src/tex2lyx/tex2lyx.C

   1 /** The .tex to .lyx converter
   2     \author André Pönitz (2003)
   3  */
   4
   5 // {[(
   6
   7 #include <config.h>
   8
   9 #include <algorithm>
  10 #include <cctype>
  11 #include <fstream>
  12 #include <iostream>
  13 #include <stack>
  14 #include <string>
  15 #include <vector>
  16
  17 #include "Lsstream.h"
  18
  19 #include "texparser.h"
  20
  21 using std::count_if;
  22 using std::cout;
  23 using std::cerr;
  24 using std::endl;
  25 using std::fill;
  26 using std::getline;
  27 using std::ios;
  28 using std::ifstream;
  29 using std::istream;
  30 using std::istringstream;
  31 using std::ostream;
  32 using std::ostringstream;
  33 using std::stack;
  34 using std::string;
  35 using std::vector;
  36
  37
  38 namespace {
  39
  40 void parse(Parser & p, ostream & os, unsigned flags, mode_type mode);
  41
  42 char const OPEN = '<';
  43 char const CLOSE = '>';
  44
  45 // rather brutish way to code table structure in a string:
  46 //
  47 //  \begin{tabular}{ccc}
  48 //    1 & 2 & 3\\
  49 //    \multicolumn{2}{c}{4} & 5\\
  50 //    6 & 7 \\
  51 //  \end{tabular}
  52 //
  53 // gets "translated" to:
  54 //
  55 //  1 TAB 2 TAB 3 LINE
  56 //  2 MULT c MULT 4 TAB 5 LINE
  57 //  5 TAB 7 LINE
  58
  59 char const TAB  = '\001';
  60 char const LINE = '\002';
  61 char const MULT = '\003';
  62
  63 const char * known_languages[] = { "austrian", "babel", "bahasa", "basque",
  64 "breton", "british", "bulgarian", "catalan", "croatian", "czech", "danish",
  65 "dutch", "english", "esperanto", "estonian", "finnish", "francais",
  66 "frenchb", "galician", "german", "germanb", "greek", "hebcal", "hebfont",
  67 "hebrew", "hebrew_newcode", "hebrew_oldcode", "hebrew_p", "hyphen",
  68 "icelandic", "irish", "italian", "latin", "lgrcmr", "lgrcmro", "lgrcmss",
  69 "lgrcmtt", "lgrenc", "lgrlcmss", "lgrlcmtt", "lheclas", "lhecmr",
  70 "lhecmss", "lhecmtt", "lhecrml", "lheenc", "lhefr", "lheredis", "lheshold",
  71 "lheshscr", "lheshstk", "lsorbian", "magyar", "naustrian", "ngermanb",
  72 "ngerman", "norsk", "polish", "portuges", "rlbabel", "romanian",
  73 "russianb", "samin", "scottish", "serbian", "slovak", "slovene", "spanish",
  74 "swedish", "turkish", "ukraineb", "usorbian", "welsh", 0};
  75
  76 char const * known_fontsizes[] = { "10pt", "11pt", "12pt", 0 };
  77
  78 char const * known_headings[] = { "caption", "title", "author",
  79 "paragraph", "chapter", "section", "subsection", "subsubsection", 0 };
  80
  81 char const * known_math_envs[] = { "equation", "eqnarray", "eqnarray*",
  82 "align", "align*", 0};
  83
  84 char const * known_latex_commands[] = { "ref", "cite", "label", "index",
  85 "printindex", 0 };
  86
  87 // LaTeX names for quotes
  88 char const * known_quotes[] = { "glqq", "grqq", 0};
  89
  90 // the same as known_quotes with .lyx names
  91 char const * known_coded_quotes[] = { "gld", "grd", 0};
  92
  93
  94
  95 // some ugly stuff
  96 ostringstream h_preamble;
  97 string h_textclass               = "article";
  98 string h_options                 = "";
  99 string h_language                = "english";
 100 string h_inputencoding           = "latin1";
 101 string h_fontscheme              = "default";
 102 string h_graphics                = "default";
 103 string h_paperfontsize           = "default";
 104 string h_spacing                 = "single";
 105 string h_papersize               = "default";
 106 string h_paperpackage            = "default";
 107 string h_use_geometry            = "0";
 108 string h_use_amsmath             = "0";
 109 string h_use_natbib              = "0";
 110 string h_use_numerical_citations = "0";
 111 string h_paperorientation        = "portrait";
 112 string h_secnumdepth             = "3";
 113 string h_tocdepth                = "3";
 114 string h_paragraph_separation    = "indent";
 115 string h_defskip                 = "medskip";
 116 string h_quotes_language         = "english";
 117 string h_quotes_times            = "1";
 118 string h_papercolumns            = "1";
 119 string h_papersides              = "1";
 120 string h_paperpagestyle          = "default";
 121 string h_tracking_changes        = "0";
 122
 123 // indicates whether we are in the preamble
 124 bool in_preamble = true;
 125
 126 // current stack of nested environments
 127 stack<string> active_environments;
 128
 129
 130 string cap(string s)
 131 {
 132         if (s.size())
 133                 s[0] = toupper(s[0]);
 134         return s;
 135 }
 136
 137
 138 string const trim(string const & a, char const * p = " ")
