src/tex2lyx/text.C

   1 /**
   2  * \file tex2lyx/text.C
   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 Jean-Marc Lasgouttes
   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 #include "context.h"
  18 #include "FloatList.h"
  19 #include "lengthcommon.h"
  20 #include "support/lstrings.h"
  21 #include "support/tostr.h"
  22 #include "support/filetools.h"
  23
  24 #include <iostream>
  25 #include <map>
  26 #include <sstream>
  27 #include <vector>
  28
  29 using lyx::support::rtrim;
  30 using lyx::support::suffixIs;
  31 using lyx::support::contains;
  32
  33 using std::cerr;
  34 using std::endl;
  35
  36 using std::map;
  37 using std::ostream;
  38 using std::ostringstream;
  39 using std::istringstream;
  40 using std::string;
  41 using std::vector;
  42
  43
  44 // thin wrapper around parse_text using a string
  45 string parse_text(Parser & p, unsigned flags, const bool outer,
  46                   Context & context)
  47 {
  48         ostringstream os;
  49         parse_text(p, os, flags, outer, context);
  50         return os.str();
  51 }
  52
  53 // parses a subdocument, usually useful in insets (whence the name)
  54 void parse_text_in_inset(Parser & p, ostream & os, unsigned flags, bool outer,
  55                 Context & context)
  56 {
  57         Context newcontext(true, context.textclass);
  58         parse_text(p, os, flags, outer, newcontext);
  59         newcontext.check_end_layout(os);
  60 }
  61
  62
  63 // parses a paragraph snippet, useful for example for \emph{...}
  64 void parse_text_snippet(Parser & p, ostream & os, unsigned flags, bool outer,
  65                 Context & context)
  66 {
  67         Context newcontext(false, context.textclass);
  68         parse_text(p, os, flags, outer, newcontext);
  69         // should not be needed
  70         newcontext.check_end_layout(os);
  71 }
  72
  73
  74 namespace {
  75
  76 char const * known_latex_commands[] = { "ref", "cite", "label", "index",
  77 "printindex", "pageref", "url", "vref", "vpageref", "prettyref", "eqref", 0 };
  78
  79 // LaTeX names for quotes
  80 char const * known_quotes[] = { "glqq", "grqq", "quotedblbase",
  81 "textquotedblleft", "quotesinglbase", "guilsinglleft", "guilsinglright", 0};
  82
  83 // the same as known_quotes with .lyx names
  84 char const * known_coded_quotes[] = { "gld", "grd", "gld",
  85 "grd", "gls", "fls", "frd", 0};
  86
  87 char const * known_sizes[] = { "tiny", "scriptsize", "footnotesize",
  88 "small", "normalsize", "large", "Large", "LARGE", "huge", "Huge", 0};
  89
  90 char const * known_coded_sizes[] = { "tiny", "scriptsize", "footnotesize",
  91 "small", "normal", "large", "larger", "largest",  "huge", "giant", 0};
  92
  93 // splits "x=z, y=b" into a map
  94 map<string, string> split_map(string const & s)
  95 {
  96         map<string, string> res;
  97         vector<string> v;
  98         split(s, v);
  99         for (size_t i = 0; i < v.size(); ++i) {
 100                 size_t const pos   = v[i].find('=');
 101                 string const index = v[i].substr(0, pos);
 102                 string const value = v[i].substr(pos + 1, string::npos);
 103                 res[trim(index)] = trim(value);
 104         }
 105         return res;
 106 }
 107
 108
 109 /*!
 110  * Split a LaTeX length into value and unit.
 111  * The latter can be a real unit like "pt", or a latex length variable
 112  * like "\textwidth". The unit may contain additional stuff like glue
 113  * lengths, but we don't care, because such lengths are ERT anyway.
 114  * \return true if \param value and \param unit are valid.
 115  */
 116 bool splitLatexLength(string const & len, string & value, string & unit)
 117 {
 118         if (len.empty())
 119                 return false;
 120         const string::size_type i = len.find_first_not_of(" -+0123456789.,");
 121         //'4,5' is a valid LaTeX length number. Change it to '4.5'
 122         string const length = lyx::support::subst(len, ',', '.');
 123         if (i == string::npos)
 124                 return false;
 125         if (i == 0) {
 126                 if (len[0] == '\\') {
 127                         // We had something like \textwidth without a factor
 128                         value = "1.0";
 129                 } else {
 130                         return false;
 131                 }
 132         } else {
 133                 value = trim(string(length, 0, i));
 134         }
 135         if (value == "-")
 136                 value = "-1.0";
 137         // 'cM' is a valid LaTeX length unit. Change it to 'cm'
 138         if (contains(len, '\\'))
 139                 unit = trim(string(len, i));
 140         else
 141                 unit = lyx::support::lowercase(trim(string(len, i)));
 142         return true;
 143 }
 144
 145
 146 // A simple function to translate a latex length to something lyx can
 147 // understand. Not perfect, but rather best-effort.
 148 bool translate_len(string const & length, string & valstring, string & unit)
 149 {
 150         if (!splitLatexLength(length, valstring, unit))
 151                 return false;
 152         // LyX uses percent values
 153         double value;
 154         istringstream iss(valstring);
 155         iss >> value;
 156         value *= 100;
 157         ostringstream oss;
 158         oss << value;
 159         string const percentval = oss.str();
 160         // a normal length
 161         if (unit.empty() || unit[0] != '\\')
 162                 return true;
 163         string::size_type const i = unit.find(' ');
 164         string const endlen = (i == string::npos) ? string() : string(unit, i);
 165         if (unit == "\\textwidth") {
 166                 valstring = percentval;
 167                 unit = "text%" + endlen;
 168         } else if (unit == "\\columnwidth") {
 169                 valstring = percentval;
 170                 unit = "col%" + endlen;
 171         } else if (unit == "\\paperwidth") {
 172                 valstring = percentval;
 173                 unit = "page%" + endlen;
 174         } else if (unit == "\\linewidth") {
 175                 valstring = percentval;
 176                 unit = "line%" + endlen;
 177         } else if (unit == "\\paperheight") {
 178                 valstring = percentval;
 179                 unit = "pheight%" + endlen;
 180         } else if (unit == "\\textheight") {
 181                 valstring = percentval;
 182                 unit = "theight%" + endlen;
 183         }
 184         return true;
 185 }
 186
 187
 188 string translate_len(string const & length)
 189 {
 190         string unit;
 191         string value;
 192         if (translate_len(length, value, unit))
 193                 return value + unit;
 194         // If the input is invalid, return what we have.
 195         return length;
 196 }
 197
 198
 199 /*!
 200  * Translates a LaTeX length into \param value, \param unit and
 201  * \param special parts suitable for a box inset.
 202  * The difference from translate_len() is that a box inset knows about
 203  * some special "units" that are stored in \param special.
