src/tex2lyx/text.cpp

   1 /**
   2  * \file tex2lyx/text.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author André Pönitz
   7  * \author Jean-Marc Lasgouttes
   8  * \author Uwe Stöhr
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 // {[(
  14
  15 #include <config.h>
  16
  17 #include "tex2lyx.h"
  18
  19 #include "Context.h"
  20 #include "FloatList.h"
  21 #include "Layout.h"
  22 #include "Length.h"
  23
  24 #include "support/convert.h"
  25 #include "support/FileName.h"
  26 #include "support/filetools.h"
  27 #include "support/lstrings.h"
  28
  29 #include <boost/assert.hpp>
  30
  31 #include <algorithm>
  32 #include <iostream>
  33 #include <map>
  34 #include <sstream>
  35 #include <vector>
  36
  37 using namespace std;
  38 using namespace lyx::support;
  39
  40 namespace lyx {
  41
  42
  43 void parse_text_in_inset(Parser & p, ostream & os, unsigned flags, bool outer,
  44                 Context const & context)
  45 {
  46         Context newcontext(true, context.textclass);
  47         newcontext.font = context.font;
  48         parse_text(p, os, flags, outer, newcontext);
  49         newcontext.check_end_layout(os);
  50 }
  51
  52
  53 namespace {
  54
  55 /// parses a paragraph snippet, useful for example for \\emph{...}
  56 void parse_text_snippet(Parser & p, ostream & os, unsigned flags, bool outer,
  57                 Context & context)
  58 {
  59         Context newcontext(context);
  60         // Don't inherit the extra stuff
  61         newcontext.extra_stuff.clear();
  62         parse_text(p, os, flags, outer, newcontext);
  63         // Make sure that we don't create invalid .lyx files
  64         context.need_layout = newcontext.need_layout;
  65         context.need_end_layout = newcontext.need_end_layout;
  66 }
  67
  68
  69 /*!
  70  * Thin wrapper around parse_text_snippet() using a string.
  71  *
  72  * We completely ignore \c context.need_layout and \c context.need_end_layout,
  73  * because our return value is not used directly (otherwise the stream version
  74  * of parse_text_snippet() could be used). That means that the caller needs
  75  * to do layout management manually.
  76  * This is intended to parse text that does not create any layout changes.
  77  */
  78 string parse_text_snippet(Parser & p, unsigned flags, const bool outer,
  79                   Context & context)
  80 {
  81         Context newcontext(context);
  82         newcontext.need_layout = false;
  83         newcontext.need_end_layout = false;
  84         newcontext.new_layout_allowed = false;
  85         // Avoid warning by Context::~Context()
  86         newcontext.extra_stuff.clear();
  87         ostringstream os;
  88         parse_text_snippet(p, os, flags, outer, newcontext);
  89         return os.str();
  90 }
  91
  92
  93 char const * const known_latex_commands[] = { "ref", "cite", "nocite", "label",
  94  "index", "printindex", "pageref", "url", "vref", "vpageref", "prettyref",
  95  "eqref", 0 };
  96
  97 /*!
  98  * natbib commands.
  99  * We can't put these into known_latex_commands because the argument order
 100  * is reversed in lyx if there are 2 arguments.
 101  * The starred forms are also known.
 102  */
 103 char const * const known_natbib_commands[] = { "cite", "citet", "citep",
 104 "citealt", "citealp", "citeauthor", "citeyear", "citeyearpar",
 105 "citefullauthor", "Citet", "Citep", "Citealt", "Citealp", "Citeauthor", 0 };
 106
 107 /*!
 108  * jurabib commands.
 109  * We can't put these into known_latex_commands because the argument order
 110  * is reversed in lyx if there are 2 arguments.
 111  * No starred form other than "cite*" known.
 112  */
 113 char const * const known_jurabib_commands[] = { "cite", "citet", "citep",
 114 "citealt", "citealp", "citeauthor", "citeyear", "citeyearpar",
 115 // jurabib commands not (yet) supported by LyX:
 116 // "fullcite",
 117 // "footcite", "footcitet", "footcitep", "footcitealt", "footcitealp",
 118 // "footciteauthor", "footciteyear", "footciteyearpar",
 119 "citefield", "citetitle", "cite*", 0 };
 120
 121 /// LaTeX names for quotes
 122 char const * const known_quotes[] = { "dq", "guillemotleft", "flqq", "og",
 123 "guillemotright", "frqq", "fg", "glq", "glqq", "textquoteleft", "grq", "grqq",
 124 "quotedblbase", "textquotedblleft", "quotesinglbase", "textquoteright", "flq",
 125 "guilsinglleft", "frq", "guilsinglright", 0};
 126
 127 /// the same as known_quotes with .lyx names
 128 char const * const known_coded_quotes[] = { "prd", "ard", "ard", "ard",
 129 "ald", "ald", "ald", "gls", "gld", "els", "els", "grd",
 130 "gld", "grd", "gls", "ers", "fls",
 131 "fls", "frs", "frs", 0};
 132
 133 /// LaTeX names for font sizes
 134 char const * const known_sizes[] = { "tiny", "scriptsize", "footnotesize",
 135 "small", "normalsize", "large", "Large", "LARGE", "huge", "Huge", 0};
 136
 137 /// the same as known_sizes with .lyx names
 138 char const * const known_coded_sizes[] = { "default", "tiny", "scriptsize", "footnotesize",
 139 "small", "normal", "large", "larger", "largest",  "huge", "giant", 0};
 140
 141 /// LaTeX 2.09 names for font families
 142 char const * const known_old_font_families[] = { "rm", "sf", "tt", 0};
 143
 144 /// LaTeX names for font families
 145 char const * const known_font_families[] = { "rmfamily", "sffamily",
 146 "ttfamily", 0};
 147
 148 /// the same as known_old_font_families and known_font_families with .lyx names
 149 char const * const known_coded_font_families[] = { "roman", "sans",
 150 "typewriter", 0};
 151
 152 /// LaTeX 2.09 names for font series
 153 char const * const known_old_font_series[] = { "bf", 0};
 154
 155 /// LaTeX names for font series
 156 char const * const known_font_series[] = { "bfseries", "mdseries", 0};
 157
 158 /// the same as known_old_font_series and known_font_series with .lyx names
 159 char const * const known_coded_font_series[] = { "bold", "medium", 0};
 160
 161 /// LaTeX 2.09 names for font shapes
 162 char const * const known_old_font_shapes[] = { "it", "sl", "sc", 0};
 163
 164 /// LaTeX names for font shapes
 165 char const * const known_font_shapes[] = { "itshape", "slshape", "scshape",
 166 "upshape", 0};
 167
 168 /// the same as known_old_font_shapes and known_font_shapes with .lyx names
 169 char const * const known_coded_font_shapes[] = { "italic", "slanted",
 170 "smallcaps", "up", 0};
 171
 172 /*!
 173  * Graphics file extensions known by the dvips driver of the graphics package.
 174  * These extensions are used to complete the filename of an included
 175  * graphics file if it does not contain an extension.
 176  * The order must be the same that latex uses to find a file, because we
 177  * will use the first extension that matches.
 178  * This is only an approximation for the common cases. If we would want to
 179  * do it right in all cases, we would need to know which graphics driver is
 180  * used and know the extensions of every driver of the graphics package.
 181  */
 182 char const * const known_dvips_graphics_formats[] = {"eps", "ps", "eps.gz",
 183 "ps.gz", "eps.Z", "ps.Z", 0};
 184
 185 /*!
 186  * Graphics file extensions known by the pdftex driver of the graphics package.
 187  * \sa known_dvips_graphics_formats
 188  */
 189 char const * const known_pdftex_graphics_formats[] = {"png", "pdf", "jpg",
 190 "mps", "tif", 0};
 191
 192 /*!
 193  * Known file extensions for TeX files as used by \\include.
 194  */
 195 char const * const known_tex_extensions[] = {"tex", 0};
 196
 197 /// spaces known by InsetSpace
 198 char const * const known_spaces[] = { " ", "space", ",", "thinspace", "quad",
 199 "qquad", "enspace", "enskip", "negthinspace", 0};
 200
 201 /// the same as known_spaces with .lyx names
 202 char const * const known_coded_spaces[] = { "space{}", "space{}",
 203 "thinspace{}", "thinspace{}", "quad{}", "qquad{}", "enspace{}", "enskip{}",
 204 "negthinspace{}", 0};
 205
 206
 207 /// splits "x=z, y=b" into a map
 208 map<string, string> split_map(string const & s)
 209 {
 210         map<string, string> res;
 211         vector<string> v;
 212         split(s, v);
 213         for (size_t i = 0; i < v.size(); ++i) {
 214                 size_t const pos   = v[i].find('=');
 215                 string const index = v[i].substr(0, pos);
 216                 string const value = v[i].substr(pos + 1, string::npos);
 217                 res[trim(index)] = trim(value);
 218         }
 219         return res;
 220 }
 221
 222
 223 /*!
 224  * Split a LaTeX length into value and unit.
 225  * The latter can be a real unit like "pt", or a latex length variable
 226  * like "\textwidth". The unit may contain additional stuff like glue
 227  * lengths, but we don't care, because such lengths are ERT anyway.
 228  * \returns true if \p value and \p unit are valid.
 229  */
 230 bool splitLatexLength(string const & len, string & value, string & unit)
 231 {
 232         if (len.empty())
 233                 return false;
 234         const string::size_type i = len.find_first_not_of(" -+0123456789.,");
 235         //'4,5' is a valid LaTeX length number. Change it to '4.5'
 236         string const length = subst(len, ',', '.');
 237         if (i == string::npos)
 238                 return false;
 239         if (i == 0) {
 240                 if (len[0] == '\\') {
 241                         // We had something like \textwidth without a factor
 242                         value = "1.0";
 243                 } else {
 244                         return false;
 245                 }
 246         } else {
 247                 value = trim(string(length, 0, i));
 248         }
 249         if (value == "-")
 250                 value = "-1.0";
 251         // 'cM' is a valid LaTeX length unit. Change it to 'cm'
 252         if (contains(len, '\\'))
 253                 unit = trim(string(len, i));
 254         else
 255                 unit = ascii_lowercase(trim(string(len, i)));
 256         return true;
 257 }
 258
 259
 260 /// A simple function to translate a latex length to something lyx can
 261 /// understand. Not perfect, but rather best-effort.
 262 bool translate_len(string const & length, string & valstring, string & unit)
 263 {
 264         if (!splitLatexLength(length, valstring, unit))
 265                 return false;
 266         // LyX uses percent values
 267         double value;
 268         istringstream iss(valstring);
 269         iss >> value;
 270         value *= 100;
 271         ostringstream oss;
 272         oss << value;
 273         string const percentval = oss.str();
 274         // a normal length
 275         if (unit.empty() || unit[0] != '\\')
 276                 return true;
 277         string::size_type const i = unit.find(' ');
 278         string const endlen = (i == string::npos) ? string() : string(unit, i);
 279         if (unit == "\\textwidth") {
 280                 valstring = percentval;
 281                 unit = "text%" + endlen;
 282         } else if (unit == "\\columnwidth") {
 283                 valstring = percentval;
 284                 unit = "col%" + endlen;
 285         } else if (unit == "\\paperwidth") {
 286                 valstring = percentval;
 287                 unit = "page%" + endlen;
 288         } else if (unit == "\\linewidth") {
 289                 valstring = percentval;
 290                 unit = "line%" + endlen;
 291         } else if (unit == "\\paperheight") {
 292                 valstring = percentval;
 293                 unit = "pheight%" + endlen;
 294         } else if (unit == "\\textheight") {
 295                 valstring = percentval;
 296                 unit = "theight%" + endlen;
 297         }
 298         return true;
 299 }
 300
 301 }
 302
 303
 304 string translate_len(string const & length)
 305 {
 306         string unit;
 307         string value;
 308         if (translate_len(length, value, unit))
 309                 return value + unit;
 310         // If the input is invalid, return what we have.
 311         return length;
 312 }
 313
 314
 315 namespace {
 316
 317 /*!
 318  * Translates a LaTeX length into \p value, \p unit and
 319  * \p special parts suitable for a box inset.
 320  * The difference from translate_len() is that a box inset knows about
 321  * some special "units" that are stored in \p special.
 322  */
 323 void translate_box_len(string const & length, string & value, string & unit, string & special)
 324 {
 325         if (translate_len(length, value, unit)) {
 326                 if (unit == "\\height" || unit == "\\depth" ||
 327                     unit == "\\totalheight" || unit == "\\width") {
 328                         special = unit.substr(1);
 329                         // The unit is not used, but LyX requires a dummy setting
 330                         unit = "in";
 331                 } else
 332                         special = "none";
 333         } else {
 334                 value.clear();
 335                 unit = length;
 336                 special = "none";
 337         }
 338 }
 339
 340
 341 /*!
