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                 if (contains(opt, "H"))
1227                         preamble.registerAutomaticallyLoadedPackage("float");
1228                 else {
1229                         Floating const & fl = parent_context.textclass.floats()
1230                                 .getType(unstarred_name);
1231                         if (!fl.floattype().empty() && fl.usesFloatPkg())
1232                                 preamble.registerAutomaticallyLoadedPackage("float");
1233                 }
1234
1235                 os << "wide " << convert<string>(is_starred)
1236                    << "\nsideways false"
1237                    << "\nstatus open\n\n";
1238                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
1239                 end_inset(os);
1240                 // We don't need really a new paragraph, but
1241                 // we must make sure that the next item gets a \begin_layout.
1242                 parent_context.new_paragraph(os);
1243                 p.skip_spaces();
1244                 // the float is parsed thus delete the type
1245                 float_type = "";
1246         }
1247
1248         else if (unstarred_name == "sidewaysfigure"
1249                 || unstarred_name == "sidewaystable") {
1250                 eat_whitespace(p, os, parent_context, false);
1251                 parent_context.check_layout(os);
1252                 if (unstarred_name == "sidewaysfigure")
1253                         begin_inset(os, "Float figure\n");
1254                 else
1255                         begin_inset(os, "Float table\n");
1256                 os << "wide " << convert<string>(is_starred)
1257                    << "\nsideways true"
1258                    << "\nstatus open\n\n";
1259                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
1260                 end_inset(os);
1261                 // We don't need really a new paragraph, but
1262                 // we must make sure that the next item gets a \begin_layout.
1263                 parent_context.new_paragraph(os);
1264                 p.skip_spaces();
1265         }
1266
1267         else if (name == "wrapfigure" || name == "wraptable") {
1268                 // syntax is \begin{wrapfigure}[lines]{placement}[overhang]{width}
1269                 eat_whitespace(p, os, parent_context, false);
1270                 parent_context.check_layout(os);
1271                 // default values
1272                 string lines = "0";
1273                 string overhang = "0col%";
1274                 // parse
1275                 if (p.hasOpt())
1276                         lines = p.getArg('[', ']');
1277                 string const placement = p.getArg('{', '}');
1278                 if (p.hasOpt())
1279                         overhang = p.getArg('[', ']');
1280                 string const width = p.getArg('{', '}');
1281                 // write
1282                 if (name == "wrapfigure")
1283                         begin_inset(os, "Wrap figure\n");
1284                 else
1285                         begin_inset(os, "Wrap table\n");
1286                 os << "lines " << lines
1287                    << "\nplacement " << placement
1288                    << "\noverhang " << lyx::translate_len(overhang)
1289                    << "\nwidth " << lyx::translate_len(width)
1290                    << "\nstatus open\n\n";
1291                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
1292                 end_inset(os);
1293                 // We don't need really a new paragraph, but
1294                 // we must make sure that the next item gets a \begin_layout.
1295                 parent_context.new_paragraph(os);
1296                 p.skip_spaces();
1297         }
1298
1299         else if (name == "minipage") {
1300                 eat_whitespace(p, os, parent_context, false);
1301                 // Test whether this is an outer box of a shaded box
1302                 p.pushPosition();
1303                 // swallow arguments
1304                 while (p.hasOpt()) {
1305                         p.getArg('[', ']');
1306                         p.skip_spaces(true);
1307                 }
1308                 p.getArg('{', '}');
1309                 p.skip_spaces(true);
1310                 Token t = p.get_token();
1311                 bool shaded = false;
1312                 if (t.asInput() == "\\begin") {
1313                         p.skip_spaces(true);
1314                         if (p.getArg('{', '}') == "shaded")
1315                                 shaded = true;
1316                 }
1317                 p.popPosition();
1318                 if (shaded)
1319                         parse_outer_box(p, os, FLAG_END, outer,
1320                                         parent_context, name, "shaded");
1321                 else
1322                         parse_box(p, os, 0, FLAG_END, outer, parent_context,
1323                                   "", "", name);
1324                 p.skip_spaces();
1325         }
1326
1327         else if (name == "comment") {
1328                 eat_whitespace(p, os, parent_context, false);
1329                 parent_context.check_layout(os);
1330                 begin_inset(os, "Note Comment\n");
1331                 os << "status open\n";
1332                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
1333                 end_inset(os);
1334                 p.skip_spaces();
1335                 skip_braces(p); // eat {} that might by set by LyX behind comments
1336         }
1337
1338         else if (name == "lyxgreyedout") {
1339                 eat_whitespace(p, os, parent_context, false);
1340                 parent_context.check_layout(os);
1341                 begin_inset(os, "Note Greyedout\n");
1342                 os << "status open\n";
1343                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
1344                 end_inset(os);
1345                 p.skip_spaces();
1346                 if (!preamble.notefontcolor().empty())
1347                         preamble.registerAutomaticallyLoadedPackage("color");
1348         }
1349
1350         else if (name == "framed" || name == "shaded") {
1351                 eat_whitespace(p, os, parent_context, false);
1352                 parse_outer_box(p, os, FLAG_END, outer, parent_context, name, "");
1353                 p.skip_spaces();
1354         }
1355
1356         else if (name == "lstlisting") {
1357                 eat_whitespace(p, os, parent_context, false);
1358                 // FIXME handle listings with parameters
1359                 //       If this is added, don't forgot to handle the
1360                 //       automatic color package loading
1361                 if (p.hasOpt())
1362                         parse_unknown_environment(p, name, os, FLAG_END,
1363                                                   outer, parent_context);
1364                 else
1365                         parse_listings(p, os, parent_context);
1366                 p.skip_spaces();
1367         }
1368
1369         else if (!parent_context.new_layout_allowed)
1370                 parse_unknown_environment(p, name, os, FLAG_END, outer,
1371                                           parent_context);
1372
1373         // Alignment and spacing settings
1374         // FIXME (bug xxxx): These settings can span multiple paragraphs and
1375         //                                       therefore are totally broken!
1376         // Note that \centering, raggedright, and raggedleft cannot be handled, as
1377         // they are commands not environments. They are furthermore switches that
1378         // can be ended by another switches, but also by commands like \footnote or
1379         // \parbox. So the only safe way is to leave them untouched.
1380         else if (name == "center" || name == "centering" ||
1381                  name == "flushleft" || name == "flushright" ||
1382                  name == "singlespace" || name == "onehalfspace" ||
1383                  name == "doublespace" || name == "spacing") {
1384                 eat_whitespace(p, os, parent_context, false);
1385                 // We must begin a new paragraph if not already done
1386                 if (! parent_context.atParagraphStart()) {
1387                         parent_context.check_end_layout(os);
1388                         parent_context.new_paragraph(os);
1389                 }
1390                 if (name == "flushleft")
1391                         parent_context.add_extra_stuff("\\align left\n");
1392                 else if (name == "flushright")
1393                         parent_context.add_extra_stuff("\\align right\n");
1394                 else if (name == "center" || name == "centering")
1395                         parent_context.add_extra_stuff("\\align center\n");
1396                 else if (name == "singlespace")
1397                         parent_context.add_extra_stuff("\\paragraph_spacing single\n");
1398                 else if (name == "onehalfspace") {
1399                         parent_context.add_extra_stuff("\\paragraph_spacing onehalf\n");
1400                         preamble.registerAutomaticallyLoadedPackage("setspace");
1401                 } else if (name == "doublespace") {
1402                         parent_context.add_extra_stuff("\\paragraph_spacing double\n");
1403                         preamble.registerAutomaticallyLoadedPackage("setspace");
1404                 } else if (name == "spacing") {
1405                         parent_context.add_extra_stuff("\\paragraph_spacing other " + p.verbatim_item() + "\n");
1406                         preamble.registerAutomaticallyLoadedPackage("setspace");
1407                 }
1408                 parse_text(p, os, FLAG_END, outer, parent_context);
1409                 // Just in case the environment is empty
1410                 parent_context.extra_stuff.erase();
1411                 // We must begin a new paragraph to reset the alignment
1412                 parent_context.new_paragraph(os);
1413                 p.skip_spaces();
1414         }
1415
1416         // The single '=' is meant here.
1417         else if ((newlayout = findLayout(parent_context.textclass, name, false))) {
1418                 eat_whitespace(p, os, parent_context, false);
1419                 Context context(true, parent_context.textclass, newlayout,
1420                                 parent_context.layout, parent_context.font);
1421                 if (parent_context.deeper_paragraph) {
1422                         // We are beginning a nested environment after a
1423                         // deeper paragraph inside the outer list environment.
1424                         // Therefore we don't need to output a "begin deeper".
1425                         context.need_end_deeper = true;
1426                 }
1427                 parent_context.check_end_layout(os);
1428                 if (last_env == name) {
1429                         // we need to output a separator since LyX would export
1430                         // the two environments as one otherwise (bug 5716)
1431                         docstring const sep = from_ascii("--Separator--");
1432                         TeX2LyXDocClass const & textclass(parent_context.textclass);
1433                         if (textclass.hasLayout(sep)) {
1434                                 Context newcontext(parent_context);
1435                                 newcontext.layout = &(textclass[sep]);
1436                                 newcontext.check_layout(os);
1437                                 newcontext.check_end_layout(os);
1438                         } else {
1439                                 parent_context.check_layout(os);
1440                                 begin_inset(os, "Note Note\n");
1441                                 os << "status closed\n";
1442                                 Context newcontext(true, textclass,
1443                                                 &(textclass.defaultLayout()));
1444                                 newcontext.check_layout(os);
1445                                 newcontext.check_end_layout(os);
1446                                 end_inset(os);
1447                                 parent_context.check_end_layout(os);
1448                         }
1449                 }
1450                 switch (context.layout->latextype) {
1451                 case  LATEX_LIST_ENVIRONMENT:
1452                         context.add_par_extra_stuff("\\labelwidthstring "
1453                                                     + p.verbatim_item() + '\n');
1454                         p.skip_spaces();
1455                         break;
1456                 case  LATEX_BIB_ENVIRONMENT:
1457                         p.verbatim_item(); // swallow next arg
1458                         p.skip_spaces();
1459                         break;
1460                 default:
1461                         break;
1462                 }
1463                 context.check_deeper(os);
1464                 // handle known optional and required arguments
1465                 // layouts require all optional arguments before the required ones
1466                 // Unfortunately LyX can't handle arguments of list arguments (bug 7468):
1467                 // It is impossible to place anything after the environment name,
1468                 // but before the first \\item.
1469                 if (context.layout->latextype == LATEX_ENVIRONMENT) {
1470                         bool need_layout = true;
1471                         unsigned int optargs = 0;
1472                         while (optargs < context.layout->optargs) {
1473                                 eat_whitespace(p, os, context, false);
1474                                 if (p.next_token().cat() == catEscape ||
1475                                     p.next_token().character() != '[')
1476                                         break;
1477                                 p.get_token(); // eat '['
1478                                 if (need_layout) {
1479                                         context.check_layout(os);
1480                                         need_layout = false;
1481                                 }
1482                                 begin_inset(os, "Argument\n");
1483                                 os << "status collapsed\n\n";
1484                                 parse_text_in_inset(p, os, FLAG_BRACK_LAST, outer, context);
1485                                 end_inset(os);
1486                                 eat_whitespace(p, os, context, false);
1487                                 ++optargs;
1488                         }
1489                         unsigned int reqargs = 0;
1490                         while (reqargs < context.layout->reqargs) {
1491                                 eat_whitespace(p, os, context, false);
1492                                 if (p.next_token().cat() != catBegin)
1493                                         break;
1494                                 p.get_token(); // eat '{'
1495                                 if (need_layout) {
1496                                         context.check_layout(os);
1497                                         need_layout = false;
1498                                 }
1499                                 begin_inset(os, "Argument\n");
1500                                 os << "status collapsed\n\n";
1501                                 parse_text_in_inset(p, os, FLAG_BRACE_LAST, outer, context);
1502                                 end_inset(os);
1503                                 eat_whitespace(p, os, context, false);
1504                                 ++reqargs;
1505                         }
1506                 }
1507                 parse_text(p, os, FLAG_END, outer, context);
1508                 context.check_end_layout(os);
1509                 if (parent_context.deeper_paragraph) {
1510                         // We must suppress the "end deeper" because we
1511                         // suppressed the "begin deeper" above.
1512                         context.need_end_deeper = false;
1513                 }
1514                 context.check_end_deeper(os);
1515                 parent_context.new_paragraph(os);
1516                 p.skip_spaces();
1517                 if (!title_layout_found)
1518                         title_layout_found = newlayout->intitle;
1519                 set<string> const & req = newlayout->requires();
1520                 for (set<string>::const_iterator it = req.begin(); it != req.end(); it++)
1521                         preamble.registerAutomaticallyLoadedPackage(*it);
1522         }
1523
1524         // The single '=' is meant here.
1525         else if ((newinsetlayout = findInsetLayout(parent_context.textclass, name, false))) {
1526                 eat_whitespace(p, os, parent_context, false);
1527                 parent_context.check_layout(os);
1528                 begin_inset(os, "Flex ");
1529                 os << to_utf8(newinsetlayout->name()) << '\n'
1530                    << "status collapsed\n";
1531                 parse_text_in_inset(p, os, FLAG_END, false, parent_context, newinsetlayout);
1532                 end_inset(os);
1533         }
1534
1535         else if (name == "appendix") {
1536                 // This is no good latex style, but it works and is used in some documents...
1537                 eat_whitespace(p, os, parent_context, false);
1538                 parent_context.check_end_layout(os);
1539                 Context context(true, parent_context.textclass, parent_context.layout,
1540                                 parent_context.layout, parent_context.font);
1541                 context.check_layout(os);
1542                 os << "\\start_of_appendix\n";
1543                 parse_text(p, os, FLAG_END, outer, context);
1544                 context.check_end_layout(os);
1545                 p.skip_spaces();
1546         }
1547
1548         else if (known_environments.find(name) != known_environments.end()) {
1549                 vector<ArgumentType> arguments = known_environments[name];
1550                 // The last "argument" denotes wether we may translate the
1551                 // environment contents to LyX
1552                 // The default required if no argument is given makes us
1553                 // compatible with the reLyXre environment.
