src/paragraph.C

   1 /**
   2  * \file paragraph.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Asger Alstrup
   7  * \author Lars Gullik Bjønnes
   8  * \author Jean-Marc Lasgouttes
   9  * \author Angus Leeming
  10  * \author John Levon
  11  * \author André Pönitz
  12  * \author Dekel Tsur
  13  * \author Jürgen Vigna
  14  *
  15  * Full author contact details are available in file CREDITS.
  16  */
  17
  18 #include <config.h>
  19
  20 #include "paragraph.h"
  21 #include "paragraph_pimpl.h"
  22
  23 #include "buffer.h"
  24 #include "bufferparams.h"
  25 #include "encoding.h"
  26 #include "debug.h"
  27 #include "gettext.h"
  28 #include "language.h"
  29 #include "latexrunparams.h"
  30 #include "lyxfont.h"
  31 #include "lyxrc.h"
  32 #include "lyxrow.h"
  33 #include "paragraph_funcs.h"
  34 #include "sgml.h"
  35 #include "texrow.h"
  36 #include "vspace.h"
  37
  38 #include "insets/insetbibitem.h"
  39 #include "insets/insetoptarg.h"
  40
  41 #include "support/lstrings.h"
  42 #include "support/textutils.h"
  43 #include "support/std_sstream.h"
  44
  45 #include <boost/tuple/tuple.hpp>
  46
  47 #include <list>
  48 #include <stack>
  49
  50 using lyx::pos_type;
  51
  52 using lyx::support::contains;
  53 using lyx::support::subst;
  54
  55 using std::endl;
  56 using std::list;
  57 using std::stack;
  58 using std::string;
  59 using std::ostream;
  60 using std::ostringstream;
  61
  62
  63 Paragraph::Paragraph()
  64         : y(0), height(0), pimpl_(new Paragraph::Pimpl(this))
  65 {
  66         itemdepth = 0;
  67         params().clear();
  68 }
  69
  70
  71 Paragraph::Paragraph(Paragraph const & lp)
  72         : y(0), height(0), text_(lp.text_), pimpl_(new Paragraph::Pimpl(*lp.pimpl_, this))
  73 {
  74         itemdepth = 0;
  75         // this is because of the dummy layout of the paragraphs that
  76         // follow footnotes
  77         layout_ = lp.layout();
  78
  79         // copy everything behind the break-position to the new paragraph
  80         insetlist = lp.insetlist;
  81         InsetList::iterator it = insetlist.begin();
  82         InsetList::iterator end = insetlist.end();
  83         for (; it != end; ++it) {
  84                 // currently we hold Inset*, not InsetBase*
  85                 it->inset = static_cast<InsetOld*>(it->inset->clone().release());
  86         }
  87 }
  88
  89
  90 void Paragraph::operator=(Paragraph const & lp)
  91 {
  92         // needed as we will destroy the pimpl_ before copying it
  93         if (&lp != this)
  94                 return;
  95
  96         lyxerr << "Paragraph::operator=()" << endl;
  97
  98         text_ = lp.text_;
  99
 100         delete pimpl_;
 101         pimpl_ = new Pimpl(*lp.pimpl_, this);
 102
 103         itemdepth = lp.itemdepth;
 104         // this is because of the dummy layout of the paragraphs that
 105         // follow footnotes
 106         layout_ = lp.layout();
 107
 108         // copy everything behind the break-position to the new paragraph
 109         insetlist = lp.insetlist;
 110         InsetList::iterator it = insetlist.begin();
 111         InsetList::iterator end = insetlist.end();
 112         for (; it != end; ++it) {
 113                 it->inset = static_cast<InsetOld*>(it->inset->clone().release());
 114         }
 115 }
 116
 117 // the destructor removes the new paragraph from the list
 118 Paragraph::~Paragraph()
 119 {
 120         delete pimpl_;
 121         //
 122         //lyxerr << "Paragraph::paragraph_id = "
 123         //       << Paragraph::paragraph_id << endl;
 124 }
 125
 126
 127 void Paragraph::write(Buffer const & buf, ostream & os,
 128                           BufferParams const & bparams,
 129                           depth_type & dth) const
 130 {
 131         // The beginning or end of a deeper (i.e. nested) area?
 132         if (dth != params().depth()) {
 133                 if (params().depth() > dth) {
 134                         while (params().depth() > dth) {
 135                                 os << "\n\\begin_deeper ";
 136                                 ++dth;
 137                         }
 138                 } else {
 139                         while (params().depth() < dth) {
 140                                 os << "\n\\end_deeper ";
 141                                 --dth;
 142                         }
 143                 }
 144         }
 145
 146         // First write the layout
 147         os << "\n\\begin_layout " << layout()->name() << '\n';
 148
 149         params().write(os);
 150
 151         LyXFont font1(LyXFont::ALL_INHERIT, bparams.language);
 152
 153         Change running_change = Change(Change::UNCHANGED);
 154         lyx::time_type const curtime(lyx::current_time());
 155
 156         int column = 0;
 157         for (pos_type i = 0; i < size(); ++i) {
 158                 if (!i) {
 159                         os << '\n';
 160                         column = 0;
 161                 }
 162
 163                 Change change = pimpl_->lookupChangeFull(i);
 164                 Changes::lyxMarkChange(os, column, curtime, running_change, change);
 165                 running_change = change;
 166
 167                 // Write font changes
 168                 LyXFont font2 = getFontSettings(bparams, i);
 169                 if (font2 != font1) {
 170                         font2.lyxWriteChanges(font1, os);
 171                         column = 0;
 172                         font1 = font2;
 173                 }
 174
 175                 value_type const c = getChar(i);
 176                 switch (c) {
 177                 case META_INSET:
 178                 {
 179                         InsetOld const * inset = getInset(i);
 180                         if (inset)
 181                                 if (inset->directWrite()) {
 182                                         // international char, let it write
 183                                         // code directly so it's shorter in
 184                                         // the file
 185                                         inset->write(buf, os);
 186                                 } else {
 187                                         os << "\n\\begin_inset ";
 188                                         inset->write(buf, os);
 189                                         os << "\n\\end_inset \n\n";
 190                                         column = 0;
 191                                 }
 192                 }
 193                 break;
 194                 case '\\':
 195                         os << "\n\\backslash \n";
 196                         column = 0;
 197                         break;
 198                 case '.':
 199                         if (i + 1 < size() && getChar(i + 1) == ' ') {
 200                                 os << ".\n";
 201                                 column = 0;
 202                         } else
 203                                 os << '.';
 204                         break;
 205                 default:
 206                         if ((column > 70 && c == ' ')
 207                             || column > 79) {
 208                                 os << '\n';
 209                                 column = 0;
 210                         }
 211                         // this check is to amend a bug. LyX sometimes
 212                         // inserts '\0' this could cause problems.