 342  * Find a file with basename \p name in path \p path and an extension
 343  * in \p extensions.
 344  */
 345 string find_file(string const & name, string const & path,
 346                  char const * const * extensions)
 347 {
 348         // FIXME UNICODE encoding of name and path may be wrong (makeAbsPath
 349         // expects utf8)
 350         for (char const * const * what = extensions; *what; ++what) {
 351                 string const trial = addExtension(name, *what);
 352                 if (makeAbsPath(trial, path).exists())
 353                         return trial;
 354         }
 355         return string();
 356 }
 357
 358
 359 void begin_inset(ostream & os, string const & name)
 360 {
 361         os << "\n\\begin_inset " << name;
 362 }
 363
 364
 365 void end_inset(ostream & os)
 366 {
 367         os << "\n\\end_inset\n\n";
 368 }
 369
 370
 371 void skip_braces(Parser & p)
 372 {
 373         if (p.next_token().cat() != catBegin)
 374                 return;
 375         p.get_token();
 376         if (p.next_token().cat() == catEnd) {
 377                 p.get_token();
 378                 return;
 379         }
 380         p.putback();
 381 }
 382
 383
 384 void handle_ert(ostream & os, string const & s, Context & context)
 385 {
 386         // We must have a valid layout before outputting the ERT inset.
 387         context.check_layout(os);
 388         Context newcontext(true, context.textclass);
 389         begin_inset(os, "ERT");
 390         os << "\nstatus collapsed\n";
 391         newcontext.check_layout(os);
 392         for (string::const_iterator it = s.begin(), et = s.end(); it != et; ++it) {
 393                 if (*it == '\\')
 394                         os << "\n\\backslash\n";
 395                 else if (*it == '\n') {
 396                         newcontext.new_paragraph(os);
 397                         newcontext.check_layout(os);
 398                 } else
 399                         os << *it;
 400         }
 401         newcontext.check_end_layout(os);
 402         end_inset(os);
 403 }
 404
 405
 406 void handle_comment(ostream & os, string const & s, Context & context)
 407 {
 408         // TODO: Handle this better
 409         Context newcontext(true, context.textclass);
 410         begin_inset(os, "ERT");
 411         os << "\nstatus collapsed\n";
 412         newcontext.check_layout(os);
 413         for (string::const_iterator it = s.begin(), et = s.end(); it != et; ++it) {
 414                 if (*it == '\\')
 415                         os << "\n\\backslash\n";
 416                 else
 417                         os << *it;
 418         }
 419         // make sure that our comment is the last thing on the line
 420         newcontext.new_paragraph(os);
 421         newcontext.check_layout(os);
 422         newcontext.check_end_layout(os);
 423         end_inset(os);
 424 }
 425
 426
 427 Layout const * findLayout(TextClass const & textclass, string const & name)
 428 {
 429         DocumentClass::const_iterator lit = textclass.begin();
 430         DocumentClass::const_iterator len = textclass.end();
 431         for (; lit != len; ++lit)
 432                 if (lit->latexname() == name)
 433                         return &*lit;
 434         return 0;
 435 }
 436
 437
 438 void eat_whitespace(Parser &, ostream &, Context &, bool);
 439
 440
 441 Layout * captionlayout()
 442 {
 443         static Layout * lay = 0;
 444         if (!lay) {
 445                 lay = new Layout;
 446                 lay->name_ = from_ascii("Caption");
 447                 lay->latexname_ = "caption";
 448                 lay->latextype = LATEX_COMMAND;
 449                 lay->optionalargs = 1;
 450         }
 451         return lay;
 452 }
 453
 454
 455 void output_command_layout(ostream & os, Parser & p, bool outer,
 456                            Context & parent_context,
 457                            Layout const * newlayout)
 458 {
 459         parent_context.check_end_layout(os);
 460         Context context(true, parent_context.textclass, newlayout,
 461                         parent_context.layout, parent_context.font);
 462         if (parent_context.deeper_paragraph) {
 463                 // We are beginning a nested environment after a
 464                 // deeper paragraph inside the outer list environment.
 465                 // Therefore we don't need to output a "begin deeper".
 466                 context.need_end_deeper = true;
 467         }
 468         context.check_deeper(os);
 469         context.check_layout(os);
 470         if (context.layout->optionalargs > 0) {
 471                 eat_whitespace(p, os, context, false);
 472                 if (p.next_token().character() == '[') {
 473                         p.get_token(); // eat '['
 474                         begin_inset(os, "OptArg\n");
 475                         os << "status collapsed\n\n";
 476                         parse_text_in_inset(p, os, FLAG_BRACK_LAST, outer, context);
 477                         end_inset(os);
 478                         eat_whitespace(p, os, context, false);
 479                 }
 480         }
 481         parse_text(p, os, FLAG_ITEM, outer, context);
 482         context.check_end_layout(os);
 483         if (parent_context.deeper_paragraph) {
 484                 // We must suppress the "end deeper" because we
 485                 // suppressed the "begin deeper" above.
 486                 context.need_end_deeper = false;
 487         }
 488         context.check_end_deeper(os);
 489         // We don't need really a new paragraph, but
 490         // we must make sure that the next item gets a \begin_layout.
 491         parent_context.new_paragraph(os);
 492 }
 493
 494
 495 /*!
 496  * Output a space if necessary.
 497  * This function gets called for every whitespace token.
 498  *
 499  * We have three cases here:
 500  * 1. A space must be suppressed. Example: The lyxcode case below
 501  * 2. A space may be suppressed. Example: Spaces before "\par"
 502  * 3. A space must not be suppressed. Example: A space between two words
 503  *
 504  * We currently handle only 1. and 3 and from 2. only the case of
 505  * spaces before newlines as a side effect.
 506  *
 507  * 2. could be used to suppress as many spaces as possible. This has two effects:
 508  * - Reimporting LyX generated LaTeX files changes almost no whitespace
 509  * - Superflous whitespace from non LyX generated LaTeX files is removed.
 510  * The drawback is that the logic inside the function becomes
 511  * complicated, and that is the reason why it is not implemented.
 512  */
 513 void check_space(Parser const & p, ostream & os, Context & context)
 514 {
 515         Token const next = p.next_token();
 516         Token const curr = p.curr_token();
 517         // A space before a single newline and vice versa must be ignored
 518         // LyX emits a newline before \end{lyxcode}.
 519         // This newline must be ignored,
 520         // otherwise LyX will add an additional protected space.
 521         if (next.cat() == catSpace ||
 522             next.cat() == catNewline ||
 523             (next.cs() == "end" && context.layout->free_spacing && curr.cat() == catNewline)) {
 524                 return;
 525         }
 526         context.check_layout(os);
 527         os << ' ';
 528 }
 529
 530
 531 /*!
 532  * Parse all arguments of \p command
 533  */
 534 void parse_arguments(string const & command,
 535                      vector<ArgumentType> const & template_arguments,
 536                      Parser & p, ostream & os, bool outer, Context & context)
 537 {
 538         string ert = command;
 539         size_t no_arguments = template_arguments.size();
 540         for (size_t i = 0; i < no_arguments; ++i) {
 541                 switch (template_arguments[i]) {
 542                 case required:
 543                         // This argument contains regular LaTeX
 544                         handle_ert(os, ert + '{', context);
 545                         eat_whitespace(p, os, context, false);
 546                         parse_text(p, os, FLAG_ITEM, outer, context);
 547                         ert = "}";
 548                         break;
 549                 case verbatim:
 550                         // This argument may contain special characters
 551                         ert += '{' + p.verbatim_item() + '}';
 552                         break;
 553                 case optional:
 554                         ert += p.getOpt();
 555                         break;
 556                 }
 557         }
 558         handle_ert(os, ert, context);
 559 }
 560
 561
 562 /*!
 563  * Check whether \p command is a known command. If yes,
 564  * handle the command with all arguments.
 565  * \return true if the command was parsed, false otherwise.
 566  */
 567 bool parse_command(string const & command, Parser & p, ostream & os,
 568                    bool outer, Context & context)
 569 {
 570         if (known_commands.find(command) != known_commands.end()) {
 571                 parse_arguments(command, known_commands[command], p, os,
 572                                 outer, context);
 573                 return true;
 574         }
 575         return false;
 576 }
 577
 578
 579 /// Parses a minipage or parbox
 580 void parse_box(Parser & p, ostream & os, unsigned flags, bool outer,
 581                Context & parent_context, bool use_parbox)
 582 {
 583         string position;
 584         string inner_pos;
 585         // We need to set the height to the LaTeX default of 1\\totalheight
 586         // for the case when no height argument is given
 587         string height_value = "1";
 588         string height_unit = "in";
 589         string height_special = "totalheight";
 590         string latex_height;
 591         if (p.next_token().asInput() == "[") {
 592                 position = p.getArg('[', ']');
 593                 if (position != "t" && position != "c" && position != "b") {
 594                         position = "c";
 595                         cerr << "invalid position for minipage/parbox" << endl;
 596                 }
 597                 if (p.next_token().asInput() == "[") {
 598                         latex_height = p.getArg('[', ']');
 599                         translate_box_len(latex_height, height_value, height_unit, height_special);
 600
 601                         if (p.next_token().asInput() == "[") {
 602                                 inner_pos = p.getArg('[', ']');
 603                                 if (inner_pos != "c" && inner_pos != "t" &&
 604                                     inner_pos != "b" && inner_pos != "s") {
 605                                         inner_pos = position;
 606                                         cerr << "invalid inner_pos for minipage/parbox"
 607                                              << endl;
 608                                 }
 609                         }
 610                 }
 611         }
 612         string width_value;
 613         string width_unit;
 614         string const latex_width = p.verbatim_item();
 615         translate_len(latex_width, width_value, width_unit);
 616         if (contains(width_unit, '\\') || contains(height_unit, '\\')) {
 617                 // LyX can't handle length variables
 618                 ostringstream ss;
 619                 if (use_parbox)
 620                         ss << "\\parbox";
 621                 else
 622                         ss << "\\begin{minipage}";
 623                 if (!position.empty())
 624                         ss << '[' << position << ']';
 625                 if (!latex_height.empty())
 626                         ss << '[' << latex_height << ']';
 627                 if (!inner_pos.empty())
 628                         ss << '[' << inner_pos << ']';
 629                 ss << "{" << latex_width << "}";
 630                 if (use_parbox)
 631                         ss << '{';
 632                 handle_ert(os, ss.str(), parent_context);
 633                 parent_context.new_paragraph(os);
 634                 parse_text_in_inset(p, os, flags, outer, parent_context);
 635                 if (use_parbox)
 636                         handle_ert(os, "}", parent_context);
 637                 else
 638                         handle_ert(os, "\\end{minipage}", parent_context);
 639         } else {
 640                 // LyX does not like empty positions, so we have
 641                 // to set them to the LaTeX default values here.
 642                 if (position.empty())
 643                         position = "c";
 644                 if (inner_pos.empty())
 645                         inner_pos = position;
 646                 parent_context.check_layout(os);
 647                 begin_inset(os, "Box Frameless\n");
 648                 os << "position \"" << position << "\"\n";
 649                 os << "hor_pos \"c\"\n";
 650                 os << "has_inner_box 1\n";
 651                 os << "inner_pos \"" << inner_pos << "\"\n";
 652                 os << "use_parbox " << use_parbox << "\n";
 653                 os << "width \"" << width_value << width_unit << "\"\n";
 654                 os << "special \"none\"\n";
 655                 os << "height \"" << height_value << height_unit << "\"\n";
 656                 os << "height_special \"" << height_special << "\"\n";
 657                 os << "status open\n\n";
 658                 parse_text_in_inset(p, os, flags, outer, parent_context);
 659                 end_inset(os);
 660 #ifdef PRESERVE_LAYOUT
 661                 // lyx puts a % after the end of the minipage
 662                 if (p.next_token().cat() == catNewline && p.next_token().cs().size() > 1) {
 663                         // new paragraph
 664                         //handle_comment(os, "%dummy", parent_context);
 665                         p.get_token();
 666                         p.skip_spaces();
 667                         parent_context.new_paragraph(os);
 668                 }
 669                 else if (p.next_token().cat() == catSpace || p.next_token().cat() == catNewline) {
 670                         //handle_comment(os, "%dummy", parent_context);
 671                         p.get_token();
 672                         p.skip_spaces();
 673                         // We add a protected space if something real follows
 674                         if (p.good() && p.next_token().cat() != catComment) {
 675                                 os << "\\InsetSpace ~\n";
 676                         }
 677                 }
 678 #endif
 679         }
 680 }
 681
 682
 683 /// parse an unknown environment
 684 void parse_unknown_environment(Parser & p, string const & name, ostream & os,
 685                                unsigned flags, bool outer,
 686                                Context & parent_context)
 687 {
 688         if (name == "tabbing")
 689                 // We need to remember that we have to handle '\=' specially
 690                 flags |= FLAG_TABBING;
 691
 692         // We need to translate font changes and paragraphs inside the
 693         // environment to ERT if we have a non standard font.
