X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FText3.cpp;h=eafce2854c2efdb308b9550a4a382a8a58439702;hb=7d4292918e6bf66649229e2946e6ac0a30694494;hp=3d73e1ef66eccbbfbfdca83dce4ec233502ea728;hpb=760b7cf2b659380c03ff43860df077204b5e6cd1;p=lyx.git

diff --git a/src/Text3.cpp b/src/Text3.cpp
index 3d73e1ef66..eafce2854c 100644
--- a/src/Text3.cpp
+++ b/src/Text3.cpp
@@ -17,7 +17,6 @@
 
 #include "Text.h"
 
-#include "Bidi.h"
 #include "BranchList.h"
 #include "FloatList.h"
 #include "FuncStatus.h"
@@ -45,6 +44,7 @@
 #include "SpellChecker.h"
 #include "TextClass.h"
 #include "TextMetrics.h"
+#include "Thesaurus.h"
 #include "WordLangTuple.h"
 
 #include "frontends/alert.h"
@@ -72,6 +72,7 @@
 #include "support/gettext.h"
 #include "support/lassert.h"
 #include "support/lstrings.h"
+#include "support/lyxalgo.h"
 #include "support/lyxtime.h"
 #include "support/os.h"
 #include "support/regex.h"
@@ -79,8 +80,6 @@
 #include "mathed/InsetMathHull.h"
 #include "mathed/MathMacroTemplate.h"
 
-#include <boost/next_prior.hpp>
-
 #include <clocale>
 #include <sstream>
 
@@ -98,6 +97,7 @@ using cap::replaceSelection;
 using cap::grabAndEraseSelection;
 using cap::selClearOrDel;
 using cap::pasteSimpleText;
+using frontend::Clipboard;
 
 // globals...
 static Font freefont(ignore_font, ignore_language);
@@ -133,7 +133,7 @@ static void finishChange(Cursor & cur, bool selecting)
 }
 
