]> git.lyx.org Git - lyx.git/blobdiff - src/BufferParams.cpp
Update stats display if a stat is (un)selected
[lyx.git] / src / BufferParams.cpp
index b1cedda6fa5b29682e64946ab7b52f7b35e0ce5c..d25dd05bac2e55da31f0afe52be4446e7a0e0fb1 100644 (file)
 #include "LayoutFile.h"
 #include "BranchList.h"
 #include "Buffer.h"
-#include "buffer_funcs.h"
 #include "Bullet.h"
 #include "CiteEnginesList.h"
 #include "Color.h"
 #include "ColorSet.h"
 #include "Converter.h"
 #include "Encoding.h"
+#include "Format.h"
 #include "IndicesList.h"
 #include "Language.h"
 #include "LaTeXFeatures.h"
 #include "LaTeXFonts.h"
-#include "Length.h"
-#include "ModuleList.h"
 #include "Font.h"
 #include "Lexer.h"
 #include "LyXRC.h"
 #include "frontends/alert.h"
 
 #include "insets/InsetListingsParams.h"
+#include "insets/InsetQuotes.h"
 
 #include "support/convert.h"
 #include "support/debug.h"
-#include "support/docstream.h"
 #include "support/FileName.h"
 #include "support/filetools.h"
 #include "support/gettext.h"
+#include "support/Length.h"
 #include "support/Messages.h"
 #include "support/mutex.h"
 #include "support/Package.h"
@@ -74,7 +73,8 @@ static char const * const string_paragraph_separation[] = {
 
 static char const * const string_quotes_style[] = {
        "english", "swedish", "german", "polish", "swiss", "danish", "plain",
-       "british", "swedishg", "french", "frenchin", "russian", "cjk", "cjkangle", ""
+       "british", "swedishg", "french", "frenchin", "russian", "cjk", "cjkangle",
+       "hungarian", ""
 };
 
 
@@ -137,26 +137,27 @@ ParSepTranslator const & parseptranslator()
 
 
 // Quotes style
-typedef Translator<string, InsetQuotesParams::QuoteStyle> QuotesStyleTranslator;
+typedef Translator<string, QuoteStyle> QuotesStyleTranslator;
 
 
 QuotesStyleTranslator const init_quotesstyletranslator()
 {
        QuotesStyleTranslator translator
-               (string_quotes_style[0], InsetQuotesParams::EnglishQuotes);
-       translator.addPair(string_quotes_style[1], InsetQuotesParams::SwedishQuotes);
-       translator.addPair(string_quotes_style[2], InsetQuotesParams::GermanQuotes);
-       translator.addPair(string_quotes_style[3], InsetQuotesParams::PolishQuotes);
-       translator.addPair(string_quotes_style[4], InsetQuotesParams::SwissQuotes);
-       translator.addPair(string_quotes_style[5], InsetQuotesParams::DanishQuotes);
-       translator.addPair(string_quotes_style[6], InsetQuotesParams::PlainQuotes);
-       translator.addPair(string_quotes_style[7], InsetQuotesParams::BritishQuotes);
-       translator.addPair(string_quotes_style[8], InsetQuotesParams::SwedishGQuotes);
-       translator.addPair(string_quotes_style[9], InsetQuotesParams::FrenchQuotes);
-       translator.addPair(string_quotes_style[10], InsetQuotesParams::FrenchINQuotes);
-       translator.addPair(string_quotes_style[11], InsetQuotesParams::RussianQuotes);
-       translator.addPair(string_quotes_style[12], InsetQuotesParams::CJKQuotes);
-       translator.addPair(string_quotes_style[13], InsetQuotesParams::CJKAngleQuotes);
+               (string_quotes_style[0], QuoteStyle::English);
+       translator.addPair(string_quotes_style[1], QuoteStyle::Swedish);
+       translator.addPair(string_quotes_style[2], QuoteStyle::German);
+       translator.addPair(string_quotes_style[3], QuoteStyle::Polish);
+       translator.addPair(string_quotes_style[4], QuoteStyle::Swiss);
+       translator.addPair(string_quotes_style[5], QuoteStyle::Danish);
+       translator.addPair(string_quotes_style[6], QuoteStyle::Plain);
+       translator.addPair(string_quotes_style[7], QuoteStyle::British);
+       translator.addPair(string_quotes_style[8], QuoteStyle::SwedishG);
+       translator.addPair(string_quotes_style[9], QuoteStyle::French);
+       translator.addPair(string_quotes_style[10], QuoteStyle::FrenchIN);
+       translator.addPair(string_quotes_style[11], QuoteStyle::Russian);
+       translator.addPair(string_quotes_style[12], QuoteStyle::CJK);
+       translator.addPair(string_quotes_style[13], QuoteStyle::CJKAngle);
+       translator.addPair(string_quotes_style[14], QuoteStyle::Hungarian);
        return translator;
 }
 
@@ -340,6 +341,7 @@ public:
 
        AuthorList authorlist;
        BranchList branchlist;
+       WordLangTable spellignore;
        Bullet temp_bullets[4];
        Bullet user_defined_bullets[4];
        IndicesList indiceslist;
@@ -395,7 +397,7 @@ BufferParams::BufferParams()
        paragraph_separation = ParagraphIndentSeparation;
        is_math_indent = false;
        math_numbering_side = DEFAULT;
-       quotes_style = InsetQuotesParams::EnglishQuotes;
+       quotes_style = QuoteStyle::English;
        dynamic_quotes = false;
        fontsize = "default";
 
@@ -413,7 +415,7 @@ BufferParams::BufferParams()
        change_bars = false;
        postpone_fragile_content = true;
        use_default_options = true;
-       maintain_unincluded_children = false;
+       maintain_unincluded_children = CM_None;
        secnumdepth = 3;
        tocdepth = 3;
        language = default_language;
@@ -449,6 +451,8 @@ BufferParams::BufferParams()
        listings_params = string();
        pagestyle = "default";
        tablestyle = "default";
+       float_alignment = "class";
+       float_placement = "class";
        suppress_date = false;
        justification = true;
        // no color is the default (white)
@@ -459,7 +463,9 @@ BufferParams::BufferParams()
        isfontcolor = false;
        // light gray is the default font color for greyed-out notes
        notefontcolor = lyx::rgbFromHexName("#cccccc");
+       isnotefontcolor = false;
        boxbgcolor = lyx::rgbFromHexName("#ff0000");
+       isboxbgcolor = false;
        compressed = lyxrc.save_compressed;
        for (int iter = 0; iter < 4; ++iter) {
                user_defined_bullet(iter) = ITEMIZE_DEFAULTS[iter];
@@ -471,6 +477,8 @@ BufferParams::BufferParams()
        html_math_output = MathML;
        html_math_img_scale = 1.0;
        html_css_as_file = false;
+       docbook_table_output = HTMLTable;
+       docbook_mathml_prefix = MPrefix;
        display_pixel_ratio = 1.0;
 
        shell_escape = false;
@@ -564,7 +572,7 @@ AuthorList const & BufferParams::authors() const
 }
 
