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                 /* We could do the following for better round trip support,
 575                  * but this makes the document less portable, so I skip it:
 576                 if (h_fontencoding == lyxrc.fontenc)
 577                         h_fontencoding = "global";
 578                 */
 579                 options.clear();
 580         }
 581
 582         else if (name == "inputenc" || name == "luainputenc") {
 583                 // h_inputencoding is only set when there is not more than one
 584                 // inputenc option because otherwise h_inputencoding must be
 585                 // set to "auto" (the default encoding of the document language)
 586                 // Therefore check for the "," character.
 587                 // It is also only set when there is not more then one babel
 588                 // language option but this is handled in the routine for babel.
 589                 if (opts.find(",") == string::npos && one_language == true)
 590                         h_inputencoding = opts;
 591                 if (!options.empty())
 592                         p.setEncoding(options.back());
 593                 options.clear();
 594         }
 595
 596         else if (is_known(name, known_old_language_packages)) {
 597                 // known language packages from the times before babel
 598                 // if they are found and not also babel, they will be used as
 599                 // cutom language package
 600                 h_language_package = "\\usepackage{" + name + "}";
 601         }
 602
 603         else if (name == "makeidx")
 604                 ; // ignore this
 605
 606         else if (name == "prettyref")
 607                 ; // ignore this
 608
 609         else if (name == "varioref")
 610                 ; // ignore this
 611
 612         else if (name == "verbatim")
 613                 ; // ignore this
 614
 615         else if (name == "nomencl")
 616                 ; // ignore this
 617
 618         else if (name == "textcomp")
 619                 ; // ignore this
 620
 621         else if (name == "url")
 622                 ; // ignore this
 623
 624         else if (name == "subscript")
 625                 ; // ignore this
 626
 627         else if (name == "color") {
 628                 // with the following command this package is only loaded when needed for
 629                 // undefined colors, since we only support the predefined colors
 630                 // only add it if not yet added
 631                 if (!ifundefined_color_set)
 632                         h_preamble << "\\@ifundefined{definecolor}\n {\\usepackage{color}}{}\n";
 633         }
 634
 635         else if (name == "graphicx")
 636                 ; // ignore this
 637
 638         else if (name == "setspace")
 639                 ; // ignore this
 640
 641 #if 0
 642         // do not ignore as long as we don't support all commands (e.g. \xout is missing)
 643         else if (name == "ulem")
 644                 ; // ignore this
 645 #endif
 646
 647         else if (name == "geometry")
 648                 ; // Ignore this, the geometry settings are made by the \geometry
 649                   // command. This command is handled below.
 650
 651         else if (name == "rotfloat")
 652                 ; // ignore this
 653
 654         else if (is_known(name, known_languages))
 655                 h_language = name;
 656
 657         else if (name == "natbib") {
 658                 h_cite_engine = "natbib_authoryear";
 659                 vector<string>::iterator it =
 660                         find(options.begin(), options.end(), "authoryear");
 661                 if (it != options.end())
 662                         options.erase(it);
 663                 else {
 664                         it = find(options.begin(), options.end(), "numbers");
 665                         if (it != options.end()) {
 666                                 h_cite_engine = "natbib_numerical";
 667                                 options.erase(it);
 668                         }
 669                 }
 670         }
 671
 672         else if (name == "jurabib")
 673                 h_cite_engine = "jurabib";
 674
 675         else if (name == "hyperref")
 676                 handle_hyperref(options);
 677
 678         else if (!in_lyx_preamble) {
 679                 if (options.empty())
 680                         h_preamble << "\\usepackage{" << name << "}";
 681                 else {
 682                         h_preamble << "\\usepackage[" << opts << "]{"
 683                                    << name << "}";
 684                         options.clear();
 685                 }
 686         }
 687
 688         // We need to do something with the options...
