src/BufferParams.cpp

   1 /**
   2  * \file BufferParams.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alfredo Braunstein
   7  * \author Lars Gullik Bjønnes
   8  * \author Jean-Marc Lasgouttes
   9  * \author John Levon
  10  * \author André Pönitz
  11  * \author Martin Vermeer
  12  *
  13  * Full author contact details are available in file CREDITS.
  14  */
  15
  16 #include <config.h>
  17
  18 #include "BufferParams.h"
  19
  20 #include "Author.h"
  21 #include "LayoutFile.h"
  22 #include "BranchList.h"
  23 #include "Buffer.h"
  24 #include "Bullet.h"
  25 #include "CiteEnginesList.h"
  26 #include "Color.h"
  27 #include "ColorSet.h"
  28 #include "Converter.h"
  29 #include "Encoding.h"
  30 #include "Format.h"
  31 #include "IndicesList.h"
  32 #include "Language.h"
  33 #include "LaTeXFeatures.h"
  34 #include "LaTeXFonts.h"
  35 #include "Font.h"
  36 #include "Lexer.h"
  37 #include "LyXRC.h"
  38 #include "OutputParams.h"
  39 #include "Spacing.h"
  40 #include "texstream.h"
  41 #include "TexRow.h"
  42 #include "VSpace.h"
  43 #include "PDFOptions.h"
  44
  45 #include "frontends/alert.h"
  46
  47 #include "insets/InsetListingsParams.h"
  48 #include "insets/InsetQuotes.h"
  49
  50 #include "support/convert.h"
  51 #include "support/debug.h"
  52 #include "support/FileName.h"
  53 #include "support/filetools.h"
  54 #include "support/gettext.h"
  55 #include "support/Length.h"
  56 #include "support/Messages.h"
  57 #include "support/mutex.h"
  58 #include "support/Package.h"
  59 #include "support/Translator.h"
  60 #include "support/lstrings.h"
  61
  62 #include <algorithm>
  63 #include <sstream>
  64
  65 using namespace std;
  66 using namespace lyx::support;
  67
  68
  69 static char const * const string_paragraph_separation[] = {
  70         "indent", "skip", ""
  71 };
  72
  73
  74 static char const * const string_quotes_style[] = {
  75         "english", "swedish", "german", "polish", "swiss", "danish", "plain",
  76         "british", "swedishg", "french", "frenchin", "russian", "cjk", "cjkangle",
  77         "hungarian", "hebrew", ""
  78 };
  79
  80
  81 static char const * const string_papersize[] = {
  82         "default", "custom", "letter", "legal", "executive",
  83         "a0", "a1", "a2", "a3", "a4", "a5", "a6",
  84         "b0", "b1", "b2", "b3", "b4", "b5", "b6",
  85         "c0", "c1", "c2", "c3", "c4", "c5", "c6",
  86         "b0j", "b1j", "b2j", "b3j", "b4j", "b5j", "b6j", ""
  87 };
  88
  89
  90 static char const * const string_papersize_geometry[] = {
  91         "default", "custom", "letterpaper", "legalpaper", "executivepaper",
  92         "a0paper", "a1paper", "a2paper", "a3paper", "a4paper", "a5paper", "a6paper",
  93         "b0paper", "b1paper", "b2paper", "b3paper", "b4paper", "b5paper", "b6paper",
  94         "c0paper", "c1paper", "c2paper", "c3paper", "c4paper", "c5paper", "c6paper",
  95         "b0j", "b1j", "b2j", "b3j", "b4j", "b5j", "b6j", ""
  96 };
  97
  98
  99 static char const * const string_orientation[] = {
 100         "portrait", "landscape", ""
 101 };
 102
 103
 104 static char const * const tex_graphics[] = {
 105         "default", "dvialw", "dvilaser", "dvipdf", "dvipdfm", "dvipdfmx",
 106         "dvips", "dvipsone", "dvitops", "dviwin", "dviwindo", "dvi2ps", "emtex",
 107         "ln", "oztex", "pctexhp", "pctexps", "pctexwin", "pctex32", "pdftex",
 108         "psprint", "pubps", "tcidvi", "textures", "truetex", "vtex", "xdvi",
 109         "xetex", "none", ""
 110 };
 111
 112
 113 namespace lyx {
 114
 115 // Local translators
 116 namespace {
 117
 118 // Paragraph separation
 119 typedef Translator<string, BufferParams::ParagraphSeparation> ParSepTranslator;
 120
 121
 122 ParSepTranslator const init_parseptranslator()
 123 {
 124         ParSepTranslator translator
 125                 (string_paragraph_separation[0], BufferParams::ParagraphIndentSeparation);
 126         translator.addPair(string_paragraph_separation[1], BufferParams::ParagraphSkipSeparation);
 127         return translator;
 128 }
 129
 130
 131 ParSepTranslator const & parseptranslator()
 132 {
 133         static ParSepTranslator const translator =
 134                 init_parseptranslator();
 135         return translator;
 136 }
 137
 138
 139 // Quotes style
 140 typedef Translator<string, QuoteStyle> QuotesStyleTranslator;
 141
 142
 143 QuotesStyleTranslator const init_quotesstyletranslator()
 144 {
 145         QuotesStyleTranslator translator
 146                 (string_quotes_style[0], QuoteStyle::English);
 147         translator.addPair(string_quotes_style[1], QuoteStyle::Swedish);
 148         translator.addPair(string_quotes_style[2], QuoteStyle::German);
 149         translator.addPair(string_quotes_style[3], QuoteStyle::Polish);
 150         translator.addPair(string_quotes_style[4], QuoteStyle::Swiss);
 151         translator.addPair(string_quotes_style[5], QuoteStyle::Danish);
 152         translator.addPair(string_quotes_style[6], QuoteStyle::Plain);
 153         translator.addPair(string_quotes_style[7], QuoteStyle::British);
 154         translator.addPair(string_quotes_style[8], QuoteStyle::SwedishG);
 155         translator.addPair(string_quotes_style[9], QuoteStyle::French);
 156         translator.addPair(string_quotes_style[10], QuoteStyle::FrenchIN);
 157         translator.addPair(string_quotes_style[11], QuoteStyle::Russian);
 158         translator.addPair(string_quotes_style[12], QuoteStyle::CJK);
 159         translator.addPair(string_quotes_style[13], QuoteStyle::CJKAngle);
 160         translator.addPair(string_quotes_style[14], QuoteStyle::Hungarian);
 161         translator.addPair(string_quotes_style[15], QuoteStyle::Hebrew);
 162         return translator;
 163 }
 164
 165
 166 QuotesStyleTranslator const & quotesstyletranslator()
 167 {
 168         static QuotesStyleTranslator const translator =
 169                 init_quotesstyletranslator();
 170         return translator;
 171 }
 172
 173
 174 // Paper size
 175 typedef Translator<string, PAPER_SIZE> PaperSizeTranslator;
 176
 177
 178 static PaperSizeTranslator initPaperSizeTranslator()
 179 {
 180         PaperSizeTranslator translator(string_papersize[0], PAPER_DEFAULT);
 181         translator.addPair(string_papersize[1], PAPER_CUSTOM);
 182         translator.addPair(string_papersize[2], PAPER_USLETTER);
 183         translator.addPair(string_papersize[3], PAPER_USLEGAL);
 184         translator.addPair(string_papersize[4], PAPER_USEXECUTIVE);
 185         translator.addPair(string_papersize[5], PAPER_A0);
 186         translator.addPair(string_papersize[6], PAPER_A1);
 187         translator.addPair(string_papersize[7], PAPER_A2);
 188         translator.addPair(string_papersize[8], PAPER_A3);
 189         translator.addPair(string_papersize[9], PAPER_A4);
 190         translator.addPair(string_papersize[10], PAPER_A5);
 191         translator.addPair(string_papersize[11], PAPER_A6);
 192         translator.addPair(string_papersize[12], PAPER_B0);
 193         translator.addPair(string_papersize[13], PAPER_B1);
 194         translator.addPair(string_papersize[14], PAPER_B2);
 195         translator.addPair(string_papersize[15], PAPER_B3);
 196         translator.addPair(string_papersize[16], PAPER_B4);
 197         translator.addPair(string_papersize[17], PAPER_B5);
 198         translator.addPair(string_papersize[18], PAPER_B6);
 199         translator.addPair(string_papersize[19], PAPER_C0);
 200         translator.addPair(string_papersize[20], PAPER_C1);
 201         translator.addPair(string_papersize[21], PAPER_C2);
 202         translator.addPair(string_papersize[22], PAPER_C3);
 203         translator.addPair(string_papersize[23], PAPER_C4);
 204         translator.addPair(string_papersize[24], PAPER_C5);
 205         translator.addPair(string_papersize[25], PAPER_C6);
 206         translator.addPair(string_papersize[26], PAPER_JISB0);
 207         translator.addPair(string_papersize[27], PAPER_JISB1);
 208         translator.addPair(string_papersize[28], PAPER_JISB2);
 209         translator.addPair(string_papersize[29], PAPER_JISB3);
 210         translator.addPair(string_papersize[30], PAPER_JISB4);
 211         translator.addPair(string_papersize[31], PAPER_JISB5);
 212         translator.addPair(string_papersize[32], PAPER_JISB6);
 213         return translator;
 214 }
 215
 216
 217 PaperSizeTranslator const & papersizetranslator()
 218 {
 219         static PaperSizeTranslator const translator =
 220                 initPaperSizeTranslator();
 221         return translator;
 222 }
 223
 224
 225 // Paper orientation
 226 typedef Translator<string, PAPER_ORIENTATION> PaperOrientationTranslator;
 227
 228
 229 PaperOrientationTranslator const init_paperorientationtranslator()
 230 {
 231         PaperOrientationTranslator translator(string_orientation[0], ORIENTATION_PORTRAIT);
 232         translator.addPair(string_orientation[1], ORIENTATION_LANDSCAPE);
 233         return translator;
 234 }
 235
 236
 237 PaperOrientationTranslator const & paperorientationtranslator()
 238 {
 239         static PaperOrientationTranslator const translator =
 240             init_paperorientationtranslator();
 241         return translator;
 242 }
 243
 244
 245 // Page sides
 246 typedef Translator<int, PageSides> SidesTranslator;
 247
 248
 249 SidesTranslator const init_sidestranslator()
 250 {
 251         SidesTranslator translator(1, OneSide);
 252         translator.addPair(2, TwoSides);
 253         return translator;
 254 }
 255
 256
 257 SidesTranslator const & sidestranslator()
 258 {
 259         static SidesTranslator const translator = init_sidestranslator();
 260         return translator;
 261 }
 262
 263
 264 // LaTeX packages
 265 typedef Translator<int, BufferParams::Package> PackageTranslator;
 266
 267
 268 PackageTranslator const init_packagetranslator()
 269 {
 270         PackageTranslator translator(0, BufferParams::package_off);
 271         translator.addPair(1, BufferParams::package_auto);
 272         translator.addPair(2, BufferParams::package_on);
 273         return translator;
 274 }
 275
 276
 277 PackageTranslator const & packagetranslator()
 278 {
 279         static PackageTranslator const translator =
 280                 init_packagetranslator();
 281         return translator;
 282 }
 283
 284
 285 // Spacing
 286 typedef Translator<string, Spacing::Space> SpaceTranslator;
 287
 288
 289 SpaceTranslator const init_spacetranslator()
 290 {
 291         SpaceTranslator translator("default", Spacing::Default);
 292         translator.addPair("single", Spacing::Single);
 293         translator.addPair("onehalf", Spacing::Onehalf);
 294         translator.addPair("double", Spacing::Double);
 295         translator.addPair("other", Spacing::Other);
 296         return translator;
 297 }
 298
 299
 300 SpaceTranslator const & spacetranslator()
 301 {
 302         static SpaceTranslator const translator = init_spacetranslator();
 303         return translator;
 304 }
 305
 306
 307 bool inSystemDir(FileName const & document_dir, string & system_dir)
 308 {
 309         // A document is assumed to be in a system LyX directory (not
 310         // necessarily the system directory of the running instance)
 311         // if both "configure.py" and "chkconfig.ltx" are found in
 312         // either document_dir/../ or document_dir/../../.
 313         // If true, the system directory path is returned in system_dir
 314         // with a trailing path separator.
 315
 316         string const msg = "Checking whether document is in a system dir...";
 317
 318         string dir = document_dir.absFileName();
 319
 320         for (int i = 0; i < 3; ++i) {
 321                 dir = addPath(dir, "..");
 322                 if (!fileSearch(dir, "configure.py").empty() &&
 323                     !fileSearch(dir, "chkconfig.ltx").empty()) {
 324                         LYXERR(Debug::FILES, msg << " yes");
 325                         system_dir = addPath(FileName(dir).realPath(), "");
 326                         return true;
 327                 }
 328         }
 329
 330         LYXERR(Debug::FILES, msg << " no");
 331         system_dir = string();
 332         return false;
 333 }
 334
 335 } // namespace
 336
 337
 338 class BufferParams::Impl
 339 {
 340 public:
 341         Impl();
 342
 343         AuthorList authorlist;
 344         BranchList branchlist;
 345         WordLangTable spellignore;
 346         Bullet temp_bullets[4];
 347         Bullet user_defined_bullets[4];
 348         IndicesList indiceslist;
 349         Spacing spacing;
 350         Length parindent;
 351         Length mathindent;
 352         /** This is the amount of space used for paragraph_separation "skip",
 353          * and for detached paragraphs in "indented" documents.
 354          */
 355         VSpace defskip;
 356         PDFOptions pdfoptions;
 357         LayoutFileIndex baseClass_;
 358         FormatList exportableFormatList;
 359         FormatList viewableFormatList;
 360         bool isViewCacheValid;
 361         bool isExportCacheValid;
 362 };
 363
 364
 365 BufferParams::Impl::Impl()
 366         : defskip(VSpace::MEDSKIP), baseClass_(string("")),
 367           isViewCacheValid(false), isExportCacheValid(false)
 368 {
 369         // set initial author
 370         // FIXME UNICODE
 371         authorlist.record(Author(from_utf8(lyxrc.user_name),
 372                                  from_utf8(lyxrc.user_email),
 373                                  from_utf8(lyxrc.user_initials)));
 374         // set comparison author
 375         authorlist.record(Author(from_utf8("Document Comparison"),
 376                                  docstring(), docstring()));
 377 }
 378
 379
 380 BufferParams::Impl *
 381 BufferParams::MemoryTraits::clone(BufferParams::Impl const * ptr)
 382 {
 383         LBUFERR(ptr);
 384         return new BufferParams::Impl(*ptr);
 385 }
 386
 387
 388 void BufferParams::MemoryTraits::destroy(BufferParams::Impl * ptr)
 389 {
 390         delete ptr;
 391 }
 392
 393
 394 BufferParams::BufferParams()
 395         : pimpl_(new Impl)
 396 {
 397         setBaseClass(defaultBaseclass());
 398         cite_engine_ = "basic";
 399         cite_engine_type_ = ENGINE_TYPE_DEFAULT;
 400         makeDocumentClass();
 401         paragraph_separation = ParagraphIndentSeparation;
 402         is_math_indent = false;
 403         math_numbering_side = DEFAULT;
 404         quotes_style = QuoteStyle::English;
 405         dynamic_quotes = false;
 406         fontsize = "default";
 407
 408         /*  PaperLayout */
 409         papersize = PAPER_DEFAULT;
 410         orientation = ORIENTATION_PORTRAIT;
 411         use_geometry = false;
 412         biblio_style = string();
 413         use_bibtopic = false;
 414         multibib = string();
 415         use_indices = false;
 416         save_transient_properties = true;
 417         track_changes = false;
 418         output_changes = false;
 419         change_bars = false;
 420         postpone_fragile_content = true;
 421         use_default_options = true;
 422         maintain_unincluded_children = CM_None;
 423         secnumdepth = 3;
 424         tocdepth = 3;
 425         language = default_language;
 426         fontenc = "auto";
 427         fonts_roman[0] = "default";
 428         fonts_roman[1] = "default";
 429         fonts_sans[0] = "default";
 430         fonts_sans[1] = "default";
 431         fonts_typewriter[0] = "default";
 432         fonts_typewriter[1] = "default";
 433         fonts_math[0] = "auto";
 434         fonts_math[1] = "auto";
 435         fonts_default_family = "default";
 436         useNonTeXFonts = false;
 437         use_microtype = false;
 438         use_dash_ligatures = true;
 439         fonts_expert_sc = false;
 440         fonts_roman_osf = false;
 441         fonts_sans_osf = false;
 442         fonts_typewriter_osf = false;
 443         fonts_sans_scale[0] = 100;
 444         fonts_sans_scale[1] = 100;
 445         fonts_typewriter_scale[0] = 100;
 446         fonts_typewriter_scale[1] = 100;
 447         inputenc = "utf8";
 448         lang_package = "default";
 449         graphics_driver = "default";
 450         default_output_format = "default";
 451         bibtex_command = "default";
 452         index_command = "default";
 453         sides = OneSide;
 454         columns = 1;
 455         listings_params = string();
 456         pagestyle = "default";
 457         tablestyle = "default";
 458         float_alignment = "class";
 459         float_placement = "class";
 460         suppress_date = false;
 461         justification = true;
 462         // no color is the default (white)
 463         backgroundcolor = lyx::rgbFromHexName("#ffffff");
 464         isbackgroundcolor = false;
 465         // no color is the default (black)
 466         fontcolor = lyx::rgbFromHexName("#000000");
 467         isfontcolor = false;
 468         // light gray is the default font color for greyed-out notes
 469         notefontcolor = lyx::rgbFromHexName("#cccccc");
 470         isnotefontcolor = false;
 471         boxbgcolor = lyx::rgbFromHexName("#ff0000");
 472         isboxbgcolor = false;
 473         compressed = lyxrc.save_compressed;
 474         for (int iter = 0; iter < 4; ++iter) {
 475                 user_defined_bullet(iter) = ITEMIZE_DEFAULTS[iter];
 476                 temp_bullet(iter) = ITEMIZE_DEFAULTS[iter];
 477         }
 478         // default index
 479         indiceslist().addDefault(B_("Index"));
 480         html_be_strict = false;
 481         html_math_output = MathML;
 482         html_math_img_scale = 1.0;
 483         html_css_as_file = false;
 484         docbook_table_output = HTMLTable;
 485         docbook_mathml_prefix = MPrefix;
 486         display_pixel_ratio = 1.0;
 487
 488         shell_escape = false;
 489         output_sync = false;
 490         use_refstyle = true;
 491         use_formatted_ref = false;
 492         use_minted = false;
 493         use_lineno = false;
 494
 495         // map current author
 496         author_map_[pimpl_->authorlist.get(0).bufferId()] = 0;
 497 }
 498
 499
 500 docstring BufferParams::B_(string const & l10n) const
 501 {
 502         LASSERT(language, return from_utf8(l10n));
 503         return getMessages(language->code()).get(l10n);
 504 }
 505
 506
 507 BufferParams::Package BufferParams::use_package(std::string const & p) const
 508 {
 509         PackageMap::const_iterator it = use_packages.find(p);
 510         if (it == use_packages.end())
 511                 return package_auto;
 512         return it->second;
 513 }
 514
 515
 516 void BufferParams::use_package(std::string const & p, BufferParams::Package u)
 517 {
 518         use_packages[p] = u;
 519 }
 520
 521
 522 map<string, string> const & BufferParams::auto_packages()
 523 {
 524         static map<string, string> packages;
 525         if (packages.empty()) {
 526                 // We could have a race condition here that two threads
 527                 // discover an empty map at the same time and want to fill
 528                 // it, but that is no problem, since the same contents is
 529                 // filled in twice then. Having the locker inside the
 530                 // packages.empty() condition has the advantage that we
 531                 // don't need the mutex overhead for simple reading.
