]> git.lyx.org Git - lyx.git/blobdiff - src/Text.cpp
Add AllowedInInsets and AllowedInLayouts InsetLayout tags
[lyx.git] / src / Text.cpp
index d1e0d9abd0769cb8ef3543f9da24a83c62e2c1e1..9dff2b37ab837f6fd5a3e0a67380237f97792a08 100644 (file)
@@ -3,15 +3,18 @@
  * This file is part of LyX, the document processor.
  * Licence details can be found in the file COPYING.
  *
+ * \author Alfredo Braunstein
+ * \author Allan Rae
+ * \author André Pönitz
+ * \author Angus Leeming
  * \author Asger Alstrup
- * \author Lars Gullik Bjønnes
+ * \author Dekel Tsur
  * \author Dov Feldstern
  * \author Jean-Marc Lasgouttes
  * \author John Levon
- * \author André Pönitz
- * \author Stefan Schimanski
- * \author Dekel Tsur
  * \author Jürgen Vigna
+ * \author Lars Gullik Bjønnes
+ * \author Stefan Schimanski
  *
  * Full author contact details are available in file CREDITS.
  */
@@ -21,6 +24,7 @@
 #include "Text.h"
 
 #include "Author.h"
+#include "BranchList.h"
 #include "Buffer.h"
 #include "BufferParams.h"
 #include "BufferView.h"
 #include "Cursor.h"
 #include "CursorSlice.h"
 #include "CutAndPaste.h"
+#include "DispatchResult.h"
 #include "Encoding.h"
 #include "ErrorList.h"
 #include "factory.h"
+#include "FloatList.h"
 #include "Font.h"
+#include "FuncRequest.h"
+#include "FuncStatus.h"
+#include "InsetList.h"
+#include "Intl.h"
 #include "Language.h"
 #include "Layout.h"
 #include "Lexer.h"
+#include "LyX.h"
+#include "LyXAction.h"
 #include "lyxfind.h"
 #include "LyXRC.h"
 #include "Paragraph.h"
 #include "ParagraphParameters.h"
+#include "SpellChecker.h"
 #include "TextClass.h"
 #include "TextMetrics.h"
+#include "Thesaurus.h"
+#include "WordLangTuple.h"
 #include "WordList.h"
 
+#include "frontends/alert.h"
+#include "frontends/Application.h"
+#include "frontends/Clipboard.h"
+#include "frontends/Selection.h"
+
+#include "mathed/InsetMathHull.h"
+#include "mathed/InsetMathMacroTemplate.h"
+
 #include "insets/Inset.h"
-#include "insets/InsetText.h"
+#include "insets/InsetArgument.h"
 #include "insets/InsetCaption.h"
+#include "insets/InsetCollapsible.h"
+#include "insets/InsetCommand.h"
+#include "insets/InsetExternal.h"
+#include "insets/InsetFloat.h"
+#include "insets/InsetFloatList.h"
+#include "insets/InsetGraphics.h"
+#include "insets/InsetGraphicsParams.h"
+#include "insets/InsetIndexMacro.h"
+#include "insets/InsetInfo.h"
 #include "insets/InsetIPAMacro.h"
+#include "insets/InsetNewline.h"
+#include "insets/InsetQuotes.h"
 #include "insets/InsetSpecialChar.h"
 #include "insets/InsetTabular.h"
+#include "insets/InsetText.h"
+#include "insets/InsetWrap.h"
 
 #include "support/convert.h"
 #include "support/debug.h"
 #include "support/docstream.h"
 #include "support/docstring.h"
+#include "support/docstring_list.h"
+#include "support/filetools.h"
 #include "support/gettext.h"
 #include "support/lassert.h"
+#include "support/limited_stack.h"
 #include "support/lstrings.h"
 #include "support/lyxtime.h"
 #include "support/textutils.h"
 #include "support/unique_ptr.h"
 
+#include <clocale>
+#include <regex>
 #include <sstream>
 
-
 using namespace std;
-using namespace lyx::support;
 
 namespace lyx {
+using namespace support;
+using namespace cap;
+using frontend::Clipboard;
+
 
-using cap::cutSelection;
-using cap::pasteParagraphList;
+namespace {
 
-static bool moveItem(Paragraph & fromPar, pos_type fromPos,
+bool moveItem(Paragraph & fromPar, pos_type fromPos,
        Paragraph & toPar, pos_type toPos, BufferParams const & params)
 {
        // Note: moveItem() does not honour change tracking!
@@ -100,6 +142,9 @@ static bool moveItem(Paragraph & fromPar, pos_type fromPos,
 }
 
 
+} //namespace
+
+
 void breakParagraphConservative(BufferParams const & bparams,
        ParagraphList & pars, pit_type pit, pos_type pos)
 {
@@ -208,7 +253,7 @@ pit_type Text::outerHook(pit_type par_offset) const
 
        if (par.getDepth() == 0)
                return pars_.size();
-       return depthHook(par_offset, depth_type(par.getDepth() - 1));
+       return depthHook(par_offset, par.getDepth() - 1);
 }
 
 
@@ -368,7 +413,7 @@ InsetText const & Text::inset() const
 void Text::readParToken(Paragraph & par, Lexer & lex,
        string const & token, Font & font, Change & change, ErrorList & errorList)
 {
-       Buffer * buf = const_cast<Buffer *>(&owner_->buffer());
+       Buffer * buf = &owner_->buffer();
        BufferParams & bp = buf->params();
 
        if (token[0] != '\\') {
@@ -671,9 +716,8 @@ double Text::spacing(Paragraph const & par) const
 /**
  * This breaks a paragraph at the specified position.
  * The new paragraph will:
- * - Decrease depth by one (or change layout to default layout) when
- *    keep_layout == false
- * - keep current depth and layout when keep_layout == true
+ * - change layout to default layout when keep_layout == false
+ * - keep layout when keep_layout == true
  */
 static void breakParagraph(Text & text, pit_type par_offset, pos_type pos,
                    bool keep_layout)
@@ -688,21 +732,13 @@ static void breakParagraph(Text & text, pit_type par_offset, pos_type pos,
 
        // remember to set the inset_owner
        tmp->setInsetOwner(&par.inInset());
-       // without doing that we get a crash when typing <Return> at the
-       // end of a paragraph
-       tmp->setPlainOrDefaultLayout(bparams.documentClass());
+       tmp->params().depth(par.params().depth());
 
        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[text.outerHook(par_offset)];
-               tmp->setLayout(hook.layout());
-               // not sure the line below is useful
-               tmp->setLabelWidthString(par.params().labelWidthString());
-               tmp->params().depth(hook.params().depth());
-       }
+       } else
+               tmp->setPlainOrDefaultLayout(bparams.documentClass());
 
        bool const isempty = (par.allowEmpty() && par.empty());
 
@@ -858,11 +894,12 @@ void Text::insertStringAsLines(Cursor & cur, docstring const & str,
        pos_type pos = cur.pos();
 
        // The special chars we handle
-       map<wchar_t, InsetSpecialChar::Kind> specialchars;
-       specialchars[0x200c] = InsetSpecialChar::LIGATURE_BREAK;
-       specialchars[0x200b] = InsetSpecialChar::ALLOWBREAK;
-       specialchars[0x2026] = InsetSpecialChar::LDOTS;
-       specialchars[0x2011] = InsetSpecialChar::NOBREAKDASH;
+       static map<wchar_t, InsetSpecialChar::Kind> specialchars = {
+               { 0x200c, InsetSpecialChar::LIGATURE_BREAK },
+               { 0x200b, InsetSpecialChar::ALLOWBREAK },
+               { 0x2026, InsetSpecialChar::LDOTS },
+               { 0x2011, InsetSpecialChar::NOBREAKDASH }
+       };
 
        // insert the string, don't insert doublespace
        bool space_inserted = true;
@@ -893,11 +930,11 @@ void Text::insertStringAsLines(Cursor & cur, docstring const & str,
                                ++pos;
                                space_inserted = true;
                        }
-               } else if (specialchars.find(ch) != specialchars.end()) {
-                       par.insertInset(pos, new InsetSpecialChar(specialchars.find(ch)->second),
-                                       font, bparams.track_changes ?
-                                               Change(Change::INSERTED)
-                                             : Change(Change::UNCHANGED));
+               } else if (specialchars.find(ch) != specialchars.end()
+                          && (par.insertInset(pos, new InsetSpecialChar(specialchars.find(ch)->second),
+                                              font, bparams.track_changes
+                                              ? Change(Change::INSERTED)
+                                              : Change(Change::UNCHANGED)))) {
                        ++pos;
                        space_inserted = false;
                } else if (!isPrintable(ch)) {
@@ -1367,6 +1404,20 @@ void Text::selectWord(Cursor & cur, word_location loc)
 }
 
 
+void Text::expandWordSel(Cursor & cur)
+{
+       // get selection of word around cur
+       Cursor c = cur;
+       c.selection(false);
+       c.text()->selectWord(c, WHOLE_WORD);
+       // use the correct word boundary, depending on selection direction
+       if (cur.top() > cur.normalAnchor())
+               cur.pos() = c.selEnd().pos();
+       else
+               cur.pos() = c.selBegin().pos();
+}
+
+
 void Text::selectAll(Cursor & cur)
 {
        LBUFERR(this == cur.text());
@@ -1494,7 +1545,8 @@ void Text::acceptOrRejectChanges(Cursor & cur, ChangeOp op)
        }
 
        // finally, invoke the DEPM
-       deleteEmptyParagraphMechanism(begPit, endPit, cur.buffer()->params().track_changes);
+       deleteEmptyParagraphMechanism(begPit, endPit, begPos, endPos,
+                                     cur.buffer()->params().track_changes);
 
        cur.finishUndo();
        cur.clearSelection();
@@ -1868,11 +1920,18 @@ bool Text::dissolveInset(Cursor & cur)
                 */
                DocumentClass const & tclass = cur.buffer()->params().documentClass();
                if (inset_it.lastpos() == 1
-                       && !tclass.isPlainLayout(plist[0].layout())
-                       && !tclass.isDefaultLayout(plist[0].layout()))
-                       cur.paragraph().makeSameLayout(plist[0]);
+                   && !tclass.isPlainLayout(plist[0].layout())
+                   && !tclass.isDefaultLayout(plist[0].layout())) {
+                       // Copy all parameters except depth.
+                       Paragraph & par = cur.paragraph();
+                       par.setLayout(plist[0].layout());
+                       depth_type const dpth = par.getDepth();
+                       par.params() = plist[0].params();
+                       par.params().depth(dpth);
+               }
 
                pasteParagraphList(cur, plist, b.params().documentClassPtr(),
+                                  b.params().authors(),
                                   b.errorList("Paste"));
        }
 
@@ -1892,6 +1951,93 @@ bool Text::dissolveInset(Cursor & cur)
 }
 
 
+bool Text::splitInset(Cursor & cur)
+{
+       LASSERT(this == cur.text(), return false);
+
+       if (isMainText() || cur.inset().nargs() != 1)
+               return false;
+
+       cur.recordUndo();
+       if (cur.selection()) {
+               // start from selection begin
+               setCursor(cur, cur.selBegin().pit(), cur.selBegin().pos());
+               cur.clearSelection();
+       }
+       // save split position inside inset
+       // (we need to copy the whole inset first)
+       pos_type spos = cur.pos();
+       pit_type spit = cur.pit();
+       // some things only need to be done if the inset has content
+       bool const inset_non_empty = cur.lastpit() != 0 || cur.lastpos() != 0;
+
+       // move right before the inset
+       cur.popBackward();
+       cur.resetAnchor();
+       // remember position outside inset
+       pos_type ipos = cur.pos();
+       pit_type ipit = cur.pit();
+       // select inset ...
+       ++cur.pos();
+       cur.setSelection();
+       // ... and copy
+       cap::copySelectionToTemp(cur);
+       cur.clearSelection();
+       cur.resetAnchor();
+       // paste copied inset
+       cap::pasteFromTemp(cur, cur.buffer()->errorList("Paste"));
+       cur.forceBufferUpdate();
+
+       // if the inset has text, cut after split position
+       // and paste to new inset
+       if (inset_non_empty) {
+               // go back to first inset
+               cur.text()->setCursor(cur, ipit, ipos);
+               cur.forwardPos();
+               setCursor(cur, spit, spos);
+               cur.resetAnchor();
+               setCursor(cur, cur.lastpit(), getPar(cur.lastpit()).size());
+               cur.setSelection();
+               // Remember whether there was something cut that has to be pasted below
+               // (bug #12747)
+               bool const hasCut = cur.selection();
+               cap::cutSelectionToTemp(cur);
+               cur.setMark(false);
+               cur.selHandle(false);
+               cur.resetAnchor();
+               bool atlastpos = false;
+               if (cur.pos() == 0 && cur.pit() > 0) {
+                       // if we are at par start, remove this par
+                       cur.text()->backspace(cur);
+                       cur.forceBufferUpdate();
+               } else if (cur.pos() == cur.lastpos())
+                       atlastpos = true;
+               // Move out of and jump over inset
+               cur.popBackward();
+               ++cur.pos();
+
+               // enter new inset
+               cur.forwardPos();
+               cur.setCursor(cur);
+               cur.resetAnchor();
+               cur.text()->selectAll(cur);
+               cutSelection(cur, false);
+               // If there was something cut paste it
+               if (hasCut)
+                       cap::pasteFromTemp(cur, cur.buffer()->errorList("Paste"));
+               cur.text()->setCursor(cur, 0, 0);
+               if (atlastpos && cur.paragraph().isFreeSpacing() && cur.paragraph().empty()) {
+                       // We started from par end, remove extra empty par in free spacing insets
+                       cur.text()->erase(cur);
+                       cur.forceBufferUpdate();
+               }
+       }
+
+       cur.finishUndo();
+       return true;
+}
+
+
 void Text::getWord(CursorSlice & from, CursorSlice & to,
        word_location const loc) const
 {
@@ -2057,7 +2203,10 @@ docstring Text::currentState(CursorData const & cur, bool devel_mode) const
                if (!par.empty() && cur.pos() < par.size()) {
                        // Force output of code point, not character
                        size_t const c = par.getChar(cur.pos());
-                       os << _(", Char: 0x") << hex << c;
+                       if (c == META_INSET)
+                               os << ", Char: INSET";
+                       else
+                               os << _(", Char: 0x") << hex << c;
                }
                os << _(", Boundary: ") << cur.boundary();
 //             Row & row = cur.textRow();
@@ -2272,7 +2421,8 @@ void Text::setMacrocontextPosition(DocIterator const & pos)
 bool Text::completionSupported(Cursor const & cur) const
 {
        Paragraph const & par = cur.paragraph();
-       return !cur.selection()
+       return !cur.buffer()->isReadonly()
+               && !cur.selection()
                && cur.pos() > 0
                && (cur.pos() >= par.size() || par.isWordSeparator(cur.pos()))
                && !par.isWordSeparator(cur.pos() - 1);
@@ -2286,9 +2436,12 @@ CompletionList const * Text::createCompletionList(Cursor const & cur) const
 }
 
 
-bool Text::insertCompletion(Cursor & cur, docstring const & s, bool /*finished*/)
+bool Text::insertCompletion(Cursor & cur, docstring const & s)
 {
        LBUFERR(cur.bv().cursor() == cur);
+       if (cur.buffer()->isReadonly())
+               return false;
+       cur.recordUndo();
        cur.insert(s);
        cur.bv().cursor() = cur;
        if (!(cur.result().screenUpdate() & Update::Force))
@@ -2306,4 +2459,4743 @@ docstring Text::completionPrefix(Cursor const & cur) const
        return cur.paragraph().asString(from.pos(), to.pos());
 }
 