 689         if (!options.empty())
 690                 cerr << "Ignoring options '" << join(options, ",")
 691                      << "' of package " << name << '.' << endl;
 692
 693         // remove the whitespace
 694         p.skip_spaces();
 695 }
 696
 697
 698 void handle_if(Parser & p, bool in_lyx_preamble)
 699 {
 700         while (p.good()) {
 701                 Token t = p.get_token();
 702                 if (t.cat() == catEscape &&
 703                     is_known(t.cs(), known_if_commands))
 704                         handle_if(p, in_lyx_preamble);
 705                 else {
 706                         if (!in_lyx_preamble)
 707                                 h_preamble << t.asInput();
 708                         if (t.cat() == catEscape && t.cs() == "fi")
 709                                 return;
 710                 }
 711         }
 712 }
 713
 714
 715 void end_preamble(ostream & os, TextClass const & /*textclass*/)
 716 {
 717         // translate from babel to LyX names
 718         h_language = babel2lyx(h_language);
 719
 720         // set the quote language
 721         // LyX only knows the following quotes languages:
 722         // english, swedish, german, polish, french and danish
 723         // (quotes for "japanese" and "chinese-traditional" are missing because
 724         //  they wouldn't be useful: http://www.lyx.org/trac/ticket/6383)
 725         // conversion list taken from
 726         // http://en.wikipedia.org/wiki/Quotation_mark,_non-English_usage
 727         // (quotes for kazakh and interlingua are unknown)
 728         // danish
 729         if (h_language == "danish")
 730                 h_quotes_language = "danish";
 731         // french
 732         else if (is_known(h_language, known_french_quotes_languages))
 733                 h_quotes_language = "french";
 734         // german
 735         else if (is_known(h_language, known_german_quotes_languages))
 736                 h_quotes_language = "german";
 737         // polish
 738         else if (is_known(h_language, known_polish_quotes_languages))
 739                 h_quotes_language = "polish";
 740         // swedish
 741         else if (is_known(h_language, known_swedish_quotes_languages))
 742                 h_quotes_language = "swedish";
 743         //english
 744         else if (is_known(h_language, known_english_quotes_languages))
 745                 h_quotes_language = "english";
 746
 747         // output the LyX file settings
 748         os << "#LyX file created by tex2lyx " << PACKAGE_VERSION << "\n"
 749            << "\\lyxformat " << LYX_FORMAT << '\n'
 750            << "\\begin_document\n"
 751            << "\\begin_header\n"
 752            << "\\textclass " << h_textclass << "\n";
 753         if (!h_preamble.str().empty())
 754                 os << "\\begin_preamble\n" << h_preamble.str() << "\n\\end_preamble\n";
 755         if (!h_options.empty())
 756                 os << "\\options " << h_options << "\n";
 757         os << "\\use_default_options " << h_use_default_options << "\n"
 758            << modules_placeholder
 759            << "\\language " << h_language << "\n"
 760            << "\\language_package " << h_language_package << "\n"
 761            << "\\inputencoding " << h_inputencoding << "\n"
 762            << "\\fontencoding " << h_fontencoding << "\n"
 763            << "\\font_roman " << h_font_roman << "\n"
 764            << "\\font_sans " << h_font_sans << "\n"
 765            << "\\font_typewriter " << h_font_typewriter << "\n"
 766            << "\\font_default_family " << h_font_default_family << "\n"
 767            << "\\font_sc " << h_font_sc << "\n"
 768            << "\\font_osf " << h_font_osf << "\n"
 769            << "\\font_sf_scale " << h_font_sf_scale << "\n"
 770            << "\\font_tt_scale " << h_font_tt_scale << "\n"
 771            << "\\graphics " << h_graphics << "\n";
 772         if (!h_float_placement.empty())
 773                 os << "\\float_placement " << h_float_placement << "\n";
 774         os << "\\paperfontsize " << h_paperfontsize << "\n"
 775            << "\\spacing " << h_spacing << "\n"
 776            << "\\use_hyperref " << h_use_hyperref << '\n';
 777         if (h_use_hyperref == "1") {
 778                 if (!h_pdf_title.empty())
 779                         os << "\\pdf_title \"" << h_pdf_title << "\"\n";
 780                 if (!h_pdf_author.empty())
 781                         os << "\\pdf_author \"" << h_pdf_author << "\"\n";
 782                 if (!h_pdf_subject.empty())
