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 namespace {
  53
  54 const char * const known_languages[] = { "afrikaans", "american", "arabic",
  55 "austrian", "bahasa", "basque", "belarusian", "brazil", "brazilian", "breton",
  56 "british", "bulgarian", "canadian", "canadien", "catalan", "croatian", "czech",
  57 "danish", "dutch", "english", "esperanto", "estonian", "finnish", "francais",
  58 "french", "frenchb", "frenchle", "frenchpro", "galician", "german", "germanb",
  59 "greek", "hebrew", "icelandic", "irish", "italian", "lsorbian", "magyar",
  60 "naustrian", "ngerman", "ngermanb", "norsk", "nynorsk", "polish", "portuges",
  61 "portuguese", "romanian", "russian", "russianb", "scottish", "serbian", "slovak",
  62 "slovene", "spanish", "swedish", "thai", "turkish", "ukraineb", "ukrainian",
  63 "usorbian", "welsh", 0};
  64
  65 //note this when updating to lyxformat 305:
  66 //bahasai, indonesian, and indon = equal to bahasa
  67 //malay and meyalu = equal to bahasam
  68
  69 const char * const known_brazilian_languages[] = {"brazil", "brazilian", 0};
  70 const char * const known_french_languages[] = {"french", "frenchb", "francais",
  71                                                 "frenchle", "frenchpro", 0};
  72 const char * const known_german_languages[] = {"german", "germanb", 0};
  73 const char * const known_ngerman_languages[] = {"ngerman", "ngermanb", 0};
  74 const char * const known_portuguese_languages[] = {"portuges", "portuguese", 0};
  75 const char * const known_russian_languages[] = {"russian", "russianb", 0};
  76 const char * const known_ukrainian_languages[] = {"ukrainian", "ukraineb", 0};
  77
  78 char const * const known_fontsizes[] = { "10pt", "11pt", "12pt", 0 };
  79
  80 const char * const known_roman_fonts[] = { "ae", "bookman", "charter",
  81 "cmr", "fourier", "lmodern", "mathpazo", "mathptmx", "newcent", 0};
  82
  83 const char * const known_sans_fonts[] = { "avant", "berasans", "cmbr", "cmss",
  84 "helvet", "lmss", 0};
  85
  86 const char * const known_typewriter_fonts[] = { "beramono", "cmtl", "cmtt",
  87 "courier", "lmtt", "luximono", "fourier", "lmodern", "mathpazo", "mathptmx",
  88 "newcent", 0};
  89
  90 const char * const known_paper_sizes[] = { "a3paper", "b3paper", "a4paper",
  91 "b4paper", "a5paper", "b5paper", "executivepaper", "legalpaper",
  92 "letterpaper", 0};
  93
  94 const char * const known_class_paper_sizes[] = { "a4paper", "a5paper",
  95 "executivepaper", "legalpaper", "letterpaper", 0};
  96
  97 const char * const known_paper_margins[] = { "lmargin", "tmargin", "rmargin",
  98 "bmargin", "headheight", "headsep", "footskip", "columnsep", 0};
  99
 100 const char * const known_coded_paper_margins[] = { "leftmargin", "topmargin",
 101 "rightmargin", "bottommargin", "headheight", "headsep", "footskip",
 102 "columnsep", 0};
 103
 104 // default settings
 105 ostringstream h_preamble;
 106 string h_textclass               = "article";
 107 string h_options                 = string();
 108 string h_language                = "english";
 109 string h_inputencoding           = "auto";
 110 string h_font_roman              = "default";
 111 string h_font_sans               = "default";
 112 string h_font_typewriter         = "default";
 113 string h_font_default_family     = "default";
 114 string h_font_sc                 = "false";
 115 string h_font_osf                = "false";
 116 string h_font_sf_scale           = "100";
 117 string h_font_tt_scale           = "100";
 118 string h_graphics                = "default";
 119 string h_paperfontsize           = "default";
 120 string h_spacing                 = "single";
 121 string h_papersize               = "default";
 122 string h_use_geometry            = "false";
 123 string h_use_amsmath             = "1";
 124 string h_use_esint               = "1";
 125 string h_cite_engine             = "basic";
 126 string h_use_bibtopic            = "false";
 127 string h_paperorientation        = "portrait";
 128 string h_secnumdepth             = "3";
 129 string h_tocdepth                = "3";
 130 string h_paragraph_separation    = "indent";
 131 string h_defskip                 = "medskip";
 132 string h_quotes_language         = "english";
 133 string h_papercolumns            = "1";
 134 string h_papersides              = string();
 135 string h_paperpagestyle          = "default";
