]> git.lyx.org Git - lyx.git/blobdiff - src/Paragraph.cpp
Add a member to TocItem that tells us whether the item in question
[lyx.git] / src / Paragraph.cpp
index 11746f141c7fb9f53ec032cb79bd27ddd3602e25..3ed382a23ea96912bb6cf6c04f604a39efc7be70 100644 (file)
@@ -43,7 +43,6 @@
 #include "TextClass.h"
 #include "TexRow.h"
 #include "Text.h"
-#include "VSpace.h"
 #include "WordLangTuple.h"
 #include "WordList.h"
 
@@ -51,6 +50,7 @@
 
 #include "insets/InsetBibitem.h"
 #include "insets/InsetLabel.h"
+#include "insets/InsetSpecialChar.h"
 
 #include "support/debug.h"
 #include "support/docstring_list.h"
@@ -69,9 +69,11 @@ using namespace lyx::support;
 namespace lyx {
 
 namespace {
+
 /// Inset identifier (above 0x10ffff, for ucs-4)
 char_type const META_INSET = 0x200001;
-};
+
+}
 
 
 /////////////////////////////////////////////////////////////////////
@@ -86,9 +88,9 @@ public:
        : range_(range), result_(result)
        {}
        ///
-       FontSpan range() const { return range_; }
+       FontSpan const & range() const { return range_; }
        ///
-       void range(FontSpan r) { range_ = r; }
+       void range(FontSpan const & r) { range_ = r; }
        ///
        SpellChecker::Result result() const { return result_; }
        ///
@@ -96,7 +98,7 @@ public:
        ///
        bool inside(pos_type pos) const { return range_.inside(pos); }
        ///
-       bool covered(FontSpan r) const
+       bool covered(FontSpan const & r) const
        {
                // 1. first of new range inside current range or
                // 2. last of new range inside current range or
@@ -111,7 +113,7 @@ public:
                if (range_.first > pos) {
                        range_.first += offset;
                        range_.last += offset;
-               } else if (range_.last > pos) {
+               } else if (range_.last >= pos) {
                        range_.last += offset;
                }
        }
@@ -129,14 +131,38 @@ private:
 
 class SpellCheckerState {
 public:
-       SpellCheckerState() {
+       SpellCheckerState()
+       {
                needs_refresh_ = true;
                current_change_number_ = 0;
        }
 
-       void setRange(FontSpan const fp, SpellChecker::Result state)
+       void setRange(FontSpan const fp, SpellChecker::Result state)
        {
-               eraseCoveredRanges(fp);
+               Ranges result;
+               RangesIterator et = ranges_.end();
+               RangesIterator it = ranges_.begin();
+               for (; it != et; ++it) {
+                       if (!it->covered(fp))
+                               result.push_back(SpellResultRange(it->range(), it->result()));
+                       else if (state == SpellChecker::WORD_OK) {
+                               // trim or split the current misspelled range
+                               // store misspelled ranges only
+                               FontSpan range = it->range();
+                               if (fp.first > range.first) {
+                                       // misspelled area in front of WORD_OK
+                                       range.last = fp.first - 1;
+                                       result.push_back(SpellResultRange(range, it->result()));
+                                       range = it->range();
+                               }
+                               if (fp.last < range.last) {
+                                       // misspelled area after WORD_OK range
+                                       range.first = fp.last + 1;
+                                       result.push_back(SpellResultRange(range, it->result()));
+                               }
+                       }
+               }
+               ranges_ = result;
                if (state != SpellChecker::WORD_OK)
                        ranges_.push_back(SpellResultRange(fp, state));
        }
@@ -153,6 +179,12 @@ public:
                needsRefresh(pos);
        }
 
+       void refreshLast(pos_type pos)
+       {
+               if (pos < refresh_.last)
+                       refresh_.last = pos;
+       }
+
        SpellChecker::Result getState(pos_type pos) const
        {
                SpellChecker::Result result = SpellChecker::WORD_OK;
@@ -166,39 +198,59 @@ public:
                return result;
        }
 
-       bool needsRefresh() const {
+       FontSpan const & getRange(pos_type pos) const
+       {
+               /// empty span to indicate mismatch
+               static FontSpan empty_;
+               RangesIterator et = ranges_.end();
+               RangesIterator it = ranges_.begin();
+               for (; it != et; ++it) {
+                       if(it->inside(pos)) {
+                               return it->range();
+                       }
+               }
+               return empty_;
+       }
+
+       bool needsRefresh() const
+       {
                return needs_refresh_;
        }
 
-       SpellChecker::ChangeNumber currentChangeNumber() const {
+       SpellChecker::ChangeNumber currentChangeNumber() const
+       {
                return current_change_number_;
        }
 
-       void refreshRange(pos_type & first, pos_type & last) const {
+       void refreshRange(pos_type & first, pos_type & last) const
+       {
                first = refresh_.first;
                last = refresh_.last;
        }
 
-       void needsRefresh(pos_type pos) {
+       void needsRefresh(pos_type pos)
+       {
                if (needs_refresh_ && pos != -1) {
                        if (pos < refresh_.first)
                                refresh_.first = pos;
                        if (pos > refresh_.last)
                                refresh_.last = pos;
                } else if (pos != -1) {
-                       refresh_.first = pos;
-                       refresh_.last = pos;
+                       // init request check for neighbour positions too
+                       refresh_.first = pos > 0 ? pos - 1 : 0;
+                       // no need for special end of paragraph check
+                       refresh_.last = pos + 1;
                }
                needs_refresh_ = pos != -1;
        }
 
-       void needsCompleteRefresh(SpellChecker::ChangeNumber change_number) {
+       void needsCompleteRefresh(SpellChecker::ChangeNumber change_number)
+       {
                needs_refresh_ = true;
                refresh_.first = 0;
                refresh_.last = -1;
                current_change_number_ = change_number;
        }
-
 private:
        typedef vector<SpellResultRange> Ranges;
        typedef Ranges::const_iterator RangesIterator;
@@ -210,18 +262,6 @@ private:
        SpellChecker::ChangeNumber current_change_number_;
 
 
-       void eraseCoveredRanges(FontSpan const fp)
-       {
-               Ranges result;
-               RangesIterator et = ranges_.end();
-               RangesIterator it = ranges_.begin();
-               for (; it != et; ++it) {
-                       if (!it->covered(fp))
-                               result.push_back(SpellResultRange(it->range(), it->result()));
-               }
-               ranges_ = result;
-       }
-
        void correctRangesAfterPos(pos_type pos, int offset)
        {
                RangesIterator et = ranges_.end();
@@ -254,14 +294,14 @@ public:
 
        /// Output the surrogate pair formed by \p c and \p next to \p os.
        /// \return the number of characters written.
-       int latexSurrogatePair(odocstream & os, char_type c, char_type next,
+       int latexSurrogatePair(otexstream & os, char_type c, char_type next,
                               OutputParams const &);
 
        /// Output a space in appropriate formatting (or a surrogate pair
        /// if the next character is a combining character).
        /// \return whether a surrogate pair was output.
        bool simpleTeXBlanks(OutputParams const &,
-                            odocstream &, TexRow & texrow,
+                            otexstream &,
                             pos_type i,
                             unsigned int & column,
                             Font const & font,
@@ -270,21 +310,21 @@ public:
        /// Output consecutive unicode chars, belonging to the same script as
        /// specified by the latex macro \p ltx, to \p os starting from \p i.
        /// \return the number of characters written.
-       int writeScriptChars(odocstream & os, docstring const & ltx,
+       int writeScriptChars(otexstream & os, docstring const & ltx,
                           Change const &, Encoding const &, pos_type & i);
 
        /// This could go to ParagraphParameters if we want to.
-       int startTeXParParams(BufferParams const &, odocstream &, TexRow &,
+       int startTeXParParams(BufferParams const &, otexstream &,
                              OutputParams const &) const;
 
        /// This could go to ParagraphParameters if we want to.
-       int endTeXParParams(BufferParams const &, odocstream &, TexRow &,
-                           OutputParams const &) const;
+       bool endTeXParParams(BufferParams const &, otexstream &,
+                            OutputParams const &) const;
 
        ///
        void latexInset(BufferParams const &,
-                                  odocstream &,
-                                  TexRow & texrow, OutputParams &,
+                                  otexstream &,
+                                  OutputParams &,
                                   Font & running_font,
                                   Font & basefont,
                                   Font const & outerfont,
@@ -296,30 +336,39 @@ public:
 
