X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FText.cpp;h=932a3929d79bb4da2965b8cad4e1d8d671d9abe5;hb=f08f5821ec5d29232bccb342a5b1ff86600b0716;hp=fbdb2e7eccca0e84cf8b09d7c15731287356af30;hpb=5fd5cf41c0a79919d219c73193de54b57d2b1f68;p=lyx.git

diff --git a/src/Text.cpp b/src/Text.cpp
index fbdb2e7ecc..932a3929d7 100644
--- a/src/Text.cpp
+++ b/src/Text.cpp
@@ -30,7 +30,6 @@
 #include "Cursor.h"
 #include "CutAndPaste.h"
 #include "DispatchResult.h"
-#include "Encoding.h"
 #include "ErrorList.h"
 #include "FuncRequest.h"
 #include "factory.h"
@@ -46,21 +45,21 @@
 #include "ParIterator.h"
 #include "TextClass.h"
 #include "TextMetrics.h"
-#include "VSpace.h"
 #include "WordLangTuple.h"
 #include "WordList.h"
 
 #include "insets/InsetText.h"
 #include "insets/InsetBibitem.h"
 #include "insets/InsetCaption.h"
-#include "insets/InsetLine.h"
 #include "insets/InsetNewline.h"
 #include "insets/InsetNewpage.h"
-#include "insets/InsetOptArg.h"
+#include "insets/InsetArgument.h"
+#include "insets/InsetIPAMacro.h"
 #include "insets/InsetSpace.h"
 #include "insets/InsetSpecialChar.h"
 #include "insets/InsetTabular.h"
 
+#include "support/convert.h"
 #include "support/debug.h"
 #include "support/docstream.h"
 #include "support/gettext.h"
@@ -70,8 +69,34 @@
 
 #include <boost/next_prior.hpp>
 
+#include <limits>
 #include <sstream>
 
+
+// TODO: replace if in Text::readParToken() with compile time switch
+#if 0
+
+#include "support/metahash.h"
+
+typedef boost::mpl::string<'\\end','_lay','out'> end_layout;
+typedef boost::mpl::string<'\\end','in','set'>   end_inset;
+
+void foo()
+{
+	std::string token = "\\end_layout";
+
+	switch (boost::hash_value(token)) {
+		case lyx::support::hash_string<end_layout>::value:
+			return;
+		case lyx::support::hash_string<end_inset>::value:
+			return;
+		default: ;
+	};
+
+}
+#endif
+
+
 using namespace std;
 using namespace lyx::support;
 
@@ -171,91 +196,100 @@ void mergeParagraph(BufferParams const & bparams,
 }
 
 
-pit_type depthHook(pit_type pit, ParagraphList const & pars, depth_type depth)
+Text::Text(InsetText * owner, bool use_default_layout)
+	: owner_(owner), autoBreakRows_(false), undo_counter_(0)
+{
+	pars_.push_back(Paragraph());
+	Paragraph & par = pars_.back();
+	par.setInsetOwner(owner);
+	DocumentClass const & dc = owner->buffer().params().documentClass();
+	if (use_default_layout)
+		par.setDefaultLayout(dc);
+	else
+		par.setPlainLayout(dc);
+}
+
+
+Text::Text(InsetText * owner, Text const & text)
+	: owner_(owner), autoBreakRows_(text.autoBreakRows_), undo_counter_(0)
+{
+	pars_ = text.pars_;
+	ParagraphList::iterator const end = pars_.end();
+	ParagraphList::iterator it = pars_.begin();
+	for (; it != end; ++it)
+		it->setInsetOwner(owner);
+}
+
+
+pit_type Text::depthHook(pit_type pit, depth_type depth) const
 {
 	pit_type newpit = pit;
 
 	if (newpit != 0)
 		--newpit;
 
-	while (newpit != 0 && pars[newpit].getDepth() > depth)
+	while (newpit != 0 && pars_[newpit].getDepth() > depth)
 		--newpit;
 
-	if (pars[newpit].getDepth() > depth)
+	if (pars_[newpit].getDepth() > depth)
 		return pit;
 
 	return newpit;
 }
 
 
-pit_type outerHook(pit_type par_offset, ParagraphList const & pars)
+pit_type Text::outerHook(pit_type par_offset) const
 {
-	Paragraph const & par = pars[par_offset];
+	Paragraph const & par = pars_[par_offset];
 
 	if (par.getDepth() == 0)
-		return pars.size();
-	return depthHook(par_offset, pars, depth_type(par.getDepth() - 1));
+		return pars_.size();
+	return depthHook(par_offset, depth_type(par.getDepth() - 1));
 }
 
