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/InsetLine.h"
57 #include "insets/InsetNewline.h"
58 #include "insets/InsetNewpage.h"
59 #include "insets/InsetArgument.h"
60 #include "insets/InsetSpace.h"
61 #include "insets/InsetSpecialChar.h"
62 #include "insets/InsetTabular.h"
64 #include "support/debug.h"
65 #include "support/docstream.h"
66 #include "support/gettext.h"
67 #include "support/lassert.h"
68 #include "support/lstrings.h"
69 #include "support/textutils.h"
71 #include <boost/next_prior.hpp>
76 using namespace lyx::support;
80 using cap::cutSelection;
81 using cap::pasteParagraphList;
83 static bool moveItem(Paragraph & fromPar, pos_type fromPos,
84 Paragraph & toPar, pos_type toPos, BufferParams const & params)
86 // Note: moveItem() does not honour change tracking!
87 // Therefore, it should only be used for breaking and merging paragraphs
89 // We need a copy here because the character at fromPos is going to be erased.
90 Font const tmpFont = fromPar.getFontSettings(params, fromPos);
91 Change const tmpChange = fromPar.lookupChange(fromPos);
93 if (Inset * tmpInset = fromPar.getInset(fromPos)) {
94 fromPar.releaseInset(fromPos);
95 // The inset is not in fromPar any more.
96 if (!toPar.insertInset(toPos, tmpInset, tmpFont, tmpChange)) {
103 char_type const tmpChar = fromPar.getChar(fromPos);
104 fromPar.eraseChar(fromPos, false);
105 toPar.insertChar(toPos, tmpChar, tmpFont, tmpChange);
110 void breakParagraphConservative(BufferParams const & bparams,
111 ParagraphList & pars, pit_type par_offset, pos_type pos)
113 // create a new paragraph
114 Paragraph & tmp = *pars.insert(boost::next(pars.begin(), par_offset + 1),
116 Paragraph & par = pars[par_offset];
118 tmp.setInsetOwner(&par.inInset());
119 tmp.makeSameLayout(par);
121 LASSERT(pos <= par.size(), /**/);
123 if (pos < par.size()) {
124 // move everything behind the break position to the new paragraph
125 pos_type pos_end = par.size() - 1;
127 for (pos_type i = pos, j = 0; i <= pos_end; ++i) {
128 if (moveItem(par, pos, tmp, j, bparams)) {
132 // Move over the end-of-par change information
133 tmp.setChange(tmp.size(), par.lookupChange(par.size()));
134 par.setChange(par.size(), Change(bparams.trackChanges ?
135 Change::INSERTED : Change::UNCHANGED));
140 void mergeParagraph(BufferParams const & bparams,
141 ParagraphList & pars, pit_type par_offset)
143 Paragraph & next = pars[par_offset + 1];
144 Paragraph & par = pars[par_offset];
146 pos_type pos_end = next.size() - 1;
147 pos_type pos_insert = par.size();
149 // the imaginary end-of-paragraph character (at par.size()) has to be
150 // marked as unmodified. Otherwise, its change is adopted by the first
151 // character of the next paragraph.
152 if (par.isChanged(par.size())) {
153 LYXERR(Debug::CHANGES,
154 "merging par with inserted/deleted end-of-par character");
155 par.setChange(par.size(), Change(Change::UNCHANGED));
158 Change change = next.lookupChange(next.size());
160 // move the content of the second paragraph to the end of the first one
161 for (pos_type i = 0, j = pos_insert; i <= pos_end; ++i) {
162 if (moveItem(next, 0, par, j, bparams)) {
167 // move the change of the end-of-paragraph character
168 par.setChange(par.size(), change);
170 pars.erase(boost::next(pars.begin(), par_offset + 1));
174 Text::Text(InsetText * owner, bool use_default_layout)
175 : owner_(owner), autoBreakRows_(false), undo_counter_(0)
177 pars_.push_back(Paragraph());
178 Paragraph & par = pars_.back();
179 par.setInsetOwner(owner);
180 DocumentClass const & dc = owner->buffer().params().documentClass();
181 if (use_default_layout)
182 par.setDefaultLayout(dc);
184 par.setPlainLayout(dc);
188 Text::Text(InsetText * owner, Text const & text)
189 : owner_(owner), autoBreakRows_(text.autoBreakRows_), undo_counter_(0)
192 ParagraphList::iterator const end = pars_.end();
193 ParagraphList::iterator it = pars_.begin();
194 for (; it != end; ++it)
195 it->setInsetOwner(owner);
199 pit_type Text::depthHook(pit_type pit, depth_type depth) const
201 pit_type newpit = pit;
206 while (newpit != 0 && pars_[newpit].getDepth() > depth)
209 if (pars_[newpit].getDepth() > depth)
216 pit_type Text::outerHook(pit_type par_offset) const
218 Paragraph const & par = pars_[par_offset];
220 if (par.getDepth() == 0)
222 return depthHook(par_offset, depth_type(par.getDepth() - 1));
226 bool Text::isFirstInSequence(pit_type par_offset) const
228 Paragraph const & par = pars_[par_offset];
230 pit_type dhook_offset = depthHook(par_offset, par.getDepth());
232 if (dhook_offset == par_offset)
235 Paragraph const & dhook = pars_[dhook_offset];
237 return dhook.layout() != par.layout()
238 || dhook.getDepth() != par.getDepth();
242 Font const Text::outerFont(pit_type par_offset) const
244 depth_type par_depth = pars_[par_offset].getDepth();
245 FontInfo tmpfont = inherit_font;
247 // Resolve against environment font information
248 while (par_offset != pit_type(pars_.size())
250 && !tmpfont.resolved()) {
251 par_offset = outerHook(par_offset);
252 if (par_offset != pit_type(pars_.size())) {
253 tmpfont.realize(pars_[par_offset].layout().font);
254 par_depth = pars_[par_offset].getDepth();
258 return Font(tmpfont);
262 static void acceptOrRejectChanges(ParagraphList & pars,
263 BufferParams const & bparams, Text::ChangeOp op)
265 pit_type pars_size = static_cast<pit_type>(pars.size());
267 // first, accept or reject changes within each individual
268 // paragraph (do not consider end-of-par)
269 for (pit_type pit = 0; pit < pars_size; ++pit) {
270 // prevent assertion failure
271 if (!pars[pit].empty()) {
272 if (op == Text::ACCEPT)
273 pars[pit].acceptChanges(0, pars[pit].size());
275 pars[pit].rejectChanges(0, pars[pit].size());
279 // next, accept or reject imaginary end-of-par characters
280 for (pit_type pit = 0; pit < pars_size; ++pit) {
281 pos_type pos = pars[pit].size();
282 if (pars[pit].isChanged(pos)) {
283 // keep the end-of-par char if it is inserted and accepted
284 // or when it is deleted and rejected.