1554                 ArgumentType contents = arguments.empty() ?
1555                         required :
1556                         arguments.back();
1557                 if (!arguments.empty())
1558                         arguments.pop_back();
1559                 // See comment in parse_unknown_environment()
1560                 bool const specialfont =
1561                         (parent_context.font != parent_context.normalfont);
1562                 bool const new_layout_allowed =
1563                         parent_context.new_layout_allowed;
1564                 if (specialfont)
1565                         parent_context.new_layout_allowed = false;
1566                 parse_arguments("\\begin{" + name + "}", arguments, p, os,
1567                                 outer, parent_context);
1568                 if (contents == verbatim)
1569                         handle_ert(os, p.verbatimEnvironment(name),
1570                                    parent_context);
1571                 else
1572                         parse_text_snippet(p, os, FLAG_END, outer,
1573                                            parent_context);
1574                 handle_ert(os, "\\end{" + name + "}", parent_context);
1575                 if (specialfont)
1576                         parent_context.new_layout_allowed = new_layout_allowed;
1577         }
1578
1579         else
1580                 parse_unknown_environment(p, name, os, FLAG_END, outer,
1581                                           parent_context);
1582
1583         last_env = name;
1584         active_environments.pop_back();
1585 }
1586
1587
1588 /// parses a comment and outputs it to \p os.
1589 void parse_comment(Parser & p, ostream & os, Token const & t, Context & context)
1590 {
1591         LASSERT(t.cat() == catComment, return);
1592         if (!t.cs().empty()) {
1593                 context.check_layout(os);
1594                 handle_comment(os, '%' + t.cs(), context);
1595                 if (p.next_token().cat() == catNewline) {
1596                         // A newline after a comment line starts a new
1597                         // paragraph
1598                         if (context.new_layout_allowed) {
1599                                 if(!context.atParagraphStart())
1600                                         // Only start a new paragraph if not already
1601                                         // done (we might get called recursively)
1602                                         context.new_paragraph(os);
1603                         } else
1604                                 handle_ert(os, "\n", context);
1605                         eat_whitespace(p, os, context, true);
1606                 }
1607         } else {
1608                 // "%\n" combination
1609                 p.skip_spaces();
1610         }
1611 }
1612
1613
1614 /*!
1615  * Reads spaces and comments until the first non-space, non-comment token.
1616  * New paragraphs (double newlines or \\par) are handled like simple spaces
1617  * if \p eatParagraph is true.
1618  * Spaces are skipped, but comments are written to \p os.
1619  */
1620 void eat_whitespace(Parser & p, ostream & os, Context & context,
1621                     bool eatParagraph)
1622 {
1623         while (p.good()) {
1624                 Token const & t = p.get_token();
1625                 if (t.cat() == catComment)
1626                         parse_comment(p, os, t, context);
1627                 else if ((! eatParagraph && p.isParagraph()) ||
1628                          (t.cat() != catSpace && t.cat() != catNewline)) {
1629                         p.putback();
1630                         return;
1631                 }
1632         }
1633 }
1634
1635
1636 /*!
1637  * Set a font attribute, parse text and reset the font attribute.
1638  * \param attribute Attribute name (e.g. \\family, \\shape etc.)
1639  * \param currentvalue Current value of the attribute. Is set to the new
1640  * value during parsing.
1641  * \param newvalue New value of the attribute
1642  */
1643 void parse_text_attributes(Parser & p, ostream & os, unsigned flags, bool outer,
1644                            Context & context, string const & attribute,
1645                            string & currentvalue, string const & newvalue)
1646 {
1647         context.check_layout(os);
1648         string const oldvalue = currentvalue;
1649         currentvalue = newvalue;
1650         os << '\n' << attribute << ' ' << newvalue << "\n";
1651         parse_text_snippet(p, os, flags, outer, context);
1652         context.check_layout(os);
1653         os << '\n' << attribute << ' ' << oldvalue << "\n";
1654         currentvalue = oldvalue;
1655 }
1656
1657
1658 /// get the arguments of a natbib or jurabib citation command
1659 void get_cite_arguments(Parser & p, bool natbibOrder,
1660         string & before, string & after)
1661 {
1662         // We need to distinguish "" and "[]", so we can't use p.getOpt().
1663
1664         // text before the citation
1665         before.clear();
1666         // text after the citation
1667         after = p.getFullOpt();
1668
1669         if (!after.empty()) {
1670                 before = p.getFullOpt();
1671                 if (natbibOrder && !before.empty())
1672                         swap(before, after);
1673         }
1674 }
1675
1676
1677 /// Convert filenames with TeX macros and/or quotes to something LyX
1678 /// can understand
1679 string const normalize_filename(string const & name)
1680 {
1681         Parser p(trim(name, "\""));
1682         ostringstream os;
1683         while (p.good()) {
1684                 Token const & t = p.get_token();
1685                 if (t.cat() != catEscape)
1686                         os << t.asInput();
1687                 else if (t.cs() == "lyxdot") {
1688                         // This is used by LyX for simple dots in relative
1689                         // names
1690                         os << '.';
1691                         p.skip_spaces();
1692                 } else if (t.cs() == "space") {
1693                         os << ' ';
1694                         p.skip_spaces();
1695                 } else
1696                         os << t.asInput();
1697         }
1698         return os.str();
1699 }
1700
1701
1702 /// Convert \p name from TeX convention (relative to master file) to LyX
1703 /// convention (relative to .lyx file) if it is relative
1704 void fix_relative_filename(string & name)
1705 {
1706         if (FileName::isAbsolute(name))
1707                 return;
1708
1709         name = to_utf8(makeRelPath(from_utf8(makeAbsPath(name, getMasterFilePath()).absFileName()),
1710                                    from_utf8(getParentFilePath())));
1711 }
1712
1713
1714 /// Parse a NoWeb Scrap section. The initial "<<" is already parsed.
1715 void parse_noweb(Parser & p, ostream & os, Context & context)
1716 {
1717         // assemble the rest of the keyword
1718         string name("<<");
1719         bool scrap = false;
1720         while (p.good()) {
1721                 Token const & t = p.get_token();
1722                 if (t.asInput() == ">" && p.next_token().asInput() == ">") {
1723                         name += ">>";
1724                         p.get_token();
1725                         scrap = (p.good() && p.next_token().asInput() == "=");
1726                         if (scrap)
1727                                 name += p.get_token().asInput();
1728                         break;
1729                 }
1730                 name += t.asInput();
1731         }
1732
1733         if (!scrap || !context.new_layout_allowed ||
1734             !context.textclass.hasLayout(from_ascii("Scrap"))) {
1735                 cerr << "Warning: Could not interpret '" << name
1736                      << "'. Ignoring it." << endl;
1737                 return;
1738         }
1739
1740         // We use new_paragraph instead of check_end_layout because the stuff
1741         // following the noweb chunk needs to start with a \begin_layout.
1742         // This may create a new paragraph even if there was none in the
1743         // noweb file, but the alternative is an invalid LyX file. Since
1744         // noweb code chunks are implemented with a layout style in LyX they
1745         // always must be in an own paragraph.
1746         context.new_paragraph(os);
1747         Context newcontext(true, context.textclass,
1748                 &context.textclass[from_ascii("Scrap")]);
1749         newcontext.check_layout(os);
1750         os << name;
1751         while (p.good()) {
1752                 Token const & t = p.get_token();
1753                 // We abuse the parser a bit, because this is no TeX syntax
1754                 // at all.
1755                 if (t.cat() == catEscape)
1756                         os << subst(t.asInput(), "\\", "\n\\backslash\n");
1757                 else {
1758                         ostringstream oss;
1759                         Context tmp(false, context.textclass,
1760                                     &context.textclass[from_ascii("Scrap")]);
1761                         tmp.need_end_layout = true;
1762                         tmp.check_layout(oss);
1763                         os << subst(t.asInput(), "\n", oss.str());
1764                 }
1765                 // The scrap chunk is ended by an @ at the beginning of a line.
1766                 // After the @ the line may contain a comment and/or
1767                 // whitespace, but nothing else.
1768                 if (t.asInput() == "@" && p.prev_token().cat() == catNewline &&
1769                     (p.next_token().cat() == catSpace ||
1770                      p.next_token().cat() == catNewline ||
1771                      p.next_token().cat() == catComment)) {
1772                         while (p.good() && p.next_token().cat() == catSpace)
1773                                 os << p.get_token().asInput();
1774                         if (p.next_token().cat() == catComment)
1775                                 // The comment includes a final '\n'
1776                                 os << p.get_token().asInput();
1777                         else {
1778                                 if (p.next_token().cat() == catNewline)
1779                                         p.get_token();
1780                                 os << '\n';
1781                         }
1782                         break;
1783                 }
1784         }
1785         newcontext.check_end_layout(os);
1786 }
1787
1788
1789 /// detects \\def, \\long\\def and \\global\\long\\def with ws and comments
1790 bool is_macro(Parser & p)
1791 {
1792         Token first = p.curr_token();
1793         if (first.cat() != catEscape || !p.good())
1794                 return false;
1795         if (first.cs() == "def")
1796                 return true;
1797         if (first.cs() != "global" && first.cs() != "long")
1798                 return false;
1799         Token second = p.get_token();
1800         int pos = 1;
1801         while (p.good() && !p.isParagraph() && (second.cat() == catSpace ||
1802                second.cat() == catNewline || second.cat() == catComment)) {
1803                 second = p.get_token();
1804                 pos++;
1805         }
1806         bool secondvalid = second.cat() == catEscape;
1807         Token third;
1808         bool thirdvalid = false;
1809         if (p.good() && first.cs() == "global" && secondvalid &&
1810             second.cs() == "long") {
1811                 third = p.get_token();
1812                 pos++;
1813                 while (p.good() && !p.isParagraph() &&
1814                        (third.cat() == catSpace ||
1815                         third.cat() == catNewline ||
1816                         third.cat() == catComment)) {
1817                         third = p.get_token();
1818                         pos++;
1819                 }
1820                 thirdvalid = third.cat() == catEscape;
1821         }
1822         for (int i = 0; i < pos; ++i)
1823                 p.putback();
1824         if (!secondvalid)
1825                 return false;
1826         if (!thirdvalid)
1827                 return (first.cs() == "global" || first.cs() == "long") &&
1828                        second.cs() == "def";
1829         return first.cs() == "global" && second.cs() == "long" &&
1830                third.cs() == "def";
1831 }
1832
1833
1834 /// Parse a macro definition (assumes that is_macro() returned true)
1835 void parse_macro(Parser & p, ostream & os, Context & context)
1836 {
1837         context.check_layout(os);
1838         Token first = p.curr_token();
1839         Token second;
1840         Token third;
1841         string command = first.asInput();
1842         if (first.cs() != "def") {
1843                 p.get_token();
1844                 eat_whitespace(p, os, context, false);
1845                 second = p.curr_token();
1846                 command += second.asInput();
1847                 if (second.cs() != "def") {
1848                         p.get_token();
1849                         eat_whitespace(p, os, context, false);
1850                         third = p.curr_token();
1851                         command += third.asInput();
1852                 }
1853         }
1854         eat_whitespace(p, os, context, false);
1855         string const name = p.get_token().cs();
1856         eat_whitespace(p, os, context, false);
1857
1858         // parameter text
1859         bool simple = true;
1860         string paramtext;
1861         int arity = 0;
1862         while (p.next_token().cat() != catBegin) {
1863                 if (p.next_token().cat() == catParameter) {
1864                         // # found
1865                         p.get_token();
1866                         paramtext += "#";
1867
1868                         // followed by number?
1869                         if (p.next_token().cat() == catOther) {
1870                                 char c = p.getChar();
1871                                 paramtext += c;
1872                                 // number = current arity + 1?
1873                                 if (c == arity + '0' + 1)
1874                                         ++arity;
1875                                 else
1876                                         simple = false;
1877                         } else
1878                                 paramtext += p.get_token().cs();
1879                 } else {
1880                         paramtext += p.get_token().cs();
1881                         simple = false;
1882                 }
1883         }
1884
1885         // only output simple (i.e. compatible) macro as FormulaMacros
1886         string ert = '\\' + name + ' ' + paramtext + '{' + p.verbatim_item() + '}';
1887         if (simple) {
1888                 context.check_layout(os);
1889                 begin_inset(os, "FormulaMacro");
1890                 os << "\n\\def" << ert;
1891                 end_inset(os);
1892         } else
1893                 handle_ert(os, command + ert, context);
1894 }
1895
1896 } // anonymous namespace
1897
1898
1899 void parse_text(Parser & p, ostream & os, unsigned flags, bool outer,
1900                 Context & context)
1901 {
1902         Layout const * newlayout = 0;
1903         InsetLayout const * newinsetlayout = 0;
1904         char const * const * where = 0;
1905         // Store the latest bibliographystyle and nocite{*} option
1906         // (needed for bibtex inset)
1907         string btprint;
1908         string bibliographystyle;
1909         bool const use_natbib = preamble.isPackageUsed("natbib");
1910         bool const use_jurabib = preamble.isPackageUsed("jurabib");
1911         string last_env;
1912         bool title_layout_found = false;
1913         while (p.good()) {
1914                 Token const & t = p.get_token();
1915
1916 #ifdef FILEDEBUG
1917                 debugToken(cerr, t, flags);
1918 #endif
1919
1920                 if (flags & FLAG_ITEM) {
1921                         if (t.cat() == catSpace)
1922                                 continue;
1923
1924                         flags &= ~FLAG_ITEM;
1925                         if (t.cat() == catBegin) {
1926                                 // skip the brace and collect everything to the next matching
1927                                 // closing brace
1928                                 flags |= FLAG_BRACE_LAST;
1929                                 continue;
1930                         }
1931
1932                         // handle only this single token, leave the loop if done
1933                         flags |= FLAG_LEAVE;
1934                 }
1935
1936                 if (t.cat() != catEscape && t.character() == ']' &&
1937                     (flags & FLAG_BRACK_LAST))
1938                         return;
1939                 if (t.cat() == catEnd && (flags & FLAG_BRACE_LAST))
1940                         return;
1941
1942                 // If there is anything between \end{env} and \begin{env} we
1943                 // don't need to output a separator.