 
-bool isFirstInSequence(pit_type par_offset, ParagraphList const & pars)
+bool Text::isFirstInSequence(pit_type par_offset) const
 {
-	Paragraph const & par = pars[par_offset];
+	Paragraph const & par = pars_[par_offset];
 
-	pit_type dhook_offset = depthHook(par_offset, pars, par.getDepth());
+	pit_type dhook_offset = depthHook(par_offset, par.getDepth());
 
 	if (dhook_offset == par_offset)
 		return true;
 
-	Paragraph const & dhook = pars[dhook_offset];
+	Paragraph const & dhook = pars_[dhook_offset];
 
 	return dhook.layout() != par.layout()
 		|| dhook.getDepth() != par.getDepth();
 }
 
 
-int getEndLabel(pit_type p, ParagraphList const & pars)
+int Text::getTocLevel(pit_type par_offset) const
 {
-	pit_type pit = p;
-	depth_type par_depth = pars[p].getDepth();
-	while (pit != pit_type(pars.size())) {
-		Layout const & layout = pars[pit].layout();
-		int const endlabeltype = layout.endlabeltype;
-
-		if (endlabeltype != END_LABEL_NO_LABEL) {
-			if (p + 1 == pit_type(pars.size()))
-				return endlabeltype;
-
-			depth_type const next_depth =
-				pars[p + 1].getDepth();
-			if (par_depth > next_depth ||
-			    (par_depth == next_depth && layout != pars[p + 1].layout()))
-				return endlabeltype;
-			break;
-		}
-		if (par_depth == 0)
-			break;
-		pit = outerHook(pit, pars);
-		if (pit != pit_type(pars.size()))
-			par_depth = pars[pit].getDepth();
-	}
-	return END_LABEL_NO_LABEL;
+	Paragraph const & par = pars_[par_offset];
+
+	if (par.layout().isEnvironment() && !isFirstInSequence(par_offset))
+		return Layout::NOT_IN_TOC;
+
+	return par.layout().toclevel;
 }
 
 
-Font const outerFont(pit_type par_offset, ParagraphList const & pars)
+Font const Text::outerFont(pit_type par_offset) const
 {
-	depth_type par_depth = pars[par_offset].getDepth();
+	depth_type par_depth = pars_[par_offset].getDepth();
 	FontInfo tmpfont = inherit_font;
-
+	depth_type prev_par_depth = 0;
 	// Resolve against environment font information
-	while (par_offset != pit_type(pars.size())
+	while (par_offset != pit_type(pars_.size())
+	       && par_depth != prev_par_depth
 	       && par_depth
 	       && !tmpfont.resolved()) {
-		par_offset = outerHook(par_offset, pars);
-		if (par_offset != pit_type(pars.size())) {
-			tmpfont.realize(pars[par_offset].layout().font);
-			par_depth = pars[par_offset].getDepth();
+		prev_par_depth = par_depth;
+		par_offset = outerHook(par_offset);
+		if (par_offset != pit_type(pars_.size())) {
+			tmpfont.realize(pars_[par_offset].layout().font);
+			par_depth = pars_[par_offset].getDepth();
 		}
 	}
 
@@ -263,48 +297,71 @@ Font const outerFont(pit_type par_offset, ParagraphList const & pars)
 }
 
 
-void acceptChanges(ParagraphList & pars, BufferParams const & bparams)
+static void acceptOrRejectChanges(ParagraphList & pars,
+	BufferParams const & bparams, Text::ChangeOp op)
 {
 	pit_type pars_size = static_cast<pit_type>(pars.size());
 
-	// first, accept changes within each individual paragraph
-	// (do not consider end-of-par)
+	// first, accept or reject changes within each individual
+	// paragraph (do not consider end-of-par)
 	for (pit_type pit = 0; pit < pars_size; ++pit) {
-		if (!pars[pit].empty())   // prevent assertion failure
-			pars[pit].acceptChanges(0, pars[pit].size());
+		// prevent assertion failure
+		if (!pars[pit].empty()) {
+			if (op == Text::ACCEPT)
+				pars[pit].acceptChanges(0, pars[pit].size());
+			else
+				pars[pit].rejectChanges(0, pars[pit].size());
+		}
 	}
 