+bool Text::isMainText() const
+{
+       return &owner_->buffer().text() == this;
+}
+
+
+// Note that this is supposed to return a fully realized font.
+FontInfo Text::layoutFont(pit_type const pit) const
+{
+       Layout const & layout = pars_[pit].layout();
+
+       if (!pars_[pit].getDepth())  {
+               FontInfo lf = layout.resfont;
+               // In case the default family has been customized
+               if (layout.font.family() == INHERIT_FAMILY)
+                       lf.setFamily(owner_->buffer().params().getFont().fontInfo().family());
+               FontInfo icf = (!isMainText())
+                                 // inside insets, we call the getFont() method
+                               ? owner_->getFont()
+                                 // outside, we access the layout font directly
+                               : owner_->getLayout().font();
+               icf.realize(lf);
+               return icf;
+       }
+
+       FontInfo font = layout.font;
+       // Realize with the fonts of lesser depth.
+       //font.realize(outerFont(pit));
+       font.realize(owner_->buffer().params().getFont().fontInfo());
+
+       return font;
+}
+
+
+// Note that this is supposed to return a fully realized font.
+FontInfo Text::labelFont(Paragraph const & par) const
+{
+       Buffer const & buffer = owner_->buffer();
+       Layout const & layout = par.layout();
+
+       if (!par.getDepth()) {
+               FontInfo lf = layout.reslabelfont;
+               // In case the default family has been customized
+               if (layout.labelfont.family() == INHERIT_FAMILY)
+                       lf.setFamily(buffer.params().getFont().fontInfo().family());
+               return lf;
+       }
+
+       FontInfo font = layout.labelfont;
+       // Realize with the fonts of lesser depth.
+       font.realize(buffer.params().getFont().fontInfo());
+
+       return font;
+}
+
+
+void Text::setCharFont(pit_type pit,
+               pos_type pos, Font const & fnt, Font const & display_font)
+{
+       Buffer const & buffer = owner_->buffer();
+       Font font = fnt;
+       Layout const & layout = pars_[pit].layout();
+
+       // Get concrete layout font to reduce against
+       FontInfo layoutfont;
+
+       if (pos < pars_[pit].beginOfBody())
+               layoutfont = layout.labelfont;
+       else
+               layoutfont = layout.font;
+
+       // Realize against environment font information
+       if (pars_[pit].getDepth()) {
+               pit_type tp = pit;
+               while (!layoutfont.resolved() &&
+                      tp != pit_type(paragraphs().size()) &&
+                      pars_[tp].getDepth()) {
+                       tp = outerHook(tp);
+                       if (tp != pit_type(paragraphs().size()))
+                               layoutfont.realize(pars_[tp].layout().font);
+               }
+       }
+
+       // Inside inset, apply the inset's font attributes if any
+       // (charstyle!)
+       if (!isMainText())
+               layoutfont.realize(display_font.fontInfo());
+
+       layoutfont.realize(buffer.params().getFont().fontInfo());
+
+       // Now, reduce font against full layout font
+       font.fontInfo().reduce(layoutfont);
+
+       pars_[pit].setFont(pos, font);
+}
+
+
+void Text::setInsetFont(BufferView const & bv, pit_type pit,
+               pos_type pos, Font const & font)
+{
+       Inset * const inset = pars_[pit].getInset(pos);
+       LASSERT(inset && inset->resetFontEdit(), return);
+
+       idx_type endidx = inset->nargs();
+       for (CursorSlice cs(*inset); cs.idx() != endidx; ++cs.idx()) {
+               Text * text = cs.text();
+               if (text) {
+                       // last position of the cell
+                       CursorSlice cellend = cs;
+                       cellend.pit() = cellend.lastpit();
+                       cellend.pos() = cellend.lastpos();
+                       text->setFont(bv, cs, cellend, font);
+               }
+       }
+}
+
+
+void Text::setLayout(pit_type start, pit_type end,
+                    docstring const & layout)
+{
+       // FIXME: make this work in multicell selection case
+       LASSERT(start != end, return);
+
+       Buffer const & buffer = owner_->buffer();
+       BufferParams const & bp = buffer.params();
+       Layout const & lyxlayout = bp.documentClass()[layout];
+
+       for (pit_type pit = start; pit != end; ++pit) {
+               Paragraph & par = pars_[pit];
+               // Is this a separating paragraph? If so,
+               // this needs to be standard layout
+               bool const is_separator = par.size() == 1
+                               && par.isEnvSeparator(0);
+               par.applyLayout(is_separator ? bp.documentClass().defaultLayout() : lyxlayout);
+               if (lyxlayout.margintype == MARGIN_MANUAL)
+                       par.setLabelWidthString(par.expandLabel(lyxlayout, bp));
+       }
+
+       deleteEmptyParagraphMechanism(start, end - 1, bp.track_changes);
+}
+
+
+// set layout over selection and make a total rebreak of those paragraphs
+void Text::setLayout(Cursor & cur, docstring const & layout)
+{
+       LBUFERR(this == cur.text());
+
+       pit_type start = cur.selBegin().pit();
+       pit_type end = cur.selEnd().pit() + 1;
+       cur.recordUndoSelection();
+       setLayout(start, end, layout);
+       cur.fixIfBroken();
+       cur.setCurrentFont();
+       cur.forceBufferUpdate();
+}
+
+
+static bool changeDepthAllowed(Text::DEPTH_CHANGE type,
+                       Paragraph const & par, int max_depth)
+{
+       int const depth = par.params().depth();
+       if (type == Text::INC_DEPTH && depth < max_depth)
+               return true;
+       if (type == Text::DEC_DEPTH && depth > 0)
+               return true;
+       return false;
+}
+
+
+bool Text::changeDepthAllowed(Cursor const & cur, DEPTH_CHANGE type) const
+{
+       LBUFERR(this == cur.text());
+       // this happens when selecting several cells in tabular (bug 2630)
+       if (cur.selBegin().idx() != cur.selEnd().idx())
+               return false;
+
+       pit_type const beg = cur.selBegin().pit();
+       pit_type const end = cur.selEnd().pit() + 1;
+       int max_depth = (beg != 0 ? pars_[beg - 1].getMaxDepthAfter() : 0);
+
+       for (pit_type pit = beg; pit != end; ++pit) {
+               if (lyx::changeDepthAllowed(type, pars_[pit], max_depth))
+                       return true;
+               max_depth = pars_[pit].getMaxDepthAfter();
+       }
+       return false;
+}
+
+
+void Text::changeDepth(Cursor const & cur, DEPTH_CHANGE type)
+{
+       LBUFERR(this == cur.text());
+       pit_type const beg = cur.selBegin().pit();
+       pit_type const end = cur.selEnd().pit() + 1;
+       cur.recordUndoSelection();
+       int max_depth = (beg != 0 ? pars_[beg - 1].getMaxDepthAfter() : 0);
+
+       for (pit_type pit = beg; pit != end; ++pit) {
+               Paragraph & par = pars_[pit];
+               if (lyx::changeDepthAllowed(type, par, max_depth)) {
+                       int const depth = par.params().depth();
+                       if (type == INC_DEPTH)
+                               par.params().depth(depth + 1);
+                       else
+                               par.params().depth(depth - 1);
+               }
+               max_depth = par.getMaxDepthAfter();
+       }
+       // this handles the counter labels, and also fixes up
+       // depth values for follow-on (child) paragraphs
+       cur.forceBufferUpdate();
+}
+
+
+void Text::setFont(Cursor & cur, Font const & font, bool toggleall)
+{
+       LASSERT(this == cur.text(), return);
+
+       // If there is a selection, record undo before the cursor font is changed.
+       if (cur.selection())
+               cur.recordUndoSelection();
+
+       // Set the current_font
+       // Determine basis font
+       FontInfo layoutfont;
+       pit_type pit = cur.pit();
+       if (cur.pos() < pars_[pit].beginOfBody())
+               layoutfont = labelFont(pars_[pit]);
+       else
+               layoutfont = layoutFont(pit);
+
+       // Update current font
+       cur.real_current_font.update(font,
+                                       cur.buffer()->params().language,
+                                       toggleall);
+
+       // Reduce to implicit settings
+       cur.current_font = cur.real_current_font;
+       cur.current_font.fontInfo().reduce(layoutfont);
+       // And resolve it completely
+       cur.real_current_font.fontInfo().realize(layoutfont);
+
+       // if there is no selection that's all we need to do
+       if (!cur.selection())
+               return;
+
+       // Ok, we have a selection.
+       Font newfont = font;
+
+       if (toggleall) {
+               // Toggling behaves as follows: We check the first character of the
+               // selection. If it's (say) got EMPH on, then we set to off; if off,
+               // then to on. With families and the like, we set it to INHERIT, if
+               // we already have it.
+               CursorSlice const & sl = cur.selBegin();
+               Text const & text = *sl.text();
+               Paragraph const & par = text.getPar(sl.pit());
+
+               // get font at the position
+               Font oldfont = par.getFont(cur.bv().buffer().params(), sl.pos(),
+                       text.outerFont(sl.pit()));
+               FontInfo const & oldfi = oldfont.fontInfo();
+
+               FontInfo & newfi = newfont.fontInfo();
+
+               FontFamily newfam = newfi.family();
+               if (newfam !=   INHERIT_FAMILY && newfam != IGNORE_FAMILY &&
+                               newfam == oldfi.family())
+                       newfi.setFamily(INHERIT_FAMILY);
+
+               FontSeries newser = newfi.series();
+               if (newser == BOLD_SERIES && oldfi.series() == BOLD_SERIES)
+                       newfi.setSeries(INHERIT_SERIES);
+
+               FontShape newshp = newfi.shape();
+               if (newshp != INHERIT_SHAPE && newshp != IGNORE_SHAPE &&
+                               newshp == oldfi.shape())
+                       newfi.setShape(INHERIT_SHAPE);
+
+               ColorCode newcol = newfi.color();
+               if (newcol != Color_none && newcol != Color_inherit
+                   && newcol != Color_ignore && newcol == oldfi.color())
+                       newfi.setColor(Color_none);
+
+               // ON/OFF ones
+               if (newfi.emph() == FONT_TOGGLE)
+                       newfi.setEmph(oldfi.emph() == FONT_OFF ? FONT_ON : FONT_OFF);
+               if (newfi.underbar() == FONT_TOGGLE)
+                       newfi.setUnderbar(oldfi.underbar() == FONT_OFF ? FONT_ON : FONT_OFF);
+               if (newfi.strikeout() == FONT_TOGGLE)
+                       newfi.setStrikeout(oldfi.strikeout() == FONT_OFF ? FONT_ON : FONT_OFF);
+               if (newfi.xout() == FONT_TOGGLE)
+                       newfi.setXout(oldfi.xout() == FONT_OFF ? FONT_ON : FONT_OFF);
+               if (newfi.uuline() == FONT_TOGGLE)
+                       newfi.setUuline(oldfi.uuline() == FONT_OFF ? FONT_ON : FONT_OFF);
+               if (newfi.uwave() == FONT_TOGGLE)
+                       newfi.setUwave(oldfi.uwave() == FONT_OFF ? FONT_ON : FONT_OFF);
+               if (newfi.noun() == FONT_TOGGLE)
+                       newfi.setNoun(oldfi.noun() == FONT_OFF ? FONT_ON : FONT_OFF);
+               if (newfi.number() == FONT_TOGGLE)
+                       newfi.setNumber(oldfi.number() == FONT_OFF ? FONT_ON : FONT_OFF);
+               if (newfi.nospellcheck() == FONT_TOGGLE)
+                       newfi.setNoSpellcheck(oldfi.nospellcheck() == FONT_OFF ? FONT_ON : FONT_OFF);
+       }
+
+       setFont(cur.bv(), cur.selectionBegin().top(),
+               cur.selectionEnd().top(), newfont);
+}
+
+
+void Text::setFont(BufferView const & bv, CursorSlice const & begin,
+               CursorSlice const & end, Font const & font)
+{
+       Buffer const & buffer = bv.buffer();
+
+       // Don't use forwardChar here as ditend might have
+       // pos() == lastpos() and forwardChar would miss it.
+       // Can't use forwardPos either as this descends into
+       // nested insets.
+       Language const * language = buffer.params().language;
+       for (CursorSlice dit = begin; dit != end; dit.forwardPos()) {
+               if (dit.pos() == dit.lastpos())
+                       continue;
+               pit_type const pit = dit.pit();
+               pos_type const pos = dit.pos();
+               Inset * inset = pars_[pit].getInset(pos);
+               if (inset && inset->resetFontEdit()) {
+                       // We need to propagate the font change to all
+                       // text cells of the inset (bugs 1973, 6919).
+                       setInsetFont(bv, pit, pos, font);
+               }
+               TextMetrics const & tm = bv.textMetrics(this);
+               Font f = tm.displayFont(pit, pos);
+               f.update(font, language);
+               setCharFont(pit, pos, f, tm.font_);
+               // font change may change language...
+               // spell checker has to know that
+               pars_[pit].requestSpellCheck(pos);
+       }
+}
+
+
+bool Text::cursorTop(Cursor & cur)
+{
+       LBUFERR(this == cur.text());
+       return setCursor(cur, 0, 0);
+}
+
+
+bool Text::cursorBottom(Cursor & cur)
+{
+       LBUFERR(this == cur.text());
+       return setCursor(cur, cur.lastpit(), prev(paragraphs().end(), 1)->size());
+}
+
+
+void Text::toggleFree(Cursor & cur, Font const & font, bool toggleall)
+{
+       LBUFERR(this == cur.text());
+       // If the mask is completely neutral, tell user
+       if (font.fontInfo() == ignore_font && font.language() == ignore_language) {
+               // Could only happen with user style
+               cur.message(_("No font change defined."));
+               return;
+       }
+
+       // Try implicit word selection
+       // If there is a change in the language the implicit word selection
+       // is disabled.
+       CursorSlice const resetCursor = cur.top();
+       bool const implicitSelection =
+               font.language() == ignore_language
+               && font.fontInfo().number() == FONT_IGNORE
+               && selectWordWhenUnderCursor(cur, WHOLE_WORD_STRICT);
+
+       // Set font
+       setFont(cur, font, toggleall);
+
+       // Implicit selections are cleared afterwards
+       // and cursor is set to the original position.
+       if (implicitSelection) {
+               cur.clearSelection();
+               cur.top() = resetCursor;
+               cur.resetAnchor();
+       }
+
+       // if there was no selection at all, the point was to change cursor font.
+       // Otherwise, we want to reset it to local text font.
+       if (cur.selection() || implicitSelection)
+               cur.setCurrentFont();
+}
+
+
+docstring Text::getStringForDialog(Cursor & cur)
+{
+       LBUFERR(this == cur.text());
+
+       if (cur.selection())
+               return cur.selectionAsString(false);
+
+       // Try implicit word selection. If there is a change
+       // in the language the implicit word selection is
+       // disabled.
+       selectWordWhenUnderCursor(cur, WHOLE_WORD);
+       docstring const & retval = cur.selectionAsString(false);
+       cur.clearSelection();
+       return retval;
+}
+
+
+void Text::setLabelWidthStringToSequence(Cursor const & cur,
+               docstring const & s)
+{
+       Cursor c = cur;
+       // Find first of same layout in sequence
+       while (!isFirstInSequence(c.pit())) {
+               c.pit() = depthHook(c.pit(), c.paragraph().getDepth());
+       }
+
+       // now apply label width string to every par
+       // in sequence
+       depth_type const depth = c.paragraph().getDepth();
+       Layout const & layout = c.paragraph().layout();
+       for ( ; c.pit() <= c.lastpit() ; ++c.pit()) {
+               while (c.paragraph().getDepth() > depth) {
+                       ++c.pit();
+                       if (c.pit() > c.lastpit())
+                               return;
+               }
+               if (c.paragraph().getDepth() < depth)
+                       return;
+               if (c.paragraph().layout() != layout)
+                       return;
+               c.recordUndo();
+               c.paragraph().setLabelWidthString(s);
+       }
+}
+
+
+void Text::setParagraphs(Cursor const & cur, docstring const & arg, bool merge)
+{
+       LBUFERR(cur.text());
+
+       //FIXME UNICODE
+       string const argument = to_utf8(arg);
+       depth_type priordepth = -1;
+       Layout priorlayout;
+       Cursor c(cur.bv());
+       c.setCursor(cur.selectionBegin());
+       pit_type const last_pit = cur.selectionEnd().pit();
+       for ( ; c.pit() <= last_pit ; ++c.pit()) {
+               Paragraph & par = c.paragraph();
+               ParagraphParameters params = par.params();
+               params.read(argument, merge);
+               // Changes to label width string apply to all paragraphs
+               // with same layout in a sequence.
+               // Do this only once for a selected range of paragraphs
+               // of the same layout and depth.
+               c.recordUndo();
+               par.params().apply(params, par.layout());
+               if (par.getDepth() != priordepth || par.layout() != priorlayout)
+                       setLabelWidthStringToSequence(c, params.labelWidthString());
+               priordepth = par.getDepth();
+               priorlayout = par.layout();
+       }
+}
+
+
+void Text::setParagraphs(Cursor const & cur, ParagraphParameters const & p)
+{
+       LBUFERR(cur.text());
+
+       depth_type priordepth = -1;
+       Layout priorlayout;
+       Cursor c(cur.bv());
+       c.setCursor(cur.selectionBegin());
+       pit_type const last_pit = cur.selectionEnd().pit();
+       for ( ; c.pit() <= last_pit ; ++c.pit()) {
+               Paragraph & par = c.paragraph();
+               // Changes to label width string apply to all paragraphs
+               // with same layout in a sequence.
+               // Do this only once for a selected range of paragraphs
+               // of the same layout and depth.
+               cur.recordUndo();
+               par.params().apply(p, par.layout());
+               if (par.getDepth() != priordepth || par.layout() != priorlayout)
+                       setLabelWidthStringToSequence(c,
+                               par.params().labelWidthString());
+               priordepth = par.getDepth();
+               priorlayout = par.layout();
+       }
+}
+
+
+// this really should just insert the inset and not move the cursor.
+void Text::insertInset(Cursor & cur, Inset * inset)
+{
+       LBUFERR(this == cur.text());
+       LBUFERR(inset);
+       cur.paragraph().insertInset(cur.pos(), inset, cur.current_font,
+               Change(cur.buffer()->params().track_changes
+               ? Change::INSERTED : Change::UNCHANGED));
+}
+
+
+bool Text::setCursor(Cursor & cur, pit_type pit, pos_type pos,
+                       bool setfont, bool boundary)
+{
+       TextMetrics const & tm = cur.bv().textMetrics(this);
+       bool const update_needed = !tm.contains(pit);
+       Cursor old = cur;
+       setCursorIntern(cur, pit, pos, setfont, boundary);
+       return cur.bv().checkDepm(cur, old) || update_needed;
+}
+
+
+void Text::setCursorIntern(Cursor & cur, pit_type pit, pos_type pos,
+                           bool setfont, bool boundary)
+{
+       LBUFERR(this == cur.text());
+       cur.boundary(boundary);
+       cur.top().setPitPos(pit, pos);
+       if (setfont)
+               cur.setCurrentFont();
+}
+
+
+bool Text::checkAndActivateInset(Cursor & cur, bool front)
+{
+       if (front && cur.pos() == cur.lastpos())
+               return false;
+       if (!front && cur.pos() == 0)
+               return false;
+       Inset * inset = front ? cur.nextInset() : cur.prevInset();
+       if (!inset || !inset->editable())
+               return false;
+       if (cur.selection() && cur.realAnchor().find(inset) == -1)
+               return false;
+       /*
+        * Apparently, when entering an inset we are expected to be positioned
+        * *before* it in the containing paragraph, regardless of the direction
+        * from which we are entering. Otherwise, cursor placement goes awry,
+        * and when we exit from the beginning, we'll be placed *after* the
+        * inset.
+        */
+       if (!front)
+               --cur.pos();
+       inset->edit(cur, front);
+       cur.setCurrentFont();
+       cur.boundary(false);
+       return true;
+}
+
+
+bool Text::checkAndActivateInsetVisual(Cursor & cur, bool movingForward, bool movingLeft)
+{
+       if (cur.pos() == -1)
+               return false;
+       if (cur.pos() == cur.lastpos())
+               return false;
+       Paragraph & par = cur.paragraph();
+       Inset * inset = par.isInset(cur.pos()) ? par.getInset(cur.pos()) : nullptr;
+       if (!inset || !inset->editable())
+               return false;
+       if (cur.selection() && cur.realAnchor().find(inset) == -1)
+               return false;
+       inset->edit(cur, movingForward,
+               movingLeft ? Inset::ENTRY_DIRECTION_RIGHT : Inset::ENTRY_DIRECTION_LEFT);
+       cur.setCurrentFont();
+       cur.boundary(false);
+       return true;
+}
+
+
+bool Text::cursorBackward(Cursor & cur)
+{
+       // Tell BufferView to test for FitCursor in any case!
+       cur.screenUpdateFlags(Update::FitCursor);
+
+       // not at paragraph start?
+       if (cur.pos() > 0) {
+               // if on right side of boundary (i.e. not at paragraph end, but line end)
+               // -> skip it, i.e. set boundary to true, i.e. go only logically left
+               // there are some exceptions to ignore this: lineseps, newlines, spaces
+#if 0
+               // some effectless debug code to see the values in the debugger
+               bool bound = cur.boundary();
+               int rowpos = cur.textRow().pos();
+               int pos = cur.pos();
+               bool sep = cur.paragraph().isSeparator(cur.pos() - 1);
+               bool newline = cur.paragraph().isNewline(cur.pos() - 1);
+               bool linesep = cur.paragraph().isLineSeparator(cur.pos() - 1);
+#endif
+               if (!cur.boundary() &&
+                               cur.textRow().pos() == cur.pos() &&
+                               !cur.paragraph().isLineSeparator(cur.pos() - 1) &&
+                               !cur.paragraph().isNewline(cur.pos() - 1) &&
+                               !cur.paragraph().isEnvSeparator(cur.pos() - 1) &&
+                               !cur.paragraph().isSeparator(cur.pos() - 1)) {
+                       return setCursor(cur, cur.pit(), cur.pos(), true, true);
+               }
+
+               // go left and try to enter inset
+               if (checkAndActivateInset(cur, false))
+                       return false;
+
+               // normal character left
+               return setCursor(cur, cur.pit(), cur.pos() - 1, true, false);
+       }
+
+       // move to the previous paragraph or do nothing
+       if (cur.pit() > 0) {
+               Paragraph & par = getPar(cur.pit() - 1);
+               pos_type lastpos = par.size();
+               if (lastpos > 0 && par.isEnvSeparator(lastpos - 1))
+                       return setCursor(cur, cur.pit() - 1, lastpos - 1, true, false);
+               else
+                       return setCursor(cur, cur.pit() - 1, lastpos, true, false);
+       }
+       return false;
+}
+
+
+bool Text::cursorVisLeft(Cursor & cur, bool skip_inset)
+{
+       Cursor temp_cur = cur;
+       temp_cur.posVisLeft(skip_inset);
+       if (temp_cur.depth() > cur.depth()) {
+               cur = temp_cur;
+               return false;
+       }
+       return setCursor(cur, temp_cur.pit(), temp_cur.pos(),
+               true, temp_cur.boundary());
+}
+
+
+bool Text::cursorVisRight(Cursor & cur, bool skip_inset)
+{
+       Cursor temp_cur = cur;
+       temp_cur.posVisRight(skip_inset);
+       if (temp_cur.depth() > cur.depth()) {
+               cur = temp_cur;
+               return false;
+       }
+       return setCursor(cur, temp_cur.pit(), temp_cur.pos(),
+               true, temp_cur.boundary());
+}
+
+
+bool Text::cursorForward(Cursor & cur)
+{
+       // Tell BufferView to test for FitCursor in any case!
+       cur.screenUpdateFlags(Update::FitCursor);
+
+       // not at paragraph end?
+       if (cur.pos() != cur.lastpos()) {
+               // in front of editable inset, i.e. jump into it?
+               if (checkAndActivateInset(cur, true))
+                       return false;
+
+               TextMetrics const & tm = cur.bv().textMetrics(this);
+               // if left of boundary -> just jump to right side
+               // but for RTL boundaries don't, because: abc|DDEEFFghi -> abcDDEEF|Fghi
+               if (cur.boundary() && !tm.isRTLBoundary(cur.pit(), cur.pos()))
+                       return setCursor(cur, cur.pit(), cur.pos(), true, false);
+
+               // next position is left of boundary,
+               // but go to next line for special cases like space, newline, linesep
+#if 0
+               // some effectless debug code to see the values in the debugger
+               int endpos = cur.textRow().endpos();
+               int lastpos = cur.lastpos();
+               int pos = cur.pos();
+               bool linesep = cur.paragraph().isLineSeparator(cur.pos());
+               bool newline = cur.paragraph().isNewline(cur.pos());
+               bool sep = cur.paragraph().isSeparator(cur.pos());
+               if (cur.pos() != cur.lastpos()) {
+                       bool linesep2 = cur.paragraph().isLineSeparator(cur.pos()+1);
+                       bool newline2 = cur.paragraph().isNewline(cur.pos()+1);
+                       bool sep2 = cur.paragraph().isSeparator(cur.pos()+1);
+               }
+#endif
+               if (cur.textRow().endpos() == cur.pos() + 1) {
+                       if (cur.paragraph().isEnvSeparator(cur.pos()) &&
+                           cur.pos() + 1 == cur.lastpos() &&
+                           cur.pit() != cur.lastpit()) {
+                               // move to next paragraph
+                               return setCursor(cur, cur.pit() + 1, 0, true, false);
+                       } else if (cur.textRow().endpos() != cur.lastpos() &&
+                                  !cur.paragraph().isNewline(cur.pos()) &&
+                                  !cur.paragraph().isEnvSeparator(cur.pos()) &&
+                                  !cur.paragraph().isLineSeparator(cur.pos()) &&
+                                  !cur.paragraph().isSeparator(cur.pos())) {
+                               return setCursor(cur, cur.pit(), cur.pos() + 1, true, true);
+                       }
+               }
+
+               // in front of RTL boundary? Stay on this side of the boundary because:
+               //   ab|cDDEEFFghi -> abc|DDEEFFghi
+               if (tm.isRTLBoundary(cur.pit(), cur.pos() + 1))
+                       return setCursor(cur, cur.pit(), cur.pos() + 1, true, true);
+
+               // move right
+               return setCursor(cur, cur.pit(), cur.pos() + 1, true, false);
+       }
+
+       // move to next paragraph
+       if (cur.pit() != cur.lastpit())
+               return setCursor(cur, cur.pit() + 1, 0, true, false);
+       return false;
+}
+
+
+bool Text::cursorUpParagraph(Cursor & cur)
+{
+       bool updated = false;
+       if (cur.pos() > 0)
+               updated = setCursor(cur, cur.pit(), 0);
+       else if (cur.pit() != 0)
+               updated = setCursor(cur, cur.pit() - 1, 0);
+       return updated;
+}
+
+
+bool Text::cursorDownParagraph(Cursor & cur)
+{
+       bool updated = false;
+       if (cur.pit() != cur.lastpit())
+               if (lyxrc.mac_like_cursor_movement)
+                       if (cur.pos() == cur.lastpos())