        ///
        void latexSpecialChar(
-                                  odocstream & os,
+                                  otexstream & os,
+                                  BufferParams const & bparams,
                                   OutputParams const & runparams,
                                   Font const & running_font,
                                   Change const & running_change,
                                   Layout const & style,
                                   pos_type & i,
+                                  pos_type end_pos,
                                   unsigned int & column);
 
        ///
        bool latexSpecialT1(
                char_type const c,
-               odocstream & os,
+               otexstream & os,
+               pos_type i,
+               unsigned int & column);
+       ///
+       bool latexSpecialT3(
+               char_type const c,
+               otexstream & os,
                pos_type i,
                unsigned int & column);
        ///
        bool latexSpecialTypewriter(
                char_type const c,
-               odocstream & os,
+               otexstream & os,
                pos_type i,
                unsigned int & column);
        ///
        bool latexSpecialPhrase(
-               odocstream & os,
+               otexstream & os,
                pos_type & i,
+               pos_type end_pos,
                unsigned int & column,
                OutputParams const & runparams);
 
@@ -333,40 +382,47 @@ public:
        /// match a string against a particular point in the paragraph
        bool isTextAt(string const & str, pos_type pos) const;
 
-       /// a vector of inset positions
-       typedef vector<pos_type> Positions;
-       typedef Positions::const_iterator PositionsIterator;
+       /// a vector of speller skip positions
+       typedef vector<FontSpan> SkipPositions;
+       typedef SkipPositions::const_iterator SkipPositionsIterator;
 
+       void appendSkipPosition(SkipPositions & skips, pos_type const pos) const;
+       
        Language * getSpellLanguage(pos_type const from) const;
 
        Language * locateSpellRange(pos_type & from, pos_type & to,
-                                                               Positions & softbreaks) const;
+                                   SkipPositions & skips) const;
 
-       bool hasSpellerChange() const {
+       bool hasSpellerChange() const
+       {
                SpellChecker::ChangeNumber speller_change_number = 0;
                if (theSpellChecker())
                        speller_change_number = theSpellChecker()->changeNumber();
                return speller_change_number > speller_state_.currentChangeNumber();
        }
 
+       bool ignoreWord(docstring const & word) const ;
+       
        void setMisspelled(pos_type from, pos_type to, SpellChecker::Result state)
        {
                pos_type textsize = owner_->size();
                // check for sane arguments
-               if (to < from || from >= textsize)
+               if (to <= from || from >= textsize)
                        return;
-               FontSpan fp = FontSpan(from, to);
-               // don't mark end of paragraph
-               if (fp.last >= textsize)
-                       fp.last = textsize - 1;
+               FontSpan fp = FontSpan(from, to - 1);
                speller_state_.setRange(fp, state);
        }
 
-       void requestSpellCheck(pos_type pos) {
-               speller_state_.needsRefresh(pos);
+       void requestSpellCheck(pos_type pos)
+       {
+               if (pos == -1)
+                       speller_state_.needsCompleteRefresh(speller_state_.currentChangeNumber());
+               else
+                       speller_state_.needsRefresh(pos);
        }
 
-       void readySpellCheck() {
+       void readySpellCheck()
+       {
                speller_state_.needsRefresh(-1);
        }
 
@@ -391,22 +447,23 @@ public:
                last = endpos;
        }
 
-       int countSoftbreaks(PositionsIterator & it, PositionsIterator const et,
+       int countSkips(SkipPositionsIterator & it, SkipPositionsIterator const et,
                            int & start) const
        {
-               int numbreaks = 0;
-               while (it != et && *it < start) {
-                       ++start;
-                       ++numbreaks;
+               int numskips = 0;
+               while (it != et && it->first < start) {
+                       int skip = it->last - it->first + 1;
+                       start += skip;
+                       numskips += skip;
                        ++it;
                }
-               return numbreaks;
+               return numskips;
        }
 
        void markMisspelledWords(pos_type const & first, pos_type const & last,
                                                         SpellChecker::Result result,
                                                         docstring const & word,
-                                                        Positions const & softbreaks);
+                                                        SkipPositions const & skips);
 
        InsetCode ownerCode() const
        {
@@ -528,9 +585,9 @@ Paragraph::Private::Private(Private const & p, Paragraph * owner,
 
 
 void Paragraph::addChangesToToc(DocIterator const & cdit,
-       Buffer const & buf) const
+       Buffer const & buf, bool output_active) const
 {
-       d->changes_.addToToc(cdit, buf);
+       d->changes_.addToToc(cdit, buf, output_active);
 }
 
 
@@ -748,6 +805,8 @@ bool Paragraph::eraseChar(pos_type pos, bool trackChanges)
                if (!change.changed() ||
                      (change.inserted() && !change.currentAuthor())) {
                        setChange(pos, Change(Change::DELETED));
+                       // request run of spell checker
+                       requestSpellCheck(pos);
                        return false;
                }
 
@@ -779,6 +838,7 @@ bool Paragraph::eraseChar(pos_type pos, bool trackChanges)
 
        // Update list of misspelled positions
        d->speller_state_.decreasePosAfterPos(pos);
+       d->speller_state_.refreshLast(size());
 
        return true;
 }
@@ -798,7 +858,7 @@ int Paragraph::eraseChars(pos_type start, pos_type end, bool trackChanges)
 }
 
 
-int Paragraph::Private::latexSurrogatePair(odocstream & os, char_type c,
+int Paragraph::Private::latexSurrogatePair(otexstream & os, char_type c,
                char_type next, OutputParams const & runparams)
 {
        // Writing next here may circumvent a possible font change between
@@ -809,8 +869,14 @@ int Paragraph::Private::latexSurrogatePair(odocstream & os, char_type c,
        // FIXME: change tracking
        // Is this correct WRT change tracking?
        Encoding const & encoding = *(runparams.encoding);
-       docstring const latex1 = encoding.latexChar(next);
-       docstring const latex2 = encoding.latexChar(c);
+       docstring latex1 = encoding.latexChar(next).first;
+       if (runparams.inIPA) {
+               string const tipashortcut = Encodings::TIPAShortcut(next);
+               if (!tipashortcut.empty()) {
+                       latex1 = from_ascii(tipashortcut);
+               }
+       }
+       docstring const latex2 = encoding.latexChar(c).first;
        if (docstring(1, next) == latex1) {
                // the encoding supports the combination
                os << latex2 << latex1;
@@ -827,7 +893,7 @@ int Paragraph::Private::latexSurrogatePair(odocstream & os, char_type c,
 
 
 bool Paragraph::Private::simpleTeXBlanks(OutputParams const & runparams,
-                                      odocstream & os, TexRow & texrow,
+                                      otexstream & os,
                                       pos_type i,
                                       unsigned int & column,
                                       Font const & font,
@@ -860,8 +926,7 @@ bool Paragraph::Private::simpleTeXBlanks(OutputParams const & runparams,
                     || text_[i - 1] == ':'
                     || text_[i - 1] == '!'))) {
                os << '\n';
-               texrow.newline();
-               texrow.start(owner_->id(), i + 1);
+               os.texrow().start(owner_->id(), i + 1);
                column = 0;
        } else if (style.free_spacing) {
                os << '~';
@@ -872,7 +937,7 @@ bool Paragraph::Private::simpleTeXBlanks(OutputParams const & runparams,
 }
 
 
-int Paragraph::Private::writeScriptChars(odocstream & os,
+int Paragraph::Private::writeScriptChars(otexstream & os,
                                         docstring const & ltx,
                                         Change const & runningChange,
                                         Encoding const & encoding,
@@ -927,7 +992,7 @@ int Paragraph::Private::writeScriptChars(odocstream & os,
                // Stop here if there is a font attribute or encoding change.
                if (found && cit != end && prev_font != cit->font())
                        break;
-               docstring const latex = encoding.latexChar(next);
+               docstring const latex = encoding.latexChar(next).first;
                docstring::size_type const b1 =
                                        latex.find_first_of(from_ascii("{"));
                docstring::size_type const b2 =
@@ -966,8 +1031,7 @@ bool Paragraph::Private::isTextAt(string const & str, pos_type pos) const
 
 
 void Paragraph::Private::latexInset(BufferParams const & bparams,
-                                   odocstream & os,
-                                   TexRow & texrow,
+                                   otexstream & os,
                                    OutputParams & runparams,
                                    Font & running_font,
                                    Font & basefont,
@@ -982,7 +1046,9 @@ void Paragraph::Private::latexInset(BufferParams const & bparams,
        LASSERT(inset, /**/);
 
        if (style.pass_thru) {
-               inset->plaintext(os, runparams);
+               odocstringstream ods;
+               inset->plaintext(ods, runparams);
+               os << ods.str();
                return;
        }
 