 213                         if (c != '\0')
 214                                 os << c;
 215                         else
 216                                 lyxerr << "ERROR (Paragraph::writeFile):"
 217                                         " NULL char in structure." << endl;
 218                         ++column;
 219                         break;
 220                 }
 221         }
 222
 223         // to make reading work properly
 224         if (!size()) {
 225                 running_change = pimpl_->lookupChange(0);
 226                 Changes::lyxMarkChange(os, column, curtime,
 227                         Change(Change::UNCHANGED), running_change);
 228         }
 229         Changes::lyxMarkChange(os, column, curtime,
 230                 running_change, Change(Change::UNCHANGED));
 231
 232         os << "\n\\end_layout\n";
 233 }
 234
 235
 236 void Paragraph::validate(LaTeXFeatures & features) const
 237 {
 238         pimpl_->validate(features, *layout());
 239 }
 240
 241
 242 void Paragraph::eraseIntern(lyx::pos_type pos)
 243 {
 244         pimpl_->eraseIntern(pos);
 245 }
 246
 247
 248 bool Paragraph::erase(pos_type pos)
 249 {
 250         return pimpl_->erase(pos);
 251 }
 252
 253
 254 int Paragraph::erase(pos_type start, pos_type end)
 255 {
 256         return pimpl_->erase(start, end);
 257 }
 258
 259
 260 bool Paragraph::checkInsertChar(LyXFont & font)
 261 {
 262         if (pimpl_->inset_owner)
 263                 return pimpl_->inset_owner->checkInsertChar(font);
 264         return true;
 265 }
 266
 267
 268 void Paragraph::insertChar(pos_type pos, Paragraph::value_type c)
 269 {
 270         insertChar(pos, c, LyXFont(LyXFont::ALL_INHERIT));
 271 }
 272
 273
 274 void Paragraph::insertChar(pos_type pos, Paragraph::value_type c,
 275                            LyXFont const & font, Change change)
 276 {
 277         pimpl_->insertChar(pos, c, font, change);
 278 }
 279
 280
 281 void Paragraph::insertInset(pos_type pos, InsetOld * inset)
 282 {
 283         insertInset(pos, inset, LyXFont(LyXFont::ALL_INHERIT));
 284 }
 285
 286
 287 void Paragraph::insertInset(pos_type pos, InsetOld * inset,
 288         LyXFont const & font, Change change)
 289 {
 290         pimpl_->insertInset(pos, inset, font, change);
 291 }
 292
 293
 294 bool Paragraph::insetAllowed(InsetOld_code code)
 295 {
 296         //lyxerr << "Paragraph::InsertInsetAllowed" << endl;
 297         if (pimpl_->inset_owner)
 298                 return pimpl_->inset_owner->insetAllowed(code);
 299         return true;
 300 }
 301
 302
 303 InsetOld * Paragraph::getInset(pos_type pos)
 304 {
 305         BOOST_ASSERT(pos < size());
 306         return insetlist.get(pos);
 307 }
 308
 309
 310 InsetOld const * Paragraph::getInset(pos_type pos) const
 311 {
 312         BOOST_ASSERT(pos < size());
 313         return insetlist.get(pos);
 314 }
 315
 316
 317 // Gets uninstantiated font setting at position.
 318 LyXFont const Paragraph::getFontSettings(BufferParams const & bparams,
 319                                          pos_type pos) const
 320 {
 321         BOOST_ASSERT(pos <= size());
 322
 323         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 324         Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
 325         for (; cit != end; ++cit)
 326                 if (cit->pos() >= pos)
 327                         break;
 328
 329         if (cit != end)
 330                 return cit->font();
 331
 332         if (pos == size() && !empty())
 333                 return getFontSettings(bparams, pos - 1);
 334
 335         return LyXFont(LyXFont::ALL_INHERIT, getParLanguage(bparams));
 336 }
 337
 338
 339 lyx::pos_type Paragraph::getEndPosOfFontSpan(lyx::pos_type pos) const
 340 {
 341         BOOST_ASSERT(pos <= size());
 342
 343         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 344         Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
 345         for (; cit != end; ++cit)
 346                 if (cit->pos() >= pos)
 347                         return cit->pos();
 348
 349         // This should not happen, but if so, we take no chances.
 350         //lyxerr << "Paragraph::getEndPosOfFontSpan: This should not happen!"
 351         //      << endl;
 352         return pos;
 353 }
 354
 355
 356 // Gets uninstantiated font setting at position 0
 357 LyXFont const Paragraph::getFirstFontSettings() const
 358 {
 359         if (!empty() && !pimpl_->fontlist.empty())
 360                 return pimpl_->fontlist[0].font();
 361
 362         return LyXFont(LyXFont::ALL_INHERIT);
 363 }
 364
 365
 366 // Gets the fully instantiated font at a given position in a paragraph
 367 // This is basically the same function as LyXText::GetFont() in text2.C.
 368 // The difference is that this one is used for generating the LaTeX file,
 369 // and thus cosmetic "improvements" are disallowed: This has to deliver
 370 // the true picture of the buffer. (Asger)
 371 LyXFont const Paragraph::getFont(BufferParams const & bparams, pos_type pos,
 372                                  LyXFont const & outerfont) const
 373 {
 374         BOOST_ASSERT(pos >= 0);
 375
 376         LyXLayout_ptr const & lout = layout();
 377
 378         pos_type const body_pos = beginningOfBody();
 379
 380         LyXFont layoutfont;
 381         if (pos < body_pos)
 382                 layoutfont = lout->labelfont;
 383         else
 384                 layoutfont = lout->font;
 385
 386         LyXFont font = getFontSettings(bparams, pos);
 387         font.realize(layoutfont);
 388         font.realize(outerfont);
 389         font.realize(bparams.getLyXTextClass().defaultfont());
 390
 391         return font;
 392 }
 393
 394
 395 LyXFont const Paragraph::getLabelFont(BufferParams const & bparams,
 396                                       LyXFont const & outerfont) const
 397 {
 398         LyXFont tmpfont = layout()->labelfont;
 399         tmpfont.setLanguage(getParLanguage(bparams));
 400         tmpfont.realize(outerfont);
 401         tmpfont.realize(bparams.getLyXTextClass().defaultfont());
 402         return tmpfont;
 403 }
 404
 405
 406 LyXFont const Paragraph::getLayoutFont(BufferParams const & bparams,
 407                                        LyXFont const & outerfont) const
 408 {
 409         LyXFont tmpfont = layout()->font;
 410         tmpfont.setLanguage(getParLanguage(bparams));
 411         tmpfont.realize(outerfont);
 412         tmpfont.realize(bparams.getLyXTextClass().defaultfont());
 413         return tmpfont;
 414 }
 415
 416
 417 /// Returns the height of the highest font in range
 418 LyXFont_size
 419 Paragraph::highestFontInRange(pos_type startpos, pos_type endpos,
 420                               LyXFont_size def_size) const
 421 {
 422         if (pimpl_->fontlist.empty())
 423                 return def_size;
 424
 425         Pimpl::FontList::const_iterator end_it = pimpl_->fontlist.begin();
 426         Pimpl::FontList::const_iterator const end = pimpl_->fontlist.end();
 427         for (; end_it != end; ++end_it) {
 428                 if (end_it->pos() >= endpos)
 429                         break;
 430         }
 431
 432         if (end_it != end)
 433                 ++end_it;
 434
 435         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 436         for (; cit != end; ++cit) {
 437                 if (cit->pos() >= startpos)
 438                         break;
 439         }
 440
 441         LyXFont::FONT_SIZE maxsize = LyXFont::SIZE_TINY;
 442         for (; cit != end_it; ++cit) {
 443                 LyXFont::FONT_SIZE size = cit->font().size();
 444                 if (size == LyXFont::INHERIT_SIZE)
 445                         size = def_size;
 446                 if (size > maxsize && size <= LyXFont::SIZE_HUGER)
 447                         maxsize = size;
 448         }
 449         return maxsize;
 450 }
 451
 452
 453 Paragraph::value_type
