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 bool const added_one = tclass.addLayoutIfNeeded(layoutname);
362 docstring const s = bformat(_("Layout `%1$s' was not found."), layoutname);
364 ErrorItem(_("Layout Not Found"), s, par.id(), 0, par.size()));
367 par.setLayout(bp.documentClass()[layoutname]);
369 // Test whether the layout is obsolete.
370 Layout const & layout = par.layout();
371 if (!layout.obsoleted_by().empty())
372 par.setLayout(bp.documentClass()[layout.obsoleted_by()]);
374 par.params().read(lex);
376 } else if (token == "\\end_layout") {
377 LYXERR0("Solitary \\end_layout in line " << lex.lineNumber() << "\n"
378 << "Missing \\begin_layout ?");
379 } else if (token == "\\end_inset") {
380 LYXERR0("Solitary \\end_inset in line " << lex.lineNumber() << "\n"
381 << "Missing \\begin_inset ?");
382 } else if (token == "\\begin_inset") {
383 Inset * inset = readInset(lex, buf);
385 par.insertInset(par.size(), inset, font, change);
388 docstring line = lex.getDocString();
389 errorList.push_back(ErrorItem(_("Unknown Inset"), line,
390 par.id(), 0, par.size()));
392 } else if (token == "\\family") {
394 setLyXFamily(lex.getString(), font.fontInfo());
395 } else if (token == "\\series") {
397 setLyXSeries(lex.getString(), font.fontInfo());
398 } else if (token == "\\shape") {
400 setLyXShape(lex.getString(), font.fontInfo());
401 } else if (token == "\\size") {
403 setLyXSize(lex.getString(), font.fontInfo());
404 } else if (token == "\\lang") {
406 string const tok = lex.getString();
407 Language const * lang = languages.getLanguage(tok);
409 font.setLanguage(lang);
411 font.setLanguage(bp.language);
412 lex.printError("Unknown language `$$Token'");
414 } else if (token == "\\numeric") {
416 font.fontInfo().setNumber(setLyXMisc(lex.getString()));
417 } else if (token == "\\emph") {
419 font.fontInfo().setEmph(setLyXMisc(lex.getString()));
420 } else if (token == "\\bar") {
422 string const tok = lex.getString();
425 font.fontInfo().setUnderbar(FONT_ON);
426 else if (tok == "no")
427 font.fontInfo().setUnderbar(FONT_OFF);
428 else if (tok == "default")
429 font.fontInfo().setUnderbar(FONT_INHERIT);
431 lex.printError("Unknown bar font flag "
433 } else if (token == "\\strikeout") {
435 font.fontInfo().setStrikeout(setLyXMisc(lex.getString()));
436 } else if (token == "\\uuline") {
438 font.fontInfo().setUuline(setLyXMisc(lex.getString()));
439 } else if (token == "\\uwave") {
441 font.fontInfo().setUwave(setLyXMisc(lex.getString()));
442 } else if (token == "\\noun") {
444 font.fontInfo().setNoun(setLyXMisc(lex.getString()));
445 } else if (token == "\\color") {
447 setLyXColor(lex.getString(), font.fontInfo());
448 } else if (token == "\\SpecialChar") {
449 auto_ptr<Inset> inset;
450 inset.reset(new InsetSpecialChar);
452 inset->setBuffer(*buf);
453 par.insertInset(par.size(), inset.release(), font, change);
454 } else if (token == "\\backslash") {
455 par.appendChar('\\', font, change);
456 } else if (token == "\\LyXTable") {
457 auto_ptr<Inset> inset(new InsetTabular(buf));
459 par.insertInset(par.size(), inset.release(), font, change);
460 } else if (token == "\\change_unchanged") {
461 change = Change(Change::UNCHANGED);
462 } else if (token == "\\change_inserted" || token == "\\change_deleted") {
464 istringstream is(lex.getString());
468 BufferParams::AuthorMap const & am = bp.author_map;
469 if (am.find(aid) == am.end()) {
470 errorList.push_back(ErrorItem(_("Change tracking error"),
471 bformat(_("Unknown author index for change: %1$d\n"), aid),
472 par.id(), 0, par.size()));
473 change = Change(Change::UNCHANGED);
475 if (token == "\\change_inserted")
476 change = Change(Change::INSERTED, am.find(aid)->second, ct);
478 change = Change(Change::DELETED, am.find(aid)->second, ct);
482 errorList.push_back(ErrorItem(_("Unknown token"),
483 bformat(_("Unknown token: %1$s %2$s\n"), from_utf8(token),
485 par.id(), 0, par.size()));
490 void Text::readParagraph(Paragraph & par, Lexer & lex,
491 ErrorList & errorList)
494 string token = lex.getString();
496 Change change(Change::UNCHANGED);
499 readParToken(par, lex, token, font, change, errorList);
502 token = lex.getString();
507 if (token == "\\end_layout") {
508 //Ok, paragraph finished
512 LYXERR(Debug::PARSER, "Handling paragraph token: `" << token << '\'');
513 if (token == "\\begin_layout" || token == "\\end_document"
514 || token == "\\end_inset" || token == "\\begin_deeper"
515 || token == "\\end_deeper") {
516 lex.pushToken(token);
517 lyxerr << "Paragraph ended in line "
518 << lex.lineNumber() << "\n"
519 << "Missing \\end_layout.\n";
523 // Final change goes to paragraph break:
524 par.setChange(par.size(), change);
526 // Initialize begin_of_body_ on load; redoParagraph maintains
527 par.setBeginOfBody();
529 // mark paragraph for spell checking on load
530 // par.requestSpellCheck();
534 class TextCompletionList : public CompletionList
538 TextCompletionList(Cursor const & cur, WordList const * list)
539 : buffer_(cur.buffer()), pos_(0), list_(list)
542 virtual ~TextCompletionList() {}
545 virtual bool sorted() const { return true; }
547 virtual size_t size() const
549 return list_->size();
552 virtual docstring const & data(size_t idx) const
554 return list_->word(idx);
559 Buffer const * buffer_;
563 WordList const * list_;
567 bool Text::empty() const
569 return pars_.empty() || (pars_.size() == 1 && pars_[0].empty()
570 // FIXME: Should we consider the labeled type as empty too?
571 && pars_[0].layout().labeltype == LABEL_NO_LABEL);
575 double Text::spacing(Paragraph const & par) const
577 if (par.params().spacing().isDefault())
578 return owner_->buffer().params().spacing().getValue();
579 return par.params().spacing().getValue();
584 * This breaks a paragraph at the specified position.
