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 "buffer_funcs.h"
  25 #include "Bullet.h"
  26 #include "Color.h"
  27 #include "ColorSet.h"
  28 #include "Converter.h"
  29 #include "Encoding.h"
  30 #include "HSpace.h"
  31 #include "IndicesList.h"
  32 #include "Language.h"
  33 #include "LaTeXFeatures.h"
  34 #include "LaTeXFonts.h"
  35 #include "ModuleList.h"
  36 #include "Font.h"
  37 #include "Lexer.h"
  38 #include "LyXRC.h"
  39 #include "OutputParams.h"
  40 #include "Spacing.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
  49 #include "support/convert.h"
  50 #include "support/debug.h"
  51 #include "support/docstream.h"
  52 #include "support/FileName.h"
  53 #include "support/filetools.h"
  54 #include "support/gettext.h"
  55 #include "support/Messages.h"
  56 #include "support/mutex.h"
  57 #include "support/Package.h"
  58 #include "support/Translator.h"
  59 #include "support/lstrings.h"
  60
  61 #include <algorithm>
  62 #include <sstream>
  63
  64 using namespace std;
  65 using namespace lyx::support;
  66
  67
  68 static char const * const string_paragraph_separation[] = {
  69         "indent", "skip", ""
  70 };
  71
  72
  73 static char const * const string_quotes_language[] = {
  74         "english", "swedish", "german", "polish", "french", "danish", ""
  75 };
  76
  77
  78 static char const * const string_papersize[] = {
  79         "default", "custom", "letterpaper", "legalpaper", "executivepaper",
  80         "a0paper", "a1paper", "a2paper", "a3paper",     "a4paper", "a5paper",
  81         "a6paper", "b0paper", "b1paper", "b2paper","b3paper", "b4paper",
  82         "b5paper", "b6paper", "c0paper", "c1paper", "c2paper", "c3paper",
  83         "c4paper", "c5paper", "c6paper", "b0j", "b1j", "b2j", "b3j", "b4j", "b5j",
  84         "b6j", ""
  85 };
  86
  87
  88 static char const * const string_orientation[] = {
  89         "portrait", "landscape", ""
  90 };
  91
  92
  93 static char const * const tex_graphics[] = {
  94         "default", "dvialw", "dvilaser", "dvipdf", "dvipdfm", "dvipdfmx",
  95         "dvips", "dvipsone", "dvitops", "dviwin", "dviwindo", "dvi2ps", "emtex",
  96         "ln", "oztex", "pctexhp", "pctexps", "pctexwin", "pctex32", "pdftex",
  97         "psprint", "pubps", "tcidvi", "textures", "truetex", "vtex", "xdvi",
  98         "xetex", "none", ""
  99 };
 100
 101
 102
 103 namespace lyx {
 104
 105 // Local translators
 106 namespace {
 107
 108 // Paragraph separation
 109 typedef Translator<string, BufferParams::ParagraphSeparation> ParSepTranslator;
 110
 111
 112 ParSepTranslator const init_parseptranslator()
 113 {
 114         ParSepTranslator translator
 115                 (string_paragraph_separation[0], BufferParams::ParagraphIndentSeparation);
 116         translator.addPair(string_paragraph_separation[1], BufferParams::ParagraphSkipSeparation);
 117         return translator;
 118 }
 119
 120
 121 ParSepTranslator const & parseptranslator()
 122 {
 123         static ParSepTranslator const translator =
 124                 init_parseptranslator();
 125         return translator;
 126 }
 127
 128
 129 // Quotes language
 130 typedef Translator<string, InsetQuotes::QuoteLanguage> QuotesLangTranslator;
 131
 132
 133 QuotesLangTranslator const init_quoteslangtranslator()
 134 {
 135         QuotesLangTranslator translator
 136                 (string_quotes_language[0], InsetQuotes::EnglishQuotes);
 137         translator.addPair(string_quotes_language[1], InsetQuotes::SwedishQuotes);
 138         translator.addPair(string_quotes_language[2], InsetQuotes::GermanQuotes);
 139         translator.addPair(string_quotes_language[3], InsetQuotes::PolishQuotes);
 140         translator.addPair(string_quotes_language[4], InsetQuotes::FrenchQuotes);
 141         translator.addPair(string_quotes_language[5], InsetQuotes::DanishQuotes);
 142         return translator;
 143 }
 144
 145
 146 QuotesLangTranslator const & quoteslangtranslator()
 147 {
 148         static QuotesLangTranslator const translator =
 149                 init_quoteslangtranslator();
 150         return translator;
 151 }
 152
 153
 154 // Paper size
 155 typedef Translator<string, PAPER_SIZE> PaperSizeTranslator;
 156
 157
 158 static PaperSizeTranslator initPaperSizeTranslator()
 159 {
 160         PaperSizeTranslator translator(string_papersize[0], PAPER_DEFAULT);
 161         translator.addPair(string_papersize[1], PAPER_CUSTOM);
 162         translator.addPair(string_papersize[2], PAPER_USLETTER);
 163         translator.addPair(string_papersize[3], PAPER_USLEGAL);
 164         translator.addPair(string_papersize[4], PAPER_USEXECUTIVE);
 165         translator.addPair(string_papersize[5], PAPER_A0);
 166         translator.addPair(string_papersize[6], PAPER_A1);
 167         translator.addPair(string_papersize[7], PAPER_A2);
 168         translator.addPair(string_papersize[8], PAPER_A3);
 169         translator.addPair(string_papersize[9], PAPER_A4);
 170         translator.addPair(string_papersize[10], PAPER_A5);
 171         translator.addPair(string_papersize[11], PAPER_A6);
 172         translator.addPair(string_papersize[12], PAPER_B0);
 173         translator.addPair(string_papersize[13], PAPER_B1);
 174         translator.addPair(string_papersize[14], PAPER_B2);
 175         translator.addPair(string_papersize[15], PAPER_B3);
 176         translator.addPair(string_papersize[16], PAPER_B4);
 177         translator.addPair(string_papersize[17], PAPER_B5);
 178         translator.addPair(string_papersize[18], PAPER_B6);
 179         translator.addPair(string_papersize[19], PAPER_C0);
 180         translator.addPair(string_papersize[20], PAPER_C1);
 181         translator.addPair(string_papersize[21], PAPER_C2);
 182         translator.addPair(string_papersize[22], PAPER_C3);
 183         translator.addPair(string_papersize[23], PAPER_C4);
 184         translator.addPair(string_papersize[24], PAPER_C5);
 185         translator.addPair(string_papersize[25], PAPER_C6);
 186         translator.addPair(string_papersize[26], PAPER_JISB0);
 187         translator.addPair(string_papersize[27], PAPER_JISB1);
 188         translator.addPair(string_papersize[28], PAPER_JISB2);
 189         translator.addPair(string_papersize[29], PAPER_JISB3);
 190         translator.addPair(string_papersize[30], PAPER_JISB4);
 191         translator.addPair(string_papersize[31], PAPER_JISB5);
 192         translator.addPair(string_papersize[32], PAPER_JISB6);
 193         return translator;
 194 }
 195
 196
 197 PaperSizeTranslator const & papersizetranslator()
 198 {
 199         static PaperSizeTranslator const translator =
 200                 initPaperSizeTranslator();
 201         return translator;
 202 }
 203
 204
 205 // Paper orientation
 206 typedef Translator<string, PAPER_ORIENTATION> PaperOrientationTranslator;
 207
 208
 209 PaperOrientationTranslator const init_paperorientationtranslator()
 210 {
 211         PaperOrientationTranslator translator(string_orientation[0], ORIENTATION_PORTRAIT);
 212         translator.addPair(string_orientation[1], ORIENTATION_LANDSCAPE);
 213         return translator;
 214 }
 215
 216
 217 PaperOrientationTranslator const & paperorientationtranslator()
 218 {
 219         static PaperOrientationTranslator const translator =
 220             init_paperorientationtranslator();
 221         return translator;
 222 }
 223
 224
 225 // Page sides
 226 typedef Translator<int, PageSides> SidesTranslator;
 227
 228
 229 SidesTranslator const init_sidestranslator()
 230 {
 231         SidesTranslator translator(1, OneSide);
 232         translator.addPair(2, TwoSides);
 233         return translator;
 234 }
 235
 236
 237 SidesTranslator const & sidestranslator()
 238 {
 239         static SidesTranslator const translator = init_sidestranslator();
 240         return translator;
 241 }
 242
 243
 244 // LaTeX packages
 245 typedef Translator<int, BufferParams::Package> PackageTranslator;
 246
 247
 248 PackageTranslator const init_packagetranslator()
 249 {
 250         PackageTranslator translator(0, BufferParams::package_off);
 251         translator.addPair(1, BufferParams::package_auto);
 252         translator.addPair(2, BufferParams::package_on);
 253         return translator;
 254 }
 255
 256
 257 PackageTranslator const & packagetranslator()
 258 {
 259         static PackageTranslator const translator =
 260                 init_packagetranslator();
 261         return translator;
 262 }
 263
 264
 265 // Cite engine
 266 typedef Translator<string, CiteEngineType> CiteEngineTypeTranslator;
 267
 268
 269 CiteEngineTypeTranslator const init_citeenginetypetranslator()
 270 {
 271         CiteEngineTypeTranslator translator("authoryear", ENGINE_TYPE_AUTHORYEAR);
 272         translator.addPair("numerical", ENGINE_TYPE_NUMERICAL);
 273         translator.addPair("default", ENGINE_TYPE_DEFAULT);
 274         return translator;
 275 }
 276
 277
 278 CiteEngineTypeTranslator const & citeenginetypetranslator()
 279 {
 280         static CiteEngineTypeTranslator const translator =
 281                 init_citeenginetypetranslator();
 282         return translator;
 283 }
 284
 285
 286 // Spacing
 287 typedef Translator<string, Spacing::Space> SpaceTranslator;
 288
 289
 290 SpaceTranslator const init_spacetranslator()
 291 {
 292         SpaceTranslator translator("default", Spacing::Default);
 293         translator.addPair("single", Spacing::Single);
 294         translator.addPair("onehalf", Spacing::Onehalf);
 295         translator.addPair("double", Spacing::Double);
 296         translator.addPair("other", Spacing::Other);
 297         return translator;
 298 }
 299
 300
 301 SpaceTranslator const & spacetranslator()
 302 {
 303         static SpaceTranslator const translator = init_spacetranslator();
 304         return translator;
 305 }
 306
 307 } // anon namespace
 308
 309
 310 class BufferParams::Impl
 311 {
 312 public:
 313         Impl();
 314
 315         AuthorList authorlist;
 316         BranchList branchlist;
 317         Bullet temp_bullets[4];
 318         Bullet user_defined_bullets[4];
 319         IndicesList indiceslist;
 320         Spacing spacing;
 321         /** This is the amount of space used for paragraph_separation "skip",
 322          * and for detached paragraphs in "indented" documents.
 323          */
 324         HSpace indentation;
 325         VSpace defskip;
 326         PDFOptions pdfoptions;
 327         LayoutFileIndex baseClass_;
 328 };
 329
 330
 331 BufferParams::Impl::Impl()
 332         : defskip(VSpace::MEDSKIP), baseClass_(string(""))
 333 {
 334         // set initial author
 335         // FIXME UNICODE
 336         authorlist.record(Author(from_utf8(lyxrc.user_name), from_utf8(lyxrc.user_email)));
 337 }
 338
 339
 340 BufferParams::Impl *
 341 BufferParams::MemoryTraits::clone(BufferParams::Impl const * ptr)
 342 {
 343         LBUFERR(ptr);
 344         return new BufferParams::Impl(*ptr);
 345 }
 346
 347
 348 void BufferParams::MemoryTraits::destroy(BufferParams::Impl * ptr)
 349 {
 350         delete ptr;
 351 }
 352
 353
 354 BufferParams::BufferParams()
 355         : pimpl_(new Impl)
 356 {
 357         setBaseClass(defaultBaseclass());
 358         cite_engine_.push_back("basic");
 359         cite_engine_type_ = ENGINE_TYPE_DEFAULT;
 360         makeDocumentClass();
 361         paragraph_separation = ParagraphIndentSeparation;
 362         quotes_language = InsetQuotes::EnglishQuotes;
 363         fontsize = "default";
 364
 365         /*  PaperLayout */
 366         papersize = PAPER_DEFAULT;
 367         orientation = ORIENTATION_PORTRAIT;
 368         use_geometry = false;
 369         biblio_style = "plain";
 370         use_bibtopic = false;
 371         use_indices = false;
 372         track_changes = false;
 373         output_changes = false;
 374         use_default_options = true;
 375         maintain_unincluded_children = false;
 376         secnumdepth = 3;
 377         tocdepth = 3;
 378         language = default_language;
 379         fontenc = "global";
 380         fonts_roman[0] = "default";
 381         fonts_roman[1] = "default";
 382         fonts_sans[0] = "default";
 383         fonts_sans[1] = "default";
 384         fonts_typewriter[0] = "default";
 385         fonts_typewriter[1] = "default";
 386         fonts_math[0] = "auto";
 387         fonts_math[1] = "auto";
 388         fonts_default_family = "default";
 389         useNonTeXFonts = false;
 390         fonts_expert_sc = false;
 391         fonts_old_figures = false;
 392         fonts_sans_scale[0] = 100;
 393         fonts_sans_scale[1] = 100;
 394         fonts_typewriter_scale[0] = 100;
 395         fonts_typewriter_scale[1] = 100;
 396         inputenc = "auto";
 397         lang_package = "default";
 398         graphics_driver = "default";
 399         default_output_format = "default";
 400         bibtex_command = "default";
 401         index_command = "default";
 402         sides = OneSide;
 403         columns = 1;
 404         listings_params = string();
 405         pagestyle = "default";
 406         suppress_date = false;
 407         justification = true;
 408         // no color is the default (white)
 409         backgroundcolor = lyx::rgbFromHexName("#ffffff");
 410         isbackgroundcolor = false;
 411         // no color is the default (black)
 412         fontcolor = lyx::rgbFromHexName("#000000");
 413         isfontcolor = false;
 414         // light gray is the default font color for greyed-out notes
 415         notefontcolor = lyx::rgbFromHexName("#cccccc");
 416         boxbgcolor = lyx::rgbFromHexName("#ff0000");
 417         compressed = lyxrc.save_compressed;
 418         for (int iter = 0; iter < 4; ++iter) {
 419                 user_defined_bullet(iter) = ITEMIZE_DEFAULTS[iter];
 420                 temp_bullet(iter) = ITEMIZE_DEFAULTS[iter];
 421         }
 422         // default index
 423         indiceslist().addDefault(B_("Index"));
 424         html_be_strict = false;
 425         html_math_output = MathML;
 426         html_math_img_scale = 1.0;
 427         html_css_as_file = false;
 428         display_pixel_ratio = 1.0;
 429
 430         output_sync = false;
 431         use_refstyle = true;
 432
 433         // map current author
 434         author_map_[pimpl_->authorlist.get(0).bufferId()] = 0;
 435 }
 436
 437
 438 docstring BufferParams::B_(string const & l10n) const
 439 {
 440         LASSERT(language, return from_utf8(l10n));
 441         return getMessages(language->code()).get(l10n);
 442 }
 443
 444
 445 BufferParams::Package BufferParams::use_package(std::string const & p) const
 446 {
 447         PackageMap::const_iterator it = use_packages.find(p);
 448         if (it == use_packages.end())
 449                 return package_auto;
 450         return it->second;
 451 }
 452
 453
 454 void BufferParams::use_package(std::string const & p, BufferParams::Package u)
 455 {
 456         use_packages[p] = u;
 457 }
 458
 459
 460 map<string, string> const & BufferParams::auto_packages()
 461 {
 462         static map<string, string> packages;
 463         if (packages.empty()) {
 464                 // We could have a race condition here that two threads
 465                 // discover an empty map at the same time and want to fill
 466                 // it, but that is no problem, since the same contents is
 467                 // filled in twice then. Having the locker inside the
 468                 // packages.empty() condition has the advantage that we
 469                 // don't need the mutex overhead for simple reading.
