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 "counters.h"
  26 #include "encoding.h"
  27 #include "debug.h"
  28 #include "gettext.h"
  29 #include "language.h"
  30 #include "LaTeXFeatures.h"
  31 #include "lyxfont.h"
  32 #include "lyxrc.h"
  33 #include "lyxrow.h"
  34 #include "outputparams.h"
  35 #include "paragraph_funcs.h"
  36 #include "ParagraphList_fwd.h"
  37 #include "sgml.h"
  38 #include "texrow.h"
  39 #include "vspace.h"
  40
  41 #include "insets/insetbibitem.h"
  42 #include "insets/insetoptarg.h"
  43
  44 #include "support/lstrings.h"
  45 #include "support/textutils.h"
  46 #include "support/convert.h"
  47
  48 #include <boost/tuple/tuple.hpp>
  49 #include <boost/bind.hpp>
  50
  51 #include <algorithm>
  52 #include <list>
  53 #include <stack>
  54 #include <sstream>
  55
  56 using lyx::pos_type;
  57
  58 using lyx::support::subst;
  59
  60 using std::distance;
  61 using std::endl;
  62 using std::list;
  63 using std::stack;
  64 using std::string;
  65 using std::ostream;
  66 using std::ostringstream;
  67
  68
  69 ParagraphList::ParagraphList()
  70 {}
  71
  72
  73 Paragraph::Paragraph()
  74         : begin_of_body_(0), pimpl_(new Paragraph::Pimpl(this))
  75 {
  76         itemdepth = 0;
  77         params().clear();
  78 }
  79
  80
  81 Paragraph::Paragraph(Paragraph const & par)
  82         :       itemdepth(par.itemdepth), insetlist(par.insetlist),
  83                 dim_(par.dim_),
  84                 rows_(par.rows_), rowSignature_(par.rowSignature_),
  85                 layout_(par.layout_),
  86                 text_(par.text_), begin_of_body_(par.begin_of_body_),
  87           pimpl_(new Paragraph::Pimpl(*par.pimpl_, this))
  88 {
  89         //lyxerr << "Paragraph::Paragraph(Paragraph const&)" << endl;
  90         InsetList::iterator it = insetlist.begin();
  91         InsetList::iterator end = insetlist.end();
  92         for (; it != end; ++it)
  93                 it->inset = it->inset->clone().release();
  94 }
  95
  96
  97 Paragraph & Paragraph::operator=(Paragraph const & par)
  98 {
  99         // needed as we will destroy the pimpl_ before copying it
 100         if (&par != this) {
 101                 itemdepth = par.itemdepth;
 102
 103                 insetlist = par.insetlist;
 104                 InsetList::iterator it = insetlist.begin();
 105                 InsetList::iterator end = insetlist.end();
 106                 for (; it != end; ++it)
 107                         it->inset = it->inset->clone().release();
 108
 109                 rows_ = par.rows_;
 110                 dim_ = par.dim_;
 111                 rowSignature_ = par.rowSignature_;
 112                 layout_ = par.layout();
 113                 text_ = par.text_;
 114                 begin_of_body_ = par.begin_of_body_;
 115
 116                 delete pimpl_;
 117                 pimpl_ = new Pimpl(*par.pimpl_, this);
 118         }
 119         return *this;
 120 }
 121
 122
 123 Paragraph::~Paragraph()
 124 {
 125         delete pimpl_;
 126         //
 127         //lyxerr << "Paragraph::paragraph_id = "
 128         //       << Paragraph::paragraph_id << endl;
 129 }
 130
 131
 132 void Paragraph::write(Buffer const & buf, ostream & os,
 133                           BufferParams const & bparams,
 134                           depth_type & dth) const
 135 {
 136         // The beginning or end of a deeper (i.e. nested) area?
 137         if (dth != params().depth()) {
 138                 if (params().depth() > dth) {
 139                         while (params().depth() > dth) {
 140                                 os << "\n\\begin_deeper";
 141                                 ++dth;
 142                         }
 143                 } else {
 144                         while (params().depth() < dth) {
 145                                 os << "\n\\end_deeper";
 146                                 --dth;
 147                         }
 148                 }
 149         }
 150
 151         // First write the layout
 152         os << "\n\\begin_layout " << layout()->name() << '\n';
 153
 154         params().write(os);
 155
 156         LyXFont font1(LyXFont::ALL_INHERIT, bparams.language);
 157
 158         Change running_change = Change(Change::UNCHANGED);
 159         lyx::time_type const curtime(lyx::current_time());
 160
 161         int column = 0;
 162         for (pos_type i = 0; i <= size(); ++i) {
 163
 164                 Change change = pimpl_->lookupChangeFull(i);
 165                 Changes::lyxMarkChange(os, column, curtime, running_change, change);
 166                 running_change = change;
 167
 168                 if (i == size())
 169                         break;
 170
 171                 // Write font changes
 172                 LyXFont font2 = getFontSettings(bparams, i);
 173                 if (font2 != font1) {
 174                         font2.lyxWriteChanges(font1, os);
 175                         column = 0;
 176                         font1 = font2;
 177                 }
 178
 179                 value_type const c = getChar(i);
 180                 switch (c) {
 181                 case META_INSET:
 182                 {
 183                         InsetBase const * inset = getInset(i);
 184                         if (inset)
 185                                 if (inset->directWrite()) {
 186                                         // international char, let it write
 187                                         // code directly so it's shorter in
 188                                         // the file
 189                                         inset->write(buf, os);
 190                                 } else {
 191                                         if (i)
 192                                                 os << '\n';
 193                                         os << "\\begin_inset ";
 194                                         inset->write(buf, os);
 195                                         os << "\n\\end_inset\n\n";
 196                                         column = 0;
 197                                 }
 198                 }
 199                 break;
 200                 case '\\':
 201                         os << "\n\\backslash\n";
 202                         column = 0;
 203                         break;
 204                 case '.':
 205                         if (i + 1 < size() && getChar(i + 1) == ' ') {
 206                                 os << ".\n";
 207                                 column = 0;
 208                         } else
 209                                 os << '.';
 210                         break;
 211                 default:
 212                         if ((column > 70 && c == ' ')
 213                             || column > 79) {
 214                                 os << '\n';
 215                                 column = 0;
 216                         }
 217                         // this check is to amend a bug. LyX sometimes
 218                         // inserts '\0' this could cause problems.