 694         // Otherwise things like
 695         // \large\begin{foo}\huge bar\end{foo}
 696         // will not work.
 697         bool const specialfont =
 698                 (parent_context.font != parent_context.normalfont);
 699         bool const new_layout_allowed = parent_context.new_layout_allowed;
 700         if (specialfont)
 701                 parent_context.new_layout_allowed = false;
 702         handle_ert(os, "\\begin{" + name + "}", parent_context);
 703         parse_text_snippet(p, os, flags, outer, parent_context);
 704         handle_ert(os, "\\end{" + name + "}", parent_context);
 705         if (specialfont)
 706                 parent_context.new_layout_allowed = new_layout_allowed;
 707 }
 708
 709
 710 void parse_environment(Parser & p, ostream & os, bool outer,
 711                        Context & parent_context)
 712 {
 713         Layout const * newlayout;
 714         string const name = p.getArg('{', '}');
 715         const bool is_starred = suffixIs(name, '*');
 716         string const unstarred_name = rtrim(name, "*");
 717         active_environments.push_back(name);
 718
 719         if (is_math_env(name)) {
 720                 parent_context.check_layout(os);
 721                 begin_inset(os, "Formula ");
 722                 os << "\\begin{" << name << "}";
 723                 parse_math(p, os, FLAG_END, MATH_MODE);
 724                 os << "\\end{" << name << "}";
 725                 end_inset(os);
 726         }
 727
 728         else if (name == "tabular" || name == "longtable") {
 729                 eat_whitespace(p, os, parent_context, false);
 730                 parent_context.check_layout(os);
 731                 begin_inset(os, "Tabular ");
 732                 handle_tabular(p, os, name == "longtable", parent_context);
 733                 end_inset(os);
 734                 p.skip_spaces();
 735         }
 736
 737         else if (parent_context.textclass.floats().typeExist(unstarred_name)) {
 738                 eat_whitespace(p, os, parent_context, false);
 739                 parent_context.check_layout(os);
 740                 begin_inset(os, "Float " + unstarred_name + "\n");
 741                 if (p.next_token().asInput() == "[") {
 742                         os << "placement " << p.getArg('[', ']') << '\n';
 743                 }
 744                 os << "wide " << convert<string>(is_starred)
 745                    << "\nsideways false"
 746                    << "\nstatus open\n\n";
 747                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
 748                 end_inset(os);
 749                 // We don't need really a new paragraph, but
 750                 // we must make sure that the next item gets a \begin_layout.
 751                 parent_context.new_paragraph(os);
 752                 p.skip_spaces();
 753         }
 754
 755         else if (name == "minipage") {
 756                 eat_whitespace(p, os, parent_context, false);
 757                 parse_box(p, os, FLAG_END, outer, parent_context, false);
 758                 p.skip_spaces();
 759         }
 760
 761         else if (name == "comment") {
 762                 eat_whitespace(p, os, parent_context, false);
 763                 parent_context.check_layout(os);
 764                 begin_inset(os, "Note Comment\n");
 765                 os << "status open\n";
 766                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
 767                 end_inset(os);
 768                 p.skip_spaces();
 769         }
 770
 771         else if (name == "lyxgreyedout") {
 772                 eat_whitespace(p, os, parent_context, false);
 773                 parent_context.check_layout(os);
 774                 begin_inset(os, "Note Greyedout\n");
 775                 os << "status open\n";
 776                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
 777                 end_inset(os);
 778                 p.skip_spaces();
 779         }
 780
 781         else if (name == "framed") {
 782                 eat_whitespace(p, os, parent_context, false);
 783                 parent_context.check_layout(os);
 784                 begin_inset(os, "Note Framed\n");
 785                 os << "status open\n";
 786                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
 787                 end_inset(os);
 788                 p.skip_spaces();
 789         }
 790
 791         else if (name == "shaded") {
 792                 eat_whitespace(p, os, parent_context, false);
 793                 parent_context.check_layout(os);
 794                 begin_inset(os, "Note Shaded\n");
 795                 os << "status open\n";
 796                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
 797                 end_inset(os);
 798                 p.skip_spaces();
 799         }
 800
 801         else if (!parent_context.new_layout_allowed)
 802                 parse_unknown_environment(p, name, os, FLAG_END, outer,
 803                                           parent_context);
 804
 805         // Alignment settings
 806         else if (name == "center" || name == "flushleft" || name == "flushright" ||
 807                  name == "centering" || name == "raggedright" || name == "raggedleft") {
 808                 eat_whitespace(p, os, parent_context, false);
 809                 // We must begin a new paragraph if not already done
 810                 if (! parent_context.atParagraphStart()) {
 811                         parent_context.check_end_layout(os);
 812                         parent_context.new_paragraph(os);
 813                 }
 814                 if (name == "flushleft" || name == "raggedright")
 815                         parent_context.add_extra_stuff("\\align left\n");
 816                 else if (name == "flushright" || name == "raggedleft")
 817                         parent_context.add_extra_stuff("\\align right\n");
 818                 else
 819                         parent_context.add_extra_stuff("\\align center\n");
 820                 parse_text(p, os, FLAG_END, outer, parent_context);
 821                 // Just in case the environment is empty ..
 822                 parent_context.extra_stuff.erase();
 823                 // We must begin a new paragraph to reset the alignment
 824                 parent_context.new_paragraph(os);
 825                 p.skip_spaces();
 826         }
 827
 828         // The single '=' is meant here.
 829         else if ((newlayout = findLayout(parent_context.textclass, name)) &&
 830                   newlayout->isEnvironment()) {
 831                 eat_whitespace(p, os, parent_context, false);
 832                 Context context(true, parent_context.textclass, newlayout,
 833                                 parent_context.layout, parent_context.font);
 834                 if (parent_context.deeper_paragraph) {
 835                         // We are beginning a nested environment after a
 836                         // deeper paragraph inside the outer list environment.
 837                         // Therefore we don't need to output a "begin deeper".
 838                         context.need_end_deeper = true;
 839                 }
 840                 parent_context.check_end_layout(os);
 841                 switch (context.layout->latextype) {
 842                 case  LATEX_LIST_ENVIRONMENT:
 843                         context.extra_stuff = "\\labelwidthstring "
 844                                 + p.verbatim_item() + '\n';
 845                         p.skip_spaces();
 846                         break;
 847                 case  LATEX_BIB_ENVIRONMENT:
 848                         p.verbatim_item(); // swallow next arg
 849                         p.skip_spaces();
 850                         break;
 851                 default:
 852                         break;
 853                 }
 854                 context.check_deeper(os);
 855                 parse_text(p, os, FLAG_END, outer, context);
 856                 context.check_end_layout(os);
 857                 if (parent_context.deeper_paragraph) {
 858                         // We must suppress the "end deeper" because we
 859                         // suppressed the "begin deeper" above.
 860                         context.need_end_deeper = false;
 861                 }
 862                 context.check_end_deeper(os);
 863                 parent_context.new_paragraph(os);
 864                 p.skip_spaces();
 865         }
 866
 867         else if (name == "appendix") {
 868                 // This is no good latex style, but it works and is used in some documents...
 869                 eat_whitespace(p, os, parent_context, false);
 870                 parent_context.check_end_layout(os);
 871                 Context context(true, parent_context.textclass, parent_context.layout,
 872                                 parent_context.layout, parent_context.font);
 873                 context.check_layout(os);
 874                 os << "\\start_of_appendix\n";
 875                 parse_text(p, os, FLAG_END, outer, context);
 876                 context.check_end_layout(os);
 877                 p.skip_spaces();
 878         }
 879
 880         else if (known_environments.find(name) != known_environments.end()) {
 881                 vector<ArgumentType> arguments = known_environments[name];
 882                 // The last "argument" denotes wether we may translate the
 883                 // environment contents to LyX
 884                 // The default required if no argument is given makes us
 885                 // compatible with the reLyXre environment.
 886                 ArgumentType contents = arguments.empty() ?
 887                         required :
 888                         arguments.back();
 889                 if (!arguments.empty())
 890                         arguments.pop_back();
 891                 // See comment in parse_unknown_environment()
 892                 bool const specialfont =
 893                         (parent_context.font != parent_context.normalfont);
 894                 bool const new_layout_allowed =
 895                         parent_context.new_layout_allowed;
 896                 if (specialfont)
 897                         parent_context.new_layout_allowed = false;
 898                 parse_arguments("\\begin{" + name + "}", arguments, p, os,
 899                                 outer, parent_context);
 900                 if (contents == verbatim)
 901                         handle_ert(os, p.verbatimEnvironment(name),
 902                                    parent_context);
 903                 else
 904                         parse_text_snippet(p, os, FLAG_END, outer,
 905                                            parent_context);
 906                 handle_ert(os, "\\end{" + name + "}", parent_context);
 907                 if (specialfont)
 908                         parent_context.new_layout_allowed = new_layout_allowed;
 909         }
 910
 911         else
 912                 parse_unknown_environment(p, name, os, FLAG_END, outer,
 913                                           parent_context);
 914
 915         active_environments.pop_back();
 916 }
 917
 918
 919 /// parses a comment and outputs it to \p os.
 920 void parse_comment(Parser & p, ostream & os, Token const & t, Context & context)
 921 {
 922         BOOST_ASSERT(t.cat() == catComment);
 923         if (!t.cs().empty()) {
 924                 context.check_layout(os);
 925                 handle_comment(os, '%' + t.cs(), context);
 926                 if (p.next_token().cat() == catNewline) {
 927                         // A newline after a comment line starts a new
 928                         // paragraph
 929                         if (context.new_layout_allowed) {
 930                                 if(!context.atParagraphStart())
 931                                         // Only start a new paragraph if not already
 932                                         // done (we might get called recursively)
 933                                         context.new_paragraph(os);
 934                         } else
 935                                 handle_ert(os, "\n", context);
 936                         eat_whitespace(p, os, context, true);
 937                 }
 938         } else {
 939                 // "%\n" combination
 940                 p.skip_spaces();
 941         }
 942 }
 943
 944
 945 /*!
 946  * Reads spaces and comments until the first non-space, non-comment token.
 947  * New paragraphs (double newlines or \\par) are handled like simple spaces
 948  * if \p eatParagraph is true.
 949  * Spaces are skipped, but comments are written to \p os.
 950  */
 951 void eat_whitespace(Parser & p, ostream & os, Context & context,
 952                     bool eatParagraph)
 953 {
 954         while (p.good()) {
 955                 Token const & t = p.get_token();
 956                 if (t.cat() == catComment)
 957                         parse_comment(p, os, t, context);
 958                 else if ((! eatParagraph && p.isParagraph()) ||
 959                          (t.cat() != catSpace && t.cat() != catNewline)) {
 960                         p.putback();
 961                         return;
 962                 }
 963         }
 964 }
 965
 966
 967 /*!
 968  * Set a font attribute, parse text and reset the font attribute.
 969  * \param attribute Attribute name (e.g. \\family, \\shape etc.)
 970  * \param currentvalue Current value of the attribute. Is set to the new
 971  * value during parsing.
 972  * \param newvalue New value of the attribute
 973  */
 974 void parse_text_attributes(Parser & p, ostream & os, unsigned flags, bool outer,
 975                            Context & context, string const & attribute,
 976                            string & currentvalue, string const & newvalue)
 977 {
 978         context.check_layout(os);
 979         string const oldvalue = currentvalue;
 980         currentvalue = newvalue;
 981         os << '\n' << attribute << ' ' << newvalue << "\n";
 982         parse_text_snippet(p, os, flags, outer, context);
 983         context.check_layout(os);
 984         os << '\n' << attribute << ' ' << oldvalue << "\n";
 985         currentvalue = oldvalue;
 986 }
 987
 988
 989 /// get the arguments of a natbib or jurabib citation command
 990 void get_cite_arguments(Parser & p, bool natbibOrder,
 991         string & before, string & after)
 992 {
 993         // We need to distinguish "" and "[]", so we can't use p.getOpt().
