src/tex2lyx/text.C

   1 /**
   2  * \file tex2lyx/text.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author André Pönitz
   7  * \author Jean-Marc Lasgouttes
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 // {[(
  13
  14 #include <config.h>
  15
  16 #include "tex2lyx.h"
  17 #include "context.h"
  18 #include "FloatList.h"
  19 #include "lengthcommon.h"
  20 #include "support/lstrings.h"
  21 #include "support/tostr.h"
  22 #include "support/filetools.h"
  23
  24 #include <iostream>
  25 #include <map>
  26 #include <sstream>
  27 #include <vector>
  28
  29 using lyx::support::rtrim;
  30 using lyx::support::suffixIs;
  31 using lyx::support::contains;
  32 using lyx::support::subst;
  33
  34 using std::cerr;
  35 using std::endl;
  36
  37 using std::map;
  38 using std::ostream;
  39 using std::ostringstream;
  40 using std::istringstream;
  41 using std::string;
  42 using std::vector;
  43
  44
  45 /// thin wrapper around parse_text using a string
  46 string parse_text(Parser & p, unsigned flags, const bool outer,
  47                   Context & context)
  48 {
  49         ostringstream os;
  50         parse_text(p, os, flags, outer, context);
  51         return os.str();
  52 }
  53
  54
  55 void parse_text_in_inset(Parser & p, ostream & os, unsigned flags, bool outer,
  56                 Context & context)
  57 {
  58         Context newcontext(true, context.textclass);
  59         newcontext.font = context.font;
  60         parse_text(p, os, flags, outer, newcontext);
  61         newcontext.check_end_layout(os);
  62 }
  63
  64
  65 /// parses a paragraph snippet, useful for example for \emph{...}
  66 void parse_text_snippet(Parser & p, ostream & os, unsigned flags, bool outer,
  67                 Context & context)
  68 {
  69         Context newcontext(false, context.textclass);
  70         newcontext.font = context.font;
  71         parse_text(p, os, flags, outer, newcontext);
  72         // should not be needed
  73         newcontext.check_end_layout(os);
  74 }
  75
  76
  77 namespace {
  78
  79 char const * const known_latex_commands[] = { "ref", "cite", "label", "index",
  80 "printindex", "pageref", "url", "vref", "vpageref", "prettyref", "eqref", 0 };
  81
  82 /// LaTeX names for quotes
  83 char const * const known_quotes[] = { "glqq", "grqq", "quotedblbase",
  84 "textquotedblleft", "quotesinglbase", "guilsinglleft", "guilsinglright", 0};
  85
  86 /// the same as known_quotes with .lyx names
  87 char const * const known_coded_quotes[] = { "gld", "grd", "gld",
  88 "grd", "gls", "fls", "frd", 0};
  89
  90 /// LaTeX names for font sizes
  91 char const * const known_sizes[] = { "tiny", "scriptsize", "footnotesize",
  92 "small", "normalsize", "large", "Large", "LARGE", "huge", "Huge", 0};
  93
  94 /// the same as known_sizes with .lyx names
  95 char const * const known_coded_sizes[] = { "tiny", "scriptsize", "footnotesize",
  96 "small", "normal", "large", "larger", "largest",  "huge", "giant", 0};
  97
  98 /// LaTeX 2.09 names for font families
  99 char const * const known_old_font_families[] = { "rm", "sf", "tt", 0};
 100
 101 /// LaTeX names for font families
 102 char const * const known_font_families[] = { "rmfamily", "sffamily",
 103 "ttfamily", 0};
 104
 105 /// the same as known_old_font_families and known_font_families with .lyx names
 106 char const * const known_coded_font_families[] = { "roman", "sans",
 107 "typewriter", 0};
 108
 109 /// LaTeX 2.09 names for font series
 110 char const * const known_old_font_series[] = { "bf", 0};
 111
 112 /// LaTeX names for font series
 113 char const * const known_font_series[] = { "bfseries", "mdseries", 0};
 114
 115 /// the same as known_old_font_series and known_font_series with .lyx names
 116 char const * const known_coded_font_series[] = { "bold", "medium", 0};
 117
 118 /// LaTeX 2.09 names for font shapes
 119 char const * const known_old_font_shapes[] = { "it", "sl", "sc", 0};
 120
 121 /// LaTeX names for font shapes
 122 char const * const known_font_shapes[] = { "itshape", "slshape", "scshape",
 123 "upshape", 0};
 124
 125 /// the same as known_old_font_shapes and known_font_shapes with .lyx names
 126 char const * const known_coded_font_shapes[] = { "italic", "slanted",
 127 "smallcaps", "up", 0};
 128
 129
 130 /// splits "x=z, y=b" into a map
 131 map<string, string> split_map(string const & s)
 132 {
 133         map<string, string> res;
 134         vector<string> v;
 135         split(s, v);
 136         for (size_t i = 0; i < v.size(); ++i) {
 137                 size_t const pos   = v[i].find('=');
 138                 string const index = v[i].substr(0, pos);
 139                 string const value = v[i].substr(pos + 1, string::npos);
 140                 res[trim(index)] = trim(value);
 141         }
 142         return res;
 143 }
 144
 145
 146 /*!
 147  * Split a LaTeX length into value and unit.
 148  * The latter can be a real unit like "pt", or a latex length variable
 149  * like "\textwidth". The unit may contain additional stuff like glue
 150  * lengths, but we don't care, because such lengths are ERT anyway.
 151  * \return true if \param value and \param unit are valid.
 152  */
 153 bool splitLatexLength(string const & len, string & value, string & unit)
 154 {
 155         if (len.empty())
 156                 return false;
 157         const string::size_type i = len.find_first_not_of(" -+0123456789.,");
 158         //'4,5' is a valid LaTeX length number. Change it to '4.5'
 159         string const length = subst(len, ',', '.');
 160         if (i == string::npos)
 161                 return false;
 162         if (i == 0) {
 163                 if (len[0] == '\\') {
 164                         // We had something like \textwidth without a factor
 165                         value = "1.0";
 166                 } else {
 167                         return false;
 168                 }
 169         } else {
 170                 value = trim(string(length, 0, i));
 171         }
 172         if (value == "-")
 173                 value = "-1.0";
 174         // 'cM' is a valid LaTeX length unit. Change it to 'cm'
 175         if (contains(len, '\\'))
 176                 unit = trim(string(len, i));
 177         else
 178                 unit = lyx::support::lowercase(trim(string(len, i)));
 179         return true;
 180 }
 181
 182
 183 /// A simple function to translate a latex length to something lyx can
 184 /// understand. Not perfect, but rather best-effort.
 185 bool translate_len(string const & length, string & valstring, string & unit)
 186 {
 187         if (!splitLatexLength(length, valstring, unit))
 188                 return false;
 189         // LyX uses percent values
 190         double value;
 191         istringstream iss(valstring);
 192         iss >> value;
 193         value *= 100;
 194         ostringstream oss;
 195         oss << value;
 196         string const percentval = oss.str();
 197         // a normal length
 198         if (unit.empty() || unit[0] != '\\')
 199                 return true;
 200         string::size_type const i = unit.find(' ');
 201         string const endlen = (i == string::npos) ? string() : string(unit, i);
 202         if (unit == "\\textwidth") {
 203                 valstring = percentval;
 204                 unit = "text%" + endlen;
 205         } else if (unit == "\\columnwidth") {
 206                 valstring = percentval;
 207                 unit = "col%" + endlen;
 208         } else if (unit == "\\paperwidth") {
 209                 valstring = percentval;
 210                 unit = "page%" + endlen;
 211         } else if (unit == "\\linewidth") {
 212                 valstring = percentval;
 213                 unit = "line%" + endlen;
 214         } else if (unit == "\\paperheight") {
 215                 valstring = percentval;
 216                 unit = "pheight%" + endlen;
 217         } else if (unit == "\\textheight") {
 218                 valstring = percentval;
 219                 unit = "theight%" + endlen;
 220         }
 221         return true;
 222 }
 223
 224
 225 string translate_len(string const & length)
 226 {
 227         string unit;
 228         string value;
 229         if (translate_len(length, value, unit))
 230                 return value + unit;
 231         // If the input is invalid, return what we have.
 232         return length;
 233 }
 234
 235
 236 /*!
 237  * Translates a LaTeX length into \param value, \param unit and
 238  * \param special parts suitable for a box inset.
