src/paragraph_pimpl.C

   1 /**
   2  * \file paragraph_pimpl.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author Jean-Marc Lasgouttes
   8  * \author John Levon
   9  * \author André Pönitz
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #include <config.h>
  15
  16 #include "paragraph_pimpl.h"
  17
  18 #include "bufferparams.h"
  19 #include "debug.h"
  20 #include "encoding.h"
  21 #include "language.h"
  22 #include "LaTeXFeatures.h"
  23 #include "latexrunparams.h"
  24 #include "LColor.h"
  25 #include "lyxlength.h"
  26 #include "lyxrc.h"
  27 #include "texrow.h"
  28
  29
  30 using lyx::pos_type;
  31
  32 using std::endl;
  33 using std::upper_bound;
  34
  35 using std::ostream;
  36
  37
  38 // Initialize static member.
  39 ShareContainer<LyXFont> Paragraph::Pimpl::FontTable::container;
  40 // Initialization of the counter for the paragraph id's,
  41 unsigned int Paragraph::Pimpl::paragraph_id = 0;
  42
  43 namespace {
  44
  45 struct special_phrase {
  46         string phrase;
  47         string macro;
  48         bool builtin;
  49 };
  50
  51 special_phrase special_phrases[] = {
  52         { "LyX", "\\LyX{}", false },
  53         { "TeX", "\\TeX{}", true },
  54         { "LaTeX2e", "\\LaTeXe{}", true },
  55         { "LaTeX", "\\LaTeX{}", true },
  56 };
  57
  58 size_t const phrases_nr = sizeof(special_phrases)/sizeof(special_phrase);
  59
  60 } // namespace anon
  61
  62
  63 Paragraph::Pimpl::Pimpl(Paragraph * owner)
  64         : owner_(owner)
  65 {
  66         inset_owner = 0;
  67         id_ = paragraph_id++;
  68 }
  69
  70
  71 Paragraph::Pimpl::Pimpl(Pimpl const & p, Paragraph * owner)
  72         : params(p.params), owner_(owner)
  73 {
  74         inset_owner = p.inset_owner;
  75         fontlist = p.fontlist;
  76         id_ = paragraph_id++;
  77
  78         if (p.tracking())
  79                 changes_.reset(new Changes(*p.changes_.get()));
  80 }
  81
  82
  83 void Paragraph::Pimpl::setContentsFromPar(Paragraph const & par)
  84 {
  85         owner_->text_ = par.text_;
  86         if (par.pimpl_->tracking()) {
  87                 changes_.reset(new Changes(*(par.pimpl_->changes_.get())));
  88         }
  89 }
  90
  91
  92 void Paragraph::Pimpl::trackChanges(Change::Type type)
  93 {
  94         if (tracking()) {
  95                 lyxerr[Debug::CHANGES] << "already tracking for par " << id_ << endl;
  96                 return;
  97         }
  98
  99         lyxerr[Debug::CHANGES] << "track changes for par "
 100                 << id_ << " type " << type << endl;
 101         changes_.reset(new Changes(type));
 102         changes_->set(type, 0, size());
 103 }
 104
 105
 106 void Paragraph::Pimpl::untrackChanges()
 107 {
 108         changes_.reset(0);
 109 }
 110
 111
 112 void Paragraph::Pimpl::cleanChanges()
 113 {
 114         // if we're not tracking, we don't want to reset...
 115         if (!tracking())
 116                 return;
 117
 118         changes_.reset(new Changes(Change::INSERTED));
 119         changes_->set(Change::INSERTED, 0, size());
 120 }
 121
 122
 123 bool Paragraph::Pimpl::isChanged(pos_type start, pos_type end) const
 124 {
 125         if (!tracking())
 126                 return false;
 127
 128         return changes_->isChange(start, end);
 129 }
 130
 131
 132 bool Paragraph::Pimpl::isChangeEdited(pos_type start, pos_type end) const
 133 {
 134         if (!tracking())
 135                 return false;
 136
 137         return changes_->isChangeEdited(start, end);
 138 }
 139
 140
 141 void Paragraph::Pimpl::setChange(pos_type pos, Change::Type type)
 142 {
 143         if (!tracking())
 144                 return;
 145
 146         changes_->set(type, pos);
 147 }
 148
 149
 150 Change::Type Paragraph::Pimpl::lookupChange(pos_type pos) const
 151 {
 152         if (!tracking())
 153                 return Change::UNCHANGED;
 154
 155         return changes_->lookup(pos);
 156 }
 157
 158
 159 Change const Paragraph::Pimpl::lookupChangeFull(pos_type pos) const
 160 {
 161         if (!tracking())
 162                 return Change(Change::UNCHANGED);
 163
 164         return changes_->lookupFull(pos);
 165 }
 166
 167
 168 void Paragraph::Pimpl::markErased()
 169 {
 170         BOOST_ASSERT(tracking());
 171
 172         // FIXME: we should actually remove INSERTED chars.