@@ -1010,8 +1076,7 @@ void Paragraph::Private::latexInset(BufferParams const & bparams,
                                os << "\\protect ";
 
                }
-               texrow.newline();
-               texrow.start(owner_->id(), i + 1);
+               os.texrow().start(owner_->id(), i + 1);
                column = 0;
        }
 
@@ -1027,9 +1092,10 @@ void Paragraph::Private::latexInset(BufferParams const & bparams,
        }
 
        bool close = false;
-       odocstream::pos_type const len = os.tellp();
+       odocstream::pos_type const len = os.os().tellp();
 
        if (inset->forceLTR()
+           && !runparams.use_polyglossia
            && running_font.isRightToLeft()
            // ERT is an exception, it should be output with no
            // decorations at all
@@ -1053,7 +1119,7 @@ void Paragraph::Private::latexInset(BufferParams const & bparams,
        // ArabTeX, though, cannot handle this special behavior, it seems.
        bool arabtex = basefont.language()->lang() == "arabic_arabtex"
                || running_font.language()->lang() == "arabic_arabtex";
-       if (open_font && inset->noFontChange()) {
+       if (open_font && !inset->inheritFont()) {
                bool closeLanguage = arabtex
                        || basefont.isRightToLeft() == running_font.isRightToLeft();
                unsigned int count = running_font.latexWriteEndChanges(os,
@@ -1076,10 +1142,12 @@ void Paragraph::Private::latexInset(BufferParams const & bparams,
                }
        }
 
-       int tmp;
+       int prev_rows = os.texrow().rows();
 
        try {
-               tmp = inset->latex(os, runparams);
+               runparams.lastid = id_;
+               runparams.lastpos = i;
+               inset->latex(os, runparams);
        } catch (EncodingException & e) {
                // add location information and throw again.
                e.par_id = id_;
@@ -1094,12 +1162,11 @@ void Paragraph::Private::latexInset(BufferParams const & bparams,
                                os << '}';
        }
 
-       if (tmp) {
-               texrow.newlines(tmp);
-               texrow.start(owner_->id(), i + 1);
+       if (os.texrow().rows() > prev_rows) {
+               os.texrow().start(owner_->id(), i + 1);
                column = 0;
        } else {
-               column += os.tellp() - len;
+               column += (unsigned int)(os.os().tellp() - len);
        }
 
        if (owner_->isDeleted(i))
@@ -1107,36 +1174,46 @@ void Paragraph::Private::latexInset(BufferParams const & bparams,
 }
 
 
-void Paragraph::Private::latexSpecialChar(
-                                            odocstream & os,
-                                            OutputParams const & runparams,
-                                            Font const & running_font,
-                                            Change const & running_change,
-                                            Layout const & style,
-                                            pos_type & i,
-                                            unsigned int & column)
+void Paragraph::Private::latexSpecialChar(otexstream & os,
+                                         BufferParams const & bparams,
+                                         OutputParams const & runparams,
+                                         Font const & running_font,
+                                         Change const & running_change,
+                                         Layout const & style,
+                                         pos_type & i,
+                                         pos_type end_pos,
+                                         unsigned int & column)
 {
-       char_type const c = text_[i];
+       // With polyglossia, brackets and stuff need not be reversed
+       // in RTL scripts (see bug #8251)
+       char_type const c = (runparams.use_polyglossia) ?
+               owner_->getUChar(bparams, i) : text_[i];
 
        if (style.pass_thru || runparams.pass_thru) {
-               if (c != '\0')
-                       // FIXME UNICODE: This can fail if c cannot
-                       // be encoded in the current encoding.
+               if (c != '\0') {
+                       Encoding const * const enc = runparams.encoding;
+                       if (enc && !enc->encodable(c))
+                               throw EncodingException(c);
                        os.put(c);
+               }
                return;
        }
 
+       // TIPA uses its own T3 encoding
+       if (runparams.inIPA && latexSpecialT3(c, os, i, column))
+               return;
        // If T1 font encoding is used, use the special
        // characters it provides.
        // NOTE: some languages reset the font encoding
        // internally
-       if (!running_font.language()->internalFontEncoding()
+       if (!runparams.inIPA && !running_font.language()->internalFontEncoding()
            && lyxrc.fontenc == "T1" && latexSpecialT1(c, os, i, column))
                return;
 
        // \tt font needs special treatment
-       if (running_font.fontInfo().family() == TYPEWRITER_FAMILY
-               && latexSpecialTypewriter(c, os, i, column))
+       if (!runparams.inIPA
+            && running_font.fontInfo().family() == TYPEWRITER_FAMILY
+            && latexSpecialTypewriter(c, os, i, column))
                return;
 
        // Otherwise, we use what LaTeX provides us.
@@ -1203,15 +1280,16 @@ void Paragraph::Private::latexSpecialChar(
 
        default:
                // LyX, LaTeX etc.
-               if (latexSpecialPhrase(os, i, column, runparams))
+               if (latexSpecialPhrase(os, i, end_pos, column, runparams))
                        return;
 
                if (c == '\0')
                        return;
 
                Encoding const & encoding = *(runparams.encoding);
+               char_type next = '\0';
                if (i + 1 < int(text_.size())) {
-                       char_type next = text_[i + 1];
+                       next = text_[i + 1];
                        if (Encodings::isCombiningChar(next)) {
                                column += latexSurrogatePair(os, c, next, runparams) - 1;
                                ++i;
@@ -1219,27 +1297,57 @@ void Paragraph::Private::latexSpecialChar(
                        }
                }
                string script;
-               docstring const latex = encoding.latexChar(c);
+               pair<docstring, bool> latex = encoding.latexChar(c);
+               docstring nextlatex;
+               bool nexttipas = false;
+               string nexttipashortcut;
+               if (next != '\0' && next != META_INSET) {
+                       nextlatex = encoding.latexChar(next).first;
+                       if (runparams.inIPA) {
+                               nexttipashortcut = Encodings::TIPAShortcut(next);
+                               nexttipas = !nexttipashortcut.empty();
+                       }
+               }
+               bool tipas = false;
+               if (runparams.inIPA) {
+                       string const tipashortcut = Encodings::TIPAShortcut(c);
+                       if (!tipashortcut.empty()) {
+                               latex.first = from_ascii(tipashortcut);
+                               latex.second = false;
+                               tipas = true;
+                       }
+               }
                if (Encodings::isKnownScriptChar(c, script)
-                   && prefixIs(latex, from_ascii("\\" + script)))
-                       column += writeScriptChars(os, latex,
+                   && prefixIs(latex.first, from_ascii("\\" + script)))
+                       column += writeScriptChars(os, latex.first,
                                        running_change, encoding, i) - 1;
-               else if (latex.length() > 1 && latex[latex.length() - 1] != '}') {
+               else if (latex.second
+                        && ((!prefixIs(nextlatex, '\\')
+                              && !prefixIs(nextlatex, '{')
+                              && !prefixIs(nextlatex, '}'))
+                            || (nexttipas
+                                && !prefixIs(from_ascii(nexttipashortcut), '\\')))
+                        && !tipas) {
                        // Prevent eating of a following
                        // space or command corruption by
                        // following characters
-                       column += latex.length() + 1;
-                       os << latex << "{}";
+                       if (next == ' ' || next == '\0') {
+                               column += latex.first.length() + 1;
+                               os << latex.first << "{}";
+                       } else {
+                               column += latex.first.length();
+                               os << latex.first << " ";
+                       }
                } else {
-                       column += latex.length() - 1;
-                       os << latex;
+                       column += latex.first.length() - 1;
+                       os << latex.first;
                }
                break;
        }
 }
 
 
-bool Paragraph::Private::latexSpecialT1(char_type const c, odocstream & os,
+bool Paragraph::Private::latexSpecialT1(char_type const c, otexstream & os,
        pos_type i, unsigned int & column)
 {
        switch (c) {
@@ -1267,7 +1375,27 @@ bool Paragraph::Private::latexSpecialT1(char_type const c, odocstream & os,
 }
 
