src/tex2lyx/preamble.cpp

   1 /**
   2  * \file preamble.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author André Pönitz
   7  * \author Uwe Stöhr
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 // {[(
  13
  14 #include <config.h>
  15
  16 #include "tex2lyx.h"
  17
  18 #include "LayoutFile.h"
  19 #include "Layout.h"
  20 #include "Lexer.h"
  21 #include "TextClass.h"
  22
  23 #include "support/convert.h"
  24 #include "support/FileName.h"
  25 #include "support/filetools.h"
  26 #include "support/lstrings.h"
  27
  28 #include <boost/regex.hpp>
  29
  30 #include <algorithm>
  31 #include <iostream>
  32 #include <sstream>
  33 #include <string>
  34 #include <vector>
  35 #include <map>
  36
  37 using namespace std;
  38 using namespace lyx::support;
  39 using boost::regex;
  40 using boost::smatch;
  41
  42 namespace lyx {
  43
  44 // special columntypes
  45 extern map<char, int> special_columns;
  46
  47 map<string, vector<string> > used_packages;
  48
  49 // needed to handle encodings with babel
  50 bool one_language = true;
  51
  52 // to avoid that the babel options overwrite the documentclass options
  53 bool documentclass_language = false;
  54
  55 namespace {
  56
  57 const char * const known_languages[] = { "afrikaans", "american", "arabic",
  58 "austrian", "bahasa", "basque", "belarusian", "brazil", "brazilian", "breton",
  59 "british", "bulgarian", "canadian", "canadien", "catalan", "croatian", "czech",
  60 "danish", "dutch", "english", "esperanto", "estonian", "finnish", "francais",
  61 "french", "frenchb", "frenchle", "frenchpro", "galician", "german", "germanb",
  62 "greek", "hebrew", "icelandic", "irish", "italian", "lsorbian", "magyar",
  63 "naustrian", "ngerman", "ngermanb", "norsk", "nynorsk", "polish", "portuges",
  64 "portuguese", "romanian", "russian", "russianb", "scottish", "serbian", "slovak",
  65 "slovene", "spanish", "swedish", "thai", "turkish", "ukraineb", "ukrainian",
  66 "usorbian", "welsh", 0};
  67
  68 //note this when updating to lyxformat 305:
  69 //bahasai, indonesian, and indon = equal to bahasa
  70 //malay and meyalu = equal to bahasam
  71
  72 const char * const known_brazilian_languages[] = {"brazil", "brazilian", 0};
  73 const char * const known_french_languages[] = {"french", "frenchb", "francais",
  74                                                 "frenchle", "frenchpro", 0};
  75 const char * const known_german_languages[] = {"german", "germanb", 0};
  76 const char * const known_ngerman_languages[] = {"ngerman", "ngermanb", 0};
  77 const char * const known_portuguese_languages[] = {"portuges", "portuguese", 0};
  78 const char * const known_russian_languages[] = {"russian", "russianb", 0};
  79 const char * const known_ukrainian_languages[] = {"ukrainian", "ukraineb", 0};
  80
  81 char const * const known_fontsizes[] = { "10pt", "11pt", "12pt", 0 };
  82
  83 const char * const known_roman_fonts[] = { "ae", "bookman", "charter",
  84 "cmr", "fourier", "lmodern", "mathpazo", "mathptmx", "newcent", 0};
  85
  86 const char * const known_sans_fonts[] = { "avant", "berasans", "cmbr", "cmss",
  87 "helvet", "lmss", 0};
  88
  89 const char * const known_typewriter_fonts[] = { "beramono", "cmtl", "cmtt",
  90 "courier", "lmtt", "luximono", "fourier", "lmodern", "mathpazo", "mathptmx",
  91 "newcent", 0};
  92
  93 const char * const known_paper_sizes[] = { "a3paper", "b3paper", "a4paper",
  94 "b4paper", "a5paper", "b5paper", "executivepaper", "legalpaper",
  95 "letterpaper", 0};
  96
  97 const char * const known_class_paper_sizes[] = { "a4paper", "a5paper",
  98 "executivepaper", "legalpaper", "letterpaper", 0};
  99
 100 const char * const known_paper_margins[] = { "lmargin", "tmargin", "rmargin",
 101 "bmargin", "headheight", "headsep", "footskip", "columnsep", 0};
 102
 103 const char * const known_coded_paper_margins[] = { "leftmargin", "topmargin",
 104 "rightmargin", "bottommargin", "headheight", "headsep", "footskip",
 105 "columnsep", 0};
 106
 107 // default settings
 108 ostringstream h_preamble;
 109 string h_textclass               = "article";
 110 string h_options                 = string();
 111 string h_language                = "english";
 112 string h_inputencoding           = "auto";
 113 string h_font_roman              = "default";
 114 string h_font_sans               = "default";
 115 string h_font_typewriter         = "default";
 116 string h_font_default_family     = "default";
 117 string h_font_sc                 = "false";
 118 string h_font_osf                = "false";