 173         // difficult because owning insettexts/tabulars need
 174         // to update themselves when rows etc. change
 175         changes_->set(Change::DELETED, 0, size());
 176         changes_->reset(Change::DELETED);
 177 }
 178
 179
 180 void Paragraph::Pimpl::acceptChange(pos_type start, pos_type end)
 181 {
 182         if (!tracking())
 183                 return;
 184
 185         if (!size()) {
 186                 changes_.reset(new Changes(Change::UNCHANGED));
 187                 return;
 188         }
 189
 190         lyxerr << "acceptchange" << endl;
 191         pos_type i = start;
 192
 193         for (; i < end; ++i) {
 194                 switch (lookupChange(i)) {
 195                         case Change::UNCHANGED:
 196                                 break;
 197
 198                         case Change::INSERTED:
 199                                 changes_->set(Change::UNCHANGED, i);
 200                                 break;
 201
 202                         case Change::DELETED:
 203                                 eraseIntern(i);
 204                                 changes_->erase(i);
 205                                 --end;
 206                                 --i;
 207                                 break;
 208                 }
 209         }
 210
 211         lyxerr << "endacceptchange" << endl;
 212         changes_->reset(Change::UNCHANGED);
 213 }
 214
 215
 216 void Paragraph::Pimpl::rejectChange(pos_type start, pos_type end)
 217 {
 218         if (!tracking())
 219                 return;
 220
 221         if (!size()) {
 222                 changes_.reset(new Changes(Change::UNCHANGED));
 223                 return;
 224         }
 225
 226         pos_type i = start;
 227
 228         for (; i < end; ++i) {
 229                 switch (lookupChange(i)) {
 230                         case Change::UNCHANGED:
 231                                 break;
 232
 233                         case Change::INSERTED:
 234                                 eraseIntern(i);
 235                                 changes_->erase(i);
 236                                 --end;
 237                                 --i;
 238                                 break;
 239
 240                         case Change::DELETED:
 241                                 changes_->set(Change::UNCHANGED, i);
 242                                 break;
 243                 }
 244         }
 245         changes_->reset(Change::UNCHANGED);
 246 }
 247
 248
 249 Paragraph::value_type Paragraph::Pimpl::getChar(pos_type pos) const
 250 {
 251         return owner_->getChar(pos);
 252 }
 253
 254
 255 void Paragraph::Pimpl::insertChar(pos_type pos, value_type c,
 256                                   LyXFont const & font, Change change)
 257 {
 258         BOOST_ASSERT(pos <= size());
 259
 260         if (tracking()) {
 261                 changes_->record(change, pos);
 262         }
 263
 264         // This is actually very common when parsing buffers (and
 265         // maybe inserting ascii text)
 266         if (pos == size()) {
 267                 // when appending characters, no need to update tables
 268                 owner_->text_.push_back(c);
 269                 owner_->setFont(pos, font);
 270                 return;
 271         }
 272
 273         owner_->text_.insert(owner_->text_.begin() + pos, c);
 274
 275         // Update the font table.
 276         FontTable search_font(pos, LyXFont());
 277         for (FontList::iterator it = lower_bound(fontlist.begin(),
 278                                                       fontlist.end(),
 279                                                       search_font, matchFT());
 280              it != fontlist.end(); ++it)
 281         {
 282                 it->pos(it->pos() + 1);
 283         }
 284
 285         // Update the insets
 286         owner_->insetlist.increasePosAfterPos(pos);
 287
 288         owner_->setFont(pos, font);
 289 }
 290
 291
 292 void Paragraph::Pimpl::insertInset(pos_type pos,
 293                                    InsetOld * inset, LyXFont const & font, Change change)
 294 {
 295         BOOST_ASSERT(inset);
 296         BOOST_ASSERT(pos <= size());
 297
 298         insertChar(pos, META_INSET, font, change);
 299         BOOST_ASSERT(owner_->text_[pos] == META_INSET);
 300
 301         // Add a new entry in the insetlist.