 204  */
 205 void translate_box_len(string const & length, string & value, string & unit, string & special)
 206 {
 207         if (translate_len(length, value, unit)) {
 208                 if (unit == "\\height" || unit == "\\depth" ||
 209                     unit == "\\totalheight" || unit == "\\width") {
 210                         special = unit.substr(1);
 211                         // The unit is not used, but LyX requires a dummy setting
 212                         unit = "in";
 213                 } else
 214                         special = "none";
 215         } else {
 216                 value.clear();
 217                 unit = length;
 218                 special = "none";
 219         }
 220 }
 221
 222
 223 void begin_inset(ostream & os, string const & name)
 224 {
 225         os << "\n\\begin_inset " << name;
 226 }
 227
 228
 229 void end_inset(ostream & os)
 230 {
 231         os << "\n\\end_inset \n\n";
 232 }
 233
 234
 235 void skip_braces(Parser & p)
 236 {
 237         if (p.next_token().cat() != catBegin)
 238                 return;
 239         p.get_token();
 240         if (p.next_token().cat() == catEnd) {
 241                 p.get_token();
 242                 return;
 243         }
 244         p.putback();
 245 }
 246
 247
 248 void handle_ert(ostream & os, string const & s, Context & context, bool check_layout = true)
 249 {
 250         if (check_layout) {
 251                 // We must have a valid layout before outputting the ERT inset.
 252                 context.check_layout(os);
 253         }
 254         Context newcontext(true, context.textclass);
 255         begin_inset(os, "ERT");
 256         os << "\nstatus collapsed\n";
 257         newcontext.check_layout(os);
 258         for (string::const_iterator it = s.begin(), et = s.end(); it != et; ++it) {
 259                 if (*it == '\\')
 260                         os << "\n\\backslash \n";
 261                 else
 262                         os << *it;
 263         }
 264         newcontext.check_end_layout(os);
 265         end_inset(os);
 266 }
 267
 268
 269 void handle_comment(ostream & os, string const & s, Context & context)
 270 {
 271         // TODO: Handle this better
 272         Context newcontext(true, context.textclass);
 273         begin_inset(os, "ERT");
 274         os << "\nstatus collapsed\n";
 275         newcontext.check_layout(os);
 276         for (string::const_iterator it = s.begin(), et = s.end(); it != et; ++it) {
 277                 if (*it == '\\')
 278                         os << "\n\\backslash \n";
 279                 else
 280                         os << *it;
 281         }
 282         // make sure that our comment is the last thing on the line
 283         os << "\n\\newline";
 284         newcontext.check_end_layout(os);
 285         end_inset(os);
 286 }
 287
 288
 289 class isLayout : public std::unary_function<LyXLayout_ptr, bool> {
 290 public:
 291         isLayout(string const name) : name_(name) {}
 292         bool operator()(LyXLayout_ptr const & ptr) const {
 293                 return ptr->latexname() == name_;
 294         }
 295 private:
 296         string const name_;
 297 };
 298
 299
 300 LyXLayout_ptr findLayout(LyXTextClass const & textclass,
 301                          string const & name)
 302 {
 303         LyXTextClass::const_iterator beg  = textclass.begin();
 304         LyXTextClass::const_iterator end = textclass.end();
 305
 306         LyXTextClass::const_iterator
 307                 it = std::find_if(beg, end, isLayout(name));
 308
 309         return (it == end) ? LyXLayout_ptr() : *it;
 310 }
 311
 312
 313 void output_command_layout(ostream & os, Parser & p, bool outer,
 314                            Context & parent_context,
 315                            LyXLayout_ptr newlayout)
 316 {
 317         parent_context.check_end_layout(os);
 318         Context context(true, parent_context.textclass, newlayout,
 319                         parent_context.layout);
 320         context.check_deeper(os);
 321         context.check_layout(os);
 322         if (context.layout->optionalargs > 0) {
 323                 p.skip_spaces();
 324                 if (p.next_token().character() == '[') {
 325                         p.get_token(); // eat '['
 326                         begin_inset(os, "OptArg\n");
 327                         os << "status collapsed\n\n";
 328                         parse_text_in_inset(p, os, FLAG_BRACK_LAST, outer, context);
 329                         end_inset(os);
 330                 }
 331         }
 332         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
 333         context.check_end_layout(os);
 334         context.check_end_deeper(os);
 335         // We don't need really a new paragraph, but
 336         // we must make sure that the next item gets a \begin_layout.
 337         parent_context.new_paragraph(os);
 338 }
 339
 340
 341 /*!
 342  * Output a space if necessary.
 343  * This function gets called for every whitespace token.
 344  *
 345  * We have three cases here:
 346  * 1. A space must be suppressed. Example: The lyxcode case below
 347  * 2. A space may be suppressed. Example: Spaces before "\par"
 348  * 3. A space must not be suppressed. Example: A space between two words
 349  *
 350  * We currently handle only 1. and 3 and from 2. only the case of
 351  * spaces before newlines as a side effect.
 352  *
 353  * 2. could be used to suppress as many spaces as possible. This has two effects:
 354  * - Reimporting LyX generated LaTeX files changes almost no whitespace
 355  * - Superflous whitespace from non LyX generated LaTeX files is removed.
 356  * The drawback is that the logic inside the function becomes
 357  * complicated, and that is the reason why it is not implemented.
 358  */
 359 void check_space(Parser const & p, ostream & os, Context & context)
 360 {
 361         Token const next = p.next_token();
 362         Token const curr = p.curr_token();
 363         // A space before a single newline and vice versa must be ignored
 364         // LyX emits a newline before \end{lyxcode}.
 365         // This newline must be ignored,
 366         // otherwise LyX will add an additional protected space.
 367         if (next.cat() == catSpace ||
 368             next.cat() == catNewline ||
 369             (next.cs() == "end" && context.layout->free_spacing && curr.cat() == catNewline)) {
 370                 return;
 371         }
 372         context.check_layout(os);
 373         os << ' ';
 374 }
 375
 376
 377 /*!
 378  * Check wether \param command is a known command. If yes,
 379  * handle the command with all arguments.
 380  * \return true if the command was parsed, false otherwise.
