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
1019         // use realPath() instead of absFileName() for comparing
1020         // so we can catch also eventually used symbolic parts of the path.
1021         string filepath = buf->fileName().onlyPath().realPath();
1022         string const sysdir = package().system_support().realPath();
1023         if (prefixIs(filepath, sysdir)) {
1024                 filepath.replace(0, sysdir.length(), "/systemlyxdir/");
1025                 // Remove eventually added superfluous "/"
1026                 filepath = subst(filepath, "//", "/");
1027         }
1028         else if (!lyxrc.save_origin)
1029                 filepath = "unavailable";
1030         os << "\\origin " << quoteIfNeeded(filepath) << '\n';
1031
1032         // the textclass
1033         os << "\\textclass "
1034            << quoteIfNeeded(buf->includedFilePath(addName(buf->layoutPos(),
1035                                                 baseClass()->name()), "layout"))
1036            << '\n';
1037
1038         // then the preamble
1039         if (!preamble.empty()) {
1040                 // remove '\n' from the end of preamble
1041                 string const tmppreamble = rtrim(preamble, "\n");
1042                 os << "\\begin_preamble\n"
1043                    << tmppreamble
1044                    << "\n\\end_preamble\n";
1045         }
1046
1047         // the options
1048         if (!options.empty()) {
1049                 os << "\\options " << options << '\n';
1050         }
1051
1052         // use the class options defined in the layout?
1053         os << "\\use_default_options "
1054            << convert<string>(use_default_options) << "\n";
1055
1056         // the master document
1057         if (!master.empty()) {
1058                 os << "\\master " << master << '\n';
1059         }
1060
1061         // removed modules
1062         if (!removed_modules_.empty()) {
1063                 os << "\\begin_removed_modules" << '\n';
1064                 list<string>::const_iterator it = removed_modules_.begin();
1065                 list<string>::const_iterator en = removed_modules_.end();
1066                 for (; it != en; ++it)
1067                         os << *it << '\n';
1068                 os << "\\end_removed_modules" << '\n';
1069         }
1070
1071         // the modules
1072         if (!layout_modules_.empty()) {
1073                 os << "\\begin_modules" << '\n';
1074                 LayoutModuleList::const_iterator it = layout_modules_.begin();
1075                 LayoutModuleList::const_iterator en = layout_modules_.end();
1076                 for (; it != en; ++it)
1077                         os << *it << '\n';
1078                 os << "\\end_modules" << '\n';
1079         }
1080
1081         // includeonly
1082         if (!included_children_.empty()) {
1083                 os << "\\begin_includeonly" << '\n';
1084                 list<string>::const_iterator it = included_children_.begin();
1085                 list<string>::const_iterator en = included_children_.end();
1086                 for (; it != en; ++it)
1087                         os << *it << '\n';
1088                 os << "\\end_includeonly" << '\n';
1089         }
1090         os << "\\maintain_unincluded_children "
1091            << convert<string>(maintain_unincluded_children) << '\n';
1092
1093         // local layout information
1094         string const local_layout = getLocalLayout(false);
1095         if (!local_layout.empty()) {
1096                 // remove '\n' from the end
1097                 string const tmplocal = rtrim(local_layout, "\n");
1098                 os << "\\begin_local_layout\n"
1099                    << tmplocal
1100                    << "\n\\end_local_layout\n";
1101         }
1102         string const forced_local_layout = getLocalLayout(true);
1103         if (!forced_local_layout.empty()) {
1104                 // remove '\n' from the end
1105                 string const tmplocal = rtrim(forced_local_layout, "\n");
1106                 os << "\\begin_forced_local_layout\n"
1107                    << tmplocal
1108                    << "\n\\end_forced_local_layout\n";
1109         }
1110
1111         // then the text parameters
1112         if (language != ignore_language)
1113                 os << "\\language " << language->lang() << '\n';
1114         os << "\\language_package " << lang_package
1115            << "\n\\inputencoding " << inputenc
1116            << "\n\\fontencoding " << fontenc
1117            << "\n\\font_roman \"" << fonts_roman[0]
1118            << "\" \"" << fonts_roman[1] << '"'
1119            << "\n\\font_sans \"" << fonts_sans[0]
1120            << "\" \"" << fonts_sans[1] << '"'
1121            << "\n\\font_typewriter \"" << fonts_typewriter[0]
1122            << "\" \"" << fonts_typewriter[1] << '"'
1123            << "\n\\font_math \"" << fonts_math[0]
1124            << "\" \"" << fonts_math[1] << '"'
1125            << "\n\\font_default_family " << fonts_default_family
1126            << "\n\\use_non_tex_fonts " << convert<string>(useNonTeXFonts)
1127            << "\n\\font_sc " << convert<string>(fonts_expert_sc)
1128            << "\n\\font_osf " << convert<string>(fonts_old_figures)
1129            << "\n\\font_sf_scale " << fonts_sans_scale[0]
1130            << ' ' << fonts_sans_scale[1]
1131            << "\n\\font_tt_scale " << fonts_typewriter_scale[0]
1132            << ' ' << fonts_typewriter_scale[1]
1133            << '\n';
1134         if (!fonts_cjk.empty()) {
1135                 os << "\\font_cjk " << fonts_cjk << '\n';
1136         }
1137         os << "\\graphics " << graphics_driver << '\n';
1138         os << "\\default_output_format " << default_output_format << '\n';
1139         os << "\\output_sync " << output_sync << '\n';
1140         if (!output_sync_macro.empty())
1141                 os << "\\output_sync_macro \"" << output_sync_macro << "\"\n";
1142         os << "\\bibtex_command " << bibtex_command << '\n';
1143         os << "\\index_command " << index_command << '\n';
1144
1145         if (!float_placement.empty()) {
1146                 os << "\\float_placement " << float_placement << '\n';
1147         }
1148         os << "\\paperfontsize " << fontsize << '\n';
1149
1150         spacing().writeFile(os);
1151         pdfoptions().writeFile(os);
1152
1153         os << "\\papersize " << string_papersize[papersize]
1154            << "\n\\use_geometry " << convert<string>(use_geometry);
1155         map<string, string> const & packages = auto_packages();
1156         for (map<string, string>::const_iterator it = packages.begin();
1157              it != packages.end(); ++it)
1158                 os << "\n\\use_package " << it->first << ' '
1159                    << use_package(it->first);
1160
1161         os << "\n\\cite_engine ";
1162
1163         if (!cite_engine_.empty()) {
1164                 LayoutModuleList::const_iterator be = cite_engine_.begin();
1165                 LayoutModuleList::const_iterator en = cite_engine_.end();
1166                 for (LayoutModuleList::const_iterator it = be; it != en; ++it) {
1167                         if (it != be)
1168                                 os << ',';
1169                         os << *it;
1170                 }
1171         } else {
1172                 os << "basic";
1173         }
1174
1175         os << "\n\\cite_engine_type " << citeenginetypetranslator().find(cite_engine_type_)
1176            << "\n\\biblio_style " << biblio_style
1177            << "\n\\use_bibtopic " << convert<string>(use_bibtopic)
1178            << "\n\\use_indices " << convert<string>(use_indices)
1179            << "\n\\paperorientation " << string_orientation[orientation]
1180            << "\n\\suppress_date " << convert<string>(suppress_date)
1181            << "\n\\justification " << convert<string>(justification)
1182            << "\n\\use_refstyle " << use_refstyle
1183            << '\n';
1184         if (isbackgroundcolor == true)
1185                 os << "\\backgroundcolor " << lyx::X11hexname(backgroundcolor) << '\n';
1186         if (isfontcolor == true)
1187                 os << "\\fontcolor " << lyx::X11hexname(fontcolor) << '\n';
1188         if (notefontcolor != lyx::rgbFromHexName("#cccccc"))
1189                 os << "\\notefontcolor " << lyx::X11hexname(notefontcolor) << '\n';
1190         if (boxbgcolor != lyx::rgbFromHexName("#ff0000"))
1191                 os << "\\boxbgcolor " << lyx::X11hexname(boxbgcolor) << '\n';
1192
1193         BranchList::const_iterator it = branchlist().begin();
1194         BranchList::const_iterator end = branchlist().end();
1195         for (; it != end; ++it) {
1196                 os << "\\branch " << to_utf8(it->branch())
1197                    << "\n\\selected " << it->isSelected()
1198                    << "\n\\filename_suffix " << it->hasFileNameSuffix()
1199                    << "\n\\color " << lyx::X11hexname(it->color())
1200                    << "\n\\end_branch"
1201                    << "\n";
1202         }
1203
1204         IndicesList::const_iterator iit = indiceslist().begin();
1205         IndicesList::const_iterator iend = indiceslist().end();
1206         for (; iit != iend; ++iit) {
1207                 os << "\\index " << to_utf8(iit->index())
1208                    << "\n\\shortcut " << to_utf8(iit->shortcut())
1209                    << "\n\\color " << lyx::X11hexname(iit->color())
1210                    << "\n\\end_index"
1211                    << "\n";
1212         }
1213
1214         if (!paperwidth.empty())
1215                 os << "\\paperwidth "
1216                    << VSpace(paperwidth).asLyXCommand() << '\n';
1217         if (!paperheight.empty())
1218                 os << "\\paperheight "
1219                    << VSpace(paperheight).asLyXCommand() << '\n';
1220         if (!leftmargin.empty())
1221                 os << "\\leftmargin "
1222                    << VSpace(leftmargin).asLyXCommand() << '\n';
1223         if (!topmargin.empty())
1224                 os << "\\topmargin "
1225                    << VSpace(topmargin).asLyXCommand() << '\n';
1226         if (!rightmargin.empty())
1227                 os << "\\rightmargin "
1228                    << VSpace(rightmargin).asLyXCommand() << '\n';
1229         if (!bottommargin.empty())
1230                 os << "\\bottommargin "
1231                    << VSpace(bottommargin).asLyXCommand() << '\n';
1232         if (!headheight.empty())
1233                 os << "\\headheight "
1234                    << VSpace(headheight).asLyXCommand() << '\n';
1235         if (!headsep.empty())
1236                 os << "\\headsep "
1237                    << VSpace(headsep).asLyXCommand() << '\n';
1238         if (!footskip.empty())
1239                 os << "\\footskip "
1240                    << VSpace(footskip).asLyXCommand() << '\n';
1241         if (!columnsep.empty())
1242                 os << "\\columnsep "
1243                          << VSpace(columnsep).asLyXCommand() << '\n';
1244         os << "\\secnumdepth " << secnumdepth
1245            << "\n\\tocdepth " << tocdepth
1246            << "\n\\paragraph_separation "
1247            << string_paragraph_separation[paragraph_separation];
1248         if (!paragraph_separation)
1249                 os << "\n\\paragraph_indentation " << getIndentation().asLyXCommand();
1250         else
1251                 os << "\n\\defskip " << getDefSkip().asLyXCommand();
1252         os << "\n\\quotes_language "
1253            << string_quotes_language[quotes_language]
1254            << "\n\\papercolumns " << columns
1255            << "\n\\papersides " << sides
1256            << "\n\\paperpagestyle " << pagestyle << '\n';
1257         if (!listings_params.empty())
1258                 os << "\\listings_params \"" <<
1259                         InsetListingsParams(listings_params).encodedString() << "\"\n";
1260         for (int i = 0; i < 4; ++i) {
1261                 if (user_defined_bullet(i) != ITEMIZE_DEFAULTS[i]) {
1262                         if (user_defined_bullet(i).getFont() != -1) {
1263                                 os << "\\bullet " << i << " "
1264                                    << user_defined_bullet(i).getFont() << " "
1265                                    << user_defined_bullet(i).getCharacter() << " "
1266                                    << user_defined_bullet(i).getSize() << "\n";
1267                         }
1268                         else {
1269                                 // FIXME UNICODE
1270                                 os << "\\bulletLaTeX " << i << " \""
1271                                    << lyx::to_ascii(user_defined_bullet(i).getText())
1272                                    << "\"\n";
1273                         }
1274                 }
1275         }
1276
1277         os << "\\tracking_changes " << convert<string>(track_changes) << '\n'
1278            << "\\output_changes " << convert<string>(output_changes) << '\n'
1279            << "\\html_math_output " << html_math_output << '\n'
1280            << "\\html_css_as_file " << html_css_as_file << '\n'
1281            << "\\html_be_strict " << convert<string>(html_be_strict) << '\n';
1282
1283         if (html_math_img_scale != 1.0)
1284                 os << "\\html_math_img_scale " << convert<string>(html_math_img_scale) << '\n';
1285         if (!html_latex_start.empty())
1286                 os << "\\html_latex_start " << html_latex_start << '\n';
1287         if (!html_latex_end.empty())
1288                  os << "\\html_latex_end " << html_latex_end << '\n';
1289
1290         os << pimpl_->authorlist;
1291 }
1292
1293
1294 void BufferParams::validate(LaTeXFeatures & features) const
1295 {
1296         features.require(documentClass().requires());
1297
1298         if (columns > 1 && language->rightToLeft())
1299                 features.require("rtloutputdblcol");
1300
1301         if (output_changes) {