 
-static void mathDispatch(Cursor & cur, FuncRequest const & cmd, bool display)
+static void mathDispatch(Cursor & cur, FuncRequest const & cmd)
 {
 	cur.recordUndo();
 	docstring sel = cur.selectionAsString(false);
@@ -153,45 +153,39 @@ static void mathDispatch(Cursor & cur, FuncRequest const & cmd, bool display)
 		LATTEST(old_pos == cur.pos());
 #endif
 		cur.nextInset()->edit(cur, true);
-		// don't do that also for LFUN_MATH_MODE
-		// unless you want end up with always changing
-		// to mathrm when opening an inlined inset --
-		// I really hate "LyXfunc overloading"...
-		if (display)
-			cur.dispatch(FuncRequest(LFUN_MATH_DISPLAY));
-		// Avoid an unnecessary undo step if cmd.argument
-		// is empty
-		if (!cmd.argument().empty())
-			cur.dispatch(FuncRequest(LFUN_MATH_INSERT,
-						 cmd.argument()));
+		if (cmd.action() != LFUN_MATH_MODE)
+			// LFUN_MATH_MODE has a different meaning in math mode
+			cur.dispatch(cmd);
 	} else {
-		// create a macro if we see "\\newcommand"
-		// somewhere, and an ordinary formula
-		// otherwise
-		if (sel.find(from_ascii("\\newcommand")) == string::npos
-				&& sel.find(from_ascii("\\newlyxcommand")) == string::npos
-				&& sel.find(from_ascii("\\def")) == string::npos)
-		{
-			InsetMathHull * formula = new InsetMathHull(cur.buffer());
-			string const selstr = to_utf8(sel);
-			istringstream is(selstr);
-			Lexer lex;
+		InsetMathHull * formula = new InsetMathHull(cur.buffer());
+		string const selstr = to_utf8(sel);
+		istringstream is(selstr);
+		Lexer lex;
+		lex.setStream(is);
+		if (!formula->readQuiet(lex)) {
+			// No valid formula, let's try with delims
+			is.str("$" + selstr + "$");
 			lex.setStream(is);
 			if (!formula->readQuiet(lex)) {
-				// No valid formula, let's try with delims
-				is.str("$" + selstr + "$");
-				lex.setStream(is);
-				if (!formula->readQuiet(lex)) {
-					// Still not valid, leave it as is
-					valid = false;
-					delete formula;
-					cur.insert(sel);
-				} else
-					cur.insert(formula);
-			} else
-				cur.insert(formula);
-		} else {
-			cur.insert(new MathMacroTemplate(cur.buffer(), sel));
+				// Still not valid, leave it as is
+				valid = false;
+				delete formula;
+				cur.insert(sel);
+			}
+		}
+		if (valid) {
+			cur.insert(formula);
+			cur.nextInset()->edit(cur, true);
+			LASSERT(cur.inMathed(), return);
+			cur.pos() = 0;
+			cur.resetAnchor();
+			cur.selection(true);
+			cur.pos() = cur.lastpos();
+			if (cmd.action() != LFUN_MATH_MODE)
+				// LFUN_MATH_MODE has a different meaning in math mode
+				cur.dispatch(cmd);
+			cur.clearSelection();
+			cur.pos() = cur.lastpos();
 		}
 	}
 	if (valid)
@@ -274,6 +268,13 @@ static bool doInsertInset(Cursor & cur, Text * text,
 		Layout::LaTeXArgMap::const_iterator const lait = args.find(ia->name());
 		if (lait != args.end())
 			cotextinsert = (*lait).second.insertcotext;
+		else {
+			InsetLayout const & il = cur.inset().getLayout();
+			args = il.args();
+			Layout::LaTeXArgMap::const_iterator const ilait = args.find(ia->name());
+			if (ilait != args.end())
+				cotextinsert = (*ilait).second.insertcotext;
+		}
 		// The argument requests to insert a copy of the co-text to the inset
 		if (cotextinsert) {
 			docstring ds;
@@ -370,7 +371,7 @@ static void outline(OutlineOp mode, Cursor & cur)
 	ParagraphList & pars = buf.text().paragraphs();
 	ParagraphList::iterator const bgn = pars.begin();
 	// The first paragraph of the area to be copied:
-	ParagraphList::iterator start = boost::next(bgn, pit);
+	ParagraphList::iterator start = lyx::next(bgn, pit);
 	// The final paragraph of area to be copied:
 	ParagraphList::iterator finish = start;
 	ParagraphList::iterator const end = pars.end();
@@ -421,7 +422,7 @@ static void outline(OutlineOp mode, Cursor & cur)
 				// Nothing to move.
 				return;
 			// Go one down from *this* header:
-			ParagraphList::iterator dest = boost::next(finish, 1);
+			ParagraphList::iterator dest = next(finish, 1);
 			// Go further down to find header to insert in front of:
 			for (; dest != end; ++dest) {
 				toclevel = buf.text().getTocLevel(distance(bgn, dest));
@@ -481,6 +482,15 @@ bool Text::isRTL(Paragraph const & par) const
 	return par.isRTL(buffer.params());
 }
 
+	
+namespace {
+		
+	Language const * getLanguage(Cursor const & cur, string const & lang) {
+		return lang.empty() ? cur.getFont().language() : languages.getLanguage(lang);
+	}
+
+}
+
 