 470                 static Mutex mutex;
 471                 Mutex::Locker locker(&mutex);
 472                 // adding a package here implies a file format change!
 473                 packages["amsmath"] =
 474                         N_("The LaTeX package amsmath is only used if AMS formula types or symbols from the AMS math toolbars are inserted into formulas");
 475                 packages["amssymb"] =
 476                         N_("The LaTeX package amssymb is only used if symbols from the AMS math toolbars are inserted into formulas");
 477                 packages["cancel"] =
 478                         N_("The LaTeX package cancel is only used if \\cancel commands are used in formulas");
 479                 packages["esint"] =
 480                         N_("The LaTeX package esint is only used if special integral symbols are inserted into formulas");
 481                 packages["mathdots"] =
 482                         N_("The LaTeX package mathdots is only used if the command \\iddots is inserted into formulas");
 483                 packages["mathtools"] =
 484                         N_("The LaTeX package mathtools is only used if some mathematical relations are inserted into formulas");
 485                 packages["mhchem"] =
 486                         N_("The LaTeX package mhchem is only used if either the command \\ce or \\cf is inserted into formulas");
 487                 packages["stackrel"] =
 488                         N_("The LaTeX package stackrel is only used if the command \\stackrel with subscript is inserted into formulas");
 489                 packages["stmaryrd"] =
 490                         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");
 491                 packages["undertilde"] =
 492                         N_("The LaTeX package undertilde is only used if you use the math frame decoration 'utilde'");
 493         }
 494         return packages;
 495 }
 496
 497
 498 AuthorList & BufferParams::authors()
 499 {
 500         return pimpl_->authorlist;
 501 }
 502
 503
 504 AuthorList const & BufferParams::authors() const
 505 {
 506         return pimpl_->authorlist;
 507 }
 508
 509
 510 void BufferParams::addAuthor(Author a)
 511 {
 512         author_map_[a.bufferId()] = pimpl_->authorlist.record(a);
 513 }
 514
 515
 516 BranchList & BufferParams::branchlist()
 517 {
 518         return pimpl_->branchlist;
 519 }
 520
 521
 522 BranchList const & BufferParams::branchlist() const
 523 {
 524         return pimpl_->branchlist;
 525 }
 526
 527
 528 IndicesList & BufferParams::indiceslist()
 529 {
 530         return pimpl_->indiceslist;
 531 }
 532
 533
 534 IndicesList const & BufferParams::indiceslist() const
 535 {
 536         return pimpl_->indiceslist;
 537 }
 538
 539
 540 Bullet & BufferParams::temp_bullet(lyx::size_type const index)
 541 {
 542         LASSERT(index < 4, return pimpl_->temp_bullets[0]);
 543         return pimpl_->temp_bullets[index];
 544 }
 545
 546
 547 Bullet const & BufferParams::temp_bullet(lyx::size_type const index) const
 548 {
 549         LASSERT(index < 4, return pimpl_->temp_bullets[0]);
 550         return pimpl_->temp_bullets[index];
 551 }
 552
 553
 554 Bullet & BufferParams::user_defined_bullet(lyx::size_type const index)
 555 {
 556         LASSERT(index < 4, return pimpl_->temp_bullets[0]);
 557         return pimpl_->user_defined_bullets[index];
 558 }
 559
 560
 561 Bullet const & BufferParams::user_defined_bullet(lyx::size_type const index) const
 562 {
 563         LASSERT(index < 4, return pimpl_->temp_bullets[0]);
 564         return pimpl_->user_defined_bullets[index];
 565 }
 566
 567
 568 Spacing & BufferParams::spacing()
 569 {
 570         return pimpl_->spacing;
 571 }
 572
 573
 574 Spacing const & BufferParams::spacing() const
 575 {
 576         return pimpl_->spacing;
 577 }
 578
 579
 580 PDFOptions & BufferParams::pdfoptions()
 581 {
 582         return pimpl_->pdfoptions;
 583 }
 584
 585
 586 PDFOptions const & BufferParams::pdfoptions() const
 587 {
 588         return pimpl_->pdfoptions;
 589 }
 590
 591
 592 HSpace const & BufferParams::getIndentation() const
 593 {
 594         return pimpl_->indentation;
 595 }
 596
 597
 598 void BufferParams::setIndentation(HSpace const & indent)
 599 {
 600         pimpl_->indentation = indent;
 601 }
 602
 603
 604 VSpace const & BufferParams::getDefSkip() const
 605 {
 606         return pimpl_->defskip;
 607 }
 608
 609
 610 void BufferParams::setDefSkip(VSpace const & vs)
 611 {
 612         // DEFSKIP will cause an infinite loop
 613         LASSERT(vs.kind() != VSpace::DEFSKIP, return);
 614         pimpl_->defskip = vs;
 615 }
 616
 617
 618 string BufferParams::readToken(Lexer & lex, string const & token,
 619         FileName const & filepath)
 620 {
 621         string result;
 622
 623         if (token == "\\textclass") {
 624                 lex.next();
 625                 string const classname = lex.getString();
 626                 // if there exists a local layout file, ignore the system one
 627                 // NOTE: in this case, the textclass (.cls file) is assumed to
 628                 // be available.
 629                 string tcp;
 630                 LayoutFileList & bcl = LayoutFileList::get();
 631                 if (!filepath.empty()) {
 632                         // If classname is an absolute path, the document is
 633                         // using a local layout file which could not be accessed
 634                         // by a relative path. In this case the path is correct
 635                         // even if the document was moved to a different
 636                         // location. However, we will have a problem if the
 637                         // document was generated on a different platform.
 638                         bool isabsolute = FileName::isAbsolute(classname);
 639                         string const classpath = onlyPath(classname);
 640                         string const path = isabsolute ? classpath
 641                                 : FileName(addPath(filepath.absFileName(),
 642                                                 classpath)).realPath();
 643                         string const oldpath = isabsolute ? string()
 644                                 : FileName(addPath(origin, classpath)).realPath();
 645                         tcp = bcl.addLocalLayout(onlyFileName(classname), path, oldpath);
 646                 }
 647                 // that returns non-empty if a "local" layout file is found.
 648                 if (!tcp.empty()) {
 649                         result = to_utf8(makeRelPath(from_utf8(onlyPath(tcp)),
 650                                                 from_utf8(filepath.absFileName())));
 651                         if (result.empty())
 652                                 result = ".";
 653                         setBaseClass(onlyFileName(tcp));
 654                 } else
 655                         setBaseClass(onlyFileName(classname));
 656                 // We assume that a tex class exists for local or unknown
 657                 // layouts so this warning, will only be given for system layouts.
 658                 if (!baseClass()->isTeXClassAvailable()) {
 659                         docstring const desc =
 660                                 translateIfPossible(from_utf8(baseClass()->description()));
 661                         docstring const prereqs =
 662                                 from_utf8(baseClass()->prerequisites());
 663                         docstring const msg =
 664                                 bformat(_("The selected document class\n"
 665                                                  "\t%1$s\n"
 666                                                  "requires external files that are not available.\n"
 667                                                  "The document class can still be used, but the\n"
 668                                                  "document cannot be compiled until the following\n"
 669                                                  "prerequisites are installed:\n"
 670                                                  "\t%2$s\n"
 671                                                  "See section 3.1.2.2 (Class Availability) of the\n"
 672                                                  "User's Guide for more information."), desc, prereqs);
 673                         frontend::Alert::warning(_("Document class not available"),
 674                                        msg, true);
 675                 }
 676         } else if (token == "\\origin") {
 677                 lex.eatLine();
 678                 origin = lex.getString();
 679                 string const sysdirprefix = "/systemlyxdir/";
 680                 if (prefixIs(origin, sysdirprefix)) {
 681                         origin.replace(0, sysdirprefix.length() - 1,
 682                                 package().system_support().absFileName());
 683                 }
 684         } else if (token == "\\begin_preamble") {
 685                 readPreamble(lex);
 686         } else if (token == "\\begin_local_layout") {
 687                 readLocalLayout(lex, false);
 688         } else if (token == "\\begin_forced_local_layout") {
 689                 readLocalLayout(lex, true);
 690         } else if (token == "\\begin_modules") {
 691                 readModules(lex);
 692         } else if (token == "\\begin_removed_modules") {
 693                 readRemovedModules(lex);
 694         } else if (token == "\\begin_includeonly") {
 695                 readIncludeonly(lex);
 696         } else if (token == "\\maintain_unincluded_children") {
 697                 lex >> maintain_unincluded_children;
 698         } else if (token == "\\options") {
 699                 lex.eatLine();
 700                 options = lex.getString();
 701         } else if (token == "\\use_default_options") {
 702                 lex >> use_default_options;
 703         } else if (token == "\\master") {
 704                 lex.eatLine();
 705                 master = lex.getString();
 706                 if (!filepath.empty() && FileName::isAbsolute(origin)) {
 707                         bool const isabs = FileName::isAbsolute(master);
 708                         FileName const abspath(isabs ? master : origin + master);
 709                         bool const moved = filepath != FileName(origin);
 710                         if (moved && abspath.exists()) {
 711                                 docstring const path = isabs
 712                                         ? from_utf8(master)
 713                                         : from_utf8(abspath.realPath());
 714                                 docstring const refpath =
 715                                         from_utf8(filepath.absFileName());
 716                                 master = to_utf8(makeRelPath(path, refpath));
 717                         }
 718                 }
 719         } else if (token == "\\suppress_date") {
 720                 lex >> suppress_date;
 721         } else if (token == "\\justification") {
 722                 lex >> justification;
 723         } else if (token == "\\language") {
 724                 readLanguage(lex);
 725         } else if (token == "\\language_package") {
 726                 lex.eatLine();
 727                 lang_package = lex.getString();
 728         } else if (token == "\\inputencoding") {
 729                 lex >> inputenc;
 730         } else if (token == "\\graphics") {
 731                 readGraphicsDriver(lex);
 732         } else if (token == "\\default_output_format") {
 733                 lex >> default_output_format;
 734         } else if (token == "\\bibtex_command") {
 735                 lex.eatLine();
 736                 bibtex_command = lex.getString();
 737         } else if (token == "\\index_command") {
 738                 lex.eatLine();
 739                 index_command = lex.getString();
 740         } else if (token == "\\fontencoding") {
 741                 lex.eatLine();
 742                 fontenc = lex.getString();
 743         } else if (token == "\\font_roman") {
 744                 lex >> fonts_roman[0];
 745                 lex >> fonts_roman[1];
 746         } else if (token == "\\font_sans") {
 747                 lex >> fonts_sans[0];
 748                 lex >> fonts_sans[1];
 749         } else if (token == "\\font_typewriter") {
 750                 lex >> fonts_typewriter[0];
 751                 lex >> fonts_typewriter[1];
 752         } else if (token == "\\font_math") {
 753                 lex >> fonts_math[0];
 754                 lex >> fonts_math[1];
 755         } else if (token == "\\font_default_family") {
 756                 lex >> fonts_default_family;
 757         } else if (token == "\\use_non_tex_fonts") {
 758                 lex >> useNonTeXFonts;
 759         } else if (token == "\\font_sc") {
 760                 lex >> fonts_expert_sc;
 761         } else if (token == "\\font_osf") {
 762                 lex >> fonts_old_figures;
 763         } else if (token == "\\font_sf_scale") {
 764                 lex >> fonts_sans_scale[0];
 765                 lex >> fonts_sans_scale[1];
 766         } else if (token == "\\font_tt_scale") {
 767                 lex >> fonts_typewriter_scale[0];
 768                 lex >> fonts_typewriter_scale[1];
 769         } else if (token == "\\font_cjk") {
 770                 lex >> fonts_cjk;
 771         } else if (token == "\\paragraph_separation") {
 772                 string parsep;
 773                 lex >> parsep;
 774                 paragraph_separation = parseptranslator().find(parsep);
 775         } else if (token == "\\paragraph_indentation") {
 776                 lex.next();
 777                 string indentation = lex.getString();
 778                 pimpl_->indentation = HSpace(indentation);
 779         } else if (token == "\\defskip") {
 780                 lex.next();
 781                 string const defskip = lex.getString();
 782                 pimpl_->defskip = VSpace(defskip);
 783                 if (pimpl_->defskip.kind() == VSpace::DEFSKIP)
 784                         // that is invalid
 785                         pimpl_->defskip = VSpace(VSpace::MEDSKIP);
 786         } else if (token == "\\quotes_language") {
 787                 string quotes_lang;
 788                 lex >> quotes_lang;
 789                 quotes_language = quoteslangtranslator().find(quotes_lang);
 790         } else if (token == "\\papersize") {
 791                 string ppsize;
 792                 lex >> ppsize;
 793                 papersize = papersizetranslator().find(ppsize);
 794         } else if (token == "\\use_geometry") {
 795                 lex >> use_geometry;
 796         } else if (token == "\\use_package") {
 797                 string package;
 798                 int use;
 799                 lex >> package;
 800                 lex >> use;
 801                 use_package(package, packagetranslator().find(use));
 802         } else if (token == "\\cite_engine") {
 803                 lex.eatLine();
 804                 vector<string> engine = getVectorFromString(lex.getString());
 805                 setCiteEngine(engine);
 806         } else if (token == "\\cite_engine_type") {
 807                 string engine_type;
 808                 lex >> engine_type;
 809                 cite_engine_type_ = citeenginetypetranslator().find(engine_type);
 810         } else if (token == "\\biblio_style") {
 811                 lex.eatLine();
 812                 biblio_style = lex.getString();
 813         } else if (token == "\\use_bibtopic") {
 814                 lex >> use_bibtopic;
 815         } else if (token == "\\use_indices") {
 816                 lex >> use_indices;
 817         } else if (token == "\\tracking_changes") {
 818                 lex >> track_changes;
 819         } else if (token == "\\output_changes") {
 820                 lex >> output_changes;
 821         } else if (token == "\\branch") {
 822                 lex.eatLine();
 823                 docstring branch = lex.getDocString();
 824                 branchlist().add(branch);
 825                 while (true) {
 826                         lex.next();
 827                         string const tok = lex.getString();
 828                         if (tok == "\\end_branch")
 829                                 break;
 830                         Branch * branch_ptr = branchlist().find(branch);
 831                         if (tok == "\\selected") {
 832                                 lex.next();
 833                                 if (branch_ptr)
 834                                         branch_ptr->setSelected(lex.getInteger());
 835                         }
 836                         if (tok == "\\filename_suffix") {
 837                                 lex.next();
 838                                 if (branch_ptr)
 839                                         branch_ptr->setFileNameSuffix(lex.getInteger());
 840                         }
 841                         if (tok == "\\color") {
 842                                 lex.eatLine();
 843                                 string color = lex.getString();
 844                                 if (branch_ptr)
 845                                         branch_ptr->setColor(color);
 846                                 // Update also the Color table:
 847                                 if (color == "none")
 848                                         color = lcolor.getX11Name(Color_background);
 849                                 // FIXME UNICODE
 850                                 lcolor.setColor(to_utf8(branch), color);
 851                         }
 852                 }
 853         } else if (token == "\\index") {
 854                 lex.eatLine();
 855                 docstring index = lex.getDocString();
 856                 docstring shortcut;
 857                 indiceslist().add(index);
 858                 while (true) {
 859                         lex.next();
 860                         string const tok = lex.getString();
 861                         if (tok == "\\end_index")
 862                                 break;
 863                         Index * index_ptr = indiceslist().find(index);
 864                         if (tok == "\\shortcut") {
 865                                 lex.next();
 866                                 shortcut = lex.getDocString();
 867                                 if (index_ptr)
 868                                         index_ptr->setShortcut(shortcut);
 869                         }
 870                         if (tok == "\\color") {
 871                                 lex.eatLine();
 872                                 string color = lex.getString();
 873                                 if (index_ptr)
 874                                         index_ptr->setColor(color);
 875                                 // Update also the Color table:
 876                                 if (color == "none")
 877                                         color = lcolor.getX11Name(Color_background);
 878                                 // FIXME UNICODE
 879                                 if (!shortcut.empty())
 880                                         lcolor.setColor(to_utf8(shortcut), color);
 881                         }
 882                 }
 883         } else if (token == "\\author") {
