src/paragraph_pimpl.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12
  13 #include "paragraph_pimpl.h"
  14 #include "LaTeXFeatures.h"
  15 #include "texrow.h"
  16 #include "language.h"
  17 #include "bufferparams.h"
  18 #include "encoding.h"
  19 #include "lyxrc.h"
  20 #include "debug.h"
  21
  22 #include "support/LAssert.h"
  23
  24 using lyx::pos_type;
  25 using std::endl;
  26 using std::ostream;
  27 using std::upper_bound;
  28 using std::lower_bound;
  29
  30 // Initialize static member.
  31 ShareContainer<LyXFont> Paragraph::Pimpl::FontTable::container;
  32 // Initialization of the counter for the paragraph id's,
  33 unsigned int Paragraph::Pimpl::paragraph_id = 0;
  34
  35 namespace {
  36
  37 struct special_phrase {
  38         string phrase;
  39         string macro;
  40         bool builtin;
  41 };
  42
  43 special_phrase special_phrases[] = {
  44         { "LyX", "\\LyX{}", false },
  45         { "TeX", "\\TeX{}", true },
  46         { "LaTeX2e", "\\LaTeXe{}", true },
  47         { "LaTeX", "\\LaTeX{}", true },
  48 };
  49
  50 size_t const phrases_nr = sizeof(special_phrases)/sizeof(special_phrase);
  51
  52 } // namespace anon
  53
  54
  55 Paragraph::Pimpl::Pimpl(Paragraph * owner)
  56         : owner_(owner)
  57 {
  58         inset_owner = 0;
  59         id_ = paragraph_id++;
  60 }
  61
  62
  63 Paragraph::Pimpl::Pimpl(Pimpl const & p, Paragraph * owner, bool same_ids)
  64         : params(p.params), owner_(owner)
  65 {
  66         inset_owner = p.inset_owner;
  67         text = p.text;
  68         fontlist = p.fontlist;
  69         if (same_ids)
  70                 id_ = p.id_;
  71         else
  72                 id_ = paragraph_id++;
  73
  74         if (p.tracking())
  75                 changes_.reset(new Changes(*p.changes_.get()));
  76 }
  77
  78
  79 void Paragraph::Pimpl::clear()
  80 {
  81         text.clear();
  82 #warning changes ?
  83 }
  84
  85
  86 void Paragraph::Pimpl::setContentsFromPar(Paragraph const * par)
  87 {
  88         lyx::Assert(par);
  89         text = par->pimpl_->text;
  90         if (par->pimpl_->tracking()) {
  91                 changes_.reset(new Changes(*(par->pimpl_->changes_.get())));
  92         }
  93 }
  94
  95
  96 void Paragraph::Pimpl::trackChanges(Change::Type type)
  97 {
  98         if (tracking()) {
  99                 lyxerr[Debug::CHANGES] << "already tracking for par " << id_ << endl;
 100                 return;
 101         }
 102
 103         lyxerr[Debug::CHANGES] << "track changes for par "
 104                 << id_ << " type " << type << endl;
 105         changes_.reset(new Changes(type));
 106         changes_->set(type, 0, size());
 107 }
 108
 109
 110 void Paragraph::Pimpl::untrackChanges()
 111 {
 112         changes_.reset(0);
 113 }
 114
 115
 116 void Paragraph::Pimpl::cleanChanges()
 117 {
 118         // if we're not tracking, we don't want to reset...