 119 string h_font_sf_scale           = "100";
 120 string h_font_tt_scale           = "100";
 121 string h_graphics                = "default";
 122 string h_paperfontsize           = "default";
 123 string h_spacing                 = "single";
 124 string h_papersize               = "default";
 125 string h_use_geometry            = "false";
 126 string h_use_amsmath             = "1";
 127 string h_use_esint               = "1";
 128 string h_cite_engine             = "basic";
 129 string h_use_bibtopic            = "false";
 130 string h_paperorientation        = "portrait";
 131 string h_secnumdepth             = "3";
 132 string h_tocdepth                = "3";
 133 string h_paragraph_separation    = "indent";
 134 string h_defskip                 = "medskip";
 135 string h_quotes_language         = "english";
 136 string h_papercolumns            = "1";
 137 string h_papersides              = string();
 138 string h_paperpagestyle          = "default";
 139 string h_tracking_changes        = "false";
 140 string h_output_changes          = "false";
 141 string h_margins                 = "";
 142
 143
 144 // returns true if at least one of the options in what has been found
 145 bool handle_opt(vector<string> & opts, char const * const * what, string & target)
 146 {
 147         if (opts.empty())
 148                 return false;
 149
 150         bool found = false;
 151         // the last language option is the document language (for babel and LyX)
 152         // the last size option is the document font size
 153         vector<string>::iterator it;
 154         vector<string>::iterator position = opts.begin();
 155         for (; *what; ++what) {
 156                 it = find(opts.begin(), opts.end(), *what);
 157                 if (it != opts.end()) {
 158                         if (it >= position) {
 159                                 found = true;
 160                                 target = *what;
 161                                 position = it;
 162                         }
 163                 }
 164         }
 165         return found;
 166 }
 167
 168
 169 void delete_opt(vector<string> & opts, char const * const * what)
 170 {
 171         if (opts.empty())
 172                 return;
 173
 174         // remove found options from the list
 175         // do this after handle_opt to avoid potential memory leaks
 176         vector<string>::iterator it;
 177         for (; *what; ++what) {
 178                 it = find(opts.begin(), opts.end(), *what);
 179                 if (it != opts.end())
 180                         opts.erase(it);
 181         }
 182 }
 183
 184
 185 /*!
 186  * Split a package options string (keyval format) into a vector.
 187  * Example input:
 188  *   authorformat=smallcaps,
 189  *   commabeforerest,
 190  *   titleformat=colonsep,
 191  *   bibformat={tabular,ibidem,numbered}
 192  */
 193 vector<string> split_options(string const & input)
 194 {
 195         vector<string> options;
 196         string option;
 197         Parser p(input);
 198         while (p.good()) {
 199                 Token const & t = p.get_token();
 200                 if (t.asInput() == ",") {
 201                         options.push_back(trim(option));
 202                         option.erase();
 203                 } else if (t.asInput() == "=") {
 204                         option += '=';
 205                         p.skip_spaces(true);
 206                         if (p.next_token().asInput() == "{")
 207                                 option += '{' + p.getArg('{', '}') + '}';
 208                 } else if (t.cat() != catSpace)
 209                         option += t.asInput();
 210         }
 211
 212         if (!option.empty())
 213                 options.push_back(trim(option));
 214
 215         return options;
 216 }
 217
 218
 219 /*!
 220  * Add package \p name with options \p options to used_packages.
 221  * Remove options from \p options that we don't want to output.
 222  */
 223 void add_package(string const & name, vector<string> & options)
 224 {
 225         // every package inherits the global options
 226         if (used_packages.find(name) == used_packages.end())
 227                 used_packages[name] = split_options(h_options);
 228
 229         vector<string> & v = used_packages[name];
 230         v.insert(v.end(), options.begin(), options.end());
 231         if (name == "jurabib") {
 232                 // Don't output the order argument (see the cite command
 233                 // handling code in text.cpp).
