pos(), c, cur.current_font,
961 cur.buffer()->params().trackChanges);
962 cur.checkBufferStructure();
964 // cur.screenUpdateFlags(Update::Force);
965 bool boundary = cur.boundary()
966 || tm.isRTLBoundary(cur.pit(), cur.pos() + 1);
967 setCursor(cur, cur.pit(), cur.pos() + 1, false, boundary);
972 void Text::charInserted(Cursor & cur)
974 Paragraph & par = cur.paragraph();
976 // Here we call finishUndo for every 20 characters inserted.
977 // This is from my experience how emacs does it. (Lgb)
978 if (undo_counter_ < 20) {
985 // register word if a non-letter was entered
987 && !par.isWordSeparator(cur.pos() - 2)
988 && par.isWordSeparator(cur.pos() - 1)) {
989 // get the word in front of cursor
990 LASSERT(this == cur.text(), /**/);
991 cur.paragraph().updateWords();
996 // the cursor set functions have a special mechanism. When they
997 // realize, that you left an empty paragraph, they will delete it.
999 bool Text::cursorForwardOneWord(Cursor & cur)
1001 LASSERT(this == cur.text(), /**/);
1003 pos_type const lastpos = cur.lastpos();
1004 pit_type pit = cur.pit();
1005 pos_type pos = cur.pos();
1006 Paragraph const & par = cur.paragraph();
1008 // Paragraph boundary is a word boundary
1009 if (pos == lastpos) {
1010 if (pit != cur.lastpit())
1011 return setCursor(cur, pit + 1, 0);
1016 if (lyxrc.mac_like_word_movement) {
1017 // Skip through trailing punctuation and spaces.
1018 while (pos != lastpos && (par.isChar(pos) || par.isSpace(pos)))
1021 // Skip over either a non-char inset or a full word
1022 if (pos != lastpos && par.isWordSeparator(pos))
1024 else while (pos != lastpos && !par.isWordSeparator(pos))
1027 LASSERT(pos < lastpos, /**/); // see above
1028 if (!par.isWordSeparator(pos))
1029 while (pos != lastpos && !par.isWordSeparator(pos))
1031 else if (par.isChar(pos))
1032 while (pos != lastpos && par.isChar(pos))
1034 else if (!par.isSpace(pos)) // non-char inset
1037 // Skip over white space
1038 while (pos != lastpos && par.isSpace(pos))
1042 return setCursor(cur, pit, pos);
1046 bool Text::cursorBackwardOneWord(Cursor & cur)
1048 LASSERT(this == cur.text(), /**/);
1050 pit_type pit = cur.pit();
1051 pos_type pos = cur.pos();
1052 Paragraph & par = cur.paragraph();
1054 // Paragraph boundary is a word boundary
1055 if (pos == 0 && pit != 0)
1056 return setCursor(cur, pit - 1, getPar(pit - 1).size());
1058 if (lyxrc.mac_like_word_movement) {
1059 // Skip through punctuation and spaces.
1060 while (pos != 0 && (par.isChar(pos - 1) || par.isSpace(pos - 1)))
1063 // Skip over either a non-char inset or a full word
1064 if (pos != 0 && par.isWordSeparator(pos - 1) && !par.isChar(pos - 1))
1066 else while (pos != 0 && !par.isWordSeparator(pos - 1))
1069 // Skip over white space
1070 while (pos != 0 && par.isSpace(pos - 1))
1073 if (pos != 0 && !par.isWordSeparator(pos - 1))
1074 while (pos != 0 && !par.isWordSeparator(pos - 1))
1076 else if (pos != 0 && par.isChar(pos - 1))
1077 while (pos != 0 && par.isChar(pos - 1))
1079 else if (pos != 0 && !par.isSpace(pos - 1)) // non-char inset
1083 return setCursor(cur, pit, pos);
1087 bool Text::cursorVisLeftOneWord(Cursor & cur)
1089 LASSERT(this == cur.text(), /**/);
1091 pos_type left_pos, right_pos;
1092 bool left_is_letter, right_is_letter;
1094 Cursor temp_cur = cur;
1096 // always try to move at least once...
