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 "lyxfont.h"
  31 #include "lyxrc.h"
  32 #include "lyxrow.h"
  33 #include "outputparams.h"
  34 #include "paragraph_funcs.h"
  35 #include "ParagraphList_fwd.h"
  36 #include "sgml.h"
  37 #include "texrow.h"
  38 #include "vspace.h"
  39
  40 #include "insets/insetbibitem.h"
  41 #include "insets/insetoptarg.h"
  42
  43 #include "support/lstrings.h"
  44 #include "support/textutils.h"
  45 #include "support/tostr.h"
  46
  47 #include <boost/tuple/tuple.hpp>
  48 #include <boost/bind.hpp>
  49
  50 #include <list>
  51 #include <stack>
  52 #include <sstream>
  53
  54 using lyx::pos_type;
  55
  56 using lyx::support::subst;
  57
  58 using std::distance;
  59 using std::endl;
  60 using std::list;
  61 using std::stack;
  62 using std::string;
  63 using std::ostream;
  64 using std::ostringstream;
  65
  66
  67 ParagraphList::ParagraphList()
  68 {}
  69
  70
  71 Paragraph::Paragraph()
  72         : begin_of_body_(0), pimpl_(new Paragraph::Pimpl(this))
  73 {
  74         itemdepth = 0;
  75         params().clear();
  76 }
  77
  78
  79 Paragraph::Paragraph(Paragraph const & par)
  80         :       itemdepth(par.itemdepth), insetlist(par.insetlist),
  81                 dim_(par.dim_),
  82                 rows_(par.rows_), layout_(par.layout_),
  83                 text_(par.text_), begin_of_body_(par.begin_of_body_),
  84           pimpl_(new Paragraph::Pimpl(*par.pimpl_, this))
  85 {
  86         //lyxerr << "Paragraph::Paragraph(Paragraph const&)" << endl;
  87         InsetList::iterator it = insetlist.begin();
  88         InsetList::iterator end = insetlist.end();
  89         for (; it != end; ++it)
  90                 it->inset = it->inset->clone().release();
  91 }
  92
  93
  94 Paragraph & Paragraph::operator=(Paragraph const & par)
  95 {
  96         // needed as we will destroy the pimpl_ before copying it
  97         if (&par != this) {
  98                 itemdepth = par.itemdepth;
  99
 100                 insetlist = par.insetlist;
 101                 InsetList::iterator it = insetlist.begin();
 102                 InsetList::iterator end = insetlist.end();
 103                 for (; it != end; ++it)
 104                         it->inset = it->inset->clone().release();
 105
 106                 rows_ = par.rows_;
 107                 dim_ = par.dim_;
 108                 layout_ = par.layout();
 109                 text_ = par.text_;
 110                 begin_of_body_ = par.begin_of_body_;
 111
 112                 delete pimpl_;
 113                 pimpl_ = new Pimpl(*par.pimpl_, this);
 114         }
 115         return *this;
 116 }
 117
 118
 119 Paragraph::~Paragraph()
 120 {
 121         delete pimpl_;
 122         //
 123         //lyxerr << "Paragraph::paragraph_id = "
 124         //       << Paragraph::paragraph_id << endl;
 125 }
 126
 127
 128 void Paragraph::write(Buffer const & buf, ostream & os,
 129                           BufferParams const & bparams,
 130                           depth_type & dth) const
 131 {
 132         // The beginning or end of a deeper (i.e. nested) area?
 133         if (dth != params().depth()) {
 134                 if (params().depth() > dth) {
 135                         while (params().depth() > dth) {
 136                                 os << "\n\\begin_deeper";
 137                                 ++dth;
 138                         }
 139                 } else {
 140                         while (params().depth() < dth) {
 141                                 os << "\n\\end_deeper";
 142                                 --dth;
 143                         }
 144                 }
 145         }
 146
 147         // First write the layout
 148         os << "\n\\begin_layout " << layout()->name() << '\n';
 149
 150         params().write(os);
 151
 152         LyXFont font1(LyXFont::ALL_INHERIT, bparams.language);
 153
 154         Change running_change = Change(Change::UNCHANGED);
 155         lyx::time_type const curtime(lyx::current_time());
 156
 157         int column = 0;
 158         for (pos_type i = 0; i < size(); ++i) {
 159                 if (!i) {
 160                         os << '\n';
 161                         column = 0;
 162                 }
 163
 164                 Change change = pimpl_->lookupChangeFull(i);
 165                 Changes::lyxMarkChange(os, column, curtime, running_change, change);
 166                 running_change = change;
 167
 168                 // Write font changes
 169                 LyXFont font2 = getFontSettings(bparams, i);
 170                 if (font2 != font1) {
 171                         font2.lyxWriteChanges(font1, os);
 172                         column = 0;
 173                         font1 = font2;
 174                 }
 175
 176                 value_type const c = getChar(i);
 177                 switch (c) {
 178                 case META_INSET:
 179                 {
 180                         InsetBase const * inset = getInset(i);
 181                         if (inset)
 182                                 if (inset->directWrite()) {
 183                                         // international char, let it write
 184                                         // code directly so it's shorter in
 185                                         // the file
 186                                         inset->write(buf, os);
 187                                 } else {
 188                                         os << "\n\\begin_inset ";
 189                                         inset->write(buf, os);
 190                                         os << "\n\\end_inset\n\n";
 191                                         column = 0;
 192                                 }
 193                 }
 194                 break;
 195                 case '\\':
 196                         os << "\n\\backslash\n";
 197                         column = 0;
 198                         break;
 199                 case '.':
 200                         if (i + 1 < size() && getChar(i + 1) == ' ') {
 201                                 os << ".\n";
 202                                 column = 0;
 203                         } else
 204                                 os << '.';
 205                         break;
 206                 default:
 207                         if ((column > 70 && c == ' ')
 208                             || column > 79) {
 209                                 os << '\n';
 210                                 column = 0;
 211                         }
 212                         // this check is to amend a bug. LyX sometimes
 213                         // inserts '\0' this could cause problems.