1944                 if (t.cat() != catSpace && t.cat() != catNewline &&
1945                     t.asInput() != "\\begin")
1946                         last_env = "";
1947
1948                 //
1949                 // cat codes
1950                 //
1951                 if (t.cat() == catMath) {
1952                         // we are inside some text mode thingy, so opening new math is allowed
1953                         context.check_layout(os);
1954                         begin_inset(os, "Formula ");
1955                         Token const & n = p.get_token();
1956                         bool const display(n.cat() == catMath && outer);
1957                         if (display) {
1958                                 // TeX's $$...$$ syntax for displayed math
1959                                 os << "\\[";
1960                                 parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
1961                                 os << "\\]";
1962                                 p.get_token(); // skip the second '$' token
1963                         } else {
1964                                 // simple $...$  stuff
1965                                 p.putback();
1966                                 os << '$';
1967                                 parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
1968                                 os << '$';
1969                         }
1970                         end_inset(os);
1971                         if (display) {
1972                                 // Prevent the conversion of a line break to a
1973                                 // space (bug 7668). This does not change the
1974                                 // output, but looks ugly in LyX.
1975                                 eat_whitespace(p, os, context, false);
1976                         }
1977                 }
1978
1979                 else if (t.cat() == catSuper || t.cat() == catSub)
1980                         cerr << "catcode " << t << " illegal in text mode\n";
1981
1982                 // Basic support for english quotes. This should be
1983                 // extended to other quotes, but is not so easy (a
1984                 // left english quote is the same as a right german
1985                 // quote...)
1986                 else if (t.asInput() == "`" && p.next_token().asInput() == "`") {
1987                         context.check_layout(os);
1988                         begin_inset(os, "Quotes ");
1989                         os << "eld";
1990                         end_inset(os);
1991                         p.get_token();
1992                         skip_braces(p);
1993                 }
1994                 else if (t.asInput() == "'" && p.next_token().asInput() == "'") {
1995                         context.check_layout(os);
1996                         begin_inset(os, "Quotes ");
1997                         os << "erd";
1998                         end_inset(os);
1999                         p.get_token();
2000                         skip_braces(p);
2001                 }
2002
2003                 else if (t.asInput() == ">" && p.next_token().asInput() == ">") {
2004                         context.check_layout(os);
2005                         begin_inset(os, "Quotes ");
2006                         os << "ald";
2007                         end_inset(os);
2008                         p.get_token();
2009                         skip_braces(p);
2010                 }
2011
2012                 else if (t.asInput() == "<" && p.next_token().asInput() == "<") {
2013                         context.check_layout(os);
2014                         begin_inset(os, "Quotes ");
2015                         os << "ard";
2016                         end_inset(os);
2017                         p.get_token();
2018                         skip_braces(p);
2019                 }
2020
2021                 else if (t.asInput() == "<"
2022                          && p.next_token().asInput() == "<" && noweb_mode) {
2023                         p.get_token();
2024                         parse_noweb(p, os, context);
2025                 }
2026
2027                 else if (t.cat() == catSpace || (t.cat() == catNewline && ! p.isParagraph()))
2028                         check_space(p, os, context);
2029
2030                 else if (t.character() == '[' && noweb_mode &&
2031                          p.next_token().character() == '[') {
2032                         // These can contain underscores
2033                         p.putback();
2034                         string const s = p.getFullOpt() + ']';
2035                         if (p.next_token().character() == ']')
2036                                 p.get_token();
2037                         else
2038                                 cerr << "Warning: Inserting missing ']' in '"
2039                                      << s << "'." << endl;
2040                         handle_ert(os, s, context);
2041                 }
2042
2043                 else if (t.cat() == catLetter) {
2044                         context.check_layout(os);
2045                         // Workaround for bug 4752.
2046                         // FIXME: This whole code block needs to be removed
2047                         //        when the bug is fixed and tex2lyx produces
2048                         //        the updated file format.
2049                         // The replacement algorithm in LyX is so stupid that
2050                         // it even translates a phrase if it is part of a word.
2051                         bool handled = false;
2052                         for (int const * l = known_phrase_lengths; *l; ++l) {
2053                                 string phrase = t.cs();
2054                                 for (int i = 1; i < *l && p.next_token().isAlnumASCII(); ++i)
2055                                         phrase += p.get_token().cs();
2056                                 if (is_known(phrase, known_coded_phrases)) {
2057                                         handle_ert(os, phrase, context);
2058                                         handled = true;
2059                                         break;
2060                                 } else {
2061                                         for (size_t i = 1; i < phrase.length(); ++i)
2062                                                 p.putback();
2063                                 }
2064                         }
2065                         if (!handled)
2066                                 os << t.cs();
2067                 }
2068
2069                 else if (t.cat() == catOther ||
2070                                t.cat() == catAlign ||
2071                                t.cat() == catParameter) {
2072                         // This translates "&" to "\\&" which may be wrong...
2073                         context.check_layout(os);
2074                         os << t.cs();
2075                 }
2076
2077                 else if (p.isParagraph()) {
2078                         if (context.new_layout_allowed)
2079                                 context.new_paragraph(os);
2080                         else
2081                                 handle_ert(os, "\\par ", context);
2082                         eat_whitespace(p, os, context, true);
2083                 }
2084
2085                 else if (t.cat() == catActive) {
2086                         context.check_layout(os);
2087                         if (t.character() == '~') {
2088                                 if (context.layout->free_spacing)
2089                                         os << ' ';
2090                                 else {
2091                                         begin_inset(os, "space ~\n");
2092                                         end_inset(os);
2093                                 }
2094                         } else
2095                                 os << t.cs();
2096                 }
2097
2098                 else if (t.cat() == catBegin) {
2099                         Token const next = p.next_token();
2100                         Token const end = p.next_next_token();
2101                         if (next.cat() == catEnd) {
2102                         // {}
2103                         Token const prev = p.prev_token();
2104                         p.get_token();
2105                         if (p.next_token().character() == '`' ||
2106                             (prev.character() == '-' &&
2107                              p.next_token().character() == '-'))
2108                                 ; // ignore it in {}`` or -{}-
2109                         else
2110                                 handle_ert(os, "{}", context);
2111                         } else if (next.cat() == catEscape &&
2112                                    is_known(next.cs(), known_quotes) &&
2113                                    end.cat() == catEnd) {
2114                                 // Something like {\textquoteright} (e.g.
2115                                 // from writer2latex). LyX writes
2116                                 // \textquoteright{}, so we may skip the
2117                                 // braces here for better readability.
2118                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
2119                                                    outer, context);
2120                         } else {
2121                         context.check_layout(os);
2122                         // special handling of font attribute changes
2123                         Token const prev = p.prev_token();
2124                         TeXFont const oldFont = context.font;
2125                         if (next.character() == '[' ||
2126                             next.character() == ']' ||
2127                             next.character() == '*') {
2128                                 p.get_token();
2129                                 if (p.next_token().cat() == catEnd) {
2130                                         os << next.cs();
2131                                         p.get_token();
2132                                 } else {
2133                                         p.putback();
2134                                         handle_ert(os, "{", context);
2135                                         parse_text_snippet(p, os,
2136                                                         FLAG_BRACE_LAST,
2137                                                         outer, context);
2138                                         handle_ert(os, "}", context);
2139                                 }
2140                         } else if (! context.new_layout_allowed) {
2141                                 handle_ert(os, "{", context);
2142                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
2143                                                    outer, context);
2144                                 handle_ert(os, "}", context);
2145                         } else if (is_known(next.cs(), known_sizes)) {
2146                                 // next will change the size, so we must
2147                                 // reset it here
2148                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
2149                                                    outer, context);
2150                                 if (!context.atParagraphStart())
2151                                         os << "\n\\size "
2152                                            << context.font.size << "\n";
2153                         } else if (is_known(next.cs(), known_font_families)) {
2154                                 // next will change the font family, so we
2155                                 // must reset it here
2156                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
2157                                                    outer, context);
2158                                 if (!context.atParagraphStart())
2159                                         os << "\n\\family "
2160                                            << context.font.family << "\n";
2161                         } else if (is_known(next.cs(), known_font_series)) {
2162                                 // next will change the font series, so we
2163                                 // must reset it here
2164                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
2165                                                    outer, context);
2166                                 if (!context.atParagraphStart())
2167                                         os << "\n\\series "
2168                                            << context.font.series << "\n";
2169                         } else if (is_known(next.cs(), known_font_shapes)) {
2170                                 // next will change the font shape, so we
2171                                 // must reset it here
2172                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
2173                                                    outer, context);
2174                                 if (!context.atParagraphStart())
2175                                         os << "\n\\shape "
2176                                            << context.font.shape << "\n";
2177                         } else if (is_known(next.cs(), known_old_font_families) ||
2178                                    is_known(next.cs(), known_old_font_series) ||
2179                                    is_known(next.cs(), known_old_font_shapes)) {
2180                                 // next will change the font family, series
2181                                 // and shape, so we must reset it here
2182                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
2183                                                    outer, context);
2184                                 if (!context.atParagraphStart())
2185                                         os <<  "\n\\family "
2186                                            << context.font.family
2187                                            << "\n\\series "
2188                                            << context.font.series
2189                                            << "\n\\shape "
2190                                            << context.font.shape << "\n";
2191                         } else {
2192                                 handle_ert(os, "{", context);
2193                                 parse_text_snippet(p, os, FLAG_BRACE_LAST,
2194                                                    outer, context);
2195                                 handle_ert(os, "}", context);
2196                                 }
2197                         }
2198                 }
2199
2200                 else if (t.cat() == catEnd) {
2201                         if (flags & FLAG_BRACE_LAST) {
2202                                 return;
2203                         }
2204                         cerr << "stray '}' in text\n";
2205                         handle_ert(os, "}", context);
2206                 }
2207
2208                 else if (t.cat() == catComment)
2209                         parse_comment(p, os, t, context);
2210
2211                 //
2212                 // control sequences
2213                 //
2214
2215                 else if (t.cs() == "(") {
2216                         context.check_layout(os);
2217                         begin_inset(os, "Formula");
2218                         os << " \\(";
2219                         parse_math(p, os, FLAG_SIMPLE2, MATH_MODE);
2220                         os << "\\)";
2221                         end_inset(os);
2222                 }
2223
2224                 else if (t.cs() == "[") {
2225                         context.check_layout(os);
2226                         begin_inset(os, "Formula");
2227                         os << " \\[";
2228                         parse_math(p, os, FLAG_EQUATION, MATH_MODE);
2229                         os << "\\]";
2230                         end_inset(os);
2231                         // Prevent the conversion of a line break to a space
2232                         // (bug 7668). This does not change the output, but
2233                         // looks ugly in LyX.
2234                         eat_whitespace(p, os, context, false);
2235                 }
2236
2237                 else if (t.cs() == "begin")
2238                         parse_environment(p, os, outer, last_env,
2239                                           title_layout_found, context);
2240
2241                 else if (t.cs() == "end") {
2242                         if (flags & FLAG_END) {
2243                                 // eat environment name
2244                                 string const name = p.getArg('{', '}');
2245                                 if (name != active_environment())
2246                                         cerr << "\\end{" + name + "} does not match \\begin{"
2247                                                 + active_environment() + "}\n";
2248                                 return;
2249                         }
2250                         p.error("found 'end' unexpectedly");
2251                 }
2252
2253                 else if (t.cs() == "item") {
2254                         string s;
2255                         bool const optarg = p.hasOpt();
2256                         if (optarg) {
2257                                 // FIXME: This swallows comments, but we cannot use
2258                                 //        eat_whitespace() since we must not output
2259                                 //        anything before the item.
2260                                 p.skip_spaces(true);
2261                                 s = p.verbatimOption();
2262                         } else
2263                                 p.skip_spaces(false);
2264                         context.set_item();
2265                         context.check_layout(os);
2266                         if (context.has_item) {
2267                                 // An item in an unknown list-like environment
2268                                 // FIXME: Do this in check_layout()!
2269                                 context.has_item = false;
2270                                 if (optarg)
2271                                         handle_ert(os, "\\item", context);
2272                                 else
2273                                         handle_ert(os, "\\item ", context);
2274                         }
2275                         if (optarg) {
2276                                 if (context.layout->labeltype != LABEL_MANUAL) {
2277                                         // LyX does not support \item[\mybullet]
2278                                         // in itemize environments
2279                                         Parser p2(s + ']');
2280                                         os << parse_text_snippet(p2,
2281                                                 FLAG_BRACK_LAST, outer, context);
2282                                 } else if (!s.empty()) {
2283                                         // LyX adds braces around the argument,
2284                                         // so we need to remove them here.
2285                                         if (s.size() > 2 && s[0] == '{' &&
2286                                             s[s.size()-1] == '}')
2287                                                 s = s.substr(1, s.size()-2);
2288                                         // If the argument contains a space we
2289                                         // must put it into ERT: Otherwise LyX
2290                                         // would misinterpret the space as
2291                                         // item delimiter (bug 7663)
2292                                         if (contains(s, ' ')) {
2293                                                 handle_ert(os, s, context);
2294                                         } else {
2295                                                 Parser p2(s + ']');
2296                                                 os << parse_text_snippet(p2,
2297                                                         FLAG_BRACK_LAST,
2298                                                         outer, context);
2299                                         }
2300                                         // The space is needed to separate the
2301                                         // item from the rest of the sentence.