1097 while (temp_cur.posVisLeft(true /* skip_inset */)) {
1099 // collect some information about current cursor position
1100 temp_cur.getSurroundingPos(left_pos, right_pos);
1102 (left_pos > -1 ? !temp_cur.paragraph().isWordSeparator(left_pos) : false);
1104 (right_pos > -1 ? !temp_cur.paragraph().isWordSeparator(right_pos) : false);
1106 // if we're not at a letter/non-letter boundary, continue moving
1107 if (left_is_letter == right_is_letter)
1110 // we should stop when we have an LTR word on our right or an RTL word
1112 if ((left_is_letter && temp_cur.paragraph().getFontSettings(
1113 temp_cur.buffer()->params(), left_pos).isRightToLeft())
1114 || (right_is_letter && !temp_cur.paragraph().getFontSettings(
1115 temp_cur.buffer()->params(), right_pos).isRightToLeft()))
1119 return setCursor(cur, temp_cur.pit(), temp_cur.pos(),
1120 true, temp_cur.boundary());
1124 bool Text::cursorVisRightOneWord(Cursor & cur)
1126 LASSERT(this == cur.text(), /**/);
1128 pos_type left_pos, right_pos;
1129 bool left_is_letter, right_is_letter;
1131 Cursor temp_cur = cur;
1133 // always try to move at least once...
1134 while (temp_cur.posVisRight(true /* skip_inset */)) {
1136 // collect some information about current cursor position
1137 temp_cur.getSurroundingPos(left_pos, right_pos);
1139 (left_pos > -1 ? !temp_cur.paragraph().isWordSeparator(left_pos) : false);
1141 (right_pos > -1 ? !temp_cur.paragraph().isWordSeparator(right_pos) : false);
1143 // if we're not at a letter/non-letter boundary, continue moving
1144 if (left_is_letter == right_is_letter)
1147 // we should stop when we have an LTR word on our right or an RTL word
1149 if ((left_is_letter && temp_cur.paragraph().getFontSettings(
1150 temp_cur.buffer()->params(),
1151 left_pos).isRightToLeft())
1152 || (right_is_letter && !temp_cur.paragraph().getFontSettings(
1153 temp_cur.buffer()->params(),
1154 right_pos).isRightToLeft()))
1158 return setCursor(cur, temp_cur.pit(), temp_cur.pos(),
1159 true, temp_cur.boundary());
1163 void Text::selectWord(Cursor & cur, word_location loc)
1165 LASSERT(this == cur.text(), /**/);
1166 CursorSlice from = cur.top();
1167 CursorSlice to = cur.top();
1168 getWord(from, to, loc);
1169 if (cur.top() != from)
1170 setCursor(cur, from.pit(), from.pos());
1173 if (!cur.selection())
1175 setCursor(cur, to.pit(), to.pos());
1177 cur.setWordSelection(true);
1181 void Text::selectAll(Cursor & cur)
1183 LASSERT(this == cur.text(), /**/);
1184 if (cur.lastpos() == 0 && cur.lastpit() == 0)
1186 // If the cursor is at the beginning, make sure the cursor ends there
1187 if (cur.pit() == 0 && cur.pos() == 0) {
1188 setCursor(cur, cur.lastpit(), getPar(cur.lastpit()).size());
1190 setCursor(cur, 0, 0);
1192 setCursor(cur, 0, 0);
1194 setCursor(cur, cur.lastpit(), getPar(cur.lastpit()).size());
1200 // Select the word currently under the cursor when no
1201 // selection is currently set
1202 bool Text::selectWordWhenUnderCursor(Cursor & cur, word_location loc)
1204 LASSERT(this == cur.text(), /**/);
1205 if (cur.selection())
1207 selectWord(cur, loc);
1208 return cur.selection();
1212 void Text::acceptOrRejectChanges(Cursor & cur, ChangeOp op)
1214 LASSERT(this == cur.text(), /**/);
1216 if (!cur.selection()) {
1217 bool const changed = cur.paragraph().isChanged(cur.pos());
1218 if (!(changed && findNextChange(&cur.bv())))
1222 cur.recordUndoSelection();
1224 pit_type begPit = cur.selectionBegin().pit();
1225 pit_type endPit = cur.selectionEnd().pit();
1227 pos_type begPos = cur.selectionBegin().pos();
1228 pos_type endPos = cur.selectionEnd().pos();
1230 // keep selection info, because endPos becomes invalid after the first loop
1231 bool endsBeforeEndOfPar = (endPos < pars_[endPit].size());
1233 // first, accept/reject changes within each individual paragraph (do not consider end-of-par)
1235 for (pit_type pit = begPit; pit <= endPit; ++pit) {
1236 pos_type parSize = pars_[pit].size();
