src/insets/InsetLayout.cpp

   1 // -*- C++ -*-
   2 /**
   3  * \file InsetLayout.cpp
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author Martin Vermeer
   8  * \author Richard Heck
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #include <config.h>
  14
  15 #include "InsetLayout.h"
  16
  17 #include "ColorSet.h"
  18 #include "Layout.h"
  19 #include "Lexer.h"
  20 #include "TextClass.h"
  21
  22 #include "support/debug.h"
  23 #include "support/lstrings.h"
  24 #include "support/textutils.h"
  25
  26 #include <vector>
  27
  28 using std::string;
  29 using std::set;
  30 using std::vector;
  31
  32 namespace lyx {
  33
  34 InsetLayout::InsetLayout() :
  35         name_(from_ascii("undefined")), lyxtype_(STANDARD),
  36         labelstring_(from_ascii("UNDEFINED")), contentaslabel_(false),
  37         decoration_(DEFAULT), latextype_(NOLATEXTYPE), font_(inherit_font),
  38         labelfont_(sane_font), bgcolor_(Color_error),
  39         htmlforcecss_ (false), htmlisblock_(true),
  40         multipar_(true), custompars_(true), forceplain_(false),
  41         passthru_(false), parbreakisnewline_(false), freespacing_(false),
  42         keepempty_(false), forceltr_(false),
  43         needprotect_(false), intoc_(false), spellcheck_(true),
  44         resetsfont_(false), display_(true), forcelocalfontswitch_(false)
  45 {
  46         labelfont_.setColor(Color_error);
  47 }
  48
  49
  50 InsetLayout::InsetDecoration translateDecoration(std::string const & str)
  51 {
  52         if (support::compare_ascii_no_case(str, "classic") == 0)
  53                 return InsetLayout::CLASSIC;
  54         if (support::compare_ascii_no_case(str, "minimalistic") == 0)
  55                 return InsetLayout::MINIMALISTIC;
  56         if (support::compare_ascii_no_case(str, "conglomerate") == 0)
  57                 return InsetLayout::CONGLOMERATE;
  58         return InsetLayout::DEFAULT;
  59 }
  60
  61 namespace {
  62
  63 InsetLayout::InsetLaTeXType translateLaTeXType(std::string const & str)
  64 {
  65         if (support::compare_ascii_no_case(str, "command") == 0)
  66                 return InsetLayout::COMMAND;
  67         if (support::compare_ascii_no_case(str, "environment") == 0)
  68                 return InsetLayout::ENVIRONMENT;
  69         if (support::compare_ascii_no_case(str, "none") == 0)
  70                 return InsetLayout::NOLATEXTYPE;
  71         return InsetLayout::ILT_ERROR;
  72 }
  73
  74 } // namespace anon
  75
  76
  77 bool InsetLayout::read(Lexer & lex, TextClass const & tclass)
  78 {
  79         enum {
  80                 IL_ARGUMENT,
  81                 IL_BABELPREAMBLE,
  82                 IL_BGCOLOR,
  83                 IL_CONTENTASLABEL,
  84                 IL_COPYSTYLE,
  85                 IL_COUNTER,
  86                 IL_CUSTOMPARS,
  87                 IL_DECORATION,
  88                 IL_DISPLAY,
  89                 IL_FONT,
  90                 IL_FORCE_LOCAL_FONT_SWITCH,
  91                 IL_FORCELTR,
  92                 IL_FORCEOWNLINES,
  93                 IL_FORCEPLAIN,
  94                 IL_FREESPACING,
  95                 IL_HTMLTAG,
  96                 IL_HTMLATTR,
  97                 IL_HTMLFORCECSS,
  98                 IL_HTMLINNERTAG,
  99                 IL_HTMLINNERATTR,
 100                 IL_HTMLISBLOCK,
 101                 IL_HTMLLABEL,
 102                 IL_HTMLSTYLE,
 103                 IL_HTMLPREAMBLE,
 104                 IL_INTOC,
 105                 IL_LABELFONT,
 106                 IL_LABELSTRING,
 107                 IL_LANGPREAMBLE,
 108                 IL_LATEXNAME,
 109                 IL_LATEXPARAM,
 110                 IL_LATEXTYPE,
 111                 IL_LEFTDELIM,
 112                 IL_LYXTYPE,
 113                 IL_OBSOLETEDBY,
 114                 IL_KEEPEMPTY,
 115                 IL_MULTIPAR,
 116                 IL_NEEDPROTECT,