 994
 995         // text before the citation
 996         before.clear();
 997         // text after the citation
 998         after = p.getFullOpt();
 999
1000         if (!after.empty()) {
1001                 before = p.getFullOpt();
1002                 if (natbibOrder && !before.empty())
1003                         swap(before, after);
1004         }
1005 }
1006
1007
1008 /// Convert filenames with TeX macros and/or quotes to something LyX
1009 /// can understand
1010 string const normalize_filename(string const & name)
1011 {
1012         Parser p(trim(name, "\""));
1013         ostringstream os;
1014         while (p.good()) {
1015                 Token const & t = p.get_token();
1016                 if (t.cat() != catEscape)
1017                         os << t.asInput();
1018                 else if (t.cs() == "lyxdot") {
1019                         // This is used by LyX for simple dots in relative
1020                         // names
1021                         os << '.';
1022                         p.skip_spaces();
1023                 } else if (t.cs() == "space") {
1024                         os << ' ';
1025                         p.skip_spaces();
1026                 } else
1027                         os << t.asInput();
1028         }
1029         return os.str();
1030 }
1031
1032
1033 /// Convert \p name from TeX convention (relative to master file) to LyX
1034 /// convention (relative to .lyx file) if it is relative
1035 void fix_relative_filename(string & name)
1036 {
1037         FileName fname(name);
1038         if (fname.isAbsolute())
1039                 return;
1040
1041         // FIXME UNICODE encoding of name may be wrong (makeAbsPath expects
1042         // utf8)
1043         name = to_utf8(makeRelPath(from_utf8(makeAbsPath(name, getMasterFilePath()).absFilename()),
1044                                    from_utf8(getParentFilePath())));
1045 }
1046
1047
1048 /// Parse a NoWeb Scrap section. The initial "<<" is already parsed.
1049 void parse_noweb(Parser & p, ostream & os, Context & context)
1050 {
1051         // assemble the rest of the keyword
1052         string name("<<");
1053         bool scrap = false;
1054         while (p.good()) {
1055                 Token const & t = p.get_token();
1056                 if (t.asInput() == ">" && p.next_token().asInput() == ">") {
1057                         name += ">>";
1058                         p.get_token();
1059                         scrap = (p.good() && p.next_token().asInput() == "=");
1060                         if (scrap)
1061                                 name += p.get_token().asInput();
1062                         break;
1063                 }
1064                 name += t.asInput();
1065         }
1066
1067         if (!scrap || !context.new_layout_allowed ||
1068             !context.textclass.hasLayout(from_ascii("Scrap"))) {
1069                 cerr << "Warning: Could not interpret '" << name
1070                      << "'. Ignoring it." << endl;
1071                 return;
1072         }
1073
1074         // We use new_paragraph instead of check_end_layout because the stuff
1075         // following the noweb chunk needs to start with a \begin_layout.
1076         // This may create a new paragraph even if there was none in the
1077         // noweb file, but the alternative is an invalid LyX file. Since
1078         // noweb code chunks are implemented with a layout style in LyX they
1079         // always must be in an own paragraph.
1080         context.new_paragraph(os);
1081         Context newcontext(true, context.textclass,
1082                 &context.textclass[from_ascii("Scrap")]);
1083         newcontext.check_layout(os);
1084         os << name;
1085         while (p.good()) {
1086                 Token const & t = p.get_token();
1087                 // We abuse the parser a bit, because this is no TeX syntax
1088                 // at all.
1089                 if (t.cat() == catEscape)
1090                         os << subst(t.asInput(), "\\", "\n\\backslash\n");
1091                 else
1092                         os << subst(t.asInput(), "\n", "\n\\newline\n");
1093                 // The scrap chunk is ended by an @ at the beginning of a line.
1094                 // After the @ the line may contain a comment and/or
1095                 // whitespace, but nothing else.
1096                 if (t.asInput() == "@" && p.prev_token().cat() == catNewline &&
1097                     (p.next_token().cat() == catSpace ||
1098                      p.next_token().cat() == catNewline ||
1099                      p.next_token().cat() == catComment)) {
1100                         while (p.good() && p.next_token().cat() == catSpace)
1101                                 os << p.get_token().asInput();
1102                         if (p.next_token().cat() == catComment)
1103                                 // The comment includes a final '\n'
1104                                 os << p.get_token().asInput();
1105                         else {
1106                                 if (p.next_token().cat() == catNewline)
1107                                         p.get_token();
1108                                 os << '\n';
1109                         }
1110                         break;
1111                 }
1112         }
1113         newcontext.check_end_layout(os);
1114 }
1115
1116 } // anonymous namespace
1117
1118
1119 void parse_text(Parser & p, ostream & os, unsigned flags, bool outer,
1120                 Context & context)
1121 {
1122         Layout const * newlayout = 0;
1123         // store the current selectlanguage to be used after \foreignlanguage
1124         string selectlang;
1125         // Store the latest bibliographystyle (needed for bibtex inset)
1126         string bibliographystyle;
1127         bool const use_natbib = used_packages.find("natbib") != used_packages.end();
1128         bool const use_jurabib = used_packages.find("jurabib") != used_packages.end();
1129         while (p.good()) {
1130                 Token const & t = p.get_token();
1131
1132 #ifdef FILEDEBUG
1133                 cerr << "t: " << t << " flags: " << flags << "\n";
1134 #endif
1135
1136                 if (flags & FLAG_ITEM) {
1137                         if (t.cat() == catSpace)
1138                                 continue;
1139
1140                         flags &= ~FLAG_ITEM;
1141                         if (t.cat() == catBegin) {
1142                                 // skip the brace and collect everything to the next matching
1143                                 // closing brace
1144                                 flags |= FLAG_BRACE_LAST;
1145                                 continue;
1146                         }
1147
1148                         // handle only this single token, leave the loop if done
1149                         flags |= FLAG_LEAVE;
1150                 }
1151
1152                 if (t.character() == ']' && (flags & FLAG_BRACK_LAST))
1153                         return;
1154
1155                 //
1156                 // cat codes
1157                 //
1158                 if (t.cat() == catMath) {
1159                         // we are inside some text mode thingy, so opening new math is allowed
1160                         context.check_layout(os);
1161                         begin_inset(os, "Formula ");
1162                         Token const & n = p.get_token();
1163                         if (n.cat() == catMath && outer) {
1164                                 // TeX's $$...$$ syntax for displayed math
1165                                 os << "\\[";
1166                                 parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
1167                                 os << "\\]";
1168                                 p.get_token(); // skip the second '$' token
1169                         } else {
1170                                 // simple $...$  stuff
1171                                 p.putback();
1172                                 os << '$';
1173                                 parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
1174                                 os << '$';
1175                         }
1176                         end_inset(os);
1177                 }
1178
1179                 else if (t.cat() == catSuper || t.cat() == catSub)
1180                         cerr << "catcode " << t << " illegal in text mode\n";
1181
1182                 // Basic support for english quotes. This should be
1183                 // extended to other quotes, but is not so easy (a
1184                 // left english quote is the same as a right german
1185                 // quote...)
1186                 else if (t.asInput() == "`" && p.next_token().asInput() == "`") {
1187                         context.check_layout(os);
1188                         begin_inset(os, "Quotes ");
1189                         os << "eld";
1190                         end_inset(os);
1191                         p.get_token();
1192                         skip_braces(p);
1193                 }
1194                 else if (t.asInput() == "'" && p.next_token().asInput() == "'") {
1195                         context.check_layout(os);
1196                         begin_inset(os, "Quotes ");
1197                         os << "erd";
1198                         end_inset(os);
1199                         p.get_token();
1200                         skip_braces(p);
1201                 }
1202
1203                 else if (t.asInput() == ">" && p.next_token().asInput() == ">") {
1204                         context.check_layout(os);
1205                         begin_inset(os, "Quotes ");
1206                         os << "ald";
1207                         end_inset(os);
1208                         p.get_token();
1209                         skip_braces(p);
1210                 }
1211
1212                 else if (t.asInput() == "<" && p.next_token().asInput() == "<") {
1213                         context.check_layout(os);
1214                         begin_inset(os, "Quotes ");
1215                         os << "ard";
1216                         end_inset(os);
1217                         p.get_token();
1218                         skip_braces(p);
1219                 }
1220
1221                 else if (t.asInput() == "<"
1222                          && p.next_token().asInput() == "<" && noweb_mode) {
1223                         p.get_token();
1224                         parse_noweb(p, os, context);
1225                 }
1226
1227                 else if (t.cat() == catSpace || (t.cat() == catNewline && ! p.isParagraph()))
1228                         check_space(p, os, context);
1229
1230                 else if (t.character() == '[' && noweb_mode &&
1231                          p.next_token().character() == '[') {
1232                         // These can contain underscores
1233                         p.putback();
1234                         string const s = p.getFullOpt() + ']';
1235                         if (p.next_token().character() == ']')
1236                                 p.get_token();
1237                         else
1238                                 cerr << "Warning: Inserting missing ']' in '"
1239                                      << s << "'." << endl;
1240                         handle_ert(os, s, context);
1241                 }
1242
1243                 else if (t.cat() == catLetter ||
1244                                t.cat() == catOther ||
1245                                t.cat() == catAlign ||
1246                                t.cat() == catParameter) {
1247                         // This translates "&" to "\\&" which may be wrong...
1248                         context.check_layout(os);
1249                         os << t.character();
1250                 }
1251
1252                 else if (p.isParagraph()) {
1253                         if (context.new_layout_allowed)
1254                                 context.new_paragraph(os);
1255                         else
1256                                 handle_ert(os, "\\par ", context);
1257                         eat_whitespace(p, os, context, true);
1258                 }
1259
1260                 else if (t.cat() == catActive) {
1261                         context.check_layout(os);
1262                         if (t.character() == '~') {
1263                                 if (context.layout->free_spacing)
1264                                         os << ' ';
1265                                 else
1266                                         os << "\\InsetSpace ~\n";
1267                         } else
1268                                 os << t.character();
1269                 }
1270
1271                 else if (t.cat() == catBegin &&
1272                          p.next_token().cat() == catEnd) {
1273                         // {}
1274                         Token const prev = p.prev_token();
1275                         p.get_token();
1276                         if (p.next_token().character() == '`' ||
1277                             (prev.character() == '-' &&
1278                              p.next_token().character() == '-'))
1279                                 ; // ignore it in {}`` or -{}-
1280                         else
1281                                 handle_ert(os, "{}", context);
1282
1283                 }
1284
1285                 else if (t.cat() == catBegin) {
1286                         context.check_layout(os);
1287                         // special handling of font attribute changes
1288                         Token const prev = p.prev_token();
1289                         Token const next = p.next_token();
1290                         TeXFont const oldFont = context.font;
1291                         if (next.character() == '[' ||
1292                             next.character() == ']' ||
1293                             next.character() == '*') {
1294                                 p.get_token();
1295                                 if (p.next_token().cat() == catEnd) {
1296                                         os << next.character();
1297                                         p.get_token();
1298                                 } else {
1299                                         p.putback();
1300                                         handle_ert(os, "{", context);
1301                                         parse_text_snippet(p, os,
1302                                                         FLAG_BRACE_LAST,
1303                                                         outer, context);
1304                                         handle_ert(os, "}", context);
1305                                 }
1306                         } else if (! context.new_layout_allowed) {
1307                                 handle_ert(os, "{", context);
1308                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
1309                                                    outer, context);
1310                                 handle_ert(os, "}", context);
1311                         } else if (is_known(next.cs(), known_sizes)) {
1312                                 // next will change the size, so we must
1313                                 // reset it here
1314                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
1315                                                    outer, context);
1316                                 if (!context.atParagraphStart())
1317                                         os << "\n\\size "
1318                                            << context.font.size << "\n";
1319                         } else if (is_known(next.cs(), known_font_families)) {
1320                                 // next will change the font family, so we
1321                                 // must reset it here
1322                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
1323                                                    outer, context);
1324                                 if (!context.atParagraphStart())
1325                                         os << "\n\\family "
1326                                            << context.font.family << "\n";
1327                         } else if (is_known(next.cs(), known_font_series)) {
1328                                 // next will change the font series, so we
1329                                 // must reset it here
1330                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
1331                                                    outer, context);
1332                                 if (!context.atParagraphStart())
1333                                         os << "\n\\series "
1334                                            << context.font.series << "\n";
1335                         } else if (is_known(next.cs(), known_font_shapes)) {
1336                                 // next will change the font shape, so we
1337                                 // must reset it here
1338                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
1339                                                    outer, context);
1340                                 if (!context.atParagraphStart())
1341                                         os << "\n\\shape "
1342                                            << context.font.shape << "\n";
1343                         } else if (is_known(next.cs(), known_old_font_families) ||
1344                                    is_known(next.cs(), known_old_font_series) ||
1345                                    is_known(next.cs(), known_old_font_shapes)) {
1346                                 // next will change the font family, series
1347                                 // and shape, so we must reset it here
1348                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
1349                                                    outer, context);
1350                                 if (!context.atParagraphStart())
1351                                         os <<  "\n\\family "
1352                                            << context.font.family
1353                                            << "\n\\series "
1354                                            << context.font.series
1355                                            << "\n\\shape "
1356                                            << context.font.shape << "\n";
1357                         } else {
1358                                 handle_ert(os, "{", context);
1359                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
1360                                                    outer, context);
1361                                 handle_ert(os, "}", context);
1362                         }
1363                 }
1364
1365                 else if (t.cat() == catEnd) {
1366                         if (flags & FLAG_BRACE_LAST) {
1367                                 return;
1368                         }
1369                         cerr << "stray '}' in text\n";
1370                         handle_ert(os, "}", context);
1371                 }
1372
1373                 else if (t.cat() == catComment)
1374                         parse_comment(p, os, t, context);
1375
1376                 //
1377                 // control sequences
1378                 //
1379
1380                 else if (t.cs() == "(") {
1381                         context.check_layout(os);
1382                         begin_inset(os, "Formula");
1383                         os << " \\(";
1384                         parse_math(p, os, FLAG_SIMPLE2, MATH_MODE);
1385                         os << "\\)";
1386                         end_inset(os);
1387                 }
1388
1389                 else if (t.cs() == "[") {
1390                         context.check_layout(os);
1391                         begin_inset(os, "Formula");
1392                         os << " \\[";
1393                         parse_math(p, os, FLAG_EQUATION, MATH_MODE);
1394                         os << "\\]";
1395                         end_inset(os);
1396                 }
1397
1398                 else if (t.cs() == "begin")
1399                         parse_environment(p, os, outer, context);
1400
1401                 else if (t.cs() == "end") {
1402                         if (flags & FLAG_END) {
1403                                 // eat environment name
1404                                 string const name = p.getArg('{', '}');
1405                                 if (name != active_environment())
1406                                         cerr << "\\end{" + name + "} does not match \\begin{"
1407                                                 + active_environment() + "}\n";
1408                                 return;
1409                         }
1410                         p.error("found 'end' unexpectedly");
1411                 }
1412
1413                 else if (t.cs() == "item") {
1414                         p.skip_spaces();
1415                         string s;
1416                         bool optarg = false;
1417                         if (p.next_token().character() == '[') {
1418                                 p.get_token(); // eat '['
1419                                 s = parse_text_snippet(p, FLAG_BRACK_LAST,
1420                                                        outer, context);
1421                                 optarg = true;
1422                         }
1423                         context.set_item();
1424                         context.check_layout(os);
1425                         if (context.has_item) {
1426                                 // An item in an unknown list-like environment
1427                                 // FIXME: Do this in check_layout()!