 381  */
 382 bool parse_command(string const & command, Parser & p, ostream & os,
 383                    bool outer, Context & context)
 384 {
 385         if (known_commands.find(command) != known_commands.end()) {
 386                 vector<ArgumentType> const & template_arguments = known_commands[command];
 387                 string ert = command;
 388                 size_t no_arguments = template_arguments.size();
 389                 for (size_t i = 0; i < no_arguments; ++i) {
 390                         switch (template_arguments[i]) {
 391                         case required:
 392                                 // This argument contains regular LaTeX
 393                                 handle_ert(os, ert + '{', context);
 394                                 parse_text(p, os, FLAG_ITEM, outer, context);
 395                                 ert = "}";
 396                                 break;
 397                         case verbatim:
 398                                 // This argument may contain special characters
 399                                 ert += '{' + p.verbatim_item() + '}';
 400                                 break;
 401                         case optional:
 402                                 ert += p.getOpt();
 403                                 break;
 404                         }
 405                 }
 406                 handle_ert(os, ert, context);
 407                 return true;
 408         }
 409         return false;
 410 }
 411
 412
 413 /// Parses a minipage or parbox
 414 void parse_box(Parser & p, ostream & os, unsigned flags, bool outer,
 415                Context & parent_context, bool use_parbox)
 416 {
 417         string position;
 418         string inner_pos;
 419         string height_value = "0";
 420         string height_unit = "pt";
 421         string height_special = "none";
 422         string latex_height;
 423         if (p.next_token().asInput() == "[") {
 424                 position = p.getArg('[', ']');
 425                 if (position != "t" && position != "c" && position != "b") {
 426                         position = "c";
 427                         cerr << "invalid position for minipage/parbox" << endl;
 428                 }
 429                 if (p.next_token().asInput() == "[") {
 430                         latex_height = p.getArg('[', ']');
 431                         translate_box_len(latex_height, height_value, height_unit, height_special);
 432
 433                         if (p.next_token().asInput() == "[") {
 434                                 inner_pos = p.getArg('[', ']');
 435                                 if (inner_pos != "c" && inner_pos != "t" &&
 436                                     inner_pos != "b" && inner_pos != "s") {
 437                                         inner_pos = position;
 438                                         cerr << "invalid inner_pos for minipage/parbox"
 439                                              << endl;
 440                                 }
 441                         }
 442                 }
 443         }
 444         string width_value;
 445         string width_unit;
 446         string const latex_width = p.verbatim_item();
 447         translate_len(latex_width, width_value, width_unit);
 448         if (contains(width_unit, '\\') || contains(height_unit, '\\')) {
 449                 // LyX can't handle length variables
 450                 ostringstream ss;
 451                 if (use_parbox)
 452                         ss << "\\parbox";
 453                 else
 454                         ss << "\\begin{minipage}";
 455                 if (!position.empty())
 456                         ss << '[' << position << ']';
 457                 if (!latex_height.empty())
 458                         ss << '[' << latex_height << ']';
 459                 if (!inner_pos.empty())
 460                         ss << '[' << inner_pos << ']';
 461                 ss << "{" << latex_width << "}";
 462                 if (use_parbox)
 463                         ss << '{';
 464                 handle_ert(os, ss.str(), parent_context);
 465                 parent_context.new_paragraph(os);
 466                 parse_text_in_inset(p, os, flags, outer, parent_context);
 467                 if (use_parbox)
 468                         handle_ert(os, "}", parent_context);
 469                 else
 470                         handle_ert(os, "\\end{minipage}", parent_context);
 471         } else {
 472                 // LyX does not like empty positions, so we have
 473                 // to set them to the LaTeX default values here.
 474                 if (position.empty())
 475                         position = "c";
 476                 if (inner_pos.empty())
 477                         inner_pos = position;
 478                 parent_context.check_layout(os);
 479                 begin_inset(os, "Box Frameless\n");
 480                 os << "position \"" << position << "\"\n";
 481                 os << "hor_pos \"c\"\n";
 482                 os << "has_inner_box 1\n";
 483                 os << "inner_pos \"" << inner_pos << "\"\n";
 484                 os << "use_parbox " << use_parbox << "\n";
 485                 os << "width \"" << width_value << width_unit << "\"\n";
 486                 os << "special \"none\"\n";
 487                 os << "height \"" << height_value << height_unit << "\"\n";
 488                 os << "height_special \"" << height_special << "\"\n";
 489                 os << "status open\n\n";
 490                 parse_text_in_inset(p, os, flags, outer, parent_context);
 491                 end_inset(os);
 492 #ifdef PRESERVE_LAYOUT
 493                 // lyx puts a % after the end of the minipage
 494                 if (p.next_token().cat() == catNewline && p.next_token().cs().size() > 1) {
 495                         // new paragraph
 496                         //handle_comment(os, "%dummy", parent_context);
 497                         p.get_token();
 498                         p.skip_spaces();
 499                         parent_context.new_paragraph(os);
 500                 }
 501                 else if (p.next_token().cat() == catSpace || p.next_token().cat() == catNewline) {
 502                         //handle_comment(os, "%dummy", parent_context);
 503                         p.get_token();
 504                         p.skip_spaces();
 505                         // We add a protected space if something real follows
 506                         if (p.good() && p.next_token().cat() != catComment) {
 507                                 os << "\\InsetSpace ~\n";
 508                         }
 509                 }
 510 #endif
 511         }
 512 }
 513
 514
 515 void parse_environment(Parser & p, ostream & os, bool outer,
 516                        Context & parent_context)
 517 {
 518         LyXLayout_ptr newlayout;
 519         string const name = p.getArg('{', '}');
 520         const bool is_starred = suffixIs(name, '*');
 521         string const unstarred_name = rtrim(name, "*");
 522         active_environments.push_back(name);
 523         p.skip_spaces();
 524
 525         if (is_math_env(name)) {
 526                 parent_context.check_layout(os);
 527                 begin_inset(os, "Formula ");
 528                 os << "\\begin{" << name << "}";
 529                 parse_math(p, os, FLAG_END, MATH_MODE);
 530                 os << "\\end{" << name << "}";
 531                 end_inset(os);
 532         }
 533
 534         else if (name == "tabular") {
 535                 parent_context.check_layout(os);
 536                 begin_inset(os, "Tabular ");
 537                 handle_tabular(p, os, parent_context);
 538                 end_inset(os);
 539         }
 540
 541         else if (parent_context.textclass.floats().typeExist(unstarred_name)) {
 542                 parent_context.check_layout(os);
 543                 begin_inset(os, "Float " + unstarred_name + "\n");
 544                 if (p.next_token().asInput() == "[") {
 545                         os << "placement " << p.getArg('[', ']') << '\n';
 546                 }
 547                 os << "wide " << tostr(is_starred)
 548                    << "\nstatus open\n\n";
 549                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
 550                 end_inset(os);
 551                 // We don't need really a new paragraph, but
 552                 // we must make sure that the next item gets a \begin_layout.
 553                 parent_context.new_paragraph(os);
 554         }
 555
 556         else if (name == "minipage")
 557                 parse_box(p, os, FLAG_END, outer, parent_context, false);
 558
 559         // Alignment settings
 560         else if (name == "center" || name == "flushleft" || name == "flushright" ||
 561                  name == "centering" || name == "raggedright" || name == "raggedleft") {
 562                 // We must begin a new paragraph if not already done
 563                 if (! parent_context.atParagraphStart()) {
 564                         parent_context.check_end_layout(os);
 565                         parent_context.new_paragraph(os);
 566                 }
 567                 if (name == "flushleft" || name == "raggedright")
 568                         parent_context.add_extra_stuff("\\align left ");
 569                 else if (name == "flushright" || name == "raggedleft")
 570                         parent_context.add_extra_stuff("\\align right ");
 571                 else
 572                         parent_context.add_extra_stuff("\\align center ");
 573                 parse_text(p, os, FLAG_END, outer, parent_context);
 574                 // Just in case the environment is empty ..
