src/paragraph.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include <algorithm>
  18 #include <fstream>
  19 #include <csignal>
  20
  21 #include "paragraph.h"
  22 #include "paragraph_pimpl.h"
  23 #include "support/textutils.h"
  24 #include "lyxrc.h"
  25 #include "layout.h"
  26 #include "language.h"
  27 #include "tex-strings.h"
  28 #include "buffer.h"
  29 #include "bufferparams.h"
  30 #include "support/FileInfo.h"
  31 #include "support/LAssert.h"
  32 #include "debug.h"
  33 #include "LaTeXFeatures.h"
  34 #include "insets/insetinclude.h"
  35 #include "insets/insetbib.h"
  36 #include "insets/insettext.h"
  37 #include "support/filetools.h"
  38 #include "lyx_gui_misc.h"
  39 #include "texrow.h"
  40 #include "support/lyxmanip.h"
  41 #include "BufferView.h"
  42 #include "encoding.h"
  43 #include "ParameterStruct.h"
  44 #include "gettext.h"
  45
  46 using std::ostream;
  47 using std::endl;
  48 using std::fstream;
  49 using std::ios;
  50 using std::lower_bound;
  51 using std::upper_bound;
  52 using std::reverse;
  53
  54 int tex_code_break_column = 72;  // needs non-zero initialization. set later.
  55 // this is a bad idea, but how can Paragraph find its buffer to get
  56 // parameters? (JMarc)
  57
  58 extern string bibitemWidest(Buffer const *);
  59
  60 // this is a minibuffer
  61
  62 namespace {
  63
  64 char minibuffer_char;
  65 LyXFont minibuffer_font;
  66 Inset * minibuffer_inset;
  67
  68 } // namespace anon
  69
  70
  71 extern BufferView * current_view;
  72
  73
  74 Paragraph::Paragraph()
  75                 : pimpl_(new Paragraph::Pimpl(this))
  76 {
  77         for (int i = 0; i < 10; ++i) setCounter(i , 0);
  78         next_ = 0;
  79         previous_ = 0;
  80         enumdepth = 0;
  81         itemdepth = 0;
  82         bibkey = 0; // ale970302
  83         clear();
  84 }
  85
  86
  87 // This konstruktor inserts the new paragraph in a list.
  88 Paragraph::Paragraph(Paragraph * par)
  89                 : pimpl_(new Paragraph::Pimpl(this))
  90 {
  91         for (int i = 0; i < 10; ++i)
  92                 setCounter(i, 0);
  93         enumdepth = 0;
  94         itemdepth = 0;
  95
  96         // double linked list begin
  97         next_ = par->next_;
  98         if (next_)
  99                 next_->previous_ = this;
 100         previous_ = par;
 101         previous_->next_ = this;
 102         // end
 103
 104         bibkey = 0; // ale970302
 105
 106         clear();
 107 }
 108
 109
 110 Paragraph::Paragraph(Paragraph const & lp, bool same_ids)
 111         : pimpl_(new Paragraph::Pimpl(*lp.pimpl_, this, same_ids))
 112 {
 113         for (int i = 0; i < 10; ++i)
 114                 setCounter(i , 0);
 115         enumdepth = 0;
 116         itemdepth = 0;
 117         next_ = 0;
 118         previous_ = 0;
 119
 120         // this is because of the dummy layout of the paragraphs that
 121         // follow footnotes
 122         layout = lp.layout;
 123
 124         // ale970302
 125         if (lp.bibkey) {
 126                 bibkey = static_cast<InsetBibKey *>
 127                         (lp.bibkey->clone(*current_view->buffer()));
 128         } else {
 129                 bibkey = 0;
 130         }
 131
 132         // copy everything behind the break-position to the new paragraph
 133
 134         insetlist = lp.insetlist;
 135         for (InsetList::iterator it = insetlist.begin();
 136              it != insetlist.end(); ++it)
 137         {
 138                 it->inset = it->inset->clone(*current_view->buffer(), same_ids);
 139         }
 140 }
 141
 142
 143 // the destructor removes the new paragraph from the list
 144 Paragraph::~Paragraph()
 145 {
 146         if (previous_)
 147                 previous_->next_ = next_;
 148         if (next_)
 149                 next_->previous_ = previous_;
 150
 151         for (InsetList::iterator it = insetlist.begin();
 152              it != insetlist.end(); ++it) {
 153                 delete it->inset;
 154         }
 155
 156         // ale970302
 157         delete bibkey;
 158
 159         delete pimpl_;
 160         //
 161         //lyxerr << "Paragraph::paragraph_id = "
 162         //       << Paragraph::paragraph_id << endl;
 163 }
 164
 165
 166 void Paragraph::writeFile(Buffer const * buf, ostream & os,
 167                           BufferParams const & bparams,
 168                           depth_type dth) const
 169 {
 170         // The beginning or end of a deeper (i.e. nested) area?