 117                 IL_PASSTHRU,
 118                 IL_PARBREAKISNEWLINE,
 119                 IL_PREAMBLE,
 120                 IL_REQUIRES,
 121                 IL_RIGHTDELIM,
 122                 IL_REFPREFIX,
 123                 IL_RESETARGS,
 124                 IL_RESETSFONT,
 125                 IL_SPELLCHECK,
 126                 IL_END
 127         };
 128
 129
 130         LexerKeyword elementTags[] = {
 131                 { "argument", IL_ARGUMENT },
 132                 { "babelpreamble", IL_BABELPREAMBLE },
 133                 { "bgcolor", IL_BGCOLOR },
 134                 { "contentaslabel", IL_CONTENTASLABEL },
 135                 { "copystyle", IL_COPYSTYLE },
 136                 { "counter", IL_COUNTER},
 137                 { "custompars", IL_CUSTOMPARS },
 138                 { "decoration", IL_DECORATION },
 139                 { "display", IL_DISPLAY },
 140                 { "end", IL_END },
 141                 { "font", IL_FONT },
 142                 { "forcelocalfontswitch", IL_FORCE_LOCAL_FONT_SWITCH },
 143                 { "forceltr", IL_FORCELTR },
 144                 { "forceownlines", IL_FORCEOWNLINES },
 145                 { "forceplain", IL_FORCEPLAIN },
 146                 { "freespacing", IL_FREESPACING },
 147                 { "htmlattr", IL_HTMLATTR },
 148                 { "htmlforcecss", IL_HTMLFORCECSS },
 149                 { "htmlinnerattr", IL_HTMLINNERATTR},
 150                 { "htmlinnertag", IL_HTMLINNERTAG},
 151                 { "htmlisblock", IL_HTMLISBLOCK},
 152                 { "htmllabel", IL_HTMLLABEL },
 153                 { "htmlpreamble", IL_HTMLPREAMBLE },
 154                 { "htmlstyle", IL_HTMLSTYLE },
 155                 { "htmltag", IL_HTMLTAG },
 156                 { "intoc", IL_INTOC },
 157                 { "keepempty", IL_KEEPEMPTY },
 158                 { "labelfont", IL_LABELFONT },
 159                 { "labelstring", IL_LABELSTRING },
 160                 { "langpreamble", IL_LANGPREAMBLE },
 161                 { "latexname", IL_LATEXNAME },
 162                 { "latexparam", IL_LATEXPARAM },
 163                 { "latextype", IL_LATEXTYPE },
 164                 { "leftdelim", IL_LEFTDELIM },
 165                 { "lyxtype", IL_LYXTYPE },
 166                 { "multipar", IL_MULTIPAR },
 167                 { "needprotect", IL_NEEDPROTECT },
 168                 { "obsoletedby", IL_OBSOLETEDBY },
 169                 { "parbreakisnewline", IL_PARBREAKISNEWLINE },
 170                 { "passthru", IL_PASSTHRU },
 171                 { "preamble", IL_PREAMBLE },
 172                 { "refprefix", IL_REFPREFIX },
 173                 { "requires", IL_REQUIRES },
 174                 { "resetargs", IL_RESETARGS },
 175                 { "resetsfont", IL_RESETSFONT },
 176                 { "rightdelim", IL_RIGHTDELIM },
 177                 { "spellcheck", IL_SPELLCHECK }
 178         };
 179
 180         lex.pushTable(elementTags);
 181
 182         labelfont_ = inherit_font;
 183         bgcolor_ = Color_none;
 184         bool getout = false;
 185         // whether we've read the CustomPars or ForcePlain tag
 186         // for issuing a warning in case MultiPars comes later
 187         bool readCustomOrPlain = false;
 188
 189         string tmp;
 190         while (!getout && lex.isOK()) {
 191                 int le = lex.lex();
 192                 switch (le) {
 193                 case Lexer::LEX_UNDEF:
 194                         lex.printError("Unknown InsetLayout tag");
 195                         continue;
 196                 default:
 197                         break;
 198                 }
 199                 switch (le) {
 200                 // FIXME
 201                 // Perhaps a more elegant way to deal with the next two would be the
 202                 // way this sort of thing is handled in Layout::read(), namely, by
 203                 // using the Lexer.