 575                 parent_context.extra_stuff.erase();
 576                 // We must begin a new paragraph to reset the alignment
 577                 parent_context.new_paragraph(os);
 578         }
 579
 580         // The single '=' is meant here.
 581         else if ((newlayout = findLayout(parent_context.textclass, name)).get() &&
 582                    newlayout->isEnvironment()) {
 583                 Context context(true, parent_context.textclass, newlayout,
 584                                 parent_context.layout);
 585                 parent_context.check_end_layout(os);
 586                 switch (context.layout->latextype) {
 587                 case  LATEX_LIST_ENVIRONMENT:
 588                         context.extra_stuff = "\\labelwidthstring "
 589                                 + p.verbatim_item() + '\n';
 590                         p.skip_spaces();
 591                         break;
 592                 case  LATEX_BIB_ENVIRONMENT:
 593                         p.verbatim_item(); // swallow next arg
 594                         p.skip_spaces();
 595                         break;
 596                 default:
 597                         break;
 598                 }
 599                 context.check_deeper(os);
 600                 parse_text(p, os, FLAG_END, outer, context);
 601                 context.check_end_layout(os);
 602                 context.check_end_deeper(os);
 603                 parent_context.new_paragraph(os);
 604         }
 605
 606         else if (name == "appendix") {
 607                 // This is no good latex style, but it works and is used in some documents...
 608                 parent_context.check_end_layout(os);
 609                 Context context(true, parent_context.textclass, parent_context.layout,
 610                                 parent_context.layout);
 611                 context.check_layout(os);
 612                 os << "\\start_of_appendix\n";
 613                 parse_text(p, os, FLAG_END, outer, context);
 614                 context.check_end_layout(os);
 615         }
 616
 617         else if (name == "comment") {
 618                 parent_context.check_layout(os);
 619                 begin_inset(os, "Note Comment\n");
 620                 os << "status open\n";
 621                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
 622                 end_inset(os);
 623         }
 624
 625         else if (name == "lyxgreyedout") {
 626                 parent_context.check_layout(os);
 627                 begin_inset(os, "Note Greyedout\n");
 628                 os << "status open\n";
 629                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
 630                 end_inset(os);
 631         }
 632
 633         else if (name == "tabbing") {
 634                 // We need to remember that we have to handle '\=' specially
 635                 handle_ert(os, "\\begin{" + name + "}", parent_context);
 636                 parse_text_snippet(p, os, FLAG_END | FLAG_TABBING, outer, parent_context);
 637                 handle_ert(os, "\\end{" + name + "}", parent_context);
 638         }
 639
 640         else {
 641                 handle_ert(os, "\\begin{" + name + "}", parent_context);
 642                 parse_text_snippet(p, os, FLAG_END, outer, parent_context);
 643                 handle_ert(os, "\\end{" + name + "}", parent_context);
 644         }
 645
 646         active_environments.pop_back();
 647         if (name != "math")
 648                 p.skip_spaces();
 649 }
 650
 651 } // anonymous namespace
 652
 653
 654
 655
 656 void parse_text(Parser & p, ostream & os, unsigned flags, bool outer,
 657                 Context & context)
 658 {
 659         LyXLayout_ptr newlayout;
 660         // Store the latest bibliographystyle (needed for bibtex inset)
 661         string bibliographystyle;
 662         while (p.good()) {
 663                 Token const & t = p.get_token();
 664
 665 #ifdef FILEDEBUG
 666                 cerr << "t: " << t << " flags: " << flags << "\n";
 667 #endif
 668
 669                 if (flags & FLAG_ITEM) {
 670                         if (t.cat() == catSpace)
 671                                 continue;
 672
 673                         flags &= ~FLAG_ITEM;
 674                         if (t.cat() == catBegin) {
 675                                 // skip the brace and collect everything to the next matching
 676                                 // closing brace
 677                                 flags |= FLAG_BRACE_LAST;
 678                                 continue;
 679                         }
 680
 681                         // handle only this single token, leave the loop if done
 682                         flags |= FLAG_LEAVE;
 683                 }
 684
 685                 if (t.character() == ']' && (flags & FLAG_BRACK_LAST))
 686                         return;
 687
 688                 //
 689                 // cat codes
 690                 //
 691                 if (t.cat() == catMath) {
 692                         // we are inside some text mode thingy, so opening new math is allowed
 693                         context.check_layout(os);
 694                         begin_inset(os, "Formula ");
 695                         Token const & n = p.get_token();
 696                         if (n.cat() == catMath && outer) {
 697                                 // TeX's $$...$$ syntax for displayed math
 698                                 os << "\\[";
 699                                 parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
 700                                 os << "\\]";
 701                                 p.get_token(); // skip the second '$' token
 702                         } else {
 703                                 // simple $...$  stuff
 704                                 p.putback();
 705                                 os << '$';
 706                                 parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
 707                                 os << '$';
 708                         }
 709                         end_inset(os);
 710                 }
 711
 712                 else if (t.cat() == catSuper || t.cat() == catSub)
 713                         cerr << "catcode " << t << " illegal in text mode\n";
 714
 715                 // Basic support for english quotes. This should be
 716                 // extended to other quotes, but is not so easy (a
 717                 // left english quote is the same as a right german
 718                 // quote...)