 119         if (!tracking())
 120                 return;
 121
 122         changes_.reset(new Changes(Change::INSERTED));
 123         changes_->set(Change::INSERTED, 0, size());
 124 }
 125
 126
 127 bool Paragraph::Pimpl::isChanged(pos_type start, pos_type end) const
 128 {
 129         if (!tracking())
 130                 return false;
 131
 132         return changes_->isChange(start, end);
 133 }
 134
 135
 136 bool Paragraph::Pimpl::isChangeEdited(pos_type start, pos_type end) const
 137 {
 138         if (!tracking())
 139                 return false;
 140
 141         return changes_->isChangeEdited(start, end);
 142 }
 143
 144
 145 void Paragraph::Pimpl::setChange(pos_type pos, Change::Type type)
 146 {
 147         if (!tracking())
 148                 return;
 149
 150         changes_->set(type, pos);
 151 }
 152
 153
 154 Change::Type Paragraph::Pimpl::lookupChange(pos_type pos) const
 155 {
 156         if (!tracking())
 157                 return Change::UNCHANGED;
 158
 159         return changes_->lookup(pos);
 160 }
 161
 162
 163 Change const Paragraph::Pimpl::lookupChangeFull(pos_type pos) const
 164 {
 165         if (!tracking())
 166                 return Change(Change::UNCHANGED);
 167
 168         return changes_->lookupFull(pos);
 169 }
 170
 171
 172 void Paragraph::Pimpl::markErased()
 173 {
 174         lyx::Assert(tracking());
 175
 176         // FIXME: we should actually remove INSERTED chars.
 177         // difficult because owning insettexts/tabulars need
 178         // to update themselves when rows etc. change
 179         changes_->set(Change::DELETED, 0, size());
 180         changes_->reset(Change::DELETED);
 181 }
 182
 183
 184 void Paragraph::Pimpl::acceptChange(pos_type start, pos_type end)
 185 {
 186         if (!tracking())
 187                 return;
 188
 189         if (!size()) {
 190                 changes_.reset(new Changes(Change::UNCHANGED));
 191                 return;
 192         }
 193
 194         lyxerr << "acceptchange" << endl;
 195         pos_type i = start;
 196
 197         for (; i < end; ++i) {
 198                 switch (lookupChange(i)) {
 199                         case Change::UNCHANGED:
 200                                 break;
 201
 202                         case Change::INSERTED:
 203                                 changes_->set(Change::UNCHANGED, i);
 204                                 break;
 205
 206                         case Change::DELETED:
 207                                 eraseIntern(i);
 208                                 changes_->erase(i);
 209                                 --end;
 210                                 --i;
 211                                 break;
 212                 }
 213         }
 214
 215         lyxerr << "endacceptchange" << endl;
 216         changes_->reset(Change::UNCHANGED);
 217 }
 218
 219
 220 void Paragraph::Pimpl::rejectChange(pos_type start, pos_type end)
 221 {
 222         if (!tracking())
 223                 return;
 224
 225         if (!size()) {
 226                 changes_.reset(new Changes(Change::UNCHANGED));
 227                 return;
 228         }
 229
 230         pos_type i = start;
 231
 232         for (; i < end; ++i) {
 233                 switch (lookupChange(i)) {
 234                         case Change::UNCHANGED:
 235                                 break;
 236
 237                         case Change::INSERTED:
 238                                 eraseIntern(i);
 239                                 changes_->erase(i);
 240                                 --end;
 241                                 --i;
 242                                 break;
 243
 244                         case Change::DELETED:
 245                                 changes_->set(Change::UNCHANGED, i);
 246                                 break;
 247                 }
 248         }
 249         changes_->reset(Change::UNCHANGED);
 250 }
 251
 252
 253 Paragraph::value_type Paragraph::Pimpl::getChar(pos_type pos) const
 254 {
 255         // This is in the critical path for loading!