1428                                 context.has_item = false;
1429                                 if (optarg)
1430                                         handle_ert(os, "\\item", context);
1431                                 else
1432                                         handle_ert(os, "\\item ", context);
1433                         }
1434                         if (optarg) {
1435                                 if (context.layout->labeltype != LABEL_MANUAL) {
1436                                         // lyx does not support \item[\mybullet]
1437                                         // in itemize environments
1438                                         handle_ert(os, "[", context);
1439                                         os << s;
1440                                         handle_ert(os, "]", context);
1441                                 } else if (!s.empty()) {
1442                                         // The space is needed to separate the
1443                                         // item from the rest of the sentence.
1444                                         os << s << ' ';
1445                                         eat_whitespace(p, os, context, false);
1446                                 }
1447                         }
1448                 }
1449
1450                 else if (t.cs() == "bibitem") {
1451                         context.set_item();
1452                         context.check_layout(os);
1453                         os << "\\bibitem ";
1454                         os << p.getOpt();
1455                         os << '{' << p.verbatim_item() << '}' << "\n";
1456                 }
1457
1458                 else if(t.cs() == "global") {
1459                         // skip global which can appear in front of e.g. "def"
1460                 }
1461
1462                 else if (t.cs() == "def") {
1463                         context.check_layout(os);
1464                         eat_whitespace(p, os, context, false);
1465                         string name = p.get_token().cs();
1466                         eat_whitespace(p, os, context, false);
1467
1468                         // parameter text
1469                         bool simple = true;
1470                         string paramtext;
1471                         int arity = 0;
1472                         while (p.next_token().cat() != catBegin) {
1473                                 if (p.next_token().cat() == catParameter) {
1474                                         // # found
1475                                         p.get_token();
1476                                         paramtext += "#";
1477
1478                                         // followed by number?
1479                                         if (p.next_token().cat() == catOther) {
1480                                                 char c = p.getChar();
1481                                                 paramtext += c;
1482                                                 // number = current arity + 1?
1483                                                 if (c == arity + '0' + 1)
1484                                                         ++arity;
1485                                                 else
1486                                                         simple = false;
1487                                         } else
1488                                                 paramtext += p.get_token().asString();
1489                                 } else {
1490                                         paramtext += p.get_token().asString();
1491                                         simple = false;
1492                                 }
1493                         }
1494
1495                         // only output simple (i.e. compatible) macro as FormulaMacros
1496                         string ert = "\\def\\" + name + ' ' + paramtext + '{' + p.verbatim_item() + '}';
1497                         if (simple) {
1498                                 context.check_layout(os);
1499                                 begin_inset(os, "FormulaMacro");
1500                                 os << "\n" << ert;
1501                                 end_inset(os);
1502                         } else
1503                                 handle_ert(os, ert, context);
1504                 }
1505
1506                 else if (t.cs() == "noindent") {
1507                         p.skip_spaces();
1508                         context.add_extra_stuff("\\noindent\n");
1509                 }
1510
1511                 else if (t.cs() == "appendix") {
1512                         context.add_extra_stuff("\\start_of_appendix\n");
1513                         // We need to start a new paragraph. Otherwise the
1514                         // appendix in 'bla\appendix\chapter{' would start
1515                         // too late.
1516                         context.new_paragraph(os);
1517                         // We need to make sure that the paragraph is
1518                         // generated even if it is empty. Otherwise the
1519                         // appendix in '\par\appendix\par\chapter{' would
1520                         // start too late.
1521                         context.check_layout(os);
1522                         // FIXME: This is a hack to prevent paragraph
1523                         // deletion if it is empty. Handle this better!
1524                         handle_comment(os,
1525                                 "%dummy comment inserted by tex2lyx to "
1526                                 "ensure that this paragraph is not empty",
1527                                 context);
1528                         // Both measures above may generate an additional
1529                         // empty paragraph, but that does not hurt, because
1530                         // whitespace does not matter here.
1531                         eat_whitespace(p, os, context, true);
1532                 }
1533
1534                 // Must attempt to parse "Section*" before "Section".
1535                 else if ((p.next_token().asInput() == "*") &&
1536                          context.new_layout_allowed &&
1537                          // The single '=' is meant here.
1538                          (newlayout = findLayout(context.textclass, t.cs() + '*')) &&
1539                           newlayout->isCommand()) {
1540                         p.get_token();
1541                         output_command_layout(os, p, outer, context, newlayout);
1542                         p.skip_spaces();
1543                 }
1544
1545                 // The single '=' is meant here.
1546                 else if (context.new_layout_allowed &&
1547                          (newlayout = findLayout(context.textclass, t.cs())) &&
1548                          newlayout->isCommand()) {
1549                         output_command_layout(os, p, outer, context, newlayout);
1550                         p.skip_spaces();
1551                 }
1552
1553                 // Special handling for \caption
1554                 // FIXME: remove this when InsetCaption is supported.
1555                 else if (context.new_layout_allowed &&
1556                          t.cs() == captionlayout()->latexname()) {
1557                         output_command_layout(os, p, outer, context,
1558                                               captionlayout());
1559                         p.skip_spaces();
1560                 }
1561
1562                 else if (t.cs() == "includegraphics") {
1563                         bool const clip = p.next_token().asInput() == "*";
1564                         if (clip)
1565                                 p.get_token();
1566                         map<string, string> opts = split_map(p.getArg('[', ']'));
1567                         if (clip)
1568                                 opts["clip"] = string();
1569                         string name = normalize_filename(p.verbatim_item());
1570
1571                         string const path = getMasterFilePath();
1572                         // We want to preserve relative / absolute filenames,
1573                         // therefore path is only used for testing
1574                         // FIXME UNICODE encoding of name and path may be
1575                         // wrong (makeAbsPath expects utf8)
1576                         if (!makeAbsPath(name, path).exists()) {
1577                                 // The file extension is probably missing.
1578                                 // Now try to find it out.
1579                                 string const dvips_name =
1580                                         find_file(name, path,
1581                                                   known_dvips_graphics_formats);
1582                                 string const pdftex_name =
1583                                         find_file(name, path,
1584                                                   known_pdftex_graphics_formats);
1585                                 if (!dvips_name.empty()) {
1586                                         if (!pdftex_name.empty()) {
1587                                                 cerr << "This file contains the "
1588                                                         "latex snippet\n"
1589                                                         "\"\\includegraphics{"
1590                                                      << name << "}\".\n"
1591                                                         "However, files\n\""
1592                                                      << dvips_name << "\" and\n\""
1593                                                      << pdftex_name << "\"\n"
1594                                                         "both exist, so I had to make a "
1595                                                         "choice and took the first one.\n"
1596                                                         "Please move the unwanted one "
1597                                                         "someplace else and try again\n"
1598                                                         "if my choice was wrong."
1599                                                      << endl;
1600                                         }
1601                                         name = dvips_name;
1602                                 } else if (!pdftex_name.empty())
1603                                         name = pdftex_name;
1604                         }
1605
1606                         // FIXME UNICODE encoding of name and path may be
1607                         // wrong (makeAbsPath expects utf8)
1608                         if (makeAbsPath(name, path).exists())
1609                                 fix_relative_filename(name);
1610                         else
1611                                 cerr << "Warning: Could not find graphics file '"
1612                                      << name << "'." << endl;
1613
1614                         context.check_layout(os);
1615                         begin_inset(os, "Graphics ");
1616                         os << "\n\tfilename " << name << '\n';
1617                         if (opts.find("width") != opts.end())
1618                                 os << "\twidth "
1619                                    << translate_len(opts["width"]) << '\n';
1620                         if (opts.find("height") != opts.end())
1621                                 os << "\theight "
1622                                    << translate_len(opts["height"]) << '\n';
1623                         if (opts.find("scale") != opts.end()) {
1624                                 istringstream iss(opts["scale"]);
1625                                 double val;
1626                                 iss >> val;
1627                                 val = val*100;
1628                                 os << "\tscale " << val << '\n';
1629                         }
1630                         if (opts.find("angle") != opts.end())
1631                                 os << "\trotateAngle "
1632                                    << opts["angle"] << '\n';
1633                         if (opts.find("origin") != opts.end()) {
1634                                 ostringstream ss;
1635                                 string const opt = opts["origin"];
1636                                 if (opt.find('l') != string::npos) ss << "left";
1637                                 if (opt.find('r') != string::npos) ss << "right";
1638                                 if (opt.find('c') != string::npos) ss << "center";
1639                                 if (opt.find('t') != string::npos) ss << "Top";
1640                                 if (opt.find('b') != string::npos) ss << "Bottom";
1641                                 if (opt.find('B') != string::npos) ss << "Baseline";
1642                                 if (!ss.str().empty())
1643                                         os << "\trotateOrigin " << ss.str() << '\n';
1644                                 else
1645                                         cerr << "Warning: Ignoring unknown includegraphics origin argument '" << opt << "'\n";
1646                         }
1647                         if (opts.find("keepaspectratio") != opts.end())
1648                                 os << "\tkeepAspectRatio\n";
1649                         if (opts.find("clip") != opts.end())
1650                                 os << "\tclip\n";
1651                         if (opts.find("draft") != opts.end())
1652                                 os << "\tdraft\n";
1653                         if (opts.find("bb") != opts.end())
1654                                 os << "\tBoundingBox "
1655                                    << opts["bb"] << '\n';
1656                         int numberOfbbOptions = 0;
1657                         if (opts.find("bbllx") != opts.end())
1658                                 numberOfbbOptions++;
1659                         if (opts.find("bblly") != opts.end())
1660                                 numberOfbbOptions++;
1661                         if (opts.find("bburx") != opts.end())
1662                                 numberOfbbOptions++;
1663                         if (opts.find("bbury") != opts.end())
1664                                 numberOfbbOptions++;
1665                         if (numberOfbbOptions == 4)
1666                                 os << "\tBoundingBox "
1667                                    << opts["bbllx"] << " " << opts["bblly"] << " "
1668                                    << opts["bburx"] << " " << opts["bbury"] << '\n';
1669                         else if (numberOfbbOptions > 0)
1670                                 cerr << "Warning: Ignoring incomplete includegraphics boundingbox arguments.\n";
1671                         numberOfbbOptions = 0;
1672                         if (opts.find("natwidth") != opts.end())
1673                                 numberOfbbOptions++;
1674                         if (opts.find("natheight") != opts.end())
1675                                 numberOfbbOptions++;
1676                         if (numberOfbbOptions == 2)
1677                                 os << "\tBoundingBox 0bp 0bp "
1678                                    << opts["natwidth"] << " " << opts["natheight"] << '\n';
1679                         else if (numberOfbbOptions > 0)
1680                                 cerr << "Warning: Ignoring incomplete includegraphics boundingbox arguments.\n";
1681                         ostringstream special;
1682                         if (opts.find("hiresbb") != opts.end())
1683                                 special << "hiresbb,";
1684                         if (opts.find("trim") != opts.end())
1685                                 special << "trim,";
1686                         if (opts.find("viewport") != opts.end())
1687                                 special << "viewport=" << opts["viewport"] << ',';
1688                         if (opts.find("totalheight") != opts.end())
1689                                 special << "totalheight=" << opts["totalheight"] << ',';
1690                         if (opts.find("type") != opts.end())
1691                                 special << "type=" << opts["type"] << ',';
1692                         if (opts.find("ext") != opts.end())
1693                                 special << "ext=" << opts["ext"] << ',';
1694                         if (opts.find("read") != opts.end())
1695                                 special << "read=" << opts["read"] << ',';
1696                         if (opts.find("command") != opts.end())
1697                                 special << "command=" << opts["command"] << ',';
1698                         string s_special = special.str();
1699                         if (!s_special.empty()) {
1700                                 // We had special arguments. Remove the trailing ','.