 783                         os << "\\pdf_subject \"" << h_pdf_subject << "\"\n";
 784                 if (!h_pdf_keywords.empty())
 785                         os << "\\pdf_keywords \"" << h_pdf_keywords << "\"\n";
 786                 os << "\\pdf_bookmarks " << h_pdf_bookmarks << "\n"
 787                       "\\pdf_bookmarksnumbered " << h_pdf_bookmarksnumbered << "\n"
 788                       "\\pdf_bookmarksopen " << h_pdf_bookmarksopen << "\n"
 789                       "\\pdf_bookmarksopenlevel " << h_pdf_bookmarksopenlevel << "\n"
 790                       "\\pdf_breaklinks " << h_pdf_breaklinks << "\n"
 791                       "\\pdf_pdfborder " << h_pdf_pdfborder << "\n"
 792                       "\\pdf_colorlinks " << h_pdf_colorlinks << "\n"
 793                       "\\pdf_backref " << h_pdf_backref << "\n"
 794                       "\\pdf_pdfusetitle " << h_pdf_pdfusetitle << '\n';
 795                 if (!h_pdf_pagemode.empty())
 796                         os << "\\pdf_pagemode " << h_pdf_pagemode << '\n';
 797                 if (!h_pdf_quoted_options.empty())
 798                         os << "\\pdf_quoted_options \"" << h_pdf_quoted_options << "\"\n";
 799         }
 800         os << "\\papersize " << h_papersize << "\n"
 801            << "\\use_geometry " << h_use_geometry << "\n"
 802            << "\\use_amsmath " << h_use_amsmath << "\n"
 803            << "\\use_esint " << h_use_esint << "\n"
 804            << "\\use_mhchem " << h_use_mhchem << "\n"
 805            << "\\use_mathdots " << h_use_mathdots << "\n"
 806            << "\\use_undertilde " << h_use_undertilde << "\n"
 807            << "\\cite_engine " << h_cite_engine << "\n"
 808            << "\\use_bibtopic " << h_use_bibtopic << "\n"
 809            << "\\paperorientation " << h_paperorientation << '\n'
 810            << "\\suppress_date " << h_suppress_date << '\n'
 811            << "\\use_refstyle " << h_use_refstyle << '\n';
 812         if (!h_fontcolor.empty())
 813                 os << "\\fontcolor " << h_fontcolor << '\n';
 814         if (!h_notefontcolor.empty())
 815                 os << "\\notefontcolor " << h_notefontcolor << '\n';
 816         if (!h_backgroundcolor.empty())
 817                 os << "\\backgroundcolor " << h_backgroundcolor << '\n';
 818         if (!h_boxbgcolor.empty())
 819                 os << "\\boxbgcolor " << h_boxbgcolor << '\n';
 820         os << h_margins
 821            << "\\secnumdepth " << h_secnumdepth << "\n"
 822            << "\\tocdepth " << h_tocdepth << "\n"
 823            << "\\paragraph_separation " << h_paragraph_separation << "\n";
 824         if (h_paragraph_separation == "skip")
 825                 os << "\\defskip " << h_defskip << "\n";
 826         else
 827                 os << "\\paragraph_indentation " << h_paragraph_indentation << "\n";
 828         os << "\\quotes_language " << h_quotes_language << "\n"
 829            << "\\papercolumns " << h_papercolumns << "\n"
 830            << "\\papersides " << h_papersides << "\n"
 831            << "\\paperpagestyle " << h_paperpagestyle << "\n";
 832         if (!h_listings_params.empty())
 833                 os << "\\listings_params " << h_listings_params << "\n";
 834         os << "\\tracking_changes " << h_tracking_changes << "\n"
 835            << "\\output_changes " << h_output_changes << "\n"
 836            << "\\html_math_output " << h_html_math_output << "\n"
 837            << "\\html_css_as_file " << h_html_css_as_file << "\n"
 838            << "\\html_be_strict " << h_html_be_strict << "\n"
 839            << "\\end_header\n\n"
 840            << "\\begin_body\n";
 841         // clear preamble for subdocuments
 842         h_preamble.str("");
 843 }
 844
 845 } // anonymous namespace
 846
 847
 848 void parse_preamble(Parser & p, ostream & os,
 849         string const & forceclass, TeX2LyXDocClass & tc)
 850 {
 851         // initialize fixed types
 852         special_columns['D'] = 3;
 853         bool is_full_document = false;
 854         bool is_lyx_file = false;
 855         bool in_lyx_preamble = false;
 856
 857         // determine whether this is a full document or a fragment for inclusion
 858         while (p.good()) {
 859                 Token const & t = p.get_token();
 860
 861                 if (t.cat() == catEscape && t.cs() == "documentclass") {
 862                         is_full_document = true;
 863                         break;
 864                 }
 865         }
 866         p.reset();
 867
 868         while (is_full_document && p.good()) {
 869                 Token const & t = p.get_token();
 870