 532                 static Mutex mutex;
 533                 Mutex::Locker locker(&mutex);
 534                 // adding a package here implies a file format change!
 535                 packages["amsmath"] =
 536                         N_("The LaTeX package amsmath is only used if AMS formula types or symbols from the AMS math toolbars are inserted into formulas");
 537                 packages["amssymb"] =
 538                         N_("The LaTeX package amssymb is only used if symbols from the AMS math toolbars are inserted into formulas");
 539                 packages["cancel"] =
 540                         N_("The LaTeX package cancel is only used if \\cancel commands are used in formulas");
 541                 packages["esint"] =
 542                         N_("The LaTeX package esint is only used if special integral symbols are inserted into formulas");
 543                 packages["mathdots"] =
 544                         N_("The LaTeX package mathdots is only used if the command \\iddots is inserted into formulas");
 545                 packages["mathtools"] =
 546                         N_("The LaTeX package mathtools is only used if some mathematical relations are inserted into formulas");
 547                 packages["mhchem"] =
 548                         N_("The LaTeX package mhchem is only used if either the command \\ce or \\cf is inserted into formulas");
 549                 packages["stackrel"] =
 550                         N_("The LaTeX package stackrel is only used if the command \\stackrel with subscript is inserted into formulas");
 551                 packages["stmaryrd"] =
 552                         N_("The LaTeX package stmaryrd is only used if symbols from the St Mary's Road symbol font for theoretical computer science are inserted into formulas");
 553                 packages["undertilde"] =
 554                         N_("The LaTeX package undertilde is only used if you use the math frame decoration 'utilde'");
 555         }
 556         return packages;
 557 }
 558
 559
 560 bool BufferParams::useBibtopic() const
 561 {
 562         if (useBiblatex())
 563                 return false;
 564         return (use_bibtopic || (!multibib.empty() && multibib != "child"));
 565 }
 566
 567
 568 AuthorList & BufferParams::authors()
 569 {
 570         return pimpl_->authorlist;
 571 }
 572
 573
 574 AuthorList const & BufferParams::authors() const
 575 {
 576         return pimpl_->authorlist;
 577 }
 578
 579
 580 void BufferParams::addAuthor(Author const & a)
 581 {
 582         author_map_[a.bufferId()] = pimpl_->authorlist.record(a);
 583 }
 584
 585
 586 BranchList & BufferParams::branchlist()
 587 {
 588         return pimpl_->branchlist;
 589 }
 590
 591
 592 BranchList const & BufferParams::branchlist() const
 593 {
 594         return pimpl_->branchlist;
 595 }
 596
 597
 598 IndicesList & BufferParams::indiceslist()
 599 {
 600         return pimpl_->indiceslist;
 601 }
 602
 603
 604 IndicesList const & BufferParams::indiceslist() const
 605 {
 606         return pimpl_->indiceslist;
 607 }
 608
 609
 610 WordLangTable & BufferParams::spellignore()
 611 {
 612         return pimpl_->spellignore;
 613 }
 614
 615
 616 WordLangTable const & BufferParams::spellignore() const
 617 {
 618         return pimpl_->spellignore;
 619 }
 620
 621
 622 bool BufferParams::spellignored(WordLangTuple const & wl) const
 623 {
 624         bool has_item = false;
 625         vector<WordLangTuple> il = spellignore();
 626         vector<WordLangTuple>::const_iterator it = il.begin();
 627         for (; it != il.end(); ++it) {
 628                 if (it->lang()->code() != wl.lang()->code())
 629                         continue;
 630                 if (it->word() == wl.word()) {
 631                         has_item = true;
 632                         break;
 633                 }
 634         }
 635         return has_item;
 636 }
 637
 638
 639 Bullet & BufferParams::temp_bullet(lyx::size_type const index)
 640 {
 641         LASSERT(index < 4, return pimpl_->temp_bullets[0]);
 642         return pimpl_->temp_bullets[index];
 643 }
 644
 645
 646 Bullet const & BufferParams::temp_bullet(lyx::size_type const index) const
 647 {
 648         LASSERT(index < 4, return pimpl_->temp_bullets[0]);
 649         return pimpl_->temp_bullets[index];
 650 }
 651
 652
 653 Bullet & BufferParams::user_defined_bullet(lyx::size_type const index)
 654 {
 655         LASSERT(index < 4, return pimpl_->temp_bullets[0]);
 656         return pimpl_->user_defined_bullets[index];
 657 }
 658
 659
 660 Bullet const & BufferParams::user_defined_bullet(lyx::size_type const index) const
 661 {
 662         LASSERT(index < 4, return pimpl_->temp_bullets[0]);
 663         return pimpl_->user_defined_bullets[index];
 664 }
 665
 666
 667 Spacing & BufferParams::spacing()
 668 {
 669         return pimpl_->spacing;
 670 }
 671
 672
 673 Spacing const & BufferParams::spacing() const
 674 {
 675         return pimpl_->spacing;
 676 }
 677
 678
 679 PDFOptions & BufferParams::pdfoptions()
 680 {
 681         return pimpl_->pdfoptions;
 682 }
 683
 684
 685 PDFOptions const & BufferParams::pdfoptions() const
 686 {
 687         return pimpl_->pdfoptions;
 688 }
 689
 690
 691 Length const & BufferParams::getMathIndent() const
 692 {
 693         return pimpl_->mathindent;
 694 }
 695
 696
 697 void BufferParams::setMathIndent(Length const & indent)
 698 {
 699         pimpl_->mathindent = indent;
 700 }
 701
 702
 703 Length const & BufferParams::getParIndent() const
 704 {
 705         return pimpl_->parindent;
 706 }
 707
 708
 709 void BufferParams::setParIndent(Length const & indent)
 710 {
 711         pimpl_->parindent = indent;
 712 }
 713
 714
 715 VSpace const & BufferParams::getDefSkip() const
 716 {
 717         return pimpl_->defskip;
 718 }
 719
 720
 721 void BufferParams::setDefSkip(VSpace const & vs)
 722 {
 723         // DEFSKIP will cause an infinite loop
 724         LASSERT(vs.kind() != VSpace::DEFSKIP, return);
 725         pimpl_->defskip = vs;
 726 }
 727
 728
 729 BufferParams::MathNumber BufferParams::getMathNumber() const
 730 {
 731         if (math_numbering_side != DEFAULT)
 732                 return math_numbering_side;
 733         // FIXME: do not hardcode language here
 734         else if (language->lang() == "arabic_arabi"
 735                  || documentClass().provides("leqno"))
 736                 return LEFT;
 737         else
 738                 return RIGHT;
 739 }
 740
 741
 742 string BufferParams::readToken(Lexer & lex, string const & token,
 743         FileName const & filename)
 744 {
 745         string result;
 746         FileName const & filepath = filename.onlyPath();
 747
 748         if (token == "\\textclass") {
 749                 lex.next();
 750                 string const classname = lex.getString();
 751                 // if there exists a local layout file, ignore the system one
 752                 // NOTE: in this case, the textclass (.cls file) is assumed to
 753                 // be available.
 754                 string tcp;
 755                 LayoutFileList & bcl = LayoutFileList::get();
 756                 if (!filepath.empty()) {
 757                         // If classname is an absolute path, the document is
 758                         // using a local layout file which could not be accessed
 759                         // by a relative path. In this case the path is correct
 760                         // even if the document was moved to a different
 761                         // location. However, we will have a problem if the
 762                         // document was generated on a different platform.
 763                         bool isabsolute = FileName::isAbsolute(classname);
 764                         string const classpath = onlyPath(classname);
 765                         string const path = isabsolute ? classpath
 766                                 : FileName(addPath(filepath.absFileName(),
 767                                                 classpath)).realPath();
 768                         string const oldpath = isabsolute ? string()
 769                                 : FileName(addPath(origin, classpath)).realPath();
 770                         tcp = bcl.addLocalLayout(onlyFileName(classname), path, oldpath);
 771                 }
 772                 // that returns non-empty if a "local" layout file is found.
 773                 if (!tcp.empty()) {
 774                         result = to_utf8(makeRelPath(from_utf8(onlyPath(tcp)),
 775                                                 from_utf8(filepath.absFileName())));
 776                         if (result.empty())
 777                                 result = ".";
 778                         setBaseClass(onlyFileName(tcp));
 779                 } else
 780                         setBaseClass(onlyFileName(classname));
 781                 // We assume that a tex class exists for local or unknown
 782                 // layouts so this warning, will only be given for system layouts.
 783                 if (!baseClass()->isTeXClassAvailable()) {
 784                         docstring const desc =
 785                                 translateIfPossible(from_utf8(baseClass()->description()));
 786                         docstring const prereqs =
 787                                 from_utf8(baseClass()->prerequisites());
 788                         docstring const msg =
 789                                 bformat(_("The selected document class\n"
 790                                                  "\t%1$s\n"
 791                                                  "requires external files that are not available.\n"
 792                                                  "The document class can still be used, but the\n"
 793                                                  "document cannot be compiled until the following\n"
 794                                                  "prerequisites are installed:\n"
 795                                                  "\t%2$s\n"
 796                                                  "See section 3.1.2.2 (Class Availability) of the\n"
 797                                                  "User's Guide for more information."), desc, prereqs);
 798                         frontend::Alert::warning(_("Document class not available"),
 799                                        msg, true);
 800                 }
 801         } else if (token == "\\save_transient_properties") {
 802                 lex >> save_transient_properties;
 803         } else if (token == "\\origin") {
 804                 lex.eatLine();
 805                 origin = lex.getString();
 806                 string const sysdirprefix = "/systemlyxdir/";
 807                 if (prefixIs(origin, sysdirprefix)) {
 808                         string docsys;
 809                         if (inSystemDir(filepath, docsys))
 810                                 origin.replace(0, sysdirprefix.length() - 1, docsys);
 811                         else
 812                                 origin.replace(0, sysdirprefix.length() - 1,
 813                                         package().system_support().absFileName());
 814                 }
 815         } else if (token == "\\begin_metadata") {
 816                 readDocumentMetadata(lex);
 817         } else if (token == "\\begin_preamble") {
 818                 readPreamble(lex);
 819         } else if (token == "\\begin_local_layout") {
 820                 readLocalLayout(lex, false);
 821         } else if (token == "\\begin_forced_local_layout") {
 822                 readLocalLayout(lex, true);
 823         } else if (token == "\\begin_modules") {
 824                 readModules(lex);
 825         } else if (token == "\\begin_removed_modules") {
 826                 readRemovedModules(lex);
 827         } else if (token == "\\begin_includeonly") {
 828                 readIncludeonly(lex);
 829         } else if (token == "\\maintain_unincluded_children") {
 830                 string tmp;
 831                 lex >> tmp;
 832                 if (tmp == "no")
 833                         maintain_unincluded_children = CM_None;
 834                 else if (tmp == "mostly")
 835                         maintain_unincluded_children = CM_Mostly;
 836                 else if (tmp == "strict")
 837                         maintain_unincluded_children = CM_Strict;
 838         } else if (token == "\\options") {
 839                 lex.eatLine();
 840                 options = lex.getString();
 841         } else if (token == "\\use_default_options") {
 842                 lex >> use_default_options;
 843         } else if (token == "\\master") {
 844                 lex.eatLine();
 845                 master = lex.getString();
 846                 if (!filepath.empty() && FileName::isAbsolute(origin)) {
 847                         bool const isabs = FileName::isAbsolute(master);
 848                         FileName const abspath(isabs ? master : origin + master);
 849                         bool const moved = filepath != FileName(origin);
 850                         if (moved && abspath.exists()) {
 851                                 docstring const path = isabs
 852                                         ? from_utf8(master)
 853                                         : from_utf8(abspath.realPath());
 854                                 docstring const refpath =
 855                                         from_utf8(filepath.absFileName());
 856                                 master = to_utf8(makeRelPath(path, refpath));
 857                         }
 858                 }
 859         } else if (token == "\\suppress_date") {
 860                 lex >> suppress_date;
 861         } else if (token == "\\justification") {
 862                 lex >> justification;
 863         } else if (token == "\\language") {
 864                 readLanguage(lex);
 865         } else if (token == "\\language_package") {
 866                 lex.eatLine();
 867                 lang_package = lex.getString();
 868         } else if (token == "\\inputencoding") {
 869                 lex >> inputenc;
 870         } else if (token == "\\graphics") {
 871                 readGraphicsDriver(lex);
 872         } else if (token == "\\default_output_format") {
 873                 lex >> default_output_format;
 874         } else if (token == "\\bibtex_command") {
 875                 lex.eatLine();
 876                 bibtex_command = lex.getString();
 877         } else if (token == "\\index_command") {
 878                 lex.eatLine();
 879                 index_command = lex.getString();
 880         } else if (token == "\\fontencoding") {
 881                 lex.eatLine();
 882                 fontenc = lex.getString();
 883         } else if (token == "\\font_roman") {
 884                 lex >> fonts_roman[0];
 885                 lex >> fonts_roman[1];
 886         } else if (token == "\\font_sans") {
 887                 lex >> fonts_sans[0];
 888                 lex >> fonts_sans[1];
 889         } else if (token == "\\font_typewriter") {
 890                 lex >> fonts_typewriter[0];
 891                 lex >> fonts_typewriter[1];
 892         } else if (token == "\\font_math") {
 893                 lex >> fonts_math[0];
 894                 lex >> fonts_math[1];
 895         } else if (token == "\\font_default_family") {
 896                 lex >> fonts_default_family;
 897         } else if (token == "\\use_non_tex_fonts") {
 898                 lex >> useNonTeXFonts;
 899         } else if (token == "\\font_sc") {
 900                 lex >> fonts_expert_sc;
 901         } else if (token == "\\font_roman_osf") {
 902                 lex >> fonts_roman_osf;
 903         } else if (token == "\\font_sans_osf") {
 904                 lex >> fonts_sans_osf;
 905         } else if (token == "\\font_typewriter_osf") {
 906                 lex >> fonts_typewriter_osf;
 907         } else if (token == "\\font_roman_opts") {
 908                 lex >> font_roman_opts;
 909         } else if (token == "\\font_sf_scale") {
 910                 lex >> fonts_sans_scale[0];
 911                 lex >> fonts_sans_scale[1];
 912         } else if (token == "\\font_sans_opts") {
 913                 lex >> font_sans_opts;
 914         } else if (token == "\\font_tt_scale") {
 915                 lex >> fonts_typewriter_scale[0];
 916                 lex >> fonts_typewriter_scale[1];
 917         } else if (token == "\\font_typewriter_opts") {
 918                 lex >> font_typewriter_opts;
 919         } else if (token == "\\font_cjk") {
 920                 lex >> fonts_cjk;
 921         } else if (token == "\\use_microtype") {
 922                 lex >> use_microtype;
 923         } else if (token == "\\use_dash_ligatures") {
 924                 lex >> use_dash_ligatures;
 925         } else if (token == "\\paragraph_separation") {
 926                 string parsep;
 927                 lex >> parsep;
 928                 paragraph_separation = parseptranslator().find(parsep);
 929         } else if (token == "\\paragraph_indentation") {
 930                 lex.next();
 931                 string parindent = lex.getString();
 932                 if (parindent == "default")
 933                         pimpl_->parindent = Length();
 934                 else
 935                         pimpl_->parindent = Length(parindent);
 936         } else if (token == "\\defskip") {
 937                 lex.next();
 938                 string const defskip = lex.getString();
 939                 pimpl_->defskip = VSpace(defskip);
 940                 if (pimpl_->defskip.kind() == VSpace::DEFSKIP)
 941                         // that is invalid
 942                         pimpl_->defskip = VSpace(VSpace::MEDSKIP);
 943         } else if (token == "\\is_math_indent") {
 944                 lex >> is_math_indent;
 945         } else if (token == "\\math_indentation") {
 946                 lex.next();
 947                 string mathindent = lex.getString();
 948                 if (mathindent == "default")
 949                         pimpl_->mathindent = Length();
 950                 else
 951                         pimpl_->mathindent = Length(mathindent);
 952         } else if (token == "\\math_numbering_side") {
 953                 string tmp;
 954                 lex >> tmp;
 955                 if (tmp == "left")
 956                         math_numbering_side = LEFT;
 957                 else if (tmp == "right")
 958                         math_numbering_side = RIGHT;
 959                 else
 960                         math_numbering_side = DEFAULT;
 961         } else if (token == "\\quotes_style") {
 962                 string qstyle;
 963                 lex >> qstyle;
 964                 quotes_style = quotesstyletranslator().find(qstyle);
 965         } else if (token == "\\dynamic_quotes") {
 966                 lex >> dynamic_quotes;
 967         } else if (token == "\\papersize") {
 968                 string ppsize;
 969                 lex >> ppsize;
 970                 papersize = papersizetranslator().find(ppsize);
 971         } else if (token == "\\use_geometry") {
 972                 lex >> use_geometry;
 973         } else if (token == "\\use_package") {
 974                 string package;
 975                 int use;
 976                 lex >> package;
 977                 lex >> use;
 978                 use_package(package, packagetranslator().find(use));
 979         } else if (token == "\\cite_engine") {
 980                 lex.eatLine();
 981                 cite_engine_ = lex.getString();
 982         } else if (token == "\\cite_engine_type") {
 983                 string engine_type;
 984                 lex >> engine_type;
 985                 cite_engine_type_ = theCiteEnginesList.getType(engine_type);
 986         } else if (token == "\\biblio_style") {
 987                 lex.eatLine();
 988                 biblio_style = lex.getString();
 989         } else if (token == "\\biblio_options") {
 990                 lex.eatLine();
 991                 biblio_opts = trim(lex.getString());
 992         } else if (token == "\\biblatex_bibstyle") {
 993                 lex.eatLine();
 994                 biblatex_bibstyle = trim(lex.getString());
 995         } else if (token == "\\biblatex_citestyle") {
 996                 lex.eatLine();
 997                 biblatex_citestyle = trim(lex.getString());
 998         } else if (token == "\\use_bibtopic") {
 999                 lex >> use_bibtopic;
1000         } else if (token == "\\multibib") {
1001                 lex >> multibib;
1002         } else if (token == "\\use_indices") {
1003                 lex >> use_indices;
1004         } else if (token == "\\tracking_changes") {
1005                 lex >> track_changes;
1006         } else if (token == "\\output_changes") {
1007                 lex >> output_changes;
1008         } else if (token == "\\change_bars") {
1009                 lex >> change_bars;
1010         } else if (token == "\\postpone_fragile_content") {
1011                 lex >> postpone_fragile_content;
1012         } else if (token == "\\branch") {
1013                 lex.eatLine();
1014                 docstring branch = lex.getDocString();
1015                 branchlist().add(branch);
1016                 while (true) {
1017                         lex.next();
1018                         string const tok = lex.getString();
1019                         if (tok == "\\end_branch")