 214                         if (c != '\0')
 215                                 os << c;
 216                         else
 217                                 lyxerr << "ERROR (Paragraph::writeFile):"
 218                                         " NULL char in structure." << endl;
 219                         ++column;
 220                         break;
 221                 }
 222         }
 223
 224         // to make reading work properly
 225         if (!size()) {
 226                 running_change = pimpl_->lookupChange(0);
 227                 Changes::lyxMarkChange(os, column, curtime,
 228                         Change(Change::UNCHANGED), running_change);
 229         }
 230         Changes::lyxMarkChange(os, column, curtime,
 231                 running_change, Change(Change::UNCHANGED));
 232
 233         os << "\n\\end_layout\n";
 234 }
 235
 236
 237 void Paragraph::validate(LaTeXFeatures & features) const
 238 {
 239         pimpl_->validate(features, *layout());
 240 }
 241
 242
 243 void Paragraph::eraseIntern(lyx::pos_type pos)
 244 {
 245         pimpl_->eraseIntern(pos);
 246 }
 247
 248
 249 bool Paragraph::erase(pos_type pos)
 250 {
 251         return pimpl_->erase(pos);
 252 }
 253
 254
 255 int Paragraph::erase(pos_type start, pos_type end)
 256 {
 257         return pimpl_->erase(start, end);
 258 }
 259
 260
 261 void Paragraph::insert(pos_type start, string const & str,
 262                        LyXFont const & font)
 263 {
 264         int size = str.size();
 265         for (int i = 0 ; i < size ; ++i)
 266                 insertChar(start + i, str[i], font);
 267 }
 268
 269
 270 bool Paragraph::checkInsertChar(LyXFont &)
 271 {
 272         return true;
 273 }
 274
 275
 276 void Paragraph::insertChar(pos_type pos, Paragraph::value_type c,
 277                            Change change)
 278 {
 279         pimpl_->insertChar(pos, c, change);
 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, change);
 287         setFont(pos, font);
 288 }
 289
 290
 291 void Paragraph::insertInset(pos_type pos, InsetBase * inset, Change change)
 292 {
 293         pimpl_->insertInset(pos, inset, change);
 294 }
 295
 296
 297 void Paragraph::insertInset(pos_type pos, InsetBase * inset,
 298                             LyXFont const & font, Change change)
 299 {
 300         pimpl_->insertInset(pos, inset, change);
 301         setFont(pos, font);
 302 }
 303
 304
 305 bool Paragraph::insetAllowed(InsetBase_code code)
 306 {
 307         return !pimpl_->inset_owner || pimpl_->inset_owner->insetAllowed(code);
 308 }
 309
 310
 311 InsetBase * Paragraph::getInset(pos_type pos)
 312 {
 313         BOOST_ASSERT(pos < size());
 314         return insetlist.get(pos);
 315 }
 316
 317
 318 InsetBase const * Paragraph::getInset(pos_type pos) const
 319 {
 320         BOOST_ASSERT(pos < size());
 321         return insetlist.get(pos);
 322 }
 323
 324
 325 // Gets uninstantiated font setting at position.
 326 LyXFont const Paragraph::getFontSettings(BufferParams const & bparams,
 327                                          pos_type pos) const
 328 {
 329         if (pos > size()) {
 330                 lyxerr << " pos: " << pos << " size: " << size() << endl;
 331                 BOOST_ASSERT(pos <= size());
 332         }
 333
 334         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 335         Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
 336         for (; cit != end; ++cit)
 337                 if (cit->pos() >= pos)
 338                         break;
 339
 340         if (cit != end)
 341                 return cit->font();
 342
 343         if (pos == size() && !empty())
 344                 return getFontSettings(bparams, pos - 1);
 345
 346         return LyXFont(LyXFont::ALL_INHERIT, getParLanguage(bparams));
 347 }
 348
 349
 350 lyx::pos_type Paragraph::getEndPosOfFontSpan(lyx::pos_type pos) const
 351 {
 352         BOOST_ASSERT(pos <= size());
 353
 354         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 355         Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
 356         for (; cit != end; ++cit)
 357                 if (cit->pos() >= pos)
 358                         return cit->pos();
 359
 360         // This should not happen, but if so, we take no chances.
 361         //lyxerr << "Paragraph::getEndPosOfFontSpan: This should not happen!"
 362         //      << endl;
 363         return pos;
 364 }
 365
 366
 367 // Gets uninstantiated font setting at position 0
 368 LyXFont const Paragraph::getFirstFontSettings() const
 369 {
 370         if (!empty() && !pimpl_->fontlist.empty())
 371                 return pimpl_->fontlist[0].font();
 372
 373         return LyXFont(LyXFont::ALL_INHERIT);
 374 }
 375
 376
 377 // Gets the fully instantiated font at a given position in a paragraph
 378 // This is basically the same function as LyXText::GetFont() in text2.C.