 234                 vector<string>::iterator end =
 235                         remove(options.begin(), options.end(), "natbiborder");
 236                 end = remove(options.begin(), end, "jurabiborder");
 237                 options.erase(end, options.end());
 238         }
 239 }
 240
 241
 242 // Given is a string like "scaled=0.9", return 0.9 * 100
 243 string const scale_as_percentage(string const & scale)
 244 {
 245         string::size_type pos = scale.find('=');
 246         if (pos != string::npos) {
 247                 string value = scale.substr(pos + 1);
 248                 if (isStrDbl(value))
 249                         return convert<string>(100 * convert<double>(value));
 250         }
 251         // If the input string didn't match our expectations.
 252         // return the default value "100"
 253         return "100";
 254 }
 255
 256
 257 void handle_package(Parser &p, string const & name, string const & opts,
 258                     bool in_lyx_preamble)
 259 {
 260         vector<string> options = split_options(opts);
 261         add_package(name, options);
 262         string scale;
 263
 264         // roman fonts
 265         if (is_known(name, known_roman_fonts)) {
 266                 h_font_roman = name;
 267                 p.skip_spaces();
 268         }
 269
 270         if (name == "fourier") {
 271                 h_font_roman = "utopia";
 272                 // when font uses real small capitals
 273                 if (opts == "expert")
 274                         h_font_sc = "true";
 275         }
 276
 277         if (name == "mathpazo")
 278                 h_font_roman = "palatino";
 279
 280         if (name == "mathptmx")
 281                 h_font_roman = "times";
 282
 283         // sansserif fonts
 284         if (is_known(name, known_sans_fonts)) {
 285                 h_font_sans = name;
 286                 if (!opts.empty()) {
 287                         scale = opts;
 288                         h_font_sf_scale = scale_as_percentage(scale);
 289                 }
 290         }
 291
 292         // typewriter fonts
 293         if (is_known(name, known_typewriter_fonts)) {
 294                 h_font_typewriter = name;
 295                 if (!opts.empty()) {
 296                         scale = opts;
 297                         h_font_tt_scale = scale_as_percentage(scale);
 298                 }
 299         }
 300
 301         // font uses old-style figure
 302         if (name == "eco")
 303                 h_font_osf = "true";
 304
 305         else if (name == "amsmath" || name == "amssymb")
 306                 h_use_amsmath = "2";
 307
 308         else if (name == "esint")
 309                 h_use_esint = "2";
 310
 311         else if (name == "babel" && !opts.empty()) {
 312                 // check if more than one option was used - used later for inputenc
 313                 // in case inputenc is parsed before babel, set the encoding to auto
 314                 if (options.begin() != options.end() - 1) {
 315                         one_language = false;
 316                         h_inputencoding = "auto";
 317                 }
 318                 // only set the document language when there was not already one set
 319                 // via the documentclass options
 320                 // babel takes the the last language given in the documentclass options
 321                 // as document language. If there is no such language option, the last
 322                 // option of its \usepackage call is used.