1302                 bool dvipost    = LaTeXFeatures::isAvailable("dvipost");
1303                 bool xcolorulem = LaTeXFeatures::isAvailable("ulem") &&
1304                                   LaTeXFeatures::isAvailable("xcolor");
1305
1306                 switch (features.runparams().flavor) {
1307                 case OutputParams::LATEX:
1308                 case OutputParams::DVILUATEX:
1309                         if (dvipost) {
1310                                 features.require("ct-dvipost");
1311                                 features.require("dvipost");
1312                         } else if (xcolorulem) {
1313                                 features.require("ct-xcolor-ulem");
1314                                 features.require("ulem");
1315                                 features.require("xcolor");
1316                         } else {
1317                                 features.require("ct-none");
1318                         }
1319                         break;
1320                 case OutputParams::LUATEX:
1321                 case OutputParams::PDFLATEX:
1322                 case OutputParams::XETEX:
1323                         if (xcolorulem) {
1324                                 features.require("ct-xcolor-ulem");
1325                                 features.require("ulem");
1326                                 features.require("xcolor");
1327                                 // improves color handling in PDF output
1328                                 features.require("pdfcolmk");
1329                         } else {
1330                                 features.require("ct-none");
1331                         }
1332                         break;
1333                 default:
1334                         break;
1335                 }
1336         }
1337
1338         // Floats with 'Here definitely' as default setting.
1339         if (float_placement.find('H') != string::npos)
1340                 features.require("float");
1341
1342         for (PackageMap::const_iterator it = use_packages.begin();
1343              it != use_packages.end(); ++it) {
1344                 if (it->first == "amsmath") {
1345                         // AMS Style is at document level
1346                         if (it->second == package_on ||
1347                             features.isProvided("amsmath"))
1348                                 features.require(it->first);
1349                 } else if (it->second == package_on)
1350                         features.require(it->first);
1351         }
1352
1353         // Document-level line spacing
1354         if (spacing().getSpace() != Spacing::Single && !spacing().isDefault())
1355                 features.require("setspace");
1356
1357         // the bullet shapes are buffer level not paragraph level
1358         // so they are tested here
1359         for (int i = 0; i < 4; ++i) {
1360                 if (user_defined_bullet(i) == ITEMIZE_DEFAULTS[i])
1361                         continue;
1362                 int const font = user_defined_bullet(i).getFont();
1363                 if (font == 0) {
1364                         int const c = user_defined_bullet(i).getCharacter();
1365                         if (c == 16
1366                             || c == 17
1367                             || c == 25
1368                             || c == 26
1369                             || c == 31) {
1370                                 features.require("latexsym");
1371                         }
1372                 } else if (font == 1) {
1373                         features.require("amssymb");
1374                 } else if (font >= 2 && font <= 5) {
1375                         features.require("pifont");
1376                 }
1377         }
1378
1379         if (pdfoptions().use_hyperref) {
1380                 features.require("hyperref");
1381                 // due to interferences with babel and hyperref, the color package has to
1382                 // be loaded after hyperref when hyperref is used with the colorlinks
1383                 // option, see http://www.lyx.org/trac/ticket/5291
1384                 if (pdfoptions().colorlinks)
1385                         features.require("color");
1386         }
1387         if (!listings_params.empty()) {
1388                 // do not test validity because listings_params is
1389                 // supposed to be valid
1390                 string par =
1391                         InsetListingsParams(listings_params).separatedParams(true);
1392                 // we can't support all packages, but we should load the color package
1393                 if (par.find("\\color", 0) != string::npos)
1394                         features.require("color");
1395         }
1396
1397         // some languages are only available via polyglossia
1398         if ((features.runparams().flavor == OutputParams::XETEX
1399              || features.runparams().flavor == OutputParams::LUATEX)
1400             && (features.hasPolyglossiaExclusiveLanguages()
1401                 || useNonTeXFonts))
1402                 features.require("polyglossia");
1403
1404         if (useNonTeXFonts && fontsMath() != "auto")
1405                 features.require("unicode-math");
1406
1407         if (!language->requires().empty())
1408                 features.require(language->requires());
1409 }
1410
1411
1412 bool BufferParams::writeLaTeX(otexstream & os, LaTeXFeatures & features,
1413                               FileName const & filepath) const
1414 {
1415         // http://www.tug.org/texmf-dist/doc/latex/base/fixltx2e.pdf
1416         // !! To use the Fix-cm package, load it before \documentclass, and use the command
1417         // \RequirePackage to do so, rather than the normal \usepackage
1418         // Do not try to load any other package before the document class, unless you
1419         // have a thorough understanding of the LATEX internals and know exactly what you
1420         // are doing!
1421         if (features.mustProvide("fix-cm"))
1422                 os << "\\RequirePackage{fix-cm}\n";
1423         // Likewise for fixltx2e. If other packages conflict with this policy,
1424         // treat it as a package bug (and report it!)
1425         // See http://www.latex-project.org/cgi-bin/ltxbugs2html?pr=latex/4407
1426         if (features.mustProvide("fixltx2e"))
1427                 os << "\\RequirePackage{fixltx2e}\n";
1428
1429         os << "\\documentclass";
1430
1431         DocumentClass const & tclass = documentClass();
1432
1433         ostringstream clsoptions; // the document class options.
1434
1435         if (tokenPos(tclass.opt_fontsize(),
1436                      '|', fontsize) >= 0) {
1437                 // only write if existing in list (and not default)
1438                 clsoptions << fontsize << "pt,";
1439         }
1440
1441         // all paper sizes except of A4, A5, B5 and the US sizes need the
1442         // geometry package
1443         bool nonstandard_papersize = papersize != PAPER_DEFAULT
1444                 && papersize != PAPER_USLETTER
1445                 && papersize != PAPER_USLEGAL
1446                 && papersize != PAPER_USEXECUTIVE
1447                 && papersize != PAPER_A4
1448                 && papersize != PAPER_A5
1449                 && papersize != PAPER_B5;
1450
1451         if (!use_geometry) {
1452                 switch (papersize) {
1453                 case PAPER_A4:
1454                         clsoptions << "a4paper,";
1455                         break;
1456                 case PAPER_USLETTER:
1457                         clsoptions << "letterpaper,";
1458                         break;
1459                 case PAPER_A5:
1460                         clsoptions << "a5paper,";
1461                         break;
1462                 case PAPER_B5:
1463                         clsoptions << "b5paper,";
1464                         break;
1465                 case PAPER_USEXECUTIVE:
1466                         clsoptions << "executivepaper,";
1467                         break;
1468                 case PAPER_USLEGAL:
1469                         clsoptions << "legalpaper,";
1470                         break;
1471                 case PAPER_DEFAULT:
1472                 case PAPER_A0:
1473                 case PAPER_A1:
1474                 case PAPER_A2:
1475                 case PAPER_A3:
1476                 case PAPER_A6:
1477                 case PAPER_B0:
1478                 case PAPER_B1:
1479                 case PAPER_B2:
1480                 case PAPER_B3:
1481                 case PAPER_B4:
1482                 case PAPER_B6:
1483                 case PAPER_C0:
1484                 case PAPER_C1:
1485                 case PAPER_C2:
1486                 case PAPER_C3:
1487                 case PAPER_C4:
1488                 case PAPER_C5:
1489                 case PAPER_C6:
1490                 case PAPER_JISB0:
1491                 case PAPER_JISB1:
1492                 case PAPER_JISB2:
1493                 case PAPER_JISB3:
1494                 case PAPER_JISB4:
1495                 case PAPER_JISB5:
1496                 case PAPER_JISB6:
1497                 case PAPER_CUSTOM:
1498                         break;
1499                 }
1500         }
1501
1502         // if needed
1503         if (sides != tclass.sides()) {
1504                 switch (sides) {
1505                 case OneSide:
1506                         clsoptions << "oneside,";
1507                         break;
1508                 case TwoSides:
1509                         clsoptions << "twoside,";
1510                         break;
1511                 }
1512         }
1513
1514         // if needed
1515         if (columns != tclass.columns()) {
1516                 if (columns == 2)
1517                         clsoptions << "twocolumn,";
1518                 else
1519                         clsoptions << "onecolumn,";
1520         }
1521
1522         if (!use_geometry
1523             && orientation == ORIENTATION_LANDSCAPE)
1524                 clsoptions << "landscape,";
1525
1526         // language should be a parameter to \documentclass
1527         if (language->babel() == "hebrew"
1528             && default_language->babel() != "hebrew")
1529                 // This seems necessary
1530                 features.useLanguage(default_language);
1531
1532         ostringstream language_options;
1533         bool const use_babel = features.useBabel() && !features.isProvided("babel");
1534         bool const use_polyglossia = features.usePolyglossia();
1535         bool const global = lyxrc.language_global_options;
1536         if (use_babel || (use_polyglossia && global)) {
1537                 language_options << features.getBabelLanguages();
1538                 if (!language->babel().empty()) {
1539                         if (!language_options.str().empty())
1540                                 language_options << ',';
1541                         language_options << language->babel();
1542                 }
1543                 if (global && !features.needBabelLangOptions()
1544                     && !language_options.str().empty())
1545                         clsoptions << language_options.str() << ',';
1546         }
1547
1548         // the predefined options from the layout
1549         if (use_default_options && !tclass.options().empty())
1550                 clsoptions << tclass.options() << ',';
1551
1552         // the user-defined options
1553         if (!options.empty()) {
1554                 clsoptions << options << ',';
1555         }
1556
1557         string strOptions(clsoptions.str());
1558         if (!strOptions.empty()) {
1559                 strOptions = rtrim(strOptions, ",");
1560                 // FIXME UNICODE
1561                 os << '[' << from_utf8(strOptions) << ']';
1562         }
1563
1564         os << '{' << from_ascii(tclass.latexname()) << "}\n";
1565         // end of \documentclass defs
1566
1567         // if we use fontspec or newtxmath, we have to load the AMS packages here
1568         string const ams = features.loadAMSPackages();
1569         bool const ot1 = (font_encoding() == "default" || font_encoding() == "OT1");
1570         bool const use_newtxmath =
1571                 theLaTeXFonts().getLaTeXFont(from_ascii(fontsMath())).getUsedPackage(
1572                         ot1, false, false) == "newtxmath";
1573         if ((useNonTeXFonts || use_newtxmath) && !ams.empty())
1574                 os << from_ascii(ams);
1575
1576         if (useNonTeXFonts) {
1577                 os << "\\usepackage{fontspec}\n";
1578                 if (features.mustProvide("unicode-math")
1579                     && features.isAvailable("unicode-math"))
1580                         os << "\\usepackage{unicode-math}\n";
1581         }
1582
1583         // font selection must be done before loading fontenc.sty
1584         string const fonts = loadFonts(features);
1585         if (!fonts.empty())
1586                 os << from_utf8(fonts);
1587
1588         if (fonts_default_family != "default")
1589                 os << "\\renewcommand{\\familydefault}{\\"
1590                    << from_ascii(fonts_default_family) << "}\n";
1591
1592         // set font encoding
1593         // XeTeX and LuaTeX (with OS fonts) do not need fontenc
1594         if (!useNonTeXFonts && !features.isProvided("fontenc")
1595             && font_encoding() != "default") {
1596                 // get main font encodings
1597                 vector<string> fontencs = font_encodings();
1598                 // get font encodings of secondary languages
1599                 features.getFontEncodings(fontencs);
1600                 if (!fontencs.empty()) {
1601                         os << "\\usepackage["
1602                            << from_ascii(getStringFromVector(fontencs))
1603                            << "]{fontenc}\n";
1604                 }
1605         }
1606
1607         // handle inputenc etc.
