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