 136 string h_tracking_changes        = "false";
 137 string h_output_changes          = "false";
 138 string h_margins                 = "";
 139
 140 // returns true if at least one of the options in what has been found
 141 bool handle_opt(vector<string> & opts, char const * const * what, string & target)
 142 {
 143         if (opts.empty())
 144                 return false;
 145
 146         bool found = false;
 147         // the last language option is the document language (for babel and LyX)
 148         // the last size option is the document font size
 149         vector<string>::iterator it;
 150         vector<string>::iterator position = opts.begin();
 151         for (; *what; ++what) {
 152                 it = find(opts.begin(), opts.end(), *what);
 153                 if (it != opts.end()) {
 154                         if (it >= position) {
 155                                 found = true;
 156                                 target = *what;
 157                                 position = it;
 158                         }
 159                 }
 160         }
 161         return found;
 162 }
 163
 164
 165 void delete_opt(vector<string> & opts, char const * const * what)
 166 {
 167         if (opts.empty())
 168                 return;
 169
 170         // remove found options from the list
 171         // do this after handle_opt to avoid potential memory leaks
 172         vector<string>::iterator it;
 173         for (; *what; ++what) {
 174                 it = find(opts.begin(), opts.end(), *what);
 175                 if (it != opts.end())
 176                         opts.erase(it);
 177         }
 178 }
 179
 180
 181 /*!
 182  * Split a package options string (keyval format) into a vector.
 183  * Example input:
 184  *   authorformat=smallcaps,
 185  *   commabeforerest,
 186  *   titleformat=colonsep,
 187  *   bibformat={tabular,ibidem,numbered}
 188  */
 189 vector<string> split_options(string const & input)
 190 {
 191         vector<string> options;
 192         string option;
 193         Parser p(input);
 194         while (p.good()) {
 195                 Token const & t = p.get_token();
 196                 if (t.asInput() == ",") {
 197                         options.push_back(trim(option));
 198                         option.erase();
 199                 } else if (t.asInput() == "=") {
 200                         option += '=';
 201                         p.skip_spaces(true);
 202                         if (p.next_token().asInput() == "{")
 203                                 option += '{' + p.getArg('{', '}') + '}';
 204                 } else if (t.cat() != catSpace)
 205                         option += t.asInput();
 206         }
 207
 208         if (!option.empty())
 209                 options.push_back(trim(option));
 210
 211         return options;
 212 }
 213
 214
 215 /*!
 216  * Add package \p name with options \p options to used_packages.
 217  * Remove options from \p options that we don't want to output.
 218  */
 219 void add_package(string const & name, vector<string> & options)
 220 {
 221         // every package inherits the global options
 222         if (used_packages.find(name) == used_packages.end())
 223                 used_packages[name] = split_options(h_options);
 224
 225         vector<string> & v = used_packages[name];
 226         v.insert(v.end(), options.begin(), options.end());
 227         if (name == "jurabib") {
 228                 // Don't output the order argument (see the cite command
 229                 // handling code in text.cpp).
 230                 vector<string>::iterator end =
 231                         remove(options.begin(), options.end(), "natbiborder");
 232                 end = remove(options.begin(), end, "jurabiborder");
 233                 options.erase(end, options.end());
 234         }
 235 }
 236
 237
 238 // Given is a string like "scaled=0.9", return 0.9 * 100
 239 string const scale_as_percentage(string const & scale)
 240 {
 241         string::size_type pos = scale.find('=');
 242         if (pos != string::npos) {
 243                 string value = scale.substr(pos + 1);
 244                 if (isStrDbl(value))
 245                         return convert<string>(100 * convert<double>(value));
 246         }
 247         // If the input string didn't match our expectations.