+                               updated = setCursor(cur, cur.pit() + 1, getPar(cur.pit() + 1).size());
+                       else
+                               updated = setCursor(cur, cur.pit(), cur.lastpos());
+               else
+                       updated = setCursor(cur, cur.pit() + 1, 0);
+       else
+               updated = setCursor(cur, cur.pit(), cur.lastpos());
+       return updated;
+}
+
+namespace {
+
+/** delete num_spaces characters between from and to. Return the
+ * number of spaces that got physically deleted (not marked as
+ * deleted) */
+int deleteSpaces(Paragraph & par, pos_type const from, pos_type to,
+                                 int num_spaces, bool const trackChanges)
+{
+       if (num_spaces <= 0)
+               return 0;
+
+       // First, delete spaces marked as inserted
+       int pos = from;
+       while (pos < to && num_spaces > 0) {
+               Change const & change = par.lookupChange(pos);
+               if (change.inserted() && change.currentAuthor()) {
+                       par.eraseChar(pos, trackChanges);
+                       --num_spaces;
+                       --to;
+               } else
+                       ++pos;
+       }
+
+       // Then remove remaining spaces
+       int const psize = par.size();
+       par.eraseChars(from, from + num_spaces, trackChanges);
+       return psize - par.size();
+}
+
+}
+
+
+bool Text::deleteEmptyParagraphMechanism(Cursor & cur,
+               Cursor & old, bool & need_anchor_change)
+{
+       //LYXERR(Debug::DEBUG, "DEPM: cur:\n" << cur << "old:\n" << old);
+
+       Paragraph & oldpar = old.paragraph();
+       bool const trackChanges = cur.buffer()->params().track_changes;
+       bool result = false;
+
+       // We do nothing if cursor did not move
+       if (cur.top() == old.top())
+               return false;
+
+       // We do not do anything on read-only documents
+       if (cur.buffer()->isReadonly())
+               return false;
+
+       // Whether a common inset is found and whether the cursor is still in
+       // the same paragraph (possibly nested).
+       int const depth = cur.find(&old.inset());
+       bool const same_par = depth != -1 && old.idx() == cur[depth].idx()
+               && old.pit() == cur[depth].pit();
+
+       /*
+        * (1) If the chars around the old cursor were spaces and the
+        * paragraph is not in free spacing mode, delete some of them, but
+        * only if the cursor has really moved.
+        */
+
+       /* There are still some small problems that can lead to
+          double spaces stored in the document file or space at
+          the beginning of paragraphs(). This happens if you have
+          the cursor between two spaces and then save. Or if you
+          cut and paste and the selection has a space at the
+          beginning and then save right after the paste. (Lgb)
+       */
+       if (!oldpar.isFreeSpacing()) {
+               // find range of spaces around cursors
+               pos_type from = old.pos();
+               while (from > 0
+                          && oldpar.isLineSeparator(from - 1)
+                          && !oldpar.isDeleted(from - 1))
+                       --from;
+               pos_type to = old.pos();
+               while (to < old.lastpos()
+                          && oldpar.isLineSeparator(to)
+                          && !oldpar.isDeleted(to))
+                       ++to;
+
+               int num_spaces = to - from;
+               // If we are not at the start of the paragraph, keep one space
+               if (from != to && from > 0)
+                       --num_spaces;
+
+               // If cursor is inside range, keep one additional space
+               if (same_par && cur.pos() > from && cur.pos() < to)
+                       --num_spaces;
+
+               // Remove spaces and adapt cursor.
+               if (num_spaces > 0) {
+                       old.recordUndo();
+                       int const deleted =
+                               deleteSpaces(oldpar, from, to, num_spaces, trackChanges);
+                       // correct cur position
+                       // FIXME: there can be other cursors pointing there, we should update them
+                       if (same_par) {
+                               if (cur[depth].pos() >= to)
+                                       cur[depth].pos() -= deleted;
+                               else if (cur[depth].pos() > from)
+                                       cur[depth].pos() = min(from + 1, old.lastpos());
+                               need_anchor_change = true;
+                       }
+                       result = true;
+               }
+       }
+
+       /*
+        * (2) If the paragraph where the cursor was is empty, delete it
+        */
+
+       // only do our other magic if we changed paragraph
+       if (same_par)
+               return result;
+
+       // only do our magic if the paragraph is empty
+       if (!oldpar.empty())
+               return result;
+
+       // don't delete anything if this is the ONLY paragraph!
+       if (old.lastpit() == 0)
+               return result;
+
+       // Do not delete empty paragraphs with keepempty set.
+       if (oldpar.allowEmpty())
+               return result;
+
+       // Delete old par.
+       old.recordUndo(max(old.pit() - 1, pit_type(0)),
+                      min(old.pit() + 1, old.lastpit()));
+       ParagraphList & plist = old.text()->paragraphs();
+       bool const soa = oldpar.params().startOfAppendix();
+       plist.erase(plist.iterator_at(old.pit()));
+       // do not lose start of appendix marker (bug 4212)
+       if (soa && old.pit() < pit_type(plist.size()))
+               plist[old.pit()].params().startOfAppendix(true);
+
+       // see #warning (FIXME?) above
+       if (cur.depth() >= old.depth()) {
+               CursorSlice & curslice = cur[old.depth() - 1];
+               if (&curslice.inset() == &old.inset()
+                   && curslice.idx() == old.idx()
+                   && curslice.pit() > old.pit()) {
+                       --curslice.pit();
+                       // since a paragraph has been deleted, all the
+                       // insets after `old' have been copied and
+                       // their address has changed. Therefore we
+                       // need to `regenerate' cur. (JMarc)
+                       cur.updateInsets(&(cur.bottom().inset()));
+                       need_anchor_change = true;
+               }
+       }
+
+       return true;
+}
+
+
+void Text::deleteEmptyParagraphMechanism(pit_type first, pit_type last, bool trackChanges)
+{
+       pos_type last_pos = pars_[last].size() - 1;
+       deleteEmptyParagraphMechanism(first, last, 0, last_pos, trackChanges);
+}
+
+
+void Text::deleteEmptyParagraphMechanism(pit_type first, pit_type last,
+                                        pos_type first_pos, pos_type last_pos,
+                                        bool trackChanges)
+{
+       LASSERT(first >= 0 && first <= last && last < (int) pars_.size(), return);
+
+       for (pit_type pit = first; pit <= last; ++pit) {
+               Paragraph & par = pars_[pit];
+
+               /*
+                * (1) Delete consecutive spaces
+                */
+               if (!par.isFreeSpacing()) {
+                       pos_type from = (pit == first) ? first_pos : 0;
+                       pos_type to_pos = (pit == last) ? last_pos + 1 : par.size();
+                       while (from < to_pos) {
+                               // skip non-spaces
+                               while (from < par.size()
+                                          && (!par.isLineSeparator(from) || par.isDeleted(from)))
+                                       ++from;
+                               // find string of spaces
+                               pos_type to = from;
+                               while (to < par.size()
+                                          && par.isLineSeparator(to) && !par.isDeleted(to))
+                                       ++to;
+                               // empty? We are done
+                               if (from == to)
+                                       break;
+
+                               int num_spaces = to - from;
+
+                               // If we are not at the extremity of the paragraph, keep one space
+                               if (from != to && from > 0 && to < par.size())
+                                       --num_spaces;
+
+                               // Remove spaces if needed
+                               int const deleted = deleteSpaces(par, from , to, num_spaces, trackChanges);
+                               from = to - deleted;
+                       }
+               }
+
+               /*
+                * (2) Delete empty pragraphs
+                */
+
+               // don't delete anything if this is the only remaining paragraph
+               // within the given range. Note: Text::acceptOrRejectChanges()
+               // sets the cursor to 'first' after calling DEPM
+               if (first == last)
+                       continue;
+
+               // don't delete empty paragraphs with keepempty set
+               if (par.allowEmpty())
+                       continue;
+
+               if (par.empty() || (par.size() == 1 && par.isLineSeparator(0))) {
+                       pars_.erase(pars_.iterator_at(pit));
+                       --pit;
+                       --last;
+                       continue;
+               }
+       }
+}
+
+
+namespace {
+
+// globals...
+typedef limited_stack<pair<docstring, Font>> FontStack;
+static FontStack freeFonts(15);
+static bool toggleall = false;
+
+void toggleAndShow(Cursor & cur, Text * text,
+       Font const & font, bool togall = true)
+{
+       text->toggleFree(cur, font, togall);
+
+       if (font.language() != ignore_language ||
+           font.fontInfo().number() != FONT_IGNORE) {
+               TextMetrics const & tm = cur.bv().textMetrics(text);
+               if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
+                                                      cur.real_current_font))
+                       text->setCursor(cur, cur.pit(), cur.pos(),
+                                       false, !cur.boundary());
+               if (font.language() != ignore_language)
+                       // We need a buffer update if we change the language
+                       // (e.g., with info insets or if the selection contains
+                       // a par label)
+                       cur.forceBufferUpdate();
+       }
+}
+
+
+void moveCursor(Cursor & cur, bool selecting)
+{
+       if (selecting || cur.mark())
+               cur.setSelection();
+}
+
+
+void finishChange(Cursor & cur, bool selecting)
+{
+       cur.finishUndo();
+       moveCursor(cur, selecting);
+}
+
+
+void mathDispatch(Cursor & cur, FuncRequest const & cmd)
+{
+       cur.recordUndo();
+       docstring sel = cur.selectionAsString(false);
+
+       // It may happen that sel is empty but there is a selection
+       replaceSelection(cur);
+
+       // Is this a valid formula?
+       bool valid = true;
+
+       if (sel.empty()) {
+#ifdef ENABLE_ASSERTIONS
+               const int old_pos = cur.pos();
+#endif
+               cur.insert(new InsetMathHull(cur.buffer(), hullSimple));
+#ifdef ENABLE_ASSERTIONS
+               LATTEST(old_pos == cur.pos());
+#endif
+               cur.nextInset()->edit(cur, true);
+               if (cmd.action() != LFUN_MATH_MODE)
+                       // LFUN_MATH_MODE has a different meaning in math mode
+                       cur.dispatch(cmd);
+       } else {
+               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)) {
+                               // 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)
+               cur.message(from_utf8(N_("Math editor mode")));
+       else
+               cur.message(from_utf8(N_("No valid math formula")));
+}
+
+
+void regexpDispatch(Cursor & cur, FuncRequest const & cmd)
+{
+       LASSERT(cmd.action() == LFUN_REGEXP_MODE, return);
+       if (cur.inRegexped()) {
+               cur.message(_("Already in regular expression mode"));
+               return;
+       }
+       cur.recordUndo();
+       docstring sel = cur.selectionAsString(false);
+
+       // It may happen that sel is empty but there is a selection
+       replaceSelection(cur);
+
+       cur.insert(new InsetMathHull(cur.buffer(), hullRegexp));
+       cur.nextInset()->edit(cur, true);
+       cur.niceInsert(sel);
+
+       cur.message(_("Regexp editor mode"));
+}
+
+
+void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
+{
+       cur.recordUndo();
+       cap::replaceSelection(cur);
+       cur.insert(new InsetSpecialChar(kind));
+       cur.posForward();
+}
+
+
+void ipaChar(Cursor & cur, InsetIPAChar::Kind kind)
+{
+       cur.recordUndo();
+       cap::replaceSelection(cur);
+       cur.insert(new InsetIPAChar(kind));
+       cur.posForward();
+}
+
+
+bool doInsertInset(Cursor & cur, Text * text,
+                         FuncRequest const & cmd, bool edit,
+                         bool pastesel, bool resetfont = false)
+{
+       Buffer & buffer = cur.bv().buffer();
+       BufferParams const & bparams = buffer.params();
+       Inset * inset = createInset(&buffer, cmd);
+       if (!inset)
+               return false;
+
+       if (InsetCollapsible * ci = inset->asInsetCollapsible())
+               ci->setButtonLabel();
+
+       cur.recordUndo();
+       if (cmd.action() == LFUN_ARGUMENT_INSERT) {
+               bool cotextinsert = false;
+               InsetArgument * const ia = static_cast<InsetArgument *>(inset);
+               Layout const & lay = cur.paragraph().layout();
+               Layout::LaTeXArgMap args = lay.args();
+               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;
+                       // If we have a selection within a paragraph, use this
+                       if (cur.selection() && cur.selBegin().pit() == cur.selEnd().pit())
+                               ds = cur.selectionAsString(false);
+                       // else use the whole paragraph
+                       else
+                               ds = cur.paragraph().asString();
+                       text->insertInset(cur, inset);
+                       ia->init(cur.paragraph());
+                       if (edit)
+                               inset->edit(cur, true);
+                       // Now put co-text into inset
+                       Font const f(inherit_font, cur.current_font.language());
+                       if (!ds.empty()) {
+                               cur.text()->insertStringAsLines(cur, ds, f);
+                               cur.leaveInset(*inset);
+                       }
+                       return true;
+               }
+       }
+
+       bool gotsel = false;
+       bool move_layout = false;
+       if (cur.selection()) {
+               if (cmd.action() == LFUN_INDEX_INSERT)
+                       copySelectionToTemp(cur);
+               else {
+                       cutSelectionToTemp(cur, pastesel);
+                       /* Move layout information inside the inset if the whole
+                        * paragraph and the inset allows setting layout
+                        * FIXME: this does not work as expected when change tracking is on
+                        *   However, we do not really know what to do in this case.
+                        * FIXME: figure out a good test in the environment case (see #12251).
+                        */
+                       if (cur.paragraph().layout().isCommand()
+                            && cur.paragraph().empty()
+                            && !inset->forcePlainLayout()) {
+                               cur.paragraph().setPlainOrDefaultLayout(bparams.documentClass());
+                               move_layout = true;
+                       }
+               }
+               cur.clearSelection();
+               gotsel = true;
+       } else if (cmd.action() == LFUN_INDEX_INSERT) {
+               gotsel = text->selectWordWhenUnderCursor(cur, WHOLE_WORD);
+               copySelectionToTemp(cur);
+               cur.clearSelection();
+       }
+       text->insertInset(cur, inset);
+
+       InsetText * inset_text = inset->asInsetText();
+       if (inset_text) {
+               Font const & font = inset->inheritFont()
+                       ? cur.bv().textMetrics(text).displayFont(cur.pit(), cur.pos())
+                       : bparams.getFont();
+               inset_text->setOuterFont(cur.bv(), font.fontInfo());
+       }
+
+       if (cmd.action() == LFUN_ARGUMENT_INSERT) {
+               InsetArgument * const ia = static_cast<InsetArgument *>(inset);
+               ia->init(cur.paragraph());
+       }
+
+       if (edit)
+               inset->edit(cur, true);
+
+       if (!gotsel || !pastesel)
+               return true;
+
+       pasteFromTemp(cur, cur.buffer()->errorList("Paste"));
+       cur.buffer()->errors("Paste");
+       cur.clearSelection(); // bug 393
+       cur.finishUndo();
+       if (inset_text) {
+               if (resetfont) {
+                       // Reset of font (not language) is requested.
+                       // Used by InsetIndex (#11961).
+                       Language const * lang = cur.getFont().language();
+                       Font font(bparams.getFont().fontInfo(), lang);
+                       cur.paragraph().resetFonts(font);
+               }
+               inset_text->fixParagraphsFont();
+               cur.pos() = 0;
+               cur.pit() = 0;
+               /* If the containing paragraph has kept its layout, reset the
+                * layout of the first paragraph of the inset.
+                */
+               if (!move_layout)
+                       cur.paragraph().setPlainOrDefaultLayout(bparams.documentClass());
+               // FIXME: what does this do?
+               if (cmd.action() == LFUN_FLEX_INSERT)
+                       return true;
+               Cursor old = cur;
+               cur.leaveInset(*inset);
+               if (cmd.action() == LFUN_PREVIEW_INSERT
+                       || cmd.action() == LFUN_IPA_INSERT)
+                       // trigger preview
+                       notifyCursorLeavesOrEnters(old, cur);
+       } else {
+               cur.leaveInset(*inset);
+               // reset surrounding par to default
+               DocumentClass const & dc = bparams.documentClass();
+               docstring const layoutname = inset->usePlainLayout()
+                       ? dc.plainLayoutName()
+                       : dc.defaultLayoutName();
+               text->setLayout(cur, layoutname);
+       }
+       return true;
+}
+
+
+/// the type of outline operation
+enum OutlineOp {
+       OutlineUp, // Move this header with text down
+       OutlineDown,   // Move this header with text up
+       OutlineIn, // Make this header deeper
+       OutlineOut // Make this header shallower
+};
+
+
+void insertSeparator(Cursor const & cur, depth_type const depth)
+{
+       Buffer & buf = *cur.buffer();
+       lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK));
+       DocumentClass const & tc = buf.params().documentClass();
+       lyx::dispatch(FuncRequest(LFUN_LAYOUT, from_ascii("\"") + tc.plainLayout().name()
+                                 + from_ascii("\" ignoreautonests")));
+       // FIXME: Bibitem mess!
+       if (cur.prevInset() && cur.prevInset()->lyxCode() == BIBITEM_CODE)
+               lyx::dispatch(FuncRequest(LFUN_CHAR_DELETE_BACKWARD));
+       lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
+       while (cur.paragraph().params().depth() > depth)
+               lyx::dispatch(FuncRequest(LFUN_DEPTH_DECREMENT));
+}
+
+
+void outline(OutlineOp mode, Cursor & cur, bool local)
+{
+       Buffer & buf = *cur.buffer();
+       Text & text = *cur.text();
+       pit_type & pit = cur.pit();
+       ParagraphList & pars = text.paragraphs();
+       ParagraphList::iterator const bgn = pars.begin();
+       // The first paragraph of the area to be copied:
+       ParagraphList::iterator start = pars.iterator_at(pit);
+       // The final paragraph of area to be copied:
+       ParagraphList::iterator finish = start;
+       ParagraphList::iterator const end = pars.end();
+       depth_type const current_depth = cur.paragraph().params().depth();
+
+       int const thistoclevel = text.getTocLevel(distance(bgn, start));
+       int toclevel;
+
+       // Move out (down) from this section header
+       if (finish != end)
+               ++finish;
+
+       if (!local || (mode != OutlineIn && mode != OutlineOut)) {
+               // Seek the one (on same level) below
+               for (; finish != end; ++finish) {
+                       toclevel = text.getTocLevel(distance(bgn, finish));
+                       if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
+                               break;
+               }
+       }
+
+       switch (mode) {
+               case OutlineUp: {
+                       if (start == pars.begin())
+                               // Nothing to move.
+                               return;
+                       ParagraphList::iterator dest = start;
+                       // Move out (up) from this header
+                       if (dest == bgn)
+                               return;
+                       // Search previous same-level header above
+                       do {
+                               --dest;
+                               toclevel = text.getTocLevel(distance(bgn, dest));
+                       } while(dest != bgn
+                               && (toclevel == Layout::NOT_IN_TOC
+                                   || toclevel > thistoclevel));
+                       // Not found; do nothing
+                       if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
+                               return;
+                       pit_type newpit = distance(bgn, dest);
+                       pit_type const len = distance(start, finish);
+                       pit_type const deletepit = pit + len;
+                       buf.undo().recordUndo(cur, newpit, deletepit - 1);
+                       // If we move an environment upwards, make sure it is
+                       // separated from its new neighbour below:
+                       // If an environment of the same layout follows, and the moved
+                       // paragraph sequence does not end with a separator, insert one.
+                       ParagraphList::iterator lastmoved = finish;
+                       --lastmoved;
+                       if (start->layout().isEnvironment()
+                           && dest->layout() == start->layout()
+                           && !lastmoved->isEnvSeparator(lastmoved->beginOfBody())) {
+                               cur.pit() = distance(bgn, lastmoved);
+                               cur.pos() = cur.lastpos();
+                               insertSeparator(cur, current_depth);
+                               cur.pit() = pit;
+                       }
+                       // Likewise, if we moved an environment upwards, make sure it
+                       // is separated from its new neighbour above.
+                       // The paragraph before the target of movement
+                       if (dest != bgn) {
+                               ParagraphList::iterator before = dest;
+                               --before;
+                               // Get the parent paragraph (outer in nested context)
+                               pit_type const parent =
+                                       before->params().depth() > current_depth
+                                               ? text.depthHook(distance(bgn, before), current_depth)
+                                               : distance(bgn, before);
+                               // If a environment with same layout preceeds the moved one in the new
+                               // position, and there is no separator yet, insert one.
+                               if (start->layout().isEnvironment()
+                                   && pars[parent].layout() == start->layout()
+                                   && !before->isEnvSeparator(before->beginOfBody())) {
+                                       cur.pit() = distance(bgn, before);
+                                       cur.pos() = cur.lastpos();
+                                       insertSeparator(cur, current_depth);
+                                       cur.pit() = pit;
+                               }
+                       }
+                       newpit = distance(bgn, dest);
+                       pars.splice(dest, start, finish);
+                       cur.pit() = newpit;
+                       break;
+               }
+               case OutlineDown: {
+                       if (finish == end)
+                               // Nothing to move.
+                               return;
+                       // Go one down from *this* header:
+                       ParagraphList::iterator dest = next(finish, 1);
+                       // Go further down to find header to insert in front of:
+                       for (; dest != end; ++dest) {
+                               toclevel = text.getTocLevel(distance(bgn, dest));
+                               if (toclevel != Layout::NOT_IN_TOC
+                                     && toclevel <= thistoclevel)
+                                       break;
+                       }
+                       // One such was found, so go on...
+                       // If we move an environment downwards, make sure it is
+                       // separated from its new neighbour above.
+                       pit_type newpit = distance(bgn, dest);
+                       buf.undo().recordUndo(cur, pit, newpit - 1);
+                       // The paragraph before the target of movement
+                       ParagraphList::iterator before = dest;
+                       --before;
+                       // Get the parent paragraph (outer in nested context)
+                       pit_type const parent =
+                               before->params().depth() > current_depth
+                                       ? text.depthHook(distance(bgn, before), current_depth)
+                                       : distance(bgn, before);
+                       // If a environment with same layout preceeds the moved one in the new
+                       // position, and there is no separator yet, insert one.
+                       if (start->layout().isEnvironment()
+                           && pars[parent].layout() == start->layout()
+                           && !before->isEnvSeparator(before->beginOfBody())) {
+                               cur.pit() = distance(bgn, before);
+                               cur.pos() = cur.lastpos();
+                               insertSeparator(cur, current_depth);
+                               cur.pit() = pit;
+                       }
+                       // Likewise, make sure moved environments are separated
+                       // from their new neighbour below:
+                       // If an environment of the same layout follows, and the moved
+                       // paragraph sequence does not end with a separator, insert one.
+                       ParagraphList::iterator lastmoved = finish;
+                       --lastmoved;
+                       if (dest != end
+                           && start->layout().isEnvironment()
+                           && dest->layout() == start->layout()
+                           && !lastmoved->isEnvSeparator(lastmoved->beginOfBody())) {
+                               cur.pit() = distance(bgn, lastmoved);
+                               cur.pos() = cur.lastpos();
+                               insertSeparator(cur, current_depth);
+                               cur.pit() = pit;