 256         pos_type const siz = size();
 257         lyx::Assert(pos <= siz);
 258         // This is stronger, and I belive that this is the assertion
 259         // that we should really use. (Lgb)
 260         //Assert(pos < size());
 261
 262         // Then this has no meaning. (Lgb)
 263         if (!siz || pos == siz) {
 264                 lyxerr << "getChar() on pos " << pos << " in par id "
 265                         << owner_->id() << " of size " << siz
 266                         << "  is a bit silly !" << endl;
 267                 return '\0';
 268         }
 269
 270         return text[pos];
 271 }
 272
 273
 274 void Paragraph::Pimpl::setChar(pos_type pos, value_type c)
 275 {
 276 #warning changes
 277         text[pos] = c;
 278 }
 279
 280
 281 void Paragraph::Pimpl::insertChar(pos_type pos, value_type c,
 282                                   LyXFont const & font, Change change)
 283 {
 284         lyx::Assert(pos <= size());
 285
 286         if (tracking()) {
 287                 changes_->record(change, pos);
 288         }
 289
 290         // This is actually very common when parsing buffers (and
 291         // maybe inserting ascii text)
 292         if (pos == size()) {
 293                 // when appending characters, no need to update tables
 294                 text.push_back(c);
 295                 owner_->setFont(pos, font);
 296                 return;
 297         }
 298
 299         text.insert(text.begin() + pos, c);
 300
 301         // Update the font table.
 302         FontTable search_font(pos, LyXFont());
 303         for (FontList::iterator it = lower_bound(fontlist.begin(),
 304                                                       fontlist.end(),
 305                                                       search_font, matchFT());
 306              it != fontlist.end(); ++it)
 307         {
 308                 it->pos(it->pos() + 1);
 309         }
 310
 311         // Update the insets
 312         owner_->insetlist.increasePosAfterPos(pos);
 313
 314         owner_->setFont(pos, font);
 315 }
 316
 317
 318 void Paragraph::Pimpl::insertInset(pos_type pos,
 319                                    Inset * inset, LyXFont const & font, Change change)
 320 {
 321         lyx::Assert(inset);
 322         lyx::Assert(pos <= size());
 323
 324         insertChar(pos, META_INSET, font, change);
 325         lyx::Assert(text[pos] == META_INSET);
 326
 327         // Add a new entry in the insetlist.
 328         owner_->insetlist.insert(inset, pos);
 329         inset->parOwner(owner_);
 330
 331         if (inset_owner)
 332                 inset->setOwner(inset_owner);
 333 }
 334
 335
 336 bool Paragraph::Pimpl::erasePos(pos_type pos)
 337 {
 338         lyx::Assert(pos < size());
 339
 340         if (tracking()) {
 341                 Change::Type changetype(changes_->lookup(pos));
 342                 changes_->record(Change(Change::DELETED), pos);
 343
 344                 // only allow the actual removal if it was /new/ text
 345                 if (changetype != Change::INSERTED) {
 346                         if (text[pos] == Paragraph::META_INSET) {
 347                                 Inset * i(owner_->getInset(pos));
 348                                 i->markErased();
 349                         }
 350                         return false;
 351                 }
 352         }
 353
 354         eraseIntern(pos);
 355         return true;
 356 }
 357
 358
 359 void Paragraph::Pimpl::eraseIntern(pos_type pos)
 360 {
 361         // if it is an inset, delete the inset entry
 362         if (text[pos] == Paragraph::META_INSET) {
 363                 owner_->insetlist.erase(pos);
 364         }
 365
 366         text.erase(text.begin() + pos);
 367
 368         // Erase entries in the tables.
 369         FontTable search_font(pos, LyXFont());
 370
 371         FontList::iterator it =
 372                 lower_bound(fontlist.begin(),
 373                             fontlist.end(),
 374                             search_font, matchFT());
 375         if (it != fontlist.end() && it->pos() == pos &&
 376             (pos == 0 ||
 377              (it != fontlist.begin()
 378               && boost::prior(it)->pos() == pos - 1))) {
 379                 // If it is a multi-character font
 380                 // entry, we just make it smaller
 381                 // (see update below), otherwise we
 382                 // should delete it.
