]> git.lyx.org Git - lyx.git/blobdiff - src/Text.cpp
Move several common types to support/types.h
[lyx.git] / src / Text.cpp
index e1c37faf3ab2700376d70f2d2f2e0ca2b4e3fc8a..0bb66f6666e46ee6bf69fe89390cc9cb2df3ac15 100644 (file)
 
 #include "Author.h"
 #include "Buffer.h"
-#include "buffer_funcs.h"
 #include "BufferParams.h"
 #include "BufferView.h"
 #include "Changes.h"
 #include "CompletionList.h"
 #include "Cursor.h"
+#include "CursorSlice.h"
 #include "CutAndPaste.h"
 #include "DispatchResult.h"
 #include "Encoding.h"
 #include "ErrorList.h"
-#include "FuncRequest.h"
 #include "factory.h"
-#include "InsetList.h"
+#include "Font.h"
 #include "Language.h"
 #include "Layout.h"
-#include "Length.h"
 #include "Lexer.h"
 #include "lyxfind.h"
 #include "LyXRC.h"
 #include "Paragraph.h"
 #include "ParagraphParameters.h"
-#include "ParIterator.h"
 #include "TextClass.h"
 #include "TextMetrics.h"
-#include "WordLangTuple.h"
+#include "Undo.h"
 #include "WordList.h"
 
+#include "insets/Inset.h"
 #include "insets/InsetText.h"
-#include "insets/InsetBibitem.h"
 #include "insets/InsetCaption.h"
-#include "insets/InsetNewline.h"
-#include "insets/InsetNewpage.h"
-#include "insets/InsetArgument.h"
 #include "insets/InsetIPAMacro.h"
-#include "insets/InsetSpace.h"
 #include "insets/InsetSpecialChar.h"
 #include "insets/InsetTabular.h"
 
 #include "support/convert.h"
 #include "support/debug.h"
 #include "support/docstream.h"
+#include "support/docstring.h"
 #include "support/gettext.h"
 #include "support/lassert.h"
 #include "support/lstrings.h"
-#include "support/lyxalgo.h"
 #include "support/lyxtime.h"
 #include "support/textutils.h"
 #include "support/unique_ptr.h"
@@ -113,8 +106,7 @@ void breakParagraphConservative(BufferParams const & bparams,
        ParagraphList & pars, pit_type pit, pos_type pos)
 {
        // create a new paragraph
-       Paragraph & tmp = *pars.insert(lyx::next(pars.begin(), pit + 1),
-                                      Paragraph());
+       Paragraph & tmp = *pars.insert(pars.iterator_at(pit + 1), Paragraph());
        Paragraph & par = pars[pit];
 
        tmp.setInsetOwner(&par.inInset());
@@ -169,7 +161,7 @@ void mergeParagraph(BufferParams const & bparams,
        // move the change of the end-of-paragraph character
        par.setChange(par.size(), change);
 
-       pars.erase(lyx::next(pars.begin(), par_offset + 1));
+       pars.erase(pars.iterator_at(par_offset + 1));
 }
 
 
@@ -190,10 +182,8 @@ Text::Text(InsetText * owner, bool use_default_layout)
 Text::Text(InsetText * owner, Text const & text)
        : owner_(owner), pars_(text.pars_)
 {
-       ParagraphList::iterator const end = pars_.end();
-       ParagraphList::iterator it = pars_.begin();
-       for (; it != end; ++it)
-               it->setInsetOwner(owner);
+       for (auto & p : pars_)
+               p.setInsetOwner(owner);
 }
 