285 if (pars[pit].isInserted(pos) == (op == Text::ACCEPT)) {
286 pars[pit].setChange(pos, Change(Change::UNCHANGED));
288 if (pit == pars_size - 1) {
289 // we cannot remove a par break at the end of the last
290 // paragraph; instead, we mark it unchanged
291 pars[pit].setChange(pos, Change(Change::UNCHANGED));
293 mergeParagraph(bparams, pars, pit);
303 void acceptChanges(ParagraphList & pars, BufferParams const & bparams)
305 acceptOrRejectChanges(pars, bparams, Text::ACCEPT);
309 void rejectChanges(ParagraphList & pars, BufferParams const & bparams)
311 acceptOrRejectChanges(pars, bparams, Text::REJECT);
315 InsetText const & Text::inset() const
321 void Text::readParToken(Paragraph & par, Lexer & lex,
322 string const & token, Font & font, Change & change, ErrorList & errorList)
324 Buffer * buf = const_cast<Buffer *>(&owner_->buffer());
325 BufferParams const & bp = buf->params();
327 if (token[0] != '\\') {
328 docstring dstr = lex.getDocString();
329 par.appendString(dstr, font, change);
331 } else if (token == "\\begin_layout") {
333 docstring layoutname = lex.getDocString();
335 font = Font(inherit_font, bp.language);
336 change = Change(Change::UNCHANGED);
338 DocumentClass const & tclass = bp.documentClass();
340 if (layoutname.empty())
341 layoutname = tclass.defaultLayoutName();
343 if (owner_->forcePlainLayout()) {
344 // in this case only the empty layout is allowed
345 layoutname = tclass.plainLayoutName();
346 } else if (par.usePlainLayout()) {
347 // in this case, default layout maps to empty layout
348 if (layoutname == tclass.defaultLayoutName())
349 layoutname = tclass.plainLayoutName();
351 // otherwise, the empty layout maps to the default
352 if (layoutname == tclass.plainLayoutName())
353 layoutname = tclass.defaultLayoutName();
356 // When we apply an unknown layout to a document, we add this layout to the textclass
357 // of this document. For example, when you apply class article to a beamer document,
358 // all unknown layouts such as frame will be added to document class article so that
359 // these layouts can keep their original names.
360 tclass.addLayoutIfNeeded(layoutname);
362 par.setLayout(bp.documentClass()[layoutname]);
364 // Test whether the layout is obsolete.
365 Layout const & layout = par.layout();
366 if (!layout.obsoleted_by().empty())
367 par.setLayout(bp.documentClass()[layout.obsoleted_by()]);
369 par.params().read(lex);
371 } else if (token == "\\end_layout") {
372 LYXERR0("Solitary \\end_layout in line " << lex.lineNumber() << "\n"
373 << "Missing \\begin_layout ?");
374 } else if (token == "\\end_inset") {
375 LYXERR0("Solitary \\end_inset in line " << lex.lineNumber() << "\n"
376 << "Missing \\begin_inset ?");
377 } else if (token == "\\begin_inset") {
378 Inset * inset = readInset(lex, buf);
380 par.insertInset(par.size(), inset, font, change);
383 docstring line = lex.getDocString();
384 errorList.push_back(ErrorItem(_("Unknown Inset"), line,
385 par.id(), 0, par.size()));
387 } else if (token == "\\family") {
389 setLyXFamily(lex.getString(), font.fontInfo());
390 } else if (token == "\\series") {
392 setLyXSeries(lex.getString(), font.fontInfo());
393 } else if (token == "\\shape") {
395 setLyXShape(lex.getString(), font.fontInfo());
396 } else if (token == "\\size") {
398 setLyXSize(lex.getString(), font.fontInfo());
399 } else if (token == "\\lang") {
401 string const tok = lex.getString();
402 Language const * lang = languages.getLanguage(tok);
404 font.setLanguage(lang);
406 font.setLanguage(bp.language);
407 lex.printError("Unknown language `$$Token'");
409 } else if (token == "\\numeric") {
411 font.fontInfo().setNumber(setLyXMisc(lex.getString()));
412 } else if (token == "\\emph") {
414 font.fontInfo().setEmph(setLyXMisc(lex.getString()));
415 } else if (token == "\\bar") {
417 string const tok = lex.getString();
420 font.fontInfo().setUnderbar(FONT_ON);
421 else if (tok == "no")
422 font.fontInfo().setUnderbar(FONT_OFF);
423 else if (tok == "default")
424 font.fontInfo().setUnderbar(FONT_INHERIT);
426 lex.printError("Unknown bar font flag "
428 } else if (token == "\\strikeout") {
430 font.fontInfo().setStrikeout(setLyXMisc(lex.getString()));
431 } else if (token == "\\uuline") {
433 font.fontInfo().setUuline(setLyXMisc(lex.getString()));
434 } else if (token == "\\uwave") {
436 font.fontInfo().setUwave(setLyXMisc(lex.getString()));
437 } else if (token == "\\noun") {
439 font.fontInfo().setNoun(setLyXMisc(lex.getString()));
440 } else if (token == "\\color") {
442 setLyXColor(lex.getString(), font.fontInfo());
443 } else if (token == "\\SpecialChar") {
444 auto_ptr<Inset> inset;
445 inset.reset(new InsetSpecialChar);
447 inset->setBuffer(*buf);
448 par.insertInset(par.size(), inset.release(), font, change);
449 } else if (token == "\\backslash") {
450 par.appendChar('\\', font, change);
451 } else if (token == "\\LyXTable") {
452 auto_ptr<Inset> inset(new InsetTabular(buf));
454 par.insertInset(par.size(), inset.release(), font, change);
455 } else if (token == "\\lyxline") {
456 auto_ptr<Inset> inset;
457 inset.reset(new InsetLine);
458 inset->setBuffer(*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 map<unsigned int, int> 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();
531 class TextCompletionList : public CompletionList
535 TextCompletionList(Cursor const & cur, WordList const * list)
536 : buffer_(cur.buffer()), pos_(0), list_(list)
539 virtual ~TextCompletionList() {}
542 virtual bool sorted() const { return true; }
544 virtual size_t size() const
546 return list_->size();
549 virtual docstring const & data(size_t idx) const
551 return list_->word(idx);
556 Buffer const * buffer_;
560 WordList const * list_;
564 bool Text::empty() const
566 return pars_.empty() || (pars_.size() == 1 && pars_[0].empty()
567 // FIXME: Should we consider the labeled type as empty too?
568 && pars_[0].layout().labeltype == LABEL_NO_LABEL);
572 double Text::spacing(Paragraph const & par) const
574 if (par.params().spacing().isDefault())
575 return owner_->buffer().params().spacing().getValue();
576 return par.params().spacing().getValue();
581 * This breaks a paragraph at the specified position.