 219                         if (c != '\0')
 220                                 os << c;
 221                         else
 222                                 lyxerr << "ERROR (Paragraph::writeFile):"
 223                                         " NULL char in structure." << endl;
 224                         ++column;
 225                         break;
 226                 }
 227         }
 228
 229         os << "\n\\end_layout\n";
 230 }
 231
 232
 233 void Paragraph::validate(LaTeXFeatures & features) const
 234 {
 235         pimpl_->validate(features, *layout());
 236 }
 237
 238
 239 void Paragraph::eraseIntern(lyx::pos_type pos)
 240 {
 241         pimpl_->eraseIntern(pos);
 242 }
 243
 244
 245 bool Paragraph::erase(pos_type pos)
 246 {
 247         return pimpl_->erase(pos);
 248 }
 249
 250
 251 int Paragraph::erase(pos_type start, pos_type end)
 252 {
 253         return pimpl_->erase(start, end);
 254 }
 255
 256
 257 void Paragraph::insert(pos_type start, string const & str,
 258                        LyXFont const & font)
 259 {
 260         for (size_t i = 0, n = str.size(); i != n ; ++i)
 261                 insertChar(start + i, str[i], font);
 262 }
 263
 264
 265 void Paragraph::insertChar(pos_type pos, Paragraph::value_type c,
 266                            Change change)
 267 {
 268         pimpl_->insertChar(pos, c, change);
 269 }
 270
 271
 272 void Paragraph::insertChar(pos_type pos, Paragraph::value_type c,
 273                            LyXFont const & font, Change change)
 274 {
 275         pimpl_->insertChar(pos, c, change);
 276         setFont(pos, font);
 277 }
 278
 279
 280 void Paragraph::insertInset(pos_type pos, InsetBase * inset, Change change)
 281 {
 282         pimpl_->insertInset(pos, inset, change);
 283 }
 284
 285
 286 void Paragraph::insertInset(pos_type pos, InsetBase * inset,
 287                             LyXFont const & font, Change change)
 288 {
 289         pimpl_->insertInset(pos, inset, change);
 290         setFont(pos, font);
 291 }
 292
 293
 294 bool Paragraph::insetAllowed(InsetBase_code code)
 295 {
 296         return !pimpl_->inset_owner || pimpl_->inset_owner->insetAllowed(code);
 297 }
 298
 299
 300 // Gets uninstantiated font setting at position.
 301 LyXFont const Paragraph::getFontSettings(BufferParams const & bparams,
 302                                          pos_type pos) const
 303 {
 304         if (pos > size()) {
 305                 lyxerr << " pos: " << pos << " size: " << size() << endl;
 306                 BOOST_ASSERT(pos <= size());
 307         }
 308
 309         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 310         Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
 311         for (; cit != end; ++cit)
 312                 if (cit->pos() >= pos)
 313                         break;
 314
 315         if (cit != end)
 316                 return cit->font();
 317
 318         if (pos == size() && !empty())
 319                 return getFontSettings(bparams, pos - 1);
 320
 321         return LyXFont(LyXFont::ALL_INHERIT, getParLanguage(bparams));
 322 }
 323
 324
 325 FontSpan Paragraph::fontSpan(lyx::pos_type pos) const
 326 {
 327         BOOST_ASSERT(pos <= size());
 328         lyx::pos_type start = 0;
 329
 330         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 331         Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
 332         for (; cit != end; ++cit) {
 333                 if (cit->pos() >= pos) {
 334                         if (pos >= beginOfBody())
 335                                 return FontSpan(std::max(start, beginOfBody()),
 336                                                 cit->pos());
 337                         else
 338                                 return FontSpan(start,
 339                                                 std::min(beginOfBody() - 1,
 340                                                          cit->pos()));
 341                 }
 342                 start = cit->pos() + 1;
 343         }
 344
 345         // This should not happen, but if so, we take no chances.
 346         //lyxerr << "Paragraph::getEndPosOfFontSpan: This should not happen!"
 347         //      << endl;
 348         return FontSpan(pos, pos);
 349 }
 350
 351
 352 // Gets uninstantiated font setting at position 0
 353 LyXFont const Paragraph::getFirstFontSettings(BufferParams const & bparams) const
 354 {
 355         if (!empty() && !pimpl_->fontlist.empty())
 356                 return pimpl_->fontlist[0].font();
 357
 358         return LyXFont(LyXFont::ALL_INHERIT, bparams.language);
 359 }
 360
 361
 362 // Gets the fully instantiated font at a given position in a paragraph
 363 // This is basically the same function as LyXText::GetFont() in text2.C.
 364 // The difference is that this one is used for generating the LaTeX file,
 365 // and thus cosmetic "improvements" are disallowed: This has to deliver
 366 // the true picture of the buffer. (Asger)
 367 LyXFont const Paragraph::getFont(BufferParams const & bparams, pos_type pos,
 368                                  LyXFont const & outerfont) const
 369 {
 370         BOOST_ASSERT(pos >= 0);
 371
 372         LyXLayout_ptr const & lout = layout();
 373
 374         pos_type const body_pos = beginOfBody();
 375
 376         LyXFont layoutfont;
 377         if (pos < body_pos)
 378                 layoutfont = lout->labelfont;
 379         else
 380                 layoutfont = lout->font;
 381
 382         LyXFont font = getFontSettings(bparams, pos);
 383         font.realize(layoutfont);
 384         font.realize(outerfont);
 385         font.realize(bparams.getLyXTextClass().defaultfont());
 386
 387         return font;
 388 }
 389
 390
 391 LyXFont const Paragraph::getLabelFont
 392         (BufferParams const & bparams, LyXFont const & outerfont) const
 393 {
 394         LyXFont tmpfont = layout()->labelfont;
 395         tmpfont.setLanguage(getParLanguage(bparams));
 396         tmpfont.realize(outerfont);
 397         tmpfont.realize(bparams.getLyXTextClass().defaultfont());
 398         return tmpfont;
 399 }
 400
 401
 402 LyXFont const Paragraph::getLayoutFont
 403         (BufferParams const & bparams, LyXFont const & outerfont) const
 404 {
 405         LyXFont tmpfont = layout()->font;
 406         tmpfont.setLanguage(getParLanguage(bparams));
 407         tmpfont.realize(outerfont);
 408         tmpfont.realize(bparams.getLyXTextClass().defaultfont());
 409         return tmpfont;
 410 }
 411
 412
 413 /// Returns the height of the highest font in range
 414 LyXFont_size Paragraph::highestFontInRange
 415         (pos_type startpos, pos_type endpos, LyXFont_size def_size) const
 416 {
 417         if (pimpl_->fontlist.empty())
 418                 return def_size;
 419
 420         Pimpl::FontList::const_iterator end_it = pimpl_->fontlist.begin();
 421         Pimpl::FontList::const_iterator const end = pimpl_->fontlist.end();
 422         for (; end_it != end; ++end_it) {
 423                 if (end_it->pos() >= endpos)
 424                         break;
 425         }
 426
 427         if (end_it != end)
 428                 ++end_it;
 429
 430         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 431         for (; cit != end; ++cit) {
 432                 if (cit->pos() >= startpos)
 433                         break;
 434         }
 435
 436         LyXFont::FONT_SIZE maxsize = LyXFont::SIZE_TINY;
 437         for (; cit != end_it; ++cit) {
 438                 LyXFont::FONT_SIZE size = cit->font().size();
 439                 if (size == LyXFont::INHERIT_SIZE)
 440                         size = def_size;
 441                 if (size > maxsize && size <= LyXFont::SIZE_HUGER)
 442                         maxsize = size;
 443         }
 444         return maxsize;
 445 }
 446
 447
 448 Paragraph::value_type
 449 Paragraph::getUChar(BufferParams const & bparams, pos_type pos) const
 450 {
 451         value_type c = getChar(pos);
 452         if (!lyxrc.rtl_support)
 453                 return c;
 454
 455         value_type uc = c;
 456         switch (c) {
 457         case '(':
 458                 uc = ')';
 459                 break;
 460         case ')':
 461                 uc = '(';
 462                 break;
 463         case '[':
 464                 uc = ']';
 465                 break;
 466         case ']':
 467                 uc = '[';
 468                 break;
 469         case '{':
 470                 uc = '}';
 471                 break;
 472         case '}':
 473                 uc = '{';
 474                 break;
 475         case '<':
 476                 uc = '>';
 477                 break;
 478         case '>':
 479                 uc = '<';
 480                 break;
 481         }
 482         if (uc != c && getFontSettings(bparams, pos).isRightToLeft())
 483                 return uc;
 484         else
 485                 return c;
 486 }
 487
 488
 489 void Paragraph::setFont(pos_type pos, LyXFont const & font)
 490 {
 491         BOOST_ASSERT(pos <= size());
 492
 493         // First, reduce font against layout/label font
 494         // Update: The setCharFont() routine in text2.C already
 495         // reduces font, so we don't need to do that here. (Asger)
 496         // No need to simplify this because it will disappear
 497         // in a new kernel. (Asger)
 498         // Next search font table
 499
 500         Pimpl::FontList::iterator beg = pimpl_->fontlist.begin();
 501         Pimpl::FontList::iterator it = beg;
 502         Pimpl::FontList::iterator endit = pimpl_->fontlist.end();
 503         for (; it != endit; ++it) {
 504                 if (it->pos() >= pos)
 505                         break;
 506         }
 507         size_t const i = distance(beg, it);
 508         bool notfound = (it == endit);
 509
 510         if (!notfound && pimpl_->fontlist[i].font() == font)
 511                 return;
 512
 513         bool begin = pos == 0 || notfound ||
 514                 (i > 0 && pimpl_->fontlist[i - 1].pos() == pos - 1);
 515         // Is position pos is a beginning of a font block?