 
@@ -288,6 +278,35 @@ Font const Text::outerFont(pit_type par_offset) const
 }
 
 
+int Text::getEndLabel(pit_type p) const
+{
+       pit_type pit = p;
+       depth_type par_depth = pars_[p].getDepth();
+       while (pit != pit_type(pars_.size())) {
+               Layout const & layout = pars_[pit].layout();
+               int const endlabeltype = layout.endlabeltype;
+
+               if (endlabeltype != END_LABEL_NO_LABEL) {
+                       if (p + 1 == pit_type(pars_.size()))
+                               return endlabeltype;
+
+                       depth_type const next_depth =
+                               pars_[p + 1].getDepth();
+                       if (par_depth > next_depth ||
+                           (par_depth == next_depth && layout != pars_[p + 1].layout()))
+                               return endlabeltype;
+                       break;
+               }
+               if (par_depth == 0)
+                       break;
+               pit = outerHook(pit);
+               if (pit != pit_type(pars_.size()))
+                       par_depth = pars_[pit].getDepth();
+       }
+       return END_LABEL_NO_LABEL;
+}
+
+
 static void acceptOrRejectChanges(ParagraphList & pars,
        BufferParams const & bparams, Text::ChangeOp op)
 {
@@ -445,6 +464,9 @@ void Text::readParToken(Paragraph & par, Lexer & lex,
        } else if (token == "\\numeric") {
                lex.next();
                font.fontInfo().setNumber(setLyXMisc(lex.getString()));
+       } else if (token == "\\nospellcheck") {
+               lex.next();
+               font.fontInfo().setNoSpellcheck(setLyXMisc(lex.getString()));
        } else if (token == "\\emph") {
                lex.next();
                font.fontInfo().setEmph(setLyXMisc(lex.getString()));
@@ -590,7 +612,8 @@ void Text::readParagraph(Paragraph & par, Lexer & lex,
                }
        }
        // Final change goes to paragraph break:
-       par.setChange(par.size(), change);
+       if (inset().allowMultiPar())
+               par.setChange(par.size(), change);
 
        // Initialize begin_of_body_ on load; redoParagraph maintains
        par.setBeginOfBody();
@@ -611,14 +634,14 @@ public:
        virtual ~TextCompletionList() {}
 
        ///
-       virtual bool sorted() const { return true; }
+       bool sorted() const override { return true; }
        ///
-       virtual size_t size() const
+       size_t size() const override
        {
                return list_.size();
        }
        ///
-       virtual docstring const & data(size_t idx) const
+       docstring const & data(size_t idx) const override
        {
                return list_.word(idx);
        }
@@ -661,8 +684,7 @@ static void breakParagraph(Text & text, pit_type par_offset, pos_type pos,
        ParagraphList & pars = text.paragraphs();
        // create a new paragraph, and insert into the list
        ParagraphList::iterator tmp =
-               pars.insert(lyx::next(pars.begin(), par_offset + 1),
-                           Paragraph());
+               pars.insert(pars.iterator_at(par_offset + 1), Paragraph());
 
        Paragraph & par = pars[par_offset];
 
@@ -693,6 +715,7 @@ static void breakParagraph(Text & text, pit_type par_offset, pos_type pos,
 
                tmp->params().depth(par.params().depth());
                tmp->params().noindent(par.params().noindent());
+               tmp->params().spacing(par.params().spacing());
 
                // move everything behind the break position
                // to the new paragraph
@@ -836,12 +859,18 @@ void Text::insertStringAsLines(Cursor & cur, docstring const & str,
        pit_type pit = cur.pit();
        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;
+
        // insert the string, don't insert doublespace
        bool space_inserted = true;
-       for (docstring::const_iterator cit = str.begin();
-           cit != str.end(); ++cit) {
+       for (auto const & ch : str) {
                Paragraph & par = pars_[pit];
-               if (*cit == '\n') {
+               if (ch == '\n') {
                        if (inset().allowMultiPar() && (!par.empty() || par.allowEmpty())) {
                                lyx::breakParagraph(*this, pit, pos,
                                        par.layout().isEnvironment());
@@ -852,28 +881,35 @@ void Text::insertStringAsLines(Cursor & cur, docstring const & str,
                                continue;
                        }
                // do not insert consecutive spaces if !free_spacing
-               } else if ((*cit == ' ' || *cit == '\t') &&
+               } else if ((ch == ' ' || ch == '\t') &&
                           space_inserted && !par.isFreeSpacing()) {
                        continue;
-               } else if (*cit == '\t') {
+               } else if (ch == '\t') {
                        if (!par.isFreeSpacing()) {
                                // tabs are like spaces here
                                par.insertChar(pos, ' ', font, bparams.track_changes);
                                ++pos;
                                space_inserted = true;
                        } else {
-                               par.insertChar(pos, *cit, font, bparams.track_changes);
+                               par.insertChar(pos, ch, font, bparams.track_changes);
                                ++pos;
                                space_inserted = true;
                        }
-               } else if (!isPrintable(*cit)) {
-                       // Ignore unprintables
+               } 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)) {
+                       // Ignore (other) unprintables
                        continue;
                } else {
                        // just insert the character
-                       par.insertChar(pos, *cit, font, bparams.track_changes);
+                       par.insertChar(pos, ch, font, bparams.track_changes);
                        ++pos;
-                       space_inserted = (*cit == ' ');
+                       space_inserted = (ch == ' ');
                }
        }
        setCursor(cur, pit, pos);
@@ -922,8 +958,8 @@ bool canInsertChar(Cursor const & cur, char_type c)
                                        "beginning of a paragraph. Please read the Tutorial."));
                        return false;
                }
-               // LASSERT: Is it safe to continue here?
-               LASSERT(cur.pos() > 0, /**/);
+               // If something is wrong, ignore this character.
+               LASSERT(cur.pos() > 0, return false);
                if ((par.isLineSeparator(cur.pos() - 1) || par.isNewline(cur.pos() - 1))
                                && !par.isDeleted(cur.pos() - 1)) {
                        cur.message(_(
@@ -933,15 +969,12 @@ bool canInsertChar(Cursor const & cur, char_type c)
                }
        }
 