1238 // ignore empty paragraphs; otherwise, an assertion will fail for
1239 // acceptChanges(bparams, 0, 0) or rejectChanges(bparams, 0, 0)
1243 // do not consider first paragraph if the cursor starts at pos size()
1244 if (pit == begPit && begPos == parSize)
1247 // do not consider last paragraph if the cursor ends at pos 0
1248 if (pit == endPit && endPos == 0)
1249 break; // last iteration anyway
1251 pos_type left = (pit == begPit ? begPos : 0);
1252 pos_type right = (pit == endPit ? endPos : parSize);
1255 pars_[pit].acceptChanges(left, right);
1257 pars_[pit].rejectChanges(left, right);
1261 // next, accept/reject imaginary end-of-par characters
1263 for (pit_type pit = begPit; pit <= endPit; ++pit) {
1264 pos_type pos = pars_[pit].size();
1266 // skip if the selection ends before the end-of-par
1267 if (pit == endPit && endsBeforeEndOfPar)
1268 break; // last iteration anyway
1270 // skip if this is not the last paragraph of the document
1271 // note: the user should be able to accept/reject the par break of the last par!
1272 if (pit == endPit && pit + 1 != int(pars_.size()))
1273 break; // last iteration anway
1276 if (pars_[pit].isInserted(pos)) {
1277 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1278 } else if (pars_[pit].isDeleted(pos)) {
1279 if (pit + 1 == int(pars_.size())) {
1280 // we cannot remove a par break at the end of the last paragraph;
1281 // instead, we mark it unchanged
1282 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1284 mergeParagraph(cur.buffer()->params(), pars_, pit);
1290 if (pars_[pit].isDeleted(pos)) {
1291 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1292 } else if (pars_[pit].isInserted(pos)) {
1293 if (pit + 1 == int(pars_.size())) {
1294 // we mark the par break at the end of the last paragraph unchanged
1295 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1297 mergeParagraph(cur.buffer()->params(), pars_, pit);
1305 // finally, invoke the DEPM
1307 deleteEmptyParagraphMechanism(begPit, endPit, cur.buffer()->params().trackChanges);
1312 cur.clearSelection();
1313 setCursorIntern(cur, begPit, begPos);
1314 cur.screenUpdateFlags(Update::Force);
1315 cur.forceBufferUpdate();
1319 void Text::acceptChanges()
1321 BufferParams const & bparams = owner_->buffer().params();
1322 lyx::acceptChanges(pars_, bparams);
1323 deleteEmptyParagraphMechanism(0, pars_.size() - 1, bparams.trackChanges);
1327 void Text::rejectChanges()
1329 BufferParams const & bparams = owner_->buffer().params();
1330 pit_type pars_size = static_cast<pit_type>(pars_.size());
1332 // first, reject changes within each individual paragraph
1333 // (do not consider end-of-par)
1334 for (pit_type pit = 0; pit < pars_size; ++pit) {
1335 if (!pars_[pit].empty()) // prevent assertion failure
1336 pars_[pit].rejectChanges(0, pars_[pit].size());
1339 // next, reject imaginary end-of-par characters
1340 for (pit_type pit = 0; pit < pars_size; ++pit) {
1341 pos_type pos = pars_[pit].size();
1343 if (pars_[pit].isDeleted(pos)) {
1344 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1345 } else if (pars_[pit].isInserted(pos)) {
1346 if (pit == pars_size - 1) {
1347 // we mark the par break at the end of the last
1348 // paragraph unchanged
1349 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1351 mergeParagraph(bparams, pars_, pit);
1358 // finally, invoke the DEPM
1359 deleteEmptyParagraphMechanism(0, pars_size - 1, bparams.trackChanges);
1363 void Text::deleteWordForward(Cursor & cur)
1365 LASSERT(this == cur.text(), /**/);
1366 if (cur.lastpos() == 0)
1370 cur.setSelection(true);
1371 cursorForwardOneWord(cur);
1373 cutSelection(cur, true, false);
1374 cur.checkBufferStructure();
1379 void Text::deleteWordBackward(Cursor & cur)
1381 LASSERT(this == cur.text(), /**/);
1382 if (cur.lastpos() == 0)
1383 cursorBackward(cur);
1386 cur.setSelection(true);
1387 cursorBackwardOneWord(cur);
1389 cutSelection(cur, true, false);
1390 cur.checkBufferStructure();
1395 // Kill to end of line.