 
-void BufferParams::addAuthor(Author a)
+void BufferParams::addAuthor(Author const & a)
 {
        author_map_[a.bufferId()] = pimpl_->authorlist.record(a);
 }
@@ -594,6 +602,35 @@ IndicesList const & BufferParams::indiceslist() const
 }
 
 
+WordLangTable & BufferParams::spellignore()
+{
+       return pimpl_->spellignore;
+}
+
+
+WordLangTable const & BufferParams::spellignore() const
+{
+       return pimpl_->spellignore;
+}
+
+
+bool BufferParams::spellignored(WordLangTuple const & wl) const
+{
+       bool has_item = false;
+       vector<WordLangTuple> il = spellignore();
+       vector<WordLangTuple>::const_iterator it = il.begin();
+       for (; it != il.end(); ++it) {
+               if (it->lang()->code() != wl.lang()->code())
+                       continue;
+               if (it->word() == wl.word()) {
+                       has_item = true;
+                       break;
+               }
+       }
+       return has_item;
+}
+
+
 Bullet & BufferParams::temp_bullet(lyx::size_type const index)
 {
        LASSERT(index < 4, return pimpl_->temp_bullets[0]);
@@ -698,9 +735,10 @@ BufferParams::MathNumber BufferParams::getMathNumber() const
 
 
 string BufferParams::readToken(Lexer & lex, string const & token,
-       FileName const & filepath)
+       FileName const & filename)
 {
        string result;
+       FileName const & filepath = filename.onlyPath();
 
        if (token == "\\textclass") {
                lex.next();
@@ -769,6 +807,8 @@ string BufferParams::readToken(Lexer & lex, string const & token,
                                origin.replace(0, sysdirprefix.length() - 1,
                                        package().system_support().absFileName());
                }
+       } else if (token == "\\begin_metadata") {
+               readDocumentMetadata(lex);
        } else if (token == "\\begin_preamble") {
                readPreamble(lex);
        } else if (token == "\\begin_local_layout") {
@@ -782,7 +822,14 @@ string BufferParams::readToken(Lexer & lex, string const & token,
        } else if (token == "\\begin_includeonly") {
                readIncludeonly(lex);
        } else if (token == "\\maintain_unincluded_children") {
-               lex >> maintain_unincluded_children;
+               string tmp;
+               lex >> tmp;
+               if (tmp == "no")
+                       maintain_unincluded_children = CM_None;
+               else if (tmp == "mostly")
+                       maintain_unincluded_children = CM_Mostly;
+               else if (tmp == "strict")
+                       maintain_unincluded_children = CM_Strict;
        } else if (token == "\\options") {
                lex.eatLine();
                options = lex.getString();
@@ -979,14 +1026,13 @@ string BufferParams::readToken(Lexer & lex, string const & token,
                        }
                        if (tok == "\\color") {
                                lex.eatLine();
-                               string color = lex.getString();
+                               vector<string> const colors = getVectorFromString(lex.getString(), " ");
+                               string const lmcolor = colors.front();
+                               string dmcolor;
+                               if (colors.size() > 1)
+                                       dmcolor = colors.back();
                                if (branch_ptr)
-                                       branch_ptr->setColor(color);
-                               // Update also the Color table:
-                               if (color == "none")
-                                       color = lcolor.getX11Name(Color_background);
-                               // FIXME UNICODE
-                               lcolor.setColor(to_utf8(branch), color);
+                                       branch_ptr->setColors(lmcolor, dmcolor);
                        }
                }
        } else if (token == "\\index") {
@@ -1013,12 +1059,20 @@ string BufferParams::readToken(Lexer & lex, string const & token,
                                        index_ptr->setColor(color);
                                // Update also the Color table:
                                if (color == "none")
-                                       color = lcolor.getX11Name(Color_background);
+                                       color = lcolor.getX11HexName(Color_background);
                                // FIXME UNICODE
                                if (!shortcut.empty())
-                                       lcolor.setColor(to_utf8(shortcut), color);
+                                       lcolor.setColor(to_utf8(shortcut)+ "@" + filename.absFileName(), color);
                        }
                }
+       } else if (token == "\\spellchecker_ignore") {
+               lex.eatLine();
+               docstring wl = lex.getDocString();
+               docstring language;
+               docstring word = split(wl, language, ' ');
+               Language const * lang = languages.getLanguage(to_ascii(language));
+               if (lang)
+                       spellignore().push_back(WordLangTuple(word, lang));
        } else if (token == "\\author") {
                lex.eatLine();
                istringstream ss(lex.getString());
@@ -1042,11 +1096,17 @@ string BufferParams::readToken(Lexer & lex, string const & token,
                string color = lex.getString();
                notefontcolor = lyx::rgbFromHexName(color);
                lcolor.setColor("notefontcolor", color);
+               lcolor.setLaTeXName("notefontcolor", "note_fontcolor");
+               lcolor.setGUIName("notefontcolor", N_("greyedout inset text"));
+               // set a local name for the painter
+               lcolor.setColor("notefontcolor@" + filename.absFileName(), color);
+               isnotefontcolor = true;
        } else if (token == "\\boxbgcolor") {
                lex.eatLine();
                string color = lex.getString();
                boxbgcolor = lyx::rgbFromHexName(color);
-               lcolor.setColor("boxbgcolor", color);
+               lcolor.setColor("boxbgcolor@" + filename.absFileName(), color);
+               isboxbgcolor = true;
        } else if (token == "\\paperwidth") {
                lex >> paperwidth;
        } else if (token == "\\paperheight") {
@@ -1127,6 +1187,14 @@ string BufferParams::readToken(Lexer & lex, string const & token,
        } else if (token == "\\html_latex_end") {
                lex.eatLine();
                html_latex_end = lex.getString();
+       } else if (token == "\\docbook_table_output") {
+               int temp;
+               lex >> temp;
+               docbook_table_output = static_cast<TableOutput>(temp);
+       } else if (token == "\\docbook_mathml_prefix") {
+               int temp;
+               lex >> temp;
+               docbook_mathml_prefix = static_cast<MathMLNameSpacePrefix>(temp);
        } else if (token == "\\output_sync") {
                lex >> output_sync;
        } else if (token == "\\output_sync_macro") {
@@ -1189,6 +1257,15 @@ void BufferParams::writeFile(ostream & os, Buffer const * buf) const
                                                baseClass()->name()), "layout"))
           << '\n';
 