-       // Prevent to insert uncodable characters in verbatim and ERT
-       // (workaround for bug 9012)
-       // Don't do it for listings inset, since InsetListings::latex() tries
-       // to switch to a usable encoding which works in many cases (bug 9102).
-       if (par.isPassThru() && cur.inset().lyxCode() != LISTINGS_CODE &&
-           cur.current_font.language()) {
-               Encoding const * e = cur.current_font.language()->encoding();
+       // Prevent to insert uncodable characters in verbatim and ERT.
+       // The encoding is inherited from the context here.
+       if (par.isPassThru() && cur.getEncoding()) {
+               Encoding const * e = cur.getEncoding();
                if (!e->encodable(c)) {
-                       cur.message(_("Character is uncodable in verbatim paragraphs."));
+                       cur.message(_("Character is uncodable in this verbatim context."));
                        return false;
                }
        }
@@ -971,14 +1004,19 @@ void Text::insertChar(Cursor & cur, char_type c)
        if (lyxrc.auto_number) {
                static docstring const number_operators = from_ascii("+-/*");
                static docstring const number_unary_operators = from_ascii("+-");
-               static docstring const number_separators = from_ascii(".,:");
 
+               // Common Number Separators: comma, dot etc.
+               // European Number Terminators: percent, permille, degree, euro etc.
                if (cur.current_font.fontInfo().number() == FONT_ON) {
                        if (!isDigitASCII(c) && !contains(number_operators, c) &&
-                           !(contains(number_separators, c) &&
+                           !(isCommonNumberSeparator(c) &&
                              cur.pos() != 0 &&
                              cur.pos() != cur.lastpos() &&
                              tm.displayFont(pit, cur.pos()).fontInfo().number() == FONT_ON &&
+                             tm.displayFont(pit, cur.pos() - 1).fontInfo().number() == FONT_ON) &&
+                           !(isEuropeanNumberTerminator(c) &&
+                             cur.pos() != 0 &&
+                             tm.displayFont(pit, cur.pos()).fontInfo().number() == FONT_ON &&
                              tm.displayFont(pit, cur.pos() - 1).fontInfo().number() == FONT_ON)
                           )
                                number(cur); // Set current_font.number to OFF
@@ -987,8 +1025,8 @@ void Text::insertChar(Cursor & cur, char_type c)
                        number(cur); // Set current_font.number to ON
 
                        if (cur.pos() != 0) {
-                               char_type const c = par.getChar(cur.pos() - 1);
-                               if (contains(number_unary_operators, c) &&
+                               char_type const ch = par.getChar(cur.pos() - 1);
+                               if (contains(number_unary_operators, ch) &&
                                    (cur.pos() == 1
                                     || par.isSeparator(cur.pos() - 2)
                                     || par.isEnvSeparator(cur.pos() - 2)
@@ -996,7 +1034,7 @@ void Text::insertChar(Cursor & cur, char_type c)
                                  ) {
                                        setCharFont(pit, cur.pos() - 1, cur.current_font,
                                                tm.font_);
-                               } else if (contains(number_separators, c)
+                               } else if (isCommonNumberSeparator(ch)
                                     && cur.pos() >= 2
                                     && tm.displayFont(pit, cur.pos() - 2).fontInfo().number() == FONT_ON) {
                                        setCharFont(pit, cur.pos() - 1, cur.current_font,
@@ -1089,7 +1127,7 @@ void Text::charInserted(Cursor & cur)
            && par.isWordSeparator(cur.pos() - 1)) {
                // get the word in front of cursor
                LBUFERR(this == cur.text());
-               cur.paragraph().updateWords();
+               par.updateWords();
        }
 }
 