 
-bool Paragraph::Private::latexSpecialTypewriter(char_type const c, odocstream & os,
+bool Paragraph::Private::latexSpecialT3(char_type const c, otexstream & os,
+       pos_type /*i*/, unsigned int & column)
+{
+       switch (c) {
+       case '*':
+       case '[':
+       case ']':
+       case '\"':
+               os.put(c);
+               return true;
+       case '|':
+               os << "\\textvertline{}";
+               column += 14;
+               return true;
+       default:
+               return false;
+       }
+}
+
+
+bool Paragraph::Private::latexSpecialTypewriter(char_type const c, otexstream & os,
        pos_type i, unsigned int & column)
 {
        switch (c) {
@@ -1289,7 +1417,10 @@ bool Paragraph::Private::latexSpecialTypewriter(char_type const c, odocstream &
 }
 
 
-bool Paragraph::Private::latexSpecialPhrase(odocstream & os, pos_type & i,
+/// \param end_pos
+///   If [start_pos, end_pos) does not include entirely the special phrase, then
+///   do not apply the macro transformation.
+bool Paragraph::Private::latexSpecialPhrase(otexstream & os, pos_type & i, pos_type end_pos,
        unsigned int & column, OutputParams const & runparams)
 {
        // FIXME: if we have "LaTeX" with a font
@@ -1299,7 +1430,8 @@ bool Paragraph::Private::latexSpecialPhrase(odocstream & os, pos_type & i,
        // "words" for some definition of word
 
        for (size_t pnr = 0; pnr < phrases_nr; ++pnr) {
-               if (!isTextAt(special_phrases[pnr].phrase, i))
+               if (!isTextAt(special_phrases[pnr].phrase, i)
+                   || (end_pos != -1 && i + int(special_phrases[pnr].phrase.size()) > end_pos))
                        continue;
                if (runparams.moving_arg)
                        os << "\\protect";
@@ -1315,26 +1447,49 @@ bool Paragraph::Private::latexSpecialPhrase(odocstream & os, pos_type & i,
 void Paragraph::Private::validate(LaTeXFeatures & features) const
 {
        if (layout_->inpreamble && inset_owner_) {
+               bool const is_command = layout_->latextype == LATEX_COMMAND;
                Buffer const & buf = inset_owner_->buffer();
                BufferParams const & bp = buf.params();
                Font f;
-               TexRow tr;
+               TexRow texrow;
+               // Using a string stream here circumvents the encoding
+               // switching machinery of odocstream. Therefore the
+               // output is wrong if this paragraph contains content
+               // that needs to switch encoding.
                odocstringstream ods;
-               // we have to provide all the optional arguments here, even though
-               // the last one is the only one we care about.
-               owner_->latex(bp, f, ods, tr, features.runparams(), 0, -1, true);
-               docstring const d = ods.str();
-               if (!d.empty()) {
-                       // this will have "{" at the beginning, but not at the end
-                       string const content = to_utf8(d);
-                       string const cmd = layout_->latexname();
-                       features.addPreambleSnippet("\\" + cmd + content + "}");
+               otexstream os(ods, texrow);
+               if (is_command) {
+                       os << '\\' << from_ascii(layout_->latexname());
+                       // we have to provide all the optional arguments here, even though
+                       // the last one is the only one we care about.
+                       // Separate handling of optional argument inset.
+                       if (!layout_->latexargs().empty()) {
+                               OutputParams rp = features.runparams();
+                               rp.local_font = &owner_->getFirstFontSettings(bp);
+                               latexArgInsets(*owner_, os, rp, layout_->latexargs());
+                       }
+                       os << from_ascii(layout_->latexparam());
+               }
+               docstring::size_type const length = ods.str().length();
+               // this will output "{" at the beginning, but not at the end
+               owner_->latex(bp, f, os, features.runparams(), 0, -1, true);
+               if (ods.str().length() > length) {
+                       if (is_command) {
+                               ods << '}';
+                               if (!layout_->postcommandargs().empty()) {
+                                       OutputParams rp = features.runparams();
+                                       rp.local_font = &owner_->getFirstFontSettings(bp);
+                                       latexArgInsets(*owner_, os, rp, layout_->postcommandargs(), "post:");
+                               }
+                       }
+                       string const snippet = to_utf8(ods.str());
+                       features.addPreambleSnippet(snippet);
                }
        }
 
        if (features.runparams().flavor == OutputParams::HTML
            && layout_->htmltitle()) {
-               features.setHTMLTitle(owner_->asString(AS_STR_INSETS));
+               features.setHTMLTitle(owner_->asString(AS_STR_INSETS | AS_STR_SKIPDELETE));
        }
 
        // check the params.
@@ -1574,6 +1729,7 @@ void Paragraph::appendChar(char_type c, Font const & font,
        // when appending characters, no need to update tables
        d->text_.push_back(c);
        setFont(d->text_.size() - 1, font);
+       d->requestSpellCheck(d->text_.size() - 1);
 }
 
 
@@ -1594,6 +1750,7 @@ void Paragraph::appendString(docstring const & s, Font const & font,
        for (size_t i = oldsize; i != newsize; ++i) {
                // track change
                d->changes_.insert(change, i);
+               d->requestSpellCheck(i);
        }
        d->fontlist_.set(oldsize, font);
        d->fontlist_.set(newsize - 1, font);
@@ -1773,16 +1930,23 @@ FontSize Paragraph::highestFontInRange
 char_type Paragraph::getUChar(BufferParams const & bparams, pos_type pos) const
 {
        char_type c = d->text_[pos];
-       if (!lyxrc.rtl_support)
+       if (!lyxrc.rtl_support || !getFontSettings(bparams, pos).isRightToLeft())
                return c;
 
+       // FIXME: The arabic special casing is due to the difference of arabic
+       // round brackets input introduced in r18599. Check if this should be
+       // unified with Hebrew or at least if all bracket types should be
+       // handled the same (file format change in either case).
+       string const & lang = getFontSettings(bparams, pos).language()->lang();
+       bool const arabic = lang == "arabic_arabtex" || lang == "arabic_arabi"
+               || lang == "farsi";
        char_type uc = c;
        switch (c) {
        case '(':
-               uc = ')';
+               uc = arabic ? c : ')';
                break;
        case ')':
-               uc = '(';
+               uc = arabic ? c : '(';
                break;
        case '[':
                uc = ']';
@@ -1803,9 +1967,8 @@ char_type Paragraph::getUChar(BufferParams const & bparams, pos_type pos) const
                uc = '<';
                break;
        }
-       if (uc != c && getFontSettings(bparams, pos).isRightToLeft())
-               return uc;
-       return c;
+
+       return uc;
 }
 
 
@@ -1923,8 +2086,7 @@ docstring Paragraph::expandParagraphLabel(Layout const & layout,
        bool const in_appendix = process_appendix && d->params_.appendix();
        docstring fmt = translateIfPossible(layout.labelstring(in_appendix), lang);
 
-       if (fmt.empty() && layout.labeltype == LABEL_COUNTER
-           && !layout.counter.empty())
+       if (fmt.empty() && !layout.counter.empty())
                return tclass.counters().theCounter(layout.counter, lang);
 
        // handle 'inherited level parts' in 'fmt',
@@ -2013,6 +2175,11 @@ bool Paragraph::usePlainLayout() const
 }
 
 
+bool Paragraph::isPassThru() const
+{
+       return inInset().isPassThru() || d->layout_->pass_thru;
+}
+
 namespace {
 
 // paragraphs inside floats need different alignment tags to avoid
@@ -2060,13 +2227,12 @@ string const corrected_env(string const & suffix, string const & env,
 }
 
 
-void adjust_row_column(string const & str, TexRow & texrow, int & column)
+void adjust_column(string const & str, int & column)
 {
        if (!contains(str, "\n"))
                column += str.size();
        else {
                string tmp;
-               texrow.newline();
                column = rsplit(str, tmp, '\n').size();
        }
 }
@@ -2075,12 +2241,11 @@ void adjust_row_column(string const & str, TexRow & texrow, int & column)
 
 
 int Paragraph::Private::startTeXParParams(BufferParams const & bparams,
-                                odocstream & os, TexRow & texrow,
-                                OutputParams const & runparams) const
+                       otexstream & os, OutputParams const & runparams) const
 {
        int column = 0;
 