585 * The new paragraph will:
586 * - Decrease depth by one (or change layout to default layout) when
587 * keep_layout == false
588 * - keep current depth and layout when keep_layout == true
590 static void breakParagraph(Text & text, pit_type par_offset, pos_type pos,
593 BufferParams const & bparams = text.inset().buffer().params();
594 ParagraphList & pars = text.paragraphs();
595 // create a new paragraph, and insert into the list
596 ParagraphList::iterator tmp =
597 pars.insert(boost::next(pars.begin(), par_offset + 1),
600 Paragraph & par = pars[par_offset];
602 // remember to set the inset_owner
603 tmp->setInsetOwner(&par.inInset());
604 // without doing that we get a crash when typing <Return> at the
605 // end of a paragraph
606 tmp->setPlainOrDefaultLayout(bparams.documentClass());
609 tmp->setLayout(par.layout());
610 tmp->setLabelWidthString(par.params().labelWidthString());
611 tmp->params().depth(par.params().depth());
612 } else if (par.params().depth() > 0) {
613 Paragraph const & hook = pars[text.outerHook(par_offset)];
614 tmp->setLayout(hook.layout());
615 // not sure the line below is useful
616 tmp->setLabelWidthString(par.params().labelWidthString());
617 tmp->params().depth(hook.params().depth());
620 bool const isempty = (par.allowEmpty() && par.empty());
622 if (!isempty && (par.size() > pos || par.empty())) {
623 tmp->setLayout(par.layout());
624 tmp->params().align(par.params().align());
625 tmp->setLabelWidthString(par.params().labelWidthString());
627 tmp->params().depth(par.params().depth());
628 tmp->params().noindent(par.params().noindent());
630 // move everything behind the break position
631 // to the new paragraph
633 /* Note: if !keepempty, empty() == true, then we reach
634 * here with size() == 0. So pos_end becomes - 1. This
635 * doesn't cause problems because both loops below
636 * enforce pos <= pos_end and 0 <= pos
638 pos_type pos_end = par.size() - 1;
640 for (pos_type i = pos, j = 0; i <= pos_end; ++i) {
641 if (moveItem(par, pos, *tmp, j, bparams)) {
647 // Move over the end-of-par change information
648 tmp->setChange(tmp->size(), par.lookupChange(par.size()));
649 par.setChange(par.size(), Change(bparams.trackChanges ?
650 Change::INSERTED : Change::UNCHANGED));
653 // Make sure that we keep the language when
654 // breaking paragraph.
656 Font changed = tmp->getFirstFontSettings(bparams);
657 Font const & old = par.getFontSettings(bparams, par.size());
658 changed.setLanguage(old.language());
659 tmp->setFont(0, changed);
666 bool const soa = par.params().startOfAppendix();
667 par.params().clear();
668 // do not lose start of appendix marker (bug 4212)
669 par.params().startOfAppendix(soa);
670 par.setPlainOrDefaultLayout(bparams.documentClass());
674 par.setLayout(tmp->layout());
675 par.setLabelWidthString(tmp->params().labelWidthString());
676 par.params().depth(tmp->params().depth());
681 void Text::breakParagraph(Cursor & cur, bool inverse_logic)
683 LASSERT(this == cur.text(), /**/);
685 Paragraph & cpar = cur.paragraph();
686 pit_type cpit = cur.pit();
688 DocumentClass const & tclass = cur.buffer()->params().documentClass();
689 Layout const & layout = cpar.layout();
691 if (cur.lastpos() == 0 && !cpar.allowEmpty()) {
692 if (changeDepthAllowed(cur, DEC_DEPTH))
693 changeDepth(cur, DEC_DEPTH);
695 setLayout(cur, tclass.defaultLayoutName());
699 // a layout change may affect also the following paragraph
700 recUndo(cur, cur.pit(), undoSpan(cur.pit()) - 1);
702 // Always break behind a space
703 // It is better to erase the space (Dekel)
704 if (cur.pos() != cur.lastpos() && cpar.isLineSeparator(cur.pos()))
705 cpar.eraseChar(cur.pos(), cur.buffer()->params().trackChanges);
707 // What should the layout for the new paragraph be?
708 bool keep_layout = layout.isEnvironment()
709 || (layout.isParagraph() && layout.parbreak_is_newline);
711 keep_layout = !keep_layout;
713 // We need to remember this before we break the paragraph, because
714 // that invalidates the layout variable
715 bool sensitive = layout.labeltype == LABEL_SENSITIVE;
717 // we need to set this before we insert the paragraph.
718 bool const isempty = cpar.allowEmpty() && cpar.empty();
720 lyx::breakParagraph(*this, cpit, cur.pos(), keep_layout);
722 // After this, neither paragraph contains any rows!
725 pit_type next_par = cpit + 1;
727 // well this is the caption hack since one caption is really enough
730 // set to standard-layout
731 //FIXME Check if this should be plainLayout() in some cases
732 pars_[cpit].applyLayout(tclass.defaultLayout());
734 // set to standard-layout
735 //FIXME Check if this should be plainLayout() in some cases
736 pars_[next_par].applyLayout(tclass.defaultLayout());
739 while (!pars_[next_par].empty() && pars_[next_par].isNewline(0)) {
740 if (!pars_[next_par].eraseChar(0, cur.buffer()->params().trackChanges))
741 break; // the character couldn't be deleted physically due to change tracking
744 // A singlePar update is not enough in this case.
745 cur.screenUpdateFlags(Update::Force);
746 cur.forceBufferUpdate();
748 // This check is necessary. Otherwise the new empty paragraph will
749 // be deleted automatically. And it is more friendly for the user!