2302                                         os << ' ';
2303                                         eat_whitespace(p, os, context, false);
2304                                 }
2305                         }
2306                 }
2307
2308                 else if (t.cs() == "bibitem") {
2309                         context.set_item();
2310                         context.check_layout(os);
2311                         eat_whitespace(p, os, context, false);
2312                         string label = convert_command_inset_arg(p.verbatimOption());
2313                         string key = convert_command_inset_arg(p.verbatim_item());
2314                         if (contains(label, '\\') || contains(key, '\\')) {
2315                                 // LyX can't handle LaTeX commands in labels or keys
2316                                 handle_ert(os, t.asInput() + '[' + label +
2317                                                "]{" + p.verbatim_item() + '}',
2318                                            context);
2319                         } else {
2320                                 begin_command_inset(os, "bibitem", "bibitem");
2321                                 os << "label \"" << label << "\"\n"
2322                                       "key \"" << key << "\"\n";
2323                                 end_inset(os);
2324                         }
2325                 }
2326
2327                 else if (is_macro(p)) {
2328                         // catch the case of \def\inputGnumericTable
2329                         bool macro = true;
2330                         if (t.cs() == "def") {
2331                                 Token second = p.next_token();
2332                                 if (second.cs() == "inputGnumericTable") {
2333                                         p.pushPosition();
2334                                         p.get_token();
2335                                         skip_braces(p);
2336                                         Token third = p.get_token();
2337                                         p.popPosition();
2338                                         if (third.cs() == "input") {
2339                                                 p.get_token();
2340                                                 skip_braces(p);
2341                                                 p.get_token();
2342                                                 string name = normalize_filename(p.verbatim_item());
2343                                                 string const path = getMasterFilePath();
2344                                                 // We want to preserve relative / absolute filenames,
2345                                                 // therefore path is only used for testing
2346                                                 if (!makeAbsPath(name, path).exists()) {
2347                                                         // The file extension is probably missing.
2348                                                         // Now try to find it out.
2349                                                         char const * const Gnumeric_formats[] = {"gnumeric"
2350                                                                 "ods", "xls", 0};
2351                                                         string const Gnumeric_name =
2352                                                                 find_file(name, path, Gnumeric_formats);
2353                                                         if (!Gnumeric_name.empty())
2354                                                                 name = Gnumeric_name;
2355                                                 }
2356                                                 if (makeAbsPath(name, path).exists())
2357                                                         fix_relative_filename(name);
2358                                                 else
2359                                                         cerr << "Warning: Could not find file '"
2360                                                              << name << "'." << endl;
2361                                                 context.check_layout(os);
2362                                                 begin_inset(os, "External\n\ttemplate ");
2363                                                 os << "GnumericSpreadsheet\n\tfilename "
2364                                                    << name << "\n";
2365                                                 end_inset(os);
2366                                                 context.check_layout(os);
2367                                                 macro = false;
2368                                         }
2369                                 }
2370                         }
2371                         if (macro)
2372                                 parse_macro(p, os, context);
2373                 }
2374
2375                 else if (t.cs() == "noindent") {
2376                         p.skip_spaces();
2377                         context.add_par_extra_stuff("\\noindent\n");
2378                 }
2379
2380                 else if (t.cs() == "appendix") {
2381                         context.add_par_extra_stuff("\\start_of_appendix\n");
2382                         // We need to start a new paragraph. Otherwise the
2383                         // appendix in 'bla\appendix\chapter{' would start
2384                         // too late.
2385                         context.new_paragraph(os);
2386                         // We need to make sure that the paragraph is
2387                         // generated even if it is empty. Otherwise the
2388                         // appendix in '\par\appendix\par\chapter{' would
2389                         // start too late.
2390                         context.check_layout(os);
2391                         // FIXME: This is a hack to prevent paragraph
2392                         // deletion if it is empty. Handle this better!
2393                         handle_comment(os,
2394                                 "%dummy comment inserted by tex2lyx to "
2395                                 "ensure that this paragraph is not empty",
2396                                 context);
2397                         // Both measures above may generate an additional
2398                         // empty paragraph, but that does not hurt, because
2399                         // whitespace does not matter here.
2400                         eat_whitespace(p, os, context, true);
2401                 }
2402
2403                 // Must catch empty dates before findLayout is called below
2404                 else if (t.cs() == "date") {
2405                         string const date = p.verbatim_item();
2406                         if (date.empty())
2407                                 preamble.suppressDate(true);
2408                         else {
2409                                 preamble.suppressDate(false);
2410                                 if (context.new_layout_allowed &&
2411                                     (newlayout = findLayout(context.textclass,
2412                                                             t.cs(), true))) {
2413                                         // write the layout
2414                                         output_command_layout(os, p, outer,
2415                                                         context, newlayout);
2416                                         p.skip_spaces();
2417                                         if (!title_layout_found)
2418                                                 title_layout_found = newlayout->intitle;
2419                                         set<string> const & req = newlayout->requires();
2420                                         for (set<string>::const_iterator it = req.begin();
2421                                              it != req.end(); it++)
2422                                                 preamble.registerAutomaticallyLoadedPackage(*it);
2423                                 } else
2424                                         handle_ert(os, "\\date{" + date + '}',
2425                                                         context);
2426                         }
2427                 }
2428
2429                 // Starred section headings
2430                 // Must attempt to parse "Section*" before "Section".
2431                 else if ((p.next_token().asInput() == "*") &&
2432                          context.new_layout_allowed &&
2433                          (newlayout = findLayout(context.textclass, t.cs() + '*', true))) {
2434                         // write the layout
2435                         p.get_token();
2436                         output_command_layout(os, p, outer, context, newlayout);
2437                         p.skip_spaces();
2438                         if (!title_layout_found)
2439                                 title_layout_found = newlayout->intitle;
2440                         set<string> const & req = newlayout->requires();
2441                         for (set<string>::const_iterator it = req.begin(); it != req.end(); it++)
2442                                 preamble.registerAutomaticallyLoadedPackage(*it);
2443                 }
2444
2445                 // Section headings and the like
2446                 else if (context.new_layout_allowed &&
2447                          (newlayout = findLayout(context.textclass, t.cs(), true))) {
2448                         // write the layout
2449                         output_command_layout(os, p, outer, context, newlayout);
2450                         p.skip_spaces();
2451                         if (!title_layout_found)
2452                                 title_layout_found = newlayout->intitle;
2453                         set<string> const & req = newlayout->requires();
2454                         for (set<string>::const_iterator it = req.begin(); it != req.end(); it++)
2455                                 preamble.registerAutomaticallyLoadedPackage(*it);
2456                 }
2457
2458                 else if (t.cs() == "caption") {
2459                         p.skip_spaces();
2460                         context.check_layout(os);
2461                         p.skip_spaces();
2462                         begin_inset(os, "Caption\n");
2463                         Context newcontext(true, context.textclass);
2464                         newcontext.font = context.font;
2465                         newcontext.check_layout(os);
2466                         if (p.next_token().cat() != catEscape &&
2467                             p.next_token().character() == '[') {
2468                                 p.get_token(); // eat '['
2469                                 begin_inset(os, "Argument\n");
2470                                 os << "status collapsed\n";
2471                                 parse_text_in_inset(p, os, FLAG_BRACK_LAST, outer, context);
2472                                 end_inset(os);
2473                                 eat_whitespace(p, os, context, false);
2474                         }
2475                         parse_text(p, os, FLAG_ITEM, outer, context);
2476                         context.check_end_layout(os);
2477                         // We don't need really a new paragraph, but
2478                         // we must make sure that the next item gets a \begin_layout.
2479                         context.new_paragraph(os);
2480                         end_inset(os);
2481                         p.skip_spaces();
2482                         newcontext.check_end_layout(os);
2483                 }
2484
2485                 else if (t.cs() == "subfloat") {
2486                         // the syntax is \subfloat[caption]{content}
2487                         // if it is a table of figure depends on the surrounding float
2488                         bool has_caption = false;
2489                         p.skip_spaces();
2490                         // do nothing if there is no outer float
2491                         if (!float_type.empty()) {
2492                                 context.check_layout(os);
2493                                 p.skip_spaces();
2494                                 begin_inset(os, "Float " + float_type + "\n");
2495                                 os << "wide false"
2496                                    << "\nsideways false"
2497                                    << "\nstatus collapsed\n\n";
2498                                 // test for caption
2499                                 string caption;
2500                                 if (p.next_token().cat() != catEscape &&
2501                                                 p.next_token().character() == '[') {
2502                                                         p.get_token(); // eat '['
2503                                                         caption = parse_text_snippet(p, FLAG_BRACK_LAST, outer, context);
2504                                                         has_caption = true;
2505                                 }
2506                                 // the content
2507                                 parse_text_in_inset(p, os, FLAG_ITEM, outer, context);
2508                                 // the caption comes always as the last
2509                                 if (has_caption) {
2510                                         // we must make sure that the caption gets a \begin_layout
2511                                         os << "\n\\begin_layout Plain Layout";
2512                                         p.skip_spaces();
2513                                         begin_inset(os, "Caption\n");
2514                                         Context newcontext(true, context.textclass);
2515                                         newcontext.font = context.font;
2516                                         newcontext.check_layout(os);
2517                                         os << caption << "\n";
2518                                         newcontext.check_end_layout(os);
2519                                         // We don't need really a new paragraph, but
2520                                         // we must make sure that the next item gets a \begin_layout.
2521                                         //newcontext.new_paragraph(os);
2522                                         end_inset(os);
2523                                         p.skip_spaces();
2524                                 }
2525                                 // We don't need really a new paragraph, but
2526                                 // we must make sure that the next item gets a \begin_layout.
2527                                 if (has_caption)
2528                                         context.new_paragraph(os);
2529                                 end_inset(os);
2530                                 p.skip_spaces();
2531                                 context.check_end_layout(os);
2532                                 // close the layout we opened
2533                                 if (has_caption)
2534                                         os << "\n\\end_layout\n";
2535                         } else {
2536                                 // if the float type is not supported or there is no surrounding float
2537                                 // output it as ERT
2538                                 if (p.hasOpt()) {
2539                                         string opt_arg = convert_command_inset_arg(p.getArg('[', ']'));
2540                                         handle_ert(os, t.asInput() + '[' + opt_arg +
2541                                                "]{" + p.verbatim_item() + '}', context);
2542                                 } else
2543                                         handle_ert(os, t.asInput() + "{" + p.verbatim_item() + '}', context);
2544                         }
2545                 }
2546
2547                 else if (t.cs() == "includegraphics") {
2548                         bool const clip = p.next_token().asInput() == "*";
2549                         if (clip)
2550                                 p.get_token();
2551                         string const arg = p.getArg('[', ']');
2552                         map<string, string> opts;
2553                         vector<string> keys;
2554                         split_map(arg, opts, keys);
2555                         if (clip)
2556                                 opts["clip"] = string();
2557                         string name = normalize_filename(p.verbatim_item());
2558
2559                         string const path = getMasterFilePath();
2560                         // We want to preserve relative / absolute filenames,
2561                         // therefore path is only used for testing
2562                         if (!makeAbsPath(name, path).exists()) {
2563                                 // The file extension is probably missing.
2564                                 // Now try to find it out.
2565                                 string const dvips_name =
2566                                         find_file(name, path,
2567                                                   known_dvips_graphics_formats);
2568                                 string const pdftex_name =
2569                                         find_file(name, path,
2570                                                   known_pdftex_graphics_formats);
2571                                 if (!dvips_name.empty()) {
2572                                         if (!pdftex_name.empty()) {
2573                                                 cerr << "This file contains the "
2574                                                         "latex snippet\n"
2575                                                         "\"\\includegraphics{"
2576                                                      << name << "}\".\n"
2577                                                         "However, files\n\""
2578                                                      << dvips_name << "\" and\n\""
2579                                                      << pdftex_name << "\"\n"
2580                                                         "both exist, so I had to make a "
2581                                                         "choice and took the first one.\n"
2582                                                         "Please move the unwanted one "
2583                                                         "someplace else and try again\n"
2584                                                         "if my choice was wrong."