+       // then document metadata
+       if (!document_metadata.empty()) {
+               // remove '\n' from the end of document_metadata
+               docstring const tmpmd = rtrim(document_metadata, "\n");
+               os << "\\begin_metadata\n"
+                  << to_utf8(tmpmd)
+                  << "\n\\end_metadata\n";
+       }
+
        // then the preamble
        if (!preamble.empty()) {
                // remove '\n' from the end of preamble
@@ -1215,34 +1292,39 @@ void BufferParams::writeFile(ostream & os, Buffer const * buf) const
        // removed modules
        if (!removed_modules_.empty()) {
                os << "\\begin_removed_modules" << '\n';
-               list<string>::const_iterator it = removed_modules_.begin();
-               list<string>::const_iterator en = removed_modules_.end();
-               for (; it != en; ++it)
-                       os << *it << '\n';
+               for (auto const & mod : removed_modules_)
+                       os << mod << '\n';
                os << "\\end_removed_modules" << '\n';
        }
 
        // the modules
        if (!layout_modules_.empty()) {
                os << "\\begin_modules" << '\n';
-               LayoutModuleList::const_iterator it = layout_modules_.begin();
-               LayoutModuleList::const_iterator en = layout_modules_.end();
-               for (; it != en; ++it)
-                       os << *it << '\n';
+               for (auto const & mod : layout_modules_)
+                       os << mod << '\n';
                os << "\\end_modules" << '\n';
        }
 
        // includeonly
        if (!included_children_.empty()) {
                os << "\\begin_includeonly" << '\n';
-               list<string>::const_iterator it = included_children_.begin();
-               list<string>::const_iterator en = included_children_.end();
-               for (; it != en; ++it)
-                       os << *it << '\n';
+               for (auto const & c : included_children_)
+                       os << c << '\n';
                os << "\\end_includeonly" << '\n';
        }
-       os << "\\maintain_unincluded_children "
-          << convert<string>(maintain_unincluded_children) << '\n';
+       string muc = "no";
+       switch (maintain_unincluded_children) {
+       case CM_Mostly:
+               muc = "mostly";
+               break;
+       case CM_Strict:
+               muc = "strict";
+               break;
+       case CM_None:
+       default:
+               break;
+       }
+       os << "\\maintain_unincluded_children " << muc << '\n';
 
        // local layout information
        docstring const local_layout = getLocalLayout(false);
@@ -1317,10 +1399,9 @@ void BufferParams::writeFile(ostream & os, Buffer const * buf) const
        os << "\\papersize " << string_papersize[papersize]
           << "\n\\use_geometry " << convert<string>(use_geometry);
        map<string, string> const & packages = auto_packages();
-       for (map<string, string>::const_iterator it = packages.begin();
-            it != packages.end(); ++it)
-               os << "\n\\use_package " << it->first << ' '
-                  << use_package(it->first);
+       for (auto const & pack : packages)
+               os << "\n\\use_package " << pack.first << ' '
+                  << use_package(pack.first);
 
        os << "\n\\cite_engine ";
 
@@ -1355,36 +1436,38 @@ void BufferParams::writeFile(ostream & os, Buffer const * buf) const
        if (!lineno_opts.empty())
                os << "\\lineno_options " << lineno_opts << '\n';
 
-       if (isbackgroundcolor == true)
+       if (isbackgroundcolor)
                os << "\\backgroundcolor " << lyx::X11hexname(backgroundcolor) << '\n';
-       if (isfontcolor == true)
+       if (isfontcolor)
                os << "\\fontcolor " << lyx::X11hexname(fontcolor) << '\n';
-       if (notefontcolor != lyx::rgbFromHexName("#cccccc"))
+       if (isnotefontcolor)
                os << "\\notefontcolor " << lyx::X11hexname(notefontcolor) << '\n';
-       if (boxbgcolor != lyx::rgbFromHexName("#ff0000"))
+       if (isboxbgcolor)
                os << "\\boxbgcolor " << lyx::X11hexname(boxbgcolor) << '\n';
 
-       BranchList::const_iterator it = branchlist().begin();
-       BranchList::const_iterator end = branchlist().end();
-       for (; it != end; ++it) {
-               os << "\\branch " << to_utf8(it->branch())
-                  << "\n\\selected " << it->isSelected()
-                  << "\n\\filename_suffix " << it->hasFileNameSuffix()
-                  << "\n\\color " << lyx::X11hexname(it->color())
+       for (auto const & br : branchlist()) {
+               os << "\\branch " << to_utf8(br.branch())
+                  << "\n\\selected " << br.isSelected()
+                  << "\n\\filename_suffix " << br.hasFileNameSuffix()
+                  << "\n\\color " << br.lightModeColor() << " " << br.darkModeColor()
                   << "\n\\end_branch"
                   << "\n";
        }
 
-       IndicesList::const_iterator iit = indiceslist().begin();
-       IndicesList::const_iterator iend = indiceslist().end();
-       for (; iit != iend; ++iit) {
-               os << "\\index " << to_utf8(iit->index())
-                  << "\n\\shortcut " << to_utf8(iit->shortcut())
-                  << "\n\\color " << lyx::X11hexname(iit->color())
+       for (auto const & id : indiceslist()) {
+               os << "\\index " << to_utf8(id.index())
+                  << "\n\\shortcut " << to_utf8(id.shortcut())
+                  << "\n\\color " << lyx::X11hexname(id.color())
                   << "\n\\end_index"
                   << "\n";
        }
 
+       for (auto const & si : spellignore()) {
+               os << "\\spellchecker_ignore " << si.lang()->lang()
+                  << " " << to_utf8(si.word())
+                  << "\n";
+       }
+
        if (!paperwidth.empty())
                os << "\\paperwidth "
                   << VSpace(paperwidth).asLyXCommand() << '\n';
@@ -1440,7 +1523,7 @@ void BufferParams::writeFile(ostream & os, Buffer const * buf) const
                os << "default";
        }
        os << "\n\\quotes_style "
-          << string_quotes_style[quotes_style]
+          << string_quotes_style[static_cast<int>(quotes_style)]
           << "\n\\dynamic_quotes " << dynamic_quotes
           << "\n\\papercolumns " << columns
           << "\n\\papersides " << sides
@@ -1484,6 +1567,9 @@ void BufferParams::writeFile(ostream & os, Buffer const * buf) const
           << "\\html_css_as_file " << html_css_as_file << '\n'
           << "\\html_be_strict " << convert<string>(html_be_strict) << '\n';
 