1396 void Text::changeCase(Cursor & cur, TextCase action)
1398 LASSERT(this == cur.text(), /**/);
1402 bool gotsel = false;
1403 if (cur.selection()) {
1404 from = cur.selBegin();
1409 getWord(from, to, PARTIAL_WORD);
1410 cursorForwardOneWord(cur);
1413 cur.recordUndoSelection();
1415 pit_type begPit = from.pit();
1416 pit_type endPit = to.pit();
1418 pos_type begPos = from.pos();
1419 pos_type endPos = to.pos();
1421 pos_type right = 0; // needed after the for loop
1423 for (pit_type pit = begPit; pit <= endPit; ++pit) {
1424 Paragraph & par = pars_[pit];
1425 pos_type const pos = (pit == begPit ? begPos : 0);
1426 right = (pit == endPit ? endPos : par.size());
1427 par.changeCase(cur.buffer()->params(), pos, right, action);
1430 // the selection may have changed due to logically-only deleted chars
1432 setCursor(cur, begPit, begPos);
1434 setCursor(cur, endPit, right);
1437 setCursor(cur, endPit, right);
1439 cur.checkBufferStructure();
1443 bool Text::handleBibitems(Cursor & cur)
1445 if (cur.paragraph().layout().labeltype != LABEL_BIBLIO)
1451 BufferParams const & bufparams = cur.buffer()->params();
1452 Paragraph const & par = cur.paragraph();
1453 Cursor prevcur = cur;
1454 if (cur.pit() > 0) {
1456 prevcur.pos() = prevcur.lastpos();
1458 Paragraph const & prevpar = prevcur.paragraph();
1460 // if a bibitem is deleted, merge with previous paragraph
1461 // if this is a bibliography item as well
1462 if (cur.pit() > 0 && par.layout() == prevpar.layout()) {
1463 cur.recordUndo(ATOMIC_UNDO, prevcur.pit());
1464 mergeParagraph(bufparams, cur.text()->paragraphs(),
1466 cur.forceBufferUpdate();
1467 setCursorIntern(cur, prevcur.pit(), prevcur.pos());
1468 cur.screenUpdateFlags(Update::Force);
1472 // otherwise reset to default
1473 cur.paragraph().setPlainOrDefaultLayout(bufparams.documentClass());
1478 bool Text::erase(Cursor & cur)
1480 LASSERT(this == cur.text(), return false);
1481 bool needsUpdate = false;
1482 Paragraph & par = cur.paragraph();
1484 if (cur.pos() != cur.lastpos()) {
1485 // this is the code for a normal delete, not pasting
1487 cur.recordUndo(DELETE_UNDO);
1488 bool const was_inset = cur.paragraph().isInset(cur.pos());
1489 if(!par.eraseChar(cur.pos(), cur.buffer()->params().trackChanges))
1490 // the character has been logically deleted only => skip it
1491 cur.top().forwardPos();
1494 cur.forceBufferUpdate();
1496 cur.checkBufferStructure();
1499 if (cur.pit() == cur.lastpit())
1500 return dissolveInset(cur);
1502 if (!par.isMergedOnEndOfParDeletion(cur.buffer()->params().trackChanges)) {
1503 par.setChange(cur.pos(), Change(Change::DELETED));
1507 setCursorIntern(cur, cur.pit() + 1, 0);
1508 needsUpdate = backspacePos0(cur);
1512 needsUpdate |= handleBibitems(cur);
1515 // Make sure the cursor is correct. Is this really needed?
