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 void Paragraph::insert(pos_type start, string const & str,
 261                        LyXFont const & font)
 262 {
 263         int size = str.size();
 264         for (int i = 0 ; i < size ; ++i)
 265                 insertChar(start + i, str[i], font);
 266 }
 267
 268
 269 bool Paragraph::checkInsertChar(LyXFont & font)
 270 {
 271         if (pimpl_->inset_owner)
 272                 return pimpl_->inset_owner->checkInsertChar(font);
 273         return true;
 274 }
 275
 276
 277 void Paragraph::insertChar(pos_type pos, Paragraph::value_type c)
 278 {
 279         insertChar(pos, c, LyXFont(LyXFont::ALL_INHERIT));
 280 }
 281
 282
 283 void Paragraph::insertChar(pos_type pos, Paragraph::value_type c,
 284                            LyXFont const & font, Change change)
 285 {
 286         pimpl_->insertChar(pos, c, font, change);
 287 }
 288
 289
 290 void Paragraph::insertInset(pos_type pos, InsetOld * inset)
 291 {
 292         insertInset(pos, inset, LyXFont(LyXFont::ALL_INHERIT));
 293 }
 294
 295
 296 void Paragraph::insertInset(pos_type pos, InsetOld * inset,
 297         LyXFont const & font, Change change)
 298 {
 299         pimpl_->insertInset(pos, inset, font, change);
 300 }
 301
 302
 303 bool Paragraph::insetAllowed(InsetOld_code code)
 304 {
 305         //lyxerr << "Paragraph::InsertInsetAllowed" << endl;
 306         if (pimpl_->inset_owner)
 307                 return pimpl_->inset_owner->insetAllowed(code);
 308         return true;
 309 }
 310
 311
 312 InsetOld * Paragraph::getInset(pos_type pos)
 313 {
 314         BOOST_ASSERT(pos < size());
 315         return insetlist.get(pos);
 316 }
 317
 318
 319 InsetOld const * Paragraph::getInset(pos_type pos) const
 320 {
 321         BOOST_ASSERT(pos < size());
 322         return insetlist.get(pos);
 323 }
 324
 325
 326 // Gets uninstantiated font setting at position.
 327 LyXFont const Paragraph::getFontSettings(BufferParams const & bparams,
 328                                          pos_type pos) const
 329 {
 330         BOOST_ASSERT(pos <= size());
 331
 332         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 333         Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
 334         for (; cit != end; ++cit)
 335                 if (cit->pos() >= pos)
 336                         break;
 337
 338         if (cit != end)
 339                 return cit->font();
 340
 341         if (pos == size() && !empty())
 342                 return getFontSettings(bparams, pos - 1);
 343
 344         return LyXFont(LyXFont::ALL_INHERIT, getParLanguage(bparams));
 345 }
 346
 347
 348 lyx::pos_type Paragraph::getEndPosOfFontSpan(lyx::pos_type pos) const
 349 {
 350         BOOST_ASSERT(pos <= size());
 351
 352         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 353         Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
 354         for (; cit != end; ++cit)
 355                 if (cit->pos() >= pos)
 356                         return cit->pos();
 357
 358         // This should not happen, but if so, we take no chances.
 359         //lyxerr << "Paragraph::getEndPosOfFontSpan: This should not happen!"
 360         //      << endl;
 361         return pos;
 362 }
 363
 364
 365 // Gets uninstantiated font setting at position 0
 366 LyXFont const Paragraph::getFirstFontSettings() const
 367 {
 368         if (!empty() && !pimpl_->fontlist.empty())
 369                 return pimpl_->fontlist[0].font();
 370
 371         return LyXFont(LyXFont::ALL_INHERIT);
 372 }
 373
 374
 375 // Gets the fully instantiated font at a given position in a paragraph
 376 // This is basically the same function as LyXText::GetFont() in text2.C.
 377 // The difference is that this one is used for generating the LaTeX file,
 378 // and thus cosmetic "improvements" are disallowed: This has to deliver
 379 // the true picture of the buffer. (Asger)
 380 LyXFont const Paragraph::getFont(BufferParams const & bparams, pos_type pos,
 381                                  LyXFont const & outerfont) const
 382 {
 383         BOOST_ASSERT(pos >= 0);
 384
 385         LyXLayout_ptr const & lout = layout();
 386
 387         pos_type const body_pos = beginningOfBody();
 388
 389         LyXFont layoutfont;
 390         if (pos < body_pos)
 391                 layoutfont = lout->labelfont;
 392         else
 393                 layoutfont = lout->font;
 394
 395         LyXFont font = getFontSettings(bparams, pos);
 396         font.realize(layoutfont);
 397         font.realize(outerfont);
 398         font.realize(bparams.getLyXTextClass().defaultfont());
 399
 400         return font;
 401 }
 402
 403
 404 LyXFont const Paragraph::getLabelFont(BufferParams const & bparams,
 405                                       LyXFont const & outerfont) const
 406 {
 407         LyXFont tmpfont = layout()->labelfont;
 408         tmpfont.setLanguage(getParLanguage(bparams));
 409         tmpfont.realize(outerfont);
 410         tmpfont.realize(bparams.getLyXTextClass().defaultfont());
 411         return tmpfont;
 412 }
 413
 414
 415 LyXFont const Paragraph::getLayoutFont(BufferParams const & bparams,
 416                                        LyXFont const & outerfont) const
 417 {
 418         LyXFont tmpfont = layout()->font;
 419         tmpfont.setLanguage(getParLanguage(bparams));
 420         tmpfont.realize(outerfont);
 421         tmpfont.realize(bparams.getLyXTextClass().defaultfont());
 422         return tmpfont;
 423 }
 424
 425
 426 /// Returns the height of the highest font in range
 427 LyXFont_size
 428 Paragraph::highestFontInRange(pos_type startpos, pos_type endpos,
 429                               LyXFont_size def_size) const
 430 {
 431         if (pimpl_->fontlist.empty())
 432                 return def_size;
 433
 434         Pimpl::FontList::const_iterator end_it = pimpl_->fontlist.begin();
 435         Pimpl::FontList::const_iterator const end = pimpl_->fontlist.end();
 436         for (; end_it != end; ++end_it) {
 437                 if (end_it->pos() >= endpos)
 438                         break;
 439         }
 440
 441         if (end_it != end)
 442                 ++end_it;
 443
 444         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 445         for (; cit != end; ++cit) {
 446                 if (cit->pos() >= startpos)
 447                         break;
 448         }
 449
 450         LyXFont::FONT_SIZE maxsize = LyXFont::SIZE_TINY;
 451         for (; cit != end_it; ++cit) {
 452                 LyXFont::FONT_SIZE size = cit->font().size();
 453                 if (size == LyXFont::INHERIT_SIZE)
 454                         size = def_size;
 455                 if (size > maxsize && size <= LyXFont::SIZE_HUGER)
 456                         maxsize = size;
 457         }
 458         return maxsize;
 459 }
 460
 461
 462 Paragraph::value_type
 463 Paragraph::getUChar(BufferParams const & bparams, pos_type pos) const
 464 {
 465         value_type c = getChar(pos);
 466         if (!lyxrc.rtl_support)
 467                 return c;
 468
 469         value_type uc = c;
 470         switch (c) {
 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         case '}':
 487                 uc = '{';