-	// next, accept imaginary end-of-par characters
+	// next, accept or reject imaginary end-of-par characters
 	for (pit_type pit = 0; pit < pars_size; ++pit) {
 		pos_type pos = pars[pit].size();
-
-		if (pars[pit].isInserted(pos)) {
-			pars[pit].setChange(pos, Change(Change::UNCHANGED));
-		} else if (pars[pit].isDeleted(pos)) {
-			if (pit == pars_size - 1) {
-				// we cannot remove a par break at the end of the last
-				// paragraph; instead, we mark it unchanged
+		if (pars[pit].isChanged(pos)) {
+			// keep the end-of-par char if it is inserted and accepted
+			// or when it is deleted and rejected.
+			if (pars[pit].isInserted(pos) == (op == Text::ACCEPT)) {
 				pars[pit].setChange(pos, Change(Change::UNCHANGED));
 			} else {
-				mergeParagraph(bparams, pars, pit);
-				--pit;
-				--pars_size;
+				if (pit == pars_size - 1) {
+					// we cannot remove a par break at the end of the last
+					// paragraph; instead, we mark it unchanged
+					pars[pit].setChange(pos, Change(Change::UNCHANGED));
+				} else {
+					mergeParagraph(bparams, pars, pit);
+					--pit;
+					--pars_size;
+				}
 			}
 		}
 	}
 }
 
+
+void acceptChanges(ParagraphList & pars, BufferParams const & bparams)
+{
+	acceptOrRejectChanges(pars, bparams, Text::ACCEPT);
+}
+
+
+void rejectChanges(ParagraphList & pars, BufferParams const & bparams)
+{
+	acceptOrRejectChanges(pars, bparams, Text::REJECT);
+}
+
+
 InsetText const & Text::inset() const
 {
 	return *owner_;
 }
 
 
+
 void Text::readParToken(Paragraph & par, Lexer & lex,
 	string const & token, Font & font, Change & change, ErrorList & errorList)
 {
-	Buffer const & buf = owner_->buffer();
-	BufferParams const & bp = buf.params();
+	Buffer * buf = const_cast<Buffer *>(&owner_->buffer());
+	BufferParams const & bp = buf->params();
 
 	if (token[0] != '\\') {
 		docstring dstr = lex.getDocString();
@@ -339,7 +396,13 @@ void Text::readParToken(Paragraph & par, Lexer & lex,
 		// of this document. For example, when you apply class article to a beamer document,
 		// all unknown layouts such as frame will be added to document class article so that
 		// these layouts can keep their original names.
-		tclass.addLayoutIfNeeded(layoutname);
+		bool const added_one = tclass.addLayoutIfNeeded(layoutname);
+		if (added_one) {
+			// Warn the user.
+			docstring const s = bformat(_("Layout `%1$s' was not found."), layoutname);
+			errorList.push_back(
+				ErrorItem(_("Layout Not Found"), s, par.id(), 0, par.size()));
+		}
 
 		par.setLayout(bp.documentClass()[layoutname]);
 
@@ -390,10 +453,10 @@ void Text::readParToken(Paragraph & par, Lexer & lex,
 		}
 	} else if (token == "\\numeric") {
 		lex.next();
-		font.fontInfo().setNumber(font.setLyXMisc(lex.getString()));
+		font.fontInfo().setNumber(setLyXMisc(lex.getString()));
 	} else if (token == "\\emph") {
 		lex.next();
-		font.fontInfo().setEmph(font.setLyXMisc(lex.getString()));
+		font.fontInfo().setEmph(setLyXMisc(lex.getString()));
 	} else if (token == "\\bar") {
 		lex.next();
 		string const tok = lex.getString();
@@ -409,42 +472,46 @@ void Text::readParToken(Paragraph & par, Lexer & lex,
 				       "`$$Token'");
 	} else if (token == "\\strikeout") {
 		lex.next();
-		font.fontInfo().setStrikeout(font.setLyXMisc(lex.getString()));
+		font.fontInfo().setStrikeout(setLyXMisc(lex.getString()));
 	} else if (token == "\\uuline") {
 		lex.next();
-		font.fontInfo().setUuline(font.setLyXMisc(lex.getString()));
+		font.fontInfo().setUuline(setLyXMisc(lex.getString()));
 	} else if (token == "\\uwave") {
 		lex.next();
-		font.fontInfo().setUwave(font.setLyXMisc(lex.getString()));
+		font.fontInfo().setUwave(setLyXMisc(lex.getString()));
 	} else if (token == "\\noun") {
 		lex.next();
-		font.fontInfo().setNoun(font.setLyXMisc(lex.getString()));
+		font.fontInfo().setNoun(setLyXMisc(lex.getString()));
 	} else if (token == "\\color") {
 		lex.next();
 		setLyXColor(lex.getString(), font.fontInfo());
 	} else if (token == "\\SpecialChar") {
-			auto_ptr<Inset> inset;
-			inset.reset(new InsetSpecialChar);
-			inset->read(lex);
-			par.insertInset(par.size(), inset.release(),
-					font, change);
+		auto_ptr<Inset> inset;
+		inset.reset(new InsetSpecialChar);
+		inset->read(lex);
+		inset->setBuffer(*buf);
+		par.insertInset(par.size(), inset.release(), font, change);
+	} else if (token == "\\IPAChar") {
+		auto_ptr<Inset> inset;
+		inset.reset(new InsetIPAChar);
+		inset->read(lex);
+		inset->setBuffer(*buf);
+		par.insertInset(par.size(), inset.release(), font, change);
 	} else if (token == "\\backslash") {
 		par.appendChar('\\', font, change);
 	} else if (token == "\\LyXTable") {
-		auto_ptr<Inset> inset(new InsetTabular(const_cast<Buffer &>(buf)));
+		auto_ptr<Inset> inset(new InsetTabular(buf));
 		inset->read(lex);
 		par.insertInset(par.size(), inset.release(), font, change);
-	} else if (token == "\\lyxline") {
-		par.insertInset(par.size(), new InsetLine, font, change);
 	} else if (token == "\\change_unchanged") {
 		change = Change(Change::UNCHANGED);
 	} else if (token == "\\change_inserted" || token == "\\change_deleted") {
 		lex.eatLine();
 		istringstream is(lex.getString());
-		unsigned int aid;
+		int aid;
 		time_t ct;
 		is >> aid >> ct;
-		map<unsigned int, int> const & am = bp.author_map;
+		BufferParams::AuthorMap const & am = bp.author_map;
 		if (am.find(aid) == am.end()) {
 			errorList.push_back(ErrorItem(_("Change tracking error"),
 					    bformat(_("Unknown author index for change: %1$d\n"), aid),
@@ -504,6 +571,9 @@ void Text::readParagraph(Paragraph & par, Lexer & lex,
 