 239  * The difference from translate_len() is that a box inset knows about
 240  * some special "units" that are stored in \param special.
 241  */
 242 void translate_box_len(string const & length, string & value, string & unit, string & special)
 243 {
 244         if (translate_len(length, value, unit)) {
 245                 if (unit == "\\height" || unit == "\\depth" ||
 246                     unit == "\\totalheight" || unit == "\\width") {
 247                         special = unit.substr(1);
 248                         // The unit is not used, but LyX requires a dummy setting
 249                         unit = "in";
 250                 } else
 251                         special = "none";
 252         } else {
 253                 value.clear();
 254                 unit = length;
 255                 special = "none";
 256         }
 257 }
 258
 259
 260 void begin_inset(ostream & os, string const & name)
 261 {
 262         os << "\n\\begin_inset " << name;
 263 }
 264
 265
 266 void end_inset(ostream & os)
 267 {
 268         os << "\n\\end_inset \n\n";
 269 }
 270
 271
 272 void skip_braces(Parser & p)
 273 {
 274         if (p.next_token().cat() != catBegin)
 275                 return;
 276         p.get_token();
 277         if (p.next_token().cat() == catEnd) {
 278                 p.get_token();
 279                 return;
 280         }
 281         p.putback();
 282 }
 283
 284
 285 void handle_ert(ostream & os, string const & s, Context & context, bool check_layout = true)
 286 {
 287         if (check_layout) {
 288                 // We must have a valid layout before outputting the ERT inset.
 289                 context.check_layout(os);
 290         }
 291         Context newcontext(true, context.textclass);
 292         begin_inset(os, "ERT");
 293         os << "\nstatus collapsed\n";
 294         newcontext.check_layout(os);
 295         for (string::const_iterator it = s.begin(), et = s.end(); it != et; ++it) {
 296                 if (*it == '\\')
 297                         os << "\n\\backslash \n";
 298                 else if (*it == '\n')
 299                         os << "\n\\newline \n";
 300                 else
 301                         os << *it;
 302         }
 303         newcontext.check_end_layout(os);
 304         end_inset(os);
 305 }
 306
 307
 308 void handle_comment(ostream & os, string const & s, Context & context)
 309 {
 310         // TODO: Handle this better
 311         Context newcontext(true, context.textclass);
 312         begin_inset(os, "ERT");
 313         os << "\nstatus collapsed\n";
 314         newcontext.check_layout(os);
 315         for (string::const_iterator it = s.begin(), et = s.end(); it != et; ++it) {
 316                 if (*it == '\\')
 317                         os << "\n\\backslash \n";
 318                 else
 319                         os << *it;
 320         }
 321         // make sure that our comment is the last thing on the line
 322         os << "\n\\newline";
 323         newcontext.check_end_layout(os);
 324         end_inset(os);
 325 }
 326
 327
 328 class isLayout : public std::unary_function<LyXLayout_ptr, bool> {
 329 public:
 330         isLayout(string const name) : name_(name) {}
 331         bool operator()(LyXLayout_ptr const & ptr) const {
 332                 return ptr->latexname() == name_;
 333         }
 334 private:
 335         string const name_;
 336 };
 337
 338
 339 LyXLayout_ptr findLayout(LyXTextClass const & textclass,
 340                          string const & name)
 341 {
 342         LyXTextClass::const_iterator beg  = textclass.begin();
 343         LyXTextClass::const_iterator end = textclass.end();
 344
 345         LyXTextClass::const_iterator
 346                 it = std::find_if(beg, end, isLayout(name));
 347
 348         return (it == end) ? LyXLayout_ptr() : *it;
 349 }
 350
 351
 352 void eat_whitespace(Parser &, ostream &, Context &, bool);
 353
 354
 355 void output_command_layout(ostream & os, Parser & p, bool outer,
 356                            Context & parent_context,
 357                            LyXLayout_ptr newlayout)
 358 {
 359         parent_context.check_end_layout(os);
 360         Context context(true, parent_context.textclass, newlayout,
 361                         parent_context.layout, parent_context.font);
 362         if (parent_context.deeper_paragraph) {
 363                 // We are beginning a nested environment after a
 364                 // deeper paragraph inside the outer list environment.
 365                 // Therefore we don't need to output a "begin deeper".
 366                 context.need_end_deeper = true;
 367         }
 368         context.check_deeper(os);
 369         context.check_layout(os);
 370         if (context.layout->optionalargs > 0) {
 371                 eat_whitespace(p, os, context, false);
 372                 if (p.next_token().character() == '[') {
 373                         p.get_token(); // eat '['
 374                         begin_inset(os, "OptArg\n");
 375                         os << "status collapsed\n\n";
 376                         parse_text_in_inset(p, os, FLAG_BRACK_LAST, outer, context);
 377                         end_inset(os);
 378                         eat_whitespace(p, os, context, false);
 379                 }
 380         }
 381         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
 382         context.check_end_layout(os);
 383         if (parent_context.deeper_paragraph) {
 384                 // We must suppress the "end deeper" because we
 385                 // suppressed the "begin deeper" above.
 386                 context.need_end_deeper = false;
 387         }
 388         context.check_end_deeper(os);
 389         // We don't need really a new paragraph, but
 390         // we must make sure that the next item gets a \begin_layout.
 391         parent_context.new_paragraph(os);
 392 }
 393
 394
 395 /*!
 396  * Output a space if necessary.
 397  * This function gets called for every whitespace token.
 398  *
 399  * We have three cases here:
 400  * 1. A space must be suppressed. Example: The lyxcode case below
 401  * 2. A space may be suppressed. Example: Spaces before "\par"
 402  * 3. A space must not be suppressed. Example: A space between two words
 403  *
 404  * We currently handle only 1. and 3 and from 2. only the case of
 405  * spaces before newlines as a side effect.
 406  *
 407  * 2. could be used to suppress as many spaces as possible. This has two effects:
 408  * - Reimporting LyX generated LaTeX files changes almost no whitespace
 409  * - Superflous whitespace from non LyX generated LaTeX files is removed.
 410  * The drawback is that the logic inside the function becomes
 411  * complicated, and that is the reason why it is not implemented.
 412  */
 413 void check_space(Parser const & p, ostream & os, Context & context)
 414 {
 415         Token const next = p.next_token();
 416         Token const curr = p.curr_token();
 417         // A space before a single newline and vice versa must be ignored
 418         // LyX emits a newline before \end{lyxcode}.
 419         // This newline must be ignored,
 420         // otherwise LyX will add an additional protected space.
 421         if (next.cat() == catSpace ||
 422             next.cat() == catNewline ||
 423             (next.cs() == "end" && context.layout->free_spacing && curr.cat() == catNewline)) {
 424                 return;
 425         }
 426         context.check_layout(os);
 427         os << ' ';
 428 }
 429
 430
 431 /*!
 432  * Check whether \p command is a known command. If yes,
 433  * handle the command with all arguments.
 434  * \return true if the command was parsed, false otherwise.