 884                 lex.eatLine();
 885                 istringstream ss(lex.getString());
 886                 Author a;
 887                 ss >> a;
 888                 addAuthor(a);
 889         } else if (token == "\\paperorientation") {
 890                 string orient;
 891                 lex >> orient;
 892                 orientation = paperorientationtranslator().find(orient);
 893         } else if (token == "\\backgroundcolor") {
 894                 lex.eatLine();
 895                 backgroundcolor = lyx::rgbFromHexName(lex.getString());
 896                 isbackgroundcolor = true;
 897         } else if (token == "\\fontcolor") {
 898                 lex.eatLine();
 899                 fontcolor = lyx::rgbFromHexName(lex.getString());
 900                 isfontcolor = true;
 901         } else if (token == "\\notefontcolor") {
 902                 lex.eatLine();
 903                 string color = lex.getString();
 904                 notefontcolor = lyx::rgbFromHexName(color);
 905                 lcolor.setColor("notefontcolor", color);
 906         } else if (token == "\\boxbgcolor") {
 907                 lex.eatLine();
 908                 string color = lex.getString();
 909                 boxbgcolor = lyx::rgbFromHexName(color);
 910                 lcolor.setColor("boxbgcolor", color);
 911         } else if (token == "\\paperwidth") {
 912                 lex >> paperwidth;
 913         } else if (token == "\\paperheight") {
 914                 lex >> paperheight;
 915         } else if (token == "\\leftmargin") {
 916                 lex >> leftmargin;
 917         } else if (token == "\\topmargin") {
 918                 lex >> topmargin;
 919         } else if (token == "\\rightmargin") {
 920                 lex >> rightmargin;
 921         } else if (token == "\\bottommargin") {
 922                 lex >> bottommargin;
 923         } else if (token == "\\headheight") {
 924                 lex >> headheight;
 925         } else if (token == "\\headsep") {
 926                 lex >> headsep;
 927         } else if (token == "\\footskip") {
 928                 lex >> footskip;
 929         } else if (token == "\\columnsep") {
 930                 lex >> columnsep;
 931         } else if (token == "\\paperfontsize") {
 932                 lex >> fontsize;
 933         } else if (token == "\\papercolumns") {
 934                 lex >> columns;
 935         } else if (token == "\\listings_params") {
 936                 string par;
 937                 lex >> par;
 938                 listings_params = InsetListingsParams(par).params();
 939         } else if (token == "\\papersides") {
 940                 int psides;
 941                 lex >> psides;
 942                 sides = sidestranslator().find(psides);
 943         } else if (token == "\\paperpagestyle") {
 944                 lex >> pagestyle;
 945         } else if (token == "\\bullet") {
 946                 readBullets(lex);
 947         } else if (token == "\\bulletLaTeX") {
 948                 readBulletsLaTeX(lex);
 949         } else if (token == "\\secnumdepth") {
 950                 lex >> secnumdepth;
 951         } else if (token == "\\tocdepth") {
 952                 lex >> tocdepth;
 953         } else if (token == "\\spacing") {
 954                 string nspacing;
 955                 lex >> nspacing;
 956                 string tmp_val;
 957                 if (nspacing == "other") {
 958                         lex >> tmp_val;
 959                 }
 960                 spacing().set(spacetranslator().find(nspacing), tmp_val);
 961         } else if (token == "\\float_placement") {
 962                 lex >> float_placement;
 963
 964         } else if (prefixIs(token, "\\pdf_") || token == "\\use_hyperref") {
 965                 string toktmp = pdfoptions().readToken(lex, token);
 966                 if (!toktmp.empty()) {
 967                         lyxerr << "PDFOptions::readToken(): Unknown token: " <<
 968                                 toktmp << endl;
 969                         return toktmp;
 970                 }
 971         } else if (token == "\\html_math_output") {
 972                 int temp;
 973                 lex >> temp;
 974                 html_math_output = static_cast<MathOutput>(temp);
 975         } else if (token == "\\html_be_strict") {
 976                 lex >> html_be_strict;
 977         } else if (token == "\\html_css_as_file") {
 978                 lex >> html_css_as_file;
 979         } else if (token == "\\html_math_img_scale") {
 980                 lex >> html_math_img_scale;
 981         } else if (token == "\\html_latex_start") {
 982                 lex.eatLine();
 983                 html_latex_start = lex.getString();
 984         } else if (token == "\\html_latex_end") {
 985                 lex.eatLine();
 986                 html_latex_end = lex.getString();
 987         } else if (token == "\\output_sync") {
 988                 lex >> output_sync;
 989         } else if (token == "\\output_sync_macro") {
 990                 lex >> output_sync_macro;
 991         } else if (token == "\\use_refstyle") {
 992                 lex >> use_refstyle;
 993         } else {
 994                 lyxerr << "BufferParams::readToken(): Unknown token: " <<
 995                         token << endl;
 996                 return token;
 997         }
 998
 999         return result;
1000 }
1001
1002
1003 namespace {
1004         // Quote argument if it contains spaces
1005         string quoteIfNeeded(string const & str) {
1006                 if (contains(str, ' '))
1007                         return "\"" + str + "\"";
1008                 return str;
1009         }
1010 }
1011
1012
1013 void BufferParams::writeFile(ostream & os, Buffer const * buf) const
1014 {
1015         // The top of the file is written by the buffer.
1016         // Prints out the buffer info into the .lyx file given by file
1017
1018         // the document directory (must end with a path separator)
1019         // realPath() is used to resolve symlinks, while addPath(..., "")
1020         // ensures a trailing path separator.
1021         string filepath = addPath(buf->fileName().onlyPath().realPath(), "");
1022         string const sysdir = addPath(package().system_support().realPath(), "");
1023         string const relpath =
1024                 to_utf8(makeRelPath(from_utf8(filepath), from_utf8(sysdir)));
1025         if (!prefixIs(relpath, "../") && !FileName::isAbsolute(relpath))
1026                 filepath = addPath("/systemlyxdir", relpath);
1027         else if (!lyxrc.save_origin)
1028                 filepath = "unavailable";
1029         os << "\\origin " << quoteIfNeeded(filepath) << '\n';
1030
1031         // the textclass
1032         os << "\\textclass "
1033            << quoteIfNeeded(buf->includedFilePath(addName(buf->layoutPos(),
1034                                                 baseClass()->name()), "layout"))
1035            << '\n';
1036
1037         // then the preamble
1038         if (!preamble.empty()) {
1039                 // remove '\n' from the end of preamble
1040                 string const tmppreamble = rtrim(preamble, "\n");
1041                 os << "\\begin_preamble\n"
1042                    << tmppreamble
1043                    << "\n\\end_preamble\n";
1044         }
1045
1046         // the options
1047         if (!options.empty()) {
1048                 os << "\\options " << options << '\n';
1049         }
1050
1051         // use the class options defined in the layout?
1052         os << "\\use_default_options "
1053            << convert<string>(use_default_options) << "\n";
1054
1055         // the master document
1056         if (!master.empty()) {
1057                 os << "\\master " << master << '\n';
1058         }
1059
1060         // removed modules
1061         if (!removed_modules_.empty()) {
1062                 os << "\\begin_removed_modules" << '\n';
1063                 list<string>::const_iterator it = removed_modules_.begin();
1064                 list<string>::const_iterator en = removed_modules_.end();
1065                 for (; it != en; ++it)
1066                         os << *it << '\n';
1067                 os << "\\end_removed_modules" << '\n';
1068         }
1069
1070         // the modules
1071         if (!layout_modules_.empty()) {
1072                 os << "\\begin_modules" << '\n';
1073                 LayoutModuleList::const_iterator it = layout_modules_.begin();
1074                 LayoutModuleList::const_iterator en = layout_modules_.end();
1075                 for (; it != en; ++it)
1076                         os << *it << '\n';
1077                 os << "\\end_modules" << '\n';
1078         }
1079
1080         // includeonly
1081         if (!included_children_.empty()) {
1082                 os << "\\begin_includeonly" << '\n';
1083                 list<string>::const_iterator it = included_children_.begin();
1084                 list<string>::const_iterator en = included_children_.end();
1085                 for (; it != en; ++it)
1086                         os << *it << '\n';
1087                 os << "\\end_includeonly" << '\n';
1088         }
1089         os << "\\maintain_unincluded_children "
1090            << convert<string>(maintain_unincluded_children) << '\n';
1091
1092         // local layout information
1093         string const local_layout = getLocalLayout(false);
1094         if (!local_layout.empty()) {
1095                 // remove '\n' from the end
1096                 string const tmplocal = rtrim(local_layout, "\n");
1097                 os << "\\begin_local_layout\n"
1098                    << tmplocal
1099                    << "\n\\end_local_layout\n";
1100         }
1101         string const forced_local_layout = getLocalLayout(true);
1102         if (!forced_local_layout.empty()) {
1103                 // remove '\n' from the end
1104                 string const tmplocal = rtrim(forced_local_layout, "\n");
1105                 os << "\\begin_forced_local_layout\n"
1106                    << tmplocal
1107                    << "\n\\end_forced_local_layout\n";
1108         }
1109
1110         // then the text parameters
1111         if (language != ignore_language)
1112                 os << "\\language " << language->lang() << '\n';
1113         os << "\\language_package " << lang_package
1114            << "\n\\inputencoding " << inputenc
1115            << "\n\\fontencoding " << fontenc
1116            << "\n\\font_roman \"" << fonts_roman[0]
1117            << "\" \"" << fonts_roman[1] << '"'
1118            << "\n\\font_sans \"" << fonts_sans[0]
1119            << "\" \"" << fonts_sans[1] << '"'
1120            << "\n\\font_typewriter \"" << fonts_typewriter[0]
1121            << "\" \"" << fonts_typewriter[1] << '"'
1122            << "\n\\font_math \"" << fonts_math[0]
1123            << "\" \"" << fonts_math[1] << '"'
1124            << "\n\\font_default_family " << fonts_default_family
1125            << "\n\\use_non_tex_fonts " << convert<string>(useNonTeXFonts)
1126            << "\n\\font_sc " << convert<string>(fonts_expert_sc)
1127            << "\n\\font_osf " << convert<string>(fonts_old_figures)
1128            << "\n\\font_sf_scale " << fonts_sans_scale[0]
1129            << ' ' << fonts_sans_scale[1]
1130            << "\n\\font_tt_scale " << fonts_typewriter_scale[0]
1131            << ' ' << fonts_typewriter_scale[1]
1132            << '\n';
1133         if (!fonts_cjk.empty()) {
1134                 os << "\\font_cjk " << fonts_cjk << '\n';
1135         }
1136         os << "\\graphics " << graphics_driver << '\n';
1137         os << "\\default_output_format " << default_output_format << '\n';
1138         os << "\\output_sync " << output_sync << '\n';
1139         if (!output_sync_macro.empty())
1140                 os << "\\output_sync_macro \"" << output_sync_macro << "\"\n";
1141         os << "\\bibtex_command " << bibtex_command << '\n';
1142         os << "\\index_command " << index_command << '\n';
1143
1144         if (!float_placement.empty()) {
1145                 os << "\\float_placement " << float_placement << '\n';
1146         }
1147         os << "\\paperfontsize " << fontsize << '\n';
1148
1149         spacing().writeFile(os);
1150         pdfoptions().writeFile(os);
1151
1152         os << "\\papersize " << string_papersize[papersize]
1153            << "\n\\use_geometry " << convert<string>(use_geometry);
1154         map<string, string> const & packages = auto_packages();
1155         for (map<string, string>::const_iterator it = packages.begin();
1156              it != packages.end(); ++it)
1157                 os << "\n\\use_package " << it->first << ' '
1158                    << use_package(it->first);
1159
1160         os << "\n\\cite_engine ";
1161
1162         if (!cite_engine_.empty()) {
1163                 LayoutModuleList::const_iterator be = cite_engine_.begin();
1164                 LayoutModuleList::const_iterator en = cite_engine_.end();
1165                 for (LayoutModuleList::const_iterator it = be; it != en; ++it) {
1166                         if (it != be)
1167                                 os << ',';
1168                         os << *it;
1169                 }
1170         } else {
1171                 os << "basic";
1172         }
1173
1174         os << "\n\\cite_engine_type " << citeenginetypetranslator().find(cite_engine_type_)
1175            << "\n\\biblio_style " << biblio_style
1176            << "\n\\use_bibtopic " << convert<string>(use_bibtopic)
1177            << "\n\\use_indices " << convert<string>(use_indices)
1178            << "\n\\paperorientation " << string_orientation[orientation]
1179            << "\n\\suppress_date " << convert<string>(suppress_date)
1180            << "\n\\justification " << convert<string>(justification)
1181            << "\n\\use_refstyle " << use_refstyle
1182            << '\n';
1183         if (isbackgroundcolor == true)
1184                 os << "\\backgroundcolor " << lyx::X11hexname(backgroundcolor) << '\n';
1185         if (isfontcolor == true)
1186                 os << "\\fontcolor " << lyx::X11hexname(fontcolor) << '\n';
1187         if (notefontcolor != lyx::rgbFromHexName("#cccccc"))
1188                 os << "\\notefontcolor " << lyx::X11hexname(notefontcolor) << '\n';
1189         if (boxbgcolor != lyx::rgbFromHexName("#ff0000"))
1190                 os << "\\boxbgcolor " << lyx::X11hexname(boxbgcolor) << '\n';
1191
1192         BranchList::const_iterator it = branchlist().begin();
1193         BranchList::const_iterator end = branchlist().end();
1194         for (; it != end; ++it) {
1195                 os << "\\branch " << to_utf8(it->branch())
1196                    << "\n\\selected " << it->isSelected()
1197                    << "\n\\filename_suffix " << it->hasFileNameSuffix()
1198                    << "\n\\color " << lyx::X11hexname(it->color())
1199                    << "\n\\end_branch"
1200                    << "\n";
1201         }
1202
1203         IndicesList::const_iterator iit = indiceslist().begin();
1204         IndicesList::const_iterator iend = indiceslist().end();
1205         for (; iit != iend; ++iit) {
1206                 os << "\\index " << to_utf8(iit->index())
1207                    << "\n\\shortcut " << to_utf8(iit->shortcut())
1208                    << "\n\\color " << lyx::X11hexname(iit->color())
1209                    << "\n\\end_index"
1210                    << "\n";
1211         }
1212
1213         if (!paperwidth.empty())
1214                 os << "\\paperwidth "
1215                    << VSpace(paperwidth).asLyXCommand() << '\n';
1216         if (!paperheight.empty())
1217                 os << "\\paperheight "
1218                    << VSpace(paperheight).asLyXCommand() << '\n';
1219         if (!leftmargin.empty())
1220                 os << "\\leftmargin "
1221                    << VSpace(leftmargin).asLyXCommand() << '\n';
1222         if (!topmargin.empty())
1223                 os << "\\topmargin "
1224                    << VSpace(topmargin).asLyXCommand() << '\n';
1225         if (!rightmargin.empty())
1226                 os << "\\rightmargin "
1227                    << VSpace(rightmargin).asLyXCommand() << '\n';
1228         if (!bottommargin.empty())
1229                 os << "\\bottommargin "
1230                    << VSpace(bottommargin).asLyXCommand() << '\n';
1231         if (!headheight.empty())
1232                 os << "\\headheight "
1233                    << VSpace(headheight).asLyXCommand() << '\n';
1234         if (!headsep.empty())
1235                 os << "\\headsep "
1236                    << VSpace(headsep).asLyXCommand() << '\n';
1237         if (!footskip.empty())
1238                 os << "\\footskip "
1239                    << VSpace(footskip).asLyXCommand() << '\n';
1240         if (!columnsep.empty())
1241                 os << "\\columnsep "
1242                          << VSpace(columnsep).asLyXCommand() << '\n';
1243         os << "\\secnumdepth " << secnumdepth
1244            << "\n\\tocdepth " << tocdepth
1245            << "\n\\paragraph_separation "
1246            << string_paragraph_separation[paragraph_separation];
1247         if (!paragraph_separation)
1248                 os << "\n\\paragraph_indentation " << getIndentation().asLyXCommand();
1249         else
1250                 os << "\n\\defskip " << getDefSkip().asLyXCommand();
1251         os << "\n\\quotes_language "
1252            << string_quotes_language[quotes_language]
1253            << "\n\\papercolumns " << columns
1254            << "\n\\papersides " << sides
1255            << "\n\\paperpagestyle " << pagestyle << '\n';
1256         if (!listings_params.empty())
1257                 os << "\\listings_params \"" <<
1258                         InsetListingsParams(listings_params).encodedString() << "\"\n";
1259         for (int i = 0; i < 4; ++i) {
1260                 if (user_defined_bullet(i) != ITEMIZE_DEFAULTS[i]) {
1261                         if (user_defined_bullet(i).getFont() != -1) {
1262                                 os << "\\bullet " << i << " "
1263                                    << user_defined_bullet(i).getFont() << " "
1264                                    << user_defined_bullet(i).getCharacter() << " "
1265                                    << user_defined_bullet(i).getSize() << "\n";
1266                         }
1267                         else {
1268                                 // FIXME UNICODE
1269                                 os << "\\bulletLaTeX " << i << " \""
1270                                    << lyx::to_ascii(user_defined_bullet(i).getText())
1271                                    << "\"\n";
1272                         }
1273                 }
1274         }
1275
1276         os << "\\tracking_changes " << convert<string>(track_changes) << '\n'
1277            << "\\html_math_output " << html_math_output << '\n'
1278            << "\\html_css_as_file " << html_css_as_file << '\n'
1279                 // \output_changes is output at a distance from \tracking changes as a
1280                 // workaround to bug #9841: both parameters can be seen as per-user
1281                 // preferences and therefore can cause undesirable merge conflicts, in a
1282                 // multi-author setting, if it were treated as a single block by the
1283                 // version control system.