 139 {
 140         // lyx::Assert(p);
 141
 142         if (a.empty() || !*p)
 143                 return a;
 144
 145         string::size_type r = a.find_last_not_of(p);
 146         string::size_type l = a.find_first_not_of(p);
 147
 148         // Is this the minimal test? (lgb)
 149         if (r == string::npos && l == string::npos)
 150                 return string();
 151
 152         return a.substr(l, r - l + 1);
 153 }
 154
 155
 156 void split(string const & s, vector<string> & result, char delim)
 157 {
 158         istringstream is(s);
 159         string t;
 160         while (getline(is, t, delim))
 161                 result.push_back(t);
 162 }
 163
 164
 165 string join(vector<string> const & input, char delim)
 166 {
 167         ostringstream os;
 168         for (size_t i = 0; i != input.size(); ++i) {
 169                 if (i)
 170                         os << delim;
 171                 os << input[i];
 172         }
 173         return os.str();
 174 }
 175
 176
 177 char const ** is_known(string const & str, char const ** what)
 178 {
 179         for ( ; *what; ++what)
 180                 if (str == *what)
 181                         return what;
 182         return 0;
 183 }
 184
 185
 186 void handle_opt(vector<string> & opts, char const ** what, string & target)
 187 {
 188         if (opts.empty())
 189                 return;
 190
 191         for ( ; *what; ++what) {
 192                 vector<string>::iterator it = find(opts.begin(), opts.end(), *what);
 193                 if (it != opts.end()) {
 194                         //cerr << "### found option '" << *what << "'\n";
 195                         target = *what;
 196                         opts.erase(it);
 197                         return;
 198                 }
 199         }
 200 }
 201
 202
 203 bool is_math_env(string const & name)
 204 {
 205         for (char const ** what = known_math_envs; *what; ++what)
 206                 if (*what == name)
 207                         return true;
 208         return false;
 209 }
 210
 211
 212 void begin_inset(ostream & os, string const & name)
 213 {
 214         os << "\n\\begin_inset " << name;
 215 }
 216
 217
 218 void end_inset(ostream & os)
 219 {
 220         os << "\n\\end_inset\n";
 221 }
 222
 223
 224 string curr_env()
 225 {
 226         return active_environments.empty() ? string() : active_environments.top();
 227 }
 228
 229
 230 void handle_ert(ostream & os, string const & s)
 231 {
 232         begin_inset(os, "ERT");
 233         os << "\nstatus Collapsed\n\n\\layout Standard\n\n";
 234         for (string::const_iterator it = s.begin(), et = s.end(); it != et; ++it) {
 235                 if (*it == '\\')
 236                         os << "\n\\backslash\n";
 237                 else
 238                         os << *it;
 239         }
 240         end_inset(os);
 241 }
 242
 243
 244 void handle_par(ostream & os)
 245 {
 246         if (active_environments.empty())
 247                 return;
 248         os << "\n\\layout ";
 249         string s = curr_env();
 250         if (s == "document" || s == "table") {
 251                 os << "Standard\n\n";
 252                 return;
 253         }
 254         if (s == "lyxcode") {
 255                 os << "LyX-Code\n\n";
 256                 return;
 257         }
 258         os << cap(s) << "\n\n";
 259 }
 260
 261
 262 void handle_package(string const & name, string const & options)
 263 {
 264         //cerr << "handle_package: '" << name << "'\n";
 265         if (name == "a4wide") {
 266                 h_papersize = "a4paper";
 267                 h_paperpackage = "widemarginsa4";
 268         } else if (name == "ae")
 269                 h_fontscheme = "ae";
 270         else if (name == "aecompl")
 271                 h_fontscheme = "ae";
 272         else if (name == "amsmath")
 273                 h_use_amsmath = "1";
 274         else if (name == "amssymb")
 275                 h_use_amsmath = "1";
 276         else if (name == "babel")
 277                 ; // ignore this
 278         else if (name == "fontenc")
 279                 ; // ignore this
 280         else if (name == "inputenc")
 281                 h_inputencoding = options;
 282         else if (name == "makeidx")
 283                 ; // ignore this
 284         else if (name == "verbatim")
 285                 ; // ignore this
 286         else if (is_known(name, known_languages)) {
 287                 h_language = name;
 288                 h_quotes_language = name;
 289         } else {