582 * The new paragraph will:
583 * - Decrease depth by one (or change layout to default layout) when
584 * keep_layout == false
585 * - keep current depth and layout when keep_layout == true
587 static void breakParagraph(Text & text, pit_type par_offset, pos_type pos,
590 BufferParams const & bparams = text.inset().buffer().params();
591 ParagraphList & pars = text.paragraphs();
592 // create a new paragraph, and insert into the list
593 ParagraphList::iterator tmp =
594 pars.insert(boost::next(pars.begin(), par_offset + 1),
597 Paragraph & par = pars[par_offset];
599 // remember to set the inset_owner
600 tmp->setInsetOwner(&par.inInset());
601 // without doing that we get a crash when typing <Return> at the
602 // end of a paragraph
603 tmp->setPlainOrDefaultLayout(bparams.documentClass());
605 // layout stays the same with latex-environments
607 tmp->setLayout(par.layout());
608 tmp->setLabelWidthString(par.params().labelWidthString());
609 tmp->params().depth(par.params().depth());
610 } else if (par.params().depth() > 0) {
611 Paragraph const & hook = pars[text.outerHook(par_offset)];
612 tmp->setLayout(hook.layout());
613 // not sure the line below is useful
614 tmp->setLabelWidthString(par.params().labelWidthString());
615 tmp->params().depth(hook.params().depth());
618 bool const isempty = (par.allowEmpty() && par.empty());
620 if (!isempty && (par.size() > pos || par.empty())) {
621 tmp->setLayout(par.layout());
622 tmp->params().align(par.params().align());
623 tmp->setLabelWidthString(par.params().labelWidthString());
625 tmp->params().depth(par.params().depth());
626 tmp->params().noindent(par.params().noindent());
628 // move everything behind the break position
629 // to the new paragraph
631 /* Note: if !keepempty, empty() == true, then we reach
632 * here with size() == 0. So pos_end becomes - 1. This
633 * doesn't cause problems because both loops below
634 * enforce pos <= pos_end and 0 <= pos
636 pos_type pos_end = par.size() - 1;
638 for (pos_type i = pos, j = 0; i <= pos_end; ++i) {
639 if (moveItem(par, pos, *tmp, j, bparams)) {
645 // Move over the end-of-par change information
646 tmp->setChange(tmp->size(), par.lookupChange(par.size()));
647 par.setChange(par.size(), Change(bparams.trackChanges ?
648 Change::INSERTED : Change::UNCHANGED));
651 // Make sure that we keep the language when
652 // breaking paragraph.
654 Font changed = tmp->getFirstFontSettings(bparams);
655 Font const & old = par.getFontSettings(bparams, par.size());
656 changed.setLanguage(old.language());
657 tmp->setFont(0, changed);
664 bool const soa = par.params().startOfAppendix();
665 par.params().clear();
666 // do not lose start of appendix marker (bug 4212)
667 par.params().startOfAppendix(soa);
668 par.setPlainOrDefaultLayout(bparams.documentClass());
671 // layout stays the same with latex-environments
673 par.setLayout(tmp->layout());
674 par.setLabelWidthString(tmp->params().labelWidthString());
675 par.params().depth(tmp->params().depth());
680 void Text::breakParagraph(Cursor & cur, bool inverse_logic)
682 LASSERT(this == cur.text(), /**/);
684 Paragraph & cpar = cur.paragraph();
685 pit_type cpit = cur.pit();
687 DocumentClass const & tclass = cur.buffer()->params().documentClass();
688 Layout const & layout = cpar.layout();
690 if (cur.lastpos() == 0 && !cpar.allowEmpty()) {
691 if (changeDepthAllowed(cur, DEC_DEPTH))
692 changeDepth(cur, DEC_DEPTH);
694 setLayout(cur, tclass.defaultLayoutName());
698 // a layout change may affect also the following paragraph
699 recUndo(cur, cur.pit(), undoSpan(cur.pit()) - 1);
701 // Always break behind a space
702 // It is better to erase the space (Dekel)
703 if (cur.pos() != cur.lastpos() && cpar.isLineSeparator(cur.pos()))
704 cpar.eraseChar(cur.pos(), cur.buffer()->params().trackChanges);
706 // What should the layout for the new paragraph be?
707 bool keep_layout = inverse_logic ?
708 !layout.isEnvironment()
709 : layout.isEnvironment();
711 // We need to remember this before we break the paragraph, because
712 // that invalidates the layout variable
713 bool sensitive = layout.labeltype == LABEL_SENSITIVE;
715 // we need to set this before we insert the paragraph.
716 bool const isempty = cpar.allowEmpty() && cpar.empty();
718 lyx::breakParagraph(*this, cpit, cur.pos(), keep_layout);
720 // After this, neither paragraph contains any rows!
723 pit_type next_par = cpit + 1;
725 // well this is the caption hack since one caption is really enough
728 // set to standard-layout
729 //FIXME Check if this should be plainLayout() in some cases
730 pars_[cpit].applyLayout(tclass.defaultLayout());
732 // set to standard-layout
733 //FIXME Check if this should be plainLayout() in some cases
734 pars_[next_par].applyLayout(tclass.defaultLayout());
737 while (!pars_[next_par].empty() && pars_[next_par].isNewline(0)) {
738 if (!pars_[next_par].eraseChar(0, cur.buffer()->params().trackChanges))
739 break; // the character couldn't be deleted physically due to change tracking
742 cur.buffer()->updateBuffer();
744 // A singlePar update is not enough in this case.
745 cur.updateFlags(Update::Force);
747 // This check is necessary. Otherwise the new empty paragraph will
748 // be deleted automatically. And it is more friendly for the user!
749 if (cur.pos() != 0 || isempty)
750 setCursor(cur, cur.pit() + 1, 0);
752 setCursor(cur, cur.pit(), 0);
756 // needed to insert the selection
757 void Text::insertStringAsLines(DocIterator const & dit, docstring const & str,
760 BufferParams const & bparams = owner_->buffer().params();
761 pit_type pit = dit.pit();
762 pos_type pos = dit.pos();
764 // insert the string, don't insert doublespace
765 bool space_inserted = true;
766 for (docstring::const_iterator cit = str.begin();
767 cit != str.end(); ++cit) {
768 Paragraph & par = pars_[pit];
770 if (autoBreakRows_ && (!par.empty() || par.allowEmpty())) {
771 lyx::breakParagraph(*this, pit, pos,
772 par.layout().isEnvironment());
775 space_inserted = true;
779 // do not insert consecutive spaces if !free_spacing
780 } else if ((*cit == ' ' || *cit == '\t') &&
781 space_inserted && !par.isFreeSpacing()) {
783 } else if (*cit == '\t') {
784 if (!par.isFreeSpacing()) {
785 // tabs are like spaces here
786 par.insertChar(pos, ' ', font, bparams.trackChanges);
788 space_inserted = true;
790 par.insertChar(pos, *cit, font, bparams.trackChanges);
792 space_inserted = true;
794 } else if (!isPrintable(*cit)) {
795 // Ignore unprintables
798 // just insert the character
799 par.insertChar(pos, *cit, font, bparams.trackChanges);
801 space_inserted = (*cit == ' ');
807 // turn double CR to single CR, others are converted into one
808 // blank. Then insertStringAsLines is called
809 void Text::insertStringAsParagraphs(DocIterator const & dit, docstring const & str,
812 docstring linestr = str;
813 bool newline_inserted = false;
815 for (string::size_type i = 0, siz = linestr.size(); i < siz; ++i) {
816 if (linestr[i] == '\n') {
817 if (newline_inserted) {
818 // we know that \r will be ignored by
819 // insertStringAsLines. Of course, it is a dirty
820 // trick, but it works...