1284            << "\\output_changes " << convert<string>(output_changes) << '\n'
1285            << "\\html_be_strict " << convert<string>(html_be_strict) << '\n';
1286
1287         if (html_math_img_scale != 1.0)
1288                 os << "\\html_math_img_scale " << convert<string>(html_math_img_scale) << '\n';
1289         if (!html_latex_start.empty())
1290                 os << "\\html_latex_start " << html_latex_start << '\n';
1291         if (!html_latex_end.empty())
1292                  os << "\\html_latex_end " << html_latex_end << '\n';
1293
1294         os << pimpl_->authorlist;
1295 }
1296
1297
1298 void BufferParams::validate(LaTeXFeatures & features) const
1299 {
1300         features.require(documentClass().requires());
1301
1302         if (columns > 1 && language->rightToLeft())
1303                 features.require("rtloutputdblcol");
1304
1305         if (output_changes) {
1306                 bool dvipost    = LaTeXFeatures::isAvailable("dvipost");
1307                 bool xcolorulem = LaTeXFeatures::isAvailable("ulem") &&
1308                                   LaTeXFeatures::isAvailable("xcolor");
1309
1310                 switch (features.runparams().flavor) {
1311                 case OutputParams::LATEX:
1312                 case OutputParams::DVILUATEX:
1313                         if (dvipost) {
1314                                 features.require("ct-dvipost");
1315                                 features.require("dvipost");
1316                         } else if (xcolorulem) {
1317                                 features.require("ct-xcolor-ulem");
1318                                 features.require("ulem");
1319                                 features.require("xcolor");
1320                         } else {
1321                                 features.require("ct-none");
1322                         }
1323                         break;
1324                 case OutputParams::LUATEX:
1325                 case OutputParams::PDFLATEX:
1326                 case OutputParams::XETEX:
1327                         if (xcolorulem) {
1328                                 features.require("ct-xcolor-ulem");
1329                                 features.require("ulem");
1330                                 features.require("xcolor");
1331                                 // improves color handling in PDF output
1332                                 features.require("pdfcolmk");
1333                         } else {
1334                                 features.require("ct-none");
1335                         }
1336                         break;
1337                 default:
1338                         break;
1339                 }
1340         }
1341
1342         // Floats with 'Here definitely' as default setting.
1343         if (float_placement.find('H') != string::npos)
1344                 features.require("float");
1345
1346         for (PackageMap::const_iterator it = use_packages.begin();
1347              it != use_packages.end(); ++it) {
1348                 if (it->first == "amsmath") {
1349                         // AMS Style is at document level
1350                         if (it->second == package_on ||
1351                             features.isProvided("amsmath"))
1352                                 features.require(it->first);
1353                 } else if (it->second == package_on)
1354                         features.require(it->first);
1355         }
1356
1357         // Document-level line spacing
1358         if (spacing().getSpace() != Spacing::Single && !spacing().isDefault())
1359                 features.require("setspace");
1360
1361         // the bullet shapes are buffer level not paragraph level
1362         // so they are tested here
1363         for (int i = 0; i < 4; ++i) {
1364                 if (user_defined_bullet(i) == ITEMIZE_DEFAULTS[i])
1365                         continue;
1366                 int const font = user_defined_bullet(i).getFont();
1367                 if (font == 0) {
1368                         int const c = user_defined_bullet(i).getCharacter();
1369                         if (c == 16
1370                             || c == 17
1371                             || c == 25
1372                             || c == 26
1373                             || c == 31) {
1374                                 features.require("latexsym");
1375                         }
1376                 } else if (font == 1) {
1377                         features.require("amssymb");
1378                 } else if (font >= 2 && font <= 5) {
1379                         features.require("pifont");
1380                 }
1381         }
1382
1383         if (pdfoptions().use_hyperref) {
1384                 features.require("hyperref");
1385                 // due to interferences with babel and hyperref, the color package has to
1386                 // be loaded after hyperref when hyperref is used with the colorlinks
1387                 // option, see http://www.lyx.org/trac/ticket/5291
1388                 if (pdfoptions().colorlinks)
1389                         features.require("color");
1390         }
1391         if (!listings_params.empty()) {
1392                 // do not test validity because listings_params is
1393                 // supposed to be valid
1394                 string par =
1395                         InsetListingsParams(listings_params).separatedParams(true);
1396                 // we can't support all packages, but we should load the color package
1397                 if (par.find("\\color", 0) != string::npos)
1398                         features.require("color");
1399         }
1400
1401         // some languages are only available via polyglossia
1402         if (features.hasPolyglossiaExclusiveLanguages())
1403            features.require("polyglossia");
1404
1405         if (useNonTeXFonts && fontsMath() != "auto")
1406                 features.require("unicode-math");
1407
1408         if (!language->requires().empty())
1409                 features.require(language->requires());
1410 }
1411
1412
1413 bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
1414                               FileName const & filepath) const
1415 {
1416         // http://www.tug.org/texmf-dist/doc/latex/base/fixltx2e.pdf
1417         // !! To use the Fix-cm package, load it before \documentclass, and use the command
1418         // \RequirePackage to do so, rather than the normal \usepackage
1419         // Do not try to load any other package before the document class, unless you
1420         // have a thorough understanding of the LATEX internals and know exactly what you
1421         // are doing!
1422         if (features.mustProvide("fix-cm"))
1423                 os << "\\RequirePackage{fix-cm}\n";
1424         // Likewise for fixltx2e. If other packages conflict with this policy,
1425         // treat it as a package bug (and report it!)
1426         // See http://www.latex-project.org/cgi-bin/ltxbugs2html?pr=latex/4407
1427         if (features.mustProvide("fixltx2e"))
1428                 os << "\\RequirePackage{fixltx2e}\n";
1429
1430         os << "\\documentclass";
1431
1432         DocumentClass const & tclass = documentClass();
1433
1434         ostringstream clsoptions; // the document class options.
1435
1436         if (tokenPos(tclass.opt_fontsize(),
1437                      '|', fontsize) >= 0) {
1438                 // only write if existing in list (and not default)
1439                 clsoptions << fontsize << "pt,";
1440         }
1441
1442         // all paper sizes except of A4, A5, B5 and the US sizes need the
1443         // geometry package
1444         bool nonstandard_papersize = papersize != PAPER_DEFAULT
1445                 && papersize != PAPER_USLETTER
1446                 && papersize != PAPER_USLEGAL
1447                 && papersize != PAPER_USEXECUTIVE
1448                 && papersize != PAPER_A4
1449                 && papersize != PAPER_A5
1450                 && papersize != PAPER_B5;
1451
1452         if (!use_geometry) {
1453                 switch (papersize) {
1454                 case PAPER_A4:
1455                         clsoptions << "a4paper,";
1456                         break;
1457                 case PAPER_USLETTER:
1458                         clsoptions << "letterpaper,";
1459                         break;
1460                 case PAPER_A5:
1461                         clsoptions << "a5paper,";
1462                         break;
1463                 case PAPER_B5:
1464                         clsoptions << "b5paper,";
1465                         break;
1466                 case PAPER_USEXECUTIVE:
1467                         clsoptions << "executivepaper,";
1468                         break;
1469                 case PAPER_USLEGAL:
1470                         clsoptions << "legalpaper,";
1471                         break;
1472                 case PAPER_DEFAULT:
1473                 case PAPER_A0:
1474                 case PAPER_A1:
1475                 case PAPER_A2:
1476                 case PAPER_A3:
1477                 case PAPER_A6:
1478                 case PAPER_B0:
1479                 case PAPER_B1:
1480                 case PAPER_B2:
1481                 case PAPER_B3:
1482                 case PAPER_B4:
1483                 case PAPER_B6:
1484                 case PAPER_C0:
1485                 case PAPER_C1:
1486                 case PAPER_C2:
1487                 case PAPER_C3:
1488                 case PAPER_C4:
1489                 case PAPER_C5:
1490                 case PAPER_C6:
1491                 case PAPER_JISB0:
1492                 case PAPER_JISB1:
1493                 case PAPER_JISB2:
1494                 case PAPER_JISB3:
1495                 case PAPER_JISB4:
1496                 case PAPER_JISB5:
1497                 case PAPER_JISB6:
1498                 case PAPER_CUSTOM:
1499                         break;
1500                 }
1501         }
1502
1503         // if needed
1504         if (sides != tclass.sides()) {
1505                 switch (sides) {
1506                 case OneSide:
1507                         clsoptions << "oneside,";
1508                         break;
1509                 case TwoSides:
1510                         clsoptions << "twoside,";
1511                         break;
1512                 }
1513         }
1514
1515         // if needed
1516         if (columns != tclass.columns()) {
1517                 if (columns == 2)
1518                         clsoptions << "twocolumn,";
1519                 else
1520                         clsoptions << "onecolumn,";
1521         }
1522
1523         if (!use_geometry
1524             && orientation == ORIENTATION_LANDSCAPE)
1525                 clsoptions << "landscape,";
1526
1527         // language should be a parameter to \documentclass
1528         if (language->babel() == "hebrew"
1529             && default_language->babel() != "hebrew")
1530                 // This seems necessary
1531                 features.useLanguage(default_language);
1532
1533         ostringstream language_options;
1534         bool const use_babel = features.useBabel() && !features.isProvided("babel");
1535         bool const use_polyglossia = features.usePolyglossia();
1536         bool const global = lyxrc.language_global_options;
1537         if (use_babel || (use_polyglossia && global)) {
1538                 language_options << features.getBabelLanguages();
1539                 if (!language->babel().empty()) {
1540                         if (!language_options.str().empty())
1541                                 language_options << ',';
1542                         language_options << language->babel();
1543                 }
1544                 if (global && !features.needBabelLangOptions()
1545                     && !language_options.str().empty())
1546                         clsoptions << language_options.str() << ',';
1547         }
1548
1549         // the predefined options from the layout
1550         if (use_default_options && !tclass.options().empty())
1551                 clsoptions << tclass.options() << ',';
1552
1553         // the user-defined options
1554         if (!options.empty()) {
1555                 clsoptions << options << ',';
1556         }
1557
1558         string strOptions(clsoptions.str());
1559         if (!strOptions.empty()) {
1560                 strOptions = rtrim(strOptions, ",");
1561                 // FIXME UNICODE
1562                 os << '[' << from_utf8(strOptions) << ']';
1563         }
1564
1565         os << '{' << from_ascii(tclass.latexname()) << "}\n";
1566         // end of \documentclass defs
1567
1568         // if we use fontspec or newtxmath, we have to load the AMS packages here
1569         string const ams = features.loadAMSPackages();
1570         bool const ot1 = (font_encoding() == "default" || font_encoding() == "OT1");
1571         bool const use_newtxmath =
1572                 theLaTeXFonts().getLaTeXFont(from_ascii(fontsMath())).getUsedPackage(
1573                         ot1, false, false) == "newtxmath";
1574         if ((useNonTeXFonts || use_newtxmath) && !ams.empty())
1575                 os << from_ascii(ams);
1576
1577         if (useNonTeXFonts) {
1578                 os << "\\usepackage{fontspec}\n";
1579                 if (features.mustProvide("unicode-math")
1580                     && features.isAvailable("unicode-math"))
1581                         os << "\\usepackage{unicode-math}\n";
1582         }
1583
1584         // font selection must be done before loading fontenc.sty
1585         string const fonts = loadFonts(features);
1586         if (!fonts.empty())
1587                 os << from_utf8(fonts);
1588
1589         if (fonts_default_family != "default")
1590                 os << "\\renewcommand{\\familydefault}{\\"
1591                    << from_ascii(fonts_default_family) << "}\n";
1592
1593         // set font encoding
1594         // XeTeX and LuaTeX (with OS fonts) do not need fontenc
1595         if (!useNonTeXFonts && !features.isProvided("fontenc")
1596             && font_encoding() != "default") {
1597                 // get main font encodings
1598                 vector<string> fontencs = font_encodings();
1599                 // get font encodings of secondary languages
1600                 features.getFontEncodings(fontencs);
1601                 if (!fontencs.empty()) {
1602                         os << "\\usepackage["
1603                            << from_ascii(getStringFromVector(fontencs))
1604                            << "]{fontenc}\n";
1605                 }
1606         }
1607
1608         // handle inputenc etc.