 204                 case IL_LYXTYPE: {
 205                         // make sure that we have the right sort of name.
 206                         if (name_ != from_ascii("undefined")
 207                             && name_.substr(0,5) != from_ascii("Flex:")) {
 208                                 LYXERR0("Flex insets must have names of the form `Flex:<name>'.\n"
 209                                         "This one has the name `" << to_utf8(name_) << "'\n"
 210                                         "Ignoring LyXType declaration.");
 211                                 break;
 212                         }
 213                         string lt;
 214                         lex >> lt;
 215                         lyxtype_ = translateLyXType(lt);
 216                         if (lyxtype_  == NOLYXTYPE)
 217                                 LYXERR0("Unknown LyXType `" << lt << "'.");
 218                         if (lyxtype_ == CHARSTYLE)
 219                                 multipar_ = false;
 220                         break;
 221                 }
 222                 case IL_LATEXTYPE:  {
 223                         string lt;
 224                         lex >> lt;
 225                         latextype_ = translateLaTeXType(lt);
 226                         if (latextype_  == ILT_ERROR)
 227                                 LYXERR0("Unknown LaTeXType `" << lt << "'.");
 228                         break;
 229                 }
 230                 case IL_LABELSTRING:
 231                         lex >> labelstring_;
 232                         break;
 233                 case IL_DECORATION:
 234                         lex >> tmp;
 235                         decoration_ = translateDecoration(tmp);
 236                         break;
 237                 case IL_LATEXNAME:
 238                         lex >> latexname_;
 239                         break;
 240                 case IL_LATEXPARAM:
 241                         lex >> tmp;
 242                         latexparam_ = support::subst(tmp, "&quot;", "\"");
 243                         break;
 244                 case IL_LEFTDELIM:
 245                         lex >> leftdelim_;
 246                         leftdelim_ = support::subst(leftdelim_, from_ascii("<br/>"),
 247                                                     from_ascii("\n"));
 248                         break;
 249                 case IL_FORCE_LOCAL_FONT_SWITCH:
 250                         lex >> forcelocalfontswitch_;
 251                         break;
 252                 case IL_RIGHTDELIM:
 253                         lex >> rightdelim_;
 254                         rightdelim_ = support::subst(rightdelim_, from_ascii("<br/>"),
 255                                                      from_ascii("\n"));
 256                         break;
 257                 case IL_LABELFONT:
 258                         labelfont_ = lyxRead(lex, inherit_font);
 259                         break;
 260                 case IL_FORCELTR:
 261                         lex >> forceltr_;
 262                         break;
 263                 case IL_FORCEOWNLINES:
 264                         lex >> forceownlines_;
 265                         break;
 266                 case IL_INTOC:
 267                         lex >> intoc_;
 268                         break;
 269                 case IL_MULTIPAR:
 270                         lex >> multipar_;
 271                         // the defaults for these depend upon multipar_
 272                         if (readCustomOrPlain)
 273                                 LYXERR0("Warning: Read MultiPar after CustomPars or ForcePlain. "
 274                                         "Previous value may be overwritten!");
 275                         readCustomOrPlain = false;
 276                         custompars_ = multipar_;
 277                         forceplain_ = !multipar_;
 278                         break;
 279                 case IL_COUNTER:
 280                         lex >> counter_;
 281                         break;
 282                 case IL_CUSTOMPARS:
 283                         lex >> custompars_;
 284                         readCustomOrPlain = true;
 285                         break;
 286                 case IL_FORCEPLAIN:
 287                         lex >> forceplain_;
 288                         readCustomOrPlain = true;
 289                         break;
 290                 case IL_PASSTHRU:
 291                         lex >> passthru_;
 292                         break;
 293                 case IL_PARBREAKISNEWLINE:
 294                         lex >> parbreakisnewline_;
 295                         break;
 296                 case IL_KEEPEMPTY:
 297                         lex >> keepempty_;
 298                         break;
 299                 case IL_FREESPACING:
 300                         lex >> freespacing_;
 301                         break;
 302                 case IL_NEEDPROTECT:
 303                         lex >> needprotect_;
 304                         break;
 305                 case IL_CONTENTASLABEL:
 306                         lex >> contentaslabel_;
 307                         break;
 308                 case IL_COPYSTYLE: {
 309                         // initialize with a known style
 310                         docstring style;
 311                         lex >> style;
 312                         style = support::subst(style, '_', ' ');
 313
 314                         // We don't want to apply the algorithm in DocumentClass::insetLayout()
 315                         // here. So we do it the long way.