1608         writeEncodingPreamble(os, features);
1609
1610         // includeonly
1611         if (!features.runparams().includeall && !included_children_.empty()) {
1612                 os << "\\includeonly{";
1613                 list<string>::const_iterator it = included_children_.begin();
1614                 list<string>::const_iterator en = included_children_.end();
1615                 bool first = true;
1616                 for (; it != en; ++it) {
1617                         string incfile = *it;
1618                         FileName inc = makeAbsPath(incfile, filepath.absFileName());
1619                         string mangled = DocFileName(changeExtension(inc.absFileName(), ".tex")).
1620                         mangledFileName();
1621                         if (!features.runparams().nice)
1622                                 incfile = mangled;
1623                         // \includeonly doesn't want an extension
1624                         incfile = changeExtension(incfile, string());
1625                         incfile = support::latex_path(incfile);
1626                         if (!incfile.empty()) {
1627                                 if (!first)
1628                                         os << ",";
1629                                 os << from_utf8(incfile);
1630                         }
1631                         first = false;
1632                 }
1633                 os << "}\n";
1634         }
1635
1636         if (!features.isProvided("geometry")
1637             && (use_geometry || nonstandard_papersize)) {
1638                 odocstringstream ods;
1639                 if (!getGraphicsDriver("geometry").empty())
1640                         ods << getGraphicsDriver("geometry");
1641                 if (orientation == ORIENTATION_LANDSCAPE)
1642                         ods << ",landscape";
1643                 switch (papersize) {
1644                 case PAPER_CUSTOM:
1645                         if (!paperwidth.empty())
1646                                 ods << ",paperwidth="
1647                                    << from_ascii(paperwidth);
1648                         if (!paperheight.empty())
1649                                 ods << ",paperheight="
1650                                    << from_ascii(paperheight);
1651                         break;
1652                 case PAPER_USLETTER:
1653                         ods << ",letterpaper";
1654                         break;
1655                 case PAPER_USLEGAL:
1656                         ods << ",legalpaper";
1657                         break;
1658                 case PAPER_USEXECUTIVE:
1659                         ods << ",executivepaper";
1660                         break;
1661                 case PAPER_A0:
1662                         ods << ",a0paper";
1663                         break;
1664                 case PAPER_A1:
1665                         ods << ",a1paper";
1666                         break;
1667                 case PAPER_A2:
1668                         ods << ",a2paper";
1669                         break;
1670                 case PAPER_A3:
1671                         ods << ",a3paper";
1672                         break;
1673                 case PAPER_A4:
1674                         ods << ",a4paper";
1675                         break;
1676                 case PAPER_A5:
1677                         ods << ",a5paper";
1678                         break;
1679                 case PAPER_A6:
1680                         ods << ",a6paper";
1681                         break;
1682                 case PAPER_B0:
1683                         ods << ",b0paper";
1684                         break;
1685                 case PAPER_B1:
1686                         ods << ",b1paper";
1687                         break;
1688                 case PAPER_B2:
1689                         ods << ",b2paper";
1690                         break;
1691                 case PAPER_B3:
1692                         ods << ",b3paper";
1693                         break;
1694                 case PAPER_B4:
1695                         ods << ",b4paper";
1696                         break;
1697                 case PAPER_B5:
1698                         ods << ",b5paper";
1699                         break;
1700                 case PAPER_B6:
1701                         ods << ",b6paper";
1702                         break;
1703                 case PAPER_C0:
1704                         ods << ",c0paper";
1705                         break;
1706                 case PAPER_C1:
1707                         ods << ",c1paper";
1708                         break;
1709                 case PAPER_C2:
1710                         ods << ",c2paper";
1711                         break;
1712                 case PAPER_C3:
1713                         ods << ",c3paper";
1714                         break;
1715                 case PAPER_C4:
1716                         ods << ",c4paper";
1717                         break;
1718                 case PAPER_C5:
1719                         ods << ",c5paper";
1720                         break;
1721                 case PAPER_C6:
1722                         ods << ",c6paper";
1723                         break;
1724                 case PAPER_JISB0:
1725                         ods << ",b0j";
1726                         break;
1727                 case PAPER_JISB1:
1728                         ods << ",b1j";
1729                         break;
1730                 case PAPER_JISB2:
1731                         ods << ",b2j";
1732                         break;
1733                 case PAPER_JISB3:
1734                         ods << ",b3j";
1735                         break;
1736                 case PAPER_JISB4:
1737                         ods << ",b4j";
1738                         break;
1739                 case PAPER_JISB5:
1740                         ods << ",b5j";
1741                         break;
1742                 case PAPER_JISB6:
1743                         ods << ",b6j";
1744                         break;
1745                 case PAPER_DEFAULT:
1746                         break;
1747                 }
1748                 docstring const g_options = trim(ods.str(), ",");
1749                 os << "\\usepackage";
1750                 if (!g_options.empty())
1751                         os << '[' << g_options << ']';
1752                 os << "{geometry}\n";
1753                 // output this only if use_geometry is true
1754                 if (use_geometry) {
1755                         os << "\\geometry{verbose";
1756                         if (!topmargin.empty())
1757                                 os << ",tmargin=" << from_ascii(Length(topmargin).asLatexString());
1758                         if (!bottommargin.empty())
1759                                 os << ",bmargin=" << from_ascii(Length(bottommargin).asLatexString());
1760                         if (!leftmargin.empty())
1761                                 os << ",lmargin=" << from_ascii(Length(leftmargin).asLatexString());
1762                         if (!rightmargin.empty())
1763                                 os << ",rmargin=" << from_ascii(Length(rightmargin).asLatexString());
1764                         if (!headheight.empty())
1765                                 os << ",headheight=" << from_ascii(Length(headheight).asLatexString());
1766                         if (!headsep.empty())
1767                                 os << ",headsep=" << from_ascii(Length(headsep).asLatexString());
1768                         if (!footskip.empty())
1769                                 os << ",footskip=" << from_ascii(Length(footskip).asLatexString());
1770                         if (!columnsep.empty())
1771                                 os << ",columnsep=" << from_ascii(Length(columnsep).asLatexString());
1772                         os << "}\n";
1773                 }
1774         } else if (orientation == ORIENTATION_LANDSCAPE
1775                    || papersize != PAPER_DEFAULT) {
1776                 features.require("papersize");
1777         }
1778
1779         if (tokenPos(tclass.opt_pagestyle(), '|', pagestyle) >= 0) {
1780                 if (pagestyle == "fancy")
1781                         os << "\\usepackage{fancyhdr}\n";
1782                 os << "\\pagestyle{" << from_ascii(pagestyle) << "}\n";
1783         }
1784
1785         // only output when the background color is not default
1786         if (isbackgroundcolor == true) {
1787                 // only require color here, the background color will be defined
1788                 // in LaTeXFeatures.cpp to avoid interferences with the LaTeX
1789                 // package pdfpages
1790                 features.require("color");
1791                 features.require("pagecolor");
1792         }
1793
1794         // only output when the font color is not default
1795         if (isfontcolor == true) {
1796                 // only require color here, the font color will be defined
1797                 // in LaTeXFeatures.cpp to avoid interferences with the LaTeX
1798                 // package pdfpages
1799                 features.require("color");
1800                 features.require("fontcolor");
1801         }
1802
1803         // Only if class has a ToC hierarchy
1804         if (tclass.hasTocLevels()) {
1805                 if (secnumdepth != tclass.secnumdepth()) {
1806                         os << "\\setcounter{secnumdepth}{"
1807                            << secnumdepth
1808                            << "}\n";
1809                 }
1810                 if (tocdepth != tclass.tocdepth()) {
1811                         os << "\\setcounter{tocdepth}{"
1812                            << tocdepth
1813                            << "}\n";
1814                 }
1815         }
1816
1817         if (paragraph_separation) {
1818                 // when skip separation
1819                 switch (getDefSkip().kind()) {
1820                 case VSpace::SMALLSKIP:
1821                         os << "\\setlength{\\parskip}{\\smallskipamount}\n";
1822                         break;
1823                 case VSpace::MEDSKIP:
1824                         os << "\\setlength{\\parskip}{\\medskipamount}\n";
1825                         break;
1826                 case VSpace::BIGSKIP:
1827                         os << "\\setlength{\\parskip}{\\bigskipamount}\n";
1828                         break;
1829                 case VSpace::LENGTH:
1830                         os << "\\setlength{\\parskip}{"
1831                            << from_utf8(getDefSkip().length().asLatexString())
1832                            << "}\n";
1833                         break;
1834                 default: // should never happen // Then delete it.