1609         writeEncodingPreamble(os, features);
1610
1611         // includeonly
1612         if (!features.runparams().includeall && !included_children_.empty()) {
1613                 os << "\\includeonly{";
1614                 list<string>::const_iterator it = included_children_.begin();
1615                 list<string>::const_iterator en = included_children_.end();
1616                 bool first = true;
1617                 for (; it != en; ++it) {
1618                         string incfile = *it;
1619                         FileName inc = makeAbsPath(incfile, filepath.absFileName());
1620                         string mangled = DocFileName(changeExtension(inc.absFileName(), ".tex")).
1621                         mangledFileName();
1622                         if (!features.runparams().nice)
1623                                 incfile = mangled;
1624                         // \includeonly doesn't want an extension
1625                         incfile = changeExtension(incfile, string());
1626                         incfile = support::latex_path(incfile);
1627                         if (!incfile.empty()) {
1628                                 if (!first)
1629                                         os << ",";
1630                                 os << from_utf8(incfile);
1631                         }
1632                         first = false;
1633                 }
1634                 os << "}\n";
1635         }
1636
1637         if (!features.isProvided("geometry")
1638             && (use_geometry || nonstandard_papersize)) {
1639                 odocstringstream ods;
1640                 if (!getGraphicsDriver("geometry").empty())
1641                         ods << getGraphicsDriver("geometry");
1642                 if (orientation == ORIENTATION_LANDSCAPE)
1643                         ods << ",landscape";
1644                 switch (papersize) {
1645                 case PAPER_CUSTOM:
1646                         if (!paperwidth.empty())
1647                                 ods << ",paperwidth="
1648                                    << from_ascii(paperwidth);
1649                         if (!paperheight.empty())
1650                                 ods << ",paperheight="
1651                                    << from_ascii(paperheight);
1652                         break;
1653                 case PAPER_USLETTER:
1654                         ods << ",letterpaper";
1655                         break;
1656                 case PAPER_USLEGAL:
1657                         ods << ",legalpaper";
1658                         break;
1659                 case PAPER_USEXECUTIVE:
1660                         ods << ",executivepaper";
1661                         break;
1662                 case PAPER_A0:
1663                         ods << ",a0paper";
1664                         break;
1665                 case PAPER_A1:
1666                         ods << ",a1paper";
1667                         break;
1668                 case PAPER_A2:
1669                         ods << ",a2paper";
1670                         break;
1671                 case PAPER_A3:
1672                         ods << ",a3paper";
1673                         break;
1674                 case PAPER_A4:
1675                         ods << ",a4paper";
1676                         break;
1677                 case PAPER_A5:
1678                         ods << ",a5paper";
1679                         break;
1680                 case PAPER_A6:
1681                         ods << ",a6paper";
1682                         break;
1683                 case PAPER_B0:
1684                         ods << ",b0paper";
1685                         break;
1686                 case PAPER_B1:
1687                         ods << ",b1paper";
1688                         break;
1689                 case PAPER_B2:
1690                         ods << ",b2paper";
1691                         break;
1692                 case PAPER_B3:
1693                         ods << ",b3paper";
1694                         break;
1695                 case PAPER_B4:
1696                         ods << ",b4paper";
1697                         break;
1698                 case PAPER_B5:
1699                         ods << ",b5paper";
1700                         break;
1701                 case PAPER_B6:
1702                         ods << ",b6paper";
1703                         break;
1704                 case PAPER_C0:
1705                         ods << ",c0paper";
1706                         break;
1707                 case PAPER_C1:
1708                         ods << ",c1paper";
1709                         break;
1710                 case PAPER_C2:
1711                         ods << ",c2paper";
1712                         break;
1713                 case PAPER_C3:
1714                         ods << ",c3paper";
1715                         break;
1716                 case PAPER_C4:
1717                         ods << ",c4paper";
1718                         break;
1719                 case PAPER_C5:
1720                         ods << ",c5paper";
1721                         break;
1722                 case PAPER_C6:
1723                         ods << ",c6paper";
1724                         break;
1725                 case PAPER_JISB0:
1726                         ods << ",b0j";
1727                         break;
1728                 case PAPER_JISB1:
1729                         ods << ",b1j";
1730                         break;
1731                 case PAPER_JISB2:
1732                         ods << ",b2j";
1733                         break;
1734                 case PAPER_JISB3:
1735                         ods << ",b3j";
1736                         break;
1737                 case PAPER_JISB4:
1738                         ods << ",b4j";
1739                         break;
1740                 case PAPER_JISB5:
1741                         ods << ",b5j";
1742                         break;
1743                 case PAPER_JISB6:
1744                         ods << ",b6j";
1745                         break;
1746                 case PAPER_DEFAULT:
1747                         break;
1748                 }
1749                 docstring const g_options = trim(ods.str(), ",");
1750                 os << "\\usepackage";
1751                 if (!g_options.empty())
1752                         os << '[' << g_options << ']';
1753                 os << "{geometry}\n";
1754                 // output this only if use_geometry is true
1755                 if (use_geometry) {
1756                         os << "\\geometry{verbose";
1757                         if (!topmargin.empty())
1758                                 os << ",tmargin=" << from_ascii(Length(topmargin).asLatexString());
1759                         if (!bottommargin.empty())
1760                                 os << ",bmargin=" << from_ascii(Length(bottommargin).asLatexString());
1761                         if (!leftmargin.empty())
1762                                 os << ",lmargin=" << from_ascii(Length(leftmargin).asLatexString());
1763                         if (!rightmargin.empty())
1764                                 os << ",rmargin=" << from_ascii(Length(rightmargin).asLatexString());
1765                         if (!headheight.empty())
1766                                 os << ",headheight=" << from_ascii(Length(headheight).asLatexString());
1767                         if (!headsep.empty())
1768                                 os << ",headsep=" << from_ascii(Length(headsep).asLatexString());
1769                         if (!footskip.empty())
1770                                 os << ",footskip=" << from_ascii(Length(footskip).asLatexString());
1771                         if (!columnsep.empty())
1772                                 os << ",columnsep=" << from_ascii(Length(columnsep).asLatexString());
1773                         os << "}\n";
1774                 }
1775         } else if (orientation == ORIENTATION_LANDSCAPE
1776                    || papersize != PAPER_DEFAULT) {
1777                 features.require("papersize");
1778         }
1779
1780         if (tokenPos(tclass.opt_pagestyle(), '|', pagestyle) >= 0) {
1781                 if (pagestyle == "fancy")
1782                         os << "\\usepackage{fancyhdr}\n";
1783                 os << "\\pagestyle{" << from_ascii(pagestyle) << "}\n";
1784         }
1785
1786         // only output when the background color is not default
1787         if (isbackgroundcolor == true) {
1788                 // only require color here, the background color will be defined
1789                 // in LaTeXFeatures.cpp to avoid interferences with the LaTeX
1790                 // package pdfpages
1791                 features.require("color");
1792                 features.require("pagecolor");
1793         }
1794
1795         // only output when the font color is not default
1796         if (isfontcolor == true) {
1797                 // only require color here, the font color will be defined
1798                 // in LaTeXFeatures.cpp to avoid interferences with the LaTeX
1799                 // package pdfpages
1800                 features.require("color");
1801                 features.require("fontcolor");
1802         }
1803
1804         // Only if class has a ToC hierarchy
1805         if (tclass.hasTocLevels()) {
1806                 if (secnumdepth != tclass.secnumdepth()) {
1807                         os << "\\setcounter{secnumdepth}{"
1808                            << secnumdepth
1809                            << "}\n";
1810                 }
1811                 if (tocdepth != tclass.tocdepth()) {
1812                         os << "\\setcounter{tocdepth}{"
1813                            << tocdepth
1814                            << "}\n";
1815                 }
1816         }
1817
1818         if (paragraph_separation) {
1819                 // when skip separation
1820                 switch (getDefSkip().kind()) {
1821                 case VSpace::SMALLSKIP:
1822                         os << "\\setlength{\\parskip}{\\smallskipamount}\n";
1823                         break;
1824                 case VSpace::MEDSKIP:
1825                         os << "\\setlength{\\parskip}{\\medskipamount}\n";
1826                         break;
1827                 case VSpace::BIGSKIP:
1828                         os << "\\setlength{\\parskip}{\\bigskipamount}\n";
1829                         break;
1830                 case VSpace::LENGTH:
1831                         os << "\\setlength{\\parskip}{"
1832                            << from_utf8(getDefSkip().length().asLatexString())
1833                            << "}\n";
1834                         break;
1835                 default: // should never happen // Then delete it.
1836                         os << "\\setlength{\\parskip}{\\medskipamount}\n";
1837                         break;
1838                 }
1839                 os << "\\setlength{\\parindent}{0pt}\n";
1840         } else {
1841                 // when separation by indentation
1842                 // only output something when a width is given
1843                 if (getIndentation().asLyXCommand() != "default") {
1844                         os << "\\setlength{\\parindent}{"
1845                            << from_utf8(getIndentation().asLatexCommand())
1846                            << "}\n";
1847                 }
1848         }
1849
1850         // Now insert the LyX specific LaTeX commands...
1851         docstring lyxpreamble;
1852         features.resolveAlternatives();
1853
1854         if (output_sync) {
1855                 if (!output_sync_macro.empty())
1856                         lyxpreamble += from_utf8(output_sync_macro) +"\n";
1857                 else if (features.runparams().flavor == OutputParams::LATEX)
1858                         lyxpreamble += "\\usepackage[active]{srcltx}\n";
1859                 else if (features.runparams().flavor == OutputParams::PDFLATEX)
1860                         lyxpreamble += "\\synctex=-1\n";
1861         }
1862
1863         // The package options (via \PassOptionsToPackage)
1864         lyxpreamble += from_ascii(features.getPackageOptions());
1865
1866         // due to interferences with babel and hyperref, the color package has to
1867         // be loaded (when it is not already loaded) before babel when hyperref
1868         // is used with the colorlinks option, see
1869         // http://www.lyx.org/trac/ticket/5291
1870         // we decided therefore to load color always before babel, see
1871         // http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg144349.html
1872         lyxpreamble += from_ascii(features.getColorOptions());
1873
1874         // If we use hyperref, jurabib, japanese, varioref or vietnamese,
1875         // we have to call babel before
1876         if (use_babel
1877             && (features.isRequired("jurabib")
1878                 || features.isRequired("hyperref")
1879                 || features.isRequired("varioref")
1880                 || features.isRequired("vietnamese")
1881                 || features.isRequired("japanese"))) {
1882                         // FIXME UNICODE
1883                         lyxpreamble += from_utf8(features.getBabelPresettings());
1884                         lyxpreamble += from_utf8(babelCall(language_options.str(),
1885                                                            features.needBabelLangOptions())) + '\n';
1886                         lyxpreamble += from_utf8(features.getBabelPostsettings());
1887         }
1888
1889         // The optional packages;
1890         lyxpreamble += from_ascii(features.getPackages());
1891
1892         // Additional Indices
1893         if (features.isRequired("splitidx")) {
1894                 IndicesList::const_iterator iit = indiceslist().begin();
1895                 IndicesList::const_iterator iend = indiceslist().end();
1896                 for (; iit != iend; ++iit) {
1897                         pair<docstring, docstring> indexname_latex =
1898                                 features.runparams().encoding->latexString(iit->index(),
1899                                                                            features.runparams().dryrun);
1900                         if (!indexname_latex.second.empty()) {
1901                                 // issue a warning about omitted characters
1902                                 // FIXME: should be passed to the error dialog
1903                                 frontend::Alert::warning(_("Uncodable characters"),
1904                                         bformat(_("The following characters that are used in an index name are not\n"
1905                                                   "representable in the current encoding and therefore have been omitted:\n%1$s."),
1906                                                 indexname_latex.second));
1907                         }
1908                         lyxpreamble += "\\newindex[";
1909                         lyxpreamble += indexname_latex.first;
1910                         lyxpreamble += "]{";
1911                         lyxpreamble += escape(iit->shortcut());
1912                         lyxpreamble += "}\n";
1913                 }
1914         }
1915
1916         // Line spacing
1917         lyxpreamble += from_utf8(spacing().writePreamble(features.isProvided("SetSpace")));
1918
1919         // PDF support.
1920         // * Hyperref manual: "Make sure it comes last of your loaded
1921         //   packages, to give it a fighting chance of not being over-written,
1922         //   since its job is to redefine many LaTeX commands."
1923         // * Email from Heiko Oberdiek: "It is usually better to load babel
1924         //   before hyperref. Then hyperref has a chance to detect babel.
1925         // * Has to be loaded before the "LyX specific LaTeX commands" to
1926         //   avoid errors with algorithm floats.
1927         // use hyperref explicitly if it is required
1928         if (features.isRequired("hyperref")) {
1929                 // pass what we have to stream here, since we need
1930                 // to access the stream itself in PDFOptions.
1931                 os << lyxpreamble;
1932
1933                 OutputParams tmp_params = features.runparams();
1934                 pdfoptions().writeLaTeX(tmp_params, os,
1935                                         features.isProvided("hyperref"));
1936                 // set back for the rest
1937                 lyxpreamble.clear();
1938                 // correctly break URLs with hyperref and dvi output
1939                 if (features.runparams().flavor == OutputParams::LATEX
1940                     && features.isAvailable("breakurl"))
1941                         lyxpreamble += "\\usepackage{breakurl}\n";
1942         } else if (features.isRequired("nameref"))
1943                 // hyperref loads this automatically
1944                 lyxpreamble += "\\usepackage{nameref}\n";
1945
1946         // bibtopic needs to be loaded after hyperref.
1947         // the dot provides the aux file naming which LyX can detect.
1948         if (features.mustProvide("bibtopic"))
1949                 lyxpreamble += "\\usepackage[dot]{bibtopic}\n";
1950
1951         // Will be surrounded by \makeatletter and \makeatother when not empty
1952         docstring atlyxpreamble;
1953
1954         // Some macros LyX will need
1955         docstring tmppreamble(features.getMacros());
1956
1957         if (!tmppreamble.empty())
1958                 atlyxpreamble += "\n%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "
1959                         "LyX specific LaTeX commands.\n"
1960                         + tmppreamble + '\n';
1961
1962         // the text class specific preamble
1963         tmppreamble = features.getTClassPreamble();
1964         if (!tmppreamble.empty())
1965                 atlyxpreamble += "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "
1966                         "Textclass specific LaTeX commands.\n"
1967                         + tmppreamble + '\n';
1968
1969         // suppress date if selected
1970         // use \@ifundefined because we cannot be sure that every document class
1971         // has a \date command
1972         if (suppress_date)
1973                 atlyxpreamble += "\\@ifundefined{date}{}{\\date{}}\n";
1974
1975         /* the user-defined preamble */
1976         if (!containsOnly(preamble, " \n\t")) {
1977                 // FIXME UNICODE
1978                 atlyxpreamble += "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "
1979                         "User specified LaTeX commands.\n";
1980
1981                 // Check if the user preamble contains uncodable glyphs
1982                 docstring const u_preamble = from_utf8(preamble);
1983                 odocstringstream user_preamble;
1984                 docstring uncodable_glyphs;
1985                 Encoding const * const enc = features.runparams().encoding;
1986                 if (enc) {
1987                         for (size_t n = 0; n < u_preamble.size(); ++n) {
1988                                 char_type c = u_preamble[n];
1989                                 if (!enc->encodable(c)) {
1990                                         docstring const glyph(1, c);
1991                                         LYXERR0("Uncodable character '"
1992                                                 << glyph
1993                                                 << "' in user preamble!");
1994                                         uncodable_glyphs += glyph;
1995                                         if (features.runparams().dryrun) {
1996                                                 user_preamble << "<" << _("LyX Warning: ")
1997                                                    << _("uncodable character") << " '";
1998                                                 user_preamble.put(c);
1999                                                 user_preamble << "'>";
2000                                         }
2001                                 } else
2002                                         user_preamble.put(c);
2003                         }
2004                 } else
2005                         user_preamble << u_preamble;
2006
2007                 // On BUFFER_VIEW|UPDATE, warn user if we found uncodable glyphs
2008                 if (!features.runparams().dryrun && !uncodable_glyphs.empty()) {
2009                         frontend::Alert::warning(
2010                                 _("Uncodable character in user preamble"),
2011                                 support::bformat(
2012                                   _("The user preamble of your document contains glyphs "
2013                                     "that are unknown in the current document encoding "
2014                                     "(namely %1$s).\nThese glyphs are omitted "
2015                                     " from the output, which may result in "
2016                                     "incomplete output."