 290                 if (options.size())
 291                         h_preamble << "\\usepackage[" << options << "]{" << name << "}\n";
 292                 else
 293                         h_preamble << "\\usepackage{" << name << "}\n";
 294         }
 295 }
 296
 297
 298 vector<string> extract_col_align(string const & s)
 299 {
 300         vector<string> res;
 301         for (size_t i = 0; i < s.size(); ++i) {
 302                 switch (s[i]) {
 303                         case 'c': res.push_back("center"); break;
 304                         case 'l': res.push_back("left");   break;
 305                         case 'r': res.push_back("right");  break;
 306                         default : res.push_back("right");  break;
 307                 }
 308         }
 309         return res;
 310 }
 311
 312
 313 void handle_tabular(Parser & p, ostream & os, mode_type mode)
 314 {
 315         begin_inset(os, "Tabular \n");
 316         string colopts = p.verbatimItem();
 317         vector<string> colalign = extract_col_align(colopts);
 318         ostringstream ss;
 319         parse(p, ss, FLAG_END, mode);
 320         vector<string> lines;
 321         split(ss.str(), lines, LINE);
 322         const size_t cols = colalign.size();
 323         const size_t rows = lines.size();
 324         os << "<lyxtabular version=\"3\" rows=\"" << rows
 325                  << "\" columns=\"" << cols << "\">\n"
 326                  << "<features>\n";
 327         for (size_t c = 0; c < cols; ++c)
 328                 os << "<column alignment=\"" << colalign[c] << "\""
 329                          << " valignment=\"top\""
 330                          << " width=\"0pt\""
 331                          << ">\n";
 332         for (size_t r = 0; r < rows; ++r) {
 333                 vector<string> cells;
 334                 split(lines[r], cells, TAB);
 335                 while (cells.size() < cols)
 336                         cells.push_back(string());
 337                 //os << "<row bottomline=\"true\">\n";
 338                 os << "<row>\n";
 339                 for (size_t c = 0; c < cols; ++c) {
 340                         os << "<cell";
 341                         string alignment = "center";
 342                         vector<string> parts;
 343                         split(cells[c], parts, MULT);
 344                         if (parts.size() > 2) {
 345                                 os << " multicolumn=\"" << parts[0] << "\"";
 346                                 alignment = parts[1];
 347                         }
 348                         os << " alignment=\"" << alignment << "\""
 349                                  << " valignment=\"top\""
 350                                  << " topline=\"true\""
 351                                  << " leftline=\"true\""
 352                                  << " usebox=\"none\""
 353                                  << ">";
 354                         begin_inset(os, "Text");
 355                         os << "\n\n\\layout Standard\n\n";
 356                         os << parts.back();
 357                         end_inset(os);
 358                         os << "</cell>\n";
 359                 }
 360                 os << "</row>\n";
 361         }
 362         os << "</lyxtabular>\n";
 363         end_inset(os);
 364 }
 365
 366
 367 string wrap(string const & cmd, string const & str)
 368 {
 369         return OPEN + cmd + ' ' + str + CLOSE;
 370 }
 371
 372
 373 void end_preamble(ostream & os)
 374 {
 375         in_preamble = false;
 376         os << "# tex2lyx 0.0.2 created this file\n"
 377            << "\\lyxformat 222\n"
 378            << "\\textclass " << h_textclass << "\n"
 379            << "\\begin_preamble\n" << h_preamble.str() << "\n\\end_preamble\n"
 380            << "\\options " << h_options << "\n"
 381            << "\\language " << h_language << "\n"
 382            << "\\inputencoding " << h_inputencoding << "\n"
 383            << "\\fontscheme " << h_fontscheme << "\n"
 384            << "\\graphics " << h_graphics << "\n"
 385            << "\\paperfontsize " << h_paperfontsize << "\n"
 386            << "\\spacing " << h_spacing << "\n"
 387            << "\\papersize " << h_papersize << "\n"
 388            << "\\paperpackage " << h_paperpackage << "\n"
 389            << "\\use_geometry " << h_use_geometry << "\n"
 390            << "\\use_amsmath " << h_use_amsmath << "\n"
 391            << "\\use_natbib " << h_use_natbib << "\n"
 392            << "\\use_numerical_citations " << h_use_numerical_citations << "\n"