 302         owner_->insetlist.insert(inset, pos);
 303
 304         if (inset_owner)
 305                 inset->setOwner(inset_owner);
 306 }
 307
 308
 309 void Paragraph::Pimpl::eraseIntern(pos_type pos)
 310 {
 311         // if it is an inset, delete the inset entry
 312         if (owner_->text_[pos] == Paragraph::META_INSET) {
 313                 owner_->insetlist.erase(pos);
 314         }
 315
 316         owner_->text_.erase(owner_->text_.begin() + pos);
 317
 318         // Erase entries in the tables.
 319         FontTable search_font(pos, LyXFont());
 320
 321         FontList::iterator it =
 322                 lower_bound(fontlist.begin(),
 323                             fontlist.end(),
 324                             search_font, matchFT());
 325         if (it != fontlist.end() && it->pos() == pos &&
 326             (pos == 0 ||
 327              (it != fontlist.begin()
 328               && boost::prior(it)->pos() == pos - 1))) {
 329                 // If it is a multi-character font
 330                 // entry, we just make it smaller
 331                 // (see update below), otherwise we
 332                 // should delete it.
 333                 unsigned int const i = it - fontlist.begin();
 334                 fontlist.erase(fontlist.begin() + i);
 335                 it = fontlist.begin() + i;
 336                 if (i > 0 && i < fontlist.size() &&
 337                     fontlist[i - 1].font() == fontlist[i].font()) {
 338                         fontlist.erase(fontlist.begin() + i - 1);
 339                         it = fontlist.begin() + i - 1;
 340                 }
 341         }
 342
 343         // Update all other entries.
 344         FontList::iterator fend = fontlist.end();
 345         for (; it != fend; ++it)
 346                 it->pos(it->pos() - 1);
 347
 348         // Update the insetlist.
 349         owner_->insetlist.decreasePosAfterPos(pos);
 350 }
 351
 352
 353 bool Paragraph::Pimpl::erase(pos_type pos)
 354 {
 355         BOOST_ASSERT(pos < size());
 356
 357         if (tracking()) {
 358                 Change::Type changetype(changes_->lookup(pos));
 359                 changes_->record(Change(Change::DELETED), pos);
 360
 361                 // only allow the actual removal if it was /new/ text
 362                 if (changetype != Change::INSERTED) {
 363                         if (owner_->text_[pos] == Paragraph::META_INSET) {
 364                                 InsetOld * i(owner_->getInset(pos));
 365                                 i->markErased();
 366                         }
 367                         return false;
 368                 }
 369         }
 370
 371         eraseIntern(pos);
 372         return true;
 373 }
 374
 375
 376 int Paragraph::Pimpl::erase(pos_type start, pos_type end)
 377 {
 378         pos_type i = start;
 379         pos_type count = end - start;
 380         while (count) {
 381                 if (!erase(i)) {
 382                         ++i;
 383                 }
 384                 --count;
 385         }
 386         return end - i;
 387 }
 388
 389
 390 void Paragraph::Pimpl::simpleTeXBlanks(ostream & os, TexRow & texrow,
 391                                        pos_type const i,
 392                                        unsigned int & column,
 393                                        LyXFont const & font,
 394                                        LyXLayout const & style)
 395 {
 396         if (style.pass_thru)
 397                 return;
 398
 399         if (column > lyxrc.ascii_linelen
 400             && i
 401             && getChar(i - 1) != ' '
 402             && (i < size() - 1)
 403             // same in FreeSpacing mode
 404             && !owner_->isFreeSpacing()
 405             // In typewriter mode, we want to avoid
 406             // ! . ? : at the end of a line
 407             && !(font.family() == LyXFont::TYPEWRITER_FAMILY
 408                  && (getChar(i - 1) == '.'
 409                      || getChar(i - 1) == '?'
 410                      || getChar(i - 1) == ':'
 411                      || getChar(i - 1) == '!'))) {
 412                 os << '\n';
 413                 texrow.newline();
 414                 texrow.start(owner_->id(), i + 1);
 415                 column = 0;
 416         } else if (style.free_spacing) {
 417                 os << '~';
 418         } else {
 419                 os << ' ';
 420         }
 421 }
 422
 423
 424 bool Paragraph::Pimpl::isTextAt(string const & str, pos_type pos) const
 425 {
 426         pos_type const len = str.length();
 427
 428         // is the paragraph large enough?