 435  */
 436 bool parse_command(string const & command, Parser & p, ostream & os,
 437                    bool outer, Context & context)
 438 {
 439         if (known_commands.find(command) != known_commands.end()) {
 440                 vector<ArgumentType> const & template_arguments = known_commands[command];
 441                 string ert = command;
 442                 size_t no_arguments = template_arguments.size();
 443                 for (size_t i = 0; i < no_arguments; ++i) {
 444                         switch (template_arguments[i]) {
 445                         case required:
 446                                 // This argument contains regular LaTeX
 447                                 handle_ert(os, ert + '{', context);
 448                                 parse_text(p, os, FLAG_ITEM, outer, context);
 449                                 ert = "}";
 450                                 break;
 451                         case verbatim:
 452                                 // This argument may contain special characters
 453                                 ert += '{' + p.verbatim_item() + '}';
 454                                 break;
 455                         case optional:
 456                                 ert += p.getOpt();
 457                                 break;
 458                         }
 459                 }
 460                 handle_ert(os, ert, context);
 461                 return true;
 462         }
 463         return false;
 464 }
 465
 466
 467 /// Parses a minipage or parbox
 468 void parse_box(Parser & p, ostream & os, unsigned flags, bool outer,
 469                Context & parent_context, bool use_parbox)
 470 {
 471         string position;
 472         string inner_pos;
 473         string height_value = "0";
 474         string height_unit = "pt";
 475         string height_special = "none";
 476         string latex_height;
 477         if (p.next_token().asInput() == "[") {
 478                 position = p.getArg('[', ']');
 479                 if (position != "t" && position != "c" && position != "b") {
 480                         position = "c";
 481                         cerr << "invalid position for minipage/parbox" << endl;
 482                 }
 483                 if (p.next_token().asInput() == "[") {
 484                         latex_height = p.getArg('[', ']');
 485                         translate_box_len(latex_height, height_value, height_unit, height_special);
 486
 487                         if (p.next_token().asInput() == "[") {
 488                                 inner_pos = p.getArg('[', ']');
 489                                 if (inner_pos != "c" && inner_pos != "t" &&
 490                                     inner_pos != "b" && inner_pos != "s") {
 491                                         inner_pos = position;
 492                                         cerr << "invalid inner_pos for minipage/parbox"
 493                                              << endl;
 494                                 }
 495                         }
 496                 }
 497         }
 498         string width_value;
 499         string width_unit;
 500         string const latex_width = p.verbatim_item();
 501         translate_len(latex_width, width_value, width_unit);
 502         if (contains(width_unit, '\\') || contains(height_unit, '\\')) {
 503                 // LyX can't handle length variables
 504                 ostringstream ss;
 505                 if (use_parbox)
 506                         ss << "\\parbox";
 507                 else
 508                         ss << "\\begin{minipage}";
 509                 if (!position.empty())
 510                         ss << '[' << position << ']';
 511                 if (!latex_height.empty())
 512                         ss << '[' << latex_height << ']';
 513                 if (!inner_pos.empty())
 514                         ss << '[' << inner_pos << ']';
 515                 ss << "{" << latex_width << "}";
 516                 if (use_parbox)
 517                         ss << '{';
 518                 handle_ert(os, ss.str(), parent_context);
 519                 parent_context.new_paragraph(os);
 520                 parse_text_in_inset(p, os, flags, outer, parent_context);
 521                 if (use_parbox)
 522                         handle_ert(os, "}", parent_context);
 523                 else
 524                         handle_ert(os, "\\end{minipage}", parent_context);
 525         } else {
 526                 // LyX does not like empty positions, so we have
 527                 // to set them to the LaTeX default values here.
 528                 if (position.empty())
 529                         position = "c";
 530                 if (inner_pos.empty())
 531                         inner_pos = position;
 532                 parent_context.check_layout(os);
 533                 begin_inset(os, "Box Frameless\n");
 534                 os << "position \"" << position << "\"\n";
 535                 os << "hor_pos \"c\"\n";
 536                 os << "has_inner_box 1\n";
 537                 os << "inner_pos \"" << inner_pos << "\"\n";
 538                 os << "use_parbox " << use_parbox << "\n";
 539                 os << "width \"" << width_value << width_unit << "\"\n";
 540                 os << "special \"none\"\n";
 541                 os << "height \"" << height_value << height_unit << "\"\n";
 542                 os << "height_special \"" << height_special << "\"\n";
 543                 os << "status open\n\n";
 544                 parse_text_in_inset(p, os, flags, outer, parent_context);
 545                 end_inset(os);
 546 #ifdef PRESERVE_LAYOUT
 547                 // lyx puts a % after the end of the minipage
 548                 if (p.next_token().cat() == catNewline && p.next_token().cs().size() > 1) {
 549                         // new paragraph
 550                         //handle_comment(os, "%dummy", parent_context);
 551                         p.get_token();
 552                         p.skip_spaces();
 553                         parent_context.new_paragraph(os);
 554                 }
 555                 else if (p.next_token().cat() == catSpace || p.next_token().cat() == catNewline) {
 556                         //handle_comment(os, "%dummy", parent_context);
 557                         p.get_token();
 558                         p.skip_spaces();
 559                         // We add a protected space if something real follows
 560                         if (p.good() && p.next_token().cat() != catComment) {
 561                                 os << "\\InsetSpace ~\n";
 562                         }
 563                 }
 564 #endif
 565         }
 566 }
 567
 568
 569 void parse_environment(Parser & p, ostream & os, bool outer,
 570                        Context & parent_context)
 571 {
 572         LyXLayout_ptr newlayout;
 573         string const name = p.getArg('{', '}');
 574         const bool is_starred = suffixIs(name, '*');
 575         string const unstarred_name = rtrim(name, "*");
 576         eat_whitespace(p, os, parent_context, false);
 577         active_environments.push_back(name);
 578
 579         if (is_math_env(name)) {
 580                 parent_context.check_layout(os);
 581                 begin_inset(os, "Formula ");
 582                 os << "\\begin{" << name << "}";
 583                 parse_math(p, os, FLAG_END, MATH_MODE);
 584                 os << "\\end{" << name << "}";
 585                 end_inset(os);
 586         }
 587
 588         else if (name == "tabular") {
 589                 parent_context.check_layout(os);
 590                 begin_inset(os, "Tabular ");
 591                 handle_tabular(p, os, parent_context);
 592                 end_inset(os);
 593         }
 594
 595         else if (parent_context.textclass.floats().typeExist(unstarred_name)) {
 596                 parent_context.check_layout(os);
 597                 begin_inset(os, "Float " + unstarred_name + "\n");
 598                 if (p.next_token().asInput() == "[") {
 599                         os << "placement " << p.getArg('[', ']') << '\n';
 600                 }
 601                 os << "wide " << tostr(is_starred)
 602                    << "\nstatus open\n\n";
 603                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
 604                 end_inset(os);
 605                 // We don't need really a new paragraph, but
 606                 // we must make sure that the next item gets a \begin_layout.
 607                 parent_context.new_paragraph(os);
 608         }
 609
 610         else if (name == "minipage")
 611                 parse_box(p, os, FLAG_END, outer, parent_context, false);
 612
 613         // Alignment settings
 614         else if (name == "center" || name == "flushleft" || name == "flushright" ||
 615                  name == "centering" || name == "raggedright" || name == "raggedleft") {
 616                 // We must begin a new paragraph if not already done
 617                 if (! parent_context.atParagraphStart()) {
 618                         parent_context.check_end_layout(os);
 619                         parent_context.new_paragraph(os);
 620                 }
 621                 if (name == "flushleft" || name == "raggedright")
 622                         parent_context.add_extra_stuff("\\align left ");
 623                 else if (name == "flushright" || name == "raggedleft")
 624                         parent_context.add_extra_stuff("\\align right ");
 625                 else
 626                         parent_context.add_extra_stuff("\\align center ");
 627                 parse_text(p, os, FLAG_END, outer, parent_context);
 628                 // Just in case the environment is empty ..
 629                 parent_context.extra_stuff.erase();
 630                 // We must begin a new paragraph to reset the alignment
 631                 parent_context.new_paragraph(os);
 632         }
 633
 634         // The single '=' is meant here.
 635         else if ((newlayout = findLayout(parent_context.textclass, name)).get() &&
 636                    newlayout->isEnvironment()) {
 637                 Context context(true, parent_context.textclass, newlayout,
 638                                 parent_context.layout, parent_context.font);
 639                 if (parent_context.deeper_paragraph) {
 640                         // We are beginning a nested environment after a
 641                         // deeper paragraph inside the outer list environment.
 642                         // Therefore we don't need to output a "begin deeper".
 643                         context.need_end_deeper = true;
 644                 }
 645                 parent_context.check_end_layout(os);
 646                 switch (context.layout->latextype) {
 647                 case  LATEX_LIST_ENVIRONMENT:
 648                         context.extra_stuff = "\\labelwidthstring "
 649                                 + p.verbatim_item() + '\n';
 650                         p.skip_spaces();
 651                         break;
 652                 case  LATEX_BIB_ENVIRONMENT:
 653                         p.verbatim_item(); // swallow next arg
 654                         p.skip_spaces();
 655                         break;
 656                 default:
 657                         break;
 658                 }
 659                 context.check_deeper(os);
 660                 parse_text(p, os, FLAG_END, outer, context);
 661                 context.check_end_layout(os);
 662                 if (parent_context.deeper_paragraph) {
 663                         // We must suppress the "end deeper" because we
 664                         // suppressed the "begin deeper" above.
 665                         context.need_end_deeper = false;
 666                 }
 667                 context.check_end_deeper(os);
 668                 parent_context.new_paragraph(os);
 669         }
 670
 671         else if (name == "appendix") {
 672                 // This is no good latex style, but it works and is used in some documents...