 719                 else if (t.asInput() == "`"
 720                          && p.next_token().asInput() == "`") {
 721                         context.check_layout(os);
 722                         begin_inset(os, "Quotes ");
 723                         os << "eld";
 724                         end_inset(os);
 725                         p.get_token();
 726                         skip_braces(p);
 727                 }
 728                 else if (t.asInput() == "'"
 729                          && p.next_token().asInput() == "'") {
 730                         context.check_layout(os);
 731                         begin_inset(os, "Quotes ");
 732                         os << "erd";
 733                         end_inset(os);
 734                         p.get_token();
 735                         skip_braces(p);
 736                 }
 737
 738                 else if (t.cat() == catSpace || (t.cat() == catNewline && t.cs().size() == 1))
 739                         check_space(p, os, context);
 740
 741                 else if (t.cat() == catLetter ||
 742                                t.cat() == catOther ||
 743                                t.cat() == catAlign ||
 744                                t.cat() == catParameter) {
 745                         context.check_layout(os);
 746                         os << t.character();
 747                 }
 748
 749                 else if (t.cat() == catNewline || (t.cat() == catEscape && t.cs() == "par")) {
 750                         p.skip_spaces();
 751                         context.new_paragraph(os);
 752                 }
 753
 754                 else if (t.cat() == catActive) {
 755                         context.check_layout(os);
 756                         if (t.character() == '~') {
 757                                 if (context.layout->free_spacing)
 758                                         os << ' ';
 759                                 else
 760                                         os << "\\InsetSpace ~\n";
 761                         } else
 762                                 os << t.character();
 763                 }
 764
 765                 else if (t.cat() == catBegin) {
 766                         // special handling of size changes
 767                         context.check_layout(os);
 768                         bool const is_size = is_known(p.next_token().cs(), known_sizes);
 769                         Token const prev = p.prev_token();
 770                         string const s = parse_text(p, FLAG_BRACE_LAST, outer, context);
 771                         if (s.empty() && (p.next_token().character() == '`' ||
 772                                           (prev.character() == '-' && p.next_token().character())))
 773                                 ; // ignore it in {}`` or -{}-
 774                         else if (is_size || s == "[" || s == "]" || s == "*")
 775                                 os << s;
 776                         else {
 777                                 handle_ert(os, "{", context, false);
 778                                 // s will end the current layout and begin a new one if necessary
 779                                 os << s;
 780                                 handle_ert(os, "}", context);
 781                         }
 782                 }
 783
 784                 else if (t.cat() == catEnd) {
 785                         if (flags & FLAG_BRACE_LAST) {
 786                                 return;
 787                         }
 788                         cerr << "stray '}' in text\n";
 789                         handle_ert(os, "}", context);
 790                 }
 791
 792                 else if (t.cat() == catComment) {
 793                         context.check_layout(os);
 794                         if (!t.cs().empty()) {
 795                                 handle_comment(os, '%' + t.cs(), context);
 796                                 if (p.next_token().cat() == catNewline) {
 797                                         // A newline after a comment line starts a new paragraph
 798                                         context.new_paragraph(os);
 799                                         p.skip_spaces();
 800                                 }
 801                         } else {
 802                                 // "%\n" combination
 803                                 p.skip_spaces();
 804                         }
 805                 }
 806
 807                 //
 808                 // control sequences
 809                 //
 810
 811                 else if (t.cs() == "(") {
 812                         context.check_layout(os);
 813                         begin_inset(os, "Formula");
 814                         os << " \\(";
 815                         parse_math(p, os, FLAG_SIMPLE2, MATH_MODE);
 816                         os << "\\)";
 817                         end_inset(os);
 818                 }
 819
 820                 else if (t.cs() == "[") {
 821                         context.check_layout(os);
 822                         begin_inset(os, "Formula");
 823                         os << " \\[";
 824                         parse_math(p, os, FLAG_EQUATION, MATH_MODE);
 825                         os << "\\]";
 826                         end_inset(os);
 827                 }
 828
 829                 else if (t.cs() == "begin")
 830                         parse_environment(p, os, outer, context);
 831
 832                 else if (t.cs() == "end") {
 833                         if (flags & FLAG_END) {
 834                                 // eat environment name
 835                                 string const name = p.getArg('{', '}');
 836                                 if (name != active_environment())
 837                                         cerr << "\\end{" + name + "} does not match \\begin{"
 838                                                 + active_environment() + "}\n";
 839                                 return;
 840                         }
 841                         p.error("found 'end' unexpectedly");
 842                 }
 843
 844                 else if (t.cs() == "item") {
 845                         p.skip_spaces();
 846                         string s;
 847                         bool optarg = false;
 848                         if (p.next_token().character() == '[') {
 849                                 p.get_token(); // eat '['
 850                                 Context newcontext(false, context.textclass);
 851                                 s = parse_text(p, FLAG_BRACK_LAST, outer, newcontext);
 852                                 optarg = true;
 853                         }
 854                         context.set_item();
 855                         context.check_layout(os);
 856                         if (optarg) {
 857                                 if (context.layout->labeltype != LABEL_MANUAL) {
 858                                         // lyx does not support \item[\mybullet] in itemize environments
 859                                         handle_ert(os, "[", context);
 860                                         os << s;
 861                                         handle_ert(os, "]", context);
 862                                 } else if (!s.empty()) {
 863                                         // The space is needed to separate the item from the rest of the sentence.
 864                                         os << s << ' ';
 865                                         p.skip_spaces();
 866                                 }
 867                         }
 868                 }
 869
 870                 else if (t.cs() == "bibitem") {
 871                         context.set_item();
 872                         context.check_layout(os);
 873                         os << "\\bibitem ";
 874                         os << p.getOpt();
 875                         os << '{' << p.verbatim_item() << '}' << "\n";
 876                 }
 877
 878                 else if (t.cs() == "def") {
 879                         p.skip_spaces();
 880                         context.check_layout(os);
 881                         string name = p.get_token().cs();
 882                         while (p.next_token().cat() != catBegin)
 883                                 name += p.get_token().asString();
 884                         handle_ert(os, "\\def\\" + name + '{' + p.verbatim_item() + '}', context);
 885                 }
 886
 887                 else if (t.cs() == "noindent") {
 888                         p.skip_spaces();
 889                         context.add_extra_stuff("\\noindent ");
 890                 }
 891
 892                 else if (t.cs() == "appendix") {
 893                         p.skip_spaces();
 894                         context.add_extra_stuff("\\start_of_appendix ");
 895                 }
 896
 897                 // Must attempt to parse "Section*" before "Section".
 898                 else if ((p.next_token().asInput() == "*") &&
 899                          // The single '=' is meant here.
 900                          (newlayout = findLayout(context.textclass,
 901                                                  t.cs() + '*')).get() &&
 902                          newlayout->isCommand()) {
 903                         p.get_token();
 904                         output_command_layout(os, p, outer, context, newlayout);
 905                         p.skip_spaces();
 906                 }
 907
 908                 // The single '=' is meant here.