 323                 if (documentclass_language == false) {
 324                         handle_opt(options, known_languages, h_language);
 325                         delete_opt(options, known_languages);
 326                         if (is_known(h_language, known_brazilian_languages))
 327                                 h_language = "brazilian";
 328                         else if (is_known(h_language, known_french_languages))
 329                                 h_language = "french";
 330                         else if (is_known(h_language, known_german_languages))
 331                                 h_language = "german";
 332                         else if (is_known(h_language, known_ngerman_languages))
 333                                 h_language = "ngerman";
 334                         else if (is_known(h_language, known_portuguese_languages))
 335                                 h_language = "portuguese";
 336                         else if (is_known(h_language, known_russian_languages))
 337                                 h_language = "russian";
 338                         else if (is_known(h_language, known_ukrainian_languages))
 339                                 h_language = "ukrainian";
 340                         h_quotes_language = h_language;
 341                 }
 342         }
 343
 344         else if (name == "fontenc")
 345                  ;// ignore this
 346
 347         else if (name == "inputenc") {
 348                 // only set when there is not more than one inputenc
 349                 // option therefore check for the "," character also
 350                 // only set when there is not more then one babel
 351                 // language option
 352                 if (opts.find(",") == string::npos && one_language == true) {
 353                         if (opts == "ascii")
 354                                 //change ascii to auto to be in the unicode range, see
 355                                 //http://bugzilla.lyx.org/show_bug.cgi?id=4719
 356                                 h_inputencoding = "auto";
 357                         else if (!opts.empty())
 358                                 h_inputencoding = opts;
 359                 }
 360                 if (!options.empty())
 361                         p.setEncoding(options.back());
 362                 options.clear();
 363         }
 364
 365         else if (name == "makeidx")
 366                 ; // ignore this
 367
 368         else if (name == "prettyref")
 369                 ; // ignore this
 370
 371         else if (name == "varioref")
 372                 ; // ignore this
 373
 374         else if (name == "verbatim")
 375                 ; // ignore this
 376
 377         else if (name == "nomencl")
 378                 ; // ignore this
 379
 380         else if (name == "textcomp")
 381                 ; // ignore this
 382
 383         else if (name == "url")
 384                 ; // ignore this
 385
 386         else if (name == "color") {
 387                 // with the following command this package is only loaded when needed for
 388                 // undefined colors, since we only support the predefined colors
 389                 h_preamble << "\\@ifundefined{definecolor}\n {\\usepackage{color}}{}\n";
 390         }
 391
 392         else if (name == "graphicx")
 393                 ; // ignore this
 394
 395         else if (name == "setspace")
 396                 ; // ignore this
 397
 398         else if (name == "geometry")
 399                 ; // Ignore this, the geometry settings are made by the \geometry
 400                   // command. This command is handled below.
 401
 402         else if (is_known(name, known_languages)) {
 403                 if (is_known(h_language, known_brazilian_languages))
 404                                 h_language = "brazilian";
 405                 else if (is_known(name, known_french_languages))
 406                         h_language = "french";
 407                 else if (is_known(name, known_german_languages))
 408                         h_language = "german";
 409                 else if (is_known(name, known_ngerman_languages))
 410                         h_language = "ngerman";
 411                 else if (is_known(h_language, known_portuguese_languages))
 412                                 h_language = "portuguese";
 413                 else if (is_known(name, known_russian_languages))
 414                         h_language = "russian";
 415                 else if (is_known(name, known_ukrainian_languages))
 416                         h_language = "ukrainian";
 417                 else
 418                         h_language = name;
 419                 h_quotes_language = h_language;
 420         }
 421
 422         else if (name == "natbib") {
 423                 h_cite_engine = "natbib_authoryear";
 424                 vector<string>::iterator it =
 425                         find(options.begin(), options.end(), "authoryear");
 426                 if (it != options.end())
 427                         options.erase(it);
 428                 else {
 429                         it = find(options.begin(), options.end(), "numbers");
 430                         if (it != options.end()) {
 431                                 h_cite_engine = "natbib_numerical";
 432                                 options.erase(it);
 433                         }
 434                 }
 435         }
 436
 437         else if (name == "jurabib")
 438                 h_cite_engine = "jurabib";
 439
 440         else if (!in_lyx_preamble) {
 441                 if (options.empty())
 442                         h_preamble << "\\usepackage{" << name << "}";
 443                 else {
 444                         h_preamble << "\\usepackage[" << opts << "]{"
 445                                    << name << "}";
 446                         options.clear();
 447                 }
 448         }
 449
 450         // We need to do something with the options...