 393            << "\\paperorientation " << h_paperorientation << "\n"
 394            << "\\secnumdepth " << h_secnumdepth << "\n"
 395            << "\\tocdepth " << h_tocdepth << "\n"
 396            << "\\paragraph_separation " << h_paragraph_separation << "\n"
 397            << "\\defskip " << h_defskip << "\n"
 398            << "\\quotes_language " << h_quotes_language << "\n"
 399            << "\\quotes_times " << h_quotes_times << "\n"
 400            << "\\papercolumns " << h_papercolumns << "\n"
 401            << "\\papersides " << h_papersides << "\n"
 402            << "\\paperpagestyle " << h_paperpagestyle << "\n"
 403            << "\\tracking_changes " << h_tracking_changes << "\n";
 404 }
 405
 406
 407 void parse(Parser & p, ostream & os, unsigned flags, mode_type mode)
 408 {
 409         while (p.good()) {
 410                 Token const & t = p.getToken();
 411
 412 #ifdef FILEDEBUG
 413                 cerr << "t: " << t << " flags: " << flags << "\n";
 414                 //cell->dump();
 415 #endif
 416
 417                 if (flags & FLAG_ITEM) {
 418                         if (t.cat() == catSpace)
 419                                 continue;
 420
 421                         flags &= ~FLAG_ITEM;
 422                         if (t.cat() == catBegin) {
 423                                 // skip the brace and collect everything to the next matching
 424                                 // closing brace
 425                                 flags |= FLAG_BRACE_LAST;
 426                                 continue;
 427                         }
 428
 429                         // handle only this single token, leave the loop if done
 430                         flags |= FLAG_LEAVE;
 431                 }
 432
 433
 434                 if (flags & FLAG_BRACED) {
 435                         if (t.cat() == catSpace)
 436                                 continue;
 437
 438                         if (t.cat() != catBegin) {
 439                                 p.error("opening brace expected");
 440                                 return;
 441                         }
 442
 443                         // skip the brace and collect everything to the next matching
 444                         // closing brace
 445                         flags = FLAG_BRACE_LAST;
 446                 }
 447
 448
 449                 if (flags & FLAG_OPTION) {
 450                         if (t.cat() == catOther && t.character() == '[') {
 451                                 parse(p, os, FLAG_BRACK_LAST, mode);
 452                         } else {
 453                                 // no option found, put back token and we are done
 454                                 p.putback();
 455                         }
 456                         return;
 457                 }
 458
 459                 //
 460                 // cat codes
 461                 //
 462                 if (t.cat() == catMath) {
 463                         if (mode == TEXT_MODE || mode == MATHTEXT_MODE) {
 464                                 // we are inside some text mode thingy, so opening new math is allowed
 465                                 if (mode == TEXT_MODE)
 466                                         begin_inset(os, "Formula ");
 467                                 Token const & n = p.getToken();
 468                                 if (n.cat() == catMath) {
 469                                         // TeX's $$...$$ syntax for displayed math
 470                                         os << "\\[";
 471                                         parse(p, os, FLAG_SIMPLE, MATH_MODE);
 472                                         os << "\\]";
 473                                         p.getToken(); // skip the second '$' token
 474                                 } else {
 475                                         // simple $...$  stuff
 476                                         p.putback();
 477                                         os << '$';
 478                                         parse(p, os, FLAG_SIMPLE, MATH_MODE);
 479                                         os << '$';
 480                                 }
 481                                 if (mode == TEXT_MODE)
 482                                         end_inset(os);
 483                         }
 484
 485                         else if (flags & FLAG_SIMPLE) {
 486                                 // this is the end of the formula
 487                                 return;
 488                         }
 489
 490                         else {
