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 "support/regex.h"
  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
  40
  41 namespace lyx {
  42
  43 // special columntypes
  44 extern map<char, int> special_columns;
  45
  46 map<string, vector<string> > used_packages;
  47 const char * const modules_placeholder = "\001modules\001";
  48
  49 // needed to handle encodings with babel
  50 bool one_language = true;
  51 string h_inputencoding = "auto";
  52 string h_paragraph_separation = "indent";
  53
  54 // necessary to avoid that our preamble stuff is added at each tex2lyx run
  55 // which would pollute the preamble when doing roundtrips
  56 bool ifundefined_color_set = false;
  57
  58 namespace {
  59
  60 //add this to known_languages when updating to lyxformat 266:
  61 // "armenian" (needs special handling since not supported by standard babel)
  62 //add these to known_languages when updating to lyxformat 268:
  63 //"chinese-simplified", "chinese-traditional", "japanese", "korean"
  64 // Both changes require first that support for non-babel languages (CJK,
  65 // armtex) is added.
  66 // add turkmen for lyxformat 383
  67 /**
  68  * known babel language names (including synonyms)
  69  * not in standard babel: arabic, arabtex, armenian, belarusian, serbian-latin, thai
  70  * not yet supported by LyX: kurmanji
  71  * please keep this in sync with known_coded_languages line by line!
  72  */
  73 const char * const known_languages[] = {"acadian", "afrikaans", "albanian",
  74 "american", "arabic", "arabtex", "austrian", "bahasa", "bahasai", "bahasam",
  75 "basque", "belarusian", "brazil", "brazilian", "breton", "british", "bulgarian",
  76 "canadian", "canadien", "catalan", "croatian", "czech", "danish", "dutch",
  77 "english", "esperanto", "estonian", "farsi", "finnish", "francais", "french",
  78 "frenchb", "frenchle", "frenchpro", "galician", "german", "germanb", "greek",
  79 "hebrew", "hungarian", "icelandic", "indon", "indonesian", "interlingua",
  80 "irish", "italian", "kazakh", "latin", "latvian", "lithuanian", "lowersorbian",
  81 "lsorbian", "magyar", "malay", "meyalu", "mongolian", "naustrian", "newzealand",
  82 "ngerman", "ngermanb", "norsk", "nynorsk", "polutonikogreek", "polish",
  83 "portuges", "portuguese", "romanian", "russian", "russianb", "samin",
  84 "scottish", "serbian", "serbian-latin", "slovak", "slovene", "spanish",
  85 "swedish", "thai", "turkish", "turkmen", "ukraineb", "ukrainian",
  86 "uppersorbian", "UKenglish", "USenglish", "usorbian", "vietnam", "welsh",
  87 0};
  88
  89 /**
  90  * the same as known_languages with .lyx names
  91  * please keep this in sync with known_languages line by line!
  92  */
  93 const char * const known_coded_languages[] = {"french", "afrikaans", "albanian",
  94 "american", "arabic_arabi", "arabic_arabtex", "austrian", "bahasa", "bahasa", "bahasam",
  95 "basque", "belarusian", "brazilian", "brazilian", "breton", "british", "bulgarian",
  96 "canadian", "canadien", "catalan", "croatian", "czech", "danish", "dutch",
  97 "english", "esperanto", "estonian", "farsi", "finnish", "french", "french",
  98 "french", "french", "french", "galician", "german", "german", "greek",
  99 "hebrew", "magyar", "icelandic", "bahasa", "bahasa", "interlingua",
 100 "irish", "italian", "kazakh", "latin", "latvian", "lithuanian", "lowersorbian",
 101 "lowersorbian", "magyar", "bahasam", "bahasam", "mongolian", "naustrian", "english",
 102 "ngerman", "ngerman", "norsk", "nynorsk", "polutonikogreek", "polish",
 103 "portuguese", "portuguese", "romanian", "russian", "russian", "samin",
 104 "scottish", "serbian", "serbian-latin", "slovak", "slovene", "spanish",
 105 "swedish", "thai", "turkish", "turkmen", "ukrainian", "ukrainian",
 106 "uppersorbian", "uppersorbian", "english", "english", "vietnamese", "welsh",
 107 0};
 108
 109 /// languages with english quotes (.lyx names)
 110 const char * const known_english_quotes_languages[] = {"american", "bahasa",
 111 "bahasam", "brazilian", "canadian", "chinese-simplified", "english",
 112 "esperanto", "hebrew", "irish", "korean", "portuguese", "scottish", "thai", 0};
 113
 114 /// languages with french quotes (.lyx names)
 115 const char * const known_french_quotes_languages[] = {"albanian",
 116 "arabic_arabi", "arabic_arabtex", "basque", "canadien", "catalan", "french",
 117 "galician", "greek", "italian", "norsk", "nynorsk", "polutonikogreek",
 118 "russian", "spanish", "spanish-mexico", "turkish", "turkmen", "ukrainian",
 119 "vietnamese", 0};
 120
 121 /// languages with german quotes (.lyx names)
 122 const char * const known_german_quotes_languages[] = {"austrian", "bulgarian",
 123 "czech", "german", "icelandic", "lithuanian", "lowersorbian", "naustrian",
 124 "ngerman", "serbian", "serbian-latin", "slovak", "slovene", "uppersorbian", 0};
 125
 126 /// languages with polish quotes (.lyx names)
 127 const char * const known_polish_quotes_languages[] = {"afrikaans", "croatian",
 128 "dutch", "estonian", "magyar", "polish", "romanian", 0};
 129
 130 /// languages with swedish quotes (.lyx names)
 131 const char * const known_swedish_quotes_languages[] = {"finnish",
 132 "swedish", 0};
 133
 134 /// known language packages from the times before babel
 135 const char * const known_old_language_packages[] = {"french", "frenchle",
 136 "frenchpro", "german", "ngerman", "pmfrench", 0};
 137
 138 char const * const known_fontsizes[] = { "10pt", "11pt", "12pt", 0 };
 139
 140 const char * const known_roman_fonts[] = { "ae", "beraserif", "bookman",
 141 "ccfonts", "chancery", "charter", "cmr", "fourier", "lmodern", "mathpazo",
 142 "mathptmx", "newcent", "utopia", 0};
 143
 144 const char * const known_sans_fonts[] = { "avant", "berasans", "cmbr", "cmss",
 145 "helvet", "lmss", 0};
 146
 147 const char * const known_typewriter_fonts[] = { "beramono", "cmtl", "cmtt",
 148 "courier", "lmtt", "luximono", "fourier", "lmodern", "mathpazo", "mathptmx",
 149 "newcent", 0};
 150
 151 const char * const known_paper_sizes[] = { "a0paper", "b0paper", "c0paper",
 152 "a1paper", "b1paper", "c1paper", "a2paper", "b2paper", "c2paper", "a3paper",
 153 "b3paper", "c3paper", "a4paper", "b4paper", "c4paper", "a5paper", "b5paper",
 154 "c5paper", "a6paper", "b6paper", "c6paper", "executivepaper", "legalpaper",
 155 "letterpaper", "b0j", "b1j", "b2j", "b3j", "b4j", "b5j", "b6j", 0};
 156
 157 const char * const known_class_paper_sizes[] = { "a4paper", "a5paper",
 158 "executivepaper", "legalpaper", "letterpaper", 0};
 159
 160 const char * const known_paper_margins[] = { "lmargin", "tmargin", "rmargin",
 161 "bmargin", "headheight", "headsep", "footskip", "columnsep", 0};
 162