821 linestr[i - 1] = '\r';
825 newline_inserted = true;
827 } else if (isPrintable(linestr[i])) {
828 newline_inserted = false;
831 insertStringAsLines(dit, linestr, font);
835 // insert a character, moves all the following breaks in the
836 // same Paragraph one to the right and make a rebreak
837 void Text::insertChar(Cursor & cur, char_type c)
839 LASSERT(this == cur.text(), /**/);
841 cur.recordUndo(INSERT_UNDO);
843 TextMetrics const & tm = cur.bv().textMetrics(this);
844 Buffer const & buffer = *cur.buffer();
845 Paragraph & par = cur.paragraph();
846 // try to remove this
847 pit_type const pit = cur.pit();
849 bool const freeSpacing = par.layout().free_spacing ||
852 if (lyxrc.auto_number) {
853 static docstring const number_operators = from_ascii("+-/*");
854 static docstring const number_unary_operators = from_ascii("+-");
855 static docstring const number_seperators = from_ascii(".,:");
857 if (cur.current_font.fontInfo().number() == FONT_ON) {
858 if (!isDigit(c) && !contains(number_operators, c) &&
859 !(contains(number_seperators, c) &&
861 cur.pos() != cur.lastpos() &&
862 tm.displayFont(pit, cur.pos()).fontInfo().number() == FONT_ON &&
863 tm.displayFont(pit, cur.pos() - 1).fontInfo().number() == FONT_ON)
865 number(cur); // Set current_font.number to OFF
866 } else if (isDigit(c) &&
867 cur.real_current_font.isVisibleRightToLeft()) {
868 number(cur); // Set current_font.number to ON
870 if (cur.pos() != 0) {
871 char_type const c = par.getChar(cur.pos() - 1);
872 if (contains(number_unary_operators, c) &&
874 || par.isSeparator(cur.pos() - 2)
875 || par.isNewline(cur.pos() - 2))
877 setCharFont(pit, cur.pos() - 1, cur.current_font,
879 } else if (contains(number_seperators, c)
881 && tm.displayFont(pit, cur.pos() - 2).fontInfo().number() == FONT_ON) {
882 setCharFont(pit, cur.pos() - 1, cur.current_font,
889 // In Bidi text, we want spaces to be treated in a special way: spaces
890 // which are between words in different languages should get the
891 // paragraph's language; otherwise, spaces should keep the language
892 // they were originally typed in. This is only in effect while typing;
893 // after the text is already typed in, the user can always go back and
894 // explicitly set the language of a space as desired. But 99.9% of the
895 // time, what we're doing here is what the user actually meant.
897 // The following cases are the ones in which the language of the space
898 // should be changed to match that of the containing paragraph. In the
899 // depictions, lowercase is LTR, uppercase is RTL, underscore (_)
900 // represents a space, pipe (|) represents the cursor position (so the
901 // character before it is the one just typed in). The different cases
902 // are depicted logically (not visually), from left to right:
907 // Theoretically, there are other situations that we should, perhaps, deal
908 // with (e.g.: a|_A, A|_a). In practice, though, there really isn't any
909 // point (to understand why, just try to create this situation...).
911 if ((cur.pos() >= 2) && (par.isLineSeparator(cur.pos() - 1))) {
912 // get font in front and behind the space in question. But do NOT
913 // use getFont(cur.pos()) because the character c is not inserted yet
914 Font const pre_space_font = tm.displayFont(cur.pit(), cur.pos() - 2);
915 Font const & post_space_font = cur.real_current_font;
916 bool pre_space_rtl = pre_space_font.isVisibleRightToLeft();
917 bool post_space_rtl = post_space_font.isVisibleRightToLeft();
919 if (pre_space_rtl != post_space_rtl) {
920 // Set the space's language to match the language of the
921 // adjacent character whose direction is the paragraph's
922 // direction; don't touch other properties of the font
923 Language const * lang =
924 (pre_space_rtl == par.isRTL(buffer.params())) ?
925 pre_space_font.language() : post_space_font.language();
927 Font space_font = tm.displayFont(cur.pit(), cur.pos() - 1);
928 space_font.setLanguage(lang);
929 par.setFont(cur.pos() - 1, space_font);
933 // Next check, if there will be two blanks together or a blank at
934 // the beginning of a paragraph.
935 // I decided to handle blanks like normal characters, the main
936 // difference are the special checks when calculating the row.fill
937 // (blank does not count at the end of a row) and the check here
939 // When the free-spacing option is set for the current layout,
940 // disable the double-space checking
941 if (!freeSpacing && isLineSeparatorChar(c)) {
942 if (cur.pos() == 0) {
943 static bool sent_space_message = false;
944 if (!sent_space_message) {
945 cur.message(_("You cannot insert a space at the "
946 "beginning of a paragraph. Please read the Tutorial."));
947 sent_space_message = true;
951 LASSERT(cur.pos() > 0, /**/);
952 if ((par.isLineSeparator(cur.pos() - 1) || par.isNewline(cur.pos() - 1))
953 && !par.isDeleted(cur.pos() - 1)) {
954 static bool sent_space_message = false;
955 if (!sent_space_message) {
956 cur.message(_("You cannot type two spaces this way. "
957 "Please read the Tutorial."));
958 sent_space_message = true;
964 par.insertChar(cur.pos(), c, cur.current_font,
965 cur.buffer()->params().trackChanges);
966 cur.checkBufferStructure();
968 // cur.updateFlags(Update::Force);
969 bool boundary = cur.boundary()
970 || tm.isRTLBoundary(cur.pit(), cur.pos() + 1);
971 setCursor(cur, cur.pit(), cur.pos() + 1, false, boundary);
976 void Text::charInserted(Cursor & cur)
978 Paragraph & par = cur.paragraph();
980 // Here we call finishUndo for every 20 characters inserted.
981 // This is from my experience how emacs does it. (Lgb)
982 if (undo_counter_ < 20) {
989 // register word if a non-letter was entered
991 && !par.isWordSeparator(cur.pos() - 2)
992 && par.isWordSeparator(cur.pos() - 1)) {
993 // get the word in front of cursor
994 LASSERT(this == cur.text(), /**/);
995 cur.paragraph().updateWords();
1000 // the cursor set functions have a special mechanism. When they
1001 // realize, that you left an empty paragraph, they will delete it.
1003 bool Text::cursorForwardOneWord(Cursor & cur)
1005 LASSERT(this == cur.text(), /**/);
1007 pos_type const lastpos = cur.lastpos();
1008 pit_type pit = cur.pit();
1009 pos_type pos = cur.pos();
1010 Paragraph const & par = cur.paragraph();
1012 // Paragraph boundary is a word boundary
1013 if (pos == lastpos) {
1014 if (pit != cur.lastpit())
1015 return setCursor(cur, pit + 1, 0);
1020 if (lyxrc.mac_like_word_movement) {
1021 // Skip through trailing punctuation and spaces.
1022 while (pos != lastpos && (par.isChar(pos) || par.isSpace(pos)))
1025 // Skip over either a non-char inset or a full word
1026 if (pos != lastpos && par.isWordSeparator(pos))
1028 else while (pos != lastpos && !par.isWordSeparator(pos))
1031 LASSERT(pos < lastpos, /**/); // see above
1032 if (!par.isWordSeparator(pos))
1033 while (pos != lastpos && !par.isWordSeparator(pos))
1035 else if (par.isChar(pos))
1036 while (pos != lastpos && par.isChar(pos))
1038 else if (!par.isSpace(pos)) // non-char inset
1041 // Skip over white space
1042 while (pos != lastpos && par.isSpace(pos))
1046 return setCursor(cur, pit, pos);
1050 bool Text::cursorBackwardOneWord(Cursor & cur)
1052 LASSERT(this == cur.text(), /**/);
1054 pit_type pit = cur.pit();
1055 pos_type pos = cur.pos();
1056 Paragraph & par = cur.paragraph();
1058 // Paragraph boundary is a word boundary
1059 if (pos == 0 && pit != 0)
1060 return setCursor(cur, pit - 1, getPar(pit - 1).size());
1062 if (lyxrc.mac_like_word_movement) {
1063 // Skip through punctuation and spaces.