-       if (params_.noindent()) {
+       if (params_.noindent() && !layout_->pass_thru) {
                os << "\\noindent ";
                column += 10;
        }
@@ -2125,7 +2290,7 @@ int Paragraph::Private::startTeXParParams(BufferParams const & bparams,
                else
                        output = corrected_env(begin_tag, "flushright", code, lastpar);
                os << from_ascii(output);
-               adjust_row_column(output, texrow, column);
+               adjust_column(output, column);
                break;
        } case LYX_ALIGN_RIGHT: {
                string output;
@@ -2134,13 +2299,13 @@ int Paragraph::Private::startTeXParParams(BufferParams const & bparams,
                else
                        output = corrected_env(begin_tag, "flushleft", code, lastpar);
                os << from_ascii(output);
-               adjust_row_column(output, texrow, column);
+               adjust_column(output, column);
                break;
        } case LYX_ALIGN_CENTER: {
                string output;
                output = corrected_env(begin_tag, "center", code, lastpar);
                os << from_ascii(output);
-               adjust_row_column(output, texrow, column);
+               adjust_column(output, column);
                break;
        }
        }
@@ -2149,16 +2314,13 @@ int Paragraph::Private::startTeXParParams(BufferParams const & bparams,
 }
 
 
-int Paragraph::Private::endTeXParParams(BufferParams const & bparams,
-                              odocstream & os, TexRow & texrow,
-                              OutputParams const & runparams) const
+bool Paragraph::Private::endTeXParParams(BufferParams const & bparams,
+                       otexstream & os, OutputParams const & runparams) const
 {
-       int column = 0;
-
        LyXAlignment const curAlign = params_.align();
 
        if (curAlign == layout_->align)
-               return column;
+               return false;
 
        switch (curAlign) {
        case LYX_ALIGN_NONE:
@@ -2170,13 +2332,12 @@ int Paragraph::Private::endTeXParParams(BufferParams const & bparams,
        case LYX_ALIGN_LEFT:
        case LYX_ALIGN_RIGHT:
        case LYX_ALIGN_CENTER:
-               if (runparams.moving_arg) {
+               if (runparams.moving_arg)
                        os << "\\protect";
-                       column = 8;
-               }
                break;
        }
 
+       string output;
        string const end_tag = "\n\\par\\end";
        InsetCode code = ownerCode();
        bool const lastpar = runparams.isLastPar;
@@ -2189,40 +2350,34 @@ int Paragraph::Private::endTeXParParams(BufferParams const & bparams,
        case LYX_ALIGN_DECIMAL:
                break;
        case LYX_ALIGN_LEFT: {
-               string output;
                if (owner_->getParLanguage(bparams)->babel() != "hebrew")
                        output = corrected_env(end_tag, "flushleft", code, lastpar);
                else
                        output = corrected_env(end_tag, "flushright", code, lastpar);
                os << from_ascii(output);
-               adjust_row_column(output, texrow, column);
                break;
        } case LYX_ALIGN_RIGHT: {
-               string output;
                if (owner_->getParLanguage(bparams)->babel() != "hebrew")
                        output = corrected_env(end_tag, "flushright", code, lastpar);
                else
                        output = corrected_env(end_tag, "flushleft", code, lastpar);
                os << from_ascii(output);
-               adjust_row_column(output, texrow, column);
                break;
        } case LYX_ALIGN_CENTER: {
-               string output;
                output = corrected_env(end_tag, "center", code, lastpar);
                os << from_ascii(output);
-               adjust_row_column(output, texrow, column);
                break;
        }
        }
 
-       return column;
+       return !output.empty() || lastpar;
 }
 
 
 // This one spits out the text of the paragraph
 void Paragraph::latex(BufferParams const & bparams,
        Font const & outerfont,
-       odocstream & os, TexRow & texrow,
+       otexstream & os,
        OutputParams const & runparams,
        int start_pos, int end_pos, bool force) const
 {
@@ -2253,6 +2408,10 @@ void Paragraph::latex(BufferParams const & bparams,
        if (body_pos > 0) {
                // the optional argument is kept in curly brackets in
                // case it contains a ']'
+               // This is not strictly needed, but if this is changed it
+               // would be a file format change, and tex2lyx would need
+               // to be adjusted, since it unconditionally removes the
+               // braces when it parses \item.
                os << "[{";
                column += 2;
                basefont = getLabelFont(bparams, outerfont);
@@ -2269,7 +2428,7 @@ void Paragraph::latex(BufferParams const & bparams,
 
        Encoding const * const prev_encoding = runparams.encoding;
 
-       texrow.start(id(), 0);
+       os.texrow().start(id(), 0);
 
        // if the paragraph is empty, the loop will not be entered at all
        if (empty()) {
@@ -2277,9 +2436,12 @@ void Paragraph::latex(BufferParams const & bparams,
                        os << '{';
                        ++column;
                }
+               if (!style.leftdelim().empty()) {
+                       os << style.leftdelim();
+                       column += style.leftdelim().size();
+               }
                if (allowcust)
-                       column += d->startTeXParParams(bparams, os, texrow,
-                                                   runparams);
+                       column += d->startTeXParParams(bparams, os, runparams);
        }
 
        for (pos_type i = 0; i < size(); ++i) {
@@ -2308,14 +2470,18 @@ void Paragraph::latex(BufferParams const & bparams,
                                ++column;
                        }
 
+                       if (!style.leftdelim().empty()) {
+                               os << style.leftdelim();
+                               column += style.leftdelim().size();
+                       }
+
                        if (allowcust)
                                column += d->startTeXParParams(bparams, os,
-                                                           texrow,
                                                            runparams);
                }
 
-               Change const & change = runparams.inDeletedInset ? runparams.changeOfDeletedInset
-                                                                : lookupChange(i);
+               Change const & change = runparams.inDeletedInset
+                       ? runparams.changeOfDeletedInset : lookupChange(i);
 
                if (bparams.outputChanges && runningChange != change) {
                        if (open_font) {
@@ -2356,12 +2522,16 @@ void Paragraph::latex(BufferParams const & bparams,
                        open_font = false;
                }
 
+               string const running_lang = runparams.use_polyglossia ?
+                       running_font.language()->polyglossia() : running_font.language()->babel();
                // close babel's font environment before opening CJK.
-               if (!running_font.language()->babel().empty() &&
+               string const lang_end_command = runparams.use_polyglossia ?
+                       "\\end{$$lang}" : lyxrc.language_command_end;
+               if (!running_lang.empty() &&
                    font.language()->encoding()->package() == Encoding::CJK) {
-                               string end_tag = subst(lyxrc.language_command_end,
+                               string end_tag = subst(lang_end_command,
                                                        "$$lang",
-                                                       running_font.language()->babel());
+                                                       running_lang);
                                os << from_ascii(end_tag);
                                column += end_tag.length();
                }
@@ -2370,8 +2540,9 @@ void Paragraph::latex(BufferParams const & bparams,
                if (!runparams.pass_thru && !style.pass_thru &&
                    runparams.encoding->package() != Encoding::none &&
                    font.language()->encoding()->package() != Encoding::none) {
-                       pair<bool, int> const enc_switch = switchEncoding(os, bparams,
-                                       runparams, *(font.language()->encoding()));
+                       pair<bool, int> const enc_switch =
+                               switchEncoding(os.os(), bparams, runparams,
+                                       *(font.language()->encoding()));
                        if (enc_switch.first) {
                                column += enc_switch.second;
                                runparams.encoding = font.language()->encoding();
@@ -2414,8 +2585,7 @@ void Paragraph::latex(BufferParams const & bparams,
                        // latexSpecialChar ignores spaces if
                        // style.pass_thru is false.
                        if (i != body_pos - 1) {
-                               if (d->simpleTeXBlanks(
-                                               runparams, os, texrow,
+                               if (d->simpleTeXBlanks(runparams, os,
                                                i, column, font, style)) {
                                        // A surrogate pair was output. We
                                        // must not call latexSpecialChar
@@ -2437,16 +2607,15 @@ void Paragraph::latex(BufferParams const & bparams,
                // and then split to handle the two modes separately.
                if (c == META_INSET) {
                        if (i >= start_pos && (end_pos == -1 || i < end_pos)) {
-                               d->latexInset(bparams, os,
-                                               texrow, rp, running_font,
+                               d->latexInset(bparams, os, rp, running_font,
                                                basefont, outerfont, open_font,
                                                runningChange, style, i, column);
                        }
                } else {
                        if (i >= start_pos && (end_pos == -1 || i < end_pos)) {
                                try {
-                                       d->latexSpecialChar(os, rp, running_font, runningChange,
-                                               style, i, column);
+                                       d->latexSpecialChar(os, bparams, rp, running_font, runningChange,
+                                                           style, i, end_pos, column);
                                } catch (EncodingException & e) {
                                if (runparams.dryrun) {
                                        os << "<" << _("LyX Warning: ")
@@ -2496,10 +2665,15 @@ void Paragraph::latex(BufferParams const & bparams,
                os << "}]~";
        }
 