 488                 break;
 489         case '<':
 490                 uc = '>';
 491                 break;
 492         case '>':
 493                 uc = '<';
 494                 break;
 495         }
 496         if (uc != c && getFontSettings(bparams, pos).isRightToLeft())
 497                 return uc;
 498         else
 499                 return c;
 500 }
 501
 502
 503 void Paragraph::setFont(pos_type pos, LyXFont const & font)
 504 {
 505         BOOST_ASSERT(pos <= size());
 506
 507         // First, reduce font against layout/label font
 508         // Update: The setCharFont() routine in text2.C already
 509         // reduces font, so we don't need to do that here. (Asger)
 510         // No need to simplify this because it will disappear
 511         // in a new kernel. (Asger)
 512         // Next search font table
 513
 514         Pimpl::FontList::iterator beg = pimpl_->fontlist.begin();
 515         Pimpl::FontList::iterator it = beg;
 516         Pimpl::FontList::iterator endit = pimpl_->fontlist.end();
 517         for (; it != endit; ++it) {
 518                 if (it->pos() >= pos)
 519                         break;
 520         }
 521         unsigned int i = std::distance(beg, it);
 522         bool notfound = (it == endit);
 523
 524         if (!notfound && pimpl_->fontlist[i].font() == font)
 525                 return;
 526
 527         bool begin = pos == 0 || notfound ||
 528                 (i > 0 && pimpl_->fontlist[i - 1].pos() == pos - 1);
 529         // Is position pos is a beginning of a font block?
 530         bool end = !notfound && pimpl_->fontlist[i].pos() == pos;
 531         // Is position pos is the end of a font block?
 532         if (begin && end) { // A single char block
 533                 if (i + 1 < pimpl_->fontlist.size() &&
 534                     pimpl_->fontlist[i + 1].font() == font) {
 535                         // Merge the singleton block with the next block
 536                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 537                         if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 538                                 pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i - 1);
 539                 } else if (i > 0 && pimpl_->fontlist[i - 1].font() == font) {
 540                         // Merge the singleton block with the previous block
 541                         pimpl_->fontlist[i - 1].pos(pos);
 542                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 543                 } else
 544                         pimpl_->fontlist[i].font(font);
 545         } else if (begin) {
 546                 if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 547                         pimpl_->fontlist[i - 1].pos(pos);
 548                 else
 549                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 550                                         Pimpl::FontTable(pos, font));
 551         } else if (end) {
 552                 pimpl_->fontlist[i].pos(pos - 1);
 553                 if (!(i + 1 < pimpl_->fontlist.size() &&
 554                       pimpl_->fontlist[i + 1].font() == font))
 555                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 556                                         Pimpl::FontTable(pos, font));
 557         } else { // The general case. The block is splitted into 3 blocks
 558                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 559                                 Pimpl::FontTable(pos - 1, pimpl_->fontlist[i].font()));
 560                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 561                                 Pimpl::FontTable(pos, font));
 562         }
 563 }
 564
 565
 566 void Paragraph::makeSameLayout(Paragraph const & par)
 567 {
 568         layout(par.layout());
 569         // move to pimpl?
 570         params() = par.params();
 571 }
 572
 573
 574 int Paragraph::stripLeadingSpaces()
 575 {
 576         if (isFreeSpacing())
 577                 return 0;
 578
 579         int i = 0;
 580         while (!empty() && (isNewline(0) || isLineSeparator(0))) {
 581                 pimpl_->eraseIntern(0);
 582                 ++i;
 583         }
 584
 585         return i;
 586 }
 587
 588
 589 bool Paragraph::hasSameLayout(Paragraph const & par) const
 590 {
 591         return
 592                 par.layout() == layout() &&
 593                 params().sameLayout(par.params());
 594 }
 595
 596
 597 Paragraph::depth_type Paragraph::getDepth() const
 598 {
 599         return params().depth();
 600 }
 601
 602
 603 Paragraph::depth_type Paragraph::getMaxDepthAfter() const
 604 {
 605         if (layout()->isEnvironment())
 606                 return params().depth() + 1;
 607         else
 608                 return params().depth();
 609 }
 610
 611
 612 char Paragraph::getAlign() const
 613 {
 614         return params().align();
 615 }
 616
 617
 618 string const & Paragraph::getLabelstring() const
 619 {
 620         return params().labelString();
 621 }
 622
 623
 624 // the next two functions are for the manual labels
 625 string const Paragraph::getLabelWidthString() const
 626 {
 627         if (!params().labelWidthString().empty())
 628                 return params().labelWidthString();
 629         else
 630                 return _("Senseless with this layout!");
 631 }
 632
 633
 634 void Paragraph::setLabelWidthString(string const & s)
 635 {
 636         params().labelWidthString(s);
 637 }
 638
 639
 640 void Paragraph::applyLayout(LyXLayout_ptr const & new_layout)
 641 {
 642         layout(new_layout);
 643         params().labelWidthString(string());
 644         params().align(LYX_ALIGN_LAYOUT);
 645         params().spaceTop(VSpace(VSpace::NONE));
 646         params().spaceBottom(VSpace(VSpace::NONE));
 647         params().spacing(Spacing(Spacing::Default));
 648 }
 649
 650
 651 int Paragraph::beginningOfBody() const
 652 {
 653         if (layout()->labeltype != LABEL_MANUAL)
 654                 return 0;
 655
 656         // Unroll the first two cycles of the loop
 657         // and remember the previous character to
 658         // remove unnecessary getChar() calls
 659         pos_type i = 0;
 660         if (i < size() && !isNewline(i)) {
 661                 ++i;
 662                 char previous_char = 0;
 663                 char temp = 0;
 664                 if (i < size()) {
 665                         previous_char = getChar(i);
 666                         if (!isNewline(i)) {
 667                                 ++i;
 668                                 while (i < size() && previous_char != ' ') {
 669                                         temp = getChar(i);
 670                                         if (isNewline(i))
 671                                                 break;
 672
 673                                         ++i;
 674                                         previous_char = temp;
 675                                 }
 676                         }
 677                 }
 678         }
 679
 680         return i;
 681 }
 682
 683
 684 // returns -1 if inset not found
 685 int Paragraph::getPositionOfInset(InsetOld const * inset) const
 686 {
 687         // Find the entry.