+       os << "\\docbook_table_output " << docbook_table_output << '\n';
+       os << "\\docbook_mathml_prefix " << docbook_mathml_prefix << '\n';
+
        if (html_math_img_scale != 1.0)
                os << "\\html_math_img_scale " << convert<string>(html_math_img_scale) << '\n';
        if (!html_latex_start.empty())
@@ -1497,23 +1583,19 @@ void BufferParams::writeFile(ostream & os, Buffer const * buf) const
 
 void BufferParams::validate(LaTeXFeatures & features) const
 {
-       features.require(documentClass().requires());
+       features.require(documentClass().required());
 
        if (columns > 1 && language->rightToLeft())
                features.require("rtloutputdblcol");
 
        if (output_changes) {
-               bool dvipost    = LaTeXFeatures::isAvailable("dvipost");
                bool xcolorulem = LaTeXFeatures::isAvailable("ulem") &&
                                  LaTeXFeatures::isAvailable("xcolor");
 
                switch (features.runparams().flavor) {
-               case OutputParams::LATEX:
-               case OutputParams::DVILUATEX:
-                       if (dvipost) {
-                               features.require("ct-dvipost");
-                               features.require("dvipost");
-                       } else if (xcolorulem) {
+               case Flavor::LaTeX:
+               case Flavor::DviLuaTeX:
+                       if (xcolorulem) {
                                features.require("ct-xcolor-ulem");
                                features.require("ulem");
                                features.require("xcolor");
@@ -1521,9 +1603,9 @@ void BufferParams::validate(LaTeXFeatures & features) const
                                features.require("ct-none");
                        }
                        break;
-               case OutputParams::LUATEX:
-               case OutputParams::PDFLATEX:
-               case OutputParams::XETEX:
+               case Flavor::LuaTeX:
+               case Flavor::PdfLaTeX:
+               case Flavor::XeTeX:
                        if (xcolorulem) {
                                features.require("ct-xcolor-ulem");
                                features.require("ulem");
@@ -1545,15 +1627,14 @@ void BufferParams::validate(LaTeXFeatures & features) const
        if (float_placement.find('H') != string::npos)
                features.require("float");
 
-       for (PackageMap::const_iterator it = use_packages.begin();
-            it != use_packages.end(); ++it) {
-               if (it->first == "amsmath") {
+       for (auto const & pm : use_packages) {
+               if (pm.first == "amsmath") {
                        // AMS Style is at document level
-                       if (it->second == package_on ||
+                       if (pm.second == package_on ||
                            features.isProvided("amsmath"))
-                               features.require(it->first);
-               } else if (it->second == package_on)
-                       features.require(it->first);
+                               features.require(pm.first);
+               } else if (pm.second == package_on)
+                       features.require(pm.first);
        }
 
        // Document-level line spacing
@@ -1610,14 +1691,64 @@ void BufferParams::validate(LaTeXFeatures & features) const
        if (use_microtype)
                features.require("microtype");
 
-       if (!language->requires().empty())
-               features.require(language->requires());
+       if (!language->required().empty())
+               features.require(language->required());
 }
 
 
 bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
                              FileName const & filepath) const
 {
+       // DocumentMetadata must come before anything else
+       if (features.isAvailable("LaTeX-2022/06/01")
+           && !containsOnly(document_metadata, " \n\t")) {
+               // Check if the user preamble contains uncodable glyphs
+               odocstringstream doc_metadata;
+               docstring uncodable_glyphs;
+               Encoding const * const enc = features.runparams().encoding;
+               if (enc) {
+                       for (char_type c : document_metadata) {
+                               if (!enc->encodable(c)) {
+                                       docstring const glyph(1, c);
+                                       LYXERR0("Uncodable character '"
+                                               << glyph
+                                               << "' in document metadata!");
+                                       uncodable_glyphs += glyph;
+                                       if (features.runparams().dryrun) {
+                                               doc_metadata << "<" << _("LyX Warning: ")
+                                                  << _("uncodable character") << " '";
+                                               doc_metadata.put(c);
+                                               doc_metadata << "'>";
+                                       }
+                               } else
+                                       doc_metadata.put(c);
+                       }
+               } else
+                       doc_metadata << document_metadata;
+
+               // On BUFFER_VIEW|UPDATE, warn user if we found uncodable glyphs
+               if (!features.runparams().dryrun && !uncodable_glyphs.empty()) {
+                       frontend::Alert::warning(
+                               _("Uncodable character in document metadata"),
+                               support::bformat(
+                                 _("The metadata of your document contains glyphs "
+                                   "that are unknown in the current document encoding "
+                                   "(namely %1$s).\nThese glyphs are omitted "
+                                   " from the output, which may result in "
+                                   "incomplete output."
+                                   "\n\nPlease select an appropriate "
+                                   "document encoding\n"
+                                   "(such as utf8) or change the "
+                                   "preamble code accordingly."),
+                                 uncodable_glyphs));
+               }
+               if (!doc_metadata.str().empty()) {
+                       os << "\\DocumentMetadata{\n"
+                          << doc_metadata.str()
+                          << "}\n";
+               }
+       }
+
        // http://www.tug.org/texmf-dist/doc/latex/base/fixltx2e.pdf
        // !! To use the Fix-cm package, load it before \documentclass, and use the command
        // \RequirePackage to do so, rather than the normal \usepackage
@@ -1722,20 +1853,63 @@ bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
        if (!options.empty()) {
                clsoptions << options << ',';
        }
-
-       string strOptions(clsoptions.str());
+       
+       docstring const strOptions = from_utf8(clsoptions.str());
        if (!strOptions.empty()) {
-               strOptions = rtrim(strOptions, ",");
-               // FIXME UNICODE
-               os << '[' << from_utf8(strOptions) << ']';
+               // Check if class options contain uncodable glyphs
+               docstring uncodable_glyphs;
+               docstring options_encodable;
+               Encoding const * const enc = features.runparams().encoding;
+               if (enc) {
+                       for (char_type c : strOptions) {
+                               if (!enc->encodable(c)) {
+                                       docstring const glyph(1, c);
+                                       LYXERR0("Uncodable character '"
+                                               << glyph
+                                               << "' in class options!");
+                                       uncodable_glyphs += glyph;
+                                       if (features.runparams().dryrun) {
+                                               options_encodable += "<" + _("LyX Warning: ")
+                                                  + _("uncodable character") + " '";
+                                               options_encodable += c;
+                                               options_encodable += "'>";
+                                       }
+                               } else
+                                       options_encodable += c;
+                       }
+               } else
+                       options_encodable = strOptions;
+       
+               // On BUFFER_VIEW|UPDATE, warn user if we found uncodable glyphs
+               if (!features.runparams().dryrun && !uncodable_glyphs.empty()) {
+                       frontend::Alert::warning(
+                               _("Uncodable character in class options"),
+                               support::bformat(
+                                 _("The class options of your document contain glyphs "
+                                   "that are unknown in the current document encoding "
+                                   "(namely %1$s).\nThese glyphs are omitted "
+                                   " from the output, which may result in "
+                                   "incomplete output."
+                                   "\n\nPlease select an appropriate "
+                                   "document encoding\n"
+                                   "(such as utf8) or change the "
+                                   "class options accordingly."),
+                                 uncodable_glyphs));
+               }
+               options_encodable = rtrim(options_encodable, ",");
+               os << '[' << options_encodable << ']';
        }
 
        os << '{' << from_ascii(tclass.latexname()) << "}\n";
        // end of \documentclass defs
 