 316                         TextClass::InsetLayouts::const_iterator it =
 317                                         tclass.insetLayouts().find(style);
 318                         if (it != tclass.insetLayouts().end()) {
 319                                 docstring const tmpname = name_;
 320                                 this->operator=(it->second);
 321                                 name_ = tmpname;
 322                         } else {
 323                                 LYXERR0("Cannot copy unknown InsetLayout `"
 324                                         << style << "'\n"
 325                                         << "All InsetLayouts so far:");
 326                                 TextClass::InsetLayouts::const_iterator lit =
 327                                                 tclass.insetLayouts().begin();
 328                                 TextClass::InsetLayouts::const_iterator len =
 329                                                 tclass.insetLayouts().end();
 330                                 for (; lit != len; ++lit)
 331                                         lyxerr << lit->second.name() << "\n";
 332                         }
 333                         break;
 334                 }
 335                 case IL_OBSOLETEDBY: {
 336                         docstring style;
 337                         lex >> style;
 338                         style = support::subst(style, '_', ' ');
 339
 340                         // We don't want to apply the algorithm in DocumentClass::insetLayout()
 341                         // here. So we do it the long way.
 342                         TextClass::InsetLayouts::const_iterator it =
 343                                         tclass.insetLayouts().find(style);
 344                         if (it != tclass.insetLayouts().end()) {
 345                                 docstring const tmpname = name_;
 346                                 this->operator=(it->second);
 347                                 name_ = tmpname;
 348                                 if (obsoleted_by().empty())
 349                                         obsoleted_by_ = style;
 350                         } else {
 351                                 LYXERR0("Cannot replace with unknown InsetLayout `"
 352                                         << style << '\'');
 353                         }
 354                         break;
 355                 }
 356
 357                 case IL_FONT: {
 358                         font_ = lyxRead(lex, inherit_font);
 359                         // If you want to define labelfont, you need to do so after
 360                         // font is defined.
 361                         labelfont_ = font_;
 362                         break;
 363                 }
 364                 case IL_RESETARGS:
 365                         bool reset;
 366                         lex >> reset;
 367                         if (reset) {
 368                                 latexargs_.clear();
 369                                 postcommandargs_.clear();
 370                         }
 371                         break;
 372                 case IL_ARGUMENT:
 373                         readArgument(lex);
 374                         break;
 375                 case IL_BGCOLOR:
 376                         lex >> tmp;
 377                         bgcolor_ = lcolor.getFromLyXName(tmp);
 378                         break;
 379                 case IL_PREAMBLE:
 380                         preamble_ = from_utf8(lex.getLongString("EndPreamble"));
 381                         break;
 382                 case IL_BABELPREAMBLE:
 383                         babelpreamble_ = from_utf8(lex.getLongString("EndBabelPreamble"));
 384                         break;
 385                 case IL_LANGPREAMBLE:
 386                         langpreamble_ = from_utf8(lex.getLongString("EndLangPreamble"));
 387                         break;
 388                 case IL_REFPREFIX:
 389                         lex >> refprefix_;
 390                         break;
 391                 case IL_HTMLTAG:
 392                         lex >> htmltag_;
 393                         break;
 394                 case IL_HTMLATTR:
 395                         lex >> htmlattr_;
 396                         break;
 397                 case IL_HTMLFORCECSS:
 398                         lex >> htmlforcecss_;
 399                         break;
 400                 case IL_HTMLINNERTAG:
 401                         lex >> htmlinnertag_;
 402                         break;
 403                 case IL_HTMLINNERATTR:
 404                         lex >> htmlinnerattr_;
 405                         break;
 406                 case IL_HTMLLABEL:
 407                         lex >> htmllabel_;
 408                         break;
 409                 case IL_HTMLISBLOCK:
 410                         lex >> htmlisblock_;
 411                         break;
 412                 case IL_HTMLSTYLE:
 413                         htmlstyle_ = from_utf8(lex.getLongString("EndHTMLStyle"));
 414                         break;
 415                 case IL_HTMLPREAMBLE:
 416                         htmlpreamble_ = from_utf8(lex.getLongString("EndPreamble"));
 417                         break;
 418                 case IL_REQUIRES: {
 419                         lex.eatLine();
 420                         vector<string> const req
 421                                 = support::getVectorFromString(lex.getString());
 422                         requires_.insert(req.begin(), req.end());
 423                         break;
 424                 }
 425                 case IL_SPELLCHECK:
 426                         lex >> spellcheck_;
 427                         break;
 428                 case IL_RESETSFONT:
 429                         lex >> resetsfont_;
 430                         break;
 431                 case IL_DISPLAY:
 432                         lex >> display_;
 433                         break;
 434                 case IL_END:
 435                         getout = true;
 436                         break;
 437                 }
 438         }
 439
 440         // Here add element to list if getout == true
 441         if (!getout)
 442                 return false;
 443
 444         // The label font is generally used as-is without
 445         // any realization against a given context.