1020                                 break;
1021                         Branch * branch_ptr = branchlist().find(branch);
1022                         if (tok == "\\selected") {
1023                                 lex.next();
1024                                 if (branch_ptr)
1025                                         branch_ptr->setSelected(lex.getInteger());
1026                         }
1027                         if (tok == "\\filename_suffix") {
1028                                 lex.next();
1029                                 if (branch_ptr)
1030                                         branch_ptr->setFileNameSuffix(lex.getInteger());
1031                         }
1032                         if (tok == "\\color") {
1033                                 lex.eatLine();
1034                                 vector<string> const colors = getVectorFromString(lex.getString(), " ");
1035                                 string const lmcolor = colors.front();
1036                                 string dmcolor;
1037                                 if (colors.size() > 1)
1038                                         dmcolor = colors.back();
1039                                 if (branch_ptr)
1040                                         branch_ptr->setColors(lmcolor, dmcolor);
1041                         }
1042                 }
1043         } else if (token == "\\index") {
1044                 lex.eatLine();
1045                 docstring index = lex.getDocString();
1046                 docstring shortcut;
1047                 indiceslist().add(index);
1048                 while (true) {
1049                         lex.next();
1050                         string const tok = lex.getString();
1051                         if (tok == "\\end_index")
1052                                 break;
1053                         Index * index_ptr = indiceslist().find(index);
1054                         if (tok == "\\shortcut") {
1055                                 lex.next();
1056                                 shortcut = lex.getDocString();
1057                                 if (index_ptr)
1058                                         index_ptr->setShortcut(shortcut);
1059                         }
1060                         if (tok == "\\color") {
1061                                 lex.eatLine();
1062                                 string color = lex.getString();
1063                                 if (index_ptr)
1064                                         index_ptr->setColor(color);
1065                                 // Update also the Color table:
1066                                 if (color == "none")
1067                                         color = lcolor.getX11HexName(Color_background);
1068                                 // FIXME UNICODE
1069                                 if (!shortcut.empty())
1070                                         lcolor.setColor(to_utf8(shortcut)+ "@" + filename.absFileName(), color);
1071                         }
1072                 }
1073         } else if (token == "\\spellchecker_ignore") {
1074                 lex.eatLine();
1075                 docstring wl = lex.getDocString();
1076                 docstring language;
1077                 docstring word = split(wl, language, ' ');
1078                 Language const * lang = languages.getLanguage(to_ascii(language));
1079                 if (lang)
1080                         spellignore().push_back(WordLangTuple(word, lang));
1081         } else if (token == "\\author") {
1082                 lex.eatLine();
1083                 istringstream ss(lex.getString());
1084                 Author a;
1085                 ss >> a;
1086                 addAuthor(a);
1087         } else if (token == "\\paperorientation") {
1088                 string orient;
1089                 lex >> orient;
1090                 orientation = paperorientationtranslator().find(orient);
1091         } else if (token == "\\backgroundcolor") {
1092                 lex.eatLine();
1093                 backgroundcolor = lyx::rgbFromHexName(lex.getString());
1094                 isbackgroundcolor = true;
1095         } else if (token == "\\fontcolor") {
1096                 lex.eatLine();
1097                 fontcolor = lyx::rgbFromHexName(lex.getString());
1098                 isfontcolor = true;
1099         } else if (token == "\\notefontcolor") {
1100                 lex.eatLine();
1101                 string color = lex.getString();
1102                 notefontcolor = lyx::rgbFromHexName(color);
1103                 lcolor.setColor("notefontcolor", color);
1104                 lcolor.setLaTeXName("notefontcolor", "note_fontcolor");
1105                 lcolor.setGUIName("notefontcolor", N_("greyedout inset text"));
1106                 // set a local name for the painter
1107                 lcolor.setColor("notefontcolor@" + filename.absFileName(), color);
1108                 isnotefontcolor = true;
1109         } else if (token == "\\boxbgcolor") {
1110                 lex.eatLine();
1111                 string color = lex.getString();
1112                 boxbgcolor = lyx::rgbFromHexName(color);
1113                 lcolor.setColor("boxbgcolor@" + filename.absFileName(), color);
1114                 isboxbgcolor = true;
1115         } else if (token == "\\paperwidth") {
1116                 lex >> paperwidth;
1117         } else if (token == "\\paperheight") {
1118                 lex >> paperheight;
1119         } else if (token == "\\leftmargin") {
1120                 lex >> leftmargin;
1121         } else if (token == "\\topmargin") {
1122                 lex >> topmargin;
1123         } else if (token == "\\rightmargin") {
1124                 lex >> rightmargin;
1125         } else if (token == "\\bottommargin") {
1126                 lex >> bottommargin;
1127         } else if (token == "\\headheight") {
1128                 lex >> headheight;
1129         } else if (token == "\\headsep") {
1130                 lex >> headsep;
1131         } else if (token == "\\footskip") {
1132                 lex >> footskip;
1133         } else if (token == "\\columnsep") {
1134                 lex >> columnsep;
1135         } else if (token == "\\paperfontsize") {
1136                 lex >> fontsize;
1137         } else if (token == "\\papercolumns") {
1138                 lex >> columns;
1139         } else if (token == "\\listings_params") {
1140                 string par;
1141                 lex >> par;
1142                 listings_params = InsetListingsParams(par).params();
1143         } else if (token == "\\papersides") {
1144                 int psides;
1145                 lex >> psides;
1146                 sides = sidestranslator().find(psides);
1147         } else if (token == "\\paperpagestyle") {
1148                 lex >> pagestyle;
1149         } else if (token == "\\tablestyle") {
1150                 lex >> tablestyle;
1151         } else if (token == "\\bullet") {
1152                 readBullets(lex);
1153         } else if (token == "\\bulletLaTeX") {
1154                 readBulletsLaTeX(lex);
1155         } else if (token == "\\secnumdepth") {
1156                 lex >> secnumdepth;
1157         } else if (token == "\\tocdepth") {
1158                 lex >> tocdepth;
1159         } else if (token == "\\spacing") {
1160                 string nspacing;
1161                 lex >> nspacing;
1162                 string tmp_val;
1163                 if (nspacing == "other") {
1164                         lex >> tmp_val;
1165                 }
1166                 spacing().set(spacetranslator().find(nspacing), tmp_val);
1167         } else if (token == "\\float_placement") {
1168                 lex >> float_placement;
1169         } else if (token == "\\float_alignment") {
1170                 lex >> float_alignment;
1171
1172         } else if (prefixIs(token, "\\pdf_") || token == "\\use_hyperref") {
1173                 string toktmp = pdfoptions().readToken(lex, token);
1174                 if (!toktmp.empty()) {
1175                         lyxerr << "PDFOptions::readToken(): Unknown token: " <<
1176                                 toktmp << endl;
1177                         return toktmp;
1178                 }
1179         } else if (token == "\\html_math_output") {
1180                 int temp;
1181                 lex >> temp;
1182                 html_math_output = static_cast<MathOutput>(temp);
1183         } else if (token == "\\html_be_strict") {
1184                 lex >> html_be_strict;
1185         } else if (token == "\\html_css_as_file") {
1186                 lex >> html_css_as_file;
1187         } else if (token == "\\html_math_img_scale") {
1188                 lex >> html_math_img_scale;
1189         } else if (token == "\\html_latex_start") {
1190                 lex.eatLine();
1191                 html_latex_start = lex.getString();
1192         } else if (token == "\\html_latex_end") {
1193                 lex.eatLine();
1194                 html_latex_end = lex.getString();
1195         } else if (token == "\\docbook_table_output") {
1196                 int temp;
1197                 lex >> temp;
1198                 docbook_table_output = static_cast<TableOutput>(temp);
1199         } else if (token == "\\docbook_mathml_prefix") {
1200                 int temp;
1201                 lex >> temp;
1202                 docbook_mathml_prefix = static_cast<MathMLNameSpacePrefix>(temp);
1203         } else if (token == "\\output_sync") {
1204                 lex >> output_sync;
1205         } else if (token == "\\output_sync_macro") {
1206                 lex >> output_sync_macro;
1207         } else if (token == "\\use_refstyle") {
1208                 lex >> use_refstyle;
1209         } else if (token == "\\use_formatted_ref") {
1210                 lex >> use_formatted_ref;
1211         } else if (token == "\\use_minted") {
1212                 lex >> use_minted;
1213         } else if (token == "\\use_lineno") {
1214                 lex >> use_lineno;
1215         } else if (token == "\\lineno_options") {
1216                 lex.eatLine();
1217                 lineno_opts = trim(lex.getString());
1218         } else {
1219                 lyxerr << "BufferParams::readToken(): Unknown token: " <<
1220                         token << endl;
1221                 return token;
1222         }
1223
1224         return result;
1225 }
1226
1227
1228 namespace {
1229         // Quote argument if it contains spaces
1230         string quoteIfNeeded(string const & str) {
1231                 if (contains(str, ' '))
1232                         return "\"" + str + "\"";
1233                 return str;
1234         }
1235 } // namespace
1236
1237
1238 void BufferParams::writeFile(ostream & os, Buffer const * buf) const
1239 {
1240         // The top of the file is written by the buffer.
1241         // Prints out the buffer info into the .lyx file given by file
1242
1243         os << "\\save_transient_properties "
1244            << convert<string>(save_transient_properties) << '\n';
1245
1246         // the document directory (must end with a path separator)
1247         // realPath() is used to resolve symlinks, while addPath(..., "")
1248         // ensures a trailing path separator.
1249         string docsys;
1250         string filepath = addPath(buf->fileName().onlyPath().realPath(), "");
1251         string const sysdir = inSystemDir(FileName(filepath), docsys) ? docsys
1252                         : addPath(package().system_support().realPath(), "");
1253         string const relpath =
1254                 to_utf8(makeRelPath(from_utf8(filepath), from_utf8(sysdir)));
1255         if (!prefixIs(relpath, "../") && !FileName::isAbsolute(relpath))
1256                 filepath = addPath("/systemlyxdir", relpath);
1257         else if (!save_transient_properties || !lyxrc.save_origin)
1258                 filepath = "unavailable";
1259         os << "\\origin " << quoteIfNeeded(filepath) << '\n';
1260
1261         // the textclass
1262         os << "\\textclass "
1263            << quoteIfNeeded(buf->includedFilePath(addName(buf->layoutPos(),
1264                                                 baseClass()->name()), "layout"))
1265            << '\n';
1266
1267         // then document metadata
1268         if (!document_metadata.empty()) {
1269                 // remove '\n' from the end of document_metadata
1270                 docstring const tmpmd = rtrim(document_metadata, "\n");
1271                 os << "\\begin_metadata\n"
1272                    << to_utf8(tmpmd)
1273                    << "\n\\end_metadata\n";
1274         }
1275
1276         // then the preamble
1277         if (!preamble.empty()) {
1278                 // remove '\n' from the end of preamble
1279                 docstring const tmppreamble = rtrim(preamble, "\n");
1280                 os << "\\begin_preamble\n"
1281                    << to_utf8(tmppreamble)
1282                    << "\n\\end_preamble\n";
1283         }
1284
1285         // the options
1286         if (!options.empty()) {
1287                 os << "\\options " << options << '\n';
1288         }
1289
1290         // use the class options defined in the layout?
1291         os << "\\use_default_options "
1292            << convert<string>(use_default_options) << "\n";
1293
1294         // the master document
1295         if (!master.empty()) {
1296                 os << "\\master " << master << '\n';
1297         }
1298
1299         // removed modules
1300         if (!removed_modules_.empty()) {
1301                 os << "\\begin_removed_modules" << '\n';
1302                 for (auto const & mod : removed_modules_)
1303                         os << mod << '\n';
1304                 os << "\\end_removed_modules" << '\n';
1305         }
1306
1307         // the modules
1308         if (!layout_modules_.empty()) {
1309                 os << "\\begin_modules" << '\n';
1310                 for (auto const & mod : layout_modules_)
1311                         os << mod << '\n';
1312                 os << "\\end_modules" << '\n';
1313         }
1314
1315         // includeonly
1316         if (!included_children_.empty()) {
1317                 os << "\\begin_includeonly" << '\n';
1318                 for (auto const & c : included_children_)
1319                         os << c << '\n';
1320                 os << "\\end_includeonly" << '\n';
1321         }
1322         string muc = "no";
1323         switch (maintain_unincluded_children) {
1324         case CM_Mostly:
1325                 muc = "mostly";
1326                 break;
1327         case CM_Strict:
1328                 muc = "strict";
1329                 break;
1330         case CM_None:
1331         default:
1332                 break;
1333         }
1334         os << "\\maintain_unincluded_children " << muc << '\n';
1335
1336         // local layout information
1337         docstring const local_layout = getLocalLayout(false);
1338         if (!local_layout.empty()) {
1339                 // remove '\n' from the end
1340                 docstring const tmplocal = rtrim(local_layout, "\n");
1341                 os << "\\begin_local_layout\n"
1342                    << to_utf8(tmplocal)
1343                    << "\n\\end_local_layout\n";
1344         }
1345         docstring const forced_local_layout = getLocalLayout(true);
1346         if (!forced_local_layout.empty()) {
1347                 // remove '\n' from the end
1348                 docstring const tmplocal = rtrim(forced_local_layout, "\n");
1349                 os << "\\begin_forced_local_layout\n"
1350                    << to_utf8(tmplocal)
1351                    << "\n\\end_forced_local_layout\n";
1352         }
1353
1354         // then the text parameters
1355         if (language != ignore_language)
1356                 os << "\\language " << language->lang() << '\n';
1357         os << "\\language_package " << lang_package
1358            << "\n\\inputencoding " << inputenc
1359            << "\n\\fontencoding " << fontenc
1360            << "\n\\font_roman \"" << fonts_roman[0]
1361            << "\" \"" << fonts_roman[1] << '"'
1362            << "\n\\font_sans \"" << fonts_sans[0]
1363            << "\" \"" << fonts_sans[1] << '"'
1364            << "\n\\font_typewriter \"" << fonts_typewriter[0]
1365            << "\" \"" << fonts_typewriter[1] << '"'
1366            << "\n\\font_math \"" << fonts_math[0]
1367            << "\" \"" << fonts_math[1] << '"'
1368            << "\n\\font_default_family " << fonts_default_family
1369            << "\n\\use_non_tex_fonts " << convert<string>(useNonTeXFonts)
1370            << "\n\\font_sc " << convert<string>(fonts_expert_sc)
1371            << "\n\\font_roman_osf " << convert<string>(fonts_roman_osf)
1372            << "\n\\font_sans_osf " << convert<string>(fonts_sans_osf)
1373            << "\n\\font_typewriter_osf " << convert<string>(fonts_typewriter_osf);
1374         if (!font_roman_opts.empty())
1375                 os << "\n\\font_roman_opts \"" << font_roman_opts << "\"";
1376         os << "\n\\font_sf_scale " << fonts_sans_scale[0]
1377            << ' ' << fonts_sans_scale[1];
1378         if (!font_sans_opts.empty())
1379                 os << "\n\\font_sans_opts \"" << font_sans_opts << "\"";
1380         os << "\n\\font_tt_scale " << fonts_typewriter_scale[0]
1381            << ' ' << fonts_typewriter_scale[1];
1382         if (!font_typewriter_opts.empty())
1383                 os << "\n\\font_typewriter_opts \"" << font_typewriter_opts << "\"";
1384         os << '\n';
1385         if (!fonts_cjk.empty())
1386                 os << "\\font_cjk " << fonts_cjk << '\n';
1387         os << "\\use_microtype " << convert<string>(use_microtype) << '\n';
1388         os << "\\use_dash_ligatures " << convert<string>(use_dash_ligatures) << '\n';
1389         os << "\\graphics " << graphics_driver << '\n';
1390         os << "\\default_output_format " << default_output_format << '\n';
1391         os << "\\output_sync " << output_sync << '\n';
1392         if (!output_sync_macro.empty())
1393                 os << "\\output_sync_macro \"" << output_sync_macro << "\"\n";
1394         os << "\\bibtex_command " << bibtex_command << '\n';
1395         os << "\\index_command " << index_command << '\n';
1396
1397         if (!float_placement.empty())
1398                 os << "\\float_placement " << float_placement << '\n';
1399         if (!float_alignment.empty())
1400                 os << "\\float_alignment " << float_alignment << '\n';
1401         os << "\\paperfontsize " << fontsize << '\n';
1402
1403         spacing().writeFile(os);
1404         pdfoptions().writeFile(os);
1405
1406         os << "\\papersize " << string_papersize[papersize]
1407            << "\n\\use_geometry " << convert<string>(use_geometry);
1408         map<string, string> const & packages = auto_packages();
1409         for (auto const & pack : packages)
1410                 os << "\n\\use_package " << pack.first << ' '
1411                    << use_package(pack.first);
1412
1413         os << "\n\\cite_engine ";
1414
1415         if (!cite_engine_.empty())
1416                 os << cite_engine_;
1417         else
1418                 os << "basic";
1419
1420         os << "\n\\cite_engine_type " << theCiteEnginesList.getTypeAsString(cite_engine_type_);
1421
1422         if (!biblio_style.empty())
1423                 os << "\n\\biblio_style " << biblio_style;
1424         if (!biblio_opts.empty())
1425                 os << "\n\\biblio_options " << biblio_opts;
1426         if (!biblatex_bibstyle.empty())
1427                 os << "\n\\biblatex_bibstyle " << biblatex_bibstyle;
1428         if (!biblatex_citestyle.empty())
1429                 os << "\n\\biblatex_citestyle " << biblatex_citestyle;
1430         if (!multibib.empty())
1431                 os << "\n\\multibib " << multibib;
1432
1433         os << "\n\\use_bibtopic " << convert<string>(use_bibtopic)
1434            << "\n\\use_indices " << convert<string>(use_indices)
1435            << "\n\\paperorientation " << string_orientation[orientation]
1436            << "\n\\suppress_date " << convert<string>(suppress_date)
1437            << "\n\\justification " << convert<string>(justification)
1438            << "\n\\use_refstyle " << use_refstyle
1439            << "\n\\use_formatted_ref " << use_formatted_ref
1440            << "\n\\use_minted " << use_minted
1441            << "\n\\use_lineno " << use_lineno
1442            << '\n';
1443
1444         if (!lineno_opts.empty())
1445                 os << "\\lineno_options " << lineno_opts << '\n';
1446
1447         if (isbackgroundcolor)
1448                 os << "\\backgroundcolor " << lyx::X11hexname(backgroundcolor) << '\n';
1449         if (isfontcolor)
1450                 os << "\\fontcolor " << lyx::X11hexname(fontcolor) << '\n';
1451         if (isnotefontcolor)
1452                 os << "\\notefontcolor " << lyx::X11hexname(notefontcolor) << '\n';
1453         if (isboxbgcolor)
1454                 os << "\\boxbgcolor " << lyx::X11hexname(boxbgcolor) << '\n';
1455
1456         for (auto const & br : branchlist()) {
1457                 os << "\\branch " << to_utf8(br.branch())
1458                    << "\n\\selected " << br.isSelected()
1459                    << "\n\\filename_suffix " << br.hasFileNameSuffix()
1460                    << "\n\\color " << br.lightModeColor() << " " << br.darkModeColor()
1461                    << "\n\\end_branch"
1462                    << "\n";
1463         }
1464
1465         for (auto const & id : indiceslist()) {