 688         InsetList::const_iterator it = insetlist.begin();
 689         InsetList::const_iterator end = insetlist.end();
 690         for (; it != end; ++it)
 691                 if (it->inset == inset)
 692                         return it->pos;
 693         return -1;
 694 }
 695
 696
 697 InsetBibitem * Paragraph::bibitem() const
 698 {
 699         InsetList::const_iterator it = insetlist.begin();
 700         if (it != insetlist.end() && it->inset->lyxCode() == InsetOld::BIBTEX_CODE)
 701                 return static_cast<InsetBibitem *>(it->inset);
 702         return 0;
 703 }
 704
 705
 706 namespace {
 707
 708 /* paragraphs inside floats need different alignment tags to avoid
 709 unwanted space */
 710
 711 bool noTrivlistCentering(UpdatableInset const * inset)
 712 {
 713         if (inset && inset->owner()) {
 714                 InsetOld::Code const code = inset->owner()->lyxCode();
 715                 return code == InsetOld::FLOAT_CODE ||
 716                         code == InsetOld::WRAP_CODE;
 717         }
 718         return false;
 719 }
 720
 721
 722 string correction(string const & orig)
 723 {
 724         if (orig == "flushleft")
 725                 return "raggedright";
 726         if (orig == "flushright")
 727                 return "raggedleft";
 728         if (orig == "center")
 729                 return "centering";
 730         return orig;
 731 }
 732
 733
 734 string const corrected_env(string const & suffix, string const & env,
 735                            UpdatableInset const * inset)
 736 {
 737         string output = suffix + "{";
 738         if (noTrivlistCentering(inset))
 739                 output += correction(env);
 740         else
 741                 output += env;
 742         return output + "}";
 743 }
 744
 745 } // namespace anon
 746
 747
 748 // This could go to ParagraphParameters if we want to
 749 int Paragraph::startTeXParParams(BufferParams const & bparams,
 750                                  ostream & os, bool moving_arg) const
 751 {
 752         int column = 0;
 753
 754         if (params().noindent()) {
 755                 os << "\\noindent ";
 756                 column += 10;
 757         }
 758
 759         switch (params().align()) {
 760         case LYX_ALIGN_NONE:
 761         case LYX_ALIGN_BLOCK:
 762         case LYX_ALIGN_LAYOUT:
 763         case LYX_ALIGN_SPECIAL:
 764                 break;
 765         case LYX_ALIGN_LEFT:
 766         case LYX_ALIGN_RIGHT:
 767         case LYX_ALIGN_CENTER:
 768                 if (moving_arg) {
 769                         os << "\\protect";
 770                         column = 8;
 771                 }
 772                 break;
 773         }
 774
 775         switch (params().align()) {
 776         case LYX_ALIGN_NONE:
 777         case LYX_ALIGN_BLOCK:
 778         case LYX_ALIGN_LAYOUT:
 779         case LYX_ALIGN_SPECIAL:
 780                 break;
 781         case LYX_ALIGN_LEFT: {
 782                 string output;
 783                 UpdatableInset const * const inset = pimpl_->inset_owner;
 784                 if (getParLanguage(bparams)->babel() != "hebrew")
 785                         output = corrected_env("\\begin", "flushleft", inset);
 786                 else
 787                         output = corrected_env("\\begin", "flushright", inset);
 788                 os << output;
 789                 column += output.size();
 790                 break;
 791         } case LYX_ALIGN_RIGHT: {
 792                 string output;
 793                 UpdatableInset const * const inset = pimpl_->inset_owner;
 794                 if (getParLanguage(bparams)->babel() != "hebrew")
 795                         output = corrected_env("\\begin", "flushright", inset);
 796                 else
 797                         output = corrected_env("\\begin", "flushleft", inset);
 798                 os << output;
 799                 column += output.size();
 800                 break;
 801         } case LYX_ALIGN_CENTER: {
 802                 string output;
 803                 output = corrected_env("\\begin", "center", pimpl_->inset_owner);
 804                 os << output;
 805                 column += output.size();
 806                 break;
 807         }
 808         }
 809
 810         return column;
 811 }
 812
 813
 814 // This could go to ParagraphParameters if we want to
 815 int Paragraph::endTeXParParams(BufferParams const & bparams,
 816                                ostream & os, bool moving_arg) const
 817 {
 818         int column = 0;
 819
 820         switch (params().align()) {
 821         case LYX_ALIGN_NONE:
 822         case LYX_ALIGN_BLOCK:
 823         case LYX_ALIGN_LAYOUT:
 824         case LYX_ALIGN_SPECIAL:
 825                 break;
 826         case LYX_ALIGN_LEFT:
 827         case LYX_ALIGN_RIGHT:
 828         case LYX_ALIGN_CENTER:
 829                 if (moving_arg) {
 830                         os << "\\protect";
 831                         column = 8;
 832                 }
 833                 break;
 834         }
 835
 836         switch (params().align()) {
 837         case LYX_ALIGN_NONE:
 838         case LYX_ALIGN_BLOCK:
 839         case LYX_ALIGN_LAYOUT:
 840         case LYX_ALIGN_SPECIAL:
 841                 break;
 842         case LYX_ALIGN_LEFT: {
 843                 string output;
 844                 UpdatableInset const * const inset = pimpl_->inset_owner;
 845                 if (getParLanguage(bparams)->babel() != "hebrew")
 846                         output = corrected_env("\\par\\end", "flushleft", inset);
 847                 else
 848                         output = corrected_env("\\par\\end", "flushright", inset);
 849                 os << output;
 850                 column += output.size();
 851                 break;
 852         } case LYX_ALIGN_RIGHT: {
 853                 string output;
 854                 UpdatableInset const * const inset = pimpl_->inset_owner;
 855                 if (getParLanguage(bparams)->babel() != "hebrew")
 856                         output = corrected_env("\\par\\end", "flushright", inset);
 857                 else
 858                         output = corrected_env("\\par\\end", "flushleft", inset);
 859                 os << output;
 860                 column += output.size();
 861                 break;
 862         } case LYX_ALIGN_CENTER: {
 863                 string output;
 864                 output = corrected_env("\\par\\end", "center", pimpl_->inset_owner);
 865                 os << output;
 866                 column += output.size();
 867                 break;
 868         }
 869         }
 870
 871         return column;
 872 }
 873
 874
 875 // This one spits out the text of the paragraph
 876 bool Paragraph::simpleTeXOnePar(Buffer const & buf,
 877                                 BufferParams const & bparams,
 878                                 LyXFont const & outerfont,
 879                                 ostream & os, TexRow & texrow,
 880                                 LatexRunParams const & runparams)
 881 {
 882         lyxerr[Debug::LATEX] << "SimpleTeXOnePar...     " << this << endl;
 883
 884         bool return_value = false;
 885
 886         LyXLayout_ptr style;
 887
 888         // well we have to check if we are in an inset with unlimited
 889         // length (all in one row) if that is true then we don't allow
 890         // any special options in the paragraph and also we don't allow
 891         // any environment other then "Standard" to be valid!