 446         labelfont_.realize(sane_font);
 447
 448         lex.popTable();
 449         return true;
 450 }
 451
 452
 453 InsetLayout::InsetLyXType translateLyXType(std::string const & str)
 454 {
 455
 456         if (support::compare_ascii_no_case(str, "charstyle") == 0)
 457                 return InsetLayout::CHARSTYLE;
 458         if (support::compare_ascii_no_case(str, "custom") == 0)
 459                 return InsetLayout::CUSTOM;
 460         if (support::compare_ascii_no_case(str, "element") == 0)
 461                 return InsetLayout::ELEMENT;
 462         if (support::compare_ascii_no_case(str, "end") == 0)
 463                 return InsetLayout::END;
 464         if (support::compare_ascii_no_case(str, "standard") == 0)
 465                 return InsetLayout::STANDARD;
 466         return InsetLayout::NOLYXTYPE;
 467 }
 468
 469
 470 string const & InsetLayout::htmltag() const
 471 {
 472         if (htmltag_.empty())
 473                 htmltag_ = multipar_ ? "div" : "span";
 474         return htmltag_;
 475 }
 476
 477
 478 string const & InsetLayout::htmlattr() const
 479 {
 480         if (htmlattr_.empty())
 481                 htmlattr_ = "class=\"" + defaultCSSClass() + "\"";
 482         return htmlattr_;
 483 }
 484
 485
 486 string const & InsetLayout::htmlinnerattr() const
 487 {
 488         if (htmlinnerattr_.empty())
 489                 htmlinnerattr_ = "class=\"" + defaultCSSClass() + "_inner\"";
 490         return htmlinnerattr_;
 491 }
 492
 493
 494 string InsetLayout::defaultCSSClass() const
 495 {
 496         if (!defaultcssclass_.empty())
 497                 return defaultcssclass_;
 498         string d;
 499         string n = to_utf8(name());
 500         string::const_iterator it = n.begin();
 501         string::const_iterator en = n.end();
 502         for (; it != en; ++it) {
 503                 if (!isAlphaASCII(*it))
 504                         d += "_";
 505                 else if (isLower(*it))
 506                         d += *it;
 507                 else
 508                         d += support::lowercase(*it);
 509         }
 510         // are there other characters we need to remove?