750 if (cur.pos() != 0 || isempty)
751 setCursor(cur, cur.pit() + 1, 0);
753 setCursor(cur, cur.pit(), 0);
757 // needed to insert the selection
758 void Text::insertStringAsLines(DocIterator const & dit, docstring const & str,
761 BufferParams const & bparams = owner_->buffer().params();
762 pit_type pit = dit.pit();
763 pos_type pos = dit.pos();
765 // insert the string, don't insert doublespace
766 bool space_inserted = true;
767 for (docstring::const_iterator cit = str.begin();
768 cit != str.end(); ++cit) {
769 Paragraph & par = pars_[pit];
771 if (autoBreakRows_ && (!par.empty() || par.allowEmpty())) {
772 lyx::breakParagraph(*this, pit, pos,
773 par.layout().isEnvironment());
776 space_inserted = true;
780 // do not insert consecutive spaces if !free_spacing
781 } else if ((*cit == ' ' || *cit == '\t') &&
782 space_inserted && !par.isFreeSpacing()) {
784 } else if (*cit == '\t') {
785 if (!par.isFreeSpacing()) {
786 // tabs are like spaces here
787 par.insertChar(pos, ' ', font, bparams.trackChanges);
789 space_inserted = true;
791 par.insertChar(pos, *cit, font, bparams.trackChanges);
793 space_inserted = true;
795 } else if (!isPrintable(*cit)) {
796 // Ignore unprintables
799 // just insert the character
800 par.insertChar(pos, *cit, font, bparams.trackChanges);
802 space_inserted = (*cit == ' ');
808 // turn double CR to single CR, others are converted into one
809 // blank. Then insertStringAsLines is called
810 void Text::insertStringAsParagraphs(DocIterator const & dit, docstring const & str,
813 docstring linestr = str;
814 bool newline_inserted = false;
816 for (string::size_type i = 0, siz = linestr.size(); i < siz; ++i) {
817 if (linestr[i] == '\n') {
818 if (newline_inserted) {
819 // we know that \r will be ignored by
820 // insertStringAsLines. Of course, it is a dirty
821 // trick, but it works...
822 linestr[i - 1] = '\r';
826 newline_inserted = true;
828 } else if (isPrintable(linestr[i])) {
829 newline_inserted = false;
832 insertStringAsLines(dit, linestr, font);
836 // insert a character, moves all the following breaks in the
837 // same Paragraph one to the right and make a rebreak
838 void Text::insertChar(Cursor & cur, char_type c)
840 LASSERT(this == cur.text(), /**/);
842 cur.recordUndo(INSERT_UNDO);
844 TextMetrics const & tm = cur.bv().textMetrics(this);
845 Buffer const & buffer = *cur.buffer();
846 Paragraph & par = cur.paragraph();
847 // try to remove this
848 pit_type const pit = cur.pit();
850 bool const freeSpacing = par.layout().free_spacing ||
853 if (lyxrc.auto_number) {
854 static docstring const number_operators = from_ascii("+-/*");
855 static docstring const number_unary_operators = from_ascii("+-");
856 static docstring const number_seperators = from_ascii(".,:");
858 if (cur.current_font.fontInfo().number() == FONT_ON) {
859 if (!isDigitASCII(c) && !contains(number_operators, c) &&
860 !(contains(number_seperators, c) &&
862 cur.pos() != cur.lastpos() &&
863 tm.displayFont(pit, cur.pos()).fontInfo().number() == FONT_ON &&
864 tm.displayFont(pit, cur.pos() - 1).fontInfo().number() == FONT_ON)
866 number(cur); // Set current_font.number to OFF
867 } else if (isDigitASCII(c) &&
868 cur.real_current_font.isVisibleRightToLeft()) {
869 number(cur); // Set current_font.number to ON
871 if (cur.pos() != 0) {
872 char_type const c = par.getChar(cur.pos() - 1);
873 if (contains(number_unary_operators, c) &&
875 || par.isSeparator(cur.pos() - 2)
876 || par.isNewline(cur.pos() - 2))
878 setCharFont(pit, cur.pos() - 1, cur.current_font,
880 } else if (contains(number_seperators, c)
882 && tm.displayFont(pit, cur.pos() - 2).fontInfo().number() == FONT_ON) {
883 setCharFont(pit, cur.pos() - 1, cur.current_font,
890 // In Bidi text, we want spaces to be treated in a special way: spaces
891 // which are between words in different languages should get the
892 // paragraph's language; otherwise, spaces should keep the language
893 // they were originally typed in. This is only in effect while typing;
894 // after the text is already typed in, the user can always go back and
895 // explicitly set the language of a space as desired. But 99.9% of the
896 // time, what we're doing here is what the user actually meant.
898 // The following cases are the ones in which the language of the space
899 // should be changed to match that of the containing paragraph. In the
900 // depictions, lowercase is LTR, uppercase is RTL, underscore (_)
901 // represents a space, pipe (|) represents the cursor position (so the
902 // character before it is the one just typed in). The different cases
903 // are depicted logically (not visually), from left to right:
908 // Theoretically, there are other situations that we should, perhaps, deal
909 // with (e.g.: a|_A, A|_a). In practice, though, there really isn't any
910 // point (to understand why, just try to create this situation...).
912 if ((cur.pos() >= 2) && (par.isLineSeparator(cur.pos() - 1))) {
913 // get font in front and behind the space in question. But do NOT
914 // use getFont(cur.pos()) because the character c is not inserted yet
915 Font const pre_space_font = tm.displayFont(cur.pit(), cur.pos() - 2);
916 Font const & post_space_font = cur.real_current_font;
917 bool pre_space_rtl = pre_space_font.isVisibleRightToLeft();
918 bool post_space_rtl = post_space_font.isVisibleRightToLeft();
920 if (pre_space_rtl != post_space_rtl) {
921 // Set the space's language to match the language of the
922 // adjacent character whose direction is the paragraph's
923 // direction; don't touch other properties of the font
924 Language const * lang =
925 (pre_space_rtl == par.isRTL(buffer.params())) ?
926 pre_space_font.language() : post_space_font.language();
928 Font space_font = tm.displayFont(cur.pit(), cur.pos() - 1);
929 space_font.setLanguage(lang);
930 par.setFont(cur.pos() - 1, space_font);
934 // Next check, if there will be two blanks together or a blank at
935 // the beginning of a paragraph.
936 // I decided to handle blanks like normal characters, the main
937 // difference are the special checks when calculating the row.fill
938 // (blank does not count at the end of a row) and the check here
940 // When the free-spacing option is set for the current layout,
941 // disable the double-space checking
942 if (!freeSpacing && isLineSeparatorChar(c)) {
943 if (cur.pos() == 0) {
945 "You cannot insert a space at the "
946 "beginning of a paragraph. Please read the Tutorial."));
949 LASSERT(cur.pos() > 0, /**/);
950 if ((par.isLineSeparator(cur.pos() - 1) || par.isNewline(cur.pos() - 1))
951 && !par.isDeleted(cur.pos() - 1)) {
953 "You cannot type two spaces this way. "
954 "Please read the Tutorial."));
959 par.insertChar(cur.pos(), c, cur.current_font,
960 cur.buffer()->params().trackChanges);
961 cur.checkBufferStructure();
963 // cur.screenUpdateFlags(Update::Force);
964 bool boundary = cur.boundary()
965 || tm.isRTLBoundary(cur.pit(), cur.pos() + 1);
966 setCursor(cur, cur.pit(), cur.pos() + 1, false, boundary);
971 void Text::charInserted(Cursor & cur)
973 Paragraph & par = cur.paragraph();
975 // Here we call finishUndo for every 20 characters inserted.