 454 Paragraph::getUChar(BufferParams const & bparams, pos_type pos) const
 455 {
 456         value_type c = getChar(pos);
 457         if (!lyxrc.rtl_support)
 458                 return c;
 459
 460         value_type uc = c;
 461         switch (c) {
 462         case '(':
 463                 uc = ')';
 464                 break;
 465         case ')':
 466                 uc = '(';
 467                 break;
 468         case '[':
 469                 uc = ']';
 470                 break;
 471         case ']':
 472                 uc = '[';
 473                 break;
 474         case '{':
 475                 uc = '}';
 476                 break;
 477         case '}':
 478                 uc = '{';
 479                 break;
 480         case '<':
 481                 uc = '>';
 482                 break;
 483         case '>':
 484                 uc = '<';
 485                 break;
 486         }
 487         if (uc != c && getFontSettings(bparams, pos).isRightToLeft())
 488                 return uc;
 489         else
 490                 return c;
 491 }
 492
 493
 494 void Paragraph::setFont(pos_type pos, LyXFont const & font)
 495 {
 496         BOOST_ASSERT(pos <= size());
 497
 498         // First, reduce font against layout/label font
 499         // Update: The setCharFont() routine in text2.C already
 500         // reduces font, so we don't need to do that here. (Asger)
 501         // No need to simplify this because it will disappear
 502         // in a new kernel. (Asger)
 503         // Next search font table
 504
 505         Pimpl::FontList::iterator beg = pimpl_->fontlist.begin();
 506         Pimpl::FontList::iterator it = beg;
 507         Pimpl::FontList::iterator endit = pimpl_->fontlist.end();
 508         for (; it != endit; ++it) {
 509                 if (it->pos() >= pos)
 510                         break;
 511         }
 512         unsigned int i = std::distance(beg, it);
 513         bool notfound = (it == endit);
 514
 515         if (!notfound && pimpl_->fontlist[i].font() == font)
 516                 return;
 517
 518         bool begin = pos == 0 || notfound ||
 519                 (i > 0 && pimpl_->fontlist[i - 1].pos() == pos - 1);
 520         // Is position pos is a beginning of a font block?
 521         bool end = !notfound && pimpl_->fontlist[i].pos() == pos;
 522         // Is position pos is the end of a font block?
 523         if (begin && end) { // A single char block
 524                 if (i + 1 < pimpl_->fontlist.size() &&
 525                     pimpl_->fontlist[i + 1].font() == font) {
 526                         // Merge the singleton block with the next block
 527                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 528                         if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 529                                 pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i - 1);
 530                 } else if (i > 0 && pimpl_->fontlist[i - 1].font() == font) {
 531                         // Merge the singleton block with the previous block
 532                         pimpl_->fontlist[i - 1].pos(pos);
 533                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 534                 } else
 535                         pimpl_->fontlist[i].font(font);
 536         } else if (begin) {
 537                 if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 538                         pimpl_->fontlist[i - 1].pos(pos);
 539                 else
 540                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 541                                         Pimpl::FontTable(pos, font));
 542         } else if (end) {
 543                 pimpl_->fontlist[i].pos(pos - 1);
 544                 if (!(i + 1 < pimpl_->fontlist.size() &&
 545                       pimpl_->fontlist[i + 1].font() == font))
 546                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 547                                         Pimpl::FontTable(pos, font));
 548         } else { // The general case. The block is splitted into 3 blocks
 549                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 550                                 Pimpl::FontTable(pos - 1, pimpl_->fontlist[i].font()));
 551                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 552                                 Pimpl::FontTable(pos, font));
 553         }
 554 }
 555
 556
 557 void Paragraph::makeSameLayout(Paragraph const & par)
 558 {
 559         layout(par.layout());
 560         // move to pimpl?
 561         params() = par.params();
 562 }
 563
 564
 565 int Paragraph::stripLeadingSpaces()
 566 {
 567         if (isFreeSpacing())
 568                 return 0;
 569
 570         int i = 0;
 571         while (!empty() && (isNewline(0) || isLineSeparator(0))) {
 572                 pimpl_->eraseIntern(0);
 573                 ++i;
 574         }
 575
 576         return i;
 577 }
 578
 579
 580 bool Paragraph::hasSameLayout(Paragraph const & par) const
 581 {
 582         return
 583                 par.layout() == layout() &&
 584                 params().sameLayout(par.params());
 585 }
 586
 587
 588 Paragraph::depth_type Paragraph::getDepth() const
 589 {
 590         return params().depth();
 591 }
 592
 593
 594 Paragraph::depth_type Paragraph::getMaxDepthAfter() const
 595 {
 596         if (layout()->isEnvironment())
 597                 return params().depth() + 1;
 598         else
 599                 return params().depth();
 600 }
 601
 602
 603 char Paragraph::getAlign() const
 604 {
 605         return params().align();
 606 }
 607
 608
 609 string const & Paragraph::getLabelstring() const
 610 {
 611         return params().labelString();
 612 }
 613
 614
 615 // the next two functions are for the manual labels
 616 string const Paragraph::getLabelWidthString() const
 617 {
 618         if (!params().labelWidthString().empty())
 619                 return params().labelWidthString();
 620         else
 621                 return _("Senseless with this layout!");
 622 }
 623
 624
 625 void Paragraph::setLabelWidthString(string const & s)
 626 {
 627         params().labelWidthString(s);
 628 }
 629
 630
 631 void Paragraph::applyLayout(LyXLayout_ptr const & new_layout)
 632 {
 633         layout(new_layout);
 634         params().labelWidthString(string());
 635         params().align(LYX_ALIGN_LAYOUT);
 636         params().spaceTop(VSpace(VSpace::NONE));
 637         params().spaceBottom(VSpace(VSpace::NONE));
 638         params().spacing(Spacing(Spacing::Default));
 639 }
 640
 641
 642 int Paragraph::beginningOfBody() const
 643 {
 644         if (layout()->labeltype != LABEL_MANUAL)
 645                 return 0;
 646
 647         // Unroll the first two cycles of the loop
 648         // and remember the previous character to
 649         // remove unnecessary getChar() calls
 650         pos_type i = 0;
 651         if (i < size() && !isNewline(i)) {
 652                 ++i;
 653                 char previous_char = 0;
 654                 char temp = 0;
 655                 if (i < size()) {
 656                         previous_char = getChar(i);
 657                         if (!isNewline(i)) {
 658                                 ++i;
 659                                 while (i < size() && previous_char != ' ') {
 660                                         temp = getChar(i);
 661                                         if (isNewline(i))
 662                                                 break;
 663
 664                                         ++i;
 665                                         previous_char = temp;
 666                                 }
 667                         }
 668                 }
 669         }
 670
 671         return i;
 672 }
 673
 674
 675 // returns -1 if inset not found
 676 int Paragraph::getPositionOfInset(InsetOld const * inset) const
 677 {
 678         // Find the entry.