 171         if (dth != params().depth()) {
 172                 if (params().depth() > dth) {
 173                         while (params().depth() > dth) {
 174                                 os << "\n\\begin_deeper ";
 175                                 ++dth;
 176                         }
 177                 } else {
 178                         while (params().depth() < dth) {
 179                                 os << "\n\\end_deeper ";
 180                                 --dth;
 181                         }
 182                 }
 183         }
 184
 185         // First write the layout
 186         os << "\n\\layout "
 187            << textclasslist.NameOfLayout(bparams.textclass, layout)
 188            << "\n";
 189
 190         // Maybe some vertical spaces.
 191         if (params().spaceTop().kind() != VSpace::NONE)
 192                 os << "\\added_space_top "
 193                    << params().spaceTop().asLyXCommand() << " ";
 194         if (params().spaceBottom().kind() != VSpace::NONE)
 195                 os << "\\added_space_bottom "
 196                    << params().spaceBottom().asLyXCommand() << " ";
 197
 198         // Maybe the paragraph has special spacing
 199         params().spacing().writeFile(os, true);
 200
 201         // The labelwidth string used in lists.
 202         if (!params().labelWidthString().empty())
 203                 os << "\\labelwidthstring "
 204                    << params().labelWidthString() << '\n';
 205
 206         // Lines above or below?
 207         if (params().lineTop())
 208                 os << "\\line_top ";
 209         if (params().lineBottom())
 210                 os << "\\line_bottom ";
 211
 212         // Pagebreaks above or below?
 213         if (params().pagebreakTop())
 214                 os << "\\pagebreak_top ";
 215         if (params().pagebreakBottom())
 216                 os << "\\pagebreak_bottom ";
 217
 218         // Start of appendix?
 219         if (params().startOfAppendix())
 220                 os << "\\start_of_appendix ";
 221
 222         // Noindent?
 223         if (params().noindent())
 224                 os << "\\noindent ";
 225
 226         // Alignment?
 227         if (params().align() != LYX_ALIGN_LAYOUT) {
 228                 int h = 0;
 229                 switch (params().align()) {
 230                 case LYX_ALIGN_LEFT: h = 1; break;
 231                 case LYX_ALIGN_RIGHT: h = 2; break;
 232                 case LYX_ALIGN_CENTER: h = 3; break;
 233                 default: h = 0; break;
 234                 }
 235                 os << "\\align " << string_align[h] << " ";
 236         }
 237
 238         // bibitem  ale970302
 239         if (bibkey)
 240                 bibkey->write(buf, os);
 241
 242         LyXFont font1(LyXFont::ALL_INHERIT, bparams.language);
 243
 244         int column = 0;
 245         for (size_type i = 0; i < size(); ++i) {
 246                 if (!i) {
 247                         os << "\n";
 248                         column = 0;
 249                 }
 250
 251                 // Write font changes
 252                 LyXFont font2 = getFontSettings(bparams, i);
 253                 if (font2 != font1) {
 254                         font2.lyxWriteChanges(font1, bparams.language, os);
 255                         column = 0;
 256                         font1 = font2;
 257                 }
 258
 259                 value_type const c = getChar(i);
 260                 switch (c) {
 261                 case META_INSET:
 262                 {
 263                         Inset const * inset = getInset(i);
 264                         if (inset)
 265                                 if (inset->directWrite()) {
 266                                         // international char, let it write
 267                                         // code directly so it's shorter in
 268                                         // the file
 269                                         inset->write(buf, os);
 270                                 } else {
 271                                         os << "\n\\begin_inset ";
 272                                         inset->write(buf, os);
 273                                         os << "\n\\end_inset \n\n";
 274                                         column = 0;
 275                                 }
 276                 }
 277                 break;
 278                 case META_NEWLINE:
 279                         os << "\n\\newline \n";
 280                         column = 0;
 281                         break;
 282                 case META_HFILL:
 283                         os << "\n\\hfill \n";
 284                         column = 0;
 285                         break;
 286                 case '\\':
 287                         os << "\n\\backslash \n";
 288                         column = 0;
 289                         break;
 290                 case '.':
 291                         if (i + 1 < size() && getChar(i + 1) == ' ') {
 292                                 os << ".\n";
 293                                 column = 0;
 294                         } else
 295                                 os << ".";
 296                         break;
 297                 default:
 298                         if ((column > 70 && c == ' ')
 299                             || column > 79) {
 300                                 os << "\n";
 301                                 column = 0;
 302                         }
 303                         // this check is to amend a bug. LyX sometimes
 304                         // inserts '\0' this could cause problems.