 673                 parent_context.check_end_layout(os);
 674                 Context context(true, parent_context.textclass, parent_context.layout,
 675                                 parent_context.layout, parent_context.font);
 676                 context.check_layout(os);
 677                 os << "\\start_of_appendix\n";
 678                 parse_text(p, os, FLAG_END, outer, context);
 679                 context.check_end_layout(os);
 680         }
 681
 682         else if (name == "comment") {
 683                 parent_context.check_layout(os);
 684                 begin_inset(os, "Note Comment\n");
 685                 os << "status open\n";
 686                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
 687                 end_inset(os);
 688         }
 689
 690         else if (name == "lyxgreyedout") {
 691                 parent_context.check_layout(os);
 692                 begin_inset(os, "Note Greyedout\n");
 693                 os << "status open\n";
 694                 parse_text_in_inset(p, os, FLAG_END, outer, parent_context);
 695                 end_inset(os);
 696         }
 697
 698         else if (name == "tabbing") {
 699                 // We need to remember that we have to handle '\=' specially
 700                 handle_ert(os, "\\begin{" + name + "}", parent_context);
 701                 parse_text_snippet(p, os, FLAG_END | FLAG_TABBING, outer, parent_context);
 702                 handle_ert(os, "\\end{" + name + "}", parent_context);
 703         }
 704
 705         else {
 706                 handle_ert(os, "\\begin{" + name + "}", parent_context);
 707                 parse_text_snippet(p, os, FLAG_END, outer, parent_context);
 708                 handle_ert(os, "\\end{" + name + "}", parent_context);
 709         }
 710
 711         active_environments.pop_back();
 712         if (name != "math")
 713                 p.skip_spaces();
 714 }
 715
 716 /// parses a comment and outputs it to \p os.
 717 void parse_comment(Parser & p, ostream & os, Token const & t, Context & context)
 718 {
 719         BOOST_ASSERT(t.cat() == catComment);
 720         context.check_layout(os);
 721         if (!t.cs().empty()) {
 722                 handle_comment(os, '%' + t.cs(), context);
 723                 if (p.next_token().cat() == catNewline) {
 724                         // A newline after a comment line starts a new
 725                         // paragraph
 726                         if(!context.atParagraphStart()) {
 727                                 // Only start a new paragraph if not already
 728                                 // done (we might get called recursively)
 729                                 context.new_paragraph(os);
 730                         }
 731                         eat_whitespace(p, os, context, true);
 732                 }
 733         } else {
 734                 // "%\n" combination
 735                 p.skip_spaces();
 736         }
 737 }
 738
 739
 740 /*!
 741  * Reads spaces and comments until the first non-space, non-comment token.
 742  * New paragraphs (double newlines or \\par) are handled like simple spaces
 743  * if \p eatParagraph is true.
 744  * Spaces are skipped, but comments are written to \p os.
 745  */
 746 void eat_whitespace(Parser & p, ostream & os, Context & context,
 747                     bool eatParagraph)
 748 {
 749         while (p.good()) {
 750                 Token const & t = p.get_token();
 751                 if (t.cat() == catComment)
 752                         parse_comment(p, os, t, context);
 753                 else if ((! eatParagraph && p.isParagraph()) ||
 754                          (t.cat() != catSpace && t.cat() != catNewline)) {
 755                         p.putback();
 756                         return;
 757                 }
 758         }
 759 }
 760
 761
 762 /*!
 763  * Set a font attribute, parse text and reset the font attribute.
 764  * \param attribute Attribute name (e.g. \\family, \\shape etc.)
 765  * \param currentvalue Current value of the attribute. Is set to the new
 766  * value during parsing.
 767  * \param newvalue New value of the attribute
 768  */
 769 void parse_text_attributes(Parser & p, ostream & os, unsigned flags, bool outer,
 770                            Context & context, string const & attribute,
 771                            string & currentvalue, string const & newvalue)
 772 {
 773         context.check_layout(os);
 774         string oldvalue = currentvalue;
 775         currentvalue = newvalue;
 776         os << '\n' << attribute << ' ' << newvalue << " \n";
 777         parse_text_snippet(p, os, flags, outer, context);
 778         currentvalue = oldvalue;
 779         os << '\n' << attribute << ' ' << oldvalue << " \n";
 780 }
 781
 782 } // anonymous namespace
 783
 784
 785 void parse_text(Parser & p, ostream & os, unsigned flags, bool outer,
 786                 Context & context)
 787 {
 788         LyXLayout_ptr newlayout;
 789         // Store the latest bibliographystyle (needed for bibtex inset)
 790         string bibliographystyle;
 791         while (p.good()) {
 792                 Token const & t = p.get_token();
 793
 794 #ifdef FILEDEBUG
 795                 cerr << "t: " << t << " flags: " << flags << "\n";
 796 #endif
 797
 798                 if (flags & FLAG_ITEM) {
 799                         if (t.cat() == catSpace)
 800                                 continue;
 801
 802                         flags &= ~FLAG_ITEM;
 803                         if (t.cat() == catBegin) {
 804                                 // skip the brace and collect everything to the next matching
 805                                 // closing brace
 806                                 flags |= FLAG_BRACE_LAST;
 807                                 continue;
 808                         }
 809
 810                         // handle only this single token, leave the loop if done
 811                         flags |= FLAG_LEAVE;
 812                 }
 813
 814                 if (t.character() == ']' && (flags & FLAG_BRACK_LAST))
 815                         return;
 816
 817                 //
 818                 // cat codes
 819                 //
 820                 if (t.cat() == catMath) {
 821                         // we are inside some text mode thingy, so opening new math is allowed
 822                         context.check_layout(os);
 823                         begin_inset(os, "Formula ");
 824                         Token const & n = p.get_token();
 825                         if (n.cat() == catMath && outer) {
 826                                 // TeX's $$...$$ syntax for displayed math
 827                                 os << "\\[";
 828                                 parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
 829                                 os << "\\]";
 830                                 p.get_token(); // skip the second '$' token
 831                         } else {
 832                                 // simple $...$  stuff
 833                                 p.putback();
 834                                 os << '$';
 835                                 parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
 836                                 os << '$';
 837                         }
 838                         end_inset(os);
 839                 }
 840
 841                 else if (t.cat() == catSuper || t.cat() == catSub)
 842                         cerr << "catcode " << t << " illegal in text mode\n";
 843
 844                 // Basic support for english quotes. This should be
 845                 // extended to other quotes, but is not so easy (a
 846                 // left english quote is the same as a right german
 847                 // quote...)