2585                                                      << endl;
2586                                         }
2587                                         name = dvips_name;
2588                                 } else if (!pdftex_name.empty()) {
2589                                         name = pdftex_name;
2590                                         pdflatex = true;
2591                                 }
2592                         }
2593
2594                         if (makeAbsPath(name, path).exists())
2595                                 fix_relative_filename(name);
2596                         else
2597                                 cerr << "Warning: Could not find graphics file '"
2598                                      << name << "'." << endl;
2599
2600                         context.check_layout(os);
2601                         begin_inset(os, "Graphics ");
2602                         os << "\n\tfilename " << name << '\n';
2603                         if (opts.find("width") != opts.end())
2604                                 os << "\twidth "
2605                                    << translate_len(opts["width"]) << '\n';
2606                         if (opts.find("height") != opts.end())
2607                                 os << "\theight "
2608                                    << translate_len(opts["height"]) << '\n';
2609                         if (opts.find("scale") != opts.end()) {
2610                                 istringstream iss(opts["scale"]);
2611                                 double val;
2612                                 iss >> val;
2613                                 val = val*100;
2614                                 os << "\tscale " << val << '\n';
2615                         }
2616                         if (opts.find("angle") != opts.end()) {
2617                                 os << "\trotateAngle "
2618                                    << opts["angle"] << '\n';
2619                                 vector<string>::const_iterator a =
2620                                         find(keys.begin(), keys.end(), "angle");
2621                                 vector<string>::const_iterator s =
2622                                         find(keys.begin(), keys.end(), "width");
2623                                 if (s == keys.end())
2624                                         s = find(keys.begin(), keys.end(), "height");
2625                                 if (s == keys.end())
2626                                         s = find(keys.begin(), keys.end(), "scale");
2627                                 if (s != keys.end() && distance(s, a) > 0)
2628                                         os << "\tscaleBeforeRotation\n";
2629                         }
2630                         if (opts.find("origin") != opts.end()) {
2631                                 ostringstream ss;
2632                                 string const opt = opts["origin"];
2633                                 if (opt.find('l') != string::npos) ss << "left";
2634                                 if (opt.find('r') != string::npos) ss << "right";
2635                                 if (opt.find('c') != string::npos) ss << "center";
2636                                 if (opt.find('t') != string::npos) ss << "Top";
2637                                 if (opt.find('b') != string::npos) ss << "Bottom";
2638                                 if (opt.find('B') != string::npos) ss << "Baseline";
2639                                 if (!ss.str().empty())
2640                                         os << "\trotateOrigin " << ss.str() << '\n';
2641                                 else
2642                                         cerr << "Warning: Ignoring unknown includegraphics origin argument '" << opt << "'\n";
2643                         }
2644                         if (opts.find("keepaspectratio") != opts.end())
2645                                 os << "\tkeepAspectRatio\n";
2646                         if (opts.find("clip") != opts.end())
2647                                 os << "\tclip\n";
2648                         if (opts.find("draft") != opts.end())
2649                                 os << "\tdraft\n";
2650                         if (opts.find("bb") != opts.end())
2651                                 os << "\tBoundingBox "
2652                                    << opts["bb"] << '\n';
2653                         int numberOfbbOptions = 0;
2654                         if (opts.find("bbllx") != opts.end())
2655                                 numberOfbbOptions++;
2656                         if (opts.find("bblly") != opts.end())
2657                                 numberOfbbOptions++;
2658                         if (opts.find("bburx") != opts.end())
2659                                 numberOfbbOptions++;
2660                         if (opts.find("bbury") != opts.end())
2661                                 numberOfbbOptions++;
2662                         if (numberOfbbOptions == 4)
2663                                 os << "\tBoundingBox "
2664                                    << opts["bbllx"] << " " << opts["bblly"] << " "
2665                                    << opts["bburx"] << " " << opts["bbury"] << '\n';
2666                         else if (numberOfbbOptions > 0)
2667                                 cerr << "Warning: Ignoring incomplete includegraphics boundingbox arguments.\n";
2668                         numberOfbbOptions = 0;
2669                         if (opts.find("natwidth") != opts.end())
2670                                 numberOfbbOptions++;
2671                         if (opts.find("natheight") != opts.end())
2672                                 numberOfbbOptions++;
2673                         if (numberOfbbOptions == 2)
2674                                 os << "\tBoundingBox 0bp 0bp "
2675                                    << opts["natwidth"] << " " << opts["natheight"] << '\n';
2676                         else if (numberOfbbOptions > 0)
2677                                 cerr << "Warning: Ignoring incomplete includegraphics boundingbox arguments.\n";
2678                         ostringstream special;
2679                         if (opts.find("hiresbb") != opts.end())
2680                                 special << "hiresbb,";
2681                         if (opts.find("trim") != opts.end())
2682                                 special << "trim,";
2683                         if (opts.find("viewport") != opts.end())
2684                                 special << "viewport=" << opts["viewport"] << ',';
2685                         if (opts.find("totalheight") != opts.end())
2686                                 special << "totalheight=" << opts["totalheight"] << ',';
2687                         if (opts.find("type") != opts.end())
2688                                 special << "type=" << opts["type"] << ',';
2689                         if (opts.find("ext") != opts.end())
2690                                 special << "ext=" << opts["ext"] << ',';
2691                         if (opts.find("read") != opts.end())
2692                                 special << "read=" << opts["read"] << ',';
2693                         if (opts.find("command") != opts.end())
2694                                 special << "command=" << opts["command"] << ',';
2695                         string s_special = special.str();
2696                         if (!s_special.empty()) {
2697                                 // We had special arguments. Remove the trailing ','.
2698                                 os << "\tspecial " << s_special.substr(0, s_special.size() - 1) << '\n';
2699                         }
2700                         // TODO: Handle the unknown settings better.
2701                         // Warn about invalid options.
2702                         // Check whether some option was given twice.
2703                         end_inset(os);
2704                 }
2705
2706                 else if (t.cs() == "footnote" ||
2707                          (t.cs() == "thanks" && context.layout->intitle)) {
2708                         p.skip_spaces();
2709                         context.check_layout(os);
2710                         begin_inset(os, "Foot\n");
2711                         os << "status collapsed\n\n";
2712                         parse_text_in_inset(p, os, FLAG_ITEM, false, context);
2713                         end_inset(os);
2714                 }
2715
2716                 else if (t.cs() == "marginpar") {
2717                         p.skip_spaces();
2718                         context.check_layout(os);
2719                         begin_inset(os, "Marginal\n");
2720                         os << "status collapsed\n\n";
2721                         parse_text_in_inset(p, os, FLAG_ITEM, false, context);
2722                         end_inset(os);
2723                 }
2724
2725                 else if (t.cs() == "ensuremath") {
2726                         p.skip_spaces();
2727                         context.check_layout(os);
2728                         string const s = p.verbatim_item();
2729                         //FIXME: this never triggers in UTF8
2730                         if (s == "\xb1" || s == "\xb3" || s == "\xb2" || s == "\xb5")
2731                                 os << s;
2732                         else
2733                                 handle_ert(os, "\\ensuremath{" + s + "}",
2734                                            context);
2735                 }
2736
2737                 else if (t.cs() == "makeindex" || t.cs() == "maketitle") {
2738                         if (title_layout_found) {
2739                                 // swallow this
2740                                 skip_spaces_braces(p);
2741                         } else
2742                                 handle_ert(os, t.asInput(), context);
2743                 }
2744
2745                 else if (t.cs() == "tableofcontents") {
2746                         context.check_layout(os);
2747                         begin_command_inset(os, "toc", "tableofcontents");
2748                         end_inset(os);
2749                         skip_spaces_braces(p);
2750                 }
2751
2752                 else if (t.cs() == "listoffigures") {
2753                         context.check_layout(os);
2754                         begin_inset(os, "FloatList figure\n");
2755                         end_inset(os);
2756                         skip_spaces_braces(p);
2757                 }
2758
2759                 else if (t.cs() == "listoftables") {
2760                         context.check_layout(os);
2761                         begin_inset(os, "FloatList table\n");
2762                         end_inset(os);
2763                         skip_spaces_braces(p);
2764                 }
2765
2766                 else if (t.cs() == "listof") {
2767                         p.skip_spaces(true);
2768                         string const name = p.get_token().cs();
2769                         if (context.textclass.floats().typeExist(name)) {
2770                                 context.check_layout(os);
2771                                 begin_inset(os, "FloatList ");
2772                                 os << name << "\n";
2773                                 end_inset(os);
2774                                 p.get_token(); // swallow second arg
2775                         } else
2776                                 handle_ert(os, "\\listof{" + name + "}", context);
2777                 }
2778
2779                 else if ((where = is_known(t.cs(), known_text_font_families)))
2780                         parse_text_attributes(p, os, FLAG_ITEM, outer,
2781                                 context, "\\family", context.font.family,
2782                                 known_coded_font_families[where - known_text_font_families]);
2783
2784                 else if ((where = is_known(t.cs(), known_text_font_series)))
2785                         parse_text_attributes(p, os, FLAG_ITEM, outer,
2786                                 context, "\\series", context.font.series,
2787                                 known_coded_font_series[where - known_text_font_series]);
2788
2789                 else if ((where = is_known(t.cs(), known_text_font_shapes)))
2790                         parse_text_attributes(p, os, FLAG_ITEM, outer,
2791                                 context, "\\shape", context.font.shape,
2792                                 known_coded_font_shapes[where - known_text_font_shapes]);
2793
2794                 else if (t.cs() == "textnormal" || t.cs() == "normalfont") {
2795                         context.check_layout(os);
2796                         TeXFont oldFont = context.font;
2797                         context.font.init();
2798                         context.font.size = oldFont.size;
2799                         os << "\n\\family " << context.font.family << "\n";
2800                         os << "\n\\series " << context.font.series << "\n";
2801                         os << "\n\\shape " << context.font.shape << "\n";
2802                         if (t.cs() == "textnormal") {
2803                                 parse_text_snippet(p, os, FLAG_ITEM, outer, context);
2804                                 output_font_change(os, context.font, oldFont);
2805                                 context.font = oldFont;
2806                         } else
2807                                 eat_whitespace(p, os, context, false);
2808                 }
2809
2810                 else if (t.cs() == "textcolor") {
2811                         // scheme is \textcolor{color name}{text}
2812                         string const color = p.verbatim_item();
2813                         // we only support the predefined colors of the color package
2814                         if (color == "black" || color == "blue" || color == "cyan"
2815                                 || color == "green" || color == "magenta" || color == "red"
2816                                 || color == "white" || color == "yellow") {
2817                                         context.check_layout(os);
2818                                         os << "\n\\color " << color << "\n";
2819                                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
2820                                         context.check_layout(os);
2821                                         os << "\n\\color inherit\n";
2822                                         preamble.registerAutomaticallyLoadedPackage("color");
2823                         } else
2824                                 // for custom defined colors
2825                                 handle_ert(os, t.asInput() + "{" + color + "}", context);
2826                 }
2827
2828                 else if (t.cs() == "underbar" || t.cs() == "uline") {
2829                         // \underbar is not 100% correct (LyX outputs \uline
2830                         // of ulem.sty). The difference is that \ulem allows
2831                         // line breaks, and \underbar does not.
2832                         // Do NOT handle \underline.
2833                         // \underbar cuts through y, g, q, p etc.,
2834                         // \underline does not.
2835                         context.check_layout(os);
2836                         os << "\n\\bar under\n";
2837                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
2838                         context.check_layout(os);
2839                         os << "\n\\bar default\n";
2840                         preamble.registerAutomaticallyLoadedPackage("ulem");
2841                 }
2842
2843                 else if (t.cs() == "sout") {
2844                         context.check_layout(os);
2845                         os << "\n\\strikeout on\n";
2846                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
2847                         context.check_layout(os);
2848                         os << "\n\\strikeout default\n";
2849                         preamble.registerAutomaticallyLoadedPackage("ulem");
2850                 }
2851
2852                 else if (t.cs() == "uuline" || t.cs() == "uwave" ||
2853                          t.cs() == "emph" || t.cs() == "noun") {
2854                         context.check_layout(os);
2855                         os << "\n\\" << t.cs() << " on\n";
2856                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
2857                         context.check_layout(os);
2858                         os << "\n\\" << t.cs() << " default\n";
2859                         if (t.cs() == "uuline" || t.cs() == "uwave")
2860                                 preamble.registerAutomaticallyLoadedPackage("ulem");
2861                 }
2862
2863                 else if (t.cs() == "lyxadded" || t.cs() == "lyxdeleted") {
2864                         context.check_layout(os);
2865                         string name = p.getArg('{', '}');
2866                         string localtime = p.getArg('{', '}');
2867                         preamble.registerAuthor(name);
2868                         Author const & author = preamble.getAuthor(name);
2869                         // from_ctime() will fail if LyX decides to output the
2870                         // time in the text language. It might also use a wrong
2871                         // time zone (if the original LyX document was exported
2872                         // with a different time zone).
2873                         time_t ptime = from_ctime(localtime);
2874                         if (ptime == static_cast<time_t>(-1)) {
2875                                 cerr << "Warning: Could not parse time `" << localtime
2876                                      << "´ for change tracking, using current time instead.\n";
2877                                 ptime = current_time();
2878                         }
2879                         if (t.cs() == "lyxadded")
2880                                 os << "\n\\change_inserted ";
2881                         else
2882                                 os << "\n\\change_deleted ";
2883                         os << author.bufferId() << ' ' << ptime << '\n';
2884                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
2885                         bool dvipost    = LaTeXPackages::isAvailable("dvipost");
2886                         bool xcolorulem = LaTeXPackages::isAvailable("ulem") &&
2887                                           LaTeXPackages::isAvailable("xcolor");
2888                         // No need to test for luatex, since luatex comes in
2889                         // two flavours (dvi and pdf), like latex, and those
2890                         // are detected by pdflatex.
2891                         if (pdflatex || xetex) {
2892                                 if (xcolorulem) {
2893                                         preamble.registerAutomaticallyLoadedPackage("ulem");
2894                                         preamble.registerAutomaticallyLoadedPackage("xcolor");
2895                                         preamble.registerAutomaticallyLoadedPackage("pdfcolmk");
2896                                 }
2897                         } else {
2898                                 if (dvipost) {
2899                                         preamble.registerAutomaticallyLoadedPackage("dvipost");
2900                                 } else if (xcolorulem) {
2901                                         preamble.registerAutomaticallyLoadedPackage("ulem");
2902                                         preamble.registerAutomaticallyLoadedPackage("xcolor");
2903                                 }
2904                         }
2905                 }
2906
2907                 else if (t.cs() == "phantom" || t.cs() == "hphantom" ||
2908                              t.cs() == "vphantom") {
2909                         context.check_layout(os);
2910                         if (t.cs() == "phantom")
2911                                 begin_inset(os, "Phantom Phantom\n");
2912                         if (t.cs() == "hphantom")
2913                                 begin_inset(os, "Phantom HPhantom\n");
2914                         if (t.cs() == "vphantom")
2915                                 begin_inset(os, "Phantom VPhantom\n");
2916                         os << "status open\n";
2917                         parse_text_in_inset(p, os, FLAG_ITEM, outer, context,
2918                                             "Phantom");
2919                         end_inset(os);
2920                 }
2921
2922                 else if (t.cs() == "href") {
2923                         context.check_layout(os);
2924                         string target = p.getArg('{', '}');
2925                         string name = p.getArg('{', '}');
2926                         string type;
2927                         size_t i = target.find(':');
2928                         if (i != string::npos) {
2929                                 type = target.substr(0, i + 1);
2930                                 if (type == "mailto:" || type == "file:")
2931                                         target = target.substr(i + 1);
2932                                 // handle the case that name is equal to target, except of "http://"
2933                                 else if (target.substr(i + 3) == name && type == "http:")
2934                                         target = name;
2935                         }
2936                         begin_command_inset(os, "href", "href");
2937                         if (name != target)
2938                                 os << "name \"" << name << "\"\n";
2939                         os << "target \"" << target << "\"\n";
2940                         if (type == "mailto:" || type == "file:")
2941                                 os << "type \"" << type << "\"\n";
2942                         end_inset(os);
2943                         skip_spaces_braces(p);
2944                 }
2945
2946                 else if (t.cs() == "lyxline") {
2947                         // swallow size argument (it is not used anyway)
2948                         p.getArg('{', '}');
2949                         if (!context.atParagraphStart()) {
2950                                 // so our line is in the middle of a paragraph
2951                                 // we need to add a new line, lest this line
2952                                 // follow the other content on that line and
2953                                 // run off the side of the page
2954                                 // FIXME: This may create an empty paragraph,
2955                                 //        but without that it would not be
2956                                 //        possible to set noindent below.