 892         bool asdefault =
 893                 (inInset() && inInset()->forceDefaultParagraphs(inInset()));
 894
 895         if (asdefault) {
 896                 style = bparams.getLyXTextClass().defaultLayout();
 897         } else {
 898                 style = layout();
 899         }
 900
 901         LyXFont basefont;
 902
 903         // Maybe we have to create a optional argument.
 904         pos_type body_pos;
 905
 906         // FIXME: can we actually skip this check and just call
 907         // beginningOfBody() ??
 908         if (style->labeltype != LABEL_MANUAL) {
 909                 body_pos = 0;
 910         } else {
 911                 body_pos = beginningOfBody();
 912         }
 913
 914         unsigned int column = 0;
 915
 916         if (body_pos > 0) {
 917                 os << '[';
 918                 ++column;
 919                 basefont = getLabelFont(bparams, outerfont);
 920         } else {
 921                 basefont = getLayoutFont(bparams, outerfont);
 922         }
 923
 924         bool moving_arg = runparams.moving_arg;
 925         moving_arg |= style->needprotect;
 926
 927         // Which font is currently active?
 928         LyXFont running_font(basefont);
 929         // Do we have an open font change?
 930         bool open_font = false;
 931
 932         Change::Type running_change = Change::UNCHANGED;
 933
 934         texrow.start(id(), 0);
 935
 936         // if the paragraph is empty, the loop will not be entered at all
 937         if (empty()) {
 938                 if (style->isCommand()) {
 939                         os << '{';
 940                         ++column;
 941                 }
 942                 if (!asdefault)
 943                         column += startTeXParParams(bparams, os, moving_arg);
 944
 945         }
 946
 947         for (pos_type i = 0; i < size(); ++i) {
 948                 ++column;
 949                 // First char in paragraph or after label?
 950                 if (i == body_pos) {
 951                         if (body_pos > 0) {
 952                                 if (open_font) {
 953                                         column += running_font.latexWriteEndChanges(os, basefont, basefont);
 954                                         open_font = false;
 955                                 }
 956                                 basefont = getLayoutFont(bparams, outerfont);
 957                                 running_font = basefont;
 958                                 os << ']';
 959                                 ++column;
 960                         }
 961                         if (style->isCommand()) {
 962                                 os << '{';
 963                                 ++column;
 964                         }
 965
 966                         if (!asdefault)
 967                                 column += startTeXParParams(bparams, os,
 968                                                             moving_arg);
 969                 }
 970
 971                 value_type c = getChar(i);
 972
 973                 // Fully instantiated font
 974                 LyXFont font = getFont(bparams, i, outerfont);
 975
 976                 LyXFont const last_font = running_font;
 977
 978                 // Spaces at end of font change are simulated to be
 979                 // outside font change, i.e. we write "\textXX{text} "
 980                 // rather than "\textXX{text }". (Asger)
 981                 if (open_font && c == ' ' && i <= size() - 2) {
 982                         LyXFont const & next_font = getFont(bparams, i + 1, outerfont);
 983                         if (next_font != running_font
 984                             && next_font != font) {
 985                                 font = next_font;
 986                         }
 987                 }
 988
 989                 // We end font definition before blanks
 990                 if (open_font &&
 991                     (font != running_font ||
 992                      font.language() != running_font.language()))
 993                 {
 994                         column += running_font.latexWriteEndChanges(os,
 995                                                                     basefont,
 996                                                                     (i == body_pos-1) ? basefont : font);
 997                         running_font = basefont;
 998                         open_font = false;
 999                 }
1000
1001                 // Blanks are printed before start of fontswitch
1002                 if (c == ' ') {
1003                         // Do not print the separation of the optional argument
1004                         if (i != body_pos - 1) {
1005                                 pimpl_->simpleTeXBlanks(os, texrow, i,
1006                                                        column, font, *style);
1007                         }
1008                 }
1009
1010                 // Do we need to change font?
1011                 if ((font != running_font ||
1012                      font.language() != running_font.language()) &&
1013                         i != body_pos - 1)
1014                 {
1015                         column += font.latexWriteStartChanges(os, basefont,
1016                                                               last_font);
1017                         running_font = font;
1018                         open_font = true;
1019                 }
1020
1021                 Change::Type change = pimpl_->lookupChange(i);
1022
1023                 column += Changes::latexMarkChange(os, running_change, change);
1024                 running_change = change;
1025
1026                 LatexRunParams rp = runparams;
1027                 rp.moving_arg = moving_arg;
1028                 rp.free_spacing = style->free_spacing;
1029                 pimpl_->simpleTeXSpecialChars(buf, bparams,
1030                                               os, texrow, runparams,
1031                                               font, running_font,
1032                                               basefont, outerfont, open_font,
1033                                               running_change,
1034                                               *style, i, column, c);
1035         }
1036
1037         column += Changes::latexMarkChange(os,
1038                         running_change, Change::UNCHANGED);
1039
1040         // If we have an open font definition, we have to close it
1041         if (open_font) {
1042 #ifdef FIXED_LANGUAGE_END_DETECTION
1043                 if (next_) {
1044                         running_font
1045                                 .latexWriteEndChanges(os, basefont,
1046                                                       next_->getFont(bparams,
1047                                                       0, outerfont));
1048                 } else {
1049                         running_font.latexWriteEndChanges(os, basefont,
1050                                                           basefont);
1051                 }
1052 #else
1053 #ifdef WITH_WARNINGS
1054 //#warning For now we ALWAYS have to close the foreign font settings if they are
1055 //#warning there as we start another \selectlanguage with the next paragraph if
1056 //#warning we are in need of this. This should be fixed sometime (Jug)
1057 #endif
1058                 running_font.latexWriteEndChanges(os, basefont,  basefont);
1059 #endif
1060         }
1061
1062         // Needed if there is an optional argument but no contents.