 429         if (pos + len > size())
 430                 return false;
 431
 432         // does the wanted text start at point?
 433         for (string::size_type i = 0; i < str.length(); ++i) {
 434                 if (str[i] != owner_->text_[pos + i])
 435                         return false;
 436         }
 437
 438         // is there a font change in middle of the word?
 439         FontList::const_iterator cit = fontlist.begin();
 440         FontList::const_iterator end = fontlist.end();
 441         for (; cit != end; ++cit) {
 442                 if (cit->pos() >= pos)
 443                         break;
 444         }
 445         if (cit != end && pos + len - 1 > cit->pos())
 446                 return false;
 447
 448         return true;
 449 }
 450
 451
 452 void Paragraph::Pimpl::simpleTeXSpecialChars(Buffer const & buf,
 453                                              BufferParams const & bparams,
 454                                              ostream & os,
 455                                              TexRow & texrow,
 456                                              LatexRunParams const & runparams,
 457                                              LyXFont & font,
 458                                              LyXFont & running_font,
 459                                              LyXFont & basefont,
 460                                              LyXFont const & outerfont,
 461                                              bool & open_font,
 462                                              Change::Type & running_change,
 463                                              LyXLayout const & style,
 464                                              pos_type & i,
 465                                              unsigned int & column,
 466                                              value_type const c)
 467 {
 468         if (style.pass_thru) {
 469                 if (c != Paragraph::META_INSET) {
 470                         if (c != '\0')
 471                                 os << c;
 472                 } else {
 473                         InsetOld const * inset = owner_->getInset(i);
 474                         inset->ascii(buf, os, 0);
 475                 }
 476                 return;
 477         }
 478
 479         // Two major modes:  LaTeX or plain
 480         // Handle here those cases common to both modes
 481         // and then split to handle the two modes separately.
 482         switch (c) {
 483         case Paragraph::META_INSET: {
 484                 InsetOld * inset = owner_->getInset(i);
 485
 486                 // FIXME: remove this check
 487                 if (!inset)
 488                         break;
 489
 490                 // FIXME: move this to InsetNewline::latex
 491                 if (inset->lyxCode() == InsetOld::NEWLINE_CODE) {
 492                         // newlines are handled differently here than
 493                         // the default in simpleTeXSpecialChars().
 494                         if (!style.newline_allowed) {
 495                                 os << '\n';
 496                         } else {
 497                                 if (open_font) {
 498                                         column += running_font.latexWriteEndChanges(os, basefont, basefont);
 499                                         open_font = false;
 500                                 }
 501                                 basefont = owner_->getLayoutFont(bparams, outerfont);
 502                                 running_font = basefont;
 503
 504                                 if (font.family() == LyXFont::TYPEWRITER_FAMILY)
 505                                         os << '~';
 506
 507                                 if (runparams.moving_arg)
 508                                         os << "\\protect ";
 509
 510                                 os << "\\\\\n";
 511                         }
 512                         texrow.newline();
 513                         texrow.start(owner_->id(), i + 1);
 514                         column = 0;
 515                         break;
 516                 }
 517
 518                 if (inset->isTextInset()) {
 519                         column += Changes::latexMarkChange(os, running_change,
 520                                 Change::UNCHANGED);
 521                         running_change = Change::UNCHANGED;
 522                 }
 523
 524                 bool close = false;
 525                 int const len = os.tellp();
 526                 //ostream::pos_type const len = os.tellp();
 527                 if ((inset->lyxCode() == InsetOld::GRAPHICS_CODE
 528                      || inset->lyxCode() == InsetOld::MATH_CODE
 529                      || inset->lyxCode() == InsetOld::URL_CODE)
 530                     && running_font.isRightToLeft()) {
 531                         os << "\\L{";
 532                         close = true;
 533                 }
 534
 535 #ifdef WITH_WARNINGS
 536 #warning Bug: we can have an empty font change here!
 537 // if there has just been a font change, we are going to close it
 538 // right now, which means stupid latex code like \textsf{}. AFAIK,
 539 // this does not harm dvi output. A minor bug, thus (JMarc)
 540 #endif
 541                 // some insets cannot be inside a font change command
 542                 if (open_font && inset->noFontChange()) {
 543                         column +=running_font.