 491                                 cerr << "mode: " << mode << endl;
 492                                 p.error("something strange in the parser\n");
 493                                 break;
 494                         }
 495                 }
 496
 497                 else if (t.cat() == catLetter)
 498                         os << t.character();
 499
 500                 else if (t.cat() == catSpace)
 501                         os << t.character();
 502
 503                 else if (t.cat() == catNewline)
 504                         os << ' ';
 505
 506                 else if (t.cat() == catSuper)
 507                         os << t.character();
 508
 509                 else if (t.cat() == catSub)
 510                         os << t.character();
 511
 512                 else if (t.cat() == catParameter) {
 513                         Token const & n = p.getToken();
 514                         os << wrap("macroarg", string(1, n.character()));
 515                 }
 516
 517                 else if (t.cat() == catActive) {
 518                         if (t.character() == '~')
 519                                 os << (curr_env() == "lyxcode" ? ' ' : '~');
 520                         else
 521                                 os << t.asInput();
 522                 }
 523
 524                 else if (t.cat() == catBegin) {
 525                         if (mode == MATH_MODE)
 526                                 os << '{';
 527                         else
 528                                 handle_ert(os, "{");
 529                 }
 530
 531                 else if (t.cat() == catEnd) {
 532                         if (flags & FLAG_BRACE_LAST)
 533                                 return;
 534                         if (mode == MATH_MODE)
 535                                 os << '}';
 536                         else
 537                                 handle_ert(os, "}");
 538                 }
 539
 540                 else if (t.cat() == catAlign) {
 541                         if (mode == MATH_MODE)
 542                                 os << t.character();
 543                         else
 544                                 os << TAB;
 545                 }
 546
 547                 else if (t.cs() == "tabularnewline") {
 548                         if (mode == MATH_MODE)
 549                                 os << t.asInput();
 550                         else
 551                                 os << LINE;
 552                 }
 553
 554                 else if (t.cs() == "\\" && mode == MATH_MODE)
 555                         os << t.asInput();
 556
 557                 else if (t.cs() == "\\" && curr_env() == "tabular")
 558                         os << LINE;
 559
 560                 else if (t.character() == ']' && (flags & FLAG_BRACK_LAST)) {
 561                         //cerr << "finished reading option\n";
 562                         return;
 563                 }
 564
 565                 else if (t.cat() == catOther)
 566                         os << string(1, t.character());
 567
 568                 else if (t.cat() == catComment) {
 569                         string s;
 570                         while (p.good()) {
 571                                 Token const & t = p.getToken();
 572                                 if (t.cat() == catNewline)
 573                                         break;
 574                                 s += t.asString();
 575                         }
 576                         //os << wrap("comment", s);
 577                         p.skipSpaces();
 578                 }
 579
 580                 //
 581                 // control sequences
 582                 //
 583
 584                 else if (t.cs() == "lyxlock")
 585                         ; // ignored
 586
 587                 else if (t.cs() == "newcommand" || t.cs() == "providecommand") {
 588                         string const name = p.verbatimItem();
 589                         string const opts = p.getArg('[', ']');
 590                         string const body = p.verbatimItem();
 591                         // only non-lyxspecific stuff
 592                         if (name != "\\noun " && name != "\\tabularnewline ") {
 593                                 ostream & out = in_preamble ? h_preamble : os;
 594                                 if (!in_preamble)
 595                                         begin_inset(os, "FormulaMacro\n");
 596                                 out << "\\" << t.cs() << "{" << name << "}";
 597                                 if (opts.size())