976 // This is from my experience how emacs does it. (Lgb)
977 if (undo_counter_ < 20) {
984 // register word if a non-letter was entered
986 && !par.isWordSeparator(cur.pos() - 2)
987 && par.isWordSeparator(cur.pos() - 1)) {
988 // get the word in front of cursor
989 LASSERT(this == cur.text(), /**/);
990 cur.paragraph().updateWords();
995 // the cursor set functions have a special mechanism. When they
996 // realize, that you left an empty paragraph, they will delete it.
998 bool Text::cursorForwardOneWord(Cursor & cur)
1000 LASSERT(this == cur.text(), /**/);
1002 pos_type const lastpos = cur.lastpos();
1003 pit_type pit = cur.pit();
1004 pos_type pos = cur.pos();
1005 Paragraph const & par = cur.paragraph();
1007 // Paragraph boundary is a word boundary
1008 if (pos == lastpos) {
1009 if (pit != cur.lastpit())
1010 return setCursor(cur, pit + 1, 0);
1015 if (lyxrc.mac_like_word_movement) {
1016 // Skip through trailing punctuation and spaces.
1017 while (pos != lastpos && (par.isChar(pos) || par.isSpace(pos)))
1020 // Skip over either a non-char inset or a full word
1021 if (pos != lastpos && par.isWordSeparator(pos))
1023 else while (pos != lastpos && !par.isWordSeparator(pos))
1026 LASSERT(pos < lastpos, /**/); // see above
1027 if (!par.isWordSeparator(pos))
1028 while (pos != lastpos && !par.isWordSeparator(pos))
1030 else if (par.isChar(pos))
1031 while (pos != lastpos && par.isChar(pos))
1033 else if (!par.isSpace(pos)) // non-char inset
1036 // Skip over white space
1037 while (pos != lastpos && par.isSpace(pos))
1041 return setCursor(cur, pit, pos);
1045 bool Text::cursorBackwardOneWord(Cursor & cur)
1047 LASSERT(this == cur.text(), /**/);
1049 pit_type pit = cur.pit();
1050 pos_type pos = cur.pos();
1051 Paragraph & par = cur.paragraph();
1053 // Paragraph boundary is a word boundary
1054 if (pos == 0 && pit != 0)
1055 return setCursor(cur, pit - 1, getPar(pit - 1).size());
1057 if (lyxrc.mac_like_word_movement) {
1058 // Skip through punctuation and spaces.
1059 while (pos != 0 && (par.isChar(pos - 1) || par.isSpace(pos - 1)))
1062 // Skip over either a non-char inset or a full word
1063 if (pos != 0 && par.isWordSeparator(pos - 1) && !par.isChar(pos - 1))
1065 else while (pos != 0 && !par.isWordSeparator(pos - 1))
1068 // Skip over white space
1069 while (pos != 0 && par.isSpace(pos - 1))
1072 if (pos != 0 && !par.isWordSeparator(pos - 1))
1073 while (pos != 0 && !par.isWordSeparator(pos - 1))
1075 else if (pos != 0 && par.isChar(pos - 1))
1076 while (pos != 0 && par.isChar(pos - 1))
1078 else if (pos != 0 && !par.isSpace(pos - 1)) // non-char inset
1082 return setCursor(cur, pit, pos);
1086 bool Text::cursorVisLeftOneWord(Cursor & cur)
1088 LASSERT(this == cur.text(), /**/);
1090 pos_type left_pos, right_pos;
1091 bool left_is_letter, right_is_letter;
1093 Cursor temp_cur = cur;
1095 // always try to move at least once...
1096 while (temp_cur.posVisLeft(true /* skip_inset */)) {
1098 // collect some information about current cursor position
1099 temp_cur.getSurroundingPos(left_pos, right_pos);
1101 (left_pos > -1 ? !temp_cur.paragraph().isWordSeparator(left_pos) : false);
1103 (right_pos > -1 ? !temp_cur.paragraph().isWordSeparator(right_pos) : false);
1105 // if we're not at a letter/non-letter boundary, continue moving
1106 if (left_is_letter == right_is_letter)
1109 // we should stop when we have an LTR word on our right or an RTL word
1111 if ((left_is_letter && temp_cur.paragraph().getFontSettings(
1112 temp_cur.buffer()->params(), left_pos).isRightToLeft())
1113 || (right_is_letter && !temp_cur.paragraph().getFontSettings(
1114 temp_cur.buffer()->params(), right_pos).isRightToLeft()))
1118 return setCursor(cur, temp_cur.pit(), temp_cur.pos(),
1119 true, temp_cur.boundary());
1123 bool Text::cursorVisRightOneWord(Cursor & cur)
1125 LASSERT(this == cur.text(), /**/);
1127 pos_type left_pos, right_pos;
1128 bool left_is_letter, right_is_letter;
1130 Cursor temp_cur = cur;
1132 // always try to move at least once...