 848                 else if (t.asInput() == "`"
 849                          && p.next_token().asInput() == "`") {
 850                         context.check_layout(os);
 851                         begin_inset(os, "Quotes ");
 852                         os << "eld";
 853                         end_inset(os);
 854                         p.get_token();
 855                         skip_braces(p);
 856                 }
 857                 else if (t.asInput() == "'"
 858                          && p.next_token().asInput() == "'") {
 859                         context.check_layout(os);
 860                         begin_inset(os, "Quotes ");
 861                         os << "erd";
 862                         end_inset(os);
 863                         p.get_token();
 864                         skip_braces(p);
 865                 }
 866
 867                 else if (t.cat() == catSpace || (t.cat() == catNewline && ! p.isParagraph()))
 868                         check_space(p, os, context);
 869
 870                 else if (t.cat() == catLetter ||
 871                                t.cat() == catOther ||
 872                                t.cat() == catAlign ||
 873                                t.cat() == catParameter) {
 874                         context.check_layout(os);
 875                         os << t.character();
 876                 }
 877
 878                 else if (p.isParagraph()) {
 879                         context.new_paragraph(os);
 880                         eat_whitespace(p, os, context, true);
 881                 }
 882
 883                 else if (t.cat() == catActive) {
 884                         context.check_layout(os);
 885                         if (t.character() == '~') {
 886                                 if (context.layout->free_spacing)
 887                                         os << ' ';
 888                                 else
 889                                         os << "\\InsetSpace ~\n";
 890                         } else
 891                                 os << t.character();
 892                 }
 893
 894                 else if (t.cat() == catBegin) {
 895                         context.check_layout(os);
 896                         // special handling of font attribute changes
 897                         Token const prev = p.prev_token();
 898                         Token const next = p.next_token();
 899                         Font const oldFont = context.font;
 900                         string const s = parse_text(p, FLAG_BRACE_LAST, outer,
 901                                                     context);
 902                         context.font = oldFont;
 903                         if (s.empty() && (p.next_token().character() == '`' ||
 904                                           (prev.character() == '-' &&
 905                                            p.next_token().character() == '-')))
 906                                 ; // ignore it in {}`` or -{}-
 907                         else if (s == "[" || s == "]" || s == "*")
 908                                 os << s;
 909                         else if (is_known(next.cs(), known_sizes))
 910                                 // s will change the size, so we must reset
 911                                 // it here
 912                                 os << s << "\n\\size " << context.font.size
 913                                    << " \n";
 914                         else if (is_known(next.cs(), known_font_families))
 915                                 // s will change the font family, so we must
 916                                 // reset it here
 917                                 os << s << "\n\\family "
 918                                    << context.font.family << " \n";
 919                         else if (is_known(next.cs(), known_font_series))
 920                                 // s will change the font series, so we must
 921                                 // reset it here
 922                                 os << s << "\n\\series "
 923                                    << context.font.series << " \n";
 924                         else if (is_known(next.cs(), known_font_shapes))
 925                                 // s will change the font shape, so we must
 926                                 // reset it here
 927                                 os << s << "\n\\shape "
 928                                    << context.font.shape << " \n";
 929                         else if (is_known(next.cs(), known_old_font_families) ||
 930                                  is_known(next.cs(), known_old_font_series) ||
 931                                  is_known(next.cs(), known_old_font_shapes))
 932                                 // s will change the font family, series
 933                                 // and shape, so we must reset it here
 934                                 os << s
 935                                    <<  "\n\\family " << context.font.family
 936                                    << " \n\\series " << context.font.series
 937                                    << " \n\\shape "  << context.font.shape
 938                                    << " \n";
 939                         else {
 940                                 handle_ert(os, "{", context, false);
 941                                 // s will end the current layout and begin a
 942                                 // new one if necessary
 943                                 os << s;
 944                                 handle_ert(os, "}", context);
 945                         }
 946                 }
 947
 948                 else if (t.cat() == catEnd) {
 949                         if (flags & FLAG_BRACE_LAST) {
 950                                 return;
 951                         }
 952                         cerr << "stray '}' in text\n";
 953                         handle_ert(os, "}", context);
 954                 }
 955
 956                 else if (t.cat() == catComment)
 957                         parse_comment(p, os, t, context);
 958
 959                 //
 960                 // control sequences
 961                 //
 962
 963                 else if (t.cs() == "(") {
 964                         context.check_layout(os);
 965                         begin_inset(os, "Formula");
 966                         os << " \\(";
 967                         parse_math(p, os, FLAG_SIMPLE2, MATH_MODE);
 968                         os << "\\)";
 969                         end_inset(os);
 970                 }
 971
 972                 else if (t.cs() == "[") {
 973                         context.check_layout(os);
 974                         begin_inset(os, "Formula");
 975                         os << " \\[";
 976                         parse_math(p, os, FLAG_EQUATION, MATH_MODE);
 977                         os << "\\]";
 978                         end_inset(os);
 979                 }
 980
 981                 else if (t.cs() == "begin")
 982                         parse_environment(p, os, outer, context);
 983
 984                 else if (t.cs() == "end") {
 985                         if (flags & FLAG_END) {
 986                                 // eat environment name
 987                                 string const name = p.getArg('{', '}');
 988                                 if (name != active_environment())
 989                                         cerr << "\\end{" + name + "} does not match \\begin{"
 990                                                 + active_environment() + "}\n";
 991                                 return;
 992                         }
 993                         p.error("found 'end' unexpectedly");
 994                 }
 995
 996                 else if (t.cs() == "item") {
 997                         p.skip_spaces();
 998                         string s;
 999                         bool optarg = false;
1000                         if (p.next_token().character() == '[') {
1001                                 p.get_token(); // eat '['
1002                                 Context newcontext(false, context.textclass);
1003                                 newcontext.font = context.font;
1004                                 s = parse_text(p, FLAG_BRACK_LAST, outer, newcontext);
1005                                 optarg = true;
1006                         }
1007                         context.set_item();
1008                         context.check_layout(os);
1009                         if (optarg) {
1010                                 if (context.layout->labeltype != LABEL_MANUAL) {
1011                                         // lyx does not support \item[\mybullet]
1012                                         // in itemize environments
1013                                         handle_ert(os, "[", context);
1014                                         os << s;
1015                                         handle_ert(os, "]", context);
1016                                 } else if (!s.empty()) {
1017                                         // The space is needed to separate the
1018                                         // item from the rest of the sentence.
1019                                         os << s << ' ';
1020                                         eat_whitespace(p, os, context, false);
1021                                 }
1022                         }
1023                 }
1024
1025                 else if (t.cs() == "bibitem") {
1026                         context.set_item();
1027                         context.check_layout(os);
1028                         os << "\\bibitem ";
1029                         os << p.getOpt();
1030                         os << '{' << p.verbatim_item() << '}' << "\n";
1031                 }
1032
1033                 else if (t.cs() == "def") {
1034                         context.check_layout(os);
1035                         eat_whitespace(p, os, context, false);
1036                         string name = p.get_token().cs();
1037                         while (p.next_token().cat() != catBegin)
1038                                 name += p.get_token().asString();
1039                         handle_ert(os, "\\def\\" + name + '{' + p.verbatim_item() + '}', context);
1040                 }
1041
1042                 else if (t.cs() == "noindent") {
1043                         p.skip_spaces();
1044                         context.add_extra_stuff("\\noindent ");
1045                 }
1046
1047                 else if (t.cs() == "appendix") {
1048                         p.skip_spaces();
1049                         context.add_extra_stuff("\\start_of_appendix ");
1050                 }
1051
1052                 // Must attempt to parse "Section*" before "Section".
1053                 else if ((p.next_token().asInput() == "*") &&
1054                          // The single '=' is meant here.
1055                          (newlayout = findLayout(context.textclass,
1056                                                  t.cs() + '*')).get() &&
1057                          newlayout->isCommand()) {
1058                         p.get_token();
1059                         output_command_layout(os, p, outer, context, newlayout);
1060                         p.skip_spaces();
1061                 }
1062
1063                 // The single '=' is meant here.
