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[lyx.git] / src / Paragraph.cpp
index a6c72c310e0b22a07b1251132133a1d02899041a..5bad896dfdf4e13f0a09bc9d1597e52290332e16 100644 (file)
@@ -314,13 +314,15 @@ public:
 
        /// Output the surrogate pair formed by \p c and \p next to \p os.
        /// \return the number of characters written.
-       int latexSurrogatePair(otexstream & os, char_type c, char_type next,
+       int latexSurrogatePair(BufferParams const &, 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 &,
+       bool simpleTeXBlanks(BufferParams const &,
+                            OutputParams const &,
                             otexstream &,
                             pos_type i,
                             unsigned int & column,
@@ -330,8 +332,11 @@ 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(otexstream & os, docstring const & ltx,
-                          Change const &, Encoding const &, pos_type & i);
+       int writeScriptChars(BufferParams const &, OutputParams const &,
+                            otexstream & os,
+                            docstring const & ltx,
+                            Change const &, Encoding const &,
+                            std::string const, pos_type & i);
 
        /// This could go to ParagraphParameters if we want to.
        int startTeXParParams(BufferParams const &, otexstream &,
@@ -865,8 +870,9 @@ int Paragraph::eraseChars(pos_type start, pos_type end, bool trackChanges)
 }
 
 
-int Paragraph::Private::latexSurrogatePair(otexstream & os, char_type c,
-               char_type next, OutputParams const & runparams)
+int Paragraph::Private::latexSurrogatePair(BufferParams const & bparams,
+               otexstream & os, char_type c, char_type next,
+               OutputParams const & runparams)
 {
        // Writing next here may circumvent a possible font change between
        // c and next. Since next is only output if it forms a surrogate pair
@@ -883,23 +889,63 @@ int Paragraph::Private::latexSurrogatePair(otexstream & os, char_type c,
                        latex1 = from_ascii(tipashortcut);
                }
        }
-       docstring const latex2 = encoding.latexChar(c).first;
+       docstring latex2 = encoding.latexChar(c).first;
+
        if (docstring(1, next) == latex1) {
-               // the encoding supports the combination
+               // The encoding supports the combination:
+               // output as is (combining char after base char).
                os << latex2 << latex1;
                return latex1.length() + latex2.length();
-       } else if (runparams.local_font &&
-                  runparams.local_font->language()->lang() == "polutonikogreek") {
-               // polutonikogreek only works without the brackets
-               os << latex1 << latex2;
-               return latex1.length() + latex2.length();
-       } else
-               os << latex1 << '{' << latex2 << '}';
-       return latex1.length() + latex2.length() + 2;
+       }
+
+       // Handle combining characters in "script" context (i.e., \textgreek and \textcyrillic)
+       docstring::size_type const brace1 = latex2.find_first_of(from_ascii("{"));
+       docstring::size_type const brace2 = latex2.find_last_of(from_ascii("}"));
+       string script = to_ascii(latex2.substr(1, brace1 - 1));
+       // "Script chars" need to embraced in \textcyrillic and \textgreek notwithstanding
+       // whether they are encodable or not (it only depends on the font encoding)
+       if (!runparams.isFullUnicode())
+               // This will get us a script value to deal with below
+               Encodings::isKnownScriptChar(c, script);
+       int pos = 0;
+       int length = brace2;
+       string fontenc;
+       if (runparams.local_font)
+               fontenc = runparams.local_font->language()->fontenc(bparams);
+       else
+               fontenc = bparams.language->fontenc(bparams);
+       docstring scriptmacro;
+       docstring cb;
+       if (script == "textgreek" || script == "textcyrillic") {
+               // We separate the script macro (\text[greek|cyr]) from the rest,
+               // since we need to include the combining char in it (#6463).
+               // This is "the rest":
+               pos = brace1 + 1;
+               length -= pos;
+               latex2 = latex2.substr(pos, length);
+               // We only need the script macro with non-native font encodings
+               if (Encodings::needsScriptWrapper(script, fontenc)) {
+                       scriptmacro = from_ascii("\\" + script + "{");
+                       cb = from_ascii("}");
+               }
+       }
+
+       docstring lb;
+       docstring rb;
+       // polutonikogreek does not play nice with brackets
+       if (!runparams.local_font
+           || runparams.local_font->language()->lang() != "polutonikogreek") {
+               lb = from_ascii("{");
+               rb = from_ascii("}");
+       }
+
+       os << scriptmacro << latex1 << lb << latex2 << rb << cb;
+       return latex1.length() + latex2.length() + lb.length() + rb.length() + cb.length();
 }
 