1835                         os << "\\setlength{\\parskip}{\\medskipamount}\n";
1836                         break;
1837                 }
1838                 os << "\\setlength{\\parindent}{0pt}\n";
1839         } else {
1840                 // when separation by indentation
1841                 // only output something when a width is given
1842                 if (getIndentation().asLyXCommand() != "default") {
1843                         os << "\\setlength{\\parindent}{"
1844                            << from_utf8(getIndentation().asLatexCommand())
1845                            << "}\n";
1846                 }
1847         }
1848
1849         // Now insert the LyX specific LaTeX commands...
1850         docstring lyxpreamble;
1851         features.resolveAlternatives();
1852
1853         if (output_sync) {
1854                 if (!output_sync_macro.empty())
1855                         lyxpreamble += from_utf8(output_sync_macro) +"\n";
1856                 else if (features.runparams().flavor == OutputParams::LATEX)
1857                         lyxpreamble += "\\usepackage[active]{srcltx}\n";
1858                 else if (features.runparams().flavor == OutputParams::PDFLATEX)
1859                         lyxpreamble += "\\synctex=-1\n";
1860         }
1861
1862         // The package options (via \PassOptionsToPackage)
1863         lyxpreamble += from_ascii(features.getPackageOptions());
1864
1865         // due to interferences with babel and hyperref, the color package has to
1866         // be loaded (when it is not already loaded) before babel when hyperref
1867         // is used with the colorlinks option, see
1868         // http://www.lyx.org/trac/ticket/5291
1869         // we decided therefore to load color always before babel, see
1870         // http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg144349.html
1871         lyxpreamble += from_ascii(features.getColorOptions());
1872
1873         // If we use hyperref, jurabib, japanese, varioref or vietnamese,
1874         // we have to call babel before
1875         if (use_babel
1876             && (features.isRequired("jurabib")
1877                 || features.isRequired("hyperref")
1878                 || features.isRequired("varioref")
1879                 || features.isRequired("vietnamese")
1880                 || features.isRequired("japanese"))) {
1881                         // FIXME UNICODE
1882                         lyxpreamble += from_utf8(features.getBabelPresettings());
1883                         lyxpreamble += from_utf8(babelCall(language_options.str(),
1884                                                            features.needBabelLangOptions())) + '\n';
1885                         lyxpreamble += from_utf8(features.getBabelPostsettings());
1886         }
1887
1888         // The optional packages;
1889         lyxpreamble += from_ascii(features.getPackages());
1890
1891         // Additional Indices
1892         if (features.isRequired("splitidx")) {
1893                 IndicesList::const_iterator iit = indiceslist().begin();
1894                 IndicesList::const_iterator iend = indiceslist().end();
1895                 for (; iit != iend; ++iit) {
1896                         pair<docstring, docstring> indexname_latex =
1897                                 features.runparams().encoding->latexString(iit->index(),
1898                                                                            features.runparams().dryrun);
1899                         if (!indexname_latex.second.empty()) {
1900                                 // issue a warning about omitted characters
1901                                 // FIXME: should be passed to the error dialog
1902                                 frontend::Alert::warning(_("Uncodable characters"),
1903                                         bformat(_("The following characters that are used in an index name are not\n"
1904                                                   "representable in the current encoding and therefore have been omitted:\n%1$s."),
1905                                                 indexname_latex.second));
1906                         }
1907                         lyxpreamble += "\\newindex[";
1908                         lyxpreamble += indexname_latex.first;
1909                         lyxpreamble += "]{";
1910                         lyxpreamble += escape(iit->shortcut());
1911                         lyxpreamble += "}\n";
1912                 }
1913         }
1914
1915         // Line spacing
1916         lyxpreamble += from_utf8(spacing().writePreamble(features.isProvided("SetSpace")));
1917
1918         // PDF support.
1919         // * Hyperref manual: "Make sure it comes last of your loaded
1920         //   packages, to give it a fighting chance of not being over-written,
1921         //   since its job is to redefine many LaTeX commands."
1922         // * Email from Heiko Oberdiek: "It is usually better to load babel
1923         //   before hyperref. Then hyperref has a chance to detect babel.
1924         // * Has to be loaded before the "LyX specific LaTeX commands" to
1925         //   avoid errors with algorithm floats.
1926         // use hyperref explicitly if it is required
1927         if (features.isRequired("hyperref")) {
1928                 // pass what we have to stream here, since we need
1929                 // to access the stream itself in PDFOptions.
1930                 os << lyxpreamble;
1931
1932                 OutputParams tmp_params = features.runparams();
1933                 pdfoptions().writeLaTeX(tmp_params, os,
1934                                         features.isProvided("hyperref"));
1935                 // set back for the rest
1936                 lyxpreamble.clear();
1937                 // correctly break URLs with hyperref and dvi output
1938                 if (features.runparams().flavor == OutputParams::LATEX
1939                     && features.isAvailable("breakurl"))
1940                         lyxpreamble += "\\usepackage{breakurl}\n";
1941         } else if (features.isRequired("nameref"))
1942                 // hyperref loads this automatically
1943                 lyxpreamble += "\\usepackage{nameref}\n";
1944
1945         // bibtopic needs to be loaded after hyperref.
1946         // the dot provides the aux file naming which LyX can detect.
1947         if (features.mustProvide("bibtopic"))
1948                 lyxpreamble += "\\usepackage[dot]{bibtopic}\n";
1949
1950         // Will be surrounded by \makeatletter and \makeatother when not empty
1951         docstring atlyxpreamble;
1952
1953         // Some macros LyX will need
1954         docstring tmppreamble(features.getMacros());
1955
1956         if (!tmppreamble.empty())
1957                 atlyxpreamble += "\n%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "
1958                         "LyX specific LaTeX commands.\n"
1959                         + tmppreamble + '\n';
1960
1961         // the text class specific preamble
1962         tmppreamble = features.getTClassPreamble();
1963         if (!tmppreamble.empty())
1964                 atlyxpreamble += "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "
1965                         "Textclass specific LaTeX commands.\n"
1966                         + tmppreamble + '\n';
1967
1968         // suppress date if selected
1969         // use \@ifundefined because we cannot be sure that every document class
1970         // has a \date command
1971         if (suppress_date)
1972                 atlyxpreamble += "\\@ifundefined{date}{}{\\date{}}\n";
1973
1974         /* the user-defined preamble */
1975         if (!containsOnly(preamble, " \n\t")) {
1976                 // FIXME UNICODE
1977                 atlyxpreamble += "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "
1978                         "User specified LaTeX commands.\n";
1979
1980                 // Check if the user preamble contains uncodable glyphs
1981                 docstring const u_preamble = from_utf8(preamble);
1982                 odocstringstream user_preamble;
1983                 docstring uncodable_glyphs;
1984                 Encoding const * const enc = features.runparams().encoding;
1985                 if (enc) {
1986                         for (size_t n = 0; n < u_preamble.size(); ++n) {
1987                                 char_type c = u_preamble[n];
1988                                 if (!enc->encodable(c)) {
1989                                         docstring const glyph(1, c);
1990                                         LYXERR0("Uncodable character '"
1991                                                 << glyph
1992                                                 << "' in user preamble!");
1993                                         uncodable_glyphs += glyph;
1994                                         if (features.runparams().dryrun) {
1995                                                 user_preamble << "<" << _("LyX Warning: ")
1996                                                    << _("uncodable character") << " '";
1997                                                 user_preamble.put(c);
1998                                                 user_preamble << "'>";
1999                                         }
2000                                 } else
2001                                         user_preamble.put(c);
2002                         }
2003                 } else
2004                         user_preamble << u_preamble;
2005
2006                 // On BUFFER_VIEW|UPDATE, warn user if we found uncodable glyphs
2007                 if (!features.runparams().dryrun && !uncodable_glyphs.empty()) {
2008                         frontend::Alert::warning(
2009                                 _("Uncodable character in user preamble"),
2010                                 support::bformat(
2011                                   _("The user preamble of your document contains glyphs "
2012                                     "that are unknown in the current document encoding "
2013                                     "(namely %1$s).\nThese glyphs are omitted "
2014                                     " from the output, which may result in "
2015                                     "incomplete output."
2016                                     "\n\nPlease select an appropriate "
2017                                     "document encoding\n"
2018                                     "(such as utf8) or change the "
2019                                     "preamble code accordingly."),
2020                                   uncodable_glyphs));
2021                 }
2022                 atlyxpreamble += user_preamble.str() + '\n';
2023         }
2024
2025         // footmisc must be loaded after setspace
2026         // Load it here to avoid clashes with footmisc loaded in the user
2027         // preamble. For that reason we also pass the options via
2028         // \PassOptionsToPackage in getPreamble() and not here.
2029         if (features.mustProvide("footmisc"))
2030                 atlyxpreamble += "\\usepackage{footmisc}\n";
2031
2032         // subfig loads internally the LaTeX package "caption". As
2033         // caption is a very popular package, users will load it in
2034         // the preamble. Therefore we must load subfig behind the
2035         // user-defined preamble and check if the caption package was
2036         // loaded or not. For the case that caption is loaded before
2037         // subfig, there is the subfig option "caption=false". This
2038         // option also works when a koma-script class is used and
2039         // koma's own caption commands are used instead of caption. We
2040         // use \PassOptionsToPackage here because the user could have
2041         // already loaded subfig in the preamble.
2042         if (features.isRequired("subfig")) {
2043                 atlyxpreamble += "\\@ifundefined{showcaptionsetup}{}{%\n"
2044                         " \\PassOptionsToPackage{caption=false}{subfig}}\n"
2045                         "\\usepackage{subfig}\n";
2046         }
2047
2048         // Itemize bullet settings need to be last in case the user
2049         // defines their own bullets that use a package included
2050         // in the user-defined preamble -- ARRae
2051         // Actually it has to be done much later than that
2052         // since some packages like frenchb make modifications
2053         // at \begin{document} time -- JMarc
2054         docstring bullets_def;
2055         for (int i = 0; i < 4; ++i) {
2056                 if (user_defined_bullet(i) != ITEMIZE_DEFAULTS[i]) {
2057                         if (bullets_def.empty())
2058                                 bullets_def += "\\AtBeginDocument{\n";
2059                         bullets_def += "  \\def\\labelitemi";
2060                         switch (i) {
2061                                 // `i' is one less than the item to modify
2062                         case 0:
2063                                 break;
2064                         case 1:
2065                                 bullets_def += 'i';
2066                                 break;
2067                         case 2:
2068                                 bullets_def += "ii";
2069                                 break;
2070                         case 3:
2071                                 bullets_def += 'v';
2072                                 break;
2073                         }
2074                         bullets_def += '{' +
2075                                 user_defined_bullet(i).getText()
2076                                 + "}\n";
2077                 }
2078         }
2079
2080         if (!bullets_def.empty())
2081                 atlyxpreamble += bullets_def + "}\n\n";
2082
2083         if (!atlyxpreamble.empty())
2084                 lyxpreamble += "\n\\makeatletter\n"
2085                         + atlyxpreamble + "\\makeatother\n\n";
2086
2087         // We try to load babel late, in case it interferes with other packages.