2017                                     "\n\nPlease select an appropriate "
2018                                     "document encoding\n"
2019                                     "(such as utf8) or change the "
2020                                     "preamble code accordingly."),
2021                                   uncodable_glyphs));
2022                 }
2023                 atlyxpreamble += user_preamble.str() + '\n';
2024         }
2025
2026         // footmisc must be loaded after setspace
2027         // Load it here to avoid clashes with footmisc loaded in the user
2028         // preamble. For that reason we also pass the options via
2029         // \PassOptionsToPackage in getPreamble() and not here.
2030         if (features.mustProvide("footmisc"))
2031                 atlyxpreamble += "\\usepackage{footmisc}\n";
2032
2033         // subfig loads internally the LaTeX package "caption". As
2034         // caption is a very popular package, users will load it in
2035         // the preamble. Therefore we must load subfig behind the
2036         // user-defined preamble and check if the caption package was
2037         // loaded or not. For the case that caption is loaded before
2038         // subfig, there is the subfig option "caption=false". This
2039         // option also works when a koma-script class is used and
2040         // koma's own caption commands are used instead of caption. We
2041         // use \PassOptionsToPackage here because the user could have
2042         // already loaded subfig in the preamble.
2043         if (features.isRequired("subfig")) {
2044                 atlyxpreamble += "\\@ifundefined{showcaptionsetup}{}{%\n"
2045                         " \\PassOptionsToPackage{caption=false}{subfig}}\n"
2046                         "\\usepackage{subfig}\n";
2047         }
2048
2049         // Itemize bullet settings need to be last in case the user
2050         // defines their own bullets that use a package included
2051         // in the user-defined preamble -- ARRae
2052         // Actually it has to be done much later than that
2053         // since some packages like frenchb make modifications
2054         // at \begin{document} time -- JMarc
2055         docstring bullets_def;
2056         for (int i = 0; i < 4; ++i) {
2057                 if (user_defined_bullet(i) != ITEMIZE_DEFAULTS[i]) {
2058                         if (bullets_def.empty())
2059                                 bullets_def += "\\AtBeginDocument{\n";
2060                         bullets_def += "  \\def\\labelitemi";
2061                         switch (i) {
2062                                 // `i' is one less than the item to modify
2063                         case 0:
2064                                 break;
2065                         case 1:
2066                                 bullets_def += 'i';
2067                                 break;
2068                         case 2:
2069                                 bullets_def += "ii";
2070                                 break;
2071                         case 3:
2072                                 bullets_def += 'v';
2073                                 break;
2074                         }
2075                         bullets_def += '{' +
2076                                 user_defined_bullet(i).getText()
2077                                 + "}\n";
2078                 }
2079         }
2080
2081         if (!bullets_def.empty())
2082                 atlyxpreamble += bullets_def + "}\n\n";
2083
2084         if (!atlyxpreamble.empty())
2085                 lyxpreamble += "\n\\makeatletter\n"
2086                         + atlyxpreamble + "\\makeatother\n\n";
2087
2088         // We try to load babel late, in case it interferes with other packages.
2089         // Jurabib, hyperref, varioref, bicaption and listings (bug 8995) have to be
2090         // called after babel, though.
2091         if (use_babel && !features.isRequired("jurabib")
2092             && !features.isRequired("hyperref")
2093                 && !features.isRequired("varioref")
2094             && !features.isRequired("vietnamese")
2095             && !features.isRequired("japanese")) {
2096                 // FIXME UNICODE
2097                 lyxpreamble += from_utf8(features.getBabelPresettings());
2098                 lyxpreamble += from_utf8(babelCall(language_options.str(),
2099                                                    features.needBabelLangOptions())) + '\n';
2100                 lyxpreamble += from_utf8(features.getBabelPostsettings());
2101         }
2102         if (features.isRequired("bicaption"))
2103                 lyxpreamble += "\\usepackage{bicaption}\n";
2104         if (!listings_params.empty() || features.isRequired("listings"))
2105                 lyxpreamble += "\\usepackage{listings}\n";
2106         if (!listings_params.empty()) {
2107                 lyxpreamble += "\\lstset{";
2108                 // do not test validity because listings_params is
2109                 // supposed to be valid
2110                 string par =
2111                         InsetListingsParams(listings_params).separatedParams(true);
2112                 lyxpreamble += from_utf8(par);
2113                 lyxpreamble += "}\n";
2114         }
2115
2116         // xunicode needs to be loaded at least after amsmath, amssymb,
2117         // esint and the other packages that provide special glyphs
2118         if (features.runparams().flavor == OutputParams::XETEX
2119             && useNonTeXFonts)
2120                 lyxpreamble += "\\usepackage{xunicode}\n";
2121
2122         // Polyglossia must be loaded last
2123         if (use_polyglossia) {
2124                 // call the package
2125                 lyxpreamble += "\\usepackage{polyglossia}\n";
2126                 // set the main language
2127                 lyxpreamble += "\\setdefaultlanguage";
2128                 if (!language->polyglossiaOpts().empty())
2129                         lyxpreamble += "[" + from_ascii(language->polyglossiaOpts()) + "]";
2130                 lyxpreamble += "{" + from_ascii(language->polyglossia()) + "}\n";
2131                 // now setup the other languages
2132                 std::map<std::string, std::string> const polylangs =
2133                         features.getPolyglossiaLanguages();
2134                 for (std::map<std::string, std::string>::const_iterator mit = polylangs.begin();
2135                      mit != polylangs.end() ; ++mit) {
2136                         lyxpreamble += "\\setotherlanguage";
2137                         if (!mit->second.empty())
2138                                 lyxpreamble += "[" + from_ascii(mit->second) + "]";
2139                         lyxpreamble += "{" + from_ascii(mit->first) + "}\n";
2140                 }
2141         }
2142
2143         // Load custom language package here
2144         if (features.langPackage() == LaTeXFeatures::LANG_PACK_CUSTOM) {
2145                 if (lang_package == "default")
2146                         lyxpreamble += from_utf8(lyxrc.language_custom_package);
2147                 else
2148                         lyxpreamble += from_utf8(lang_package);
2149                 lyxpreamble += '\n';
2150         }
2151
2152         docstring const i18npreamble =
2153                 features.getTClassI18nPreamble(use_babel, use_polyglossia);
2154         if (!i18npreamble.empty())
2155                 lyxpreamble += i18npreamble + '\n';
2156
2157         os << lyxpreamble;
2158
2159         return use_babel;
2160 }
2161
2162
2163 void BufferParams::useClassDefaults()
2164 {
2165         DocumentClass const & tclass = documentClass();
2166
2167         sides = tclass.sides();
2168         columns = tclass.columns();
2169         pagestyle = tclass.pagestyle();
2170         use_default_options = true;
2171         // Only if class has a ToC hierarchy
2172         if (tclass.hasTocLevels()) {
2173                 secnumdepth = tclass.secnumdepth();
2174                 tocdepth = tclass.tocdepth();
2175         }
2176 }
2177
2178
2179 bool BufferParams::hasClassDefaults() const
2180 {
2181         DocumentClass const & tclass = documentClass();
2182
2183         return sides == tclass.sides()
2184                 && columns == tclass.columns()
2185                 && pagestyle == tclass.pagestyle()
2186                 && use_default_options
2187                 && secnumdepth == tclass.secnumdepth()
2188                 && tocdepth == tclass.tocdepth();
2189 }
2190
2191
2192 DocumentClass const & BufferParams::documentClass() const
2193 {
2194         return *doc_class_.get();
2195 }
2196
2197
2198 DocumentClassConstPtr BufferParams::documentClassPtr() const
2199 {
2200         return doc_class_;
2201 }
2202
2203
2204 void BufferParams::setDocumentClass(DocumentClassConstPtr tc)
2205 {
2206         // evil, but this function is evil
2207         doc_class_ = const_pointer_cast<DocumentClass>(tc);
2208 }
2209
2210
2211 bool BufferParams::setBaseClass(string const & classname)
2212 {
2213         LYXERR(Debug::TCLASS, "setBaseClass: " << classname);
2214         LayoutFileList & bcl = LayoutFileList::get();
2215         if (!bcl.haveClass(classname)) {
2216                 docstring s =
2217                         bformat(_("The layout file:\n"
2218                                 "%1$s\n"
2219                                 "could not be found. A default textclass with default\n"
2220                                 "layouts will be used. LyX will not be able to produce\n"
2221                                 "correct output."),
2222                         from_utf8(classname));
2223                 frontend::Alert::error(_("Document class not found"), s);
2224                 bcl.addEmptyClass(classname);
2225         }
2226
2227         bool const success = bcl[classname].load();
2228         if (!success) {
2229                 docstring s =
2230                         bformat(_("Due to some error in it, the layout file:\n"
2231                                 "%1$s\n"
2232                                 "could not be loaded. A default textclass with default\n"
2233                                 "layouts will be used. LyX will not be able to produce\n"
2234                                 "correct output."),
2235                         from_utf8(classname));
2236                 frontend::Alert::error(_("Could not load class"), s);
2237                 bcl.addEmptyClass(classname);
2238         }
2239
2240         pimpl_->baseClass_ = classname;
2241         layout_modules_.adaptToBaseClass(baseClass(), removed_modules_);
2242         return true;
2243 }
2244
2245
2246 LayoutFile const * BufferParams::baseClass() const
2247 {
2248         if (LayoutFileList::get().haveClass(pimpl_->baseClass_))
2249                 return &(LayoutFileList::get()[pimpl_->baseClass_]);
2250         else
2251                 return 0;
2252 }
2253
2254
2255 LayoutFileIndex const & BufferParams::baseClassID() const
2256 {
2257         return pimpl_->baseClass_;
2258 }
2259
2260
2261 void BufferParams::makeDocumentClass(bool const clone)
2262 {
2263         if (!baseClass())
2264                 return;
2265
2266         LayoutModuleList mods;
2267         LayoutModuleList::iterator it = layout_modules_.begin();
2268         LayoutModuleList::iterator en = layout_modules_.end();
2269         for (; it != en; ++it)
2270                 mods.push_back(*it);
2271
2272         it = cite_engine_.begin();
2273         en = cite_engine_.end();
2274         for (; it != en; ++it)
2275                 mods.push_back(*it);
2276
2277         doc_class_ = getDocumentClass(*baseClass(), mods, clone);
2278
2279         TextClass::ReturnValues success = TextClass::OK;
2280         if (!forced_local_layout_.empty())
2281                 success = doc_class_->read(forced_local_layout_, TextClass::MODULE);
2282         if (!local_layout_.empty() &&
2283             (success == TextClass::OK || success == TextClass::OK_OLDFORMAT))
2284                 success = doc_class_->read(local_layout_, TextClass::MODULE);
2285         if (success != TextClass::OK && success != TextClass::OK_OLDFORMAT) {
2286                 docstring const msg = _("Error reading internal layout information");
2287                 frontend::Alert::warning(_("Read Error"), msg);
2288         }
2289 }
2290
2291
2292 bool BufferParams::layoutModuleCanBeAdded(string const & modName) const
2293 {
2294         return layout_modules_.moduleCanBeAdded(modName, baseClass());
2295 }
2296
2297
2298 bool BufferParams::citationModuleCanBeAdded(string const & modName) const
2299 {
2300         return cite_engine_.moduleCanBeAdded(modName, baseClass());
2301 }
2302
2303
2304 std::string BufferParams::getLocalLayout(bool forced) const
2305 {
2306         if (forced)
2307                 return doc_class_->forcedLayouts();
2308         else
2309                 return local_layout_;
2310 }
2311
2312
2313 void BufferParams::setLocalLayout(string const & layout, bool forced)
2314 {
2315         if (forced)
2316                 forced_local_layout_ = layout;
2317         else
2318                 local_layout_ = layout;
2319 }
2320
2321
2322 bool BufferParams::addLayoutModule(string const & modName)
2323 {
2324         LayoutModuleList::const_iterator it = layout_modules_.begin();
2325         LayoutModuleList::const_iterator end = layout_modules_.end();
2326         for (; it != end; ++it)
2327                 if (*it == modName)
2328                         return false;
2329         layout_modules_.push_back(modName);
2330         return true;
2331 }
2332
2333
2334 string BufferParams::bufferFormat() const
2335 {
2336         string format = documentClass().outputFormat();
2337         if (format == "latex") {
2338                 if (useNonTeXFonts)
2339                         return "xetex"; // actually "xetex or luatex"
2340                 if (encoding().package() == Encoding::japanese)
2341                         return "platex";
2342         }
2343         return format;
2344 }
2345
2346
2347 bool BufferParams::isExportable(string const & format) const
2348 {
2349         vector<string> backs = backends();
2350         for (vector<string>::const_iterator it = backs.begin();
2351              it != backs.end(); ++it)
2352                 if (theConverters().isReachable(*it, format))
2353                         return true;
2354         return false;
2355 }
2356
2357
2358 vector<Format const *> BufferParams::exportableFormats(bool only_viewable) const
2359 {
2360         vector<string> const backs = backends();
2361         set<string> excludes;
2362         if (useNonTeXFonts) {
2363                 excludes.insert("latex");
2364                 excludes.insert("pdflatex");
2365         }
2366         vector<Format const *> result =
2367                 theConverters().getReachable(backs[0], only_viewable, true, excludes);
2368         for (vector<string>::const_iterator it = backs.begin() + 1;
2369              it != backs.end(); ++it) {
2370                 vector<Format const *>  r =
2371                         theConverters().getReachable(*it, only_viewable, false, excludes);
2372                 result.insert(result.end(), r.begin(), r.end());
2373         }
2374         return result;
2375 }
2376
2377
2378 bool BufferParams::isExportableFormat(string const & format) const
2379 {
2380         typedef vector<Format const *> Formats;
2381         Formats formats;
2382         formats = exportableFormats(true);
2383         Formats::const_iterator fit = formats.begin();
2384         Formats::const_iterator end = formats.end();
2385         for (; fit != end ; ++fit) {
2386                 if ((*fit)->name() == format)
2387                         return true;
2388         }
2389         return false;
2390 }
2391
2392
2393 vector<string> BufferParams::backends() const
2394 {
2395         vector<string> v;
2396         string const buffmt = bufferFormat();
2397
2398         // FIXME: Don't hardcode format names here, but use a flag
2399         if (buffmt == "latex") {
2400                 if (!useNonTeXFonts) {
2401                         v.push_back("pdflatex");
2402                         v.push_back("latex");
2403                 }
2404                 v.push_back("luatex");
2405                 v.push_back("dviluatex");
2406                 v.push_back("xetex");
2407         } else if (buffmt == "xetex") {
2408                 v.push_back("xetex");
2409                 // FIXME: need to test all languages (bug 8205)
2410                 if (!language || !language->isPolyglossiaExclusive()) {
2411                         v.push_back("luatex");
2412                         v.push_back("dviluatex");
2413                 }
2414         } else
2415                 v.push_back(buffmt);
2416
2417         v.push_back("xhtml");
2418         v.push_back("text");
2419         v.push_back("lyx");
2420         return v;
2421 }
2422
2423
2424 OutputParams::FLAVOR BufferParams::getOutputFlavor(string const & format) const
2425 {
2426         string const dformat = (format.empty() || format == "default") ?