 	// Initialize begin_of_body_ on load; redoParagraph maintains
 	par.setBeginOfBody();
+	
+	// mark paragraph for spell checking on load
+	// par.requestSpellCheck();
 }
 
 
@@ -511,8 +581,8 @@ class TextCompletionList : public CompletionList
 {
 public:
 	///
-	TextCompletionList(Cursor const & cur)
-		: buffer_(cur.buffer()), pos_(0)
+	TextCompletionList(Cursor const & cur, WordList const * list)
+		: buffer_(cur.buffer()), pos_(0), list_(list)
 	{}
 	///
 	virtual ~TextCompletionList() {}
@@ -522,12 +592,12 @@ public:
 	///
 	virtual size_t size() const
 	{
-		return theWordList().size();
+		return list_->size();
 	}
 	///
 	virtual docstring const & data(size_t idx) const
 	{
-		return theWordList().word(idx);
+		return list_->word(idx);
 	}
 	
 private:
@@ -535,6 +605,8 @@ private:
 	Buffer const * buffer_;
 	///
 	size_t pos_;
+	///
+	WordList const * list_;
 };
 
 
@@ -561,10 +633,11 @@ double Text::spacing(Paragraph const & par) const
  *    keep_layout == false  
  * - keep current depth and layout when keep_layout == true
  */
-static void breakParagraph(BufferParams const & bparams,
-		    ParagraphList & pars, pit_type par_offset, pos_type pos, 
+static void breakParagraph(Text & text, pit_type par_offset, pos_type pos, 
 		    bool keep_layout)
 {
+	BufferParams const & bparams = text.inset().buffer().params();
+	ParagraphList & pars = text.paragraphs();
 	// create a new paragraph, and insert into the list
 	ParagraphList::iterator tmp =
 		pars.insert(boost::next(pars.begin(), par_offset + 1),
@@ -578,13 +651,12 @@ static void breakParagraph(BufferParams const & bparams,
 	// end of a paragraph
 	tmp->setPlainOrDefaultLayout(bparams.documentClass());
 
-	// layout stays the same with latex-environments
 	if (keep_layout) {
 		tmp->setLayout(par.layout());
 		tmp->setLabelWidthString(par.params().labelWidthString());
 		tmp->params().depth(par.params().depth());
 	} else if (par.params().depth() > 0) {
-		Paragraph const & hook = pars[outerHook(par_offset, pars)];
+		Paragraph const & hook = pars[text.outerHook(par_offset)];
 		tmp->setLayout(hook.layout());
 		// not sure the line below is useful
 		tmp->setLabelWidthString(par.params().labelWidthString());
@@ -644,7 +716,6 @@ static void breakParagraph(BufferParams const & bparams,
 		par.setPlainOrDefaultLayout(bparams.documentClass());
 	}
 
-	// layout stays the same with latex-environments
 	if (keep_layout) {
 		par.setLayout(tmp->layout());
 		par.setLabelWidthString(tmp->params().labelWidthString());
@@ -663,14 +734,15 @@ void Text::breakParagraph(Cursor & cur, bool inverse_logic)
 	DocumentClass const & tclass = cur.buffer()->params().documentClass();
 	Layout const & layout = cpar.layout();
 