 383                 unsigned int const i = it - fontlist.begin();
 384                 fontlist.erase(fontlist.begin() + i);
 385                 it = fontlist.begin() + i;
 386                 if (i > 0 && i < fontlist.size() &&
 387                     fontlist[i - 1].font() == fontlist[i].font()) {
 388                         fontlist.erase(fontlist.begin() + i - 1);
 389                         it = fontlist.begin() + i - 1;
 390                 }
 391         }
 392
 393         // Update all other entries.
 394         FontList::iterator fend = fontlist.end();
 395         for (; it != fend; ++it)
 396                 it->pos(it->pos() - 1);
 397
 398         // Update the insetlist.
 399         owner_->insetlist.decreasePosAfterPos(pos);
 400 }
 401
 402
 403 void Paragraph::Pimpl::erase(pos_type pos)
 404 {
 405         erasePos(pos);
 406 }
 407
 408
 409 bool Paragraph::Pimpl::erase(pos_type start, pos_type end)
 410 {
 411         pos_type i = start;
 412         pos_type count = end - start;
 413         bool any_erased = false;
 414
 415         while (count) {
 416                 if (!erasePos(i)) {
 417                         ++i;
 418                 } else {
 419                         any_erased = true;
 420                 }
 421                 --count;
 422         }
 423         return any_erased;
 424 }
 425
 426
 427 void Paragraph::Pimpl::simpleTeXBlanks(ostream & os, TexRow & texrow,
 428                                        pos_type const i,
 429                                        unsigned int & column,
 430                                        LyXFont const & font,
 431                                        LyXLayout const & style)
 432 {
 433         if (style.pass_thru) return;
 434         if (column > lyxrc.ascii_linelen
 435             && i
 436             && getChar(i - 1) != ' '
 437             && (i < size() - 1)
 438             // same in FreeSpacing mode
 439             && !style.free_spacing
 440                 && !owner_->isFreeSpacing()
 441             // In typewriter mode, we want to avoid
 442             // ! . ? : at the end of a line
 443             && !(font.family() == LyXFont::TYPEWRITER_FAMILY
 444                  && (getChar(i - 1) == '.'
 445                      || getChar(i - 1) == '?'
 446                      || getChar(i - 1) == ':'
 447                      || getChar(i - 1) == '!'))) {
 448                 os << '\n';
 449                 texrow.newline();
 450                 texrow.start(owner_, i + 1);
 451                 column = 0;
 452         } else if (style.free_spacing) {
 453                 os << '~';
 454         } else {
 455                 os << ' ';
 456         }
 457 }
 458
 459
 460 bool Paragraph::Pimpl::isTextAt(string const & str, pos_type pos) const
 461 {
 462         pos_type const len = str.length();
 463
 464         // is the paragraph large enough?
 465         if (pos + len > size())
 466                 return false;
 467
 468         // does the wanted text start at point?
 469         for (string::size_type i = 0; i < str.length(); ++i) {
 470                 if (str[i] != text[pos + i])
 471                         return false;
 472         }
 473
 474         // is there a font change in middle of the word?
 475         FontList::const_iterator cit = fontlist.begin();
 476         FontList::const_iterator end = fontlist.end();
 477         for (; cit != end; ++cit) {
 478                 if (cit->pos() >= pos)
 479                         break;
 480         }
 481         if (cit != end && pos + len - 1 > cit->pos())
 482                 return false;
 483
 484         return true;
 485 }
 486
 487
 488 void Paragraph::Pimpl::simpleTeXSpecialChars(Buffer const * buf,
 489                                              BufferParams const & bparams,
 490                                              ostream & os,
 491                                              TexRow & texrow,
 492                                              bool moving_arg,
 493                                              LyXFont & font,
 494                                              LyXFont & running_font,
 495                                              LyXFont & basefont,
 496                                              bool & open_font,
 497                                              Change::Type & running_change,
 498                                              LyXLayout const & style,
 499                                              pos_type & i,
 500                                              unsigned int & column,
 501                                              value_type const c)
 502 {
 503         if (style.pass_thru) {
 504                 if (c != '\0')
 505                         os << c;
 506                 return;
 507         }
 508
 509         // Two major modes:  LaTeX or plain
 510         // Handle here those cases common to both modes
 511         // and then split to handle the two modes separately.