1466                 os << "\\index " << to_utf8(id.index())
1467                    << "\n\\shortcut " << to_utf8(id.shortcut())
1468                    << "\n\\color " << lyx::X11hexname(id.color())
1469                    << "\n\\end_index"
1470                    << "\n";
1471         }
1472
1473         for (auto const & si : spellignore()) {
1474                 os << "\\spellchecker_ignore " << si.lang()->lang()
1475                    << " " << to_utf8(si.word())
1476                    << "\n";
1477         }
1478
1479         if (!paperwidth.empty())
1480                 os << "\\paperwidth "
1481                    << VSpace(paperwidth).asLyXCommand() << '\n';
1482         if (!paperheight.empty())
1483                 os << "\\paperheight "
1484                    << VSpace(paperheight).asLyXCommand() << '\n';
1485         if (!leftmargin.empty())
1486                 os << "\\leftmargin "
1487                    << VSpace(leftmargin).asLyXCommand() << '\n';
1488         if (!topmargin.empty())
1489                 os << "\\topmargin "
1490                    << VSpace(topmargin).asLyXCommand() << '\n';
1491         if (!rightmargin.empty())
1492                 os << "\\rightmargin "
1493                    << VSpace(rightmargin).asLyXCommand() << '\n';
1494         if (!bottommargin.empty())
1495                 os << "\\bottommargin "
1496                    << VSpace(bottommargin).asLyXCommand() << '\n';
1497         if (!headheight.empty())
1498                 os << "\\headheight "
1499                    << VSpace(headheight).asLyXCommand() << '\n';
1500         if (!headsep.empty())
1501                 os << "\\headsep "
1502                    << VSpace(headsep).asLyXCommand() << '\n';
1503         if (!footskip.empty())
1504                 os << "\\footskip "
1505                    << VSpace(footskip).asLyXCommand() << '\n';
1506         if (!columnsep.empty())
1507                 os << "\\columnsep "
1508                          << VSpace(columnsep).asLyXCommand() << '\n';
1509         os << "\\secnumdepth " << secnumdepth
1510            << "\n\\tocdepth " << tocdepth
1511            << "\n\\paragraph_separation "
1512            << string_paragraph_separation[paragraph_separation];
1513         if (!paragraph_separation)
1514                 os << "\n\\paragraph_indentation "
1515                    << (getParIndent().empty() ? "default" : getParIndent().asString());
1516         else
1517                 os << "\n\\defskip " << getDefSkip().asLyXCommand();
1518         os << "\n\\is_math_indent " << is_math_indent;
1519         if (is_math_indent)
1520                 os << "\n\\math_indentation "
1521                    << (getMathIndent().empty() ? "default" : getMathIndent().asString());
1522         os << "\n\\math_numbering_side ";
1523         switch(math_numbering_side) {
1524         case LEFT:
1525                 os << "left";
1526                 break;
1527         case RIGHT:
1528                 os << "right";
1529                 break;
1530         case DEFAULT:
1531                 os << "default";
1532         }
1533         os << "\n\\quotes_style "
1534            << string_quotes_style[static_cast<int>(quotes_style)]
1535            << "\n\\dynamic_quotes " << dynamic_quotes
1536            << "\n\\papercolumns " << columns
1537            << "\n\\papersides " << sides
1538            << "\n\\paperpagestyle " << pagestyle
1539            << "\n\\tablestyle " << tablestyle << '\n';
1540         if (!listings_params.empty())
1541                 os << "\\listings_params \"" <<
1542                         InsetListingsParams(listings_params).encodedString() << "\"\n";
1543         for (int i = 0; i < 4; ++i) {
1544                 if (user_defined_bullet(i) != ITEMIZE_DEFAULTS[i]) {
1545                         if (user_defined_bullet(i).getFont() != -1) {
1546                                 os << "\\bullet " << i << " "
1547                                    << user_defined_bullet(i).getFont() << " "
1548                                    << user_defined_bullet(i).getCharacter() << " "
1549                                    << user_defined_bullet(i).getSize() << "\n";
1550                         }
1551                         else {
1552                                 // FIXME UNICODE
1553                                 os << "\\bulletLaTeX " << i << " \""
1554                                    << lyx::to_ascii(user_defined_bullet(i).getText())
1555                                    << "\"\n";
1556                         }
1557                 }
1558         }
1559
1560         os << "\\tracking_changes "
1561            << (save_transient_properties ? convert<string>(track_changes) : "false")
1562            << '\n';
1563
1564         os << "\\output_changes "
1565            << (save_transient_properties ? convert<string>(output_changes) : "false")
1566            << '\n';
1567
1568         os << "\\change_bars "
1569            << (save_transient_properties ? convert<string>(change_bars) : "false")
1570            << '\n';
1571
1572         os << "\\postpone_fragile_content " << convert<string>(postpone_fragile_content) << '\n';
1573
1574         os << "\\html_math_output " << html_math_output << '\n'
1575            << "\\html_css_as_file " << html_css_as_file << '\n'
1576            << "\\html_be_strict " << convert<string>(html_be_strict) << '\n';
1577
1578         os << "\\docbook_table_output " << docbook_table_output << '\n';
1579         os << "\\docbook_mathml_prefix " << docbook_mathml_prefix << '\n';
1580
1581         if (html_math_img_scale != 1.0)
1582                 os << "\\html_math_img_scale " << convert<string>(html_math_img_scale) << '\n';
1583         if (!html_latex_start.empty())
1584                 os << "\\html_latex_start " << html_latex_start << '\n';
1585         if (!html_latex_end.empty())
1586                  os << "\\html_latex_end " << html_latex_end << '\n';
1587
1588         os << pimpl_->authorlist;
1589 }
1590
1591
1592 void BufferParams::validate(LaTeXFeatures & features) const
1593 {
1594         features.require(documentClass().required());
1595
1596         if (columns > 1 && language->rightToLeft()
1597             && !features.runparams().isFullUnicode())
1598                 features.require("rtloutputdblcol");
1599
1600         if (output_changes) {
1601                 bool xcolorulem = LaTeXFeatures::isAvailable("ulem") &&
1602                                   LaTeXFeatures::isAvailable("xcolor");
1603
1604                 switch (features.runparams().flavor) {
1605                 case Flavor::LaTeX:
1606                 case Flavor::DviLuaTeX:
1607                         if (xcolorulem) {
1608                                 features.require("ct-xcolor-ulem");
1609                                 features.require("ulem");
1610                                 features.require("xcolor");
1611                         } else {
1612                                 features.require("ct-none");
1613                         }
1614                         break;
1615                 case Flavor::LuaTeX:
1616                 case Flavor::PdfLaTeX:
1617                 case Flavor::XeTeX:
1618                         if (xcolorulem) {
1619                                 features.require("ct-xcolor-ulem");
1620                                 features.require("ulem");
1621                                 features.require("xcolor");
1622                                 // improves color handling in PDF output
1623                         } else {
1624                                 features.require("ct-none");
1625                         }
1626                         break;
1627                 default:
1628                         break;
1629                 }
1630                 if (change_bars)
1631                         features.require("changebar");
1632         }
1633
1634         // Floats with 'Here definitely' as default setting.
1635         if (float_placement.find('H') != string::npos)
1636                 features.require("float");
1637
1638         for (auto const & pm : use_packages) {
1639                 if (pm.first == "amsmath") {
1640                         // AMS Style is at document level
1641                         if (pm.second == package_on ||
1642                             features.isProvided("amsmath"))
1643                                 features.require(pm.first);
1644                 } else if (pm.second == package_on)
1645                         features.require(pm.first);
1646         }
1647
1648         // Document-level line spacing
1649         if (spacing().getSpace() != Spacing::Single && !spacing().isDefault())
1650                 features.require("setspace");
1651
1652         // the bullet shapes are buffer level not paragraph level
1653         // so they are tested here
1654         for (int i = 0; i < 4; ++i) {
1655                 if (user_defined_bullet(i) == ITEMIZE_DEFAULTS[i])
1656                         continue;
1657                 int const font = user_defined_bullet(i).getFont();
1658                 if (font == 0) {
1659                         int const c = user_defined_bullet(i).getCharacter();
1660                         if (c == 16
1661                             || c == 17
1662                             || c == 25
1663                             || c == 26
1664                             || c == 31) {
1665                                 features.require("latexsym");
1666                         }
1667                 } else if (font == 1) {
1668                         features.require("amssymb");
1669                 } else if (font >= 2 && font <= 5) {
1670                         features.require("pifont");
1671                 }
1672         }
1673
1674         if (pdfoptions().use_hyperref) {
1675                 features.require("hyperref");
1676                 // due to interferences with babel and hyperref, the color package has to
1677                 // be loaded after hyperref when hyperref is used with the colorlinks
1678                 // option, see http://www.lyx.org/trac/ticket/5291
1679                 if (pdfoptions().colorlinks)
1680                         features.require("color");
1681         }
1682         if (!listings_params.empty()) {
1683                 // do not test validity because listings_params is
1684                 // supposed to be valid
1685                 string par =
1686                         InsetListingsParams(listings_params).separatedParams(true);
1687                 // we can't support all packages, but we should load the color package
1688                 if (par.find("\\color", 0) != string::npos)
1689                         features.require("color");
1690         }
1691
1692         // some languages are only available via polyglossia
1693         if (features.hasPolyglossiaExclusiveLanguages())
1694                 features.require("polyglossia");
1695
1696         if (useNonTeXFonts && fontsMath() != "auto")
1697                 features.require("unicode-math");
1698
1699         if (use_microtype)
1700                 features.require("microtype");
1701
1702         if (!language->required().empty())
1703                 features.require(language->required());
1704 }
1705
1706
1707 bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
1708                               FileName const & filepath) const
1709 {
1710         // DocumentMetadata must come before anything else
1711         if (features.isAvailableAtLeastFrom("LaTeX", 2022, 6)
1712             && !containsOnly(document_metadata, " \n\t")) {
1713                 // Check if the user preamble contains uncodable glyphs
1714                 odocstringstream doc_metadata;
1715                 docstring uncodable_glyphs;
1716                 Encoding const * const enc = features.runparams().encoding;
1717                 if (enc) {
1718                         for (char_type c : document_metadata) {
1719                                 if (!enc->encodable(c)) {
1720                                         docstring const glyph(1, c);
1721                                         LYXERR0("Uncodable character '"
1722                                                 << glyph
1723                                                 << "' in document metadata!");
1724                                         uncodable_glyphs += glyph;
1725                                         if (features.runparams().dryrun) {
1726                                                 doc_metadata << "<" << _("LyX Warning: ")
1727                                                    << _("uncodable character") << " '";
1728                                                 doc_metadata.put(c);
1729                                                 doc_metadata << "'>";
1730                                         }
1731                                 } else
1732                                         doc_metadata.put(c);
1733                         }
1734                 } else
1735                         doc_metadata << document_metadata;
1736
1737                 // On BUFFER_VIEW|UPDATE, warn user if we found uncodable glyphs
1738                 if (!features.runparams().dryrun && !uncodable_glyphs.empty()) {
1739                         frontend::Alert::warning(
1740                                 _("Uncodable character in document metadata"),
1741                                 support::bformat(
1742                                   _("The metadata of your document contains glyphs "
1743                                     "that are unknown in the current document encoding "
1744                                     "(namely %1$s).\nThese glyphs are omitted "
1745                                     " from the output, which may result in "
1746                                     "incomplete output."
1747                                     "\n\nPlease select an appropriate "
1748                                     "document encoding\n"
1749                                     "(such as utf8) or change the "
1750                                     "metadata accordingly."),
1751                                   uncodable_glyphs));
1752                 }
1753                 if (!doc_metadata.str().empty()) {
1754                         os << "\\DocumentMetadata{\n"
1755                            << doc_metadata.str()
1756                            << "}\n";
1757                 }
1758         }
1759
1760         // http://www.tug.org/texmf-dist/doc/latex/base/fixltx2e.pdf
1761         // !! To use the Fix-cm package, load it before \documentclass, and use the command
1762         // \RequirePackage to do so, rather than the normal \usepackage
1763         // Do not try to load any other package before the document class, unless you
1764         // have a thorough understanding of the LATEX internals and know exactly what you
1765         // are doing!
1766         if (features.mustProvide("fix-cm"))
1767                 os << "\\RequirePackage{fix-cm}\n";
1768         // Likewise for fixltx2e. If other packages conflict with this policy,
1769         // treat it as a package bug (and report it!)
1770         // See http://www.latex-project.org/cgi-bin/ltxbugs2html?pr=latex/4407
1771         if (features.mustProvide("fixltx2e"))
1772                 os << "\\RequirePackage{fixltx2e}\n";
1773
1774         os << "\\documentclass";
1775
1776         DocumentClass const & tclass = documentClass();
1777
1778         ostringstream clsoptions; // the document class options.
1779
1780         if (tokenPos(tclass.opt_fontsize(),
1781                      '|', fontsize) >= 0) {
1782                 // only write if existing in list (and not default)
1783                 clsoptions << subst(tclass.fontsizeformat(), "$$s", fontsize) << ",";
1784         }
1785
1786         // paper sizes not supported by the class itself need the
1787         // geometry package
1788         vector<string> classpsizes = getVectorFromString(tclass.opt_pagesize(), "|");
1789         bool class_supported_papersize = papersize == PAPER_DEFAULT
1790                 || find(classpsizes.begin(), classpsizes.end(), string_papersize[papersize]) != classpsizes.end();
1791
1792         if ((!use_geometry || features.isProvided("geometry-light"))
1793             && class_supported_papersize && papersize != PAPER_DEFAULT)
1794                 clsoptions << subst(tclass.pagesizeformat(), "$$s", string_papersize[papersize]) << ",";
1795
1796         // if needed
1797         if (sides != tclass.sides()) {
1798                 switch (sides) {
1799                 case OneSide:
1800                         clsoptions << "oneside,";
1801                         break;
1802                 case TwoSides:
1803                         clsoptions << "twoside,";
1804                         break;
1805                 }
1806         }
1807
1808         // if needed
1809         if (columns != tclass.columns()) {
1810                 if (columns == 2)
1811                         clsoptions << "twocolumn,";
1812                 else
1813                         clsoptions << "onecolumn,";
1814         }
1815
1816         if (!use_geometry
1817             && orientation == ORIENTATION_LANDSCAPE)
1818                 clsoptions << "landscape,";
1819
1820         if (is_math_indent)
1821                 clsoptions << "fleqn,";
1822
1823         switch(math_numbering_side) {
1824         case LEFT:
1825                 clsoptions << "leqno,";
1826                 break;
1827         case RIGHT:
1828                 clsoptions << "reqno,";
1829                 features.require("amsmath");
1830                 break;
1831         case DEFAULT:
1832                 break;
1833         }
1834
1835         // language should be a parameter to \documentclass
1836         if (language->babel() == "hebrew"
1837             && default_language->babel() != "hebrew")
1838                 // This seems necessary
1839                 features.useLanguage(default_language);
1840
1841         ostringstream language_options;
1842         bool const use_babel = features.useBabel() && !features.isProvided("babel");
1843         bool const use_polyglossia = features.usePolyglossia();
1844         bool const global = lyxrc.language_global_options;
1845         if (features.useBabel() || (use_polyglossia && global)) {
1846                 language_options << features.getBabelLanguages();
1847                 if (!language->babel().empty()) {
1848                         if (!language_options.str().empty())
1849                                 language_options << ',';
1850                         language_options << language->babel();
1851                 }
1852                 if (global && !language_options.str().empty())
1853                         clsoptions << language_options.str() << ',';
1854         }
1855
1856         // the predefined options from the layout
1857         if (use_default_options && !tclass.options().empty())
1858                 clsoptions << tclass.options() << ',';
1859
1860         // the user-defined options
1861         if (!options.empty()) {
1862                 clsoptions << options << ',';
1863         }
1864
1865         docstring const strOptions = from_utf8(clsoptions.str());
1866         if (!strOptions.empty()) {
1867                 // Check if class options contain uncodable glyphs
1868                 docstring uncodable_glyphs;
1869                 docstring options_encodable;
1870                 Encoding const * const enc = features.runparams().encoding;
1871                 if (enc) {
1872                         for (char_type c : strOptions) {
1873                                 if (!enc->encodable(c)) {
1874                                         docstring const glyph(1, c);
1875                                         LYXERR0("Uncodable character '"
1876                                                 << glyph
1877                                                 << "' in class options!");
1878                                         uncodable_glyphs += glyph;
1879                                         if (features.runparams().dryrun) {
1880                                                 options_encodable += "<" + _("LyX Warning: ")
1881                                                    + _("uncodable character") + " '";
1882                                                 options_encodable += c;
1883                                                 options_encodable += "'>";
1884                                         }
1885                                 } else
1886                                         options_encodable += c;
1887                         }
1888                 } else
1889                         options_encodable = strOptions;
1890
1891                 // On BUFFER_VIEW|UPDATE, warn user if we found uncodable glyphs
1892                 if (!features.runparams().dryrun && !uncodable_glyphs.empty()) {
1893                         frontend::Alert::warning(
1894                                 _("Uncodable character in class options"),
1895                                 support::bformat(
1896                                   _("The class options of your document contain glyphs "
1897                                     "that are unknown in the current document encoding "
1898                                     "(namely %1$s).\nThese glyphs are omitted "
1899                                     " from the output, which may result in "
1900                                     "incomplete output."