-	// this is only allowed, if the current paragraph is not empty
-	// or caption and if it has not the keepempty flag active
-	if (cur.lastpos() == 0 && !cpar.allowEmpty() &&
-	    layout.labeltype != LABEL_SENSITIVE)
+	if (cur.lastpos() == 0 && !cpar.allowEmpty()) {
+		if (changeDepthAllowed(cur, DEC_DEPTH))
+			changeDepth(cur, DEC_DEPTH);
+		else 
+			setLayout(cur, tclass.defaultLayoutName());
 		return;
+	}
 
-	// a layout change may affect also the following paragraph
-	recUndo(cur, cur.pit(), undoSpan(cur.pit()) - 1);
+	cur.recordUndo();
 
 	// Always break behind a space
 	// It is better to erase the space (Dekel)
@@ -678,9 +750,10 @@ void Text::breakParagraph(Cursor & cur, bool inverse_logic)
 		cpar.eraseChar(cur.pos(), cur.buffer()->params().trackChanges);
 
 	// What should the layout for the new paragraph be?
-	bool keep_layout = inverse_logic ? 
-		!layout.isEnvironment() 
-		: layout.isEnvironment();
+	bool keep_layout = layout.isEnvironment() 
+		|| (layout.isParagraph() && layout.parbreak_is_newline);
+	if (inverse_logic)
+		keep_layout = !keep_layout;
 
 	// We need to remember this before we break the paragraph, because
 	// that invalidates the layout variable
@@ -689,8 +762,7 @@ void Text::breakParagraph(Cursor & cur, bool inverse_logic)
 	// we need to set this before we insert the paragraph.
 	bool const isempty = cpar.allowEmpty() && cpar.empty();
 
-	lyx::breakParagraph(cur.buffer()->params(), paragraphs(), cpit,
-			 cur.pos(), keep_layout);
+	lyx::breakParagraph(*this, cpit, cur.pos(), keep_layout);
 
 	// After this, neither paragraph contains any rows!
 
@@ -714,10 +786,9 @@ void Text::breakParagraph(Cursor & cur, bool inverse_logic)
 			break; // the character couldn't be deleted physically due to change tracking
 	}
 
-	cur.buffer()->updateLabels();
-
 	// A singlePar update is not enough in this case.
-	cur.updateFlags(Update::Force);
+	cur.screenUpdateFlags(Update::Force);
+	cur.forceBufferUpdate();
 
 	// This check is necessary. Otherwise the new empty paragraph will
 	// be deleted automatically. And it is more friendly for the user!
@@ -729,12 +800,12 @@ void Text::breakParagraph(Cursor & cur, bool inverse_logic)
 
 
 // needed to insert the selection
-void Text::insertStringAsLines(DocIterator const & dit, docstring const & str,
+void Text::insertStringAsLines(Cursor & cur, docstring const & str,
 		Font const & font)
 {
 	BufferParams const & bparams = owner_->buffer().params();
-	pit_type pit = dit.pit();
-	pos_type pos = dit.pos();
+	pit_type pit = cur.pit();
+	pos_type pos = cur.pos();
 
 	// insert the string, don't insert doublespace
 	bool space_inserted = true;
@@ -743,8 +814,8 @@ void Text::insertStringAsLines(DocIterator const & dit, docstring const & str,
 		Paragraph & par = pars_[pit];
 		if (*cit == '\n') {
 			if (autoBreakRows_ && (!par.empty() || par.allowEmpty())) {
-				lyx::breakParagraph(bparams, pars_, pit, pos,
-					       par.layout().isEnvironment());
+				lyx::breakParagraph(*this, pit, pos,
+					par.layout().isEnvironment());
 				++pit;
 				pos = 0;
 				space_inserted = true;
@@ -776,12 +847,13 @@ void Text::insertStringAsLines(DocIterator const & dit, docstring const & str,
 			space_inserted = (*cit == ' ');
 		}
 	}
+	setCursor(cur, pit, pos);
 }
 
 
 // turn double CR to single CR, others are converted into one
 // blank. Then insertStringAsLines is called
-void Text::insertStringAsParagraphs(DocIterator const & dit, docstring const & str,
+void Text::insertStringAsParagraphs(Cursor & cur, docstring const & str,
 		Font const & font)
 {
 	docstring linestr = str;
@@ -803,7 +875,7 @@ void Text::insertStringAsParagraphs(DocIterator const & dit, docstring const & s
 			newline_inserted = false;
 		}
 	}
-	insertStringAsLines(dit, linestr, font);
+	insertStringAsLines(cur, linestr, font);
 }
 