2088         // Jurabib, hyperref, varioref, bicaption and listings (bug 8995) have to be
2089         // called after babel, though.
2090         if (use_babel && !features.isRequired("jurabib")
2091             && !features.isRequired("hyperref")
2092                 && !features.isRequired("varioref")
2093             && !features.isRequired("vietnamese")
2094             && !features.isRequired("japanese")) {
2095                 // FIXME UNICODE
2096                 lyxpreamble += from_utf8(features.getBabelPresettings());
2097                 lyxpreamble += from_utf8(babelCall(language_options.str(),
2098                                                    features.needBabelLangOptions())) + '\n';
2099                 lyxpreamble += from_utf8(features.getBabelPostsettings());
2100         }
2101         if (features.isRequired("bicaption"))
2102                 lyxpreamble += "\\usepackage{bicaption}\n";
2103         if (!listings_params.empty() || features.isRequired("listings"))
2104                 lyxpreamble += "\\usepackage{listings}\n";
2105         if (!listings_params.empty()) {
2106                 lyxpreamble += "\\lstset{";
2107                 // do not test validity because listings_params is
2108                 // supposed to be valid
2109                 string par =
2110                         InsetListingsParams(listings_params).separatedParams(true);
2111                 lyxpreamble += from_utf8(par);
2112                 lyxpreamble += "}\n";
2113         }
2114
2115         // xunicode needs to be loaded at least after amsmath, amssymb,
2116         // esint and the other packages that provide special glyphs
2117         if (features.runparams().flavor == OutputParams::XETEX
2118             && useNonTeXFonts)
2119                 lyxpreamble += "\\usepackage{xunicode}\n";
2120
2121         // Polyglossia must be loaded last
2122         if (use_polyglossia) {
2123                 // call the package
2124                 lyxpreamble += "\\usepackage{polyglossia}\n";
2125                 // set the main language
2126                 lyxpreamble += "\\setdefaultlanguage";
2127                 if (!language->polyglossiaOpts().empty())
2128                         lyxpreamble += "[" + from_ascii(language->polyglossiaOpts()) + "]";
2129                 lyxpreamble += "{" + from_ascii(language->polyglossia()) + "}\n";
2130                 // now setup the other languages
2131                 std::map<std::string, std::string> const polylangs =
2132                         features.getPolyglossiaLanguages();
2133                 for (std::map<std::string, std::string>::const_iterator mit = polylangs.begin();
2134                      mit != polylangs.end() ; ++mit) {
2135                         lyxpreamble += "\\setotherlanguage";
2136                         if (!mit->second.empty())
2137                                 lyxpreamble += "[" + from_ascii(mit->second) + "]";
2138                         lyxpreamble += "{" + from_ascii(mit->first) + "}\n";
2139                 }
2140         }
2141
2142         // Load custom language package here
2143         if (features.langPackage() == LaTeXFeatures::LANG_PACK_CUSTOM) {
2144                 if (lang_package == "default")
2145                         lyxpreamble += from_utf8(lyxrc.language_custom_package);
2146                 else
2147                         lyxpreamble += from_utf8(lang_package);
2148                 lyxpreamble += '\n';
2149         }
2150
2151         docstring const i18npreamble =
2152                 features.getTClassI18nPreamble(use_babel, use_polyglossia);
2153         if (!i18npreamble.empty())
2154                 lyxpreamble += i18npreamble + '\n';
2155
2156         os << lyxpreamble;
2157
2158         return use_babel;
2159 }
2160
2161
2162 void BufferParams::useClassDefaults()
2163 {
2164         DocumentClass const & tclass = documentClass();
2165
2166         sides = tclass.sides();
2167         columns = tclass.columns();
2168         pagestyle = tclass.pagestyle();
2169         use_default_options = true;
2170         // Only if class has a ToC hierarchy
2171         if (tclass.hasTocLevels()) {
2172                 secnumdepth = tclass.secnumdepth();
2173                 tocdepth = tclass.tocdepth();
2174         }
2175 }
2176
2177
2178 bool BufferParams::hasClassDefaults() const
2179 {
2180         DocumentClass const & tclass = documentClass();
2181
2182         return sides == tclass.sides()
2183                 && columns == tclass.columns()
2184                 && pagestyle == tclass.pagestyle()
2185                 && use_default_options
2186                 && secnumdepth == tclass.secnumdepth()
2187                 && tocdepth == tclass.tocdepth();
2188 }
2189
2190
2191 DocumentClass const & BufferParams::documentClass() const
2192 {
2193         return *doc_class_.get();
2194 }
2195
2196
2197 DocumentClassConstPtr BufferParams::documentClassPtr() const
2198 {
2199         return doc_class_;
2200 }
2201
2202
2203 void BufferParams::setDocumentClass(DocumentClassConstPtr tc)
2204 {
2205         // evil, but this function is evil
2206         doc_class_ = const_pointer_cast<DocumentClass>(tc);
2207 }
2208
2209
2210 bool BufferParams::setBaseClass(string const & classname)
2211 {
2212         LYXERR(Debug::TCLASS, "setBaseClass: " << classname);
2213         LayoutFileList & bcl = LayoutFileList::get();
2214         if (!bcl.haveClass(classname)) {
2215                 docstring s =
2216                         bformat(_("The layout file:\n"
2217                                 "%1$s\n"
2218                                 "could not be found. A default textclass with default\n"
2219                                 "layouts will be used. LyX will not be able to produce\n"
2220                                 "correct output."),
2221                         from_utf8(classname));
2222                 frontend::Alert::error(_("Document class not found"), s);
2223                 bcl.addEmptyClass(classname);
2224         }
2225
2226         bool const success = bcl[classname].load();
2227         if (!success) {
2228                 docstring s =
2229                         bformat(_("Due to some error in it, the layout file:\n"
2230                                 "%1$s\n"
2231                                 "could not be loaded. A default textclass with default\n"
2232                                 "layouts will be used. LyX will not be able to produce\n"
2233                                 "correct output."),
2234                         from_utf8(classname));
2235                 frontend::Alert::error(_("Could not load class"), s);
2236                 bcl.addEmptyClass(classname);
2237         }
2238
2239         pimpl_->baseClass_ = classname;
2240         layout_modules_.adaptToBaseClass(baseClass(), removed_modules_);
2241         return true;
2242 }
2243
2244
2245 LayoutFile const * BufferParams::baseClass() const
2246 {
2247         if (LayoutFileList::get().haveClass(pimpl_->baseClass_))
2248                 return &(LayoutFileList::get()[pimpl_->baseClass_]);
2249         else
2250                 return 0;
2251 }
2252
2253
2254 LayoutFileIndex const & BufferParams::baseClassID() const
2255 {
2256         return pimpl_->baseClass_;
2257 }
2258
2259
2260 void BufferParams::makeDocumentClass(bool const clone)
2261 {
2262         if (!baseClass())
2263                 return;
2264
2265         LayoutModuleList mods;
2266         LayoutModuleList::iterator it = layout_modules_.begin();
2267         LayoutModuleList::iterator en = layout_modules_.end();
2268         for (; it != en; ++it)
2269                 mods.push_back(*it);
2270
2271         it = cite_engine_.begin();
2272         en = cite_engine_.end();
2273         for (; it != en; ++it)
2274                 mods.push_back(*it);
2275
2276         doc_class_ = getDocumentClass(*baseClass(), mods, clone);
2277
2278         TextClass::ReturnValues success = TextClass::OK;
2279         if (!forced_local_layout_.empty())
2280                 success = doc_class_->read(forced_local_layout_, TextClass::MODULE);
2281         if (!local_layout_.empty() &&
2282             (success == TextClass::OK || success == TextClass::OK_OLDFORMAT))
2283                 success = doc_class_->read(local_layout_, TextClass::MODULE);
2284         if (success != TextClass::OK && success != TextClass::OK_OLDFORMAT) {
2285                 docstring const msg = _("Error reading internal layout information");
2286                 frontend::Alert::warning(_("Read Error"), msg);
2287         }
2288 }
2289
2290
2291 bool BufferParams::layoutModuleCanBeAdded(string const & modName) const
2292 {
2293         return layout_modules_.moduleCanBeAdded(modName, baseClass());
2294 }
2295
2296
2297 bool BufferParams::citationModuleCanBeAdded(string const & modName) const
2298 {
2299         return cite_engine_.moduleCanBeAdded(modName, baseClass());
2300 }
2301
2302
2303 std::string BufferParams::getLocalLayout(bool forced) const
2304 {
2305         if (forced)
2306                 return doc_class_->forcedLayouts();
2307         else
2308                 return local_layout_;
2309 }
2310
2311
2312 void BufferParams::setLocalLayout(string const & layout, bool forced)
2313 {
2314         if (forced)
2315                 forced_local_layout_ = layout;
2316         else
2317                 local_layout_ = layout;
2318 }
2319
2320
2321 bool BufferParams::addLayoutModule(string const & modName)
2322 {
2323         LayoutModuleList::const_iterator it = layout_modules_.begin();
2324         LayoutModuleList::const_iterator end = layout_modules_.end();
2325         for (; it != end; ++it)
2326                 if (*it == modName)
2327                         return false;
2328         layout_modules_.push_back(modName);
2329         return true;
2330 }
2331
2332
2333 string BufferParams::bufferFormat() const
2334 {
2335         string format = documentClass().outputFormat();
2336         if (format == "latex") {
2337                 if (useNonTeXFonts)
2338                         return "xetex"; // actually "xetex or luatex"
2339                 if (encoding().package() == Encoding::japanese)
2340                         return "platex";
2341         }
2342         return format;
2343 }
2344
2345
2346 bool BufferParams::isExportable(string const & format) const
2347 {
2348         vector<string> backs = backends();
2349         for (vector<string>::const_iterator it = backs.begin();
2350              it != backs.end(); ++it)
2351                 if (theConverters().isReachable(*it, format))
2352                         return true;
2353         return false;
2354 }
2355
2356
2357 vector<Format const *> BufferParams::exportableFormats(bool only_viewable) const
2358 {
2359         vector<string> const backs = backends();
2360         set<string> excludes;
2361         if (useNonTeXFonts) {
2362                 excludes.insert("latex");
2363                 excludes.insert("pdflatex");
2364         }
2365         vector<Format const *> result =
2366                 theConverters().getReachable(backs[0], only_viewable, true, excludes);
2367         for (vector<string>::const_iterator it = backs.begin() + 1;
2368              it != backs.end(); ++it) {
2369                 vector<Format const *>  r =
2370                         theConverters().getReachable(*it, only_viewable, false, excludes);
2371                 result.insert(result.end(), r.begin(), r.end());
2372         }
2373         return result;
2374 }
2375
2376
2377 bool BufferParams::isExportableFormat(string const & format) const
2378 {
2379         typedef vector<Format const *> Formats;
2380         Formats formats;
2381         formats = exportableFormats(true);
2382         Formats::const_iterator fit = formats.begin();
2383         Formats::const_iterator end = formats.end();
2384         for (; fit != end ; ++fit) {
2385                 if ((*fit)->name() == format)
2386                         return true;
2387         }
2388         return false;
2389 }
2390
2391
2392 vector<string> BufferParams::backends() const
2393 {
2394         vector<string> v;
2395         string const buffmt = bufferFormat();
2396
2397         // FIXME: Don't hardcode format names here, but use a flag
2398         if (buffmt == "latex") {
2399                 if (!useNonTeXFonts) {
2400                         v.push_back("pdflatex");
2401                         v.push_back("latex");
2402                 }
2403                 v.push_back("luatex");
2404                 v.push_back("dviluatex");
2405                 v.push_back("xetex");
2406         } else if (buffmt == "xetex") {
2407                 v.push_back("xetex");
2408                 // FIXME: need to test all languages (bug 8205)
2409                 if (!language || !language->isPolyglossiaExclusive()) {
2410                         v.push_back("luatex");
2411                         v.push_back("dviluatex");
2412                 }
2413         } else
2414                 v.push_back(buffmt);
2415
2416         v.push_back("xhtml");
2417         v.push_back("text");
2418         v.push_back("lyx");
2419         return v;
2420 }
2421
2422
2423 OutputParams::FLAVOR BufferParams::getOutputFlavor(string const & format) const
2424 {
2425         string const dformat = (format.empty() || format == "default") ?