+       // The package options (via \PassOptionsToPackage)
+       os << from_ascii(features.getPackageOptions());
+
        // if we use fontspec or newtxmath, we have to load the AMS packages here
        string const ams = features.loadAMSPackages();
-       bool const ot1 = (main_font_encoding() == "default" || main_font_encoding() == "OT1");
+       string const main_font_enc = features.runparams().main_fontenc;
+       bool const ot1 = (main_font_enc == "default" || main_font_enc == "OT1");
        bool const use_newtxmath =
                theLaTeXFonts().getLaTeXFont(from_ascii(fontsMath())).getUsedPackage(
                        ot1, false, false) == "newtxmath";
@@ -1775,7 +1949,7 @@ bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
        // set font encoding
        // non-TeX fonts use font encoding TU (set by fontspec)
        if (!useNonTeXFonts && !features.isProvided("fontenc")
-           && main_font_encoding() != "default") {
+           && main_font_enc != "default") {
                // get main font encodings
                vector<string> fontencs = font_encodings();
                // get font encodings of secondary languages
@@ -1804,14 +1978,11 @@ bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
        // includeonly
        if (!features.runparams().includeall && !included_children_.empty()) {
                os << "\\includeonly{";
-               list<string>::const_iterator it = included_children_.begin();
-               list<string>::const_iterator en = included_children_.end();
                bool first = true;
-               for (; it != en; ++it) {
-                       string incfile = *it;
+               for (auto incfile : included_children_) {
                        FileName inc = makeAbsPath(incfile, filepath.absFileName());
                        string mangled = DocFileName(changeExtension(inc.absFileName(), ".tex")).
-                       mangledFileName();
+                                       mangledFileName();
                        if (!features.runparams().nice)
                                incfile = mangled;
                        // \includeonly doesn't want an extension
@@ -1827,7 +1998,8 @@ bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
                os << "}\n";
        }
 
-       if (use_geometry || !class_supported_papersize) {
+       if (!features.isProvided("geometry")
+           && (use_geometry || !class_supported_papersize)) {
                odocstringstream ods;
                if (!getGraphicsDriver("geometry").empty())
                        ods << getGraphicsDriver("geometry");
@@ -1879,20 +2051,17 @@ bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
                        break;
                }
                docstring g_options = trim(ods.str(), ",");
+               os << "\\usepackage";
                // geometry-light means that the class works with geometry, but overwrites
                // the package options and paper sizes (memoir does this).
                // In this case, all options need to go to \geometry
                // and the standard paper sizes need to go to the class options.
-               if (!features.isProvided("geometry")) {
-                       os << "\\usepackage";
-                       if (!g_options.empty() && !features.isProvided("geometry-light")) {
-                               os << '[' << g_options << ']';
-                               g_options.clear();
-                       }
-                       os << "{geometry}\n";
+               if (!g_options.empty() && !features.isProvided("geometry-light")) {
+                       os << '[' << g_options << ']';
+                       g_options.clear();
                }
-               if (use_geometry || features.isProvided("geometry")
-                   || features.isProvided("geometry-light")) {
+               os << "{geometry}\n";
+               if (use_geometry || features.isProvided("geometry-light")) {
                        os << "\\geometry{verbose";
                        if (!g_options.empty())
                                // Output general options here with "geometry light".
@@ -1930,7 +2099,7 @@ bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
        }
 
        // only output when the background color is not default
-       if (isbackgroundcolor == true) {
+       if (isbackgroundcolor) {
                // only require color here, the background color will be defined
                // in LaTeXFeatures.cpp to avoid interferences with the LaTeX
                // package pdfpages
@@ -1939,7 +2108,7 @@ bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
        }
 
        // only output when the font color is not default
-       if (isfontcolor == true) {
+       if (isfontcolor) {
                // only require color here, the font color will be defined
                // in LaTeXFeatures.cpp to avoid interferences with the LaTeX
                // package pdfpages
@@ -1963,26 +2132,36 @@ bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
 
        if (paragraph_separation) {
                // when skip separation
+               string psopt;
                switch (getDefSkip().kind()) {
                case VSpace::SMALLSKIP:
-                       os << "\\setlength{\\parskip}{\\smallskipamount}\n";
+                       psopt = "\\smallskipamount";
                        break;
                case VSpace::MEDSKIP:
-                       os << "\\setlength{\\parskip}{\\medskipamount}\n";
+                       psopt = "\\medskipamount";
                        break;
                case VSpace::BIGSKIP:
-                       os << "\\setlength{\\parskip}{\\bigskipamount}\n";
+                       psopt = "\\bigskipamount";
+                       break;
+               case VSpace::HALFLINE:
+                       // default (no option)
+                       break;
+               case VSpace::FULLLINE:
+                       psopt = "\\baselineskip";
                        break;
                case VSpace::LENGTH:
-                       os << "\\setlength{\\parskip}{"
-                          << from_utf8(getDefSkip().length().asLatexString())
-                          << "}\n";
+                       psopt = getDefSkip().length().asLatexString();
                        break;
-               default: // should never happen // Then delete it.
-                       os << "\\setlength{\\parskip}{\\medskipamount}\n";
+               default:
                        break;
                }
-               os << "\\setlength{\\parindent}{0pt}\n";
+               if (!features.isProvided("parskip")) {
+                       if (!psopt.empty())
+                               psopt = "[skip=" + psopt + "]";
+                       os << "\\usepackage" + psopt + "{parskip}\n";
+               } else {
+                       os << "\\setlength{\\parskip}{" + psopt + "}\n";
+               }
        } else {
                // when separation by indentation
                // only output something when a width is given
@@ -2010,15 +2189,12 @@ bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
        if (output_sync) {
                if (!output_sync_macro.empty())
                        os << from_utf8(output_sync_macro) +"\n";
-               else if (features.runparams().flavor == OutputParams::LATEX)
+               else if (features.runparams().flavor == Flavor::LaTeX)
                        os << "\\usepackage[active]{srcltx}\n";
-               else if (features.runparams().flavor == OutputParams::PDFLATEX)
+               else
                        os << "\\synctex=-1\n";
        }
 