 
@@ -830,7 +902,7 @@ void Text::insertChar(Cursor & cur, char_type c)
 		static docstring const number_seperators = from_ascii(".,:");
 
 		if (cur.current_font.fontInfo().number() == FONT_ON) {
-			if (!isDigit(c) && !contains(number_operators, c) &&
+			if (!isDigitASCII(c) && !contains(number_operators, c) &&
 			    !(contains(number_seperators, c) &&
 			      cur.pos() != 0 &&
 			      cur.pos() != cur.lastpos() &&
@@ -838,7 +910,7 @@ void Text::insertChar(Cursor & cur, char_type c)
 			      tm.displayFont(pit, cur.pos() - 1).fontInfo().number() == FONT_ON)
 			   )
 				number(cur); // Set current_font.number to OFF
-		} else if (isDigit(c) &&
+		} else if (isDigitASCII(c) &&
 			   cur.real_current_font.isVisibleRightToLeft()) {
 			number(cur); // Set current_font.number to ON
 
@@ -915,23 +987,17 @@ void Text::insertChar(Cursor & cur, char_type c)
 	// disable the double-space checking
 	if (!freeSpacing && isLineSeparatorChar(c)) {
 		if (cur.pos() == 0) {
-			static bool sent_space_message = false;
-			if (!sent_space_message) {
-				cur.message(_("You cannot insert a space at the "
-							   "beginning of a paragraph. Please read the Tutorial."));
-				sent_space_message = true;
-			}
+			cur.message(_(
+					"You cannot insert a space at the "
+					"beginning of a paragraph. Please read the Tutorial."));
 			return;
 		}
 		LASSERT(cur.pos() > 0, /**/);
 		if ((par.isLineSeparator(cur.pos() - 1) || par.isNewline(cur.pos() - 1))
-		    && !par.isDeleted(cur.pos() - 1)) {
-			static bool sent_space_message = false;
-			if (!sent_space_message) {
-				cur.message(_("You cannot type two spaces this way. "
-							   "Please read the Tutorial."));
-				sent_space_message = true;
-			}
+				&& !par.isDeleted(cur.pos() - 1)) {
+			cur.message(_(
+					"You cannot type two spaces this way. "
+					"Please read the Tutorial."));
 			return;
 		}
 	}
@@ -940,8 +1006,9 @@ void Text::insertChar(Cursor & cur, char_type c)
 		cur.buffer()->params().trackChanges);
 	cur.checkBufferStructure();
 
-//		cur.updateFlags(Update::Force);
-	bool boundary = tm.isRTLBoundary(cur.pit(), cur.pos() + 1);
+//		cur.screenUpdateFlags(Update::Force);
+	bool boundary = cur.boundary()
+		|| tm.isRTLBoundary(cur.pit(), cur.pos() + 1);
 	setCursor(cur, cur.pit(), cur.pos() + 1, false, boundary);
 	charInserted(cur);
 }
@@ -953,12 +1020,11 @@ void Text::charInserted(Cursor & cur)
 
 	// Here we call finishUndo for every 20 characters inserted.
 	// This is from my experience how emacs does it. (Lgb)
-	static unsigned int counter;
-	if (counter < 20) {
-		++counter;
+	if (undo_counter_ < 20) {
+		++undo_counter_;
 	} else {
 		cur.finishUndo();
-		counter = 0;
+		undo_counter_ = 0;
 	}
 
 	// register word if a non-letter was entered
@@ -1149,9 +1215,11 @@ void Text::selectWord(Cursor & cur, word_location loc)
 		setCursor(cur, from.pit(), from.pos());
 	if (to == from)
 		return;
-	cur.resetAnchor();
+	if (!cur.selection())
+		cur.resetAnchor();
 	setCursor(cur, to.pit(), to.pos());
 	cur.setSelection();
+	cur.setWordSelection(true);
 }
 
 
@@ -1227,7 +1295,11 @@ void Text::acceptOrRejectChanges(Cursor & cur, ChangeOp op)
 
 		pos_type left  = (pit == begPit ? begPos : 0);
 		pos_type right = (pit == endPit ? endPos : parSize);
-
+		
+		if (left == right)
+			// there is no change here
+			continue;
+		
 		if (op == ACCEPT) {
 			pars_[pit].acceptChanges(left, right);
 		} else {
@@ -1288,8 +1360,8 @@ void Text::acceptOrRejectChanges(Cursor & cur, ChangeOp op)
 	cur.finishUndo();
 	cur.clearSelection();
 	setCursorIntern(cur, begPit, begPos);
-	cur.updateFlags(Update::Force);
-	cur.buffer()->updateLabels();
+	cur.screenUpdateFlags(Update::Force);
+	cur.forceBufferUpdate();
 }
 