2426                 getDefaultOutputFormat() : format;
2427         DefaultFlavorCache::const_iterator it =
2428                 default_flavors_.find(dformat);
2429
2430         if (it != default_flavors_.end())
2431                 return it->second;
2432
2433         OutputParams::FLAVOR result = OutputParams::LATEX;
2434
2435         // FIXME It'd be better not to hardcode this, but to do
2436         //       something with formats.
2437         if (dformat == "xhtml")
2438                 result = OutputParams::HTML;
2439         else if (dformat == "text")
2440                 result = OutputParams::TEXT;
2441         else if (dformat == "lyx")
2442                 result = OutputParams::LYX;
2443         else if (dformat == "pdflatex")
2444                 result = OutputParams::PDFLATEX;
2445         else if (dformat == "xetex")
2446                 result = OutputParams::XETEX;
2447         else if (dformat == "luatex")
2448                 result = OutputParams::LUATEX;
2449         else if (dformat == "dviluatex")
2450                 result = OutputParams::DVILUATEX;
2451         else {
2452                 // Try to determine flavor of default output format
2453                 vector<string> backs = backends();
2454                 if (find(backs.begin(), backs.end(), dformat) == backs.end()) {
2455                         // Get shortest path to format
2456                         Graph::EdgePath path;
2457                         for (vector<string>::const_iterator it = backs.begin();
2458                             it != backs.end(); ++it) {
2459                                 Graph::EdgePath p = theConverters().getPath(*it, dformat);
2460                                 if (!p.empty() && (path.empty() || p.size() < path.size())) {
2461                                         path = p;
2462                                 }
2463                         }
2464                         if (!path.empty())
2465                                 result = theConverters().getFlavor(path);
2466                 }
2467         }
2468         // cache this flavor
2469         default_flavors_[dformat] = result;
2470         return result;
2471 }
2472
2473
2474 string BufferParams::getDefaultOutputFormat() const
2475 {
2476         if (!default_output_format.empty()
2477             && default_output_format != "default")
2478                 return default_output_format;
2479         if (isDocBook()
2480             || encoding().package() == Encoding::japanese) {
2481                 vector<Format const *> const formats = exportableFormats(true);
2482                 if (formats.empty())
2483                         return string();
2484                 // return the first we find
2485                 return formats.front()->name();
2486         }
2487         if (useNonTeXFonts)
2488                 return lyxrc.default_otf_view_format;
2489         return lyxrc.default_view_format;
2490 }
2491
2492 Font const BufferParams::getFont() const
2493 {
2494         FontInfo f = documentClass().defaultfont();
2495         if (fonts_default_family == "rmdefault")
2496                 f.setFamily(ROMAN_FAMILY);
2497         else if (fonts_default_family == "sfdefault")
2498                 f.setFamily(SANS_FAMILY);
2499         else if (fonts_default_family == "ttdefault")
2500                 f.setFamily(TYPEWRITER_FAMILY);
2501         return Font(f, language);
2502 }
2503
2504
2505 InsetQuotes::QuoteLanguage BufferParams::getQuoteStyle(string const & qs) const
2506 {
2507         return quoteslangtranslator().find(qs);
2508 }
2509
2510
2511 bool BufferParams::isLatex() const
2512 {
2513         return documentClass().outputType() == LATEX;
2514 }
2515
2516
2517 bool BufferParams::isLiterate() const
2518 {
2519         return documentClass().outputType() == LITERATE;
2520 }
2521
2522
2523 bool BufferParams::isDocBook() const
2524 {
2525         return documentClass().outputType() == DOCBOOK;
2526 }
2527
2528
2529 void BufferParams::readPreamble(Lexer & lex)
2530 {
2531         if (lex.getString() != "\\begin_preamble")
2532                 lyxerr << "Error (BufferParams::readPreamble):"
2533                         "consistency check failed." << endl;
2534
2535         preamble = lex.getLongString("\\end_preamble");
2536 }
2537
2538
2539 void BufferParams::readLocalLayout(Lexer & lex, bool forced)
2540 {
2541         string const expected = forced ? "\\begin_forced_local_layout" :
2542                                          "\\begin_local_layout";
2543         if (lex.getString() != expected)
2544                 lyxerr << "Error (BufferParams::readLocalLayout):"
2545                         "consistency check failed." << endl;
2546
2547         if (forced)
2548                 forced_local_layout_ =
2549                         lex.getLongString("\\end_forced_local_layout");
2550         else
2551                 local_layout_ = lex.getLongString("\\end_local_layout");
2552 }
2553
2554
2555 bool BufferParams::setLanguage(string const & lang)
2556 {
2557         Language const *new_language = languages.getLanguage(lang);
2558         if (!new_language) {
2559                 // Language lang was not found
2560                 return false;
2561         }
2562         language = new_language;
2563         return true;
2564 }
2565
2566
2567 void BufferParams::readLanguage(Lexer & lex)
2568 {
2569         if (!lex.next()) return;
2570
2571         string const tmptok = lex.getString();
2572
2573         // check if tmptok is part of tex_babel in tex-defs.h
2574         if (!setLanguage(tmptok)) {
2575                 // Language tmptok was not found
2576                 language = default_language;
2577                 lyxerr << "Warning: Setting language `"
2578                        << tmptok << "' to `" << language->lang()
2579                        << "'." << endl;
2580         }
2581 }
2582
2583
2584 void BufferParams::readGraphicsDriver(Lexer & lex)
2585 {
2586         if (!lex.next())
2587                 return;
2588
2589         string const tmptok = lex.getString();
2590         // check if tmptok is part of tex_graphics in tex_defs.h
2591         int n = 0;
2592         while (true) {
2593                 string const test = tex_graphics[n++];
2594
2595                 if (test == tmptok) {
2596                         graphics_driver = tmptok;
2597                         break;
2598                 }
2599                 if (test.empty()) {
2600                         lex.printError(
2601                                 "Warning: graphics driver `$$Token' not recognized!\n"
2602                                 "         Setting graphics driver to `default'.\n");
2603                         graphics_driver = "default";
2604                         break;
2605                 }
2606         }
2607 }
2608
2609
2610 void BufferParams::readBullets(Lexer & lex)
2611 {
2612         if (!lex.next())
2613                 return;
2614
2615         int const index = lex.getInteger();
2616         lex.next();
2617         int temp_int = lex.getInteger();
2618         user_defined_bullet(index).setFont(temp_int);
2619         temp_bullet(index).setFont(temp_int);
2620         lex >> temp_int;
2621         user_defined_bullet(index).setCharacter(temp_int);
2622         temp_bullet(index).setCharacter(temp_int);
2623         lex >> temp_int;
2624         user_defined_bullet(index).setSize(temp_int);
2625         temp_bullet(index).setSize(temp_int);
2626 }
2627
2628
2629 void BufferParams::readBulletsLaTeX(Lexer & lex)
2630 {
2631         // The bullet class should be able to read this.
2632         if (!lex.next())
2633                 return;
2634         int const index = lex.getInteger();
2635         lex.next(true);
2636         docstring const temp_str = lex.getDocString();
2637
2638         user_defined_bullet(index).setText(temp_str);
2639         temp_bullet(index).setText(temp_str);
2640 }
2641
2642
2643 void BufferParams::readModules(Lexer & lex)
2644 {
2645         if (!lex.eatLine()) {
2646                 lyxerr << "Error (BufferParams::readModules):"
2647                                 "Unexpected end of input." << endl;
2648                 return;
2649         }
2650         while (true) {
2651                 string mod = lex.getString();
2652                 if (mod == "\\end_modules")
2653                         break;
2654                 addLayoutModule(mod);
2655                 lex.eatLine();
2656         }
2657 }
2658
2659
2660 void BufferParams::readRemovedModules(Lexer & lex)
2661 {
2662         if (!lex.eatLine()) {
2663                 lyxerr << "Error (BufferParams::readRemovedModules):"
2664                                 "Unexpected end of input." << endl;
2665                 return;
2666         }
2667         while (true) {
2668                 string mod = lex.getString();
2669                 if (mod == "\\end_removed_modules")
2670                         break;
2671                 removed_modules_.push_back(mod);
2672                 lex.eatLine();
2673         }
2674         // now we want to remove any removed modules that were previously
2675         // added. normally, that will be because default modules were added in
2676         // setBaseClass(), which gets called when \textclass is read at the
2677         // start of the read.