 871 #ifdef FILEDEBUG
 872                 cerr << "t: " << t << "\n";
 873 #endif
 874
 875                 //
 876                 // cat codes
 877                 //
 878                 if (!in_lyx_preamble &&
 879                     (t.cat() == catLetter ||
 880                      t.cat() == catSuper ||
 881                      t.cat() == catSub ||
 882                      t.cat() == catOther ||
 883                      t.cat() == catMath ||
 884                      t.cat() == catActive ||
 885                      t.cat() == catBegin ||
 886                      t.cat() == catEnd ||
 887                      t.cat() == catAlign ||
 888                      t.cat() == catParameter))
 889                         h_preamble << t.cs();
 890
 891                 else if (!in_lyx_preamble &&
 892                          (t.cat() == catSpace || t.cat() == catNewline))
 893                         h_preamble << t.asInput();
 894
 895                 else if (t.cat() == catComment) {
 896                         static regex const islyxfile("%% LyX .* created this file");
 897                         static regex const usercommands("User specified LaTeX commands");
 898
 899                         string const comment = t.asInput();
 900
 901                         // magically switch encoding default if it looks like XeLaTeX
 902                         static string const magicXeLaTeX =
 903                                 "% This document must be compiled with XeLaTeX ";
 904                         if (comment.size() > magicXeLaTeX.size()
 905                                   && comment.substr(0, magicXeLaTeX.size()) == magicXeLaTeX
 906                                   && h_inputencoding == "auto") {
 907                                 cerr << "XeLaTeX comment found, switching to UTF8\n";
 908                                 h_inputencoding = "utf8";
 909                         }
 910                         smatch sub;
 911                         if (regex_search(comment, sub, islyxfile)) {
 912                                 is_lyx_file = true;
 913                                 in_lyx_preamble = true;
 914                         } else if (is_lyx_file
 915                                    && regex_search(comment, sub, usercommands))
 916                                 in_lyx_preamble = false;
 917                         else if (!in_lyx_preamble)
 918                                 h_preamble << t.asInput();
 919                 }
 920
 921                 else if (t.cs() == "pagestyle")
 922                         h_paperpagestyle = p.verbatim_item();
 923
 924                 else if (t.cs() == "date") {
 925                         string argument = p.getArg('{', '}');
 926                         if (argument.empty())
 927                                 h_suppress_date = "true";
 928                         else
 929                                 h_preamble << t.asInput() << '{' << argument << '}';
 930                 }
 931
 932                 else if (t.cs() == "color") {
 933                         string argument = p.getArg('{', '}');
 934                         // check the case that a standard color is used
 935                         if (is_known(argument, known_basic_colors))
 936                                 h_fontcolor = color2code(argument);
 937                         // check the case that LyX's document_fontcolor is defined
 938                         // but not used for \color
 939                         if (argument != "document_fontcolor"
 940                                 && !is_known(argument, known_basic_colors)) {
 941                                 h_preamble << t.asInput() << '{' << argument << '}';
 942                                 // the color might already be set because \definecolor
 943                                 // is parsed before this
 944                                 h_fontcolor = "";
 945                         }
 946                 }
 947
 948                 else if (t.cs() == "pagecolor") {
 949                         string argument = p.getArg('{', '}');
 950                         // check the case that a standard color is used
 951                         if (is_known(argument, known_basic_colors))
 952                                 h_backgroundcolor = color2code(argument);
 953                         // check the case that LyX's page_backgroundcolor is defined
 954                         // but not used for \pagecolor
 955                         if (argument != "page_backgroundcolor"
 956                                 && !is_known(argument, known_basic_colors)) {