 163 const char * const known_coded_paper_margins[] = { "leftmargin", "topmargin",
 164 "rightmargin", "bottommargin", "headheight", "headsep", "footskip",
 165 "columnsep", 0};
 166
 167 /// commands that can start an \if...\else...\endif sequence
 168 const char * const known_if_commands[] = {"if", "ifarydshln", "ifbraket",
 169 "ifcancel", "ifcolortbl", "ifeurosym", "ifmarginnote", "ifmmode", "ifpdf",
 170 "ifsidecap", "ifupgreek", 0};
 171
 172 const char * const known_basic_colors[] = {"blue", "black", "cyan", "green",
 173 "magenta", "red", "white", "yellow", 0};
 174
 175 const char * const known_basic_color_codes[] = {"#0000ff", "#000000", "#00ffff", "#00ff00",
 176 "#ff00ff", "#ff0000", "#ffffff", "#ffff00", 0};
 177
 178 /// conditional commands with three arguments like \@ifundefined{}{}{}
 179 const char * const known_if_3arg_commands[] = {"@ifundefined", "IfFileExists",
 180 0};
 181
 182 // default settings
 183 ostringstream h_preamble;
 184 string h_textclass               = "article";
 185 string h_use_default_options     = "false";
 186 string h_options;
 187 string h_language                = "english";
 188 string h_language_package        = "none";
 189 string h_fontencoding            = "default";
 190 string h_font_roman              = "default";
 191 string h_font_sans               = "default";
 192 string h_font_typewriter         = "default";
 193 string h_font_default_family     = "default";
 194 string h_font_sc                 = "false";
 195 string h_font_osf                = "false";
 196 string h_font_sf_scale           = "100";
 197 string h_font_tt_scale           = "100";
 198 string h_graphics                = "default";
 199 string h_float_placement;
 200 string h_paperfontsize           = "default";
 201 string h_spacing                 = "single";
 202 string h_use_hyperref            = "0";
 203 string h_pdf_title;
 204 string h_pdf_author;
 205 string h_pdf_subject;
 206 string h_pdf_keywords;
 207 string h_pdf_bookmarks           = "1";
 208 string h_pdf_bookmarksnumbered   = "0";
 209 string h_pdf_bookmarksopen       = "0";
 210 string h_pdf_bookmarksopenlevel  = "1";
 211 string h_pdf_breaklinks          = "0";
 212 string h_pdf_pdfborder           = "0";
 213 string h_pdf_colorlinks          = "0";
 214 string h_pdf_backref             = "section";
 215 string h_pdf_pdfusetitle         = "1";
 216 string h_pdf_pagemode;
 217 string h_pdf_quoted_options;
 218 string h_papersize               = "default";
 219 string h_use_geometry            = "false";
 220 string h_use_amsmath             = "1";
 221 string h_use_esint               = "1";
 222 string h_use_mhchem              = "0";
 223 string h_use_mathdots            = "0";
 224 string h_use_undertilde          = "0";
 225 string h_cite_engine             = "basic";
 226 string h_use_bibtopic            = "false";
 227 string h_paperorientation        = "portrait";
 228 string h_suppress_date           = "false";
 229 string h_use_refstyle            = "0";
 230 string h_backgroundcolor;
 231 string h_boxbgcolor;
 232 string h_fontcolor;
 233 string h_notefontcolor;
 234 string h_secnumdepth             = "3";
 235 string h_tocdepth                = "3";
 236 string h_defskip                 = "medskip";
 237 string h_paragraph_indentation   = "default";
 238 string h_quotes_language         = "english";
 239 string h_papercolumns            = "1";
 240 string h_papersides;
 241 string h_paperpagestyle          = "default";
 242 string h_listings_params;
 243 string h_tracking_changes        = "false";
 244 string h_output_changes          = "false";
 245 string h_html_math_output        = "0";
 246 string h_html_css_as_file        = "0";
 247 string h_html_be_strict          = "false";
 248 string h_margins;
 249
 250
 251 // returns true if at least one of the options in what has been found
 252 bool handle_opt(vector<string> & opts, char const * const * what, string & target)
 253 {
 254         if (opts.empty())
 255                 return false;
 256
 257         bool found = false;
 258         // the last language option is the document language (for babel and LyX)
 259         // the last size option is the document font size
 260         vector<string>::iterator it;
 261         vector<string>::iterator position = opts.begin();
 262         for (; *what; ++what) {
 263                 it = find(opts.begin(), opts.end(), *what);
 264                 if (it != opts.end()) {
 265                         if (it >= position) {
 266                                 found = true;
 267                                 target = *what;
 268                                 position = it;
 269                         }
 270                 }
 271         }
 272         return found;
 273 }
 274
 275
 276 void delete_opt(vector<string> & opts, char const * const * what)
 277 {
 278         if (opts.empty())
 279                 return;
 280
 281         // remove found options from the list
 282         // do this after handle_opt to avoid potential memory leaks
 283         vector<string>::iterator it;
 284         for (; *what; ++what) {
 285                 it = find(opts.begin(), opts.end(), *what);
 286                 if (it != opts.end())
 287                         opts.erase(it);
 288         }
 289 }
 290
 291
 292 /*!
 293  * Split a package options string (keyval format) into a vector.
 294  * Example input:
 295  *   authorformat=smallcaps,
 296  *   commabeforerest,
 297  *   titleformat=colonsep,
 298  *   bibformat={tabular,ibidem,numbered}
 299  */
 300 vector<string> split_options(string const & input)
 301 {
 302         vector<string> options;
 303         string option;
 304         Parser p(input);
 305         while (p.good()) {
 306                 Token const & t = p.get_token();
 307                 if (t.asInput() == ",") {
 308                         options.push_back(trimSpaceAndEol(option));
 309                         option.erase();
 310                 } else if (t.asInput() == "=") {
 311                         option += '=';
 312                         p.skip_spaces(true);
 313                         if (p.next_token().asInput() == "{")
 314                                 option += '{' + p.getArg('{', '}') + '}';
 315                 } else if (t.cat() != catSpace)
 316                         option += t.asInput();
 317         }
 318
 319         if (!option.empty())
 320                 options.push_back(trimSpaceAndEol(option));
 321
 322         return options;
 323 }
 324
 325
 326 /*!
 327  * Retrieve a keyval option "name={value with=sign}" named \p name from
 328  * \p options and return the value.
 329  * The found option is also removed from \p options.