 379 // The difference is that this one is used for generating the LaTeX file,
 380 // and thus cosmetic "improvements" are disallowed: This has to deliver
 381 // the true picture of the buffer. (Asger)
 382 LyXFont const Paragraph::getFont(BufferParams const & bparams, pos_type pos,
 383                                  LyXFont const & outerfont) const
 384 {
 385         BOOST_ASSERT(pos >= 0);
 386
 387         LyXLayout_ptr const & lout = layout();
 388
 389         pos_type const body_pos = beginOfBody();
 390
 391         LyXFont layoutfont;
 392         if (pos < body_pos)
 393                 layoutfont = lout->labelfont;
 394         else
 395                 layoutfont = lout->font;
 396
 397         LyXFont font = getFontSettings(bparams, pos);
 398         font.realize(layoutfont);
 399         font.realize(outerfont);
 400         font.realize(bparams.getLyXTextClass().defaultfont());
 401
 402         return font;
 403 }
 404
 405
 406 LyXFont const Paragraph::getLabelFont
 407         (BufferParams const & bparams, LyXFont const & outerfont) const
 408 {
 409         LyXFont tmpfont = layout()->labelfont;
 410         tmpfont.setLanguage(getParLanguage(bparams));
 411         tmpfont.realize(outerfont);
 412         tmpfont.realize(bparams.getLyXTextClass().defaultfont());
 413         return tmpfont;
 414 }
 415
 416
 417 LyXFont const Paragraph::getLayoutFont
 418         (BufferParams const & bparams, LyXFont const & outerfont) const
 419 {
 420         LyXFont tmpfont = layout()->font;
 421         tmpfont.setLanguage(getParLanguage(bparams));
 422         tmpfont.realize(outerfont);
 423         tmpfont.realize(bparams.getLyXTextClass().defaultfont());
 424         return tmpfont;
 425 }
 426
 427
 428 /// Returns the height of the highest font in range
 429 LyXFont_size Paragraph::highestFontInRange
 430         (pos_type startpos, pos_type endpos, LyXFont_size def_size) const
 431 {
 432         if (pimpl_->fontlist.empty())
 433                 return def_size;
 434
 435         Pimpl::FontList::const_iterator end_it = pimpl_->fontlist.begin();
 436         Pimpl::FontList::const_iterator const end = pimpl_->fontlist.end();
 437         for (; end_it != end; ++end_it) {
 438                 if (end_it->pos() >= endpos)
 439                         break;
 440         }
 441
 442         if (end_it != end)
 443                 ++end_it;
 444
 445         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 446         for (; cit != end; ++cit) {
 447                 if (cit->pos() >= startpos)
 448                         break;
 449         }
 450
 451         LyXFont::FONT_SIZE maxsize = LyXFont::SIZE_TINY;
 452         for (; cit != end_it; ++cit) {
 453                 LyXFont::FONT_SIZE size = cit->font().size();
 454                 if (size == LyXFont::INHERIT_SIZE)
 455                         size = def_size;
 456                 if (size > maxsize && size <= LyXFont::SIZE_HUGER)
 457                         maxsize = size;
 458         }
 459         return maxsize;
 460 }
 461
 462
 463 Paragraph::value_type
 464 Paragraph::getUChar(BufferParams const & bparams, pos_type pos) const
 465 {
 466         value_type c = getChar(pos);
 467         if (!lyxrc.rtl_support)
 468                 return c;
 469
 470         value_type uc = c;
 471         switch (c) {
 472         case '(':
 473                 uc = ')';
 474                 break;
 475         case ')':
 476                 uc = '(';
 477                 break;
 478         case '[':
 479                 uc = ']';
 480                 break;
 481         case ']':
 482                 uc = '[';
 483                 break;
 484         case '{':
 485                 uc = '}';
 486                 break;
 487         case '}':
 488                 uc = '{';
 489                 break;
 490         case '<':
 491                 uc = '>';
 492                 break;
 493         case '>':
 494                 uc = '<';
 495                 break;
 496         }
 497         if (uc != c && getFontSettings(bparams, pos).isRightToLeft())
 498                 return uc;
 499         else
 500                 return c;
 501 }
 502
 503
 504 void Paragraph::setFont(pos_type pos, LyXFont const & font)
 505 {
 506         BOOST_ASSERT(pos <= size());
 507
 508         // First, reduce font against layout/label font
 509         // Update: The setCharFont() routine in text2.C already
 510         // reduces font, so we don't need to do that here. (Asger)
 511         // No need to simplify this because it will disappear
 512         // in a new kernel. (Asger)
 513         // Next search font table
 514
 515         Pimpl::FontList::iterator beg = pimpl_->fontlist.begin();
 516         Pimpl::FontList::iterator it = beg;
 517         Pimpl::FontList::iterator endit = pimpl_->fontlist.end();
 518         for (; it != endit; ++it) {
 519                 if (it->pos() >= pos)
 520                         break;
 521         }
 522         unsigned int i = distance(beg, it);
 523         bool notfound = (it == endit);
 524
 525         if (!notfound && pimpl_->fontlist[i].font() == font)
 526                 return;
 527
 528         bool begin = pos == 0 || notfound ||
 529                 (i > 0 && pimpl_->fontlist[i - 1].pos() == pos - 1);
 530         // Is position pos is a beginning of a font block?
 531         bool end = !notfound && pimpl_->fontlist[i].pos() == pos;
 532         // Is position pos is the end of a font block?
 533         if (begin && end) { // A single char block
 534                 if (i + 1 < pimpl_->fontlist.size() &&
 535                     pimpl_->fontlist[i + 1].font() == font) {
 536                         // Merge the singleton block with the next block
 537                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 538                         if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 539                                 pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i - 1);
 540                 } else if (i > 0 && pimpl_->fontlist[i - 1].font() == font) {
 541                         // Merge the singleton block with the previous block
 542                         pimpl_->fontlist[i - 1].pos(pos);
 543                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 544                 } else
 545                         pimpl_->fontlist[i].font(font);
 546         } else if (begin) {
 547                 if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 548                         pimpl_->fontlist[i - 1].pos(pos);
 549                 else
 550                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 551                                         Pimpl::FontTable(pos, font));
 552         } else if (end) {
 553                 pimpl_->fontlist[i].pos(pos - 1);
 554                 if (!(i + 1 < pimpl_->fontlist.size() &&
 555                       pimpl_->fontlist[i + 1].font() == font))
 556                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 557                                         Pimpl::FontTable(pos, font));
 558         } else { // The general case. The block is splitted into 3 blocks
 559                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 560                                 Pimpl::FontTable(pos - 1, pimpl_->fontlist[i].font()));
 561                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 562                                 Pimpl::FontTable(pos, font));
 563         }
 564 }
 565
 566
 567 void Paragraph::makeSameLayout(Paragraph const & par)
 568 {
 569         layout(par.layout());
 570         // move to pimpl?