1516 // No, not really... at least not here!
1517 cur.text()->setCursor(cur.top(), cur.pit(), cur.pos());
1518 cur.checkBufferStructure();
1525 bool Text::backspacePos0(Cursor & cur)
1527 LASSERT(this == cur.text(), /**/);
1531 bool needsUpdate = false;
1533 BufferParams const & bufparams = cur.buffer()->params();
1534 DocumentClass const & tclass = bufparams.documentClass();
1535 ParagraphList & plist = cur.text()->paragraphs();
1536 Paragraph const & par = cur.paragraph();
1537 Cursor prevcur = cur;
1539 prevcur.pos() = prevcur.lastpos();
1540 Paragraph const & prevpar = prevcur.paragraph();
1542 // is it an empty paragraph?
1543 if (cur.lastpos() == 0
1544 || (cur.lastpos() == 1 && par.isSeparator(0))) {
1545 cur.recordUndo(ATOMIC_UNDO, prevcur.pit(), cur.pit());
1546 plist.erase(boost::next(plist.begin(), cur.pit()));
1549 // is previous par empty?
1550 else if (prevcur.lastpos() == 0
1551 || (prevcur.lastpos() == 1 && prevpar.isSeparator(0))) {
1552 cur.recordUndo(ATOMIC_UNDO, prevcur.pit(), cur.pit());
1553 plist.erase(boost::next(plist.begin(), prevcur.pit()));
1556 // Pasting is not allowed, if the paragraphs have different
1557 // layouts. I think it is a real bug of all other
1558 // word processors to allow it. It confuses the user.
1559 // Correction: Pasting is always allowed with standard-layout
1560 // or the empty layout.
1561 else if (par.layout() == prevpar.layout()
1562 || tclass.isDefaultLayout(par.layout())
1563 || tclass.isPlainLayout(par.layout())) {
1564 cur.recordUndo(ATOMIC_UNDO, prevcur.pit());
1565 mergeParagraph(bufparams, plist, prevcur.pit());
1570 cur.forceBufferUpdate();
1571 setCursorIntern(cur, prevcur.pit(), prevcur.pos());
1578 bool Text::backspace(Cursor & cur)
1580 LASSERT(this == cur.text(), /**/);
1581 bool needsUpdate = false;
1582 if (cur.pos() == 0) {
1584 return dissolveInset(cur);
1586 Paragraph & prev_par = pars_[cur.pit() - 1];
1588 if (!prev_par.isMergedOnEndOfParDeletion(cur.buffer()->params().trackChanges)) {
1589 prev_par.setChange(prev_par.size(), Change(Change::DELETED));
1590 setCursorIntern(cur, cur.pit() - 1, prev_par.size());
1593 // The cursor is at the beginning of a paragraph, so
1594 // the backspace will collapse two paragraphs into one.
1595 needsUpdate = backspacePos0(cur);
1598 // this is the code for a normal backspace, not pasting
1600 cur.recordUndo(DELETE_UNDO);
1601 // We used to do cursorBackwardIntern() here, but it is
1602 // not a good idea since it triggers the auto-delete
1603 // mechanism. So we do a cursorBackwardIntern()-lite,
1604 // without the dreaded mechanism. (JMarc)
1605 setCursorIntern(cur, cur.pit(), cur.pos() - 1,
1606 false, cur.boundary());
1607 bool const was_inset = cur.paragraph().isInset(cur.pos());
1608 cur.paragraph().eraseChar(cur.pos(), cur.buffer()->params().trackChanges);
1610 cur.forceBufferUpdate();
1612 cur.checkBufferStructure();
1615 if (cur.pos() == cur.lastpos())
1616 cur.setCurrentFont();
1618 needsUpdate |= handleBibitems(cur);
1620 // A singlePar update is not enough in this case.