 512         switch (c) {
 513         case Paragraph::META_INSET: {
 514                 Inset * inset = owner_->getInset(i);
 515
 516                 // FIXME: remove this check
 517                 if (!inset)
 518                         break;
 519
 520                 if (inset->isTextInset()) {
 521                         column += Changes::latexMarkChange(os, running_change,
 522                                 Change::UNCHANGED);
 523                         running_change = Change::UNCHANGED;
 524                 }
 525
 526                 bool close = false;
 527                 int const len = os.tellp();
 528                 //ostream::pos_type const len = os.tellp();
 529                 if ((inset->lyxCode() == Inset::GRAPHICS_CODE
 530                      || inset->lyxCode() == Inset::MATH_CODE
 531                      || inset->lyxCode() == Inset::URL_CODE)
 532                     && running_font.isRightToLeft()) {
 533                         os << "\\L{";
 534                         close = true;
 535                 }
 536
 537 #ifdef WITH_WARNINGS
 538 #warning Bug: we can have an empty font change here!
 539 // if there has just been a font change, we are going to close it
 540 // right now, which means stupid latex code like \textsf{}. AFAIK,
 541 // this does not harm dvi output. A minor bug, thus (JMarc)
 542 #endif
 543                 // some insets cannot be inside a font change command
 544                 if (open_font && inset->noFontChange()) {
 545                         column +=running_font.
 546                                 latexWriteEndChanges(os,
 547                                                      basefont,
 548                                                      basefont);
 549                         open_font = false;
 550                         basefont = owner_->getLayoutFont(bparams);
 551                         running_font = basefont;
 552                 }
 553
 554                 int tmp = inset->latex(buf, os, moving_arg,
 555                                        style.free_spacing);
 556
 557                 if (close)
 558                         os << '}';
 559
 560                 if (tmp) {
 561                         for (int j = 0; j < tmp; ++j) {
 562                                 texrow.newline();
 563                         }
 564                         texrow.start(owner_, i + 1);
 565                         column = 0;
 566                 } else {
 567                         column += int(os.tellp()) - len;
 568                 }
 569         }
 570         break;
 571
 572         case Paragraph::META_NEWLINE:
 573                 if (open_font) {
 574                         column += running_font.latexWriteEndChanges(os,
 575                                                                     basefont,
 576                                                                     basefont);
 577                         open_font = false;
 578                 }
 579                 basefont = owner_->getLayoutFont(bparams);
 580                 running_font = basefont;
 581                 break;
 582
 583         default:
 584                 // And now for the special cases within each mode
 585
 586                 switch (c) {
 587                 case '\\':
 588                         os << "\\textbackslash{}";
 589                         column += 15;
 590                         break;
 591
 592                 case '±': case '²': case '³':
 593                 case '×': case '÷': case '¹':
 594                 case '¬': case 'µ':
 595                         if ((bparams.inputenc == "latin1" ||
 596                              bparams.inputenc == "latin9") ||
 597                             (bparams.inputenc == "auto" &&
 598                              (font.language()->encoding()->LatexName()
 599                               == "latin1" ||
 600                               font.language()->encoding()->LatexName()
 601                               == "latin9"))) {
 602                                 os << "\\ensuremath{"
 603                                    << c
 604                                    << '}';
 605                                 column += 13;
 606                         } else {
 607                                 os << c;
 608                         }
 609                         break;
 610
 611                 case '|': case '<': case '>':
 612                         // In T1 encoding, these characters exist
 613                         if (lyxrc.fontenc == "T1") {
 614                                 os << c;
 615                                 //... but we should avoid ligatures
 616                                 if ((c == '>' || c == '<')
 617                                     && i <= size() - 2
 618                                     && getChar(i + 1) == c) {
 619                                         //os << "\\textcompwordmark{}";
 620                                         // Jean-Marc, have a look at
 621                                         // this. I think this works
 622                                         // equally well:
 623                                         os << "\\,{}";
 624                                         // Lgb
 625                                         column += 19;
 626                                 }
 627                                 break;
 628                         }
 629                         // Typewriter font also has them
 630                         if (font.family() == LyXFont::TYPEWRITER_FAMILY) {
 631                                 os << c;
 632                                 break;
 633                         }
 634                         // Otherwise, we use what LaTeX
 635                         // provides us.