@@ -1101,30 +1139,53 @@ bool Text::cursorForwardOneWord(Cursor & cur)
 {
        LBUFERR(this == cur.text());
 
-       pos_type const lastpos = cur.lastpos();
-       pit_type pit = cur.pit();
-       pos_type pos = cur.pos();
-       Paragraph const & par = cur.paragraph();
-
-       // Paragraph boundary is a word boundary
-       if (pos == lastpos || (pos + 1 == lastpos && par.isEnvSeparator(pos))) {
-               if (pit != cur.lastpit())
-                       return setCursor(cur, pit + 1, 0);
-               else
-                       return false;
-       }
-
        if (lyxrc.mac_like_cursor_movement) {
-               // Skip through trailing punctuation and spaces.
-               while (pos != lastpos && (par.isChar(pos) || par.isSpace(pos)))
-                       ++pos;
-
-               // Skip over either a non-char inset or a full word
-               if (pos != lastpos && par.isWordSeparator(pos))
-                       ++pos;
-               else while (pos != lastpos && !par.isWordSeparator(pos))
-                            ++pos;
+               DocIterator dit(cur);
+               DocIterator prv(cur);
+               bool inword = false;
+               bool intext = dit.inTexted();
+               while (!dit.atEnd()) {
+                       if (dit.inTexted()) { // no paragraphs in mathed
+                               Paragraph const & par = dit.paragraph();
+                               pos_type const pos = dit.pos();
+
+                               if (!par.isDeleted(pos)) {
+                                       bool wordsep = par.isWordSeparator(pos);
+                                       if (inword && wordsep)
+                                               break; // stop at word end
+                                       else if (!inword && !wordsep)
+                                               inword = true;
+                               }
+                               intext = true;
+                       } else if (intext) {
+                               // move to end of math
+                               while (!dit.inTexted() && !dit.atEnd()) dit.forwardPos();
+                               break;
+                       }
+                       prv = dit;
+                       dit.forwardPosIgnoreCollapsed();
+               }
+               if (dit.atEnd()) dit = prv;
+               if (dit == cur) return false; // we didn't move
+               Cursor orig(cur);
+               cur.setCursor(dit);
+               // see comment above
+               cur.bv().checkDepm(cur, orig);
+               return true;
        } else {
+               pos_type const lastpos = cur.lastpos();
+               pit_type pit = cur.pit();
+               pos_type pos = cur.pos();
+               Paragraph const & par = cur.paragraph();
+
+               // Paragraph boundary is a word boundary
+               if (pos == lastpos || (pos + 1 == lastpos && par.isEnvSeparator(pos))) {
+                       if (pit != cur.lastpit())
+                               return setCursor(cur, pit + 1, 0);
+                       else
+                               return false;
+               }
+
                LASSERT(pos < lastpos, return false); // see above
                if (!par.isWordSeparator(pos))
                        while (pos != lastpos && !par.isWordSeparator(pos))
@@ -1138,13 +1199,13 @@ bool Text::cursorForwardOneWord(Cursor & cur)
                // Skip over white space
                while (pos != lastpos && par.isSpace(pos))
                             ++pos;
-       }
 
-       // Don't skip a separator inset at the end of a paragraph
-       if (pos == lastpos && pos && par.isEnvSeparator(pos - 1))
-               --pos;
+               // Don't skip a separator inset at the end of a paragraph
+               if (pos == lastpos && pos && par.isEnvSeparator(pos - 1))
+                       --pos;
 
-       return setCursor(cur, pit, pos);
+               return setCursor(cur, pit, pos);
+       }
 }
 
 
@@ -1152,34 +1213,55 @@ bool Text::cursorBackwardOneWord(Cursor & cur)
 {
        LBUFERR(this == cur.text());
 