 
-bool Paragraph::Private::simpleTeXBlanks(OutputParams const & runparams,
+bool Paragraph::Private::simpleTeXBlanks(BufferParams const & bparams,
+                                      OutputParams const & runparams,
                                       otexstream & os,
                                       pos_type i,
                                       unsigned int & column,
@@ -913,7 +959,7 @@ bool Paragraph::Private::simpleTeXBlanks(OutputParams const & runparams,
                char_type next = text_[i + 1];
                if (Encodings::isCombiningChar(next)) {
                        // This space has an accent, so we must always output it.
-                       column += latexSurrogatePair(os, ' ', next, runparams) - 1;
+                       column += latexSurrogatePair(bparams, os, ' ', next, runparams) - 1;
                        return true;
                }
        }
@@ -944,10 +990,13 @@ bool Paragraph::Private::simpleTeXBlanks(OutputParams const & runparams,
 }
 
 
-int Paragraph::Private::writeScriptChars(otexstream & os,
+int Paragraph::Private::writeScriptChars(BufferParams const & bparams,
+                                        OutputParams const & runparams,
+                                        otexstream & os,
                                         docstring const & ltx,
                                         Change const & runningChange,
                                         Encoding const & encoding,
+                                        string const fontenc,
                                         pos_type & i)
 {
        // FIXME: modifying i here is not very nice...
@@ -955,10 +1004,6 @@ int Paragraph::Private::writeScriptChars(otexstream & os,
        // We only arrive here when character text_[i] could not be translated
        // into the current latex encoding (or its latex translation has been forced,)
        // and it belongs to a known script.
-       // TODO: We need \textcyr and \textgreek wrappers also for characters
-       //       that can be encoded in the "LaTeX encoding" but not in the
-       //       current *font encoding*.
-       //       (See #9681 for details and test)
        // Parameter ltx contains the latex translation of text_[i] as specified
        // in the unicodesymbols file and is something like "\textXXX{<spec>}".
        // The latex macro name "textXXX" specifies the script to which text_[i]
@@ -972,12 +1017,8 @@ int Paragraph::Private::writeScriptChars(otexstream & os,
        int pos = 0;
        int length = brace2;
        bool closing_brace = true;
-       if (script == "textgreek" && encoding.latexName() == "iso-8859-7") {
-               // Correct encoding is being used, so we can avoid \textgreek.
-               // TODO: wrong test: we need to check the *font encoding*
-               //       (i.e. the active language and its FontEncoding tag)
-               //       instead of the LaTeX *input encoding*!
-               //       See #9637 for details and test-cases.
+       if (!Encodings::needsScriptWrapper(script, fontenc)) {
+               // Correct font encoding is being used, so we can avoid \text[greek|cyr].
                pos = brace1 + 1;
                length -= pos;
                closing_brace = false;
@@ -1006,6 +1047,18 @@ int Paragraph::Private::writeScriptChars(otexstream & os,
                // Stop here if there is a font attribute or encoding change.
                if (found && cit != end && prev_font != cit->font())
                        break;
+
+               // Check whether we have a combining pair
+               char_type next_next = '\0';
+               if (i + 2 < size) {
+                       next_next = text_[i + 2];
+                       if (Encodings::isCombiningChar(next_next)) {
+                               length += latexSurrogatePair(bparams, os, next, next_next, runparams) - 1;
+                               i += 2;
+                               continue;
+                       }
+               }
+
                docstring const latex = encoding.latexChar(next).first;
                docstring::size_type const b1 =
                                        latex.find_first_of(from_ascii("{"));
@@ -1090,13 +1143,15 @@ void Paragraph::Private::latexInset(BufferParams const & bparams,
        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
            && inset->lyxCode() != ERT_CODE) {
-               if (running_font.language()->lang() == "farsi")
-                       os << "\\beginL" << termcmd;
+               if (runparams.use_polyglossia) {
+                       os << "\\LRE{";
+               } else if (running_font.language()->lang() == "farsi"
+                          || running_font.language()->lang() == "arabic_arabi")
+                       os << "\\textLR{" << termcmd;
                else
                        os << "\\L{";
                close = true;
@@ -1152,12 +1207,8 @@ void Paragraph::Private::latexInset(BufferParams const & bparams,
                throw(e);
        }
 