 248         // return the default value "100"
 249         return "100";
 250 }
 251
 252
 253 void handle_package(Parser &p, string const & name, string const & opts,
 254                     bool in_lyx_preamble)
 255 {
 256         vector<string> options = split_options(opts);
 257         add_package(name, options);
 258         string scale;
 259
 260         // roman fonts
 261         if (is_known(name, known_roman_fonts)) {
 262                 h_font_roman = name;
 263                 p.skip_spaces();
 264         }
 265
 266         if (name == "fourier") {
 267                 h_font_roman = "utopia";
 268                 // when font uses real small capitals
 269                 if (opts == "expert")
 270                         h_font_sc = "true";
 271         }
 272
 273         if (name == "mathpazo")
 274                 h_font_roman = "palatino";
 275
 276         if (name == "mathptmx")
 277                 h_font_roman = "times";
 278
 279         // sansserif fonts
 280         if (is_known(name, known_sans_fonts)) {
 281                 h_font_sans = name;
 282                 if (!opts.empty()) {
 283                         scale = opts;
 284                         h_font_sf_scale = scale_as_percentage(scale);
 285                 }
 286         }
 287
 288         // typewriter fonts
 289         if (is_known(name, known_typewriter_fonts)) {
 290                 h_font_typewriter = name;
 291                 if (!opts.empty()) {
 292                         scale = opts;
 293                         h_font_tt_scale = scale_as_percentage(scale);
 294                 }
 295         }
 296
 297         // font uses old-style figure
 298         if (name == "eco")
 299                 h_font_osf = "true";
 300
 301         else if (name == "amsmath" || name == "amssymb")
 302                 h_use_amsmath = "2";
 303
 304         else if (name == "esint")
 305                 h_use_esint = "2";
 306
 307         else if (name == "babel" && !opts.empty()) {
 308                 // check if more than one option was used - used later for inputenc
 309                 // in case inputenc is parsed before babel, set the encoding to auto
 310                 if (options.begin() != options.end() - 1) {
 311                         one_language = false;
 312                         h_inputencoding = "auto";
 313                 }
 314                 // babel takes the last language of the option of its \usepackage
 315                 // call as document language. If there is no such language option, the
 316                 // last language in the documentclass options is used.
 317                 handle_opt(options, known_languages, h_language);
 318                 delete_opt(options, known_languages);
 319                 if (is_known(h_language, known_brazilian_languages))
 320                         h_language = "brazilian";
 321                 else if (is_known(h_language, known_french_languages))
 322                         h_language = "french";
 323                 else if (is_known(h_language, known_german_languages))
 324                         h_language = "german";
 325                 else if (is_known(h_language, known_ngerman_languages))
 326                         h_language = "ngerman";
 327                 else if (is_known(h_language, known_portuguese_languages))
 328                         h_language = "portuguese";
 329                 else if (is_known(h_language, known_russian_languages))
 330                         h_language = "russian";
 331                 else if (is_known(h_language, known_ukrainian_languages))
 332                         h_language = "ukrainian";
 333                 h_quotes_language = h_language;
 334                 // there is only the quotes language "german"
 335                 if (h_quotes_language == "ngerman")
 336                         h_quotes_language = "german";
 337         }
 338
 339         else if (name == "fontenc")
 340                  ;// ignore this
 341
 342         else if (name == "inputenc") {
 343                 // h_inputencoding is only set when there is not more than one
 344                 // inputenc option because otherwise h_inputencoding must be
 345                 // set to "auto" (the default encoding of the document language)
 346                 // Therefore check for the "," character.
 347                 // It is also only set when there is not more then one babel
 348                 // language option but this is handled in the routine for babel.