1133 while (temp_cur.posVisRight(true /* skip_inset */)) {
1135 // collect some information about current cursor position
1136 temp_cur.getSurroundingPos(left_pos, right_pos);
1138 (left_pos > -1 ? !temp_cur.paragraph().isWordSeparator(left_pos) : false);
1140 (right_pos > -1 ? !temp_cur.paragraph().isWordSeparator(right_pos) : false);
1142 // if we're not at a letter/non-letter boundary, continue moving
1143 if (left_is_letter == right_is_letter)
1146 // we should stop when we have an LTR word on our right or an RTL word
1148 if ((left_is_letter && temp_cur.paragraph().getFontSettings(
1149 temp_cur.buffer()->params(),
1150 left_pos).isRightToLeft())
1151 || (right_is_letter && !temp_cur.paragraph().getFontSettings(
1152 temp_cur.buffer()->params(),
1153 right_pos).isRightToLeft()))
1157 return setCursor(cur, temp_cur.pit(), temp_cur.pos(),
1158 true, temp_cur.boundary());
1162 void Text::selectWord(Cursor & cur, word_location loc)
1164 LASSERT(this == cur.text(), /**/);
1165 CursorSlice from = cur.top();
1166 CursorSlice to = cur.top();
1167 getWord(from, to, loc);
1168 if (cur.top() != from)
1169 setCursor(cur, from.pit(), from.pos());
1172 if (!cur.selection())
1174 setCursor(cur, to.pit(), to.pos());
1176 cur.setWordSelection(true);
1180 void Text::selectAll(Cursor & cur)
1182 LASSERT(this == cur.text(), /**/);
1183 if (cur.lastpos() == 0 && cur.lastpit() == 0)
1185 // If the cursor is at the beginning, make sure the cursor ends there
1186 if (cur.pit() == 0 && cur.pos() == 0) {
1187 setCursor(cur, cur.lastpit(), getPar(cur.lastpit()).size());
1189 setCursor(cur, 0, 0);
1191 setCursor(cur, 0, 0);
1193 setCursor(cur, cur.lastpit(), getPar(cur.lastpit()).size());
1199 // Select the word currently under the cursor when no
1200 // selection is currently set
1201 bool Text::selectWordWhenUnderCursor(Cursor & cur, word_location loc)
1203 LASSERT(this == cur.text(), /**/);
1204 if (cur.selection())
1206 selectWord(cur, loc);
1207 return cur.selection();
1211 void Text::acceptOrRejectChanges(Cursor & cur, ChangeOp op)
1213 LASSERT(this == cur.text(), /**/);
1215 if (!cur.selection()) {
1216 bool const changed = cur.paragraph().isChanged(cur.pos());
1217 if (!(changed && findNextChange(&cur.bv())))
1221 cur.recordUndoSelection();
1223 pit_type begPit = cur.selectionBegin().pit();
1224 pit_type endPit = cur.selectionEnd().pit();
1226 pos_type begPos = cur.selectionBegin().pos();
1227 pos_type endPos = cur.selectionEnd().pos();
1229 // keep selection info, because endPos becomes invalid after the first loop
1230 bool endsBeforeEndOfPar = (endPos < pars_[endPit].size());
1232 // first, accept/reject changes within each individual paragraph (do not consider end-of-par)
1234 for (pit_type pit = begPit; pit <= endPit; ++pit) {
1235 pos_type parSize = pars_[pit].size();
1237 // ignore empty paragraphs; otherwise, an assertion will fail for
1238 // acceptChanges(bparams, 0, 0) or rejectChanges(bparams, 0, 0)
1242 // do not consider first paragraph if the cursor starts at pos size()
1243 if (pit == begPit && begPos == parSize)
1246 // do not consider last paragraph if the cursor ends at pos 0
1247 if (pit == endPit && endPos == 0)
1248 break; // last iteration anyway
1250 pos_type left = (pit == begPit ? begPos : 0);
1251 pos_type right = (pit == endPit ? endPos : parSize);
1254 // there is no change here
1258 pars_[pit].acceptChanges(left, right);
1260 pars_[pit].rejectChanges(left, right);
1264 // next, accept/reject imaginary end-of-par characters
1266 for (pit_type pit = begPit; pit <= endPit; ++pit) {
1267 pos_type pos = pars_[pit].size();
1269 // skip if the selection ends before the end-of-par
1270 if (pit == endPit && endsBeforeEndOfPar)
1271 break; // last iteration anyway
1273 // skip if this is not the last paragraph of the document
1274 // note: the user should be able to accept/reject the par break of the last par!
1275 if (pit == endPit && pit + 1 != int(pars_.size()))
1276 break; // last iteration anway
1279 if (pars_[pit].isInserted(pos)) {
1280 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1281 } else if (pars_[pit].isDeleted(pos)) {
1282 if (pit + 1 == int(pars_.size())) {
1283 // we cannot remove a par break at the end of the last paragraph;
1284 // instead, we mark it unchanged
1285 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1287 mergeParagraph(cur.buffer()->params(), pars_, pit);
1293 if (pars_[pit].isDeleted(pos)) {
1294 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1295 } else if (pars_[pit].isInserted(pos)) {
1296 if (pit + 1 == int(pars_.size())) {
1297 // we mark the par break at the end of the last paragraph unchanged
1298 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1300 mergeParagraph(cur.buffer()->params(), pars_, pit);
1308 // finally, invoke the DEPM
1310 deleteEmptyParagraphMechanism(begPit, endPit, cur.buffer()->params().trackChanges);
1315 cur.clearSelection();
1316 setCursorIntern(cur, begPit, begPos);
1317 cur.screenUpdateFlags(Update::Force);
1318 cur.forceBufferUpdate();
1322 void Text::acceptChanges()
1324 BufferParams const & bparams = owner_->buffer().params();
1325 lyx::acceptChanges(pars_, bparams);
1326 deleteEmptyParagraphMechanism(0, pars_.size() - 1, bparams.trackChanges);
1330 void Text::rejectChanges()
1332 BufferParams const & bparams = owner_->buffer().params();
1333 pit_type pars_size = static_cast<pit_type>(pars_.size());
1335 // first, reject changes within each individual paragraph
1336 // (do not consider end-of-par)
1337 for (pit_type pit = 0; pit < pars_size; ++pit) {
1338 if (!pars_[pit].empty()) // prevent assertion failure
1339 pars_[pit].rejectChanges(0, pars_[pit].size());
1342 // next, reject imaginary end-of-par characters
1343 for (pit_type pit = 0; pit < pars_size; ++pit) {
1344 pos_type pos = pars_[pit].size();
1346 if (pars_[pit].isDeleted(pos)) {
1347 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1348 } else if (pars_[pit].isInserted(pos)) {
1349 if (pit == pars_size - 1) {
1350 // we mark the par break at the end of the last
1351 // paragraph unchanged
1352 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1354 mergeParagraph(bparams, pars_, pit);
1361 // finally, invoke the DEPM
1362 deleteEmptyParagraphMechanism(0, pars_size - 1, bparams.trackChanges);
1366 void Text::deleteWordForward(Cursor & cur)
1368 LASSERT(this == cur.text(), /**/);
1369 if (cur.lastpos() == 0)
1373 cur.setSelection(true);
1374 cursorForwardOneWord(cur);
1376 cutSelection(cur, true, false);
1377 cur.checkBufferStructure();
1382 void Text::deleteWordBackward(Cursor & cur)
1384 LASSERT(this == cur.text(), /**/);
1385 if (cur.lastpos() == 0)
1386 cursorBackward(cur);
1389 cur.setSelection(true);
1390 cursorBackwardOneWord(cur);
1392 cutSelection(cur, true, false);
1393 cur.checkBufferStructure();
1398 // Kill to end of line.