1701                                 os << "\tspecial " << s_special.substr(0, s_special.size() - 1) << '\n';
1702                         }
1703                         // TODO: Handle the unknown settings better.
1704                         // Warn about invalid options.
1705                         // Check whether some option was given twice.
1706                         end_inset(os);
1707                 }
1708
1709                 else if (t.cs() == "footnote" ||
1710                          (t.cs() == "thanks" && context.layout->intitle)) {
1711                         p.skip_spaces();
1712                         context.check_layout(os);
1713                         begin_inset(os, "Foot\n");
1714                         os << "status collapsed\n\n";
1715                         parse_text_in_inset(p, os, FLAG_ITEM, false, context);
1716                         end_inset(os);
1717                 }
1718
1719                 else if (t.cs() == "marginpar") {
1720                         p.skip_spaces();
1721                         context.check_layout(os);
1722                         begin_inset(os, "Marginal\n");
1723                         os << "status collapsed\n\n";
1724                         parse_text_in_inset(p, os, FLAG_ITEM, false, context);
1725                         end_inset(os);
1726                 }
1727
1728                 else if (t.cs() == "ensuremath") {
1729                         p.skip_spaces();
1730                         context.check_layout(os);
1731                         string const s = p.verbatim_item();
1732                         if (s == "\xb1" || s == "\xb3" || s == "\xb2" || s == "\xb5")
1733                                 os << s;
1734                         else
1735                                 handle_ert(os, "\\ensuremath{" + s + "}",
1736                                            context);
1737                 }
1738
1739                 else if (t.cs() == "hfill") {
1740                         context.check_layout(os);
1741                         os << "\n\\hfill\n";
1742                         skip_braces(p);
1743                         p.skip_spaces();
1744                 }
1745
1746                 else if (t.cs() == "makeindex" || t.cs() == "maketitle") {
1747                         // FIXME: Somehow prevent title layouts if
1748                         // "maketitle" was not found
1749                         p.skip_spaces();
1750                         skip_braces(p); // swallow this
1751                 }
1752
1753                 else if (t.cs() == "tableofcontents") {
1754                         p.skip_spaces();
1755                         context.check_layout(os);
1756                         begin_inset(os, "LatexCommand \\tableofcontents\n");
1757                         end_inset(os);
1758                         skip_braces(p); // swallow this
1759                 }
1760
1761                 else if (t.cs() == "listoffigures") {
1762                         p.skip_spaces();
1763                         context.check_layout(os);
1764                         begin_inset(os, "FloatList figure\n");
1765                         end_inset(os);
1766                         skip_braces(p); // swallow this
1767                 }
1768
1769                 else if (t.cs() == "listoftables") {
1770                         p.skip_spaces();
1771                         context.check_layout(os);
1772                         begin_inset(os, "FloatList table\n");
1773                         end_inset(os);
1774                         skip_braces(p); // swallow this
1775                 }
1776
1777                 else if (t.cs() == "listof") {
1778                         p.skip_spaces(true);
1779                         string const name = p.get_token().asString();
1780                         if (context.textclass.floats().typeExist(name)) {
1781                                 context.check_layout(os);
1782                                 begin_inset(os, "FloatList ");
1783                                 os << name << "\n";
1784                                 end_inset(os);
1785                                 p.get_token(); // swallow second arg
1786                         } else
1787                                 handle_ert(os, "\\listof{" + name + "}", context);
1788                 }
1789
1790                 else if (t.cs() == "textrm")
1791                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1792                                               context, "\\family",
1793                                               context.font.family, "roman");
1794
1795                 else if (t.cs() == "textsf")
1796                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1797                                               context, "\\family",
1798                                               context.font.family, "sans");
1799
1800                 else if (t.cs() == "texttt")
1801                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1802                                               context, "\\family",
1803                                               context.font.family, "typewriter");
1804
1805                 else if (t.cs() == "textmd")
1806                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1807                                               context, "\\series",
1808                                               context.font.series, "medium");
1809
1810                 else if (t.cs() == "textbf")
1811                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1812                                               context, "\\series",
1813                                               context.font.series, "bold");
1814
1815                 else if (t.cs() == "textup")
1816                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1817                                               context, "\\shape",
1818                                               context.font.shape, "up");
1819
1820                 else if (t.cs() == "textit")
1821                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1822                                               context, "\\shape",
1823                                               context.font.shape, "italic");
1824
1825                 else if (t.cs() == "textsl")
1826                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1827                                               context, "\\shape",
1828                                               context.font.shape, "slanted");
1829
1830                 else if (t.cs() == "textsc")
1831                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1832                                               context, "\\shape",
1833                                               context.font.shape, "smallcaps");
1834
1835                 else if (t.cs() == "textnormal" || t.cs() == "normalfont") {
1836                         context.check_layout(os);
1837                         TeXFont oldFont = context.font;
1838                         context.font.init();
1839                         context.font.size = oldFont.size;
1840                         os << "\n\\family " << context.font.family << "\n";
1841                         os << "\n\\series " << context.font.series << "\n";
1842                         os << "\n\\shape " << context.font.shape << "\n";
1843                         if (t.cs() == "textnormal") {
1844                                 parse_text_snippet(p, os, FLAG_ITEM, outer, context);
1845                                 output_font_change(os, context.font, oldFont);
1846                                 context.font = oldFont;
1847                         } else
1848                                 eat_whitespace(p, os, context, false);
1849                 }
1850
1851                 else if (t.cs() == "underbar") {
1852                         // Do NOT handle \underline.
1853                         // \underbar cuts through y, g, q, p etc.,
1854                         // \underline does not.
1855                         context.check_layout(os);
1856                         os << "\n\\bar under\n";
1857                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
1858                         context.check_layout(os);
1859                         os << "\n\\bar default\n";
1860                 }
1861
1862                 else if (t.cs() == "emph" || t.cs() == "noun") {
1863                         context.check_layout(os);
1864                         os << "\n\\" << t.cs() << " on\n";
1865                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
1866                         context.check_layout(os);
1867                         os << "\n\\" << t.cs() << " default\n";
1868                 }
1869
1870                 else if (use_natbib &&
1871                          is_known(t.cs(), known_natbib_commands) &&
1872                          ((t.cs() != "citefullauthor" &&
1873                            t.cs() != "citeyear" &&
1874                            t.cs() != "citeyearpar") ||
1875                           p.next_token().asInput() != "*")) {
1876                         context.check_layout(os);
1877                         // tex                       lyx
1878                         // \citet[before][after]{a}  \citet[after][before]{a}
1879                         // \citet[before][]{a}       \citet[][before]{a}
1880                         // \citet[after]{a}          \citet[after]{a}
1881                         // \citet{a}                 \citet{a}
1882                         string command = '\\' + t.cs();
1883                         if (p.next_token().asInput() == "*") {
1884                                 command += '*';
1885                                 p.get_token();
1886                         }
1887                         if (command == "\\citefullauthor")
1888                                 // alternative name for "\\citeauthor*"
1889                                 command = "\\citeauthor*";
1890
1891                         // text before the citation
1892                         string before;
1893                         // text after the citation
1894                         string after;
1895                         get_cite_arguments(p, true, before, after);
1896
1897                         if (command == "\\cite") {
1898                                 // \cite without optional argument means
1899                                 // \citet, \cite with at least one optional
1900                                 // argument means \citep.
1901                                 if (before.empty() && after.empty())
1902                                         command = "\\citet";
1903                                 else
1904                                         command = "\\citep";
1905                         }
1906                         if (before.empty() && after == "[]")
1907                                 // avoid \citet[]{a}
1908                                 after.erase();
1909                         else if (before == "[]" && after == "[]") {
1910                                 // avoid \citet[][]{a}
1911                                 before.erase();
1912                                 after.erase();
1913                         }
1914                         begin_inset(os, "LatexCommand ");
1915                         os << command << after << before
1916                            << '{' << p.verbatim_item() << "}\n";
1917                         end_inset(os);
1918                 }
1919
1920                 else if (use_jurabib &&
1921                          is_known(t.cs(), known_jurabib_commands)) {
1922                         context.check_layout(os);
1923                         string const command = '\\' + t.cs();
1924                         char argumentOrder = '\0';
1925                         vector<string> const & options = used_packages["jurabib"];
1926                         if (find(options.begin(), options.end(),
1927                                       "natbiborder") != options.end())
1928                                 argumentOrder = 'n';
1929                         else if (find(options.begin(), options.end(),
1930                                            "jurabiborder") != options.end())
1931                                 argumentOrder = 'j';
1932
1933                         // text before the citation
1934                         string before;
1935                         // text after the citation
1936                         string after;
1937                         get_cite_arguments(p, argumentOrder != 'j', before, after);
1938
1939                         string const citation = p.verbatim_item();
1940                         if (!before.empty() && argumentOrder == '\0') {
1941                                 cerr << "Warning: Assuming argument order "
1942                                         "of jurabib version 0.6 for\n'"
1943                                      << command << before << after << '{'
1944                                      << citation << "}'.\n"
1945                                         "Add 'jurabiborder' to the jurabib "
1946                                         "package options if you used an\n"
1947                                         "earlier jurabib version." << endl;
1948                         }
1949                         begin_inset(os, "LatexCommand ");
1950                         os << command << after << before
1951                            << '{' << citation << "}\n";
1952                         end_inset(os);
1953                 }
1954
1955                 else if (is_known(t.cs(), known_latex_commands)) {
1956                         // This needs to be after the check for natbib and
1957                         // jurabib commands, because "cite" has different
1958                         // arguments with natbib and jurabib.
1959                         context.check_layout(os);
1960                         begin_inset(os, "LatexCommand ");
1961                         os << '\\' << t.cs();
1962                         // lyx cannot handle newlines in a latex command
1963                         // FIXME: Move the substitution into parser::getOpt()?
1964                         os << subst(p.getOpt(), "\n", " ");
1965                         os << subst(p.getOpt(), "\n", " ");
1966                         os << '{' << subst(p.verbatim_item(), "\n", " ") << "}\n";
1967                         end_inset(os);
1968                 }
1969
1970                 else if (is_known(t.cs(), known_quotes)) {
1971                         char const * const * where = is_known(t.cs(), known_quotes);
1972                         context.check_layout(os);
1973                         begin_inset(os, "Quotes ");
1974                         os << known_coded_quotes[where - known_quotes];
1975                         end_inset(os);
1976                         // LyX adds {} after the quote, so we have to eat
1977                         // spaces here if there are any before a possible
1978                         // {} pair.