1064                 else if ((newlayout = findLayout(context.textclass, t.cs())).get() &&
1065                          newlayout->isCommand()) {
1066                         output_command_layout(os, p, outer, context, newlayout);
1067                         p.skip_spaces();
1068                 }
1069
1070                 else if (t.cs() == "includegraphics") {
1071                         map<string, string> opts = split_map(p.getArg('[', ']'));
1072                         string name = subst(p.verbatim_item(), "\\lyxdot ", ".");
1073
1074                         context.check_layout(os);
1075                         begin_inset(os, "Graphics ");
1076                         os << "\n\tfilename " << name << '\n';
1077                         if (opts.find("width") != opts.end())
1078                                 os << "\twidth "
1079                                    << translate_len(opts["width"]) << '\n';
1080                         if (opts.find("height") != opts.end())
1081                                 os << "\theight "
1082                                    << translate_len(opts["height"]) << '\n';
1083                         if (opts.find("scale") != opts.end()) {
1084                                 istringstream iss(opts["scale"]);
1085                                 double val;
1086                                 iss >> val;
1087                                 val = val*100;
1088                                 os << "\tscale " << val << '\n';
1089                         }
1090                         if (opts.find("angle") != opts.end())
1091                                 os << "\trotateAngle "
1092                                    << opts["angle"] << '\n';
1093                         if (opts.find("origin") != opts.end()) {
1094                                 ostringstream ss;
1095                                 string const opt = opts["origin"];
1096                                 if (opt.find('l') != string::npos) ss << "left";
1097                                 if (opt.find('r') != string::npos) ss << "right";
1098                                 if (opt.find('c') != string::npos) ss << "center";
1099                                 if (opt.find('t') != string::npos) ss << "Top";
1100                                 if (opt.find('b') != string::npos) ss << "Bottom";
1101                                 if (opt.find('B') != string::npos) ss << "Baseline";
1102                                 if (!ss.str().empty())
1103                                         os << "\trotateOrigin " << ss.str() << '\n';
1104                                 else
1105                                         cerr << "Warning: Ignoring unknown includegraphics origin argument '" << opt << "'\n";
1106                         }
1107                         if (opts.find("keepaspectratio") != opts.end())
1108                                 os << "\tkeepAspectRatio\n";
1109                         if (opts.find("clip") != opts.end())
1110                                 os << "\tclip\n";
1111                         if (opts.find("draft") != opts.end())
1112                                 os << "\tdraft\n";
1113                         if (opts.find("bb") != opts.end())
1114                                 os << "\tBoundingBox "
1115                                    << opts["bb"] << '\n';
1116                         int numberOfbbOptions = 0;
1117                         if (opts.find("bbllx") != opts.end())
1118                                 numberOfbbOptions++;
1119                         if (opts.find("bblly") != opts.end())
1120                                 numberOfbbOptions++;
1121                         if (opts.find("bburx") != opts.end())
1122                                 numberOfbbOptions++;
1123                         if (opts.find("bbury") != opts.end())
1124                                 numberOfbbOptions++;
1125                         if (numberOfbbOptions == 4)
1126                                 os << "\tBoundingBox "
1127                                    << opts["bbllx"] << opts["bblly"]
1128                                    << opts["bburx"] << opts["bbury"] << '\n';
1129                         else if (numberOfbbOptions > 0)
1130                                 cerr << "Warning: Ignoring incomplete includegraphics boundingbox arguments.\n";
1131                         numberOfbbOptions = 0;
1132                         if (opts.find("natwidth") != opts.end())
1133                                 numberOfbbOptions++;
1134                         if (opts.find("natheight") != opts.end())
1135                                 numberOfbbOptions++;
1136                         if (numberOfbbOptions == 2)
1137                                 os << "\tBoundingBox 0bp 0bp "
1138                                    << opts["natwidth"] << opts["natheight"] << '\n';
1139                         else if (numberOfbbOptions > 0)
1140                                 cerr << "Warning: Ignoring incomplete includegraphics boundingbox arguments.\n";
1141                         ostringstream special;
1142                         if (opts.find("hiresbb") != opts.end())
1143                                 special << "hiresbb,";
1144                         if (opts.find("trim") != opts.end())
1145                                 special << "trim,";
1146                         if (opts.find("viewport") != opts.end())
1147                                 special << "viewport=" << opts["viewport"] << ',';
1148                         if (opts.find("totalheight") != opts.end())
1149                                 special << "totalheight=" << opts["totalheight"] << ',';
1150                         if (opts.find("type") != opts.end())
1151                                 special << "type=" << opts["type"] << ',';
1152                         if (opts.find("ext") != opts.end())
1153                                 special << "ext=" << opts["ext"] << ',';
1154                         if (opts.find("read") != opts.end())
1155                                 special << "read=" << opts["read"] << ',';
1156                         if (opts.find("command") != opts.end())
1157                                 special << "command=" << opts["command"] << ',';
1158                         string s_special = special.str();
1159                         if (!s_special.empty()) {
1160                                 // We had special arguments. Remove the trailing ','.
1161                                 os << "\tspecial " << s_special.substr(0, s_special.size() - 1) << '\n';
1162                         }
1163                         // TODO: Handle the unknown settings better.
1164                         // Warn about invalid options.
1165                         // Check whether some option was given twice.
1166                         end_inset(os);
1167                 }
1168
1169                 else if (t.cs() == "footnote") {
1170                         p.skip_spaces();
1171                         context.check_layout(os);
1172                         begin_inset(os, "Foot\n");
1173                         os << "status collapsed\n\n";
1174                         parse_text_in_inset(p, os, FLAG_ITEM, false, context);
1175                         end_inset(os);
1176                 }
1177
1178                 else if (t.cs() == "marginpar") {
1179                         p.skip_spaces();
1180                         context.check_layout(os);
1181                         begin_inset(os, "Marginal\n");
1182                         os << "status collapsed\n\n";
1183                         parse_text_in_inset(p, os, FLAG_ITEM, false, context);
1184                         end_inset(os);
1185                 }
1186
1187                 else if (t.cs() == "ensuremath") {
1188                         p.skip_spaces();
1189                         context.check_layout(os);
1190                         Context newcontext(false, context.textclass);
1191                         newcontext.font = context.font;
1192                         string s = parse_text(p, FLAG_ITEM, false, newcontext);
1193                         if (s == "±" || s == "³" || s == "²" || s == "µ")
1194                                 os << s;
1195                         else
1196                                 handle_ert(os, "\\ensuremath{" + s + "}",
1197                                            context);
1198                 }
1199
1200                 else if (t.cs() == "hfill") {
1201                         context.check_layout(os);
1202                         os << "\n\\hfill \n";
1203                         skip_braces(p);
1204                         p.skip_spaces();
1205                 }
1206
1207                 else if (t.cs() == "makeindex" || t.cs() == "maketitle") {
1208                         p.skip_spaces();
1209                         skip_braces(p); // swallow this
1210                 }
1211
1212                 else if (t.cs() == "tableofcontents") {
1213                         p.skip_spaces();
1214                         context.check_layout(os);
1215                         begin_inset(os, "LatexCommand \\tableofcontents\n");
1216                         end_inset(os);
1217                         skip_braces(p); // swallow this
1218                 }
1219
1220                 else if (t.cs() == "listoffigures") {
1221                         p.skip_spaces();
1222                         context.check_layout(os);
1223                         begin_inset(os, "FloatList figure\n");
1224                         end_inset(os);
1225                         skip_braces(p); // swallow this
1226                 }
1227
1228                 else if (t.cs() == "listoftables") {
1229                         p.skip_spaces();
1230                         context.check_layout(os);
1231                         begin_inset(os, "FloatList table\n");
1232                         end_inset(os);
1233                         skip_braces(p); // swallow this
1234                 }
1235
1236                 else if (t.cs() == "listof") {
1237                         p.skip_spaces(true);
1238                         string const name = p.get_token().asString();
1239                         if (context.textclass.floats().typeExist(name)) {
1240                                 context.check_layout(os);
1241                                 begin_inset(os, "FloatList ");
1242                                 os << name << "\n";
1243                                 end_inset(os);
1244                                 p.get_token(); // swallow second arg
1245                         } else
1246                                 handle_ert(os, "\\listof{" + name + "}", context);
1247                 }
1248
1249                 else if (t.cs() == "textrm")
1250                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1251                                               context, "\\family",
1252                                               context.font.family, "roman");
1253
1254                 else if (t.cs() == "textsf")
1255                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1256                                               context, "\\family",
1257                                               context.font.family, "sans");
1258
1259                 else if (t.cs() == "texttt")
1260                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1261                                               context, "\\family",
1262                                               context.font.family, "typewriter");
1263
1264                 else if (t.cs() == "textmd")
1265                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1266                                               context, "\\series",
1267                                               context.font.series, "medium");
1268
1269                 else if (t.cs() == "textbf")
1270                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1271                                               context, "\\series",
1272                                               context.font.series, "bold");
1273
1274                 else if (t.cs() == "textup")
1275                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1276                                               context, "\\shape",
1277                                               context.font.shape, "up");
1278
1279                 else if (t.cs() == "textit")
1280                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1281                                               context, "\\shape",
1282                                               context.font.shape, "italic");
1283
1284                 else if (t.cs() == "textsl")
1285                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1286                                               context, "\\shape",
1287                                               context.font.shape, "slanted");
1288
1289                 else if (t.cs() == "textsc")
1290                         parse_text_attributes(p, os, FLAG_ITEM, outer,
1291                                               context, "\\shape",
1292                                               context.font.shape, "smallcaps");
1293
1294                 else if (t.cs() == "textnormal" || t.cs() == "normalfont") {
1295                         context.check_layout(os);
1296                         Font oldFont = context.font;
1297                         context.font.init();
1298                         context.font.size = oldFont.size;
1299                         os << "\n\\family " << context.font.family << " \n";
1300                         os << "\n\\series " << context.font.series << " \n";
1301                         os << "\n\\shape " << context.font.shape << " \n";
1302                         if (t.cs() == "textnormal") {
1303                                 parse_text_snippet(p, os, FLAG_ITEM, outer, context);
1304                                 context.font = oldFont;
1305                                 os << "\n\\shape " << oldFont.shape << " \n";
1306                                 os << "\n\\series " << oldFont.series << " \n";
1307                                 os << "\n\\family " << oldFont.family << " \n";
1308                         } else
1309                                 eat_whitespace(p, os, context, false);
1310                 }
1311
1312                 else if (t.cs() == "underbar") {
1313                         context.check_layout(os);
1314                         os << "\n\\bar under \n";
1315                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
1316                         os << "\n\\bar default \n";
1317                 }
1318
1319                 else if (t.cs() == "emph" || t.cs() == "noun") {
1320                         context.check_layout(os);
1321                         os << "\n\\" << t.cs() << " on \n";
1322                         parse_text_snippet(p, os, FLAG_ITEM, outer, context);
1323                         os << "\n\\" << t.cs() << " default \n";
1324                 }
1325
1326                 else if (is_known(t.cs(), known_latex_commands)) {
1327                         context.check_layout(os);
1328                         begin_inset(os, "LatexCommand ");
1329                         os << '\\' << t.cs();
1330                         os << p.getOpt();
1331                         os << p.getOpt();
1332                         os << '{' << p.verbatim_item() << "}\n";
1333                         end_inset(os);
1334                 }
1335
1336                 else if (is_known(t.cs(), known_quotes)) {
1337                         char const * const * where = is_known(t.cs(), known_quotes);
1338                         context.check_layout(os);
1339                         begin_inset(os, "Quotes ");
1340                         os << known_coded_quotes[where - known_quotes];
1341                         end_inset(os);
1342                         // LyX adds {} after the quote, so we have to eat
1343                         // spaces here if there are any before a possible
1344                         // {} pair.