 305                         if (c != '\0')
 306                                 os << c;
 307                         else
 308                                 lyxerr << "ERROR (Paragraph::writeFile):"
 309                                         " NULL char in structure." << endl;
 310                         ++column;
 311                         break;
 312                 }
 313         }
 314
 315         // now write the next paragraph
 316         if (next_)
 317                 next_->writeFile(buf, os, bparams, dth);
 318 }
 319
 320
 321 void Paragraph::validate(LaTeXFeatures & features) const
 322 {
 323         BufferParams const & bparams = features.bufferParams();
 324
 325         // check the params.
 326         if (params().lineTop() || params().lineBottom())
 327                 features.lyxline = true;
 328         if (!params().spacing().isDefault())
 329                 features.setspace = true;
 330
 331         // then the layouts
 332         features.layout[getLayout()] = true;
 333
 334         // then the fonts
 335         Language const * doc_language = bparams.language;
 336
 337         for (Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 338              cit != pimpl_->fontlist.end(); ++cit) {
 339                 if (cit->font().noun() == LyXFont::ON) {
 340                         lyxerr[Debug::LATEX] << "font.noun: "
 341                                              << cit->font().noun()
 342                                              << endl;
 343                         features.noun = true;
 344                         lyxerr[Debug::LATEX] << "Noun enabled. Font: "
 345                                              << cit->font().stateText(0)
 346                                              << endl;
 347                 }
 348                 switch (cit->font().color()) {
 349                 case LColor::none:
 350                 case LColor::inherit:
 351                 case LColor::ignore:
 352                         // probably we should put here all interface colors used for
 353                         // font displaying! For now I just add this ones I know of (Jug)
 354                 case LColor::latex:
 355                 case LColor::note:
 356                         break;
 357                 default:
 358                         features.color = true;
 359                         lyxerr[Debug::LATEX] << "Color enabled. Font: "
 360                                              << cit->font().stateText(0)
 361                                              << endl;
 362                 }
 363
 364                 Language const * language = cit->font().language();
 365                 if (language != ignore_language &&
 366                         language != inherit_language &&
 367                         language->babel() != doc_language->babel())
 368                 {
 369                         features.UsedLanguages.insert(language);
 370                         lyxerr[Debug::LATEX] << "Found language "
 371                                              << language->babel() << endl;
 372                 }
 373         }
 374
 375         // then the insets
 376         for (InsetList::const_iterator cit = insetlist.begin();
 377              cit != insetlist.end(); ++cit) {
 378                 if (cit->inset)
 379                         cit->inset->validate(features);
 380         }
 381 }
 382
 383
 384 // First few functions needed for cut and paste and paragraph breaking.