 679         InsetList::const_iterator it = insetlist.begin();
 680         InsetList::const_iterator end = insetlist.end();
 681         for (; it != end; ++it)
 682                 if (it->inset == inset)
 683                         return it->pos;
 684         return -1;
 685 }
 686
 687
 688 InsetBibitem * Paragraph::bibitem() const
 689 {
 690         InsetList::const_iterator it = insetlist.begin();
 691         if (it != insetlist.end() && it->inset->lyxCode() == InsetOld::BIBTEX_CODE)
 692                 return static_cast<InsetBibitem *>(it->inset);
 693         return 0;
 694 }
 695
 696
 697 namespace {
 698
 699 /* paragraphs inside floats need different alignment tags to avoid
 700 unwanted space */
 701
 702 bool noTrivlistCentering(UpdatableInset const * inset)
 703 {
 704         if (inset && inset->owner()) {
 705                 InsetOld::Code const code = inset->owner()->lyxCode();
 706                 return code == InsetOld::FLOAT_CODE ||
 707                         code == InsetOld::WRAP_CODE;
 708         }
 709         return false;
 710 }
 711
 712
 713 string correction(string const & orig)
 714 {
 715         if (orig == "flushleft")
 716                 return "raggedright";
 717         if (orig == "flushright")
 718                 return "raggedleft";
 719         if (orig == "center")
 720                 return "centering";
 721         return orig;
 722 }
 723
 724
 725 string const corrected_env(string const & suffix, string const & env,
 726                            UpdatableInset const * inset)
 727 {
 728         string output = suffix + "{";
 729         if (noTrivlistCentering(inset))
 730                 output += correction(env);
 731         else
 732                 output += env;
 733         return output + "}";
 734 }
 735
 736 } // namespace anon
 737
 738
 739 // This could go to ParagraphParameters if we want to
 740 int Paragraph::startTeXParParams(BufferParams const & bparams,
 741                                  ostream & os, bool moving_arg) const
 742 {
 743         int column = 0;
 744
 745         if (params().noindent()) {
 746                 os << "\\noindent ";
 747                 column += 10;
 748         }
 749
 750         switch (params().align()) {
 751         case LYX_ALIGN_NONE:
 752         case LYX_ALIGN_BLOCK:
 753         case LYX_ALIGN_LAYOUT:
 754         case LYX_ALIGN_SPECIAL:
 755                 break;
 756         case LYX_ALIGN_LEFT:
 757         case LYX_ALIGN_RIGHT:
 758         case LYX_ALIGN_CENTER:
 759                 if (moving_arg) {
 760                         os << "\\protect";
 761                         column = 8;
 762                 }
 763                 break;
 764         }
 765
 766         switch (params().align()) {
 767         case LYX_ALIGN_NONE:
 768         case LYX_ALIGN_BLOCK:
 769         case LYX_ALIGN_LAYOUT:
 770         case LYX_ALIGN_SPECIAL:
 771                 break;
 772         case LYX_ALIGN_LEFT: {
 773                 string output;
 774                 UpdatableInset const * const inset = pimpl_->inset_owner;
 775                 if (getParLanguage(bparams)->babel() != "hebrew")
 776                         output = corrected_env("\\begin", "flushleft", inset);
 777                 else
 778                         output = corrected_env("\\begin", "flushright", inset);
 779                 os << output;
 780                 column += output.size();
 781                 break;
 782         } case LYX_ALIGN_RIGHT: {
 783                 string output;
 784                 UpdatableInset const * const inset = pimpl_->inset_owner;
 785                 if (getParLanguage(bparams)->babel() != "hebrew")
 786                         output = corrected_env("\\begin", "flushright", inset);
 787                 else
 788                         output = corrected_env("\\begin", "flushleft", inset);
 789                 os << output;
 790                 column += output.size();
 791                 break;
 792         } case LYX_ALIGN_CENTER: {
 793                 string output;
 794                 output = corrected_env("\\begin", "center", pimpl_->inset_owner);
 795                 os << output;
 796                 column += output.size();
 797                 break;
 798         }
 799         }
 800
 801         return column;
 802 }
 803
 804
 805 // This could go to ParagraphParameters if we want to
 806 int Paragraph::endTeXParParams(BufferParams const & bparams,
 807                                ostream & os, bool moving_arg) const
 808 {
 809         int column = 0;
 810
 811         switch (params().align()) {
 812         case LYX_ALIGN_NONE:
 813         case LYX_ALIGN_BLOCK:
 814         case LYX_ALIGN_LAYOUT:
 815         case LYX_ALIGN_SPECIAL:
 816                 break;
 817         case LYX_ALIGN_LEFT:
 818         case LYX_ALIGN_RIGHT:
 819         case LYX_ALIGN_CENTER:
 820                 if (moving_arg) {
 821                         os << "\\protect";
 822                         column = 8;
 823                 }
 824                 break;
 825         }
 826
 827         switch (params().align()) {
 828         case LYX_ALIGN_NONE:
 829         case LYX_ALIGN_BLOCK:
 830         case LYX_ALIGN_LAYOUT:
 831         case LYX_ALIGN_SPECIAL:
 832                 break;
 833         case LYX_ALIGN_LEFT: {
 834                 string output;
 835                 UpdatableInset const * const inset = pimpl_->inset_owner;
 836                 if (getParLanguage(bparams)->babel() != "hebrew")
 837                         output = corrected_env("\\par\\end", "flushleft", inset);
 838                 else
 839                         output = corrected_env("\\par\\end", "flushright", inset);
 840                 os << output;
 841                 column += output.size();
 842                 break;
 843         } case LYX_ALIGN_RIGHT: {
 844                 string output;
 845                 UpdatableInset const * const inset = pimpl_->inset_owner;
 846                 if (getParLanguage(bparams)->babel() != "hebrew")
 847                         output = corrected_env("\\par\\end", "flushright", inset);
 848                 else
 849                         output = corrected_env("\\par\\end", "flushleft", inset);
 850                 os << output;
 851                 column += output.size();
 852                 break;
 853         } case LYX_ALIGN_CENTER: {
 854                 string output;
 855                 output = corrected_env("\\par\\end", "center", pimpl_->inset_owner);
 856                 os << output;
 857                 column += output.size();
 858                 break;
 859         }
 860         }
 861
 862         return column;
 863 }
 864
 865
 866 // This one spits out the text of the paragraph
 867 bool Paragraph::simpleTeXOnePar(Buffer const & buf,
 868                                 BufferParams const & bparams,
 869                                 LyXFont const & outerfont,
 870                                 ostream & os, TexRow & texrow,
 871                                 LatexRunParams const & runparams)
 872 {
 873         lyxerr[Debug::LATEX] << "SimpleTeXOnePar...     " << this << endl;
 874
 875         bool return_value = false;
 876
 877         LyXLayout_ptr style;
 878
 879         // well we have to check if we are in an inset with unlimited
 880         // length (all in one row) if that is true then we don't allow
 881         // any special options in the paragraph and also we don't allow
 882         // any environment other then "Standard" to be valid!
 883         bool asdefault =
 884                 (inInset() && inInset()->forceDefaultParagraphs(inInset()));
 885
 886         if (asdefault) {
 887                 style = bparams.getLyXTextClass().defaultLayout();
 888         } else {
 889                 style = layout();
 890         }
 891
 892         LyXFont basefont;
 893
 894         // Maybe we have to create a optional argument.
 895         pos_type body_pos;
 896
 897         // FIXME: can we actually skip this check and just call
 898         // beginningOfBody() ??