1621 // cur.screenUpdateFlags(Update::Force);
1622 setCursor(cur.top(), cur.pit(), cur.pos());
1628 bool Text::dissolveInset(Cursor & cur)
1630 LASSERT(this == cur.text(), return false);
1632 if (isMainText() || cur.inset().nargs() != 1)
1635 cur.recordUndoInset();
1637 cur.selHandle(false);
1639 pos_type spos = cur.pos();
1640 pit_type spit = cur.pit();
1641 ParagraphList plist;
1642 if (cur.lastpit() != 0 || cur.lastpos() != 0)
1643 plist = paragraphs();
1645 // store cursor offset
1649 Buffer & b = *cur.buffer();
1650 cur.paragraph().eraseChar(cur.pos(), b.params().trackChanges);
1652 if (!plist.empty()) {
1654 // we clear the cache so that we won't get conflicts with labels
1655 // that get pasted into the buffer. we should update this before
1656 // its being empty matters. if not (i.e., if we encounter bugs),
1657 // then this should instead be:
1658 // cur.buffer().updateBuffer();
1659 // but we'll try the cheaper solution here.
1660 cur.buffer()->clearReferenceCache();
1662 // ERT paragraphs have the Language latex_language.
1663 // This is invalid outside of ERT, so we need to
1664 // change it to the buffer language.
1665 ParagraphList::iterator it = plist.begin();
1666 ParagraphList::iterator it_end = plist.end();
1667 for (; it != it_end; it++)
1668 it->changeLanguage(b.params(), latex_language, b.language());
1670 pasteParagraphList(cur, plist, b.params().documentClassPtr(),
1671 b.errorList("Paste"));
1673 cur.pit() = min(cur.lastpit(), spit);
1674 cur.pos() = min(cur.lastpos(), spos);
1677 cur.forceBufferUpdate();
1679 // Ensure the current language is set correctly (bug 6292)
1680 cur.text()->setCursor(cur, cur.pit(), cur.pos());
1681 cur.clearSelection();
1687 void Text::getWord(CursorSlice & from, CursorSlice & to,
1688 word_location const loc) const
1691 pars_[to.pit()].locateWord(from.pos(), to.pos(), loc);
1695 void Text::write(ostream & os) const
1697 Buffer const & buf = owner_->buffer();
1698 ParagraphList::const_iterator pit = paragraphs().begin();
1699 ParagraphList::const_iterator end = paragraphs().end();
1701 for (; pit != end; ++pit)
1702 pit->write(os, buf.params(), dth);
1704 // Close begin_deeper
1705 for(; dth > 0; --dth)
1706 os << "\n\\end_deeper";
1710 bool Text::read(Lexer & lex,
1711 ErrorList & errorList, InsetText * insetPtr)
1713 Buffer const & buf = owner_->buffer();
1714 depth_type depth = 0;
1717 while (lex.isOK()) {
1719 string const token = lex.getString();
1724 if (token == "\\end_inset")
1727 if (token == "\\end_body")
1730 if (token == "\\begin_body")
1733 if (token == "\\end_document") {
1738 if (token == "\\begin_layout") {
1739 lex.pushToken(token);
1742 par.setInsetOwner(insetPtr);
1743 par.params().depth(depth);
1744 par.setFont(0, Font(inherit_font, buf.params().language));
1745 pars_.push_back(par);
1746 readParagraph(pars_.back(), lex, errorList);
1748 // register the words in the global word list
1749 pars_.back().updateWords();
1750 } else if (token == "\\begin_deeper") {
1752 } else if (token == "\\end_deeper") {
1754 lex.printError("\\end_deeper: " "depth is already null");
1758 LYXERR0("Handling unknown body token: `" << token << '\'');
1762 // avoid a crash on weird documents (bug 4859)
1763 if (pars_.empty()) {
1765 par.setInsetOwner(insetPtr);
1766 par.params().depth(depth);
1767 par.setFont(0, Font(inherit_font,
1768 buf.params().language));
1769 par.setPlainOrDefaultLayout(buf.params().documentClass());
1770 pars_.push_back(par);
1776 // Returns the current font and depth as a message.