 598                                         out << "[" << opts << "]";
 599                                 out << "{" << body << "}";
 600                                 if (!in_preamble)
 601                                         end_inset(os);
 602                         }
 603                 }
 604
 605                 else if (t.cs() == "(") {
 606                         begin_inset(os, "Formula");
 607                         os << " \\(";
 608                         parse(p, os, FLAG_SIMPLE2, MATH_MODE);
 609                         os << "\\)";
 610                         end_inset(os);
 611                 }
 612
 613                 else if (t.cs() == "[") {
 614                         begin_inset(os, "Formula");
 615                         os << " \\[";
 616                         parse(p, os, FLAG_EQUATION, MATH_MODE);
 617                         os << "\\]";
 618                         end_inset(os);
 619                 }
 620
 621                 else if (t.cs() == "protect")
 622                         // ignore \\protect, will hopefully be re-added during output
 623                         ;
 624
 625                 else if (t.cs() == "begin") {
 626                         string const name = p.getArg('{', '}');
 627                         active_environments.push(name);
 628                         if (name == "document") {
 629                                 end_preamble(os);
 630                                 parse(p, os, FLAG_END, mode);
 631                         } else if (name == "abstract") {
 632                                 handle_par(os);
 633                                 parse(p, os, FLAG_END, mode);
 634                         } else if (is_math_env(name)) {
 635                                 begin_inset(os, "Formula ");
 636                                 os << "\\begin{" << name << "}";
 637                                 parse(p, os, FLAG_END, MATH_MODE);
 638                                 os << "\\end{" << name << "}";
 639                                 end_inset(os);
 640                         } else if (name == "tabular") {
 641                                 handle_tabular(p, os, mode);
 642                         } else if (name == "table") {
 643                                 begin_inset(os, "Float table\n");
 644                                 os << "wide false\n"
 645                                    << "collapsed false\n"
 646                                    << "\n"
 647                                    << "\\layout Standard\n";
 648                                 parse(p, os, FLAG_END, mode);
 649                                 end_inset(os);
 650                         } else if (name == "thebibliography") {
 651                                 p.verbatimItem(); // swallow next arg
 652                                 parse(p, os, FLAG_END, mode);
 653                                 os << "\n\\layout Standard\n\n";
 654                         } else if (mode == MATH_MODE) {
 655                                 os << "\\begin{" << name << "}";
 656                                 parse(p, os, FLAG_END, mode);
 657                                 os << "\\end{" << name << "}";
 658                         } else {
 659                                 parse(p, os, FLAG_END, mode);
 660                         }
 661                 }
 662
 663                 else if (t.cs() == "end") {
 664                         if (flags & FLAG_END) {
 665                                 // eat environment name
 666                                 string const name = p.getArg('{', '}');
 667                                 if (name != curr_env())
 668                                         p.error("\\end{" + name + "} does not match \\begin{"
 669                                                 + curr_env() + "}");
 670                                 active_environments.pop();
 671                                 return;
 672                         }
 673                         p.error("found 'end' unexpectedly");
 674                 }
 675
 676
 677                 else if (t.cs() == "item")
 678                         handle_par(os);
 679
 680                 else if (t.cs() == ")") {
 681                         if (flags & FLAG_SIMPLE2)
 682                                 return;
 683                         p.error("found '\\)' unexpectedly");
 684                 }
 685
 686                 else if (t.cs() == "]") {
 687                         if (flags & FLAG_EQUATION)
 688                                 return;