 899         if (style->labeltype != LABEL_MANUAL) {
 900                 body_pos = 0;
 901         } else {
 902                 body_pos = beginningOfBody();
 903         }
 904
 905         unsigned int column = 0;
 906
 907         if (body_pos > 0) {
 908                 os << '[';
 909                 ++column;
 910                 basefont = getLabelFont(bparams, outerfont);
 911         } else {
 912                 basefont = getLayoutFont(bparams, outerfont);
 913         }
 914
 915         bool moving_arg = runparams.moving_arg;
 916         moving_arg |= style->needprotect;
 917
 918         // Which font is currently active?
 919         LyXFont running_font(basefont);
 920         // Do we have an open font change?
 921         bool open_font = false;
 922
 923         Change::Type running_change = Change::UNCHANGED;
 924
 925         texrow.start(id(), 0);
 926
 927         // if the paragraph is empty, the loop will not be entered at all
 928         if (empty()) {
 929                 if (style->isCommand()) {
 930                         os << '{';
 931                         ++column;
 932                 }
 933                 if (!asdefault)
 934                         column += startTeXParParams(bparams, os, moving_arg);
 935
 936         }
 937
 938         for (pos_type i = 0; i < size(); ++i) {
 939                 ++column;
 940                 // First char in paragraph or after label?
 941                 if (i == body_pos) {
 942                         if (body_pos > 0) {
 943                                 if (open_font) {
 944                                         column += running_font.latexWriteEndChanges(os, basefont, basefont);
 945                                         open_font = false;
 946                                 }
 947                                 basefont = getLayoutFont(bparams, outerfont);
 948                                 running_font = basefont;
 949                                 os << ']';
 950                                 ++column;
 951                         }
 952                         if (style->isCommand()) {
 953                                 os << '{';
 954                                 ++column;
 955                         }
 956
 957                         if (!asdefault)
 958                                 column += startTeXParParams(bparams, os,
 959                                                             moving_arg);
 960                 }
 961
 962                 value_type c = getChar(i);
 963
 964                 // Fully instantiated font
 965                 LyXFont font = getFont(bparams, i, outerfont);
 966
 967                 LyXFont const last_font = running_font;
 968
 969                 // Spaces at end of font change are simulated to be
 970                 // outside font change, i.e. we write "\textXX{text} "
 971                 // rather than "\textXX{text }". (Asger)
 972                 if (open_font && c == ' ' && i <= size() - 2) {
 973                         LyXFont const & next_font = getFont(bparams, i + 1, outerfont);
 974                         if (next_font != running_font
 975                             && next_font != font) {
 976                                 font = next_font;
 977                         }
 978                 }
 979
 980                 // We end font definition before blanks
 981                 if (open_font &&
 982                     (font != running_font ||
 983                      font.language() != running_font.language()))
 984                 {
 985                         column += running_font.latexWriteEndChanges(os,
 986                                                                     basefont,
 987                                                                     (i == body_pos-1) ? basefont : font);
 988                         running_font = basefont;
 989                         open_font = false;
 990                 }
 991
 992                 // Blanks are printed before start of fontswitch
 993                 if (c == ' ') {
 994                         // Do not print the separation of the optional argument
 995                         if (i != body_pos - 1) {
 996                                 pimpl_->simpleTeXBlanks(os, texrow, i,
 997                                                        column, font, *style);
 998                         }
 999                 }
1000
1001                 // Do we need to change font?
1002                 if ((font != running_font ||
1003                      font.language() != running_font.language()) &&
1004                         i != body_pos - 1)
1005                 {
1006                         column += font.latexWriteStartChanges(os, basefont,
1007                                                               last_font);
1008                         running_font = font;
1009                         open_font = true;
1010                 }
1011
1012                 Change::Type change = pimpl_->lookupChange(i);
1013
1014                 column += Changes::latexMarkChange(os, running_change, change);
1015                 running_change = change;
1016
1017                 LatexRunParams rp = runparams;
1018                 rp.moving_arg = moving_arg;
1019                 rp.free_spacing = style->free_spacing;
1020                 pimpl_->simpleTeXSpecialChars(buf, bparams,
1021                                               os, texrow, runparams,
1022                                               font, running_font,
1023                                               basefont, outerfont, open_font,
1024                                               running_change,
1025                                               *style, i, column, c);
1026         }
1027
1028         column += Changes::latexMarkChange(os,
1029                         running_change, Change::UNCHANGED);
1030
1031         // If we have an open font definition, we have to close it
1032         if (open_font) {
1033 #ifdef FIXED_LANGUAGE_END_DETECTION
1034                 if (next_) {
1035                         running_font
1036                                 .latexWriteEndChanges(os, basefont,
1037                                                       next_->getFont(bparams,
1038                                                       0, outerfont));
1039                 } else {
1040                         running_font.latexWriteEndChanges(os, basefont,
1041                                                           basefont);
1042                 }
1043 #else
1044 #ifdef WITH_WARNINGS
1045 //#warning For now we ALWAYS have to close the foreign font settings if they are
1046 //#warning there as we start another \selectlanguage with the next paragraph if
1047 //#warning we are in need of this. This should be fixed sometime (Jug)
1048 #endif
1049                 running_font.latexWriteEndChanges(os, basefont,  basefont);
1050 #endif
1051         }
1052
1053         // Needed if there is an optional argument but no contents.
1054         if (body_pos > 0 && body_pos == size()) {
1055                 os << "]~";
1056                 return_value = false;
1057         }
1058
1059         if (!asdefault) {
1060                 column += endTeXParParams(bparams, os, moving_arg);
1061         }
1062
1063         lyxerr[Debug::LATEX] << "SimpleTeXOnePar...done " << this << endl;
1064         return return_value;
1065 }
1066
1067
1068 namespace {
1069
1070 // checks, if newcol chars should be put into this line
1071 // writes newline, if necessary.
1072 void sgmlLineBreak(ostream & os, string::size_type & colcount,
1073                           string::size_type newcol)
1074 {
1075         colcount += newcol;
1076         if (colcount > lyxrc.ascii_linelen) {
1077                 os << "\n";
1078                 colcount = newcol; // assume write after this call
1079         }
1080 }
1081
1082 enum PAR_TAG {
1083         NONE=0,
1084         TT = 1,
1085         SF = 2,
1086         BF = 4,
1087         IT = 8,
1088         SL = 16,
1089         EM = 32
1090 };
1091
1092
1093 string tag_name(PAR_TAG const & pt) {
1094         switch (pt) {
1095         case NONE: return "!-- --";
1096         case TT: return "tt";
1097         case SF: return "sf";
1098         case BF: return "bf";
1099         case IT: return "it";
1100         case SL: return "sl";
1101         case EM: return "em";
1102         }
1103         return "";
1104 }
1105
1106
1107 inline
1108 void operator|=(PAR_TAG & p1, PAR_TAG const & p2)
1109 {
1110         p1 = static_cast<PAR_TAG>(p1 | p2);
1111 }
1112
1113
1114 inline
1115 void reset(PAR_TAG & p1, PAR_TAG const & p2)
1116 {
1117         p1 = static_cast<PAR_TAG>(p1 & ~p2);
1118 }
1119
1120 } // anon
1121
1122
1123 // Handle internal paragraph parsing -- layout already processed.