 385 void Paragraph::copyIntoMinibuffer(Buffer const & buffer,
 386                                       Paragraph::size_type pos) const
 387 {
 388         BufferParams bparams = buffer.params;
 389
 390         minibuffer_char = getChar(pos);
 391         minibuffer_font = getFontSettings(bparams, pos);
 392         minibuffer_inset = 0;
 393         if (minibuffer_char == Paragraph::META_INSET) {
 394                 if (getInset(pos)) {
 395                         minibuffer_inset = getInset(pos)->clone(buffer);
 396                 } else {
 397                         minibuffer_inset = 0;
 398                         minibuffer_char = ' ';
 399                         // This reflects what GetInset() does (ARRae)
 400                 }
 401         }
 402 }
 403
 404
 405 void Paragraph::cutIntoMinibuffer(BufferParams const & bparams,
 406                                      Paragraph::size_type pos)
 407 {
 408         minibuffer_char = getChar(pos);
 409         minibuffer_font = getFontSettings(bparams, pos);
 410         minibuffer_inset = 0;
 411         if (minibuffer_char == Paragraph::META_INSET) {
 412                 if (getInset(pos)) {
 413                         minibuffer_inset = getInset(pos);
 414                         // This is a little hack since I want exactly
 415                         // the inset, not just a clone. Otherwise
 416                         // the inset would be deleted when calling Erase(pos)
 417                         // find the entry
 418                         InsetTable search_elem(pos, 0);
 419                         InsetList::iterator it =
 420                                 lower_bound(insetlist.begin(),
 421                                             insetlist.end(),
 422                                             search_elem, Pimpl::matchIT());
 423                         if (it != insetlist.end() && it->pos == pos)
 424                                 it->inset = 0;
 425                 } else {
 426                         minibuffer_inset = 0;
 427                         minibuffer_char = ' ';
 428                         // This reflects what GetInset() does (ARRae)
 429                 }
 430
 431         }
 432
 433         // Erase(pos); now the caller is responsible for that.
 434 }
 435
 436
 437 bool Paragraph::insertFromMinibuffer(Paragraph::size_type pos)
 438 {
 439         if ((minibuffer_char == Paragraph::META_INSET) &&
 440             !insetAllowed(minibuffer_inset->lyxCode()))
 441                 return false;
 442         if (minibuffer_char == Paragraph::META_INSET)
 443                 insertInset(pos, minibuffer_inset, minibuffer_font);
 444         else {
 445                 LyXFont f = minibuffer_font;
 446                 if (checkInsertChar(f))
 447                         insertChar(pos, minibuffer_char, f);
 448         }
 449         return true;
 450 }
 451
 452 // end of minibuffer
 453
 454
 455
 456 void Paragraph::clear()
 457 {
 458         params().clear();
 459
 460         layout = 0;
 461         bibkey = 0;
 462 }
 463
 464
 465 void Paragraph::erase(Paragraph::size_type pos)
 466 {
 467         pimpl_->erase(pos);
 468 }
 469
 470
 471 bool Paragraph::checkInsertChar(LyXFont & font)
 472 {
 473         if (pimpl_->inset_owner)
 474                 return pimpl_->inset_owner->checkInsertChar(font);
 475         return true;
 476 }
 477
 478
 479 void Paragraph::insertChar(Paragraph::size_type pos,
 480                               Paragraph::value_type c)
 481 {
 482         LyXFont const f(LyXFont::ALL_INHERIT);
 483         insertChar(pos, c, f);
 484 }
 485
 486
 487 void Paragraph::insertChar(Paragraph::size_type pos,
 488                               Paragraph::value_type c,
 489                               LyXFont const & font)
 490 {
 491         pimpl_->insertChar(pos, c, font);
 492 }
 493
 494
 495 void Paragraph::insertInset(Paragraph::size_type pos,
 496                                Inset * inset)
 497 {
 498         LyXFont const f(LyXFont::ALL_INHERIT);
 499         insertInset(pos, inset, f);
 500 }
 501
 502
 503 void Paragraph::insertInset(Paragraph::size_type pos,
 504                                Inset * inset, LyXFont const & font)
 505 {
 506         pimpl_->insertInset(pos, inset, font);
 507 }
 508
 509
 510 bool Paragraph::insetAllowed(Inset::Code code)
 511 {
 512         //lyxerr << "Paragraph::InsertInsetAllowed" << endl;
 513
 514         if (pimpl_->inset_owner)
 515                 return pimpl_->inset_owner->insetAllowed(code);
 516         return true;
 517 }
 518
 519
 520 Inset * Paragraph::getInset(Paragraph::size_type pos)
 521 {
 522         lyx::Assert(pos < size());
 523
 524         // Find the inset.