 909                 else if ((newlayout = findLayout(context.textclass, t.cs())).get() &&
 910                          newlayout->isCommand()) {
 911                         output_command_layout(os, p, outer, context, newlayout);
 912                         p.skip_spaces();
 913                 }
 914
 915                 else if (t.cs() == "includegraphics") {
 916                         map<string, string> opts = split_map(p.getArg('[', ']'));
 917                         string name = p.verbatim_item();
 918
 919                         context.check_layout(os);
 920                         begin_inset(os, "Graphics ");
 921                         os << "\n\tfilename " << name << '\n';
 922                         if (opts.find("width") != opts.end())
 923                                 os << "\twidth "
 924                                    << translate_len(opts["width"]) << '\n';
 925                         if (opts.find("height") != opts.end())
 926                                 os << "\theight "
 927                                    << translate_len(opts["height"]) << '\n';
 928                         if (opts.find("scale") != opts.end()) {
 929                                 istringstream iss(opts["scale"]);
 930                                 double val;
 931                                 iss >> val;
 932                                 val = val*100;
 933                                 os << "\tscale " << val << '\n';
 934                         }
 935                         if (opts.find("angle") != opts.end())
 936                                 os << "\trotateAngle "
 937                                    << opts["angle"] << '\n';
 938                         if (opts.find("origin") != opts.end()) {
 939                                 ostringstream ss;
 940                                 string const opt = opts["origin"];
 941                                 if (opt.find('l') != string::npos) ss << "left";
 942                                 if (opt.find('r') != string::npos) ss << "right";
 943                                 if (opt.find('c') != string::npos) ss << "center";
 944                                 if (opt.find('t') != string::npos) ss << "Top";
 945                                 if (opt.find('b') != string::npos) ss << "Bottom";
 946                                 if (opt.find('B') != string::npos) ss << "Baseline";
 947                                 if (!ss.str().empty())
 948                                         os << "\trotateOrigin " << ss.str() << '\n';
 949                                 else
 950                                         cerr << "Warning: Ignoring unknown includegraphics origin argument '" << opt << "'\n";
 951                         }
 952                         if (opts.find("keepaspectratio") != opts.end())
 953                                 os << "\tkeepAspectRatio\n";
 954                         if (opts.find("clip") != opts.end())
 955                                 os << "\tclip\n";
 956                         if (opts.find("draft") != opts.end())
 957                                 os << "\tdraft\n";
 958                         if (opts.find("bb") != opts.end())
 959                                 os << "\tBoundingBox "
 960                                    << opts["bb"] << '\n';
 961                         int numberOfbbOptions = 0;
 962                         if (opts.find("bbllx") != opts.end())
 963                                 numberOfbbOptions++;
 964                         if (opts.find("bblly") != opts.end())
 965                                 numberOfbbOptions++;
 966                         if (opts.find("bburx") != opts.end())
 967                                 numberOfbbOptions++;
 968                         if (opts.find("bbury") != opts.end())
 969                                 numberOfbbOptions++;
 970                         if (numberOfbbOptions == 4)
 971                                 os << "\tBoundingBox "
 972                                    << opts["bbllx"] << opts["bblly"]
 973                                    << opts["bburx"] << opts["bbury"] << '\n';
 974                         else if (numberOfbbOptions > 0)
 975                                 cerr << "Warning: Ignoring incomplete includegraphics boundingbox arguments.\n";
 976                         numberOfbbOptions = 0;
 977                         if (opts.find("natwidth") != opts.end())
 978                                 numberOfbbOptions++;
 979                         if (opts.find("natheight") != opts.end())
 980                                 numberOfbbOptions++;
 981                         if (numberOfbbOptions == 2)
 982                                 os << "\tBoundingBox 0bp 0bp "
 983                                    << opts["natwidth"] << opts["natheight"] << '\n';
 984                         else if (numberOfbbOptions > 0)
 985                                 cerr << "Warning: Ignoring incomplete includegraphics boundingbox arguments.\n";
 986                         ostringstream special;
 987                         if (opts.find("hiresbb") != opts.end())
 988                                 special << "hiresbb,";
 989                         if (opts.find("trim") != opts.end())
 990                                 special << "trim,";
 991                         if (opts.find("viewport") != opts.end())
 992                                 special << "viewport=" << opts["viewport"] << ',';
 993                         if (opts.find("totalheight") != opts.end())
 994                                 special << "totalheight=" << opts["totalheight"] << ',';
 995                         if (opts.find("type") != opts.end())
 996                                 special << "type=" << opts["type"] << ',';
 997                         if (opts.find("ext") != opts.end())
 998                                 special << "ext=" << opts["ext"] << ',';
 999                         if (opts.find("read") != opts.end())
1000                                 special << "read=" << opts["read"] << ',';
1001                         if (opts.find("command") != opts.end())
1002                                 special << "command=" << opts["command"] << ',';
1003                         string s_special = special.str();
1004                         if (!s_special.empty()) {
1005                                 // We had special arguments. Remove the trailing ','.
1006                                 os << "\tspecial " << s_special.substr(0, s_special.size() - 1) << '\n';
1007                         }
1008                         // TODO: Handle the unknown settings better.
1009                         // Warn about invalid options.
1010                         // Check wether some option was given twice.
1011                         end_inset(os);
1012                 }
1013
1014                 else if (t.cs() == "footnote") {
1015                         p.skip_spaces();
1016                         context.check_layout(os);
1017                         begin_inset(os, "Foot\n");
1018                         os << "status collapsed\n\n";
1019                         parse_text_in_inset(p, os, FLAG_ITEM, false, context);
1020                         end_inset(os);
1021                 }
1022
1023                 else if (t.cs() == "marginpar") {
1024                         p.skip_spaces();
1025                         context.check_layout(os);
1026                         begin_inset(os, "Marginal\n");
1027                         os << "status collapsed\n\n";
1028                         parse_text_in_inset(p, os, FLAG_ITEM, false, context);
1029                         end_inset(os);
1030                 }
1031
1032                 else if (t.cs() == "ensuremath") {
1033                         p.skip_spaces();
1034                         context.check_layout(os);
1035                         Context newcontext(false, context.textclass);
1036                         string s = parse_text(p, FLAG_ITEM, false, newcontext);
1037                         if (s == "±" || s == "³" || s == "²" || s == "µ")
1038                                 os << s;
1039                         else
1040                                 handle_ert(os, "\\ensuremath{" + s + "}",
1041                                            context);
1042                 }
1043
1044                 else if (t.cs() == "hfill") {
1045                         context.check_layout(os);
1046                         os << "\n\\hfill\n";
1047                         skip_braces(p);
1048                         p.skip_spaces();
1049                 }
1050
1051                 else if (t.cs() == "makeindex" || t.cs() == "maketitle") {
1052                         p.skip_spaces();
1053                         skip_braces(p); // swallow this
1054                 }
1055
1056                 else if (t.cs() == "tableofcontents") {
1057                         p.skip_spaces();
1058                         context.check_layout(os);
1059                         begin_inset(os, "LatexCommand \\tableofcontents\n");
1060                         end_inset(os);
1061                         skip_braces(p); // swallow this
1062                 }
1063
1064                 else if (t.cs() == "listoffigures") {
1065                         p.skip_spaces();
1066                         context.check_layout(os);
1067                         begin_inset(os, "FloatList figure\n");
1068                         end_inset(os);
1069                         skip_braces(p); // swallow this
1070                 }
1071
1072                 else if (t.cs() == "listoftables") {
1073                         p.skip_spaces();