 451         if (!options.empty())
 452                 cerr << "Ignoring options '" << join(options, ",")
 453                      << "' of package " << name << '.' << endl;
 454
 455         // remove the whitespace
 456         p.skip_spaces();
 457 }
 458
 459
 460
 461 void end_preamble(ostream & os, TextClass const & /*textclass*/)
 462 {
 463         os << "#LyX file created by tex2lyx " << PACKAGE_VERSION << "\n"
 464            << "\\lyxformat 264\n"
 465            << "\\begin_document\n"
 466            << "\\begin_header\n"
 467            << "\\textclass " << h_textclass << "\n";
 468         if (!h_preamble.str().empty())
 469                 os << "\\begin_preamble\n" << h_preamble.str() << "\n\\end_preamble\n";
 470         if (!h_options.empty())
 471                 os << "\\options " << h_options << "\n";
 472         os << "\\language " << h_language << "\n"
 473            << "\\inputencoding " << h_inputencoding << "\n"
 474            << "\\font_roman " << h_font_roman << "\n"
 475            << "\\font_sans " << h_font_sans << "\n"
 476            << "\\font_typewriter " << h_font_typewriter << "\n"
 477            << "\\font_default_family " << h_font_default_family << "\n"
 478            << "\\font_sc " << h_font_sc << "\n"
 479            << "\\font_osf " << h_font_osf << "\n"
 480            << "\\font_sf_scale " << h_font_sf_scale << "\n"
 481            << "\\font_tt_scale " << h_font_tt_scale << "\n"
 482            << "\\graphics " << h_graphics << "\n"
 483            << "\\paperfontsize " << h_paperfontsize << "\n"
 484            << "\\spacing " << h_spacing << "\n"
 485            << "\\papersize " << h_papersize << "\n"
 486            << "\\use_geometry " << h_use_geometry << "\n"
 487            << "\\use_amsmath " << h_use_amsmath << "\n"
 488            << "\\use_esint " << h_use_esint << "\n"
 489            << "\\cite_engine " << h_cite_engine << "\n"
 490            << "\\use_bibtopic " << h_use_bibtopic << "\n"
 491            << "\\paperorientation " << h_paperorientation << "\n"
 492            << h_margins
 493            << "\\secnumdepth " << h_secnumdepth << "\n"
 494            << "\\tocdepth " << h_tocdepth << "\n"
 495            << "\\paragraph_separation " << h_paragraph_separation << "\n"
 496            << "\\defskip " << h_defskip << "\n"
 497            << "\\quotes_language " << h_quotes_language << "\n"
 498            << "\\papercolumns " << h_papercolumns << "\n"
 499            << "\\papersides " << h_papersides << "\n"
 500            << "\\paperpagestyle " << h_paperpagestyle << "\n"
 501            << "\\tracking_changes " << h_tracking_changes << "\n"
 502            << "\\output_changes " << h_output_changes << "\n"
 503            << "\\end_header\n\n"
 504            << "\\begin_body\n";
 505         // clear preamble for subdocuments
 506         h_preamble.str("");
 507 }
 508
 509 } // anonymous namespace
 510
 511 void parse_preamble(Parser & p, ostream & os,
 512         string const & forceclass, TeX2LyXDocClass & tc)
 513 {
 514         // initialize fixed types
 515         special_columns['D'] = 3;
 516         bool is_full_document = false;
 517         bool is_lyx_file = false;
 518         bool in_lyx_preamble = false;
 519
 520         // determine whether this is a full document or a fragment for inclusion
 521         while (p.good()) {
 522                 Token const & t = p.get_token();
 523
 524                 if (t.cat() == catEscape && t.cs() == "documentclass") {
 525                         is_full_document = true;
 526                         break;
 527                 }
 528         }
 529         p.reset();
 530
 531         while (is_full_document && p.good()) {
 532                 Token const & t = p.get_token();
 533
 534 #ifdef FILEDEBUG
 535                 cerr << "t: " << t << "\n";
 536 #endif
 537
 538                 //
 539                 // cat codes
 540                 //
 541                 if (!in_lyx_preamble &&
 542                     (t.cat() == catLetter ||
 543                      t.cat() == catSuper ||
 544                      t.cat() == catSub ||
 545                      t.cat() == catOther ||
 546                      t.cat() == catMath ||
 547                      t.cat() == catActive ||
 548                      t.cat() == catBegin ||
 549                      t.cat() == catEnd ||
 550                      t.cat() == catAlign ||
 551                      t.cat() == catParameter))
 552                         h_preamble << t.character();
 553
 554                 else if (!in_lyx_preamble &&
 555                          (t.cat() == catSpace || t.cat() == catNewline))
 556                         h_preamble << t.asInput();
 557
 558                 else if (t.cat() == catComment) {
 559                         // regex to parse comments (currently not used)
 560                         static regex const islyxfile("%% LyX .* created this file");
 561                         static regex const usercommands("User specified LaTeX commands");
 562
 563                         string const comment = t.asInput();
 564
 565                         // magically switch encoding default if it looks like XeLaTeX
 566                         static string const magicXeLaTeX =
 567                                 "% This document must be compiled with XeLaTeX ";
 568                         if (comment.size() > magicXeLaTeX.size()
 569                                   && comment.substr(0, magicXeLaTeX.size()) == magicXeLaTeX
 570                                   && h_inputencoding == "auto") {
 571                                 cerr << "XeLaTeX comment found, switching to UTF8\n";