1063         if (body_pos > 0 && body_pos == size()) {
1064                 os << "]~";
1065                 return_value = false;
1066         }
1067
1068         if (!asdefault) {
1069                 column += endTeXParParams(bparams, os, moving_arg);
1070         }
1071
1072         lyxerr[Debug::LATEX] << "SimpleTeXOnePar...done " << this << endl;
1073         return return_value;
1074 }
1075
1076
1077 namespace {
1078
1079 // checks, if newcol chars should be put into this line
1080 // writes newline, if necessary.
1081 void sgmlLineBreak(ostream & os, string::size_type & colcount,
1082                           string::size_type newcol)
1083 {
1084         colcount += newcol;
1085         if (colcount > lyxrc.ascii_linelen) {
1086                 os << "\n";
1087                 colcount = newcol; // assume write after this call
1088         }
1089 }
1090
1091 enum PAR_TAG {
1092         NONE=0,
1093         TT = 1,
1094         SF = 2,
1095         BF = 4,
1096         IT = 8,
1097         SL = 16,
1098         EM = 32
1099 };
1100
1101
1102 string tag_name(PAR_TAG const & pt) {
1103         switch (pt) {
1104         case NONE: return "!-- --";
1105         case TT: return "tt";
1106         case SF: return "sf";
1107         case BF: return "bf";
1108         case IT: return "it";
1109         case SL: return "sl";
1110         case EM: return "em";
1111         }
1112         return "";
1113 }
1114
1115
1116 inline
1117 void operator|=(PAR_TAG & p1, PAR_TAG const & p2)
1118 {
1119         p1 = static_cast<PAR_TAG>(p1 | p2);
1120 }
1121
1122
1123 inline
1124 void reset(PAR_TAG & p1, PAR_TAG const & p2)
1125 {
1126         p1 = static_cast<PAR_TAG>(p1 & ~p2);
1127 }
1128
1129 } // anon
1130
1131
1132 // Handle internal paragraph parsing -- layout already processed.
1133 void Paragraph::simpleLinuxDocOnePar(Buffer const & buf,
1134                                      ostream & os,
1135                                      LyXFont const & outerfont,
1136                                      LatexRunParams const & runparams,
1137                                      lyx::depth_type /*depth*/) const
1138 {
1139         LyXLayout_ptr const & style = layout();
1140
1141         string::size_type char_line_count = 5;     // Heuristic choice ;-)
1142
1143         // gets paragraph main font
1144         LyXFont font_old;
1145         bool desc_on;
1146         if (style->labeltype == LABEL_MANUAL) {
1147                 font_old = style->labelfont;
1148                 desc_on = true;
1149         } else {
1150                 font_old = style->font;
1151                 desc_on = false;
1152         }
1153
1154         LyXFont::FONT_FAMILY family_type = LyXFont::ROMAN_FAMILY;
1155         LyXFont::FONT_SERIES series_type = LyXFont::MEDIUM_SERIES;
1156         LyXFont::FONT_SHAPE  shape_type  = LyXFont::UP_SHAPE;
1157         bool is_em = false;
1158
1159         stack<PAR_TAG> tag_state;
1160         // parsing main loop
1161         for (pos_type i = 0; i < size(); ++i) {
1162
1163                 PAR_TAG tag_close = NONE;
1164                 list < PAR_TAG > tag_open;
1165
1166                 LyXFont const font = getFont(buf.params(), i, outerfont);
1167
1168                 if (font_old.family() != font.family()) {
1169                         switch (family_type) {
1170                         case LyXFont::SANS_FAMILY:
1171                                 tag_close |= SF;
1172                                 break;
1173                         case LyXFont::TYPEWRITER_FAMILY:
1174                                 tag_close |= TT;
1175                                 break;
1176                         default:
1177                                 break;
1178                         }
1179
1180                         family_type = font.family();
1181
1182                         switch (family_type) {
1183                         case LyXFont::SANS_FAMILY:
1184                                 tag_open.push_back(SF);
1185                                 break;
1186                         case LyXFont::TYPEWRITER_FAMILY:
1187                                 tag_open.push_back(TT);
1188                                 break;
1189                         default:
1190                                 break;
1191                         }
1192                 }
1193
1194                 if (font_old.series() != font.series()) {
1195                         switch (series_type) {
1196                         case LyXFont::BOLD_SERIES:
1197                                 tag_close |= BF;
1198                                 break;
1199                         default:
1200                                 break;
1201                         }
1202
1203                         series_type = font.series();
1204
1205                         switch (series_type) {
1206                         case LyXFont::BOLD_SERIES:
1207                                 tag_open.push_back(BF);
1208                                 break;
1209                         default:
1210                                 break;
1211                         }
1212
1213                 }
1214
1215                 if (font_old.shape() != font.shape()) {
1216                         switch (shape_type) {
1217                         case LyXFont::ITALIC_SHAPE:
1218                                 tag_close |= IT;
1219                                 break;
1220                         case LyXFont::SLANTED_SHAPE:
1221                                 tag_close |= SL;
1222                                 break;
1223                         default:
1224                                 break;
1225                         }
1226
1227                         shape_type = font.shape();
1228
1229                         switch (shape_type) {
1230                         case LyXFont::ITALIC_SHAPE:
1231                                 tag_open.push_back(IT);
1232                                 break;
1233                         case LyXFont::SLANTED_SHAPE:
1234                                 tag_open.push_back(SL);
1235                                 break;
1236                         default:
1237                                 break;
1238                         }
1239                 }
1240                 // handle <em> tag
1241                 if (font_old.emph() != font.emph()) {
1242                         if (font.emph() == LyXFont::ON) {
1243                                 tag_open.push_back(EM);
1244                                 is_em = true;
1245                         }
1246                         else if (is_em) {
1247                                 tag_close |= EM;
1248                                 is_em = false;
1249                         }
1250                 }
1251
1252                 list < PAR_TAG > temp;
1253                 while (!tag_state.empty() && tag_close) {
1254                         PAR_TAG k =  tag_state.top();
1255                         tag_state.pop();
1256                         os << "</" << tag_name(k) << '>';
1257                         if (tag_close & k)
1258                                 reset(tag_close,k);
1259                         else
1260                                 temp.push_back(k);
1261                 }
1262
1263                 for(list< PAR_TAG >::const_iterator j = temp.begin();
1264                     j != temp.end(); ++j) {
1265                         tag_state.push(*j);
1266                         os << '<' << tag_name(*j) << '>';
1267                 }
1268
1269                 for(list< PAR_TAG >::const_iterator j = tag_open.begin();
1270                     j != tag_open.end(); ++j) {
1271                         tag_state.push(*j);
1272                         os << '<' << tag_name(*j) << '>';
1273                 }
1274
1275                 char c = getChar(i);
1276
1277                 if (c == Paragraph::META_INSET) {
1278                         InsetOld const * inset = getInset(i);
1279                         inset->linuxdoc(buf, os, runparams);
1280                         font_old = font;
1281                         continue;
1282                 }
1283
1284                 if (style->latexparam() == "CDATA") {
1285                         // "TeX"-Mode on == > SGML-Mode on.