1064 while (pos != 0 && (par.isChar(pos - 1) || par.isSpace(pos - 1)))
1067 // Skip over either a non-char inset or a full word
1068 if (pos != 0 && par.isWordSeparator(pos - 1) && !par.isChar(pos - 1))
1070 else while (pos != 0 && !par.isWordSeparator(pos - 1))
1073 // Skip over white space
1074 while (pos != 0 && par.isSpace(pos - 1))
1077 if (pos != 0 && !par.isWordSeparator(pos - 1))
1078 while (pos != 0 && !par.isWordSeparator(pos - 1))
1080 else if (pos != 0 && par.isChar(pos - 1))
1081 while (pos != 0 && par.isChar(pos - 1))
1083 else if (pos != 0 && !par.isSpace(pos - 1)) // non-char inset
1087 return setCursor(cur, pit, pos);
1091 bool Text::cursorVisLeftOneWord(Cursor & cur)
1093 LASSERT(this == cur.text(), /**/);
1095 pos_type left_pos, right_pos;
1096 bool left_is_letter, right_is_letter;
1098 Cursor temp_cur = cur;
1100 // always try to move at least once...
1101 while (temp_cur.posVisLeft(true /* skip_inset */)) {
1103 // collect some information about current cursor position
1104 temp_cur.getSurroundingPos(left_pos, right_pos);
1106 (left_pos > -1 ? !temp_cur.paragraph().isWordSeparator(left_pos) : false);
1108 (right_pos > -1 ? !temp_cur.paragraph().isWordSeparator(right_pos) : false);
1110 // if we're not at a letter/non-letter boundary, continue moving
1111 if (left_is_letter == right_is_letter)
1114 // we should stop when we have an LTR word on our right or an RTL word
1116 if ((left_is_letter && temp_cur.paragraph().getFontSettings(
1117 temp_cur.buffer()->params(), left_pos).isRightToLeft())
1118 || (right_is_letter && !temp_cur.paragraph().getFontSettings(
1119 temp_cur.buffer()->params(), right_pos).isRightToLeft()))
1123 return setCursor(cur, temp_cur.pit(), temp_cur.pos(),
1124 true, temp_cur.boundary());
1128 bool Text::cursorVisRightOneWord(Cursor & cur)
1130 LASSERT(this == cur.text(), /**/);
1132 pos_type left_pos, right_pos;
1133 bool left_is_letter, right_is_letter;
1135 Cursor temp_cur = cur;
1137 // always try to move at least once...
1138 while (temp_cur.posVisRight(true /* skip_inset */)) {
1140 // collect some information about current cursor position
1141 temp_cur.getSurroundingPos(left_pos, right_pos);
1143 (left_pos > -1 ? !temp_cur.paragraph().isWordSeparator(left_pos) : false);
1145 (right_pos > -1 ? !temp_cur.paragraph().isWordSeparator(right_pos) : false);
1147 // if we're not at a letter/non-letter boundary, continue moving
1148 if (left_is_letter == right_is_letter)
1151 // we should stop when we have an LTR word on our right or an RTL word
1153 if ((left_is_letter && temp_cur.paragraph().getFontSettings(
1154 temp_cur.buffer()->params(),
1155 left_pos).isRightToLeft())
1156 || (right_is_letter && !temp_cur.paragraph().getFontSettings(
1157 temp_cur.buffer()->params(),
1158 right_pos).isRightToLeft()))
1162 return setCursor(cur, temp_cur.pit(), temp_cur.pos(),
1163 true, temp_cur.boundary());
1167 void Text::selectWord(Cursor & cur, word_location loc)
1169 LASSERT(this == cur.text(), /**/);
1170 CursorSlice from = cur.top();
1171 CursorSlice to = cur.top();
1172 getWord(from, to, loc);
1173 if (cur.top() != from)
1174 setCursor(cur, from.pit(), from.pos());
1177 if (!cur.selection())
1179 setCursor(cur, to.pit(), to.pos());
1181 cur.setWordSelection(true);
1185 void Text::selectAll(Cursor & cur)
1187 LASSERT(this == cur.text(), /**/);
1188 if (cur.lastpos() == 0 && cur.lastpit() == 0)
1190 // If the cursor is at the beginning, make sure the cursor ends there
1191 if (cur.pit() == 0 && cur.pos() == 0) {
1192 setCursor(cur, cur.lastpit(), getPar(cur.lastpit()).size());
1194 setCursor(cur, 0, 0);
1196 setCursor(cur, 0, 0);
1198 setCursor(cur, cur.lastpit(), getPar(cur.lastpit()).size());
1204 // Select the word currently under the cursor when no
1205 // selection is currently set
1206 bool Text::selectWordWhenUnderCursor(Cursor & cur, word_location loc)
1208 LASSERT(this == cur.text(), /**/);
1209 if (cur.selection())
1211 selectWord(cur, loc);
1212 return cur.selection();
1216 void Text::acceptOrRejectChanges(Cursor & cur, ChangeOp op)
1218 LASSERT(this == cur.text(), /**/);
1220 if (!cur.selection()) {
1221 bool const changed = cur.paragraph().isChanged(cur.pos());
1222 if (!(changed && findNextChange(&cur.bv())))
1226 cur.recordUndoSelection();
1228 pit_type begPit = cur.selectionBegin().pit();
1229 pit_type endPit = cur.selectionEnd().pit();
1231 pos_type begPos = cur.selectionBegin().pos();
1232 pos_type endPos = cur.selectionEnd().pos();
1234 // keep selection info, because endPos becomes invalid after the first loop
1235 bool endsBeforeEndOfPar = (endPos < pars_[endPit].size());
1237 // first, accept/reject changes within each individual paragraph (do not consider end-of-par)
1239 for (pit_type pit = begPit; pit <= endPit; ++pit) {
1240 pos_type parSize = pars_[pit].size();
1242 // ignore empty paragraphs; otherwise, an assertion will fail for
1243 // acceptChanges(bparams, 0, 0) or rejectChanges(bparams, 0, 0)
1247 // do not consider first paragraph if the cursor starts at pos size()
1248 if (pit == begPit && begPos == parSize)
1251 // do not consider last paragraph if the cursor ends at pos 0
1252 if (pit == endPit && endPos == 0)
1253 break; // last iteration anyway
1255 pos_type left = (pit == begPit ? begPos : 0);
1256 pos_type right = (pit == endPit ? endPos : parSize);
1259 pars_[pit].acceptChanges(left, right);
1261 pars_[pit].rejectChanges(left, right);
1265 // next, accept/reject imaginary end-of-par characters
1267 for (pit_type pit = begPit; pit <= endPit; ++pit) {
1268 pos_type pos = pars_[pit].size();
1270 // skip if the selection ends before the end-of-par
1271 if (pit == endPit && endsBeforeEndOfPar)
1272 break; // last iteration anyway
1274 // skip if this is not the last paragraph of the document
1275 // note: the user should be able to accept/reject the par break of the last par!