-       // The package options (via \PassOptionsToPackage)
-       os << from_ascii(features.getPackageOptions());
-
        // due to interferences with babel and hyperref, the color package has to
        // be loaded (when it is not already loaded) before babel when hyperref
        // is used with the colorlinks option, see
@@ -2046,11 +2222,9 @@ bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
 
        // Additional Indices
        if (features.isRequired("splitidx")) {
-               IndicesList::const_iterator iit = indiceslist().begin();
-               IndicesList::const_iterator iend = indiceslist().end();
-               for (; iit != iend; ++iit) {
+               for (auto const & idx : indiceslist()) {
                        os << "\\newindex{";
-                       os << escape(iit->shortcut());
+                       os << escape(idx.shortcut());
                        os << "}\n";
                }
        }
@@ -2130,8 +2304,7 @@ bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
                docstring uncodable_glyphs;
                Encoding const * const enc = features.runparams().encoding;
                if (enc) {
-                       for (size_t n = 0; n < preamble.size(); ++n) {
-                               char_type c = preamble[n];
+                       for (char_type c : preamble) {
                                if (!enc->encodable(c)) {
                                        docstring const glyph(1, c);
                                        LYXERR0("Uncodable character '"
@@ -2187,8 +2360,10 @@ bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
        // use \PassOptionsToPackage here because the user could have
        // already loaded subfig in the preamble.
        if (features.mustProvide("subfig"))
-               atlyxpreamble << "\\@ifundefined{showcaptionsetup}{}{%\n"
-                                " \\PassOptionsToPackage{caption=false}{subfig}}\n"
+               atlyxpreamble << "\\ifdefined\\showcaptionsetup\n"
+                                " % Caption package is used. Advise subfig not to load it again.\n"
+                                " \\PassOptionsToPackage{caption=false}{subfig}\n"
+                                "\\fi\n"
                                 "\\usepackage{subfig}\n";
 
        // Itemize bullet settings need to be last in case the user
@@ -2295,7 +2470,7 @@ bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
            && !features.isProvided("xunicode")) {
                // The `xunicode` package officially only supports XeTeX,
                //  but also works with LuaTeX. We work around its XeTeX test.
-               if (features.runparams().flavor != OutputParams::XETEX) {
+               if (features.runparams().flavor != Flavor::XeTeX) {
                        os << "% Pretend to xunicode that we are XeTeX\n"
                           << "\\def\\XeTeXpicfile{}\n";
                }
@@ -2318,15 +2493,14 @@ bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
                // now setup the other languages
                set<string> const polylangs =
                        features.getPolyglossiaLanguages();
-               for (set<string>::const_iterator mit = polylangs.begin();
-                    mit != polylangs.end() ; ++mit) {
+               for (auto const & pl : polylangs) {
                        // We do not output the options here; they are output in
                        // the language switch commands. This is safer if multiple
                        // varieties are used.
-                       if (*mit == language->polyglossia())
+                       if (pl == language->polyglossia())
                                continue;
                        os << "\\setotherlanguage";
-                       os << "{" << from_ascii(*mit) << "}\n";
+                       os << "{" << from_ascii(pl) << "}\n";
                }
        }
 
@@ -2502,8 +2676,8 @@ LayoutFile const * BufferParams::baseClass() const
 {
        if (LayoutFileList::get().haveClass(pimpl_->baseClass_))
                return &(LayoutFileList::get()[pimpl_->baseClass_]);
-       else
-               return 0;
+
+       return nullptr;
 }
 
 
@@ -2513,19 +2687,17 @@ LayoutFileIndex const & BufferParams::baseClassID() const
 }
 
 
-void BufferParams::makeDocumentClass(bool const clone)
+void BufferParams::makeDocumentClass(bool clone, bool internal)
 {
        if (!baseClass())
                return;
 
        invalidateConverterCache();
        LayoutModuleList mods;
-       LayoutModuleList::iterator it = layout_modules_.begin();
-       LayoutModuleList::iterator en = layout_modules_.end();
-       for (; it != en; ++it)
-               mods.push_back(*it);
+       for (auto const & mod : layout_modules_)
+               mods.push_back(mod);
 
-       doc_class_ = getDocumentClass(*baseClass(), mods, cite_engine_, clone);
+       doc_class_ = getDocumentClass(*baseClass(), mods, cite_engine_, clone, internal);
 
        TextClass::ReturnValues success = TextClass::OK;
        if (!forced_local_layout_.empty())
@@ -2567,10 +2739,8 @@ void BufferParams::setLocalLayout(docstring const & layout, bool forced)
 
 bool BufferParams::addLayoutModule(string const & modName)
 {
-       LayoutModuleList::const_iterator it = layout_modules_.begin();
-       LayoutModuleList::const_iterator end = layout_modules_.end();
-       for (; it != end; ++it)
-               if (*it == modName)
+       for (auto const & mod : layout_modules_)
+               if (mod == modName)
                        return false;
        layout_modules_.push_back(modName);
        return true;
@@ -2586,10 +2756,8 @@ string BufferParams::bufferFormat() const
 bool BufferParams::isExportable(string const & format, bool need_viewable) const
 {
        FormatList const & formats = exportableFormats(need_viewable);
-       FormatList::const_iterator fit = formats.begin();
-       FormatList::const_iterator end = formats.end();
-       for (; fit != end ; ++fit) {
-               if ((*fit)->name() == format)
+       for (auto const & fmt : formats) {
+               if (fmt->name() == format)
                        return true;
        }
        return false;
@@ -2610,13 +2778,15 @@ FormatList const & BufferParams::exportableFormats(bool only_viewable) const
        if (useNonTeXFonts) {
                excludes.insert("latex");
                excludes.insert("pdflatex");
-       } else if (inputenc != "ascii" && inputenc != "utf8-plain")
+       } else if (inputenc != "ascii" && inputenc != "utf8-plain") {
                  // XeTeX with TeX fonts requires input encoding ascii (#10600).
                  excludes.insert("xetex");
-       FormatList result = theConverters().getReachable(backs[0], only_viewable,
-                                                                                                        true, excludes);
-       for (vector<string>::const_iterator it = backs.begin() + 1;
-            it != backs.end(); ++it) {
+       }
+
+       FormatList result =
+               theConverters().getReachable(backs[0], only_viewable, true, excludes);
+       vector<string>::const_iterator it = backs.begin() + 1;
+       for (; it != backs.end(); ++it) {
                FormatList r = theConverters().getReachable(*it, only_viewable,
                                                                                                        false, excludes);
                result.insert(result.end(), r.begin(), r.end());
@@ -2660,13 +2830,14 @@ vector<string> BufferParams::backends() const
        }
 
        v.push_back("xhtml");
+       v.push_back("docbook5");
        v.push_back("text");
        v.push_back("lyx");
        return v;
 }
 