1345                         eat_whitespace(p, os, context, false);
1346                         skip_braces(p);
1347                 }
1348
1349                 else if (is_known(t.cs(), known_sizes)) {
1350                         char const * const * where = is_known(t.cs(), known_sizes);
1351                         context.check_layout(os);
1352                         context.font.size = known_coded_sizes[where - known_sizes];
1353                         os << "\n\\size " << context.font.size << '\n';
1354                         eat_whitespace(p, os, context, false);
1355                 }
1356
1357                 else if (is_known(t.cs(), known_font_families)) {
1358                         char const * const * where =
1359                                 is_known(t.cs(), known_font_families);
1360                         context.check_layout(os);
1361                         context.font.family =
1362                                 known_coded_font_families[where - known_font_families];
1363                         os << "\n\\family " << context.font.family << '\n';
1364                         eat_whitespace(p, os, context, false);
1365                 }
1366
1367                 else if (is_known(t.cs(), known_font_series)) {
1368                         char const * const * where =
1369                                 is_known(t.cs(), known_font_series);
1370                         context.check_layout(os);
1371                         context.font.series =
1372                                 known_coded_font_series[where - known_font_series];
1373                         os << "\n\\series " << context.font.series << '\n';
1374                         eat_whitespace(p, os, context, false);
1375                 }
1376
1377                 else if (is_known(t.cs(), known_font_shapes)) {
1378                         char const * const * where =
1379                                 is_known(t.cs(), known_font_shapes);
1380                         context.check_layout(os);
1381                         context.font.shape =
1382                                 known_coded_font_shapes[where - known_font_shapes];
1383                         os << "\n\\shape " << context.font.shape << '\n';
1384                         eat_whitespace(p, os, context, false);
1385                 }
1386                 else if (is_known(t.cs(), known_old_font_families)) {
1387                         char const * const * where =
1388                                 is_known(t.cs(), known_old_font_families);
1389                         context.check_layout(os);
1390                         string oldsize = context.font.size;
1391                         context.font.init();
1392                         context.font.size = oldsize;
1393                         context.font.family =
1394                                 known_coded_font_families[where - known_old_font_families];
1395                         os << "\n\\family " << context.font.family << " \n"
1396                            <<   "\\series " << context.font.series << " \n"
1397                            <<   "\\shape "  << context.font.shape  << " \n";
1398                         eat_whitespace(p, os, context, false);
1399                 }
1400
1401                 else if (is_known(t.cs(), known_old_font_series)) {
1402                         char const * const * where =
1403                                 is_known(t.cs(), known_old_font_series);
1404                         context.check_layout(os);
1405                         string oldsize = context.font.size;
1406                         context.font.init();
1407                         context.font.size = oldsize;
1408                         context.font.series =
1409                                 known_coded_font_series[where - known_old_font_series];
1410                         os << "\n\\family " << context.font.family << " \n"
1411                            <<   "\\series " << context.font.series << " \n"
1412                            <<   "\\shape "  << context.font.shape  << " \n";
1413                         eat_whitespace(p, os, context, false);
1414                 }
1415
1416                 else if (is_known(t.cs(), known_old_font_shapes)) {
1417                         char const * const * where =
1418                                 is_known(t.cs(), known_old_font_shapes);
1419                         context.check_layout(os);
1420                         string oldsize = context.font.size;
1421                         context.font.init();
1422                         context.font.size = oldsize;
1423                         context.font.shape =
1424                                 known_coded_font_shapes[where - known_old_font_shapes];
1425                         os << "\n\\family " << context.font.family << " \n"
1426                            <<   "\\series " << context.font.series << " \n"
1427                            <<   "\\shape "  << context.font.shape  << " \n";
1428                         eat_whitespace(p, os, context, false);
1429                 }
1430
1431                 else if (t.cs() == "LyX" || t.cs() == "TeX"
1432                          || t.cs() == "LaTeX") {
1433                         context.check_layout(os);
1434                         os << t.cs();
1435                         skip_braces(p); // eat {}
1436                 }
1437
1438                 else if (t.cs() == "LaTeXe") {
1439                         context.check_layout(os);
1440                         os << "LaTeX2e";
1441                         skip_braces(p); // eat {}
1442                 }
1443
1444                 else if (t.cs() == "ldots") {
1445                         context.check_layout(os);
1446                         skip_braces(p);
1447                         os << "\\SpecialChar \\ldots{}\n";
1448                 }
1449
1450                 else if (t.cs() == "lyxarrow") {
1451                         context.check_layout(os);
1452                         os << "\\SpecialChar \\menuseparator\n";
1453                         skip_braces(p);
1454                 }
1455
1456                 else if (t.cs() == "textcompwordmark") {
1457                         context.check_layout(os);
1458                         os << "\\SpecialChar \\textcompwordmark{}\n";
1459                         skip_braces(p);
1460                 }
1461
1462                 else if (t.cs() == "@" && p.next_token().asInput() == ".") {
1463                         context.check_layout(os);
1464                         os << "\\SpecialChar \\@.\n";
1465                         p.get_token();
1466                 }
1467
1468                 else if (t.cs() == "-") {
1469                         context.check_layout(os);
1470                         os << "\\SpecialChar \\-\n";
1471                 }
1472
1473                 else if (t.cs() == "textasciitilde") {
1474                         context.check_layout(os);
1475                         os << '~';
1476                         skip_braces(p);
1477                 }
1478
1479                 else if (t.cs() == "textasciicircum") {
1480                         context.check_layout(os);
1481                         os << '^';
1482                         skip_braces(p);
1483                 }
1484
1485                 else if (t.cs() == "textbackslash") {
1486                         context.check_layout(os);
1487                         os << "\n\\backslash \n";
1488                         skip_braces(p);
1489                 }
1490
1491                 else if (t.cs() == "_" || t.cs() == "&" || t.cs() == "#"
1492                             || t.cs() == "$" || t.cs() == "{" || t.cs() == "}"
1493                             || t.cs() == "%") {
1494                         context.check_layout(os);
1495                         os << t.cs();
1496                 }
1497
1498                 else if (t.cs() == "char") {
1499                         context.check_layout(os);
1500                         if (p.next_token().character() == '`') {
1501                                 p.get_token();
1502                                 if (p.next_token().cs() == "\"") {
1503                                         p.get_token();
1504                                         os << '"';
1505                                         skip_braces(p);
1506                                 } else {
1507                                         handle_ert(os, "\\char`", context);
1508                                 }
1509                         } else {
1510                                 handle_ert(os, "\\char", context);
1511                         }
1512                 }
1513
1514                 else if (t.cs() == "\"") {
1515                         context.check_layout(os);
1516                         string const name = p.verbatim_item();
1517                              if (name == "a") os << 'ä';
1518                         else if (name == "o") os << 'ö';
1519                         else if (name == "u") os << 'ü';
1520                         else if (name == "A") os << 'Ä';
1521                         else if (name == "O") os << 'Ö';
1522                         else if (name == "U") os << 'Ü';
1523                         else handle_ert(os, "\"{" + name + "}", context);
1524                 }
1525
1526                 // Problem: \= creates a tabstop inside the tabbing environment
1527                 // and else an accent. In the latter case we really would want
1528                 // \={o} instead of \= o.