1399 void Text::changeCase(Cursor & cur, TextCase action)
1401 LASSERT(this == cur.text(), /**/);
1405 bool gotsel = false;
1406 if (cur.selection()) {
1407 from = cur.selBegin();
1412 getWord(from, to, PARTIAL_WORD);
1413 cursorForwardOneWord(cur);
1416 cur.recordUndoSelection();
1418 pit_type begPit = from.pit();
1419 pit_type endPit = to.pit();
1421 pos_type begPos = from.pos();
1422 pos_type endPos = to.pos();
1424 pos_type right = 0; // needed after the for loop
1426 for (pit_type pit = begPit; pit <= endPit; ++pit) {
1427 Paragraph & par = pars_[pit];
1428 pos_type const pos = (pit == begPit ? begPos : 0);
1429 right = (pit == endPit ? endPos : par.size());
1430 par.changeCase(cur.buffer()->params(), pos, right, action);
1433 // the selection may have changed due to logically-only deleted chars
1435 setCursor(cur, begPit, begPos);
1437 setCursor(cur, endPit, right);
1440 setCursor(cur, endPit, right);
1442 cur.checkBufferStructure();
1446 bool Text::handleBibitems(Cursor & cur)
1448 if (cur.paragraph().layout().labeltype != LABEL_BIBLIO)
1454 BufferParams const & bufparams = cur.buffer()->params();
1455 Paragraph const & par = cur.paragraph();
1456 Cursor prevcur = cur;
1457 if (cur.pit() > 0) {
1459 prevcur.pos() = prevcur.lastpos();
1461 Paragraph const & prevpar = prevcur.paragraph();
1463 // if a bibitem is deleted, merge with previous paragraph
1464 // if this is a bibliography item as well
1465 if (cur.pit() > 0 && par.layout() == prevpar.layout()) {
1466 cur.recordUndo(ATOMIC_UNDO, prevcur.pit());
1467 mergeParagraph(bufparams, cur.text()->paragraphs(),
1469 cur.forceBufferUpdate();
1470 setCursorIntern(cur, prevcur.pit(), prevcur.pos());
1471 cur.screenUpdateFlags(Update::Force);
1475 // otherwise reset to default
1476 cur.paragraph().setPlainOrDefaultLayout(bufparams.documentClass());
1481 bool Text::erase(Cursor & cur)
1483 LASSERT(this == cur.text(), return false);
1484 bool needsUpdate = false;
1485 Paragraph & par = cur.paragraph();
1487 if (cur.pos() != cur.lastpos()) {
1488 // this is the code for a normal delete, not pasting
1490 cur.recordUndo(DELETE_UNDO);
1491 bool const was_inset = cur.paragraph().isInset(cur.pos());
1492 if(!par.eraseChar(cur.pos(), cur.buffer()->params().trackChanges))
1493 // the character has been logically deleted only => skip it
1494 cur.top().forwardPos();
1497 cur.forceBufferUpdate();
1499 cur.checkBufferStructure();
1502 if (cur.pit() == cur.lastpit())
1503 return dissolveInset(cur);
1505 if (!par.isMergedOnEndOfParDeletion(cur.buffer()->params().trackChanges)) {
1506 par.setChange(cur.pos(), Change(Change::DELETED));
1510 setCursorIntern(cur, cur.pit() + 1, 0);
1511 needsUpdate = backspacePos0(cur);
1515 needsUpdate |= handleBibitems(cur);
1518 // Make sure the cursor is correct. Is this really needed?
1519 // No, not really... at least not here!
1520 cur.text()->setCursor(cur.top(), cur.pit(), cur.pos());
1521 cur.checkBufferStructure();
1528 bool Text::backspacePos0(Cursor & cur)
1530 LASSERT(this == cur.text(), /**/);
1534 bool needsUpdate = false;
1536 BufferParams const & bufparams = cur.buffer()->params();
1537 DocumentClass const & tclass = bufparams.documentClass();
1538 ParagraphList & plist = cur.text()->paragraphs();
1539 Paragraph const & par = cur.paragraph();
1540 Cursor prevcur = cur;
1542 prevcur.pos() = prevcur.lastpos();
1543 Paragraph const & prevpar = prevcur.paragraph();
1545 // is it an empty paragraph?
1546 if (cur.lastpos() == 0
1547 || (cur.lastpos() == 1 && par.isSeparator(0))) {
1548 cur.recordUndo(ATOMIC_UNDO, prevcur.pit(), cur.pit());
1549 plist.erase(boost::next(plist.begin(), cur.pit()));
1552 // is previous par empty?
1553 else if (prevcur.lastpos() == 0
1554 || (prevcur.lastpos() == 1 && prevpar.isSeparator(0))) {
1555 cur.recordUndo(ATOMIC_UNDO, prevcur.pit(), cur.pit());
1556 plist.erase(boost::next(plist.begin(), prevcur.pit()));
1559 // Pasting is not allowed, if the paragraphs have different
1560 // layouts. I think it is a real bug of all other
1561 // word processors to allow it. It confuses the user.
1562 // Correction: Pasting is always allowed with standard-layout
1563 // or the empty layout.
1564 else if (par.layout() == prevpar.layout()
1565 || tclass.isDefaultLayout(par.layout())
1566 || tclass.isPlainLayout(par.layout())) {
1567 cur.recordUndo(ATOMIC_UNDO, prevcur.pit());
1568 mergeParagraph(bufparams, plist, prevcur.pit());
1573 cur.forceBufferUpdate();
1574 setCursorIntern(cur, prevcur.pit(), prevcur.pos());
1581 bool Text::backspace(Cursor & cur)
1583 LASSERT(this == cur.text(), /**/);
1584 bool needsUpdate = false;
1585 if (cur.pos() == 0) {
1587 return dissolveInset(cur);
1589 Paragraph & prev_par = pars_[cur.pit() - 1];
1591 if (!prev_par.isMergedOnEndOfParDeletion(cur.buffer()->params().trackChanges)) {
1592 prev_par.setChange(prev_par.size(), Change(Change::DELETED));
1593 setCursorIntern(cur, cur.pit() - 1, prev_par.size());
1596 // The cursor is at the beginning of a paragraph, so
1597 // the backspace will collapse two paragraphs into one.