 957                                 h_preamble << t.asInput() << '{' << argument << '}';
 958                                 // the color might already be set because \definecolor
 959                                 // is parsed before this
 960                                 h_backgroundcolor = "";
 961                         }
 962                 }
 963
 964                 else if (t.cs() == "makeatletter") {
 965                         // LyX takes care of this
 966                         p.setCatCode('@', catLetter);
 967                 }
 968
 969                 else if (t.cs() == "makeatother") {
 970                         // LyX takes care of this
 971                         p.setCatCode('@', catOther);
 972                 }
 973
 974                 else if (t.cs() == "newcommand" || t.cs() == "newcommandx"
 975                       || t.cs() == "renewcommand" || t.cs() == "renewcommandx"
 976                       || t.cs() == "providecommand" || t.cs() == "providecommandx"
 977                                 || t.cs() == "DeclareRobustCommand"
 978                       || t.cs() == "DeclareRobustCommandx"
 979                                 || t.cs() == "ProvideTextCommandDefault"
 980                                 || t.cs() == "DeclareMathAccent") {
 981                         bool star = false;
 982                         if (p.next_token().character() == '*') {
 983                                 p.get_token();
 984                                 star = true;
 985                         }
 986                         string const name = p.verbatim_item();
 987                         string const opt1 = p.getFullOpt();
 988                         string const opt2 = p.getFullOpt();
 989                         string const body = p.verbatim_item();
 990                         // font settings
 991                         if (name == "\\rmdefault")
 992                                 if (is_known(body, known_roman_fonts))
 993                                         h_font_roman = body;
 994                         if (name == "\\sfdefault")
 995                                 if (is_known(body, known_sans_fonts))
 996                                         h_font_sans = body;
 997                         if (name == "\\ttdefault")
 998                                 if (is_known(body, known_typewriter_fonts))
 999                                         h_font_typewriter = body;
1000                         if (name == "\\familydefault") {
1001                                 string family = body;
1002                                 // remove leading "\"
1003                                 h_font_default_family = family.erase(0,1);
1004                         }
1005
1006                         // Add the command to the known commands
1007                         add_known_command(name, opt1, !opt2.empty(), from_utf8(body));
1008
1009                         // only non-lyxspecific stuff
1010                         if (!in_lyx_preamble) {
1011                                 ostringstream ss;
1012                                 ss << '\\' << t.cs();
1013                                 if (star)
1014                                         ss << '*';
1015                                 ss << '{' << name << '}' << opt1 << opt2
1016                                    << '{' << body << "}";
1017                                 h_preamble << ss.str();
1018 /*
1019                                 ostream & out = in_preamble ? h_preamble : os;
1020                                 out << "\\" << t.cs() << "{" << name << "}"
1021                                     << opts << "{" << body << "}";
1022 */
1023                         }
1024                 }
1025
1026                 else if (t.cs() == "documentclass") {
1027                         vector<string>::iterator it;
1028                         vector<string> opts = split_options(p.getArg('[', ']'));
1029                         handle_opt(opts, known_fontsizes, h_paperfontsize);
1030                         delete_opt(opts, known_fontsizes);
1031                         // delete "pt" at the end
1032                         string::size_type i = h_paperfontsize.find("pt");
1033                         if (i != string::npos)
1034                                 h_paperfontsize.erase(i);
1035                         // The documentclass options are always parsed before the options
1036                         // of the babel call so that a language cannot overwrite the babel
1037                         // options.