1074                         context.check_layout(os);
1075                         begin_inset(os, "FloatList table\n");
1076                         end_inset(os);
1077                         skip_braces(p); // swallow this
1078                 }
1079
1080                 else if (t.cs() == "listof") {
1081                         p.skip_spaces(true);
1082                         string const name = p.get_token().asString();
1083                         if (context.textclass.floats().typeExist(name)) {
1084                                 context.check_layout(os);
1085                                 begin_inset(os, "FloatList ");
1086                                 os << name << "\n";
1087                                 end_inset(os);
1088                                 p.get_token(); // swallow second arg
1089                         } else
1090                                 handle_ert(os, "\\listof{" + name + "}", context);
1091                 }
1092
1093                 else if (t.cs() == "textrm") {
1094                         context.check_layout(os);
1095                         os << "\n\\family roman \n";
1096                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
1097                         os << "\n\\family default \n";
1098                 }
1099
1100                 else if (t.cs() == "textsf") {
1101                         context.check_layout(os);
1102                         os << "\n\\family sans \n";
1103                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
1104                         os << "\n\\family default \n";
1105                 }
1106
1107                 else if (t.cs() == "textsl") {
1108                         context.check_layout(os);
1109                         os << "\n\\shape slanted \n";
1110                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
1111                         os << "\n\\shape default \n";
1112                 }
1113
1114                 else if (t.cs() == "texttt") {
1115                         context.check_layout(os);
1116                         os << "\n\\family typewriter \n";
1117                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
1118                         os << "\n\\family default \n";
1119                 }
1120
1121                 else if (t.cs() == "textit") {
1122                         context.check_layout(os);
1123                         os << "\n\\shape italic \n";
1124                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
1125                         os << "\n\\shape default \n";
1126                 }
1127
1128                 else if (t.cs() == "textsc") {
1129                         context.check_layout(os);
1130                         os << "\n\\noun on \n";
1131                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
1132                         os << "\n\\noun default \n";
1133                 }
1134
1135                 else if (t.cs() == "textbf") {
1136                         context.check_layout(os);
1137                         os << "\n\\series bold \n";
1138                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
1139                         os << "\n\\series default \n";
1140                 }
1141
1142                 else if (t.cs() == "underbar") {
1143                         context.check_layout(os);
1144                         os << "\n\\bar under \n";
1145                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
1146                         os << "\n\\bar default \n";
1147                 }
1148
1149                 else if (t.cs() == "emph" || t.cs() == "noun") {
1150                         context.check_layout(os);
1151                         os << "\n\\" << t.cs() << " on \n";
1152                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
1153                         os << "\n\\" << t.cs() << " default \n";
1154                 }
1155
1156                 else if (is_known(t.cs(), known_latex_commands)) {
1157                         context.check_layout(os);
1158                         begin_inset(os, "LatexCommand ");
1159                         os << '\\' << t.cs();
1160                         os << p.getOpt();
1161                         os << p.getOpt();
1162                         os << '{' << p.verbatim_item() << "}\n";
1163                         end_inset(os);
1164                 }
1165
1166                 else if (is_known(t.cs(), known_quotes)) {
1167                         char const ** where = is_known(t.cs(), known_quotes);
1168                         context.check_layout(os);
1169                         begin_inset(os, "Quotes ");
1170                         os << known_coded_quotes[where - known_quotes];
1171                         end_inset(os);
1172                         skip_braces(p);
1173                 }
1174
1175                 else if (is_known(t.cs(), known_sizes)) {
1176                         char const ** where = is_known(t.cs(), known_sizes);
1177                         context.check_layout(os);
1178                         os << "\n\\size " << known_coded_sizes[where - known_sizes] << "\n";
1179                         p.skip_spaces();
1180                 }
1181
1182                 else if (t.cs() == "LyX" || t.cs() == "TeX"
1183                          || t.cs() == "LaTeX") {
1184                         context.check_layout(os);
1185                         os << t.cs();
1186                         skip_braces(p); // eat {}
1187                 }
1188
1189                 else if (t.cs() == "LaTeXe") {
1190                         context.check_layout(os);
1191                         os << "LaTeX2e";
1192                         skip_braces(p); // eat {}
1193                 }
1194
1195                 else if (t.cs() == "ldots") {
1196                         context.check_layout(os);
1197                         skip_braces(p);
1198                         os << "\\SpecialChar \\ldots{}\n";
1199                 }
1200
1201                 else if (t.cs() == "lyxarrow") {
1202                         context.check_layout(os);
1203                         os << "\\SpecialChar \\menuseparator\n";
1204                         skip_braces(p);
1205                 }
1206
1207                 else if (t.cs() == "textcompwordmark") {
1208                         context.check_layout(os);
1209                         os << "\\SpecialChar \\textcompwordmark{}\n";
1210                         skip_braces(p);
1211                 }
1212
1213                 else if (t.cs() == "@" && p.next_token().asInput() == ".") {
1214                         context.check_layout(os);
1215                         os << "\\SpecialChar \\@.\n";
1216                         p.get_token();
1217                 }
1218
1219                 else if (t.cs() == "-") {
1220                         context.check_layout(os);
1221                         os << "\\SpecialChar \\-\n";
1222                 }
1223
1224                 else if (t.cs() == "textasciitilde") {
1225                         context.check_layout(os);
1226                         os << '~';
1227                         skip_braces(p);
1228                 }
1229
1230                 else if (t.cs() == "textasciicircum") {
1231                         context.check_layout(os);
1232                         os << '^';
1233                         skip_braces(p);
1234                 }
1235
1236                 else if (t.cs() == "textbackslash") {
1237                         context.check_layout(os);
1238                         os << "\n\\backslash \n";
1239                         skip_braces(p);
1240                 }
1241
1242                 else if (t.cs() == "_" || t.cs() == "&" || t.cs() == "#"
1243                             || t.cs() == "$" || t.cs() == "{" || t.cs() == "}"
1244                             || t.cs() == "%") {
1245                         context.check_layout(os);
1246                         os << t.cs();
1247                 }
1248
1249                 else if (t.cs() == "char") {
1250                         context.check_layout(os);
1251                         if (p.next_token().character() == '`') {
1252                                 p.get_token();
1253                                 if (p.next_token().cs() == "\"") {
1254                                         p.get_token();
1255                                         os << '"';
1256                                         skip_braces(p);
1257                                 } else {
1258                                         handle_ert(os, "\\char`", context);
1259                                 }
1260                         } else {
1261                                 handle_ert(os, "\\char", context);
1262                         }
1263                 }
1264
1265                 else if (t.cs() == "\"") {
1266                         context.check_layout(os);
1267                         string const name = p.verbatim_item();
1268                              if (name == "a") os << 'ä';
1269                         else if (name == "o") os << 'ö';
1270                         else if (name == "u") os << 'ü';
1271                         else if (name == "A") os << 'Ä';
1272                         else if (name == "O") os << 'Ö';
1273                         else if (name == "U") os << 'Ü';
1274                         else handle_ert(os, "\"{" + name + "}", context);
1275                 }
1276
1277                 // Problem: \= creates a tabstop inside the tabbing environment
1278                 // and else an accent. In the latter case we really would want
1279                 // \={o} instead of \= o.