1124 void Paragraph::simpleLinuxDocOnePar(Buffer const & buf,
1125                                      ostream & os,
1126                                      LyXFont const & outerfont,
1127                                      lyx::depth_type /*depth*/) const
1128 {
1129         LyXLayout_ptr const & style = layout();
1130
1131         string::size_type char_line_count = 5;     // Heuristic choice ;-)
1132
1133         // gets paragraph main font
1134         LyXFont font_old;
1135         bool desc_on;
1136         if (style->labeltype == LABEL_MANUAL) {
1137                 font_old = style->labelfont;
1138                 desc_on = true;
1139         } else {
1140                 font_old = style->font;
1141                 desc_on = false;
1142         }
1143
1144         LyXFont::FONT_FAMILY family_type = LyXFont::ROMAN_FAMILY;
1145         LyXFont::FONT_SERIES series_type = LyXFont::MEDIUM_SERIES;
1146         LyXFont::FONT_SHAPE  shape_type  = LyXFont::UP_SHAPE;
1147         bool is_em = false;
1148
1149         stack<PAR_TAG> tag_state;
1150         // parsing main loop
1151         for (pos_type i = 0; i < size(); ++i) {
1152
1153                 PAR_TAG tag_close = NONE;
1154                 list < PAR_TAG > tag_open;
1155
1156                 LyXFont const font = getFont(buf.params(), i, outerfont);
1157
1158                 if (font_old.family() != font.family()) {
1159                         switch (family_type) {
1160                         case LyXFont::SANS_FAMILY:
1161                                 tag_close |= SF;
1162                                 break;
1163                         case LyXFont::TYPEWRITER_FAMILY:
1164                                 tag_close |= TT;
1165                                 break;
1166                         default:
1167                                 break;
1168                         }
1169
1170                         family_type = font.family();
1171
1172                         switch (family_type) {
1173                         case LyXFont::SANS_FAMILY:
1174                                 tag_open.push_back(SF);
1175                                 break;
1176                         case LyXFont::TYPEWRITER_FAMILY:
1177                                 tag_open.push_back(TT);
1178                                 break;
1179                         default:
1180                                 break;
1181                         }
1182                 }
1183
1184                 if (font_old.series() != font.series()) {
1185                         switch (series_type) {
1186                         case LyXFont::BOLD_SERIES:
1187                                 tag_close |= BF;
1188                                 break;
1189                         default:
1190                                 break;
1191                         }
1192
1193                         series_type = font.series();
1194
1195                         switch (series_type) {
1196                         case LyXFont::BOLD_SERIES:
1197                                 tag_open.push_back(BF);
1198                                 break;
1199                         default:
1200                                 break;
1201                         }
1202
1203                 }
1204
1205                 if (font_old.shape() != font.shape()) {
1206                         switch (shape_type) {
1207                         case LyXFont::ITALIC_SHAPE:
1208                                 tag_close |= IT;
1209                                 break;
1210                         case LyXFont::SLANTED_SHAPE:
1211                                 tag_close |= SL;
1212                                 break;
1213                         default:
1214                                 break;
1215                         }
1216
1217                         shape_type = font.shape();
1218
1219                         switch (shape_type) {
1220                         case LyXFont::ITALIC_SHAPE:
1221                                 tag_open.push_back(IT);
1222                                 break;
1223                         case LyXFont::SLANTED_SHAPE:
1224                                 tag_open.push_back(SL);
1225                                 break;
1226                         default:
1227                                 break;
1228                         }
1229                 }
1230                 // handle <em> tag
1231                 if (font_old.emph() != font.emph()) {
1232                         if (font.emph() == LyXFont::ON) {
1233                                 tag_open.push_back(EM);
1234                                 is_em = true;
1235                         }
1236                         else if (is_em) {
1237                                 tag_close |= EM;
1238                                 is_em = false;
1239                         }
1240                 }
1241
1242                 list < PAR_TAG > temp;
1243                 while (!tag_state.empty() && tag_close) {
1244                         PAR_TAG k =  tag_state.top();
1245                         tag_state.pop();
1246                         os << "</" << tag_name(k) << '>';
1247                         if (tag_close & k)
1248                                 reset(tag_close,k);
1249                         else
1250                                 temp.push_back(k);
1251                 }
1252
1253                 for(list< PAR_TAG >::const_iterator j = temp.begin();
1254                     j != temp.end(); ++j) {
1255                         tag_state.push(*j);
1256                         os << '<' << tag_name(*j) << '>';
1257                 }
1258
1259                 for(list< PAR_TAG >::const_iterator j = tag_open.begin();
1260                     j != tag_open.end(); ++j) {
1261                         tag_state.push(*j);
1262                         os << '<' << tag_name(*j) << '>';
1263                 }
1264
1265                 char c = getChar(i);
1266
1267                 if (c == Paragraph::META_INSET) {
1268                         InsetOld const * inset = getInset(i);
1269                         inset->linuxdoc(buf, os);
1270                         font_old = font;
1271                         continue;
1272                 }
1273
1274                 if (style->latexparam() == "CDATA") {
1275                         // "TeX"-Mode on == > SGML-Mode on.
1276                         if (c != '\0')
1277                                 os << c;
1278                         ++char_line_count;
1279                 } else {
1280                         bool ws;
1281                         string str;
1282                         boost::tie(ws, str) = sgml::escapeChar(c);
1283                         if (ws && !isFreeSpacing()) {
1284                                 // in freespacing mode, spaces are
1285                                 // non-breaking characters
1286                                 if (desc_on) {// if char is ' ' then...
1287
1288                                         ++char_line_count;
1289                                         sgmlLineBreak(os, char_line_count, 6);
1290                                         os << "</tag>";
1291                                         desc_on = false;
1292                                 } else  {
1293                                         sgmlLineBreak(os, char_line_count, 1);
1294                                         os << c;
1295                                 }
1296                         } else {
1297                                 os << str;
1298                                 char_line_count += str.length();
1299                         }
1300                 }
1301                 font_old = font;
1302         }
1303
1304         while (!tag_state.empty()) {
1305                 os << "</" << tag_name(tag_state.top()) << '>';
1306                 tag_state.pop();
1307         }
1308
1309         // resets description flag correctly
1310         if (desc_on) {
1311                 // <tag> not closed...