2957                                 //        Fortunately LaTeX does not care
2958                                 //        about the empty paragraph.
2959                                 context.new_paragraph(os);
2960                         }
2961                         if (preamble.indentParagraphs()) {
2962                                 // we need to unindent, lest the line be too long
2963                                 context.add_par_extra_stuff("\\noindent\n");
2964                         }
2965                         context.check_layout(os);
2966                         begin_command_inset(os, "line", "rule");
2967                         os << "offset \"0.5ex\"\n"
2968                               "width \"100line%\"\n"
2969                               "height \"1pt\"\n";
2970                         end_inset(os);
2971                 }
2972
2973                 else if (t.cs() == "rule") {
2974                         string const offset = (p.hasOpt() ? p.getArg('[', ']') : string());
2975                         string const width = p.getArg('{', '}');
2976                         string const thickness = p.getArg('{', '}');
2977                         context.check_layout(os);
2978                         begin_command_inset(os, "line", "rule");
2979                         if (!offset.empty())
2980                                 os << "offset \"" << translate_len(offset) << "\"\n";
2981                         os << "width \"" << translate_len(width) << "\"\n"
2982                                   "height \"" << translate_len(thickness) << "\"\n";
2983                         end_inset(os);
2984                 }
2985
2986                 else if (is_known(t.cs(), known_phrases) ||
2987                          (t.cs() == "protect" &&
2988                           p.next_token().cat() == catEscape &&
2989                           is_known(p.next_token().cs(), known_phrases))) {
2990                         // LyX sometimes puts a \protect in front, so we have to ignore it
2991                         // FIXME: This needs to be changed when bug 4752 is fixed.
2992                         where = is_known(
2993                                 t.cs() == "protect" ? p.get_token().cs() : t.cs(),
2994                                 known_phrases);
2995                         context.check_layout(os);
2996                         os << known_coded_phrases[where - known_phrases];
2997                         skip_spaces_braces(p);
2998                 }
2999
3000                 else if ((where = is_known(t.cs(), known_ref_commands))) {
3001                         string const opt = p.getOpt();
3002                         if (opt.empty()) {
3003                                 context.check_layout(os);
3004                                 begin_command_inset(os, "ref",
3005                                         known_coded_ref_commands[where - known_ref_commands]);
3006                                 os << "reference \""
3007                                    << convert_command_inset_arg(p.verbatim_item())
3008                                    << "\"\n";
3009                                 end_inset(os);
3010                         } else {
3011                                 // LyX does not support optional arguments of ref commands
3012                                 handle_ert(os, t.asInput() + '[' + opt + "]{" +
3013                                                p.verbatim_item() + "}", context);
3014                         }
3015                 }
3016
3017                 else if (use_natbib &&
3018                          is_known(t.cs(), known_natbib_commands) &&
3019                          ((t.cs() != "citefullauthor" &&
3020                            t.cs() != "citeyear" &&
3021                            t.cs() != "citeyearpar") ||
3022                           p.next_token().asInput() != "*")) {
3023                         context.check_layout(os);
3024                         string command = t.cs();
3025                         if (p.next_token().asInput() == "*") {
3026                                 command += '*';
3027                                 p.get_token();
3028                         }
3029                         if (command == "citefullauthor")
3030                                 // alternative name for "\\citeauthor*"
3031                                 command = "citeauthor*";
3032
3033                         // text before the citation
3034                         string before;
3035                         // text after the citation
3036                         string after;
3037                         get_cite_arguments(p, true, before, after);
3038
3039                         if (command == "cite") {
3040                                 // \cite without optional argument means
3041                                 // \citet, \cite with at least one optional
3042                                 // argument means \citep.
3043                                 if (before.empty() && after.empty())
3044                                         command = "citet";
3045                                 else
3046                                         command = "citep";
3047                         }
3048                         if (before.empty() && after == "[]")
3049                                 // avoid \citet[]{a}
3050                                 after.erase();
3051                         else if (before == "[]" && after == "[]") {
3052                                 // avoid \citet[][]{a}
3053                                 before.erase();
3054                                 after.erase();
3055                         }
3056                         // remove the brackets around after and before
3057                         if (!after.empty()) {
3058                                 after.erase(0, 1);
3059                                 after.erase(after.length() - 1, 1);
3060                                 after = convert_command_inset_arg(after);
3061                         }
3062                         if (!before.empty()) {
3063                                 before.erase(0, 1);
3064                                 before.erase(before.length() - 1, 1);
3065                                 before = convert_command_inset_arg(before);
3066                         }
3067                         begin_command_inset(os, "citation", command);
3068                         os << "after " << '"' << after << '"' << "\n";
3069                         os << "before " << '"' << before << '"' << "\n";
3070                         os << "key \""
3071                            << convert_command_inset_arg(p.verbatim_item())
3072                            << "\"\n";
3073                         end_inset(os);
3074                 }
3075
3076                 else if (use_jurabib &&
3077                          is_known(t.cs(), known_jurabib_commands) &&
3078                          (t.cs() == "cite" || p.next_token().asInput() != "*")) {
3079                         context.check_layout(os);
3080                         string command = t.cs();
3081                         if (p.next_token().asInput() == "*") {
3082                                 command += '*';
3083                                 p.get_token();
3084                         }
3085                         char argumentOrder = '\0';
3086                         vector<string> const options =
3087                                 preamble.getPackageOptions("jurabib");
3088                         if (find(options.begin(), options.end(),
3089                                       "natbiborder") != options.end())
3090                                 argumentOrder = 'n';
3091                         else if (find(options.begin(), options.end(),
3092                                            "jurabiborder") != options.end())
3093                                 argumentOrder = 'j';
3094
3095                         // text before the citation
3096                         string before;
3097                         // text after the citation
3098                         string after;
3099                         get_cite_arguments(p, argumentOrder != 'j', before, after);
3100
3101                         string const citation = p.verbatim_item();
3102                         if (!before.empty() && argumentOrder == '\0') {
3103                                 cerr << "Warning: Assuming argument order "
3104                                         "of jurabib version 0.6 for\n'"
3105                                      << command << before << after << '{'
3106                                      << citation << "}'.\n"
3107                                         "Add 'jurabiborder' to the jurabib "
3108                                         "package options if you used an\n"
3109                                         "earlier jurabib version." << endl;
3110                         }
3111                         if (!after.empty()) {
3112                                 after.erase(0, 1);
3113                                 after.erase(after.length() - 1, 1);
3114                         }
3115                         if (!before.empty()) {
3116                                 before.erase(0, 1);
3117                                 before.erase(before.length() - 1, 1);
3118                         }
3119                         begin_command_inset(os, "citation", command);
3120                         os << "after " << '"' << after << '"' << "\n";
3121                         os << "before " << '"' << before << '"' << "\n";
3122                         os << "key " << '"' << citation << '"' << "\n";
3123                         end_inset(os);
3124                 }
3125
3126                 else if (t.cs() == "cite"
3127                         || t.cs() == "nocite") {
3128                         context.check_layout(os);
3129                         string after = convert_command_inset_arg(p.getArg('[', ']'));
3130                         string key = convert_command_inset_arg(p.verbatim_item());
3131                         // store the case that it is "\nocite{*}" to use it later for
3132                         // the BibTeX inset
3133                         if (key != "*") {
3134                                 begin_command_inset(os, "citation", t.cs());
3135                                 os << "after " << '"' << after << '"' << "\n";
3136                                 os << "key " << '"' << key << '"' << "\n";
3137                                 end_inset(os);
3138                         } else if (t.cs() == "nocite")
3139                                 btprint = key;
3140                 }
3141
3142                 else if (t.cs() == "index") {
3143                         context.check_layout(os);
3144                         begin_inset(os, "Index idx\n");
3145                         os << "status collapsed\n";
3146                         parse_text_in_inset(p, os, FLAG_ITEM, false, context, "Index");
3147                         end_inset(os);
3148                 }
3149
3150                 else if (t.cs() == "nomenclature") {
3151                         context.check_layout(os);
3152                         begin_command_inset(os, "nomenclature", "nomenclature");
3153                         string prefix = convert_command_inset_arg(p.getArg('[', ']'));
3154                         if (!prefix.empty())
3155                                 os << "prefix " << '"' << prefix << '"' << "\n";
3156                         os << "symbol " << '"'
3157                            << convert_command_inset_arg(p.verbatim_item());
3158                         os << "\"\ndescription \""
3159                            << convert_command_inset_arg(p.verbatim_item())
3160                            << "\"\n";
3161                         end_inset(os);
3162                         preamble.registerAutomaticallyLoadedPackage("nomencl");
3163                 }
3164
3165                 else if (t.cs() == "label") {
3166                         context.check_layout(os);
3167                         begin_command_inset(os, "label", "label");
3168                         os << "name \""
3169                            << convert_command_inset_arg(p.verbatim_item())
3170                            << "\"\n";
3171                         end_inset(os);
3172                 }
3173
3174                 else if (t.cs() == "printindex") {
3175                         context.check_layout(os);
3176                         begin_command_inset(os, "index_print", "printindex");
3177                         os << "type \"idx\"\n";
3178                         end_inset(os);
3179                         skip_spaces_braces(p);
3180                         preamble.registerAutomaticallyLoadedPackage("makeidx");
3181                         if (preamble.use_indices() == "true")
3182                                 preamble.registerAutomaticallyLoadedPackage("splitidx");
3183                 }
3184
3185                 else if (t.cs() == "printnomenclature") {
3186                         string width = "";
3187                         string width_type = "";
3188                         context.check_layout(os);
3189                         begin_command_inset(os, "nomencl_print", "printnomenclature");
3190                         // case of a custom width
3191                         if (p.hasOpt()) {
3192                                 width = p.getArg('[', ']');
3193                                 width = translate_len(width);
3194                                 width_type = "custom";
3195                         }
3196                         // case of no custom width
3197                         // the case of no custom width but the width set
3198                         // via \settowidth{\nomlabelwidth}{***} cannot be supported
3199                         // because the user could have set anything, not only the width
3200                         // of the longest label (which would be width_type = "auto")
3201                         string label = convert_command_inset_arg(p.getArg('{', '}'));
3202                         if (label.empty() && width_type.empty())
3203                                 width_type = "none";
3204                         os << "set_width \"" << width_type << "\"\n";
3205                         if (width_type == "custom")
3206                                 os << "width \"" << width << '\"';
3207                         end_inset(os);
3208                         skip_spaces_braces(p);
3209                         preamble.registerAutomaticallyLoadedPackage("nomencl");
3210                 }
3211
3212                 else if ((t.cs() == "textsuperscript" || t.cs() == "textsubscript")) {
3213                         context.check_layout(os);
3214                         begin_inset(os, "script ");
3215                         os << t.cs().substr(4) << '\n';
3216                         parse_text_in_inset(p, os, FLAG_ITEM, false, context);
3217                         end_inset(os);
3218                         if (t.cs() == "textsubscript")
3219                                 preamble.registerAutomaticallyLoadedPackage("subscript");
3220                 }
3221
3222                 else if ((where = is_known(t.cs(), known_quotes))) {
3223                         context.check_layout(os);
3224                         begin_inset(os, "Quotes ");
3225                         os << known_coded_quotes[where - known_quotes];
3226                         end_inset(os);
3227                         // LyX adds {} after the quote, so we have to eat
3228                         // spaces here if there are any before a possible
3229                         // {} pair.