-       pit_type pit = cur.pit();
-       pos_type pos = cur.pos();
-       Paragraph & par = cur.paragraph();
-
-       // Paragraph boundary is a word boundary
-       if (pos == 0 && pit != 0) {
-               Paragraph & prevpar = getPar(pit - 1);
-               pos = prevpar.size();
-               // Don't stop after an environment separator
-               if (pos && prevpar.isEnvSeparator(pos - 1))
-                       --pos;
-               return setCursor(cur, pit - 1, pos);
-       }
-
        if (lyxrc.mac_like_cursor_movement) {
-               // Skip through punctuation and spaces.
-               while (pos != 0 && (par.isChar(pos - 1) || par.isSpace(pos - 1)))
-                       --pos;
-
-               // Skip over either a non-char inset or a full word
-               if (pos != 0 && par.isWordSeparator(pos - 1) && !par.isChar(pos - 1))
-                       --pos;
-               else while (pos != 0 && !par.isWordSeparator(pos - 1))
-                            --pos;
+               DocIterator dit(cur);
+               bool inword = false;
+               bool intext = dit.inTexted();
+               while (!dit.atBegin()) {
+                       DocIterator prv(dit);
+                       dit.backwardPosIgnoreCollapsed();
+                       if (dit.inTexted()) { // no paragraphs in mathed
+                               Paragraph const & par = dit.paragraph();
+                               pos_type pos = dit.pos();
+
+                               if (!par.isDeleted(pos)) {
+                                       bool wordsep = par.isWordSeparator(pos);
+                                       if (inword && wordsep) {
+                                               dit = prv;
+                                               break; // stop at word begin
+                                       } else if (!inword && !wordsep)
+                                               inword = true;
+                               }
+                               intext = true;
+                       } else if (intext) {
+                               // move to begin of math
+                               while (!dit.inTexted() && !dit.atBegin()) dit.backwardPos();
+                               break;
+                       }
+               }
+               if (dit == cur) return false; // we didn't move
+               Cursor orig(cur);
+               cur.setCursor(dit);
+               // see comment above cursorForwardOneWord
+               cur.bv().checkDepm(cur, orig);
+               return true;
        } else {
+               Paragraph const & par = cur.paragraph();
+               pit_type const pit = cur.pit();
+               pos_type pos = cur.pos();
+
+               // Paragraph boundary is a word boundary
+               if (pos == 0 && pit != 0) {
+                       Paragraph & prevpar = getPar(pit - 1);
+                       pos = prevpar.size();
+                       // Don't stop after an environment separator
+                       if (pos && prevpar.isEnvSeparator(pos - 1))
+                               --pos;
+                       return setCursor(cur, pit - 1, pos);
+               }
                // Skip over white space
                while (pos != 0 && par.isSpace(pos - 1))
-                            --pos;
+                       --pos;
 
                if (pos != 0 && !par.isWordSeparator(pos - 1))
                        while (pos != 0 && !par.isWordSeparator(pos - 1))
@@ -1189,9 +1271,9 @@ bool Text::cursorBackwardOneWord(Cursor & cur)
                                --pos;
                else if (pos != 0 && !par.isSpace(pos - 1)) // non-char inset
                        --pos;
-       }
 
-       return setCursor(cur, pit, pos);
+               return setCursor(cur, pit, pos);
+       }
 }
 
 
@@ -1336,7 +1418,7 @@ void Text::acceptOrRejectChanges(Cursor & cur, ChangeOp op)
        pos_type endPos = cur.selectionEnd().pos();
 
        // keep selection info, because endPos becomes invalid after the first loop
-       bool endsBeforeEndOfPar = (endPos < pars_[endPit].size());
+       bool const endsBeforeEndOfPar = (endPos < pars_[endPit].size());
 
        // first, accept/reject changes within each individual paragraph (do not consider end-of-par)
        for (pit_type pit = begPit; pit <= endPit; ++pit) {
@@ -1355,8 +1437,8 @@ void Text::acceptOrRejectChanges(Cursor & cur, ChangeOp op)
                if (pit == endPit && endPos == 0)
                        break; // last iteration anyway
 