 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 {
@@ -704,7 +714,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 				cmd = FuncRequest(LFUN_FINISHED_LEFT);
 			}
 		} else {
-			if (reverseDirectionNeeded(cur)) {
+			if (cur.reverseDirectionNeeded()) {
 				cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 					LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 			} else {
@@ -728,7 +738,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 				cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 			}
 		} else {
-			if (reverseDirectionNeeded(cur)) {
+			if (cur.reverseDirectionNeeded()) {
 				cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 					LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 			} else {
@@ -799,7 +809,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 		ParagraphList & pars = buf.text().paragraphs();
 		ParagraphList::iterator bgn = pars.begin();
 		// The first paragraph of the area to be selected:
-		ParagraphList::iterator start = boost::next(bgn, pit);
+		ParagraphList::iterator start = lyx::next(bgn, pit);
 		// The final paragraph of area to be selected:
 		ParagraphList::iterator finish = start;
 		ParagraphList::iterator end = pars.end();
@@ -840,7 +850,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 				cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 			}
 		} else {
-			if (reverseDirectionNeeded(cur)) {
+			if (cur.reverseDirectionNeeded()) {
 				cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 						LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
 			} else {
@@ -892,7 +902,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 				cmd = FuncRequest(LFUN_FINISHED_LEFT);
 			}
 		} else {
-			if (reverseDirectionNeeded(cur)) {
+			if (cur.reverseDirectionNeeded()) {
 				cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
 						LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
 			} else {
@@ -1039,22 +1049,11 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 
 	case LFUN_CHAR_DELETE_FORWARD:
 		if (!cur.selection()) {
-			bool was_separator = cur.paragraph().isEnvSeparator(cur.pos());
 			if (cur.pos() == cur.paragraph().size())
 				// Par boundary, force full-screen update
 				singleParUpdate = false;
 			needsUpdate |= erase(cur);
 			cur.resetAnchor();
-			if (was_separator && cur.pos() == cur.paragraph().size()
-			    && (!cur.paragraph().layout().isEnvironment()
-				|| cur.paragraph().size() > 0)) {
-				// Force full-screen update
-				singleParUpdate = false;
-				needsUpdate |= erase(cur);
-				cur.resetAnchor();
-			}
-			// It is possible to make it a lot faster still
-			// just comment out the line below...
 		} else {
 			cutSelection(cur, true, false);
 			singleParUpdate = false;
@@ -1066,18 +1065,17 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 		if (!cur.selection()) {
 			if (bv->getIntl().getTransManager().backspace()) {
 				bool par_boundary = cur.pos() == 0;
+				bool first_par = cur.pit() == 0;
 				// Par boundary, full-screen update
 				if (par_boundary)
 					singleParUpdate = false;
 				needsUpdate |= backspace(cur);
 				cur.resetAnchor();
-				if (par_boundary && cur.pos() > 0
+				if (par_boundary && !first_par && cur.pos() > 0
 				    && cur.paragraph().isEnvSeparator(cur.pos() - 1)) {
 					needsUpdate |= backspace(cur);
 					cur.resetAnchor();
 				}
-				// It is possible to make it a lot faster still
-				// just comment out the line below...
 			}
 		} else {
 			cutSelection(cur, true, false);
@@ -1089,6 +1087,8 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 		cap::replaceSelection(cur);
 		pit_type pit = cur.pit();
 		Paragraph const & par = pars_[pit];
+		bool lastpar = (pit == pit_type(pars_.size() - 1));
+		Paragraph const & nextpar = lastpar ? par : pars_[pit + 1];
 		pit_type prev = pit;
 		if (pit > 0) {
 			if (!pars_[pit - 1].layout().isEnvironment())
@@ -1097,28 +1097,43 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 				prev = pit - 1;
 		}
 		if (prev < pit && cur.pos() == par.beginOfBody()
-		    && !par.isEnvSeparator(cur.pos())
+		    && !par.size() && !par.isEnvSeparator(cur.pos())
 		    && !par.layout().isCommand()
 		    && pars_[prev].layout() != par.layout()
-		    && pars_[prev].layout().isEnvironment()) {
+		    && pars_[prev].layout().isEnvironment()
+		    && !nextpar.isEnvSeparator(nextpar.beginOfBody())) {
 			if (par.layout().isEnvironment()
 			    && pars_[prev].getDepth() == par.getDepth()) {
 				docstring const layout = par.layout().name();
 				DocumentClass const & tc = bv->buffer().params().documentClass();
 				lyx::dispatch(FuncRequest(LFUN_LAYOUT, tc.plainLayout().name()));
-				lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "parbreak"));
+				lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
 				lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
 				lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
 			} else {
-				lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "parbreak"));
+				lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
 				breakParagraph(cur);
 			}
 			Font const f(inherit_font, cur.current_font.language());
 			pars_[cur.pit() - 1].resetFonts(f);
 		} else {
+			if (par.isEnvSeparator(cur.pos()))
+				cur.posForward();
 			breakParagraph(cur, cmd.argument() == "inverse");
 		}
 		cur.resetAnchor();
+		// If we have a list and autoinsert item insets,
+		// insert them now.
+		Layout::LaTeXArgMap args = par.layout().args();
+		Layout::LaTeXArgMap::const_iterator lait = args.begin();
+		Layout::LaTeXArgMap::const_iterator const laend = args.end();
+		for (; lait != laend; ++lait) {
+			Layout::latexarg arg = (*lait).second;
+			if (arg.autoinsert && prefixIs((*lait).first, "item:")) {
+				FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
+				lyx::dispatch(cmd);
+			}
+		}
 		break;
 	}
 