1038                         handle_opt(opts, known_languages, h_language);
1039                         delete_opt(opts, known_languages);
1040
1041                         // paper orientation
1042                         if ((it = find(opts.begin(), opts.end(), "landscape")) != opts.end()) {
1043                                 h_paperorientation = "landscape";
1044                                 opts.erase(it);
1045                         }
1046                         // paper sides
1047                         if ((it = find(opts.begin(), opts.end(), "oneside"))
1048                                  != opts.end()) {
1049                                 h_papersides = "1";
1050                                 opts.erase(it);
1051                         }
1052                         if ((it = find(opts.begin(), opts.end(), "twoside"))
1053                                  != opts.end()) {
1054                                 h_papersides = "2";
1055                                 opts.erase(it);
1056                         }
1057                         // paper columns
1058                         if ((it = find(opts.begin(), opts.end(), "onecolumn"))
1059                                  != opts.end()) {
1060                                 h_papercolumns = "1";
1061                                 opts.erase(it);
1062                         }
1063                         if ((it = find(opts.begin(), opts.end(), "twocolumn"))
1064                                  != opts.end()) {
1065                                 h_papercolumns = "2";
1066                                 opts.erase(it);
1067                         }
1068                         // paper sizes
1069                         // some size options are know to any document classes, other sizes
1070                         // are handled by the \geometry command of the geometry package
1071                         handle_opt(opts, known_class_paper_sizes, h_papersize);
1072                         delete_opt(opts, known_class_paper_sizes);
1073                         // the remaining options
1074                         h_options = join(opts, ",");
1075                         // FIXME This does not work for classes that have a
1076                         //       different name in LyX than in LaTeX
1077                         h_textclass = p.getArg('{', '}');
1078                 }
1079
1080                 else if (t.cs() == "usepackage") {
1081                         string const options = p.getArg('[', ']');
1082                         string const name = p.getArg('{', '}');
1083                         vector<string> vecnames;
1084                         split(name, vecnames, ',');
1085                         vector<string>::const_iterator it  = vecnames.begin();
1086                         vector<string>::const_iterator end = vecnames.end();
1087                         for (; it != end; ++it)
1088                                 handle_package(p, trimSpaceAndEol(*it), options,
1089                                                in_lyx_preamble);
1090                 }
1091
1092                 else if (t.cs() == "inputencoding") {
1093                         string const encoding = p.getArg('{','}');
1094                         h_inputencoding = encoding;
1095                         p.setEncoding(encoding);
1096                 }
1097
1098                 else if (t.cs() == "newenvironment") {
1099                         string const name = p.getArg('{', '}');
1100                         string const opt1 = p.getFullOpt();
1101                         string const opt2 = p.getFullOpt();
1102                         string const beg = p.verbatim_item();
1103                         string const end = p.verbatim_item();
1104                         if (!in_lyx_preamble) {
1105                                 h_preamble << "\\newenvironment{" << name
1106                                            << '}' << opt1 << opt2 << '{'
1107                                            << beg << "}{" << end << '}';
1108                         }
1109                         add_known_environment(name, opt1, !opt2.empty(),
1110                                               from_utf8(beg), from_utf8(end));
1111
1112                 }
1113
1114                 else if (t.cs() == "def") {
1115                         string name = p.get_token().cs();
1116                         while (p.next_token().cat() != catBegin)
1117                                 name += p.get_token().cs();
1118                         if (!in_lyx_preamble)
1119                                 h_preamble << "\\def\\" << name << '{'
1120                                            << p.verbatim_item() << "}";
1121                 }
1122
1123                 else if (t.cs() == "newcolumntype") {
1124                         string const name = p.getArg('{', '}');
1125                         trimSpaceAndEol(name);
1126                         int nargs = 0;
1127                         string opts = p.getOpt();
1128                         if (!opts.empty()) {
1129                                 istringstream is(string(opts, 1));
1130                                 is >> nargs;
1131                         }
1132                         special_columns[name[0]] = nargs;
1133                         h_preamble << "\\newcolumntype{" << name << "}";
1134                         if (nargs)
1135                                 h_preamble << "[" << nargs << "]";
1136                         h_preamble << "{" << p.verbatim_item() << "}";
1137                 }
1138
1139                 else if (t.cs() == "setcounter") {
1140                         string const name = p.getArg('{', '}');
1141                         string const content = p.getArg('{', '}');
1142                         if (name == "secnumdepth")
1143                                 h_secnumdepth = content;