 330  */
 331 string process_keyval_opt(vector<string> & options, string name)
 332 {
 333         for (size_t i = 0; i < options.size(); ++i) {
 334                 vector<string> option;
 335                 split(options[i], option, '=');
 336                 if (option.size() < 2)
 337                         continue;
 338                 if (option[0] == name) {
 339                         options.erase(options.begin() + i);
 340                         option.erase(option.begin());
 341                         return join(option, "=");
 342                 }
 343         }
 344         return "";
 345 }
 346
 347
 348 /*!
 349  * Add package \p name with options \p options to used_packages.
 350  * Remove options from \p options that we don't want to output.
 351  */
 352 void add_package(string const & name, vector<string> & options)
 353 {
 354         // every package inherits the global options
 355         if (used_packages.find(name) == used_packages.end())
 356                 used_packages[name] = split_options(h_options);
 357
 358         vector<string> & v = used_packages[name];
 359         v.insert(v.end(), options.begin(), options.end());
 360         if (name == "jurabib") {
 361                 // Don't output the order argument (see the cite command
 362                 // handling code in text.cpp).
 363                 vector<string>::iterator end =
 364                         remove(options.begin(), options.end(), "natbiborder");
 365                 end = remove(options.begin(), end, "jurabiborder");
 366                 options.erase(end, options.end());
 367         }
 368 }
 369
 370
 371 // Given is a string like "scaled=0.9", return 0.9 * 100
 372 string const scale_as_percentage(string const & scale)
 373 {
 374         string::size_type pos = scale.find('=');
 375         if (pos != string::npos) {
 376                 string value = scale.substr(pos + 1);
 377                 if (isStrDbl(value))
 378                         return convert<string>(100 * convert<double>(value));
 379         }
 380         // If the input string didn't match our expectations.
 381         // return the default value "100"
 382         return "100";
 383 }
 384
 385
 386 string remove_braces(string const & value)
 387 {
 388         if (value.empty())
 389                 return value;
 390         if (value[0] == '{' && value[value.length()-1] == '}')
 391                 return value.substr(1, value.length()-2);
 392         return value;
 393 }
 394
 395
 396 void handle_hyperref(vector<string> & options)
 397 {
 398         // FIXME swallow inputencoding changes that might surround the
 399         //       hyperref setup if it was written by LyX
 400         h_use_hyperref = "1";
 401         // swallow "unicode=true", since LyX does always write that
 402         vector<string>::iterator it =
 403                 find(options.begin(), options.end(), "unicode=true");
 404         if (it != options.end())
 405                 options.erase(it);
 406         it = find(options.begin(), options.end(), "pdfusetitle");
 407         if (it != options.end()) {
 408                 h_pdf_pdfusetitle = "1";
 409                 options.erase(it);
 410         }
 411         string bookmarks = process_keyval_opt(options, "bookmarks");
 412         if (bookmarks == "true")
 413                 h_pdf_bookmarks = "1";
 414         else if (bookmarks == "false")
 415                 h_pdf_bookmarks = "0";
 416         if (h_pdf_bookmarks == "1") {
 417                 string bookmarksnumbered =
 418                         process_keyval_opt(options, "bookmarksnumbered");
 419                 if (bookmarksnumbered == "true")
 420                         h_pdf_bookmarksnumbered = "1";
 421                 else if (bookmarksnumbered == "false")
 422                         h_pdf_bookmarksnumbered = "0";
 423                 string bookmarksopen =
 424                         process_keyval_opt(options, "bookmarksopen");
 425                 if (bookmarksopen == "true")
 426                         h_pdf_bookmarksopen = "1";
 427                 else if (bookmarksopen == "false")
 428                         h_pdf_bookmarksopen = "0";
 429                 if (h_pdf_bookmarksopen == "1") {
 430                         string bookmarksopenlevel =
 431                                 process_keyval_opt(options, "bookmarksopenlevel");
 432                         if (!bookmarksopenlevel.empty())
 433                                 h_pdf_bookmarksopenlevel = bookmarksopenlevel;
 434                 }
 435         }
 436         string breaklinks = process_keyval_opt(options, "breaklinks");
 437         if (breaklinks == "true")
 438                 h_pdf_breaklinks = "1";
 439         else if (breaklinks == "false")
 440                 h_pdf_breaklinks = "0";
 441         string pdfborder = process_keyval_opt(options, "pdfborder");
 442         if (pdfborder == "{0 0 0}")
 443                 h_pdf_pdfborder = "1";
 444         else if (pdfborder == "{0 0 1}")
 445                 h_pdf_pdfborder = "0";
 446         string backref = process_keyval_opt(options, "backref");
 447         if (!backref.empty())
 448                 h_pdf_backref = backref;
 449         string colorlinks = process_keyval_opt(options, "colorlinks");
 450         if (colorlinks == "true")
 451                 h_pdf_colorlinks = "1";
 452         else if (colorlinks == "false")
 453                 h_pdf_colorlinks = "0";
 454         string pdfpagemode = process_keyval_opt(options, "pdfpagemode");
 455         if (!pdfpagemode.empty())
 456                 h_pdf_pagemode = pdfpagemode;
 457         string pdftitle = process_keyval_opt(options, "pdftitle");
 458         if (!pdftitle.empty()) {
 459                 h_pdf_title = remove_braces(pdftitle);
 460         }
 461         string pdfauthor = process_keyval_opt(options, "pdfauthor");
 462         if (!pdfauthor.empty()) {
 463                 h_pdf_author = remove_braces(pdfauthor);
 464         }
 465         string pdfsubject = process_keyval_opt(options, "pdfsubject");
 466         if (!pdfsubject.empty())
 467                 h_pdf_subject = remove_braces(pdfsubject);
 468         string pdfkeywords = process_keyval_opt(options, "pdfkeywords");
 469         if (!pdfkeywords.empty())
 470                 h_pdf_keywords = remove_braces(pdfkeywords);
 471         if (!options.empty()) {
 472                 if (!h_pdf_quoted_options.empty())
 473                         h_pdf_quoted_options += ',';
 474                 h_pdf_quoted_options += join(options, ",");
 475                 options.clear();
 476         }
 477 }
 478
 479
 480 void handle_package(Parser &p, string const & name, string const & opts,
 481                     bool in_lyx_preamble)
 482 {
 483         vector<string> options = split_options(opts);
 484         add_package(name, options);
 485         string scale;
 486
 487         // roman fonts
 488         if (is_known(name, known_roman_fonts)) {
 489                 h_font_roman = name;
 490                 p.skip_spaces();
 491         }
 492
 493         if (name == "fourier") {
 494                 h_font_roman = "utopia";
 495                 // when font uses real small capitals
 496                 if (opts == "expert")
 497                         h_font_sc = "true";
 498         }
 499
 500         if (name == "mathpazo")
 501                 h_font_roman = "palatino";
 502
 503         if (name == "mathptmx")
 504                 h_font_roman = "times";
 505
 506         // sansserif fonts
 507         if (is_known(name, known_sans_fonts)) {
 508                 h_font_sans = name;