+                       }
+                       newpit = distance(bgn, dest);
+                       pit_type const len = distance(start, finish);
+                       pars.splice(dest, start, finish);
+                       cur.pit() = newpit - len;
+                       break;
+               }
+               case OutlineIn:
+               case OutlineOut: {
+                       // We first iterate without actually doing something
+                       // in order to check whether the action flattens the structure.
+                       // If so, warn (#11178).
+                       ParagraphList::iterator cstart = start;
+                       bool strucchange = false;
+                       for (; cstart != finish; ++cstart) {
+                               toclevel = text.getTocLevel(distance(bgn, cstart));
+                               if (toclevel == Layout::NOT_IN_TOC)
+                                       continue;
+
+                               DocumentClass const & tc = buf.params().documentClass();
+                               int const newtoclevel =
+                                       (mode == OutlineIn ? toclevel + 1 : toclevel - 1);
+
+                               bool found = false;
+                               for (auto const & lay : tc) {
+                                       if (lay.toclevel == newtoclevel
+                                           && lay.isNumHeadingLabelType()
+                                           && cstart->layout().isNumHeadingLabelType()) {
+                                               found = true;
+                                               break;
+                                       }
+                               }
+                               if (!found) {
+                                       strucchange = true;
+                                       break;
+                               }
+                       }
+                       if (strucchange
+                           && frontend::Alert::prompt(_("Action flattens document structure"),
+                                                      _("This action will cause some headings that have been "
+                                                        "on different level before to be on the same level "
+                                                        "since there is no more lower or higher heading level. "
+                                                        "Continue still?"),
+                                                      1, 1,
+                                                      _("&Yes, continue nonetheless"),
+                                                      _("&No, quit operation")) == 1)
+                               break;
+
+                       pit_type const len = distance(start, finish);
+                       buf.undo().recordUndo(cur, pit, pit + len - 1);
+                       for (; start != finish; ++start) {
+                               toclevel = text.getTocLevel(distance(bgn, start));
+                               if (toclevel == Layout::NOT_IN_TOC)
+                                       continue;
+
+                               DocumentClass const & tc = buf.params().documentClass();
+                               int const newtoclevel =
+                                       (mode == OutlineIn ? toclevel + 1 : toclevel - 1);
+
+                               for (auto const & lay : tc) {
+                                       if (lay.toclevel == newtoclevel
+                                           && lay.isNumHeadingLabelType()
+                                           && start->layout().isNumHeadingLabelType()) {
+                                               start->setLayout(lay);
+                                               break;
+                                       }
+                               }
+                       }
+                       break;
+               }
+       }
+}
+
+
+} // namespace
+
+
+void Text::number(Cursor & cur)
+{
+       FontInfo font = ignore_font;
+       font.setNumber(FONT_TOGGLE);
+       toggleAndShow(cur, this, Font(font, ignore_language));
+}
+
+
+bool Text::isRTL(pit_type const pit) const
+{
+       Buffer const & buffer = owner_->buffer();
+       return pars_[pit].isRTL(buffer.params());
+}
+
+
+namespace {
+
+Language const * getLanguage(Cursor const & cur, string const & lang)
+{
+       return lang.empty() ? cur.getFont().language() : languages.getLanguage(lang);
+}
+
+
+docstring resolveLayout(docstring layout, DocIterator const & dit)
+{
+       Paragraph const & par = dit.paragraph();
+       DocumentClass const & tclass = dit.buffer()->params().documentClass();
+
+       if (layout.empty())
+               layout = tclass.defaultLayoutName();
+
+       if (dit.inset().forcePlainLayout(dit.idx()))
+               // in this case only the empty layout is allowed
+               layout = tclass.plainLayoutName();
+       else if (par.usePlainLayout()) {
+               // in this case, default layout maps to empty layout
+               if (layout == tclass.defaultLayoutName())
+                       layout = tclass.plainLayoutName();
+       } else {
+               // otherwise, the empty layout maps to the default
+               if (layout == tclass.plainLayoutName())
+                       layout = tclass.defaultLayoutName();
+       }
+
+       // If the entry is obsolete, use the new one instead.
+       if (tclass.hasLayout(layout)) {
+               docstring const & obs = tclass[layout].obsoleted_by();
+               if (!obs.empty())
+                       layout = obs;
+       }
+       if (!tclass.hasLayout(layout))
+               layout.clear();
+       return layout;
+}
+
+
+bool isAlreadyLayout(docstring const & layout, CursorData const & cur)
+{
+       ParagraphList const & pars = cur.text()->paragraphs();
+
+       pit_type pit = cur.selBegin().pit();
+       pit_type const epit = cur.selEnd().pit() + 1;
+       for ( ; pit != epit; ++pit)
+               if (pars[pit].layout().name() != layout)
+                       return false;
+
+       return true;
+}
+
+
+} // namespace
+
+
+void Text::dispatch(Cursor & cur, FuncRequest & cmd)
+{
+       LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
+
+       // Dispatch if the cursor is inside the text. It is not the
+       // case for context menus (bug 5797).
+       if (cur.text() != this) {
+               cur.undispatched();
+               return;
+       }
+
+       BufferView * bv = &cur.bv();
+       TextMetrics * tm = &bv->textMetrics(this);
+       if (!tm->contains(cur.pit())) {
+               lyx::dispatch(FuncRequest(LFUN_SCREEN_SHOW_CURSOR));
+               tm = &bv->textMetrics(this);
+       }
+
+       // FIXME: We use the update flag to indicates wether a singlePar or a
+       // full screen update is needed. We reset it here but shall we restore it
+       // at the end?
+       cur.noScreenUpdate();
+
+       LBUFERR(this == cur.text());
+
+       // NOTE: This should NOT be a reference. See commit 94a5481a.
+       CursorSlice const oldTopSlice = cur.top();
+       bool const oldBoundary = cur.boundary();
+       bool const oldSelection = cur.selection();
+       // Signals that, even if needsUpdate == false, an update of the
+       // cursor paragraph is required
+       bool singleParUpdate = lyxaction.funcHasFlag(cmd.action(),
+               LyXAction::SingleParUpdate);
+       // Signals that a full-screen update is required
+       bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action(),
+               LyXAction::NoUpdate) || singleParUpdate);
+       bool const last_misspelled = lyxrc.spellcheck_continuously
+               && cur.paragraph().isMisspelled(cur.pos(), true);
+
+       FuncCode const act = cmd.action();
+       switch (act) {
+
+       case LFUN_PARAGRAPH_MOVE_DOWN: {
+               pit_type const pit = cur.pit();
+               cur.recordUndo(pit, pit + 1);
+               pars_.swap(pit, pit + 1);
+               needsUpdate = true;
+               cur.forceBufferUpdate();
+               ++cur.pit();
+               break;
+       }
+
+       case LFUN_PARAGRAPH_MOVE_UP: {
+               pit_type const pit = cur.pit();
+               cur.recordUndo(pit - 1, pit);
+               cur.finishUndo();
+               pars_.swap(pit, pit - 1);
+               --cur.pit();
+               needsUpdate = true;
+               cur.forceBufferUpdate();
+               break;
+       }
+
+       case LFUN_APPENDIX: {
+               Paragraph & par = cur.paragraph();
+               bool start = !par.params().startOfAppendix();
+
+// FIXME: The code below only makes sense at top level.
+// Should LFUN_APPENDIX be restricted to top-level paragraphs?
+               // ensure that we have only one start_of_appendix in this document
+               // FIXME: this don't work for multipart document!
+               for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
+                       if (pars_[tmp].params().startOfAppendix()) {
+                               cur.recordUndo(tmp, tmp);
+                               pars_[tmp].params().startOfAppendix(false);
+                               break;
+                       }
+               }
+
+               cur.recordUndo();
+               par.params().startOfAppendix(start);
+
+               // we can set the refreshing parameters now
+               cur.forceBufferUpdate();
+               break;
+       }
+
+       case LFUN_WORD_DELETE_FORWARD:
+               if (cur.selection())
+                       cutSelection(cur, false);
+               else
+                       deleteWordForward(cur, cmd.getArg(0) != "confirm");
+               finishChange(cur, false);
+               break;
+
+       case LFUN_WORD_DELETE_BACKWARD:
+               if (cur.selection())
+                       cutSelection(cur, false);
+               else
+                       deleteWordBackward(cur, cmd.getArg(0) != "confirm");
+               finishChange(cur, false);
+               break;
+
+       case LFUN_LINE_DELETE_FORWARD:
+               if (cur.selection())
+                       cutSelection(cur, false);
+               else
+                       tm->deleteLineForward(cur);
+               finishChange(cur, false);
+               break;
+
+       case LFUN_BUFFER_BEGIN:
+       case LFUN_BUFFER_BEGIN_SELECT:
+               needsUpdate |= cur.selHandle(act == LFUN_BUFFER_BEGIN_SELECT);
+               if (cur.depth() == 1)
+                       needsUpdate |= cursorTop(cur);
+               else
+                       cur.undispatched();
+               cur.screenUpdateFlags(Update::FitCursor);
+               break;
+
+       case LFUN_BUFFER_END:
+       case LFUN_BUFFER_END_SELECT:
+               needsUpdate |= cur.selHandle(act == LFUN_BUFFER_END_SELECT);
+               if (cur.depth() == 1)
+                       needsUpdate |= cursorBottom(cur);
+               else
+                       cur.undispatched();
+               cur.screenUpdateFlags(Update::FitCursor);
+               break;
+
+       case LFUN_INSET_BEGIN:
+       case LFUN_INSET_BEGIN_SELECT:
+               needsUpdate |= cur.selHandle(act == LFUN_INSET_BEGIN_SELECT);
+               if (cur.depth() == 1 || !cur.top().at_begin())
+                       needsUpdate |= cursorTop(cur);
+               else
+                       cur.undispatched();
+               cur.screenUpdateFlags(Update::FitCursor);
+               break;
+
+       case LFUN_INSET_END:
+       case LFUN_INSET_END_SELECT:
+               needsUpdate |= cur.selHandle(act == LFUN_INSET_END_SELECT);
+               if (cur.depth() == 1 || !cur.top().at_end())
+                       needsUpdate |= cursorBottom(cur);
+               else
+                       cur.undispatched();
+               cur.screenUpdateFlags(Update::FitCursor);
+               break;
+
+       case LFUN_CHAR_FORWARD:
+       case LFUN_CHAR_FORWARD_SELECT: {
+               //LYXERR0(" LFUN_CHAR_FORWARD[SEL]:\n" << cur);
+               needsUpdate |= cur.selHandle(act == LFUN_CHAR_FORWARD_SELECT);
+               bool const cur_moved = cursorForward(cur);
+               needsUpdate |= cur_moved;
+
+               if (!cur_moved && cur.depth() > 1
+                    && oldTopSlice == cur.top() && cur.boundary() == oldBoundary) {
+                       cur.undispatched();
+                       cmd = FuncRequest(LFUN_FINISHED_FORWARD);
+
+                       // we will be moving out the inset, so we should execute
+                       // the depm-mechanism.
+                       // The cursor hasn't changed yet. To give the DEPM the
+                       // possibility of doing something we must provide it with
+                       // two different cursors.
+                       Cursor dummy = cur;
+                       dummy.pos() = dummy.pit() = 0;
+                       if (cur.bv().checkDepm(dummy, cur))
+                               cur.forceBufferUpdate();
+               }
+               break;
+       }
+
+       case LFUN_CHAR_BACKWARD:
+       case LFUN_CHAR_BACKWARD_SELECT: {
+               //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
+               needsUpdate |= cur.selHandle(act == LFUN_CHAR_BACKWARD_SELECT);
+               bool const cur_moved = cursorBackward(cur);
+               needsUpdate |= cur_moved;
+
+               if (!cur_moved && cur.depth() > 1
+                    && oldTopSlice == cur.top() && cur.boundary() == oldBoundary) {
+                       cur.undispatched();
+                       cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
+
+                       // we will be moving out the inset, so we should execute
+                       // the depm-mechanism.
+                       // The cursor hasn't changed yet. To give the DEPM the
+                       // possibility of doing something we must provide it with
+                       // two different cursors.
+                       Cursor dummy = cur;
+                       dummy.pos() = cur.lastpos();
+                       dummy.pit() = cur.lastpit();
+                       if (cur.bv().checkDepm(dummy, cur))
+                               cur.forceBufferUpdate();
+               }
+               break;
+       }
+
+       case LFUN_CHAR_LEFT:
+       case LFUN_CHAR_LEFT_SELECT:
+               if (lyxrc.visual_cursor) {
+                       needsUpdate |= cur.selHandle(act == LFUN_CHAR_LEFT_SELECT);
+                       bool const cur_moved = cursorVisLeft(cur);
+                       needsUpdate |= cur_moved;
+                       if (!cur_moved && cur.depth() > 1
+                            && oldTopSlice == cur.top() && cur.boundary() == oldBoundary) {
+                               cur.undispatched();
+                               cmd = FuncRequest(LFUN_FINISHED_LEFT);
+                       }
+               } else {
+                       if (cur.reverseDirectionNeeded()) {
+                               cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
+                                       LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
+                       } else {
+                               cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
+                                       LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
+                       }
+                       dispatch(cur, cmd);
+                       return;
+               }
+               break;
+
+       case LFUN_CHAR_RIGHT:
+       case LFUN_CHAR_RIGHT_SELECT:
+               if (lyxrc.visual_cursor) {
+                       needsUpdate |= cur.selHandle(cmd.action() == LFUN_CHAR_RIGHT_SELECT);
+                       bool const cur_moved = cursorVisRight(cur);
+                       needsUpdate |= cur_moved;
+                       if (!cur_moved && cur.depth() > 1
+                            && oldTopSlice == cur.top() && cur.boundary() == oldBoundary) {
+                               cur.undispatched();
+                               cmd = FuncRequest(LFUN_FINISHED_RIGHT);
+                       }
+               } else {
+                       if (cur.reverseDirectionNeeded()) {
+                               cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
+                                       LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
+                       } else {
+                               cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
+                                       LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
+                       }
+                       dispatch(cur, cmd);
+                       return;
+               }
+               break;
+
+
+       case LFUN_UP_SELECT:
+       case LFUN_DOWN_SELECT:
+       case LFUN_UP:
+       case LFUN_DOWN: {
+               // stop/start the selection
+               bool select = cmd.action() == LFUN_DOWN_SELECT ||
+                       cmd.action() == LFUN_UP_SELECT;
+
+               // move cursor up/down
+               bool up = cmd.action() == LFUN_UP_SELECT || cmd.action() == LFUN_UP;
+               bool const atFirstOrLastRow = cur.atFirstOrLastRow(up);
+
+               if (!atFirstOrLastRow) {
+                       needsUpdate |= cur.selHandle(select);
+                       cur.upDownInText(up, needsUpdate);
+                       needsUpdate |= cur.beforeDispatchCursor().inMathed();
+               } else {
+                       pos_type newpos = up ? 0 : cur.lastpos();
+                       if (lyxrc.mac_like_cursor_movement && cur.pos() != newpos) {
+                               needsUpdate |= cur.selHandle(select);
+                               // we do not reset the targetx of the cursor
+                               cur.pos() = newpos;
+                               needsUpdate |= bv->checkDepm(cur, bv->cursor());
+                               cur.updateTextTargetOffset();
+                               if (needsUpdate)
+                                       cur.forceBufferUpdate();
+                               break;
+                       }
+
+                       // if the cursor cannot be moved up or down do not remove
+                       // the selection right now, but wait for the next dispatch.
+                       if (select)
+                               needsUpdate |= cur.selHandle(select);
+                       cur.upDownInText(up, needsUpdate);
+                       cur.undispatched();
+               }
+
+               break;
+       }
+
+       case LFUN_PARAGRAPH_SELECT:
+               if (cur.pos() > 0)
+                       needsUpdate |= setCursor(cur, cur.pit(), 0);
+               needsUpdate |= cur.selHandle(true);
+               if (cur.pos() < cur.lastpos())
+                       needsUpdate |= setCursor(cur, cur.pit(), cur.lastpos());
+               break;
+
+       case LFUN_PARAGRAPH_UP:
+       case LFUN_PARAGRAPH_UP_SELECT:
+               needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_UP_SELECT);
+               needsUpdate |= cursorUpParagraph(cur);
+               break;
+
+       case LFUN_PARAGRAPH_DOWN:
+       case LFUN_PARAGRAPH_DOWN_SELECT:
+               needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_DOWN_SELECT);
+               needsUpdate |= cursorDownParagraph(cur);
+               break;
+
+       case LFUN_LINE_BEGIN:
+       case LFUN_LINE_BEGIN_SELECT:
+               needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_BEGIN_SELECT);
+               needsUpdate |= tm->cursorHome(cur);
+               break;
+
+       case LFUN_LINE_END:
+       case LFUN_LINE_END_SELECT:
+               needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_END_SELECT);
+               needsUpdate |= tm->cursorEnd(cur);
+               break;
+
+       case LFUN_SECTION_SELECT: {
+               Buffer const & buf = *cur.buffer();
+               pit_type const pit = cur.pit();
+               ParagraphList & pars = buf.text().paragraphs();
+               ParagraphList::iterator bgn = pars.begin();
+               // The first paragraph of the area to be selected:
+               ParagraphList::iterator start = pars.iterator_at(pit);
+               // The final paragraph of area to be selected:
+               ParagraphList::iterator finish = start;
+               ParagraphList::iterator end = pars.end();
+
+               int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
+               if (thistoclevel == Layout::NOT_IN_TOC)
+                       break;
+
+               cur.pos() = 0;
+               Cursor const old_cur = cur;
+               needsUpdate |= cur.selHandle(true);
+
+               // Move out (down) from this section header
+               if (finish != end)
+                       ++finish;
+
+               // Seek the one (on same level) below
+               for (; finish != end; ++finish, ++cur.pit()) {
+                       int const toclevel = buf.text().getTocLevel(distance(bgn, finish));
+                       if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
+                               break;
+               }
+               cur.pos() = cur.lastpos();
+               cur.boundary(false);
+               cur.setCurrentFont();
+
+               needsUpdate |= cur != old_cur;
+               break;
+       }
+
+       case LFUN_WORD_RIGHT:
+       case LFUN_WORD_RIGHT_SELECT:
+               if (lyxrc.visual_cursor) {
+                       needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_RIGHT_SELECT);
+                       bool const cur_moved = cursorVisRightOneWord(cur);
+                       needsUpdate |= cur_moved;
+                       if (!cur_moved && cur.depth() > 1
+                            && oldTopSlice == cur.top() && cur.boundary() == oldBoundary) {
+                               cur.undispatched();
+                               cmd = FuncRequest(LFUN_FINISHED_RIGHT);
+                       }
+               } else {
+                       if (cur.reverseDirectionNeeded()) {
+                               cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
+                                               LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
+                       } else {
+                               cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
+                                               LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
+                       }
+                       dispatch(cur, cmd);
+                       return;
+               }
+               break;
+
+       case LFUN_WORD_FORWARD:
+       case LFUN_WORD_FORWARD_SELECT: {
+               needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_FORWARD_SELECT);
+               bool const cur_moved = cursorForwardOneWord(cur);
+               needsUpdate |= cur_moved;
+
+               if (!cur_moved && cur.depth() > 1
+                    && oldTopSlice == cur.top() && cur.boundary() == oldBoundary) {
+                       cur.undispatched();
+                       cmd = FuncRequest(LFUN_FINISHED_FORWARD);
+
+                       // we will be moving out the inset, so we should execute
+                       // the depm-mechanism.
+                       // The cursor hasn't changed yet. To give the DEPM the
+                       // possibility of doing something we must provide it with
+                       // two different cursors.
+                       Cursor dummy = cur;
+                       dummy.pos() = dummy.pit() = 0;
+                       if (cur.bv().checkDepm(dummy, cur))
+                               cur.forceBufferUpdate();
+               }
+               break;
+       }
+
+       case LFUN_WORD_LEFT:
+       case LFUN_WORD_LEFT_SELECT:
+               if (lyxrc.visual_cursor) {
+                       needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_LEFT_SELECT);
+                       bool const cur_moved = cursorVisLeftOneWord(cur);
+                       needsUpdate |= cur_moved;
+                       if (!cur_moved && cur.depth() > 1
+                            && oldTopSlice == cur.top() && cur.boundary() == oldBoundary) {
+                               cur.undispatched();
+                               cmd = FuncRequest(LFUN_FINISHED_LEFT);
+                       }
+               } else {
+                       if (cur.reverseDirectionNeeded()) {
+                               cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
+                                               LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
+                       } else {
+                               cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
+                                               LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
+                       }
+                       dispatch(cur, cmd);
+                       return;
+               }
+               break;
+
+       case LFUN_WORD_BACKWARD:
+       case LFUN_WORD_BACKWARD_SELECT: {
+               needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_BACKWARD_SELECT);
+               bool const cur_moved = cursorBackwardOneWord(cur);
+               needsUpdate |= cur_moved;
+
+               if (!cur_moved && cur.depth() > 1
+                    && oldTopSlice == cur.top() && cur.boundary() == oldBoundary) {
+                       cur.undispatched();
+                       cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
+
+                       // we will be moving out the inset, so we should execute
+                       // the depm-mechanism.
+                       // The cursor hasn't changed yet. To give the DEPM the
+                       // possibility of doing something we must provide it with
+                       // two different cursors.
+                       Cursor dummy = cur;
+                       dummy.pos() = cur.lastpos();
+                       dummy.pit() = cur.lastpit();
+                       if (cur.bv().checkDepm(dummy, cur))
+                               cur.forceBufferUpdate();
+               }
+               break;
+       }
+
+       case LFUN_WORD_SELECT: {
+               selectWord(cur, WHOLE_WORD);
+               finishChange(cur, true);
+               break;
+       }
+
+       case LFUN_NEWLINE_INSERT: {
+               InsetNewlineParams inp;
+               docstring const & arg = cmd.argument();
+               if (arg == "linebreak")
+                       inp.kind = InsetNewlineParams::LINEBREAK;
+               else
+                       inp.kind = InsetNewlineParams::NEWLINE;
+               cap::replaceSelection(cur);
+               cur.recordUndo();
+               cur.insert(new InsetNewline(inp));
+               cur.posForward();
+               moveCursor(cur, false);
+               break;
+       }
+
+       case LFUN_TAB_INSERT: {
+               bool const multi_par_selection = cur.selection() &&
+                       cur.selBegin().pit() != cur.selEnd().pit();
+               if (multi_par_selection) {
+                       // If there is a multi-paragraph selection, a tab is inserted
+                       // at the beginning of each paragraph.
+                       cur.recordUndoSelection();
+                       pit_type const pit_end = cur.selEnd().pit();
+                       for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
+                               pars_[pit].insertChar(0, '\t',
+                                                     bv->buffer().params().track_changes);
+                               // Update the selection pos to make sure the selection does not
+                               // change as the inserted tab will increase the logical pos.
+                               if (cur.realAnchor().pit() == pit)