1276 if (pit == endPit && pit + 1 != int(pars_.size()))
1277 break; // last iteration anway
1280 if (pars_[pit].isInserted(pos)) {
1281 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1282 } else if (pars_[pit].isDeleted(pos)) {
1283 if (pit + 1 == int(pars_.size())) {
1284 // we cannot remove a par break at the end of the last paragraph;
1285 // instead, we mark it unchanged
1286 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1288 mergeParagraph(cur.buffer()->params(), pars_, pit);
1294 if (pars_[pit].isDeleted(pos)) {
1295 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1296 } else if (pars_[pit].isInserted(pos)) {
1297 if (pit + 1 == int(pars_.size())) {
1298 // we mark the par break at the end of the last paragraph unchanged
1299 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1301 mergeParagraph(cur.buffer()->params(), pars_, pit);
1309 // finally, invoke the DEPM
1311 deleteEmptyParagraphMechanism(begPit, endPit, cur.buffer()->params().trackChanges);
1316 cur.clearSelection();
1317 setCursorIntern(cur, begPit, begPos);
1318 cur.updateFlags(Update::Force);
1319 cur.buffer()->updateBuffer();
1323 void Text::acceptChanges()
1325 BufferParams const & bparams = owner_->buffer().params();
1326 lyx::acceptChanges(pars_, bparams);
1327 deleteEmptyParagraphMechanism(0, pars_.size() - 1, bparams.trackChanges);
1331 void Text::rejectChanges()
1333 BufferParams const & bparams = owner_->buffer().params();
1334 pit_type pars_size = static_cast<pit_type>(pars_.size());
1336 // first, reject changes within each individual paragraph
1337 // (do not consider end-of-par)
1338 for (pit_type pit = 0; pit < pars_size; ++pit) {
1339 if (!pars_[pit].empty()) // prevent assertion failure
1340 pars_[pit].rejectChanges(0, pars_[pit].size());
1343 // next, reject imaginary end-of-par characters
1344 for (pit_type pit = 0; pit < pars_size; ++pit) {
1345 pos_type pos = pars_[pit].size();
1347 if (pars_[pit].isDeleted(pos)) {
1348 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1349 } else if (pars_[pit].isInserted(pos)) {
1350 if (pit == pars_size - 1) {
1351 // we mark the par break at the end of the last
1352 // paragraph unchanged
1353 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1355 mergeParagraph(bparams, pars_, pit);
1362 // finally, invoke the DEPM
1363 deleteEmptyParagraphMechanism(0, pars_size - 1, bparams.trackChanges);
1367 void Text::deleteWordForward(Cursor & cur)
1369 LASSERT(this == cur.text(), /**/);
1370 if (cur.lastpos() == 0)
1374 cur.setSelection(true);
1375 cursorForwardOneWord(cur);
1377 cutSelection(cur, true, false);
1378 cur.checkBufferStructure();
1383 void Text::deleteWordBackward(Cursor & cur)
1385 LASSERT(this == cur.text(), /**/);
1386 if (cur.lastpos() == 0)
1387 cursorBackward(cur);
1390 cur.setSelection(true);
1391 cursorBackwardOneWord(cur);
1393 cutSelection(cur, true, false);
1394 cur.checkBufferStructure();
1399 // Kill to end of line.
1400 void Text::changeCase(Cursor & cur, TextCase action)
1402 LASSERT(this == cur.text(), /**/);
1406 bool gotsel = false;
1407 if (cur.selection()) {
1408 from = cur.selBegin();
1413 getWord(from, to, PARTIAL_WORD);
1414 cursorForwardOneWord(cur);
1417 cur.recordUndoSelection();
1419 pit_type begPit = from.pit();
1420 pit_type endPit = to.pit();
1422 pos_type begPos = from.pos();
1423 pos_type endPos = to.pos();
1425 pos_type right = 0; // needed after the for loop
1427 for (pit_type pit = begPit; pit <= endPit; ++pit) {
1428 Paragraph & par = pars_[pit];
1429 pos_type const pos = (pit == begPit ? begPos : 0);
1430 right = (pit == endPit ? endPos : par.size());
1431 par.changeCase(cur.buffer()->params(), pos, right, action);
1434 // the selection may have changed due to logically-only deleted chars
1436 setCursor(cur, begPit, begPos);
1438 setCursor(cur, endPit, right);
1441 setCursor(cur, endPit, right);
1443 cur.checkBufferStructure();
1447 bool Text::handleBibitems(Cursor & cur)
1449 if (cur.paragraph().layout().labeltype != LABEL_BIBLIO)
1455 BufferParams const & bufparams = cur.buffer()->params();
1456 Paragraph const & par = cur.paragraph();
1457 Cursor prevcur = cur;
1458 if (cur.pit() > 0) {
1460 prevcur.pos() = prevcur.lastpos();
1462 Paragraph const & prevpar = prevcur.paragraph();
1464 // if a bibitem is deleted, merge with previous paragraph
1465 // if this is a bibliography item as well
1466 if (cur.pit() > 0 && par.layout() == prevpar.layout()) {
1467 cur.recordUndo(ATOMIC_UNDO, prevcur.pit());
1468 mergeParagraph(bufparams, cur.text()->paragraphs(),
1470 cur.buffer()->updateBuffer();
1471 setCursorIntern(cur, prevcur.pit(), prevcur.pos());
1472 cur.updateFlags(Update::Force);
1476 // otherwise reset to default
1477 cur.paragraph().setPlainOrDefaultLayout(bufparams.documentClass());
1482 bool Text::erase(Cursor & cur)
1484 LASSERT(this == cur.text(), return false);
1485 bool needsUpdate = false;
1486 Paragraph & par = cur.paragraph();
1488 if (cur.pos() != cur.lastpos()) {
1489 // this is the code for a normal delete, not pasting
1491 cur.recordUndo(DELETE_UNDO);
1492 bool const was_inset = cur.paragraph().isInset(cur.pos());
1493 if(!par.eraseChar(cur.pos(), cur.buffer()->params().trackChanges))
1494 // the character has been logically deleted only => skip it
1495 cur.top().forwardPos();
1498 cur.buffer()->updateBuffer();
1500 cur.checkBufferStructure();
1503 if (cur.pit() == cur.lastpit())
1504 return dissolveInset(cur);
1506 if (!par.isMergedOnEndOfParDeletion(cur.buffer()->params().trackChanges)) {
1507 par.setChange(cur.pos(), Change(Change::DELETED));
1511 setCursorIntern(cur, cur.pit() + 1, 0);
1512 needsUpdate = backspacePos0(cur);
1516 needsUpdate |= handleBibitems(cur);
1519 // Make sure the cursor is correct. Is this really needed?
1520 // No, not really... at least not here!
1521 cur.text()->setCursor(cur.top(), cur.pit(), cur.pos());
1522 cur.checkBufferStructure();
1529 bool Text::backspacePos0(Cursor & cur)
1531 LASSERT(this == cur.text(), /**/);
1535 bool needsUpdate = false;
1537 BufferParams const & bufparams = cur.buffer()->params();
1538 DocumentClass const & tclass = bufparams.documentClass();
1539 ParagraphList & plist = cur.text()->paragraphs();
1540 Paragraph const & par = cur.paragraph();
1541 Cursor prevcur = cur;
1543 prevcur.pos() = prevcur.lastpos();
1544 Paragraph const & prevpar = prevcur.paragraph();
1546 // is it an empty paragraph?