2427                 getDefaultOutputFormat() : format;
2428         DefaultFlavorCache::const_iterator it =
2429                 default_flavors_.find(dformat);
2430
2431         if (it != default_flavors_.end())
2432                 return it->second;
2433
2434         OutputParams::FLAVOR result = OutputParams::LATEX;
2435
2436         // FIXME It'd be better not to hardcode this, but to do
2437         //       something with formats.
2438         if (dformat == "xhtml")
2439                 result = OutputParams::HTML;
2440         else if (dformat == "text")
2441                 result = OutputParams::TEXT;
2442         else if (dformat == "lyx")
2443                 result = OutputParams::LYX;
2444         else if (dformat == "pdflatex")
2445                 result = OutputParams::PDFLATEX;
2446         else if (dformat == "xetex")
2447                 result = OutputParams::XETEX;
2448         else if (dformat == "luatex")
2449                 result = OutputParams::LUATEX;
2450         else if (dformat == "dviluatex")
2451                 result = OutputParams::DVILUATEX;
2452         else {
2453                 // Try to determine flavor of default output format
2454                 vector<string> backs = backends();
2455                 if (find(backs.begin(), backs.end(), dformat) == backs.end()) {
2456                         // Get shortest path to format
2457                         Graph::EdgePath path;
2458                         for (vector<string>::const_iterator it = backs.begin();
2459                             it != backs.end(); ++it) {
2460                                 Graph::EdgePath p = theConverters().getPath(*it, dformat);
2461                                 if (!p.empty() && (path.empty() || p.size() < path.size())) {
2462                                         path = p;
2463                                 }
2464                         }
2465                         if (!path.empty())
2466                                 result = theConverters().getFlavor(path);
2467                 }
2468         }
2469         // cache this flavor
2470         default_flavors_[dformat] = result;
2471         return result;
2472 }
2473
2474
2475 string BufferParams::getDefaultOutputFormat() const
2476 {
2477         if (!default_output_format.empty()
2478             && default_output_format != "default")
2479                 return default_output_format;
2480         if (isDocBook()
2481             || encoding().package() == Encoding::japanese) {
2482                 vector<Format const *> const formats = exportableFormats(true);
2483                 if (formats.empty())
2484                         return string();
2485                 // return the first we find
2486                 return formats.front()->name();
2487         }
2488         if (useNonTeXFonts)
2489                 return lyxrc.default_otf_view_format;
2490         return lyxrc.default_view_format;
2491 }
2492
2493 Font const BufferParams::getFont() const
2494 {
2495         FontInfo f = documentClass().defaultfont();
2496         if (fonts_default_family == "rmdefault")
2497                 f.setFamily(ROMAN_FAMILY);
2498         else if (fonts_default_family == "sfdefault")
2499                 f.setFamily(SANS_FAMILY);
2500         else if (fonts_default_family == "ttdefault")
2501                 f.setFamily(TYPEWRITER_FAMILY);
2502         return Font(f, language);
2503 }
2504
2505
2506 InsetQuotes::QuoteLanguage BufferParams::getQuoteStyle(string const & qs) const
2507 {
2508         return quoteslangtranslator().find(qs);
2509 }
2510
2511
2512 bool BufferParams::isLatex() const
2513 {
2514         return documentClass().outputType() == LATEX;
2515 }
2516
2517
2518 bool BufferParams::isLiterate() const
2519 {
2520         return documentClass().outputType() == LITERATE;
2521 }
2522
2523
2524 bool BufferParams::isDocBook() const
2525 {
2526         return documentClass().outputType() == DOCBOOK;
2527 }
2528
2529
2530 void BufferParams::readPreamble(Lexer & lex)
2531 {
2532         if (lex.getString() != "\\begin_preamble")
2533                 lyxerr << "Error (BufferParams::readPreamble):"
2534                         "consistency check failed." << endl;
2535
2536         preamble = lex.getLongString("\\end_preamble");
2537 }
2538
2539
2540 void BufferParams::readLocalLayout(Lexer & lex, bool forced)
2541 {
2542         string const expected = forced ? "\\begin_forced_local_layout" :
2543                                          "\\begin_local_layout";
2544         if (lex.getString() != expected)
2545                 lyxerr << "Error (BufferParams::readLocalLayout):"
2546                         "consistency check failed." << endl;
2547
2548         if (forced)
2549                 forced_local_layout_ =
2550                         lex.getLongString("\\end_forced_local_layout");
2551         else
2552                 local_layout_ = lex.getLongString("\\end_local_layout");
2553 }
2554
2555
2556 bool BufferParams::setLanguage(string const & lang)
2557 {
2558         Language const *new_language = languages.getLanguage(lang);
2559         if (!new_language) {
2560                 // Language lang was not found
2561                 return false;
2562         }
2563         language = new_language;
2564         return true;
2565 }
2566
2567
2568 void BufferParams::readLanguage(Lexer & lex)
2569 {
2570         if (!lex.next()) return;
2571
2572         string const tmptok = lex.getString();
2573
2574         // check if tmptok is part of tex_babel in tex-defs.h
2575         if (!setLanguage(tmptok)) {
2576                 // Language tmptok was not found
2577                 language = default_language;
2578                 lyxerr << "Warning: Setting language `"
2579                        << tmptok << "' to `" << language->lang()
2580                        << "'." << endl;
2581         }
2582 }
2583
2584
2585 void BufferParams::readGraphicsDriver(Lexer & lex)
2586 {
2587         if (!lex.next())
2588                 return;
2589
2590         string const tmptok = lex.getString();
2591         // check if tmptok is part of tex_graphics in tex_defs.h
2592         int n = 0;
2593         while (true) {
2594                 string const test = tex_graphics[n++];
2595
2596                 if (test == tmptok) {
2597                         graphics_driver = tmptok;
2598                         break;
2599                 }
2600                 if (test.empty()) {
2601                         lex.printError(
2602                                 "Warning: graphics driver `$$Token' not recognized!\n"
2603                                 "         Setting graphics driver to `default'.\n");
2604                         graphics_driver = "default";
2605                         break;
2606                 }
2607         }
2608 }
2609
2610
2611 void BufferParams::readBullets(Lexer & lex)
2612 {
2613         if (!lex.next())
2614                 return;
2615
2616         int const index = lex.getInteger();
2617         lex.next();
2618         int temp_int = lex.getInteger();
2619         user_defined_bullet(index).setFont(temp_int);
2620         temp_bullet(index).setFont(temp_int);
2621         lex >> temp_int;
2622         user_defined_bullet(index).setCharacter(temp_int);
2623         temp_bullet(index).setCharacter(temp_int);
2624         lex >> temp_int;
2625         user_defined_bullet(index).setSize(temp_int);
2626         temp_bullet(index).setSize(temp_int);
2627 }
2628
2629
2630 void BufferParams::readBulletsLaTeX(Lexer & lex)
2631 {
2632         // The bullet class should be able to read this.
2633         if (!lex.next())
2634                 return;
2635         int const index = lex.getInteger();
2636         lex.next(true);
2637         docstring const temp_str = lex.getDocString();
2638
2639         user_defined_bullet(index).setText(temp_str);
2640         temp_bullet(index).setText(temp_str);
2641 }
2642
2643
2644 void BufferParams::readModules(Lexer & lex)
2645 {
2646         if (!lex.eatLine()) {
2647                 lyxerr << "Error (BufferParams::readModules):"
2648                                 "Unexpected end of input." << endl;
2649                 return;
2650         }
2651         while (true) {
2652                 string mod = lex.getString();
2653                 if (mod == "\\end_modules")
2654                         break;
2655                 addLayoutModule(mod);
2656                 lex.eatLine();
2657         }
2658 }
2659
2660
2661 void BufferParams::readRemovedModules(Lexer & lex)
2662 {
2663         if (!lex.eatLine()) {
2664                 lyxerr << "Error (BufferParams::readRemovedModules):"
2665                                 "Unexpected end of input." << endl;
2666                 return;
2667         }
2668         while (true) {
2669                 string mod = lex.getString();
2670                 if (mod == "\\end_removed_modules")
2671                         break;
2672                 removed_modules_.push_back(mod);
2673                 lex.eatLine();
2674         }
2675         // now we want to remove any removed modules that were previously
2676         // added. normally, that will be because default modules were added in
2677         // setBaseClass(), which gets called when \textclass is read at the
2678         // start of the read.
2679         list<string>::const_iterator rit = removed_modules_.begin();
2680         list<string>::const_iterator const ren = removed_modules_.end();
2681         for (; rit != ren; ++rit) {
2682                 LayoutModuleList::iterator const mit = layout_modules_.begin();
2683                 LayoutModuleList::iterator const men = layout_modules_.end();
2684                 LayoutModuleList::iterator found = find(mit, men, *rit);
2685                 if (found == men)
2686                         continue;
2687                 layout_modules_.erase(found);
2688         }
2689 }
2690
2691
2692 void BufferParams::readIncludeonly(Lexer & lex)
2693 {
2694         if (!lex.eatLine()) {
2695                 lyxerr << "Error (BufferParams::readIncludeonly):"
2696                                 "Unexpected end of input." << endl;
2697                 return;
2698         }
2699         while (true) {
2700                 string child = lex.getString();
2701                 if (child == "\\end_includeonly")
2702                         break;
2703                 included_children_.push_back(child);
2704                 lex.eatLine();
2705         }
2706 }
2707
2708
2709 string BufferParams::paperSizeName(PapersizePurpose purpose) const
2710 {
2711         switch (papersize) {
2712         case PAPER_DEFAULT:
2713                 // could be anything, so don't guess
2714                 return string();
2715         case PAPER_CUSTOM: {
2716                 if (purpose == XDVI && !paperwidth.empty() &&
2717                     !paperheight.empty()) {
2718                         // heightxwidth<unit>
2719                         string first = paperwidth;
2720                         string second = paperheight;
2721                         if (orientation == ORIENTATION_LANDSCAPE)
2722                                 first.swap(second);
2723                         // cut off unit.
2724                         return first.erase(first.length() - 2)
2725                                 + "x" + second;
2726                 }
2727                 return string();
2728         }
2729         case PAPER_A0:
2730                 // dvips and dvipdfm do not know this
2731                 if (purpose == DVIPS || purpose == DVIPDFM)
2732                         return string();
2733                 return "a0";
2734         case PAPER_A1:
2735                 if (purpose == DVIPS || purpose == DVIPDFM)
2736                         return string();
2737                 return "a1";
2738         case PAPER_A2:
2739                 if (purpose == DVIPS || purpose == DVIPDFM)
2740                         return string();
2741                 return "a2";
2742         case PAPER_A3:
2743                 return "a3";
2744         case PAPER_A4:
2745                 return "a4";
2746         case PAPER_A5:
2747                 return "a5";
2748         case PAPER_A6:
2749                 if (purpose == DVIPS || purpose == DVIPDFM)
2750                         return string();
2751                 return "a6";
2752         case PAPER_B0:
2753                 if (purpose == DVIPS || purpose == DVIPDFM)
2754                         return string();
2755                 return "b0";
2756         case PAPER_B1:
2757                 if (purpose == DVIPS || purpose == DVIPDFM)
2758                         return string();
2759                 return "b1";
2760         case PAPER_B2:
2761                 if (purpose == DVIPS || purpose == DVIPDFM)
2762                         return string();
2763                 return "b2";
2764         case PAPER_B3:
2765                 if (purpose == DVIPS || purpose == DVIPDFM)
2766                         return string();
2767                 return "b3";
2768         case PAPER_B4:
2769                 // dvipdfm does not know this
2770                 if (purpose == DVIPDFM)
2771                         return string();
2772                 return "b4";
2773         case PAPER_B5:
2774                 if (purpose == DVIPDFM)
2775                         return string();
2776                 return "b5";
2777         case PAPER_B6:
2778                 if (purpose == DVIPS || purpose == DVIPDFM)
2779                         return string();
2780                 return "b6";
2781         case PAPER_C0:
2782                 if (purpose == DVIPS || purpose == DVIPDFM)
2783                         return string();
2784                 return "c0";
2785         case PAPER_C1:
2786                 if (purpose == DVIPS || purpose == DVIPDFM)
2787                         return string();
2788                 return "c1";
2789         case PAPER_C2:
2790                 if (purpose == DVIPS || purpose == DVIPDFM)
2791                         return string();
2792                 return "c2";
2793         case PAPER_C3:
2794                 if (purpose == DVIPS || purpose == DVIPDFM)
2795                         return string();
2796                 return "c3";
2797         case PAPER_C4:
2798                 if (purpose == DVIPS || purpose == DVIPDFM)
2799                         return string();
2800                 return "c4";
2801         case PAPER_C5:
2802                 if (purpose == DVIPS || purpose == DVIPDFM)
2803                         return string();
2804                 return "c5";
2805         case PAPER_C6:
2806                 if (purpose == DVIPS || purpose == DVIPDFM)
2807                         return string();
2808                 return "c6";
2809         case PAPER_JISB0:
2810                 if (purpose == DVIPS || purpose == DVIPDFM)
2811                         return string();
2812                 return "jisb0";
2813         case PAPER_JISB1:
2814                 if (purpose == DVIPS || purpose == DVIPDFM)
2815                         return string();
2816                 return "jisb1";
2817         case PAPER_JISB2:
2818                 if (purpose == DVIPS || purpose == DVIPDFM)
2819                         return string();
2820                 return "jisb2";
2821         case PAPER_JISB3:
2822                 if (purpose == DVIPS || purpose == DVIPDFM)
2823                         return string();
2824                 return "jisb3";
2825         case PAPER_JISB4:
2826                 if (purpose == DVIPS || purpose == DVIPDFM)
2827                         return string();
2828                 return "jisb4";
2829         case PAPER_JISB5:
2830                 if (purpose == DVIPS || purpose == DVIPDFM)
2831                         return string();
2832                 return "jisb5";
2833         case PAPER_JISB6:
2834                 if (purpose == DVIPS || purpose == DVIPDFM)
2835                         return string();
2836                 return "jisb6";
2837         case PAPER_USEXECUTIVE:
2838                 // dvipdfm does not know this
2839                 if (purpose == DVIPDFM)
2840                         return string();
2841                 return "foolscap";
2842         case PAPER_USLEGAL:
2843                 return "legal";
2844         case PAPER_USLETTER:
2845         default:
2846                 if (purpose == XDVI)
2847                         return "us";
2848                 return "letter";
2849         }
2850 }
2851
2852
2853 string const BufferParams::dvips_options() const
2854 {
2855         string result;
2856
2857         // If the class loads the geometry package, we do not know which
2858         // paper size is used, since we do not set it (bug 7013).
2859         // Therefore we must not specify any argument here.