1901                                     "\n\nPlease select an appropriate "
1902                                     "document encoding\n"
1903                                     "(such as utf8) or change the "
1904                                     "class options accordingly."),
1905                                   uncodable_glyphs));
1906                 }
1907                 options_encodable = rtrim(options_encodable, ",");
1908                 os << '[' << options_encodable << ']';
1909         }
1910
1911         os << '{' << from_ascii(tclass.latexname()) << "}\n";
1912         // end of \documentclass defs
1913
1914         // The package options (via \PassOptionsToPackage)
1915         os << from_ascii(features.getPackageOptions());
1916
1917         // if we use fontspec or newtxmath, we have to load the AMS packages here
1918         string const ams = features.loadAMSPackages();
1919         string const main_font_enc = features.runparams().main_fontenc;
1920         bool const ot1 = (main_font_enc == "default" || main_font_enc == "OT1");
1921         bool const use_newtxmath =
1922                 theLaTeXFonts().getLaTeXFont(from_ascii(fontsMath())).getUsedPackage(
1923                         ot1, false, false) == "newtxmath";
1924         if ((useNonTeXFonts || use_newtxmath) && !ams.empty())
1925                 os << from_ascii(ams);
1926
1927         if (useNonTeXFonts) {
1928                 // Babel (as of 2017/11/03) loads fontspec itself
1929                 // However, it does so only if a non-default font is requested via \babelfont
1930                 // Thus load fontspec if this is not the case and we need fontspec features
1931                 bool const babel_needfontspec =
1932                                 !features.isAvailableAtLeastFrom("babel", 2017, 11, 3)
1933                                 || (fontsRoman() == "default"
1934                                     && fontsSans() == "default"
1935                                     && fontsTypewriter() == "default"
1936                                     // these need fontspec features
1937                                     && (features.isRequired("textquotesinglep")
1938                                         || features.isRequired("textquotedblp")));
1939                 if (!features.isProvided("fontspec")
1940                     && (!features.useBabel() || babel_needfontspec))
1941                         os << "\\usepackage{fontspec}\n";
1942                 if (features.mustProvide("unicode-math")
1943                     && features.isAvailable("unicode-math"))
1944                         os << "\\usepackage{unicode-math}\n";
1945         }
1946
1947         // load CJK support package before font selection
1948         // (see autotests/export/latex/CJK/micro-sign_utf8-cjk-libertine.lyx)
1949         if (!useNonTeXFonts && encoding().package() != Encoding::none && inputenc != "utf8x"
1950                 && (encoding().package() == Encoding::CJK || features.mustProvide("CJK"))) {
1951                 if (inputenc == "utf8-cjk" || inputenc == "utf8")
1952                         os << "\\usepackage{CJKutf8}\n";
1953                 else
1954                         os << "\\usepackage[encapsulated]{CJK}\n";
1955         }
1956
1957         // font selection must be done before loading fontenc.sty
1958         // but after babel with non-TeX fonts
1959         string const fonts = loadFonts(features);
1960         if (!fonts.empty() && (!features.useBabel() || !useNonTeXFonts))
1961                 os << from_utf8(fonts);
1962
1963         if (fonts_default_family != "default")
1964                 os << "\\renewcommand{\\familydefault}{\\"
1965                    << from_ascii(fonts_default_family) << "}\n";
1966
1967         // set font encoding
1968         // non-TeX fonts use font encoding TU (set by fontspec)
1969         if (!useNonTeXFonts && !features.isProvided("fontenc")
1970             && main_font_enc != "default") {
1971                 // get main font encodings
1972                 vector<string> fontencs = font_encodings();
1973                 // get font encodings of secondary languages
1974                 // FIXME: some languages (hebrew, ...) assume a standard font encoding as last
1975                 // option (for text in other languages).
1976                 features.getFontEncodings(fontencs);
1977                 if (!fontencs.empty()) {
1978                         os << "\\usepackage["
1979                            << from_ascii(getStringFromVector(fontencs))
1980                            << "]{fontenc}\n";
1981                 }
1982         }
1983
1984         // Load textcomp and pmboxdraw before (lua)inputenc (#11454)
1985         if (features.mustProvide("textcomp"))
1986                 os << "\\usepackage{textcomp}\n";
1987         if (features.mustProvide("pmboxdraw"))
1988                 os << "\\usepackage{pmboxdraw}\n";
1989
1990         // handle inputenc etc.
1991         // (In documents containing text in Thai language,
1992         // we must load inputenc after babel, see lib/languages).
1993         if (!contains(features.getBabelPostsettings(), from_ascii("thai.ldf")))
1994                 writeEncodingPreamble(os, features);
1995
1996         // includeonly
1997         if (!features.runparams().includeall && !included_children_.empty()) {
1998                 os << "\\includeonly{";
1999                 bool first = true;
2000                 // we do not use "auto const &" here, because incfile is modified later
2001                 // coverity[auto_causes_copy]
2002                 for (auto incfile : included_children_) {
2003                         FileName inc = makeAbsPath(incfile, filepath.absFileName());
2004                         string mangled = DocFileName(changeExtension(inc.absFileName(), ".tex")).
2005                                         mangledFileName();
2006                         if (!features.runparams().nice)
2007                                 incfile = mangled;
2008                         // \includeonly doesn't want an extension
2009                         incfile = changeExtension(incfile, string());
2010                         incfile = support::latex_path(incfile);
2011                         if (!incfile.empty()) {
2012                                 if (!first)
2013                                         os << ",";
2014                                 os << from_utf8(incfile);
2015                         }
2016                         first = false;
2017                 }
2018                 os << "}\n";
2019         }
2020
2021         if (!features.isProvided("geometry")
2022             && (use_geometry || !class_supported_papersize)) {
2023                 odocstringstream ods;
2024                 if (!getGraphicsDriver("geometry").empty())
2025                         ods << getGraphicsDriver("geometry");
2026                 if (orientation == ORIENTATION_LANDSCAPE)
2027                         ods << ",landscape";
2028                 switch (papersize) {
2029                 case PAPER_CUSTOM:
2030                         if (!paperwidth.empty())
2031                                 ods << ",paperwidth="
2032                                    << from_ascii(paperwidth);
2033                         if (!paperheight.empty())
2034                                 ods << ",paperheight="
2035                                    << from_ascii(paperheight);
2036                         break;
2037                 case PAPER_USLETTER:
2038                 case PAPER_USLEGAL:
2039                 case PAPER_USEXECUTIVE:
2040                 case PAPER_A0:
2041                 case PAPER_A1:
2042                 case PAPER_A2:
2043                 case PAPER_A3:
2044                 case PAPER_A4:
2045                 case PAPER_A5:
2046                 case PAPER_A6:
2047                 case PAPER_B0:
2048                 case PAPER_B1:
2049                 case PAPER_B2:
2050                 case PAPER_B3:
2051                 case PAPER_B4:
2052                 case PAPER_B5:
2053                 case PAPER_B6:
2054                 case PAPER_C0:
2055                 case PAPER_C1:
2056                 case PAPER_C2:
2057                 case PAPER_C3:
2058                 case PAPER_C4:
2059                 case PAPER_C5:
2060                 case PAPER_C6:
2061                 case PAPER_JISB0:
2062                 case PAPER_JISB1:
2063                 case PAPER_JISB2:
2064                 case PAPER_JISB3:
2065                 case PAPER_JISB4:
2066                 case PAPER_JISB5:
2067                 case PAPER_JISB6:
2068                         ods << "," << from_ascii(string_papersize_geometry[papersize]);
2069                         break;
2070                 case PAPER_DEFAULT:
2071                         break;
2072                 }
2073                 docstring g_options = trim(ods.str(), ",");
2074                 os << "\\usepackage";
2075                 // geometry-light means that the class works with geometry, but overwrites
2076                 // the package options and paper sizes (memoir does this).
2077                 // In this case, all options need to go to \geometry
2078                 // and the standard paper sizes need to go to the class options.
2079                 if (!g_options.empty() && !features.isProvided("geometry-light")) {
2080                         os << '[' << g_options << ']';
2081                         g_options.clear();
2082                 }
2083                 os << "{geometry}\n";
2084                 if (use_geometry || features.isProvided("geometry-light")) {
2085                         os << "\\geometry{verbose";
2086                         if (!g_options.empty())
2087                                 // Output general options here with "geometry light".
2088                                 os << "," << g_options;
2089                         // output this only if use_geometry is true
2090                         if (use_geometry) {
2091                                 if (!topmargin.empty())
2092                                         os << ",tmargin=" << from_ascii(Length(topmargin).asLatexString());
2093                                 if (!bottommargin.empty())
2094                                         os << ",bmargin=" << from_ascii(Length(bottommargin).asLatexString());
2095                                 if (!leftmargin.empty())
2096                                         os << ",lmargin=" << from_ascii(Length(leftmargin).asLatexString());
2097                                 if (!rightmargin.empty())
2098                                         os << ",rmargin=" << from_ascii(Length(rightmargin).asLatexString());
2099                                 if (!headheight.empty())
2100                                         os << ",headheight=" << from_ascii(Length(headheight).asLatexString());
2101                                 if (!headsep.empty())
2102                                         os << ",headsep=" << from_ascii(Length(headsep).asLatexString());
2103                                 if (!footskip.empty())
2104                                         os << ",footskip=" << from_ascii(Length(footskip).asLatexString());
2105                                 if (!columnsep.empty())
2106                                         os << ",columnsep=" << from_ascii(Length(columnsep).asLatexString());
2107                         }
2108                 os << "}\n";
2109                 }
2110         } else if (orientation == ORIENTATION_LANDSCAPE
2111                    || papersize != PAPER_DEFAULT) {
2112                 features.require("papersize");
2113         }
2114
2115         if (tokenPos(tclass.opt_pagestyle(), '|', pagestyle) >= 0) {
2116                 if (pagestyle == "fancy")
2117                         os << "\\usepackage{fancyhdr}\n";
2118                 os << "\\pagestyle{" << from_ascii(pagestyle) << "}\n";
2119         }
2120
2121         // only output when the background color is not default
2122         if (isbackgroundcolor) {
2123                 // only require color here, the background color will be defined
2124                 // in LaTeXFeatures.cpp to avoid interferences with the LaTeX
2125                 // package pdfpages
2126                 features.require("color");
2127                 features.require("pagecolor");
2128         }
2129
2130         // only output when the font color is not default
2131         if (isfontcolor) {
2132                 // only require color here, the font color will be defined
2133                 // in LaTeXFeatures.cpp to avoid interferences with the LaTeX
2134                 // package pdfpages
2135                 features.require("color");
2136                 features.require("fontcolor");
2137         }
2138
2139         // Only if class has a ToC hierarchy
2140         if (tclass.hasTocLevels()) {
2141                 if (secnumdepth != tclass.secnumdepth()) {
2142                         os << "\\setcounter{secnumdepth}{"
2143                            << secnumdepth
2144                            << "}\n";
2145                 }
2146                 if (tocdepth != tclass.tocdepth()) {
2147                         os << "\\setcounter{tocdepth}{"
2148                            << tocdepth
2149                            << "}\n";
2150                 }
2151         }
2152
2153         if (paragraph_separation) {
2154                 // when skip separation
2155                 string psopt;
2156                 bool default_skip = false;
2157                 switch (getDefSkip().kind()) {
2158                 case VSpace::SMALLSKIP:
2159                         psopt = "\\smallskipamount";
2160                         break;
2161                 case VSpace::MEDSKIP:
2162                         psopt = "\\medskipamount";
2163                         break;
2164                 case VSpace::BIGSKIP:
2165                         psopt = "\\bigskipamount";
2166                         break;
2167                 case VSpace::HALFLINE:
2168                         // default (no option)
2169                         default_skip = true;
2170                         break;
2171                 case VSpace::FULLLINE:
2172                         psopt = "\\baselineskip";
2173                         break;
2174                 case VSpace::LENGTH:
2175                         psopt = getDefSkip().length().asLatexString();
2176                         break;
2177                 default:
2178                         break;
2179                 }
2180                 if (features.isProvided("parskip")) {
2181                         // package already loaded (with arbitrary options)
2182                         // change parskip value only
2183                         if (!psopt.empty())
2184                                 os << "\\setlength{\\parskip}{" + psopt + "}\n";
2185                         else if (default_skip)
2186                                 // explicitly reset default (might have been changed
2187                                 // in a class or package)
2188                                 os << "\\parskip=.5\\baselineskip plus 2pt\\relax\n";
2189                 } else {
2190                         // load parskip package with required option
2191                         if (!psopt.empty())
2192                                 psopt = "[skip=" + psopt + "]";
2193                         os << "\\usepackage" + psopt + "{parskip}\n";
2194                 }
2195         } else {
2196                 // when separation by indentation
2197                 // only output something when a width is given
2198                 if (!getParIndent().empty()) {
2199                         os << "\\setlength{\\parindent}{"
2200                            << from_utf8(getParIndent().asLatexString())
2201                            << "}\n";
2202                 }
2203         }
2204
2205         if (is_math_indent) {
2206                 // when formula indentation
2207                 // only output something when it is not the default
2208                 if (!getMathIndent().empty()) {
2209                         os << "\\setlength{\\mathindent}{"
2210                            << from_utf8(getMathIndent().asString())
2211                            << "}\n";
2212                 }
2213         }
2214
2215         // Now insert the LyX specific LaTeX commands...
2216         features.resolveAlternatives();
2217         features.expandMultiples();
2218
2219         if (output_sync) {
2220                 if (!output_sync_macro.empty())
2221                         os << from_utf8(output_sync_macro) +"\n";
2222                 else if (features.runparams().flavor == Flavor::LaTeX)
2223                         os << "\\usepackage[active]{srcltx}\n";
2224                 else
2225                         os << "\\synctex=-1\n";
2226         }
2227
2228         // due to interferences with babel and hyperref, the color package has to
2229         // be loaded (when it is not already loaded) before babel when hyperref
2230         // is used with the colorlinks option, see
2231         // http://www.lyx.org/trac/ticket/5291
2232         // we decided therefore to load color always before babel, see
2233         // http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg144349.html
2234         os << from_ascii(features.getColorOptions());
2235
2236         // If we use hyperref, jurabib, japanese or varioref,
2237         // we have to call babel before
2238         if (use_babel
2239             && (features.isRequired("jurabib")
2240                 || features.isRequired("hyperref")
2241                 || features.isRequired("varioref")
2242                 || features.isRequired("japanese"))) {
2243                         os << features.getBabelPresettings();
2244                         // FIXME UNICODE
2245                         os << from_utf8(babelCall(language_options.str(),
2246                                                                           !lyxrc.language_global_options)) + '\n';
2247                         os << features.getBabelPostsettings();
2248         }
2249
2250         // The optional packages;
2251         os << from_ascii(features.getPackages());
2252
2253         // Additional Indices
2254         if (features.isRequired("splitidx")) {
2255                 for (auto const & idx : indiceslist()) {
2256                         os << "\\newindex{";
2257                         os << escape(idx.shortcut());
2258                         os << "}\n";
2259                 }
2260         }
2261
2262         // Line spacing
2263         os << from_utf8(spacing().writePreamble(features.isProvided("SetSpace")));
2264
2265         // PDF support.
2266         // * Hyperref manual: "Make sure it comes last of your loaded
2267         //   packages, to give it a fighting chance of not being over-written,
2268         //   since its job is to redefine many LaTeX commands."
2269         // * Email from Heiko Oberdiek: "It is usually better to load babel
2270         //   before hyperref. Then hyperref has a chance to detect babel.
2271         // * Has to be loaded before the "LyX specific LaTeX commands" to
2272         //   avoid errors with algorithm floats.
2273         // use hyperref explicitly if it is required
2274         if (features.isRequired("hyperref")) {
2275                 OutputParams tmp_params = features.runparams();
2276                 pdfoptions().writeLaTeX(tmp_params, os,
2277                                         features.isProvided("hyperref"));
2278                 // correctly break URLs with hyperref and dvi/ps output
2279                 if (features.runparams().hyperref_driver == "dvips"
2280                     && features.isAvailable("breakurl"))
2281                         os << "\\usepackage{breakurl}\n";
2282         } else if (features.isRequired("nameref"))
2283                 // hyperref loads this automatically
2284                 os << "\\usepackage{nameref}\n";
2285
2286         if (use_lineno){
2287                 os << "\\usepackage";
2288                 if (!lineno_opts.empty())
2289                         os << "[" << lineno_opts << "]";
2290                 os << "{lineno}\n";
2291                 os << "\\linenumbers\n";
2292         }
2293
2294         // bibtopic needs to be loaded after hyperref.
2295         // the dot provides the aux file naming which LyX can detect.
2296         if (features.mustProvide("bibtopic"))
2297                 os << "\\usepackage[dot]{bibtopic}\n";
2298
2299         // Will be surrounded by \makeatletter and \makeatother when not empty
2300         otexstringstream atlyxpreamble;
2301
2302         // Some macros LyX will need
2303         {
2304                 TexString tmppreamble = features.getMacros();
2305                 if (!tmppreamble.str.empty())
2306                         atlyxpreamble << "\n%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "
2307                                          "LyX specific LaTeX commands.\n"
2308                                       << std::move(tmppreamble)
2309                                       << '\n';
2310         }
2311         // the text class specific preamble
2312         {
2313                 docstring tmppreamble = features.getTClassPreamble();
2314                 if (!tmppreamble.empty())
2315                         atlyxpreamble << "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "
2316                                          "Textclass specific LaTeX commands.\n"
2317                                       << tmppreamble
2318                                       << '\n';
2319         }
2320         // suppress date if selected
2321         // use \@ifundefined because we cannot be sure that every document class
2322         // has a \date command
2323         if (suppress_date)
2324                 atlyxpreamble << "\\@ifundefined{date}{}{\\date{}}\n";
2325
2326         /* the user-defined preamble */
2327         if (!containsOnly(preamble, " \n\t")) {
2328                 // FIXME UNICODE
2329                 atlyxpreamble << "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "
2330                                  "User specified LaTeX commands.\n";
2331
2332                 // Check if the user preamble contains uncodable glyphs
2333                 odocstringstream user_preamble;
2334                 docstring uncodable_glyphs;
2335                 Encoding const * const enc = features.runparams().encoding;
2336                 if (enc) {
2337                         for (char_type c : preamble) {
2338                                 if (!enc->encodable(c)) {
2339                                         docstring const glyph(1, c);
2340                                         LYXERR0("Uncodable character '"
2341                                                 << glyph
2342                                                 << "' in user preamble!");
2343                                         uncodable_glyphs += glyph;
2344                                         if (features.runparams().dryrun) {
2345                                                 user_preamble << "<" << _("LyX Warning: ")
2346                                                    << _("uncodable character") << " '";
2347                                                 user_preamble.put(c);
2348                                                 user_preamble << "'>";
2349                                         }
2350                                 } else
2351                                         user_preamble.put(c);
2352                         }
2353                 } else
2354                         user_preamble << preamble;
2355
2356                 // On BUFFER_VIEW|UPDATE, warn user if we found uncodable glyphs
2357                 if (!features.runparams().dryrun && !uncodable_glyphs.empty()) {
2358                         frontend::Alert::warning(
2359                                 _("Uncodable character in user preamble"),
2360                                 support::bformat(
2361                                   _("The user preamble of your document contains glyphs "
2362                                     "that are unknown in the current document encoding "
2363                                     "(namely %1$s).\nThese glyphs are omitted "
2364                                     " from the output, which may result in "
2365                                     "incomplete output."
2366                                     "\n\nPlease select an appropriate "
2367                                     "document encoding\n"
2368                                     "(such as utf8) or change the "
2369                                     "preamble code accordingly."),
2370                                   uncodable_glyphs));
2371                 }
2372                 atlyxpreamble << user_preamble.str() << '\n';
2373         }
2374
2375         // footmisc must be loaded after setspace
2376         // Load it here to avoid clashes with footmisc loaded in the user
2377         // preamble. For that reason we also pass the options via
2378         // \PassOptionsToPackage in getPreamble() and not here.