 572                                 h_inputencoding = "utf8";
 573                         }
 574                         smatch sub;
 575                         if (regex_search(comment, sub, islyxfile)) {
 576                                 is_lyx_file = true;
 577                                 in_lyx_preamble = true;
 578                         } else if (is_lyx_file
 579                                    && regex_search(comment, sub, usercommands))
 580                                 in_lyx_preamble = false;
 581                         else if (!in_lyx_preamble)
 582                                 h_preamble << t.asInput();
 583                 }
 584
 585                 else if (t.cs() == "pagestyle")
 586                         h_paperpagestyle = p.verbatim_item();
 587
 588                 else if (t.cs() == "makeatletter") {
 589                         // LyX takes care of this
 590                         p.setCatCode('@', catLetter);
 591                 }
 592
 593                 else if (t.cs() == "makeatother") {
 594                         // LyX takes care of this
 595                         p.setCatCode('@', catOther);
 596                 }
 597
 598                 else if (t.cs() == "newcommand" || t.cs() == "renewcommand"
 599                             || t.cs() == "providecommand"
 600                                 || t.cs() == "DeclareRobustCommand"
 601                                 || t.cs() == "ProvideTextCommandDefault"
 602                                 || t.cs() == "DeclareMathAccent") {
 603                         bool star = false;
 604                         if (p.next_token().character() == '*') {
 605                                 p.get_token();
 606                                 star = true;
 607                         }
 608                         string const name = p.verbatim_item();
 609                         string const opt1 = p.getOpt();
 610                         string const opt2 = p.getFullOpt();
 611                         string const body = p.verbatim_item();
 612                         // font settings
 613                         if (name == "\\rmdefault")
 614                                 if (is_known(body, known_roman_fonts))
 615                                         h_font_roman = body;
 616                         if (name == "\\sfdefault")
 617                                 if (is_known(body, known_sans_fonts))
 618                                         h_font_sans = body;
 619                         if (name == "\\ttdefault")
 620                                 if (is_known(body, known_typewriter_fonts))
 621                                         h_font_typewriter = body;
 622                         if (name == "\\familydefault") {
 623                                 string family = body;
 624                                 // remove leading "\"
 625                                 h_font_default_family = family.erase(0,1);
 626                         }
 627                         // only non-lyxspecific stuff
 628                         if (!in_lyx_preamble) {
 629                                 ostringstream ss;
 630                                 ss << '\\' << t.cs();
 631                                 if (star)
 632                                         ss << '*';
 633                                 ss << '{' << name << '}' << opt1 << opt2
 634                                    << '{' << body << "}";
 635                                 h_preamble << ss.str();
 636
 637                                 // Add the command to the known commands
 638                                 add_known_command(name, opt1, !opt2.empty());
 639 /*
 640                                 ostream & out = in_preamble ? h_preamble : os;
 641                                 out << "\\" << t.cs() << "{" << name << "}"
 642                                     << opts << "{" << body << "}";
 643 */
 644                         }
 645                 }
 646
 647                 else if (t.cs() == "documentclass") {
 648                         vector<string>::iterator it;
 649                         vector<string> opts = split_options(p.getArg('[', ']'));
 650                         handle_opt(opts, known_fontsizes, h_paperfontsize);
 651                         delete_opt(opts, known_fontsizes);
 652                         // delete "pt" at the end
 653                         string::size_type i = h_paperfontsize.find("pt");
 654                         if (i != string::npos)
 655                                 h_paperfontsize.erase(i);
 656                         // to avoid that the babel options overwrite the documentclass options
 657                         documentclass_language =
 658                                 handle_opt(opts, known_languages, h_language);
 659                         delete_opt(opts, known_languages);
 660                         if (is_known(h_language, known_brazilian_languages))
 661                                 h_language = "brazilian";
 662                         else if (is_known(h_language, known_french_languages))
 663                                 h_language = "french";
 664                         else if (is_known(h_language, known_german_languages))
 665                                 h_language = "german";
 666                         else if (is_known(h_language, known_ngerman_languages))
 667                                 h_language = "ngerman";
 668                         else if (is_known(h_language, known_portuguese_languages))
 669                                 h_language = "portuguese";
 670                         else if (is_known(h_language, known_russian_languages))