@@ -1275,15 +1290,15 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 	}
 
 	case LFUN_WORD_UPCASE:
-		changeCase(cur, text_uppercase);
+		changeCase(cur, text_uppercase, cmd.getArg(0) == "partial");
 		break;
 
 	case LFUN_WORD_LOWCASE:
-		changeCase(cur, text_lowercase);
+		changeCase(cur, text_lowercase, cmd.getArg(0) == "partial");
 		break;
 
 	case LFUN_WORD_CAPITALIZE:
-		changeCase(cur, text_capitalization);
+		changeCase(cur, text_capitalization, cmd.getArg(0) == "partial");
 		break;
 
 	case LFUN_CHARS_TRANSPOSE:
@@ -1340,7 +1355,6 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 		bv->buffer().errors("Paste");
 		cur.clearSelection(); // bug 393
 		cur.finishUndo();
-		bv->buffer().updatePreviews();
 		break;
 	}
 
@@ -1593,8 +1607,10 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 		bvcur.setMark(false);
 		switch (cmd.button()) {
 		case mouse_button::button1:
-			// Set the cursor
-			if (!bv->mouseSetCursor(cur, cmd.argument() == "region-select"))
+			if (!bvcur.selection())
+				// Set the cursor
+				bvcur.resetAnchor();
+			if (!bv->mouseSetCursor(cur, cmd.modifier() == ShiftModifier))
 				cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
 			if (bvcur.wordSelection())
 				selectWord(bvcur, WHOLE_WORD);
@@ -1620,7 +1636,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 				return;
 			}
 			if (!bv->mouseSetCursor(cur, false))
-				cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
+				cur.screenUpdateFlags(Update::FitCursor);
 			break;
 		}
 
@@ -1648,6 +1664,9 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 
 		tm->setCursorFromCoordinates(cur, cmd.x(), y);
 		cur.setTargetX(cmd.x());
+		// Don't allow selecting a separator inset
+		if (cur.pos() && cur.paragraph().isEnvSeparator(cur.pos() - 1))
+			cur.posBackward();
 		if (cmd.y() >= wh)
 			lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
 		else if (cmd.y() < 0)
@@ -1662,7 +1681,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 		// We continue with our existing selection or start a new one, so don't
 		// reset the anchor.
 		bvcur.setCursor(cur);
-		bvcur.setSelection(true);
+		bvcur.selection(true);
 		if (cur.top() == old) {
 			// We didn't move one iota, so no need to update the screen.
 			cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
@@ -1990,22 +2009,38 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 		changeDepth(cur, INC_DEPTH);
 		break;
 
-	case LFUN_MATH_DISPLAY:
-		mathDispatch(cur, cmd, true);
-		break;
-
 	case LFUN_REGEXP_MODE:
 		regexpDispatch(cur, cmd);
 		break;
 