 689                         p.error("found '\\]' unexpectedly");
 690                 }
 691
 692                 else if (t.cs() == "documentclass") {
 693                         vector<string> opts;
 694                         split(p.getArg('[', ']'), opts, ',');
 695                         handle_opt(opts, known_languages, h_language);
 696                         handle_opt(opts, known_fontsizes, h_paperfontsize);
 697                         h_quotes_language = h_language;
 698                         h_options = join(opts, ',');
 699                         h_textclass = p.getArg('{', '}');
 700                 }
 701
 702                 else if (t.cs() == "usepackage") {
 703                         string const options = p.getArg('[', ']');
 704                         string const name = p.getArg('{', '}');
 705                         if (options.empty() && name.find(',')) {
 706                                 vector<string> vecnames;
 707                                 split(name, vecnames, ',');
 708                                 vector<string>::const_iterator it  = vecnames.begin();
 709                                 vector<string>::const_iterator end = vecnames.end();
 710                                 for (; it != end; ++it)
 711                                         handle_package(trim(*it), string());
 712                         } else {
 713                                 handle_package(name, options);
 714                         }
 715                 }
 716
 717                 else if (t.cs() == "newenvironment") {
 718                         string const name = p.getArg('{', '}');
 719                         p.skipSpaces();
 720                         string const begin = p.verbatimItem();
 721                         p.skipSpaces();
 722                         string const end = p.verbatimItem();
 723                         // ignore out mess
 724                         if (name != "lyxcode")
 725                                 os << wrap("newenvironment", begin + end);
 726                 }
 727
 728                 else if (t.cs() == "def") {
 729                         string name = p.getToken().cs();
 730                         while (p.nextToken().cat() != catBegin)
 731                                 name += p.getToken().asString();
 732                         handle_ert(os, "\\def\\" + name + '{' + p.verbatimItem() + '}');
 733                 }
 734
 735                 else if (t.cs() == "setcounter") {
 736                         string const name = p.getArg('{', '}');
 737                         string const content = p.getArg('{', '}');
 738                         if (name == "secnumdepth")
 739                                 h_secnumdepth = content;
 740                         else if (name == "tocdepth")
 741                                 h_tocdepth = content;
 742                         else
 743                                 h_preamble << "\\setcounter{" << name << "}{" << content << "}\n";
 744                 }
 745
 746                 else if (t.cs() == "setlength") {
 747                         string const name = p.getToken().cs();
 748                         string const content = p.getArg('{', '}');
 749                         if (name == "parskip")
 750                                 h_paragraph_separation = "skip";
 751                         else if (name == "parindent")
 752                                 h_paragraph_separation = "skip";
 753                         else
 754                                 h_preamble << "\\setlength{" << name << "}{" << content << "}\n";
 755                 }
 756
 757                 else if (t.cs() == "par")
 758                         handle_par(os);
 759
 760                 else if (is_known(t.cs(), known_headings)) {
 761                         string name = t.cs();
 762                         if (p.nextToken().asInput() == "*") {
 763                                 p.getToken();
 764                                 name += "*";
 765                         }
 766                         os << "\\layout " << cap(name) << "\n\n";
 767                         parse(p, os, FLAG_ITEM, mode);
 768                 }
 769
 770                 else if (t.cs() == "makeindex" || t.cs() == "maketitle")
 771                         ; // swallow this
 772
 773                 else if (t.cs() == "tableofcontents")
 774                         p.verbatimItem(); // swallow this
 775
 776                 else if (t.cs() == "multicolumn" && mode == TEXT_MODE) {
 777                         // brutish...