-               pos_type left  = (pit == begPit ? begPos : 0);
-               pos_type right = (pit == endPit ? endPos : parSize);
+               pos_type const left  = (pit == begPit ? begPos : 0);
+               pos_type const right = (pit == endPit ? endPos : parSize);
 
                if (left == right)
                        // there is no change here
@@ -1479,7 +1561,7 @@ void Text::deleteWordForward(Cursor & cur, bool const force)
                cursorForwardOneWord(cur);
                cur.setSelection();
                if (force || !cur.confirmDeletion()) {
-                       cutSelection(cur, true, false);
+                       cutSelection(cur, false);
                        cur.checkBufferStructure();
                }
        }
@@ -1497,7 +1579,7 @@ void Text::deleteWordBackward(Cursor & cur, bool const force)
                cursorBackwardOneWord(cur);
                cur.setSelection();
                if (force || !cur.confirmDeletion()) {
-                       cutSelection(cur, true, false);
+                       cutSelection(cur, false);
                        cur.checkBufferStructure();
                }
        }
@@ -1640,10 +1722,7 @@ bool Text::backspacePos0(Cursor & cur)
        if (cur.pit() == 0)
                return false;
 
-       bool needsUpdate = false;
-
        BufferParams const & bufparams = cur.buffer()->params();
-       DocumentClass const & tclass = bufparams.documentClass();
        ParagraphList & plist = cur.text()->paragraphs();
        Paragraph const & par = cur.paragraph();
        Cursor prevcur = cur;
@@ -1655,35 +1734,29 @@ bool Text::backspacePos0(Cursor & cur)
        if (cur.lastpos() == 0
            || (cur.lastpos() == 1 && par.isSeparator(0))) {
                cur.recordUndo(prevcur.pit());
-               plist.erase(lyx::next(plist.begin(), cur.pit()));
-               needsUpdate = true;
+               plist.erase(plist.iterator_at(cur.pit()));
        }
        // is previous par empty?
        else if (prevcur.lastpos() == 0
                 || (prevcur.lastpos() == 1 && prevpar.isSeparator(0))) {
                cur.recordUndo(prevcur.pit());
-               plist.erase(lyx::next(plist.begin(), prevcur.pit()));
-               needsUpdate = true;
+               plist.erase(plist.iterator_at(prevcur.pit()));
        }
+       // FIXME: Do we really not want to allow this???
        // Pasting is not allowed, if the paragraphs have different
        // layouts. I think it is a real bug of all other
        // word processors to allow it. It confuses the user.
        // Correction: Pasting is always allowed with standard-layout
        // or the empty layout.
-       else if (par.layout() == prevpar.layout()
-                || tclass.isDefaultLayout(par.layout())
-                || tclass.isPlainLayout(par.layout())) {
+       else {
                cur.recordUndo(prevcur.pit());
                mergeParagraph(bufparams, plist, prevcur.pit());
-               needsUpdate = true;
        }
 
-       if (needsUpdate) {
-               cur.forceBufferUpdate();
-               setCursorIntern(cur, prevcur.pit(), prevcur.pos());
-       }
+       cur.forceBufferUpdate();
+       setCursorIntern(cur, prevcur.pit(), prevcur.pos());
 
-       return needsUpdate;
+       return true;
 }
 
 
@@ -1698,7 +1771,8 @@ bool Text::backspace(Cursor & cur)
                Cursor prev_cur = cur;
                --prev_cur.pit();
 
-               if (!prev_cur.paragraph().isMergedOnEndOfParDeletion(cur.buffer()->params().track_changes)) {
+               if (!cur.paragraph().empty()
+                   && !prev_cur.paragraph().isMergedOnEndOfParDeletion(cur.buffer()->params().track_changes)) {
                        cur.recordUndo(prev_cur.pit(), prev_cur.pit());
                        prev_cur.paragraph().setChange(prev_cur.lastpos(), Change(Change::DELETED));
                        setCursorIntern(cur, prev_cur.pit(), prev_cur.lastpos());
@@ -1732,7 +1806,7 @@ bool Text::backspace(Cursor & cur)
        needsUpdate |= handleBibitems(cur);
 
        // A singlePar update is not enough in this case.
-//             cur.screenUpdateFlags(Update::Force);
+       // cur.screenUpdateFlags(Update::Force);
        cur.top().setPitPos(cur.pit(), cur.pos());
 
        return needsUpdate;
@@ -1752,9 +1826,7 @@ bool Text::dissolveInset(Cursor & cur)
        // save position inside inset
        pos_type spos = cur.pos();
        pit_type spit = cur.pit();
-       ParagraphList plist;
-       if (cur.lastpit() != 0 || cur.lastpos() != 0)
-               plist = paragraphs();
+       bool const inset_non_empty = cur.lastpit() != 0 || cur.lastpos() != 0;
        cur.popBackward();
        // update cursor offset
        if (spit == 0)
@@ -1767,7 +1839,8 @@ bool Text::dissolveInset(Cursor & cur)
        ++cur.pos();
 