 509                 if (!opts.empty()) {
 510                         scale = opts;
 511                         h_font_sf_scale = scale_as_percentage(scale);
 512                 }
 513         }
 514
 515         // typewriter fonts
 516         if (is_known(name, known_typewriter_fonts)) {
 517                 // fourier can be set as roman font _only_
 518                 // fourier as typewriter is handled in handling of \ttdefault
 519                 if (name != "fourier") {
 520                         h_font_typewriter = name;
 521                         if (!opts.empty()) {
 522                                 scale = opts;
 523                                 h_font_tt_scale = scale_as_percentage(scale);
 524                         }
 525                 }
 526         }
 527
 528         // font uses old-style figure
 529         if (name == "eco")
 530                 h_font_osf = "true";
 531
 532         // after the detection and handling of special cases, we can remove the
 533         // fonts, otherwise they would appear in the preamble, see bug #7856
 534         if (is_known(name, known_roman_fonts) || is_known(name, known_sans_fonts)
 535                 ||      is_known(name, known_typewriter_fonts))
 536                 ;
 537
 538         else if (name == "amsmath" || name == "amssymb")
 539                 h_use_amsmath = "2";
 540
 541         else if (name == "esint")
 542                 h_use_esint = "2";
 543
 544         else if (name == "mhchem")
 545                 h_use_mhchem = "2";
 546
 547         else if (name == "mathdots")
 548                 h_use_mathdots = "2";
 549
 550         else if (name == "undertilde")
 551                 h_use_undertilde = "2";
 552
 553         else if (name == "babel") {
 554                 h_language_package = "default";
 555                 // we have to do nothing if babel is loaded without any options, otherwise
 556                 // we would pollute the preamble with this call in every roundtrip
 557                 if (!opts.empty()) {
 558                         // check if more than one option was used - used later for inputenc
 559                         // in case inputenc is parsed before babel, set the encoding to auto
 560                         if (options.begin() != options.end() - 1) {
 561                                 one_language = false;
 562                                 h_inputencoding = "auto";
 563                         }
 564                         // babel takes the last language of the option of its \usepackage
 565                         // call as document language. If there is no such language option, the
 566                         // last language in the documentclass options is used.
 567                         handle_opt(options, known_languages, h_language);
 568                         delete_opt(options, known_languages);
 569                 }
 570         }
 571
 572         else if (name == "fontenc") {
 573                 h_fontencoding = getStringFromVector(options, ",");
 574                 // as of version LyX 2.0 "T1" is equal to the setting "global"
 575                 if (h_fontencoding == "T1")
 576                         h_fontencoding = "global";
 577                 options.clear();
 578         }
 579
 580         else if (name == "inputenc" || name == "luainputenc") {
 581                 // h_inputencoding is only set when there is not more than one
 582                 // inputenc option because otherwise h_inputencoding must be
 583                 // set to "auto" (the default encoding of the document language)
 584                 // Therefore check for the "," character.
 585                 // It is also only set when there is not more then one babel
 586                 // language option but this is handled in the routine for babel.
 587                 if (opts.find(",") == string::npos && one_language == true)
 588                         h_inputencoding = opts;
 589                 if (!options.empty())
 590                         p.setEncoding(options.back());
 591                 options.clear();
 592         }
 593
 594         else if (is_known(name, known_old_language_packages)) {
 595                 // known language packages from the times before babel
 596                 // if they are found and not also babel, they will be used as
 597                 // cutom language package
 598                 h_language_package = "\\usepackage{" + name + "}";
 599         }
 600
 601         else if (name == "makeidx")
 602                 ; // ignore this
 603
 604         else if (name == "prettyref")
 605                 ; // ignore this
 606
 607         else if (name == "varioref")
 608                 ; // ignore this
 609
 610         else if (name == "verbatim")
 611                 ; // ignore this
 612
 613         else if (name == "nomencl")
 614                 ; // ignore this
 615
 616         else if (name == "textcomp")
 617                 ; // ignore this
 618
 619         else if (name == "url")
 620                 ; // ignore this
 621
 622         else if (name == "subscript")
 623                 ; // ignore this
 624
 625         else if (name == "color") {
 626                 // with the following command this package is only loaded when needed for
 627                 // undefined colors, since we only support the predefined colors
 628                 // only add it if not yet added
 629                 if (!ifundefined_color_set)
 630                         h_preamble << "\\@ifundefined{definecolor}\n {\\usepackage{color}}{}\n";
 631         }
 632
 633         else if (name == "graphicx")
 634                 ; // ignore this
 635
 636         else if (name == "setspace")
 637                 ; // ignore this
 638
 639 #if 0
 640         // do not ignore as long as we don't support all commands (e.g. \xout is missing)
 641         else if (name == "ulem")
 642                 ; // ignore this
 643 #endif
 644
 645         else if (name == "geometry")
 646                 ; // Ignore this, the geometry settings are made by the \geometry
 647                   // command. This command is handled below.
 648
 649         else if (is_known(name, known_languages))
 650                 h_language = name;
 651
 652         else if (name == "natbib") {
 653                 h_cite_engine = "natbib_authoryear";
 654                 vector<string>::iterator it =
 655                         find(options.begin(), options.end(), "authoryear");
 656                 if (it != options.end())
 657                         options.erase(it);
 658                 else {
 659                         it = find(options.begin(), options.end(), "numbers");
 660                         if (it != options.end()) {
 661                                 h_cite_engine = "natbib_numerical";
 662                                 options.erase(it);
 663                         }
 664                 }
 665         }
 666
 667         else if (name == "jurabib")
 668                 h_cite_engine = "jurabib";
 669
 670         else if (name == "hyperref")
 671                 handle_hyperref(options);
 672
 673         else if (!in_lyx_preamble) {
 674                 if (options.empty())
 675                         h_preamble << "\\usepackage{" << name << "}";
 676                 else {
 677                         h_preamble << "\\usepackage[" << opts << "]{"
 678                                    << name << "}";
 679                         options.clear();
 680                 }
 681         }
 682
 683         // We need to do something with the options...