 516         bool end = !notfound && pimpl_->fontlist[i].pos() == pos;
 517         // Is position pos is the end of a font block?
 518         if (begin && end) { // A single char block
 519                 if (i + 1 < pimpl_->fontlist.size() &&
 520                     pimpl_->fontlist[i + 1].font() == font) {
 521                         // Merge the singleton block with the next block
 522                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 523                         if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 524                                 pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i - 1);
 525                 } else if (i > 0 && pimpl_->fontlist[i - 1].font() == font) {
 526                         // Merge the singleton block with the previous block
 527                         pimpl_->fontlist[i - 1].pos(pos);
 528                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 529                 } else
 530                         pimpl_->fontlist[i].font(font);
 531         } else if (begin) {
 532                 if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 533                         pimpl_->fontlist[i - 1].pos(pos);
 534                 else
 535                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 536                                         Pimpl::FontTable(pos, font));
 537         } else if (end) {
 538                 pimpl_->fontlist[i].pos(pos - 1);
 539                 if (!(i + 1 < pimpl_->fontlist.size() &&
 540                       pimpl_->fontlist[i + 1].font() == font))
 541                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 542                                         Pimpl::FontTable(pos, font));
 543         } else { // The general case. The block is splitted into 3 blocks
 544                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 545                                 Pimpl::FontTable(pos - 1, pimpl_->fontlist[i].font()));
 546                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 547                                 Pimpl::FontTable(pos, font));
 548         }
 549 }
 550
 551
 552 void Paragraph::makeSameLayout(Paragraph const & par)
 553 {
 554         layout(par.layout());
 555         // move to pimpl?
 556         params() = par.params();
 557 }
 558
 559
 560 int Paragraph::stripLeadingSpaces()
 561 {
 562         if (isFreeSpacing())
 563                 return 0;
 564
 565         int i = 0;
 566         while (!empty() && (isNewline(0) || isLineSeparator(0))
 567                 && (lookupChange(0) != Change::DELETED)) {
 568                 erase(0);
 569                 ++i;
 570         }
 571
 572         return i;
 573 }
 574
 575
 576 bool Paragraph::hasSameLayout(Paragraph const & par) const
 577 {
 578         return par.layout() == layout() && params().sameLayout(par.params());
 579 }
 580
 581
 582 Paragraph::depth_type Paragraph::getDepth() const
 583 {
 584         return params().depth();
 585 }
 586
 587
 588 Paragraph::depth_type Paragraph::getMaxDepthAfter() const
 589 {
 590         if (layout()->isEnvironment())
 591                 return params().depth() + 1;
 592         else
 593                 return params().depth();
 594 }
 595
 596
 597 char Paragraph::getAlign() const
 598 {
 599         return params().align();
 600 }
 601
 602
 603 string const & Paragraph::getLabelstring() const
 604 {
 605         return params().labelString();
 606 }
 607
 608
 609 // the next two functions are for the manual labels
 610 string const Paragraph::getLabelWidthString() const
 611 {
 612         if (!params().labelWidthString().empty())
 613                 return params().labelWidthString();
 614         else
 615                 return _("Senseless with this layout!");
 616 }
 617
 618
 619 void Paragraph::setLabelWidthString(string const & s)
 620 {
 621         params().labelWidthString(s);
 622 }
 623
 624
 625 void Paragraph::applyLayout(LyXLayout_ptr const & new_layout)
 626 {
 627         layout(new_layout);
 628         params().labelWidthString(string());
 629         params().align(LYX_ALIGN_LAYOUT);
 630         params().spacing(Spacing(Spacing::Default));
 631 }
 632
 633
 634 pos_type Paragraph::beginOfBody() const
 635 {
 636         return begin_of_body_;
 637 }
 638
 639
 640 void Paragraph::setBeginOfBody()
 641 {
 642         if (layout()->labeltype != LABEL_MANUAL) {
 643                 begin_of_body_ = 0;
 644                 return;
 645         }
 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         pos_type end = size();
 652         if (i < end && !isNewline(i)) {
 653                 ++i;
 654                 char previous_char = 0;
 655                 char temp = 0;
 656                 if (i < end) {
 657                         previous_char = text_[i];
 658                         if (!isNewline(i)) {
 659                                 ++i;
 660                                 while (i < end && previous_char != ' ') {
 661                                         temp = text_[i];
 662                                         if (isNewline(i))
 663                                                 break;
 664                                         ++i;
 665                                         previous_char = temp;
 666                                 }
 667                         }
 668                 }
 669         }
 670
 671         begin_of_body_ = i;
 672 }
 673
 674
 675 // returns -1 if inset not found
 676 int Paragraph::getPositionOfInset(InsetBase 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         if (!insetlist.empty()) {
 691                 InsetBase * inset = insetlist.begin()->inset;
 692                 if (inset->lyxCode() == InsetBase::BIBITEM_CODE)
 693                         return static_cast<InsetBibitem *>(inset);
 694         }
 695         return 0;
 696 }
 697
 698
 699 bool Paragraph::forceDefaultParagraphs() const
 700 {
 701         return inInset() && inInset()->forceDefaultParagraphs(0);
 702 }
 703
 704
 705 namespace {
 706
 707 // paragraphs inside floats need different alignment tags to avoid
 708 // unwanted space
 709
 710 bool noTrivlistCentering(InsetBase::Code code)
 711 {
 712         return code == InsetBase::FLOAT_CODE || code == InsetBase::WRAP_CODE;
 713 }
 714
 715
 716 string correction(string const & orig)
 717 {
 718         if (orig == "flushleft")
 719                 return "raggedright";
 720         if (orig == "flushright")
 721                 return "raggedleft";
 722         if (orig == "center")
 723                 return "centering";
 724         return orig;
 725 }
 726
 727
 728 string const corrected_env(string const & suffix, string const & env,
 729         InsetBase::Code code)
 730 {
 731         string output = suffix + "{";
 732         if (noTrivlistCentering(code))
 733                 output += correction(env);
 734         else
 735                 output += env;
 736         return output + "}";
 737 }
 738
 739 } // namespace anon
 740
 741
 742 // This could go to ParagraphParameters if we want to
 743 int Paragraph::startTeXParParams(BufferParams const & bparams,
 744                                  ostream & os, bool moving_arg) const
 745 {
 746         int column = 0;
 747
 748         if (params().noindent()) {