2678         list<string>::const_iterator rit = removed_modules_.begin();
2679         list<string>::const_iterator const ren = removed_modules_.end();
2680         for (; rit != ren; ++rit) {
2681                 LayoutModuleList::iterator const mit = layout_modules_.begin();
2682                 LayoutModuleList::iterator const men = layout_modules_.end();
2683                 LayoutModuleList::iterator found = find(mit, men, *rit);
2684                 if (found == men)
2685                         continue;
2686                 layout_modules_.erase(found);
2687         }
2688 }
2689
2690
2691 void BufferParams::readIncludeonly(Lexer & lex)
2692 {
2693         if (!lex.eatLine()) {
2694                 lyxerr << "Error (BufferParams::readIncludeonly):"
2695                                 "Unexpected end of input." << endl;
2696                 return;
2697         }
2698         while (true) {
2699                 string child = lex.getString();
2700                 if (child == "\\end_includeonly")
2701                         break;
2702                 included_children_.push_back(child);
2703                 lex.eatLine();
2704         }
2705 }
2706
2707
2708 string BufferParams::paperSizeName(PapersizePurpose purpose) const
2709 {
2710         switch (papersize) {
2711         case PAPER_DEFAULT:
2712                 // could be anything, so don't guess
2713                 return string();
2714         case PAPER_CUSTOM: {
2715                 if (purpose == XDVI && !paperwidth.empty() &&
2716                     !paperheight.empty()) {
2717                         // heightxwidth<unit>
2718                         string first = paperwidth;
2719                         string second = paperheight;
2720                         if (orientation == ORIENTATION_LANDSCAPE)
2721                                 first.swap(second);
2722                         // cut off unit.
2723                         return first.erase(first.length() - 2)
2724                                 + "x" + second;
2725                 }
2726                 return string();
2727         }
2728         case PAPER_A0:
2729                 // dvips and dvipdfm do not know this
2730                 if (purpose == DVIPS || purpose == DVIPDFM)
2731                         return string();
2732                 return "a0";
2733         case PAPER_A1:
2734                 if (purpose == DVIPS || purpose == DVIPDFM)
2735                         return string();
2736                 return "a1";
2737         case PAPER_A2:
2738                 if (purpose == DVIPS || purpose == DVIPDFM)
2739                         return string();
2740                 return "a2";
2741         case PAPER_A3:
2742                 return "a3";
2743         case PAPER_A4:
2744                 return "a4";
2745         case PAPER_A5:
2746                 return "a5";
2747         case PAPER_A6:
2748                 if (purpose == DVIPS || purpose == DVIPDFM)
2749                         return string();
2750                 return "a6";
2751         case PAPER_B0:
2752                 if (purpose == DVIPS || purpose == DVIPDFM)
2753                         return string();
2754                 return "b0";
2755         case PAPER_B1:
2756                 if (purpose == DVIPS || purpose == DVIPDFM)
2757                         return string();
2758                 return "b1";
2759         case PAPER_B2:
2760                 if (purpose == DVIPS || purpose == DVIPDFM)
2761                         return string();
2762                 return "b2";
2763         case PAPER_B3:
2764                 if (purpose == DVIPS || purpose == DVIPDFM)
2765                         return string();
2766                 return "b3";
2767         case PAPER_B4:
2768                 // dvipdfm does not know this
2769                 if (purpose == DVIPDFM)
2770                         return string();
2771                 return "b4";
2772         case PAPER_B5:
2773                 if (purpose == DVIPDFM)
2774                         return string();
2775                 return "b5";
2776         case PAPER_B6:
2777                 if (purpose == DVIPS || purpose == DVIPDFM)
2778                         return string();
2779                 return "b6";
2780         case PAPER_C0:
2781                 if (purpose == DVIPS || purpose == DVIPDFM)
2782                         return string();
2783                 return "c0";
2784         case PAPER_C1:
2785                 if (purpose == DVIPS || purpose == DVIPDFM)
2786                         return string();
2787                 return "c1";
2788         case PAPER_C2:
2789                 if (purpose == DVIPS || purpose == DVIPDFM)
2790                         return string();
2791                 return "c2";
2792         case PAPER_C3:
2793                 if (purpose == DVIPS || purpose == DVIPDFM)
2794                         return string();
2795                 return "c3";
2796         case PAPER_C4:
2797                 if (purpose == DVIPS || purpose == DVIPDFM)
2798                         return string();
2799                 return "c4";
2800         case PAPER_C5:
2801                 if (purpose == DVIPS || purpose == DVIPDFM)
2802                         return string();
2803                 return "c5";
2804         case PAPER_C6:
2805                 if (purpose == DVIPS || purpose == DVIPDFM)
2806                         return string();
2807                 return "c6";
2808         case PAPER_JISB0:
2809                 if (purpose == DVIPS || purpose == DVIPDFM)
2810                         return string();
2811                 return "jisb0";
2812         case PAPER_JISB1:
2813                 if (purpose == DVIPS || purpose == DVIPDFM)
2814                         return string();
2815                 return "jisb1";
2816         case PAPER_JISB2:
2817                 if (purpose == DVIPS || purpose == DVIPDFM)
2818                         return string();
2819                 return "jisb2";
2820         case PAPER_JISB3:
2821                 if (purpose == DVIPS || purpose == DVIPDFM)
2822                         return string();
2823                 return "jisb3";
2824         case PAPER_JISB4:
2825                 if (purpose == DVIPS || purpose == DVIPDFM)
2826                         return string();
2827                 return "jisb4";
2828         case PAPER_JISB5:
2829                 if (purpose == DVIPS || purpose == DVIPDFM)
2830                         return string();
2831                 return "jisb5";
2832         case PAPER_JISB6:
2833                 if (purpose == DVIPS || purpose == DVIPDFM)
2834                         return string();
2835                 return "jisb6";
2836         case PAPER_USEXECUTIVE:
2837                 // dvipdfm does not know this
2838                 if (purpose == DVIPDFM)
2839                         return string();
2840                 return "foolscap";
2841         case PAPER_USLEGAL:
2842                 return "legal";
2843         case PAPER_USLETTER:
2844         default:
2845                 if (purpose == XDVI)
2846                         return "us";
2847                 return "letter";
2848         }
2849 }
2850
2851
2852 string const BufferParams::dvips_options() const
2853 {
2854         string result;
2855
2856         // If the class loads the geometry package, we do not know which
2857         // paper size is used, since we do not set it (bug 7013).
2858         // Therefore we must not specify any argument here.
2859         // dvips gets the correct paper size via DVI specials in this case
2860         // (if the class uses the geometry package correctly).
2861         if (documentClass().provides("geometry"))
2862                 return result;
2863
2864         if (use_geometry
2865             && papersize == PAPER_CUSTOM
2866             && !lyxrc.print_paper_dimension_flag.empty()
2867             && !paperwidth.empty()
2868             && !paperheight.empty()) {
2869                 // using a custom papersize
2870                 result = lyxrc.print_paper_dimension_flag;
2871                 result += ' ' + paperwidth;
2872                 result += ',' + paperheight;
2873         } else {
2874                 string const paper_option = paperSizeName(DVIPS);
2875                 if (!paper_option.empty() && (paper_option != "letter" ||
2876                     orientation != ORIENTATION_LANDSCAPE)) {
2877                         // dvips won't accept -t letter -t landscape.
2878                         // In all other cases, include the paper size
2879                         // explicitly.
2880                         result = lyxrc.print_paper_flag;
2881                         result += ' ' + paper_option;
2882                 }
2883         }
2884         if (orientation == ORIENTATION_LANDSCAPE &&
2885             papersize != PAPER_CUSTOM)
2886                 result += ' ' + lyxrc.print_landscape_flag;
2887         return result;
2888 }
2889
2890
2891 string const BufferParams::font_encoding() const
2892 {
2893         return font_encodings().empty() ? "default" : font_encodings().back();
2894 }
2895
2896
2897 vector<string> const BufferParams::font_encodings() const
2898 {
2899         string doc_fontenc = (fontenc == "global") ? lyxrc.fontenc : fontenc;
2900
2901         vector<string> fontencs;
2902
2903         // "default" means "no explicit font encoding"
2904         if (doc_fontenc != "default") {
2905                 fontencs = getVectorFromString(doc_fontenc);
2906                 if (!language->fontenc().empty()
2907                     && ascii_lowercase(language->fontenc()) != "none") {
2908                         vector<string> fencs = getVectorFromString(language->fontenc());
2909                         vector<string>::const_iterator fit = fencs.begin();
2910                         for (; fit != fencs.end(); ++fit) {
2911                                 if (find(fontencs.begin(), fontencs.end(), *fit) == fontencs.end())
2912                                         fontencs.push_back(*fit);
2913                         }
2914                 }
2915         }
2916
2917         return fontencs;
2918 }
2919
2920
2921 string BufferParams::babelCall(string const & lang_opts, bool const langoptions) const
2922 {
2923         // suppress the babel call if there is no BabelName defined
2924         // for the document language in the lib/languages file and if no
2925         // other languages are used (lang_opts is then empty)
2926         if (lang_opts.empty())
2927                 return string();
2928         // either a specific language (AsBabelOptions setting in
2929         // lib/languages) or the prefs require the languages to
2930         // be submitted to babel itself (not the class).
2931         if (langoptions)
2932                 return "\\usepackage[" + lang_opts + "]{babel}";
2933         return "\\usepackage{babel}";
2934 }
2935
2936
2937 docstring BufferParams::getGraphicsDriver(string const & package) const
2938 {
2939         docstring result;
2940
2941         if (package == "geometry") {
2942                 if (graphics_driver == "dvips"
2943                     || graphics_driver == "dvipdfm"
2944                     || graphics_driver == "pdftex"
2945                     || graphics_driver == "vtex")
2946                         result = from_ascii(graphics_driver);
2947                 else if (graphics_driver == "dvipdfmx")
2948                         result = from_ascii("dvipdfm");
2949         }
2950
2951         return result;
2952 }
2953
2954
2955 void BufferParams::writeEncodingPreamble(otexstream & os,
2956                                          LaTeXFeatures & features) const
2957 {
2958         // XeTeX/LuaTeX: (see also #9740)
2959         // With Unicode fonts we use utf8-plain without encoding package.
2960         // With TeX fonts, we cannot use utf8-plain, but "inputenc" fails.
2961         // XeTeX must use ASCII encoding, for LuaTeX, we load
2962         // "luainputenc" (see below).
2963         if (useNonTeXFonts || features.runparams().flavor == OutputParams::XETEX)
2964                 return;
2965
2966         if (inputenc == "auto") {
2967                 string const doc_encoding =
2968                         language->encoding()->latexName();
2969                 Encoding::Package const package =
2970                         language->encoding()->package();
2971
2972                 // Create list of inputenc options:
2973                 set<string> encodings;
2974                 // luainputenc fails with more than one encoding
2975                 if (!features.runparams().isFullUnicode()) // if we reach this point, this means LuaTeX with TeX fonts
2976                         // list all input encodings used in the document
2977                         encodings = features.getEncodingSet(doc_encoding);
2978
2979                 // If the "japanese" package (i.e. pLaTeX) is used,
2980                 // inputenc must be omitted.