1598 needsUpdate = backspacePos0(cur);
1601 // this is the code for a normal backspace, not pasting
1603 cur.recordUndo(DELETE_UNDO);
1604 // We used to do cursorBackwardIntern() here, but it is
1605 // not a good idea since it triggers the auto-delete
1606 // mechanism. So we do a cursorBackwardIntern()-lite,
1607 // without the dreaded mechanism. (JMarc)
1608 setCursorIntern(cur, cur.pit(), cur.pos() - 1,
1609 false, cur.boundary());
1610 bool const was_inset = cur.paragraph().isInset(cur.pos());
1611 cur.paragraph().eraseChar(cur.pos(), cur.buffer()->params().trackChanges);
1613 cur.forceBufferUpdate();
1615 cur.checkBufferStructure();
1618 if (cur.pos() == cur.lastpos())
1619 cur.setCurrentFont();
1621 needsUpdate |= handleBibitems(cur);
1623 // A singlePar update is not enough in this case.
1624 // cur.screenUpdateFlags(Update::Force);
1625 setCursor(cur.top(), cur.pit(), cur.pos());
1631 bool Text::dissolveInset(Cursor & cur)
1633 LASSERT(this == cur.text(), return false);
1635 if (isMainText() || cur.inset().nargs() != 1)
1638 cur.recordUndoInset();
1640 cur.selHandle(false);
1642 pos_type spos = cur.pos();
1643 pit_type spit = cur.pit();
1644 ParagraphList plist;
1645 if (cur.lastpit() != 0 || cur.lastpos() != 0)
1646 plist = paragraphs();
1648 // store cursor offset
1652 Buffer & b = *cur.buffer();
1653 cur.paragraph().eraseChar(cur.pos(), b.params().trackChanges);
1655 if (!plist.empty()) {
1657 // we clear the cache so that we won't get conflicts with labels
1658 // that get pasted into the buffer. we should update this before
1659 // its being empty matters. if not (i.e., if we encounter bugs),
1660 // then this should instead be:
1661 // cur.buffer().updateBuffer();
1662 // but we'll try the cheaper solution here.
1663 cur.buffer()->clearReferenceCache();
1665 // ERT paragraphs have the Language latex_language.
1666 // This is invalid outside of ERT, so we need to
1667 // change it to the buffer language.
1668 ParagraphList::iterator it = plist.begin();
1669 ParagraphList::iterator it_end = plist.end();
1670 for (; it != it_end; it++)
1671 it->changeLanguage(b.params(), latex_language, b.language());
1673 pasteParagraphList(cur, plist, b.params().documentClassPtr(),
1674 b.errorList("Paste"));
1676 cur.pit() = min(cur.lastpit(), spit);
1677 cur.pos() = min(cur.lastpos(), spos);
1680 cur.forceBufferUpdate();
1682 // Ensure the current language is set correctly (bug 6292)
1683 cur.text()->setCursor(cur, cur.pit(), cur.pos());
1684 cur.clearSelection();
1690 void Text::getWord(CursorSlice & from, CursorSlice & to,
1691 word_location const loc) const
1694 pars_[to.pit()].locateWord(from.pos(), to.pos(), loc);
1698 void Text::write(ostream & os) const
1700 Buffer const & buf = owner_->buffer();
1701 ParagraphList::const_iterator pit = paragraphs().begin();
1702 ParagraphList::const_iterator end = paragraphs().end();
1704 for (; pit != end; ++pit)
1705 pit->write(os, buf.params(), dth);
1707 // Close begin_deeper
1708 for(; dth > 0; --dth)
1709 os << "\n\\end_deeper";
1713 bool Text::read(Lexer & lex,
1714 ErrorList & errorList, InsetText * insetPtr)
1716 Buffer const & buf = owner_->buffer();
1717 depth_type depth = 0;
1720 while (lex.isOK()) {
1722 string const token = lex.getString();
1727 if (token == "\\end_inset")
1730 if (token == "\\end_body")
1733 if (token == "\\begin_body")
1736 if (token == "\\end_document") {
1741 if (token == "\\begin_layout") {
1742 lex.pushToken(token);
1745 par.setInsetOwner(insetPtr);
1746 par.params().depth(depth);
1747 par.setFont(0, Font(inherit_font, buf.params().language));
1748 pars_.push_back(par);
1749 readParagraph(pars_.back(), lex, errorList);
1751 // register the words in the global word list
1752 pars_.back().updateWords();
1753 } else if (token == "\\begin_deeper") {
1755 } else if (token == "\\end_deeper") {
1757 lex.printError("\\end_deeper: " "depth is already null");
1761 LYXERR0("Handling unknown body token: `" << token << '\'');
1765 // avoid a crash on weird documents (bug 4859)
1766 if (pars_.empty()) {
1768 par.setInsetOwner(insetPtr);
1769 par.params().depth(depth);
1770 par.setFont(0, Font(inherit_font,
1771 buf.params().language));
1772 par.setPlainOrDefaultLayout(buf.params().documentClass());
1773 pars_.push_back(par);
1779 // Returns the current font and depth as a message.
1780 docstring Text::currentState(Cursor const & cur) const
1782 LASSERT(this == cur.text(), /**/);
1783 Buffer & buf = *cur.buffer();
1784 Paragraph const & par = cur.paragraph();
1785 odocstringstream os;
1787 if (buf.params().trackChanges)
1788 os << _("[Change Tracking] ");
1790 Change change = par.lookupChange(cur.pos());
1792 if (change.changed()) {
1793 Author const & a = buf.params().authors().get(change.author);
1794 os << _("Change: ") << a.name();
1795 if (!a.email().empty())
1796 os << " (" << a.email() << ")";
1797 // FIXME ctime is english, we should translate that
1798 os << _(" at ") << ctime(&change.changetime);
1802 // I think we should only show changes from the default
1804 // No, from the document font (MV)
1805 Font font = cur.real_current_font;
1806 font.fontInfo().reduce(buf.params().getFont().fontInfo());
1808 os << bformat(_("Font: %1$s"), font.stateText(&buf.params()));
1810 // The paragraph depth
1811 int depth = cur.paragraph().getDepth();
1813 os << bformat(_(", Depth: %1$d"), depth);
1815 // The paragraph spacing, but only if different from
1817 Spacing const & spacing = par.params().spacing();
1818 if (!spacing.isDefault()) {
1819 os << _(", Spacing: ");
1820 switch (spacing.getSpace()) {
1821 case Spacing::Single:
1824 case Spacing::Onehalf:
1827 case Spacing::Double:
1830 case Spacing::Other:
1831 os << _("Other (") << from_ascii(spacing.getValueAsString()) << ')';
1833 case Spacing::Default:
1834 // should never happen, do nothing
1839 #ifdef DEVEL_VERSION
1840 os << _(", Inset: ") << &cur.inset();
1841 os << _(", Paragraph: ") << cur.pit();
1842 os << _(", Id: ") << par.id();
1843 os << _(", Position: ") << cur.pos();
1844 // FIXME: Why is the check for par.size() needed?