        Buffer & b = *cur.buffer();
-       if (!plist.empty()) {
+       // Is there anything in this text?
+       if (inset_non_empty) {
                // see bug 7319
                // we clear the cache so that we won't get conflicts with labels
                // that get pasted into the buffer. we should update this before
@@ -1777,13 +1850,29 @@ bool Text::dissolveInset(Cursor & cur)
                // but we'll try the cheaper solution here.
                cur.buffer()->clearReferenceCache();
 
+               ParagraphList & plist = paragraphs();
+               if (!lyxrc.ct_markup_copied)
+                       // Do not revive deleted text
+                       lyx::acceptChanges(plist, b.params());
+
                // ERT paragraphs have the Language latex_language.
                // This is invalid outside of ERT, so we need to
                // change it to the buffer language.
-               ParagraphList::iterator it = plist.begin();
-               ParagraphList::iterator it_end = plist.end();
-               for (; it != it_end; ++it)
-                       it->changeLanguage(b.params(), latex_language, b.language());
+               for (auto & p : plist)
+                       p.changeLanguage(b.params(), latex_language, b.language());
+
+               /* If the inset is the only thing in paragraph and the layout
+                * is not plain, then the layout of the first paragraph of
+                * inset should be remembered.
+                * FIXME: this does not work as expected when change tracking
+                *   is on However, we do not really know what to do in this
+                *   case.
+                */
+               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]);
 
                pasteParagraphList(cur, plist, b.params().documentClassPtr(),
                                   b.errorList("Paste"));
@@ -1895,8 +1984,8 @@ bool Text::read(Lexer & lex,
 }
 
 
-// Returns the current font and depth as a message.
-docstring Text::currentState(Cursor const & cur, bool devel_mode) const
+// Returns the current state (font, depth etc.) as a message for status bar.
+docstring Text::currentState(CursorData const & cur, bool devel_mode) const
 {
        LBUFERR(this == cur.text());
        Buffer & buf = *cur.buffer();
@@ -1925,7 +2014,7 @@ docstring Text::currentState(Cursor const & cur, bool devel_mode) const
        os << bformat(_("Font: %1$s"), font.stateText(&buf.params()));
 
        // The paragraph depth
-       int depth = cur.paragraph().getDepth();
+       int depth = par.getDepth();
        if (depth > 0)
                os << bformat(_(", Depth: %1$d"), depth);
 
@@ -1953,8 +2042,15 @@ docstring Text::currentState(Cursor const & cur, bool devel_mode) const
                }
        }
 
+       // Custom text style
+       InsetLayout const & layout = cur.inset().getLayout();
+       if (layout.lyxtype() == InsetLayout::CHARSTYLE)
+               os << _(", Style: ") << translateIfPossible(layout.labelstring());
+
        if (devel_mode) {
                os << _(", Inset: ") << &cur.inset();
+               if (cur.lastidx() > 0)
+                       os << _(", Cell: ") << cur.idx();
                os << _(", Paragraph: ") << cur.pit();
                os << _(", Id: ") << par.id();
                os << _(", Position: ") << cur.pos();
@@ -1973,14 +2069,46 @@ docstring Text::currentState(Cursor const & cur, bool devel_mode) const
 }
 
 
-docstring Text::getPossibleLabel(Cursor const & cur) const
+docstring Text::getPossibleLabel(DocIterator const & cur) const
 {
-       pit_type pit = cur.pit();
+       pit_type textpit = cur.pit();
+       Layout const * layout = &(pars_[textpit].layout());
+
+       // Will contain the label prefix.
+       docstring name;
 