1286                         if (c != '\0')
1287                                 os << c;
1288                         ++char_line_count;
1289                 } else {
1290                         bool ws;
1291                         string str;
1292                         boost::tie(ws, str) = sgml::escapeChar(c);
1293                         if (ws && !isFreeSpacing()) {
1294                                 // in freespacing mode, spaces are
1295                                 // non-breaking characters
1296                                 if (desc_on) {// if char is ' ' then...
1297
1298                                         ++char_line_count;
1299                                         sgmlLineBreak(os, char_line_count, 6);
1300                                         os << "</tag>";
1301                                         desc_on = false;
1302                                 } else  {
1303                                         sgmlLineBreak(os, char_line_count, 1);
1304                                         os << c;
1305                                 }
1306                         } else {
1307                                 os << str;
1308                                 char_line_count += str.length();
1309                         }
1310                 }
1311                 font_old = font;
1312         }
1313
1314         while (!tag_state.empty()) {
1315                 os << "</" << tag_name(tag_state.top()) << '>';
1316                 tag_state.pop();
1317         }
1318
1319         // resets description flag correctly
1320         if (desc_on) {
1321                 // <tag> not closed...
1322                 sgmlLineBreak(os, char_line_count, 6);
1323                 os << "</tag>";
1324         }
1325 }
1326
1327
1328 void Paragraph::simpleDocBookOnePar(Buffer const & buf,
1329                                     ostream & os,
1330                                     LyXFont const & outerfont,
1331                                     int & desc_on,
1332                                     LatexRunParams const & runparams,
1333                                     lyx::depth_type depth) const
1334 {
1335         bool emph_flag = false;
1336
1337         LyXLayout_ptr const & style = layout();
1338
1339         LyXFont font_old = (style->labeltype == LABEL_MANUAL ? style->labelfont : style->font);
1340
1341         int char_line_count = depth;
1342         //if (!style.free_spacing)
1343         //      os << string(depth,' ');
1344
1345         // parsing main loop
1346         for (pos_type i = 0; i < size(); ++i) {
1347                 LyXFont font = getFont(buf.params(), i, outerfont);
1348
1349                 // handle <emphasis> tag
1350                 if (font_old.emph() != font.emph()) {
1351                         if (font.emph() == LyXFont::ON) {
1352                                 if (style->latexparam() == "CDATA")
1353                                         os << "]]>";
1354                                 os << "<emphasis>";
1355                                 if (style->latexparam() == "CDATA")
1356                                         os << "<![CDATA[";
1357                                 emph_flag = true;
1358                         } else if (i) {
1359                                 if (style->latexparam() == "CDATA")
1360                                         os << "]]>";
1361                                 os << "</emphasis>";
1362                                 if (style->latexparam() == "CDATA")
1363                                         os << "<![CDATA[";
1364                                 emph_flag = false;
1365                         }
1366                 }
1367
1368
1369                 if (isInset(i)) {
1370                         InsetOld const * inset = getInset(i);
1371                         // don't print the inset in position 0 if desc_on == 3 (label)
1372                         if (i || desc_on != 3) {
1373                                 if (style->latexparam() == "CDATA")
1374                                         os << "]]>";
1375                                 inset->docbook(buf, os, runparams);
1376                                 if (style->latexparam() == "CDATA")
1377                                         os << "<![CDATA[";
1378                         }
1379                 } else {
1380                         char c = getChar(i);
1381                         bool ws;
1382                         string str;
1383                         boost::tie(ws, str) = sgml::escapeChar(c);
1384
1385                         if (style->pass_thru) {
1386                                 os << c;
1387                         } else if (isFreeSpacing() || c != ' ') {
1388                                         os << str;
1389                         } else if (desc_on == 1) {
1390                                 ++char_line_count;
1391                                 os << "\n</term><listitem><para>";
1392                                 desc_on = 2;
1393                         } else {
1394                                 os << ' ';
1395                         }
1396                 }
1397                 font_old = font;
1398         }
1399
1400         if (emph_flag) {
1401                 if (style->latexparam() == "CDATA")
1402                         os << "]]>";
1403                 os << "</emphasis>";
1404                 if (style->latexparam() == "CDATA")
1405                         os << "<![CDATA[";
1406         }
1407
1408         // resets description flag correctly
1409         if (desc_on == 1) {
1410                 // <term> not closed...