1144                         else if (name == "tocdepth")
1145                                 h_tocdepth = content;
1146                         else
1147                                 h_preamble << "\\setcounter{" << name << "}{" << content << "}";
1148                 }
1149
1150                 else if (t.cs() == "setlength") {
1151                         string const name = p.verbatim_item();
1152                         string const content = p.verbatim_item();
1153                         // the paragraphs are only not indented when \parindent is set to zero
1154                         if (name == "\\parindent" && content != "") {
1155                                 if (content[0] == '0')
1156                                         h_paragraph_separation = "skip";
1157                                 else
1158                                         h_paragraph_indentation = translate_len(content);
1159                         } else if (name == "\\parskip") {
1160                                 if (content == "\\smallskipamount")
1161                                         h_defskip = "smallskip";
1162                                 else if (content == "\\medskipamount")
1163                                         h_defskip = "medskip";
1164                                 else if (content == "\\bigskipamount")
1165                                         h_defskip = "bigskip";
1166                                 else
1167                                         h_defskip = content;
1168                         } else
1169                                 h_preamble << "\\setlength{" << name << "}{" << content << "}";
1170                 }
1171
1172                 else if (t.cs() == "onehalfspacing")
1173                         h_spacing = "onehalf";
1174
1175                 else if (t.cs() == "doublespacing")
1176                         h_spacing = "double";
1177
1178                 else if (t.cs() == "setstretch")
1179                         h_spacing = "other " + p.verbatim_item();
1180
1181                 else if (t.cs() == "begin") {
1182                         string const name = p.getArg('{', '}');
1183                         if (name == "document")
1184                                 break;
1185                         h_preamble << "\\begin{" << name << "}";
1186                 }
1187
1188                 else if (t.cs() == "geometry") {
1189                         h_use_geometry = "true";
1190                         vector<string> opts = split_options(p.getArg('{', '}'));
1191                         vector<string>::iterator it;
1192                         // paper orientation
1193                         if ((it = find(opts.begin(), opts.end(), "landscape")) != opts.end()) {
1194                                 h_paperorientation = "landscape";
1195                                 opts.erase(it);
1196                         }
1197                         // paper size
1198                         handle_opt(opts, known_paper_sizes, h_papersize);
1199                         delete_opt(opts, known_paper_sizes);
1200                         // page margins
1201                         char const * const * margin = known_paper_margins;
1202                         int k = -1;
1203                         for (; *margin; ++margin) {
1204                                 k += 1;
1205                                 // search for the "=" in e.g. "lmargin=2cm" to get the value
1206                                 for(size_t i = 0; i != opts.size(); i++) {
1207                                         if (opts.at(i).find(*margin) != string::npos) {
1208                                                 string::size_type pos = opts.at(i).find("=");
1209                                                 string value = opts.at(i).substr(pos + 1);
1210                                                 string name = known_coded_paper_margins[k];
1211                                                 h_margins += "\\" + name + " " + value + "\n";
1212                                         }
1213                                 }
1214                         }
1215                 }
1216
1217                 else if (t.cs() == "definecolor") {
1218                         string const color = p.getArg('{', '}');
1219                         string const space = p.getArg('{', '}');
1220                         string const value = p.getArg('{', '}');
1221                         if (color == "document_fontcolor" && space == "rgb") {
1222                                 RGBColor c(RGBColorFromLaTeX(value));
1223                                 h_fontcolor = X11hexname(c);
1224                         } else if (color == "note_fontcolor" && space == "rgb") {
1225                                 RGBColor c(RGBColorFromLaTeX(value));
1226                                 h_notefontcolor = X11hexname(c);
1227                         } else if (color == "page_backgroundcolor" && space == "rgb") {
1228                                 RGBColor c(RGBColorFromLaTeX(value));
1229                                 h_backgroundcolor = X11hexname(c);
1230                         } else if (color == "shadecolor" && space == "rgb") {
1231                                 RGBColor c(RGBColorFromLaTeX(value));
1232                                 h_boxbgcolor = X11hexname(c);
1233                         } else {
1234                                 h_preamble << "\\definecolor{" << color
1235                                            << "}{" << space << "}{" << value
1236                                            << '}';
1237                         }
1238                 }
1239
1240                 else if (t.cs() == "jurabibsetup") {
1241                         // FIXME p.getArg('{', '}') is most probably wrong (it
1242                         //       does not handle nested braces).