 349                 if (opts.find(",") == string::npos && one_language == true) {
 350                         if (opts == "ascii")
 351                                 //change ascii to auto to be in the unicode range, see
 352                                 //http://www.lyx.org/trac/ticket/4719
 353                                 h_inputencoding = "auto";
 354                         else if (!opts.empty())
 355                                 h_inputencoding = opts;
 356                 }
 357                 if (!options.empty())
 358                         p.setEncoding(options.back());
 359                 options.clear();
 360         }
 361
 362         else if (name == "makeidx")
 363                 ; // ignore this
 364
 365         else if (name == "prettyref")
 366                 ; // ignore this
 367
 368         else if (name == "varioref")
 369                 ; // ignore this
 370
 371         else if (name == "verbatim")
 372                 ; // ignore this
 373
 374         else if (name == "nomencl")
 375                 ; // ignore this
 376
 377         else if (name == "textcomp")
 378                 ; // ignore this
 379
 380         else if (name == "url")
 381                 ; // ignore this
 382
 383         else if (name == "color") {
 384                 // with the following command this package is only loaded when needed for
 385                 // undefined colors, since we only support the predefined colors
 386                 h_preamble << "\\@ifundefined{definecolor}\n {\\usepackage{color}}{}\n";
 387         }
 388
 389         else if (name == "graphicx")
 390                 ; // ignore this
 391
 392         else if (name == "setspace")
 393                 ; // ignore this
 394
 395         else if (name == "geometry")
 396                 ; // Ignore this, the geometry settings are made by the \geometry
 397                   // command. This command is handled below.
 398
 399         else if (is_known(name, known_languages)) {
 400                 if (is_known(h_language, known_brazilian_languages))
 401                                 h_language = "brazilian";
 402                 else if (is_known(name, known_french_languages))
 403                         h_language = "french";
 404                 else if (is_known(name, known_german_languages))
 405                         h_language = "german";
 406                 else if (is_known(name, known_ngerman_languages))
 407                         h_language = "ngerman";
 408                 else if (is_known(h_language, known_portuguese_languages))
 409                                 h_language = "portuguese";
 410                 else if (is_known(name, known_russian_languages))
 411                         h_language = "russian";
 412                 else if (is_known(name, known_ukrainian_languages))
 413                         h_language = "ukrainian";
 414                 else
 415                         h_language = name;
 416                 h_quotes_language = h_language;
 417                 // there is only the quotes language "german"
 418                 if (h_quotes_language == "ngerman")
 419                         h_quotes_language = "german";
 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.cs();
 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                         // The documentclass options are always parsed before the options
 657                         // of the babel call so that a language cannot overwrite the babel
 658                         // options.
 659                         handle_opt(opts, known_languages, h_language);
 660                         delete_opt(opts, known_languages);
 661                         if (is_known(h_language, known_brazilian_languages))
 662                                 h_language = "brazilian";
 663                         else if (is_known(h_language, known_french_languages))
 664                                 h_language = "french";
 665                         else if (is_known(h_language, known_german_languages))
 666                                 h_language = "german";
 667                         else if (is_known(h_language, known_ngerman_languages))
 668                                 h_language = "ngerman";
 669                         else if (is_known(h_language, known_portuguese_languages))
 670                                 h_language = "portuguese";
 671                         else if (is_known(h_language, known_russian_languages))
 672                                 h_language = "russian";
 673                         else if (is_known(h_language, known_ukrainian_languages))
 674                                 h_language = "ukrainian";
 675                         h_quotes_language = h_language;
 676                         // paper orientation
 677                         if ((it = find(opts.begin(), opts.end(), "landscape")) != opts.end()) {
 678                                 h_paperorientation = "landscape";
 679                                 opts.erase(it);
 680                         }
 681                         // paper sides
 682                         if ((it = find(opts.begin(), opts.end(), "oneside"))
 683                                  != opts.end()) {
 684                                 h_papersides = "1";