 544                                 latexWriteEndChanges(os,
 545                                                      basefont,
 546                                                      basefont);
 547                         open_font = false;
 548                         basefont = owner_->getLayoutFont(bparams, outerfont);
 549                         running_font = basefont;
 550                 }
 551
 552                 int tmp = inset->latex(buf, os, runparams);
 553
 554                 if (close)
 555                         os << '}';
 556
 557                 if (tmp) {
 558                         for (int j = 0; j < tmp; ++j) {
 559                                 texrow.newline();
 560                         }
 561                         texrow.start(owner_->id(), i + 1);
 562                         column = 0;
 563                 } else {
 564                         column += int(os.tellp()) - len;
 565                 }
 566         }
 567         break;
 568
 569         default:
 570                 // And now for the special cases within each mode
 571
 572                 switch (c) {
 573                 case '\\':
 574                         os << "\\textbackslash{}";
 575                         column += 15;
 576                         break;
 577
 578                 case '±': case '²': case '³':
 579                 case '×': case '÷': case '¹':
 580                 case '¬': case 'µ':
 581                         if ((bparams.inputenc == "latin1" ||
 582                              bparams.inputenc == "latin9") ||
 583                             (bparams.inputenc == "auto" &&
 584                              (font.language()->encoding()->LatexName()
 585                               == "latin1" ||
 586                               font.language()->encoding()->LatexName()
 587                               == "latin9"))) {
 588                                 os << "\\ensuremath{"
 589                                    << c
 590                                    << '}';
 591                                 column += 13;
 592                         } else {
 593                                 os << c;
 594                         }
 595                         break;
 596
 597                 case '|': case '<': case '>':
 598                         // In T1 encoding, these characters exist
 599                         if (lyxrc.fontenc == "T1") {
 600                                 os << c;
 601                                 //... but we should avoid ligatures
 602                                 if ((c == '>' || c == '<')
 603                                     && i <= size() - 2
 604                                     && getChar(i + 1) == c) {
 605                                         //os << "\\textcompwordmark{}";
 606                                         // Jean-Marc, have a look at
 607                                         // this. I think this works
 608                                         // equally well:
 609                                         os << "\\,{}";
 610                                         // Lgb
 611                                         column += 19;
 612                                 }
 613                                 break;
 614                         }
 615                         // Typewriter font also has them
 616                         if (font.family() == LyXFont::TYPEWRITER_FAMILY) {
 617                                 os << c;
 618                                 break;
 619                         }
 620                         // Otherwise, we use what LaTeX
 621                         // provides us.
 622                         switch (c) {
 623                         case '<':
 624                                 os << "\\textless{}";
 625                                 column += 10;
 626                                 break;
 627                         case '>':
 628                                 os << "\\textgreater{}";
 629                                 column += 13;
 630                                 break;
 631                         case '|':
 632                                 os << "\\textbar{}";
 633                                 column += 9;
 634                                 break;
 635                         }
 636                         break;
 637
 638                 case '-': // "--" in Typewriter mode -> "-{}-"
 639                         if (i <= size() - 2
 640                             && getChar(i + 1) == '-'
 641                             && font.family() == LyXFont::TYPEWRITER_FAMILY) {
 642                                 os << "-{}";
 643                                 column += 2;
 644                         } else {
 645                                 os << '-';
 646                         }
 647                         break;
 648
 649                 case '\"':
 650                         os << "\\char`\\\"{}";
 651                         column += 9;
 652                         break;
 653
 654                 case '£':
 655                         if (bparams.inputenc == "default") {
 656                                 os << "\\pounds{}";
 657                                 column += 8;
 658                         } else {
 659                                 os << c;
 660                         }
 661                         break;
 662
 663                 case '$': case '&':
 664                 case '%': case '#': case '{':
 665                 case '}': case '_':
 666                         os << '\\' << c;
 667                         column += 1;
 668                         break;
 669
 670                 case '~':
 671                         os << "\\textasciitilde{}";
 672                         column += 16;
 673                         break;
 674
 675                 case '^':
 676                         os << "\\textasciicircum{}";
 677                         column += 17;
 678                         break;
 679
 680                 case '*': case '[': case ']':
 681                         // avoid being mistaken for optional arguments
 682                         os << '{' << c << '}';
 683                         column += 2;
 684                         break;
 685
 686                 case ' ':
 687                         // Blanks are printed before font switching.