1845 // We are called with cur.pos() == par.size() quite often.
1846 if (!par.empty() && cur.pos() < par.size()) {
1847 // Force output of code point, not character
1848 size_t const c = par.getChar(cur.pos());
1849 os << _(", Char: 0x") << hex << c;
1851 os << _(", Boundary: ") << cur.boundary();
1852 // Row & row = cur.textRow();
1853 // os << bformat(_(", Row b:%1$d e:%2$d"), row.pos(), row.endpos());
1859 docstring Text::getPossibleLabel(Cursor const & cur) const
1861 pit_type pit = cur.pit();
1863 Layout const * layout = &(pars_[pit].layout());
1866 docstring par_text = pars_[pit].asString();
1868 // The return string of math matrices might contain linebreaks
1869 par_text = subst(par_text, '\n', '-');
1870 int const numwords = 3;
1871 for (int i = 0; i < numwords; ++i) {
1872 if (par_text.empty())
1875 par_text = split(par_text, head, ' ');
1876 // Is it legal to use spaces in labels ?
1882 // Make sure it isn't too long
1883 unsigned int const max_label_length = 32;
1884 if (text.size() > max_label_length)
1885 text.resize(max_label_length);
1887 // Will contain the label prefix.
1890 // For section, subsection, etc...
1891 if (layout->latextype == LATEX_PARAGRAPH && pit != 0) {
1892 Layout const * layout2 = &(pars_[pit - 1].layout());
1893 if (layout2->latextype != LATEX_PARAGRAPH) {
1898 if (layout->latextype != LATEX_PARAGRAPH)
1899 name = layout->refprefix;
1901 // For captions, we just take the caption type
1902 Inset * caption_inset = cur.innerInsetOfType(CAPTION_CODE);
1903 if (caption_inset) {
1904 string const & ftype = static_cast<InsetCaption *>(caption_inset)->type();
1905 FloatList const & fl = cur.buffer()->params().documentClass().floats();
1906 if (fl.typeExist(ftype)) {
1907 Floating const & flt = fl.getType(ftype);
1908 name = from_utf8(flt.refPrefix());
1911 name = from_utf8(ftype.substr(0,3));
1914 // If none of the above worked, see if the inset knows.
1916 InsetLayout const & il = cur.inset().getLayout();
1917 name = il.refprefix();
1921 text = name + ':' + text;
1927 docstring Text::asString(int options) const
1929 return asString(0, pars_.size(), options);
1933 docstring Text::asString(pit_type beg, pit_type end, int options) const
1935 size_t i = size_t(beg);
1936 docstring str = pars_[i].asString(options);
1937 for (++i; i != size_t(end); ++i) {
1939 str += pars_[i].asString(options);
1945 void Text::forToc(docstring & os, size_t maxlen, bool shorten) const
1947 LASSERT(maxlen > 10, maxlen = 30);
1948 for (size_t i = 0; i != pars_.size() && os.length() < maxlen; ++i)
1949 pars_[i].forToc(os, maxlen);
1950 if (shorten && os.length() >= maxlen)
1951 os = os.substr(0, maxlen - 3) + from_ascii("...");
1955 void Text::charsTranspose(Cursor & cur)
1957 LASSERT(this == cur.text(), /**/);
1959 pos_type pos = cur.pos();
1961 // If cursor is at beginning or end of paragraph, do nothing.
1962 if (pos == cur.lastpos() || pos == 0)
1965 Paragraph & par = cur.paragraph();
1967 // Get the positions of the characters to be transposed.
1968 pos_type pos1 = pos - 1;
1969 pos_type pos2 = pos;
1971 // In change tracking mode, ignore deleted characters.
1972 while (pos2 < cur.lastpos() && par.isDeleted(pos2))
1974 if (pos2 == cur.lastpos())
1977 while (pos1 >= 0 && par.isDeleted(pos1))
1982 // Don't do anything if one of the "characters" is not regular text.
1983 if (par.isInset(pos1) || par.isInset(pos2))
1986 // Store the characters to be transposed (including font information).
1987 char_type const char1 = par.getChar(pos1);
1989 par.getFontSettings(cur.buffer()->params(), pos1);
1991 char_type const char2 = par.getChar(pos2);
1993 par.getFontSettings(cur.buffer()->params(), pos2);
1995 // And finally, we are ready to perform the transposition.
1996 // Track the changes if Change Tracking is enabled.
1997 bool const trackChanges = cur.buffer()->params().trackChanges;
2001 par.eraseChar(pos2, trackChanges);
2002 par.eraseChar(pos1, trackChanges);
2003 par.insertChar(pos1, char2, font2, trackChanges);
2004 par.insertChar(pos2, char1, font1, trackChanges);
2006 cur.checkBufferStructure();
2008 // After the transposition, move cursor to after the transposition.
2009 setCursor(cur, cur.pit(), pos2);
2014 DocIterator Text::macrocontextPosition() const
2016 return macrocontext_position_;
2020 void Text::setMacrocontextPosition(DocIterator const & pos)
2022 macrocontext_position_ = pos;
2026 docstring Text::previousWord(CursorSlice const & sl) const
2028 CursorSlice from = sl;
2029 CursorSlice to = sl;
2030 getWord(from, to, PREVIOUS_WORD);
2031 if (sl == from || to == from)
2034 Paragraph const & par = sl.paragraph();
2035 return par.asString(from.pos(), to.pos());
2039 bool Text::completionSupported(Cursor const & cur) const
2041 Paragraph const & par = cur.paragraph();
2042 return cur.pos() > 0
2043 && (cur.pos() >= par.size() || par.isWordSeparator(cur.pos()))
2044 && !par.isWordSeparator(cur.pos() - 1);
2048 CompletionList const * Text::createCompletionList(Cursor const & cur) const
2050 WordList const * list = theWordList(*cur.getFont().language());
2051 return new TextCompletionList(cur, list);
2055 bool Text::insertCompletion(Cursor & cur, docstring const & s, bool /*finished*/)
2057 LASSERT(cur.bv().cursor() == cur, /**/);
2059 cur.bv().cursor() = cur;
2060 if (!(cur.result().screenUpdate() & Update::Force))
2061 cur.screenUpdateFlags(cur.result().screenUpdate() | Update::SinglePar);
2066 docstring Text::completionPrefix(Cursor const & cur) const
2068 return previousWord(cur.top());