 671                                 h_language = "russian";
 672                         else if (is_known(h_language, known_ukrainian_languages))
 673                                 h_language = "ukrainian";
 674                         h_quotes_language = h_language;
 675                         // paper orientation
 676                         if ((it = find(opts.begin(), opts.end(), "landscape")) != opts.end()) {
 677                                 h_paperorientation = "landscape";
 678                                 opts.erase(it);
 679                         }
 680                         // paper sides
 681                         if ((it = find(opts.begin(), opts.end(), "oneside"))
 682                                  != opts.end()) {
 683                                 h_papersides = "1";
 684                                 opts.erase(it);
 685                         }
 686                         if ((it = find(opts.begin(), opts.end(), "twoside"))
 687                                  != opts.end()) {
 688                                 h_papersides = "2";
 689                                 opts.erase(it);
 690                         }
 691                         // paper columns
 692                         if ((it = find(opts.begin(), opts.end(), "onecolumn"))
 693                                  != opts.end()) {
 694                                 h_papercolumns = "1";
 695                                 opts.erase(it);
 696                         }
 697                         if ((it = find(opts.begin(), opts.end(), "twocolumn"))
 698                                  != opts.end()) {
 699                                 h_papercolumns = "2";
 700                                 opts.erase(it);
 701                         }
 702                         // paper sizes
 703                         // some size options are know to any document classes, other sizes
 704                         // are handled by the \geometry command of the geometry package
 705                         handle_opt(opts, known_class_paper_sizes, h_papersize);
 706                         delete_opt(opts, known_class_paper_sizes);
 707                         // the remaining options
 708                         h_options = join(opts, ",");
 709                         h_textclass = p.getArg('{', '}');
 710                 }
 711
 712                 else if (t.cs() == "usepackage") {
 713                         string const options = p.getArg('[', ']');
 714                         string const name = p.getArg('{', '}');
 715                         vector<string> vecnames;
 716                         split(name, vecnames, ',');
 717                         vector<string>::const_iterator it  = vecnames.begin();
 718                         vector<string>::const_iterator end = vecnames.end();
 719                         for (; it != end; ++it)
 720                                 handle_package(p, trim(*it), options,
 721                                                in_lyx_preamble);
 722                 }
 723
 724                 else if (t.cs() == "inputencoding") {
 725                         string const encoding = p.getArg('{','}');
 726                         h_inputencoding = encoding;
 727                         p.setEncoding(encoding);
 728                 }
 729
 730                 else if (t.cs() == "newenvironment") {
 731                         string const name = p.getArg('{', '}');
 732                         ostringstream ss;
 733                         ss << "\\newenvironment{" << name << "}";
 734                         ss << p.getOpt();
 735                         ss << p.getOpt();
 736                         ss << '{' << p.verbatim_item() << '}';
 737                         ss << '{' << p.verbatim_item() << '}';
 738                         if (!in_lyx_preamble)
 739                                 h_preamble << ss.str();
 740                 }
 741
 742                 else if (t.cs() == "def") {
 743                         string name = p.get_token().cs();
 744                         while (p.next_token().cat() != catBegin)
 745                                 name += p.get_token().asString();
 746                         if (!in_lyx_preamble)
 747                                 h_preamble << "\\def\\" << name << '{'
 748                                            << p.verbatim_item() << "}";
 749                 }
 750
 751                 else if (t.cs() == "newcolumntype") {
 752                         string const name = p.getArg('{', '}');
 753                         trim(name);
 754                         int nargs = 0;
 755                         string opts = p.getOpt();
 756                         if (!opts.empty()) {
 757                                 istringstream is(string(opts, 1));
 758                                 is >> nargs;
 759                         }
 760                         special_columns[name[0]] = nargs;
 761                         h_preamble << "\\newcolumntype{" << name << "}";
 762                         if (nargs)
 763                                 h_preamble << "[" << nargs << "]";
 764                         h_preamble << "{" << p.verbatim_item() << "}";
 765                 }
 766
 767                 else if (t.cs() == "setcounter") {
 768                         string const name = p.getArg('{', '}');
 769                         string const content = p.getArg('{', '}');
 770                         if (name == "secnumdepth")
 771                                 h_secnumdepth = content;
 772                         else if (name == "tocdepth")
 773                                 h_tocdepth = content;