-       if (close) {
-               if (running_font.language()->lang() == "farsi")
-                               os << "\\endL" << termcmd;
-                       else
-                               os << '}';
-       }
+       if (close)
+               os << '}';
 
        if (os.texrow().rows() > previous_row_count) {
                os.texrow().start(owner_->id(), i + 1);
@@ -1181,10 +1232,7 @@ void Paragraph::Private::latexSpecialChar(otexstream & os,
                                          pos_type end_pos,
                                          unsigned int & column)
 {
-       // 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];
+       char_type const c = owner_->getUChar(bparams, runparams, i);
 
        if (style.pass_thru || runparams.pass_thru
            || contains(style.pass_thru_chars, c)
@@ -1238,10 +1286,8 @@ void Paragraph::Private::latexSpecialChar(otexstream & os,
                if (i + 1 < static_cast<pos_type>(text_.size()) &&
                    (end_pos == -1 || i + 1 < end_pos) &&
                    text_[i+1] == '-') {
-                       // Prevent "--" becoming an endash and "---" becoming
-                       // an emdash.
-                       // Within \ttfamily, "--" is merged to "-" (no endash)
-                       // so we avoid this rather irritating ligature as well
+                       // Prevent "--" becoming an en dash and "---" an em dash.
+                       // (Within \ttfamily, "---" is merged to en dash + hyphen.)
                        os << "{}";
                        column += 2;
                }
@@ -1292,6 +1338,9 @@ void Paragraph::Private::latexSpecialChar(otexstream & os,
                // XeTeX's dash behaviour is determined via a global setting
                if (bparams.use_dash_ligatures
                    && owner_->getFontSettings(bparams, i).fontInfo().family() != TYPEWRITER_FAMILY
+                   && !runparams.inIPA
+                       // TODO #10961: && not in inset Flex Code
+                       // TODO #10961: && not in layout LyXCode
                    && (!bparams.useNonTeXFonts || runparams.flavor != OutputParams::XETEX)) {
                        if (c == 0x2013) {
                                // en-dash
@@ -1314,7 +1363,7 @@ void Paragraph::Private::latexSpecialChar(otexstream & os,
                if (i + 1 < int(text_.size())) {
                        next = text_[i + 1];
                        if (Encodings::isCombiningChar(next)) {
-                               column += latexSurrogatePair(os, c, next, runparams) - 1;
+                               column += latexSurrogatePair(bparams, os, c, next, runparams) - 1;
                                ++i;
                                break;
                        }
@@ -1340,11 +1389,18 @@ void Paragraph::Private::latexSpecialChar(otexstream & os,
                                tipas = true;
                        }
                }
-               if (Encodings::isKnownScriptChar(c, script)
-                   && prefixIs(latex.first, from_ascii("\\" + script)))
-                       column += writeScriptChars(os, latex.first,
-                                       running_change, encoding, i) - 1;
-               else if (latex.second
+               string fontenc;
+               fontenc = running_font.language()->fontenc(bparams);
+               // "Script chars" need to embraced in \textcyrillic and \textgreek notwithstanding
+               // whether they are encodable or not (it only depends on the font encoding)
+               if (!runparams.isFullUnicode() && Encodings::isKnownScriptChar(c, script)) {
+                       docstring const wrapper = from_ascii("\\" + script + "{");
+                       docstring ltx = latex.first;
+                       if (!prefixIs(ltx, wrapper))
+                               ltx = wrapper + latex.first + from_ascii("}");
+                       column += writeScriptChars(bparams, runparams, os, ltx, running_change,
+                                                  encoding, fontenc, i) - 1;
+               } else if (latex.second
                         && ((!prefixIs(nextlatex, '\\')
                               && !prefixIs(nextlatex, '{')
                               && !prefixIs(nextlatex, '}'))
@@ -1420,14 +1476,6 @@ bool Paragraph::Private::latexSpecialT3(char_type const c, otexstream & os,
                os << "\\textvertline" << termcmd;
                column += 14;
                return true;
-       case 0x2013:
-               os << "\\textendash" << termcmd;
-               column += 12;
-               return true;
-       case 0x2014:
-               os << "\\textemdash" << termcmd;
-               column += 12;
-               return true;
        default:
                return false;
        }
@@ -1436,44 +1484,19 @@ bool Paragraph::Private::latexSpecialT3(char_type const c, otexstream & os,
 