 525         InsetTable search_inset(pos, 0);
 526         InsetList::iterator it = lower_bound(insetlist.begin(),
 527                                              insetlist.end(),
 528                                              search_inset, Pimpl::matchIT());
 529         if (it != insetlist.end() && it->pos == pos)
 530                 return it->inset;
 531
 532         lyxerr << "ERROR (Paragraph::GetInset): "
 533                 "Inset does not exist: " << pos << endl;
 534         //::raise(SIGSTOP);
 535
 536         // text[pos] = ' '; // WHY!!! does this set the pos to ' '????
 537         // Did this commenting out introduce a bug? So far I have not
 538         // see any, please enlighten me. (Lgb)
 539         // My guess is that since the inset does not exist, we might
 540         // as well replace it with a space to prevent craches. (Asger)
 541         return 0;
 542 }
 543
 544
 545 Inset const * Paragraph::getInset(Paragraph::size_type pos) const
 546 {
 547         lyx::Assert(pos < size());
 548
 549         // Find the inset.
 550         InsetTable search_inset(pos, 0);
 551         InsetList::const_iterator cit = lower_bound(insetlist.begin(),
 552                                                     insetlist.end(),
 553                                                     search_inset, Pimpl::matchIT());
 554         if (cit != insetlist.end() && cit->pos == pos)
 555                 return cit->inset;
 556
 557         lyxerr << "ERROR (Paragraph::GetInset): "
 558                 "Inset does not exist: " << pos << endl;
 559         //::raise(SIGSTOP);
 560         //text[pos] = ' '; // WHY!!! does this set the pos to ' '????
 561         // Did this commenting out introduce a bug? So far I have not
 562         // see any, please enlighten me. (Lgb)
 563         // My guess is that since the inset does not exist, we might
 564         // as well replace it with a space to prevent craches. (Asger)
 565         return 0;
 566 }
 567
 568
 569 // Gets uninstantiated font setting at position.
 570 LyXFont const Paragraph::getFontSettings(BufferParams const & bparams,
 571                                          Paragraph::size_type pos) const
 572 {
 573         lyx::Assert(pos <= size());
 574
 575         Pimpl::FontTable search_font(pos, LyXFont());
 576         Pimpl::FontList::const_iterator cit = lower_bound(pimpl_->fontlist.begin(),
 577                                                    pimpl_->fontlist.end(),
 578                                                    search_font, Pimpl::matchFT());
 579         LyXFont retfont;
 580         if (cit != pimpl_->fontlist.end()) {
 581                 retfont = cit->font();
 582         } else if (pos == size() && size()) {
 583                 retfont = getFontSettings(bparams, pos - 1);
 584         } else
 585                 retfont = LyXFont(LyXFont::ALL_INHERIT, getParLanguage(bparams));
 586         if (retfont.language() == inherit_language)
 587                 retfont.setLanguage(bparams.language);
 588
 589         return retfont;
 590 }
 591
 592
 593 // Gets uninstantiated font setting at position 0
 594 LyXFont const Paragraph::getFirstFontSettings() const
 595 {
 596         if (size() > 0) {
 597                 if (!pimpl_->fontlist.empty())
 598                         return pimpl_->fontlist[0].font();
 599         }
 600
 601         return LyXFont(LyXFont::ALL_INHERIT);
 602 }
 603
 604
 605 // Gets the fully instantiated font at a given position in a paragraph
 606 // This is basically the same function as LyXText::GetFont() in text2.C.
 607 // The difference is that this one is used for generating the LaTeX file,
 608 // and thus cosmetic "improvements" are disallowed: This has to deliver
 609 // the true picture of the buffer. (Asger)
 610 // If position is -1, we get the layout font of the paragraph.
 611 // If position is -2, we get the font of the manual label of the paragraph.
 612 LyXFont const Paragraph::getFont(BufferParams const & bparams,
 613                               Paragraph::size_type pos) const
 614 {
 615         LyXFont tmpfont;
 616         LyXLayout const & layout =
 617                 textclasslist.Style(bparams.textclass,
 618                                     getLayout());
 619         Paragraph::size_type main_body = 0;
 620         if (layout.labeltype == LABEL_MANUAL)
 621                 main_body = beginningOfMainBody();
 622
 623         if (pos >= 0) {
 624                 LyXFont layoutfont;
 625                 if (pos < main_body)
 626                         layoutfont = layout.labelfont;
 627                 else
 628                         layoutfont = layout.font;
 629                 tmpfont = getFontSettings(bparams, pos);
 630                 tmpfont.realize(layoutfont, bparams.language);
 631         } else {
 632                 // process layoutfont for pos == -1 and labelfont for pos < -1
 633                 if (pos == -1)
 634                         tmpfont = layout.font;
 635                 else
 636                         tmpfont = layout.labelfont;
 637                 tmpfont.setLanguage(getParLanguage(bparams));
 638         }
 639
 640         // check for environment font information
 641         char par_depth = getDepth();
 642         Paragraph const * par = this;
 643         while (par && par->getDepth() && !tmpfont.resolved()) {
 644                 par = par->outerHook();
 645                 if (par) {
 646                         tmpfont.realize(textclasslist.