 685                                 opts.erase(it);
 686                         }
 687                         if ((it = find(opts.begin(), opts.end(), "twoside"))
 688                                  != opts.end()) {
 689                                 h_papersides = "2";
 690                                 opts.erase(it);
 691                         }
 692                         // paper columns
 693                         if ((it = find(opts.begin(), opts.end(), "onecolumn"))
 694                                  != opts.end()) {
 695                                 h_papercolumns = "1";
 696                                 opts.erase(it);
 697                         }
 698                         if ((it = find(opts.begin(), opts.end(), "twocolumn"))
 699                                  != opts.end()) {
 700                                 h_papercolumns = "2";
 701                                 opts.erase(it);
 702                         }
 703                         // paper sizes
 704                         // some size options are know to any document classes, other sizes
 705                         // are handled by the \geometry command of the geometry package
 706                         handle_opt(opts, known_class_paper_sizes, h_papersize);
 707                         delete_opt(opts, known_class_paper_sizes);
 708                         // the remaining options
 709                         h_options = join(opts, ",");
 710                         h_textclass = p.getArg('{', '}');
 711                 }
 712
 713                 else if (t.cs() == "usepackage") {
 714                         string const options = p.getArg('[', ']');
 715                         string const name = p.getArg('{', '}');
 716                         vector<string> vecnames;
 717                         split(name, vecnames, ',');
 718                         vector<string>::const_iterator it  = vecnames.begin();
 719                         vector<string>::const_iterator end = vecnames.end();
 720                         for (; it != end; ++it)
 721                                 handle_package(p, trim(*it), options,
 722                                                in_lyx_preamble);
 723                 }
 724
 725                 else if (t.cs() == "inputencoding") {
 726                         string const encoding = p.getArg('{','}');
 727                         h_inputencoding = encoding;
 728                         p.setEncoding(encoding);
 729                 }
 730
 731                 else if (t.cs() == "newenvironment") {
 732                         string const name = p.getArg('{', '}');
 733                         ostringstream ss;
 734                         ss << "\\newenvironment{" << name << "}";
 735                         ss << p.getOpt();
 736                         ss << p.getOpt();
 737                         ss << '{' << p.verbatim_item() << '}';
 738                         ss << '{' << p.verbatim_item() << '}';
 739                         if (!in_lyx_preamble)
 740                                 h_preamble << ss.str();
 741                 }
 742
 743                 else if (t.cs() == "def") {
 744                         string name = p.get_token().cs();
 745                         while (p.next_token().cat() != catBegin)
 746                                 name += p.get_token().cs();
 747                         if (!in_lyx_preamble)
 748                                 h_preamble << "\\def\\" << name << '{'
 749                                            << p.verbatim_item() << "}";
 750                 }
 751
 752                 else if (t.cs() == "newcolumntype") {
 753                         string const name = p.getArg('{', '}');
 754                         trim(name);
 755                         int nargs = 0;
 756                         string opts = p.getOpt();
 757                         if (!opts.empty()) {
 758                                 istringstream is(string(opts, 1));
 759                                 is >> nargs;
 760                         }
 761                         special_columns[name[0]] = nargs;
 762                         h_preamble << "\\newcolumntype{" << name << "}";
 763                         if (nargs)
 764                                 h_preamble << "[" << nargs << "]";
 765                         h_preamble << "{" << p.verbatim_item() << "}";
 766                 }
 767
 768                 else if (t.cs() == "setcounter") {
 769                         string const name = p.getArg('{', '}');
 770                         string const content = p.getArg('{', '}');
 771                         if (name == "secnumdepth")
 772                                 h_secnumdepth = content;
 773                         else if (name == "tocdepth")
 774                                 h_tocdepth = content;
 775                         else
 776                                 h_preamble << "\\setcounter{" << name << "}{" << content << "}";
 777                 }
 778
 779                 else if (t.cs() == "setlength") {
 780                         string const name = p.verbatim_item();
 781                         string const content = p.verbatim_item();