 688                         // Sure? I am not! (try nice-latex)
 689                         // I am sure it's correct. LyX might be smarter
 690                         // in the future, but for now, nothing wrong is
 691                         // written. (Asger)
 692                         break;
 693
 694                 default:
 695
 696                         // I assume this is hack treating typewriter as verbatim
 697                         if (font.family() == LyXFont::TYPEWRITER_FAMILY) {
 698                                 if (c != '\0') {
 699                                         os << c;
 700                                 }
 701                                 break;
 702                         }
 703
 704                         // LyX, LaTeX etc.
 705
 706                         // FIXME: if we have "LaTeX" with a font
 707                         // change in the middle (before the 'T', then
 708                         // the "TeX" part is still special cased.
 709                         // Really we should only operate this on
 710                         // "words" for some definition of word
 711
 712                         size_t pnr = 0;
 713
 714                         for (; pnr < phrases_nr; ++pnr) {
 715                                 if (isTextAt(special_phrases[pnr].phrase, i)) {
 716                                         os << special_phrases[pnr].macro;
 717                                         i += special_phrases[pnr].phrase.length() - 1;
 718                                         column += special_phrases[pnr].macro.length() - 1;
 719                                         break;
 720                                 }
 721                         }
 722
 723                         if (pnr == phrases_nr && c != '\0') {
 724                                 os << c;
 725                         }
 726                         break;
 727                 }
 728         }
 729 }
 730
 731
 732 void Paragraph::Pimpl::validate(LaTeXFeatures & features,
 733                                 LyXLayout const & layout) const
 734 {
 735         BufferParams const & bparams = features.bufferParams();
 736
 737         // check the params.
 738         if (params.lineTop() || params.lineBottom())
 739                 features.require("lyxline");
 740         if (!params.spacing().isDefault())
 741                 features.require("setspace");
 742
 743         // then the layouts
 744         features.useLayout(layout.name());
 745
 746         // then the fonts
 747         Language const * doc_language = bparams.language;
 748
 749         FontList::const_iterator fcit = fontlist.begin();
 750         FontList::const_iterator fend = fontlist.end();
 751         for (; fcit != fend; ++fcit) {
 752                 if (fcit->font().noun() == LyXFont::ON) {
 753                         lyxerr[Debug::LATEX] << "font.noun: "
 754                                              << fcit->font().noun()
 755                                              << endl;
 756                         features.require("noun");
 757                         lyxerr[Debug::LATEX] << "Noun enabled. Font: "
 758                                              << fcit->font().stateText(0)
 759                                              << endl;
 760                 }
 761                 switch (fcit->font().color()) {
 762                 case LColor::none:
 763                 case LColor::inherit:
 764                 case LColor::ignore:
 765                         // probably we should put here all interface colors used for
 766                         // font displaying! For now I just add this ones I know of (Jug)
 767                 case LColor::latex:
 768                 case LColor::note:
 769                         break;
 770                 default:
 771                         features.require("color");
 772                         lyxerr[Debug::LATEX] << "Color enabled. Font: "
 773                                              << fcit->font().stateText(0)
 774                                              << endl;
 775                 }
 776
 777                 Language const * language = fcit->font().language();
 778                 if (language->babel() != doc_language->babel() &&
 779                     language != ignore_language &&
 780                     language != latex_language)
 781                 {
 782                         features.useLanguage(language);
 783                         lyxerr[Debug::LATEX] << "Found language "
 784                                              << language->babel() << endl;
 785                 }
 786         }
 787
 788         if (!params.leftIndent().zero())
 789                 features.require("ParagraphLeftIndent");
 790
 791         // then the insets
 792         InsetList::iterator icit = owner_->insetlist.begin();
 793         InsetList::iterator iend = owner_->insetlist.end();
 794         for (; icit != iend; ++icit) {
 795                 if (icit->inset) {
 796                         icit->inset->validate(features);
 797                         if (layout.needprotect &&
 798                             icit->inset->lyxCode() == InsetOld::FOOT_CODE)
 799                                 features.require("NeedLyXFootnoteCode");
 800                 }
 801         }
 802
 803         // then the contents
 804         for (pos_type i = 0; i < size() ; ++i) {
 805                 for (size_t pnr = 0; pnr < phrases_nr; ++pnr) {
 806                         if (!special_phrases[pnr].builtin
 807                             && isTextAt(special_phrases[pnr].phrase, i)) {
 808                                 features.require(special_phrases[pnr].phrase);
 809                                 break;
 810                         }
 811                 }
 812         }
 813 }