 749                 os << "\\noindent ";
 750                 column += 10;
 751         }
 752
 753         switch (params().align()) {
 754         case LYX_ALIGN_NONE:
 755         case LYX_ALIGN_BLOCK:
 756         case LYX_ALIGN_LAYOUT:
 757         case LYX_ALIGN_SPECIAL:
 758                 break;
 759         case LYX_ALIGN_LEFT:
 760         case LYX_ALIGN_RIGHT:
 761         case LYX_ALIGN_CENTER:
 762                 if (moving_arg) {
 763                         os << "\\protect";
 764                         column += 8;
 765                 }
 766                 break;
 767         }
 768
 769         switch (params().align()) {
 770         case LYX_ALIGN_NONE:
 771         case LYX_ALIGN_BLOCK:
 772         case LYX_ALIGN_LAYOUT:
 773         case LYX_ALIGN_SPECIAL:
 774                 break;
 775         case LYX_ALIGN_LEFT: {
 776                 string output;
 777                 if (getParLanguage(bparams)->babel() != "hebrew")
 778                         output = corrected_env("\\begin", "flushleft", ownerCode());
 779                 else
 780                         output = corrected_env("\\begin", "flushright", ownerCode());
 781                 os << output;
 782                 column += output.size();
 783                 break;
 784         } case LYX_ALIGN_RIGHT: {
 785                 string output;
 786                 if (getParLanguage(bparams)->babel() != "hebrew")
 787                         output = corrected_env("\\begin", "flushright", ownerCode());
 788                 else
 789                         output = corrected_env("\\begin", "flushleft", ownerCode());
 790                 os << output;
 791                 column += output.size();
 792                 break;
 793         } case LYX_ALIGN_CENTER: {
 794                 string output;
 795                 output = corrected_env("\\begin", "center", ownerCode());
 796                 os << output;
 797                 column += output.size();
 798                 break;
 799         }
 800         }
 801
 802         return column;
 803 }
 804
 805
 806 // This could go to ParagraphParameters if we want to
 807 int Paragraph::endTeXParParams(BufferParams const & bparams,
 808                                ostream & os, bool moving_arg) const
 809 {
 810         int column = 0;
 811
 812         switch (params().align()) {
 813         case LYX_ALIGN_NONE:
 814         case LYX_ALIGN_BLOCK:
 815         case LYX_ALIGN_LAYOUT:
 816         case LYX_ALIGN_SPECIAL:
 817                 break;
 818         case LYX_ALIGN_LEFT:
 819         case LYX_ALIGN_RIGHT:
 820         case LYX_ALIGN_CENTER:
 821                 if (moving_arg) {
 822                         os << "\\protect";
 823                         column = 8;
 824                 }
 825                 break;
 826         }
 827
 828         switch (params().align()) {
 829         case LYX_ALIGN_NONE:
 830         case LYX_ALIGN_BLOCK:
 831         case LYX_ALIGN_LAYOUT:
 832         case LYX_ALIGN_SPECIAL:
 833                 break;
 834         case LYX_ALIGN_LEFT: {
 835                 string output;
 836                 if (getParLanguage(bparams)->babel() != "hebrew")
 837                         output = corrected_env("\\par\\end", "flushleft", ownerCode());
 838                 else
 839                         output = corrected_env("\\par\\end", "flushright", ownerCode());
 840                 os << output;
 841                 column += output.size();
 842                 break;
 843         } case LYX_ALIGN_RIGHT: {
 844                 string output;
 845                 if (getParLanguage(bparams)->babel() != "hebrew")
 846                         output = corrected_env("\\par\\end", "flushright", ownerCode());
 847                 else
 848                         output = corrected_env("\\par\\end", "flushleft", ownerCode());
 849                 os << output;
 850                 column += output.size();
 851                 break;
 852         } case LYX_ALIGN_CENTER: {
 853                 string output;
 854                 output = corrected_env("\\par\\end", "center", ownerCode());
 855                 os << output;
 856                 column += output.size();
 857                 break;
 858         }
 859         }
 860
 861         return column;
 862 }
 863
 864
 865 // This one spits out the text of the paragraph
 866 bool Paragraph::simpleTeXOnePar(Buffer const & buf,
 867                                 BufferParams const & bparams,
 868                                 LyXFont const & outerfont,
 869                                 ostream & os, TexRow & texrow,
 870                                 OutputParams const & runparams) const
 871 {
 872         lyxerr[Debug::LATEX] << "SimpleTeXOnePar...     " << this << endl;
 873
 874         bool return_value = false;
 875
 876         LyXLayout_ptr style;
 877
 878         // well we have to check if we are in an inset with unlimited
 879         // length (all in one row) if that is true then we don't allow
 880         // any special options in the paragraph and also we don't allow
 881         // any environment other then "Standard" to be valid!
 882         bool asdefault = forceDefaultParagraphs();
 883
 884         if (asdefault) {
 885                 style = bparams.getLyXTextClass().defaultLayout();
 886         } else {
 887                 style = layout();
 888         }
 889
 890         LyXFont basefont;
 891
 892         LaTeXFeatures features(buf, bparams, runparams.nice);
 893
 894         // output change tracking marks only if desired,
 895         // if dvipost is installed,
 896         // and with dvi/ps (other formats don't work)
 897         bool const output = bparams.output_changes
 898                 && runparams.flavor == OutputParams::LATEX
 899                 && features.isAvailable("dvipost");
 900
 901         // Maybe we have to create a optional argument.
 902         pos_type body_pos = beginOfBody();
 903         unsigned int column = 0;
 904
 905         if (body_pos > 0) {
 906                 // the optional argument is kept in curly brackets in
 907                 // case it contains a ']'
 908                 os << "[{";
 909                 column += 2;
 910                 basefont = getLabelFont(bparams, outerfont);
 911         } else {
 912                 basefont = getLayoutFont(bparams, outerfont);
 913         }
 914
 915         // Which font is currently active?
 916         LyXFont running_font(basefont);
 917         // Do we have an open font change?
 918         bool open_font = false;
 919
 920         Change::Type running_change = Change::UNCHANGED;
 921
 922         texrow.start(id(), 0);
 923
 924         // if the paragraph is empty, the loop will not be entered at all
 925         if (empty()) {
 926                 if (style->isCommand()) {
 927                         os << '{';
 928                         ++column;
 929                 }
 930                 if (!asdefault)
 931                         column += startTeXParParams(bparams, os,
 932                                                     runparams.moving_arg);
 933         }
 934
 935         for (pos_type i = 0; i < size(); ++i) {
 936                 ++column;
 937                 // First char in paragraph or after label?