-       if (allowcust && d->endTeXParParams(bparams, os, texrow, runparams)
+       if (!style.rightdelim().empty()) {
+               os << style.rightdelim();
+               column += style.rightdelim().size();
+       }
+
+       if (allowcust && d->endTeXParParams(bparams, os, runparams)
            && runparams.encoding != prev_encoding) {
                runparams.encoding = prev_encoding;
-               if (!bparams.useXetex)
+               if (!runparams.isFullUnicode())
                        os << setEncoding(prev_encoding->iconvName());
        }
 
@@ -2667,10 +2841,11 @@ docstring Paragraph::simpleLyXHTMLOnePar(Buffer const & buf,
 
        bool emph_flag = false;
        bool bold_flag = false;
-       string closing_tag;
 
        Layout const & style = *d->layout_;
 
+       xs.startParagraph(allowEmpty());
+
        if (!runparams.for_toc && runparams.html_make_pars) {
                // generate a magic label for this paragraph
                string const attr = "id='" + magicLabel() + "'";
@@ -2713,20 +2888,16 @@ docstring Paragraph::simpleLyXHTMLOnePar(Buffer const & buf,
 
                Inset const * inset = getInset(i);
                if (inset) {
-                       InsetCommand const * ic = inset->asInsetCommand();
-                       InsetLayout const & il = inset->getLayout();
-                       InsetMath const * im = inset->asInsetMath();
-                       if (!runparams.for_toc
-                           || im || il.isInToc() || (ic && ic->isInToc())) {
+                       if (!runparams.for_toc || inset->isInToc()) {
                                OutputParams np = runparams;
-                               if (!il.htmlisblock())
+                               if (!inset->getLayout().htmlisblock())
                                        np.html_in_par = true;
                                retval += inset->xhtml(xs, np);
                        }
                } else {
-                       char_type c = d->text_[i];
+                       char_type c = getUChar(buf.params(), i);
 
-                       if (style.pass_thru)
+                       if (style.pass_thru || runparams.pass_thru)
                                xs << c;
                        else if (c == '-') {
                                docstring str;
@@ -2746,7 +2917,7 @@ docstring Paragraph::simpleLyXHTMLOnePar(Buffer const & buf,
                                // We don't want to escape the entities. Note that
                                // it is safe to do this, since str can otherwise
                                // only be "-". E.g., it can't be "<".
-                               xs << XHTMLStream::NextRaw() << str;
+                               xs << XHTMLStream::ESCAPE_NONE << str;
                        } else
                                xs << c;
                }
@@ -2754,6 +2925,7 @@ docstring Paragraph::simpleLyXHTMLOnePar(Buffer const & buf,
        }
 
        xs.closeFontTags();
+       xs.endParagraph();
        return retval;
 }
 
@@ -2785,13 +2957,47 @@ bool Paragraph::isLineSeparator(pos_type pos) const
 
 bool Paragraph::isWordSeparator(pos_type pos) const
 {
+       if (pos == size())
+               return true;
        if (Inset const * inset = getInset(pos))
                return !inset->isLetter();
+       // if we have a hard hyphen (no en- or emdash) or apostrophe
+       // we pass this to the spell checker
+       // FIXME: this method is subject to change, visit
+       // https://bugzilla.mozilla.org/show_bug.cgi?id=355178
+       // to get an impression how complex this is.
+       if (isHardHyphenOrApostrophe(pos))
+               return false;
        char_type const c = d->text_[pos];
-       // We want to pass the ' and escape chars to the spellchecker
-       static docstring const quote = from_utf8(lyxrc.spellchecker_esc_chars + '\'');
-       return (!isLetterChar(c) && !isDigit(c) && !contains(quote, c))
-               || pos == size();
+       // We want to pass the escape chars to the spellchecker
+       docstring const escape_chars = from_utf8(lyxrc.spellchecker_esc_chars);
+       return !isLetterChar(c) && !isDigitASCII(c) && !contains(escape_chars, c);
+}
+
+
+bool Paragraph::isHardHyphenOrApostrophe(pos_type pos) const
+{
+       pos_type const psize = size();
+       if (pos >= psize)
+               return false;
+       char_type const c = d->text_[pos];
+       if (c != '-' && c != '\'')
+               return false;
+       int nextpos = pos + 1;
+       int prevpos = pos > 0 ? pos - 1 : 0;
+       if ((nextpos == psize || isSpace(nextpos))
+               && (pos == 0 || isSpace(prevpos)))
+               return false;
+       return c == '\''
+               || ((nextpos == psize || d->text_[nextpos] != '-')
+               && (pos == 0 || d->text_[prevpos] != '-'));
+}
+
+
+bool Paragraph::isSameSpellRange(pos_type pos1, pos_type pos2) const
+{
+       return pos1 == pos2
+               || d->speller_state_.getRange(pos1) == d->speller_state_.getRange(pos2);
 }
 
 
@@ -2800,7 +3006,7 @@ bool Paragraph::isChar(pos_type pos) const
        if (Inset const * inset = getInset(pos))
                return inset->isChar();
        char_type const c = d->text_[pos];
-       return !isLetterChar(c) && !isDigit(c) && !lyx::isSpace(c);
+       return !isLetterChar(c) && !isDigitASCII(c) && !lyx::isSpace(c);
 }
 
 
@@ -2840,9 +3046,9 @@ void Paragraph::changeLanguage(BufferParams const & bparams,
                if (font.language() == from) {
                        font.setLanguage(to);
                        setFont(i, font);
+                       d->requestSpellCheck(i);
                }
        }
-       d->requestSpellCheck(size());
 }
 
 
@@ -2891,12 +3097,14 @@ docstring Paragraph::asString(pos_type beg, pos_type end, int options) const
                os << d->params_.labelString() << ' ';
 
        for (pos_type i = beg; i < end; ++i) {
+               if ((options & AS_STR_SKIPDELETE) && isDeleted(i))
+                       continue;
                char_type const c = d->text_[i];
                if (isPrintable(c) || c == '\t'
                    || (c == '\n' && (options & AS_STR_NEWLINES)))
                        os.put(c);
                else if (c == META_INSET && (options & AS_STR_INSETS)) {
-                       getInset(i)->tocString(os);
+                       getInset(i)->toString(os);
                        if (getInset(i)->asInsetMath())
                                os << " ";
                }
@@ -2906,6 +3114,24 @@ docstring Paragraph::asString(pos_type beg, pos_type end, int options) const
 }
 
 
+void Paragraph::forToc(docstring & os, size_t maxlen) const
+{
+       if (!d->params_.labelString().empty())
+               os += d->params_.labelString() + ' ';
+       for (pos_type i = 0; i < size() && os.length() < maxlen; ++i) {
+               if (isDeleted(i))
+                       continue;
+               char_type const c = d->text_[i];
+               if (isPrintable(c))
+                       os += c;
+               else if (c == '\t' || c == '\n')
+                       os += ' ';
+               else if (c == META_INSET)
+                       getInset(i)->forToc(os, maxlen);
+       }
+}
+
+
 docstring Paragraph::stringify(pos_type beg, pos_type end, int options, OutputParams & runparams) const
 {
        odocstringstream os;
@@ -3056,71 +3282,61 @@ char_type Paragraph::transformChar(char_type c, pos_type pos) const
 }
 
 
-int Paragraph::checkBiblio(Buffer const & buffer)
+bool Paragraph::brokenBiblio() const
 {
-       // FIXME From JS:
-       // This is getting more and more a mess. ...We really should clean
-       // up this bibitem issue for 1.6. See also bug 2743.
+       // there is a problem if there is no bibitem at position 0 or
+       // if there is another bibitem in the paragraph.
+       return d->layout_->labeltype == LABEL_BIBLIO
+               && (d->insetlist_.find(BIBITEM_CODE) != 0
+                   || d->insetlist_.find(BIBITEM_CODE, 1) > 0);
+}
+
+
+int Paragraph::fixBiblio(Buffer const & buffer)
+{
+       // FIXME: What about the case where paragraph is not BIBLIO
+       // but there is an InsetBibitem?
+       // FIXME: when there was already an inset at 0, the return value is 1,
+       // which does not tell whether another inset has been remove; the
+       // cursor cannot be correctly updated.
 