 void Paragraph::Private::validate(LaTeXFeatures & features) const
 {
-       Buffer const & buf = inset_owner_->buffer();
-       BufferParams const & bp = features.runparams().is_child
-               ? buf.masterParams() : buf.params();
        if (layout_->inpreamble && inset_owner_) {
-               bool const is_command = layout_->latextype == LATEX_COMMAND;
-               Font f;
-               // Using a string stream here circumvents the encoding
+               // FIXME: 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.
+               Buffer const & buf = inset_owner_->buffer();
                otexstringstream os;
                os << layout_->preamble();
-               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());
-               }
                size_t const length = os.length();
-               // this will output "{" at the beginning, but not at the end
-               owner_->latex(bp, f, os, features.runparams(), 0, -1, true);
-               if (os.length() > length) {
-                       if (is_command) {
-                               os << '}';
-                               if (!layout_->postcommandargs().empty()) {
-                                       OutputParams rp = features.runparams();
-                                       rp.local_font = &owner_->getFirstFontSettings(bp);
-                                       latexArgInsets(*owner_, os, rp, layout_->postcommandargs(), "post:");
-                               }
-                       }
+               TeXOnePar(buf, buf.text(), buf.getParFromID(owner_->id()).pit(), os,
+                         features.runparams(), string(), 0, -1, true);
+               if (os.length() > length)
                        features.addPreambleSnippet(os.release(), true);
-               }
        }
 
        if (features.runparams().flavor == OutputParams::HTML
@@ -1520,19 +1543,58 @@ void Paragraph::Private::validate(LaTeXFeatures & features) const
        }
 