 571         params() = par.params();
 572 }
 573
 574
 575 int Paragraph::stripLeadingSpaces()
 576 {
 577         if (isFreeSpacing())
 578                 return 0;
 579
 580         int i = 0;
 581         while (!empty() && (isNewline(0) || isLineSeparator(0))) {
 582                 pimpl_->eraseIntern(0);
 583                 ++i;
 584         }
 585
 586         return i;
 587 }
 588
 589
 590 bool Paragraph::hasSameLayout(Paragraph const & par) const
 591 {
 592         return par.layout() == layout() && params().sameLayout(par.params());
 593 }
 594
 595
 596 Paragraph::depth_type Paragraph::getDepth() const
 597 {
 598         return params().depth();
 599 }
 600
 601
 602 Paragraph::depth_type Paragraph::getMaxDepthAfter() const
 603 {
 604         if (layout()->isEnvironment())
 605                 return params().depth() + 1;
 606         else
 607                 return params().depth();
 608 }
 609
 610
 611 char Paragraph::getAlign() const
 612 {
 613         return params().align();
 614 }
 615
 616
 617 string const & Paragraph::getLabelstring() const
 618 {
 619         return params().labelString();
 620 }
 621
 622
 623 // the next two functions are for the manual labels
 624 string const Paragraph::getLabelWidthString() const
 625 {
 626         if (!params().labelWidthString().empty())
 627                 return params().labelWidthString();
 628         else
 629                 return _("Senseless with this layout!");
 630 }
 631
 632
 633 void Paragraph::setLabelWidthString(string const & s)
 634 {
 635         params().labelWidthString(s);
 636 }
 637
 638
 639 void Paragraph::applyLayout(LyXLayout_ptr const & new_layout)
 640 {
 641         layout(new_layout);
 642         params().labelWidthString(string());
 643         params().align(LYX_ALIGN_LAYOUT);
 644         params().spacing(Spacing(Spacing::Default));
 645 }
 646
 647
 648 pos_type Paragraph::beginOfBody() const
 649 {
 650         return begin_of_body_;
 651 }
 652
 653
 654 void Paragraph::setBeginOfBody()
 655 {
 656         if (layout()->labeltype != LABEL_MANUAL) {
 657                 begin_of_body_ = 0;
 658                 return;
 659         }
 660
 661         // Unroll the first two cycles of the loop
 662         // and remember the previous character to
 663         // remove unnecessary getChar() calls
 664         pos_type i = 0;
 665         pos_type end = size();
 666         if (i < end && !isNewline(i)) {
 667                 ++i;
 668                 char previous_char = 0;
 669                 char temp = 0;
 670                 if (i < end) {
 671                         previous_char = text_[i];
 672                         if (!isNewline(i)) {
 673                                 ++i;
 674                                 while (i < end && previous_char != ' ') {
 675                                         temp = text_[i];
 676                                         if (isNewline(i))
 677                                                 break;
 678                                         ++i;
 679                                         previous_char = temp;
 680                                 }
 681                         }
 682                 }
 683         }
 684
 685         begin_of_body_ = i;
 686 }
 687
 688
 689 // returns -1 if inset not found
 690 int Paragraph::getPositionOfInset(InsetBase const * inset) const
 691 {
 692         // Find the entry.
 693         InsetList::const_iterator it = insetlist.begin();
 694         InsetList::const_iterator end = insetlist.end();
 695         for (; it != end; ++it)
 696                 if (it->inset == inset)
 697                         return it->pos;
 698         return -1;
 699 }
 700
 701
 702 InsetBibitem * Paragraph::bibitem() const
 703 {
 704         if (!insetlist.empty()) {
 705                 InsetBase * inset = insetlist.begin()->inset;
 706                 if (inset->lyxCode() == InsetBase::BIBTEX_CODE)
 707                         return static_cast<InsetBibitem *>(inset);
 708         }
 709         return 0;
 710 }
 711
 712
 713 bool Paragraph::forceDefaultParagraphs() const
 714 {
 715         return inInset() && inInset()->forceDefaultParagraphs(inInset());
 716 }
 717
 718
 719 namespace {
 720
 721 // paragraphs inside floats need different alignment tags to avoid
 722 // unwanted space
 723
 724 bool noTrivlistCentering(InsetBase::Code code)
 725 {
 726         return code == InsetBase::FLOAT_CODE || code == InsetBase::WRAP_CODE;
 727 }
 728
 729
 730 string correction(string const & orig)
 731 {
 732         if (orig == "flushleft")
 733                 return "raggedright";
 734         if (orig == "flushright")
 735                 return "raggedleft";
 736         if (orig == "center")
 737                 return "centering";
 738         return orig;
 739 }
 740
 741
 742 string const corrected_env(string const & suffix, string const & env,
 743         InsetBase::Code code)
 744 {
 745         string output = suffix + "{";
 746         if (noTrivlistCentering(code))
 747                 output += correction(env);
 748         else
 749                 output += env;
 750         return output + "}";
 751 }
 752
 753 } // namespace anon
 754
 755
 756 // This could go to ParagraphParameters if we want to
 757 int Paragraph::startTeXParParams(BufferParams const & bparams,
 758                                  ostream & os, bool moving_arg) const
 759 {
 760         int column = 0;
 761
 762         if (params().noindent()) {
 763                 os << "\\noindent ";
 764                 column += 10;
 765         }
 766
 767         switch (params().align()) {
 768         case LYX_ALIGN_NONE:
 769         case LYX_ALIGN_BLOCK:
 770         case LYX_ALIGN_LAYOUT:
 771         case LYX_ALIGN_SPECIAL:
 772                 break;
 773         case LYX_ALIGN_LEFT:
 774         case LYX_ALIGN_RIGHT:
 775         case LYX_ALIGN_CENTER:
 776                 if (moving_arg) {
 777                         os << "\\protect";
 778                         column += 8;
 779                 }
 780                 break;
 781         }
 782
 783         switch (params().align()) {
 784         case LYX_ALIGN_NONE:
 785         case LYX_ALIGN_BLOCK:
 786         case LYX_ALIGN_LAYOUT:
 787         case LYX_ALIGN_SPECIAL:
 788                 break;
 789         case LYX_ALIGN_LEFT: {
 790                 string output;
 791                 if (getParLanguage(bparams)->babel() != "hebrew")
 792                         output = corrected_env("\\begin", "flushleft", ownerCode());
 793                 else
 794                         output = corrected_env("\\begin", "flushright", ownerCode());
 795                 os << output;
 796                 column += output.size();
 797                 break;
 798         } case LYX_ALIGN_RIGHT: {
 799                 string output;
 800                 if (getParLanguage(bparams)->babel() != "hebrew")
 801                         output = corrected_env("\\begin", "flushright", ownerCode());
 802                 else
 803                         output = corrected_env("\\begin", "flushleft", ownerCode());
 804                 os << output;
 805                 column += output.size();
 806                 break;
 807         } case LYX_ALIGN_CENTER: {
 808                 string output;
 809                 output = corrected_env("\\begin", "center", ownerCode());
 810                 os << output;
 811                 column += output.size();
 812                 break;
 813         }
 814         }
 815
 816         return column;
 817 }
 818
 819
 820 // This could go to ParagraphParameters if we want to
 821 int Paragraph::endTeXParParams(BufferParams const & bparams,