 938                 if (i == body_pos) {
 939                         if (body_pos > 0) {
 940                                 if (open_font) {
 941                                         column += running_font.latexWriteEndChanges(os, basefont, basefont);
 942                                         open_font = false;
 943                                 }
 944                                 basefont = getLayoutFont(bparams, outerfont);
 945                                 running_font = basefont;
 946                                 os << "}] ";
 947                                 column +=3;
 948                         }
 949                         if (style->isCommand()) {
 950                                 os << '{';
 951                                 ++column;
 952                         }
 953
 954                         if (!asdefault)
 955                                 column += startTeXParParams(bparams, os,
 956                                                             runparams.moving_arg);
 957                 }
 958
 959                 value_type c = getChar(i);
 960
 961                 // Fully instantiated font
 962                 LyXFont font = getFont(bparams, i, outerfont);
 963
 964                 LyXFont const last_font = running_font;
 965
 966                 // Spaces at end of font change are simulated to be
 967                 // outside font change, i.e. we write "\textXX{text} "
 968                 // rather than "\textXX{text }". (Asger)
 969                 if (open_font && c == ' ' && i <= size() - 2) {
 970                         LyXFont const & next_font = getFont(bparams, i + 1, outerfont);
 971                         if (next_font != running_font && next_font != font) {
 972                                 font = next_font;
 973                         }
 974                 }
 975
 976                 // We end font definition before blanks
 977                 if (open_font &&
 978                     (font != running_font ||
 979                      font.language() != running_font.language()))
 980                 {
 981                         column += running_font.latexWriteEndChanges(os,
 982                                                                     basefont,
 983                                                                     (i == body_pos-1) ? basefont : font);
 984                         running_font = basefont;
 985                         open_font = false;
 986                 }
 987
 988                 // Blanks are printed before start of fontswitch
 989                 if (c == ' ') {
 990                         // Do not print the separation of the optional argument
 991                         if (i != body_pos - 1) {
 992                                 pimpl_->simpleTeXBlanks(os, texrow, i,
 993                                                        column, font, *style);
 994                         }
 995                 }
 996
 997                 // Do we need to change font?
 998                 if ((font != running_font ||
 999                      font.language() != running_font.language()) &&
1000                         i != body_pos - 1)
1001                 {
1002                         column += font.latexWriteStartChanges(os, basefont,
1003                                                               last_font);
1004                         running_font = font;
1005                         open_font = true;
1006                 }
1007
1008                 Change::Type change = pimpl_->lookupChange(i);
1009
1010                 column += Changes::latexMarkChange(os, running_change,
1011                         change, output);
1012                 running_change = change;
1013
1014                 // do not output text which is marked deleted
1015                 // if change tracking output is not desired
1016                 if (output || running_change != Change::DELETED) {
1017                         OutputParams rp = runparams;
1018                         rp.free_spacing = style->free_spacing;
1019                         rp.local_font = &font;
1020                         rp.intitle = style->intitle;
1021                         pimpl_->simpleTeXSpecialChars(buf, bparams,
1022                                                 os, texrow, rp,
1023                                                 font, running_font,
1024                                                 basefont, outerfont, open_font,
1025                                                 running_change,
1026                                                 *style, i, column, c);
1027                 }
1028         }
1029
1030         column += Changes::latexMarkChange(os,
1031                         running_change, Change::UNCHANGED, output);
1032
1033         // If we have an open font definition, we have to close it
1034         if (open_font) {
1035 #ifdef FIXED_LANGUAGE_END_DETECTION
1036                 if (next_) {
1037                         running_font
1038                                 .latexWriteEndChanges(os, basefont,
1039                                                       next_->getFont(bparams,
1040                                                       0, outerfont));
1041                 } else {
1042                         running_font.latexWriteEndChanges(os, basefont,
1043                                                           basefont);
1044                 }
1045 #else
1046 #ifdef WITH_WARNINGS
1047 //#warning For now we ALWAYS have to close the foreign font settings if they are
1048 //#warning there as we start another \selectlanguage with the next paragraph if
1049 //#warning we are in need of this. This should be fixed sometime (Jug)
1050 #endif
1051                 running_font.latexWriteEndChanges(os, basefont,  basefont);
1052 #endif
1053         }
1054
1055         // Needed if there is an optional argument but no contents.
1056         if (body_pos > 0 && body_pos == size()) {
1057                 os << "}]~";
1058                 return_value = false;
1059         }
1060
1061         if (!asdefault) {
1062                 column += endTeXParParams(bparams, os, runparams.moving_arg);
1063         }
1064
1065         lyxerr[Debug::LATEX] << "SimpleTeXOnePar...done " << this << endl;
1066         return return_value;
1067 }
1068
1069
1070 namespace {
1071
1072 // checks, if newcol chars should be put into this line
1073 // writes newline, if necessary.
1074 void sgmlLineBreak(ostream & os, string::size_type & colcount,
1075                           string::size_type newcol)
1076 {
1077         colcount += newcol;
1078         if (colcount > lyxrc.ascii_linelen) {
1079                 os << "\n";
1080                 colcount = newcol; // assume write after this call
1081         }
1082 }
1083
1084 enum PAR_TAG {
1085         PAR_NONE=0,
1086         TT = 1,
1087         SF = 2,
1088         BF = 4,
1089         IT = 8,
1090         SL = 16,
1091         EM = 32
1092 };
1093
1094
1095 string tag_name(PAR_TAG const & pt) {
1096         switch (pt) {
1097         case PAR_NONE: return "!-- --";
1098         case TT: return "tt";
1099         case SF: return "sf";
1100         case BF: return "bf";
1101         case IT: return "it";
1102         case SL: return "sl";
1103         case EM: return "em";
1104         }
1105         return "";
1106 }
1107
1108
1109 inline
1110 void operator|=(PAR_TAG & p1, PAR_TAG const & p2)
1111 {
1112         p1 = static_cast<PAR_TAG>(p1 | p2);
1113 }
1114
1115
1116 inline
1117 void reset(PAR_TAG & p1, PAR_TAG const & p2)
1118 {
1119         p1 = static_cast<PAR_TAG>(p1 & ~p2);
1120 }
1121
1122 } // anon
1123
1124
1125 // Handle internal paragraph parsing -- layout already processed.