1411                 os << "</term>\n<listitem><para>&nbsp;</para>";
1412         }
1413         if (style->free_spacing)
1414                 os << '\n';
1415 }
1416
1417
1418 namespace {
1419
1420 /// return true if the char is a meta-character for an inset
1421 inline
1422 bool IsInsetChar(char c)
1423 {
1424         return (c == Paragraph::META_INSET);
1425 }
1426
1427 } // namespace anon
1428
1429
1430
1431 bool Paragraph::isHfill(pos_type pos) const
1432 {
1433         return IsInsetChar(getChar(pos))
1434                && getInset(pos)->lyxCode() == InsetOld::HFILL_CODE;
1435 }
1436
1437
1438 bool Paragraph::isInset(pos_type pos) const
1439 {
1440         return IsInsetChar(getChar(pos));
1441 }
1442
1443
1444 bool Paragraph::isNewline(pos_type pos) const
1445 {
1446         return IsInsetChar(getChar(pos))
1447                && getInset(pos)->lyxCode() == InsetOld::NEWLINE_CODE;
1448 }
1449
1450
1451 bool Paragraph::isSeparator(pos_type pos) const
1452 {
1453         return IsSeparatorChar(getChar(pos));
1454 }
1455
1456
1457 bool Paragraph::isLineSeparator(pos_type pos) const
1458 {
1459         value_type const c = getChar(pos);
1460         return IsLineSeparatorChar(c)
1461                 || (IsInsetChar(c) && getInset(pos) &&
1462                 getInset(pos)->isLineSeparator());
1463 }
1464
1465
1466 bool Paragraph::isKomma(pos_type pos) const
1467 {
1468         return IsKommaChar(getChar(pos));
1469 }
1470
1471
1472 /// Used by the spellchecker
1473 bool Paragraph::isLetter(pos_type pos) const
1474 {
1475         value_type const c = getChar(pos);
1476         if (IsLetterChar(c))
1477                 return true;
1478         if (isInset(pos))
1479                 return getInset(pos)->isLetter();
1480         // We want to pass the ' and escape chars to ispell
1481         string const extra = lyxrc.isp_esc_chars + '\'';
1482         return contains(extra, c);
1483 }
1484
1485
1486 bool Paragraph::isWord(pos_type pos) const
1487 {
1488         unsigned char const c = getChar(pos);
1489         return !(IsSeparatorChar(c)
1490                   || IsKommaChar(c)
1491                   || IsInsetChar(c));
1492 }
1493
1494
1495 Language const *
1496 Paragraph::getParLanguage(BufferParams const & bparams) const
1497 {
1498         if (!empty())
1499                 return getFirstFontSettings().language();
1500 #warning FIXME we should check the prev par as well (Lgb)
1501         return bparams.language;
1502 }
1503
1504
1505 bool Paragraph::isRightToLeftPar(BufferParams const & bparams) const
1506 {
1507         return lyxrc.rtl_support
1508                 && getParLanguage(bparams)->RightToLeft()
1509                 && !(inInset() && inInset()->owner() &&
1510                      inInset()->owner()->lyxCode() == InsetOld::ERT_CODE);
1511 }
1512
1513
1514 void Paragraph::changeLanguage(BufferParams const & bparams,
1515                                Language const * from, Language const * to)
1516 {
1517         for (pos_type i = 0; i < size(); ++i) {
1518                 LyXFont font = getFontSettings(bparams, i);
1519                 if (font.language() == from) {
1520                         font.setLanguage(to);
1521                         setFont(i, font);
1522                 }
1523         }
1524 }
1525
1526
1527 bool Paragraph::isMultiLingual(BufferParams const & bparams)
1528 {
1529         Language const * doc_language = bparams.language;
1530         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
1531         Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
1532
1533         for (; cit != end; ++cit)
1534                 if (cit->font().language() != ignore_language &&
1535                     cit->font().language() != latex_language &&
1536                     cit->font().language() != doc_language)
1537                         return true;
1538         return false;
1539 }
1540
1541
1542 // Convert the paragraph to a string.
1543 // Used for building the table of contents
1544 string const Paragraph::asString(Buffer const & buffer,
1545                                  bool label) const
1546 {
1547         LatexRunParams runparams;
1548         return asString(buffer, runparams, label);
1549 }
1550
1551
1552 string const Paragraph::asString(Buffer const & buffer,
1553                                  LatexRunParams const & runparams,
1554                                  bool label) const
1555 {
1556 #if 0
1557         string s;
1558         if (label && !params().labelString().empty())
1559                 s += params().labelString() + ' ';
1560
1561         for (pos_type i = 0; i < size(); ++i) {
1562                 value_type c = getChar(i);
1563                 if (IsPrintable(c))
1564                         s += c;
1565                 else if (c == META_INSET &&
1566                          getInset(i)->lyxCode() == InsetOld::MATH_CODE) {
1567                         ostringstream os;
1568                         getInset(i)->ascii(buffer, os, runparams);
1569                         s += subst(STRCONV(os.str()),'\n',' ');
1570                 }
1571         }
1572
1573         return s;
1574 #else
1575         // This should really be done by the caller and not here.