1979                         eat_whitespace(p, os, context, false);
1980                         skip_braces(p);
1981                 }
1982
1983                 else if (is_known(t.cs(), known_sizes) &&
1984                          context.new_layout_allowed) {
1985                         char const * const * where = is_known(t.cs(), known_sizes);
1986                         context.check_layout(os);
1987                         TeXFont const oldFont = context.font;
1988                         context.font.size = known_coded_sizes[where - known_sizes];
1989                         output_font_change(os, oldFont, context.font);
1990                         eat_whitespace(p, os, context, false);
1991                 }
1992
1993                 else if (is_known(t.cs(), known_font_families) &&
1994                          context.new_layout_allowed) {
1995                         char const * const * where =
1996                                 is_known(t.cs(), known_font_families);
1997                         context.check_layout(os);
1998                         TeXFont const oldFont = context.font;
1999                         context.font.family =
2000                                 known_coded_font_families[where - known_font_families];
2001                         output_font_change(os, oldFont, context.font);
2002                         eat_whitespace(p, os, context, false);
2003                 }
2004
2005                 else if (is_known(t.cs(), known_font_series) &&
2006                          context.new_layout_allowed) {
2007                         char const * const * where =
2008                                 is_known(t.cs(), known_font_series);
2009                         context.check_layout(os);
2010                         TeXFont const oldFont = context.font;
2011                         context.font.series =
2012                                 known_coded_font_series[where - known_font_series];
2013                         output_font_change(os, oldFont, context.font);
2014                         eat_whitespace(p, os, context, false);
2015                 }
2016
2017                 else if (is_known(t.cs(), known_font_shapes) &&
2018                          context.new_layout_allowed) {
2019                         char const * const * where =
2020                                 is_known(t.cs(), known_font_shapes);
2021                         context.check_layout(os);
2022                         TeXFont const oldFont = context.font;
2023                         context.font.shape =
2024                                 known_coded_font_shapes[where - known_font_shapes];
2025                         output_font_change(os, oldFont, context.font);
2026                         eat_whitespace(p, os, context, false);
2027                 }
2028                 else if (is_known(t.cs(), known_old_font_families) &&
2029                          context.new_layout_allowed) {
2030                         char const * const * where =
2031                                 is_known(t.cs(), known_old_font_families);
2032                         context.check_layout(os);
2033                         TeXFont const oldFont = context.font;
2034                         context.font.init();
2035                         context.font.size = oldFont.size;
2036                         context.font.family =
2037                                 known_coded_font_families[where - known_old_font_families];
2038                         output_font_change(os, oldFont, context.font);
2039                         eat_whitespace(p, os, context, false);
2040                 }
2041
2042                 else if (is_known(t.cs(), known_old_font_series) &&
2043                          context.new_layout_allowed) {
2044                         char const * const * where =
2045                                 is_known(t.cs(), known_old_font_series);
2046                         context.check_layout(os);
2047                         TeXFont const oldFont = context.font;
2048                         context.font.init();
2049                         context.font.size = oldFont.size;
2050                         context.font.series =
2051                                 known_coded_font_series[where - known_old_font_series];
2052                         output_font_change(os, oldFont, context.font);
2053                         eat_whitespace(p, os, context, false);
2054                 }
2055
2056                 else if (is_known(t.cs(), known_old_font_shapes) &&
2057                          context.new_layout_allowed) {
2058                         char const * const * where =
2059                                 is_known(t.cs(), known_old_font_shapes);
2060                         context.check_layout(os);
2061                         TeXFont const oldFont = context.font;
2062                         context.font.init();
2063                         context.font.size = oldFont.size;
2064                         context.font.shape =
2065                                 known_coded_font_shapes[where - known_old_font_shapes];
2066                         output_font_change(os, oldFont, context.font);
2067                         eat_whitespace(p, os, context, false);
2068                 }
2069
2070                 else if (t.cs() == "selectlanguage") {
2071                         context.check_layout(os);
2072                         // save the language for the case that a \foreignlanguage is used
2073                         selectlang = subst(p.verbatim_item(), "\n", " ");
2074                         os << "\\lang " << selectlang << "\n";
2075
2076                 }
2077
2078                 else if (t.cs() == "foreignlanguage") {
2079                         context.check_layout(os);
2080                         os << "\n\\lang " << subst(p.verbatim_item(), "\n", " ") << "\n";
2081                         os << subst(p.verbatim_item(), "\n", " ");
2082                         // set back to last selectlanguage
2083                         os << "\n\\lang " << selectlang << "\n";
2084                 }
2085
2086                 else if (t.cs() == "inputencoding")
2087                         // write nothing because this is done by LyX using the "\lang"
2088                         // information given by selectlanguage and foreignlanguage
2089                         subst(p.verbatim_item(), "\n", " ");
2090
2091                 else if (t.cs() == "LyX" || t.cs() == "TeX"
2092                          || t.cs() == "LaTeX") {
2093                         context.check_layout(os);
2094                         os << t.cs();
2095                         skip_braces(p); // eat {}
2096                 }
2097
2098                 else if (t.cs() == "LaTeXe") {
2099                         context.check_layout(os);
2100                         os << "LaTeX2e";
2101                         skip_braces(p); // eat {}
2102                 }
2103
2104                 else if (t.cs() == "ldots") {
2105                         context.check_layout(os);
2106                         skip_braces(p);
2107                         os << "\\SpecialChar \\ldots{}\n";
2108                 }
2109
2110                 else if (t.cs() == "lyxarrow") {
2111                         context.check_layout(os);
2112                         os << "\\SpecialChar \\menuseparator\n";
2113                         skip_braces(p);
2114                 }
2115
2116                 else if (t.cs() == "textcompwordmark") {
2117                         context.check_layout(os);
2118                         os << "\\SpecialChar \\textcompwordmark{}\n";
2119                         skip_braces(p);
2120                 }
2121
2122                 else if (t.cs() == "@" && p.next_token().asInput() == ".") {
2123                         context.check_layout(os);
2124                         os << "\\SpecialChar \\@.\n";
2125                         p.get_token();
2126                 }
2127
2128                 else if (t.cs() == "-") {
2129                         context.check_layout(os);
2130                         os << "\\SpecialChar \\-\n";
2131                 }
2132
2133                 else if (t.cs() == "textasciitilde") {
2134                         context.check_layout(os);
2135                         os << '~';
2136                         skip_braces(p);
2137                 }
2138
2139                 else if (t.cs() == "textasciicircum") {
2140                         context.check_layout(os);
2141                         os << '^';
2142                         skip_braces(p);
2143                 }
2144
2145                 else if (t.cs() == "textbackslash") {
2146                         context.check_layout(os);
2147                         os << "\n\\backslash\n";
2148                         skip_braces(p);
2149                 }
2150
2151                 else if (t.cs() == "_" || t.cs() == "&" || t.cs() == "#"
2152                             || t.cs() == "$" || t.cs() == "{" || t.cs() == "}"
2153                             || t.cs() == "%") {
2154                         context.check_layout(os);
2155                         os << t.cs();
2156                 }
2157
2158                 else if (t.cs() == "char") {
2159                         context.check_layout(os);
2160                         if (p.next_token().character() == '`') {
2161                                 p.get_token();
2162                                 if (p.next_token().cs() == "\"") {
2163                                         p.get_token();
2164                                         os << '"';
2165                                         skip_braces(p);
2166                                 } else {
2167                                         handle_ert(os, "\\char`", context);
2168                                 }
2169                         } else {
2170                                 handle_ert(os, "\\char", context);
2171                         }
2172                 }
2173
2174                 else if (t.cs() == "verb") {
2175                         context.check_layout(os);
2176                         char const delimiter = p.next_token().character();
2177                         string const arg = p.getArg(delimiter, delimiter);
2178                         ostringstream oss;
2179                         oss << "\\verb" << delimiter << arg << delimiter;
2180                         handle_ert(os, oss.str(), context);
2181                 }
2182
2183                 else if (t.cs() == "\"") {
2184                         context.check_layout(os);
2185                         string const name = p.verbatim_item();
2186                              if (name == "a") os << '\xe4';
2187                         else if (name == "o") os << '\xf6';
2188                         else if (name == "u") os << '\xfc';
2189                         else if (name == "A") os << '\xc4';
2190                         else if (name == "O") os << '\xd6';
2191                         else if (name == "U") os << '\xdc';
2192                         else handle_ert(os, "\"{" + name + "}", context);
2193                 }
2194
2195                 // Problem: \= creates a tabstop inside the tabbing environment
2196                 // and else an accent. In the latter case we really would want
2197                 // \={o} instead of \= o.
2198                 else if (t.cs() == "=" && (flags & FLAG_TABBING))
2199                         handle_ert(os, t.asInput(), context);
2200
2201                 else if (t.cs() == "H" || t.cs() == "c" || t.cs() == "^"
2202                          || t.cs() == "'" || t.cs() == "`"
2203                          || t.cs() == "~" || t.cs() == "." || t.cs() == "=") {
2204                         // we need the trim as the LyX parser chokes on such spaces
2205                         // The argument of InsetLatexAccent is parsed as a
2206                         // subset of LaTeX, so don't parse anything here,
2207                         // but use the raw argument.
2208                         // Otherwise we would convert \~{\i} wrongly.
2209                         // This will of course not translate \~{\ss} to \~{ß},
2210                         // but that does at least compile and does only look
2211                         // strange on screen.
2212                         context.check_layout(os);
2213                         os << "\\i \\" << t.cs() << "{"
2214                            << trim(p.verbatim_item(), " ")
2215                            << "}\n";
2216                 }
2217
2218                 else if (t.cs() == "ss") {
2219                         context.check_layout(os);
2220                         os << "\xdf";
2221                         skip_braces(p); // eat {}
2222                 }
2223
2224                 else if (t.cs() == "i" || t.cs() == "j" || t.cs() == "l" ||
2225                          t.cs() == "L") {
2226                         context.check_layout(os);
2227                         os << "\\i \\" << t.cs() << "{}\n";
2228                         skip_braces(p); // eat {}
2229                 }
2230
2231                 else if (t.cs() == "\\") {
2232                         context.check_layout(os);
2233                         string const next = p.next_token().asInput();
2234                         if (next == "[")
2235                                 handle_ert(os, "\\\\" + p.getOpt(), context);
2236                         else if (next == "*") {
2237                                 p.get_token();
2238                                 handle_ert(os, "\\\\*" + p.getOpt(), context);
2239                         }
2240                         else {
2241                                 os << "\n\\newline\n";
2242                         }
2243                 }
2244
2245                 else if (t.cs() == "newline" ||
2246                         t.cs() == "linebreak") {
2247                         context.check_layout(os);
2248                         os << "\n\\" << t.cs() << "\n";
2249                         skip_braces(p); // eat {}
2250                 }
2251
2252                 else if (t.cs() == "href") {
2253                         context.check_layout(os);
2254                         begin_inset(os, "CommandInset ");
2255                         os << t.cs() << "\n";
2256                         os << "LatexCommand " << t.cs() << "\n";
2257                         bool erase = false;
2258                         size_t pos;
2259                         // the first argument is "type:target", "type:" is optional
2260                         // the second argument the name
2261                         string href_target = subst(p.verbatim_item(), "\n", " ");
2262                         string href_name = subst(p.verbatim_item(), "\n", " ");
2263                         string href_type;
2264                         // serach for the ":" to divide type from target
2265                         if ((pos = href_target.find(":", 0)) != string::npos){
2266                                 href_type = href_target;
2267                                 href_type.erase(pos + 1, href_type.length());
2268                                 href_target.erase(0, pos + 1);
2269                             erase = true;
2270                         }
2271                         os << "name " << '"' << href_name << '"' << "\n";
2272                         os << "target " << '"' << href_target << '"' << "\n";
2273                         if(erase)
2274                                 os << "type " << '"' << href_type << '"' << "\n";
2275                         end_inset(os);
2276                 }
2277
2278                 else if (t.cs() == "input" || t.cs() == "include"
2279                          || t.cs() == "verbatiminput") {
2280                         string name = '\\' + t.cs();
2281                         if (t.cs() == "verbatiminput"
2282                             && p.next_token().asInput() == "*")
2283                                 name += p.get_token().asInput();
2284                         context.check_layout(os);
2285                         begin_inset(os, "Include ");
2286                         string filename(normalize_filename(p.getArg('{', '}')));
2287                         string const path = getMasterFilePath();
2288                         // We want to preserve relative / absolute filenames,
2289                         // therefore path is only used for testing
2290                         // FIXME UNICODE encoding of filename and path may be
2291                         // wrong (makeAbsPath expects utf8)
2292                         if ((t.cs() == "include" || t.cs() == "input") &&
2293                             !makeAbsPath(filename, path).exists()) {
2294                                 // The file extension is probably missing.
2295                                 // Now try to find it out.