 822                                ostream & os, bool moving_arg) const
 823 {
 824         int column = 0;
 825
 826         switch (params().align()) {
 827         case LYX_ALIGN_NONE:
 828         case LYX_ALIGN_BLOCK:
 829         case LYX_ALIGN_LAYOUT:
 830         case LYX_ALIGN_SPECIAL:
 831                 break;
 832         case LYX_ALIGN_LEFT:
 833         case LYX_ALIGN_RIGHT:
 834         case LYX_ALIGN_CENTER:
 835                 if (moving_arg) {
 836                         os << "\\protect";
 837                         column = 8;
 838                 }
 839                 break;
 840         }
 841
 842         switch (params().align()) {
 843         case LYX_ALIGN_NONE:
 844         case LYX_ALIGN_BLOCK:
 845         case LYX_ALIGN_LAYOUT:
 846         case LYX_ALIGN_SPECIAL:
 847                 break;
 848         case LYX_ALIGN_LEFT: {
 849                 string output;
 850                 if (getParLanguage(bparams)->babel() != "hebrew")
 851                         output = corrected_env("\\par\\end", "flushleft", ownerCode());
 852                 else
 853                         output = corrected_env("\\par\\end", "flushright", ownerCode());
 854                 os << output;
 855                 column += output.size();
 856                 break;
 857         } case LYX_ALIGN_RIGHT: {
 858                 string output;
 859                 if (getParLanguage(bparams)->babel() != "hebrew")
 860                         output = corrected_env("\\par\\end", "flushright", ownerCode());
 861                 else
 862                         output = corrected_env("\\par\\end", "flushleft", ownerCode());
 863                 os << output;
 864                 column += output.size();
 865                 break;
 866         } case LYX_ALIGN_CENTER: {
 867                 string output;
 868                 output = corrected_env("\\par\\end", "center", ownerCode());
 869                 os << output;
 870                 column += output.size();
 871                 break;
 872         }
 873         }
 874
 875         return column;
 876 }
 877
 878
 879 // This one spits out the text of the paragraph
 880 bool Paragraph::simpleTeXOnePar(Buffer const & buf,
 881                                 BufferParams const & bparams,
 882                                 LyXFont const & outerfont,
 883                                 ostream & os, TexRow & texrow,
 884                                 OutputParams const & runparams) const
 885 {
 886         lyxerr[Debug::LATEX] << "SimpleTeXOnePar...     " << this << endl;
 887
 888         bool return_value = false;
 889
 890         LyXLayout_ptr style;
 891
 892         // well we have to check if we are in an inset with unlimited
 893         // length (all in one row) if that is true then we don't allow
 894         // any special options in the paragraph and also we don't allow
 895         // any environment other then "Standard" to be valid!
 896         bool asdefault = forceDefaultParagraphs();
 897
 898         if (asdefault) {
 899                 style = bparams.getLyXTextClass().defaultLayout();
 900         } else {
 901                 style = layout();
 902         }
 903
 904         LyXFont basefont;
 905
 906         // Maybe we have to create a optional argument.
 907         pos_type body_pos = beginOfBody();
 908         unsigned int column = 0;
 909
 910         if (body_pos > 0) {
 911                 // the optional argument is kept in curly brackets in
 912                 // case it contains a ']'
 913                 os << "[{";
 914                 column += 2;
 915                 basefont = getLabelFont(bparams, outerfont);
 916         } else {
 917                 basefont = getLayoutFont(bparams, outerfont);
 918         }
 919
 920         // Which font is currently active?
 921         LyXFont running_font(basefont);
 922         // Do we have an open font change?
 923         bool open_font = false;
 924
 925         Change::Type running_change = Change::UNCHANGED;
 926
 927         texrow.start(id(), 0);
 928
 929         // if the paragraph is empty, the loop will not be entered at all
 930         if (empty()) {
 931                 if (style->isCommand()) {
 932                         os << '{';
 933                         ++column;
 934                 }
 935                 if (!asdefault)
 936                         column += startTeXParParams(bparams, os,
 937                                                     runparams.moving_arg);
 938         }
 939
 940         for (pos_type i = 0; i < size(); ++i) {
 941                 ++column;
 942                 // First char in paragraph or after label?
 943                 if (i == body_pos) {
 944                         if (body_pos > 0) {
 945                                 if (open_font) {
 946                                         column += running_font.latexWriteEndChanges(os, basefont, basefont);
 947                                         open_font = false;
 948                                 }
 949                                 basefont = getLayoutFont(bparams, outerfont);
 950                                 running_font = basefont;
 951                                 os << "}] ";
 952                                 column +=3;
 953                         }
 954                         if (style->isCommand()) {
 955                                 os << '{';
 956                                 ++column;
 957                         }
 958
 959                         if (!asdefault)
 960                                 column += startTeXParParams(bparams, os,
 961                                                             runparams.moving_arg);
 962                 }
 963
 964                 value_type c = getChar(i);
 965
 966                 // Fully instantiated font
 967                 LyXFont font = getFont(bparams, i, outerfont);
 968
 969                 LyXFont const last_font = running_font;
 970
 971                 // Spaces at end of font change are simulated to be
 972                 // outside font change, i.e. we write "\textXX{text} "
 973                 // rather than "\textXX{text }". (Asger)
 974                 if (open_font && c == ' ' && i <= size() - 2) {
 975                         LyXFont const & next_font = getFont(bparams, i + 1, outerfont);
 976                         if (next_font != running_font && next_font != font) {
 977                                 font = next_font;
 978                         }
 979                 }
 980
 981                 // We end font definition before blanks
 982                 if (open_font &&
 983                     (font != running_font ||
 984                      font.language() != running_font.language()))
 985                 {
 986                         column += running_font.latexWriteEndChanges(os,
 987                                                                     basefont,
 988                                                                     (i == body_pos-1) ? basefont : font);
 989                         running_font = basefont;
 990                         open_font = false;
 991                 }
 992
 993                 // Blanks are printed before start of fontswitch
 994                 if (c == ' ') {
 995                         // Do not print the separation of the optional argument
 996                         if (i != body_pos - 1) {
 997                                 pimpl_->simpleTeXBlanks(os, texrow, i,
 998                                                        column, font, *style);
 999                         }
1000                 }
1001
1002                 // Do we need to change font?