1126 void Paragraph::simpleLinuxDocOnePar(Buffer const & buf,
1127                                      ostream & os,
1128                                      LyXFont const & outerfont,
1129                                      OutputParams const & runparams,
1130                                      lyx::depth_type /*depth*/) const
1131 {
1132         LyXLayout_ptr const & style = layout();
1133
1134         string::size_type char_line_count = 5;     // Heuristic choice ;-)
1135
1136         // gets paragraph main font
1137         LyXFont font_old;
1138         bool desc_on;
1139         if (style->labeltype == LABEL_MANUAL) {
1140                 font_old = style->labelfont;
1141                 desc_on = true;
1142         } else {
1143                 font_old = style->font;
1144                 desc_on = false;
1145         }
1146
1147         LyXFont::FONT_FAMILY family_type = LyXFont::ROMAN_FAMILY;
1148         LyXFont::FONT_SERIES series_type = LyXFont::MEDIUM_SERIES;
1149         LyXFont::FONT_SHAPE  shape_type  = LyXFont::UP_SHAPE;
1150         bool is_em = false;
1151
1152         stack<PAR_TAG> tag_state;
1153         // parsing main loop
1154         for (pos_type i = 0; i < size(); ++i) {
1155
1156                 PAR_TAG tag_close = PAR_NONE;
1157                 list < PAR_TAG > tag_open;
1158
1159                 LyXFont const font = getFont(buf.params(), i, outerfont);
1160
1161                 if (font_old.family() != font.family()) {
1162                         switch (family_type) {
1163                         case LyXFont::SANS_FAMILY:
1164                                 tag_close |= SF;
1165                                 break;
1166                         case LyXFont::TYPEWRITER_FAMILY:
1167                                 tag_close |= TT;
1168                                 break;
1169                         default:
1170                                 break;
1171                         }
1172
1173                         family_type = font.family();
1174
1175                         switch (family_type) {
1176                         case LyXFont::SANS_FAMILY:
1177                                 tag_open.push_back(SF);
1178                                 break;
1179                         case LyXFont::TYPEWRITER_FAMILY:
1180                                 tag_open.push_back(TT);
1181                                 break;
1182                         default:
1183                                 break;
1184                         }
1185                 }
1186
1187                 if (font_old.series() != font.series()) {
1188                         switch (series_type) {
1189                         case LyXFont::BOLD_SERIES:
1190                                 tag_close |= BF;
1191                                 break;
1192                         default:
1193                                 break;
1194                         }
1195
1196                         series_type = font.series();
1197
1198                         switch (series_type) {
1199                         case LyXFont::BOLD_SERIES:
1200                                 tag_open.push_back(BF);
1201                                 break;
1202                         default:
1203                                 break;
1204                         }
1205
1206                 }
1207
1208                 if (font_old.shape() != font.shape()) {
1209                         switch (shape_type) {
1210                         case LyXFont::ITALIC_SHAPE:
1211                                 tag_close |= IT;
1212                                 break;
1213                         case LyXFont::SLANTED_SHAPE:
1214                                 tag_close |= SL;
1215                                 break;
1216                         default:
1217                                 break;
1218                         }
1219
1220                         shape_type = font.shape();
1221
1222                         switch (shape_type) {
1223                         case LyXFont::ITALIC_SHAPE:
1224                                 tag_open.push_back(IT);
1225                                 break;
1226                         case LyXFont::SLANTED_SHAPE:
1227                                 tag_open.push_back(SL);
1228                                 break;
1229                         default:
1230                                 break;
1231                         }
1232                 }
1233                 // handle <em> tag
1234                 if (font_old.emph() != font.emph()) {
1235                         if (font.emph() == LyXFont::ON) {
1236                                 tag_open.push_back(EM);
1237                                 is_em = true;
1238                         }
1239                         else if (is_em) {
1240                                 tag_close |= EM;
1241                                 is_em = false;
1242                         }
1243                 }
1244
1245                 list < PAR_TAG > temp;
1246                 while (!tag_state.empty() && tag_close) {
1247                         PAR_TAG k =  tag_state.top();
1248                         tag_state.pop();
1249                         os << "</" << tag_name(k) << '>';
1250                         if (tag_close & k)
1251                                 reset(tag_close,k);
1252                         else
1253                                 temp.push_back(k);
1254                 }
1255
1256                 for(list< PAR_TAG >::const_iterator j = temp.begin();
1257                     j != temp.end(); ++j) {
1258                         tag_state.push(*j);
1259                         os << '<' << tag_name(*j) << '>';
1260                 }
1261
1262                 for(list< PAR_TAG >::const_iterator j = tag_open.begin();
1263                     j != tag_open.end(); ++j) {
1264                         tag_state.push(*j);
1265                         os << '<' << tag_name(*j) << '>';
1266                 }
1267
1268                 value_type c = getChar(i);
1269
1270
1271                 if (c == Paragraph::META_INSET) {
1272                         getInset(i)->linuxdoc(buf, os, runparams);
1273                         font_old = font;
1274                         continue;
1275                 }
1276
1277                 if (style->latexparam() == "CDATA") {
1278                         // "TeX"-Mode on == > SGML-Mode on.
1279                         if (c != '\0')
1280                                 os << c;
1281                         ++char_line_count;
1282                 } else {
1283                         bool ws;
1284                         string str;
1285                         boost::tie(ws, str) = sgml::escapeChar(c);
1286                         if (ws && !isFreeSpacing()) {
1287                                 // in freespacing mode, spaces are
1288                                 // non-breaking characters
1289                                 if (desc_on) { // if char is ' ' then...
1290                                         ++char_line_count;
1291                                         sgmlLineBreak(os, char_line_count, 6);
1292                                         os << "</tag>";
1293                                         desc_on = false;
1294                                 } else  {
1295                                         sgmlLineBreak(os, char_line_count, 1);
1296                                         os << c;
1297                                 }
1298                         } else {
1299                                 os << str;
1300                                 char_line_count += str.length();
1301                         }
1302                 }
1303                 font_old = font;
1304         }
1305
1306         while (!tag_state.empty()) {
1307                 os << "</" << tag_name(tag_state.top()) << '>';
1308                 tag_state.pop();
1309         }
1310
1311         // resets description flag correctly
1312         if (desc_on) {
1313                 // <tag> not closed...
1314                 sgmlLineBreak(os, char_line_count, 6);
1315                 os << "</tag>";
1316         }
1317 }
1318
1319
1320 bool Paragraph::emptyTag() const
1321 {
1322         for (pos_type i = 0; i < size(); ++i) {
1323                 if (isInset(i)) {
1324                         InsetBase const * inset = getInset(i);
1325                         InsetBase::Code lyx_code = inset->lyxCode();
1326                         if (lyx_code != InsetBase::TOC_CODE &&
1327                             lyx_code != InsetBase::INCLUDE_CODE &&
1328                             lyx_code != InsetBase::GRAPHICS_CODE &&