        // then the contents
+       BufferParams const bp = features.runparams().is_child
+               ? features.buffer().masterParams() : features.buffer().params();
        for (pos_type i = 0; i < int(text_.size()) ; ++i) {
                char_type c = text_[i];
+               CharInfo const & ci = Encodings::unicodeCharInfo(c);
                if (c == 0x0022) {
                        if (features.runparams().isFullUnicode() && bp.useNonTeXFonts)
                                features.require("textquotedblp");
                        else if (bp.main_font_encoding() != "T1"
                                 || ((&owner_->getFontSettings(bp, i))->language()->internalFontEncoding()))
                                features.require("textquotedbl");
-               }
-               if (!bp.use_dash_ligatures
-                   && (c == 0x2013 || c == 0x2014)
-                   && bp.useNonTeXFonts
-                   && features.runparams().flavor == OutputParams::XETEX)
+               } else if (ci.textfeature() && contains(ci.textpreamble(), '=')) {
+                       // features that depend on the font or input encoding
+                       string feats = ci.textpreamble();
+                       string fontenc = (&owner_->getFontSettings(bp, i))->language()->fontenc(bp);
+                       if (fontenc.empty())
+                               fontenc = features.runparams().main_fontenc;
+                       while (!feats.empty()) {
+                               string feat;
+                               feats = split(feats, feat, ',');
+                               if (contains(feat, "!=")) {
+                                       // a feature that is required except for the spcified
+                                       // font or input encodings
+                                       string realfeature;
+                                       string const contexts = ltrim(split(feat, realfeature, '!'), "=");
+                                       // multiple encodings are separated by semicolon
+                                       vector<string> context = getVectorFromString(contexts, ";");
+                                       // require feature if the context matches neither current font
+                                       // nor input encoding
+                                       if (std::find(context.begin(), context.end(), fontenc) == context.end()
+                                           && std::find(context.begin(), context.end(),
+                                                        features.runparams().encoding->name()) == context.end())
+                                               features.require(realfeature);
+                               } else if (contains(feat, '=')) {
+                                       // a feature that is required only for the spcified
+                                       // font or input encodings
+                                       string realfeature;
+                                       string const contexts = split(feat, realfeature, '=');
+                                       // multiple encodings are separated by semicolon
+                                       vector<string> context = getVectorFromString(contexts, ";");
+                                       // require feature if the context matches either current font
+                                       // or input encoding
+                                       if (std::find(context.begin(), context.end(), fontenc) != context.end()
+                                           || std::find(context.begin(), context.end(),
+                                                        features.runparams().encoding->name()) != context.end())
+                                               features.require(realfeature);
+                               }
+                       }
+               } else if (!bp.use_dash_ligatures
+                          && (c == 0x2013 || c == 0x2014)
+                          && bp.useNonTeXFonts
+                          && features.runparams().flavor == OutputParams::XETEX)
                        // XeTeX's dash behaviour is determined via a global setting
                        features.require("xetexdashbreakstate");
                BufferEncodings::validate(c, features);
@@ -1724,6 +1786,10 @@ void Paragraph::write(ostream & os, BufferParams const & bparams,
 void Paragraph::validate(LaTeXFeatures & features) const
 {
        d->validate(features);
+       bool fragile = features.runparams().moving_arg;
+       fragile |= layout().needprotect;
+       if (needsCProtection(fragile))
+               features.require("cprotect");
 }
 
 
@@ -1926,32 +1992,57 @@ Font const Paragraph::getLayoutFont
 }
 
 
-char_type Paragraph::getUChar(BufferParams const & bparams, pos_type pos) const
+char_type Paragraph::getUChar(BufferParams const & bparams,
+                             OutputParams const & rp,
+                             pos_type pos) const
 {
        char_type c = d->text_[pos];
-       if (!getFontSettings(bparams, pos).isRightToLeft())
+
+       // Return unchanged character in LTR languages
+       // or if we use poylglossia/bidi.
+       if (rp.use_polyglossia || !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).
+       // Without polyglossia/bidi, we need to account for some special cases.
+       // FIXME This needs to be audited!
+       // Check if:
+       // * The input is as expected for all delimiters
+       //   => checked for Hebrew!
+       // * The output matches the display in the LyX workarea
+       //   => checked for Hebrew!
+       // * The special cases below are really necessary
+       //   => checked for Hebrew!
+       // * In arabic_arabi, brackets are transformed to Arabic
+       //   Ornate Parentheses. Is this is really wanted?
+
        string const & lang = getFontSettings(bparams, pos).language()->lang();
-       bool const arabic = lang == "arabic_arabtex" || lang == "arabic_arabi"
-               || lang == "farsi";
        char_type uc = c;
+
+       // 1. In the following languages, parentheses need to be reversed.
+       bool const reverseparens = lang == "hebrew";
+
+       // 2. In the following languages, brackets don't need to be reversed.
+       bool const reversebrackets = lang != "arabic_arabtex"
+                       && lang != "arabic_arabi"
+                       && lang != "farsi";
+
+       // Now swap delimiters if needed.
        switch (c) {
        case '(':
-               uc = arabic ? c : ')';
+               if (reverseparens)
+                       uc = ')';
                break;
        case ')':
-               uc = arabic ? c : '(';
+               if (reverseparens)
+                       uc = '(';
                break;
        case '[':
-               uc = ']';
+               if (reversebrackets)
+                       uc = ']';
                break;
        case ']':
-               uc = '[';
+               if (reversebrackets)
+                       uc = '[';
                break;
        case '{':
                uc = '}';
@@ -2287,13 +2378,13 @@ int Paragraph::Private::startTeXParParams(BufferParams const & bparams,
        case LYX_ALIGN_DECIMAL:
                break;
        case LYX_ALIGN_LEFT: {
-               if (owner_->getParLanguage(bparams)->babel() != "hebrew")
+               if (!owner_->getParLanguage(bparams)->rightToLeft())
                        corrected_env(os, begin_tag, "flushleft", code, lastpar, column);
                else
                        corrected_env(os, begin_tag, "flushright", code, lastpar, column);
                break;
        } case LYX_ALIGN_RIGHT: {
-               if (owner_->getParLanguage(bparams)->babel() != "hebrew")
+               if (!owner_->getParLanguage(bparams)->rightToLeft())
                        corrected_env(os, begin_tag, "flushright", code, lastpar, column);
                else
                        corrected_env(os, begin_tag, "flushleft", code, lastpar, column);
@@ -2345,13 +2436,13 @@ bool Paragraph::Private::endTeXParParams(BufferParams const & bparams,
        case LYX_ALIGN_DECIMAL:
                break;
        case LYX_ALIGN_LEFT: {
-               if (owner_->getParLanguage(bparams)->babel() != "hebrew")
+               if (!owner_->getParLanguage(bparams)->rightToLeft())
                        output = corrected_env(os, end_tag, "flushleft", code, lastpar, col);
                else
                        output = corrected_env(os, end_tag, "flushright", code, lastpar, col);
                break;
        } case LYX_ALIGN_RIGHT: {
-               if (owner_->getParLanguage(bparams)->babel() != "hebrew")
+               if (!owner_->getParLanguage(bparams)->rightToLeft())
                        output = corrected_env(os, end_tag, "flushright", code, lastpar, col);
                else
                        output = corrected_env(os, end_tag, "flushleft", code, lastpar, col);
@@ -2424,7 +2515,9 @@ void Paragraph::latex(BufferParams const & bparams,
 