 684         if (!options.empty())
 685                 cerr << "Ignoring options '" << join(options, ",")
 686                      << "' of package " << name << '.' << endl;
 687
 688         // remove the whitespace
 689         p.skip_spaces();
 690 }
 691
 692
 693 void handle_if(Parser & p, bool in_lyx_preamble)
 694 {
 695         while (p.good()) {
 696                 Token t = p.get_token();
 697                 if (t.cat() == catEscape &&
 698                     is_known(t.cs(), known_if_commands))
 699                         handle_if(p, in_lyx_preamble);
 700                 else {
 701                         if (!in_lyx_preamble)
 702                                 h_preamble << t.asInput();
 703                         if (t.cat() == catEscape && t.cs() == "fi")
 704                                 return;
 705                 }
 706         }
 707 }
 708
 709
 710 void end_preamble(ostream & os, TextClass const & /*textclass*/)
 711 {
 712         // translate from babel to LyX names
 713         h_language = babel2lyx(h_language);
 714
 715         // set the quote language
 716         // LyX only knows the following quotes languages:
 717         // english, swedish, german, polish, french and danish
 718         // (quotes for "japanese" and "chinese-traditional" are missing because
 719         //  they wouldn't be useful: http://www.lyx.org/trac/ticket/6383)
 720         // conversion list taken from
 721         // http://en.wikipedia.org/wiki/Quotation_mark,_non-English_usage
 722         // (quotes for kazakh and interlingua are unknown)
 723         // danish
 724         if (h_language == "danish")
 725                 h_quotes_language = "danish";
 726         // french
 727         else if (is_known(h_language, known_french_quotes_languages))
 728                 h_quotes_language = "french";
 729         // german
 730         else if (is_known(h_language, known_german_quotes_languages))
 731                 h_quotes_language = "german";
 732         // polish
 733         else if (is_known(h_language, known_polish_quotes_languages))
 734                 h_quotes_language = "polish";
 735         // swedish
 736         else if (is_known(h_language, known_swedish_quotes_languages))
 737                 h_quotes_language = "swedish";
 738         //english
 739         else if (is_known(h_language, known_english_quotes_languages))
 740                 h_quotes_language = "english";
 741
 742         // output the LyX file settings
 743         os << "#LyX file created by tex2lyx " << PACKAGE_VERSION << "\n"
 744            << "\\lyxformat " << LYX_FORMAT << '\n'
 745            << "\\begin_document\n"
 746            << "\\begin_header\n"
 747            << "\\textclass " << h_textclass << "\n";
 748         if (!h_preamble.str().empty())
 749                 os << "\\begin_preamble\n" << h_preamble.str() << "\n\\end_preamble\n";
 750         if (!h_options.empty())
 751                 os << "\\options " << h_options << "\n";
 752         os << "\\use_default_options " << h_use_default_options << "\n"
 753            << modules_placeholder
 754            << "\\language " << h_language << "\n"
 755            << "\\language_package " << h_language_package << "\n"
 756            << "\\inputencoding " << h_inputencoding << "\n"
 757            << "\\fontencoding " << h_fontencoding << "\n"
 758            << "\\font_roman " << h_font_roman << "\n"
 759            << "\\font_sans " << h_font_sans << "\n"
 760            << "\\font_typewriter " << h_font_typewriter << "\n"
 761            << "\\font_default_family " << h_font_default_family << "\n"
 762            << "\\font_sc " << h_font_sc << "\n"
 763            << "\\font_osf " << h_font_osf << "\n"
 764            << "\\font_sf_scale " << h_font_sf_scale << "\n"
 765            << "\\font_tt_scale " << h_font_tt_scale << "\n"
 766            << "\\graphics " << h_graphics << "\n";
 767         if (!h_float_placement.empty())
 768                 os << "\\float_placement " << h_float_placement << "\n";
 769         os << "\\paperfontsize " << h_paperfontsize << "\n"
 770            << "\\spacing " << h_spacing << "\n"
 771            << "\\use_hyperref " << h_use_hyperref << '\n';
 772         if (h_use_hyperref == "1") {
 773                 if (!h_pdf_title.empty())
 774                         os << "\\pdf_title \"" << h_pdf_title << "\"\n";
 775                 if (!h_pdf_author.empty())
 776                         os << "\\pdf_author \"" << h_pdf_author << "\"\n";
 777                 if (!h_pdf_subject.empty())
 778                         os << "\\pdf_subject \"" << h_pdf_subject << "\"\n";
 779                 if (!h_pdf_keywords.empty())
 780                         os << "\\pdf_keywords \"" << h_pdf_keywords << "\"\n";
 781                 os << "\\pdf_bookmarks " << h_pdf_bookmarks << "\n"
 782                       "\\pdf_bookmarksnumbered " << h_pdf_bookmarksnumbered << "\n"
 783                       "\\pdf_bookmarksopen " << h_pdf_bookmarksopen << "\n"
 784                       "\\pdf_bookmarksopenlevel " << h_pdf_bookmarksopenlevel << "\n"
 785                       "\\pdf_breaklinks " << h_pdf_breaklinks << "\n"
 786                       "\\pdf_pdfborder " << h_pdf_pdfborder << "\n"
 787                       "\\pdf_colorlinks " << h_pdf_colorlinks << "\n"
 788                       "\\pdf_backref " << h_pdf_backref << "\n"
 789                       "\\pdf_pdfusetitle " << h_pdf_pdfusetitle << '\n';
 790                 if (!h_pdf_pagemode.empty())
 791                         os << "\\pdf_pagemode " << h_pdf_pagemode << '\n';
 792                 if (!h_pdf_quoted_options.empty())
 793                         os << "\\pdf_quoted_options \"" << h_pdf_quoted_options << "\"\n";
 794         }
 795         os << "\\papersize " << h_papersize << "\n"
 796            << "\\use_geometry " << h_use_geometry << "\n"
 797            << "\\use_amsmath " << h_use_amsmath << "\n"
 798            << "\\use_esint " << h_use_esint << "\n"
 799            << "\\use_mhchem " << h_use_mhchem << "\n"
 800            << "\\use_mathdots " << h_use_mathdots << "\n"
 801            << "\\use_undertilde " << h_use_undertilde << "\n"
 802            << "\\cite_engine " << h_cite_engine << "\n"
 803            << "\\use_bibtopic " << h_use_bibtopic << "\n"
 804            << "\\paperorientation " << h_paperorientation << '\n'
 805            << "\\suppress_date " << h_suppress_date << '\n'
 806            << "\\use_refstyle " << h_use_refstyle << '\n';
 807         if (!h_fontcolor.empty())
 808                 os << "\\fontcolor " << h_fontcolor << '\n';
 809         if (!h_notefontcolor.empty())
 810                 os << "\\notefontcolor " << h_notefontcolor << '\n';
 811         if (!h_backgroundcolor.empty())
 812                 os << "\\backgroundcolor " << h_backgroundcolor << '\n';
 813         if (!h_boxbgcolor.empty())
 814                 os << "\\boxbgcolor " << h_boxbgcolor << '\n';
 815         os << h_margins
 816            << "\\secnumdepth " << h_secnumdepth << "\n"
 817            << "\\tocdepth " << h_tocdepth << "\n"
 818            << "\\paragraph_separation " << h_paragraph_separation << "\n";
 819         if (h_paragraph_separation == "skip")
 820                 os << "\\defskip " << h_defskip << "\n";
 821         else
 822                 os << "\\paragraph_indentation " << h_paragraph_indentation << "\n";
 823         os << "\\quotes_language " << h_quotes_language << "\n"
 824            << "\\papercolumns " << h_papercolumns << "\n"
 825            << "\\papersides " << h_papersides << "\n"
 826            << "\\paperpagestyle " << h_paperpagestyle << "\n";
 827         if (!h_listings_params.empty())
 828                 os << "\\listings_params " << h_listings_params << "\n";
 829         os << "\\tracking_changes " << h_tracking_changes << "\n"
 830            << "\\output_changes " << h_output_changes << "\n"
 831            << "\\html_math_output " << h_html_math_output << "\n"
 832            << "\\html_css_as_file " << h_html_css_as_file << "\n"
 833            << "\\html_be_strict " << h_html_be_strict << "\n"
 834            << "\\end_header\n\n"
 835            << "\\begin_body\n";
 836         // clear preamble for subdocuments
 837         h_preamble.str("");
 838 }
 839
 840 } // anonymous namespace
 841
 842
 843 void parse_preamble(Parser & p, ostream & os,
 844         string const & forceclass, TeX2LyXDocClass & tc)
 845 {
 846         // initialize fixed types
 847         special_columns['D'] = 3;
 848         bool is_full_document = false;
 849         bool is_lyx_file = false;
 850         bool in_lyx_preamble = false;
 851
 852         // determine whether this is a full document or a fragment for inclusion
 853         while (p.good()) {
 854                 Token const & t = p.get_token();
 855
 856                 if (t.cat() == catEscape && t.cs() == "documentclass") {
 857                         is_full_document = true;
 858                         break;
 859                 }
 860         }
 861         p.reset();
 862
 863         while (is_full_document && p.good()) {