 778                         parse(p, os, FLAG_ITEM, mode);
 779                         os << MULT;
 780                         parse(p, os, FLAG_ITEM, mode);
 781                         os << MULT;
 782                         parse(p, os, FLAG_ITEM, mode);
 783                 }
 784
 785                 else if (t.cs() == "textrm") {
 786                         os << '\\' << t.cs() << '{';
 787                         parse(p, os, FLAG_ITEM, MATHTEXT_MODE);
 788                         os << '}';
 789                 }
 790
 791                 else if ((t.cs() == "emph" || t.cs() == "noun") && mode == TEXT_MODE) {
 792                         os << "\n\\" << t.cs() << " on\n";
 793                         parse(p, os, FLAG_ITEM, mode);
 794                         os << "\n\\" << t.cs() << " default\n";
 795                 }
 796
 797                 else if (is_known(t.cs(), known_latex_commands) && mode == TEXT_MODE) {
 798                         begin_inset(os, "LatexCommand ");
 799                         os << '\\' << t.cs() << '{';
 800                         parse(p, os, FLAG_ITEM, TEXT_MODE);
 801                         os << '}';
 802                         end_inset(os);
 803                 }
 804
 805                 else if (t.cs() == "bibitem") {
 806                         os << "\n\\layout Bibliography\n\\bibitem ";
 807                         string opt = p.getArg('[',']');
 808                         if (opt.size())
 809                                 os << '[' << opt << ']';
 810                         os << '{' << p.getArg('{','}') << '}' << "\n\n";
 811                 }
 812
 813                 else if (char const ** where = is_known(t.cs(), known_quotes)) {
 814                         begin_inset(os, "Quotes ");
 815                         os << known_coded_quotes[where - known_quotes];
 816                         end_inset(os);
 817                 }
 818
 819                 else if (t.cs() == "textasciitilde")
 820                         os << '~';
 821
 822                 else if (t.cs() == "_" && mode == TEXT_MODE)
 823                         os << '_';
 824
 825                 else if (t.cs() == "&" && mode == TEXT_MODE)
 826                         os << '&';
 827
 828                 else if (t.cs() == "pagestyle" && in_preamble)
 829                         h_paperpagestyle == p.getArg('{','}');
 830
 831                 else {
 832                         if (mode == MATH_MODE)
 833                                 os << t.asInput();
 834                         else if (in_preamble)
 835                                 h_preamble << t.asInput();
 836                         else {
 837                                 // heuristic: read up to next non-nested space
 838                                 /*
 839                                 string s = t.asInput();
 840                                 string z = p.verbatimItem();
 841                                 while (p.good() && z != " " && z.size()) {
 842                                         //cerr << "read: " << z << endl;
 843                                         s += z;
 844                                         z = p.verbatimItem();
 845                                 }
 846                                 cerr << "found ERT: " << s << endl;
 847                                 handle_ert(os, s + ' ');
 848                                 */
 849                                 handle_ert(os, t.asInput() + ' ');
 850                         }
 851                 }
 852
 853                 if (flags & FLAG_LEAVE) {
 854                         flags &= ~FLAG_LEAVE;
 855                         break;
 856                 }
 857         }
 858 }
 859
 860
 861
 862 } // anonymous namespace
 863
 864
 865 int main(int argc, char * argv[])
 866 {
 867         if (argc <= 1) {
 868                 cerr << "Usage: " << argv[0] << " <infile.tex>" << endl;
 869                 return 2;
 870         }
 871
 872         ifstream is(argv[1]);
 873         Parser p(is);
 874         parse(p, cout, 0, TEXT_MODE);
 875         cout << "\n\\the_end";
 876
 877         return 0;
 878 }
 879
 880 // }])