+                                       cur.realAnchor().forwardPos();
+                               if (cur.pit() == pit)
+                                       cur.forwardPos();
+                       }
+                       cur.finishUndo();
+               } else {
+                       // Maybe we shouldn't allow tabs within a line, because they
+                       // are not (yet) aligned as one might do expect.
+                       FuncRequest ncmd(LFUN_SELF_INSERT, from_ascii("\t"));
+                       dispatch(cur, ncmd);
+               }
+               break;
+       }
+
+       case LFUN_TAB_DELETE: {
+               bool const tc = bv->buffer().params().track_changes;
+               if (cur.selection()) {
+                       // If there is a selection, a tab (if present) is removed from
+                       // the beginning of each paragraph.
+                       cur.recordUndoSelection();
+                       pit_type const pit_end = cur.selEnd().pit();
+                       for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
+                               Paragraph & par = paragraphs()[pit];
+                               if (par.empty())
+                                       continue;
+                               char_type const c = par.getChar(0);
+                               if (c == '\t' || c == ' ') {
+                                       // remove either 1 tab or 4 spaces.
+                                       int const n = (c == ' ' ? 4 : 1);
+                                       for (int i = 0; i < n
+                                                 && !par.empty() && par.getChar(0) == c; ++i) {
+                                               if (cur.pit() == pit)
+                                                       cur.posBackward();
+                                               if (cur.realAnchor().pit() == pit
+                                                         && cur.realAnchor().pos() > 0 )
+                                                       cur.realAnchor().backwardPos();
+                                               par.eraseChar(0, tc);
+                                       }
+                               }
+                       }
+                       cur.finishUndo();
+               } else {
+                       // If there is no selection, try to remove a tab or some spaces
+                       // before the position of the cursor.
+                       Paragraph & par = paragraphs()[cur.pit()];
+                       pos_type const pos = cur.pos();
+
+                       if (pos == 0)
+                               break;
+
+                       char_type const c = par.getChar(pos - 1);
+                       cur.recordUndo();
+                       if (c == '\t') {
+                               cur.posBackward();
+                               par.eraseChar(cur.pos(), tc);
+                       } else
+                               for (int n_spaces = 0;
+                                    cur.pos() > 0
+                                            && par.getChar(cur.pos() - 1) == ' '
+                                            && n_spaces < 4;
+                                    ++n_spaces) {
+                                       cur.posBackward();
+                                       par.eraseChar(cur.pos(), tc);
+                               }
+                       cur.finishUndo();
+               }
+               break;
+       }
+
+       case LFUN_CHAR_DELETE_FORWARD:
+               if (!cur.selection()) {
+                       if (cur.pos() == cur.paragraph().size())
+                               // Par boundary, force full-screen update
+                               singleParUpdate = false;
+                       else if (cmd.getArg(0) == "confirm" && cur.confirmDeletion()) {
+                               cur.resetAnchor();
+                               cur.selection(true);
+                               cur.posForward();
+                               cur.setSelection();
+                               break;
+                       }
+                       needsUpdate |= erase(cur);
+                       cur.resetAnchor();
+               } else {
+                       cutSelection(cur, false);
+                       cur.setCurrentFont();
+                       singleParUpdate = false;
+               }
+               moveCursor(cur, false);
+               break;
+
+       case LFUN_CHAR_DELETE_BACKWARD:
+               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;
+                               else if (cmd.getArg(0) == "confirm" && cur.confirmDeletion(true)) {
+                                       cur.resetAnchor();
+                                       cur.selection(true);
+                                       cur.posBackward();
+                                       cur.setSelection();
+                                       break;
+                               }
+                               needsUpdate |= backspace(cur);
+                               cur.resetAnchor();
+                               if (par_boundary && !first_par && cur.pos() > 0
+                                   && cur.paragraph().isEnvSeparator(cur.pos() - 1)) {
+                                       needsUpdate |= backspace(cur);
+                                       cur.resetAnchor();
+                               }
+                       }
+               } else {
+                       DocIterator const dit = cur.selectionBegin();
+                       cutSelection(cur, false);
+                       if (cur.buffer()->params().track_changes)
+                               // since we're doing backwards deletion,
+                               // and the selection is not really cut,
+                               // move cursor before selection (#11630)
+                               cur.setCursor(dit);
+                       cur.setCurrentFont();
+                       singleParUpdate = false;
+               }
+               break;
+
+       case LFUN_PARAGRAPH_BREAK: {
+               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 > 0 ? depthHook(pit, par.getDepth()) : pit;
+               if (prev < pit && cur.pos() == par.beginOfBody()
+                   && par.empty() && !par.isEnvSeparator(cur.pos())
+                   && !par.layout().keepempty
+                   && !par.layout().isCommand()
+                   && pars_[prev].layout() != par.layout()
+                   && 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, "plain"));
+                               lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
+                               lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
+                       } else {
+                               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()) && cmd.getArg(1) != "ignoresep")
+                               cur.posForward();
+                       breakParagraph(cur, cmd.getArg(0) == "inverse");
+               }
+               cur.resetAnchor();
+               // If we have a list and autoinsert item insets,
+               // insert them now.
+               Layout::LaTeXArgMap args = par.layout().args();
+               for (auto const & thearg : args) {
+                       Layout::latexarg arg = thearg.second;
+                       if (arg.autoinsert && prefixIs(thearg.first, "item:")) {
+                               FuncRequest cmd2(LFUN_ARGUMENT_INSERT, thearg.first);
+                               lyx::dispatch(cmd2);
+                       }
+               }
+               break;
+       }
+
+       case LFUN_INSET_INSERT: {
+               cur.recordUndo();
+
+               // We have to avoid triggering InstantPreview loading
+               // before inserting into the document. See bug #5626.
+               bool loaded = bv->buffer().isFullyLoaded();
+               bv->buffer().setFullyLoaded(false);
+               Inset * inset = createInset(&bv->buffer(), cmd);
+               bv->buffer().setFullyLoaded(loaded);
+
+               if (inset) {
+                       // FIXME (Abdel 01/02/2006):
+                       // What follows would be a partial fix for bug 2154:
+                       //   http://www.lyx.org/trac/ticket/2154
+                       // This automatically put the label inset _after_ a
+                       // numbered section. It should be possible to extend the mechanism
+                       // to any kind of LateX environement.
+                       // The correct way to fix that bug would be at LateX generation.
+                       // I'll let the code here for reference as it could be used for some
+                       // other feature like "automatic labelling".
+                       /*
+                       Paragraph & par = pars_[cur.pit()];
+                       if (inset->lyxCode() == LABEL_CODE
+                               && !par.layout().counter.empty()) {
+                               // Go to the end of the paragraph
+                               // Warning: Because of Change-Tracking, the last
+                               // position is 'size()' and not 'size()-1':
+                               cur.pos() = par.size();
+                               // Insert a new paragraph
+                               FuncRequest fr(LFUN_PARAGRAPH_BREAK);
+                               dispatch(cur, fr);
+                       }
+                       */
+                       if (cur.selection())
+                               cutSelection(cur, false);
+                       cur.insert(inset);
+                       cur.forceBufferUpdate();
+                       if (inset->editable() && inset->asInsetText())
+                               inset->edit(cur, true);
+                       else
+                               cur.posForward();
+
+                       // trigger InstantPreview now
+                       if (inset->lyxCode() == EXTERNAL_CODE) {
+                               InsetExternal & ins =
+                                       static_cast<InsetExternal &>(*inset);
+                               ins.updatePreview();
+                       }
+               }
+
+               break;
+       }
+
+       case LFUN_INSET_DISSOLVE: {
+               if (dissolveInset(cur)) {
+                       needsUpdate = true;
+                       cur.forceBufferUpdate();
+               }
+               break;
+       }
+
+       case LFUN_INSET_SPLIT: {
+               if (splitInset(cur)) {
+                       needsUpdate = true;
+                       cur.forceBufferUpdate();
+               }
+               break;
+       }
+
+       case LFUN_GRAPHICS_SET_GROUP: {
+               InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
+               if (!ins)
+                       break;
+
+               cur.recordUndo();
+
+               string id = to_utf8(cmd.argument());
+               string grp = graphics::getGroupParams(bv->buffer(), id);
+               InsetGraphicsParams tmp, inspar = ins->getParams();
+
+               if (id.empty())
+                       inspar.groupId = to_utf8(cmd.argument());
+               else {
+                       InsetGraphics::string2params(grp, bv->buffer(), tmp);
+                       tmp.filename = inspar.filename;
+                       inspar = tmp;
+               }
+
+               ins->setParams(inspar);
+               break;
+       }
+
+       case LFUN_SPACE_INSERT:
+               if (cur.paragraph().layout().free_spacing)
+                       insertChar(cur, ' ');
+               else {
+                       doInsertInset(cur, this, cmd, false, false);
+                       cur.posForward();
+               }
+               moveCursor(cur, false);
+               break;
+
+       case LFUN_SPECIALCHAR_INSERT: {
+               string const name = to_utf8(cmd.argument());
+               if (name == "hyphenation")
+                       specialChar(cur, InsetSpecialChar::HYPHENATION);
+               else if (name == "allowbreak")
+                       specialChar(cur, InsetSpecialChar::ALLOWBREAK);
+               else if (name == "ligature-break")
+                       specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
+               else if (name == "slash")
+                       specialChar(cur, InsetSpecialChar::SLASH);
+               else if (name == "nobreakdash")
+                       specialChar(cur, InsetSpecialChar::NOBREAKDASH);
+               else if (name == "dots")
+                       specialChar(cur, InsetSpecialChar::LDOTS);
+               else if (name == "end-of-sentence")
+                       specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
+               else if (name == "menu-separator")
+                       specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
+               else if (name == "lyx")
+                       specialChar(cur, InsetSpecialChar::PHRASE_LYX);
+               else if (name == "tex")
+                       specialChar(cur, InsetSpecialChar::PHRASE_TEX);
+               else if (name == "latex")
+                       specialChar(cur, InsetSpecialChar::PHRASE_LATEX);
+               else if (name == "latex2e")
+                       specialChar(cur, InsetSpecialChar::PHRASE_LATEX2E);
+               else if (name.empty())
+                       lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
+               else
+                       lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
+               break;
+       }
+
+       case LFUN_IPAMACRO_INSERT: {
+               string const arg = cmd.getArg(0);
+               if (arg == "deco") {
+                       // Open the inset, and move the current selection
+                       // inside it.
+                       doInsertInset(cur, this, cmd, true, true);
+                       cur.posForward();
+                       // Some insets are numbered, others are shown in the outline pane so
+                       // let's update the labels and the toc backend.
+                       cur.forceBufferUpdate();
+                       break;
+               }
+               if (arg == "tone-falling")
+                       ipaChar(cur, InsetIPAChar::TONE_FALLING);
+               else if (arg == "tone-rising")
+                       ipaChar(cur, InsetIPAChar::TONE_RISING);
+               else if (arg == "tone-high-rising")
+                       ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING);
+               else if (arg == "tone-low-rising")
+                       ipaChar(cur, InsetIPAChar::TONE_LOW_RISING);
+               else if (arg == "tone-high-rising-falling")
+                       ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING_FALLING);
+               else if (arg.empty())
+                       lyxerr << "LyX function 'ipamacro-insert' needs an argument." << endl;
+               else
+                       lyxerr << "Wrong argument for LyX function 'ipamacro-insert'." << endl;
+               break;
+       }
+
+       case LFUN_WORD_UPCASE:
+               changeCase(cur, text_uppercase, cmd.getArg(0) == "partial");
+               break;
+
+       case LFUN_WORD_LOWCASE:
+               changeCase(cur, text_lowercase, cmd.getArg(0) == "partial");
+               break;
+
+       case LFUN_WORD_CAPITALIZE:
+               changeCase(cur, text_capitalization, cmd.getArg(0) == "partial");
+               break;
+
+       case LFUN_CHARS_TRANSPOSE:
+               charsTranspose(cur);
+               break;
+
+       case LFUN_PASTE: {
+               cur.message(_("Paste"));
+               LASSERT(cur.selBegin().idx() == cur.selEnd().idx(), break);
+               cap::replaceSelection(cur);
+
+               // without argument?
+               string const arg = to_utf8(cmd.argument());
+               if (arg.empty()) {
+                       bool tryGraphics = true;
+                       if (theClipboard().isInternal())
+                               pasteFromStack(cur, bv->buffer().errorList("Paste"), 0);
+                       else if (theClipboard().hasTextContents()) {
+                               if (pasteClipboardText(cur, bv->buffer().errorList("Paste"),
+                                                      !cur.paragraph().parbreakIsNewline(),
+                                                          Clipboard::AnyTextType))
+                                       tryGraphics = false;
+                       }
+                       if (tryGraphics && theClipboard().hasGraphicsContents())
+                               pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"));
+               } else if (isStrUnsignedInt(arg)) {
+                       // we have a numerical argument
+                       pasteFromStack(cur, bv->buffer().errorList("Paste"),
+                                      convert<unsigned int>(arg));
+               } else if (arg == "html" || arg == "latex") {
+                       Clipboard::TextType type = (arg == "html") ?
+                               Clipboard::HtmlTextType : Clipboard::LaTeXTextType;
+                       pasteClipboardText(cur, bv->buffer().errorList("Paste"), true, type);
+               } else {
+                       Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
+                       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
+                               // we also check in getStatus()
+                               LYXERR0("Unrecognized graphics type: " << arg);
+
+                       pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"), type);
+               }
+
+               bv->buffer().errors("Paste");
+               bv->buffer().updatePreviews(); // bug 11619
+               cur.clearSelection(); // bug 393
+               cur.finishUndo();
+               break;
+       }
+
+       case LFUN_CUT:
+               cutSelection(cur, true);
+               cur.message(_("Cut"));
+               break;
+
+       case LFUN_SERVER_GET_XY:
+               cur.message(from_utf8(
+                       convert<string>(tm->cursorX(cur.top(), cur.boundary()))
+                       + ' ' + convert<string>(tm->cursorY(cur.top(), cur.boundary()))));
+               break;
+
+       case LFUN_SERVER_SET_XY: {
+               int x = 0;
+               int y = 0;
+               istringstream is(to_utf8(cmd.argument()));
+               is >> x >> y;
+               if (!is)
+                       lyxerr << "SETXY: Could not parse coordinates in '"
+                              << to_utf8(cmd.argument()) << endl;
+               else
+                       tm->setCursorFromCoordinates(cur, x, y);
+               break;
+       }
+
+       case LFUN_SERVER_GET_LAYOUT:
+               cur.message(cur.paragraph().layout().name());
+               break;
+
+       case LFUN_LAYOUT:
+       case LFUN_LAYOUT_TOGGLE: {
+               bool const ignoreautonests = cmd.getArg(1) == "ignoreautonests";
+               docstring req_layout = ignoreautonests ? from_utf8(cmd.getArg(0)) : cmd.argument();
+               LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(req_layout));
+
+               docstring layout = resolveLayout(req_layout, cur);
+               if (layout.empty()) {
+                       cur.errorMessage(from_utf8(N_("Layout ")) + req_layout +
+                               from_utf8(N_(" not known")));
+                       break;
+               }
+
+               docstring const old_layout = cur.paragraph().layout().name();
+               bool change_layout = !isAlreadyLayout(layout, cur);
+
+               if (cmd.action() == LFUN_LAYOUT_TOGGLE && !change_layout) {
+                       change_layout = true;
+                       layout = resolveLayout(docstring(), cur);
+               }
+
+               if (change_layout) {
+                       setLayout(cur, layout);
+                       if (cur.pit() > 0 && !ignoreautonests) {
+                               pit_type prev_pit = cur.pit() - 1;
+                               depth_type const cur_depth = pars_[cur.pit()].getDepth();
+                               // Scan for the previous par on same nesting level
+                               while (prev_pit > 0 && pars_[prev_pit].getDepth() > cur_depth)
+                                       --prev_pit;
+                               set<docstring> const & autonests =
+                                               pars_[prev_pit].layout().autonests();
+                               set<docstring> const & autonested =
+                                               pars_[cur.pit()].layout().isAutonestedBy();
+                               if (autonests.find(layout) != autonests.end()
+                                               || autonested.find(old_layout) != autonested.end())
+                                       lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
+                       }
+               }
+
+               DocumentClass const & tclass = bv->buffer().params().documentClass();
+               bool inautoarg = false;
+               for (auto const & la_pair : tclass[layout].args()) {
+                       Layout::latexarg const & arg = la_pair.second;
+                       if (arg.autoinsert) {
+                               // If we had already inserted an arg automatically,
+                               // leave this now in order to insert the next one.
+                               if (inautoarg) {
+                                       cur.leaveInset(cur.inset());
+                                       cur.posForward();
+                               }
+                               FuncRequest const cmd2(LFUN_ARGUMENT_INSERT, la_pair.first);
+                               lyx::dispatch(cmd2);
+                               inautoarg = true;
+                       }
+               }
+
+               break;
+       }
+
+       case LFUN_ENVIRONMENT_SPLIT: {
+               bool const outer = cmd.argument() == "outer";
+               bool const previous = cmd.argument() == "previous";
+               bool const before = cmd.argument() == "before";
+               bool const normal = cmd.argument().empty();
+               Paragraph const & para = cur.paragraph();
+               docstring layout;
+               if (para.layout().isEnvironment())
+                       layout = para.layout().name();
+               depth_type split_depth = cur.paragraph().params().depth();
+               vector<depth_type> nextpars_depth;
+               if (outer || previous) {
+                       // check if we have an environment in our scope
+                       pit_type pit = cur.pit();
+                       Paragraph cpar = pars_[pit];
+                       while (true) {
+                               if (pit == 0)
+                                       break;
+                               --pit;
+                               cpar = pars_[pit];
+                               if (layout.empty() && previous
+                                   && cpar.layout().isEnvironment()
+                                   && cpar.params().depth() <= split_depth)
+                                       layout = cpar.layout().name();
+                               if (cpar.params().depth() < split_depth
+                                   && cpar.layout().isEnvironment()) {
+                                               if (!previous)
+                                                       layout = cpar.layout().name();
+                                               split_depth = cpar.params().depth();
+                               }
+                               if (cpar.params().depth() == 0)
+                                       break;
+                       }
+               }
+               if ((outer || normal) && cur.pit() < cur.lastpit()) {
+                       // save nesting of following paragraphs if they are deeper
+                       // or same depth
+                       pit_type offset = 1;
+                       depth_type cur_depth = pars_[cur.pit()].params().depth();
+                       while (cur.pit() + offset <= cur.lastpit()) {
+                               Paragraph cpar = pars_[cur.pit() + offset];
+                               depth_type nextpar_depth = cpar.params().depth();
+                               if (cur_depth <= nextpar_depth && nextpar_depth > 0) {
+                                       nextpars_depth.push_back(nextpar_depth);
+                                       cur_depth = nextpar_depth;
+                                       ++offset;
+                               } else
+                                       break;
+                       }
+               }
+               if (before)
+                       cur.top().setPitPos(cur.pit(), 0);
+               if (before || cur.pos() > 0)
+                       lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK));
+               else if (previous && cur.nextInset() && cur.nextInset()->lyxCode() == SEPARATOR_CODE)
+                       lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse ignoresep"));
+               if (outer) {
+                       while (cur.paragraph().params().depth() > split_depth)
+                               lyx::dispatch(FuncRequest(LFUN_DEPTH_DECREMENT));
+               }
+               DocumentClass const & tc = bv->buffer().params().documentClass();
+               lyx::dispatch(FuncRequest(LFUN_LAYOUT, from_ascii("\"") + tc.plainLayout().name()
+                                         + from_ascii("\" ignoreautonests")));
+               // FIXME: Bibitem mess!
+               if (cur.prevInset() && cur.prevInset()->lyxCode() == BIBITEM_CODE)
+                       lyx::dispatch(FuncRequest(LFUN_CHAR_DELETE_BACKWARD));
+               lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
+               if (before) {
+                       cur.backwardPos();
+                       lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse ignoresep"));
+                       while (cur.paragraph().params().depth() < split_depth)
+                               lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
+               }
+               else
+                       lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
+               lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
+               if ((outer || normal) && !nextpars_depth.empty()) {
+                       // restore nesting of following paragraphs
+                       DocIterator scur = cur;
+                       depth_type max_depth = cur.paragraph().params().depth() + 1;
+                       for (auto nextpar_depth : nextpars_depth) {
+                               cur.forwardPar();
+                               while (cur.paragraph().params().depth() < min(nextpar_depth, max_depth)) {
+                                       depth_type const olddepth = cur.paragraph().params().depth();
+                                       lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
+                                       if (olddepth == cur.paragraph().params().depth())
+                                               // leave loop if no incrementation happens
+                                               break;
+                               }
+                               max_depth = cur.paragraph().params().depth() + 1;
+                       }
+                       cur.setCursor(scur);
+               }
+
+               break;
+       }
+
+       case LFUN_CLIPBOARD_PASTE:
+               cap::replaceSelection(cur);
+               pasteClipboardText(cur, bv->buffer().errorList("Paste"),
+                              cmd.argument() == "paragraph");
+               bv->buffer().errors("Paste");