-       Layout const * layout = &(pars_[pit].layout());
+       // For captions, we just take the caption type
+       Inset * caption_inset = cur.innerInsetOfType(CAPTION_CODE);
+       if (caption_inset) {
+               string const & ftype = static_cast<InsetCaption *>(caption_inset)->floattype();
+               FloatList const & fl = cur.buffer()->params().documentClass().floats();
+               if (fl.typeExist(ftype)) {
+                       Floating const & flt = fl.getType(ftype);
+                       name = from_utf8(flt.refPrefix());
+               }
+               if (name.empty())
+                       name = from_utf8(ftype.substr(0,3));
+       } else {
+               // For section, subsection, etc...
+               if (layout->latextype == LATEX_PARAGRAPH && textpit != 0) {
+                       Layout const * layout2 = &(pars_[textpit - 1].layout());
+                       if (layout2->latextype != LATEX_PARAGRAPH) {
+                               --textpit;
+                               layout = layout2;
+                       }
+               }
+               if (layout->latextype != LATEX_PARAGRAPH)
+                       name = layout->refprefix;
+
+               // If none of the above worked, see if the inset knows.
+               if (name.empty()) {
+                       InsetLayout const & il = cur.inset().getLayout();
+                       name = il.refprefix();
+               }
+       }
 
        docstring text;
-       docstring par_text = pars_[pit].asString();
+       docstring par_text = pars_[textpit].asString(AS_STR_SKIPDELETE);
 
        // The return string of math matrices might contain linebreaks
        par_text = subst(par_text, '\n', '-');
@@ -2001,46 +2129,13 @@ docstring Text::getPossibleLabel(Cursor const & cur) const
        if (text.size() > max_label_length)
                text.resize(max_label_length);
 
-       // Will contain the label prefix.
-       docstring name;
-
-       // For section, subsection, etc...
-       if (layout->latextype == LATEX_PARAGRAPH && pit != 0) {
-               Layout const * layout2 = &(pars_[pit - 1].layout());
-               if (layout2->latextype != LATEX_PARAGRAPH) {
-                       --pit;
-                       layout = layout2;
-               }
-       }
-       if (layout->latextype != LATEX_PARAGRAPH)
-               name = layout->refprefix;
-
-       // For captions, we just take the caption type
-       Inset * caption_inset = cur.innerInsetOfType(CAPTION_CODE);
-       if (caption_inset) {
-               string const & ftype = static_cast<InsetCaption *>(caption_inset)->floattype();
-               FloatList const & fl = cur.buffer()->params().documentClass().floats();
-               if (fl.typeExist(ftype)) {
-                       Floating const & flt = fl.getType(ftype);
-                       name = from_utf8(flt.refPrefix());
-               }
-               if (name.empty())
-                       name = from_utf8(ftype.substr(0,3));
-       }
-
-       // If none of the above worked, see if the inset knows.
-       if (name.empty()) {
-               InsetLayout const & il = cur.inset().getLayout();
-               name = il.refprefix();
-       }
-
        if (!name.empty())
                text = name + ':' + text;
 
        // We need a unique label
        docstring label = text;
        int i = 1;
-       while (cur.buffer()->insetLabel(label)) {
+       while (cur.buffer()->activeLabel(label)) {
                        label = text + '-' + convert<docstring>(i);
                        ++i;
                }
@@ -2176,23 +2271,11 @@ void Text::setMacrocontextPosition(DocIterator const & pos)
 }
 
 
-docstring Text::previousWord(CursorSlice const & sl) const
-{
-       CursorSlice from = sl;
-       CursorSlice to = sl;
-       getWord(from, to, PREVIOUS_WORD);
-       if (sl == from || to == from)
-               return docstring();
-
-       Paragraph const & par = sl.paragraph();
-       return par.asString(from.pos(), to.pos());
-}
-
-
 bool Text::completionSupported(Cursor const & cur) const
 {
        Paragraph const & par = cur.paragraph();
-       return cur.pos() > 0
+       return !cur.selection()
+               && cur.pos() > 0
                && (cur.pos() >= par.size() || par.isWordSeparator(cur.pos()))
                && !par.isWordSeparator(cur.pos() - 1);
 }
@@ -2218,7 +2301,11 @@ bool Text::insertCompletion(Cursor & cur, docstring const & s, bool /*finished*/
 
 docstring Text::completionPrefix(Cursor const & cur) const
 {
-       return previousWord(cur.top());
+       CursorSlice from = cur.top();
+       CursorSlice to = from;
+       getWord(from, to, PREVIOUS_WORD);
+
+       return cur.paragraph().asString(from.pos(), to.pos());
 }
 
 } // namespace lyx