-       // Add bibitem insets if necessary
        if (d->layout_->labeltype != LABEL_BIBLIO)
                return 0;
 
-       bool hasbibitem = !d->insetlist_.empty()
-               // Insist on it being in pos 0
-               && d->text_[0] == META_INSET
-               && d->insetlist_.begin()->inset->lyxCode() == BIBITEM_CODE;
-
-       bool track_changes = buffer.params().trackChanges;
-
-       docstring oldkey;
-       docstring oldlabel;
-
-       // remove a bibitem in pos != 0
-       // restore it later in pos 0 if necessary
-       // (e.g. if a user inserts contents _before_ the item)
-       // we're assuming there's only one of these, which there
-       // should be.
-       int erasedInsetPosition = -1;
-       InsetList::iterator it = d->insetlist_.begin();
-       InsetList::iterator end = d->insetlist_.end();
-       for (; it != end; ++it)
-               if (it->inset->lyxCode() == BIBITEM_CODE
-                   && it->pos > 0) {
-                       InsetBibitem * olditem = static_cast<InsetBibitem *>(it->inset);
-                       oldkey = olditem->getParam("key");
-                       oldlabel = olditem->getParam("label");
-                       erasedInsetPosition = it->pos;
-                       eraseChar(erasedInsetPosition, track_changes);
-                       break;
-       }
+       bool const track_changes = buffer.params().trackChanges;
+       int bibitem_pos = d->insetlist_.find(BIBITEM_CODE);
+       bool const hasbibitem0 = bibitem_pos == 0;
 
-       // There was an InsetBibitem at the beginning, and we didn't
-       // have to erase one.
-       if (hasbibitem && erasedInsetPosition < 0)
+       if (hasbibitem0) {
+               bibitem_pos = d->insetlist_.find(BIBITEM_CODE, 1);
+               // There was an InsetBibitem at pos 0, and no other one => OK
+               if (bibitem_pos == -1)
                        return 0;
+               // there is a bibitem at the 0 position, but since
+               // there is a second one, we copy the second on the
+               // first. We're assuming there are at most two of
+               // these, which there should be.
+               // FIXME: why does it make sense to do that rather
+               // than keep the first? (JMarc)
+               Inset * inset = d->insetlist_.release(bibitem_pos);
+               eraseChar(bibitem_pos, track_changes);
+               d->insetlist_.begin()->inset = inset;
+               return -bibitem_pos;
+       }
+
+       // We need to create an inset at the beginning
+       Inset * inset = 0;
+       if (bibitem_pos > 0) {
+               // there was one somewhere in the paragraph, let's move it
+               inset = d->insetlist_.release(bibitem_pos);
+               eraseChar(bibitem_pos, track_changes);
+       } else
+               // make a fresh one
+               inset = new InsetBibitem(const_cast<Buffer *>(&buffer),
+                                        InsetCommandParams(BIBITEM_CODE));
 
-       // There was an InsetBibitem at the beginning and we did have to
-       // erase one. So we give its properties to the beginning inset.
-       if (hasbibitem) {
-               InsetBibitem * inset =
-                       static_cast<InsetBibitem *>(d->insetlist_.begin()->inset);
-               if (!oldkey.empty())
-                       inset->setParam("key", oldkey);
-               inset->setParam("label", oldlabel);
-               return -erasedInsetPosition;
-       }
-
-       // There was no inset at the beginning, so we need to create one with
-       // the key and label of the one we erased.
-       InsetBibitem * inset =
-               new InsetBibitem(const_cast<Buffer *>(&buffer), InsetCommandParams(BIBITEM_CODE));
-       // restore values of previously deleted item in this par.
-       if (!oldkey.empty())
-               inset->setParam("key", oldkey);
-       inset->setParam("label", oldlabel);
-       insertInset(0, static_cast<Inset *>(inset),
-                   Change(track_changes ? Change::INSERTED : Change::UNCHANGED));
+       insertInset(0, inset, Change(track_changes ? Change::INSERTED 
+                                                  : Change::UNCHANGED));
 
        return 1;
 }
@@ -3249,36 +3465,44 @@ void Paragraph::changeCase(BufferParams const & bparams, pos_type pos,
 }
 
 
-bool Paragraph::find(docstring const & str, bool cs, bool mw,
-               pos_type pos, bool del) const
+int Paragraph::find(docstring const & str, bool cs, bool mw,
+               pos_type start_pos, bool del) const
 {
+       pos_type pos = start_pos;
        int const strsize = str.length();
        int i = 0;
        pos_type const parsize = d->text_.size();
-       for (i = 0; pos + i < parsize; ++i) {
-               if (i >= strsize)
-                       break;
-               if (cs && str[i] != d->text_[pos + i])
+       for (i = 0; i < strsize && pos < parsize; ++i, ++pos) {
+               // Ignore "invisible" letters such as ligature breaks
+               // and hyphenation chars while searching
+               while (pos < parsize - 1 && isInset(pos)) {
+                       odocstringstream os;
+                       getInset(pos)->toString(os);
+                       if (!getInset(pos)->isLetter() || !os.str().empty())
+                               break;
+                       pos++;
+               }
+               if (cs && str[i] != d->text_[pos])
                        break;
-               if (!cs && uppercase(str[i]) != uppercase(d->text_[pos + i]))
+               if (!cs && uppercase(str[i]) != uppercase(d->text_[pos]))
                        break;
-               if (!del && isDeleted(pos + i))
+               if (!del && isDeleted(pos))
                        break;
        }
 
        if (i != strsize)
-               return false;
+               return 0;
 
        // if necessary, check whether string matches word
        if (mw) {
-               if (pos > 0 && !isWordSeparator(pos - 1))
-                       return false;
-               if (pos + strsize < parsize
-                       && !isWordSeparator(pos + strsize))
-                       return false;
+               if (start_pos > 0 && !isWordSeparator(start_pos - 1))
+                       return 0;
+               if (pos < parsize
+                       && !isWordSeparator(pos))
+                       return 0;
        }
 
-       return true;
+       return pos - start_pos;
 }
 
 
@@ -3367,16 +3591,13 @@ void Paragraph::locateWord(pos_type & from, pos_type & to,
 
 void Paragraph::collectWords()
 {
-       // This is the value that needs to be exposed in the preferences
-       // to resolve bug #6760.
-       static int minlength = 6;
        pos_type n = size();
        for (pos_type pos = 0; pos < n; ++pos) {
                if (isWordSeparator(pos))
                        continue;
                pos_type from = pos;
                locateWord(from, pos, WHOLE_WORD);
-               if (pos - from >= minlength) {
+               if ((pos - from) >= (int)lyxrc.completion_minlength) {
                        docstring word = asString(from, pos, AS_STR_NONE);
                        FontList::const_iterator cit = d->fontlist_.fontIterator(pos);
                        if (cit == d->fontlist_.end())
@@ -3410,9 +3631,24 @@ void Paragraph::updateWords()
 }
 