 
-OutputParams::FLAVOR BufferParams::getOutputFlavor(string const & format) const
+Flavor BufferParams::getOutputFlavor(string const & format) const
 {
        string const dformat = (format.empty() || format == "default") ?
                getDefaultOutputFormat() : format;
@@ -2676,24 +2847,26 @@ OutputParams::FLAVOR BufferParams::getOutputFlavor(string const & format) const
        if (it != default_flavors_.end())
                return it->second;
 
-       OutputParams::FLAVOR result = OutputParams::LATEX;
+       Flavor result = Flavor::LaTeX;
 
        // FIXME It'd be better not to hardcode this, but to do
        //       something with formats.
        if (dformat == "xhtml")
-               result = OutputParams::HTML;
+               result = Flavor::Html;
+       else if (dformat == "docbook5")
+               result = Flavor::DocBook5;
        else if (dformat == "text")
-               result = OutputParams::TEXT;
+               result = Flavor::Text;
        else if (dformat == "lyx")
-               result = OutputParams::LYX;
+               result = Flavor::LyX;
        else if (dformat == "pdflatex")
-               result = OutputParams::PDFLATEX;
+               result = Flavor::PdfLaTeX;
        else if (dformat == "xetex")
-               result = OutputParams::XETEX;
+               result = Flavor::XeTeX;
        else if (dformat == "luatex")
-               result = OutputParams::LUATEX;
+               result = Flavor::LuaTeX;
        else if (dformat == "dviluatex")
-               result = OutputParams::DVILUATEX;
+               result = Flavor::DviLuaTeX;
        else {
                // Try to determine flavor of default output format
                vector<string> backs = backends();
@@ -2721,13 +2894,6 @@ string BufferParams::getDefaultOutputFormat() const
        if (!default_output_format.empty()
            && default_output_format != "default")
                return default_output_format;
-       if (isDocBook()) {
-               FormatList const & formats = exportableFormats(true);
-               if (formats.empty())
-                       return string();
-               // return the first we find
-               return formats.front()->name();
-       }
        if (encoding().package() == Encoding::japanese)
                return lyxrc.default_platex_view_format;
        if (useNonTeXFonts)
@@ -2748,7 +2914,7 @@ Font const BufferParams::getFont() const
 }
 
 
-InsetQuotesParams::QuoteStyle BufferParams::getQuoteStyle(string const & qs) const
+QuoteStyle BufferParams::getQuoteStyle(string const & qs) const
 {
        return quotesstyletranslator().find(qs);
 }
@@ -2766,12 +2932,6 @@ bool BufferParams::isLiterate() const
 }
 
 
-bool BufferParams::isDocBook() const
-{
-       return documentClass().outputType() == DOCBOOK;
-}
-
-
 void BufferParams::readPreamble(Lexer & lex)
 {
        if (lex.getString() != "\\begin_preamble")
@@ -2782,6 +2942,16 @@ void BufferParams::readPreamble(Lexer & lex)
 }
 
 
+void BufferParams::readDocumentMetadata(Lexer & lex)
+{
+       if (lex.getString() != "\\begin_metadata")
+               lyxerr << "Error (BufferParams::readDocumentMetadata):"
+                       "consistency check failed." << endl;
+
+       document_metadata = lex.getLongString(from_ascii("\\end_metadata"));
+}
+
+
 void BufferParams::readLocalLayout(Lexer & lex, bool forced)
 {
        string const expected = forced ? "\\begin_forced_local_layout" :
@@ -2921,12 +3091,10 @@ void BufferParams::readRemovedModules(Lexer & lex)
        // added. normally, that will be because default modules were added in
        // setBaseClass(), which gets called when \textclass is read at the
        // start of the read.
-       list<string>::const_iterator rit = removed_modules_.begin();
-       list<string>::const_iterator const ren = removed_modules_.end();
-       for (; rit != ren; ++rit) {
+       for (auto const & rm : removed_modules_) {
                LayoutModuleList::iterator const mit = layout_modules_.begin();
                LayoutModuleList::iterator const men = layout_modules_.end();
-               LayoutModuleList::iterator found = find(mit, men, *rit);
+               LayoutModuleList::iterator found = find(mit, men, rm);
                if (found == men)
                        continue;
                layout_modules_.erase(found);
@@ -3139,12 +3307,13 @@ string const BufferParams::dvips_options() const
 
 string const BufferParams::main_font_encoding() const
 {
-       if (font_encodings().empty()) {
+       vector<string> const fencs = font_encodings();
+       if (fencs.empty()) {
                if (ascii_lowercase(language->fontenc(*this)) == "none")
                        return "none";
                return "default";
        }
-       return font_encodings().back();
+       return fencs.back();
 }
 
 
@@ -3159,9 +3328,10 @@ vector<string> const BufferParams::font_encodings() const
                if (!doc_fontenc.empty())
                        // If we have a custom setting, we use only that!
                        return getVectorFromString(doc_fontenc);
-               if (!language->fontenc(*this).empty()
+               string const lfe = language->fontenc(*this);
+               if (!lfe.empty()
                    && ascii_lowercase(language->fontenc(*this)) != "none") {
-                       vector<string> fencs = getVectorFromString(language->fontenc(*this));
+                       vector<string> fencs = getVectorFromString(lfe);
                        for (auto & fe : fencs) {
                                if (find(fontencs.begin(), fontencs.end(), fe) == fontencs.end())
                                        fontencs.push_back(fe);
@@ -3222,8 +3392,8 @@ void BufferParams::writeEncodingPreamble(otexstream & os,
                // Create list of inputenc options:
                set<string> encoding_set;
                // luainputenc fails with more than one encoding
-               if (features.runparams().flavor != OutputParams::LUATEX
-                       && features.runparams().flavor != OutputParams::DVILUATEX)
+               if (features.runparams().flavor != Flavor::LuaTeX
+                       && features.runparams().flavor != Flavor::DviLuaTeX)
                        // list all input encodings used in the document
                        encoding_set = features.getEncodingSet(doc_encoding);
 