-	case LFUN_MATH_MODE:
-		if (cmd.argument() == "on")
+	case LFUN_MATH_MODE: {
+		if (cmd.argument() == "on" || cmd.argument() == "") {
 			// don't pass "on" as argument
 			// (it would appear literally in the first cell)
-			mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
-		else
-			mathDispatch(cur, cmd, false);
+			docstring sel = cur.selectionAsString(false);
+			MathMacroTemplate * macro = new MathMacroTemplate(cur.buffer());
+			// create a macro template if we see "\\newcommand" somewhere, and
+			// an ordinary formula otherwise
+			if (!sel.empty()
+				&& (sel.find(from_ascii("\\newcommand")) != string::npos
+					|| sel.find(from_ascii("\\newlyxcommand")) != string::npos
+					|| sel.find(from_ascii("\\def")) != string::npos)
+				&& macro->fromString(sel)) {
+				cur.recordUndo();
+				replaceSelection(cur);
+				cur.insert(macro);
+			} else {
+				// no meaningful macro template was found
+				delete macro;
+				mathDispatch(cur,FuncRequest(LFUN_MATH_MODE));
+			}
+		} else
+			// The argument is meaningful
+			// We replace cmd with LFUN_MATH_INSERT because LFUN_MATH_MODE
+			// has a different meaning in math mode
+			mathDispatch(cur, FuncRequest(LFUN_MATH_INSERT,cmd.argument()));
 		break;
+	}
 
 	case LFUN_MATH_MACRO:
 		if (cmd.argument().empty())
@@ -2028,32 +2063,21 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 			cur.push(*inset);
 			cur.top().pos() = cur.top().lastpos();
 			cur.resetAnchor();
-			cur.setSelection(true);
+			cur.selection(true);
 			cur.top().pos() = 0;
 		}
 		break;
 
-	// passthrough hat and underscore outside mathed:
+	case LFUN_MATH_DISPLAY:
 	case LFUN_MATH_SUBSCRIPT:
-		mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
-		break;
 	case LFUN_MATH_SUPERSCRIPT:
-		mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
-		break;
-
 	case LFUN_MATH_INSERT:
 	case LFUN_MATH_AMS_MATRIX:
 	case LFUN_MATH_MATRIX:
 	case LFUN_MATH_DELIM:
-	case LFUN_MATH_BIGDELIM: {
-		cur.recordUndo();
-		cap::replaceSelection(cur);
-		cur.insert(new InsetMathHull(cur.buffer(), hullSimple));
-		checkAndActivateInset(cur, true);
-		LASSERT(cur.inMathed(), break);
-		cur.dispatch(cmd);
+	case LFUN_MATH_BIGDELIM:
+		mathDispatch(cur, cmd);
 		break;
-	}
 
 	case LFUN_FONT_EMPH: {
 		Font font(ignore_font, ignore_language);
@@ -2208,6 +2232,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 
 	case LFUN_FINISHED_BACKWARD:
 		LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
+		cur.setCurrentFont();
 		break;
 
 	case LFUN_FINISHED_FORWARD:
@@ -2242,6 +2267,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 	case LFUN_ACCENT_GRAVE:
 	case LFUN_ACCENT_ACUTE:
 	case LFUN_ACCENT_TILDE:
+	case LFUN_ACCENT_PERISPOMENI:
 	case LFUN_ACCENT_CEDILLA:
 	case LFUN_ACCENT_MACRON:
 	case LFUN_ACCENT_DOT:
@@ -2305,6 +2331,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 	}
 