1243                         //       Use p.verbatim_item() instead.
1244                         vector<string> jurabibsetup =
1245                                 split_options(p.getArg('{', '}'));
1246                         // add jurabibsetup to the jurabib package options
1247                         add_package("jurabib", jurabibsetup);
1248                         if (!jurabibsetup.empty()) {
1249                                 h_preamble << "\\jurabibsetup{"
1250                                            << join(jurabibsetup, ",") << '}';
1251                         }
1252                 }
1253
1254                 else if (t.cs() == "hypersetup") {
1255                         vector<string> hypersetup =
1256                                 split_options(p.verbatim_item());
1257                         // add hypersetup to the hyperref package options
1258                         handle_hyperref(hypersetup);
1259                         if (!hypersetup.empty()) {
1260                                 h_preamble << "\\hypersetup{"
1261                                            << join(hypersetup, ",") << '}';
1262                         }
1263                 }
1264
1265                 else if (is_known(t.cs(), known_if_3arg_commands)) {
1266                         // prevent misparsing of \usepackage if it is used
1267                         // as an argument (see e.g. our own output of
1268                         // \@ifundefined above)
1269                         string const arg1 = p.verbatim_item();
1270                         string const arg2 = p.verbatim_item();
1271                         string const arg3 = p.verbatim_item();
1272                         // test case \@ifundefined{date}{}{\date{}}
1273                         if (arg1 == "date" && arg2.empty() && arg3 == "\\date{}") {
1274                                 h_suppress_date = "true";
1275                         // test case \@ifundefined{definecolor}{\usepackage{color}}{}
1276                         // because we could pollute the preamble with it in roundtrips
1277                         } else if (arg1 == "definecolor" && arg2 == "\\usepackage{color}"
1278                                 && arg3.empty()) {
1279                                 ifundefined_color_set = true;
1280                         } else if (!in_lyx_preamble) {
1281                                 h_preamble << t.asInput()
1282                                            << '{' << arg1 << '}'
1283                                            << '{' << arg2 << '}'
1284                                            << '{' << arg3 << '}';
1285                         }
1286                 }
1287
1288                 else if (is_known(t.cs(), known_if_commands)) {
1289                         // must not parse anything in conditional code, since
1290                         // LyX would output the parsed contents unconditionally
1291                         if (!in_lyx_preamble)
1292                                 h_preamble << t.asInput();
1293                         handle_if(p, in_lyx_preamble);
1294                 }
1295
1296                 else if (!t.cs().empty() && !in_lyx_preamble)
1297                         h_preamble << '\\' << t.cs();
1298         }
1299
1300         // remove the whitespace
1301         p.skip_spaces();
1302
1303         // Force textclass if the user wanted it
1304         if (!forceclass.empty())
1305                 h_textclass = forceclass;
1306         if (noweb_mode && !prefixIs(h_textclass, "literate-"))
1307                 h_textclass.insert(0, "literate-");
1308         tc.setName(h_textclass);
1309         if (!tc.load()) {
1310                 cerr << "Error: Could not read layout file for textclass \"" << h_textclass << "\"." << endl;
1311                 exit(EXIT_FAILURE);
1312         }
1313         if (h_papersides.empty()) {
1314                 ostringstream ss;
1315                 ss << tc.sides();
1316                 h_papersides = ss.str();
1317         }
1318         end_preamble(os, tc);
1319 }
1320
1321
1322 /// translates a babel language name to a LyX language name
1323 string babel2lyx(string const & language)
1324 {
1325         char const * const * where = is_known(language, known_languages);
1326         if (where)
1327                 return known_coded_languages[where - known_languages];
1328         return language;
1329 }
1330
1331
1332 /// translates a color name to a LyX color code
1333 string color2code(string const & name)
1334 {
1335         char const * const * where = is_known(name, known_basic_colors);
1336         if (where)
1337                 return known_basic_color_codes[where - known_basic_colors];
1338         return name;
1339 }
1340
1341 // }])
1342
1343
1344 } // namespace lyx