1576         string ret = asString(buffer, runparams, 0, size(), label);
1577         return subst(ret, '\n', ' ');
1578 #endif
1579 }
1580
1581
1582 string const Paragraph::asString(Buffer const & buffer,
1583                                  pos_type beg, pos_type end, bool label) const
1584 {
1585
1586         LatexRunParams const runparams;
1587         return asString(buffer, runparams, beg, end, label);
1588 }
1589
1590
1591 string const Paragraph::asString(Buffer const & buffer,
1592                                  LatexRunParams const & runparams,
1593                                  pos_type beg, pos_type end, bool label) const
1594 {
1595         ostringstream os;
1596
1597         if (beg == 0 && label && !params().labelString().empty())
1598                 os << params().labelString() << ' ';
1599
1600         for (pos_type i = beg; i < end; ++i) {
1601                 value_type const c = getUChar(buffer.params(), i);
1602                 if (IsPrintable(c))
1603                         os << c;
1604                 else if (c == META_INSET)
1605                         getInset(i)->ascii(buffer, os, runparams);
1606         }
1607
1608         return os.str();
1609 }
1610
1611
1612 void Paragraph::setInsetOwner(UpdatableInset * inset)
1613 {
1614         pimpl_->inset_owner = inset;
1615         InsetList::iterator it = insetlist.begin();
1616         InsetList::iterator end = insetlist.end();
1617         for (; it != end; ++it)
1618                 if (it->inset)
1619                         it->inset->setOwner(inset);
1620 }
1621
1622
1623 void Paragraph::deleteInsetsLyXText(BufferView * bv)
1624 {
1625         insetlist.deleteInsetsLyXText(bv);
1626 }
1627
1628
1629 void Paragraph::setContentsFromPar(Paragraph const & par)
1630 {
1631         pimpl_->setContentsFromPar(par);
1632 }
1633
1634
1635 void Paragraph::trackChanges(Change::Type type)
1636 {
1637         pimpl_->trackChanges(type);
1638 }
1639
1640
1641 void Paragraph::untrackChanges()
1642 {
1643         pimpl_->untrackChanges();
1644 }
1645
1646
1647 void Paragraph::cleanChanges()
1648 {
1649         pimpl_->cleanChanges();
1650 }
1651
1652
1653 Change::Type Paragraph::lookupChange(lyx::pos_type pos) const
1654 {
1655         BOOST_ASSERT(!size() || pos < size());
1656         return pimpl_->lookupChange(pos);
1657 }
1658
1659
1660 Change const Paragraph::lookupChangeFull(lyx::pos_type pos) const
1661 {
1662         BOOST_ASSERT(!size() || pos < size());
1663         return pimpl_->lookupChangeFull(pos);
1664 }
1665
1666
1667 bool Paragraph::isChanged(pos_type start, pos_type end) const
1668 {
1669         return pimpl_->isChanged(start, end);
1670 }
1671
1672
1673 bool Paragraph::isChangeEdited(pos_type start, pos_type end) const
1674 {
1675         return pimpl_->isChangeEdited(start, end);
1676 }
1677
1678
1679 void Paragraph::setChange(lyx::pos_type pos, Change::Type type)
1680 {
1681         pimpl_->setChange(pos, type);
1682
1683 }
1684
1685
1686 void Paragraph::markErased()
1687 {
1688         pimpl_->markErased();
1689 }
1690
1691
1692 void Paragraph::acceptChange(pos_type start, pos_type end)
1693 {
1694         return pimpl_->acceptChange(start, end);
1695 }
1696
1697
1698 void Paragraph::rejectChange(pos_type start, pos_type end)
1699 {
1700         return pimpl_->rejectChange(start, end);
1701 }
1702
1703
1704 Paragraph::value_type Paragraph::getChar(pos_type pos) const
1705 {
1706         // This is in the critical path!
1707         pos_type const siz = text_.size();
1708
1709         BOOST_ASSERT(0 <= pos);
1710         BOOST_ASSERT(pos <= siz);
1711
1712         if (pos == siz) {
1713                 lyxerr << "getChar() on pos " << pos << " in par id "
1714                        << id() << " of size " << siz
1715                        << "  is a bit silly !" << endl;
1716                 BOOST_ASSERT(false);
1717                 return '\0';
1718         }
1719
1720         return text_[pos];
1721 }
1722
1723
1724 int Paragraph::id() const
1725 {
1726         return pimpl_->id_;
1727 }
1728
1729
1730 LyXLayout_ptr const & Paragraph::layout() const
1731 {
1732 /*
1733         InsetOld * inset = inInset();
1734         if (inset && inset->lyxCode() == InsetOld::ENVIRONMENT_CODE)
1735                 return static_cast<InsetEnvironment*>(inset)->layout();
1736 */
1737         return layout_;
1738 }
1739
1740
1741 void Paragraph::layout(LyXLayout_ptr const & new_layout)
1742 {
1743         layout_ = new_layout;
1744 }
1745
1746
1747 UpdatableInset * Paragraph::inInset() const
1748 {
1749         return pimpl_->inset_owner;
1750 }
1751
1752
1753 void Paragraph::clearContents()
1754 {
1755         text_.clear();
1756 }
1757
1758
1759 void Paragraph::setChar(pos_type pos, value_type c)
1760 {
1761         text_[pos] = c;
1762 }
1763
1764
1765 ParagraphParameters & Paragraph::params()
1766 {
1767         return pimpl_->params;
1768 }
1769
1770
1771 ParagraphParameters const & Paragraph::params() const
1772 {
1773         return pimpl_->params;
1774 }
1775
1776
1777 bool Paragraph::isFreeSpacing() const
1778 {
1779         if (layout()->free_spacing)
1780                 return true;
1781
1782         // for now we just need this, later should we need this in some
1783         // other way we can always add a function to InsetOld too.
1784         if (pimpl_->inset_owner && pimpl_->inset_owner->owner())
1785                 return pimpl_->inset_owner->owner()->lyxCode() == InsetOld::ERT_CODE;
1786         return false;
1787 }
1788
1789
1790 bool Paragraph::allowEmpty() const
1791 {
1792         if (layout()->keepempty)
1793                 return true;
1794         if (pimpl_->inset_owner && pimpl_->inset_owner->owner())
1795                 return pimpl_->inset_owner->owner()->lyxCode() == InsetOld::ERT_CODE;
1796         return false;
1797 }
1798
1799
1800 RowList::iterator Paragraph::getRow(pos_type pos)
1801 {
1802         RowList::iterator rit = rows.end();
1803         RowList::iterator const begin = rows.begin();
1804
1805         for (--rit; rit != begin && rit->pos() > pos; --rit)
1806                 ;
1807
1808         return rit;
1809 }
1810
1811
1812 unsigned char Paragraph::transformChar(unsigned char c, pos_type pos) const
1813 {
1814         if (!Encodings::is_arabic(c))
1815                 if (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 && IsDigit(c))
1816                         return c + (0xb0 - '0');
1817                 else
1818                         return c;
1819
1820         unsigned char const prev_char = pos > 0 ? getChar(pos - 1) : ' ';
1821         unsigned char next_char = ' ';
1822
1823         for (pos_type i = pos + 1, end = size(); i < end; ++i) {
1824                 unsigned char const par_char = getChar(i);
1825                 if (!Encodings::IsComposeChar_arabic(par_char)) {
1826                         next_char = par_char;
1827                         break;
1828                 }
1829         }
1830
1831         if (Encodings::is_arabic(next_char)) {
1832                 if (Encodings::is_arabic(prev_char) &&
1833                         !Encodings::is_arabic_special(prev_char))
1834                         return Encodings::TransformChar(c, Encodings::FORM_MEDIAL);
1835                 else
1836                         return Encodings::TransformChar(c, Encodings::FORM_INITIAL);
1837         } else {
1838                 if (Encodings::is_arabic(prev_char) &&
1839                         !Encodings::is_arabic_special(prev_char))
1840                         return Encodings::TransformChar(c, Encodings::FORM_FINAL);
1841                 else
1842                         return Encodings::TransformChar(c, Encodings::FORM_ISOLATED);
1843         }
1844 }