+               break;
+
+       case LFUN_CLIPBOARD_PASTE_SIMPLE:
+               cap::replaceSelection(cur);
+               pasteSimpleText(cur, cmd.argument() == "paragraph");
+               break;
+
+       case LFUN_PRIMARY_SELECTION_PASTE:
+               cap::replaceSelection(cur);
+               pasteString(cur, theSelection().get(),
+                           cmd.argument() == "paragraph");
+               break;
+
+       case LFUN_SELECTION_PASTE:
+               // Copy the selection buffer to the clipboard stack,
+               // because we want it to appear in the "Edit->Paste
+               // recent" menu.
+               cap::replaceSelection(cur);
+               cap::copySelectionToStack();
+               cap::pasteSelection(bv->cursor(), bv->buffer().errorList("Paste"));
+               bv->buffer().errors("Paste");
+               break;
+
+       case LFUN_QUOTE_INSERT: {
+               cap::replaceSelection(cur);
+               cur.recordUndo();
+
+               Paragraph const & par = cur.paragraph();
+               pos_type pos = cur.pos();
+               // Ignore deleted text before cursor
+               while (pos > 0 && par.isDeleted(pos - 1))
+                       --pos;
+
+               bool const inner = (cmd.getArg(0) == "single" || cmd.getArg(0) == "inner");
+
+               // Guess quote side.
+               // A space triggers an opening quote. This is passed if the preceding
+               // char/inset is a space or at paragraph start.
+               char_type c = ' ';
+               if (pos > 0 && !par.isSpace(pos - 1)) {
+                       if (cur.prevInset() && cur.prevInset()->lyxCode() == QUOTE_CODE) {
+                               // If an opening double quotation mark precedes, and this
+                               // is a single quote, make it opening as well
+                               InsetQuotes & ins =
+                                       static_cast<InsetQuotes &>(*cur.prevInset());
+                               string const type = ins.getType();
+                               if (!suffixIs(type, "ld") || !inner)
+                                       c = par.getChar(pos - 1);
+                       }
+                       else if (!cur.prevInset()
+                           || (cur.prevInset() && cur.prevInset()->isChar()))
+                               // If a char precedes, pass that and let InsetQuote decide
+                               c = par.getChar(pos - 1);
+                       else {
+                               while (pos > 0) {
+                                       if (par.getInset(pos - 1)
+                                           && !par.getInset(pos - 1)->isPartOfTextSequence()) {
+                                               // skip "invisible" insets
+                                               --pos;
+                                               continue;
+                                       }
+                                       c = par.getChar(pos - 1);
+                                       break;
+                               }
+                       }
+               }
+               QuoteLevel const quote_level = inner
+                               ? QuoteLevel::Secondary : QuoteLevel::Primary;
+               cur.insert(new InsetQuotes(cur.buffer(), c, quote_level, cmd.getArg(1), cmd.getArg(2)));
+               cur.buffer()->updateBuffer();
+               cur.posForward();
+               break;
+       }
+
+       case LFUN_MOUSE_TRIPLE:
+               if (cmd.button() == mouse_button::button1) {
+                       if (cur.pos() > 0)
+                               setCursor(cur, cur.pit(), 0);
+                       bv->cursor() = cur;
+                       cur.resetAnchor();
+                       if (cur.pos() < cur.lastpos())
+                               setCursor(cur, cur.pit(), cur.lastpos());
+                       cur.setSelection();
+                       bv->cursor() = cur;
+               }
+               break;
+
+       case LFUN_MOUSE_DOUBLE:
+               if (cmd.button() == mouse_button::button1) {
+                       selectWord(cur, WHOLE_WORD);
+                       bv->cursor() = cur;
+               }
+               break;
+
+       // Single-click on work area
+       case LFUN_MOUSE_PRESS: {
+               // We are not marking a selection with the keyboard in any case.
+               Cursor & bvcur = cur.bv().cursor();
+               bvcur.setMark(false);
+               switch (cmd.button()) {
+               case mouse_button::button1:
+                       if (!bvcur.selection())
+                               // Set the cursor
+                               bvcur.resetAnchor();
+                       if (!bv->mouseSetCursor(cur, cmd.modifier() == ShiftModifier))
+                               cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
+                       // FIXME: move this to mouseSetCursor?
+                       if (bvcur.wordSelection() && bvcur.inTexted())
+                               expandWordSel(bvcur);
+                       break;
+
+               case mouse_button::button2:
+                       if (lyxrc.mouse_middlebutton_paste) {
+                               // Middle mouse pasting.
+                               bv->mouseSetCursor(cur);
+                               lyx::dispatch(
+                                       FuncRequest(LFUN_COMMAND_ALTERNATIVES,
+                                                   "selection-paste ; primary-selection-paste paragraph"));
+                       }
+                       cur.noScreenUpdate();
+                       break;
+
+               case mouse_button::button3: {
+                       // Don't do anything if we right-click a
+                       // selection, a context menu will popup.
+                       if (bvcur.selection() && cur >= bvcur.selectionBegin()
+                           && cur <= bvcur.selectionEnd()) {
+                               cur.noScreenUpdate();
+                               return;
+                       }
+                       if (!bv->mouseSetCursor(cur, false))
+                               cur.screenUpdateFlags(Update::FitCursor);
+                       break;
+               }
+
+               default:
+                       break;
+               } // switch (cmd.button())
+               break;
+       }
+       case LFUN_MOUSE_MOTION: {
+               // Mouse motion with right or middle mouse do nothing for now.
+               if (cmd.button() != mouse_button::button1) {
+                       cur.noScreenUpdate();
+                       return;
+               }
+               // ignore motions deeper nested than the real anchor
+               Cursor & bvcur = cur.bv().cursor();
+               if (!bvcur.realAnchor().hasPart(cur)) {
+                       cur.undispatched();
+                       break;
+               }
+               CursorSlice old = bvcur.top();
+
+               int const wh = bv->workHeight();
+               int const y = max(0, min(wh - 1, cmd.y()));
+
+               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)
+                       lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
+               // This is to allow jumping over large insets
+               if (cur.top() == old) {
+                       if (cmd.y() >= wh)
+                               lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
+                       else if (cmd.y() < 0)
+                               lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
+               }
+               // We continue with our existing selection or start a new one, so don't
+               // reset the anchor.
+               bvcur.setCursor(cur);
+               if (bvcur.wordSelection() && bvcur.inTexted())
+                       expandWordSel(bvcur);
+               bvcur.selection(true);
+               bvcur.setCurrentFont();
+               if (cur.top() == old) {
+                       // We didn't move one iota, so no need to update the screen.
+                       cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
+                       //cur.noScreenUpdate();
+                       return;
+               }
+               break;
+       }
+
+       case LFUN_MOUSE_RELEASE:
+               switch (cmd.button()) {
+               case mouse_button::button1:
+                       // Cursor was set at LFUN_MOUSE_PRESS or LFUN_MOUSE_MOTION time.
+                       // If there is a new selection, update persistent selection;
+                       // otherwise, single click does not clear persistent selection
+                       // buffer.
+                       if (cur.selection()) {
+                               // Finish selection. If double click,
+                               // cur is moved to the end of word by
+                               // selectWord but bvcur is current
+                               // mouse position.
+                               cur.bv().cursor().setSelection();
+                               // We might have removed an empty but drawn selection
+                               // (probably a margin)
+                               cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
+                       } else
+                               cur.noScreenUpdate();
+                       // FIXME: We could try to handle drag and drop of selection here.
+                       return;
+
+               case mouse_button::button2:
+                       // Middle mouse pasting is handled at mouse press time,
+                       // see LFUN_MOUSE_PRESS.
+                       cur.noScreenUpdate();
+                       return;
+
+               case mouse_button::button3:
+                       // Cursor was set at LFUN_MOUSE_PRESS time.
+                       // FIXME: If there is a selection we could try to handle a special
+                       // drag & drop context menu.
+                       cur.noScreenUpdate();
+                       return;
+
+               case mouse_button::none:
+               case mouse_button::button4:
+               case mouse_button::button5:
+                       break;
+               } // switch (cmd.button())
+
+               break;
+
+       case LFUN_SELF_INSERT: {
+               if (cmd.argument().empty())
+                       break;
+
+               // Automatically delete the currently selected
+               // text and replace it with what is being
+               // typed in now. Depends on lyxrc settings
+               // "auto_region_delete", which defaults to
+               // true (on).
+
+               if (lyxrc.auto_region_delete && cur.selection()) {
+                       cutSelection(cur, false);
+                       cur.setCurrentFont();
+               }
+               cur.clearSelection();
+
+               for (char_type c : cmd.argument())
+                       bv->translateAndInsert(c, this, cur);
+
+               cur.resetAnchor();
+               moveCursor(cur, false);
+               cur.markNewWordPosition();
+               bv->bookmarkEditPosition();
+               break;
+       }
+
+       case LFUN_HREF_INSERT: {
+               docstring content = cmd.argument();
+               if (content.empty() && cur.selection())
+                       content = cur.selectionAsString(false);
+
+               InsetCommandParams p(HYPERLINK_CODE);
+               if (!content.empty()){
+                       // if it looks like a link, we'll put it as target,
+                       // otherwise as name (bug #8792).
+
+                       // We can't do:
+                       //   regex_match(to_utf8(content), matches, link_re)
+                       // because smatch stores pointers to the substrings rather
+                       // than making copies of them. And those pointers become
+                       // invalid after regex_match returns, since it is then
+                       // being given a temporary object. (Thanks to Georg for
+                       // figuring that out.)
+                       regex const link_re("^(([a-z]+):|www\\.).*");
+                       smatch matches;
+                       string const c = to_utf8(lowercase(content));
+
+                       if (c.substr(0,7) == "mailto:") {
+                               p["target"] = content;
+                               p["type"] = from_ascii("mailto:");
+                       } else if (regex_match(c, matches, link_re)) {
+                               p["target"] = content;
+                               string protocol = matches.str(1);
+                               if (protocol == "file")
+                                       p["type"] = from_ascii("file:");
+                       } else
+                               p["name"] = content;
+               }
+               string const data = InsetCommand::params2string(p);
+
+               // we need to have a target. if we already have one, then
+               // that gets used at the default for the name, too, which
+               // is probably what is wanted.
+               if (p["target"].empty()) {
+                       bv->showDialog("href", data);
+               } else {
+                       FuncRequest fr(LFUN_INSET_INSERT, data);
+                       dispatch(cur, fr);
+               }
+               break;
+       }
+
+       case LFUN_LABEL_INSERT: {
+               InsetCommandParams p(LABEL_CODE);
+               // Try to generate a valid label
+               p["name"] = (cmd.argument().empty()) ?
+                       cur.getPossibleLabel() :
+                       cmd.argument();
+               string const data = InsetCommand::params2string(p);
+
+               if (cmd.argument().empty()) {
+                       bv->showDialog("label", data);
+               } else {
+                       FuncRequest fr(LFUN_INSET_INSERT, data);
+                       dispatch(cur, fr);
+               }
+               break;
+       }
+
+       case LFUN_INFO_INSERT: {
+               if (cmd.argument().empty()) {
+                       bv->showDialog("info", cur.current_font.language()->lang());
+               } else {
+                       Inset * inset;
+                       inset = createInset(cur.buffer(), cmd);
+                       if (!inset)
+                               break;
+                       cur.recordUndo();
+                       insertInset(cur, inset);
+                       cur.forceBufferUpdate();
+                       cur.posForward();
+               }
+               break;
+       }
+       case LFUN_CAPTION_INSERT:
+       case LFUN_FOOTNOTE_INSERT:
+       case LFUN_NOTE_INSERT:
+       case LFUN_BOX_INSERT:
+       case LFUN_BRANCH_INSERT:
+       case LFUN_PHANTOM_INSERT:
+       case LFUN_ERT_INSERT:
+       case LFUN_INDEXMACRO_INSERT:
+       case LFUN_LISTING_INSERT:
+       case LFUN_MARGINALNOTE_INSERT:
+       case LFUN_ARGUMENT_INSERT:
+       case LFUN_INDEX_INSERT:
+       case LFUN_PREVIEW_INSERT:
+       case LFUN_SCRIPT_INSERT:
+       case LFUN_IPA_INSERT: {
+               // Indexes reset font formatting (#11961)
+               bool const resetfont = cmd.action() == LFUN_INDEX_INSERT;
+               // Open the inset, and move the current selection
+               // inside it.
+               doInsertInset(cur, this, cmd, true, true, resetfont);
+               cur.posForward();
+               cur.setCurrentFont();
+               // Some insets are numbered, others are shown in the outline pane so
+               // let's update the labels and the toc backend.
+               cur.forceBufferUpdate();
+               break;
+       }
+
+       case LFUN_FLEX_INSERT: {
+               // Open the inset, and move the current selection
+               // inside it.
+               bool const sel = cur.selection();
+               doInsertInset(cur, this, cmd, true, true);
+               // Insert auto-insert arguments
+               bool autoargs = false, inautoarg = false;
+               Layout::LaTeXArgMap args = cur.inset().getLayout().args();
+               for (auto const & argt : args) {
+                       Layout::latexarg arg = argt.second;
+                       if (!inautoarg && arg.insertonnewline && cur.pos() > 0) {
+                               FuncRequest cmd2(LFUN_PARAGRAPH_BREAK);
+                               lyx::dispatch(cmd2);
+                       }
+                       if (arg.autoinsert) {
+                               // The cursor might have been invalidated by the replaceSelection.
+                               cur.buffer()->changed(true);
+                               // If we had already inserted an arg automatically,
+                               // leave this now in order to insert the next one.
+                               if (inautoarg) {
+                                       cur.leaveInset(cur.inset());
+                                       cur.setCurrentFont();
+                                       cur.posForward();
+                                       if (arg.insertonnewline && cur.pos() > 0) {
+                                               FuncRequest cmd2(LFUN_PARAGRAPH_BREAK);
+                                               lyx::dispatch(cmd2);
+                                       }
+                               }
+                               FuncRequest cmd2(LFUN_ARGUMENT_INSERT, argt.first);
+                               lyx::dispatch(cmd2);
+                               autoargs = true;
+                               inautoarg = true;
+                       }
+               }
+               if (!autoargs) {
+                       if (sel)
+                               cur.leaveInset(cur.inset());
+                       cur.posForward();
+               }
+               // Some insets are numbered, others are shown in the outline pane so
+               // let's update the labels and the toc backend.
+               cur.forceBufferUpdate();
+               break;
+       }
+
+       case LFUN_TABULAR_INSERT: {
+               // if there were no arguments, just open the dialog
+               if (cmd.argument().empty()) {
+                       bv->showDialog("tabularcreate");
+                       break;
+               } else if (cur.buffer()->masterParams().tablestyle != "default"
+                          || bv->buffer().params().documentClass().tablestyle() != "default") {
+                       string tabstyle = cur.buffer()->masterParams().tablestyle;
+                       if (tabstyle == "default")
+                               tabstyle = bv->buffer().params().documentClass().tablestyle();
+                       if (!libFileSearch("tabletemplates", tabstyle + ".lyx").empty()) {
+                               FuncRequest fr(LFUN_TABULAR_STYLE_INSERT,
+                                              tabstyle + " " + to_ascii(cmd.argument()));
+                               lyx::dispatch(fr);
+                               break;
+                       } else
+                               // Unknown style. Report and fall back to default.
+                               cur.errorMessage(from_utf8(N_("Table Style ")) + from_utf8(tabstyle) +
+                                                    from_utf8(N_(" not known")));
+               }
+               if (doInsertInset(cur, this, cmd, false, true))
+                       cur.posForward();
+               break;
+       }
+
+       case LFUN_TABULAR_STYLE_INSERT: {
+               string const style = cmd.getArg(0);
+               string const rows = cmd.getArg(1);
+               string const cols = cmd.getArg(2);
+               if (cols.empty() || !isStrInt(cols)
+                   || rows.empty() || !isStrInt(rows))
+                       break;
+               int const r = convert<int>(rows);
+               int const c = convert<int>(cols);
+
+               string suffix;
+               if (r == 1)
+                       suffix = "_1x1";
+               else if (r == 2)
+                       suffix = "_1x2";
+               FileName const tabstyle = libFileSearch("tabletemplates",
+                                                       style + suffix + ".lyx", "lyx");
+               if (tabstyle.empty())
+                           break;
+               UndoGroupHelper ugh(cur.buffer());
+               cur.recordUndo();
+               FuncRequest cmd2(LFUN_FILE_INSERT, tabstyle.absFileName() + " ignorelang");
+               lyx::dispatch(cmd2);
+               // go into table
+               cur.backwardPos();
+               if (r > 2) {
+                       // move one cell up to middle cell
+                       cur.up();
+                       // add the missing rows
+                       int const addrows = r - 3;
+                       for (int i = 0 ; i < addrows ; ++i) {
+                               FuncRequest fr(LFUN_TABULAR_FEATURE, "append-row");
+                               lyx::dispatch(fr);
+                       }
+               }
+               // add the missing columns
+               int const addcols = c - 1;
+               for (int i = 0 ; i < addcols ; ++i) {
+                       FuncRequest fr(LFUN_TABULAR_FEATURE, "append-column");
+                       lyx::dispatch(fr);
+               }
+               if (r > 1)
+                       // go to first cell
+                       cur.up();
+               break;
+       }
+
+       case LFUN_FLOAT_INSERT:
+       case LFUN_FLOAT_WIDE_INSERT:
+       case LFUN_WRAP_INSERT: {
+               // will some content be moved into the inset?
+               bool const content = cur.selection();
+               // does the content consist of multiple paragraphs?
+               bool const singlepar = (cur.selBegin().pit() == cur.selEnd().pit());
+
+               doInsertInset(cur, this, cmd, true, true);
+               cur.posForward();
+
+               // If some single-par content is moved into the inset,
+               // doInsertInset puts the cursor outside the inset.
+               // To insert the caption we put it back into the inset.
+               // FIXME cleanup doInsertInset to avoid such dances!
+               if (content && singlepar)
+                       cur.backwardPos();
+
+               ParagraphList & pars = cur.text()->paragraphs();
+
+               DocumentClass const & tclass = bv->buffer().params().documentClass();
+
+               // add a separate paragraph for the caption inset
+               pars.push_back(Paragraph());
+               pars.back().setInsetOwner(&cur.text()->inset());
+               pars.back().setPlainOrDefaultLayout(tclass);
+               int cap_pit = pars.size() - 1;
+
+               // if an empty inset was created, we create an additional empty
+               // paragraph at the bottom so that the user can choose where to put
+               // the graphics (or table).
+               if (!content) {
+                       pars.push_back(Paragraph());
+                       pars.back().setInsetOwner(&cur.text()->inset());
+                       pars.back().setPlainOrDefaultLayout(tclass);
+               }
+
+               // reposition the cursor to the caption
+               cur.pit() = cap_pit;
+               cur.pos() = 0;
+               // FIXME: This Text/Cursor dispatch handling is a mess!
+               // We cannot use Cursor::dispatch here it needs access to up to
+               // date metrics.
+               FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
+               doInsertInset(cur, cur.text(), cmd_caption, true, false);
+               cur.forceBufferUpdate();
+               cur.screenUpdateFlags(Update::Force);
+               // FIXME: When leaving the Float (or Wrap) inset we should
+               // delete any empty paragraph left above or below the
+               // caption.
+               break;
+       }
+
+       case LFUN_NOMENCL_INSERT: {
+               InsetCommandParams p(NOMENCL_CODE);
+               if (cmd.argument().empty()) {
+                       p["symbol"] =
+                               bv->cursor().innerText()->getStringForDialog(bv->cursor());
+                       cur.clearSelection();
+               } else
+                       p["symbol"] = cmd.argument();
+               string const data = InsetCommand::params2string(p);
+               bv->showDialog("nomenclature", data);
+               break;
+       }
+
+       case LFUN_INDEX_PRINT: {
+               InsetCommandParams p(INDEX_PRINT_CODE);
+               if (cmd.argument().empty())
+                       p["type"] = from_ascii("idx");
+               else
+                       p["type"] = cmd.argument();
+               string const data = InsetCommand::params2string(p);
+               FuncRequest fr(LFUN_INSET_INSERT, data);
+               dispatch(cur, fr);
+               break;
+       }
+
+       case LFUN_NOMENCL_PRINT:
+       case LFUN_NEWPAGE_INSERT:
+               // do nothing fancy
+               doInsertInset(cur, this, cmd, false, false);
+               cur.posForward();
+               break;
+
+       case LFUN_SEPARATOR_INSERT: {
+               doInsertInset(cur, this, cmd, false, false);
+               cur.posForward();
+               // remove a following space
+               Paragraph & par = cur.paragraph();
+               if (cur.pos() != cur.lastpos() && par.isLineSeparator(cur.pos()))
+                   par.eraseChar(cur.pos(), cur.buffer()->params().track_changes);
+               break;
+       }
+
+       case LFUN_DEPTH_DECREMENT:
+               changeDepth(cur, DEC_DEPTH);
+               break;
+
+       case LFUN_DEPTH_INCREMENT:
+               changeDepth(cur, INC_DEPTH);
+               break;
+
+       case LFUN_REGEXP_MODE:
+               regexpDispatch(cur, cmd);
+               break;
+
+       case LFUN_MATH_MODE: {
+               if (cmd.argument() == "on" || cmd.argument() == "") {
+                       // don't pass "on" as argument
+                       // (it would appear literally in the first cell)
+                       docstring sel = cur.selectionAsString(false);
+                       InsetMathMacroTemplate * macro = new InsetMathMacroTemplate(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())
+                       cur.errorMessage(from_utf8(N_("Missing argument")));
+               else {
+                       cur.recordUndo();
+                       string s = to_utf8(cmd.argument());
+                       string const s1 = token(s, ' ', 1);
+                       int const nargs = s1.empty() ? 0 : convert<int>(s1);
+                       string const s2 = token(s, ' ', 2);
+                       MacroType type = MacroTypeNewcommand;
+                       if (s2 == "def")
+                               type = MacroTypeDef;
+                       InsetMathMacroTemplate * inset = new InsetMathMacroTemplate(cur.buffer(),
+                               from_utf8(token(s, ' ', 0)), nargs, false, type);
+                       inset->setBuffer(bv->buffer());
+                       insertInset(cur, inset);
+
+                       // enter macro inset and select the name
+                       cur.push(*inset);
+                       cur.top().pos() = cur.top().lastpos();
+                       cur.resetAnchor();
+                       cur.selection(true);
+                       cur.top().pos() = 0;
+               }
+               break;
+
+       case LFUN_MATH_DISPLAY:
+       case LFUN_MATH_SUBSCRIPT:
+       case LFUN_MATH_SUPERSCRIPT:
+       case LFUN_MATH_INSERT:
+       case LFUN_MATH_AMS_MATRIX:
+       case LFUN_MATH_MATRIX:
+       case LFUN_MATH_DELIM:
+       case LFUN_MATH_BIGDELIM:
+               mathDispatch(cur, cmd);
+               break;
+
+       case LFUN_FONT_EMPH: {