 636                         switch (c) {
 637                         case '<':
 638                                 os << "\\textless{}";
 639                                 column += 10;
 640                                 break;
 641                         case '>':
 642                                 os << "\\textgreater{}";
 643                                 column += 13;
 644                                 break;
 645                         case '|':
 646                                 os << "\\textbar{}";
 647                                 column += 9;
 648                                 break;
 649                         }
 650                         break;
 651
 652                 case '-': // "--" in Typewriter mode -> "-{}-"
 653                         if (i <= size() - 2
 654                             && getChar(i + 1) == '-'
 655                             && font.family() == LyXFont::TYPEWRITER_FAMILY) {
 656                                 os << "-{}";
 657                                 column += 2;
 658                         } else {
 659                                 os << '-';
 660                         }
 661                         break;
 662
 663                 case '\"':
 664                         os << "\\char`\\\"{}";
 665                         column += 9;
 666                         break;
 667
 668                 case '£':
 669                         if (bparams.inputenc == "default") {
 670                                 os << "\\pounds{}";
 671                                 column += 8;
 672                         } else {
 673                                 os << c;
 674                         }
 675                         break;
 676
 677                 case '$': case '&':
 678                 case '%': case '#': case '{':
 679                 case '}': case '_':
 680                         os << '\\' << c;
 681                         column += 1;
 682                         break;
 683
 684                 case '~':
 685                         os << "\\textasciitilde{}";
 686                         column += 16;
 687                         break;
 688
 689                 case '^':
 690                         os << "\\textasciicircum{}";
 691                         column += 17;
 692                         break;
 693
 694                 case '*': case '[': case ']':
 695                         // avoid being mistaken for optional arguments
 696                         os << '{' << c << '}';
 697                         column += 2;
 698                         break;
 699
 700                 case ' ':
 701                         // Blanks are printed before font switching.
 702                         // Sure? I am not! (try nice-latex)
 703                         // I am sure it's correct. LyX might be smarter
 704                         // in the future, but for now, nothing wrong is
 705                         // written. (Asger)
 706                         break;
 707
 708                 default:
 709
 710                         // I assume this is hack treating typewriter as verbatim
 711                         if (font.family() == LyXFont::TYPEWRITER_FAMILY) {
 712                                 if (c != '\0') {
 713                                         os << c;
 714                                 }
 715                                 break;
 716                         }
 717
 718                         // LyX, LaTeX etc.
 719
 720                         // FIXME: if we have "LaTeX" with a font
 721                         // change in the middle (before the 'T', then
 722                         // the "TeX" part is still special cased.
 723                         // Really we should only operate this on
 724                         // "words" for some definition of word
 725
 726                         size_t pnr = 0;
 727
 728                         for (; pnr < phrases_nr; ++pnr) {
 729                                 if (isTextAt(special_phrases[pnr].phrase, i)) {
 730                                         os << special_phrases[pnr].macro;
 731                                         i += special_phrases[pnr].phrase.length() - 1;
 732                                         column += special_phrases[pnr].macro.length() - 1;
 733                                         break;
 734                                 }
 735                         }
 736
 737                         if (pnr == phrases_nr && c != '\0') {
 738                                 os << c;
 739                         }
 740                         break;
 741                 }
 742         }
 743 }
 744
 745
 746 void Paragraph::Pimpl::validate(LaTeXFeatures & features,
 747                                 LyXLayout const & layout) const
 748 {
 749         BufferParams const & bparams = features.bufferParams();
 750
 751         // check the params.