 774                         else
 775                                 h_preamble << "\\setcounter{" << name << "}{" << content << "}";
 776                 }
 777
 778                 else if (t.cs() == "setlength") {
 779                         string const name = p.verbatim_item();
 780                         string const content = p.verbatim_item();
 781                         // the paragraphs are only not indented when \parindent is set to zero
 782                         if (name == "\\parindent" && content != "") {
 783                                 if (content[0] == '0')
 784                                         h_paragraph_separation = "skip";
 785                         } else if (name == "\\parskip") {
 786                                 if (content == "\\smallskipamount")
 787                                         h_defskip = "smallskip";
 788                                 else if (content == "\\medskipamount")
 789                                         h_defskip = "medskip";
 790                                 else if (content == "\\bigskipamount")
 791                                         h_defskip = "bigskip";
 792                                 else
 793                                         h_defskip = content;
 794                         } else
 795                                 h_preamble << "\\setlength{" << name << "}{" << content << "}";
 796                 }
 797
 798                 else if (t.cs() == "onehalfspacing")
 799                         h_spacing = "onehalf";
 800
 801                 else if (t.cs() == "doublespacing")
 802                         h_spacing = "double";
 803
 804                 else if (t.cs() == "setstretch")
 805                         h_spacing = "other " + p.verbatim_item();
 806
 807                 else if (t.cs() == "begin") {
 808                         string const name = p.getArg('{', '}');
 809                         if (name == "document")
 810                                 break;
 811                         h_preamble << "\\begin{" << name << "}";
 812                 }
 813
 814                 else if (t.cs() == "geometry") {
 815                         h_use_geometry = "true";
 816                         vector<string> opts = split_options(p.getArg('{', '}'));
 817                         vector<string>::iterator it;
 818                         // paper orientation
 819                         if ((it = find(opts.begin(), opts.end(), "landscape")) != opts.end()) {
 820                                 h_paperorientation = "landscape";
 821                                 opts.erase(it);
 822                         }
 823                         // paper size
 824                         handle_opt(opts, known_paper_sizes, h_papersize);
 825                         delete_opt(opts, known_paper_sizes);
 826                         // page margins
 827                         char const * const * margin = known_paper_margins;
 828                         int k = -1;
 829                         for (; *margin; ++margin) {
 830                                 k += 1;
 831                                 // search for the "=" in e.g. "lmargin=2cm" to get the value
 832                                 for(size_t i = 0; i != opts.size(); i++) {
 833                                         if (opts.at(i).find(*margin) != string::npos) {
 834                                                 string::size_type pos = opts.at(i).find("=");
 835                                                 string value = opts.at(i).substr(pos + 1);
 836                                                 string name = known_coded_paper_margins[k];
 837                                                 h_margins += "\\" + name + " " + value + "\n";
 838                                         }
 839                                 }
 840                         }
 841                 }
 842
 843                 else if (t.cs() == "jurabibsetup") {
 844                         vector<string> jurabibsetup =
 845                                 split_options(p.getArg('{', '}'));
 846                         // add jurabibsetup to the jurabib package options
 847                         add_package("jurabib", jurabibsetup);
 848                         if (!jurabibsetup.empty()) {
 849                                 h_preamble << "\\jurabibsetup{"
 850                                            << join(jurabibsetup, ",") << '}';
 851                         }
 852                 }
 853
 854                 else if (!t.cs().empty() && !in_lyx_preamble)
 855                         h_preamble << '\\' << t.cs();
 856
 857                 // remove the whitespace
 858                 p.skip_spaces();
 859         }
 860
 861         // remove the whitespace
 862         p.skip_spaces();
 863
 864         // Force textclass if the user wanted it
 865         if (!forceclass.empty())
 866                 h_textclass = forceclass;
 867         if (noweb_mode && !prefixIs(h_textclass, "literate-"))
 868                 h_textclass.insert(0, "literate-");
 869         FileName layoutfilename = libFileSearch("layouts", h_textclass, "layout");
 870         if (layoutfilename.empty()) {
 871                 cerr << "Error: Could not find layout file for textclass \"" << h_textclass << "\"." << endl;
 872                 exit(1);
 873         }
 874         tc.read(layoutfilename);
 875         if (h_papersides.empty()) {
 876                 ostringstream ss;
 877                 ss << tc.sides();
 878                 h_papersides = ss.str();
 879         }
 880         end_preamble(os, tc);
 881 }
 882
 883 // }])
 884
 885
 886 } // namespace lyx