        // if the paragraph is empty, the loop will not be entered at all
        if (empty()) {
-               if (style.isCommand()) {
+               // For InTitle commands, we have already opened a group
+               // in output_latex::TeXOnePar.
+               if (style.isCommand() && !style.intitle) {
                        os << '{';
                        ++column;
                }
@@ -2462,7 +2555,9 @@ void Paragraph::latex(BufferParams const & bparams,
                                os << "}] ";
                                column +=3;
                        }
-                       if (style.isCommand()) {
+                       // For InTitle commands, we have already opened a group
+                       // in output_latex::TeXOnePar.
+                       if (style.isCommand() && !style.intitle) {
                                os << '{';
                                ++column;
                        }
@@ -2650,7 +2745,7 @@ 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,
+                               if (d->simpleTeXBlanks(bparams, runparams, os,
                                                i, column, current_font, style)) {
                                        // A surrogate pair was output. We
                                        // must not call latexSpecialChar
@@ -2687,7 +2782,7 @@ void Paragraph::latex(BufferParams const & bparams,
                                        ParagraphList const & pars =
                                                textinset->text().paragraphs();
                                        pit_type const pit = pars.size() - 1;
-                                       Font const last_font =
+                                       Font const lastfont =
                                                pit < 0 || pars[pit].empty()
                                                ? pars[pit].getLayoutFont(
                                                                bparams,
@@ -2695,7 +2790,7 @@ void Paragraph::latex(BufferParams const & bparams,
                                                : pars[pit].getFont(bparams,
                                                        pars[pit].size() - 1,
                                                        outerfont);
-                                       if (last_font.fontInfo().size() !=
+                                       if (lastfont.fontInfo().size() !=
                                            basefont.fontInfo().size()) {
                                                ++parInline;
                                                incremented = true;
@@ -3312,7 +3407,8 @@ docstring Paragraph::simpleLyXHTMLOnePar(Buffer const & buf,
                                retval += inset->xhtml(xs, np);
                        }
                } else {
-                       char_type c = getUChar(buf.masterBuffer()->params(), i);
+                       char_type c = getUChar(buf.masterBuffer()->params(),
+                                              runparams, i);
                        xs << c;
                }
                font_old = font.fontInfo();
@@ -3402,6 +3498,41 @@ bool Paragraph::isHardHyphenOrApostrophe(pos_type pos) const
 }
 