1777 docstring Text::currentState(Cursor const & cur) const
1779 LASSERT(this == cur.text(), /**/);
1780 Buffer & buf = *cur.buffer();
1781 Paragraph const & par = cur.paragraph();
1782 odocstringstream os;
1784 if (buf.params().trackChanges)
1785 os << _("[Change Tracking] ");
1787 Change change = par.lookupChange(cur.pos());
1789 if (change.changed()) {
1790 Author const & a = buf.params().authors().get(change.author);
1791 os << _("Change: ") << a.name();
1792 if (!a.email().empty())
1793 os << " (" << a.email() << ")";
1794 // FIXME ctime is english, we should translate that
1795 os << _(" at ") << ctime(&change.changetime);
1799 // I think we should only show changes from the default
1801 // No, from the document font (MV)
1802 Font font = cur.real_current_font;
1803 font.fontInfo().reduce(buf.params().getFont().fontInfo());
1805 os << bformat(_("Font: %1$s"), font.stateText(&buf.params()));
1807 // The paragraph depth
1808 int depth = cur.paragraph().getDepth();
1810 os << bformat(_(", Depth: %1$d"), depth);
1812 // The paragraph spacing, but only if different from
1814 Spacing const & spacing = par.params().spacing();
1815 if (!spacing.isDefault()) {
1816 os << _(", Spacing: ");
1817 switch (spacing.getSpace()) {
1818 case Spacing::Single:
1821 case Spacing::Onehalf:
1824 case Spacing::Double:
1827 case Spacing::Other:
1828 os << _("Other (") << from_ascii(spacing.getValueAsString()) << ')';
1830 case Spacing::Default:
1831 // should never happen, do nothing
1836 #ifdef DEVEL_VERSION
1837 os << _(", Inset: ") << &cur.inset();
1838 os << _(", Paragraph: ") << cur.pit();
1839 os << _(", Id: ") << par.id();
1840 os << _(", Position: ") << cur.pos();
1841 // FIXME: Why is the check for par.size() needed?
1842 // We are called with cur.pos() == par.size() quite often.
1843 if (!par.empty() && cur.pos() < par.size()) {
1844 // Force output of code point, not character
1845 size_t const c = par.getChar(cur.pos());
1846 os << _(", Char: 0x") << hex << c;
1848 os << _(", Boundary: ") << cur.boundary();
1849 // Row & row = cur.textRow();
1850 // os << bformat(_(", Row b:%1$d e:%2$d"), row.pos(), row.endpos());
1856 docstring Text::getPossibleLabel(Cursor const & cur) const
1858 pit_type pit = cur.pit();
1860 Layout const * layout = &(pars_[pit].layout());
1863 docstring par_text = pars_[pit].asString();
1865 // The return string of math matrices might contain linebreaks
1866 par_text = subst(par_text, '\n', '-');
1867 int const numwords = 3;
1868 for (int i = 0; i < numwords; ++i) {
1869 if (par_text.empty())
1872 par_text = split(par_text, head, ' ');
1873 // Is it legal to use spaces in labels ?
1879 // Make sure it isn't too long
1880 unsigned int const max_label_length = 32;
1881 if (text.size() > max_label_length)
1882 text.resize(max_label_length);
1884 // Will contain the label prefix.
1887 // For section, subsection, etc...
1888 if (layout->latextype == LATEX_PARAGRAPH && pit != 0) {
1889 Layout const * layout2 = &(pars_[pit - 1].layout());
1890 if (layout2->latextype != LATEX_PARAGRAPH) {
1895 if (layout->latextype != LATEX_PARAGRAPH)
1896 name = layout->refprefix;
1898 // For captions, we just take the caption type
1899 Inset * caption_inset = cur.innerInsetOfType(CAPTION_CODE);
1900 if (caption_inset) {
1901 string const & ftype = static_cast<InsetCaption *>(caption_inset)->type();
1902 FloatList const & fl = cur.buffer()->params().documentClass().floats();
1903 if (fl.typeExist(ftype)) {
1904 Floating const & flt = fl.getType(ftype);
1905 name = from_utf8(flt.refPrefix());
1908 name = from_utf8(ftype.substr(0,3));
1911 // If none of the above worked, see if the inset knows.