 752         if (params.lineTop() || params.lineBottom())
 753                 features.require("lyxline");
 754         if (!params.spacing().isDefault())
 755                 features.require("setspace");
 756
 757         // then the layouts
 758         features.useLayout(layout.name());
 759
 760         // then the fonts
 761         Language const * doc_language = bparams.language;
 762
 763         FontList::const_iterator fcit = fontlist.begin();
 764         FontList::const_iterator fend = fontlist.end();
 765         for (; fcit != fend; ++fcit) {
 766                 if (fcit->font().noun() == LyXFont::ON) {
 767                         lyxerr[Debug::LATEX] << "font.noun: "
 768                                              << fcit->font().noun()
 769                                              << endl;
 770                         features.require("noun");
 771                         lyxerr[Debug::LATEX] << "Noun enabled. Font: "
 772                                              << fcit->font().stateText(0)
 773                                              << endl;
 774                 }
 775                 switch (fcit->font().color()) {
 776                 case LColor::none:
 777                 case LColor::inherit:
 778                 case LColor::ignore:
 779                         // probably we should put here all interface colors used for
 780                         // font displaying! For now I just add this ones I know of (Jug)
 781                 case LColor::latex:
 782                 case LColor::note:
 783                         break;
 784                 default:
 785                         features.require("color");
 786                         lyxerr[Debug::LATEX] << "Color enabled. Font: "
 787                                              << fcit->font().stateText(0)
 788                                              << endl;
 789                 }
 790
 791                 Language const * language = fcit->font().language();
 792                 if (language->babel() != doc_language->babel() &&
 793                     language != ignore_language &&
 794                     language != latex_language)
 795                 {
 796                         features.useLanguage(language);
 797                         lyxerr[Debug::LATEX] << "Found language "
 798                                              << language->babel() << endl;
 799                 }
 800         }
 801
 802         if (!params.leftIndent().zero())
 803                 features.require("ParagraphLeftIndent");
 804
 805         // then the insets
 806         InsetList::iterator icit = owner_->insetlist.begin();
 807         InsetList::iterator iend = owner_->insetlist.end();
 808         for (; icit != iend; ++icit) {
 809                 if (icit.getInset()) {
 810                         icit.getInset()->validate(features);
 811                         if (layout.needprotect &&
 812                             icit.getInset()->lyxCode() == Inset::FOOT_CODE)
 813                                 features.require("NeedLyXFootnoteCode");
 814                 }
 815         }
 816
 817         // then the contents
 818         for (pos_type i = 0; i < size() ; ++i) {
 819                 for (size_t pnr = 0; pnr < phrases_nr; ++pnr) {
 820                         if (!special_phrases[pnr].builtin
 821                             && isTextAt(special_phrases[pnr].phrase, i)) {
 822                                 features.require(special_phrases[pnr].phrase);
 823                                 break;
 824                         }
 825                 }
 826         }
 827 }
 828
 829
 830 LyXFont const Paragraph::Pimpl::realizeFont(LyXFont const & font,
 831                                             BufferParams const & bparams) const
 832 {
 833         LyXFont tmpfont(font);
 834
 835         // check for environment font information
 836         char par_depth = owner_->getDepth();
 837         Paragraph const * par = owner_;
 838         LyXTextClass const & tclass = bparams.getLyXTextClass();
 839
 840         while (par && par->getDepth() && !tmpfont.resolved()) {
 841                 par = par->outerHook();
 842                 if (par) {
 843                         tmpfont.realize(par->layout()->font);
 844                         par_depth = par->getDepth();
 845                 }
 846         }
 847
 848         tmpfont.realize(tclass.defaultfont());
 849         return tmpfont;
 850 }