2379         if (features.mustProvide("footmisc"))
2380                 atlyxpreamble << "\\usepackage{footmisc}\n";
2381
2382         // subfig loads internally the LaTeX package "caption". As
2383         // caption is a very popular package, users will load it in
2384         // the preamble. Therefore we must load subfig behind the
2385         // user-defined preamble and check if the caption package was
2386         // loaded or not. For the case that caption is loaded before
2387         // subfig, there is the subfig option "caption=false". This
2388         // option also works when a koma-script class is used and
2389         // koma's own caption commands are used instead of caption. We
2390         // use \PassOptionsToPackage here because the user could have
2391         // already loaded subfig in the preamble.
2392         if (features.mustProvide("subfig"))
2393                 atlyxpreamble << "\\ifdefined\\showcaptionsetup\n"
2394                                  " % Caption package is used. Advise subfig not to load it again.\n"
2395                                  " \\PassOptionsToPackage{caption=false}{subfig}\n"
2396                                  "\\fi\n"
2397                                  "\\usepackage{subfig}\n";
2398
2399         // Itemize bullet settings need to be last in case the user
2400         // defines their own bullets that use a package included
2401         // in the user-defined preamble -- ARRae
2402         // Actually it has to be done much later than that
2403         // since some packages like frenchb make modifications
2404         // at \begin{document} time -- JMarc
2405         docstring bullets_def;
2406         for (int i = 0; i < 4; ++i) {
2407                 if (user_defined_bullet(i) != ITEMIZE_DEFAULTS[i]) {
2408                         if (bullets_def.empty())
2409                                 bullets_def += "\\AtBeginDocument{\n";
2410                         bullets_def += "  \\def\\labelitemi";
2411                         switch (i) {
2412                                 // `i' is one less than the item to modify
2413                         case 0:
2414                                 break;
2415                         case 1:
2416                                 bullets_def += 'i';
2417                                 break;
2418                         case 2:
2419                                 bullets_def += "ii";
2420                                 break;
2421                         case 3:
2422                                 bullets_def += 'v';
2423                                 break;
2424                         }
2425                         bullets_def += '{' +
2426                                 user_defined_bullet(i).getText()
2427                                 + "}\n";
2428                 }
2429         }
2430
2431         if (!bullets_def.empty())
2432                 atlyxpreamble << bullets_def << "}\n\n";
2433
2434         if (!atlyxpreamble.empty())
2435                 os << "\n\\makeatletter\n"
2436                    << atlyxpreamble.release()
2437                    << "\\makeatother\n\n";
2438
2439         // We try to load babel late, in case it interferes with other packages.
2440         // Jurabib, hyperref, varioref, bicaption, menukeys and listings (bug 8995)
2441         // have to be called after babel, though.
2442         if (use_babel && !features.isRequired("jurabib")
2443             && !features.isRequired("hyperref")
2444             && !features.isRequired("varioref")
2445             && !features.isRequired("japanese")) {
2446                 os << features.getBabelPresettings();
2447                 // FIXME UNICODE
2448                 os << from_utf8(babelCall(language_options.str(),
2449                                           !lyxrc.language_global_options)) + '\n';
2450                 os << features.getBabelPostsettings();
2451         }
2452         // In documents containing text in Thai language,
2453         // we must load inputenc after babel (see lib/languages).
2454         if (contains(features.getBabelPostsettings(), from_ascii("thai.ldf")))
2455                 writeEncodingPreamble(os, features);
2456
2457         // font selection must be done after babel with non-TeX fonts
2458         if (!fonts.empty() && features.useBabel() && useNonTeXFonts)
2459                 os << from_utf8(fonts);
2460
2461         if (features.isRequired("bicaption"))
2462                 os << "\\usepackage{bicaption}\n";
2463         if (!listings_params.empty()
2464             || features.mustProvide("listings")
2465             || features.mustProvide("minted")) {
2466                 if (use_minted)
2467                         os << "\\usepackage{minted}\n";
2468                 else
2469                         os << "\\usepackage{listings}\n";
2470         }
2471         string lst_params = listings_params;
2472         // If minted, do not output the language option (bug 11203)
2473         if (use_minted && contains(lst_params, "language=")) {
2474                 vector<string> opts =
2475                         getVectorFromString(lst_params, ",", false);
2476                 for (size_t i = 0; i < opts.size(); ++i) {
2477                         if (prefixIs(opts[i], "language="))
2478                                 opts.erase(opts.begin() + i--);
2479                 }
2480                 lst_params = getStringFromVector(opts, ",");
2481         }
2482         if (!lst_params.empty()) {
2483                 if (use_minted)
2484                         os << "\\setminted{";
2485                 else
2486                         os << "\\lstset{";
2487                 // do not test validity because listings_params is
2488                 // supposed to be valid
2489                 string par =
2490                         InsetListingsParams(lst_params).separatedParams(true);
2491                 os << from_utf8(par);
2492                 os << "}\n";
2493         }
2494
2495         // xunicode only needs to be loaded if tipa is used
2496         // (the rest is obsoleted by the new TU encoding).
2497         // It needs to be loaded at least after amsmath, amssymb,
2498         // esint and the other packages that provide special glyphs
2499         if (features.mustProvide("tipa") && useNonTeXFonts
2500             && !features.isProvided("xunicode")) {
2501                 // The `xunicode` package officially only supports XeTeX,
2502                 //  but also works with LuaTeX. We work around its XeTeX test.
2503                 if (features.runparams().flavor != Flavor::XeTeX) {
2504                         os << "% Pretend to xunicode that we are XeTeX\n"
2505                            << "\\def\\XeTeXpicfile{}\n";
2506                 }
2507                 os << "\\usepackage{xunicode}\n";
2508         }
2509
2510         // covington must be loaded after beamerarticle
2511         if (features.isRequired("covington"))
2512             os << "\\usepackage{covington}\n";
2513
2514         // Polyglossia must be loaded last ...
2515         if (use_polyglossia) {
2516                 // call the package
2517                 os << "\\usepackage{polyglossia}\n";
2518                 // set the main language
2519                 os << "\\setdefaultlanguage";
2520                 if (!language->polyglossiaOpts().empty())
2521                         os << "[" << from_ascii(language->polyglossiaOpts()) << "]";
2522                 os << "{" << from_ascii(language->polyglossia()) << "}\n";
2523                 // now setup the other languages
2524                 set<string> const polylangs =
2525                         features.getPolyglossiaLanguages();
2526                 for (auto const & pl : polylangs) {
2527                         // We do not output the options here; they are output in
2528                         // the language switch commands. This is safer if multiple
2529                         // varieties are used.
2530                         if (pl == language->polyglossia())
2531                                 continue;
2532                         os << "\\setotherlanguage";
2533                         os << "{" << from_ascii(pl) << "}\n";
2534                 }
2535         }
2536
2537         // ... but before biblatex (see #7065)
2538         if ((features.mustProvide("biblatex")
2539              || features.isRequired("biblatex-chicago"))
2540             && !features.isProvided("biblatex-chicago")
2541             && !features.isProvided("biblatex-natbib")
2542             && !features.isProvided("natbib-internal")
2543             && !features.isProvided("natbib")
2544             && !features.isProvided("jurabib")) {
2545                 // The biblatex-chicago package has a differing interface
2546                 // it uses a wrapper package and loads styles via fixed options
2547                 bool const chicago = features.isRequired("biblatex-chicago");
2548                 string delim = "";
2549                 string opts;
2550                 os << "\\usepackage";
2551                 if (!biblatex_bibstyle.empty()
2552                     && (biblatex_bibstyle == biblatex_citestyle)
2553                     && !chicago) {
2554                         opts = "style=" + biblatex_bibstyle;
2555                         delim = ",";
2556                 } else if (!chicago) {
2557                         if (!biblatex_bibstyle.empty()) {
2558                                 opts = "bibstyle=" + biblatex_bibstyle;
2559                                 delim = ",";
2560                         }
2561                         if (!biblatex_citestyle.empty()) {
2562                                 opts += delim + "citestyle=" + biblatex_citestyle;
2563                                 delim = ",";
2564                         }
2565                 }
2566                 if (!multibib.empty() && multibib != "child") {
2567                         opts += delim + "refsection=" + multibib;
2568                         delim = ",";
2569                 }
2570                 if (bibtexCommand() == "bibtex8"
2571                     || prefixIs(bibtexCommand(), "bibtex8 ")) {
2572                         opts += delim + "backend=bibtex8";
2573                         delim = ",";
2574                 } else if (bibtexCommand() == "bibtex"
2575                            || prefixIs(bibtexCommand(), "bibtex ")) {
2576                         opts += delim + "backend=bibtex";
2577                         delim = ",";
2578                 }
2579                 if (!bib_encoding.empty() && encodings.fromLyXName(bib_encoding)) {
2580                         opts += delim + "bibencoding="
2581                                 + encodings.fromLyXName(bib_encoding)->latexName();
2582                         delim = ",";
2583                 }
2584                 if (!biblio_opts.empty())
2585                         opts += delim + biblio_opts;
2586                 if (!opts.empty())
2587                         os << "[" << opts << "]";
2588                 if (chicago)
2589                         os << "{biblatex-chicago}\n";
2590                 else
2591                         os << "{biblatex}\n";
2592         }
2593
2594
2595         // Load custom language package here
2596         if (features.langPackage() == LaTeXFeatures::LANG_PACK_CUSTOM) {
2597                 if (lang_package == "default")
2598                         os << from_utf8(lyxrc.language_custom_package);
2599                 else
2600                         os << from_utf8(lang_package);
2601                 os << '\n';
2602         }
2603
2604         // Since menukeys uses catoptions, which does some heavy changes on key-value options,
2605         // it is recommended to load menukeys as the last package (even after hyperref)
2606         if (features.isRequired("menukeys"))
2607                 os << "\\usepackage{menukeys}\n";
2608
2609         docstring const i18npreamble =
2610                 features.getTClassI18nPreamble(use_babel, use_polyglossia,
2611                                                use_minted);
2612         if (!i18npreamble.empty())
2613                 os << i18npreamble + '\n';
2614
2615         return use_babel;
2616 }
2617
2618
2619 void BufferParams::useClassDefaults()
2620 {
2621         DocumentClass const & tclass = documentClass();
2622
2623         sides = tclass.sides();
2624         columns = tclass.columns();
2625         pagestyle = tclass.pagestyle();
2626         tablestyle = tclass.tablestyle();
2627         use_default_options = true;
2628         // Only if class has a ToC hierarchy
2629         if (tclass.hasTocLevels()) {
2630                 secnumdepth = tclass.secnumdepth();
2631                 tocdepth = tclass.tocdepth();
2632         }
2633 }
2634
2635
2636 bool BufferParams::hasClassDefaults() const
2637 {
2638         DocumentClass const & tclass = documentClass();
2639
2640         return sides == tclass.sides()
2641                 && columns == tclass.columns()
2642                 && pagestyle == tclass.pagestyle()
2643                 && tablestyle == tclass.tablestyle()
2644                 && use_default_options
2645                 && secnumdepth == tclass.secnumdepth()
2646                 && tocdepth == tclass.tocdepth();
2647 }
2648
2649
2650 DocumentClass const & BufferParams::documentClass() const
2651 {
2652         return *doc_class_;
2653 }
2654
2655
2656 DocumentClassConstPtr BufferParams::documentClassPtr() const
2657 {
2658         return doc_class_;
2659 }
2660
2661
2662 void BufferParams::setDocumentClass(DocumentClassConstPtr tc)
2663 {
2664         // evil, but this function is evil
2665         doc_class_ = const_pointer_cast<DocumentClass>(tc);
2666         invalidateConverterCache();
2667 }
2668
2669
2670 bool BufferParams::setBaseClass(string const & classname, string const & path)
2671 {
2672         LYXERR(Debug::TCLASS, "setBaseClass: " << classname);
2673         LayoutFileList & bcl = LayoutFileList::get();
2674         if (!bcl.haveClass(classname)) {
2675                 docstring s =
2676                         bformat(_("The layout file:\n"
2677                                 "%1$s\n"
2678                                 "could not be found. A default textclass with default\n"
2679                                 "layouts will be used. LyX will not be able to produce\n"
2680                                 "correct output."),
2681                         from_utf8(classname));
2682                 frontend::Alert::error(_("Document class not found"), s);
2683                 bcl.addEmptyClass(classname);
2684         }
2685
2686         bool const success = bcl[classname].load(path);
2687         if (!success) {
2688                 docstring s =
2689                         bformat(_("Due to some error in it, the layout file:\n"
2690                                 "%1$s\n"
2691                                 "could not be loaded. A default textclass with default\n"
2692                                 "layouts will be used. LyX will not be able to produce\n"
2693                                 "correct output."),
2694                         from_utf8(classname));
2695                 frontend::Alert::error(_("Could not load class"), s);
2696                 bcl.addEmptyClass(classname);
2697         }
2698
2699         pimpl_->baseClass_ = classname;
2700         layout_modules_.adaptToBaseClass(baseClass(), removed_modules_);
2701         return true;
2702 }
2703
2704
2705 LayoutFile const * BufferParams::baseClass() const
2706 {
2707         if (LayoutFileList::get().haveClass(pimpl_->baseClass_))
2708                 return &(LayoutFileList::get()[pimpl_->baseClass_]);
2709
2710         return nullptr;
2711 }
2712
2713
2714 LayoutFileIndex const & BufferParams::baseClassID() const
2715 {
2716         return pimpl_->baseClass_;
2717 }
2718
2719
2720 void BufferParams::makeDocumentClass(bool clone, bool internal)
2721 {
2722         if (!baseClass())
2723                 return;
2724
2725         invalidateConverterCache();
2726         LayoutModuleList mods;
2727         for (auto const & mod : layout_modules_)
2728                 mods.push_back(mod);
2729
2730         doc_class_ = getDocumentClass(*baseClass(), mods, cite_engine_, clone, internal);
2731
2732         TextClass::ReturnValues success = TextClass::OK;
2733         if (!forced_local_layout_.empty())
2734                 success = doc_class_->read(to_utf8(forced_local_layout_),
2735                                            TextClass::MODULE);
2736         if (!local_layout_.empty() &&
2737             (success == TextClass::OK || success == TextClass::OK_OLDFORMAT))
2738                 success = doc_class_->read(to_utf8(local_layout_), TextClass::MODULE);
2739         if (success != TextClass::OK && success != TextClass::OK_OLDFORMAT) {
2740                 docstring const msg = _("Error reading internal layout information");
2741                 frontend::Alert::warning(_("Read Error"), msg);
2742         }
2743 }
2744
2745
2746 bool BufferParams::layoutModuleCanBeAdded(string const & modName) const
2747 {
2748         return layout_modules_.moduleCanBeAdded(modName, baseClass());
2749 }
2750
2751
2752 docstring BufferParams::getLocalLayout(bool forced) const
2753 {
2754         if (forced)
2755                 return from_utf8(doc_class_->forcedLayouts());
2756         else
2757                 return local_layout_;
2758 }
2759
2760
2761 void BufferParams::setLocalLayout(docstring const & layout, bool forced)
2762 {
2763         if (forced)
2764                 forced_local_layout_ = layout;
2765         else
2766                 local_layout_ = layout;
2767 }
2768
2769
2770 bool BufferParams::addLayoutModule(string const & modName)
2771 {
2772         for (auto const & mod : layout_modules_)
2773                 if (mod == modName)
2774                         return false;
2775         layout_modules_.push_back(modName);
2776         return true;
2777 }
2778
2779
2780 string BufferParams::bufferFormat() const
2781 {
2782         return documentClass().outputFormat();
2783 }
2784
2785
2786 bool BufferParams::isExportable(string const & format, bool need_viewable) const
2787 {
2788         FormatList const & formats = exportableFormats(need_viewable);
2789         for (auto const & fmt : formats) {
2790                 if (fmt->name() == format)
2791                         return true;
2792         }
2793         return false;
2794 }
2795
2796
2797 FormatList const & BufferParams::exportableFormats(bool only_viewable) const
2798 {
2799         FormatList & cached = only_viewable ?
2800                         pimpl_->viewableFormatList : pimpl_->exportableFormatList;
2801         bool & valid = only_viewable ?
2802                         pimpl_->isViewCacheValid : pimpl_->isExportCacheValid;
2803         if (valid)
2804                 return cached;
2805
2806         vector<string> const backs = backends();
2807         set<string> excludes;
2808         if (useNonTeXFonts) {
2809                 excludes.insert("latex");
2810                 excludes.insert("pdflatex");
2811         } else if (inputenc != "ascii" && inputenc != "utf8-plain") {
2812                   // XeTeX with TeX fonts requires input encoding ascii (#10600).
2813                   excludes.insert("xetex");
2814         }
2815
2816         FormatList result =
2817                 theConverters().getReachable(backs[0], only_viewable, true, excludes);
2818         vector<string>::const_iterator it = backs.begin() + 1;
2819         for (; it != backs.end(); ++it) {
2820                 FormatList r = theConverters().getReachable(*it, only_viewable,
2821                                                                                                         false, excludes);
2822                 result.insert(result.end(), r.begin(), r.end());
2823         }
2824         sort(result.begin(), result.end(), Format::formatSorter);
2825         cached = result;
2826         valid = true;
2827         return cached;
2828 }
2829
2830
2831 vector<string> BufferParams::backends() const
2832 {
2833         vector<string> v;
2834         string const buffmt = bufferFormat();
2835
2836         // FIXME: Don't hardcode format names here, but use a flag
2837         if (buffmt == "latex") {
2838                 if (encoding().package() == Encoding::japanese)
2839                         v.push_back("platex");
2840                 else {
2841                         if (!useNonTeXFonts) {
2842                                 v.push_back("pdflatex");
2843                                 v.push_back("latex");
2844                         }
2845                         if (useNonTeXFonts
2846                                 || inputenc == "ascii" || inputenc == "utf8-plain")
2847                                 v.push_back("xetex");
2848                         v.push_back("luatex");
2849                         v.push_back("dviluatex");
2850                 }
2851         } else {
2852                 string rbuffmt = buffmt;
2853                 // If we use an OutputFormat in Japanese docs,
2854                 // we need special format in order to get the path
2855                 // via pLaTeX (#8823)
2856                 if (documentClass().hasOutputFormat()
2857                     && encoding().package() == Encoding::japanese)
2858                         rbuffmt += "-ja";
2859                 v.push_back(rbuffmt);
2860         }
2861
2862         v.push_back("xhtml");
2863         v.push_back("docbook5");
2864         v.push_back("text");
2865         v.push_back("lyx");
2866         return v;
2867 }
2868
2869
2870 Flavor BufferParams::getOutputFlavor(string const & format) const
2871 {
2872         string const dformat = (format.empty() || format == "default") ?
2873                 getDefaultOutputFormat() : format;
2874         DefaultFlavorCache::const_iterator it =
2875                 default_flavors_.find(dformat);
2876
2877         if (it != default_flavors_.end())
2878                 return it->second;
2879
2880         Flavor result = Flavor::LaTeX;
2881
2882         // FIXME It'd be better not to hardcode this, but to do
2883         //       something with formats.