 
@@ -1440,9 +1512,9 @@ bool Text::handleBibitems(Cursor & cur)
 		cur.recordUndo(ATOMIC_UNDO, prevcur.pit());
 		mergeParagraph(bufparams, cur.text()->paragraphs(),
 							prevcur.pit());
-		cur.buffer()->updateLabels();
+		cur.forceBufferUpdate();
 		setCursorIntern(cur, prevcur.pit(), prevcur.pos());
-		cur.updateFlags(Update::Force);
+		cur.screenUpdateFlags(Update::Force);
 		return true;
 	} 
 
@@ -1468,7 +1540,7 @@ bool Text::erase(Cursor & cur)
 			cur.top().forwardPos();
 
 		if (was_inset)
-			cur.buffer()->updateLabels();
+			cur.forceBufferUpdate();
 		else
 			cur.checkBufferStructure();
 		needsUpdate = true;
@@ -1544,7 +1616,7 @@ bool Text::backspacePos0(Cursor & cur)
 	}
 
 	if (needsUpdate) {
-		cur.buffer()->updateLabels();
+		cur.forceBufferUpdate();
 		setCursorIntern(cur, prevcur.pit(), prevcur.pos());
 	}
 
@@ -1584,7 +1656,7 @@ bool Text::backspace(Cursor & cur)
 		bool const was_inset = cur.paragraph().isInset(cur.pos());
 		cur.paragraph().eraseChar(cur.pos(), cur.buffer()->params().trackChanges);
 		if (was_inset)
-			cur.buffer()->updateLabels();
+			cur.forceBufferUpdate();
 		else
 			cur.checkBufferStructure();
 	}
@@ -1595,7 +1667,7 @@ bool Text::backspace(Cursor & cur)
 	needsUpdate |= handleBibitems(cur);
 
 	// A singlePar update is not enough in this case.
-//		cur.updateFlags(Update::Force);
+//		cur.screenUpdateFlags(Update::Force);
 	setCursor(cur.top(), cur.pit(), cur.pos());
 
 	return needsUpdate;
@@ -1625,13 +1697,23 @@ bool Text::dissolveInset(Cursor & cur)
 	spit += cur.pit();
 	Buffer & b = *cur.buffer();
 	cur.paragraph().eraseChar(cur.pos(), b.params().trackChanges);
+
 	if (!plist.empty()) {
+		// see bug 7319
+		// we clear the cache so that we won't get conflicts with labels
+		// that get pasted into the buffer. we should update this before
+		// its being empty matters. if not (i.e., if we encounter bugs),
+		// then this should instead be:
+		//	  cur.buffer().updateBuffer();
+		// but we'll try the cheaper solution here.
+		cur.buffer()->clearReferenceCache();
+
 		// ERT paragraphs have the Language latex_language.
 		// This is invalid outside of ERT, so we need to
 		// change it to the buffer language.
 		ParagraphList::iterator it = plist.begin();
 		ParagraphList::iterator it_end = plist.end();
-		for (; it != it_end; it++)
+		for (; it != it_end; ++it)
 			it->changeLanguage(b.params(), latex_language, b.language());
 
 		pasteParagraphList(cur, plist, b.params().documentClassPtr(),
@@ -1639,10 +1721,12 @@ bool Text::dissolveInset(Cursor & cur)
 		// restore position
 		cur.pit() = min(cur.lastpit(), spit);
 		cur.pos() = min(cur.lastpos(), spos);
-	} else
-		// this is the least that needs to be done (bug 6003)
-		// in the above case, pasteParagraphList handles this
-		cur.buffer()->updateLabels();
+	}
+
+	cur.forceBufferUpdate();
+
+	// Ensure the current language is set correctly (bug 6292)
+	cur.text()->setCursor(cur, cur.pit(), cur.pos());
 	cur.clearSelection();
 	cur.resetAnchor();
 	return true;
@@ -1711,8 +1795,6 @@ bool Text::read(Lexer & lex,
 			readParagraph(pars_.back(), lex, errorList);
 
 			// register the words in the global word list
-			CursorSlice sl = CursorSlice(*insetPtr);
-			sl.pit() = pars_.size() - 1;
 			pars_.back().updateWords();
 		} else if (token == "\\begin_deeper") {
 			++depth;
@@ -1740,6 +1822,7 @@ bool Text::read(Lexer & lex,
 	return res;
 }
 
+
 // Returns the current font and depth as a message.
 docstring Text::currentState(Cursor const & cur) const
 {
@@ -1828,10 +1911,11 @@ docstring Text::getPossibleLabel(Cursor const & cur) const
 
 	docstring text;
 	docstring par_text = pars_[pit].asString();
-	string piece;
-	// the return string of math matrices might contain linebreaks
+
+	// The return string of math matrices might contain linebreaks
 	par_text = subst(par_text, '\n', '-');
-	for (int i = 0; i < lyxrc.label_init_length; ++i) {
+	int const numwords = 3;
+	for (int i = 0; i < numwords; ++i) {
 		if (par_text.empty())
 			break;
 		docstring head;
@@ -1841,12 +1925,13 @@ docstring Text::getPossibleLabel(Cursor const & cur) const
 			text += '-';
 		text += head;
 	}
+	
+	// Make sure it isn't too long
+	unsigned int const max_label_length = 32;
+	if (text.size() > max_label_length)
+		text.resize(max_label_length);
 