2981                 // see http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg129680.html
2982                 if ((!encodings.empty() || package == Encoding::inputenc)
2983                     && !features.isRequired("japanese")
2984                     && !features.isProvided("inputenc")) {
2985                         os << "\\usepackage[";
2986                         set<string>::const_iterator it = encodings.begin();
2987                         set<string>::const_iterator const end = encodings.end();
2988                         if (it != end) {
2989                                 os << from_ascii(*it);
2990                                 ++it;
2991                         }
2992                         for (; it != end; ++it)
2993                                 os << ',' << from_ascii(*it);
2994                         if (package == Encoding::inputenc) {
2995                                 if (!encodings.empty())
2996                                         os << ',';
2997                                 os << from_ascii(doc_encoding);
2998                         }
2999                         if (features.runparams().flavor == OutputParams::LUATEX
3000                             || features.runparams().flavor == OutputParams::DVILUATEX)
3001                                 os << "]{luainputenc}\n";
3002                         else
3003                                 os << "]{inputenc}\n";
3004                 }
3005                 if (package == Encoding::CJK || features.mustProvide("CJK")) {
3006                         if (language->encoding()->name() == "utf8-cjk"
3007                             && LaTeXFeatures::isAvailable("CJKutf8"))
3008                                 os << "\\usepackage{CJKutf8}\n";
3009                         else
3010                                 os << "\\usepackage{CJK}\n";
3011                 }
3012         } else if (inputenc != "default") {
3013                 switch (encoding().package()) {
3014                 case Encoding::none:
3015                 case Encoding::japanese:
3016                         break;
3017                 case Encoding::inputenc:
3018                         // do not load inputenc if japanese is used
3019                         // or if the class provides inputenc
3020                         if (features.isRequired("japanese")
3021                             || features.isProvided("inputenc"))
3022                                 break;
3023                         os << "\\usepackage[" << from_ascii(encoding().latexName());
3024                         if (features.runparams().flavor == OutputParams::LUATEX
3025                             || features.runparams().flavor == OutputParams::DVILUATEX)
3026                                 os << "]{luainputenc}\n";
3027                         else
3028                                 os << "]{inputenc}\n";
3029                         break;
3030                 case Encoding::CJK:
3031                         if (encoding().name() == "utf8-cjk"
3032                             && LaTeXFeatures::isAvailable("CJKutf8"))
3033                                 os << "\\usepackage{CJKutf8}\n";
3034                         else
3035                                 os << "\\usepackage{CJK}\n";
3036                         break;
3037                 }
3038                 // Load the CJK package if needed by a secondary language.
3039                 // If the main encoding is some variant of UTF8, use CJKutf8.
3040                 if (encoding().package() != Encoding::CJK && features.mustProvide("CJK")) {
3041                         if (encoding().iconvName() == "UTF-8"
3042                             && LaTeXFeatures::isAvailable("CJKutf8"))
3043                                 os << "\\usepackage{CJKutf8}\n";
3044                         else
3045                                 os << "\\usepackage{CJK}\n";
3046                 }
3047         }
3048 }
3049
3050
3051 string const BufferParams::parseFontName(string const & name) const
3052 {
3053         string mangled = name;
3054         size_t const idx = mangled.find('[');
3055         if (idx == string::npos || idx == 0)
3056                 return mangled;
3057         else
3058                 return mangled.substr(0, idx - 1);
3059 }
3060
3061
3062 string const BufferParams::loadFonts(LaTeXFeatures & features) const
3063 {
3064         if (fontsRoman() == "default" && fontsSans() == "default"
3065             && fontsTypewriter() == "default"
3066             && (fontsMath() == "default" || fontsMath() == "auto"))
3067                 //nothing to do
3068                 return string();
3069
3070         ostringstream os;
3071
3072         /* Fontspec (XeTeX, LuaTeX): we provide GUI support for oldstyle
3073          * numbers (Numbers=OldStyle) and sf/tt scaling. The Ligatures=TeX/
3074          * Mapping=tex-text option assures TeX ligatures (such as "--")
3075          * are resolved. Note that tt does not use these ligatures.
3076          * TODO:
3077          *    -- add more GUI options?
3078          *    -- add more fonts (fonts for other scripts)
3079          *    -- if there's a way to find out if a font really supports
3080          *       OldStyle, enable/disable the widget accordingly.
3081         */
3082         if (useNonTeXFonts && features.isAvailable("fontspec")) {
3083                 // "Mapping=tex-text" and "Ligatures=TeX" are equivalent.
3084                 // However, until v.2 (2010/07/11) fontspec only knew
3085                 // Mapping=tex-text (for XeTeX only); then "Ligatures=TeX"
3086                 // was introduced for both XeTeX and LuaTeX (LuaTeX
3087                 // didn't understand "Mapping=tex-text", while XeTeX
3088                 // understood both. With most recent versions, both
3089                 // variants are understood by both engines. However,
3090                 // we want to provide support for at least TeXLive 2009
3091                 // (for XeTeX; LuaTeX is only supported as of v.2)
3092                 string const texmapping =
3093                         (features.runparams().flavor == OutputParams::XETEX) ?
3094                         "Mapping=tex-text" : "Ligatures=TeX";
3095                 if (fontsRoman() != "default") {
3096                         os << "\\setmainfont[" << texmapping;
3097                         if (fonts_old_figures)
3098                                 os << ",Numbers=OldStyle";
3099                         os << "]{" << parseFontName(fontsRoman()) << "}\n";
3100                 }
3101                 if (fontsSans() != "default") {
3102                         string const sans = parseFontName(fontsSans());
3103                         if (fontsSansScale() != 100)
3104                                 os << "\\setsansfont[Scale="
3105                                    << float(fontsSansScale()) / 100
3106                                    << "," << texmapping << "]{"
3107                                    << sans << "}\n";
3108                         else
3109                                 os << "\\setsansfont[" << texmapping << "]{"
3110                                    << sans << "}\n";
3111                 }
3112                 if (fontsTypewriter() != "default") {
3113                         string const mono = parseFontName(fontsTypewriter());
3114                         if (fontsTypewriterScale() != 100)
3115                                 os << "\\setmonofont[Scale="
3116                                    << float(fontsTypewriterScale()) / 100
3117                                    << "]{"
3118                                    << mono << "}\n";
3119                         else
3120                                 os << "\\setmonofont{"
3121                                    << mono << "}\n";
3122                 }
3123                 return os.str();
3124         }
3125
3126         // Tex Fonts
3127         bool const ot1 = (font_encoding() == "default" || font_encoding() == "OT1");
3128         bool const dryrun = features.runparams().dryrun;
3129         bool const complete = (fontsSans() == "default" && fontsTypewriter() == "default");
3130         bool const nomath = (fontsMath() == "default");
3131
3132         // ROMAN FONTS
3133         os << theLaTeXFonts().getLaTeXFont(from_ascii(fontsRoman())).getLaTeXCode(
3134                 dryrun, ot1, complete, fonts_expert_sc, fonts_old_figures,
3135                 nomath);
3136
3137         // SANS SERIF
3138         os << theLaTeXFonts().getLaTeXFont(from_ascii(fontsSans())).getLaTeXCode(
3139                 dryrun, ot1, complete, fonts_expert_sc, fonts_old_figures,
3140                 nomath, fontsSansScale());
3141
3142         // MONOSPACED/TYPEWRITER
3143         os << theLaTeXFonts().getLaTeXFont(from_ascii(fontsTypewriter())).getLaTeXCode(
3144                 dryrun, ot1, complete, fonts_expert_sc, fonts_old_figures,
3145                 nomath, fontsTypewriterScale());
3146
3147         // MATH
3148         os << theLaTeXFonts().getLaTeXFont(from_ascii(fontsMath())).getLaTeXCode(
3149                 dryrun, ot1, complete, fonts_expert_sc, fonts_old_figures,
3150                 nomath);
3151
3152         return os.str();
3153 }
3154
3155
3156 Encoding const & BufferParams::encoding() const
3157 {
3158         // Main encoding for LaTeX output.
3159         //
3160         // Exception: XeTeX with 8-bit TeX fonts requires ASCII (see #9740).
3161         // As the "flavor" is only known once export started, this
3162         // cannot be handled here. Instead, runparams.encoding is set
3163         // to ASCII in Buffer::makeLaTeXFile (for export)
3164         // and Buffer::writeLaTeXSource (for preview).
3165         if (useNonTeXFonts)
3166                 return *(encodings.fromLyXName("utf8-plain"));
3167         if (inputenc == "auto" || inputenc == "default")
3168                 return *language->encoding();
3169         Encoding const * const enc = encodings.fromLyXName(inputenc);
3170         if (enc)
3171                 return *enc;
3172         LYXERR0("Unknown inputenc value `" << inputenc
3173                << "'. Using `auto' instead.");
3174         return *language->encoding();
3175 }
3176
3177
3178 bool BufferParams::addCiteEngine(string const & engine)
3179 {
3180         LayoutModuleList::const_iterator it = cite_engine_.begin();
3181         LayoutModuleList::const_iterator en = cite_engine_.end();
3182         for (; it != en; ++it)
3183                 if (*it == engine)
3184                         return false;
3185         cite_engine_.push_back(engine);
3186         return true;
3187 }
3188
3189
3190 bool BufferParams::addCiteEngine(vector<string> const & engine)
3191 {
3192         vector<string>::const_iterator it = engine.begin();
3193         vector<string>::const_iterator en = engine.end();
3194         bool ret = true;
3195         for (; it != en; ++it)
3196                 if (!addCiteEngine(*it))
3197                         ret = false;
3198         return ret;
3199 }
3200
3201
3202 string const & BufferParams::defaultBiblioStyle() const
3203 {
3204         return documentClass().defaultBiblioStyle();
3205 }
3206
3207
3208 bool const & BufferParams::fullAuthorList() const
3209 {
3210         return documentClass().fullAuthorList();
3211 }
3212
3213
3214 void BufferParams::setCiteEngine(string const & engine)
3215 {
3216         clearCiteEngine();
3217         addCiteEngine(engine);
3218 }
3219
3220
3221 void BufferParams::setCiteEngine(vector<string> const & engine)
3222 {
3223         clearCiteEngine();
3224         addCiteEngine(engine);
3225 }
3226
3227
3228 vector<string> BufferParams::citeCommands() const
3229 {
3230         static CitationStyle const default_style;
3231         vector<string> commands =
3232                 documentClass().citeCommands(citeEngineType());
3233         if (commands.empty())
3234                 commands.push_back(default_style.cmd);
3235         return commands;
3236 }
3237
3238
3239 vector<CitationStyle> BufferParams::citeStyles() const
3240 {
3241         static CitationStyle const default_style;
3242         vector<CitationStyle> styles =
3243                 documentClass().citeStyles(citeEngineType());
3244         if (styles.empty())
3245                 styles.push_back(default_style);
3246         return styles;
3247 }
3248
3249 } // namespace lyx