2884         if (dformat == "xhtml")
2885                 result = Flavor::Html;
2886         else if (dformat == "docbook5")
2887                 result = Flavor::DocBook5;
2888         else if (dformat == "text")
2889                 result = Flavor::Text;
2890         else if (dformat == "lyx")
2891                 result = Flavor::LyX;
2892         else if (dformat == "pdflatex")
2893                 result = Flavor::PdfLaTeX;
2894         else if (dformat == "xetex")
2895                 result = Flavor::XeTeX;
2896         else if (dformat == "luatex")
2897                 result = Flavor::LuaTeX;
2898         else if (dformat == "dviluatex")
2899                 result = Flavor::DviLuaTeX;
2900         else {
2901                 // Try to determine flavor of default output format
2902                 vector<string> backs = backends();
2903                 if (find(backs.begin(), backs.end(), dformat) == backs.end()) {
2904                         // Get shortest path to format
2905                         Graph::EdgePath path;
2906                         for (auto const & bvar : backs) {
2907                                 Graph::EdgePath p = theConverters().getPath(bvar, dformat);
2908                                 if (!p.empty() && (path.empty() || p.size() < path.size())) {
2909                                         path = p;
2910                                 }
2911                         }
2912                         if (!path.empty())
2913                                 result = theConverters().getFlavor(path);
2914                 }
2915         }
2916         // cache this flavor
2917         default_flavors_[dformat] = result;
2918         return result;
2919 }
2920
2921
2922 string BufferParams::getDefaultOutputFormat() const
2923 {
2924         if (!default_output_format.empty()
2925             && default_output_format != "default")
2926                 return default_output_format;
2927         if (encoding().package() == Encoding::japanese)
2928                 return lyxrc.default_platex_view_format;
2929         if (useNonTeXFonts)
2930                 return lyxrc.default_otf_view_format;
2931         return lyxrc.default_view_format;
2932 }
2933
2934 Font const BufferParams::getFont() const
2935 {
2936         FontInfo f = documentClass().defaultfont();
2937         if (fonts_default_family == "rmdefault")
2938                 f.setFamily(ROMAN_FAMILY);
2939         else if (fonts_default_family == "sfdefault")
2940                 f.setFamily(SANS_FAMILY);
2941         else if (fonts_default_family == "ttdefault")
2942                 f.setFamily(TYPEWRITER_FAMILY);
2943         return Font(f, language);
2944 }
2945
2946
2947 QuoteStyle BufferParams::getQuoteStyle(string const & qs) const
2948 {
2949         return quotesstyletranslator().find(qs);
2950 }
2951
2952
2953 bool BufferParams::isLatex() const
2954 {
2955         return documentClass().outputType() == LATEX;
2956 }
2957
2958
2959 bool BufferParams::isLiterate() const
2960 {
2961         return documentClass().outputType() == LITERATE;
2962 }
2963
2964
2965 bool BufferParams::hasPackageOption(string const package, string const opt) const
2966 {
2967         for (auto const & p : documentClass().packageOptions())
2968                 if (package == p.first && opt == p.second)
2969                         return true;
2970         return false;
2971 }
2972
2973
2974 bool BufferParams::useBidiPackage(OutputParams const & rp) const
2975 {
2976         return (rp.use_polyglossia
2977                 // as of babel 3.29, bidi=bidi-* is supported by babel
2978                 // So we check whether we use a respective version and
2979                 // whethert bidi-r or bidi-l have been requested either via class
2980                 // or package options
2981                 || (rp.use_babel
2982                     && LaTeXFeatures::isAvailableAtLeastFrom("babel", 2019, 4, 3)
2983                     && (hasPackageOption("babel", "bidi-r")
2984                         || hasPackageOption("babel", "bidi-l")
2985                         || contains(options, "bidi-r")
2986                         || contains(options, "bidi-l")))
2987                 )
2988                 && rp.flavor == Flavor::XeTeX;
2989 }
2990
2991
2992 void BufferParams::readPreamble(Lexer & lex)
2993 {
2994         if (lex.getString() != "\\begin_preamble")
2995                 lyxerr << "Error (BufferParams::readPreamble):"
2996                         "consistency check failed." << endl;
2997
2998         preamble = lex.getLongString(from_ascii("\\end_preamble"));
2999 }
3000
3001
3002 void BufferParams::readDocumentMetadata(Lexer & lex)
3003 {
3004         if (lex.getString() != "\\begin_metadata")
3005                 lyxerr << "Error (BufferParams::readDocumentMetadata):"
3006                         "consistency check failed." << endl;
3007
3008         document_metadata = lex.getLongString(from_ascii("\\end_metadata"));
3009 }
3010
3011
3012 void BufferParams::readLocalLayout(Lexer & lex, bool forced)
3013 {
3014         string const expected = forced ? "\\begin_forced_local_layout" :
3015                                          "\\begin_local_layout";
3016         if (lex.getString() != expected)
3017                 lyxerr << "Error (BufferParams::readLocalLayout):"
3018                         "consistency check failed." << endl;
3019
3020         if (forced)
3021                 forced_local_layout_ =
3022                         lex.getLongString(from_ascii("\\end_forced_local_layout"));
3023         else
3024                 local_layout_ = lex.getLongString(from_ascii("\\end_local_layout"));
3025 }
3026
3027
3028 bool BufferParams::setLanguage(string const & lang)
3029 {
3030         Language const *new_language = languages.getLanguage(lang);
3031         if (!new_language) {
3032                 // Language lang was not found
3033                 return false;
3034         }
3035         language = new_language;
3036         return true;
3037 }
3038
3039
3040 void BufferParams::readLanguage(Lexer & lex)
3041 {
3042         if (!lex.next()) return;
3043
3044         string const tmptok = lex.getString();
3045
3046         // check if tmptok is part of tex_babel in tex-defs.h
3047         if (!setLanguage(tmptok)) {
3048                 // Language tmptok was not found
3049                 language = default_language;
3050                 lyxerr << "Warning: Setting language `"
3051                        << tmptok << "' to `" << language->lang()
3052                        << "'." << endl;
3053         }
3054 }
3055
3056
3057 void BufferParams::readGraphicsDriver(Lexer & lex)
3058 {
3059         if (!lex.next())
3060                 return;
3061
3062         string const tmptok = lex.getString();
3063         // check if tmptok is part of tex_graphics in tex_defs.h
3064         int n = 0;
3065         while (true) {
3066                 string const test = tex_graphics[n++];
3067
3068                 if (test == tmptok) {
3069                         graphics_driver = tmptok;
3070                         break;
3071                 }
3072                 if (test.empty()) {
3073                         lex.printError(
3074                                 "Warning: graphics driver `$$Token' not recognized!\n"
3075                                 "         Setting graphics driver to `default'.\n");
3076                         graphics_driver = "default";
3077                         break;
3078                 }
3079         }
3080 }
3081
3082
3083 void BufferParams::readBullets(Lexer & lex)
3084 {
3085         if (!lex.next())
3086                 return;
3087
3088         int const index = lex.getInteger();
3089         lex.next();
3090         int temp_int = lex.getInteger();
3091         user_defined_bullet(index).setFont(temp_int);
3092         temp_bullet(index).setFont(temp_int);
3093         lex >> temp_int;
3094         user_defined_bullet(index).setCharacter(temp_int);
3095         temp_bullet(index).setCharacter(temp_int);
3096         lex >> temp_int;
3097         user_defined_bullet(index).setSize(temp_int);
3098         temp_bullet(index).setSize(temp_int);
3099 }
3100
3101
3102 void BufferParams::readBulletsLaTeX(Lexer & lex)
3103 {
3104         // The bullet class should be able to read this.
3105         if (!lex.next())
3106                 return;
3107         int const index = lex.getInteger();
3108         lex.next(true);
3109         docstring const temp_str = lex.getDocString();
3110
3111         user_defined_bullet(index).setText(temp_str);
3112         temp_bullet(index).setText(temp_str);
3113 }
3114
3115
3116 void BufferParams::readModules(Lexer & lex)
3117 {
3118         if (!lex.eatLine()) {
3119                 lyxerr << "Error (BufferParams::readModules):"
3120                                 "Unexpected end of input." << endl;
3121                 return;
3122         }
3123         while (true) {
3124                 string mod = lex.getString();
3125                 if (mod == "\\end_modules")
3126                         break;
3127                 addLayoutModule(mod);
3128                 lex.eatLine();
3129         }
3130 }
3131
3132
3133 void BufferParams::readRemovedModules(Lexer & lex)
3134 {
3135         if (!lex.eatLine()) {
3136                 lyxerr << "Error (BufferParams::readRemovedModules):"
3137                                 "Unexpected end of input." << endl;
3138                 return;
3139         }
3140         while (true) {
3141                 string mod = lex.getString();
3142                 if (mod == "\\end_removed_modules")
3143                         break;
3144                 removed_modules_.push_back(mod);
3145                 lex.eatLine();
3146         }
3147         // now we want to remove any removed modules that were previously
3148         // added. normally, that will be because default modules were added in
3149         // setBaseClass(), which gets called when \textclass is read at the
3150         // start of the read.
3151         for (auto const & rm : removed_modules_) {
3152                 LayoutModuleList::iterator const mit = layout_modules_.begin();
3153                 LayoutModuleList::iterator const men = layout_modules_.end();
3154                 LayoutModuleList::iterator found = find(mit, men, rm);
3155                 if (found == men)
3156                         continue;
3157                 layout_modules_.erase(found);
3158         }
3159 }
3160
3161
3162 void BufferParams::readIncludeonly(Lexer & lex)
3163 {
3164         if (!lex.eatLine()) {
3165                 lyxerr << "Error (BufferParams::readIncludeonly):"
3166                                 "Unexpected end of input." << endl;
3167                 return;
3168         }
3169         while (true) {
3170                 string child = lex.getString();
3171                 if (child == "\\end_includeonly")
3172                         break;
3173                 included_children_.push_back(child);
3174                 lex.eatLine();
3175         }
3176 }
3177
3178
3179 string BufferParams::paperSizeName(PapersizePurpose purpose, string const & psize) const
3180 {
3181         PAPER_SIZE ppsize = psize.empty() ? papersize : papersizetranslator().find(psize);
3182         switch (ppsize) {
3183         case PAPER_DEFAULT:
3184                 if (documentClass().pagesize() == "default")
3185                         // could be anything, so don't guess
3186                         return string();
3187                 return paperSizeName(purpose, documentClass().pagesize());
3188         case PAPER_CUSTOM: {
3189                 if (purpose == XDVI && !paperwidth.empty() &&
3190                     !paperheight.empty()) {
3191                         // heightxwidth<unit>
3192                         string first = paperwidth;
3193                         string second = paperheight;
3194                         if (orientation == ORIENTATION_LANDSCAPE)
3195                                 first.swap(second);
3196                         // cut off unit.
3197                         return first.erase(first.length() - 2)
3198                                 + "x" + second;
3199                 }
3200                 return string();
3201         }
3202         case PAPER_A0:
3203                 // dvips and dvipdfm do not know this
3204                 if (purpose == DVIPS || purpose == DVIPDFM)
3205                         return string();
3206                 return "a0";
3207         case PAPER_A1:
3208                 if (purpose == DVIPS || purpose == DVIPDFM)
3209                         return string();
3210                 return "a1";
3211         case PAPER_A2:
3212                 if (purpose == DVIPS || purpose == DVIPDFM)
3213                         return string();
3214                 return "a2";
3215         case PAPER_A3:
3216                 return "a3";
3217         case PAPER_A4:
3218                 return "a4";
3219         case PAPER_A5:
3220                 return "a5";
3221         case PAPER_A6:
3222                 if (purpose == DVIPS || purpose == DVIPDFM)
3223                         return string();
3224                 return "a6";
3225         case PAPER_B0:
3226                 if (purpose == DVIPS || purpose == DVIPDFM)
3227                         return string();
3228                 return "b0";
3229         case PAPER_B1:
3230                 if (purpose == DVIPS || purpose == DVIPDFM)
3231                         return string();
3232                 return "b1";
3233         case PAPER_B2:
3234                 if (purpose == DVIPS || purpose == DVIPDFM)
3235                         return string();
3236                 return "b2";
3237         case PAPER_B3:
3238                 if (purpose == DVIPS || purpose == DVIPDFM)
3239                         return string();
3240                 return "b3";
3241         case PAPER_B4:
3242                 // dvipdfm does not know this
3243                 if (purpose == DVIPDFM)
3244                         return string();
3245                 return "b4";
3246         case PAPER_B5:
3247                 if (purpose == DVIPDFM)
3248                         return string();
3249                 return "b5";
3250         case PAPER_B6:
3251                 if (purpose == DVIPS || purpose == DVIPDFM)
3252                         return string();
3253                 return "b6";
3254         case PAPER_C0:
3255                 if (purpose == DVIPS || purpose == DVIPDFM)
3256                         return string();
3257                 return "c0";
3258         case PAPER_C1:
3259                 if (purpose == DVIPS || purpose == DVIPDFM)
3260                         return string();
3261                 return "c1";
3262         case PAPER_C2:
3263                 if (purpose == DVIPS || purpose == DVIPDFM)
3264                         return string();
3265                 return "c2";
3266         case PAPER_C3:
3267                 if (purpose == DVIPS || purpose == DVIPDFM)
3268                         return string();
3269                 return "c3";
3270         case PAPER_C4:
3271                 if (purpose == DVIPS || purpose == DVIPDFM)
3272                         return string();
3273                 return "c4";
3274         case PAPER_C5:
3275                 if (purpose == DVIPS || purpose == DVIPDFM)
3276                         return string();
3277                 return "c5";
3278         case PAPER_C6:
3279                 if (purpose == DVIPS || purpose == DVIPDFM)
3280                         return string();
3281                 return "c6";
3282         case PAPER_JISB0:
3283                 if (purpose == DVIPS || purpose == DVIPDFM)
3284                         return string();
3285                 return "jisb0";
3286         case PAPER_JISB1:
3287                 if (purpose == DVIPS || purpose == DVIPDFM)
3288                         return string();
3289                 return "jisb1";
3290         case PAPER_JISB2:
3291                 if (purpose == DVIPS || purpose == DVIPDFM)
3292                         return string();
3293                 return "jisb2";
3294         case PAPER_JISB3:
3295                 if (purpose == DVIPS || purpose == DVIPDFM)
3296                         return string();
3297                 return "jisb3";
3298         case PAPER_JISB4:
3299                 if (purpose == DVIPS || purpose == DVIPDFM)
3300                         return string();
3301                 return "jisb4";
3302         case PAPER_JISB5:
3303                 if (purpose == DVIPS || purpose == DVIPDFM)
3304                         return string();
3305                 return "jisb5";
3306         case PAPER_JISB6:
3307                 if (purpose == DVIPS || purpose == DVIPDFM)
3308                         return string();
3309                 return "jisb6";
3310         case PAPER_USEXECUTIVE:
3311                 // dvipdfm does not know this
3312                 if (purpose == DVIPDFM)
3313                         return string();
3314                 return "foolscap";
3315         case PAPER_USLEGAL:
3316                 return "legal";
3317         case PAPER_USLETTER:
3318         default:
3319                 if (purpose == XDVI)
3320                         return "us";
3321                 return "letter";
3322         }
3323 }
3324
3325
3326 string const BufferParams::dvips_options() const
3327 {
3328         string result;
3329
3330         // If the class loads the geometry package, we do not know which
3331         // paper size is used, since we do not set it (bug 7013).
3332         // Therefore we must not specify any argument here.
3333         // dvips gets the correct paper size via DVI specials in this case
3334         // (if the class uses the geometry package correctly).
3335         if (documentClass().provides("geometry"))
3336                 return result;
3337
3338         if (use_geometry
3339             && papersize == PAPER_CUSTOM
3340             && !lyxrc.print_paper_dimension_flag.empty()
3341             && !paperwidth.empty()
3342             && !paperheight.empty()) {
3343                 // using a custom papersize
3344                 result = lyxrc.print_paper_dimension_flag;
3345                 result += ' ' + paperwidth;
3346                 result += ',' + paperheight;
3347         } else {
3348                 string const paper_option = paperSizeName(DVIPS);
3349                 if (!paper_option.empty() && (paper_option != "letter" ||
3350                     orientation != ORIENTATION_LANDSCAPE)) {
3351                         // dvips won't accept -t letter -t landscape.
3352                         // In all other cases, include the paper size
3353                         // explicitly.
3354                         result = lyxrc.print_paper_flag;
3355                         result += ' ' + paper_option;
3356                 }
3357         }
3358         if (orientation == ORIENTATION_LANDSCAPE &&
3359             papersize != PAPER_CUSTOM)
3360                 result += ' ' + lyxrc.print_landscape_flag;
3361         return result;
3362 }
3363
3364
3365 string const BufferParams::main_font_encoding() const
3366 {
3367         vector<string> const fencs = font_encodings();
3368         if (fencs.empty()) {
3369                 if (ascii_lowercase(language->fontenc(*this)) == "none")
3370                         return "none";
3371                 return "default";
3372         }
3373         return fencs.back();
3374 }
3375
3376
3377 vector<string> const BufferParams::font_encodings() const
3378 {
3379         string doc_fontenc = (fontenc == "auto") ? string() : fontenc;
3380
3381         vector<string> fontencs;
3382
3383         // "default" means "no explicit font encoding"
3384         if (doc_fontenc != "default") {
3385                 if (!doc_fontenc.empty())
3386                         // If we have a custom setting, we use only that!
3387                         return getVectorFromString(doc_fontenc);
3388                 string const lfe = language->fontenc(*this);
3389                 if (!lfe.empty()
3390                     && ascii_lowercase(language->fontenc(*this)) != "none") {
3391                         vector<string> fencs = getVectorFromString(lfe);
3392                         for (auto & fe : fencs) {
3393                                 if (find(fontencs.begin(), fontencs.end(), fe) == fontencs.end())
3394                                         fontencs.push_back(fe);
3395                         }
3396                 }
3397         }
3398
3399         return fontencs;
3400 }
3401
3402
3403 string BufferParams::babelCall(string const & lang_opts, bool const langoptions) const
3404 {
3405         // suppress the babel call if there is no BabelName defined
3406         // for the document language in the lib/languages file and if no
3407         // other languages are used (lang_opts is then empty)
3408         if (lang_opts.empty())
3409                 return string();
3410         // The prefs may require the languages to
3411         // be submitted to babel itself (not the class).
3412         if (langoptions)
3413                 return "\\usepackage[" + lang_opts + "]{babel}";
3414         return "\\usepackage{babel}";
3415 }
3416
3417
3418 docstring BufferParams::getGraphicsDriver(string const & package) const
3419 {
3420         docstring result;
3421
3422         if (package == "geometry") {
3423                 if (graphics_driver == "dvips"
3424                     || graphics_driver == "dvipdfm"
3425                     || graphics_driver == "pdftex"
3426                     || graphics_driver == "vtex")
3427                         result = from_ascii(graphics_driver);
3428                 else if (graphics_driver == "dvipdfmx")
3429                         result = from_ascii("dvipdfm");
3430         }
3431
3432         return result;
3433 }
3434
3435
3436 void BufferParams::writeEncodingPreamble(otexstream & os,
3437                                          LaTeXFeatures & features) const
3438 {
3439         // With no-TeX fonts we use utf8-plain without encoding package.