1003                 if ((font != running_font ||
1004                      font.language() != running_font.language()) &&
1005                         i != body_pos - 1)
1006                 {
1007                         column += font.latexWriteStartChanges(os, basefont,
1008                                                               last_font);
1009                         running_font = font;
1010                         open_font = true;
1011                 }
1012
1013                 Change::Type change = pimpl_->lookupChange(i);
1014
1015                 column += Changes::latexMarkChange(os, running_change, change);
1016                 running_change = change;
1017
1018                 OutputParams rp = runparams;
1019                 rp.free_spacing = style->free_spacing;
1020                 rp.local_language = font.language()->babel();
1021                 rp.intitle = style->intitle;
1022                 pimpl_->simpleTeXSpecialChars(buf, bparams,
1023                                               os, texrow, rp,
1024                                               font, running_font,
1025                                               basefont, outerfont, open_font,
1026                                               running_change,
1027                                               *style, i, column, c);
1028         }
1029
1030         column += Changes::latexMarkChange(os,
1031                         running_change, Change::UNCHANGED);
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                 char 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 and
1327                             lyx_code != InsetBase::INCLUDE_CODE and
1328                             lyx_code != InsetBase::GRAPHICS_CODE and
1329                             lyx_code != InsetBase::ERT_CODE and
1330                             lyx_code != InsetBase::FLOAT_CODE and
1331                             lyx_code != InsetBase::TABULAR_CODE) {
1332                                 return false;
1333                         }
1334                 } else {
1335                         char c = getChar(i);
1336                         if(c!= ' ' and c!= '\t')
1337                                 return false;
1338                 }
1339
1340         }
1341         return true;
1342 }
1343
1344
1345 string Paragraph::getID(Buffer const & buf, OutputParams const & runparams) const
1346 {
1347         for (pos_type i = 0; i < size(); ++i) {
1348                 if (isInset(i)) {
1349                         InsetBase const * inset = getInset(i);
1350                         InsetBase::Code lyx_code = inset->lyxCode();
1351                         if (lyx_code == InsetBase::LABEL_CODE) {
1352                                 string const id = static_cast<InsetCommand const *>(inset)->getContents();
1353                                 return "id=\"" + sgml::cleanID(buf, runparams, id) + "\"";
1354                         }
1355                 }
1356
1357         }
1358         return string();
1359 }
1360
1361
1362 pos_type Paragraph::getFirstWord(Buffer const & buf, ostream & os, OutputParams const & runparams) const
1363 {
1364         pos_type i;
1365         for (i = 0; i < size(); ++i) {
1366                 if (isInset(i)) {
1367                         InsetBase const * inset = getInset(i);
1368                         inset->docbook(buf, os, runparams);
1369                 } else {
1370                         char c = getChar(i);
1371                         if (c == ' ')
1372                                 break;
1373                         bool ws;
1374                         string str;
1375                         boost::tie(ws, str) = sgml::escapeChar(c);
1376
1377                         os << str;
1378                 }
1379         }
1380         return i;
1381 }
1382
1383
1384 bool Paragraph::onlyText(Buffer const & buf, LyXFont const & outerfont, pos_type initial) const
1385 {
1386         LyXLayout_ptr const & style = layout();
1387         LyXFont font_old;
1388
1389         for (pos_type i = initial; i < size(); ++i) {
1390                 LyXFont font = getFont(buf.params(), i, outerfont);
1391                 if (isInset(i))
1392                         return false;
1393                 if ( i != initial and font != font_old)
1394                         return false;
1395                 font_old = font;
1396         }
1397
1398         return true;
1399 }
1400
1401
1402 void Paragraph::simpleDocBookOnePar(Buffer const & buf,
1403                                     ostream & os,
1404                                     OutputParams const & runparams,
1405                                     LyXFont const & outerfont,
1406                                     pos_type initial) const
1407 {
1408         bool emph_flag = false;
1409
1410         LyXLayout_ptr const & style = layout();
1411         LyXFont font_old =
1412                 style->labeltype == LABEL_MANUAL ? style->labelfont : style->font;
1413
1414         if (style->pass_thru and not onlyText(buf, outerfont, initial))
1415                 os << "]]>";
1416         // parsing main loop
1417         for (pos_type i = initial; i < size(); ++i) {
1418                 LyXFont font = getFont(buf.params(), i, outerfont);
1419
1420                 // handle <emphasis> tag
1421                 if (font_old.emph() != font.emph()) {
1422                         if (font.emph() == LyXFont::ON) {
1423                                 os << "<emphasis>";
1424                                 emph_flag = true;
1425                         } else if (i != initial) {
1426                                 os << "</emphasis>";
1427                                 emph_flag = false;
1428                         }
1429                 }
1430
1431                 if (isInset(i)) {
1432                         InsetBase const * inset = getInset(i);
1433                         inset->docbook(buf, os, runparams);
1434                 } else {
1435                         char c = getChar(i);
1436                         bool ws;
1437                         string str;
1438                         boost::tie(ws, str) = sgml::escapeChar(c);
1439
1440                         if (style->pass_thru)