1547 if (cur.lastpos() == 0
1548 || (cur.lastpos() == 1 && par.isSeparator(0))) {
1549 cur.recordUndo(ATOMIC_UNDO, prevcur.pit(), cur.pit());
1550 plist.erase(boost::next(plist.begin(), cur.pit()));
1553 // is previous par empty?
1554 else if (prevcur.lastpos() == 0
1555 || (prevcur.lastpos() == 1 && prevpar.isSeparator(0))) {
1556 cur.recordUndo(ATOMIC_UNDO, prevcur.pit(), cur.pit());
1557 plist.erase(boost::next(plist.begin(), prevcur.pit()));
1560 // Pasting is not allowed, if the paragraphs have different
1561 // layouts. I think it is a real bug of all other
1562 // word processors to allow it. It confuses the user.
1563 // Correction: Pasting is always allowed with standard-layout
1564 // or the empty layout.
1565 else if (par.layout() == prevpar.layout()
1566 || tclass.isDefaultLayout(par.layout())
1567 || tclass.isPlainLayout(par.layout())) {
1568 cur.recordUndo(ATOMIC_UNDO, prevcur.pit());
1569 mergeParagraph(bufparams, plist, prevcur.pit());
1574 cur.buffer()->updateBuffer();
1575 setCursorIntern(cur, prevcur.pit(), prevcur.pos());
1582 bool Text::backspace(Cursor & cur)
1584 LASSERT(this == cur.text(), /**/);
1585 bool needsUpdate = false;
1586 if (cur.pos() == 0) {
1588 return dissolveInset(cur);
1590 Paragraph & prev_par = pars_[cur.pit() - 1];
1592 if (!prev_par.isMergedOnEndOfParDeletion(cur.buffer()->params().trackChanges)) {
1593 prev_par.setChange(prev_par.size(), Change(Change::DELETED));
1594 setCursorIntern(cur, cur.pit() - 1, prev_par.size());
1597 // The cursor is at the beginning of a paragraph, so
1598 // the backspace will collapse two paragraphs into one.
1599 needsUpdate = backspacePos0(cur);
1602 // this is the code for a normal backspace, not pasting
1604 cur.recordUndo(DELETE_UNDO);
1605 // We used to do cursorBackwardIntern() here, but it is
1606 // not a good idea since it triggers the auto-delete
1607 // mechanism. So we do a cursorBackwardIntern()-lite,
1608 // without the dreaded mechanism. (JMarc)
1609 setCursorIntern(cur, cur.pit(), cur.pos() - 1,
1610 false, cur.boundary());
1611 bool const was_inset = cur.paragraph().isInset(cur.pos());
1612 cur.paragraph().eraseChar(cur.pos(), cur.buffer()->params().trackChanges);
1614 cur.buffer()->updateBuffer();
1616 cur.checkBufferStructure();
1619 if (cur.pos() == cur.lastpos())
1620 cur.setCurrentFont();
1622 needsUpdate |= handleBibitems(cur);
1624 // A singlePar update is not enough in this case.
1625 // cur.updateFlags(Update::Force);
1626 setCursor(cur.top(), cur.pit(), cur.pos());
1632 bool Text::dissolveInset(Cursor & cur)
1634 LASSERT(this == cur.text(), return false);
1636 if (isMainText() || cur.inset().nargs() != 1)
1639 cur.recordUndoInset();
1641 cur.selHandle(false);
1643 pos_type spos = cur.pos();
1644 pit_type spit = cur.pit();
1645 ParagraphList plist;
1646 if (cur.lastpit() != 0 || cur.lastpos() != 0)
1647 plist = paragraphs();
1649 // store cursor offset
1653 Buffer & b = *cur.buffer();
1654 cur.paragraph().eraseChar(cur.pos(), b.params().trackChanges);
1655 if (!plist.empty()) {
1656 // ERT paragraphs have the Language latex_language.
1657 // This is invalid outside of ERT, so we need to
1658 // change it to the buffer language.
1659 ParagraphList::iterator it = plist.begin();
1660 ParagraphList::iterator it_end = plist.end();
1661 for (; it != it_end; it++)
1662 it->changeLanguage(b.params(), latex_language, b.language());
1664 pasteParagraphList(cur, plist, b.params().documentClassPtr(),
1665 b.errorList("Paste"));
1667 cur.pit() = min(cur.lastpit(), spit);
1668 cur.pos() = min(cur.lastpos(), spos);
1670 // this is the least that needs to be done (bug 6003)
1671 // in the above case, pasteParagraphList handles this
1672 cur.buffer()->updateBuffer();
1674 // Ensure the current language is set correctly (bug 6292)
1675 cur.text()->setCursor(cur, cur.pit(), cur.pos());
1676 cur.clearSelection();
1682 void Text::getWord(CursorSlice & from, CursorSlice & to,
1683 word_location const loc) const
1686 pars_[to.pit()].locateWord(from.pos(), to.pos(), loc);
1690 void Text::write(ostream & os) const
1692 Buffer const & buf = owner_->buffer();
1693 ParagraphList::const_iterator pit = paragraphs().begin();
1694 ParagraphList::const_iterator end = paragraphs().end();
1696 for (; pit != end; ++pit)
1697 pit->write(os, buf.params(), dth);
1699 // Close begin_deeper
1700 for(; dth > 0; --dth)
1701 os << "\n\\end_deeper";
1705 bool Text::read(Lexer & lex,
1706 ErrorList & errorList, InsetText * insetPtr)
1708 Buffer const & buf = owner_->buffer();
1709 depth_type depth = 0;
1712 while (lex.isOK()) {
1714 string const token = lex.getString();
1719 if (token == "\\end_inset")
1722 if (token == "\\end_body")
1725 if (token == "\\begin_body")
1728 if (token == "\\end_document") {
1733 if (token == "\\begin_layout") {
1734 lex.pushToken(token);
1737 par.setInsetOwner(insetPtr);
1738 par.params().depth(depth);
1739 par.setFont(0, Font(inherit_font, buf.params().language));
1740 pars_.push_back(par);
1741 readParagraph(pars_.back(), lex, errorList);
1743 // register the words in the global word list
1744 pars_.back().updateWords();
1745 } else if (token == "\\begin_deeper") {
1747 } else if (token == "\\end_deeper") {
1749 lex.printError("\\end_deeper: " "depth is already null");
1753 LYXERR0("Handling unknown body token: `" << token << '\'');
1757 // avoid a crash on weird documents (bug 4859)
1758 if (pars_.empty()) {
1760 par.setInsetOwner(insetPtr);
1761 par.params().depth(depth);
1762 par.setFont(0, Font(inherit_font,
1763 buf.params().language));
1764 par.setPlainOrDefaultLayout(buf.params().documentClass());
1765 pars_.push_back(par);
1771 // Returns the current font and depth as a message.