3230                         eat_whitespace(p, os, context, false);
3231                         skip_braces(p);
3232                 }
3233
3234                 else if ((where = is_known(t.cs(), known_sizes)) &&
3235                          context.new_layout_allowed) {
3236                         context.check_layout(os);
3237                         TeXFont const oldFont = context.font;
3238                         context.font.size = known_coded_sizes[where - known_sizes];
3239                         output_font_change(os, oldFont, context.font);
3240                         eat_whitespace(p, os, context, false);
3241                 }
3242
3243                 else if ((where = is_known(t.cs(), known_font_families)) &&
3244                          context.new_layout_allowed) {
3245                         context.check_layout(os);
3246                         TeXFont const oldFont = context.font;
3247                         context.font.family =
3248                                 known_coded_font_families[where - known_font_families];
3249                         output_font_change(os, oldFont, context.font);
3250                         eat_whitespace(p, os, context, false);
3251                 }
3252
3253                 else if ((where = is_known(t.cs(), known_font_series)) &&
3254                          context.new_layout_allowed) {
3255                         context.check_layout(os);
3256                         TeXFont const oldFont = context.font;
3257                         context.font.series =
3258                                 known_coded_font_series[where - known_font_series];
3259                         output_font_change(os, oldFont, context.font);
3260                         eat_whitespace(p, os, context, false);
3261                 }
3262
3263                 else if ((where = is_known(t.cs(), known_font_shapes)) &&
3264                          context.new_layout_allowed) {
3265                         context.check_layout(os);
3266                         TeXFont const oldFont = context.font;
3267                         context.font.shape =
3268                                 known_coded_font_shapes[where - known_font_shapes];
3269                         output_font_change(os, oldFont, context.font);
3270                         eat_whitespace(p, os, context, false);
3271                 }
3272                 else if ((where = is_known(t.cs(), known_old_font_families)) &&
3273                          context.new_layout_allowed) {
3274                         context.check_layout(os);
3275                         TeXFont const oldFont = context.font;
3276                         context.font.init();
3277                         context.font.size = oldFont.size;
3278                         context.font.family =
3279                                 known_coded_font_families[where - known_old_font_families];
3280                         output_font_change(os, oldFont, context.font);
3281                         eat_whitespace(p, os, context, false);
3282                 }
3283
3284                 else if ((where = is_known(t.cs(), known_old_font_series)) &&
3285                          context.new_layout_allowed) {
3286                         context.check_layout(os);
3287                         TeXFont const oldFont = context.font;
3288                         context.font.init();
3289                         context.font.size = oldFont.size;
3290                         context.font.series =
3291                                 known_coded_font_series[where - known_old_font_series];
3292                         output_font_change(os, oldFont, context.font);
3293                         eat_whitespace(p, os, context, false);
3294                 }
3295
3296                 else if ((where = is_known(t.cs(), known_old_font_shapes)) &&
3297                          context.new_layout_allowed) {
3298                         context.check_layout(os);
3299                         TeXFont const oldFont = context.font;
3300                         context.font.init();
3301                         context.font.size = oldFont.size;
3302                         context.font.shape =
3303                                 known_coded_font_shapes[where - known_old_font_shapes];
3304                         output_font_change(os, oldFont, context.font);
3305                         eat_whitespace(p, os, context, false);
3306                 }
3307
3308                 else if (t.cs() == "selectlanguage") {
3309                         context.check_layout(os);
3310                         // save the language for the case that a
3311                         // \foreignlanguage is used
3312
3313                         context.font.language = babel2lyx(p.verbatim_item());
3314                         os << "\n\\lang " << context.font.language << "\n";
3315                 }
3316
3317                 else if (t.cs() == "foreignlanguage") {
3318                         string const lang = babel2lyx(p.verbatim_item());
3319                         parse_text_attributes(p, os, FLAG_ITEM, outer,
3320                                               context, "\\lang",
3321                                               context.font.language, lang);
3322                 }
3323
3324                 else if (t.cs() == "inputencoding") {
3325                         // nothing to write here
3326                         string const enc = subst(p.verbatim_item(), "\n", " ");
3327                         p.setEncoding(enc);
3328                 }
3329
3330                 else if ((where = is_known(t.cs(), known_special_chars))) {
3331                         context.check_layout(os);
3332                         os << "\\SpecialChar \\"
3333                            << known_coded_special_chars[where - known_special_chars]
3334                            << '\n';
3335                         skip_spaces_braces(p);
3336                 }
3337
3338                 else if (t.cs() == "nobreakdash" && p.next_token().asInput() == "-") {
3339                         context.check_layout(os);
3340                         os << "\\SpecialChar \\nobreakdash-\n";
3341                         p.get_token();
3342                 }
3343
3344                 else if (t.cs() == "textquotedbl") {
3345                         context.check_layout(os);
3346                         os << "\"";
3347                         skip_braces(p);
3348                 }
3349
3350                 else if (t.cs() == "@" && p.next_token().asInput() == ".") {
3351                         context.check_layout(os);
3352                         os << "\\SpecialChar \\@.\n";
3353                         p.get_token();
3354                 }
3355
3356                 else if (t.cs() == "-") {
3357                         context.check_layout(os);
3358                         os << "\\SpecialChar \\-\n";
3359                 }
3360
3361                 else if (t.cs() == "textasciitilde") {
3362                         context.check_layout(os);
3363                         os << '~';
3364                         skip_spaces_braces(p);
3365                 }
3366
3367                 else if (t.cs() == "textasciicircum") {
3368                         context.check_layout(os);
3369                         os << '^';
3370                         skip_spaces_braces(p);
3371                 }
3372
3373                 else if (t.cs() == "textbackslash") {
3374                         context.check_layout(os);
3375                         os << "\n\\backslash\n";
3376                         skip_spaces_braces(p);
3377                 }
3378
3379                 else if (t.cs() == "_" || t.cs() == "&" || t.cs() == "#"
3380                             || t.cs() == "$" || t.cs() == "{" || t.cs() == "}"
3381                             || t.cs() == "%") {
3382                         context.check_layout(os);
3383                         os << t.cs();
3384                 }
3385
3386                 else if (t.cs() == "char") {
3387                         context.check_layout(os);
3388                         if (p.next_token().character() == '`') {
3389                                 p.get_token();
3390                                 if (p.next_token().cs() == "\"") {
3391                                         p.get_token();
3392                                         os << '"';
3393                                         skip_braces(p);
3394                                 } else {
3395                                         handle_ert(os, "\\char`", context);
3396                                 }
3397                         } else {
3398                                 handle_ert(os, "\\char", context);
3399                         }
3400                 }
3401
3402                 else if (t.cs() == "verb") {
3403                         context.check_layout(os);
3404                         char const delimiter = p.next_token().character();
3405                         string const arg = p.getArg(delimiter, delimiter);
3406                         ostringstream oss;
3407                         oss << "\\verb" << delimiter << arg << delimiter;
3408                         handle_ert(os, oss.str(), context);
3409                 }
3410
3411                 // Problem: \= creates a tabstop inside the tabbing environment
3412                 // and else an accent. In the latter case we really would want
3413                 // \={o} instead of \= o.
3414                 else if (t.cs() == "=" && (flags & FLAG_TABBING))
3415                         handle_ert(os, t.asInput(), context);
3416
3417                 // accents (see Table 6 in Comprehensive LaTeX Symbol List)
3418                 else if (t.cs().size() == 1
3419                          && contains("\"'.=^`bcdHkrtuv~", t.cs())) {
3420                         context.check_layout(os);
3421                         // try to see whether the string is in unicodesymbols
3422                         docstring rem;
3423                         string command = t.asInput() + "{"
3424                                 + trimSpaceAndEol(p.verbatim_item())
3425                                 + "}";
3426                         docstring s = encodings.fromLaTeXCommand(from_utf8(command), rem);
3427                         if (!s.empty()) {
3428                                 if (!rem.empty())
3429                                         cerr << "When parsing " << command
3430                                              << ", result is " << to_utf8(s)
3431                                              << "+" << to_utf8(rem) << endl;
3432                                 os << to_utf8(s);
3433                         } else
3434                                 // we did not find a non-ert version
3435                                 handle_ert(os, command, context);
3436                 }
3437
3438                 else if (t.cs() == "\\") {
3439                         context.check_layout(os);
3440                         if (p.hasOpt())
3441                                 handle_ert(os, "\\\\" + p.getOpt(), context);
3442                         else if (p.next_token().asInput() == "*") {
3443                                 p.get_token();
3444                                 // getOpt() eats the following space if there
3445                                 // is no optional argument, but that is OK
3446                                 // here since it has no effect in the output.
3447                                 handle_ert(os, "\\\\*" + p.getOpt(), context);
3448                         }
3449                         else {
3450                                 begin_inset(os, "Newline newline");
3451                                 end_inset(os);
3452                         }
3453                 }
3454
3455                 else if (t.cs() == "newline" ||
3456                          (t.cs() == "linebreak" && !p.hasOpt())) {
3457                         context.check_layout(os);
3458                         begin_inset(os, "Newline ");
3459                         os << t.cs();
3460                         end_inset(os);
3461                         skip_spaces_braces(p);
3462                 }
3463
3464                 else if (t.cs() == "input" || t.cs() == "include"
3465                          || t.cs() == "verbatiminput") {
3466                         string name = t.cs();
3467                         if (t.cs() == "verbatiminput"
3468                             && p.next_token().asInput() == "*")
3469                                 name += p.get_token().asInput();
3470                         context.check_layout(os);
3471                         string filename(normalize_filename(p.getArg('{', '}')));
3472                         string const path = getMasterFilePath();
3473                         // We want to preserve relative / absolute filenames,
3474                         // therefore path is only used for testing
3475                         if ((t.cs() == "include" || t.cs() == "input") &&
3476                             !makeAbsPath(filename, path).exists()) {
3477                                 // The file extension is probably missing.
3478                                 // Now try to find it out.
3479                                 string const tex_name =
3480                                         find_file(filename, path,
3481                                                   known_tex_extensions);
3482                                 if (!tex_name.empty())
3483                                         filename = tex_name;
3484                         }
3485                         bool external = false;
3486                         string outname;
3487                         if (makeAbsPath(filename, path).exists()) {
3488                                 string const abstexname =
3489                                         makeAbsPath(filename, path).absFileName();
3490                                 string const abslyxname =
3491                                         changeExtension(abstexname, ".lyx");
3492                                 string const absfigname =
3493                                         changeExtension(abstexname, ".fig");
3494                                 fix_relative_filename(filename);
3495                                 string const lyxname =
3496                                         changeExtension(filename, ".lyx");
3497                                 bool xfig = false;
3498                                 external = FileName(absfigname).exists();
3499                                 if (t.cs() == "input") {
3500                                         string const ext = getExtension(abstexname);
3501
3502                                         // Combined PS/LaTeX:
3503                                         // x.eps, x.pstex_t (old xfig)
3504                                         // x.pstex, x.pstex_t (new xfig, e.g. 3.2.5)
3505                                         FileName const absepsname(
3506                                                 changeExtension(abstexname, ".eps"));
3507                                         FileName const abspstexname(
3508                                                 changeExtension(abstexname, ".pstex"));
3509                                         bool const xfigeps =
3510                                                 (absepsname.exists() ||
3511                                                  abspstexname.exists()) &&
3512                                                 ext == "pstex_t";
3513
3514                                         // Combined PDF/LaTeX:
3515                                         // x.pdf, x.pdftex_t (old xfig)
3516                                         // x.pdf, x.pdf_t (new xfig, e.g. 3.2.5)
3517                                         FileName const abspdfname(
3518                                                 changeExtension(abstexname, ".pdf"));
3519                                         bool const xfigpdf =
3520                                                 abspdfname.exists() &&
3521                                                 (ext == "pdftex_t" || ext == "pdf_t");
3522                                         if (xfigpdf)
3523                                                 pdflatex = true;
3524
3525                                         // Combined PS/PDF/LaTeX:
3526                                         // x_pspdftex.eps, x_pspdftex.pdf, x.pspdftex
3527                                         string const absbase2(
3528                                                 removeExtension(abstexname) + "_pspdftex");
3529                                         FileName const abseps2name(
3530                                                 addExtension(absbase2, ".eps"));
3531                                         FileName const abspdf2name(
3532                                                 addExtension(absbase2, ".pdf"));
3533                                         bool const xfigboth =
3534                                                 abspdf2name.exists() &&
3535                                                 abseps2name.exists() && ext == "pspdftex";
3536
3537                                         xfig = xfigpdf || xfigeps || xfigboth;
3538                                         external = external && xfig;
3539                                 }
3540                                 if (external) {
3541                                         outname = changeExtension(filename, ".fig");
3542                                 } else if (xfig) {
3543                                         // Don't try to convert, the result
3544                                         // would be full of ERT.
3545                                         outname = filename;
3546                                 } else if (t.cs() != "verbatiminput" &&
3547                                     tex2lyx(abstexname, FileName(abslyxname),
3548                                             p.getEncoding())) {
3549                                         outname = lyxname;
3550                                 } else {
3551                                         outname = filename;
3552                                 }
3553                         } else {
3554                                 cerr << "Warning: Could not find included file '"
3555                                      << filename << "'." << endl;
3556                                 outname = filename;
3557                         }
3558                         if (external) {
3559                                 begin_inset(os, "External\n");
3560                                 os << "\ttemplate XFig\n"
3561                                    << "\tfilename " << outname << '\n';
3562                         } else {
3563                                 begin_command_inset(os, "include", name);
3564                                 os << "preview false\n"
3565                                       "filename \"" << outname << "\"\n";
3566                         }
3567                         end_inset(os);
3568                 }
3569
3570                 else if (t.cs() == "bibliographystyle") {
3571                         // store new bibliographystyle
3572                         bibliographystyle = p.verbatim_item();
3573                         // If any other command than \bibliography and
3574                         // \nocite{*} follows, we need to output the style
3575                         // (because it might be used by that command).
3576                         // Otherwise, it will automatically be output by LyX.
3577                         p.pushPosition();
3578                         bool output = true;
3579                         for (Token t2 = p.get_token(); p.good(); t2 = p.get_token()) {
3580                                 if (t2.cat() == catBegin)
3581                                         break;
3582                                 if (t2.cat() != catEscape)
3583                                         continue;
3584                                 if (t2.cs() == "nocite") {
3585                                         if (p.getArg('{', '}') == "*")
3586                                                 continue;
3587                                 } else if (t2.cs() == "bibliography")
3588                                         output = false;
3589                                 break;
3590                         }
3591                         p.popPosition();
3592                         if (output) {
3593                                 handle_ert(os,
3594                                         "\\bibliographystyle{" + bibliographystyle + '}',
3595                                         context);
3596                         }
3597                 }
3598
3599                 else if (t.cs() == "bibliography") {
3600                         context.check_layout(os);
3601                         begin_command_inset(os, "bibtex", "bibtex");
3602                         if (!btprint.empty()) {
3603                                 os << "btprint " << '"' << "btPrintAll" << '"' << "\n";
3604                                 // clear the string because the next BibTeX inset can be without the
3605                                 // \nocite{*} option
3606                                 btprint.clear();
3607                         }
3608                         os << "bibfiles " << '"' << p.verbatim_item() << '"' << "\n";
3609                         // Do we have a bibliographystyle set?