 864                 Token const & t = p.get_token();
 865
 866 #ifdef FILEDEBUG
 867                 cerr << "t: " << t << "\n";
 868 #endif
 869
 870                 //
 871                 // cat codes
 872                 //
 873                 if (!in_lyx_preamble &&
 874                     (t.cat() == catLetter ||
 875                      t.cat() == catSuper ||
 876                      t.cat() == catSub ||
 877                      t.cat() == catOther ||
 878                      t.cat() == catMath ||
 879                      t.cat() == catActive ||
 880                      t.cat() == catBegin ||
 881                      t.cat() == catEnd ||
 882                      t.cat() == catAlign ||
 883                      t.cat() == catParameter))
 884                         h_preamble << t.cs();
 885
 886                 else if (!in_lyx_preamble &&
 887                          (t.cat() == catSpace || t.cat() == catNewline))
 888                         h_preamble << t.asInput();
 889
 890                 else if (t.cat() == catComment) {
 891                         static regex const islyxfile("%% LyX .* created this file");
 892                         static regex const usercommands("User specified LaTeX commands");
 893
 894                         string const comment = t.asInput();
 895
 896                         // magically switch encoding default if it looks like XeLaTeX
 897                         static string const magicXeLaTeX =
 898                                 "% This document must be compiled with XeLaTeX ";
 899                         if (comment.size() > magicXeLaTeX.size()
 900                                   && comment.substr(0, magicXeLaTeX.size()) == magicXeLaTeX
 901                                   && h_inputencoding == "auto") {
 902                                 cerr << "XeLaTeX comment found, switching to UTF8\n";
 903                                 h_inputencoding = "utf8";
 904                         }
 905                         smatch sub;
 906                         if (regex_search(comment, sub, islyxfile)) {
 907                                 is_lyx_file = true;
 908                                 in_lyx_preamble = true;
 909                         } else if (is_lyx_file
 910                                    && regex_search(comment, sub, usercommands))
 911                                 in_lyx_preamble = false;
 912                         else if (!in_lyx_preamble)
 913                                 h_preamble << t.asInput();
 914                 }
 915
 916                 else if (t.cs() == "pagestyle")
 917                         h_paperpagestyle = p.verbatim_item();
 918
 919                 else if (t.cs() == "date") {
 920                         if (p.verbatim_item().empty())
 921                                 h_suppress_date = "true";
 922                 }
 923
 924                 else if (t.cs() == "color") {
 925                         string argument = p.getArg('{', '}');
 926                         // check the case that a standard color is used
 927                         if (is_known(argument, known_basic_colors))
 928                                 h_fontcolor = color2code(argument);
 929                         // check the case that LyX's document_fontcolor is defined
 930                         // but not used for \color
 931                         if (argument != "document_fontcolor"
 932                                 && !is_known(argument, known_basic_colors)) {
 933                                 h_preamble << t.asInput() << '{' << argument << '}';
 934                                 // the color might already be set because \definecolor
 935                                 // is parsed before this
 936                                 h_fontcolor = "";
 937                         }
 938                 }
 939
 940                 else if (t.cs() == "pagecolor") {
 941                         string argument = p.getArg('{', '}');
 942                         // check the case that a standard color is used
 943                         if (is_known(argument, known_basic_colors))
 944                                 h_backgroundcolor = color2code(argument);
 945                         // check the case that LyX's page_backgroundcolor is defined
 946                         // but not used for \pagecolor
 947                         if (argument != "page_backgroundcolor"
 948                                 && !is_known(argument, known_basic_colors)) {
 949                                 h_preamble << t.asInput() << '{' << argument << '}';
 950                                 // the color might already be set because \definecolor
 951                                 // is parsed before this
 952                                 h_backgroundcolor = "";
 953                         }
 954                 }
 955
 956                 else if (t.cs() == "makeatletter") {
 957                         // LyX takes care of this
 958                         p.setCatCode('@', catLetter);
 959                 }
 960
 961                 else if (t.cs() == "makeatother") {
 962                         // LyX takes care of this
 963                         p.setCatCode('@', catOther);
 964                 }
 965
 966                 else if (t.cs() == "newcommand" || t.cs() == "newcommandx"
 967                       || t.cs() == "renewcommand" || t.cs() == "renewcommandx"
 968                       || t.cs() == "providecommand" || t.cs() == "providecommandx"
 969                                 || t.cs() == "DeclareRobustCommand"
 970                       || t.cs() == "DeclareRobustCommandx"
 971                                 || t.cs() == "ProvideTextCommandDefault"
 972                                 || t.cs() == "DeclareMathAccent") {
 973                         bool star = false;
 974                         if (p.next_token().character() == '*') {
 975                                 p.get_token();
 976                                 star = true;
 977                         }
 978                         string const name = p.verbatim_item();
 979                         string const opt1 = p.getFullOpt();
 980                         string const opt2 = p.getFullOpt();
 981                         string const body = p.verbatim_item();
 982                         // font settings
 983                         if (name == "\\rmdefault")
 984                                 if (is_known(body, known_roman_fonts))
 985                                         h_font_roman = body;
 986                         if (name == "\\sfdefault")
 987                                 if (is_known(body, known_sans_fonts))
 988                                         h_font_sans = body;
 989                         if (name == "\\ttdefault")
 990                                 if (is_known(body, known_typewriter_fonts))
 991                                         h_font_typewriter = body;
 992                         if (name == "\\familydefault") {
 993                                 string family = body;
 994                                 // remove leading "\"
 995                                 h_font_default_family = family.erase(0,1);
 996                         }
 997
 998                         // Add the command to the known commands
 999                         add_known_command(name, opt1, !opt2.empty(), from_utf8(body));
1000
1001                         // only non-lyxspecific stuff
1002                         if (!in_lyx_preamble) {
1003                                 ostringstream ss;
1004                                 ss << '\\' << t.cs();
1005                                 if (star)
1006                                         ss << '*';
1007                                 ss << '{' << name << '}' << opt1 << opt2
1008                                    << '{' << body << "}";
1009                                 h_preamble << ss.str();
1010 /*
1011                                 ostream & out = in_preamble ? h_preamble : os;
1012                                 out << "\\" << t.cs() << "{" << name << "}"
1013                                     << opts << "{" << body << "}";
1014 */
1015                         }
1016                 }
1017
1018                 else if (t.cs() == "documentclass") {
1019                         vector<string>::iterator it;
1020                         vector<string> opts = split_options(p.getArg('[', ']'));
1021                         handle_opt(opts, known_fontsizes, h_paperfontsize);
1022                         delete_opt(opts, known_fontsizes);
1023                         // delete "pt" at the end
1024                         string::size_type i = h_paperfontsize.find("pt");
1025                         if (i != string::npos)
1026                                 h_paperfontsize.erase(i);
1027                         // The documentclass options are always parsed before the options
1028                         // of the babel call so that a language cannot overwrite the babel
1029                         // options.