 
+bool Paragraph::needsCProtection(bool const fragile) const
+{
+       // first check the layout of the paragraph, but only in insets
+       InsetText const * textinset = inInset().asInsetText();
+       bool const maintext = textinset
+               ? textinset->text().isMainText()
+               : false;
+
+       if (!maintext && layout().needcprotect) {
+               // Environments need cprotection regardless the content
+               if (layout().latextype == LATEX_ENVIRONMENT)
+                       return true;
+
+               // Commands need cprotection if they contain specific chars
+               int const nchars_escape = 9;
+               static char_type const chars_escape[nchars_escape] = {
+                       '&', '_', '$', '%', '#', '^', '{', '}', '\\'};
+
+               docstring const pars = asString();
+               for (int k = 0; k < nchars_escape; k++) {
+                       if (contains(pars, chars_escape[k]))
+                               return true;
+               }
+       }
+
+       // now check whether we have insets that need cprotection
+       pos_type size = d->text_.size();
+       for (pos_type i = 0; i < size; ++i)
+               if (isInset(i) && getInset(i)->needsCProtection(maintext, fragile))
+                       return true;
+
+       return false;
+}
+
+
 FontSpan const & Paragraph::getSpellRange(pos_type pos) const
 {
        return d->speller_state_.getRange(pos);
@@ -3461,28 +3592,22 @@ void Paragraph::changeLanguage(BufferParams const & bparams,
 bool Paragraph::isMultiLingual(BufferParams const & bparams) const
 {
        Language const * doc_language = bparams.language;
-       FontList::const_iterator cit = d->fontlist_.begin();
-       FontList::const_iterator end = d->fontlist_.end();
-
-       for (; cit != end; ++cit)
-               if (cit->font().language() != ignore_language &&
-                   cit->font().language() != latex_language &&
-                   cit->font().language() != doc_language)
+       for (auto const & f : d->fontlist_)
+               if (f.font().language() != ignore_language &&
+                   f.font().language() != latex_language &&
+                   f.font().language() != doc_language)
                        return true;
        return false;
 }
 
 
-void Paragraph::getLanguages(std::set<Language const *> & languages) const
+void Paragraph::getLanguages(std::set<Language const *> & langs) const
 {
-       FontList::const_iterator cit = d->fontlist_.begin();
-       FontList::const_iterator end = d->fontlist_.end();
-
-       for (; cit != end; ++cit) {
-               Language const * lang = cit->font().language();
+       for (auto const & f : d->fontlist_) {
+               Language const * lang = f.font().language();
                if (lang != ignore_language &&
                    lang != latex_language)
-                       languages.insert(lang);
+                       langs.insert(lang);
        }
 }
 
@@ -3529,6 +3654,8 @@ void Paragraph::forOutliner(docstring & os, size_t const maxlen,
        size_t tmplen = shorten ? maxlen + 1 : maxlen;
        if (label && !labelString().empty())
                os += labelString() + ' ';
+       if (!layout().isTocCaption())
+               return;
        for (pos_type i = 0; i < size() && os.length() < tmplen; ++i) {
                if (isDeleted(i))
                        continue;
@@ -4125,6 +4252,9 @@ SpellChecker::Result Paragraph::spellCheck(pos_type & from, pos_type & to,
        docstring word = asString(from, to, AS_STR_INSETS | AS_STR_SKIPDELETE);
        Language * lang = d->getSpellLanguage(from);
 
+       if (getFontSettings(d->inset_owner_->buffer().params(), from).fontInfo().nospellcheck() == FONT_ON)
+               return result;
+
        wl = WordLangTuple(word, lang);
 
        if (word.empty())
@@ -4174,6 +4304,15 @@ SpellChecker::Result Paragraph::spellCheck(pos_type & from, pos_type & to,
 }
 
 
+void Paragraph::anonymize()
+{
+       // This is a very crude anonymization for now
+       for (char_type & c : d->text_)
+               if (isLetterChar(c) || isNumber(c))
+                       c = 'a';
+}
+
+
 void Paragraph::Private::markMisspelledWords(
        pos_type const & first, pos_type const & last,
        SpellChecker::Result result,