3610                         if (!bibliographystyle.empty())
3611                                 os << "options " << '"' << bibliographystyle << '"' << "\n";
3612                         end_inset(os);
3613                 }
3614
3615                 else if (t.cs() == "parbox") {
3616                         // Test whether this is an outer box of a shaded box
3617                         p.pushPosition();
3618                         // swallow arguments
3619                         while (p.hasOpt()) {
3620                                 p.getArg('[', ']');
3621                                 p.skip_spaces(true);
3622                         }
3623                         p.getArg('{', '}');
3624                         p.skip_spaces(true);
3625                         // eat the '{'
3626                         if (p.next_token().cat() == catBegin)
3627                                 p.get_token();
3628                         p.skip_spaces(true);
3629                         Token to = p.get_token();
3630                         bool shaded = false;
3631                         if (to.asInput() == "\\begin") {
3632                                 p.skip_spaces(true);
3633                                 if (p.getArg('{', '}') == "shaded")
3634                                         shaded = true;
3635                         }
3636                         p.popPosition();
3637                         if (shaded) {
3638                                 parse_outer_box(p, os, FLAG_ITEM, outer,
3639                                                 context, "parbox", "shaded");
3640                         } else
3641                                 parse_box(p, os, 0, FLAG_ITEM, outer, context,
3642                                           "", "", t.cs());
3643                 }
3644
3645                 else if (t.cs() == "ovalbox" || t.cs() == "Ovalbox" ||
3646                          t.cs() == "shadowbox" || t.cs() == "doublebox")
3647                         parse_outer_box(p, os, FLAG_ITEM, outer, context, t.cs(), "");
3648
3649                 else if (t.cs() == "framebox") {
3650                         if (p.next_token().character() == '(') {
3651                                 //the syntax is: \framebox(x,y)[position]{content}
3652                                 string arg = t.asInput();
3653                                 arg += p.getFullParentheseArg();
3654                                 arg += p.getFullOpt();
3655                                 eat_whitespace(p, os, context, false);
3656                                 handle_ert(os, arg + '{', context);
3657                                 eat_whitespace(p, os, context, false);
3658                                 parse_text(p, os, FLAG_ITEM, outer, context);
3659                                 handle_ert(os, "}", context);
3660                         } else {
3661                                 string special = p.getFullOpt();
3662                                 special += p.getOpt();
3663                                 parse_outer_box(p, os, FLAG_ITEM, outer,
3664                                                 context, t.cs(), special);
3665                         }
3666                 }
3667
3668                 //\makebox() is part of the picture environment and different from \makebox{}
3669                 //\makebox{} will be parsed by parse_box
3670                 else if (t.cs() == "makebox") {
3671                         if (p.next_token().character() == '(') {
3672                                 //the syntax is: \makebox(x,y)[position]{content}
3673                                 string arg = t.asInput();
3674                                 arg += p.getFullParentheseArg();
3675                                 arg += p.getFullOpt();
3676                                 eat_whitespace(p, os, context, false);
3677                                 handle_ert(os, arg + '{', context);
3678                                 eat_whitespace(p, os, context, false);
3679                                 parse_text(p, os, FLAG_ITEM, outer, context);
3680                                 handle_ert(os, "}", context);
3681                         } else
3682                                 //the syntax is: \makebox[width][position]{content}
3683                                 parse_box(p, os, 0, FLAG_ITEM, outer, context,
3684                                           "", "", t.cs());
3685                 }
3686
3687                 else if (t.cs() == "smallskip" ||
3688                          t.cs() == "medskip" ||
3689                          t.cs() == "bigskip" ||
3690                          t.cs() == "vfill") {
3691                         context.check_layout(os);
3692                         begin_inset(os, "VSpace ");
3693                         os << t.cs();
3694                         end_inset(os);
3695                         skip_spaces_braces(p);
3696                 }
3697
3698                 else if ((where = is_known(t.cs(), known_spaces))) {
3699                         context.check_layout(os);
3700                         begin_inset(os, "space ");
3701                         os << '\\' << known_coded_spaces[where - known_spaces]
3702                            << '\n';
3703                         end_inset(os);
3704                         // LaTeX swallows whitespace after all spaces except
3705                         // "\\,". We have to do that here, too, because LyX
3706                         // adds "{}" which would make the spaces significant.
3707                         if (t.cs() !=  ",")
3708                                 eat_whitespace(p, os, context, false);
3709                         // LyX adds "{}" after all spaces except "\\ " and
3710                         // "\\,", so we have to remove "{}".
3711                         // "\\,{}" is equivalent to "\\," in LaTeX, so we
3712                         // remove the braces after "\\,", too.
3713                         if (t.cs() != " ")
3714                                 skip_braces(p);
3715                 }
3716
3717                 else if (t.cs() == "newpage" ||
3718                          (t.cs() == "pagebreak" && !p.hasOpt()) ||
3719                          t.cs() == "clearpage" ||
3720                          t.cs() == "cleardoublepage") {
3721                         context.check_layout(os);
3722                         begin_inset(os, "Newpage ");
3723                         os << t.cs();
3724                         end_inset(os);
3725                         skip_spaces_braces(p);
3726                 }
3727
3728                 else if (t.cs() == "DeclareRobustCommand" ||
3729                          t.cs() == "DeclareRobustCommandx" ||
3730                          t.cs() == "newcommand" ||
3731                          t.cs() == "newcommandx" ||
3732                          t.cs() == "providecommand" ||
3733                          t.cs() == "providecommandx" ||
3734                          t.cs() == "renewcommand" ||
3735                          t.cs() == "renewcommandx") {
3736                         // DeclareRobustCommand, DeclareRobustCommandx,
3737                         // providecommand and providecommandx could be handled
3738                         // by parse_command(), but we need to call
3739                         // add_known_command() here.
3740                         string name = t.asInput();
3741                         if (p.next_token().asInput() == "*") {
3742                                 // Starred form. Eat '*'
3743                                 p.get_token();
3744                                 name += '*';
3745                         }
3746                         string const command = p.verbatim_item();
3747                         string const opt1 = p.getFullOpt();
3748                         string const opt2 = p.getFullOpt();
3749                         add_known_command(command, opt1, !opt2.empty());
3750                         string const ert = name + '{' + command + '}' +
3751                                            opt1 + opt2 +
3752                                            '{' + p.verbatim_item() + '}';
3753
3754                         if (t.cs() == "DeclareRobustCommand" ||
3755                             t.cs() == "DeclareRobustCommandx" ||
3756                             t.cs() == "providecommand" ||
3757                             t.cs() == "providecommandx" ||
3758                             name[name.length()-1] == '*')
3759                                 handle_ert(os, ert, context);
3760                         else {
3761                                 context.check_layout(os);
3762                                 begin_inset(os, "FormulaMacro");
3763                                 os << "\n" << ert;
3764                                 end_inset(os);
3765                         }
3766                 }
3767
3768                 else if (t.cs() == "let" && p.next_token().asInput() != "*") {
3769                         // let could be handled by parse_command(),
3770                         // but we need to call add_known_command() here.
3771                         string ert = t.asInput();
3772                         string name;
3773                         p.skip_spaces();
3774                         if (p.next_token().cat() == catBegin) {
3775                                 name = p.verbatim_item();
3776                                 ert += '{' + name + '}';
3777                         } else {
3778                                 name = p.verbatim_item();
3779                                 ert += name;
3780                         }
3781                         string command;
3782                         p.skip_spaces();
3783                         if (p.next_token().cat() == catBegin) {
3784                                 command = p.verbatim_item();
3785                                 ert += '{' + command + '}';
3786                         } else {
3787                                 command = p.verbatim_item();
3788                                 ert += command;
3789                         }
3790                         // If command is known, make name known too, to parse
3791                         // its arguments correctly. For this reason we also
3792                         // have commands in syntax.default that are hardcoded.
3793                         CommandMap::iterator it = known_commands.find(command);
3794                         if (it != known_commands.end())
3795                                 known_commands[t.asInput()] = it->second;
3796                         handle_ert(os, ert, context);
3797                 }
3798
3799                 else if (t.cs() == "hspace" || t.cs() == "vspace") {
3800                         bool starred = false;
3801                         if (p.next_token().asInput() == "*") {
3802                                 p.get_token();
3803                                 starred = true;
3804                         }
3805                         string name = t.asInput();
3806                         string const length = p.verbatim_item();
3807                         string unit;
3808                         string valstring;
3809                         bool valid = splitLatexLength(length, valstring, unit);
3810                         bool known_hspace = false;
3811                         bool known_vspace = false;
3812                         bool known_unit = false;
3813                         double value;
3814                         if (valid) {
3815                                 istringstream iss(valstring);
3816                                 iss >> value;
3817                                 if (value == 1.0) {
3818                                         if (t.cs()[0] == 'h') {
3819                                                 if (unit == "\\fill") {
3820                                                         if (!starred) {
3821                                                                 unit = "";
3822                                                                 name = "\\hfill";
3823                                                         }
3824                                                         known_hspace = true;
3825                                                 }
3826                                         } else {
3827                                                 if (unit == "\\smallskipamount") {
3828                                                         unit = "smallskip";
3829                                                         known_vspace = true;
3830                                                 } else if (unit == "\\medskipamount") {
3831                                                         unit = "medskip";
3832                                                         known_vspace = true;
3833                                                 } else if (unit == "\\bigskipamount") {
3834                                                         unit = "bigskip";
3835                                                         known_vspace = true;
3836                                                 } else if (unit == "\\fill") {
3837                                                         unit = "vfill";
3838                                                         known_vspace = true;
3839                                                 }
3840                                         }
3841                                 }
3842                                 if (!known_hspace && !known_vspace) {
3843                                         switch (unitFromString(unit)) {
3844                                         case Length::SP:
3845                                         case Length::PT:
3846                                         case Length::BP:
3847                                         case Length::DD:
3848                                         case Length::MM:
3849                                         case Length::PC:
3850                                         case Length::CC:
3851                                         case Length::CM:
3852                                         case Length::IN:
3853                                         case Length::EX:
3854                                         case Length::EM:
3855                                         case Length::MU:
3856                                                 known_unit = true;
3857                                                 break;
3858                                         default:
3859                                                 break;
3860                                         }
3861                                 }
3862                         }
3863
3864                         if (t.cs()[0] == 'h' && (known_unit || known_hspace)) {
3865                                 // Literal horizontal length or known variable
3866                                 context.check_layout(os);
3867                                 begin_inset(os, "space ");
3868                                 os << name;
3869                                 if (starred)
3870                                         os << '*';
3871                                 os << '{';
3872                                 if (known_hspace)
3873                                         os << unit;
3874                                 os << "}";
3875                                 if (known_unit && !known_hspace)
3876                                         os << "\n\\length "
3877                                            << translate_len(length);
3878                                 end_inset(os);
3879                         } else if (known_unit || known_vspace) {
3880                                 // Literal vertical length or known variable
3881                                 context.check_layout(os);
3882                                 begin_inset(os, "VSpace ");
3883                                 if (known_unit)
3884                                         os << value;
3885                                 os << unit;
3886                                 if (starred)
3887                                         os << '*';
3888                                 end_inset(os);
3889                         } else {
3890                                 // LyX can't handle other length variables in Inset VSpace/space
3891                                 if (starred)
3892                                         name += '*';
3893                                 if (valid) {
3894                                         if (value == 1.0)
3895                                                 handle_ert(os, name + '{' + unit + '}', context);
3896                                         else if (value == -1.0)
3897                                                 handle_ert(os, name + "{-" + unit + '}', context);
3898                                         else
3899                                                 handle_ert(os, name + '{' + valstring + unit + '}', context);
3900                                 } else
3901                                         handle_ert(os, name + '{' + length + '}', context);
3902                         }
3903                 }
3904
3905                 // The single '=' is meant here.
3906                 else if ((newinsetlayout = findInsetLayout(context.textclass, t.cs(), true))) {
3907                         p.skip_spaces();
3908                         context.check_layout(os);
3909                         begin_inset(os, "Flex ");
3910                         os << to_utf8(newinsetlayout->name()) << '\n'
3911                            << "status collapsed\n";
3912                         parse_text_in_inset(p, os, FLAG_ITEM, false, context, newinsetlayout);
3913                         end_inset(os);
3914                 }
3915
3916                 else if (t.cs() == "loadgame") {
3917                         p.skip_spaces();
3918                         string name = normalize_filename(p.verbatim_item());
3919                         string const path = getMasterFilePath();
3920                         // We want to preserve relative / absolute filenames,
3921                         // therefore path is only used for testing
3922                         if (!makeAbsPath(name, path).exists()) {
3923                                 // The file extension is probably missing.
3924                                 // Now try to find it out.
3925                                 char const * const lyxskak_format[] = {"fen", 0};
3926                                 string const lyxskak_name =
3927                                         find_file(name, path, lyxskak_format);
3928                                 if (!lyxskak_name.empty())
3929                                         name = lyxskak_name;
3930                         }
3931                         if (makeAbsPath(name, path).exists())
3932                                 fix_relative_filename(name);
3933                         else
3934                                 cerr << "Warning: Could not find file '"
3935                                      << name << "'." << endl;
3936                         context.check_layout(os);
3937                         begin_inset(os, "External\n\ttemplate ");
3938                         os << "ChessDiagram\n\tfilename "
3939                            << name << "\n";
3940                         end_inset(os);
3941                         context.check_layout(os);
3942                         // after a \loadgame follows a \showboard
3943                         if (p.get_token().asInput() == "showboard")
3944                                 p.get_token();
3945                 }
3946
3947                 else {
3948                         // try to see whether the string is in unicodesymbols
3949                         // Only use text mode commands, since we are in text mode here,
3950                         // and math commands may be invalid (bug 6797)
3951                         docstring rem;
3952                         docstring s = encodings.fromLaTeXCommand(from_utf8(t.asInput()),
3953                                                                  rem, Encodings::TEXT_CMD);
3954                         if (!s.empty()) {
3955                                 if (!rem.empty())
3956                                         cerr << "When parsing " << t.cs()
3957                                              << ", result is " << to_utf8(s)
3958                                              << "+" << to_utf8(rem) << endl;
3959                                 context.check_layout(os);
3960                                 os << to_utf8(s);
3961                                 skip_spaces_braces(p);
3962                         }
3963                         //cerr << "#: " << t << " mode: " << mode << endl;
3964                         // heuristic: read up to next non-nested space
3965                         /*
3966                         string s = t.asInput();
3967                         string z = p.verbatim_item();
3968                         while (p.good() && z != " " && z.size()) {
3969                                 //cerr << "read: " << z << endl;
3970                                 s += z;
3971                                 z = p.verbatim_item();
3972                         }
3973                         cerr << "found ERT: " << s << endl;
3974                         handle_ert(os, s + ' ', context);
3975                         */
3976                         else {
3977                                 string name = t.asInput();
3978                                 if (p.next_token().asInput() == "*") {
3979                                         // Starred commands like \vspace*{}
3980                                         p.get_token();  // Eat '*'
3981                                         name += '*';
3982                                 }
3983                                 if (!parse_command(name, p, os, outer, context))
3984                                         handle_ert(os, name, context);
3985                         }
3986                 }
3987
3988                 if (flags & FLAG_LEAVE) {
3989                         flags &= ~FLAG_LEAVE;
3990                         break;
3991                 }
3992         }
3993 }
3994
3995 // }])
3996
3997
3998 } // namespace lyx