+               Font font(ignore_font, ignore_language);
+               font.fontInfo().setEmph(FONT_TOGGLE);
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
+       case LFUN_FONT_ITAL: {
+               Font font(ignore_font, ignore_language);
+               font.fontInfo().setShape(ITALIC_SHAPE);
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
+       case LFUN_FONT_BOLD:
+       case LFUN_FONT_BOLDSYMBOL: {
+               Font font(ignore_font, ignore_language);
+               font.fontInfo().setSeries(BOLD_SERIES);
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
+       case LFUN_FONT_NOUN: {
+               Font font(ignore_font, ignore_language);
+               font.fontInfo().setNoun(FONT_TOGGLE);
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
+       case LFUN_FONT_TYPEWRITER: {
+               Font font(ignore_font, ignore_language);
+               font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
+       case LFUN_FONT_SANS: {
+               Font font(ignore_font, ignore_language);
+               font.fontInfo().setFamily(SANS_FAMILY);
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
+       case LFUN_FONT_ROMAN: {
+               Font font(ignore_font, ignore_language);
+               font.fontInfo().setFamily(ROMAN_FAMILY);
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
+       case LFUN_FONT_DEFAULT: {
+               Font font(inherit_font, ignore_language);
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
+       case LFUN_FONT_STRIKEOUT: {
+               Font font(ignore_font, ignore_language);
+               font.fontInfo().setStrikeout(FONT_TOGGLE);
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
+       case LFUN_FONT_CROSSOUT: {
+               Font font(ignore_font, ignore_language);
+               font.fontInfo().setXout(FONT_TOGGLE);
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
+       case LFUN_FONT_UNDERUNDERLINE: {
+               Font font(ignore_font, ignore_language);
+               font.fontInfo().setUuline(FONT_TOGGLE);
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
+       case LFUN_FONT_UNDERWAVE: {
+               Font font(ignore_font, ignore_language);
+               font.fontInfo().setUwave(FONT_TOGGLE);
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
+       case LFUN_FONT_UNDERLINE: {
+               Font font(ignore_font, ignore_language);
+               font.fontInfo().setUnderbar(FONT_TOGGLE);
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
+       case LFUN_FONT_NO_SPELLCHECK: {
+               Font font(ignore_font, ignore_language);
+               font.fontInfo().setNoSpellcheck(FONT_TOGGLE);
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
+       case LFUN_FONT_SIZE: {
+               Font font(ignore_font, ignore_language);
+               setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
+       case LFUN_LANGUAGE: {
+               string const lang_arg = cmd.getArg(0);
+               bool const reset = (lang_arg.empty() || lang_arg == "reset");
+               Language const * lang =
+                       reset ? cur.bv().buffer().params().language
+                             : languages.getLanguage(lang_arg);
+               // we allow reset_language, which is 0, but only if it
+               // was requested via empty or "reset" arg.
+               if (!lang && !reset)
+                       break;
+               bool const toggle = (cmd.getArg(1) != "set");
+               selectWordWhenUnderCursor(cur, WHOLE_WORD_STRICT);
+               Font font(ignore_font, lang);
+               toggleAndShow(cur, this, font, toggle);
+               break;
+       }
+
+       case LFUN_TEXTSTYLE_APPLY: {
+               unsigned int num = 0;
+               string const arg = to_utf8(cmd.argument());
+               // Argument?
+               if (!arg.empty()) {
+                       if (isStrUnsignedInt(arg)) {
+                               num = convert<uint>(arg);
+                               if (num >= freeFonts.size()) {
+                                       cur.message(_("Invalid argument (number exceeds stack size)!"));
+                                       break;
+                               }
+                       } else {
+                               cur.message(_("Invalid argument (must be a non-negative number)!"));
+                               break;
+                       }
+               }
+               toggleAndShow(cur, this, freeFonts[num].second, toggleall);
+               cur.message(bformat(_("Text properties applied: %1$s"), freeFonts[num].first));
+               break;
+       }
+
+       // Set the freefont using the contents of \param data dispatched from
+       // the frontends and apply it at the current cursor location.
+       case LFUN_TEXTSTYLE_UPDATE: {
+               Font font(ignore_font, ignore_language);
+               bool toggle;
+               if (font.fromString(to_utf8(cmd.argument()), toggle)) {
+                       docstring const props = font.stateText(&bv->buffer().params(), true);
+                       freeFonts.push(make_pair(props, font));
+                       toggleall = toggle;
+                       toggleAndShow(cur, this, font, toggleall);
+                       cur.message(bformat(_("Text properties applied: %1$s"), props));
+               } else
+                       LYXERR0("Invalid argument of textstyle-update");
+               break;
+       }
+
+       case LFUN_FINISHED_LEFT:
+               LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
+               // We're leaving an inset, going left. If the inset is LTR, we're
+               // leaving from the front, so we should not move (remain at --- but
+               // not in --- the inset). If the inset is RTL, move left, without
+               // entering the inset itself; i.e., move to after the inset.
+               if (cur.paragraph().getFontSettings(
+                               cur.bv().buffer().params(), cur.pos()).isRightToLeft())
+                       cursorVisLeft(cur, true);
+               break;
+
+       case LFUN_FINISHED_RIGHT:
+               LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
+               // We're leaving an inset, going right. If the inset is RTL, we're
+               // leaving from the front, so we should not move (remain at --- but
+               // not in --- the inset). If the inset is LTR, move right, without
+               // entering the inset itself; i.e., move to after the inset.
+               if (!cur.paragraph().getFontSettings(
+                               cur.bv().buffer().params(), cur.pos()).isRightToLeft())
+                       cursorVisRight(cur, true);
+               break;
+
+       case LFUN_FINISHED_BACKWARD:
+               LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
+               cur.setCurrentFont();
+               break;
+
+       case LFUN_FINISHED_FORWARD:
+               LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
+               ++cur.pos();
+               cur.setCurrentFont();
+               break;
+
+       case LFUN_LAYOUT_PARAGRAPH: {
+               string data;
+               params2string(cur.paragraph(), data);
+               data = "show\n" + data;
+               bv->showDialog("paragraph", data);
+               break;
+       }
+
+       case LFUN_PARAGRAPH_UPDATE: {
+               string data;
+               params2string(cur.paragraph(), data);
+
+               // Will the paragraph accept changes from the dialog?
+               bool const accept =
+                       cur.inset().allowParagraphCustomization(cur.idx());
+
+               data = "update " + convert<string>(accept) + '\n' + data;
+               bv->updateDialog("paragraph", data);
+               break;
+       }
+
+       case LFUN_ACCENT_UMLAUT:
+       case LFUN_ACCENT_CIRCUMFLEX:
+       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:
+       case LFUN_ACCENT_UNDERDOT:
+       case LFUN_ACCENT_UNDERBAR:
+       case LFUN_ACCENT_CARON:
+       case LFUN_ACCENT_BREVE:
+       case LFUN_ACCENT_TIE:
+       case LFUN_ACCENT_HUNGARIAN_UMLAUT:
+       case LFUN_ACCENT_CIRCLE:
+       case LFUN_ACCENT_OGONEK:
+               theApp()->handleKeyFunc(cmd.action());
+               if (!cmd.argument().empty())
+                       // FIXME: Are all these characters encoded in one byte in utf8?
+                       bv->translateAndInsert(cmd.argument()[0], this, cur);
+               cur.screenUpdateFlags(Update::FitCursor);
+               break;
+
+       case LFUN_FLOAT_LIST_INSERT: {
+               DocumentClass const & tclass = bv->buffer().params().documentClass();
+               if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
+                       cur.recordUndo();
+                       if (cur.selection())
+                               cutSelection(cur, false);
+                       breakParagraph(cur);
+
+                       if (cur.lastpos() != 0) {
+                               cursorBackward(cur);
+                               breakParagraph(cur);
+                       }
+
+                       docstring const laystr = cur.inset().usePlainLayout() ?
+                               tclass.plainLayoutName() :
+                               tclass.defaultLayoutName();
+                       setLayout(cur, laystr);
+                       ParagraphParameters p;
+                       // FIXME If this call were replaced with one to clearParagraphParams(),
+                       // then we could get rid of this method altogether.
+                       setParagraphs(cur, p);
+                       // FIXME This should be simplified when InsetFloatList takes a
+                       // Buffer in its constructor.
+                       InsetFloatList * ifl = new InsetFloatList(cur.buffer(), to_utf8(cmd.argument()));
+                       ifl->setBuffer(bv->buffer());
+                       insertInset(cur, ifl);
+                       cur.posForward();
+               } else {
+                       lyxerr << "Non-existent float type: "
+                              << to_utf8(cmd.argument()) << endl;
+               }
+               break;
+       }
+
+       case LFUN_CHANGE_ACCEPT: {
+               acceptOrRejectChanges(cur, ACCEPT);
+               break;
+       }
+
+       case LFUN_CHANGE_REJECT: {
+               acceptOrRejectChanges(cur, REJECT);
+               break;
+       }
+
+       case LFUN_THESAURUS_ENTRY: {
+               Language const * language = cur.getFont().language();
+               docstring arg = cmd.argument();
+               if (arg.empty()) {
+                       arg = cur.selectionAsString(false);
+                       // Too large. We unselect if needed and try to get
+                       // the first word in selection or under cursor
+                       if (arg.size() > 100 || arg.empty()) {
+                               if (cur.selection()) {
+                                       DocIterator selbeg = cur.selectionBegin();
+                                       cur.clearSelection();
+                                       setCursorIntern(cur, selbeg.pit(), selbeg.pos());
+                                       cur.screenUpdateFlags(Update::Force);
+                               }
+                               // Get word or selection
+                               selectWordWhenUnderCursor(cur, WHOLE_WORD);
+                               arg = cur.selectionAsString(false);
+                               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();
+                       }
+               }
+               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"
+                                         "Please refer to sec. 6.15.1 of the User's Guide for setup\n"
+                                         "instructions."));
+               }
+               bv->showDialog("thesaurus", to_utf8(arg));
+               break;
+       }
+
+       case LFUN_SPELLING_ADD: {
+               Language const * language = getLanguage(cur, cmd.getArg(1));
+               docstring word = from_utf8(cmd.getArg(0));
+               if (word.empty()) {
+                       word = cur.selectionAsString(false);
+                       // FIXME
+                       if (word.size() > 100 || word.empty()) {
+                               // Get word or selection
+                               selectWordWhenUnderCursor(cur, WHOLE_WORD);
+                               word = cur.selectionAsString(false);
+                       }
+               }
+               WordLangTuple wl(word, language);
+               theSpellChecker()->insert(wl);
+               break;
+       }
+
+       case LFUN_SPELLING_ADD_LOCAL: {
+               Language const * language = getLanguage(cur, cmd.getArg(1));
+               docstring word = from_utf8(cmd.getArg(0));
+               if (word.empty()) {
+                       word = cur.selectionAsString(false);
+                       if (word.size() > 100)
+                               break;
+                       if (word.empty()) {
+                               // Get word or selection
+                               selectWordWhenUnderCursor(cur, WHOLE_WORD);
+                               word = cur.selectionAsString(false);
+                       }
+               }
+               WordLangTuple wl(word, language);
+               if (!bv->buffer().params().spellignored(wl)) {
+                       cur.recordUndoBufferParams();
+                       bv->buffer().params().spellignore().push_back(wl);
+                       cur.recordUndo();
+                       // trigger re-check of whole buffer
+                       bv->buffer().requestSpellcheck();
+               }
+               break;
+       }
+
+       case LFUN_SPELLING_REMOVE_LOCAL: {
+               Language const * language = getLanguage(cur, cmd.getArg(1));
+               docstring word = from_utf8(cmd.getArg(0));
+               if (word.empty()) {
+                       word = cur.selectionAsString(false);
+                       if (word.size() > 100)
+                               break;
+                       if (word.empty()) {
+                               // Get word or selection
+                               selectWordWhenUnderCursor(cur, WHOLE_WORD);
+                               word = cur.selectionAsString(false);
+                       }
+               }
+               WordLangTuple wl(word, language);
+               bool has_item = false;
+               vector<WordLangTuple>::const_iterator it = bv->buffer().params().spellignore().begin();
+               for (; it != bv->buffer().params().spellignore().end(); ++it) {
+                       if (it->lang()->code() != wl.lang()->code())
+                               continue;
+                       if (it->word() == wl.word()) {
+                               has_item = true;
+                               break;
+                       }
+               }
+               if (has_item) {
+                       cur.recordUndoBufferParams();
+                       bv->buffer().params().spellignore().erase(it);
+                       cur.recordUndo();
+                       // trigger re-check of whole buffer
+                       bv->buffer().requestSpellcheck();
+               }
+               break;
+       }
+
+
+       case LFUN_SPELLING_IGNORE: {
+               Language const * language = getLanguage(cur, cmd.getArg(1));
+               docstring word = from_utf8(cmd.getArg(0));
+               if (word.empty()) {
+                       word = cur.selectionAsString(false);
+                       // FIXME
+                       if (word.size() > 100 || word.empty()) {
+                               // Get word or selection
+                               selectWordWhenUnderCursor(cur, WHOLE_WORD);
+                               word = cur.selectionAsString(false);
+                       }
+               }
+               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));
+               if (word.empty()) {
+                       word = cur.selectionAsString(false);
+                       // FIXME
+                       if (word.size() > 100 || word.empty()) {
+                               // Get word or selection
+                               selectWordWhenUnderCursor(cur, WHOLE_WORD);
+                               word = cur.selectionAsString(false);
+                       }
+               }
+               WordLangTuple wl(word, language);
+               theSpellChecker()->remove(wl);
+               break;
+       }
+
+       case LFUN_PARAGRAPH_PARAMS_APPLY: {
+               // Given data, an encoding of the ParagraphParameters
+               // generated in the Paragraph dialog, this function sets
+               // the current paragraph, or currently selected paragraphs,
+               // appropriately.
+               // NOTE: This function overrides all existing settings.
+               setParagraphs(cur, cmd.argument());
+               cur.message(_("Paragraph layout set"));
+               break;
+       }
+
+       case LFUN_PARAGRAPH_PARAMS: {
+               // Given data, an encoding of the ParagraphParameters as we'd
+               // find them in a LyX file, this function modifies the current paragraph,
+               // or currently selected paragraphs.
+               // NOTE: This function only modifies, and does not override, existing
+               // settings.
+               setParagraphs(cur, cmd.argument(), true);
+               cur.message(_("Paragraph layout set"));
+               break;
+       }
+
+       case LFUN_ESCAPE:
+               if (cur.selection()) {
+                       cur.selection(false);
+               } else {
+                       cur.undispatched();
+                       // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
+                       // correct, but I'm not 100% sure -- dov, 071019
+                       cmd = FuncRequest(LFUN_FINISHED_FORWARD);
+               }
+               break;
+
+       case LFUN_OUTLINE_UP: {
+               pos_type const opos = cur.pos();
+               outline(OutlineUp, cur, false);
+               setCursor(cur, cur.pit(), opos);
+               cur.forceBufferUpdate();
+               needsUpdate = true;
+               break;
+       }
+
+       case LFUN_OUTLINE_DOWN: {
+               pos_type const opos = cur.pos();
+               outline(OutlineDown, cur, false);
+               setCursor(cur, cur.pit(), opos);
+               cur.forceBufferUpdate();
+               needsUpdate = true;
+               break;
+       }
+
+       case LFUN_OUTLINE_IN:
+               outline(OutlineIn, cur, cmd.getArg(0) == "local");
+               cur.forceBufferUpdate();
+               needsUpdate = true;
+               break;
+
+       case LFUN_OUTLINE_OUT:
+               outline(OutlineOut, cur, cmd.getArg(0) == "local");
+               cur.forceBufferUpdate();
+               needsUpdate = true;
+               break;
+
+       case LFUN_SERVER_GET_STATISTICS: {
+               DocIterator from, to;
+               if (cur.selection()) {
+                       from = cur.selectionBegin();
+                       to = cur.selectionEnd();
+               } else {
+                       from = doc_iterator_begin(cur.buffer());
+                       to = doc_iterator_end(cur.buffer());
+               }
+
+               cur.buffer()->updateStatistics(from, to);
+               string const arg0 = cmd.getArg(0);
+               if (arg0 == "words") {
+                       cur.message(convert<docstring>(cur.buffer()->wordCount()));
+               } else if (arg0 == "chars") {
+                       cur.message(convert<docstring>(cur.buffer()->charCount(false)));
+               } else if (arg0 == "chars-space") {
+                       cur.message(convert<docstring>(cur.buffer()->charCount(true)));
+               } else {
+                       cur.message(convert<docstring>(cur.buffer()->wordCount()) + " "
+                       + convert<docstring>(cur.buffer()->charCount(false)) + " "
+                       + convert<docstring>(cur.buffer()->charCount(true)));
+               }
+               break;
+       }
+
+       default:
+               LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
+               cur.undispatched();
+               break;
+       }
+
+       needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
+
+       if (lyxrc.spellcheck_continuously && !needsUpdate) {
+               // Check for misspelled text
+               // The redraw is useful because of the painting of
+               // misspelled markers depends on the cursor position.
+               // Trigger a redraw for cursor moves inside misspelled text.
+               if (!cur.inTexted()) {
+                       // move from regular text to math
+                       needsUpdate = last_misspelled;
+               } else if (oldTopSlice != cur.top() || oldBoundary != cur.boundary()) {
+                       // move inside regular text
+                       needsUpdate = last_misspelled
+                               || cur.paragraph().isMisspelled(cur.pos(), true);
+               }
+       }
+
+       // FIXME: The cursor flag is reset two lines below
+       // so we need to check here if some of the LFUN did touch that.
+       // for now only Text::erase() and Text::backspace() do that.
+       // The plan is to verify all the LFUNs and then to remove this
+       // singleParUpdate boolean altogether.
+       if (cur.result().screenUpdate() & Update::Force) {
+               singleParUpdate = false;
+               needsUpdate = true;
+       }
+
+       // FIXME: the following code should go in favor of fine grained
+       // update flag treatment.
+       if (singleParUpdate) {
+               // Inserting characters does not change par height in general. So, try
+               // to update _only_ this paragraph. BufferView will detect if a full
+               // metrics update is needed anyway.
+               cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
+               return;
+       }
+       if (!needsUpdate
+           && &oldTopSlice.inset() == &cur.inset()
+           && oldTopSlice.idx() == cur.idx()
+           && !oldSelection // oldSelection is a backup of cur.selection() at the beginning of the function.
+           && !cur.selection())
+               // FIXME: it would be better if we could just do this
+               //
+               //if (cur.result().update() != Update::FitCursor)
+               //      cur.noScreenUpdate();
+               //
+               // But some LFUNs do not set Update::FitCursor when needed, so we
+               // do it for all. This is not very harmfull as FitCursor will provoke
+               // a full redraw only if needed but still, a proper review of all LFUN
+               // should be done and this needsUpdate boolean can then be removed.
+               cur.screenUpdateFlags(Update::FitCursor);
+       else
+               cur.screenUpdateFlags(Update::Force | Update::FitCursor);
+}
+
+
+bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
+                       FuncStatus & status) const
+{
+       LBUFERR(this == cur.text());
+
+       FontInfo const & fontinfo = cur.real_current_font.fontInfo();
+       bool enable = true;
+       bool allow_in_passthru = false;
+       InsetCode code = NO_CODE;
+
+       switch (cmd.action()) {
+
+       case LFUN_DEPTH_DECREMENT:
+               enable = changeDepthAllowed(cur, DEC_DEPTH);
+               break;
+
+       case LFUN_DEPTH_INCREMENT:
+               enable = changeDepthAllowed(cur, INC_DEPTH);
+               break;
+
+       case LFUN_APPENDIX:
+               // FIXME We really should not allow this to be put, e.g.,
+               // in a footnote, or in ERT. But it would make sense in a
+               // branch, so I'm not sure what to do.
+               status.setOnOff(cur.paragraph().params().startOfAppendix());
+               break;
+
+       case LFUN_DIALOG_SHOW_NEW_INSET:
+               if (cmd.argument() == "bibitem")
+                       code = BIBITEM_CODE;
+               else if (cmd.argument() == "bibtex") {
+                       code = BIBTEX_CODE;
+                       // not allowed in description items
+                       enable = !inDescriptionItem(cur);
+               }
+               else if (cmd.argument() == "box")
+                       code = BOX_CODE;
+               else if (cmd.argument() == "branch")
+                       code = BRANCH_CODE;
+               else if (cmd.argument() == "citation")
+                       code = CITE_CODE;
+               else if (cmd.argument() == "counter")
+                       code = COUNTER_CODE;
+               else if (cmd.argument() == "ert")
+                       code = ERT_CODE;
+               else if (cmd.argument() == "external")
+                       code = EXTERNAL_CODE;
+               else if (cmd.argument() == "float")
+                       code = FLOAT_CODE;
+               else if (cmd.argument() == "graphics")
+                       code = GRAPHICS_CODE;
+               else if (cmd.argument() == "href")
+                       code = HYPERLINK_CODE;
+               else if (cmd.argument() == "include")
+                       code = INCLUDE_CODE;
+               else if (cmd.argument() == "index")
+                       code = INDEX_CODE;
+               else if (cmd.argument() == "index_print")
+                       code = INDEX_PRINT_CODE;
+               else if (cmd.argument() == "listings")
+                       code = LISTINGS_CODE;
+               else if (cmd.argument() == "mathspace")
+                       code = MATH_HULL_CODE;
+               else if (cmd.argument() == "nomenclature")
+                       code = NOMENCL_CODE;
+               else if (cmd.argument() == "nomencl_print")
+                       code = NOMENCL_PRINT_CODE;
+               else if (cmd.argument() == "label")
+                       code = LABEL_CODE;
+               else if (cmd.argument() == "line")
+                       code = LINE_CODE;
+               else if (cmd.argument() == "note")
+                       code = NOTE_CODE;
+               else if (cmd.argument() == "phantom")
+                       code = PHANTOM_CODE;
+               else if (cmd.argument() == "ref")
+                       code = REF_CODE;
+               else if (cmd.argument() == "space")
+                       code = SPACE_CODE;
+               else if (cmd.argument() == "toc")
+                       code = TOC_CODE;
+               else if (cmd.argument() == "vspace")
+                       code = VSPACE_CODE;
+               else if (cmd.argument() == "wrap")
+                       code = WRAP_CODE;
+               break;
+
+       case LFUN_ERT_INSERT:
+               code = ERT_CODE;
+               break;
+       case LFUN_LISTING_INSERT:
+               code = LISTINGS_CODE;
+               // not allowed in description items
+               enable = !inDescriptionItem(cur);
+               break;
+       case LFUN_FOOTNOTE_INSERT:
+               code = FOOT_CODE;
+               break;
+       case LFUN_TABULAR_INSERT:
+               code = TABULAR_CODE;
+               break;
+       case LFUN_TABULAR_STYLE_INSERT:
+               code = TABULAR_CODE;
+               break;
+       case LFUN_MARGINALNOTE_INSERT:
+               code = MARGIN_CODE;
+               break;
+       case LFUN_FLOAT_INSERT:
+       case LFUN_FLOAT_WIDE_INSERT:
+               // FIXME: If there is a selection, we should check whether there
+               // are floats in the selection, but this has performance issues, see
+               // LFUN_CHANGE_ACCEPT/REJECT.
+               code = FLOAT_CODE;
+               if (inDescriptionItem(cur))