1312                 sgmlLineBreak(os, char_line_count, 6);
1313                 os << "</tag>";
1314         }
1315 }
1316
1317
1318 void Paragraph::simpleDocBookOnePar(Buffer const & buf,
1319                                     ostream & os,
1320                                     LyXFont const & outerfont,
1321                                     int & desc_on,
1322                                     lyx::depth_type depth) const
1323 {
1324         bool emph_flag = false;
1325
1326         LyXLayout_ptr const & style = layout();
1327
1328         LyXFont font_old = (style->labeltype == LABEL_MANUAL ? style->labelfont : style->font);
1329
1330         int char_line_count = depth;
1331         //if (!style.free_spacing)
1332         //      os << string(depth,' ');
1333
1334         // parsing main loop
1335         for (pos_type i = 0; i < size(); ++i) {
1336                 LyXFont font = getFont(buf.params(), i, outerfont);
1337
1338                 // handle <emphasis> tag
1339                 if (font_old.emph() != font.emph()) {
1340                         if (font.emph() == LyXFont::ON) {
1341                                 if (style->latexparam() == "CDATA")
1342                                         os << "]]>";
1343                                 os << "<emphasis>";
1344                                 if (style->latexparam() == "CDATA")
1345                                         os << "<![CDATA[";
1346                                 emph_flag = true;
1347                         } else if (i) {
1348                                 if (style->latexparam() == "CDATA")
1349                                         os << "]]>";
1350                                 os << "</emphasis>";
1351                                 if (style->latexparam() == "CDATA")
1352                                         os << "<![CDATA[";
1353                                 emph_flag = false;
1354                         }
1355                 }
1356
1357
1358                 if (isInset(i)) {
1359                         InsetOld const * inset = getInset(i);
1360                         // don't print the inset in position 0 if desc_on == 3 (label)
1361                         if (i || desc_on != 3) {
1362                                 if (style->latexparam() == "CDATA")
1363                                         os << "]]>";
1364                                 inset->docbook(buf, os, false);
1365                                 if (style->latexparam() == "CDATA")
1366                                         os << "<![CDATA[";
1367                         }
1368                 } else {
1369                         char c = getChar(i);
1370                         bool ws;
1371                         string str;
1372                         boost::tie(ws, str) = sgml::escapeChar(c);
1373
1374                         if (style->pass_thru) {
1375                                 os << c;
1376                         } else if (isFreeSpacing() || c != ' ') {
1377                                         os << str;
1378                         } else if (desc_on == 1) {
1379                                 ++char_line_count;
1380                                 os << "\n</term><listitem><para>";
1381                                 desc_on = 2;
1382                         } else {
1383                                 os << ' ';
1384                         }
1385                 }
1386                 font_old = font;
1387         }
1388
1389         if (emph_flag) {
1390                 if (style->latexparam() == "CDATA")
1391                         os << "]]>";
1392                 os << "</emphasis>";
1393                 if (style->latexparam() == "CDATA")
1394                         os << "<![CDATA[";
1395         }
1396
1397         // resets description flag correctly
1398         if (desc_on == 1) {
1399                 // <term> not closed...
1400                 os << "</term>\n<listitem><para>&nbsp;</para>";
1401         }
1402         if (style->free_spacing)
1403                 os << '\n';
1404 }
1405
1406
1407 namespace {
1408
1409 /// return true if the char is a meta-character for an inset
1410 inline
1411 bool IsInsetChar(char c)
1412 {
1413         return (c == Paragraph::META_INSET);
1414 }
1415
1416 } // namespace anon
1417
1418
1419
1420 bool Paragraph::isHfill(pos_type pos) const
1421 {
1422         return IsInsetChar(getChar(pos))
1423                && getInset(pos)->lyxCode() == InsetOld::HFILL_CODE;
1424 }
1425
1426
1427 bool Paragraph::isInset(pos_type pos) const
1428 {
1429         return IsInsetChar(getChar(pos));
1430 }
1431
1432
1433 bool Paragraph::isNewline(pos_type pos) const
1434 {
1435         return IsInsetChar(getChar(pos))
1436                && getInset(pos)->lyxCode() == InsetOld::NEWLINE_CODE;
1437 }
1438
1439
1440 bool Paragraph::isSeparator(pos_type pos) const
1441 {
1442         return IsSeparatorChar(getChar(pos));
1443 }
1444
1445
1446 bool Paragraph::isLineSeparator(pos_type pos) const
1447 {
1448         value_type const c = getChar(pos);
1449         return IsLineSeparatorChar(c)
1450                 || (IsInsetChar(c) && getInset(pos) &&
1451                 getInset(pos)->isLineSeparator());
1452 }
1453
1454
1455 bool Paragraph::isKomma(pos_type pos) const
1456 {
1457         return IsKommaChar(getChar(pos));
1458 }
1459
1460
1461 /// Used by the spellchecker
1462 bool Paragraph::isLetter(pos_type pos) const
1463 {
1464         value_type const c = getChar(pos);
1465         if (IsLetterChar(c))
1466                 return true;
1467         if (isInset(pos))
1468                 return getInset(pos)->isLetter();
1469         // We want to pass the ' and escape chars to ispell
1470         string const extra = lyxrc.isp_esc_chars + '\'';
1471         return contains(extra, c);
1472 }
1473
1474
1475 bool Paragraph::isWord(pos_type pos) const
1476 {
1477         unsigned char const c = getChar(pos);
1478         return !(IsSeparatorChar(c)
1479                   || IsKommaChar(c)
1480                   || IsInsetChar(c));
1481 }
1482
1483
1484 Language const *
1485 Paragraph::getParLanguage(BufferParams const & bparams) const
1486 {
1487         if (!empty())
1488                 return getFirstFontSettings().language();
1489 #warning FIXME we should check the prev par as well (Lgb)
1490         return bparams.language;
1491 }
1492
1493
1494 bool Paragraph::isRightToLeftPar(BufferParams const & bparams) const
1495 {
1496         return lyxrc.rtl_support
1497                 && getParLanguage(bparams)->RightToLeft()
1498                 && !(inInset() && inInset()->owner() &&
1499                      inInset()->owner()->lyxCode() == InsetOld::ERT_CODE);
1500 }
1501
1502
1503 void Paragraph::changeLanguage(BufferParams const & bparams,
1504                                Language const * from, Language const * to)
1505 {
1506         for (pos_type i = 0; i < size(); ++i) {
1507                 LyXFont font = getFontSettings(bparams, i);
1508                 if (font.language() == from) {
1509                         font.setLanguage(to);
1510                         setFont(i, font);
1511                 }
1512         }
1513 }
1514
1515
1516 bool Paragraph::isMultiLingual(BufferParams const & bparams)
1517 {
1518         Language const * doc_language = bparams.language;
1519         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
1520         Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
1521
1522         for (; cit != end; ++cit)
1523                 if (cit->font().language() != ignore_language &&
1524                     cit->font().language() != latex_language &&
1525                     cit->font().language() != doc_language)
1526                         return true;
1527         return false;
1528 }
1529
1530
1531 // Convert the paragraph to a string.
1532 // Used for building the table of contents
1533 string const Paragraph::asString(Buffer const & buffer, bool label) const
1534 {
1535 #if 0
1536         string s;
1537         if (label && !params().labelString().empty())
1538                 s += params().labelString() + ' ';
1539
1540         for (pos_type i = 0; i < size(); ++i) {
1541                 value_type c = getChar(i);
1542                 if (IsPrintable(c))
1543                         s += c;
1544                 else if (c == META_INSET &&
1545                          getInset(i)->lyxCode() == InsetOld::MATH_CODE) {
1546                         ostringstream os;
1547                         getInset(i)->ascii(buffer, os);
1548                         s += subst(STRCONV(os.str()),'\n',' ');
1549                 }
1550         }
1551
1552         return s;
1553 #else
1554         // This should really be done by the caller and not here.