1441                                 os << c;
1442                         else
1443                                 os << str;
1444                 }
1445                 font_old = font;
1446         }
1447
1448         if (emph_flag) {
1449                 os << "</emphasis>";
1450         }
1451
1452         if (style->free_spacing)
1453                 os << '\n';
1454         if (style->pass_thru and not onlyText(buf, outerfont, initial))
1455                 os << "<![CDATA[";
1456 }
1457
1458
1459 namespace {
1460
1461 /// return true if the char is a meta-character for an inset
1462 inline
1463 bool IsInsetChar(char c)
1464 {
1465         return (c == Paragraph::META_INSET);
1466 }
1467
1468 } // namespace anon
1469
1470
1471
1472 bool Paragraph::isHfill(pos_type pos) const
1473 {
1474         return isInset(pos)
1475                 && getInset(pos)->lyxCode() == InsetBase::HFILL_CODE;
1476 }
1477
1478
1479 bool Paragraph::isNewline(pos_type pos) const
1480 {
1481         return isInset(pos)
1482                 && getInset(pos)->lyxCode() == InsetBase::NEWLINE_CODE;
1483 }
1484
1485
1486 bool Paragraph::isSeparator(pos_type pos) const
1487 {
1488         return IsSeparatorChar(getChar(pos));
1489 }
1490
1491
1492 bool Paragraph::isLineSeparator(pos_type pos) const
1493 {
1494         value_type const c = getChar(pos);
1495         return IsLineSeparatorChar(c)
1496                 || (IsInsetChar(c) && getInset(pos) &&
1497                 getInset(pos)->isLineSeparator());
1498 }
1499
1500
1501 /// Used by the spellchecker
1502 bool Paragraph::isLetter(pos_type pos) const
1503 {
1504         if (isInset(pos))
1505                 return getInset(pos)->isLetter();
1506         else {
1507                 value_type const c = getChar(pos);
1508                 return IsLetterChar(c) || IsDigit(c);
1509         }
1510 }
1511
1512
1513 Language const *
1514 Paragraph::getParLanguage(BufferParams const & bparams) const
1515 {
1516         if (!empty())
1517                 return getFirstFontSettings().language();
1518 #ifdef WITH_WARNINGS
1519 #warning FIXME we should check the prev par as well (Lgb)
1520 #endif
1521         return bparams.language;
1522 }
1523
1524
1525 bool Paragraph::isRightToLeftPar(BufferParams const & bparams) const
1526 {
1527         return lyxrc.rtl_support
1528                 && getParLanguage(bparams)->RightToLeft()
1529                 && ownerCode() != InsetBase::ERT_CODE;
1530 }
1531
1532
1533 void Paragraph::changeLanguage(BufferParams const & bparams,
1534                                Language const * from, Language const * to)
1535 {
1536         for (pos_type i = 0; i < size(); ++i) {
1537                 LyXFont font = getFontSettings(bparams, i);
1538                 if (font.language() == from) {
1539                         font.setLanguage(to);
1540                         setFont(i, font);
1541                 }
1542         }
1543 }
1544
1545
1546 bool Paragraph::isMultiLingual(BufferParams const & bparams) const
1547 {
1548         Language const * doc_language = bparams.language;
1549         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
1550         Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
1551
1552         for (; cit != end; ++cit)
1553                 if (cit->font().language() != ignore_language &&
1554                     cit->font().language() != latex_language &&
1555                     cit->font().language() != doc_language)
1556                         return true;
1557         return false;
1558 }
1559
1560
1561 // Convert the paragraph to a string.
1562 // Used for building the table of contents
1563 string const Paragraph::asString(Buffer const & buffer, bool label) const
1564 {
1565         OutputParams runparams;
1566         return asString(buffer, runparams, label);
1567 }
1568
1569
1570 string const Paragraph::asString(Buffer const & buffer,
1571                                  OutputParams const & runparams,
1572                                  bool label) const
1573 {
1574 #if 0
1575         string s;
1576         if (label && !params().labelString().empty())
1577                 s += params().labelString() + ' ';
1578
1579         for (pos_type i = 0; i < size(); ++i) {
1580                 value_type c = getChar(i);
1581                 if (IsPrintable(c))
1582                         s += c;
1583                 else if (c == META_INSET &&
1584                          getInset(i)->lyxCode() == InsetBase::MATH_CODE) {
1585                         ostringstream os;
1586                         getInset(i)->plaintext(buffer, os, runparams);
1587                         s += subst(STRCONV(os.str()),'\n',' ');
1588                 }
1589         }
1590
1591         return s;
1592 #else
1593         // This should really be done by the caller and not here.
1594         string ret = asString(buffer, runparams, 0, size(), label);
1595         return subst(ret, '\n', ' ');
1596 #endif
1597 }
1598
1599
1600 string const Paragraph::asString(Buffer const & buffer,
1601                                  pos_type beg, pos_type end, bool label) const
1602 {
1603
1604         OutputParams const runparams;
1605         return asString(buffer, runparams, beg, end, label);
1606 }
1607
1608
1609 string const Paragraph::asString(Buffer const & buffer,
1610                                  OutputParams const & runparams,
1611                                  pos_type beg, pos_type end, bool label) const
1612 {
1613         ostringstream os;
1614
1615         if (beg == 0 && label && !params().labelString().empty())
1616                 os << params().labelString() << ' ';
1617
1618         for (pos_type i = beg; i < end; ++i) {
1619                 value_type const c = getUChar(buffer.params(), i);
1620                 if (IsPrintable(c))
1621                         os << c;
1622                 else if (c == META_INSET)
1623                         getInset(i)->plaintext(buffer, os, runparams);
1624         }
1625
1626         return os.str();
1627 }
1628
1629
1630 void Paragraph::setInsetOwner(UpdatableInset * inset)
1631 {
1632         pimpl_->inset_owner = inset;
1633 }
1634
1635
1636 void Paragraph::setContentsFromPar(Paragraph const & par)