1329                             lyx_code != InsetBase::ERT_CODE &&
1330                             lyx_code != InsetBase::FLOAT_CODE &&
1331                             lyx_code != InsetBase::TABULAR_CODE) {
1332                                 return false;
1333                         }
1334                 } else {
1335                         value_type c = getChar(i);
1336                         if (c != ' ' && c != '\t')
1337                                 return false;
1338                 }
1339         }
1340         return true;
1341 }
1342
1343
1344 string Paragraph::getID(Buffer const & buf, OutputParams const & runparams) const
1345 {
1346         for (pos_type i = 0; i < size(); ++i) {
1347                 if (isInset(i)) {
1348                         InsetBase const * inset = getInset(i);
1349                         InsetBase::Code lyx_code = inset->lyxCode();
1350                         if (lyx_code == InsetBase::LABEL_CODE) {
1351                                 string const id = static_cast<InsetCommand const *>(inset)->getContents();
1352                                 return "id=\"" + sgml::cleanID(buf, runparams, id) + "\"";
1353                         }
1354                 }
1355
1356         }
1357         return string();
1358 }
1359
1360
1361 pos_type Paragraph::getFirstWord(Buffer const & buf, ostream & os, OutputParams const & runparams) const
1362 {
1363         pos_type i;
1364         for (i = 0; i < size(); ++i) {
1365                 if (isInset(i)) {
1366                         InsetBase const * inset = getInset(i);
1367                         inset->docbook(buf, os, runparams);
1368                 } else {
1369                         value_type c = getChar(i);
1370                         if (c == ' ')
1371                                 break;
1372                         bool ws;
1373                         string str;
1374                         boost::tie(ws, str) = sgml::escapeChar(c);
1375
1376                         os << str;
1377                 }
1378         }
1379         return i;
1380 }
1381
1382
1383 bool Paragraph::onlyText(Buffer const & buf, LyXFont const & outerfont, pos_type initial) const
1384 {
1385         LyXFont font_old;
1386
1387         for (pos_type i = initial; i < size(); ++i) {
1388                 LyXFont font = getFont(buf.params(), i, outerfont);
1389                 if (isInset(i))
1390                         return false;
1391                 if (i != initial && font != font_old)
1392                         return false;
1393                 font_old = font;
1394         }
1395
1396         return true;
1397 }
1398
1399
1400 void Paragraph::simpleDocBookOnePar(Buffer const & buf,
1401                                     ostream & os,
1402                                     OutputParams const & runparams,
1403                                     LyXFont const & outerfont,
1404                                     pos_type initial) const
1405 {
1406         bool emph_flag = false;
1407
1408         LyXLayout_ptr const & style = layout();
1409         LyXFont font_old =
1410                 style->labeltype == LABEL_MANUAL ? style->labelfont : style->font;
1411
1412         if (style->pass_thru && !onlyText(buf, outerfont, initial))
1413                 os << "]]>";
1414
1415         // parsing main loop
1416         for (pos_type i = initial; i < size(); ++i) {
1417                 LyXFont font = getFont(buf.params(), i, outerfont);
1418
1419                 // handle <emphasis> tag
1420                 if (font_old.emph() != font.emph()) {
1421                         if (font.emph() == LyXFont::ON) {
1422                                 os << "<emphasis>";
1423                                 emph_flag = true;
1424                         } else if (i != initial) {
1425                                 os << "</emphasis>";
1426                                 emph_flag = false;
1427                         }
1428                 }
1429
1430                 if (isInset(i)) {
1431                         InsetBase const * inset = getInset(i);
1432                         inset->docbook(buf, os, runparams);
1433                 } else {
1434                         value_type c = getChar(i);
1435                         bool ws;
1436                         string str;
1437                         boost::tie(ws, str) = sgml::escapeChar(c);
1438
1439                         if (style->pass_thru)
1440                                 os << c;
1441                         else
1442                                 os << str;
1443                 }
1444                 font_old = font;
1445         }
1446
1447         if (emph_flag) {
1448                 os << "</emphasis>";
1449         }
1450
1451         if (style->free_spacing)
1452                 os << '\n';
1453         if (style->pass_thru && !onlyText(buf, outerfont, initial))
1454                 os << "<![CDATA[";
1455 }
1456
1457
1458 bool Paragraph::isNewline(pos_type pos) const
1459 {
1460         return isInset(pos)
1461                 && getInset(pos)->lyxCode() == InsetBase::NEWLINE_CODE;
1462 }
1463
1464
1465 bool Paragraph::isLineSeparator(pos_type pos) const
1466 {
1467         value_type const c = getChar(pos);
1468         return IsLineSeparatorChar(c)
1469                 || (c == Paragraph::META_INSET && getInset(pos) &&
1470                 getInset(pos)->isLineSeparator());
1471 }
1472
1473
1474 /// Used by the spellchecker
1475 bool Paragraph::isLetter(pos_type pos) const
1476 {
1477         if (isInset(pos))
1478                 return getInset(pos)->isLetter();
1479         else {
1480                 value_type const c = getChar(pos);
1481                 return IsLetterChar(c) || IsDigit(c);
1482         }
1483 }
1484
1485
1486 Language const *
1487 Paragraph::getParLanguage(BufferParams const & bparams) const
1488 {
1489         if (!empty())
1490                 return getFirstFontSettings(bparams).language();
1491 #ifdef WITH_WARNINGS
1492 #warning FIXME we should check the prev par as well (Lgb)
1493 #endif
1494         return bparams.language;
1495 }
1496
1497
1498 bool Paragraph::isRightToLeftPar(BufferParams const & bparams) const
1499 {
1500         return lyxrc.rtl_support
1501                 && getParLanguage(bparams)->RightToLeft()
1502                 && ownerCode() != InsetBase::ERT_CODE;
1503 }
1504
1505
1506 void Paragraph::changeLanguage(BufferParams const & bparams,
1507                                Language const * from, Language const * to)
1508 {
1509         for (pos_type i = 0; i < size(); ++i) {
1510                 LyXFont font = getFontSettings(bparams, i);
1511                 if (font.language() == from) {
1512                         font.setLanguage(to);
1513                         setFont(i, font);
1514                 }
1515         }
1516 }
1517
1518
1519 bool Paragraph::isMultiLingual(BufferParams const & bparams) const
1520 {
1521         Language const * doc_language = bparams.language;
1522         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
1523         Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
1524
1525         for (; cit != end; ++cit)
1526                 if (cit->font().language() != ignore_language &&
1527                     cit->font().language() != latex_language &&
1528                     cit->font().language() != doc_language)
1529                         return true;
1530         return false;
1531 }
1532
1533
1534 // Convert the paragraph to a string.
1535 // Used for building the table of contents
1536 string const Paragraph::asString(Buffer const & buffer, bool label) const
1537 {
1538         OutputParams runparams;
1539         return asString(buffer, runparams, label);
1540 }
1541
1542
1543 string const Paragraph::asString(Buffer const & buffer,
1544                                  OutputParams const & runparams,
1545                                  bool label) const
1546 {
1547 #if 0
1548         string s;
1549         if (label && !params().labelString().empty())
1550                 s += params().labelString() + ' ';
1551
1552         for (pos_type i = 0; i < size(); ++i) {
1553                 value_type c = getChar(i);
1554                 if (IsPrintable(c))
1555                         s += c;
1556                 else if (c == META_INSET &&
1557                          getInset(i)->lyxCode() == InsetBase::MATH_CODE) {
1558                         ostringstream os;
1559                         getInset(i)->plaintext(buffer, os, runparams);
1560                         s += subst(STRCONV(os.str()),'\n',' ');
1561                 }
1562         }
1563
1564         return s;
1565 #else
1566         // This should really be done by the caller and not here.