-	// No need for a prefix if the user said so.
-	if (lyxrc.label_init_length <= 0)
-		return text;
-
-	// Will contain the label type.
+	// Will contain the label prefix.
 	docstring name;
 
 	// For section, subsection, etc...
@@ -1858,42 +1943,39 @@ docstring Text::getPossibleLabel(Cursor const & cur) const
 		}
 	}
 	if (layout->latextype != LATEX_PARAGRAPH)
-		name = from_ascii(layout->latexname());
+		name = layout->refprefix;
 
-	// for captions, we just take the caption type
+	// For captions, we just take the caption type
 	Inset * caption_inset = cur.innerInsetOfType(CAPTION_CODE);
-	if (caption_inset)
-		name = from_ascii(static_cast<InsetCaption *>(caption_inset)->type());
-
-	// If none of the above worked, we'll see if we're inside various
-	// types of insets and take our abbreviation from them.
-	if (name.empty()) {
-		InsetCode const codes[] = {
-			FLOAT_CODE,
-			WRAP_CODE,
-			FOOT_CODE
-		};
-		for (unsigned int i = 0; i < (sizeof codes / sizeof codes[0]); ++i) {
-			Inset * float_inset = cur.innerInsetOfType(codes[i]);
-			if (float_inset) {
-				name = float_inset->name();
-				break;
-			}
+	if (caption_inset) {
+		string const & ftype = static_cast<InsetCaption *>(caption_inset)->floattype();
+		FloatList const & fl = cur.buffer()->params().documentClass().floats();
+		if (fl.typeExist(ftype)) {
+			Floating const & flt = fl.getType(ftype);
+			name = from_utf8(flt.refPrefix());
 		}
+		if (name.empty())
+			name = from_utf8(ftype.substr(0,3));
 	}
 
-	// Create a correct prefix for prettyref
-	if (name == "theorem")
-		name = from_ascii("thm");
-	else if (name == "Foot")
-		name = from_ascii("fn");
-	else if (name == "listing")
-		name = from_ascii("lst");
+	// If none of the above worked, see if the inset knows.
+	if (name.empty()) {
+		InsetLayout const & il = cur.inset().getLayout();
+		name = il.refprefix();
+	}
 
 	if (!name.empty())
-		text = name.substr(0, 3) + ':' + text;
+		text = name + ':' + text;
+
+	// We need a unique label
+	docstring label = text;
+	int i = 1;
+	while (cur.buffer()->insetLabel(label)) {
+			label = text + '-' + convert<docstring>(i);
+			++i;
+		}
 
-	return text;
+	return label;
 }
 
 
@@ -1915,6 +1997,18 @@ docstring Text::asString(pit_type beg, pit_type end, int options) const
 }
 
 
+void Text::forToc(docstring & os, size_t maxlen, bool shorten) const
+{
+	if (maxlen == 0)
+		maxlen = std::numeric_limits<std::size_t>::max();
+	else
+		LASSERT(maxlen >= 8, maxlen = TOC_ENTRY_LENGTH);
+	for (size_t i = 0; i != pars_.size() && os.length() < maxlen; ++i)
+		pars_[i].forToc(os, maxlen);
+	if (shorten && os.length() >= maxlen)
+		os = os.substr(0, maxlen - 3) + from_ascii("...");
+}
+
 
 void Text::charsTranspose(Cursor & cur)
 {
@@ -2011,7 +2105,8 @@ bool Text::completionSupported(Cursor const & cur) const
 
 CompletionList const * Text::createCompletionList(Cursor const & cur) const
 {
-	return new TextCompletionList(cur);
+	WordList const * list = theWordList(*cur.getFont().language());
+	return new TextCompletionList(cur, list);
 }
 
 
@@ -2020,8 +2115,8 @@ bool Text::insertCompletion(Cursor & cur, docstring const & s, bool /*finished*/
 	LASSERT(cur.bv().cursor() == cur, /**/);
 	cur.insert(s);
 	cur.bv().cursor() = cur;
-	if (!(cur.disp_.update() & Update::Force))
-		cur.updateFlags(cur.disp_.update() | Update::SinglePar);
+	if (!(cur.result().screenUpdate() & Update::Force))
+		cur.screenUpdateFlags(cur.result().screenUpdate() | Update::SinglePar);
 	return true;
 }