 782                         // the paragraphs are only not indented when \parindent is set to zero
 783                         if (name == "\\parindent" && content != "") {
 784                                 if (content[0] == '0')
 785                                         h_paragraph_separation = "skip";
 786                         } else if (name == "\\parskip") {
 787                                 if (content == "\\smallskipamount")
 788                                         h_defskip = "smallskip";
 789                                 else if (content == "\\medskipamount")
 790                                         h_defskip = "medskip";
 791                                 else if (content == "\\bigskipamount")
 792                                         h_defskip = "bigskip";
 793                                 else
 794                                         h_defskip = content;
 795                         } else
 796                                 h_preamble << "\\setlength{" << name << "}{" << content << "}";
 797                 }
 798
 799                 else if (t.cs() == "onehalfspacing")
 800                         h_spacing = "onehalf";
 801
 802                 else if (t.cs() == "doublespacing")
 803                         h_spacing = "double";
 804
 805                 else if (t.cs() == "setstretch")
 806                         h_spacing = "other " + p.verbatim_item();
 807
 808                 else if (t.cs() == "begin") {
 809                         string const name = p.getArg('{', '}');
 810                         if (name == "document")
 811                                 break;
 812                         h_preamble << "\\begin{" << name << "}";
 813                 }
 814
 815                 else if (t.cs() == "geometry") {
 816                         h_use_geometry = "true";
 817                         vector<string> opts = split_options(p.getArg('{', '}'));
 818                         vector<string>::iterator it;
 819                         // paper orientation
 820                         if ((it = find(opts.begin(), opts.end(), "landscape")) != opts.end()) {
 821                                 h_paperorientation = "landscape";
 822                                 opts.erase(it);
 823                         }
 824                         // paper size
 825                         handle_opt(opts, known_paper_sizes, h_papersize);
 826                         delete_opt(opts, known_paper_sizes);
 827                         // page margins
 828                         char const * const * margin = known_paper_margins;
 829                         int k = -1;
 830                         for (; *margin; ++margin) {
 831                                 k += 1;
 832                                 // search for the "=" in e.g. "lmargin=2cm" to get the value
 833                                 for(size_t i = 0; i != opts.size(); i++) {
 834                                         if (opts.at(i).find(*margin) != string::npos) {
 835                                                 string::size_type pos = opts.at(i).find("=");
 836                                                 string value = opts.at(i).substr(pos + 1);
 837                                                 string name = known_coded_paper_margins[k];
 838                                                 h_margins += "\\" + name + " " + value + "\n";
 839                                         }
 840                                 }
 841                         }
 842                 }
 843
 844                 else if (t.cs() == "jurabibsetup") {
 845                         vector<string> jurabibsetup =
 846                                 split_options(p.getArg('{', '}'));
 847                         // add jurabibsetup to the jurabib package options
 848                         add_package("jurabib", jurabibsetup);
 849                         if (!jurabibsetup.empty()) {
 850                                 h_preamble << "\\jurabibsetup{"
 851                                            << join(jurabibsetup, ",") << '}';
 852                         }
 853                 }
 854
 855                 else if (!t.cs().empty() && !in_lyx_preamble)
 856                         h_preamble << '\\' << t.cs();
 857
 858                 // remove the whitespace
 859                 p.skip_spaces();
 860         }
 861
 862         // remove the whitespace
 863         p.skip_spaces();
 864
 865         // Force textclass if the user wanted it
 866         if (!forceclass.empty())
 867                 h_textclass = forceclass;
 868         if (noweb_mode && !prefixIs(h_textclass, "literate-"))
 869                 h_textclass.insert(0, "literate-");
 870         FileName layoutfilename = libFileSearch("layouts", h_textclass, "layout");
 871         if (layoutfilename.empty()) {
 872                 cerr << "Error: Could not find layout file for textclass \"" << h_textclass << "\"." << endl;
 873                 exit(1);
 874         }
 875         tc.read(layoutfilename);
 876         if (h_papersides.empty()) {
 877                 ostringstream ss;
 878                 ss << tc.sides();
 879                 h_papersides = ss.str();
 880         }
 881         end_preamble(os, tc);
 882 }
 883
 884 // }])
 885
 886
 887 } // namespace lyx