 	case LFUN_THESAURUS_ENTRY: {
+		Language const * language = cur.getFont().language();
 		docstring arg = cmd.argument();
 		if (arg.empty()) {
 			arg = cur.selectionAsString(false);
@@ -2313,10 +2340,20 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 				// Get word or selection
 				selectWordWhenUnderCursor(cur, WHOLE_WORD);
 				arg = cur.selectionAsString(false);
-				arg += " lang=" + from_ascii(cur.getFont().language()->lang());
+				arg += " lang=" + from_ascii(language->lang());
+			}
+		} else {
+			string lang = cmd.getArg(1);
+			// This duplicates the code in GuiThesaurus::initialiseParams
+			if (prefixIs(lang, "lang=")) {
+				language = languages.getLanguage(lang.substr(5));
+				if (!language)
+					language = cur.getFont().language();
 			}
 		}
-		if (lyxrc.thesaurusdir_path.empty()) {
+		string lang = language->code();
+		if (lyxrc.thesaurusdir_path.empty() && !thesaurus.thesaurusInstalled(from_ascii(lang))) {
+			LYXERR(Debug::ACTION, "Command " << cmd << ". Thesaurus not found for language " << lang);
 			frontend::Alert::warning(_("Path to thesaurus directory not set!"),
 					_("The path to the thesaurus directory has not been specified.\n"
 					  "The thesaurus is not functional.\n"
@@ -2328,8 +2365,8 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 	}
 
 	case LFUN_SPELLING_ADD: {
+		Language const * language = getLanguage(cur, cmd.getArg(1));
 		docstring word = from_utf8(cmd.getArg(0));
-		Language * lang;
 		if (word.empty()) {
 			word = cur.selectionAsString(false);
 			// FIXME
@@ -2338,22 +2375,15 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 				selectWordWhenUnderCursor(cur, WHOLE_WORD);
 				word = cur.selectionAsString(false);
 			}
-			lang = const_cast<Language *>(cur.getFont().language());
-		} else if (cmd.getArg(1).empty()) {
-			// optional language argument is missing
-			// use the language at cursor position
-			lang = const_cast<Language *>(cur.getFont().language());
-		} else {
-			lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
 		}
-		WordLangTuple wl(word, lang);
+		WordLangTuple wl(word, language);
 		theSpellChecker()->insert(wl);
 		break;
 	}
 
 	case LFUN_SPELLING_IGNORE: {
+		Language const * language = getLanguage(cur, cmd.getArg(1));
 		docstring word = from_utf8(cmd.getArg(0));
-		Language * lang;
 		if (word.empty()) {
 			word = cur.selectionAsString(false);
 			// FIXME
@@ -2362,20 +2392,15 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 				selectWordWhenUnderCursor(cur, WHOLE_WORD);
 				word = cur.selectionAsString(false);
 			}
-			lang = const_cast<Language *>(cur.getFont().language());
-		} else if (cmd.getArg(1).empty()) {
-			lang = const_cast<Language *>(cur.getFont().language());
-		} else {
-			lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
 		}
-		WordLangTuple wl(word, lang);
+		WordLangTuple wl(word, language);
 		theSpellChecker()->accept(wl);
 		break;
 	}
 
 	case LFUN_SPELLING_REMOVE: {
+		Language const * language = getLanguage(cur, cmd.getArg(1));
 		docstring word = from_utf8(cmd.getArg(0));
-		Language * lang;
 		if (word.empty()) {
 			word = cur.selectionAsString(false);
 			// FIXME
@@ -2384,13 +2409,8 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 				selectWordWhenUnderCursor(cur, WHOLE_WORD);
 				word = cur.selectionAsString(false);
 			}
-			lang = const_cast<Language *>(cur.getFont().language());
-		} else if (cmd.getArg(1).empty()) {
-			lang = const_cast<Language *>(cur.getFont().language());
-		} else {
-			lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
 		}
-		WordLangTuple wl(word, lang);
+		WordLangTuple wl(word, language);
 		theSpellChecker()->remove(wl);
 		break;
 	}
@@ -2419,7 +2439,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 
 	case LFUN_ESCAPE:
 		if (cur.selection()) {
-			cur.setSelection(false);
+			cur.selection(false);
 		} else {
 			cur.undispatched();
 			// This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
@@ -2704,7 +2724,7 @@ bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
 	case LFUN_CAPTION_INSERT: {
 		code = CAPTION_CODE;
 		string arg = cmd.getArg(0);
-		bool varia = arg != "LongTableNoNumber"
+		bool varia = arg != "Unnumbered"
 			&& cur.inset().allowsCaptionVariation(arg);
 		// not allowed in description items,
 		// and in specific insets
@@ -2959,25 +2979,30 @@ bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
 			break;
 		}
 