1772 docstring Text::currentState(Cursor const & cur) const
1774 LASSERT(this == cur.text(), /**/);
1775 Buffer & buf = *cur.buffer();
1776 Paragraph const & par = cur.paragraph();
1777 odocstringstream os;
1779 if (buf.params().trackChanges)
1780 os << _("[Change Tracking] ");
1782 Change change = par.lookupChange(cur.pos());
1784 if (change.changed()) {
1785 Author const & a = buf.params().authors().get(change.author);
1786 os << _("Change: ") << a.name();
1787 if (!a.email().empty())
1788 os << " (" << a.email() << ")";
1789 // FIXME ctime is english, we should translate that
1790 os << _(" at ") << ctime(&change.changetime);
1794 // I think we should only show changes from the default
1796 // No, from the document font (MV)
1797 Font font = cur.real_current_font;
1798 font.fontInfo().reduce(buf.params().getFont().fontInfo());
1800 os << bformat(_("Font: %1$s"), font.stateText(&buf.params()));
1802 // The paragraph depth
1803 int depth = cur.paragraph().getDepth();
1805 os << bformat(_(", Depth: %1$d"), depth);
1807 // The paragraph spacing, but only if different from
1809 Spacing const & spacing = par.params().spacing();
1810 if (!spacing.isDefault()) {
1811 os << _(", Spacing: ");
1812 switch (spacing.getSpace()) {
1813 case Spacing::Single:
1816 case Spacing::Onehalf:
1819 case Spacing::Double:
1822 case Spacing::Other:
1823 os << _("Other (") << from_ascii(spacing.getValueAsString()) << ')';
1825 case Spacing::Default:
1826 // should never happen, do nothing
1831 #ifdef DEVEL_VERSION
1832 os << _(", Inset: ") << &cur.inset();
1833 os << _(", Paragraph: ") << cur.pit();
1834 os << _(", Id: ") << par.id();
1835 os << _(", Position: ") << cur.pos();
1836 // FIXME: Why is the check for par.size() needed?
1837 // We are called with cur.pos() == par.size() quite often.
1838 if (!par.empty() && cur.pos() < par.size()) {
1839 // Force output of code point, not character
1840 size_t const c = par.getChar(cur.pos());
1841 os << _(", Char: 0x") << hex << c;
1843 os << _(", Boundary: ") << cur.boundary();
1844 // Row & row = cur.textRow();
1845 // os << bformat(_(", Row b:%1$d e:%2$d"), row.pos(), row.endpos());
1851 docstring Text::getPossibleLabel(Cursor const & cur) const
1853 pit_type pit = cur.pit();
1855 Layout const * layout = &(pars_[pit].layout());
1858 docstring par_text = pars_[pit].asString();
1860 // The return string of math matrices might contain linebreaks
1861 par_text = subst(par_text, '\n', '-');
1862 int const numwords = 3;
1863 for (int i = 0; i < numwords; ++i) {
1864 if (par_text.empty())
1867 par_text = split(par_text, head, ' ');
1868 // Is it legal to use spaces in labels ?
1874 // Make sure it isn't too long
1875 unsigned int const max_label_length = 32;
1876 if (text.size() > max_label_length)
1877 text.resize(max_label_length);
1879 // Will contain the label prefix.
1882 // For section, subsection, etc...
1883 if (layout->latextype == LATEX_PARAGRAPH && pit != 0) {
1884 Layout const * layout2 = &(pars_[pit - 1].layout());
1885 if (layout2->latextype != LATEX_PARAGRAPH) {
1890 if (layout->latextype != LATEX_PARAGRAPH)
1891 name = layout->refprefix;
1893 // For captions, we just take the caption type
1894 Inset * caption_inset = cur.innerInsetOfType(CAPTION_CODE);
1895 if (caption_inset) {
1896 string const & ftype = static_cast<InsetCaption *>(caption_inset)->type();
1897 FloatList const & fl = cur.buffer()->params().documentClass().floats();
1898 if (fl.typeExist(ftype)) {
1899 Floating const & flt = fl.getType(ftype);
1900 name = from_utf8(flt.refPrefix());
1903 name = from_utf8(ftype.substr(0,3));
1906 // If none of the above worked, see if the inset knows.
1908 InsetLayout const & il = cur.inset().getLayout();
1909 name = il.refprefix();
1914 // We should allow customization of the separator or else change it
1915 text = name + ':' + text;
1921 docstring Text::asString(int options) const
1923 return asString(0, pars_.size(), options);
1927 docstring Text::asString(pit_type beg, pit_type end, int options) const
1929 size_t i = size_t(beg);
1930 docstring str = pars_[i].asString(options);
1931 for (++i; i != size_t(end); ++i) {
1933 str += pars_[i].asString(options);
1940 void Text::charsTranspose(Cursor & cur)
1942 LASSERT(this == cur.text(), /**/);
1944 pos_type pos = cur.pos();
1946 // If cursor is at beginning or end of paragraph, do nothing.
1947 if (pos == cur.lastpos() || pos == 0)
1950 Paragraph & par = cur.paragraph();
1952 // Get the positions of the characters to be transposed.
1953 pos_type pos1 = pos - 1;
1954 pos_type pos2 = pos;
1956 // In change tracking mode, ignore deleted characters.
1957 while (pos2 < cur.lastpos() && par.isDeleted(pos2))
1959 if (pos2 == cur.lastpos())
1962 while (pos1 >= 0 && par.isDeleted(pos1))
1967 // Don't do anything if one of the "characters" is not regular text.
1968 if (par.isInset(pos1) || par.isInset(pos2))
1971 // Store the characters to be transposed (including font information).
1972 char_type const char1 = par.getChar(pos1);
1974 par.getFontSettings(cur.buffer()->params(), pos1);
1976 char_type const char2 = par.getChar(pos2);
1978 par.getFontSettings(cur.buffer()->params(), pos2);
1980 // And finally, we are ready to perform the transposition.
1981 // Track the changes if Change Tracking is enabled.
1982 bool const trackChanges = cur.buffer()->params().trackChanges;
1986 par.eraseChar(pos2, trackChanges);
1987 par.eraseChar(pos1, trackChanges);
1988 par.insertChar(pos1, char2, font2, trackChanges);
1989 par.insertChar(pos2, char1, font1, trackChanges);
1991 cur.checkBufferStructure();
1993 // After the transposition, move cursor to after the transposition.
1994 setCursor(cur, cur.pit(), pos2);
1999 DocIterator Text::macrocontextPosition() const
2001 return macrocontext_position_;
2005 void Text::setMacrocontextPosition(DocIterator const & pos)
2007 macrocontext_position_ = pos;
2011 docstring Text::previousWord(CursorSlice const & sl) const
2013 CursorSlice from = sl;
2014 CursorSlice to = sl;
2015 getWord(from, to, PREVIOUS_WORD);
2016 if (sl == from || to == from)
2019 Paragraph const & par = sl.paragraph();
2020 return par.asString(from.pos(), to.pos());
2024 bool Text::completionSupported(Cursor const & cur) const
2026 Paragraph const & par = cur.paragraph();
2027 return cur.pos() > 0
2028 && (cur.pos() >= par.size() || par.isWordSeparator(cur.pos()))
2029 && !par.isWordSeparator(cur.pos() - 1);
2033 CompletionList const * Text::createCompletionList(Cursor const & cur) const
2035 WordList const * list = theWordList(*cur.getFont().language());
2036 return new TextCompletionList(cur, list);
2040 bool Text::insertCompletion(Cursor & cur, docstring const & s, bool /*finished*/)
2042 LASSERT(cur.bv().cursor() == cur, /**/);
2044 cur.bv().cursor() = cur;
2045 if (!(cur.result().update() & Update::Force))
2046 cur.updateFlags(cur.result().update() | Update::SinglePar);
2051 docstring Text::completionPrefix(Cursor const & cur) const
2053 return previousWord(cur.top());