1913 InsetLayout const & il = cur.inset().getLayout();
1914 name = il.refprefix();
1918 text = name + ':' + text;
1924 docstring Text::asString(int options) const
1926 return asString(0, pars_.size(), options);
1930 docstring Text::asString(pit_type beg, pit_type end, int options) const
1932 size_t i = size_t(beg);
1933 docstring str = pars_[i].asString(options);
1934 for (++i; i != size_t(end); ++i) {
1936 str += pars_[i].asString(options);
1942 void Text::forToc(docstring & os, size_t maxlen, bool shorten) const
1944 LASSERT(maxlen > 10, maxlen = 30);
1945 for (size_t i = 0; i != pars_.size() && os.length() < maxlen; ++i)
1946 pars_[i].forToc(os, maxlen);
1947 if (shorten && os.length() >= maxlen)
1948 os = os.substr(0, maxlen - 3) + from_ascii("...");
1952 void Text::charsTranspose(Cursor & cur)
1954 LASSERT(this == cur.text(), /**/);
1956 pos_type pos = cur.pos();
1958 // If cursor is at beginning or end of paragraph, do nothing.
1959 if (pos == cur.lastpos() || pos == 0)
1962 Paragraph & par = cur.paragraph();
1964 // Get the positions of the characters to be transposed.
1965 pos_type pos1 = pos - 1;
1966 pos_type pos2 = pos;
1968 // In change tracking mode, ignore deleted characters.
1969 while (pos2 < cur.lastpos() && par.isDeleted(pos2))
1971 if (pos2 == cur.lastpos())
1974 while (pos1 >= 0 && par.isDeleted(pos1))
1979 // Don't do anything if one of the "characters" is not regular text.
1980 if (par.isInset(pos1) || par.isInset(pos2))
1983 // Store the characters to be transposed (including font information).
1984 char_type const char1 = par.getChar(pos1);
1986 par.getFontSettings(cur.buffer()->params(), pos1);
1988 char_type const char2 = par.getChar(pos2);
1990 par.getFontSettings(cur.buffer()->params(), pos2);
1992 // And finally, we are ready to perform the transposition.
1993 // Track the changes if Change Tracking is enabled.
1994 bool const trackChanges = cur.buffer()->params().trackChanges;
1998 par.eraseChar(pos2, trackChanges);
1999 par.eraseChar(pos1, trackChanges);
2000 par.insertChar(pos1, char2, font2, trackChanges);
2001 par.insertChar(pos2, char1, font1, trackChanges);
2003 cur.checkBufferStructure();
2005 // After the transposition, move cursor to after the transposition.
2006 setCursor(cur, cur.pit(), pos2);
2011 DocIterator Text::macrocontextPosition() const
2013 return macrocontext_position_;
2017 void Text::setMacrocontextPosition(DocIterator const & pos)
2019 macrocontext_position_ = pos;
2023 docstring Text::previousWord(CursorSlice const & sl) const
2025 CursorSlice from = sl;
2026 CursorSlice to = sl;
2027 getWord(from, to, PREVIOUS_WORD);
2028 if (sl == from || to == from)
2031 Paragraph const & par = sl.paragraph();
2032 return par.asString(from.pos(), to.pos());
2036 bool Text::completionSupported(Cursor const & cur) const
2038 Paragraph const & par = cur.paragraph();
2039 return cur.pos() > 0
2040 && (cur.pos() >= par.size() || par.isWordSeparator(cur.pos()))
2041 && !par.isWordSeparator(cur.pos() - 1);
2045 CompletionList const * Text::createCompletionList(Cursor const & cur) const
2047 WordList const * list = theWordList(*cur.getFont().language());
2048 return new TextCompletionList(cur, list);
2052 bool Text::insertCompletion(Cursor & cur, docstring const & s, bool /*finished*/)
2054 LASSERT(cur.bv().cursor() == cur, /**/);
2056 cur.bv().cursor() = cur;
2057 if (!(cur.result().screenUpdate() & Update::Force))
2058 cur.screenUpdateFlags(cur.result().screenUpdate() | Update::SinglePar);
2063 docstring Text::completionPrefix(Cursor const & cur) const
2065 return previousWord(cur.top());