-		// explicit graphics type?
 		Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
-		if ((arg == "pdf" && (type = Clipboard::PdfGraphicsType))
-			  || (arg == "png" && (type = Clipboard::PngGraphicsType))
-			  || (arg == "jpeg" && (type = Clipboard::JpegGraphicsType))
-			  || (arg == "linkback" &&  (type = Clipboard::LinkBackGraphicsType))
-			  || (arg == "emf" &&  (type = Clipboard::EmfGraphicsType))
-			  || (arg == "wmf" &&  (type = Clipboard::WmfGraphicsType))) {
-			enable = theClipboard().hasGraphicsContents(type);
+		if (arg == "pdf")
+			type = Clipboard::PdfGraphicsType;
+		else if (arg == "png")
+			type = Clipboard::PngGraphicsType;
+		else if (arg == "jpeg")
+			type = Clipboard::JpegGraphicsType;
+		else if (arg == "linkback")
+			type = Clipboard::LinkBackGraphicsType;
+		else if (arg == "emf")
+			type = Clipboard::EmfGraphicsType;
+		else if (arg == "wmf")
+			type = Clipboard::WmfGraphicsType;
+		else {
+			// unknown argument
+			LYXERR0("Unrecognized graphics type: " << arg);
+			// we don't want to assert if the user just mistyped the LFUN
+			LATTEST(cmd.origin() != FuncRequest::INTERNAL);
+			enable = false;
 			break;
 		}
-
-		// unknown argument
-		LYXERR0("Unrecognized graphics type: " << arg);
-		// we don't want to assert if the user just mistyped the LFUN
-		LATTEST(cmd.origin() != FuncRequest::INTERNAL);
-		enable = false;
+		enable = theClipboard().hasGraphicsContents(type);
 		break;
-	 }
+	}
 
 	case LFUN_CLIPBOARD_PASTE:
 	case LFUN_CLIPBOARD_PASTE_SIMPLE:
@@ -3083,13 +3108,12 @@ bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
 		break;
 
 	case LFUN_LAYOUT: {
-		enable = !cur.inset().forcePlainLayout();
-
+		DocumentClass const & tclass = cur.buffer()->params().documentClass();
 		docstring layout = cmd.argument();
-		if (layout.empty()) {
-			DocumentClass const & tclass = cur.buffer()->params().documentClass();
+		if (layout.empty())
 			layout = tclass.defaultLayoutName();
-		}
+		enable = !owner_->forcePlainLayout() && tclass.hasLayout(layout);
+
 		flag.setOnOff(layout == cur.paragraph().layout().name());
 		break;
 	}
@@ -3124,10 +3148,13 @@ bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
 	case LFUN_PARAGRAPH_PARAMS:
 	case LFUN_PARAGRAPH_PARAMS_APPLY:
 	case LFUN_PARAGRAPH_UPDATE:
-		enable = cur.inset().allowParagraphCustomization();
+		enable = owner_->allowParagraphCustomization();
 		break;
 
 	// FIXME: why are accent lfuns forbidden with pass_thru layouts?
+	//  Because they insert COMBINING DIACRITICAL Unicode characters,
+	//  that cannot be handled by LaTeX but must be converted according
+	//  to the definition in lib/unicodesymbols?
 	case LFUN_ACCENT_ACUTE:
 	case LFUN_ACCENT_BREVE:
 	case LFUN_ACCENT_CARON:
@@ -3141,6 +3168,7 @@ bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
 	case LFUN_ACCENT_OGONEK:
 	case LFUN_ACCENT_TIE:
 	case LFUN_ACCENT_TILDE:
+	case LFUN_ACCENT_PERISPOMENI:
 	case LFUN_ACCENT_UMLAUT:
 	case LFUN_ACCENT_UNDERBAR:
 	case LFUN_ACCENT_UNDERDOT: