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 "Encoding.h"
  21 #include "FloatList.h"
  22 #include "LaTeXPackages.h"
  23 #include "Layout.h"
  24 #include "Length.h"
  25 #include "Preamble.h"
  26
  27 #include "support/lassert.h"
  28 #include "support/convert.h"
  29 #include "support/FileName.h"
  30 #include "support/filetools.h"
  31 #include "support/lstrings.h"
  32 #include "support/lyxtime.h"
  33
  34 #include <algorithm>
  35 #include <iostream>
  36 #include <map>
  37 #include <sstream>
  38 #include <vector>
  39
  40 using namespace std;
  41 using namespace lyx::support;
  42
  43 namespace lyx {
  44
  45
  46 void parse_text_in_inset(Parser & p, ostream & os, unsigned flags, bool outer,
  47                 Context const & context, InsetLayout const * layout)
  48 {
  49         bool const forcePlainLayout =
  50                 layout ? layout->forcePlainLayout() : false;
  51         Context newcontext(true, context.textclass);
  52         if (forcePlainLayout)
  53                 newcontext.layout = &context.textclass.plainLayout();
  54         else
  55                 newcontext.font = context.font;
  56         parse_text(p, os, flags, outer, newcontext);
  57         newcontext.check_end_layout(os);
  58 }
  59
  60
  61 namespace {
  62
  63 void parse_text_in_inset(Parser & p, ostream & os, unsigned flags, bool outer,
  64                 Context const & context, string const & name)
  65 {
  66         InsetLayout const * layout = 0;
  67         DocumentClass::InsetLayouts::const_iterator it =
  68                 context.textclass.insetLayouts().find(from_ascii(name));
  69         if (it != context.textclass.insetLayouts().end())
  70                 layout = &(it->second);
  71         parse_text_in_inset(p, os, flags, outer, context, layout);
  72 }
  73
  74 /// parses a paragraph snippet, useful for example for \\emph{...}
  75 void parse_text_snippet(Parser & p, ostream & os, unsigned flags, bool outer,
  76                 Context & context)
  77 {
  78         Context newcontext(context);
  79         // Don't inherit the paragraph-level extra stuff
  80         newcontext.par_extra_stuff.clear();
  81         parse_text(p, os, flags, outer, newcontext);
  82         // Make sure that we don't create invalid .lyx files
  83         context.need_layout = newcontext.need_layout;
  84         context.need_end_layout = newcontext.need_end_layout;
  85 }
  86
  87
  88 /*!
  89  * Thin wrapper around parse_text_snippet() using a string.
  90  *
  91  * We completely ignore \c context.need_layout and \c context.need_end_layout,
  92  * because our return value is not used directly (otherwise the stream version
  93  * of parse_text_snippet() could be used). That means that the caller needs
  94  * to do layout management manually.
  95  * This is intended to parse text that does not create any layout changes.
  96  */
  97 string parse_text_snippet(Parser & p, unsigned flags, const bool outer,
  98                   Context & context)
  99 {
 100         Context newcontext(context);
 101         newcontext.need_layout = false;
 102         newcontext.need_end_layout = false;
 103         newcontext.new_layout_allowed = false;
 104         // Avoid warning by Context::~Context()
 105         newcontext.par_extra_stuff.clear();
 106         ostringstream os;
 107         parse_text_snippet(p, os, flags, outer, newcontext);
 108         return os.str();
 109 }
 110
 111
 112 char const * const known_ref_commands[] = { "ref", "pageref", "vref",
 113  "vpageref", "prettyref", "eqref", 0 };
 114
 115 char const * const known_coded_ref_commands[] = { "ref", "pageref", "vref",
 116  "vpageref", "formatted", "eqref", 0 };
 117
 118 /*!
 119  * natbib commands.
 120  * The starred forms are also known except for "citefullauthor",
 121  * "citeyear" and "citeyearpar".
 122  */
 123 char const * const known_natbib_commands[] = { "cite", "citet", "citep",
 124 "citealt", "citealp", "citeauthor", "citeyear", "citeyearpar",
 125 "citefullauthor", "Citet", "Citep", "Citealt", "Citealp", "Citeauthor", 0 };
 126
 127 /*!
 128  * jurabib commands.
 129  * No starred form other than "cite*" known.
 130  */
 131 char const * const known_jurabib_commands[] = { "cite", "citet", "citep",
 132 "citealt", "citealp", "citeauthor", "citeyear", "citeyearpar",
 133 // jurabib commands not (yet) supported by LyX:
 134 // "fullcite",
 135 // "footcite", "footcitet", "footcitep", "footcitealt", "footcitealp",
 136 // "footciteauthor", "footciteyear", "footciteyearpar",
 137 "citefield", "citetitle", 0 };
 138
 139 /// LaTeX names for quotes
 140 char const * const known_quotes[] = { "dq", "guillemotleft", "flqq", "og",
 141 "guillemotright", "frqq", "fg", "glq", "glqq", "textquoteleft", "grq", "grqq",
 142 "quotedblbase", "textquotedblleft", "quotesinglbase", "textquoteright", "flq",
 143 "guilsinglleft", "frq", "guilsinglright", 0};
 144
 145 /// the same as known_quotes with .lyx names
 146 char const * const known_coded_quotes[] = { "prd", "ard", "ard", "ard",
 147 "ald", "ald", "ald", "gls", "gld", "els", "els", "grd",
 148 "gld", "grd", "gls", "ers", "fls",
 149 "fls", "frs", "frs", 0};
 150
 151 /// LaTeX names for font sizes
 152 char const * const known_sizes[] = { "tiny", "scriptsize", "footnotesize",
 153 "small", "normalsize", "large", "Large", "LARGE", "huge", "Huge", 0};
 154
 155 /// the same as known_sizes with .lyx names
 156 char const * const known_coded_sizes[] = { "tiny", "scriptsize", "footnotesize",
 157 "small", "normal", "large", "larger", "largest", "huge", "giant", 0};
 158
 159 /// LaTeX 2.09 names for font families
 160 char const * const known_old_font_families[] = { "rm", "sf", "tt", 0};
 161
 162 /// LaTeX names for font families
 163 char const * const known_font_families[] = { "rmfamily", "sffamily",
 164 "ttfamily", 0};
 165
 166 /// LaTeX names for font family changing commands
 167 char const * const known_text_font_families[] = { "textrm", "textsf",
 168 "texttt", 0};
 169
 170 /// The same as known_old_font_families, known_font_families and
 171 /// known_text_font_families with .lyx names
 172 char const * const known_coded_font_families[] = { "roman", "sans",
 173 "typewriter", 0};
 174
 175 /// LaTeX 2.09 names for font series
 176 char const * const known_old_font_series[] = { "bf", 0};
 177
 178 /// LaTeX names for font series
 179 char const * const known_font_series[] = { "bfseries", "mdseries", 0};
 180
 181 /// LaTeX names for font series changing commands
 182 char const * const known_text_font_series[] = { "textbf", "textmd", 0};
 183
 184 /// The same as known_old_font_series, known_font_series and
 185 /// known_text_font_series with .lyx names
 186 char const * const known_coded_font_series[] = { "bold", "medium", 0};
 187
 188 /// LaTeX 2.09 names for font shapes
 189 char const * const known_old_font_shapes[] = { "it", "sl", "sc", 0};
 190
 191 /// LaTeX names for font shapes
 192 char const * const known_font_shapes[] = { "itshape", "slshape", "scshape",
 193 "upshape", 0};
 194
 195 /// LaTeX names for font shape changing commands
 196 char const * const known_text_font_shapes[] = { "textit", "textsl", "textsc",
 197 "textup", 0};
 198
 199 /// The same as known_old_font_shapes, known_font_shapes and
 200 /// known_text_font_shapes with .lyx names
 201 char const * const known_coded_font_shapes[] = { "italic", "slanted",
 202 "smallcaps", "up", 0};
 203
 204 /// Known special characters which need skip_spaces_braces() afterwards
 205 char const * const known_special_chars[] = {"ldots", "lyxarrow",
 206 "textcompwordmark", "slash", 0};
 207
 208 /// the same as known_special_chars with .lyx names
 209 char const * const known_coded_special_chars[] = {"ldots{}", "menuseparator",
 210 "textcompwordmark{}", "slash{}", 0};
 211
 212 /*!
 213  * Graphics file extensions known by the dvips driver of the graphics package.
 214  * These extensions are used to complete the filename of an included
 215  * graphics file if it does not contain an extension.
 216  * The order must be the same that latex uses to find a file, because we
 217  * will use the first extension that matches.
 218  * This is only an approximation for the common cases. If we would want to
 219  * do it right in all cases, we would need to know which graphics driver is
 220  * used and know the extensions of every driver of the graphics package.
 221  */
 222 char const * const known_dvips_graphics_formats[] = {"eps", "ps", "eps.gz",
 223 "ps.gz", "eps.Z", "ps.Z", 0};
 224
 225 /*!
 226  * Graphics file extensions known by the pdftex driver of the graphics package.
 227  * \sa known_dvips_graphics_formats
 228  */
 229 char const * const known_pdftex_graphics_formats[] = {"png", "pdf", "jpg",
 230 "mps", "tif", 0};
 231
 232 /*!
 233  * Known file extensions for TeX files as used by \\include.
 234  */
 235 char const * const known_tex_extensions[] = {"tex", 0};
 236
 237 /// spaces known by InsetSpace
 238 char const * const known_spaces[] = { " ", "space", ",",
 239 "thinspace", "quad", "qquad", "enspace", "enskip",
 240 "negthinspace", "negmedspace", "negthickspace", "textvisiblespace",
 241 "hfill", "dotfill", "hrulefill", "leftarrowfill", "rightarrowfill",
 242 "upbracefill", "downbracefill", 0};
 243
 244 /// the same as known_spaces with .lyx names
 245 char const * const known_coded_spaces[] = { "space{}", "space{}",
 246 "thinspace{}", "thinspace{}", "quad{}", "qquad{}", "enspace{}", "enskip{}",
 247 "negthinspace{}", "negmedspace{}", "negthickspace{}", "textvisiblespace{}",
 248 "hfill{}", "dotfill{}", "hrulefill{}", "leftarrowfill{}", "rightarrowfill{}",
 249 "upbracefill{}", "downbracefill{}", 0};
 250
 251 /// These are translated by LyX to commands like "\\LyX{}", so we have to put
 252 /// them in ERT. "LaTeXe" must come before "LaTeX"!
 253 char const * const known_phrases[] = {"LyX", "TeX", "LaTeXe", "LaTeX", 0};
 254 char const * const known_coded_phrases[] = {"LyX", "TeX", "LaTeX2e", "LaTeX", 0};
 255 int const known_phrase_lengths[] = {3, 5, 7, 0};
 256
 257 // string to store the float type to be able to determine the type of subfloats
 258 string float_type = "";
 259
 260
 261 /// splits "x=z, y=b" into a map and an ordered keyword vector
 262 void split_map(string const & s, map<string, string> & res, vector<string> & keys)
 263 {
 264         vector<string> v;
 265         split(s, v);
 266         res.clear();
 267         keys.resize(v.size());
 268         for (size_t i = 0; i < v.size(); ++i) {
 269                 size_t const pos   = v[i].find('=');
 270                 string const index = trimSpaceAndEol(v[i].substr(0, pos));
 271                 string const value = trimSpaceAndEol(v[i].substr(pos + 1, string::npos));
 272                 res[index] = value;
 273                 keys[i] = index;
 274         }
 275 }
 276
 277
 278 /*!
 279  * Split a LaTeX length into value and unit.
 280  * The latter can be a real unit like "pt", or a latex length variable
 281  * like "\textwidth". The unit may contain additional stuff like glue
 282  * lengths, but we don't care, because such lengths are ERT anyway.
 283  * \returns true if \p value and \p unit are valid.
 284  */
 285 bool splitLatexLength(string const & len, string & value, string & unit)
 286 {
 287         if (len.empty())
 288                 return false;
 289         const string::size_type i = len.find_first_not_of(" -+0123456789.,");
 290         //'4,5' is a valid LaTeX length number. Change it to '4.5'
 291         string const length = subst(len, ',', '.');
 292         if (i == string::npos)
 293                 return false;
 294         if (i == 0) {
 295                 if (len[0] == '\\') {
 296                         // We had something like \textwidth without a factor
 297                         value = "1.0";
 298                 } else {
 299                         return false;
 300                 }
 301         } else {
 302                 value = trimSpaceAndEol(string(length, 0, i));
 303         }
 304         if (value == "-")
 305                 value = "-1.0";
 306         // 'cM' is a valid LaTeX length unit. Change it to 'cm'
 307         if (contains(len, '\\'))
 308                 unit = trimSpaceAndEol(string(len, i));
 309         else
 310                 unit = ascii_lowercase(trimSpaceAndEol(string(len, i)));
 311         return true;
 312 }
 313
 314
 315 /// A simple function to translate a latex length to something LyX can
 316 /// understand. Not perfect, but rather best-effort.
 317 bool translate_len(string const & length, string & valstring, string & unit)
 318 {
 319         if (!splitLatexLength(length, valstring, unit))
 320                 return false;
 321         // LyX uses percent values
 322         double value;
 323         istringstream iss(valstring);
 324         iss >> value;
 325         value *= 100;
 326         ostringstream oss;
 327         oss << value;
 328         string const percentval = oss.str();
 329         // a normal length
 330         if (unit.empty() || unit[0] != '\\')
 331                 return true;
 332         string::size_type const i = unit.find(' ');
 333         string const endlen = (i == string::npos) ? string() : string(unit, i);
 334         if (unit == "\\textwidth") {
 335                 valstring = percentval;
 336                 unit = "text%" + endlen;
 337         } else if (unit == "\\columnwidth") {
 338                 valstring = percentval;
 339                 unit = "col%" + endlen;
 340         } else if (unit == "\\paperwidth") {
 341                 valstring = percentval;
 342                 unit = "page%" + endlen;
 343         } else if (unit == "\\linewidth") {
 344                 valstring = percentval;
 345                 unit = "line%" + endlen;
 346         } else if (unit == "\\paperheight") {
 347                 valstring = percentval;
 348                 unit = "pheight%" + endlen;
 349         } else if (unit == "\\textheight") {
 350                 valstring = percentval;
 351                 unit = "theight%" + endlen;
 352         }
 353         return true;
 354 }
 355
 356 }
 357
 358
 359 string translate_len(string const & length)
 360 {
 361         string unit;
 362         string value;
 363         if (translate_len(length, value, unit))
 364                 return value + unit;
 365         // If the input is invalid, return what we have.
 366         return length;
 367 }
 368
 369
 370 namespace {
 371
 372 /*!
 373  * Translates a LaTeX length into \p value, \p unit and
 374  * \p special parts suitable for a box inset.
 375  * The difference from translate_len() is that a box inset knows about
 376  * some special "units" that are stored in \p special.
 377  */
 378 void translate_box_len(string const & length, string & value, string & unit, string & special)
 379 {
 380         if (translate_len(length, value, unit)) {
 381                 if (unit == "\\height" || unit == "\\depth" ||
 382                     unit == "\\totalheight" || unit == "\\width") {
 383                         special = unit.substr(1);
 384                         // The unit is not used, but LyX requires a dummy setting
 385                         unit = "in";
 386                 } else
 387                         special = "none";
 388         } else {
 389                 value.clear();
 390                 unit = length;
 391                 special = "none";
 392         }
 393 }
 394
 395
 396 /*!
 397  * Find a file with basename \p name in path \p path and an extension
 398  * in \p extensions.
 399  */
 400 string find_file(string const & name, string const & path,
 401                  char const * const * extensions)
 402 {
 403         for (char const * const * what = extensions; *what; ++what) {
 404                 string const trial = addExtension(name, *what);
 405                 if (makeAbsPath(trial, path).exists())
 406                         return trial;
 407         }
 408         return string();
 409 }
 410
 411
 412 void begin_inset(ostream & os, string const & name)
 413 {
 414         os << "\n\\begin_inset " << name;
 415 }
 416
 417
 418 void begin_command_inset(ostream & os, string const & name,
 419                          string const & latexname)
 420 {
 421         begin_inset(os, "CommandInset ");
 422         os << name << "\nLatexCommand " << latexname << '\n';
 423 }
 424
 425
 426 void end_inset(ostream & os)
 427 {
 428         os << "\n\\end_inset\n\n";
 429 }
 430
 431
 432 bool skip_braces(Parser & p)
 433 {
 434         if (p.next_token().cat() != catBegin)
 435                 return false;
 436         p.get_token();
 437         if (p.next_token().cat() == catEnd) {
 438                 p.get_token();
 439                 return true;
 440         }
 441         p.putback();
 442         return false;
 443 }
 444
 445
 446 /// replace LaTeX commands in \p s from the unicodesymbols file with their
 447 /// unicode points
 448 docstring convert_unicodesymbols(docstring s)
 449 {
 450         odocstringstream os;
 451         for (size_t i = 0; i < s.size();) {
 452                 if (s[i] != '\\') {
 453                         os.put(s[i++]);
 454                         continue;
 455                 }
 456                 s = s.substr(i);
 457                 docstring rem;
 458                 docstring parsed = encodings.fromLaTeXCommand(s, rem,
 459                                 Encodings::TEXT_CMD);
 460                 os << parsed;
 461                 s = rem;
 462                 if (s.empty() || s[0] != '\\')
 463                         i = 0;
 464                 else
 465                         i = 1;
 466         }
 467         return os.str();
 468 }
 469
 470
 471 /// try to convert \p s to a valid InsetCommand argument
 472 string convert_command_inset_arg(string s)
 473 {
 474         if (isAscii(s))
 475                 // since we don't know the input encoding we can't use from_utf8
 476                 s = to_utf8(convert_unicodesymbols(from_ascii(s)));
 477         // LyX cannot handle newlines in a latex command
 478         return subst(s, "\n", " ");
 479 }
 480
 481
 482 void handle_backslash(ostream & os, string const & s)
 483 {
 484         for (string::const_iterator it = s.begin(), et = s.end(); it != et; ++it) {
 485                 if (*it == '\\')
 486                         os << "\n\\backslash\n";
 487                 else
 488                         os << *it;
 489         }
 490 }
 491
 492
 493 void handle_ert(ostream & os, string const & s, Context & context)
 494 {
 495         // We must have a valid layout before outputting the ERT inset.
 496         context.check_layout(os);
 497         Context newcontext(true, context.textclass);
 498         begin_inset(os, "ERT");
 499         os << "\nstatus collapsed\n";
 500         newcontext.check_layout(os);
 501         for (string::const_iterator it = s.begin(), et = s.end(); it != et; ++it) {
 502                 if (*it == '\\')
 503                         os << "\n\\backslash\n";
 504                 else if (*it == '\n') {
 505                         newcontext.new_paragraph(os);
 506                         newcontext.check_layout(os);
 507                 } else
 508                         os << *it;
 509         }
 510         newcontext.check_end_layout(os);
 511         end_inset(os);
 512 }
 513
 514
 515 void handle_comment(ostream & os, string const & s, Context & context)
 516 {
 517         // TODO: Handle this better
 518         Context newcontext(true, context.textclass);
 519         begin_inset(os, "ERT");
 520         os << "\nstatus collapsed\n";
 521         newcontext.check_layout(os);
 522         handle_backslash(os, s);
 523         // make sure that our comment is the last thing on the line
 524         newcontext.new_paragraph(os);
 525         newcontext.check_layout(os);
 526         newcontext.check_end_layout(os);
 527         end_inset(os);
 528 }
 529
 530
 531 Layout const * findLayout(TextClass const & textclass, string const & name, bool command)
 532 {
 533         Layout const * layout = findLayoutWithoutModule(textclass, name, command);
 534         if (layout)
 535                 return layout;
 536         if (checkModule(name, command))
 537                 return findLayoutWithoutModule(textclass, name, command);
 538         return layout;
 539 }
 540
 541
 542 InsetLayout const * findInsetLayout(TextClass const & textclass, string const & name, bool command)
 543 {
 544         InsetLayout const * insetlayout = findInsetLayoutWithoutModule(textclass, name, command);
 545         if (insetlayout)
 546                 return insetlayout;
 547         if (checkModule(name, command))
 548                 return findInsetLayoutWithoutModule(textclass, name, command);
 549         return insetlayout;
 550 }
 551
 552
 553 void eat_whitespace(Parser &, ostream &, Context &, bool);
 554
 555
 556 /*!
 557  * Skips whitespace and braces.
 558  * This should be called after a command has been parsed that is not put into
 559  * ERT, and where LyX adds "{}" if needed.
 560  */
 561 void skip_spaces_braces(Parser & p, bool keepws = false)
 562 {
 563         /* The following four examples produce the same typeset output and
 564            should be handled by this function:
 565            - abc \j{} xyz
 566            - abc \j {} xyz
 567            - abc \j
 568              {} xyz
 569            - abc \j %comment
 570              {} xyz
 571          */
 572         // Unfortunately we need to skip comments, too.
 573         // We can't use eat_whitespace since writing them after the {}
 574         // results in different output in some cases.
 575         bool const skipped_spaces = p.skip_spaces(true);
 576         bool const skipped_braces = skip_braces(p);
 577         if (keepws && skipped_spaces && !skipped_braces)
 578                 // put back the space (it is better handled by check_space)
 579                 p.unskip_spaces(true);
 580 }
 581
 582
 583 void output_command_layout(ostream & os, Parser & p, bool outer,
 584                            Context & parent_context,
 585                            Layout const * newlayout)
 586 {
 587         TeXFont const oldFont = parent_context.font;
 588         // save the current font size
 589         string const size = oldFont.size;
 590         // reset the font size to default, because the font size switches
 591         // don't affect section headings and the like
 592         parent_context.font.size = Context::normalfont.size;
 593         // we only need to write the font change if we have an open layout
 594         if (!parent_context.atParagraphStart())
 595                 output_font_change(os, oldFont, parent_context.font);
 596         parent_context.check_end_layout(os);
 597         Context context(true, parent_context.textclass, newlayout,
 598                         parent_context.layout, parent_context.font);
 599         if (parent_context.deeper_paragraph) {
 600                 // We are beginning a nested environment after a
 601                 // deeper paragraph inside the outer list environment.
 602                 // Therefore we don't need to output a "begin deeper".
 603                 context.need_end_deeper = true;
 604         }
 605         context.check_deeper(os);
 606         context.check_layout(os);
 607         unsigned int optargs = 0;
 608         while (optargs < context.layout->optargs) {
 609                 eat_whitespace(p, os, context, false);
 610                 if (p.next_token().cat() == catEscape ||
 611                     p.next_token().character() != '[')
 612                         break;
 613                 p.get_token(); // eat '['
 614                 begin_inset(os, "Argument\n");
 615                 os << "status collapsed\n\n";
 616                 parse_text_in_inset(p, os, FLAG_BRACK_LAST, outer, context);
 617                 end_inset(os);
 618                 eat_whitespace(p, os, context, false);
 619                 ++optargs;
 620         }
 621         unsigned int reqargs = 0;
 622         while (reqargs < context.layout->reqargs) {
 623                 eat_whitespace(p, os, context, false);
 624                 if (p.next_token().cat() != catBegin)
 625                         break;
 626                 p.get_token(); // eat '{'
 627                 begin_inset(os, "Argument\n");
 628                 os << "status collapsed\n\n";
 629                 parse_text_in_inset(p, os, FLAG_BRACE_LAST, outer, context);
 630                 end_inset(os);
 631                 eat_whitespace(p, os, context, false);
 632                 ++reqargs;
 633         }
 634         parse_text(p, os, FLAG_ITEM, outer, context);
 635         context.check_end_layout(os);
 636         if (parent_context.deeper_paragraph) {
 637                 // We must suppress the "end deeper" because we
 638                 // suppressed the "begin deeper" above.
 639                 context.need_end_deeper = false;
 640         }
 641         context.check_end_deeper(os);
 642         // We don't need really a new paragraph, but
 643         // we must make sure that the next item gets a \begin_layout.
 644         parent_context.new_paragraph(os);
 645         // Set the font size to the original value. No need to output it here
 646         // (Context::begin_layout() will do that if needed)
 647         parent_context.font.size = size;
 648 }
 649
 650
 651 /*!
 652  * Output a space if necessary.
 653  * This function gets called for every whitespace token.
 654  *
 655  * We have three cases here:
 656  * 1. A space must be suppressed. Example: The lyxcode case below
 657  * 2. A space may be suppressed. Example: Spaces before "\par"
 658  * 3. A space must not be suppressed. Example: A space between two words
 659  *
 660  * We currently handle only 1. and 3 and from 2. only the case of
 661  * spaces before newlines as a side effect.
 662  *
 663  * 2. could be used to suppress as many spaces as possible. This has two effects:
 664  * - Reimporting LyX generated LaTeX files changes almost no whitespace
 665  * - Superflous whitespace from non LyX generated LaTeX files is removed.
 666  * The drawback is that the logic inside the function becomes
 667  * complicated, and that is the reason why it is not implemented.
 668  */
 669 void check_space(Parser & p, ostream & os, Context & context)
 670 {
 671         Token const next = p.next_token();
 672         Token const curr = p.curr_token();
 673         // A space before a single newline and vice versa must be ignored
 674         // LyX emits a newline before \end{lyxcode}.
 675         // This newline must be ignored,
 676         // otherwise LyX will add an additional protected space.
 677         if (next.cat() == catSpace ||
 678             next.cat() == catNewline ||
 679             (next.cs() == "end" && context.layout->free_spacing && curr.cat() == catNewline)) {
 680                 return;
 681         }
 682         context.check_layout(os);
 683         os << ' ';
 684 }
 685
 686
 687 /*!
 688  * Parse all arguments of \p command
 689  */
 690 void parse_arguments(string const & command,
 691                      vector<ArgumentType> const & template_arguments,
 692                      Parser & p, ostream & os, bool outer, Context & context)
 693 {
 694         string ert = command;
 695         size_t no_arguments = template_arguments.size();
 696         for (size_t i = 0; i < no_arguments; ++i) {
 697                 switch (template_arguments[i]) {
 698                 case required:
 699                 case req_group:
 700                         // This argument contains regular LaTeX
 701                         handle_ert(os, ert + '{', context);
 702                         eat_whitespace(p, os, context, false);
 703                         if (template_arguments[i] == required)
 704                                 parse_text(p, os, FLAG_ITEM, outer, context);
 705                         else
 706                                 parse_text_snippet(p, os, FLAG_ITEM, outer, context);
 707                         ert = "}";
 708                         break;
 709                 case item:
 710                         // This argument consists only of a single item.
 711                         // The presence of '{' or not must be preserved.
 712                         p.skip_spaces();
 713                         if (p.next_token().cat() == catBegin)
 714                                 ert += '{' + p.verbatim_item() + '}';
 715                         else
 716                                 ert += p.verbatim_item();
 717                         break;
 718                 case displaymath:
 719                 case verbatim:
 720                         // This argument may contain special characters
 721                         ert += '{' + p.verbatim_item() + '}';
 722                         break;
 723                 case optional:
 724                 case opt_group:
 725                         // true because we must not eat whitespace
 726                         // if an optional arg follows we must not strip the
 727                         // brackets from this one
 728                         if (i < no_arguments - 1 &&
 729                             template_arguments[i+1] == optional)
 730                                 ert += p.getFullOpt(true);
 731                         else
 732                                 ert += p.getOpt(true);
 733                         break;
 734                 }
 735         }
 736         handle_ert(os, ert, context);
 737 }
 738
 739
 740 /*!
 741  * Check whether \p command is a known command. If yes,
 742  * handle the command with all arguments.
 743  * \return true if the command was parsed, false otherwise.
 744  */
 745 bool parse_command(string const & command, Parser & p, ostream & os,
 746                    bool outer, Context & context)
 747 {
 748         if (known_commands.find(command) != known_commands.end()) {
 749                 parse_arguments(command, known_commands[command], p, os,
 750                                 outer, context);
 751                 return true;
 752         }
 753         return false;
 754 }
 755
 756
 757 /// Parses a minipage or parbox
 758 void parse_box(Parser & p, ostream & os, unsigned outer_flags,
 759                unsigned inner_flags, bool outer, Context & parent_context,
 760                string const & outer_type, string const & special,
 761                string const & inner_type)
 762 {
 763         string position;
 764         string inner_pos;
 765         string hor_pos = "c";
 766         // We need to set the height to the LaTeX default of 1\\totalheight
 767         // for the case when no height argument is given
 768         string height_value = "1";
 769         string height_unit = "in";
 770         string height_special = "totalheight";
 771         string latex_height;
 772         string width_value;
 773         string width_unit;
 774         string latex_width;
 775         string width_special = "none";
 776         if (!inner_type.empty() && p.hasOpt()) {
 777                 if (inner_type != "makebox")
 778                         position = p.getArg('[', ']');
 779                 else {
 780                         latex_width = p.getArg('[', ']');
 781                         translate_box_len(latex_width, width_value, width_unit, width_special);
 782                         position = "t";
 783                 }
 784                 if (position != "t" && position != "c" && position != "b") {
 785                         cerr << "invalid position " << position << " for "
 786                              << inner_type << endl;
 787                         position = "c";
 788                 }
 789                 if (p.hasOpt()) {
 790                         if (inner_type != "makebox") {
 791                                 latex_height = p.getArg('[', ']');
 792                                 translate_box_len(latex_height, height_value, height_unit, height_special);
 793                         } else
 794                                 hor_pos = p.getArg('[', ']');
 795
 796                         if (p.hasOpt()) {
 797                                 inner_pos = p.getArg('[', ']');
 798                                 if (inner_pos != "c" && inner_pos != "t" &&
 799                                     inner_pos != "b" && inner_pos != "s") {
 800                                         cerr << "invalid inner_pos "
 801                                              << inner_pos << " for "
 802                                              << inner_type << endl;
 803                                         inner_pos = position;
 804                                 }
 805                         }
 806                 }
 807         }
 808         if (inner_type.empty()) {
 809                 if (special.empty() && outer_type != "framebox")
 810                         latex_width = "1\\columnwidth";
 811                 else {
 812                         Parser p2(special);
 813                         latex_width = p2.getArg('[', ']');
 814                         string const opt = p2.getArg('[', ']');
 815                         if (!opt.empty()) {
 816                                 hor_pos = opt;
 817                                 if (hor_pos != "l" && hor_pos != "c" &&
 818                                     hor_pos != "r") {
 819                                         cerr << "invalid hor_pos " << hor_pos
 820                                              << " for " << outer_type << endl;
 821                                         hor_pos = "c";
 822                                 }
 823                         }
 824                 }
 825         } else if (inner_type != "makebox")
 826                 latex_width = p.verbatim_item();
 827         // if e.g. only \ovalbox{content} was used, set the width to 1\columnwidth
 828         // as this is LyX's standard for such cases (except for makebox)
 829         // \framebox is more special and handled below
 830         if (latex_width.empty() && inner_type != "makebox"
 831                 && outer_type != "framebox")
 832                 latex_width = "1\\columnwidth";
 833
 834         translate_len(latex_width, width_value, width_unit);
 835
 836         bool shadedparbox = false;
 837         if (inner_type == "shaded") {
 838                 eat_whitespace(p, os, parent_context, false);
 839                 if (outer_type == "parbox") {
 840                         // Eat '{'
 841                         if (p.next_token().cat() == catBegin)
 842                                 p.get_token();
 843                         eat_whitespace(p, os, parent_context, false);
 844                         shadedparbox = true;
 845                 }
 846                 p.get_token();
 847                 p.getArg('{', '}');
 848         }
 849         // If we already read the inner box we have to push the inner env
 850         if (!outer_type.empty() && !inner_type.empty() &&
 851             (inner_flags & FLAG_END))
 852                 active_environments.push_back(inner_type);
 853         // LyX can't handle length variables
 854         bool use_ert = contains(width_unit, '\\') || contains(height_unit, '\\');
 855         if (!use_ert && !outer_type.empty() && !inner_type.empty()) {
 856                 // Look whether there is some content after the end of the
 857                 // inner box, but before the end of the outer box.
 858                 // If yes, we need to output ERT.
 859                 p.pushPosition();
 860                 if (inner_flags & FLAG_END)
 861                         p.verbatimEnvironment(inner_type);
 862                 else
 863                         p.verbatim_item();
 864                 p.skip_spaces(true);
 865                 bool const outer_env(outer_type == "framed" || outer_type == "minipage");
 866                 if ((outer_env && p.next_token().asInput() != "\\end") ||
 867                     (!outer_env && p.next_token().cat() != catEnd)) {
 868                         // something is between the end of the inner box and
 869                         // the end of the outer box, so we need to use ERT.
 870                         use_ert = true;
 871                 }
 872                 p.popPosition();
 873         }
 874         // if only \makebox{content} was used we can set its width to 1\width
 875         // because this identic and also identic to \mbox
 876         // this doesn't work for \framebox{content}, thus we have to use ERT for this
 877         if (latex_width.empty() && inner_type == "makebox") {
 878                 width_value = "1";
 879                 width_unit = "in";
 880                 width_special = "width";
 881         } else if (latex_width.empty() && outer_type == "framebox") {
 882                 use_ert = true;
 883         }
 884         if (use_ert) {
 885                 ostringstream ss;
 886                 if (!outer_type.empty()) {
 887                         if (outer_flags & FLAG_END)
 888                                 ss << "\\begin{" << outer_type << '}';
 889                         else {
 890                                 ss << '\\' << outer_type << '{';
 891                                 if (!special.empty())
 892                                         ss << special;
 893                         }
 894                 }
 895                 if (!inner_type.empty()) {
 896                         if (inner_type != "shaded") {
 897                                 if (inner_flags & FLAG_END)
 898                                         ss << "\\begin{" << inner_type << '}';
 899                                 else
 900                                         ss << '\\' << inner_type;
 901                         }
 902                         if (!position.empty())
 903                                 ss << '[' << position << ']';
 904                         if (!latex_height.empty())
 905                                 ss << '[' << latex_height << ']';
 906                         if (!inner_pos.empty())
 907                                 ss << '[' << inner_pos << ']';
 908                         ss << '{' << latex_width << '}';
 909                         if (!(inner_flags & FLAG_END))
 910                                 ss << '{';
 911                 }
 912                 if (inner_type == "shaded")
 913                         ss << "\\begin{shaded}";
 914                 handle_ert(os, ss.str(), parent_context);
 915                 if (!inner_type.empty()) {
 916                         parse_text(p, os, inner_flags, outer, parent_context);
 917                         if (inner_flags & FLAG_END)
 918                                 handle_ert(os, "\\end{" + inner_type + '}',
 919                                            parent_context);
 920                         else
 921                                 handle_ert(os, "}", parent_context);
 922                 }
 923                 if (!outer_type.empty()) {
 924                         // If we already read the inner box we have to pop
 925                         // the inner env
 926                         if (!inner_type.empty() && (inner_flags & FLAG_END))
 927                                 active_environments.pop_back();
 928
 929                         // Ensure that the end of the outer box is parsed correctly:
 930                         // The opening brace has been eaten by parse_outer_box()
 931                         if (!outer_type.empty() && (outer_flags & FLAG_ITEM)) {
 932                                 outer_flags &= ~FLAG_ITEM;
 933                                 outer_flags |= FLAG_BRACE_LAST;
 934                         }
 935                         parse_text(p, os, outer_flags, outer, parent_context);
 936                         if (outer_flags & FLAG_END)
 937                                 handle_ert(os, "\\end{" + outer_type + '}',
 938                                            parent_context);
 939                         else if (inner_type.empty() && outer_type == "framebox")
 940                                 // in this case it is already closed later
 941                                 ;
 942                         else
 943                                 handle_ert(os, "}", parent_context);
 944                 }
 945         } else {
 946                 // LyX does not like empty positions, so we have
 947                 // to set them to the LaTeX default values here.
 948                 if (position.empty())
 949                         position = "c";
 950                 if (inner_pos.empty())
 951                         inner_pos = position;
 952                 parent_context.check_layout(os);
 953                 begin_inset(os, "Box ");
 954                 if (outer_type == "framed")
 955                         os << "Framed\n";
 956                 else if (outer_type == "framebox")
 957                         os << "Boxed\n";
 958                 else if (outer_type == "shadowbox")
 959                         os << "Shadowbox\n";
 960                 else if ((outer_type == "shaded" && inner_type.empty()) ||
 961                              (outer_type == "minipage" && inner_type == "shaded") ||
 962                              (outer_type == "parbox" && inner_type == "shaded")) {
 963                         os << "Shaded\n";
 964                         preamble.registerAutomaticallyLoadedPackage("color");
 965                 } else if (outer_type == "doublebox")
 966                         os << "Doublebox\n";
 967                 else if (outer_type.empty())
 968                         os << "Frameless\n";
 969                 else
 970                         os << outer_type << '\n';
 971                 os << "position \"" << position << "\"\n";
 972                 os << "hor_pos \"" << hor_pos << "\"\n";
 973                 os << "has_inner_box " << !inner_type.empty() << "\n";
 974                 os << "inner_pos \"" << inner_pos << "\"\n";
 975                 os << "use_parbox " << (inner_type == "parbox" || shadedparbox)
 976                    << '\n';
 977                 os << "use_makebox " << (inner_type == "makebox") << '\n';
 978                 os << "width \"" << width_value << width_unit << "\"\n";
 979                 os << "special \"" << width_special << "\"\n";
 980                 os << "height \"" << height_value << height_unit << "\"\n";
 981                 os << "height_special \"" << height_special << "\"\n";
 982                 os << "status open\n\n";
 983
 984                 // Unfortunately we can't use parse_text_in_inset:
 985                 // InsetBox::forcePlainLayout() is hard coded and does not
 986                 // use the inset layout. Apart from that do we call parse_text
 987                 // up to two times, but need only one check_end_layout.
 988                 bool const forcePlainLayout =
 989                         (!inner_type.empty() || inner_type == "makebox") &&
 990                         outer_type != "shaded" && outer_type != "framed";
 991                 Context context(true, parent_context.textclass);
 992                 if (forcePlainLayout)
 993                         context.layout = &context.textclass.plainLayout();
 994                 else
 995                         context.font = parent_context.font;
 996
 997                 // If we have no inner box the contents will be read with the outer box
 998                 if (!inner_type.empty())
 999                         parse_text(p, os, inner_flags, outer, context);
1000
1001                 // Ensure that the end of the outer box is parsed correctly:
1002                 // The opening brace has been eaten by parse_outer_box()
1003                 if (!outer_type.empty() && (outer_flags & FLAG_ITEM)) {
1004                         outer_flags &= ~FLAG_ITEM;
1005                         outer_flags |= FLAG_BRACE_LAST;
1006                 }
1007
1008                 // Find end of outer box, output contents if inner_type is
1009                 // empty and output possible comments
1010                 if (!outer_type.empty()) {
1011                         // If we already read the inner box we have to pop
1012                         // the inner env
1013                         if (!inner_type.empty() && (inner_flags & FLAG_END))
1014                                 active_environments.pop_back();
1015                         // This does not output anything but comments if
1016                         // inner_type is not empty (see use_ert)
1017                         parse_text(p, os, outer_flags, outer, context);
1018                 }
1019
1020                 context.check_end_layout(os);
1021                 end_inset(os);
1022 #ifdef PRESERVE_LAYOUT
1023                 // LyX puts a % after the end of the minipage
1024                 if (p.next_token().cat() == catNewline && p.next_token().cs().size() > 1) {
1025                         // new paragraph
1026                         //handle_comment(os, "%dummy", parent_context);
1027                         p.get_token();
1028                         p.skip_spaces();
1029                         parent_context.new_paragraph(os);
1030                 }
1031                 else if (p.next_token().cat() == catSpace || p.next_token().cat() == catNewline) {
1032                         //handle_comment(os, "%dummy", parent_context);
1033                         p.get_token();
1034                         p.skip_spaces();
1035                         // We add a protected space if something real follows
1036                         if (p.good() && p.next_token().cat() != catComment) {
1037                                 begin_inset(os, "space ~\n");
1038                                 end_inset(os);
1039                         }
1040                 }
1041 #endif
1042         }
1043 }
1044
1045
1046 void parse_outer_box(Parser & p, ostream & os, unsigned flags, bool outer,
1047                      Context & parent_context, string const & outer_type,
1048                      string const & special)
1049 {
1050         eat_whitespace(p, os, parent_context, false);
1051         if (flags & FLAG_ITEM) {
1052                 // Eat '{'
1053                 if (p.next_token().cat() == catBegin)
1054                         p.get_token();
1055                 else
1056                         cerr << "Warning: Ignoring missing '{' after \\"
1057                              << outer_type << '.' << endl;
1058                 eat_whitespace(p, os, parent_context, false);
1059         }
1060         string inner;
1061         unsigned int inner_flags = 0;
1062         p.pushPosition();
1063         if (outer_type == "minipage" || outer_type == "parbox") {
1064                 p.skip_spaces(true);
1065                 while (p.hasOpt()) {
1066                         p.getArg('[', ']');
1067                         p.skip_spaces(true);
1068                 }
1069                 p.getArg('{', '}');
1070                 p.skip_spaces(true);
1071                 if (outer_type == "parbox") {
1072                         // Eat '{'
1073                         if (p.next_token().cat() == catBegin)
1074                                 p.get_token();
1075                         p.skip_spaces(true);
1076                 }
1077         }
1078         if (outer_type == "shaded") {
1079                 // These boxes never have an inner box
1080                 ;
1081         } else if (p.next_token().asInput() == "\\parbox") {
1082                 inner = p.get_token().cs();
1083                 inner_flags = FLAG_ITEM;
1084         } else if (p.next_token().asInput() == "\\begin") {
1085                 // Is this a minipage or shaded box?
1086                 p.pushPosition();
1087                 p.get_token();
1088                 inner = p.getArg('{', '}');
1089                 p.popPosition();
1090                 if (inner == "minipage" || inner == "shaded")
1091                         inner_flags = FLAG_END;
1092                 else
1093                         inner = "";
1094         }
1095         p.popPosition();
1096         if (inner_flags == FLAG_END) {
1097                 if (inner != "shaded")
1098                 {
1099                         p.get_token();
1100                         p.getArg('{', '}');
1101                         eat_whitespace(p, os, parent_context, false);
1102                 }
1103                 parse_box(p, os, flags, FLAG_END, outer, parent_context,
1104                           outer_type, special, inner);
1105         } else {
1106                 if (inner_flags == FLAG_ITEM) {
1107                         p.get_token();
1108                         eat_whitespace(p, os, parent_context, false);
1109                 }
1110                 parse_box(p, os, flags, inner_flags, outer, parent_context,
1111                           outer_type, special, inner);
1112         }
1113 }
1114
1115
1116 void parse_listings(Parser & p, ostream & os, Context & parent_context)
1117 {
1118         parent_context.check_layout(os);
1119         begin_inset(os, "listings\n");
1120         os << "inline false\n"
1121            << "status collapsed\n";
1122         Context context(true, parent_context.textclass);
1123         context.layout = &parent_context.textclass.plainLayout();
1124         context.check_layout(os);
1125         string const s = p.verbatimEnvironment("lstlisting");
1126         for (string::const_iterator it = s.begin(), et = s.end(); it != et; ++it) {
1127                 if (*it == '\\')
1128                         os << "\n\\backslash\n";
1129                 else if (*it == '\n') {
1130                         // avoid adding an empty paragraph at the end
1131                         if (it + 1 != et) {
1132                                 context.new_paragraph(os);
1133                                 context.check_layout(os);
1134                         }
1135                 } else
1136                         os << *it;
1137         }
1138         context.check_end_layout(os);
1139         end_inset(os);
1140 }
1141
1142
1143 /// parse an unknown environment
1144 void parse_unknown_environment(Parser & p, string const & name, ostream & os,
1145                                unsigned flags, bool outer,
1146                                Context & parent_context)
1147 {
1148         if (name == "tabbing")
1149                 // We need to remember that we have to handle '\=' specially
1150                 flags |= FLAG_TABBING;
1151
1152         // We need to translate font changes and paragraphs inside the
1153         // environment to ERT if we have a non standard font.
1154         // Otherwise things like
1155         // \large\begin{foo}\huge bar\end{foo}
1156         // will not work.
1157         bool const specialfont =
1158                 (parent_context.font != parent_context.normalfont);
1159         bool const new_layout_allowed = parent_context.new_layout_allowed;
1160         if (specialfont)
1161                 parent_context.new_layout_allowed = false;
1162         handle_ert(os, "\\begin{" + name + "}", parent_context);
1163         parse_text_snippet(p, os, flags, outer, parent_context);
1164         handle_ert(os, "\\end{" + name + "}", parent_context);
1165         if (specialfont)
1166                 parent_context.new_layout_allowed = new_layout_allowed;
1167 }
1168
1169
1170 void parse_environment(Parser & p, ostream & os, bool outer,
1171                        string & last_env, bool & title_layout_found,
1172                        Context & parent_context)
1173 {
1174         Layout const * newlayout;
1175         InsetLayout const * newinsetlayout = 0;
1176         string const name = p.getArg('{', '}');
1177         const bool is_starred = suffixIs(name, '*');
1178         string const unstarred_name = rtrim(name, "*");
1179         active_environments.push_back(name);
1180
1181         if (is_math_env(name)) {
1182                 parent_context.check_layout(os);
1183                 begin_inset(os, "Formula ");
1184                 os << "\\begin{" << name << "}";
1185                 parse_math(p, os, FLAG_END, MATH_MODE);
1186                 os << "\\end{" << name << "}";
1187                 end_inset(os);
1188                 if (is_display_math_env(name)) {
1189                         // Prevent the conversion of a line break to a space
1190                         // (bug 7668). This does not change the output, but
1191                         // looks ugly in LyX.
1192                         eat_whitespace(p, os, parent_context, false);
1193                 }
1194         }
1195
1196         else if (unstarred_name == "tabular" || name == "longtable") {
1197                 eat_whitespace(p, os, parent_context, false);
1198                 string width = "0pt";
1199                 if (name == "tabular*") {
1200                         width = lyx::translate_len(p.getArg('{', '}'));
1201                         eat_whitespace(p, os, parent_context, false);
1202                 }
1203                 parent_context.check_layout(os);
1204                 begin_inset(os, "Tabular ");
1205                 handle_tabular(p, os, name, width, parent_context);
1206                 end_inset(os);
1207                 p.skip_spaces();
1208         }
1209
1210         else if (parent_context.textclass.floats().typeExist(unstarred_name)) {
1211                 eat_whitespace(p, os, parent_context, false);
1212                 string const opt = p.hasOpt() ? p.getArg('[', ']') : string();
1213                 eat_whitespace(p, os, parent_context, false);
1214                 parent_context.check_layout(os);
1215                 begin_inset(os, "Float " + unstarred_name + "\n");
1216                 // store the float type for subfloats
1217                 // subfloats only work with figures and tables
1218                 if (unstarred_name == "figure")
1219                         float_type = unstarred_name;
1220                 else if (unstarred_name == "table")
1221                         float_type = unstarred_name;
1222                 else
1223                         float_type = "";
1224                 if (!opt.empty())
1225                         os << "placement " << opt << '\n';
1226                 os << "wide " << convert<string>(is_starred)
1227                    << "\nsideways false"
1228                    << "\nstatus open\n\n";
1229                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
1230                 end_inset(os);
1231                 // We don't need really a new paragraph, but
1232                 // we must make sure that the next item gets a \begin_layout.
1233                 parent_context.new_paragraph(os);
1234                 p.skip_spaces();
1235                 // the float is parsed thus delete the type
1236                 float_type = "";
1237         }
1238
1239         else if (unstarred_name == "sidewaysfigure"
1240                 || unstarred_name == "sidewaystable") {
1241                 eat_whitespace(p, os, parent_context, false);
1242                 parent_context.check_layout(os);
1243                 if (unstarred_name == "sidewaysfigure")
1244                         begin_inset(os, "Float figure\n");
1245                 else
1246                         begin_inset(os, "Float table\n");
1247                 os << "wide " << convert<string>(is_starred)
1248                    << "\nsideways true"
1249                    << "\nstatus open\n\n";
1250                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
1251                 end_inset(os);
1252                 // We don't need really a new paragraph, but
1253                 // we must make sure that the next item gets a \begin_layout.
1254                 parent_context.new_paragraph(os);
1255                 p.skip_spaces();
1256         }
1257
1258         else if (name == "wrapfigure" || name == "wraptable") {
1259                 // syntax is \begin{wrapfigure}[lines]{placement}[overhang]{width}
1260                 eat_whitespace(p, os, parent_context, false);
1261                 parent_context.check_layout(os);
1262                 // default values
1263                 string lines = "0";
1264                 string overhang = "0col%";
1265                 // parse
1266                 if (p.hasOpt())
1267                         lines = p.getArg('[', ']');
1268                 string const placement = p.getArg('{', '}');
1269                 if (p.hasOpt())
1270                         overhang = p.getArg('[', ']');
1271                 string const width = p.getArg('{', '}');
1272                 // write
1273                 if (name == "wrapfigure")
1274                         begin_inset(os, "Wrap figure\n");
1275                 else
1276                         begin_inset(os, "Wrap table\n");
1277                 os << "lines " << lines
1278                    << "\nplacement " << placement
1279                    << "\noverhang " << lyx::translate_len(overhang)
1280                    << "\nwidth " << lyx::translate_len(width)
1281                    << "\nstatus open\n\n";
1282                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
1283                 end_inset(os);
1284                 // We don't need really a new paragraph, but
1285                 // we must make sure that the next item gets a \begin_layout.
1286                 parent_context.new_paragraph(os);
1287                 p.skip_spaces();
1288         }
1289
1290         else if (name == "minipage") {
1291                 eat_whitespace(p, os, parent_context, false);
1292                 // Test whether this is an outer box of a shaded box
1293                 p.pushPosition();
1294                 // swallow arguments
1295                 while (p.hasOpt()) {
1296                         p.getArg('[', ']');
1297                         p.skip_spaces(true);
1298                 }
1299                 p.getArg('{', '}');
1300                 p.skip_spaces(true);
1301                 Token t = p.get_token();
1302                 bool shaded = false;
1303                 if (t.asInput() == "\\begin") {
1304                         p.skip_spaces(true);
1305                         if (p.getArg('{', '}') == "shaded")
1306                                 shaded = true;
1307                 }
1308                 p.popPosition();
1309                 if (shaded)
1310                         parse_outer_box(p, os, FLAG_END, outer,
1311                                         parent_context, name, "shaded");
1312                 else
1313                         parse_box(p, os, 0, FLAG_END, outer, parent_context,
1314                                   "", "", name);
1315                 p.skip_spaces();
1316         }
1317
1318         else if (name == "comment") {
1319                 eat_whitespace(p, os, parent_context, false);
1320                 parent_context.check_layout(os);
1321                 begin_inset(os, "Note Comment\n");
1322                 os << "status open\n";
1323                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
1324                 end_inset(os);
1325                 p.skip_spaces();
1326                 skip_braces(p); // eat {} that might by set by LyX behind comments
1327         }
1328
1329         else if (name == "lyxgreyedout") {
1330                 eat_whitespace(p, os, parent_context, false);
1331                 parent_context.check_layout(os);
1332                 begin_inset(os, "Note Greyedout\n");
1333                 os << "status open\n";
1334                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
1335                 end_inset(os);
1336                 p.skip_spaces();
1337                 if (!preamble.notefontcolor().empty())
1338                         preamble.registerAutomaticallyLoadedPackage("color");
1339         }
1340
1341         else if (name == "framed" || name == "shaded") {
1342                 eat_whitespace(p, os, parent_context, false);
1343                 parse_outer_box(p, os, FLAG_END, outer, parent_context, name, "");
1344                 p.skip_spaces();
1345         }
1346
1347         else if (name == "lstlisting") {
1348                 eat_whitespace(p, os, parent_context, false);
1349                 // FIXME handle listings with parameters
1350                 //       If this is added, don't forgot to handle the
1351                 //       automatic color package loading
1352                 if (p.hasOpt())
1353                         parse_unknown_environment(p, name, os, FLAG_END,
1354                                                   outer, parent_context);
1355                 else
1356                         parse_listings(p, os, parent_context);
1357                 p.skip_spaces();
1358         }
1359
1360         else if (!parent_context.new_layout_allowed)
1361                 parse_unknown_environment(p, name, os, FLAG_END, outer,
1362                                           parent_context);
1363
1364         // Alignment and spacing settings
1365         // FIXME (bug xxxx): These settings can span multiple paragraphs and
1366         //                                       therefore are totally broken!
1367         // Note that \centering, raggedright, and raggedleft cannot be handled, as
1368         // they are commands not environments. They are furthermore switches that
1369         // can be ended by another switches, but also by commands like \footnote or
1370         // \parbox. So the only safe way is to leave them untouched.
1371         else if (name == "center" || name == "centering" ||
1372                  name == "flushleft" || name == "flushright" ||
1373                  name == "singlespace" || name == "onehalfspace" ||
1374                  name == "doublespace" || name == "spacing") {
1375                 eat_whitespace(p, os, parent_context, false);
1376                 // We must begin a new paragraph if not already done
1377                 if (! parent_context.atParagraphStart()) {
1378                         parent_context.check_end_layout(os);
1379                         parent_context.new_paragraph(os);
1380                 }
1381                 if (name == "flushleft")
1382                         parent_context.add_extra_stuff("\\align left\n");
1383                 else if (name == "flushright")
1384                         parent_context.add_extra_stuff("\\align right\n");
1385                 else if (name == "center" || name == "centering")
1386                         parent_context.add_extra_stuff("\\align center\n");
1387                 else if (name == "singlespace")
1388                         parent_context.add_extra_stuff("\\paragraph_spacing single\n");
1389                 else if (name == "onehalfspace")
1390                         parent_context.add_extra_stuff("\\paragraph_spacing onehalf\n");
1391                 else if (name == "doublespace")
1392                         parent_context.add_extra_stuff("\\paragraph_spacing double\n");
1393                 else if (name == "spacing")
1394                         parent_context.add_extra_stuff("\\paragraph_spacing other " + p.verbatim_item() + "\n");
1395                 parse_text(p, os, FLAG_END, outer, parent_context);
1396                 // Just in case the environment is empty
1397                 parent_context.extra_stuff.erase();
1398                 // We must begin a new paragraph to reset the alignment
1399                 parent_context.new_paragraph(os);
1400                 p.skip_spaces();
1401         }
1402
1403         // The single '=' is meant here.
1404         else if ((newlayout = findLayout(parent_context.textclass, name, false))) {
1405                 eat_whitespace(p, os, parent_context, false);
1406                 Context context(true, parent_context.textclass, newlayout,
1407                                 parent_context.layout, parent_context.font);
1408                 if (parent_context.deeper_paragraph) {
1409                         // We are beginning a nested environment after a
1410                         // deeper paragraph inside the outer list environment.
1411                         // Therefore we don't need to output a "begin deeper".
1412                         context.need_end_deeper = true;
1413                 }
1414                 parent_context.check_end_layout(os);
1415                 if (last_env == name) {
1416                         // we need to output a separator since LyX would export
1417                         // the two environments as one otherwise (bug 5716)
1418                         docstring const sep = from_ascii("--Separator--");
1419                         TeX2LyXDocClass const & textclass(parent_context.textclass);
1420                         if (textclass.hasLayout(sep)) {
1421                                 Context newcontext(parent_context);
1422                                 newcontext.layout = &(textclass[sep]);
1423                                 newcontext.check_layout(os);
1424                                 newcontext.check_end_layout(os);
1425                         } else {
1426                                 parent_context.check_layout(os);
1427                                 begin_inset(os, "Note Note\n");
1428                                 os << "status closed\n";
1429                                 Context newcontext(true, textclass,
1430                                                 &(textclass.defaultLayout()));
1431                                 newcontext.check_layout(os);
1432                                 newcontext.check_end_layout(os);
1433                                 end_inset(os);
1434                                 parent_context.check_end_layout(os);
1435                         }
1436                 }
1437                 switch (context.layout->latextype) {
1438                 case  LATEX_LIST_ENVIRONMENT:
1439                         context.add_par_extra_stuff("\\labelwidthstring "
1440                                                     + p.verbatim_item() + '\n');
1441                         p.skip_spaces();
1442                         break;
1443                 case  LATEX_BIB_ENVIRONMENT:
1444                         p.verbatim_item(); // swallow next arg
1445                         p.skip_spaces();
1446                         break;
1447                 default:
1448                         break;
1449                 }
1450                 context.check_deeper(os);
1451                 // handle known optional and required arguments
1452                 // layouts require all optional arguments before the required ones
1453                 // Unfortunately LyX can't handle arguments of list arguments (bug 7468):
1454                 // It is impossible to place anything after the environment name,
1455                 // but before the first \\item.
1456                 if (context.layout->latextype == LATEX_ENVIRONMENT) {
1457                         bool need_layout = true;
1458                         unsigned int optargs = 0;
1459                         while (optargs < context.layout->optargs) {
1460                                 eat_whitespace(p, os, context, false);
1461                                 if (p.next_token().cat() == catEscape ||
1462                                     p.next_token().character() != '[')
1463                                         break;
1464                                 p.get_token(); // eat '['
1465                                 if (need_layout) {
1466                                         context.check_layout(os);
1467                                         need_layout = false;
1468                                 }
1469                                 begin_inset(os, "Argument\n");
1470                                 os << "status collapsed\n\n";
1471                                 parse_text_in_inset(p, os, FLAG_BRACK_LAST, outer, context);
1472                                 end_inset(os);
1473                                 eat_whitespace(p, os, context, false);
1474                                 ++optargs;
1475                         }
1476                         unsigned int reqargs = 0;
1477                         while (reqargs < context.layout->reqargs) {
1478                                 eat_whitespace(p, os, context, false);
1479                                 if (p.next_token().cat() != catBegin)
1480                                         break;
1481                                 p.get_token(); // eat '{'
1482                                 if (need_layout) {
1483                                         context.check_layout(os);
1484                                         need_layout = false;
1485                                 }
1486                                 begin_inset(os, "Argument\n");
1487                                 os << "status collapsed\n\n";
1488                                 parse_text_in_inset(p, os, FLAG_BRACE_LAST, outer, context);
1489                                 end_inset(os);
1490                                 eat_whitespace(p, os, context, false);
1491                                 ++reqargs;
1492                         }
1493                 }
1494                 parse_text(p, os, FLAG_END, outer, context);
1495                 context.check_end_layout(os);
1496                 if (parent_context.deeper_paragraph) {
1497                         // We must suppress the "end deeper" because we
1498                         // suppressed the "begin deeper" above.
1499                         context.need_end_deeper = false;
1500                 }
1501                 context.check_end_deeper(os);
1502                 parent_context.new_paragraph(os);
1503                 p.skip_spaces();
1504                 if (!title_layout_found)
1505                         title_layout_found = newlayout->intitle;
1506         }
1507
1508         // The single '=' is meant here.
1509         else if ((newinsetlayout = findInsetLayout(parent_context.textclass, name, false))) {
1510                 eat_whitespace(p, os, parent_context, false);
1511                 parent_context.check_layout(os);
1512                 begin_inset(os, "Flex ");
1513                 os << to_utf8(newinsetlayout->name()) << '\n'
1514                    << "status collapsed\n";
1515                 parse_text_in_inset(p, os, FLAG_END, false, parent_context, newinsetlayout);
1516                 end_inset(os);
1517         }
1518
1519         else if (name == "appendix") {
1520                 // This is no good latex style, but it works and is used in some documents...
1521                 eat_whitespace(p, os, parent_context, false);
1522                 parent_context.check_end_layout(os);
1523                 Context context(true, parent_context.textclass, parent_context.layout,
1524                                 parent_context.layout, parent_context.font);
1525                 context.check_layout(os);
1526                 os << "\\start_of_appendix\n";
1527                 parse_text(p, os, FLAG_END, outer, context);
1528                 context.check_end_layout(os);
1529                 p.skip_spaces();
1530         }
1531
1532         else if (known_environments.find(name) != known_environments.end()) {
1533                 vector<ArgumentType> arguments = known_environments[name];
1534                 // The last "argument" denotes wether we may translate the
1535                 // environment contents to LyX
1536                 // The default required if no argument is given makes us
1537                 // compatible with the reLyXre environment.
1538                 ArgumentType contents = arguments.empty() ?
1539                         required :
1540                         arguments.back();
1541                 if (!arguments.empty())
1542                         arguments.pop_back();
1543                 // See comment in parse_unknown_environment()
1544                 bool const specialfont =
1545                         (parent_context.font != parent_context.normalfont);
1546                 bool const new_layout_allowed =
1547                         parent_context.new_layout_allowed;
1548                 if (specialfont)
1549                         parent_context.new_layout_allowed = false;
1550                 parse_arguments("\\begin{" + name + "}", arguments, p, os,
1551                                 outer, parent_context);
1552                 if (contents == verbatim)
1553                         handle_ert(os, p.verbatimEnvironment(name),
1554                                    parent_context);
1555                 else
1556                         parse_text_snippet(p, os, FLAG_END, outer,
1557                                            parent_context);
1558                 handle_ert(os, "\\end{" + name + "}", parent_context);
1559                 if (specialfont)
1560                         parent_context.new_layout_allowed = new_layout_allowed;
1561         }
1562
1563         else
1564                 parse_unknown_environment(p, name, os, FLAG_END, outer,
1565                                           parent_context);
1566
1567         last_env = name;
1568         active_environments.pop_back();
1569 }
1570
1571
1572 /// parses a comment and outputs it to \p os.
1573 void parse_comment(Parser & p, ostream & os, Token const & t, Context & context)
1574 {
1575         LASSERT(t.cat() == catComment, return);
1576         if (!t.cs().empty()) {
1577                 context.check_layout(os);
1578                 handle_comment(os, '%' + t.cs(), context);
1579                 if (p.next_token().cat() == catNewline) {
1580                         // A newline after a comment line starts a new
1581                         // paragraph
1582                         if (context.new_layout_allowed) {
1583                                 if(!context.atParagraphStart())
1584                                         // Only start a new paragraph if not already
1585                                         // done (we might get called recursively)
1586                                         context.new_paragraph(os);
1587                         } else
1588                                 handle_ert(os, "\n", context);
1589                         eat_whitespace(p, os, context, true);
1590                 }
1591         } else {
1592                 // "%\n" combination
1593                 p.skip_spaces();
1594         }
1595 }
1596
1597
1598 /*!
1599  * Reads spaces and comments until the first non-space, non-comment token.
1600  * New paragraphs (double newlines or \\par) are handled like simple spaces
1601  * if \p eatParagraph is true.
1602  * Spaces are skipped, but comments are written to \p os.
1603  */
1604 void eat_whitespace(Parser & p, ostream & os, Context & context,
1605                     bool eatParagraph)
1606 {
1607         while (p.good()) {
1608                 Token const & t = p.get_token();
1609                 if (t.cat() == catComment)
1610                         parse_comment(p, os, t, context);
1611                 else if ((! eatParagraph && p.isParagraph()) ||
1612                          (t.cat() != catSpace && t.cat() != catNewline)) {
1613                         p.putback();
1614                         return;
1615                 }
1616         }
1617 }
1618
1619
1620 /*!
1621  * Set a font attribute, parse text and reset the font attribute.
1622  * \param attribute Attribute name (e.g. \\family, \\shape etc.)
1623  * \param currentvalue Current value of the attribute. Is set to the new
1624  * value during parsing.
1625  * \param newvalue New value of the attribute
1626  */
1627 void parse_text_attributes(Parser & p, ostream & os, unsigned flags, bool outer,
1628                            Context & context, string const & attribute,
1629                            string & currentvalue, string const & newvalue)
1630 {
1631         context.check_layout(os);
1632         string const oldvalue = currentvalue;
1633         currentvalue = newvalue;
1634         os << '\n' << attribute << ' ' << newvalue << "\n";
1635         parse_text_snippet(p, os, flags, outer, context);
1636         context.check_layout(os);
1637         os << '\n' << attribute << ' ' << oldvalue << "\n";
1638         currentvalue = oldvalue;
1639 }
1640
1641
1642 /// get the arguments of a natbib or jurabib citation command
1643 void get_cite_arguments(Parser & p, bool natbibOrder,
1644         string & before, string & after)
1645 {
1646         // We need to distinguish "" and "[]", so we can't use p.getOpt().
1647
1648         // text before the citation
1649         before.clear();
1650         // text after the citation
1651         after = p.getFullOpt();
1652
1653         if (!after.empty()) {
1654                 before = p.getFullOpt();
1655                 if (natbibOrder && !before.empty())
1656                         swap(before, after);
1657         }
1658 }
1659
1660
1661 /// Convert filenames with TeX macros and/or quotes to something LyX
1662 /// can understand
1663 string const normalize_filename(string const & name)
1664 {
1665         Parser p(trim(name, "\""));
1666         ostringstream os;
1667         while (p.good()) {
1668                 Token const & t = p.get_token();
1669                 if (t.cat() != catEscape)
1670                         os << t.asInput();
1671                 else if (t.cs() == "lyxdot") {
1672                         // This is used by LyX for simple dots in relative
1673                         // names
1674                         os << '.';
1675                         p.skip_spaces();
1676                 } else if (t.cs() == "space") {
1677                         os << ' ';
1678                         p.skip_spaces();
1679                 } else
1680                         os << t.asInput();
1681         }
1682         return os.str();
1683 }
1684
1685
1686 /// Convert \p name from TeX convention (relative to master file) to LyX
1687 /// convention (relative to .lyx file) if it is relative
1688 void fix_relative_filename(string & name)
1689 {
1690         if (FileName::isAbsolute(name))
1691                 return;
1692
1693         name = to_utf8(makeRelPath(from_utf8(makeAbsPath(name, getMasterFilePath()).absFileName()),
1694                                    from_utf8(getParentFilePath())));
1695 }
1696
1697
1698 /// Parse a NoWeb Scrap section. The initial "<<" is already parsed.
1699 void parse_noweb(Parser & p, ostream & os, Context & context)
1700 {
1701         // assemble the rest of the keyword
1702         string name("<<");
1703         bool scrap = false;
1704         while (p.good()) {
1705                 Token const & t = p.get_token();
1706                 if (t.asInput() == ">" && p.next_token().asInput() == ">") {
1707                         name += ">>";
1708                         p.get_token();
1709                         scrap = (p.good() && p.next_token().asInput() == "=");
1710                         if (scrap)
1711                                 name += p.get_token().asInput();
1712                         break;
1713                 }
1714                 name += t.asInput();
1715         }
1716
1717         if (!scrap || !context.new_layout_allowed ||
1718             !context.textclass.hasLayout(from_ascii("Scrap"))) {
1719                 cerr << "Warning: Could not interpret '" << name
1720                      << "'. Ignoring it." << endl;
1721                 return;
1722         }
1723
1724         // We use new_paragraph instead of check_end_layout because the stuff
1725         // following the noweb chunk needs to start with a \begin_layout.
1726         // This may create a new paragraph even if there was none in the
1727         // noweb file, but the alternative is an invalid LyX file. Since
1728         // noweb code chunks are implemented with a layout style in LyX they
1729         // always must be in an own paragraph.
1730         context.new_paragraph(os);
1731         Context newcontext(true, context.textclass,
1732                 &context.textclass[from_ascii("Scrap")]);
1733         newcontext.check_layout(os);
1734         os << name;
1735         while (p.good()) {
1736                 Token const & t = p.get_token();
1737                 // We abuse the parser a bit, because this is no TeX syntax
1738                 // at all.
1739                 if (t.cat() == catEscape)
1740                         os << subst(t.asInput(), "\\", "\n\\backslash\n");
1741                 else {
1742                         ostringstream oss;
1743                         Context tmp(false, context.textclass,
1744                                     &context.textclass[from_ascii("Scrap")]);
1745                         tmp.need_end_layout = true;
1746                         tmp.check_layout(oss);
1747                         os << subst(t.asInput(), "\n", oss.str());
1748                 }
1749                 // The scrap chunk is ended by an @ at the beginning of a line.
1750                 // After the @ the line may contain a comment and/or
1751                 // whitespace, but nothing else.
1752                 if (t.asInput() == "@" && p.prev_token().cat() == catNewline &&
1753                     (p.next_token().cat() == catSpace ||
1754                      p.next_token().cat() == catNewline ||
1755                      p.next_token().cat() == catComment)) {
1756                         while (p.good() && p.next_token().cat() == catSpace)
1757                                 os << p.get_token().asInput();
1758                         if (p.next_token().cat() == catComment)
1759                                 // The comment includes a final '\n'
1760                                 os << p.get_token().asInput();
1761                         else {
1762                                 if (p.next_token().cat() == catNewline)
1763                                         p.get_token();
1764                                 os << '\n';
1765                         }
1766                         break;
1767                 }
1768         }
1769         newcontext.check_end_layout(os);
1770 }
1771
1772
1773 /// detects \\def, \\long\\def and \\global\\long\\def with ws and comments
1774 bool is_macro(Parser & p)
1775 {
1776         Token first = p.curr_token();
1777         if (first.cat() != catEscape || !p.good())
1778                 return false;
1779         if (first.cs() == "def")
1780                 return true;
1781         if (first.cs() != "global" && first.cs() != "long")
1782                 return false;
1783         Token second = p.get_token();
1784         int pos = 1;
1785         while (p.good() && !p.isParagraph() && (second.cat() == catSpace ||
1786                second.cat() == catNewline || second.cat() == catComment)) {
1787                 second = p.get_token();
1788                 pos++;
1789         }
1790         bool secondvalid = second.cat() == catEscape;
1791         Token third;
1792         bool thirdvalid = false;
1793         if (p.good() && first.cs() == "global" && secondvalid &&
1794             second.cs() == "long") {
1795                 third = p.get_token();
1796                 pos++;
1797                 while (p.good() && !p.isParagraph() &&
1798                        (third.cat() == catSpace ||
1799                         third.cat() == catNewline ||
1800                         third.cat() == catComment)) {
1801                         third = p.get_token();
1802                         pos++;
1803                 }
1804                 thirdvalid = third.cat() == catEscape;
1805         }
1806         for (int i = 0; i < pos; ++i)
1807                 p.putback();
1808         if (!secondvalid)
1809                 return false;
1810         if (!thirdvalid)
1811                 return (first.cs() == "global" || first.cs() == "long") &&
1812                        second.cs() == "def";
1813         return first.cs() == "global" && second.cs() == "long" &&
1814                third.cs() == "def";
1815 }
1816
1817
1818 /// Parse a macro definition (assumes that is_macro() returned true)
1819 void parse_macro(Parser & p, ostream & os, Context & context)
1820 {
1821         context.check_layout(os);
1822         Token first = p.curr_token();
1823         Token second;
1824         Token third;
1825         string command = first.asInput();
1826         if (first.cs() != "def") {
1827                 p.get_token();
1828                 eat_whitespace(p, os, context, false);
1829                 second = p.curr_token();
1830                 command += second.asInput();
1831                 if (second.cs() != "def") {
1832                         p.get_token();
1833                         eat_whitespace(p, os, context, false);
1834                         third = p.curr_token();
1835                         command += third.asInput();
1836                 }
1837         }
1838         eat_whitespace(p, os, context, false);
1839         string const name = p.get_token().cs();
1840         eat_whitespace(p, os, context, false);
1841
1842         // parameter text
1843         bool simple = true;
1844         string paramtext;
1845         int arity = 0;
1846         while (p.next_token().cat() != catBegin) {
1847                 if (p.next_token().cat() == catParameter) {
1848                         // # found
1849                         p.get_token();
1850                         paramtext += "#";
1851
1852                         // followed by number?
1853                         if (p.next_token().cat() == catOther) {
1854                                 char c = p.getChar();
1855                                 paramtext += c;
1856                                 // number = current arity + 1?
1857                                 if (c == arity + '0' + 1)
1858                                         ++arity;
1859                                 else
1860                                         simple = false;
1861                         } else
1862                                 paramtext += p.get_token().cs();
1863                 } else {
1864                         paramtext += p.get_token().cs();
1865                         simple = false;
1866                 }
1867         }
1868
1869         // only output simple (i.e. compatible) macro as FormulaMacros
1870         string ert = '\\' + name + ' ' + paramtext + '{' + p.verbatim_item() + '}';
1871         if (simple) {
1872                 context.check_layout(os);
1873                 begin_inset(os, "FormulaMacro");
1874                 os << "\n\\def" << ert;
1875                 end_inset(os);
1876         } else
1877                 handle_ert(os, command + ert, context);
1878 }
1879
1880 } // anonymous namespace
1881
1882
1883 void parse_text(Parser & p, ostream & os, unsigned flags, bool outer,
1884                 Context & context)
1885 {
1886         Layout const * newlayout = 0;
1887         InsetLayout const * newinsetlayout = 0;
1888         char const * const * where = 0;
1889         // Store the latest bibliographystyle and nocite{*} option
1890         // (needed for bibtex inset)
1891         string btprint;
1892         string bibliographystyle;
1893         bool const use_natbib = preamble.isPackageUsed("natbib");
1894         bool const use_jurabib = preamble.isPackageUsed("jurabib");
1895         string last_env;
1896         bool title_layout_found = false;
1897         while (p.good()) {
1898                 Token const & t = p.get_token();
1899
1900 #ifdef FILEDEBUG
1901                 debugToken(cerr, t, flags);
1902 #endif
1903
1904                 if (flags & FLAG_ITEM) {
1905                         if (t.cat() == catSpace)
1906                                 continue;
1907
1908                         flags &= ~FLAG_ITEM;
1909                         if (t.cat() == catBegin) {
1910                                 // skip the brace and collect everything to the next matching
1911                                 // closing brace
1912                                 flags |= FLAG_BRACE_LAST;
1913                                 continue;
1914                         }
1915
1916                         // handle only this single token, leave the loop if done
1917                         flags |= FLAG_LEAVE;
1918                 }
1919
1920                 if (t.cat() != catEscape && t.character() == ']' &&
1921                     (flags & FLAG_BRACK_LAST))
1922                         return;
1923                 if (t.cat() == catEnd && (flags & FLAG_BRACE_LAST))
1924                         return;
1925
1926                 // If there is anything between \end{env} and \begin{env} we
1927                 // don't need to output a separator.
1928                 if (t.cat() != catSpace && t.cat() != catNewline &&
1929                     t.asInput() != "\\begin")
1930                         last_env = "";
1931
1932                 //
1933                 // cat codes
1934                 //
1935                 if (t.cat() == catMath) {
1936                         // we are inside some text mode thingy, so opening new math is allowed
1937                         context.check_layout(os);
1938                         begin_inset(os, "Formula ");
1939                         Token const & n = p.get_token();
1940                         bool const display(n.cat() == catMath && outer);
1941                         if (display) {
1942                                 // TeX's $$...$$ syntax for displayed math
1943                                 os << "\\[";
1944                                 parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
1945                                 os << "\\]";
1946                                 p.get_token(); // skip the second '$' token
1947                         } else {
1948                                 // simple $...$  stuff
1949                                 p.putback();
1950                                 os << '$';
1951                                 parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
1952                                 os << '$';
1953                         }
1954                         end_inset(os);
1955                         if (display) {
1956                                 // Prevent the conversion of a line break to a
1957                                 // space (bug 7668). This does not change the
1958                                 // output, but looks ugly in LyX.
1959                                 eat_whitespace(p, os, context, false);
1960                         }
1961                 }
1962
1963                 else if (t.cat() == catSuper || t.cat() == catSub)
1964                         cerr << "catcode " << t << " illegal in text mode\n";
1965
1966                 // Basic support for english quotes. This should be
1967                 // extended to other quotes, but is not so easy (a
1968                 // left english quote is the same as a right german
1969                 // quote...)
1970                 else if (t.asInput() == "`" && p.next_token().asInput() == "`") {
1971                         context.check_layout(os);
1972                         begin_inset(os, "Quotes ");
1973                         os << "eld";
1974                         end_inset(os);
1975                         p.get_token();
1976                         skip_braces(p);
1977                 }
1978                 else if (t.asInput() == "'" && p.next_token().asInput() == "'") {
1979                         context.check_layout(os);
1980                         begin_inset(os, "Quotes ");
1981                         os << "erd";
1982                         end_inset(os);
1983                         p.get_token();
1984                         skip_braces(p);
1985                 }
1986
1987                 else if (t.asInput() == ">" && p.next_token().asInput() == ">") {
1988                         context.check_layout(os);
1989                         begin_inset(os, "Quotes ");
1990                         os << "ald";
1991                         end_inset(os);
1992                         p.get_token();
1993                         skip_braces(p);
1994                 }
1995
1996                 else if (t.asInput() == "<" && p.next_token().asInput() == "<") {
1997                         context.check_layout(os);
1998                         begin_inset(os, "Quotes ");
1999                         os << "ard";
2000                         end_inset(os);
2001                         p.get_token();
2002                         skip_braces(p);
2003                 }
2004
2005                 else if (t.asInput() == "<"
2006                          && p.next_token().asInput() == "<" && noweb_mode) {
2007                         p.get_token();
2008                         parse_noweb(p, os, context);
2009                 }
2010
2011                 else if (t.cat() == catSpace || (t.cat() == catNewline && ! p.isParagraph()))
2012                         check_space(p, os, context);
2013
2014                 else if (t.character() == '[' && noweb_mode &&
2015                          p.next_token().character() == '[') {
2016                         // These can contain underscores
2017                         p.putback();
2018                         string const s = p.getFullOpt() + ']';
2019                         if (p.next_token().character() == ']')
2020                                 p.get_token();
2021                         else
2022                                 cerr << "Warning: Inserting missing ']' in '"
2023                                      << s << "'." << endl;
2024                         handle_ert(os, s, context);
2025                 }
2026
2027                 else if (t.cat() == catLetter) {
2028                         context.check_layout(os);
2029                         // Workaround for bug 4752.
2030                         // FIXME: This whole code block needs to be removed
2031                         //        when the bug is fixed and tex2lyx produces
2032                         //        the updated file format.
2033                         // The replacement algorithm in LyX is so stupid that
2034                         // it even translates a phrase if it is part of a word.
2035                         bool handled = false;
2036                         for (int const * l = known_phrase_lengths; *l; ++l) {
2037                                 string phrase = t.cs();
2038                                 for (int i = 1; i < *l && p.next_token().isAlnumASCII(); ++i)
2039                                         phrase += p.get_token().cs();
2040                                 if (is_known(phrase, known_coded_phrases)) {
2041                                         handle_ert(os, phrase, context);
2042                                         handled = true;
2043                                         break;
2044                                 } else {
2045                                         for (size_t i = 1; i < phrase.length(); ++i)
2046                                                 p.putback();
2047                                 }
2048                         }
2049                         if (!handled)
2050                                 os << t.cs();
2051                 }
2052
2053                 else if (t.cat() == catOther ||
2054                                t.cat() == catAlign ||
2055                                t.cat() == catParameter) {
2056                         // This translates "&" to "\\&" which may be wrong...
2057                         context.check_layout(os);
2058                         os << t.cs();
2059                 }
2060
2061                 else if (p.isParagraph()) {
2062                         if (context.new_layout_allowed)
2063                                 context.new_paragraph(os);
2064                         else
2065                                 handle_ert(os, "\\par ", context);
2066                         eat_whitespace(p, os, context, true);
2067                 }
2068
2069                 else if (t.cat() == catActive) {
2070                         context.check_layout(os);
2071                         if (t.character() == '~') {
2072                                 if (context.layout->free_spacing)
2073                                         os << ' ';
2074                                 else {
2075                                         begin_inset(os, "space ~\n");
2076                                         end_inset(os);
2077                                 }
2078                         } else
2079                                 os << t.cs();
2080                 }
2081
2082                 else if (t.cat() == catBegin &&
2083                          p.next_token().cat() == catEnd) {
2084                         // {}
2085                         Token const prev = p.prev_token();
2086                         p.get_token();
2087                         if (p.next_token().character() == '`' ||
2088                             (prev.character() == '-' &&
2089                              p.next_token().character() == '-'))
2090                                 ; // ignore it in {}`` or -{}-
2091                         else
2092                                 handle_ert(os, "{}", context);
2093
2094                 }
2095
2096                 else if (t.cat() == catBegin) {
2097                         context.check_layout(os);
2098                         // special handling of font attribute changes
2099                         Token const prev = p.prev_token();
2100                         Token const next = p.next_token();
2101                         TeXFont const oldFont = context.font;
2102                         if (next.character() == '[' ||
2103                             next.character() == ']' ||
2104                             next.character() == '*') {
2105                                 p.get_token();
2106                                 if (p.next_token().cat() == catEnd) {
2107                                         os << next.cs();
2108                                         p.get_token();
2109                                 } else {
2110                                         p.putback();
2111                                         handle_ert(os, "{", context);
2112                                         parse_text_snippet(p, os,
2113                                                         FLAG_BRACE_LAST,
2114                                                         outer, context);
2115                                         handle_ert(os, "}", context);
2116                                 }
2117                         } else if (! context.new_layout_allowed) {
2118                                 handle_ert(os, "{", context);
2119                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
2120                                                    outer, context);
2121                                 handle_ert(os, "}", context);
2122                         } else if (is_known(next.cs(), known_sizes)) {
2123                                 // next will change the size, so we must
2124                                 // reset it here
2125                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
2126                                                    outer, context);
2127                                 if (!context.atParagraphStart())
2128                                         os << "\n\\size "
2129                                            << context.font.size << "\n";
2130                         } else if (is_known(next.cs(), known_font_families)) {
2131                                 // next will change the font family, so we
2132                                 // must reset it here
2133                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
2134                                                    outer, context);
2135                                 if (!context.atParagraphStart())
2136                                         os << "\n\\family "
2137                                            << context.font.family << "\n";
2138                         } else if (is_known(next.cs(), known_font_series)) {
2139                                 // next will change the font series, so we
2140                                 // must reset it here
2141                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
2142                                                    outer, context);
2143                                 if (!context.atParagraphStart())
2144                                         os << "\n\\series "
2145                                            << context.font.series << "\n";
2146                         } else if (is_known(next.cs(), known_font_shapes)) {
2147                                 // next will change the font shape, so we
2148                                 // must reset it here
2149                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
2150                                                    outer, context);
2151                                 if (!context.atParagraphStart())
2152                                         os << "\n\\shape "
2153                                            << context.font.shape << "\n";
2154                         } else if (is_known(next.cs(), known_old_font_families) ||
2155                                    is_known(next.cs(), known_old_font_series) ||
2156                                    is_known(next.cs(), known_old_font_shapes)) {
2157                                 // next will change the font family, series
2158                                 // and shape, so we must reset it here
2159                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
2160                                                    outer, context);
2161                                 if (!context.atParagraphStart())
2162                                         os <<  "\n\\family "
2163                                            << context.font.family
2164                                            << "\n\\series "
2165                                            << context.font.series
2166                                            << "\n\\shape "
2167                                            << context.font.shape << "\n";
2168                         } else {
2169                                 handle_ert(os, "{", context);
2170                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
2171                                                    outer, context);
2172                                 handle_ert(os, "}", context);
2173                         }
2174                 }
2175
2176                 else if (t.cat() == catEnd) {
2177                         if (flags & FLAG_BRACE_LAST) {
2178                                 return;
2179                         }
2180                         cerr << "stray '}' in text\n";
2181                         handle_ert(os, "}", context);
2182                 }
2183
2184                 else if (t.cat() == catComment)
2185                         parse_comment(p, os, t, context);
2186
2187                 //
2188                 // control sequences
2189                 //
2190
2191                 else if (t.cs() == "(") {
2192                         context.check_layout(os);
2193                         begin_inset(os, "Formula");
2194                         os << " \\(";
2195                         parse_math(p, os, FLAG_SIMPLE2, MATH_MODE);
2196                         os << "\\)";
2197                         end_inset(os);
2198                 }
2199
2200                 else if (t.cs() == "[") {
2201                         context.check_layout(os);
2202                         begin_inset(os, "Formula");
2203                         os << " \\[";
2204                         parse_math(p, os, FLAG_EQUATION, MATH_MODE);
2205                         os << "\\]";
2206                         end_inset(os);
2207                         // Prevent the conversion of a line break to a space
2208                         // (bug 7668). This does not change the output, but
2209                         // looks ugly in LyX.
2210                         eat_whitespace(p, os, context, false);
2211                 }
2212
2213                 else if (t.cs() == "begin")
2214                         parse_environment(p, os, outer, last_env,
2215                                           title_layout_found, context);
2216
2217                 else if (t.cs() == "end") {
2218                         if (flags & FLAG_END) {
2219                                 // eat environment name
2220                                 string const name = p.getArg('{', '}');
2221                                 if (name != active_environment())
2222                                         cerr << "\\end{" + name + "} does not match \\begin{"
2223                                                 + active_environment() + "}\n";
2224                                 return;
2225                         }
2226                         p.error("found 'end' unexpectedly");
2227                 }
2228
2229                 else if (t.cs() == "item") {
2230                         string s;
2231                         bool const optarg = p.hasOpt();
2232                         if (optarg) {
2233                                 // FIXME: This swallows comments, but we cannot use
2234                                 //        eat_whitespace() since we must not output
2235                                 //        anything before the item.
2236                                 s = p.getArg('[', ']');
2237                         } else
2238                                 p.skip_spaces(false);
2239                         context.set_item();
2240                         context.check_layout(os);
2241                         if (context.has_item) {
2242                                 // An item in an unknown list-like environment
2243                                 // FIXME: Do this in check_layout()!
2244                                 context.has_item = false;
2245                                 if (optarg)
2246                                         handle_ert(os, "\\item", context);
2247                                 else
2248                                         handle_ert(os, "\\item ", context);
2249                         }
2250                         if (optarg) {
2251                                 if (context.layout->labeltype != LABEL_MANUAL) {
2252                                         // LyX does not support \item[\mybullet]
2253                                         // in itemize environments
2254                                         Parser p2(s + ']');
2255                                         os << parse_text_snippet(p2,
2256                                                 FLAG_BRACK_LAST, outer, context);
2257                                 } else if (!s.empty()) {
2258                                         // LyX adds braces around the argument,
2259                                         // so we need to remove them here.
2260                                         if (s.size() > 2 && s[0] == '{' &&
2261                                             s[s.size()-1] == '}')
2262                                                 s = s.substr(1, s.size()-2);
2263                                         // If the argument contains a space we
2264                                         // must put it into ERT: Otherwise LyX
2265                                         // would misinterpret the space as
2266                                         // item delimiter (bug 7663)
2267                                         if (contains(s, ' ')) {
2268                                                 handle_ert(os, s, context);
2269                                         } else {
2270                                                 Parser p2(s + ']');
2271                                                 os << parse_text_snippet(p2,
2272                                                         FLAG_BRACK_LAST,
2273                                                         outer, context);
2274                                         }
2275                                         // The space is needed to separate the
2276                                         // item from the rest of the sentence.
2277                                         os << ' ';
2278                                         eat_whitespace(p, os, context, false);
2279                                 }
2280                         }
2281                 }
2282
2283                 else if (t.cs() == "bibitem") {
2284                         context.set_item();
2285                         context.check_layout(os);
2286                         string label = convert_command_inset_arg(p.getArg('[', ']'));
2287                         string key = convert_command_inset_arg(p.verbatim_item());
2288                         if (contains(label, '\\') || contains(key, '\\')) {
2289                                 // LyX can't handle LaTeX commands in labels or keys
2290                                 handle_ert(os, t.asInput() + '[' + label +
2291                                                "]{" + p.verbatim_item() + '}',
2292                                            context);
2293                         } else {
2294                                 begin_command_inset(os, "bibitem", "bibitem");
2295                                 os << "label \"" << label << "\"\n"
2296                                       "key \"" << key << "\"\n";
2297                                 end_inset(os);
2298                         }
2299                 }
2300
2301                 else if (is_macro(p))
2302                         parse_macro(p, os, context);
2303
2304                 else if (t.cs() == "noindent") {
2305                         p.skip_spaces();
2306                         context.add_par_extra_stuff("\\noindent\n");
2307                 }
2308
2309                 else if (t.cs() == "appendix") {
2310                         context.add_par_extra_stuff("\\start_of_appendix\n");
2311                         // We need to start a new paragraph. Otherwise the
2312                         // appendix in 'bla\appendix\chapter{' would start
2313                         // too late.
2314                         context.new_paragraph(os);
2315                         // We need to make sure that the paragraph is
2316                         // generated even if it is empty. Otherwise the
2317                         // appendix in '\par\appendix\par\chapter{' would
2318                         // start too late.
2319                         context.check_layout(os);
2320                         // FIXME: This is a hack to prevent paragraph
2321                         // deletion if it is empty. Handle this better!
2322                         handle_comment(os,
2323                                 "%dummy comment inserted by tex2lyx to "
2324                                 "ensure that this paragraph is not empty",
2325                                 context);
2326                         // Both measures above may generate an additional
2327                         // empty paragraph, but that does not hurt, because
2328                         // whitespace does not matter here.
2329                         eat_whitespace(p, os, context, true);
2330                 }
2331
2332                 // Must catch empty dates before findLayout is called below
2333                 else if (t.cs() == "date") {
2334                         string const date = p.verbatim_item();
2335                         if (date.empty())
2336                                 preamble.suppressDate(true);
2337                         else {
2338                                 preamble.suppressDate(false);
2339                                 if (context.new_layout_allowed &&
2340                                     (newlayout = findLayout(context.textclass,
2341                                                             t.cs(), true))) {
2342                                         // write the layout
2343                                         output_command_layout(os, p, outer,
2344                                                         context, newlayout);
2345                                         p.skip_spaces();
2346                                         if (!title_layout_found)
2347                                                 title_layout_found = newlayout->intitle;
2348                                 } else
2349                                         handle_ert(os, "\\date{" + date + '}',
2350                                                         context);
2351                         }
2352                 }
2353
2354                 // Starred section headings
2355                 // Must attempt to parse "Section*" before "Section".
2356                 else if ((p.next_token().asInput() == "*") &&
2357                          context.new_layout_allowed &&
2358                          (newlayout = findLayout(context.textclass, t.cs() + '*', true))) {
2359                         // write the layout
2360                         p.get_token();
2361                         output_command_layout(os, p, outer, context, newlayout);
2362                         p.skip_spaces();
2363                         if (!title_layout_found)
2364                                 title_layout_found = newlayout->intitle;
2365                 }
2366
2367                 // Section headings and the like
2368                 else if (context.new_layout_allowed &&
2369                          (newlayout = findLayout(context.textclass, t.cs(), true))) {
2370                         // write the layout
2371                         output_command_layout(os, p, outer, context, newlayout);
2372                         p.skip_spaces();
2373                         if (!title_layout_found)
2374                                 title_layout_found = newlayout->intitle;
2375                 }
2376
2377                 else if (t.cs() == "caption") {
2378                         p.skip_spaces();
2379                         context.check_layout(os);
2380                         p.skip_spaces();
2381                         begin_inset(os, "Caption\n");
2382                         Context newcontext(true, context.textclass);
2383                         newcontext.font = context.font;
2384                         newcontext.check_layout(os);
2385                         if (p.next_token().cat() != catEscape &&
2386                             p.next_token().character() == '[') {
2387                                 p.get_token(); // eat '['
2388                                 begin_inset(os, "Argument\n");
2389                                 os << "status collapsed\n";
2390                                 parse_text_in_inset(p, os, FLAG_BRACK_LAST, outer, context);
2391                                 end_inset(os);
2392                                 eat_whitespace(p, os, context, false);
2393                         }
2394                         parse_text(p, os, FLAG_ITEM, outer, context);
2395                         context.check_end_layout(os);
2396                         // We don't need really a new paragraph, but
2397                         // we must make sure that the next item gets a \begin_layout.
2398                         context.new_paragraph(os);
2399                         end_inset(os);
2400                         p.skip_spaces();
2401                         newcontext.check_end_layout(os);
2402                 }
2403
2404                 else if (t.cs() == "subfloat") {
2405                         // the syntax is \subfloat[caption]{content}
2406                         // if it is a table of figure depends on the surrounding float
2407                         bool has_caption = false;
2408                         p.skip_spaces();
2409                         // do nothing if there is no outer float
2410                         if (!float_type.empty()) {
2411                                 context.check_layout(os);
2412                                 p.skip_spaces();
2413                                 begin_inset(os, "Float " + float_type + "\n");
2414                                 os << "wide false"
2415                                    << "\nsideways false"
2416                                    << "\nstatus collapsed\n\n";
2417                                 // test for caption
2418                                 string caption;
2419                                 if (p.next_token().cat() != catEscape &&
2420                                                 p.next_token().character() == '[') {
2421                                                         p.get_token(); // eat '['
2422                                                         caption = parse_text_snippet(p, FLAG_BRACK_LAST, outer, context);
2423                                                         has_caption = true;
2424                                 }
2425                                 // the content
2426                                 parse_text_in_inset(p, os, FLAG_ITEM, outer, context);
2427                                 // the caption comes always as the last
2428                                 if (has_caption) {
2429                                         // we must make sure that the caption gets a \begin_layout
2430                                         os << "\n\\begin_layout Plain Layout";
2431                                         p.skip_spaces();
2432                                         begin_inset(os, "Caption\n");
2433                                         Context newcontext(true, context.textclass);
2434                                         newcontext.font = context.font;
2435                                         newcontext.check_layout(os);
2436                                         os << caption << "\n";
2437                                         newcontext.check_end_layout(os);
2438                                         // We don't need really a new paragraph, but
2439                                         // we must make sure that the next item gets a \begin_layout.
2440                                         //newcontext.new_paragraph(os);
2441                                         end_inset(os);
2442                                         p.skip_spaces();
2443                                 }
2444                                 // We don't need really a new paragraph, but
2445                                 // we must make sure that the next item gets a \begin_layout.
2446                                 if (has_caption)
2447                                         context.new_paragraph(os);
2448                                 end_inset(os);
2449                                 p.skip_spaces();
2450                                 context.check_end_layout(os);
2451                                 // close the layout we opened
2452                                 if (has_caption)
2453                                         os << "\n\\end_layout\n";
2454                         } else {
2455                                 // if the float type is not supported or there is no surrounding float
2456                                 // output it as ERT
2457                                 if (p.hasOpt()) {
2458                                         string opt_arg = convert_command_inset_arg(p.getArg('[', ']'));
2459                                         handle_ert(os, t.asInput() + '[' + opt_arg +
2460                                                "]{" + p.verbatim_item() + '}', context);
2461                                 } else
2462                                         handle_ert(os, t.asInput() + "{" + p.verbatim_item() + '}', context);
2463                         }
2464                 }
2465
2466                 else if (t.cs() == "includegraphics") {
2467                         bool const clip = p.next_token().asInput() == "*";
2468                         if (clip)
2469                                 p.get_token();
2470                         string const arg = p.getArg('[', ']');
2471                         map<string, string> opts;
2472                         vector<string> keys;
2473                         split_map(arg, opts, keys);
2474                         if (clip)
2475                                 opts["clip"] = string();
2476                         string name = normalize_filename(p.verbatim_item());
2477
2478                         string const path = getMasterFilePath();
2479                         // We want to preserve relative / absolute filenames,
2480                         // therefore path is only used for testing
2481                         if (!makeAbsPath(name, path).exists()) {
2482                                 // The file extension is probably missing.
2483                                 // Now try to find it out.
2484                                 string const dvips_name =
2485                                         find_file(name, path,
2486                                                   known_dvips_graphics_formats);
2487                                 string const pdftex_name =
2488                                         find_file(name, path,
2489                                                   known_pdftex_graphics_formats);
2490                                 if (!dvips_name.empty()) {
2491                                         if (!pdftex_name.empty()) {
2492                                                 cerr << "This file contains the "
2493                                                         "latex snippet\n"
2494                                                         "\"\\includegraphics{"
2495                                                      << name << "}\".\n"
2496                                                         "However, files\n\""
2497                                                      << dvips_name << "\" and\n\""
2498                                                      << pdftex_name << "\"\n"
2499                                                         "both exist, so I had to make a "
2500                                                         "choice and took the first one.\n"
2501                                                         "Please move the unwanted one "
2502                                                         "someplace else and try again\n"
2503                                                         "if my choice was wrong."
2504                                                      << endl;
2505                                         }
2506                                         name = dvips_name;
2507                                 } else if (!pdftex_name.empty()) {
2508                                         name = pdftex_name;
2509                                         pdflatex = true;
2510                                 }
2511                         }
2512
2513                         if (makeAbsPath(name, path).exists())
2514                                 fix_relative_filename(name);
2515                         else
2516                                 cerr << "Warning: Could not find graphics file '"
2517                                      << name << "'." << endl;
2518
2519                         context.check_layout(os);
2520                         begin_inset(os, "Graphics ");
2521                         os << "\n\tfilename " << name << '\n';
2522                         if (opts.find("width") != opts.end())
2523                                 os << "\twidth "
2524                                    << translate_len(opts["width"]) << '\n';
2525                         if (opts.find("height") != opts.end())
2526                                 os << "\theight "
2527                                    << translate_len(opts["height"]) << '\n';
2528                         if (opts.find("scale") != opts.end()) {
2529                                 istringstream iss(opts["scale"]);
2530                                 double val;
2531                                 iss >> val;
2532                                 val = val*100;
2533                                 os << "\tscale " << val << '\n';
2534                         }
2535                         if (opts.find("angle") != opts.end()) {
2536                                 os << "\trotateAngle "
2537                                    << opts["angle"] << '\n';
2538                                 vector<string>::const_iterator a =
2539                                         find(keys.begin(), keys.end(), "angle");
2540                                 vector<string>::const_iterator s =
2541                                         find(keys.begin(), keys.end(), "width");
2542                                 if (s == keys.end())
2543                                         s = find(keys.begin(), keys.end(), "height");
2544                                 if (s == keys.end())
2545                                         s = find(keys.begin(), keys.end(), "scale");
2546                                 if (s != keys.end() && distance(s, a) > 0)
2547                                         os << "\tscaleBeforeRotation\n";
2548                         }
2549                         if (opts.find("origin") != opts.end()) {
2550                                 ostringstream ss;
2551                                 string const opt = opts["origin"];
2552                                 if (opt.find('l') != string::npos) ss << "left";
2553                                 if (opt.find('r') != string::npos) ss << "right";
2554                                 if (opt.find('c') != string::npos) ss << "center";
2555                                 if (opt.find('t') != string::npos) ss << "Top";
2556                                 if (opt.find('b') != string::npos) ss << "Bottom";
2557                                 if (opt.find('B') != string::npos) ss << "Baseline";
2558                                 if (!ss.str().empty())
2559                                         os << "\trotateOrigin " << ss.str() << '\n';
2560                                 else
2561                                         cerr << "Warning: Ignoring unknown includegraphics origin argument '" << opt << "'\n";
2562                         }
2563                         if (opts.find("keepaspectratio") != opts.end())
2564                                 os << "\tkeepAspectRatio\n";
2565                         if (opts.find("clip") != opts.end())
2566                                 os << "\tclip\n";
2567                         if (opts.find("draft") != opts.end())
2568                                 os << "\tdraft\n";
2569                         if (opts.find("bb") != opts.end())
2570                                 os << "\tBoundingBox "
2571                                    << opts["bb"] << '\n';
2572                         int numberOfbbOptions = 0;
2573                         if (opts.find("bbllx") != opts.end())
2574                                 numberOfbbOptions++;
2575                         if (opts.find("bblly") != opts.end())
2576                                 numberOfbbOptions++;
2577                         if (opts.find("bburx") != opts.end())
2578                                 numberOfbbOptions++;
2579                         if (opts.find("bbury") != opts.end())
2580                                 numberOfbbOptions++;
2581                         if (numberOfbbOptions == 4)
2582                                 os << "\tBoundingBox "
2583                                    << opts["bbllx"] << " " << opts["bblly"] << " "
2584                                    << opts["bburx"] << " " << opts["bbury"] << '\n';
2585                         else if (numberOfbbOptions > 0)
2586                                 cerr << "Warning: Ignoring incomplete includegraphics boundingbox arguments.\n";
2587                         numberOfbbOptions = 0;
2588                         if (opts.find("natwidth") != opts.end())
2589                                 numberOfbbOptions++;
2590                         if (opts.find("natheight") != opts.end())
2591                                 numberOfbbOptions++;
2592                         if (numberOfbbOptions == 2)
2593                                 os << "\tBoundingBox 0bp 0bp "
2594                                    << opts["natwidth"] << " " << opts["natheight"] << '\n';
2595                         else if (numberOfbbOptions > 0)
2596                                 cerr << "Warning: Ignoring incomplete includegraphics boundingbox arguments.\n";
2597                         ostringstream special;
2598                         if (opts.find("hiresbb") != opts.end())
2599                                 special << "hiresbb,";
2600                         if (opts.find("trim") != opts.end())
2601                                 special << "trim,";
2602                         if (opts.find("viewport") != opts.end())
2603                                 special << "viewport=" << opts["viewport"] << ',';
2604                         if (opts.find("totalheight") != opts.end())
2605                                 special << "totalheight=" << opts["totalheight"] << ',';
2606                         if (opts.find("type") != opts.end())
2607                                 special << "type=" << opts["type"] << ',';
2608                         if (opts.find("ext") != opts.end())
2609                                 special << "ext=" << opts["ext"] << ',';
2610                         if (opts.find("read") != opts.end())
2611                                 special << "read=" << opts["read"] << ',';
2612                         if (opts.find("command") != opts.end())
2613                                 special << "command=" << opts["command"] << ',';
2614                         string s_special = special.str();
2615                         if (!s_special.empty()) {
2616                                 // We had special arguments. Remove the trailing ','.
2617                                 os << "\tspecial " << s_special.substr(0, s_special.size() - 1) << '\n';
2618                         }
2619                         // TODO: Handle the unknown settings better.
2620                         // Warn about invalid options.
2621                         // Check whether some option was given twice.
2622                         end_inset(os);
2623                 }
2624
2625                 else if (t.cs() == "footnote" ||
2626                          (t.cs() == "thanks" && context.layout->intitle)) {
2627                         p.skip_spaces();
2628                         context.check_layout(os);
2629                         begin_inset(os, "Foot\n");
2630                         os << "status collapsed\n\n";
2631                         parse_text_in_inset(p, os, FLAG_ITEM, false, context);
2632                         end_inset(os);
2633                 }
2634
2635                 else if (t.cs() == "marginpar") {
2636                         p.skip_spaces();
2637                         context.check_layout(os);
2638                         begin_inset(os, "Marginal\n");
2639                         os << "status collapsed\n\n";
2640                         parse_text_in_inset(p, os, FLAG_ITEM, false, context);
2641                         end_inset(os);
2642                 }
2643
2644                 else if (t.cs() == "ensuremath") {
2645                         p.skip_spaces();
2646                         context.check_layout(os);
2647                         string const s = p.verbatim_item();
2648                         //FIXME: this never triggers in UTF8
2649                         if (s == "\xb1" || s == "\xb3" || s == "\xb2" || s == "\xb5")
2650                                 os << s;
2651                         else
2652                                 handle_ert(os, "\\ensuremath{" + s + "}",
2653                                            context);
2654                 }
2655
2656                 else if (t.cs() == "makeindex" || t.cs() == "maketitle") {
2657                         if (title_layout_found) {
2658                                 // swallow this
2659                                 skip_spaces_braces(p);
2660                         } else
2661                                 handle_ert(os, t.asInput(), context);
2662                 }
2663
2664                 else if (t.cs() == "tableofcontents") {
2665                         context.check_layout(os);
2666                         begin_command_inset(os, "toc", "tableofcontents");
2667                         end_inset(os);
2668                         skip_spaces_braces(p);
2669                 }
2670
2671                 else if (t.cs() == "listoffigures") {
2672                         context.check_layout(os);
2673                         begin_inset(os, "FloatList figure\n");
2674                         end_inset(os);
2675                         skip_spaces_braces(p);
2676                 }
2677
2678                 else if (t.cs() == "listoftables") {
2679                         context.check_layout(os);
2680                         begin_inset(os, "FloatList table\n");
2681                         end_inset(os);
2682                         skip_spaces_braces(p);
2683                 }
2684
2685                 else if (t.cs() == "listof") {
2686                         p.skip_spaces(true);
2687                         string const name = p.get_token().cs();
2688                         if (context.textclass.floats().typeExist(name)) {
2689                                 context.check_layout(os);
2690                                 begin_inset(os, "FloatList ");
2691                                 os << name << "\n";
2692                                 end_inset(os);
2693                                 p.get_token(); // swallow second arg
2694                         } else
2695                                 handle_ert(os, "\\listof{" + name + "}", context);
2696                 }
2697
2698                 else if ((where = is_known(t.cs(), known_text_font_families)))
2699                         parse_text_attributes(p, os, FLAG_ITEM, outer,
2700                                 context, "\\family", context.font.family,
2701                                 known_coded_font_families[where - known_text_font_families]);
2702
2703                 else if ((where = is_known(t.cs(), known_text_font_series)))
2704                         parse_text_attributes(p, os, FLAG_ITEM, outer,
2705                                 context, "\\series", context.font.series,
2706                                 known_coded_font_series[where - known_text_font_series]);
2707
2708                 else if ((where = is_known(t.cs(), known_text_font_shapes)))
2709                         parse_text_attributes(p, os, FLAG_ITEM, outer,
2710                                 context, "\\shape", context.font.shape,
2711                                 known_coded_font_shapes[where - known_text_font_shapes]);
2712
2713                 else if (t.cs() == "textnormal" || t.cs() == "normalfont") {
2714                         context.check_layout(os);
2715                         TeXFont oldFont = context.font;
2716                         context.font.init();
2717                         context.font.size = oldFont.size;
2718                         os << "\n\\family " << context.font.family << "\n";
2719                         os << "\n\\series " << context.font.series << "\n";
2720                         os << "\n\\shape " << context.font.shape << "\n";
2721                         if (t.cs() == "textnormal") {
2722                                 parse_text_snippet(p, os, FLAG_ITEM, outer, context);
2723                                 output_font_change(os, context.font, oldFont);
2724                                 context.font = oldFont;
2725                         } else
2726                                 eat_whitespace(p, os, context, false);
2727                 }
2728
2729                 else if (t.cs() == "textcolor") {
2730                         // scheme is \textcolor{color name}{text}
2731                         string const color = p.verbatim_item();
2732                         // we only support the predefined colors of the color package
2733                         if (color == "black" || color == "blue" || color == "cyan"
2734                                 || color == "green" || color == "magenta" || color == "red"
2735                                 || color == "white" || color == "yellow") {
2736                                         context.check_layout(os);
2737                                         os << "\n\\color " << color << "\n";
2738                                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
2739                                         context.check_layout(os);
2740                                         os << "\n\\color inherit\n";
2741                                         preamble.registerAutomaticallyLoadedPackage("color");
2742                         } else
2743                                 // for custom defined colors
2744                                 handle_ert(os, t.asInput() + "{" + color + "}", context);
2745                 }
2746
2747                 else if (t.cs() == "underbar" || t.cs() == "uline") {
2748                         // \underbar is not 100% correct (LyX outputs \uline
2749                         // of ulem.sty). The difference is that \ulem allows
2750                         // line breaks, and \underbar does not.
2751                         // Do NOT handle \underline.
2752                         // \underbar cuts through y, g, q, p etc.,
2753                         // \underline does not.
2754                         context.check_layout(os);
2755                         os << "\n\\bar under\n";
2756                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
2757                         context.check_layout(os);
2758                         os << "\n\\bar default\n";
2759                         preamble.registerAutomaticallyLoadedPackage("ulem");
2760                 }
2761
2762                 else if (t.cs() == "sout") {
2763                         context.check_layout(os);
2764                         os << "\n\\strikeout on\n";
2765                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
2766                         context.check_layout(os);
2767                         os << "\n\\strikeout default\n";
2768                         preamble.registerAutomaticallyLoadedPackage("ulem");
2769                 }
2770
2771                 else if (t.cs() == "uuline" || t.cs() == "uwave" ||
2772                          t.cs() == "emph" || t.cs() == "noun") {
2773                         context.check_layout(os);
2774                         os << "\n\\" << t.cs() << " on\n";
2775                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
2776                         context.check_layout(os);
2777                         os << "\n\\" << t.cs() << " default\n";
2778                         if (t.cs() == "uuline" || t.cs() == "uwave")
2779                                 preamble.registerAutomaticallyLoadedPackage("ulem");
2780                 }
2781
2782                 else if (t.cs() == "lyxadded" || t.cs() == "lyxdeleted") {
2783                         context.check_layout(os);
2784                         string name = p.getArg('{', '}');
2785                         string localtime = p.getArg('{', '}');
2786                         preamble.registerAuthor(name);
2787                         Author const & author = preamble.getAuthor(name);
2788                         // from_ctime() will fail if LyX decides to output the
2789                         // time in the text language. It might also use a wrong
2790                         // time zone (if the original LyX document was exported
2791                         // with a different time zone).
2792                         time_t ptime = from_ctime(localtime);
2793                         if (ptime == static_cast<time_t>(-1)) {
2794                                 cerr << "Warning: Could not parse time `" << localtime
2795                                      << "´ for change tracking, using current time instead.\n";
2796                                 ptime = current_time();
2797                         }
2798                         if (t.cs() == "lyxadded")
2799                                 os << "\n\\change_inserted ";
2800                         else
2801                                 os << "\n\\change_deleted ";
2802                         os << author.bufferId() << ' ' << ptime << '\n';
2803                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
2804                         bool dvipost    = LaTeXPackages::isAvailable("dvipost");
2805                         bool xcolorulem = LaTeXPackages::isAvailable("ulem") &&
2806                                           LaTeXPackages::isAvailable("xcolor");
2807                         // No need to test for luatex, since luatex comes in
2808                         // two flavours (dvi and pdf), like latex, and those
2809                         // are detected by pdflatex.
2810                         if (pdflatex || xetex) {
2811                                 if (xcolorulem) {
2812                                         preamble.registerAutomaticallyLoadedPackage("ulem");
2813                                         preamble.registerAutomaticallyLoadedPackage("xcolor");
2814                                         preamble.registerAutomaticallyLoadedPackage("pdfcolmk");
2815                                 }
2816                         } else {
2817                                 if (dvipost) {
2818                                         preamble.registerAutomaticallyLoadedPackage("dvipost");
2819                                 } else if (xcolorulem) {
2820                                         preamble.registerAutomaticallyLoadedPackage("ulem");
2821                                         preamble.registerAutomaticallyLoadedPackage("xcolor");
2822                                 }
2823                         }
2824                 }
2825
2826                 else if (t.cs() == "phantom" || t.cs() == "hphantom" ||
2827                              t.cs() == "vphantom") {
2828                         context.check_layout(os);
2829                         if (t.cs() == "phantom")
2830                                 begin_inset(os, "Phantom Phantom\n");
2831                         if (t.cs() == "hphantom")
2832                                 begin_inset(os, "Phantom HPhantom\n");
2833                         if (t.cs() == "vphantom")
2834                                 begin_inset(os, "Phantom VPhantom\n");
2835                         os << "status open\n";
2836                         parse_text_in_inset(p, os, FLAG_ITEM, outer, context,
2837                                             "Phantom");
2838                         end_inset(os);
2839                 }
2840
2841                 else if (t.cs() == "href") {
2842                         context.check_layout(os);
2843                         string target = p.getArg('{', '}');
2844                         string name = p.getArg('{', '}');
2845                         string type;
2846                         size_t i = target.find(':');
2847                         if (i != string::npos) {
2848                                 type = target.substr(0, i + 1);
2849                                 if (type == "mailto:" || type == "file:")
2850                                         target = target.substr(i + 1);
2851                                 // handle the case that name is equal to target, except of "http://"
2852                                 else if (target.substr(i + 3) == name && type == "http:")
2853                                         target = name;
2854                         }
2855                         begin_command_inset(os, "href", "href");
2856                         if (name != target)
2857                                 os << "name \"" << name << "\"\n";
2858                         os << "target \"" << target << "\"\n";
2859                         if (type == "mailto:" || type == "file:")
2860                                 os << "type \"" << type << "\"\n";
2861                         end_inset(os);
2862                         skip_spaces_braces(p);
2863                 }
2864
2865                 else if (t.cs() == "lyxline") {
2866                         // swallow size argument (it is not used anyway)
2867                         p.getArg('{', '}');
2868                         if (!context.atParagraphStart()) {
2869                                 // so our line is in the middle of a paragraph
2870                                 // we need to add a new line, lest this line
2871                                 // follow the other content on that line and
2872                                 // run off the side of the page
2873                                 // FIXME: This may create an empty paragraph,
2874                                 //        but without that it would not be
2875                                 //        possible to set noindent below.
2876                                 //        Fortunately LaTeX does not care
2877                                 //        about the empty paragraph.
2878                                 context.new_paragraph(os);
2879                         }
2880                         if (preamble.indentParagraphs()) {
2881                                 // we need to unindent, lest the line be too long
2882                                 context.add_par_extra_stuff("\\noindent\n");
2883                         }
2884                         context.check_layout(os);
2885                         begin_command_inset(os, "line", "rule");
2886                         os << "offset \"0.5ex\"\n"
2887                               "width \"100line%\"\n"
2888                               "height \"1pt\"\n";
2889                         end_inset(os);
2890                 }
2891
2892                 else if (t.cs() == "rule") {
2893                         string const offset = (p.hasOpt() ? p.getArg('[', ']') : string());
2894                         string const width = p.getArg('{', '}');
2895                         string const thickness = p.getArg('{', '}');
2896                         context.check_layout(os);
2897                         begin_command_inset(os, "line", "rule");
2898                         if (!offset.empty())
2899                                 os << "offset \"" << translate_len(offset) << "\"\n";
2900                         os << "width \"" << translate_len(width) << "\"\n"
2901                                   "height \"" << translate_len(thickness) << "\"\n";
2902                         end_inset(os);
2903                 }
2904
2905                 else if (is_known(t.cs(), known_phrases) ||
2906                          (t.cs() == "protect" &&
2907                           p.next_token().cat() == catEscape &&
2908                           is_known(p.next_token().cs(), known_phrases))) {
2909                         // LyX sometimes puts a \protect in front, so we have to ignore it
2910                         // FIXME: This needs to be changed when bug 4752 is fixed.
2911                         where = is_known(
2912                                 t.cs() == "protect" ? p.get_token().cs() : t.cs(),
2913                                 known_phrases);
2914                         context.check_layout(os);
2915                         os << known_coded_phrases[where - known_phrases];
2916                         skip_spaces_braces(p);
2917                 }
2918
2919                 else if ((where = is_known(t.cs(), known_ref_commands))) {
2920                         string const opt = p.getOpt();
2921                         if (opt.empty()) {
2922                                 context.check_layout(os);
2923                                 begin_command_inset(os, "ref",
2924                                         known_coded_ref_commands[where - known_ref_commands]);
2925                                 os << "reference \""
2926                                    << convert_command_inset_arg(p.verbatim_item())
2927                                    << "\"\n";
2928                                 end_inset(os);
2929                         } else {
2930                                 // LyX does not support optional arguments of ref commands
2931                                 handle_ert(os, t.asInput() + '[' + opt + "]{" +
2932                                                p.verbatim_item() + "}", context);
2933                         }
2934                 }
2935
2936                 else if (use_natbib &&
2937                          is_known(t.cs(), known_natbib_commands) &&
2938                          ((t.cs() != "citefullauthor" &&
2939                            t.cs() != "citeyear" &&
2940                            t.cs() != "citeyearpar") ||
2941                           p.next_token().asInput() != "*")) {
2942                         context.check_layout(os);
2943                         string command = t.cs();
2944                         if (p.next_token().asInput() == "*") {
2945                                 command += '*';
2946                                 p.get_token();
2947                         }
2948                         if (command == "citefullauthor")
2949                                 // alternative name for "\\citeauthor*"
2950                                 command = "citeauthor*";
2951
2952                         // text before the citation
2953                         string before;
2954                         // text after the citation
2955                         string after;
2956                         get_cite_arguments(p, true, before, after);
2957
2958                         if (command == "cite") {
2959                                 // \cite without optional argument means
2960                                 // \citet, \cite with at least one optional
2961                                 // argument means \citep.
2962                                 if (before.empty() && after.empty())
2963                                         command = "citet";
2964                                 else
2965                                         command = "citep";
2966                         }
2967                         if (before.empty() && after == "[]")
2968                                 // avoid \citet[]{a}
2969                                 after.erase();
2970                         else if (before == "[]" && after == "[]") {
2971                                 // avoid \citet[][]{a}
2972                                 before.erase();
2973                                 after.erase();
2974                         }
2975                         // remove the brackets around after and before
2976                         if (!after.empty()) {
2977                                 after.erase(0, 1);
2978                                 after.erase(after.length() - 1, 1);
2979                                 after = convert_command_inset_arg(after);
2980                         }
2981                         if (!before.empty()) {
2982                                 before.erase(0, 1);
2983                                 before.erase(before.length() - 1, 1);
2984                                 before = convert_command_inset_arg(before);
2985                         }
2986                         begin_command_inset(os, "citation", command);
2987                         os << "after " << '"' << after << '"' << "\n";
2988                         os << "before " << '"' << before << '"' << "\n";
2989                         os << "key \""
2990                            << convert_command_inset_arg(p.verbatim_item())
2991                            << "\"\n";
2992                         end_inset(os);
2993                 }
2994
2995                 else if (use_jurabib &&
2996                          is_known(t.cs(), known_jurabib_commands) &&
2997                          (t.cs() == "cite" || p.next_token().asInput() != "*")) {
2998                         context.check_layout(os);
2999                         string command = t.cs();
3000                         if (p.next_token().asInput() == "*") {
3001                                 command += '*';
3002                                 p.get_token();
3003                         }
3004                         char argumentOrder = '\0';
3005                         vector<string> const options =
3006                                 preamble.getPackageOptions("jurabib");
3007                         if (find(options.begin(), options.end(),
3008                                       "natbiborder") != options.end())
3009                                 argumentOrder = 'n';
3010                         else if (find(options.begin(), options.end(),
3011                                            "jurabiborder") != options.end())
3012                                 argumentOrder = 'j';
3013
3014                         // text before the citation
3015                         string before;
3016                         // text after the citation
3017                         string after;
3018                         get_cite_arguments(p, argumentOrder != 'j', before, after);
3019
3020                         string const citation = p.verbatim_item();
3021                         if (!before.empty() && argumentOrder == '\0') {
3022                                 cerr << "Warning: Assuming argument order "
3023                                         "of jurabib version 0.6 for\n'"
3024                                      << command << before << after << '{'
3025                                      << citation << "}'.\n"
3026                                         "Add 'jurabiborder' to the jurabib "
3027                                         "package options if you used an\n"
3028                                         "earlier jurabib version." << endl;
3029                         }
3030                         if (!after.empty()) {
3031                                 after.erase(0, 1);
3032                                 after.erase(after.length() - 1, 1);
3033                         }
3034                         if (!before.empty()) {
3035                                 before.erase(0, 1);
3036                                 before.erase(before.length() - 1, 1);
3037                         }
3038                         begin_command_inset(os, "citation", command);
3039                         os << "after " << '"' << after << '"' << "\n";
3040                         os << "before " << '"' << before << '"' << "\n";
3041                         os << "key " << '"' << citation << '"' << "\n";
3042                         end_inset(os);
3043                 }
3044
3045                 else if (t.cs() == "cite"
3046                         || t.cs() == "nocite") {
3047                         context.check_layout(os);
3048                         string after = convert_command_inset_arg(p.getArg('[', ']'));
3049                         string key = convert_command_inset_arg(p.verbatim_item());
3050                         // store the case that it is "\nocite{*}" to use it later for
3051                         // the BibTeX inset
3052                         if (key != "*") {
3053                                 begin_command_inset(os, "citation", t.cs());
3054                                 os << "after " << '"' << after << '"' << "\n";
3055                                 os << "key " << '"' << key << '"' << "\n";
3056                                 end_inset(os);
3057                         } else if (t.cs() == "nocite")
3058                                 btprint = key;
3059                 }
3060
3061                 else if (t.cs() == "index") {
3062                         context.check_layout(os);
3063                         begin_inset(os, "Index idx\n");
3064                         os << "status collapsed\n";
3065                         parse_text_in_inset(p, os, FLAG_ITEM, false, context, "Index");
3066                         end_inset(os);
3067                 }
3068
3069                 else if (t.cs() == "nomenclature") {
3070                         context.check_layout(os);
3071                         begin_command_inset(os, "nomenclature", "nomenclature");
3072                         string prefix = convert_command_inset_arg(p.getArg('[', ']'));
3073                         if (!prefix.empty())
3074                                 os << "prefix " << '"' << prefix << '"' << "\n";
3075                         os << "symbol " << '"'
3076                            << convert_command_inset_arg(p.verbatim_item());
3077                         os << "\"\ndescription \""
3078                            << convert_command_inset_arg(p.verbatim_item())
3079                            << "\"\n";
3080                         end_inset(os);
3081                 }
3082
3083                 else if (t.cs() == "label") {
3084                         context.check_layout(os);
3085                         begin_command_inset(os, "label", "label");
3086                         os << "name \""
3087                            << convert_command_inset_arg(p.verbatim_item())
3088                            << "\"\n";
3089                         end_inset(os);
3090                 }
3091
3092                 else if (t.cs() == "printindex") {
3093                         context.check_layout(os);
3094                         begin_command_inset(os, "index_print", "printindex");
3095                         os << "type \"idx\"\n";
3096                         end_inset(os);
3097                         skip_spaces_braces(p);
3098                 }
3099
3100                 else if (t.cs() == "printnomenclature") {
3101                         string width = "";
3102                         string width_type = "";
3103                         context.check_layout(os);
3104                         begin_command_inset(os, "nomencl_print", "printnomenclature");
3105                         // case of a custom width
3106                         if (p.hasOpt()) {
3107                                 width = p.getArg('[', ']');
3108                                 width = translate_len(width);
3109                                 width_type = "custom";
3110                         }
3111                         // case of no custom width
3112                         // the case of no custom width but the width set
3113                         // via \settowidth{\nomlabelwidth}{***} cannot be supported
3114                         // because the user could have set anything, not only the width
3115                         // of the longest label (which would be width_type = "auto")
3116                         string label = convert_command_inset_arg(p.getArg('{', '}'));
3117                         if (label.empty() && width_type.empty())
3118                                 width_type = "none";
3119                         os << "set_width \"" << width_type << "\"\n";
3120                         if (width_type == "custom")
3121                                 os << "width \"" << width << '\"';
3122                         end_inset(os);
3123                         skip_spaces_braces(p);
3124                 }
3125
3126                 else if ((t.cs() == "textsuperscript" || t.cs() == "textsubscript")) {
3127                         context.check_layout(os);
3128                         begin_inset(os, "script ");
3129                         os << t.cs().substr(4) << '\n';
3130                         parse_text_in_inset(p, os, FLAG_ITEM, false, context);
3131                         end_inset(os);
3132                         if (t.cs() == "textsubscript")
3133                                 preamble.registerAutomaticallyLoadedPackage("subscript");
3134                 }
3135
3136                 else if ((where = is_known(t.cs(), known_quotes))) {
3137                         context.check_layout(os);
3138                         begin_inset(os, "Quotes ");
3139                         os << known_coded_quotes[where - known_quotes];
3140                         end_inset(os);
3141                         // LyX adds {} after the quote, so we have to eat
3142                         // spaces here if there are any before a possible
3143                         // {} pair.
3144                         eat_whitespace(p, os, context, false);
3145                         skip_braces(p);
3146                 }
3147
3148                 else if ((where = is_known(t.cs(), known_sizes)) &&
3149                          context.new_layout_allowed) {
3150                         context.check_layout(os);
3151                         TeXFont const oldFont = context.font;
3152                         context.font.size = known_coded_sizes[where - known_sizes];
3153                         output_font_change(os, oldFont, context.font);
3154                         eat_whitespace(p, os, context, false);
3155                 }
3156
3157                 else if ((where = is_known(t.cs(), known_font_families)) &&
3158                          context.new_layout_allowed) {
3159                         context.check_layout(os);
3160                         TeXFont const oldFont = context.font;
3161                         context.font.family =
3162                                 known_coded_font_families[where - known_font_families];
3163                         output_font_change(os, oldFont, context.font);
3164                         eat_whitespace(p, os, context, false);
3165                 }
3166
3167                 else if ((where = is_known(t.cs(), known_font_series)) &&
3168                          context.new_layout_allowed) {
3169                         context.check_layout(os);
3170                         TeXFont const oldFont = context.font;
3171                         context.font.series =
3172                                 known_coded_font_series[where - known_font_series];
3173                         output_font_change(os, oldFont, context.font);
3174                         eat_whitespace(p, os, context, false);
3175                 }
3176
3177                 else if ((where = is_known(t.cs(), known_font_shapes)) &&
3178                          context.new_layout_allowed) {
3179                         context.check_layout(os);
3180                         TeXFont const oldFont = context.font;
3181                         context.font.shape =
3182                                 known_coded_font_shapes[where - known_font_shapes];
3183                         output_font_change(os, oldFont, context.font);
3184                         eat_whitespace(p, os, context, false);
3185                 }
3186                 else if ((where = is_known(t.cs(), known_old_font_families)) &&
3187                          context.new_layout_allowed) {
3188                         context.check_layout(os);
3189                         TeXFont const oldFont = context.font;
3190                         context.font.init();
3191                         context.font.size = oldFont.size;
3192                         context.font.family =
3193                                 known_coded_font_families[where - known_old_font_families];
3194                         output_font_change(os, oldFont, context.font);
3195                         eat_whitespace(p, os, context, false);
3196                 }
3197
3198                 else if ((where = is_known(t.cs(), known_old_font_series)) &&
3199                          context.new_layout_allowed) {
3200                         context.check_layout(os);
3201                         TeXFont const oldFont = context.font;
3202                         context.font.init();
3203                         context.font.size = oldFont.size;
3204                         context.font.series =
3205                                 known_coded_font_series[where - known_old_font_series];
3206                         output_font_change(os, oldFont, context.font);
3207                         eat_whitespace(p, os, context, false);
3208                 }
3209
3210                 else if ((where = is_known(t.cs(), known_old_font_shapes)) &&
3211                          context.new_layout_allowed) {
3212                         context.check_layout(os);
3213                         TeXFont const oldFont = context.font;
3214                         context.font.init();
3215                         context.font.size = oldFont.size;
3216                         context.font.shape =
3217                                 known_coded_font_shapes[where - known_old_font_shapes];
3218                         output_font_change(os, oldFont, context.font);
3219                         eat_whitespace(p, os, context, false);
3220                 }
3221
3222                 else if (t.cs() == "selectlanguage") {
3223                         context.check_layout(os);
3224                         // save the language for the case that a
3225                         // \foreignlanguage is used
3226
3227                         context.font.language = babel2lyx(p.verbatim_item());
3228                         os << "\n\\lang " << context.font.language << "\n";
3229                 }
3230
3231                 else if (t.cs() == "foreignlanguage") {
3232                         string const lang = babel2lyx(p.verbatim_item());
3233                         parse_text_attributes(p, os, FLAG_ITEM, outer,
3234                                               context, "\\lang",
3235                                               context.font.language, lang);
3236                 }
3237
3238                 else if (t.cs() == "inputencoding") {
3239                         // nothing to write here
3240                         string const enc = subst(p.verbatim_item(), "\n", " ");
3241                         p.setEncoding(enc);
3242                 }
3243
3244                 else if ((where = is_known(t.cs(), known_special_chars))) {
3245                         context.check_layout(os);
3246                         os << "\\SpecialChar \\"
3247                            << known_coded_special_chars[where - known_special_chars]
3248                            << '\n';
3249                         skip_spaces_braces(p);
3250                 }
3251
3252                 else if (t.cs() == "nobreakdash" && p.next_token().asInput() == "-") {
3253                         context.check_layout(os);
3254                         os << "\\SpecialChar \\nobreakdash-\n";
3255                         p.get_token();
3256                 }
3257
3258                 else if (t.cs() == "textquotedbl") {
3259                         context.check_layout(os);
3260                         os << "\"";
3261                         skip_braces(p);
3262                 }
3263
3264                 else if (t.cs() == "@" && p.next_token().asInput() == ".") {
3265                         context.check_layout(os);
3266                         os << "\\SpecialChar \\@.\n";
3267                         p.get_token();
3268                 }
3269
3270                 else if (t.cs() == "-") {
3271                         context.check_layout(os);
3272                         os << "\\SpecialChar \\-\n";
3273                 }
3274
3275                 else if (t.cs() == "textasciitilde") {
3276                         context.check_layout(os);
3277                         os << '~';
3278                         skip_spaces_braces(p);
3279                 }
3280
3281                 else if (t.cs() == "textasciicircum") {
3282                         context.check_layout(os);
3283                         os << '^';
3284                         skip_spaces_braces(p);
3285                 }
3286
3287                 else if (t.cs() == "textbackslash") {
3288                         context.check_layout(os);
3289                         os << "\n\\backslash\n";
3290                         skip_spaces_braces(p);
3291                 }
3292
3293                 else if (t.cs() == "_" || t.cs() == "&" || t.cs() == "#"
3294                             || t.cs() == "$" || t.cs() == "{" || t.cs() == "}"
3295                             || t.cs() == "%") {
3296                         context.check_layout(os);
3297                         os << t.cs();
3298                 }
3299
3300                 else if (t.cs() == "char") {
3301                         context.check_layout(os);
3302                         if (p.next_token().character() == '`') {
3303                                 p.get_token();
3304                                 if (p.next_token().cs() == "\"") {
3305                                         p.get_token();
3306                                         os << '"';
3307                                         skip_braces(p);
3308                                 } else {
3309                                         handle_ert(os, "\\char`", context);
3310                                 }
3311                         } else {
3312                                 handle_ert(os, "\\char", context);
3313                         }
3314                 }
3315
3316                 else if (t.cs() == "verb") {
3317                         context.check_layout(os);
3318                         char const delimiter = p.next_token().character();
3319                         string const arg = p.getArg(delimiter, delimiter);
3320                         ostringstream oss;
3321                         oss << "\\verb" << delimiter << arg << delimiter;
3322                         handle_ert(os, oss.str(), context);
3323                 }
3324
3325                 // Problem: \= creates a tabstop inside the tabbing environment
3326                 // and else an accent. In the latter case we really would want
3327                 // \={o} instead of \= o.
3328                 else if (t.cs() == "=" && (flags & FLAG_TABBING))
3329                         handle_ert(os, t.asInput(), context);
3330
3331                 // accents (see Table 6 in Comprehensive LaTeX Symbol List)
3332                 else if (t.cs().size() == 1
3333                          && contains("\"'.=^`bcdHkrtuv~", t.cs())) {
3334                         context.check_layout(os);
3335                         // try to see whether the string is in unicodesymbols
3336                         docstring rem;
3337                         string command = t.asInput() + "{"
3338                                 + trimSpaceAndEol(p.verbatim_item())
3339                                 + "}";
3340                         docstring s = encodings.fromLaTeXCommand(from_utf8(command), rem);
3341                         if (!s.empty()) {
3342                                 if (!rem.empty())
3343                                         cerr << "When parsing " << command
3344                                              << ", result is " << to_utf8(s)
3345                                              << "+" << to_utf8(rem) << endl;
3346                                 os << to_utf8(s);
3347                         } else
3348                                 // we did not find a non-ert version
3349                                 handle_ert(os, command, context);
3350                 }
3351
3352                 else if (t.cs() == "\\") {
3353                         context.check_layout(os);
3354                         if (p.hasOpt())
3355                                 handle_ert(os, "\\\\" + p.getOpt(), context);
3356                         else if (p.next_token().asInput() == "*") {
3357                                 p.get_token();
3358                                 // getOpt() eats the following space if there
3359                                 // is no optional argument, but that is OK
3360                                 // here since it has no effect in the output.
3361                                 handle_ert(os, "\\\\*" + p.getOpt(), context);
3362                         }
3363                         else {
3364                                 begin_inset(os, "Newline newline");
3365                                 end_inset(os);
3366                         }
3367                 }
3368
3369                 else if (t.cs() == "newline" ||
3370                          (t.cs() == "linebreak" && !p.hasOpt())) {
3371                         context.check_layout(os);
3372                         begin_inset(os, "Newline ");
3373                         os << t.cs();
3374                         end_inset(os);
3375                         skip_spaces_braces(p);
3376                 }
3377
3378                 else if (t.cs() == "input" || t.cs() == "include"
3379                          || t.cs() == "verbatiminput") {
3380                         string name = t.cs();
3381                         if (t.cs() == "verbatiminput"
3382                             && p.next_token().asInput() == "*")
3383                                 name += p.get_token().asInput();
3384                         context.check_layout(os);
3385                         string filename(normalize_filename(p.getArg('{', '}')));
3386                         string const path = getMasterFilePath();
3387                         // We want to preserve relative / absolute filenames,
3388                         // therefore path is only used for testing
3389                         if ((t.cs() == "include" || t.cs() == "input") &&
3390                             !makeAbsPath(filename, path).exists()) {
3391                                 // The file extension is probably missing.
3392                                 // Now try to find it out.
3393                                 string const tex_name =
3394                                         find_file(filename, path,
3395                                                   known_tex_extensions);
3396                                 if (!tex_name.empty())
3397                                         filename = tex_name;
3398                         }
3399                         bool external = false;
3400                         string outname;
3401                         if (makeAbsPath(filename, path).exists()) {
3402                                 string const abstexname =
3403                                         makeAbsPath(filename, path).absFileName();
3404                                 string const abslyxname =
3405                                         changeExtension(abstexname, ".lyx");
3406                                 string const absfigname =
3407                                         changeExtension(abstexname, ".fig");
3408                                 fix_relative_filename(filename);
3409                                 string const lyxname =
3410                                         changeExtension(filename, ".lyx");
3411                                 bool xfig = false;
3412                                 external = FileName(absfigname).exists();
3413                                 if (t.cs() == "input") {
3414                                         string const ext = getExtension(abstexname);
3415
3416                                         // Combined PS/LaTeX:
3417                                         // x.eps, x.pstex_t (old xfig)
3418                                         // x.pstex, x.pstex_t (new xfig, e.g. 3.2.5)
3419                                         FileName const absepsname(
3420                                                 changeExtension(abstexname, ".eps"));
3421                                         FileName const abspstexname(
3422                                                 changeExtension(abstexname, ".pstex"));
3423                                         bool const xfigeps =
3424                                                 (absepsname.exists() ||
3425                                                  abspstexname.exists()) &&
3426                                                 ext == "pstex_t";
3427
3428                                         // Combined PDF/LaTeX:
3429                                         // x.pdf, x.pdftex_t (old xfig)
3430                                         // x.pdf, x.pdf_t (new xfig, e.g. 3.2.5)
3431                                         FileName const abspdfname(
3432                                                 changeExtension(abstexname, ".pdf"));
3433                                         bool const xfigpdf =
3434                                                 abspdfname.exists() &&
3435                                                 (ext == "pdftex_t" || ext == "pdf_t");
3436                                         if (xfigpdf)
3437                                                 pdflatex = true;
3438
3439                                         // Combined PS/PDF/LaTeX:
3440                                         // x_pspdftex.eps, x_pspdftex.pdf, x.pspdftex
3441                                         string const absbase2(
3442                                                 removeExtension(abstexname) + "_pspdftex");
3443                                         FileName const abseps2name(
3444                                                 addExtension(absbase2, ".eps"));
3445                                         FileName const abspdf2name(
3446                                                 addExtension(absbase2, ".pdf"));
3447                                         bool const xfigboth =
3448                                                 abspdf2name.exists() &&
3449                                                 abseps2name.exists() && ext == "pspdftex";
3450
3451                                         xfig = xfigpdf || xfigeps || xfigboth;
3452                                         external = external && xfig;
3453                                 }
3454                                 if (external) {
3455                                         outname = changeExtension(filename, ".fig");
3456                                 } else if (xfig) {
3457                                         // Don't try to convert, the result
3458                                         // would be full of ERT.
3459                                         outname = filename;
3460                                 } else if (t.cs() != "verbatiminput" &&
3461                                     tex2lyx(abstexname, FileName(abslyxname),
3462                                             p.getEncoding())) {
3463                                         outname = lyxname;
3464                                 } else {
3465                                         outname = filename;
3466                                 }
3467                         } else {
3468                                 cerr << "Warning: Could not find included file '"
3469                                      << filename << "'." << endl;
3470                                 outname = filename;
3471                         }
3472                         if (external) {
3473                                 begin_inset(os, "External\n");
3474                                 os << "\ttemplate XFig\n"
3475                                    << "\tfilename " << outname << '\n';
3476                         } else {
3477                                 begin_command_inset(os, "include", name);
3478                                 os << "preview false\n"
3479                                       "filename \"" << outname << "\"\n";
3480                         }
3481                         end_inset(os);
3482                 }
3483
3484                 else if (t.cs() == "bibliographystyle") {
3485                         // store new bibliographystyle
3486                         bibliographystyle = p.verbatim_item();
3487                         // If any other command than \bibliography and
3488                         // \nocite{*} follows, we need to output the style
3489                         // (because it might be used by that command).
3490                         // Otherwise, it will automatically be output by LyX.
3491                         p.pushPosition();
3492                         bool output = true;
3493                         for (Token t2 = p.get_token(); p.good(); t2 = p.get_token()) {
3494                                 if (t2.cat() == catBegin)
3495                                         break;
3496                                 if (t2.cat() != catEscape)
3497                                         continue;
3498                                 if (t2.cs() == "nocite") {
3499                                         if (p.getArg('{', '}') == "*")
3500                                                 continue;
3501                                 } else if (t2.cs() == "bibliography")
3502                                         output = false;
3503                                 break;
3504                         }
3505                         p.popPosition();
3506                         if (output) {
3507                                 handle_ert(os,
3508                                         "\\bibliographystyle{" + bibliographystyle + '}',
3509                                         context);
3510                         }
3511                 }
3512
3513                 else if (t.cs() == "bibliography") {
3514                         context.check_layout(os);
3515                         begin_command_inset(os, "bibtex", "bibtex");
3516                         if (!btprint.empty()) {
3517                                 os << "btprint " << '"' << "btPrintAll" << '"' << "\n";
3518                                 // clear the string because the next BibTeX inset can be without the
3519                                 // \nocite{*} option
3520                                 btprint.clear();
3521                         }
3522                         os << "bibfiles " << '"' << p.verbatim_item() << '"' << "\n";
3523                         // Do we have a bibliographystyle set?
3524                         if (!bibliographystyle.empty())
3525                                 os << "options " << '"' << bibliographystyle << '"' << "\n";
3526                         end_inset(os);
3527                 }
3528
3529                 else if (t.cs() == "parbox") {
3530                         // Test whether this is an outer box of a shaded box
3531                         p.pushPosition();
3532                         // swallow arguments
3533                         while (p.hasOpt()) {
3534                                 p.getArg('[', ']');
3535                                 p.skip_spaces(true);
3536                         }
3537                         p.getArg('{', '}');
3538                         p.skip_spaces(true);
3539                         // eat the '{'
3540                         if (p.next_token().cat() == catBegin)
3541                                 p.get_token();
3542                         p.skip_spaces(true);
3543                         Token to = p.get_token();
3544                         bool shaded = false;
3545                         if (to.asInput() == "\\begin") {
3546                                 p.skip_spaces(true);
3547                                 if (p.getArg('{', '}') == "shaded")
3548                                         shaded = true;
3549                         }
3550                         p.popPosition();
3551                         if (shaded) {
3552                                 parse_outer_box(p, os, FLAG_ITEM, outer,
3553                                                 context, "parbox", "shaded");
3554                         } else
3555                                 parse_box(p, os, 0, FLAG_ITEM, outer, context,
3556                                           "", "", t.cs());
3557                 }
3558
3559                 else if (t.cs() == "ovalbox" || t.cs() == "Ovalbox" ||
3560                          t.cs() == "shadowbox" || t.cs() == "doublebox")
3561                         parse_outer_box(p, os, FLAG_ITEM, outer, context, t.cs(), "");
3562
3563                 else if (t.cs() == "framebox") {
3564                         string special = p.getFullOpt();
3565                         special += p.getOpt();
3566                         parse_outer_box(p, os, FLAG_ITEM, outer, context, t.cs(), special);
3567                 }
3568
3569                 //\makebox() is part of the picture environment and different from \makebox{}
3570                 //\makebox{} will be parsed by parse_box
3571                 else if (t.cs() == "makebox") {
3572                         string arg = t.asInput();
3573                         if (p.next_token().character() == '(') {
3574                                 //the syntax is: \makebox(x,y)[position]{content}
3575                                 arg += p.getFullParentheseArg();
3576                                 arg += p.getFullOpt();
3577                                 eat_whitespace(p, os, context, false);
3578                                 handle_ert(os, arg + '{', context);
3579                                 eat_whitespace(p, os, context, false);
3580                                 parse_text(p, os, FLAG_ITEM, outer, context);
3581                                 handle_ert(os, "}", context);
3582                         } else
3583                                 //the syntax is: \makebox[width][position]{content}
3584                                 parse_box(p, os, 0, FLAG_ITEM, outer, context,
3585                                           "", "", t.cs());
3586                 }
3587
3588                 else if (t.cs() == "smallskip" ||
3589                          t.cs() == "medskip" ||
3590                          t.cs() == "bigskip" ||
3591                          t.cs() == "vfill") {
3592                         context.check_layout(os);
3593                         begin_inset(os, "VSpace ");
3594                         os << t.cs();
3595                         end_inset(os);
3596                         skip_spaces_braces(p);
3597                 }
3598
3599                 else if ((where = is_known(t.cs(), known_spaces))) {
3600                         context.check_layout(os);
3601                         begin_inset(os, "space ");
3602                         os << '\\' << known_coded_spaces[where - known_spaces]
3603                            << '\n';
3604                         end_inset(os);
3605                         // LaTeX swallows whitespace after all spaces except
3606                         // "\\,". We have to do that here, too, because LyX
3607                         // adds "{}" which would make the spaces significant.
3608                         if (t.cs() !=  ",")
3609                                 eat_whitespace(p, os, context, false);
3610                         // LyX adds "{}" after all spaces except "\\ " and
3611                         // "\\,", so we have to remove "{}".
3612                         // "\\,{}" is equivalent to "\\," in LaTeX, so we
3613                         // remove the braces after "\\,", too.
3614                         if (t.cs() != " ")
3615                                 skip_braces(p);
3616                 }
3617
3618                 else if (t.cs() == "newpage" ||
3619                          (t.cs() == "pagebreak" && !p.hasOpt()) ||
3620                          t.cs() == "clearpage" ||
3621                          t.cs() == "cleardoublepage") {
3622                         context.check_layout(os);
3623                         begin_inset(os, "Newpage ");
3624                         os << t.cs();
3625                         end_inset(os);
3626                         skip_spaces_braces(p);
3627                 }
3628
3629                 else if (t.cs() == "DeclareRobustCommand" ||
3630                          t.cs() == "DeclareRobustCommandx" ||
3631                          t.cs() == "newcommand" ||
3632                          t.cs() == "newcommandx" ||
3633                          t.cs() == "providecommand" ||
3634                          t.cs() == "providecommandx" ||
3635                          t.cs() == "renewcommand" ||
3636                          t.cs() == "renewcommandx") {
3637                         // DeclareRobustCommand, DeclareRobustCommandx,
3638                         // providecommand and providecommandx could be handled
3639                         // by parse_command(), but we need to call
3640                         // add_known_command() here.
3641                         string name = t.asInput();
3642                         if (p.next_token().asInput() == "*") {
3643                                 // Starred form. Eat '*'
3644                                 p.get_token();
3645                                 name += '*';
3646                         }
3647                         string const command = p.verbatim_item();
3648                         string const opt1 = p.getFullOpt();
3649                         string const opt2 = p.getFullOpt();
3650                         add_known_command(command, opt1, !opt2.empty());
3651                         string const ert = name + '{' + command + '}' +
3652                                            opt1 + opt2 +
3653                                            '{' + p.verbatim_item() + '}';
3654
3655                         if (t.cs() == "DeclareRobustCommand" ||
3656                             t.cs() == "DeclareRobustCommandx" ||
3657                             t.cs() == "providecommand" ||
3658                             t.cs() == "providecommandx" ||
3659                             name[name.length()-1] == '*')
3660                                 handle_ert(os, ert, context);
3661                         else {
3662                                 context.check_layout(os);
3663                                 begin_inset(os, "FormulaMacro");
3664                                 os << "\n" << ert;
3665                                 end_inset(os);
3666                         }
3667                 }
3668
3669                 else if (t.cs() == "let" && p.next_token().asInput() != "*") {
3670                         // let could be handled by parse_command(),
3671                         // but we need to call add_known_command() here.
3672                         string ert = t.asInput();
3673                         string name;
3674                         p.skip_spaces();
3675                         if (p.next_token().cat() == catBegin) {
3676                                 name = p.verbatim_item();
3677                                 ert += '{' + name + '}';
3678                         } else {
3679                                 name = p.verbatim_item();
3680                                 ert += name;
3681                         }
3682                         string command;
3683                         p.skip_spaces();
3684                         if (p.next_token().cat() == catBegin) {
3685                                 command = p.verbatim_item();
3686                                 ert += '{' + command + '}';
3687                         } else {
3688                                 command = p.verbatim_item();
3689                                 ert += command;
3690                         }
3691                         // If command is known, make name known too, to parse
3692                         // its arguments correctly. For this reason we also
3693                         // have commands in syntax.default that are hardcoded.
3694                         CommandMap::iterator it = known_commands.find(command);
3695                         if (it != known_commands.end())
3696                                 known_commands[t.asInput()] = it->second;
3697                         handle_ert(os, ert, context);
3698                 }
3699
3700                 else if (t.cs() == "hspace" || t.cs() == "vspace") {
3701                         bool starred = false;
3702                         if (p.next_token().asInput() == "*") {
3703                                 p.get_token();
3704                                 starred = true;
3705                         }
3706                         string name = t.asInput();
3707                         string const length = p.verbatim_item();
3708                         string unit;
3709                         string valstring;
3710                         bool valid = splitLatexLength(length, valstring, unit);
3711                         bool known_hspace = false;
3712                         bool known_vspace = false;
3713                         bool known_unit = false;
3714                         double value;
3715                         if (valid) {
3716                                 istringstream iss(valstring);
3717                                 iss >> value;
3718                                 if (value == 1.0) {
3719                                         if (t.cs()[0] == 'h') {
3720                                                 if (unit == "\\fill") {
3721                                                         if (!starred) {
3722                                                                 unit = "";
3723                                                                 name = "\\hfill";
3724                                                         }
3725                                                         known_hspace = true;
3726                                                 }
3727                                         } else {
3728                                                 if (unit == "\\smallskipamount") {
3729                                                         unit = "smallskip";
3730                                                         known_vspace = true;
3731                                                 } else if (unit == "\\medskipamount") {
3732                                                         unit = "medskip";
3733                                                         known_vspace = true;
3734                                                 } else if (unit == "\\bigskipamount") {
3735                                                         unit = "bigskip";
3736                                                         known_vspace = true;
3737                                                 } else if (unit == "\\fill") {
3738                                                         unit = "vfill";
3739                                                         known_vspace = true;
3740                                                 }
3741                                         }
3742                                 }
3743                                 if (!known_hspace && !known_vspace) {
3744                                         switch (unitFromString(unit)) {
3745                                         case Length::SP:
3746                                         case Length::PT:
3747                                         case Length::BP:
3748                                         case Length::DD:
3749                                         case Length::MM:
3750                                         case Length::PC:
3751                                         case Length::CC:
3752                                         case Length::CM:
3753                                         case Length::IN:
3754                                         case Length::EX:
3755                                         case Length::EM:
3756                                         case Length::MU:
3757                                                 known_unit = true;
3758                                                 break;
3759                                         default:
3760                                                 break;
3761                                         }
3762                                 }
3763                         }
3764
3765                         if (t.cs()[0] == 'h' && (known_unit || known_hspace)) {
3766                                 // Literal horizontal length or known variable
3767                                 context.check_layout(os);
3768                                 begin_inset(os, "space ");
3769                                 os << name;
3770                                 if (starred)
3771                                         os << '*';
3772                                 os << '{';
3773                                 if (known_hspace)
3774                                         os << unit;
3775                                 os << "}";
3776                                 if (known_unit && !known_hspace)
3777                                         os << "\n\\length "
3778                                            << translate_len(length);
3779                                 end_inset(os);
3780                         } else if (known_unit || known_vspace) {
3781                                 // Literal vertical length or known variable
3782                                 context.check_layout(os);
3783                                 begin_inset(os, "VSpace ");
3784                                 if (known_unit)
3785                                         os << value;
3786                                 os << unit;
3787                                 if (starred)
3788                                         os << '*';
3789                                 end_inset(os);
3790                         } else {
3791                                 // LyX can't handle other length variables in Inset VSpace/space
3792                                 if (starred)
3793                                         name += '*';
3794                                 if (valid) {
3795                                         if (value == 1.0)
3796                                                 handle_ert(os, name + '{' + unit + '}', context);
3797                                         else if (value == -1.0)
3798                                                 handle_ert(os, name + "{-" + unit + '}', context);
3799                                         else
3800                                                 handle_ert(os, name + '{' + valstring + unit + '}', context);
3801                                 } else
3802                                         handle_ert(os, name + '{' + length + '}', context);
3803                         }
3804                 }
3805
3806                 // The single '=' is meant here.
3807                 else if ((newinsetlayout = findInsetLayout(context.textclass, t.cs(), true))) {
3808                         p.skip_spaces();
3809                         context.check_layout(os);
3810                         begin_inset(os, "Flex ");
3811                         os << to_utf8(newinsetlayout->name()) << '\n'
3812                            << "status collapsed\n";
3813                         parse_text_in_inset(p, os, FLAG_ITEM, false, context, newinsetlayout);
3814                         end_inset(os);
3815                 }
3816
3817                 else {
3818                         // try to see whether the string is in unicodesymbols
3819                         // Only use text mode commands, since we are in text mode here,
3820                         // and math commands may be invalid (bug 6797)
3821                         docstring rem;
3822                         docstring s = encodings.fromLaTeXCommand(from_utf8(t.asInput()),
3823                                                                  rem, Encodings::TEXT_CMD);
3824                         if (!s.empty()) {
3825                                 if (!rem.empty())
3826                                         cerr << "When parsing " << t.cs()
3827                                              << ", result is " << to_utf8(s)
3828                                              << "+" << to_utf8(rem) << endl;
3829                                 context.check_layout(os);
3830                                 os << to_utf8(s);
3831                                 skip_spaces_braces(p);
3832                         }
3833                         //cerr << "#: " << t << " mode: " << mode << endl;
3834                         // heuristic: read up to next non-nested space
3835                         /*
3836                         string s = t.asInput();
3837                         string z = p.verbatim_item();
3838                         while (p.good() && z != " " && z.size()) {
3839                                 //cerr << "read: " << z << endl;
3840                                 s += z;
3841                                 z = p.verbatim_item();
3842                         }
3843                         cerr << "found ERT: " << s << endl;
3844                         handle_ert(os, s + ' ', context);
3845                         */
3846                         else {
3847                                 string name = t.asInput();
3848                                 if (p.next_token().asInput() == "*") {
3849                                         // Starred commands like \vspace*{}
3850                                         p.get_token();  // Eat '*'
3851                                         name += '*';
3852                                 }
3853                                 if (!parse_command(name, p, os, outer, context))
3854                                         handle_ert(os, name, context);
3855                         }
3856                 }
3857
3858                 if (flags & FLAG_LEAVE) {
3859                         flags &= ~FLAG_LEAVE;
3860                         break;
3861                 }
3862         }
3863 }
3864
3865 // }])
3866
3867
3868 } // namespace lyx