1555         string ret = asString(buffer, 0, size(), label);
1556         return subst(ret, '\n', ' ');
1557 #endif
1558 }
1559
1560
1561 string const Paragraph::asString(Buffer const & buffer,
1562                                  pos_type beg, pos_type end, bool label) const
1563 {
1564         ostringstream os;
1565
1566         if (beg == 0 && label && !params().labelString().empty())
1567                 os << params().labelString() << ' ';
1568
1569         for (pos_type i = beg; i < end; ++i) {
1570                 value_type const c = getUChar(buffer.params(), i);
1571                 if (IsPrintable(c))
1572                         os << c;
1573                 else if (c == META_INSET)
1574                         getInset(i)->ascii(buffer, os);
1575         }
1576
1577         return os.str();
1578 }
1579
1580
1581 void Paragraph::setInsetOwner(UpdatableInset * inset)
1582 {
1583         pimpl_->inset_owner = inset;
1584         InsetList::iterator it = insetlist.begin();
1585         InsetList::iterator end = insetlist.end();
1586         for (; it != end; ++it)
1587                 if (it->inset)
1588                         it->inset->setOwner(inset);
1589 }
1590
1591
1592 void Paragraph::deleteInsetsLyXText(BufferView * bv)
1593 {
1594         insetlist.deleteInsetsLyXText(bv);
1595 }
1596
1597
1598 void Paragraph::setContentsFromPar(Paragraph const & par)
1599 {
1600         pimpl_->setContentsFromPar(par);
1601 }
1602
1603
1604 void Paragraph::trackChanges(Change::Type type)
1605 {
1606         pimpl_->trackChanges(type);
1607 }
1608
1609
1610 void Paragraph::untrackChanges()
1611 {
1612         pimpl_->untrackChanges();
1613 }
1614
1615
1616 void Paragraph::cleanChanges()
1617 {
1618         pimpl_->cleanChanges();
1619 }
1620
1621
1622 Change::Type Paragraph::lookupChange(lyx::pos_type pos) const
1623 {
1624         BOOST_ASSERT(!size() || pos < size());
1625         return pimpl_->lookupChange(pos);
1626 }
1627
1628
1629 Change const Paragraph::lookupChangeFull(lyx::pos_type pos) const
1630 {
1631         BOOST_ASSERT(!size() || pos < size());
1632         return pimpl_->lookupChangeFull(pos);
1633 }
1634
1635
1636 bool Paragraph::isChanged(pos_type start, pos_type end) const
1637 {
1638         return pimpl_->isChanged(start, end);
1639 }
1640
1641
1642 bool Paragraph::isChangeEdited(pos_type start, pos_type end) const
1643 {
1644         return pimpl_->isChangeEdited(start, end);
1645 }
1646
1647
1648 void Paragraph::setChange(lyx::pos_type pos, Change::Type type)
1649 {
1650         pimpl_->setChange(pos, type);
1651
1652 }
1653
1654
1655 void Paragraph::markErased()
1656 {
1657         pimpl_->markErased();
1658 }
1659
1660
1661 void Paragraph::acceptChange(pos_type start, pos_type end)
1662 {
1663         return pimpl_->acceptChange(start, end);
1664 }
1665
1666
1667 void Paragraph::rejectChange(pos_type start, pos_type end)
1668 {
1669         return pimpl_->rejectChange(start, end);
1670 }
1671
1672
1673 Paragraph::value_type Paragraph::getChar(pos_type pos) const
1674 {
1675         // This is in the critical path!
1676         pos_type const siz = text_.size();
1677
1678         BOOST_ASSERT(0 <= pos);
1679         BOOST_ASSERT(pos <= siz);
1680
1681         if (pos == siz) {
1682                 lyxerr << "getChar() on pos " << pos << " in par id "
1683                        << id() << " of size " << siz
1684                        << "  is a bit silly !" << endl;
1685                 BOOST_ASSERT(false);
1686                 return '\0';
1687         }
1688
1689         return text_[pos];
1690 }
1691
1692
1693 int Paragraph::id() const
1694 {
1695         return pimpl_->id_;
1696 }
1697
1698
1699 LyXLayout_ptr const & Paragraph::layout() const
1700 {
1701 /*
1702         InsetOld * inset = inInset();
1703         if (inset && inset->lyxCode() == InsetOld::ENVIRONMENT_CODE)
1704                 return static_cast<InsetEnvironment*>(inset)->layout();
1705 */
1706         return layout_;
1707 }
1708
1709
1710 void Paragraph::layout(LyXLayout_ptr const & new_layout)
1711 {
1712         layout_ = new_layout;
1713 }
1714
1715
1716 UpdatableInset * Paragraph::inInset() const
1717 {
1718         return pimpl_->inset_owner;
1719 }
1720
1721
1722 void Paragraph::clearContents()
1723 {
1724         text_.clear();
1725 }
1726
1727
1728 void Paragraph::setChar(pos_type pos, value_type c)
1729 {
1730         text_[pos] = c;
1731 }
1732
1733
1734 ParagraphParameters & Paragraph::params()
1735 {
1736         return pimpl_->params;
1737 }
1738
1739
1740 ParagraphParameters const & Paragraph::params() const
1741 {
1742         return pimpl_->params;
1743 }
1744
1745
1746 bool Paragraph::isFreeSpacing() const
1747 {
1748         if (layout()->free_spacing)
1749                 return true;
1750
1751         // for now we just need this, later should we need this in some
1752         // other way we can always add a function to InsetOld too.
1753         if (pimpl_->inset_owner && pimpl_->inset_owner->owner())
1754                 return pimpl_->inset_owner->owner()->lyxCode() == InsetOld::ERT_CODE;
1755         return false;
1756 }
1757
1758
1759 bool Paragraph::allowEmpty() const
1760 {
1761         if (layout()->keepempty)
1762                 return true;
1763         if (pimpl_->inset_owner && pimpl_->inset_owner->owner())
1764                 return pimpl_->inset_owner->owner()->lyxCode() == InsetOld::ERT_CODE;
1765         return false;
1766 }
1767
1768
1769 RowList::iterator Paragraph::getRow(pos_type pos)
1770 {
1771         RowList::iterator rit = rows.end();
1772         RowList::iterator const begin = rows.begin();
1773
1774         for (--rit; rit != begin && rit->pos() > pos; --rit)
1775                 ;
1776
1777         return rit;
1778 }
1779
1780
1781 unsigned char Paragraph::transformChar(unsigned char c, pos_type pos) const
1782 {
1783         if (!Encodings::is_arabic(c))
1784                 if (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 && IsDigit(c))
1785                         return c + (0xb0 - '0');
1786                 else
1787                         return c;
1788
1789         unsigned char const prev_char = pos > 0 ? getChar(pos - 1) : ' ';
1790         unsigned char next_char = ' ';
1791
1792         for (pos_type i = pos + 1, end = size(); i < end; ++i) {
1793                 unsigned char const par_char = getChar(i);
1794                 if (!Encodings::IsComposeChar_arabic(par_char)) {
1795                         next_char = par_char;
1796                         break;
1797                 }
1798         }
1799
1800         if (Encodings::is_arabic(next_char)) {
1801                 if (Encodings::is_arabic(prev_char) &&
1802                         !Encodings::is_arabic_special(prev_char))
1803                         return Encodings::TransformChar(c, Encodings::FORM_MEDIAL);
1804                 else
1805                         return Encodings::TransformChar(c, Encodings::FORM_INITIAL);
1806         } else {
1807                 if (Encodings::is_arabic(prev_char) &&
1808                         !Encodings::is_arabic_special(prev_char))
1809                         return Encodings::TransformChar(c, Encodings::FORM_FINAL);
1810                 else
1811                         return Encodings::TransformChar(c, Encodings::FORM_ISOLATED);
1812         }
1813 }