1529                 else if (t.cs() == "=" && (flags & FLAG_TABBING))
1530                         handle_ert(os, t.asInput(), context);
1531
1532                 else if (t.cs() == "H" || t.cs() == "c" || t.cs() == "^" || t.cs() == "'"
1533                       || t.cs() == "~" || t.cs() == "." || t.cs() == "=") {
1534                         // we need the trim as the LyX parser chokes on such spaces
1535                         context.check_layout(os);
1536                         os << "\n\\i \\" << t.cs() << "{"
1537                            << trim(parse_text(p, FLAG_ITEM, outer, context), " ") << "}\n";
1538                 }
1539
1540                 else if (t.cs() == "ss") {
1541                         context.check_layout(os);
1542                         os << "ß";
1543                 }
1544
1545                 else if (t.cs() == "i" || t.cs() == "j") {
1546                         context.check_layout(os);
1547                         os << "\\" << t.cs() << ' ';
1548                 }
1549
1550                 else if (t.cs() == "\\") {
1551                         context.check_layout(os);
1552                         string const next = p.next_token().asInput();
1553                         if (next == "[")
1554                                 handle_ert(os, "\\\\" + p.getOpt(), context);
1555                         else if (next == "*") {
1556                                 p.get_token();
1557                                 handle_ert(os, "\\\\*" + p.getOpt(), context);
1558                         }
1559                         else {
1560                                 os << "\n\\newline \n";
1561                         }
1562                 }
1563
1564                 else if (t.cs() == "input" || t.cs() == "include"
1565                          || t.cs() == "verbatiminput") {
1566                         string name = '\\' + t.cs();
1567                         if (t.cs() == "verbatiminput"
1568                             && p.next_token().asInput() == "*")
1569                                 name += p.get_token().asInput();
1570                         context.check_layout(os);
1571                         begin_inset(os, "Include ");
1572                         string filename(p.getArg('{', '}'));
1573                         string lyxname(lyx::support::ChangeExtension(filename, ".lyx"));
1574                         if (tex2lyx(filename, lyxname)) {
1575                                 os << name << '{' << lyxname << "}\n";
1576                         } else {
1577                                 os << name << '{' << filename << "}\n";
1578                         }
1579                         os << "preview false\n";
1580                         end_inset(os);
1581                 }
1582
1583                 else if (t.cs() == "fancyhead") {
1584                         context.check_layout(os);
1585                         ostringstream ss;
1586                         ss << "\\fancyhead";
1587                         ss << p.getOpt();
1588                         ss << '{' << p.verbatim_item() << "}\n";
1589                         handle_ert(os, ss.str(), context);
1590                 }
1591
1592                 else if (t.cs() == "bibliographystyle") {
1593                         // store new bibliographystyle
1594                         bibliographystyle = p.verbatim_item();
1595                         // output new bibliographystyle.
1596                         // This is only necessary if used in some other macro than \bibliography.
1597                         handle_ert(os, "\\bibliographystyle{" + bibliographystyle + "}", context);
1598                 }
1599
1600                 else if (t.cs() == "bibliography") {
1601                         context.check_layout(os);
1602                         begin_inset(os, "LatexCommand ");
1603                         os << "\\bibtex";
1604                         // Do we have a bibliographystyle set?
1605                         if (!bibliographystyle.empty()) {
1606                                 os << '[' << bibliographystyle << ']';
1607                         }
1608                         os << '{' << p.verbatim_item() << "}\n";
1609                         end_inset(os);
1610                 }
1611
1612                 else if (t.cs() == "parbox")
1613                         parse_box(p, os, FLAG_ITEM, outer, context, true);
1614
1615                 else if (t.cs() == "smallskip" ||
1616                          t.cs() == "medskip" ||
1617                          t.cs() == "bigskip" ||
1618                          t.cs() == "vfill") {
1619                         context.check_layout(os);
1620                         begin_inset(os, "VSpace ");
1621                         os << t.cs();
1622                         end_inset(os);
1623                         skip_braces(p);
1624                 }
1625
1626                 else if (t.cs() == "vspace") {
1627                         bool starred = false;
1628                         if (p.next_token().asInput() == "*") {
1629                                 p.get_token();
1630                                 starred = true;
1631                         }
1632                         string const length = p.verbatim_item();
1633                         string unit;
1634                         string valstring;
1635                         bool valid = splitLatexLength(length, valstring, unit);
1636                         bool known_vspace = false;
1637                         bool known_unit = false;
1638                         double value;
1639                         if (valid) {
1640                                 istringstream iss(valstring);
1641                                 iss >> value;
1642                                 if (value == 1.0) {
1643                                         if (unit == "\\smallskipamount") {
1644                                                 unit = "smallskip";
1645                                                 known_vspace = true;
1646                                         } else if (unit == "\\medskipamount") {
1647                                                 unit = "medskip";
1648                                                 known_vspace = true;
1649                                         } else if (unit == "\\bigskipamount") {
1650                                                 unit = "bigskip";
1651                                                 known_vspace = true;
1652                                         } else if (unit == "\\fill") {
1653                                                 unit = "vfill";
1654                                                 known_vspace = true;
1655                                         }
1656                                 }
1657                                 if (!known_vspace) {
1658                                         switch (unitFromString(unit)) {
1659                                         case LyXLength::SP:
1660                                         case LyXLength::PT:
1661                                         case LyXLength::BP:
1662                                         case LyXLength::DD:
1663                                         case LyXLength::MM:
1664                                         case LyXLength::PC:
1665                                         case LyXLength::CC:
1666                                         case LyXLength::CM:
1667                                         case LyXLength::IN:
1668                                         case LyXLength::EX:
1669                                         case LyXLength::EM:
1670                                         case LyXLength::MU:
1671                                                 known_unit = true;
1672                                                 break;
1673                                         default:
1674                                                 break;
1675                                         }
1676                                 }
1677                         }
1678
1679                         if (known_unit || known_vspace) {
1680                                 // Literal length or known variable
1681                                 context.check_layout(os);
1682                                 begin_inset(os, "VSpace ");
1683                                 if (known_unit)
1684                                         os << value;
1685                                 os << unit;
1686                                 if (starred)
1687                                         os << '*';
1688                                 end_inset(os);
1689                         } else {
1690                                 // LyX can't handle other length variables in Inset VSpace
1691                                 string name = t.asInput();
1692                                 if (starred)
1693                                         name += '*';
1694                                 if (valid) {
1695                                         if (value == 1.0)
1696                                                 handle_ert(os, name + '{' + unit + '}', context);
1697                                         else if (value == -1.0)
1698                                                 handle_ert(os, name + "{-" + unit + '}', context);
1699                                         else
1700                                                 handle_ert(os, name + '{' + valstring + unit + '}', context);
1701                                 } else
1702                                         handle_ert(os, name + '{' + length + '}', context);
1703                         }
1704                 }
1705
1706                 else {
1707                         //cerr << "#: " << t << " mode: " << mode << endl;
1708                         // heuristic: read up to next non-nested space
1709                         /*
1710                         string s = t.asInput();
1711                         string z = p.verbatim_item();
1712                         while (p.good() && z != " " && z.size()) {
1713                                 //cerr << "read: " << z << endl;
1714                                 s += z;
1715                                 z = p.verbatim_item();
1716                         }
1717                         cerr << "found ERT: " << s << endl;
1718                         handle_ert(os, s + ' ', context);
1719                         */
1720                         string name = t.asInput();
1721                         if (p.next_token().asInput() == "*") {
1722                                 // Starred commands like \vspace*{}
1723                                 p.get_token();                          // Eat '*'
1724                                 name += '*';
1725                         }
1726                         if (! parse_command(name, p, os, outer, context))
1727                                 handle_ert(os, name, context);
1728                 }
1729
1730                 if (flags & FLAG_LEAVE) {
1731                         flags &= ~FLAG_LEAVE;
1732                         break;
1733                 }
1734         }
1735 }
1736
1737
1738 // }])