 
+void Paragraph::Private::appendSkipPosition(SkipPositions & skips, pos_type const pos) const
+{
+       SkipPositionsIterator begin = skips.begin();
+       SkipPositions::iterator end = skips.end();
+       if (pos > 0 && begin < end) {
+               --end;
+               if (end->last == pos - 1) {
+                       end->last = pos;
+                       return;
+               }
+       }
+       skips.insert(end, FontSpan(pos, pos));
+}
+
+
 Language * Paragraph::Private::locateSpellRange(
        pos_type & from, pos_type & to,
-       Positions & softbreaks) const
+       SkipPositions & skips) const
 {
        // skip leading white space
        while (from < to && owner_->isWordSeparator(from))
@@ -3429,7 +3665,9 @@ Language * Paragraph::Private::locateSpellRange(
                // hop to end of word
                while (last < to && !owner_->isWordSeparator(last)) {
                        if (owner_->getInset(last)) {
-                               softbreaks.insert(softbreaks.end(), last);
+                               appendSkipPosition(skips, last);
+                       } else if (owner_->isDeleted(last)) {
+                               appendSkipPosition(skips, last);
                        }
                        ++last;
                }
@@ -3437,6 +3675,9 @@ Language * Paragraph::Private::locateSpellRange(
                while (sameinset && last < to && owner_->isWordSeparator(last)) {
                        if (Inset const * inset = owner_->getInset(last))
                                sameinset = inset->isChar() && inset->isLetter();
+                       if (sameinset && owner_->isDeleted(last)) {
+                               appendSkipPosition(skips, last);
+                       }
                        if (sameinset)
                                last++;
                }
@@ -3472,7 +3713,7 @@ Language * Paragraph::Private::getSpellLanguage(pos_type const from) const
 
 void Paragraph::requestSpellCheck(pos_type pos)
 {
-       d->requestSpellCheck(pos == -1 ? size() : pos);
+       d->requestSpellCheck(pos);
 }
 
 
@@ -3488,6 +3729,21 @@ bool Paragraph::needsSpellCheck() const
 }
 
 
+bool Paragraph::Private::ignoreWord(docstring const & word) const
+{
+       // Ignore words with digits
+       // FIXME: make this customizable
+       // (note that some checkers ignore words with digits by default)
+       docstring::const_iterator cit = word.begin();
+       docstring::const_iterator const end = word.end();
+       for (; cit != end; ++cit) {
+               if (isNumber((*cit)))
+                       return true;
+       }
+       return false;
+}
+
+
 SpellChecker::Result Paragraph::spellCheck(pos_type & from, pos_type & to,
        WordLangTuple & wl, docstring_list & suggestions,
        bool do_suggestion, bool check_learned) const
@@ -3504,19 +3760,17 @@ SpellChecker::Result Paragraph::spellCheck(pos_type & from, pos_type & to,
        if (from == to || from >= size())
                return result;
 
-       docstring word = asString(from, to, AS_STR_INSETS);
+       docstring word = asString(from, to, AS_STR_INSETS | AS_STR_SKIPDELETE);
        Language * lang = d->getSpellLanguage(from);
 
        wl = WordLangTuple(word, lang);
 
-       if (!word.size())
+       if (word.empty())
                return result;
 
        if (needsSpellCheck() || check_learned) {
-               // Ignore words with digits
-               // FIXME: make this customizable
-               // (note that some checkers ignore words with digits by default)
-               if (!hasDigit(word)) {
+               pos_type end = to;
+               if (!d->ignoreWord(word)) {
                        bool const trailing_dot = to < size() && d->text_[to] == '.';
                        result = speller->check(wl);
                        if (SpellChecker::misspelled(result) && trailing_dot) {
@@ -3526,24 +3780,34 @@ SpellChecker::Result Paragraph::spellCheck(pos_type & from, pos_type & to,
                                        LYXERR(Debug::GUI, "misspelled word is correct with dot: \"" <<
                                           word << "\" [" <<
                                           from << ".." << to << "]");
+                               } else {
+                                       // spell check with dot appended failed too
+                                       // restore original word/lang value
+                                       word = asString(from, to, AS_STR_INSETS | AS_STR_SKIPDELETE);
+                                       wl = WordLangTuple(word, lang);
                                }
                        }
                }
-               d->setMisspelled(from, to, result);
+               if (!SpellChecker::misspelled(result)) {
+                       // area up to the begin of the next word is not misspelled
+                       while (end < size() && isWordSeparator(end))
+                               ++end;
+               }
+               d->setMisspelled(from, end, result);
        } else {
                result = d->speller_state_.getState(from);
        }
 
-       bool const misspelled_ = SpellChecker::misspelled(result) ;
-       if (misspelled_ && do_suggestion)
-               speller->suggest(wl, suggestions);
-       else if (misspelled_)
+       if (do_suggestion)
+               suggestions.clear();
+
+       if (SpellChecker::misspelled(result)) {
                LYXERR(Debug::GUI, "misspelled word: \"" <<
                           word << "\" [" <<
                           from << ".." << to << "]");
-       else
-               suggestions.clear();
-
+               if (do_suggestion)
+                       speller->suggest(wl, suggestions);
+       }
        return result;
 }
 
@@ -3552,7 +3816,7 @@ void Paragraph::Private::markMisspelledWords(
        pos_type const & first, pos_type const & last,
        SpellChecker::Result result,
        docstring const & word,
-       Positions const & softbreaks)
+       SkipPositions const & skips)
 {
        if (!SpellChecker::misspelled(result)) {
                setMisspelled(first, last, SpellChecker::WORD_OK);
@@ -3562,9 +3826,9 @@ void Paragraph::Private::markMisspelledWords(
        SpellChecker * speller = theSpellChecker();
        // locate and enumerate the error positions
        int nerrors = speller->numMisspelledWords();
-       int numbreaks = 0;
-       PositionsIterator it = softbreaks.begin();
-       PositionsIterator et = softbreaks.end();
+       int numskipped = 0;
+       SkipPositionsIterator it = skips.begin();
+       SkipPositionsIterator et = skips.end();
        for (int index = 0; index < nerrors; ++index) {
                int wstart;
                int wlen = 0;
@@ -3572,15 +3836,15 @@ void Paragraph::Private::markMisspelledWords(
                /// should not happen if speller supports range checks
                if (!wlen) continue;
                docstring const misspelled = word.substr(wstart, wlen);
-               wstart += first + numbreaks;
+               wstart += first + numskipped;
                if (snext < wstart) {
                        /// mark the range of correct spelling
-                       numbreaks += countSoftbreaks(it, et, wstart);
+                       numskipped += countSkips(it, et, wstart);
                        setMisspelled(snext,
                                wstart - 1, SpellChecker::WORD_OK);
                }
                snext = wstart + wlen;
-               numbreaks += countSoftbreaks(it, et, snext);
+               numskipped += countSkips(it, et, snext);
                /// mark the range of misspelling
                setMisspelled(wstart, snext, result);
                LYXERR(Debug::GUI, "misspelled word: \"" <<
@@ -3598,7 +3862,7 @@ void Paragraph::Private::markMisspelledWords(
 void Paragraph::spellCheck() const
 {
        SpellChecker * speller = theSpellChecker();
-       if (!speller || !size() ||!needsSpellCheck())
+       if (!speller || empty() ||!needsSpellCheck())
                return;
        pos_type start;
        pos_type endpos;
@@ -3607,16 +3871,16 @@ void Paragraph::spellCheck() const
                // loop until we leave the range
                for (pos_type first = start; first < endpos; ) {
                        pos_type last = endpos;
-                       Private::Positions softbreaks;
-                       Language * lang = d->locateSpellRange(first, last, softbreaks);
+                       Private::SkipPositions skips;
+                       Language * lang = d->locateSpellRange(first, last, skips);
                        if (first >= endpos)
                                break;
                        // start the spell checker on the unit of meaning
-                       docstring word = asString(first, last, AS_STR_INSETS);
+                       docstring word = asString(first, last, AS_STR_INSETS + AS_STR_SKIPDELETE);
                        WordLangTuple wl = WordLangTuple(word, lang);
                        SpellChecker::Result result = word.size() ?
                                speller->check(wl) : SpellChecker::WORD_OK;
-                       d->markMisspelledWords(first, last, result, word, softbreaks);
+                       d->markMisspelledWords(first, last, result, word, skips);
                        first = ++last;
                }
        } else {
@@ -3632,9 +3896,14 @@ void Paragraph::spellCheck() const
 }
 
 
-bool Paragraph::isMisspelled(pos_type pos) const
+bool Paragraph::isMisspelled(pos_type pos, bool check_boundary) const
 {
-       return SpellChecker::misspelled(d->speller_state_.getState(pos));
+       bool result = SpellChecker::misspelled(d->speller_state_.getState(pos));
+       if (result || pos <= 0 || pos > size())
+               return result;
+       if (check_boundary && (pos == size() || isWordSeparator(pos)))
+               result = SpellChecker::misspelled(d->speller_state_.getState(pos - 1));
+       return result;
 }