 511         defaultcssclass_ = d;
 512         return defaultcssclass_;
 513 }
 514
 515
 516 void InsetLayout::makeDefaultCSS() const
 517 {
 518         if (!htmldefaultstyle_.empty())
 519                 return;
 520         docstring const mainfontCSS = font_.asCSS();
 521         if (!mainfontCSS.empty())
 522                 htmldefaultstyle_ =
 523                                 from_ascii(htmltag() + "." + defaultCSSClass() + " {\n") +
 524                                 mainfontCSS + from_ascii("\n}\n");
 525 }
 526
 527
 528 docstring InsetLayout::htmlstyle() const
 529 {
 530         if (!htmlstyle_.empty() && !htmlforcecss_)
 531                 return htmlstyle_;
 532         if (htmldefaultstyle_.empty())
 533                 makeDefaultCSS();
 534         docstring retval = htmldefaultstyle_;
 535         if (!htmlstyle_.empty())
 536                 retval += '\n' + htmlstyle_ + '\n';
 537         return retval;
 538 }
 539
 540 void InsetLayout::readArgument(Lexer & lex)
 541 {
 542         Layout::latexarg arg;
 543         arg.mandatory = false;
 544         arg.autoinsert = false;
 545         bool error = false;
 546         bool finished = false;
 547         arg.font = inherit_font;
 548         arg.labelfont = inherit_font;
 549         string nr;
 550         lex >> nr;
 551         bool const postcmd = support::prefixIs(nr, "post:");
 552         while (!finished && lex.isOK() && !error) {
 553                 lex.next();
 554                 string const tok = support::ascii_lowercase(lex.getString());
 555
 556                 if (tok.empty()) {
 557                         continue;
 558                 } else if (tok == "endargument") {
 559                         finished = true;
 560                 } else if (tok == "labelstring") {
 561                         lex.next();
 562                         arg.labelstring = lex.getDocString();
 563                 } else if (tok == "menustring") {
 564                         lex.next();
 565                         arg.menustring = lex.getDocString();
 566                 } else if (tok == "mandatory") {
 567                         lex.next();
 568                         arg.mandatory = lex.getBool();
 569                 } else if (tok == "autoinsert") {
 570                         lex.next();
 571                         arg.autoinsert = lex.getBool();
 572                 } else if (tok == "leftdelim") {
 573                         lex.next();
 574                         arg.ldelim = lex.getDocString();
 575                         arg.ldelim = support::subst(arg.ldelim,
 576                                                     from_ascii("<br/>"), from_ascii("\n"));
 577                 } else if (tok == "rightdelim") {
 578                         lex.next();
 579                         arg.rdelim = lex.getDocString();
 580                         arg.rdelim = support::subst(arg.rdelim,
 581                                                     from_ascii("<br/>"), from_ascii("\n"));
 582                 } else if (tok == "defaultarg") {
 583                         lex.next();
 584                         arg.defaultarg = lex.getDocString();
 585                 } else if (tok == "presetarg") {
 586                         lex.next();
 587                         arg.presetarg = lex.getDocString();
 588                 } else if (tok == "tooltip") {
 589                         lex.next();
 590                         arg.tooltip = lex.getDocString();
 591                 } else if (tok == "requires") {
 592                         lex.next();
 593                         arg.requires = lex.getString();
 594                 } else if (tok == "decoration") {
 595                         lex.next();
 596                         arg.decoration = lex.getString();
 597                 } else if (tok == "font") {
 598                         arg.font = lyxRead(lex, arg.font);
 599                 } else if (tok == "labelfont") {
 600                         arg.labelfont = lyxRead(lex, arg.labelfont);
 601                 } else {
 602                         lex.printError("Unknown tag");
 603                         error = true;
 604                 }
 605         }
 606         if (arg.labelstring.empty())
 607                 LYXERR0("Incomplete Argument definition!");
 608         else if (postcmd)
 609                 postcommandargs_[nr] = arg;
 610         else
 611                 latexargs_[nr] = arg;
 612 }
 613
 614
 615 Layout::LaTeXArgMap InsetLayout::args() const
 616 {
 617         Layout::LaTeXArgMap args = latexargs_;
 618         if (!postcommandargs_.empty())
 619                 args.insert(postcommandargs_.begin(), postcommandargs_.end());
 620         return args;
 621 }
 622
 623
 624 unsigned int InsetLayout::optArgs() const
 625 {
 626         unsigned int nr = 0;
 627         Layout::LaTeXArgMap const args = InsetLayout::args();
 628         Layout::LaTeXArgMap::const_iterator it = args.begin();
 629         for (; it != args.end(); ++it) {
 630                 if (!(*it).second.mandatory)
 631                         ++nr;
 632         }
 633         return nr;
 634 }
 635
 636
 637 unsigned int InsetLayout::requiredArgs() const
 638 {
 639         unsigned int nr = 0;
 640         Layout::LaTeXArgMap const args = InsetLayout::args();
 641         Layout::LaTeXArgMap::const_iterator it = args.begin();
 642         for (; it != args.end(); ++it) {
 643                 if ((*it).second.mandatory)
 644                         ++nr;
 645         }
 646         return nr;
 647 }
 648
 649
 650 } //namespace lyx