1637 {
1638         pimpl_->setContentsFromPar(par);
1639 }
1640
1641
1642 void Paragraph::trackChanges(Change::Type type)
1643 {
1644         pimpl_->trackChanges(type);
1645 }
1646
1647
1648 void Paragraph::untrackChanges()
1649 {
1650         pimpl_->untrackChanges();
1651 }
1652
1653
1654 void Paragraph::cleanChanges()
1655 {
1656         pimpl_->cleanChanges();
1657 }
1658
1659
1660 Change::Type Paragraph::lookupChange(lyx::pos_type pos) const
1661 {
1662         BOOST_ASSERT(empty() || pos < size());
1663         return pimpl_->lookupChange(pos);
1664 }
1665
1666
1667 Change const Paragraph::lookupChangeFull(lyx::pos_type pos) const
1668 {
1669         BOOST_ASSERT(empty() || pos < size());
1670         return pimpl_->lookupChangeFull(pos);
1671 }
1672
1673
1674 bool Paragraph::isChanged(pos_type start, pos_type end) const
1675 {
1676         return pimpl_->isChanged(start, end);
1677 }
1678
1679
1680 bool Paragraph::isChangeEdited(pos_type start, pos_type end) const
1681 {
1682         return pimpl_->isChangeEdited(start, end);
1683 }
1684
1685
1686 void Paragraph::setChange(lyx::pos_type pos, Change::Type type)
1687 {
1688         pimpl_->setChange(pos, type);
1689 }
1690
1691
1692 void Paragraph::markErased()
1693 {
1694         pimpl_->markErased();
1695 }
1696
1697
1698 void Paragraph::acceptChange(pos_type start, pos_type end)
1699 {
1700         return pimpl_->acceptChange(start, end);
1701 }
1702
1703
1704 void Paragraph::rejectChange(pos_type start, pos_type end)
1705 {
1706         return pimpl_->rejectChange(start, end);
1707 }
1708
1709
1710 int Paragraph::id() const
1711 {
1712         return pimpl_->id_;
1713 }
1714
1715
1716 LyXLayout_ptr const & Paragraph::layout() const
1717 {
1718         return layout_;
1719 }
1720
1721
1722 void Paragraph::layout(LyXLayout_ptr const & new_layout)
1723 {
1724         layout_ = new_layout;
1725 }
1726
1727
1728 UpdatableInset * Paragraph::inInset() const
1729 {
1730         return pimpl_->inset_owner;
1731 }
1732
1733
1734 InsetBase::Code Paragraph::ownerCode() const
1735 {
1736         return pimpl_->inset_owner
1737                 ? pimpl_->inset_owner->lyxCode() : InsetBase::NO_CODE;
1738 }
1739
1740
1741 void Paragraph::clearContents()
1742 {
1743         text_.clear();
1744 }
1745
1746
1747 void Paragraph::setChar(pos_type pos, value_type c)
1748 {
1749         text_[pos] = c;
1750 }
1751
1752
1753 ParagraphParameters & Paragraph::params()
1754 {
1755         return pimpl_->params;
1756 }
1757
1758
1759 ParagraphParameters const & Paragraph::params() const
1760 {
1761         return pimpl_->params;
1762 }
1763
1764
1765 bool Paragraph::isFreeSpacing() const
1766 {
1767         if (layout()->free_spacing)
1768                 return true;
1769
1770         // for now we just need this, later should we need this in some
1771         // other way we can always add a function to InsetBase too.
1772         return ownerCode() == InsetBase::ERT_CODE;
1773 }
1774
1775
1776 bool Paragraph::allowEmpty() const
1777 {
1778         if (layout()->keepempty)
1779                 return true;
1780         return ownerCode() == InsetBase::ERT_CODE;
1781 }
1782
1783
1784 Row & Paragraph::getRow(pos_type pos)
1785 {
1786         RowList::iterator rit = rows_.end();
1787         RowList::iterator const begin = rows_.begin();
1788
1789         for (--rit; rit != begin && rit->pos() > pos; --rit)
1790                 ;
1791
1792         return *rit;
1793 }
1794
1795
1796 Row const & Paragraph::getRow(pos_type pos) const
1797 {
1798         RowList::const_iterator rit = rows_.end();
1799         RowList::const_iterator const begin = rows_.begin();
1800
1801         for (--rit; rit != begin && rit->pos() > pos; --rit)
1802                 ;
1803
1804         return *rit;
1805 }
1806
1807
1808 size_t Paragraph::pos2row(pos_type pos) const
1809 {
1810         RowList::const_iterator rit = rows_.end();
1811         RowList::const_iterator const begin = rows_.begin();
1812
1813         for (--rit; rit != begin && rit->pos() > pos; --rit)
1814                 ;
1815
1816         return rit - begin;
1817 }
1818
1819
1820 unsigned char Paragraph::transformChar(unsigned char c, pos_type pos) const
1821 {
1822         if (!Encodings::is_arabic(c))
1823                 if (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 && IsDigit(c))
1824                         return c + (0xb0 - '0');
1825                 else
1826                         return c;
1827
1828         unsigned char const prev_char = pos > 0 ? getChar(pos - 1) : ' ';
1829         unsigned char next_char = ' ';
1830
1831         for (pos_type i = pos + 1, end = size(); i < end; ++i) {
1832                 unsigned char const par_char = getChar(i);
1833                 if (!Encodings::IsComposeChar_arabic(par_char)) {
1834                         next_char = par_char;
1835                         break;
1836                 }
1837         }
1838
1839         if (Encodings::is_arabic(next_char)) {
1840                 if (Encodings::is_arabic(prev_char) &&
1841                         !Encodings::is_arabic_special(prev_char))
1842                         return Encodings::TransformChar(c, Encodings::FORM_MEDIAL);
1843                 else
1844                         return Encodings::TransformChar(c, Encodings::FORM_INITIAL);
1845         } else {
1846                 if (Encodings::is_arabic(prev_char) &&
1847                         !Encodings::is_arabic_special(prev_char))
1848                         return Encodings::TransformChar(c, Encodings::FORM_FINAL);
1849                 else
1850                         return Encodings::TransformChar(c, Encodings::FORM_ISOLATED);
1851         }
1852 }
1853
1854
1855 void Paragraph::dump() const
1856 {
1857         lyxerr << "Paragraph::dump: rows.size(): " << rows_.size() << endl;
1858         for (size_t i = 0; i != rows_.size(); ++i) {
1859                 lyxerr << "  row " << i << ":   ";
1860                 rows_[i].dump();
1861         }
1862 }
1863
1864 //void Paragraph::metrics(MetricsInfo & mi, Dimension & dim, LyXText & text)
1865 //{
1866 //}
1867 //
1868 //
1869 //void draw(PainterInfo & pi, int x, int y, LyXText & text) const
1870 //{
1871 //}
1872