1030                         handle_opt(opts, known_languages, h_language);
1031                         delete_opt(opts, known_languages);
1032
1033                         // paper orientation
1034                         if ((it = find(opts.begin(), opts.end(), "landscape")) != opts.end()) {
1035                                 h_paperorientation = "landscape";
1036                                 opts.erase(it);
1037                         }
1038                         // paper sides
1039                         if ((it = find(opts.begin(), opts.end(), "oneside"))
1040                                  != opts.end()) {
1041                                 h_papersides = "1";
1042                                 opts.erase(it);
1043                         }
1044                         if ((it = find(opts.begin(), opts.end(), "twoside"))
1045                                  != opts.end()) {
1046                                 h_papersides = "2";
1047                                 opts.erase(it);
1048                         }
1049                         // paper columns
1050                         if ((it = find(opts.begin(), opts.end(), "onecolumn"))
1051                                  != opts.end()) {
1052                                 h_papercolumns = "1";
1053                                 opts.erase(it);
1054                         }
1055                         if ((it = find(opts.begin(), opts.end(), "twocolumn"))
1056                                  != opts.end()) {
1057                                 h_papercolumns = "2";
1058                                 opts.erase(it);
1059                         }
1060                         // paper sizes
1061                         // some size options are know to any document classes, other sizes
1062                         // are handled by the \geometry command of the geometry package
1063                         handle_opt(opts, known_class_paper_sizes, h_papersize);
1064                         delete_opt(opts, known_class_paper_sizes);
1065                         // the remaining options
1066                         h_options = join(opts, ",");
1067                         // FIXME This does not work for classes that have a
1068                         //       different name in LyX than in LaTeX
1069                         h_textclass = p.getArg('{', '}');
1070                 }
1071
1072                 else if (t.cs() == "usepackage") {
1073                         string const options = p.getArg('[', ']');
1074                         string const name = p.getArg('{', '}');
1075                         vector<string> vecnames;
1076                         split(name, vecnames, ',');
1077                         vector<string>::const_iterator it  = vecnames.begin();
1078                         vector<string>::const_iterator end = vecnames.end();
1079                         for (; it != end; ++it)
1080                                 handle_package(p, trimSpaceAndEol(*it), options,
1081                                                in_lyx_preamble);
1082                 }
1083
1084                 else if (t.cs() == "inputencoding") {
1085                         string const encoding = p.getArg('{','}');
1086                         h_inputencoding = encoding;
1087                         p.setEncoding(encoding);
1088                 }
1089
1090                 else if (t.cs() == "newenvironment") {
1091                         string const name = p.getArg('{', '}');
1092                         string const opt1 = p.getFullOpt();
1093                         string const opt2 = p.getFullOpt();
1094                         string const beg = p.verbatim_item();
1095                         string const end = p.verbatim_item();
1096                         if (!in_lyx_preamble) {
1097                                 h_preamble << "\\newenvironment{" << name
1098                                            << '}' << opt1 << opt2 << '{'
1099                                            << beg << "}{" << end << '}';
1100                         }
1101                         add_known_environment(name, opt1, !opt2.empty(),
1102                                               from_utf8(beg), from_utf8(end));
1103
1104                 }
1105
1106                 else if (t.cs() == "def") {
1107                         string name = p.get_token().cs();
1108                         while (p.next_token().cat() != catBegin)
1109                                 name += p.get_token().cs();
1110                         if (!in_lyx_preamble)
1111                                 h_preamble << "\\def\\" << name << '{'
1112                                            << p.verbatim_item() << "}";
1113                 }
1114
1115                 else if (t.cs() == "newcolumntype") {
1116                         string const name = p.getArg('{', '}');
1117                         trimSpaceAndEol(name);
1118                         int nargs = 0;
1119                         string opts = p.getOpt();
1120                         if (!opts.empty()) {
1121                                 istringstream is(string(opts, 1));
1122                                 is >> nargs;
1123                         }
1124                         special_columns[name[0]] = nargs;
1125                         h_preamble << "\\newcolumntype{" << name << "}";
1126                         if (nargs)
1127                                 h_preamble << "[" << nargs << "]";
1128                         h_preamble << "{" << p.verbatim_item() << "}";
1129                 }
1130
1131                 else if (t.cs() == "setcounter") {
1132                         string const name = p.getArg('{', '}');
1133                         string const content = p.getArg('{', '}');
1134                         if (name == "secnumdepth")
1135                                 h_secnumdepth = content;
1136                         else if (name == "tocdepth")
1137                                 h_tocdepth = content;
1138                         else
1139                                 h_preamble << "\\setcounter{" << name << "}{" << content << "}";
1140                 }
1141
1142                 else if (t.cs() == "setlength") {
1143                         string const name = p.verbatim_item();
1144                         string const content = p.verbatim_item();
1145                         // the paragraphs are only not indented when \parindent is set to zero
1146                         if (name == "\\parindent" && content != "") {
1147                                 if (content[0] == '0')
1148                                         h_paragraph_separation = "skip";
1149                                 else
1150                                         h_paragraph_indentation = translate_len(content);
1151                         } else if (name == "\\parskip") {
1152                                 if (content == "\\smallskipamount")
1153                                         h_defskip = "smallskip";
1154                                 else if (content == "\\medskipamount")
1155                                         h_defskip = "medskip";
1156                                 else if (content == "\\bigskipamount")
1157                                         h_defskip = "bigskip";
1158                                 else
1159                                         h_defskip = content;
1160                         } else
1161                                 h_preamble << "\\setlength{" << name << "}{" << content << "}";
1162                 }
1163
1164                 else if (t.cs() == "onehalfspacing")
1165                         h_spacing = "onehalf";
1166
1167                 else if (t.cs() == "doublespacing")
1168                         h_spacing = "double";
1169
1170                 else if (t.cs() == "setstretch")
1171                         h_spacing = "other " + p.verbatim_item();
1172
1173                 else if (t.cs() == "begin") {
1174                         string const name = p.getArg('{', '}');
1175                         if (name == "document")
1176                                 break;
1177                         h_preamble << "\\begin{" << name << "}";
1178                 }
1179
1180                 else if (t.cs() == "geometry") {