2296                                 string const tex_name =
2297                                         find_file(filename, path,
2298                                                   known_tex_extensions);
2299                                 if (!tex_name.empty())
2300                                         filename = tex_name;
2301                         }
2302                         // FIXME UNICODE encoding of filename and path may be
2303                         // wrong (makeAbsPath expects utf8)
2304                         if (makeAbsPath(filename, path).exists()) {
2305                                 string const abstexname =
2306                                         makeAbsPath(filename, path).absFilename();
2307                                 string const abslyxname =
2308                                         changeExtension(abstexname, ".lyx");
2309                                 fix_relative_filename(filename);
2310                                 string const lyxname =
2311                                         changeExtension(filename, ".lyx");
2312                                 if (t.cs() != "verbatiminput" &&
2313                                     tex2lyx(abstexname, FileName(abslyxname))) {
2314                                         os << name << '{' << lyxname << "}\n";
2315                                 } else {
2316                                         os << name << '{' << filename << "}\n";
2317                                 }
2318                         } else {
2319                                 cerr << "Warning: Could not find included file '"
2320                                      << filename << "'." << endl;
2321                                 os << name << '{' << filename << "}\n";
2322                         }
2323                         os << "preview false\n";
2324                         end_inset(os);
2325                 }
2326
2327                 else if (t.cs() == "bibliographystyle") {
2328                         // store new bibliographystyle
2329                         bibliographystyle = p.verbatim_item();
2330                         // output new bibliographystyle.
2331                         // This is only necessary if used in some other macro than \bibliography.
2332                         handle_ert(os, "\\bibliographystyle{" + bibliographystyle + "}", context);
2333                 }
2334
2335                 else if (t.cs() == "bibliography") {
2336                         context.check_layout(os);
2337                         begin_inset(os, "LatexCommand ");
2338                         os << "\\bibtex";
2339                         // Do we have a bibliographystyle set?
2340                         if (!bibliographystyle.empty()) {
2341                                 os << '[' << bibliographystyle << ']';
2342                         }
2343                         os << '{' << p.verbatim_item() << "}\n";
2344                         end_inset(os);
2345                 }
2346
2347                 else if (t.cs() == "parbox")
2348                         parse_box(p, os, FLAG_ITEM, outer, context, true);
2349
2350                 else if (t.cs() == "smallskip" ||
2351                          t.cs() == "medskip" ||
2352                          t.cs() == "bigskip" ||
2353                          t.cs() == "vfill") {
2354                         context.check_layout(os);
2355                         begin_inset(os, "VSpace ");
2356                         os << t.cs();
2357                         end_inset(os);
2358                         skip_braces(p);
2359                 }
2360
2361                 else if (is_known(t.cs(), known_spaces)) {
2362                         char const * const * where = is_known(t.cs(), known_spaces);
2363                         context.check_layout(os);
2364                         begin_inset(os, "InsetSpace ");
2365                         os << '\\' << known_coded_spaces[where - known_spaces]
2366                            << '\n';
2367                         // LaTeX swallows whitespace after all spaces except
2368                         // "\\,". We have to do that here, too, because LyX
2369                         // adds "{}" which would make the spaces significant.
2370                         if (t.cs() !=  ",")
2371                                 eat_whitespace(p, os, context, false);
2372                         // LyX adds "{}" after all spaces except "\\ " and
2373                         // "\\,", so we have to remove "{}".
2374                         // "\\,{}" is equivalent to "\\," in LaTeX, so we
2375                         // remove the braces after "\\,", too.
2376                         if (t.cs() != " ")
2377                                 skip_braces(p);
2378                 }
2379
2380                 else if (t.cs() == "newpage" ||
2381                         t.cs() == "pagebreak" ||
2382                         t.cs() == "clearpage" ||
2383                         t.cs() == "cleardoublepage") {
2384                         context.check_layout(os);
2385                         os << "\n\\" << t.cs() << "\n";
2386                         skip_braces(p); // eat {}
2387                 }
2388
2389                 else if (t.cs() == "newcommand" ||
2390                          t.cs() == "providecommand" ||
2391                          t.cs() == "renewcommand" ||
2392                          t.cs() == "newlyxcommand") {
2393                         // these could be handled by parse_command(), but
2394                         // we need to call add_known_command() here.
2395                         string name = t.asInput();
2396                         if (p.next_token().asInput() == "*") {
2397                                 // Starred form. Eat '*'
2398                                 p.get_token();
2399                                 name += '*';
2400                         }
2401                         string const command = p.verbatim_item();
2402                         string const opt1 = p.getOpt();
2403                         string optionals;
2404                         unsigned optionalsNum = 0;
2405                         while (true) {
2406                                 string const opt = p.getFullOpt();
2407                                 if (opt.empty())
2408                                         break;
2409                                 optionalsNum++;
2410                                 optionals += opt;
2411                         }
2412                         add_known_command(command, opt1, optionalsNum);
2413                         string const ert = name + '{' + command + '}' + opt1
2414                                 + optionals + '{' + p.verbatim_item() + '}';
2415
2416                         context.check_layout(os);
2417                         begin_inset(os, "FormulaMacro");
2418                         os << "\n" << ert;
2419                         end_inset(os);
2420                 }
2421
2422                 else if (t.cs() == "newcommandx" ||
2423                          t.cs() == "renewcommandx") {
2424                         // \newcommandx{\foo}[2][usedefault, addprefix=\global,1=default]{#1,#2}
2425
2426                         // get command name
2427                         string command;
2428                         if (p.next_token().cat() == catBegin)
2429                                 command = p.verbatim_item();
2430                         else
2431                                 command = "\\" + p.get_token().cs();
2432
2433                         // get arity, we do not check that it fits to the given
2434                         // optional parameters here.
2435                         string const opt1 = p.getOpt();
2436
2437                         // get options and default values for optional parameters
2438                         std::vector<string> optionalValues;
2439                         int optionalsNum = 0;
2440                         if (p.next_token().character() == '[') {
2441                                 // skip '['
2442                                 p.get_token();
2443
2444                                 // handle 'opt=value' options, separated by ','.
2445                                 eat_whitespace(p, os, context, false);
2446                                 while (p.next_token().character() != ']' && p.good()) {
2447                                         char_type nextc = p.next_token().character();
2448                                         if (nextc >= '1' && nextc <= '9') {
2449                                                 // optional value -> get parameter number
2450                                                 int n = p.getChar() - '0';
2451
2452                                                 // skip '='
2453                                                 if (p.next_token().character() != '=') {
2454                                                         cerr << "'=' expected after numeral option of \\newcommandx" << std::endl;
2455                                                         // try to find ] or ,
2456                                                         while (p.next_token().character() != ','
2457                                                                && p.next_token().character() != ']')
2458                                                                 p.get_token();
2459                                                         continue;
2460                                                 } else
2461                                                         p.get_token();
2462
2463                                                 // get value
2464                                                 optionalValues.resize(max(size_t(n), optionalValues.size()));
2465                                                 optionalValues[n - 1].clear();
2466                                                 while (p.next_token().character() != ']'
2467                                                        && p.next_token().character() != ',')
2468                                                         optionalValues[n - 1] += p.verbatim_item();
2469                                                 optionalsNum = max(n, optionalsNum);
2470                                         } else if (p.next_token().cat() == catLetter) {
2471                                                 // we in fact ignore every non-optional
2472                                                 // parameters
2473
2474                                                 // get option name
2475                                                 docstring opt;
2476                                                 while (p.next_token().cat() == catLetter)
2477                                                         opt += p.getChar();
2478
2479                                                 // value?
2480                                                 eat_whitespace(p, os, context, false);
2481                                                 if (p.next_token().character() == '=') {
2482                                                         p.get_token();
2483                                                         while (p.next_token().character() != ']'
2484                                                                && p.next_token().character() != ',')
2485                                                                 p.verbatim_item();
2486                                                 }
2487                                         } else
2488                                                 return;
2489
2490                                         // skip komma
2491                                         eat_whitespace(p, os, context, false);
2492                                         if (p.next_token().character() == ',') {
2493                                                 p.getChar();
2494                                                 eat_whitespace(p, os, context, false);
2495                                         } else if (p.next_token().character() != ']')
2496                                                 continue;
2497                                 }
2498
2499                                 // skip ']'
2500                                 p.get_token();
2501                         }
2502
2503                         // concat the default values to the optionals string
2504                         string optionals;
2505                         for (unsigned i = 0; i < optionalValues.size(); ++i)
2506                                 optionals += "[" + optionalValues[i] + "]";
2507
2508                         // register and output command
2509                         add_known_command(command, opt1, optionalsNum);
2510                         string const ert = "\\newcommand{" + command + '}' + opt1
2511                         + optionals + '{' + p.verbatim_item() + '}';
2512
2513                         context.check_layout(os);
2514                         begin_inset(os, "FormulaMacro");
2515                         os << "\n" << ert;
2516                         end_inset(os);
2517                 }
2518
2519                 else if (t.cs() == "vspace") {
2520                         bool starred = false;
2521                         if (p.next_token().asInput() == "*") {
2522                                 p.get_token();
2523                                 starred = true;
2524                         }
2525                         string const length = p.verbatim_item();
2526                         string unit;
2527                         string valstring;
2528                         bool valid = splitLatexLength(length, valstring, unit);
2529                         bool known_vspace = false;
2530                         bool known_unit = false;
2531                         double value;
2532                         if (valid) {
2533                                 istringstream iss(valstring);
2534                                 iss >> value;
2535                                 if (value == 1.0) {
2536                                         if (unit == "\\smallskipamount") {
2537                                                 unit = "smallskip";
2538                                                 known_vspace = true;
2539                                         } else if (unit == "\\medskipamount") {
2540                                                 unit = "medskip";
2541                                                 known_vspace = true;
2542                                         } else if (unit == "\\bigskipamount") {
2543                                                 unit = "bigskip";
2544                                                 known_vspace = true;
2545                                         } else if (unit == "\\fill") {
2546                                                 unit = "vfill";
2547                                                 known_vspace = true;
2548                                         }
2549                                 }
2550                                 if (!known_vspace) {
2551                                         switch (unitFromString(unit)) {
2552                                         case Length::SP:
2553                                         case Length::PT:
2554                                         case Length::BP:
2555                                         case Length::DD:
2556                                         case Length::MM:
2557                                         case Length::PC:
2558                                         case Length::CC:
2559                                         case Length::CM:
2560                                         case Length::IN:
2561                                         case Length::EX:
2562                                         case Length::EM:
2563                                         case Length::MU:
2564                                                 known_unit = true;
2565                                                 break;
2566                                         default:
2567                                                 break;
2568                                         }
2569                                 }
2570                         }
2571
2572                         if (known_unit || known_vspace) {
2573                                 // Literal length or known variable
2574                                 context.check_layout(os);
2575                                 begin_inset(os, "VSpace ");
2576                                 if (known_unit)
2577                                         os << value;
2578                                 os << unit;
2579                                 if (starred)
2580                                         os << '*';
2581                                 end_inset(os);
2582                         } else {
2583                                 // LyX can't handle other length variables in Inset VSpace
2584                                 string name = t.asInput();
2585                                 if (starred)
2586                                         name += '*';
2587                                 if (valid) {
2588                                         if (value == 1.0)
2589                                                 handle_ert(os, name + '{' + unit + '}', context);
2590                                         else if (value == -1.0)
2591                                                 handle_ert(os, name + "{-" + unit + '}', context);
2592                                         else
2593                                                 handle_ert(os, name + '{' + valstring + unit + '}', context);
2594                                 } else
2595                                         handle_ert(os, name + '{' + length + '}', context);
2596                         }
2597                 }
2598
2599                 else {
2600                         //cerr << "#: " << t << " mode: " << mode << endl;
2601                         // heuristic: read up to next non-nested space
2602                         /*
2603                         string s = t.asInput();
2604                         string z = p.verbatim_item();
2605                         while (p.good() && z != " " && z.size()) {
2606                                 //cerr << "read: " << z << endl;
2607                                 s += z;
2608                                 z = p.verbatim_item();
2609                         }
2610                         cerr << "found ERT: " << s << endl;
2611                         handle_ert(os, s + ' ', context);
2612                         */
2613                         string name = t.asInput();
2614                         if (p.next_token().asInput() == "*") {
2615                                 // Starred commands like \vspace*{}
2616                                 p.get_token();                          // Eat '*'
2617                                 name += '*';
2618                         }
2619                         if (! parse_command(name, p, os, outer, context))
2620                                 handle_ert(os, name, context);
2621                 }
2622
2623                 if (flags & FLAG_LEAVE) {
2624                         flags &= ~FLAG_LEAVE;
2625                         break;
2626                 }
2627         }
2628 }
2629
2630 // }])
2631
2632
2633 } // namespace lyx