@@ -3247,8 +3417,8 @@ void BufferParams::writeEncodingPreamble(otexstream & os,
                                        os << ',';
                                os << from_ascii(doc_encoding);
                        }
-                       if (features.runparams().flavor == OutputParams::LUATEX
-                           || features.runparams().flavor == OutputParams::DVILUATEX)
+                       if (features.runparams().flavor == Flavor::LuaTeX
+                           || features.runparams().flavor == Flavor::DviLuaTeX)
                                os << "]{luainputenc}\n";
                        else
                                os << "]{inputenc}\n";
@@ -3270,9 +3440,21 @@ void BufferParams::writeEncodingPreamble(otexstream & os,
                        if (features.isRequired("japanese")
                            || features.isProvided("inputenc"))
                                break;
-                       os << "\\usepackage[" << from_ascii(encoding().latexName());
-                       if (features.runparams().flavor == OutputParams::LUATEX
-                           || features.runparams().flavor == OutputParams::DVILUATEX)
+                       string const doc_encoding = encoding().latexName();
+                       // The 2022 release of ucs.sty uses the default utf8
+                       // inputenc encoding with 'utf8x' inputenc if the ucs
+                       // package is not loaded before inputenc.
+                       // This breaks existing documents that use utf8x
+                       // and also makes utf8x redundant.
+                       // Thus we load ucs.sty in order to keep functionality
+                       // that would otherwise be silently dropped.
+                       if (doc_encoding == "utf8x"
+                           && features.isAvailable("ucs-2022/08/07")
+                           && !features.isProvided("ucs"))
+                               os << "\\usepackage{ucs}\n";
+                       os << "\\usepackage[" << from_ascii(doc_encoding);
+                       if (features.runparams().flavor == Flavor::LuaTeX
+                           || features.runparams().flavor == Flavor::DviLuaTeX)
                                os << "]{luainputenc}\n";
                        else
                                os << "]{inputenc}\n";
@@ -3333,7 +3515,7 @@ string const BufferParams::loadFonts(LaTeXFeatures & features) const
                bool const babelfonts = features.useBabel()
                                && features.isAvailable("babel-2017/11/03");
                string const texmapping =
-                       (features.runparams().flavor == OutputParams::XETEX) ?
+                       (features.runparams().flavor == Flavor::XeTeX) ?
                        "Mapping=tex-text" : "Ligatures=TeX";
                if (fontsRoman() != "default") {
                        if (babelfonts)
@@ -3413,10 +3595,11 @@ string const BufferParams::loadFonts(LaTeXFeatures & features) const
        }
 
        // Tex Fonts
-       bool const ot1 = (main_font_encoding() == "default" || main_font_encoding() == "OT1");
+       bool const ot1 = (features.runparams().main_fontenc == "default"
+                         || features.runparams().main_fontenc == "OT1");
        bool const dryrun = features.runparams().dryrun;
        bool const complete = (fontsSans() == "default" && fontsTypewriter() == "default");
-       bool const nomath = (fontsMath() == "default");
+       bool const nomath = (fontsMath() != "auto");
 
        // ROMAN FONTS
        os << theLaTeXFonts().getLaTeXFont(from_ascii(fontsRoman())).getLaTeXCode(
@@ -3474,7 +3657,7 @@ string const & BufferParams::defaultBiblioStyle() const
 }
 
 
-bool const & BufferParams::fullAuthorList() const
+bool BufferParams::fullAuthorList() const
 {
        return documentClass().fullAuthorList();
 }
@@ -3516,11 +3699,71 @@ vector<CitationStyle> BufferParams::citeStyles() const
 }
 
 
-string const BufferParams::bibtexCommand() const
+string const BufferParams::getBibtexCommand(string const cmd, bool const warn) const
+{
+       // split from options
+       string command_in;
+       split(cmd, command_in, ' ');
+
+       // Look if the requested command is available. If so, use that.
+       for (auto const & alts : lyxrc.bibtex_alternatives) {
+               string command_prov;
+               split(alts, command_prov, ' ');
+               if (command_in == command_prov)
+                       return cmd;
+       }
+
+       // If not, find the most suitable fallback for the current cite framework,
+       // and warn. Note that we omit options in any such case.
+       string fallback;
+       if (useBiblatex()) {
+               // For Biblatex, we prefer biber (also for Japanese)
+               // and try to fall back to bibtex8
+               if (lyxrc.bibtex_alternatives.find("biber") != lyxrc.bibtex_alternatives.end())
+                       fallback = "biber";
+               else if (lyxrc.bibtex_alternatives.find("bibtex8") != lyxrc.bibtex_alternatives.end())
+                       fallback = "bibtex8";
+       }
+       // For classic BibTeX and as last resort for biblatex, try bibtex
+       if (fallback.empty()) {
+               if (lyxrc.bibtex_alternatives.find("bibtex") != lyxrc.bibtex_alternatives.end())
+                       fallback = "bibtex";
+       }
+
+       if (!warn)
+               return fallback;
+
+       if (fallback.empty()) {
+               frontend::Alert::warning(
+                       _("No bibliography processor found!"),
+                       support::bformat(
+                         _("The bibliography processor requested by this document "
+                           "(%1$s) is not available and no appropriate "
+                           "alternative has been found. "
+                           "No bibliography and references will be generated.\n"
+                           "Please fix your installation!"),
+                         from_utf8(cmd)));
+       } else {
+               frontend::Alert::warning(
+                       _("Requested bibliography processor not found!"),
+                       support::bformat(
+                         _("The bibliography processor requested by this document "
+                           "(%1$s) is not available. "
+                           "As a fallback, '%2$s' will be used, options are omitted. "
+                           "This might result in errors or unwanted changes in "
+                           "the bibliography. Please check carefully!\n"
+                           "It is suggested to install the missing processor."),
+                         from_utf8(cmd), from_utf8(fallback)));
+       }
+       return fallback;
+}
+
+
+string const BufferParams::bibtexCommand(bool const warn) const
 {
        // Return document-specific setting if available
        if (bibtex_command != "default")
-               return bibtex_command;
+               return getBibtexCommand(bibtex_command, warn);
 
        // If we have "default" in document settings, consult the prefs
        // 1. Japanese (uses a specific processor)
@@ -3540,7 +3783,7 @@ string const BufferParams::bibtexCommand() const
        // 2. All other languages
        else if (lyxrc.bibtex_command != "automatic")
                // Return the specified program, if "automatic" is not set
-               return lyxrc.bibtex_command;
+               return getBibtexCommand(lyxrc.bibtex_command, warn);
 
        // 3. Automatic: find the most suitable for the current cite framework
        if (useBiblatex()) {
@@ -3574,6 +3817,7 @@ void BufferParams::copyForAdvFR(const BufferParams & bp)
 {
        string const & lang = bp.language->lang();
        setLanguage(lang);
+       quotes_style = bp.quotes_style;
        layout_modules_ = bp.layout_modules_;
        string const & doc_class = bp.documentClass().name();
        setBaseClass(doc_class);