1181                         h_use_geometry = "true";
1182                         vector<string> opts = split_options(p.getArg('{', '}'));
1183                         vector<string>::iterator it;
1184                         // paper orientation
1185                         if ((it = find(opts.begin(), opts.end(), "landscape")) != opts.end()) {
1186                                 h_paperorientation = "landscape";
1187                                 opts.erase(it);
1188                         }
1189                         // paper size
1190                         handle_opt(opts, known_paper_sizes, h_papersize);
1191                         delete_opt(opts, known_paper_sizes);
1192                         // page margins
1193                         char const * const * margin = known_paper_margins;
1194                         int k = -1;
1195                         for (; *margin; ++margin) {
1196                                 k += 1;
1197                                 // search for the "=" in e.g. "lmargin=2cm" to get the value
1198                                 for(size_t i = 0; i != opts.size(); i++) {
1199                                         if (opts.at(i).find(*margin) != string::npos) {
1200                                                 string::size_type pos = opts.at(i).find("=");
1201                                                 string value = opts.at(i).substr(pos + 1);
1202                                                 string name = known_coded_paper_margins[k];
1203                                                 h_margins += "\\" + name + " " + value + "\n";
1204                                         }
1205                                 }
1206                         }
1207                 }
1208
1209                 else if (t.cs() == "definecolor") {
1210                         string const color = p.getArg('{', '}');
1211                         string const space = p.getArg('{', '}');
1212                         string const value = p.getArg('{', '}');
1213                         if (color == "document_fontcolor" && space == "rgb") {
1214                                 RGBColor c(RGBColorFromLaTeX(value));
1215                                 h_fontcolor = X11hexname(c);
1216                         } else if (color == "note_fontcolor" && space == "rgb") {
1217                                 RGBColor c(RGBColorFromLaTeX(value));
1218                                 h_notefontcolor = X11hexname(c);
1219                         } else if (color == "page_backgroundcolor" && space == "rgb") {
1220                                 RGBColor c(RGBColorFromLaTeX(value));
1221                                 h_backgroundcolor = X11hexname(c);
1222                         } else if (color == "shadecolor" && space == "rgb") {
1223                                 RGBColor c(RGBColorFromLaTeX(value));
1224                                 h_boxbgcolor = X11hexname(c);
1225                         } else {
1226                                 h_preamble << "\\definecolor{" << color
1227                                            << "}{" << space << "}{" << value
1228                                            << '}';
1229                         }
1230                 }
1231
1232                 else if (t.cs() == "jurabibsetup") {
1233                         // FIXME p.getArg('{', '}') is most probably wrong (it
1234                         //       does not handle nested braces).
1235                         //       Use p.verbatim_item() instead.
1236                         vector<string> jurabibsetup =
1237                                 split_options(p.getArg('{', '}'));
1238                         // add jurabibsetup to the jurabib package options
1239                         add_package("jurabib", jurabibsetup);
1240                         if (!jurabibsetup.empty()) {
1241                                 h_preamble << "\\jurabibsetup{"
1242                                            << join(jurabibsetup, ",") << '}';
1243                         }
1244                 }
1245
1246                 else if (t.cs() == "hypersetup") {
1247                         vector<string> hypersetup =
1248                                 split_options(p.verbatim_item());
1249                         // add hypersetup to the hyperref package options
1250                         handle_hyperref(hypersetup);
1251                         if (!hypersetup.empty()) {
1252                                 h_preamble << "\\hypersetup{"
1253                                            << join(hypersetup, ",") << '}';
1254                         }
1255                 }
1256
1257                 else if (is_known(t.cs(), known_if_3arg_commands)) {
1258                         // prevent misparsing of \usepackage if it is used
1259                         // as an argument (see e.g. our own output of
1260                         // \@ifundefined above)
1261                         string const arg1 = p.verbatim_item();
1262                         string const arg2 = p.verbatim_item();
1263                         string const arg3 = p.verbatim_item();
1264                         // test case \@ifundefined{date}{}{\date{}}
1265                         if (arg1 == "date" && arg2.empty() && arg3 == "\\date{}") {
1266                                 h_suppress_date = "true";
1267                         // test case \@ifundefined{definecolor}{\usepackage{color}}{}
1268                         // because we could pollute the preamble with it in roundtrips
1269                         } else if (arg1 == "definecolor" && arg2 == "\\usepackage{color}"
1270                                 && arg3.empty()) {
1271                                 ifundefined_color_set = true;
1272                         } else if (!in_lyx_preamble) {
1273                                 h_preamble << t.asInput()
1274                                            << '{' << arg1 << '}'
1275                                            << '{' << arg2 << '}'
1276                                            << '{' << arg3 << '}';
1277                         }
1278                 }
1279
1280                 else if (is_known(t.cs(), known_if_commands)) {
1281                         // must not parse anything in conditional code, since
1282                         // LyX would output the parsed contents unconditionally
1283                         if (!in_lyx_preamble)
1284                                 h_preamble << t.asInput();
1285                         handle_if(p, in_lyx_preamble);
1286                 }
1287
1288                 else if (!t.cs().empty() && !in_lyx_preamble)
1289                         h_preamble << '\\' << t.cs();
1290         }
1291
1292         // remove the whitespace
1293         p.skip_spaces();
1294
1295         // Force textclass if the user wanted it
1296         if (!forceclass.empty())
1297                 h_textclass = forceclass;
1298         if (noweb_mode && !prefixIs(h_textclass, "literate-"))
1299                 h_textclass.insert(0, "literate-");
1300         tc.setName(h_textclass);
1301         if (!tc.load()) {
1302                 cerr << "Error: Could not read layout file for textclass \"" << h_textclass << "\"." << endl;
1303                 exit(EXIT_FAILURE);
1304         }
1305         if (h_papersides.empty()) {
1306                 ostringstream ss;
1307                 ss << tc.sides();
1308                 h_papersides = ss.str();
1309         }
1310         end_preamble(os, tc);
1311 }
1312
1313
1314 /// translates a babel language name to a LyX language name
1315 string babel2lyx(string const & language)
1316 {
1317         char const * const * where = is_known(language, known_languages);
1318         if (where)
1319                 return known_coded_languages[where - known_languages];
1320         return language;
1321 }
1322
1323
1324 /// translates a color name to a LyX color code
1325 string color2code(string const & name)
1326 {
1327         char const * const * where = is_known(name, known_basic_colors);
1328         if (where)
1329                 return known_basic_color_codes[where - known_basic_colors];
1330         return name;
1331 }
1332
1333 // }])
1334
1335
1336 } // namespace lyx