2860         // dvips gets the correct paper size via DVI specials in this case
2861         // (if the class uses the geometry package correctly).
2862         if (documentClass().provides("geometry"))
2863                 return result;
2864
2865         if (use_geometry
2866             && papersize == PAPER_CUSTOM
2867             && !lyxrc.print_paper_dimension_flag.empty()
2868             && !paperwidth.empty()
2869             && !paperheight.empty()) {
2870                 // using a custom papersize
2871                 result = lyxrc.print_paper_dimension_flag;
2872                 result += ' ' + paperwidth;
2873                 result += ',' + paperheight;
2874         } else {
2875                 string const paper_option = paperSizeName(DVIPS);
2876                 if (!paper_option.empty() && (paper_option != "letter" ||
2877                     orientation != ORIENTATION_LANDSCAPE)) {
2878                         // dvips won't accept -t letter -t landscape.
2879                         // In all other cases, include the paper size
2880                         // explicitly.
2881                         result = lyxrc.print_paper_flag;
2882                         result += ' ' + paper_option;
2883                 }
2884         }
2885         if (orientation == ORIENTATION_LANDSCAPE &&
2886             papersize != PAPER_CUSTOM)
2887                 result += ' ' + lyxrc.print_landscape_flag;
2888         return result;
2889 }
2890
2891
2892 string const BufferParams::font_encoding() const
2893 {
2894         return font_encodings().empty() ? "default" : font_encodings().back();
2895 }
2896
2897
2898 vector<string> const BufferParams::font_encodings() const
2899 {
2900         string doc_fontenc = (fontenc == "global") ? lyxrc.fontenc : fontenc;
2901
2902         vector<string> fontencs;
2903
2904         // "default" means "no explicit font encoding"
2905         if (doc_fontenc != "default") {
2906                 fontencs = getVectorFromString(doc_fontenc);
2907                 if (!language->fontenc().empty()
2908                     && ascii_lowercase(language->fontenc()) != "none") {
2909                         vector<string> fencs = getVectorFromString(language->fontenc());
2910                         vector<string>::const_iterator fit = fencs.begin();
2911                         for (; fit != fencs.end(); ++fit) {
2912                                 if (find(fontencs.begin(), fontencs.end(), *fit) == fontencs.end())
2913                                         fontencs.push_back(*fit);
2914                         }
2915                 }
2916         }
2917
2918         return fontencs;
2919 }
2920
2921
2922 string BufferParams::babelCall(string const & lang_opts, bool const langoptions) const
2923 {
2924         // suppress the babel call if there is no BabelName defined
2925         // for the document language in the lib/languages file and if no
2926         // other languages are used (lang_opts is then empty)
2927         if (lang_opts.empty())
2928                 return string();
2929         // either a specific language (AsBabelOptions setting in
2930         // lib/languages) or the prefs require the languages to
2931         // be submitted to babel itself (not the class).
2932         if (langoptions)
2933                 return "\\usepackage[" + lang_opts + "]{babel}";
2934         return "\\usepackage{babel}";
2935 }
2936
2937
2938 docstring BufferParams::getGraphicsDriver(string const & package) const
2939 {
2940         docstring result;
2941
2942         if (package == "geometry") {
2943                 if (graphics_driver == "dvips"
2944                     || graphics_driver == "dvipdfm"
2945                     || graphics_driver == "pdftex"
2946                     || graphics_driver == "vtex")
2947                         result = from_ascii(graphics_driver);
2948                 else if (graphics_driver == "dvipdfmx")
2949                         result = from_ascii("dvipdfm");
2950         }
2951
2952         return result;
2953 }
2954
2955
2956 void BufferParams::writeEncodingPreamble(otexstream & os,
2957                                          LaTeXFeatures & features) const
2958 {
2959         // XeTeX/LuaTeX: (see also #9740)
2960         // With Unicode fonts we use utf8-plain without encoding package.
2961         // With TeX fonts, we cannot use utf8-plain, but "inputenc" fails.
2962         // XeTeX must use ASCII encoding, for LuaTeX, we load
2963         // "luainputenc" (see below).
2964         if (useNonTeXFonts || features.runparams().flavor == OutputParams::XETEX)
2965                 return;
2966
2967         if (inputenc == "auto") {
2968                 string const doc_encoding =
2969                         language->encoding()->latexName();
2970                 Encoding::Package const package =
2971                         language->encoding()->package();
2972
2973                 // Create list of inputenc options:
2974                 set<string> encodings;
2975                 // luainputenc fails with more than one encoding
2976                 if (!features.runparams().isFullUnicode()) // if we reach this point, this means LuaTeX with TeX fonts
2977                         // list all input encodings used in the document
2978                         encodings = features.getEncodingSet(doc_encoding);
2979
2980                 // If the "japanese" package (i.e. pLaTeX) is used,
2981                 // inputenc must be omitted.
2982                 // see http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg129680.html
2983                 if ((!encodings.empty() || package == Encoding::inputenc)
2984                     && !features.isRequired("japanese")
2985                     && !features.isProvided("inputenc")) {
2986                         os << "\\usepackage[";
2987                         set<string>::const_iterator it = encodings.begin();
2988                         set<string>::const_iterator const end = encodings.end();
2989                         if (it != end) {
2990                                 os << from_ascii(*it);
2991                                 ++it;
2992                         }
2993                         for (; it != end; ++it)
2994                                 os << ',' << from_ascii(*it);
2995                         if (package == Encoding::inputenc) {
2996                                 if (!encodings.empty())
2997                                         os << ',';
2998                                 os << from_ascii(doc_encoding);
2999                         }
3000                         if (features.runparams().flavor == OutputParams::LUATEX
3001                             || features.runparams().flavor == OutputParams::DVILUATEX)
3002                                 os << "]{luainputenc}\n";
3003                         else
3004                                 os << "]{inputenc}\n";
3005                 }
3006                 if (package == Encoding::CJK || features.mustProvide("CJK")) {
3007                         if (language->encoding()->name() == "utf8-cjk"
3008                             && LaTeXFeatures::isAvailable("CJKutf8"))
3009                                 os << "\\usepackage{CJKutf8}\n";
3010                         else
3011                                 os << "\\usepackage{CJK}\n";
3012                 }
3013         } else if (inputenc != "default") {
3014                 switch (encoding().package()) {
3015                 case Encoding::none:
3016                 case Encoding::japanese:
3017                         break;
3018                 case Encoding::inputenc:
3019                         // do not load inputenc if japanese is used
3020                         // or if the class provides inputenc
3021                         if (features.isRequired("japanese")
3022                             || features.isProvided("inputenc"))
3023                                 break;
3024                         os << "\\usepackage[" << from_ascii(encoding().latexName());
3025                         if (features.runparams().flavor == OutputParams::LUATEX
3026                             || features.runparams().flavor == OutputParams::DVILUATEX)
3027                                 os << "]{luainputenc}\n";
3028                         else
3029                                 os << "]{inputenc}\n";
3030                         break;
3031                 case Encoding::CJK:
3032                         if (encoding().name() == "utf8-cjk"
3033                             && LaTeXFeatures::isAvailable("CJKutf8"))
3034                                 os << "\\usepackage{CJKutf8}\n";
3035                         else
3036                                 os << "\\usepackage{CJK}\n";
3037                         break;
3038                 }
3039                 // Load the CJK package if needed by a secondary language.
3040                 // If the main encoding is some variant of UTF8, use CJKutf8.
3041                 if (encoding().package() != Encoding::CJK && features.mustProvide("CJK")) {
3042                         if (encoding().iconvName() == "UTF-8"
3043                             && LaTeXFeatures::isAvailable("CJKutf8"))
3044                                 os << "\\usepackage{CJKutf8}\n";
3045                         else
3046                                 os << "\\usepackage{CJK}\n";
3047                 }
3048         }
3049 }
3050
3051
3052 string const BufferParams::parseFontName(string const & name) const
3053 {
3054         string mangled = name;
3055         size_t const idx = mangled.find('[');
3056         if (idx == string::npos || idx == 0)
3057                 return mangled;
3058         else
3059                 return mangled.substr(0, idx - 1);
3060 }
3061
3062
3063 string const BufferParams::loadFonts(LaTeXFeatures & features) const
3064 {
3065         if (fontsRoman() == "default" && fontsSans() == "default"
3066             && fontsTypewriter() == "default"
3067             && (fontsMath() == "default" || fontsMath() == "auto"))
3068                 //nothing to do
3069                 return string();
3070
3071         ostringstream os;
3072
3073         /* Fontspec (XeTeX, LuaTeX): we provide GUI support for oldstyle
3074          * numbers (Numbers=OldStyle) and sf/tt scaling. The Ligatures=TeX/
3075          * Mapping=tex-text option assures TeX ligatures (such as "--")
3076          * are resolved. Note that tt does not use these ligatures.
3077          * TODO:
3078          *    -- add more GUI options?
3079          *    -- add more fonts (fonts for other scripts)
3080          *    -- if there's a way to find out if a font really supports
3081          *       OldStyle, enable/disable the widget accordingly.
3082         */
3083         if (useNonTeXFonts && features.isAvailable("fontspec")) {
3084                 // "Mapping=tex-text" and "Ligatures=TeX" are equivalent.
3085                 // However, until v.2 (2010/07/11) fontspec only knew
3086                 // Mapping=tex-text (for XeTeX only); then "Ligatures=TeX"
3087                 // was introduced for both XeTeX and LuaTeX (LuaTeX
3088                 // didn't understand "Mapping=tex-text", while XeTeX
3089                 // understood both. With most recent versions, both
3090                 // variants are understood by both engines. However,
3091                 // we want to provide support for at least TeXLive 2009
3092                 // (for XeTeX; LuaTeX is only supported as of v.2)
3093                 string const texmapping =
3094                         (features.runparams().flavor == OutputParams::XETEX) ?
3095                         "Mapping=tex-text" : "Ligatures=TeX";
3096                 if (fontsRoman() != "default") {
3097                         os << "\\setmainfont[" << texmapping;
3098                         if (fonts_old_figures)
3099                                 os << ",Numbers=OldStyle";
3100                         os << "]{" << parseFontName(fontsRoman()) << "}\n";
3101                 }
3102                 if (fontsSans() != "default") {
3103                         string const sans = parseFontName(fontsSans());
3104                         if (fontsSansScale() != 100)
3105                                 os << "\\setsansfont[Scale="
3106                                    << float(fontsSansScale()) / 100
3107                                    << "," << texmapping << "]{"
3108                                    << sans << "}\n";
3109                         else
3110                                 os << "\\setsansfont[" << texmapping << "]{"
3111                                    << sans << "}\n";
3112                 }
3113                 if (fontsTypewriter() != "default") {
3114                         string const mono = parseFontName(fontsTypewriter());
3115                         if (fontsTypewriterScale() != 100)
3116                                 os << "\\setmonofont[Scale="
3117                                    << float(fontsTypewriterScale()) / 100
3118                                    << "]{"
3119                                    << mono << "}\n";
3120                         else
3121                                 os << "\\setmonofont{"
3122                                    << mono << "}\n";
3123                 }
3124                 return os.str();
3125         }
3126
3127         // Tex Fonts
3128         bool const ot1 = (font_encoding() == "default" || font_encoding() == "OT1");
3129         bool const dryrun = features.runparams().dryrun;
3130         bool const complete = (fontsSans() == "default" && fontsTypewriter() == "default");
3131         bool const nomath = (fontsMath() == "default");
3132
3133         // ROMAN FONTS
3134         os << theLaTeXFonts().getLaTeXFont(from_ascii(fontsRoman())).getLaTeXCode(
3135                 dryrun, ot1, complete, fonts_expert_sc, fonts_old_figures,
3136                 nomath);
3137
3138         // SANS SERIF
3139         os << theLaTeXFonts().getLaTeXFont(from_ascii(fontsSans())).getLaTeXCode(
3140                 dryrun, ot1, complete, fonts_expert_sc, fonts_old_figures,
3141                 nomath, fontsSansScale());
3142
3143         // MONOSPACED/TYPEWRITER
3144         os << theLaTeXFonts().getLaTeXFont(from_ascii(fontsTypewriter())).getLaTeXCode(
3145                 dryrun, ot1, complete, fonts_expert_sc, fonts_old_figures,
3146                 nomath, fontsTypewriterScale());
3147
3148         // MATH
3149         os << theLaTeXFonts().getLaTeXFont(from_ascii(fontsMath())).getLaTeXCode(
3150                 dryrun, ot1, complete, fonts_expert_sc, fonts_old_figures,
3151                 nomath);
3152
3153         return os.str();
3154 }
3155
3156
3157 Encoding const & BufferParams::encoding() const
3158 {
3159         // Main encoding for LaTeX output.
3160         //
3161         // Exception: XeTeX with 8-bit TeX fonts requires ASCII (see #9740).
3162         // As the "flavor" is only known once export started, this
3163         // cannot be handled here. Instead, runparams.encoding is set
3164         // to ASCII in Buffer::makeLaTeXFile (for export)
3165         // and Buffer::writeLaTeXSource (for preview).
3166         if (useNonTeXFonts)
3167                 return *(encodings.fromLyXName("utf8-plain"));
3168         if (inputenc == "auto" || inputenc == "default")
3169                 return *language->encoding();
3170         Encoding const * const enc = encodings.fromLyXName(inputenc);
3171         if (enc)
3172                 return *enc;
3173         LYXERR0("Unknown inputenc value `" << inputenc
3174                << "'. Using `auto' instead.");
3175         return *language->encoding();
3176 }
3177
3178
3179 bool BufferParams::addCiteEngine(string const & engine)
3180 {
3181         LayoutModuleList::const_iterator it = cite_engine_.begin();
3182         LayoutModuleList::const_iterator en = cite_engine_.end();
3183         for (; it != en; ++it)
3184                 if (*it == engine)
3185                         return false;
3186         cite_engine_.push_back(engine);
3187         return true;
3188 }
3189
3190
3191 bool BufferParams::addCiteEngine(vector<string> const & engine)
3192 {
3193         vector<string>::const_iterator it = engine.begin();
3194         vector<string>::const_iterator en = engine.end();
3195         bool ret = true;
3196         for (; it != en; ++it)
3197                 if (!addCiteEngine(*it))
3198                         ret = false;
3199         return ret;
3200 }
3201
3202
3203 string const & BufferParams::defaultBiblioStyle() const
3204 {
3205         return documentClass().defaultBiblioStyle();
3206 }
3207
3208
3209 bool const & BufferParams::fullAuthorList() const
3210 {
3211         return documentClass().fullAuthorList();
3212 }
3213
3214
3215 void BufferParams::setCiteEngine(string const & engine)
3216 {
3217         clearCiteEngine();
3218         addCiteEngine(engine);
3219 }
3220
3221
3222 void BufferParams::setCiteEngine(vector<string> const & engine)
3223 {
3224         clearCiteEngine();
3225         addCiteEngine(engine);
3226 }
3227
3228
3229 vector<string> BufferParams::citeCommands() const
3230 {
3231         static CitationStyle const default_style;
3232         vector<string> commands =
3233                 documentClass().citeCommands(citeEngineType());
3234         if (commands.empty())
3235                 commands.push_back(default_style.cmd);
3236         return commands;
3237 }
3238
3239
3240 vector<CitationStyle> BufferParams::citeStyles() const
3241 {
3242         static CitationStyle const default_style;
3243         vector<CitationStyle> styles =
3244                 documentClass().citeStyles(citeEngineType());
3245         if (styles.empty())
3246                 styles.push_back(default_style);
3247         return styles;
3248 }
3249
3250 } // namespace lyx