+                       // not allowed in description items
+                       enable = false;
+               else {
+                       InsetCode const inset_code = cur.inset().lyxCode();
+
+                       // algorithm floats cannot be put in another float
+                       if (to_utf8(cmd.argument()) == "algorithm") {
+                               enable = inset_code != WRAP_CODE && inset_code != FLOAT_CODE;
+                               break;
+                       }
+
+                       // for figures and tables: only allow in another
+                       // float or wrap if it is of the same type and
+                       // not a subfloat already
+                       if(cur.inset().lyxCode() == code) {
+                               InsetFloat const & ins =
+                                       static_cast<InsetFloat const &>(cur.inset());
+                               enable = ins.params().type == to_utf8(cmd.argument())
+                                       && !ins.params().subfloat;
+                       } else if(cur.inset().lyxCode() == WRAP_CODE) {
+                               InsetWrap const & ins =
+                                       static_cast<InsetWrap const &>(cur.inset());
+                               enable = ins.params().type == to_utf8(cmd.argument());
+                       }
+               }
+               break;
+       case LFUN_WRAP_INSERT:
+               code = WRAP_CODE;
+               // not allowed in description items
+               enable = !inDescriptionItem(cur);
+               break;
+       case LFUN_FLOAT_LIST_INSERT: {
+               code = FLOAT_LIST_CODE;
+               // not allowed in description items
+               enable = !inDescriptionItem(cur);
+               if (enable) {
+                       FloatList const & floats = cur.buffer()->params().documentClass().floats();
+                       FloatList::const_iterator cit = floats[to_ascii(cmd.argument())];
+                       // make sure we know about such floats
+                       if (cit == floats.end() ||
+                                       // and that we know how to generate a list of them
+                           (!cit->second.usesFloatPkg() && cit->second.listCommand().empty())) {
+                               status.setUnknown(true);
+                               // probably not necessary, but...
+                               enable = false;
+                       }
+               }
+               break;
+       }
+       case LFUN_CAPTION_INSERT: {
+               code = CAPTION_CODE;
+               string arg = cmd.getArg(0);
+               bool varia = arg != "Unnumbered"
+                       && cur.inset().allowsCaptionVariation(arg);
+               // not allowed in description items,
+               // and in specific insets
+               enable = !inDescriptionItem(cur)
+                       && (varia || arg.empty() || arg == "Standard");
+               break;
+       }
+       case LFUN_NOTE_INSERT:
+               code = NOTE_CODE;
+               break;
+       case LFUN_FLEX_INSERT: {
+               code = FLEX_CODE;
+               docstring s = from_utf8(cmd.getArg(0));
+               // Prepend "Flex:" prefix if not there
+               if (!prefixIs(s, from_ascii("Flex:")))
+                       s = from_ascii("Flex:") + s;
+               if (!cur.buffer()->params().documentClass().hasInsetLayout(s))
+                       enable = false;
+               else if (!cur.paragraph().allowedInContext(cur, cur.buffer()->params().documentClass().insetLayout(s)))
+                       enable = false;
+               else {
+                       InsetLyXType ilt =
+                               cur.buffer()->params().documentClass().insetLayout(s).lyxtype();
+                       if (ilt != InsetLyXType::CHARSTYLE
+                           && ilt != InsetLyXType::CUSTOM
+                           && ilt != InsetLyXType::STANDARD)
+                               enable = false;
+               }
+               break;
+       }
+       case LFUN_BOX_INSERT:
+               code = BOX_CODE;
+               break;
+       case LFUN_BRANCH_INSERT:
+               code = BRANCH_CODE;
+               if (cur.buffer()->masterBuffer()->params().branchlist().empty()
+                   && cur.buffer()->params().branchlist().empty())
+                       enable = false;
+               break;
+       case LFUN_IPA_INSERT:
+               code = IPA_CODE;
+               break;
+       case LFUN_PHANTOM_INSERT:
+               code = PHANTOM_CODE;
+               break;
+       case LFUN_LABEL_INSERT:
+               code = LABEL_CODE;
+               break;
+       case LFUN_INFO_INSERT:
+               code = INFO_CODE;
+               enable = cmd.argument().empty()
+                       || infoparams.validateArgument(cur.buffer(), cmd.argument(), true);
+               break;
+       case LFUN_ARGUMENT_INSERT: {
+               code = ARG_CODE;
+               allow_in_passthru = true;
+               string const arg = cmd.getArg(0);
+               if (arg.empty()) {
+                       enable = false;
+                       break;
+               }
+               Layout const & lay = cur.paragraph().layout();
+               Layout::LaTeXArgMap args = lay.args();
+               Layout::LaTeXArgMap::const_iterator const lait =
+                               args.find(arg);
+               if (lait != args.end()) {
+                       enable = true;
+                       pit_type pit = cur.pit();
+                       pit_type lastpit = cur.pit();
+                       if (lay.isEnvironment() && !prefixIs(arg, "item:")) {
+                               // In a sequence of "merged" environment layouts, we only allow
+                               // non-item arguments once.
+                               lastpit = cur.lastpit();
+                               // get the first paragraph in sequence with this layout
+                               depth_type const current_depth = cur.paragraph().params().depth();
+                               while (true) {
+                                       if (pit == 0)
+                                               break;
+                                       Paragraph cpar = pars_[pit - 1];
+                                       if (cpar.layout() == lay && cpar.params().depth() == current_depth)
+                                               --pit;
+                                       else
+                                               break;
+                               }
+                       }
+                       for (; pit <= lastpit; ++pit) {
+                               if (pars_[pit].layout() != lay)
+                                       break;
+                               for (auto const & table : pars_[pit].insetList())
+                                       if (InsetArgument const * ins = table.inset->asInsetArgument())
+                                               if (ins->name() == arg) {
+                                                       // we have this already
+                                                       enable = false;
+                                                       break;
+                                               }
+                       }
+               } else
+                       enable = false;
+               break;
+       }
+       case LFUN_INDEX_INSERT:
+               code = INDEX_CODE;
+               break;
+       case LFUN_INDEX_PRINT:
+               code = INDEX_PRINT_CODE;
+               // not allowed in description items
+               enable = !inDescriptionItem(cur);
+               break;
+       case LFUN_NOMENCL_INSERT:
+               if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
+                       enable = false;
+                       break;
+               }
+               code = NOMENCL_CODE;
+               break;
+       case LFUN_NOMENCL_PRINT:
+               code = NOMENCL_PRINT_CODE;
+               // not allowed in description items
+               enable = !inDescriptionItem(cur);
+               break;
+       case LFUN_HREF_INSERT:
+               if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
+                       enable = false;
+                       break;
+               }
+               code = HYPERLINK_CODE;
+               break;
+       case LFUN_INDEXMACRO_INSERT: {
+               string const arg = cmd.getArg(0);
+               if (arg == "sortkey")
+                       code = INDEXMACRO_SORTKEY_CODE;
+               else
+                       code = INDEXMACRO_CODE;
+               break;
+       }
+       case LFUN_IPAMACRO_INSERT: {
+               string const arg = cmd.getArg(0);
+               if (arg == "deco")
+                       code = IPADECO_CODE;
+               else
+                       code = IPACHAR_CODE;
+               break;
+       }
+       case LFUN_QUOTE_INSERT:
+               // always allow this, since we will inset a raw quote
+               // if an inset is not allowed.
+               allow_in_passthru = true;
+               break;
+       case LFUN_SPECIALCHAR_INSERT:
+               code = SPECIALCHAR_CODE;
+               break;
+       case LFUN_SPACE_INSERT:
+               // slight hack: we know this is allowed in math mode
+               if (cur.inTexted())
+                       code = SPACE_CODE;
+               break;
+       case LFUN_PREVIEW_INSERT:
+               code = PREVIEW_CODE;
+               break;
+       case LFUN_SCRIPT_INSERT:
+               code = SCRIPT_CODE;
+               break;
+
+       case LFUN_MATH_INSERT:
+       case LFUN_MATH_AMS_MATRIX:
+       case LFUN_MATH_MATRIX:
+       case LFUN_MATH_DELIM:
+       case LFUN_MATH_BIGDELIM:
+       case LFUN_MATH_DISPLAY:
+       case LFUN_MATH_MODE:
+       case LFUN_MATH_MACRO:
+       case LFUN_MATH_SUBSCRIPT:
+       case LFUN_MATH_SUPERSCRIPT:
+               code = MATH_HULL_CODE;
+               break;
+
+       case LFUN_REGEXP_MODE:
+               code = MATH_HULL_CODE;
+               enable = cur.buffer()->isInternal() && !cur.inRegexped();
+               break;
+
+       case LFUN_INSET_MODIFY:
+               // We need to disable this, because we may get called for a
+               // tabular cell via
+               // InsetTabular::getStatus() -> InsetText::getStatus()
+               // and we don't handle LFUN_INSET_MODIFY.
+               enable = false;
+               break;
+
+       case LFUN_FONT_EMPH:
+               status.setOnOff(fontinfo.emph() == FONT_ON);
+               enable = !cur.paragraph().isPassThru();
+               break;
+
+       case LFUN_FONT_ITAL:
+               status.setOnOff(fontinfo.shape() == ITALIC_SHAPE);
+               enable = !cur.paragraph().isPassThru();
+               break;
+
+       case LFUN_FONT_NOUN:
+               status.setOnOff(fontinfo.noun() == FONT_ON);
+               enable = !cur.paragraph().isPassThru();
+               break;
+
+       case LFUN_FONT_BOLD:
+       case LFUN_FONT_BOLDSYMBOL:
+               status.setOnOff(fontinfo.series() == BOLD_SERIES);
+               enable = !cur.paragraph().isPassThru();
+               break;
+
+       case LFUN_FONT_SANS:
+               status.setOnOff(fontinfo.family() == SANS_FAMILY);
+               enable = !cur.paragraph().isPassThru();
+               break;
+
+       case LFUN_FONT_ROMAN:
+               status.setOnOff(fontinfo.family() == ROMAN_FAMILY);
+               enable = !cur.paragraph().isPassThru();
+               break;
+
+       case LFUN_FONT_TYPEWRITER:
+               status.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
+               enable = !cur.paragraph().isPassThru();
+               break;
+
+       case LFUN_CUT:
+               enable = cur.selection();
+               break;
+
+       case LFUN_PASTE: {
+               if (cmd.argument().empty()) {
+                       if (theClipboard().isInternal())
+                               enable = cap::numberOfSelections() > 0;
+                       else
+                               enable = !theClipboard().empty();
+                       break;
+               }
+
+               // we have an argument
+               string const arg = to_utf8(cmd.argument());
+               if (isStrUnsignedInt(arg)) {
+                       // it's a number and therefore means the internal stack
+                       unsigned int n = convert<unsigned int>(arg);
+                       enable = cap::numberOfSelections() > n;
+                       break;
+               }
+
+               // explicit text type?
+               if (arg == "html") {
+                       // Do not enable for PlainTextType, since some tidying in the
+                       // frontend is needed for HTML, which is too unsafe for plain text.
+                       enable = theClipboard().hasTextContents(Clipboard::HtmlTextType);
+                       break;
+               } else if (arg == "latex") {
+                       // LaTeX is usually not available on the clipboard with
+                       // the correct MIME type, but in plain text.
+                       enable = theClipboard().hasTextContents(Clipboard::PlainTextType) ||
+                                theClipboard().hasTextContents(Clipboard::LaTeXTextType);
+                       break;
+               }
+
+               Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
+               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;
+               }
+               enable = theClipboard().hasGraphicsContents(type);
+               break;
+       }
+
+       case LFUN_CLIPBOARD_PASTE:
+       case LFUN_CLIPBOARD_PASTE_SIMPLE:
+               enable = !theClipboard().empty();
+               break;
+
+       case LFUN_PRIMARY_SELECTION_PASTE:
+               status.setUnknown(!theSelection().supported());
+               enable = cur.selection() || !theSelection().empty();
+               break;
+
+       case LFUN_SELECTION_PASTE:
+               enable = cap::selection();
+               break;
+
+       case LFUN_PARAGRAPH_MOVE_UP:
+               enable = cur.pit() > 0 && !cur.selection();
+               break;
+
+       case LFUN_PARAGRAPH_MOVE_DOWN:
+               enable = cur.pit() < cur.lastpit() && !cur.selection();
+               break;
+
+       case LFUN_CHANGE_ACCEPT:
+       case LFUN_CHANGE_REJECT:
+               if (!cur.selection())
+                       enable = cur.paragraph().isChanged(cur.pos());
+               else {
+                       // will enable if there is a change in the selection
+                       enable = false;
+
+                       // cheap improvement for efficiency: using cached
+                       // buffer variable, if there is no change in the
+                       // document, no need to check further.
+                       if (!cur.buffer()->areChangesPresent())
+                               break;
+
+                       for (DocIterator it = cur.selectionBegin(); ; it.forwardPar()) {
+                               pos_type const beg = it.pos();
+                               pos_type end;
+                               bool const in_last_par = (it.pit() == cur.selectionEnd().pit() &&
+                                                         it.idx() == cur.selectionEnd().idx());
+                               if (in_last_par)
+                                       end = cur.selectionEnd().pos();
+                               else
+                                       // the +1 is needed for cases, e.g., where there is a
+                                       // paragraph break. See #11629.
+                                       end = it.lastpos() + 1;
+                               if (beg != end && it.paragraph().isChanged(beg, end)) {
+                                       enable = true;
+                                       break;
+                               }
+                               if (beg != end && it.paragraph().hasChangedInsets(beg, end)) {
+                                       enable = true;
+                                       break;
+                               }
+                               if (in_last_par)
+                                       break;
+                       }
+               }
+               break;
+
+       case LFUN_OUTLINE_UP:
+       case LFUN_OUTLINE_DOWN:
+       case LFUN_OUTLINE_IN:
+       case LFUN_OUTLINE_OUT:
+               enable = cur.text()->getTocLevel(cur.pit()) != Layout::NOT_IN_TOC;
+               break;
+
+       case LFUN_NEWLINE_INSERT:
+               // LaTeX restrictions (labels or empty par)
+               enable = !cur.paragraph().isPassThru()
+                       && cur.pos() > cur.paragraph().beginOfBody();
+               break;
+
+       case LFUN_SEPARATOR_INSERT:
+               // Always enabled for now
+               enable = true;
+               break;
+
+       case LFUN_TAB_INSERT:
+       case LFUN_TAB_DELETE:
+               enable = cur.paragraph().isPassThru();
+               break;
+
+       case LFUN_GRAPHICS_SET_GROUP: {
+               InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
+               if (!ins)
+                       enable = false;
+               else
+                       status.setOnOff(to_utf8(cmd.argument()) == ins->getParams().groupId);
+               break;
+       }
+
+       case LFUN_NEWPAGE_INSERT:
+               // not allowed in description items
+               code = NEWPAGE_CODE;
+               enable = !inDescriptionItem(cur);
+               break;
+
+       case LFUN_LANGUAGE:
+               enable = !cur.paragraph().isPassThru();
+               status.setOnOff(cmd.getArg(0) == cur.real_current_font.language()->lang());
+               break;
+
+       case LFUN_PARAGRAPH_BREAK:
+               enable = inset().allowMultiPar();
+               break;
+
+       case LFUN_SPELLING_ADD:
+       case LFUN_SPELLING_ADD_LOCAL:
+       case LFUN_SPELLING_REMOVE_LOCAL:
+       case LFUN_SPELLING_IGNORE:
+       case LFUN_SPELLING_REMOVE:
+               enable = theSpellChecker() != nullptr;
+               if (enable && !cmd.getArg(1).empty()) {
+                       // validate explicitly given language
+                       Language const * const lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
+                       enable &= lang != nullptr;
+               }
+               break;
+
+       case LFUN_LAYOUT:
+       case LFUN_LAYOUT_TOGGLE: {
+               bool const ignoreautonests = cmd.getArg(1) == "ignoreautonests";
+               docstring const req_layout = ignoreautonests ? from_utf8(cmd.getArg(0)) : cmd.argument();
+               docstring const layout = resolveLayout(req_layout, cur);
+
+               // FIXME: make this work in multicell selection case
+               enable = !owner_->forcePlainLayout() && !layout.empty() && !cur.selIsMultiCell();
+               status.setOnOff(!owner_->forcePlainLayout() && !cur.selIsMultiCell()
+                               && isAlreadyLayout(layout, cur));
+               break;
+       }
+
+       case LFUN_ENVIRONMENT_SPLIT: {
+               if (cmd.argument() == "outer") {
+                       // check if we have an environment in our nesting hierarchy
+                       bool res = false;
+                       depth_type const current_depth = cur.paragraph().params().depth();
+                       pit_type pit = cur.pit();
+                       Paragraph cpar = pars_[pit];
+                       while (true) {
+                               if (pit == 0 || cpar.params().depth() == 0)
+                                       break;
+                               --pit;
+                               cpar = pars_[pit];
+                               if (cpar.params().depth() < current_depth)
+                                       res = cpar.layout().isEnvironment();
+                       }
+                       enable = res;
+                       break;
+               }
+               else if (cmd.argument() == "previous") {
+                       // look if we have an environment in the previous par
+                       pit_type pit = cur.pit();
+                       Paragraph cpar = pars_[pit];
+                       if (pit > 0) {
+                               --pit;
+                               cpar = pars_[pit];
+                               enable = cpar.layout().isEnvironment();
+                               break;
+                       }
+                       enable = false;
+                       break;
+               }
+               else if (cur.paragraph().layout().isEnvironment()) {
+                       enable = cmd.argument() == "before"
+                               || cur.pos() > 0 || !isFirstInSequence(cur.pit());
+                       break;
+               }
+               enable = false;
+               break;
+       }
+
+       case LFUN_LAYOUT_PARAGRAPH:
+       case LFUN_PARAGRAPH_PARAMS:
+       case LFUN_PARAGRAPH_PARAMS_APPLY:
+       case LFUN_PARAGRAPH_UPDATE:
+               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:
+       case LFUN_ACCENT_CEDILLA:
+       case LFUN_ACCENT_CIRCLE:
+       case LFUN_ACCENT_CIRCUMFLEX:
+       case LFUN_ACCENT_DOT:
+       case LFUN_ACCENT_GRAVE:
+       case LFUN_ACCENT_HUNGARIAN_UMLAUT:
+       case LFUN_ACCENT_MACRON:
+       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:
+       case LFUN_FONT_FRAK:
+       case LFUN_FONT_SIZE:
+       case LFUN_FONT_STATE:
+       case LFUN_FONT_UNDERLINE:
+       case LFUN_FONT_STRIKEOUT:
+       case LFUN_FONT_CROSSOUT:
+       case LFUN_FONT_UNDERUNDERLINE:
+       case LFUN_FONT_UNDERWAVE:
+       case LFUN_FONT_NO_SPELLCHECK:
+       case LFUN_TEXTSTYLE_UPDATE:
+               enable = !cur.paragraph().isPassThru();
+               break;
+
+       case LFUN_FONT_DEFAULT: {
+               Font font(inherit_font, ignore_language);
+               BufferParams const & bp = cur.buffer()->masterParams();
+               if (cur.selection()) {
+                       enable = false;
+                       // Check if we have a non-default font attribute
+                       // in the selection range.
+                       DocIterator const from = cur.selectionBegin();
+                       DocIterator const to = cur.selectionEnd();
+                       for (DocIterator dit = from ; dit != to && !dit.atEnd(); ) {
+                               if (!dit.inTexted()) {
+                                       dit.forwardPos();
+                                       continue;
+                               }
+                               Paragraph const & par = dit.paragraph();
+                               pos_type const pos = dit.pos();
+                               Font tmp = par.getFontSettings(bp, pos);
+                               if (tmp.fontInfo() != font.fontInfo()
+                                   || tmp.language() != bp.language) {
+                                       enable = true;
+                                       break;
+                               }
+                               dit.forwardPos();
+                       }
+                       break;
+               }
+               // Disable if all is default already.
+               enable = (cur.current_font.fontInfo() != font.fontInfo()
+                         || cur.current_font.language() != bp.language);
+               break;
+       }
+
+       case LFUN_TEXTSTYLE_APPLY:
+               enable = !freeFonts.empty();
+               break;
+
+       case LFUN_WORD_DELETE_FORWARD:
+       case LFUN_WORD_DELETE_BACKWARD:
+       case LFUN_LINE_DELETE_FORWARD:
+       case LFUN_WORD_FORWARD:
+       case LFUN_WORD_BACKWARD:
+       case LFUN_WORD_RIGHT:
+       case LFUN_WORD_LEFT:
+       case LFUN_CHAR_FORWARD:
+       case LFUN_CHAR_FORWARD_SELECT:
+       case LFUN_CHAR_BACKWARD:
+       case LFUN_CHAR_BACKWARD_SELECT:
+       case LFUN_CHAR_LEFT:
+       case LFUN_CHAR_LEFT_SELECT:
+       case LFUN_CHAR_RIGHT:
+       case LFUN_CHAR_RIGHT_SELECT:
+       case LFUN_UP:
+       case LFUN_UP_SELECT:
+       case LFUN_DOWN:
+       case LFUN_DOWN_SELECT:
+       case LFUN_PARAGRAPH_SELECT:
+       case LFUN_PARAGRAPH_UP_SELECT:
+       case LFUN_PARAGRAPH_DOWN_SELECT:
+       case LFUN_LINE_BEGIN_SELECT:
+       case LFUN_LINE_END_SELECT:
+       case LFUN_WORD_FORWARD_SELECT:
+       case LFUN_WORD_BACKWARD_SELECT:
+       case LFUN_WORD_RIGHT_SELECT:
+       case LFUN_WORD_LEFT_SELECT:
+       case LFUN_WORD_SELECT:
+       case LFUN_SECTION_SELECT:
+       case LFUN_BUFFER_BEGIN:
+       case LFUN_BUFFER_END:
+       case LFUN_BUFFER_BEGIN_SELECT:
+       case LFUN_BUFFER_END_SELECT:
+       case LFUN_INSET_BEGIN:
+       case LFUN_INSET_END:
+       case LFUN_INSET_BEGIN_SELECT:
+       case LFUN_INSET_END_SELECT:
+       case LFUN_PARAGRAPH_UP:
+       case LFUN_PARAGRAPH_DOWN:
+       case LFUN_LINE_BEGIN:
+       case LFUN_LINE_END:
+       case LFUN_CHAR_DELETE_FORWARD:
+       case LFUN_CHAR_DELETE_BACKWARD:
+       case LFUN_WORD_UPCASE:
+       case LFUN_WORD_LOWCASE:
+       case LFUN_WORD_CAPITALIZE:
+       case LFUN_CHARS_TRANSPOSE:
+       case LFUN_SERVER_GET_XY:
+       case LFUN_SERVER_SET_XY:
+       case LFUN_SERVER_GET_LAYOUT:
+       case LFUN_SELF_INSERT:
+       case LFUN_UNICODE_INSERT:
+       case LFUN_THESAURUS_ENTRY:
+       case LFUN_ESCAPE:
+       case LFUN_SERVER_GET_STATISTICS:
+               // these are handled in our dispatch()
+               enable = true;
+               break;
+
+       case LFUN_INSET_INSERT: {
+               string const type = cmd.getArg(0);
+               if (type == "toc") {
+                       code = TOC_CODE;
+                       // not allowed in description items
+                       //FIXME: couldn't this be merged in Inset::insetAllowed()?
+                       enable = !inDescriptionItem(cur);
+               } else {
+                       enable = true;
+               }
+               break;
+       }
+
+       case LFUN_SEARCH_IGNORE: {
+               bool const value = cmd.getArg(1) == "true";
+               setIgnoreFormat(cmd.getArg(0), value);
+               break;
+       }
+
+       default:
+               return false;
+       }
+
+       if (code != NO_CODE
+           && (cur.empty()
+               || !cur.inset().insetAllowed(code)
+               || (cur.paragraph().layout().pass_thru && !allow_in_passthru)))
+               enable = false;
+
+       status.setEnabled(enable);
+       return true;
+}
+
+
+void Text::pasteString(Cursor & cur, docstring const & clip,
+               bool asParagraphs)
+{
+       if (!clip.empty()) {
+               cur.recordUndo();
+               if (asParagraphs)
+                       insertStringAsParagraphs(cur, clip, cur.current_font);
+               else
+                       insertStringAsLines(cur, clip, cur.current_font);
+       }
+}
+
+
+// FIXME: an item inset would make things much easier.
+bool Text::inDescriptionItem(Cursor const & cur) const
+{
+       Paragraph const & par = cur.paragraph();
+       pos_type const pos = cur.pos();
+       pos_type const body_pos = par.beginOfBody();
+
+       if (par.layout().latextype != LATEX_LIST_ENVIRONMENT
+           && (par.layout().latextype != LATEX_ITEM_ENVIRONMENT
+               || par.layout().margintype != MARGIN_FIRST_DYNAMIC))
+               return false;
+
+       return (pos < body_pos
+               || (pos == body_pos
+                   && (pos == 0 || par.getChar(pos - 1) != ' ')));
+}
+
+
+std::vector<docstring> Text::getFreeFonts() const
+{
+       vector<docstring> ffList;
+
+       for (auto const & f : freeFonts)
+               ffList.push_back(f.first);
+
+       return ffList;
+}
+
 } // namespace lyx