3440         if (useNonTeXFonts)
3441                 return;
3442
3443         string const doc_encoding = encoding().latexName();
3444         Encoding::Package const package = encoding().package();
3445         // (dvi)lualatex uses luainputenc rather than inputenc
3446         string const inputenc_package =
3447                 (features.runparams().flavor == Flavor::LuaTeX
3448                  || features.runparams().flavor == Flavor::DviLuaTeX)
3449                 ? "luainputenc" : "inputenc";
3450
3451         if (inputenc == "auto-legacy") {
3452                 // The "japanese" babel language requires the pLaTeX engine
3453                 // which conflicts with "inputenc".
3454                 // See http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg129680.html
3455                 if (!features.isRequired("japanese")
3456                     && !features.isProvided("inputenc")) {
3457                         if (package == Encoding::inputenc) {
3458                                 // Main language requires (lua)inputenc
3459                                 os << "\\usepackage[" << doc_encoding << "]{"
3460                                    << inputenc_package << "}\n";
3461                         } else {
3462                                 // We might have an additional language that requires inputenc
3463                                 set<string> encoding_set = features.getEncodingSet(doc_encoding);
3464                                 bool inputenc = false;
3465                                 for (auto const & enc : encoding_set) {
3466                                         if (encodings.fromLaTeXName(enc)
3467                                             && encodings.fromLaTeXName(enc)->package() == Encoding::inputenc) {
3468                                                 inputenc = true;
3469                                                 break;
3470                                         }
3471                                 }
3472                                 if (inputenc)
3473                                         // load (lua)inputenc without options
3474                                         // (the encoding is loaded later)
3475                                         os << "\\usepackage{" << inputenc_package << "}\n";
3476                         }
3477                 }
3478         } else if (inputenc != "auto-legacy-plain") {
3479                 switch (package) {
3480                 case Encoding::none:
3481                 case Encoding::CJK:
3482                 case Encoding::japanese:
3483                         if (encoding().iconvName() != "UTF-8"
3484                             && !features.runparams().isFullUnicode()
3485                             && features.isAvailableAtLeastFrom("LaTeX", 2018, 4))
3486                                 // don't default to [utf8]{inputenc} with LaTeX >= 2018/04
3487                                 os << "\\UseRawInputEncoding\n";
3488                         break;
3489                 case Encoding::inputenc:
3490                         // do not load inputenc if japanese is used
3491                         // or if the class provides inputenc
3492                         if (features.isRequired("japanese")
3493                             || features.isProvided("inputenc"))
3494                                 break;
3495                         // The 2022 release of ucs.sty uses the default utf8
3496                         // inputenc encoding with 'utf8x' inputenc if the ucs
3497                         // package is not loaded before inputenc.
3498                         // This breaks existing documents that use utf8x
3499                         // and also makes utf8x redundant.
3500                         // Thus we load ucs.sty in order to keep functionality
3501                         // that would otherwise be silently dropped.
3502                         if (doc_encoding == "utf8x"
3503                             && features.isAvailableAtLeastFrom("ucs", 2022, 8, 7)
3504                             && !features.isProvided("ucs"))
3505                                 os << "\\usepackage{ucs}\n";
3506                         os << "\\usepackage[" << doc_encoding << "]{"
3507                            << inputenc_package << "}\n";
3508                         break;
3509                 }
3510         }
3511         if ((inputenc == "auto-legacy-plain" || features.isRequired("japanese"))
3512             && features.isAvailableAtLeastFrom("LaTeX", 2018, 4))
3513                 // don't default to [utf8]{inputenc} with LaTeX >= 2018/04
3514                 os << "\\UseRawInputEncoding\n";
3515 }
3516
3517
3518 string const BufferParams::parseFontName(string const & name) const
3519 {
3520         string mangled = name;
3521         size_t const idx = mangled.find('[');
3522         if (idx == string::npos || idx == 0)
3523                 return mangled;
3524         else
3525                 return mangled.substr(0, idx - 1);
3526 }
3527
3528
3529 string const BufferParams::loadFonts(LaTeXFeatures & features) const
3530 {
3531         if (fontsRoman() == "default" && fontsSans() == "default"
3532             && fontsTypewriter() == "default"
3533             && (fontsMath() == "default" || fontsMath() == "auto"))
3534                 //nothing to do
3535                 return string();
3536
3537         ostringstream os;
3538
3539         /* Fontspec (XeTeX, LuaTeX): we provide GUI support for oldstyle
3540          * numbers (Numbers=OldStyle) and sf/tt scaling. The Ligatures=TeX/
3541          * Mapping=tex-text option assures TeX ligatures (such as "--")
3542          * are resolved. Note that tt does not use these ligatures.
3543          * TODO:
3544          *    -- add more GUI options?
3545          *    -- add more fonts (fonts for other scripts)
3546          *    -- if there's a way to find out if a font really supports
3547          *       OldStyle, enable/disable the widget accordingly.
3548         */
3549         if (useNonTeXFonts && features.isAvailable("fontspec")) {
3550                 // "Mapping=tex-text" and "Ligatures=TeX" are equivalent.
3551                 // However, until v.2 (2010/07/11) fontspec only knew
3552                 // Mapping=tex-text (for XeTeX only); then "Ligatures=TeX"
3553                 // was introduced for both XeTeX and LuaTeX (LuaTeX
3554                 // didn't understand "Mapping=tex-text", while XeTeX
3555                 // understood both. With most recent versions, both
3556                 // variants are understood by both engines. However,
3557                 // we want to provide support for at least TeXLive 2009
3558                 // (for XeTeX; LuaTeX is only supported as of v.2)
3559                 // As of 2017/11/03, Babel has its own higher-level
3560                 // interface on top of fontspec that is to be used.
3561                 bool const babelfonts = features.useBabel()
3562                                 && features.isAvailableAtLeastFrom("babel", 2017, 11, 3);
3563                 string const texmapping =
3564                         (features.runparams().flavor == Flavor::XeTeX) ?
3565                         "Mapping=tex-text" : "Ligatures=TeX";
3566                 if (fontsRoman() != "default") {
3567                         if (babelfonts)
3568                                 os << "\\babelfont{rm}[";
3569                         else
3570                                 os << "\\setmainfont[";
3571                         os << texmapping;
3572                         if (fonts_roman_osf)
3573                                 os << ",Numbers=OldStyle";
3574                         if (!font_roman_opts.empty())
3575                                 os << ',' << font_roman_opts;
3576                         os << "]{" << parseFontName(fontsRoman()) << "}\n";
3577                 }
3578                 if (fontsSans() != "default") {
3579                         string const sans = parseFontName(fontsSans());
3580                         if (fontsSansScale() != 100) {
3581                                 if (babelfonts)
3582                                         os << "\\babelfont{sf}";
3583                                 else
3584                                         os << "\\setsansfont";
3585                                 os << "[Scale="
3586                                    << float(fontsSansScale()) / 100 << ',';
3587                                 if (fonts_sans_osf)
3588                                         os << "Numbers=OldStyle,";
3589                                 os << texmapping;
3590                                 if (!font_sans_opts.empty())
3591                                         os << ',' << font_sans_opts;
3592                                 os << "]{" << sans << "}\n";
3593                         } else {
3594                                 if (babelfonts)
3595                                         os << "\\babelfont{sf}[";
3596                                 else
3597                                         os << "\\setsansfont[";
3598                                 if (fonts_sans_osf)
3599                                         os << "Numbers=OldStyle,";
3600                                 os << texmapping;
3601                                 if (!font_sans_opts.empty())
3602                                         os << ',' << font_sans_opts;
3603                                 os << "]{" << sans << "}\n";
3604                         }
3605                 }
3606                 if (fontsTypewriter() != "default") {
3607                         string const mono = parseFontName(fontsTypewriter());
3608                         if (fontsTypewriterScale() != 100) {
3609                                 if (babelfonts)
3610                                         os << "\\babelfont{tt}";
3611                                 else
3612                                         os << "\\setmonofont";
3613                                 os << "[Scale="
3614                                    << float(fontsTypewriterScale()) / 100;
3615                                 if (fonts_typewriter_osf)
3616                                         os << ",Numbers=OldStyle";
3617                                 if (!font_typewriter_opts.empty())
3618                                         os << ',' << font_typewriter_opts;
3619                                 os << "]{"
3620                                    << mono << "}\n";
3621                         } else {
3622                                 if (babelfonts)
3623                                         os << "\\babelfont{tt}";
3624                                 else
3625                                         os << "\\setmonofont";
3626                                 if (!font_typewriter_opts.empty() || fonts_typewriter_osf) {
3627                                         os << '[';
3628                                         if (fonts_typewriter_osf)
3629                                                 os << "Numbers=OldStyle";
3630                                         if (!font_typewriter_opts.empty()) {
3631                                                 if (fonts_typewriter_osf)
3632                                                         os << ',';
3633                                                 os << font_typewriter_opts;
3634                                         }
3635                                         os << ']';
3636                                 }
3637                                 os << '{' << mono << "}\n";
3638                         }
3639                 }
3640                 return os.str();
3641         }
3642
3643         // Tex Fonts
3644         bool const ot1 = (features.runparams().main_fontenc == "default"
3645                           || features.runparams().main_fontenc == "OT1");
3646         bool const dryrun = features.runparams().dryrun;
3647         bool const complete = (fontsSans() == "default" && fontsTypewriter() == "default");
3648         bool const nomath = (fontsMath() != "auto");
3649
3650         // ROMAN FONTS
3651         os << theLaTeXFonts().getLaTeXFont(from_ascii(fontsRoman())).getLaTeXCode(
3652                 dryrun, ot1, complete, fonts_expert_sc, fonts_roman_osf,
3653                 nomath, font_roman_opts);
3654
3655         // SANS SERIF
3656         os << theLaTeXFonts().getLaTeXFont(from_ascii(fontsSans())).getLaTeXCode(
3657                 dryrun, ot1, complete, fonts_expert_sc, fonts_sans_osf,
3658                 nomath, font_sans_opts, fontsSansScale());
3659
3660         // MONOSPACED/TYPEWRITER
3661         os << theLaTeXFonts().getLaTeXFont(from_ascii(fontsTypewriter())).getLaTeXCode(
3662                 dryrun, ot1, complete, fonts_expert_sc, fonts_typewriter_osf,
3663                 nomath, font_typewriter_opts, fontsTypewriterScale());
3664
3665         // MATH
3666         os << theLaTeXFonts().getLaTeXFont(from_ascii(fontsMath())).getLaTeXCode(
3667                 dryrun, ot1, complete, fonts_expert_sc, fonts_roman_osf,
3668                 nomath);
3669
3670         return os.str();
3671 }
3672
3673
3674 Encoding const & BufferParams::encoding() const
3675 {
3676         // Main encoding for LaTeX output.
3677         if (useNonTeXFonts)
3678                 return *(encodings.fromLyXName("utf8-plain"));
3679         if (inputenc == "auto-legacy" || inputenc == "auto-legacy-plain")
3680                 return *language->encoding();
3681         if (inputenc == "utf8" && language->lang() == "japanese")
3682                 return *(encodings.fromLyXName("utf8-platex"));
3683         Encoding const * const enc = encodings.fromLyXName(inputenc);
3684         if (enc)
3685                 return *enc;
3686         LYXERR0("Unknown inputenc value `" << inputenc
3687                << "'. Using `auto' instead.");
3688         return *language->encoding();
3689 }
3690
3691
3692 string const & BufferParams::defaultBiblioStyle() const
3693 {
3694         if (!biblio_style.empty())
3695                 return biblio_style;
3696
3697         map<string, string> const & bs = documentClass().defaultBiblioStyle();
3698         auto cit = bs.find(theCiteEnginesList.getTypeAsString(citeEngineType()));
3699         if (cit != bs.end())
3700                 return cit->second;
3701         else
3702                 return empty_string();
3703 }
3704
3705
3706 bool BufferParams::fullAuthorList() const
3707 {
3708         return documentClass().fullAuthorList();
3709 }
3710
3711
3712 string BufferParams::getCiteAlias(string const & s) const
3713 {
3714         vector<string> commands =
3715                 documentClass().citeCommands(citeEngineType());
3716         // If it is a real command, don't treat it as an alias
3717         if (find(commands.begin(), commands.end(), s) != commands.end())
3718                 return string();
3719         map<string,string> aliases = documentClass().citeCommandAliases();
3720         if (aliases.find(s) != aliases.end())
3721                 return aliases[s];
3722         return string();
3723 }
3724
3725
3726 vector<string> BufferParams::citeCommands() const
3727 {
3728         static CitationStyle const default_style;
3729         vector<string> commands =
3730                 documentClass().citeCommands(citeEngineType());
3731         if (commands.empty())
3732                 commands.push_back(default_style.name);
3733         return commands;
3734 }
3735
3736
3737 vector<CitationStyle> BufferParams::citeStyles() const
3738 {
3739         static CitationStyle const default_style;
3740         vector<CitationStyle> styles =
3741                 documentClass().citeStyles(citeEngineType());
3742         if (styles.empty())
3743                 styles.push_back(default_style);
3744         return styles;
3745 }
3746
3747
3748 string const BufferParams::getBibtexCommand(string const cmd, bool const warn) const
3749 {
3750         // split from options
3751         string command_in;
3752         split(cmd, command_in, ' ');
3753
3754         // Look if the requested command is available. If so, use that.
3755         for (auto const & alts : lyxrc.bibtex_alternatives) {
3756                 string command_prov;
3757                 split(alts, command_prov, ' ');
3758                 if (command_in == command_prov)
3759                         return cmd;
3760         }
3761
3762         // If not, find the most suitable fallback for the current cite framework,
3763         // and warn. Note that we omit options in any such case.
3764         string fallback;
3765         if (useBiblatex()) {
3766                 // For Biblatex, we prefer biber (also for Japanese)
3767                 // and try to fall back to bibtex8
3768                 if (lyxrc.bibtex_alternatives.find("biber") != lyxrc.bibtex_alternatives.end())
3769                         fallback = "biber";
3770                 else if (lyxrc.bibtex_alternatives.find("bibtex8") != lyxrc.bibtex_alternatives.end())
3771                         fallback = "bibtex8";
3772         }
3773         // For classic BibTeX and as last resort for biblatex, try bibtex
3774         if (fallback.empty()) {
3775                 if (lyxrc.bibtex_alternatives.find("bibtex") != lyxrc.bibtex_alternatives.end())
3776                         fallback = "bibtex";
3777         }
3778
3779         if (!warn)
3780                 return fallback;
3781
3782         if (fallback.empty()) {
3783                 frontend::Alert::warning(
3784                         _("No bibliography processor found!"),
3785                         support::bformat(
3786                           _("The bibliography processor requested by this document "
3787                             "(%1$s) is not available and no appropriate "
3788                             "alternative has been found. "
3789                             "No bibliography and references will be generated.\n"
3790                             "Please fix your installation!"),
3791                           from_utf8(cmd)));
3792         } else {
3793                 frontend::Alert::warning(
3794                         _("Requested bibliography processor not found!"),
3795                         support::bformat(
3796                           _("The bibliography processor requested by this document "
3797                             "(%1$s) is not available. "
3798                             "As a fallback, '%2$s' will be used, options are omitted. "
3799                             "This might result in errors or unwanted changes in "
3800                             "the bibliography. Please check carefully!\n"
3801                             "It is suggested to install the missing processor."),
3802                           from_utf8(cmd), from_utf8(fallback)));
3803         }
3804         return fallback;
3805 }
3806
3807
3808 string const BufferParams::bibtexCommand(bool const warn) const
3809 {
3810         // Return document-specific setting if available
3811         if (bibtex_command != "default")
3812                 return getBibtexCommand(bibtex_command, warn);
3813
3814         // If we have "default" in document settings, consult the prefs
3815         // 1. Japanese (uses a specific processor)
3816         if (encoding().package() == Encoding::japanese) {
3817                 if (lyxrc.jbibtex_command != "automatic")
3818                         // Return the specified program, if "automatic" is not set
3819                         return lyxrc.jbibtex_command;
3820                 else if (!useBiblatex()) {
3821                         // With classic BibTeX, return pbibtex, jbibtex, bibtex
3822                         if (lyxrc.jbibtex_alternatives.find("pbibtex") != lyxrc.jbibtex_alternatives.end())
3823                                 return "pbibtex";
3824                         if (lyxrc.jbibtex_alternatives.find("jbibtex") != lyxrc.jbibtex_alternatives.end())
3825                                 return "jbibtex";
3826                         return "bibtex";
3827                 }
3828         }
3829         // 2. All other languages
3830         else if (lyxrc.bibtex_command != "automatic")
3831                 // Return the specified program, if "automatic" is not set
3832                 return getBibtexCommand(lyxrc.bibtex_command, warn);
3833
3834         // 3. Automatic: find the most suitable for the current cite framework
3835         if (useBiblatex()) {
3836                 // For Biblatex, we prefer biber (also for Japanese)
3837                 // and fall back to bibtex8 and, as last resort, bibtex
3838                 if (lyxrc.bibtex_alternatives.find("biber") != lyxrc.bibtex_alternatives.end())
3839                         return "biber";
3840                 else if (lyxrc.bibtex_alternatives.find("bibtex8") != lyxrc.bibtex_alternatives.end())
3841                         return "bibtex8";
3842         }
3843         return "bibtex";
3844 }
3845
3846
3847 bool BufferParams::useBiblatex() const
3848 {
3849         return theCiteEnginesList[citeEngine()]->getCiteFramework() == "biblatex";
3850 }
3851
3852
3853 void BufferParams::invalidateConverterCache() const
3854 {
3855         pimpl_->isExportCacheValid = false;
3856         pimpl_->isViewCacheValid = false;
3857 }
3858
3859
3860 // We shouldn't need to reset the params here, since anything
3861 // we need will be recopied.
3862 void BufferParams::copyForAdvFR(const BufferParams & bp)
3863 {
3864         string const & lang = bp.language->lang();
3865         setLanguage(lang);
3866         quotes_style = bp.quotes_style;
3867         layout_modules_ = bp.layout_modules_;
3868         string const & doc_class = bp.documentClass().name();
3869         setBaseClass(doc_class);
3870 }
3871
3872
3873 void BufferParams::setBibFileEncoding(string const & file, string const & enc)
3874 {
3875         bib_encodings[file] = enc;
3876 }
3877
3878
3879 string const BufferParams::bibFileEncoding(string const & file) const
3880 {
3881         if (bib_encodings.find(file) == bib_encodings.end())
3882                 return string();
3883         return bib_encodings.find(file)->second;
3884 }
3885
3886
3887 BufferParams const & defaultBufferParams()
3888 {
3889         static BufferParams default_params;
3890         return default_params;
3891 }
3892
3893
3894 } // namespace lyx