1280                 else if (t.cs() == "=" && (flags & FLAG_TABBING))
1281                         handle_ert(os, t.asInput(), context);
1282
1283                 else if (t.cs() == "H" || t.cs() == "c" || t.cs() == "^" || t.cs() == "'"
1284                       || t.cs() == "~" || t.cs() == "." || t.cs() == "=") {
1285                         // we need the trim as the LyX parser chokes on such spaces
1286                         context.check_layout(os);
1287                         os << "\n\\i \\" << t.cs() << "{"
1288                            << trim(parse_text(p, FLAG_ITEM, outer, context), " ") << "}\n";
1289                 }
1290
1291                 else if (t.cs() == "ss") {
1292                         context.check_layout(os);
1293                         os << "ß";
1294                 }
1295
1296                 else if (t.cs() == "i" || t.cs() == "j") {
1297                         context.check_layout(os);
1298                         os << "\\" << t.cs() << ' ';
1299                 }
1300
1301                 else if (t.cs() == "\\") {
1302                         context.check_layout(os);
1303                         string const next = p.next_token().asInput();
1304                         if (next == "[")
1305                                 handle_ert(os, "\\\\" + p.getOpt(), context);
1306                         else if (next == "*") {
1307                                 p.get_token();
1308                                 handle_ert(os, "\\\\*" + p.getOpt(), context);
1309                         }
1310                         else {
1311                                 os << "\n\\newline \n";
1312                         }
1313                 }
1314
1315                 else if (t.cs() == "input" || t.cs() == "include"
1316                          || t.cs() == "verbatiminput") {
1317                         string name = '\\' + t.cs();
1318                         if (t.cs() == "verbatiminput"
1319                             && p.next_token().asInput() == "*")
1320                                 name += p.get_token().asInput();
1321                         context.check_layout(os);
1322                         begin_inset(os, "Include ");
1323                         string filename(p.getArg('{', '}'));
1324                         string lyxname(lyx::support::ChangeExtension(filename, ".lyx"));
1325                         if (tex2lyx(filename, lyxname)) {
1326                                 os << name << '{' << lyxname << "}\n";
1327                         } else {
1328                                 os << name << '{' << filename << "}\n";
1329                         }
1330                         os << "preview false\n";
1331                         end_inset(os);
1332                 }
1333
1334                 else if (t.cs() == "fancyhead") {
1335                         context.check_layout(os);
1336                         ostringstream ss;
1337                         ss << "\\fancyhead";
1338                         ss << p.getOpt();
1339                         ss << '{' << p.verbatim_item() << "}\n";
1340                         handle_ert(os, ss.str(), context);
1341                 }
1342
1343                 else if (t.cs() == "bibliographystyle") {
1344                         // store new bibliographystyle
1345                         bibliographystyle = p.verbatim_item();
1346                         // output new bibliographystyle.
1347                         // This is only necessary if used in some other macro than \bibliography.
1348                         handle_ert(os, "\\bibliographystyle{" + bibliographystyle + "}", context);
1349                 }
1350
1351                 else if (t.cs() == "bibliography") {
1352                         context.check_layout(os);
1353                         begin_inset(os, "LatexCommand ");
1354                         os << "\\bibtex";
1355                         // Do we have a bibliographystyle set?
1356                         if (!bibliographystyle.empty()) {
1357                                 os << '[' << bibliographystyle << ']';
1358                         }
1359                         os << '{' << p.verbatim_item() << "}\n";
1360                         end_inset(os);
1361                 }
1362
1363                 else if (t.cs() == "parbox")
1364                         parse_box(p, os, FLAG_ITEM, outer, context, true);
1365
1366                 else if (t.cs() == "smallskip" ||
1367                          t.cs() == "medskip" ||
1368                          t.cs() == "bigskip" ||
1369                          t.cs() == "vfill") {
1370                         context.check_layout(os);
1371                         begin_inset(os, "VSpace ");
1372                         os << t.cs();
1373                         end_inset(os);
1374                 }
1375
1376                 else if (t.cs() == "vspace") {
1377                         bool starred = false;
1378                         if (p.next_token().asInput() == "*") {
1379                                 p.get_token();
1380                                 starred = true;
1381                         }
1382                         string const length = p.verbatim_item();
1383                         string unit;
1384                         string valstring;
1385                         bool valid = splitLatexLength(length, valstring, unit);
1386                         bool known_vspace = false;
1387                         bool known_unit = false;
1388                         double value;
1389                         if (valid) {
1390                                 istringstream iss(valstring);
1391                                 iss >> value;
1392                                 if (value == 1.0) {
1393                                         if (unit == "\\smallskipamount") {
1394                                                 unit = "smallskip";
1395                                                 known_vspace = true;
1396                                         } else if (unit == "\\medskipamount") {
1397                                                 unit = "medskip";
1398                                                 known_vspace = true;
1399                                         } else if (unit == "\\bigskipamount") {
1400                                                 unit = "bigskip";
1401                                                 known_vspace = true;
1402                                         } else if (unit == "\\fill") {
1403                                                 unit = "vfill";
1404                                                 known_vspace = true;
1405                                         }
1406                                 }
1407                                 if (!known_vspace) {
1408                                         switch (unitFromString(unit)) {
1409                                         case LyXLength::SP:
1410                                         case LyXLength::PT:
1411                                         case LyXLength::BP:
1412                                         case LyXLength::DD:
1413                                         case LyXLength::MM:
1414                                         case LyXLength::PC:
1415                                         case LyXLength::CC:
1416                                         case LyXLength::CM:
1417                                         case LyXLength::IN:
1418                                         case LyXLength::EX:
1419                                         case LyXLength::EM:
1420                                         case LyXLength::MU:
1421                                                 known_unit = true;
1422                                                 break;
1423                                         default:
1424                                                 break;
1425                                         }
1426                                 }
1427                         }
1428
1429                         if (known_unit || known_vspace) {
1430                                 // Literal length or known variable
1431                                 context.check_layout(os);
1432                                 begin_inset(os, "VSpace ");
1433                                 if (known_unit)
1434                                         os << value;
1435                                 os << unit;
1436                                 if (starred)
1437                                         os << '*';
1438                                 end_inset(os);
1439                         } else {
1440                                 // LyX can't handle other length variables in Inset VSpace
1441                                 string name = t.asInput();
1442                                 if (starred)
1443                                         name += '*';
1444                                 if (valid) {
1445                                         if (value == 1.0)
1446                                                 handle_ert(os, name + '{' + unit + '}', context);
1447                                         else if (value == -1.0)
1448                                                 handle_ert(os, name + "{-" + unit + '}', context);
1449                                         else
1450                                                 handle_ert(os, name + '{' + valstring + unit + '}', context);
1451                                 } else
1452                                         handle_ert(os, name + '{' + length + '}', context);
1453                         }
1454                 }
1455
1456                 else {
1457                         //cerr << "#: " << t << " mode: " << mode << endl;
1458                         // heuristic: read up to next non-nested space
1459                         /*
1460                         string s = t.asInput();
1461                         string z = p.verbatim_item();
1462                         while (p.good() && z != " " && z.size()) {
1463                                 //cerr << "read: " << z << endl;
1464                                 s += z;
1465                                 z = p.verbatim_item();
1466                         }
1467                         cerr << "found ERT: " << s << endl;
1468                         handle_ert(os, s + ' ', context);
1469                         */
1470                         string name = t.asInput();
1471                         if (p.next_token().asInput() == "*") {
1472                                 // Starred commands like \vspace*{}
1473                                 p.get_token();                          // Eat '*'
1474                                 name += '*';
1475                         }
1476                         if (! parse_command(name, p, os, outer, context))
1477                                 handle_ert(os, name, context);
1478                 }
1479
1480                 if (flags & FLAG_LEAVE) {
1481                         flags &= ~FLAG_LEAVE;
1482                         break;
1483                 }
1484         }
1485 }
1486
1487
1488 // }])