1567         string ret = asString(buffer, runparams, 0, size(), label);
1568         return subst(ret, '\n', ' ');
1569 #endif
1570 }
1571
1572
1573 string const Paragraph::asString(Buffer const & buffer,
1574                                  pos_type beg, pos_type end, bool label) const
1575 {
1576
1577         OutputParams const runparams;
1578         return asString(buffer, runparams, beg, end, label);
1579 }
1580
1581
1582 string const Paragraph::asString(Buffer const & buffer,
1583                                  OutputParams const & runparams,
1584                                  pos_type beg, pos_type end, bool label) const
1585 {
1586         ostringstream os;
1587
1588         if (beg == 0 && label && !params().labelString().empty())
1589                 os << params().labelString() << ' ';
1590
1591         for (pos_type i = beg; i < end; ++i) {
1592                 value_type const c = getUChar(buffer.params(), i);
1593                 if (IsPrintable(c))
1594                         os << c;
1595                 else if (c == META_INSET)
1596                         getInset(i)->textString(buffer, os, runparams);
1597         }
1598
1599         return os.str();
1600 }
1601
1602
1603 void Paragraph::setInsetOwner(InsetBase * inset)
1604 {
1605         pimpl_->inset_owner = inset;
1606 }
1607
1608
1609 void Paragraph::setContentsFromPar(Paragraph const & par)
1610 {
1611         pimpl_->setContentsFromPar(par);
1612 }
1613
1614
1615 void Paragraph::trackChanges(Change::Type type)
1616 {
1617         pimpl_->trackChanges(type);
1618 }
1619
1620
1621 void Paragraph::untrackChanges()
1622 {
1623         pimpl_->untrackChanges();
1624 }
1625
1626
1627 void Paragraph::cleanChanges()
1628 {
1629         pimpl_->cleanChanges();
1630 }
1631
1632
1633 Change::Type Paragraph::lookupChange(lyx::pos_type pos) const
1634 {
1635         BOOST_ASSERT(pos <= size());
1636         return pimpl_->lookupChange(pos);
1637 }
1638
1639
1640 Change const Paragraph::lookupChangeFull(lyx::pos_type pos) const
1641 {
1642         BOOST_ASSERT(pos <= size());
1643         return pimpl_->lookupChangeFull(pos);
1644 }
1645
1646
1647 bool Paragraph::isChanged(pos_type start, pos_type end) const
1648 {
1649         return pimpl_->isChanged(start, end);
1650 }
1651
1652
1653 bool Paragraph::isChangeEdited(pos_type start, pos_type end) const
1654 {
1655         return pimpl_->isChangeEdited(start, end);
1656 }
1657
1658
1659 void Paragraph::setChange(lyx::pos_type pos, Change::Type type)
1660 {
1661         pimpl_->setChange(pos, type);
1662 }
1663
1664
1665 void Paragraph::setChangeFull(lyx::pos_type pos, Change change)
1666 {
1667         pimpl_->setChangeFull(pos, change);
1668 }
1669
1670
1671 void Paragraph::markErased(bool erased)
1672 {
1673         pimpl_->markErased(erased);
1674 }
1675
1676
1677 void Paragraph::acceptChange(pos_type start, pos_type end)
1678 {
1679         return pimpl_->acceptChange(start, end);
1680 }
1681
1682
1683 void Paragraph::rejectChange(pos_type start, pos_type end)
1684 {
1685         return pimpl_->rejectChange(start, end);
1686 }
1687
1688
1689 int Paragraph::id() const
1690 {
1691         return pimpl_->id_;
1692 }
1693
1694
1695 LyXLayout_ptr const & Paragraph::layout() const
1696 {
1697         return layout_;
1698 }
1699
1700
1701 void Paragraph::layout(LyXLayout_ptr const & new_layout)
1702 {
1703         layout_ = new_layout;
1704 }
1705
1706
1707 InsetBase * Paragraph::inInset() const
1708 {
1709         return pimpl_->inset_owner;
1710 }
1711
1712
1713 InsetBase::Code Paragraph::ownerCode() const
1714 {
1715         return pimpl_->inset_owner
1716                 ? pimpl_->inset_owner->lyxCode() : InsetBase::NO_CODE;
1717 }
1718
1719
1720 void Paragraph::clearContents()
1721 {
1722         text_.clear();
1723 }
1724
1725
1726 void Paragraph::setChar(pos_type pos, value_type c)
1727 {
1728         text_[pos] = c;
1729 }
1730
1731
1732 ParagraphParameters & Paragraph::params()
1733 {
1734         return pimpl_->params;
1735 }
1736
1737
1738 ParagraphParameters const & Paragraph::params() const
1739 {
1740         return pimpl_->params;
1741 }
1742
1743
1744 bool Paragraph::isFreeSpacing() const
1745 {
1746         if (layout()->free_spacing)
1747                 return true;
1748
1749         // for now we just need this, later should we need this in some
1750         // other way we can always add a function to InsetBase too.
1751         return ownerCode() == InsetBase::ERT_CODE;
1752 }
1753
1754
1755 bool Paragraph::allowEmpty() const
1756 {
1757         if (layout()->keepempty)
1758                 return true;
1759         return ownerCode() == InsetBase::ERT_CODE;
1760 }
1761
1762
1763 Row & Paragraph::getRow(pos_type pos, bool boundary)
1764 {
1765         BOOST_ASSERT(!rows().empty());
1766
1767         // If boundary is set we should return the row on which
1768         // the character before is inside.
1769         if (pos > 0 && boundary)
1770                 --pos;
1771
1772         RowList::iterator rit = rows_.end();
1773         RowList::iterator const begin = rows_.begin();
1774
1775         for (--rit; rit != begin && rit->pos() > pos; --rit)
1776                 ;
1777
1778         return *rit;
1779 }
1780
1781
1782 Row const & Paragraph::getRow(pos_type pos, bool boundary) const
1783 {
1784         BOOST_ASSERT(!rows().empty());
1785
1786         // If boundary is set we should return the row on which
1787         // the character before is inside.
1788         if (pos > 0 && boundary)
1789                 --pos;
1790
1791         RowList::const_iterator rit = rows_.end();
1792         RowList::const_iterator const begin = rows_.begin();
1793
1794         for (--rit; rit != begin && rit->pos() > pos; --rit)
1795                 ;
1796
1797         return *rit;
1798 }
1799
1800
1801 size_t Paragraph::pos2row(pos_type pos) const
1802 {
1803         BOOST_ASSERT(!rows().empty());
1804
1805         RowList::const_iterator rit = rows_.end();
1806         RowList::const_iterator const begin = rows_.begin();
1807
1808         for (--rit; rit != begin && rit->pos() > pos; --rit)
1809                 ;
1810
1811         return rit - begin;
1812 }
1813
1814
1815 unsigned char Paragraph::transformChar(unsigned char c, pos_type pos) const
1816 {
1817         if (!Encodings::is_arabic(c))
1818                 if (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 && IsDigit(c))
1819                         return c + (0xb0 - '0');
1820                 else
1821                         return c;
1822
1823         unsigned char const prev_char = pos > 0 ? getChar(pos - 1) : ' ';
1824         unsigned char next_char = ' ';
1825
1826         for (pos_type i = pos + 1, end = size(); i < end; ++i) {
1827                 unsigned char const par_char = getChar(i);
1828                 if (!Encodings::IsComposeChar_arabic(par_char)) {
1829                         next_char = par_char;
1830                         break;
1831                 }
1832         }
1833
1834         if (Encodings::is_arabic(next_char)) {
1835                 if (Encodings::is_arabic(prev_char) &&
1836                         !Encodings::is_arabic_special(prev_char))
1837                         return Encodings::TransformChar(c, Encodings::FORM_MEDIAL);
1838                 else
1839                         return Encodings::TransformChar(c, Encodings::FORM_INITIAL);
1840         } else {
1841                 if (Encodings::is_arabic(prev_char) &&
1842                         !Encodings::is_arabic_special(prev_char))
1843                         return Encodings::TransformChar(c, Encodings::FORM_FINAL);
1844                 else
1845                         return Encodings::TransformChar(c, Encodings::FORM_ISOLATED);
1846         }
1847 }
1848
1849
1850 void Paragraph::dump() const
1851 {
1852         lyxerr << "Paragraph::dump: rows.size(): " << rows_.size() << endl;
1853         for (size_t i = 0; i != rows_.size(); ++i) {
1854                 lyxerr << "  row " << i << ":   ";
1855                 rows_[i].dump();
1856         }
1857 }