 647                                         Style(bparams.textclass,
 648                                               par->getLayout()).font, bparams.language);
 649                         par_depth = par->getDepth();
 650                 }
 651         }
 652
 653         tmpfont.realize(textclasslist
 654                         .TextClass(bparams.textclass)
 655                         .defaultfont(), bparams.language);
 656         return tmpfont;
 657 }
 658
 659
 660 /// Returns the height of the highest font in range
 661 LyXFont::FONT_SIZE
 662 Paragraph::highestFontInRange(Paragraph::size_type startpos,
 663                                  Paragraph::size_type endpos) const
 664 {
 665         LyXFont::FONT_SIZE maxsize = LyXFont::SIZE_TINY;
 666         if (pimpl_->fontlist.empty())
 667                 return maxsize;
 668
 669         Pimpl::FontTable end_search(endpos, LyXFont());
 670         Pimpl::FontList::const_iterator end_it = lower_bound(pimpl_->fontlist.begin(),
 671                                                       pimpl_->fontlist.end(),
 672                                                       end_search, Pimpl::matchFT());
 673         if (end_it != pimpl_->fontlist.end())
 674                 ++end_it;
 675
 676         Pimpl::FontTable start_search(startpos, LyXFont());
 677         for (Pimpl::FontList::const_iterator cit =
 678                      lower_bound(pimpl_->fontlist.begin(),
 679                                  pimpl_->fontlist.end(),
 680                                  start_search, Pimpl::matchFT());
 681              cit != end_it; ++cit) {
 682                 LyXFont::FONT_SIZE size = cit->font().size();
 683                 if (size > maxsize && size <= LyXFont::SIZE_HUGER)
 684                         maxsize = size;
 685         }
 686         return maxsize;
 687 }
 688
 689
 690 Paragraph::value_type
 691 Paragraph::getUChar(BufferParams const & bparams,
 692                        Paragraph::size_type pos) const
 693 {
 694         value_type c = getChar(pos);
 695         if (!lyxrc.rtl_support)
 696                 return c;
 697
 698         value_type uc = c;
 699         switch (c) {
 700         case '(':
 701                 uc = ')';
 702                 break;
 703         case ')':
 704                 uc = '(';
 705                 break;
 706         case '[':
 707                 uc = ']';
 708                 break;
 709         case ']':
 710                 uc = '[';
 711                 break;
 712         case '{':
 713                 uc = '}';
 714                 break;
 715         case '}':
 716                 uc = '{';
 717                 break;
 718         case '<':
 719                 uc = '>';
 720                 break;
 721         case '>':
 722                 uc = '<';
 723                 break;
 724         }
 725         if (uc != c && getFontSettings(bparams, pos).isRightToLeft())
 726                 return uc;
 727         else
 728                 return c;
 729 }
 730
 731
 732 void Paragraph::setFont(Paragraph::size_type pos,
 733                            LyXFont const & font)
 734 {
 735         lyx::Assert(pos <= size());
 736
 737         // First, reduce font against layout/label font
 738         // Update: The SetCharFont() routine in text2.C already
 739         // reduces font, so we don't need to do that here. (Asger)
 740         // No need to simplify this because it will disappear
 741         // in a new kernel. (Asger)
 742         // Next search font table
 743
 744         Pimpl::FontTable search_font(pos, LyXFont());
 745         Pimpl::FontList::iterator it = lower_bound(pimpl_->fontlist.begin(),
 746                                             pimpl_->fontlist.end(),
 747                                             search_font, Pimpl::matchFT());
 748         unsigned int i = it - pimpl_->fontlist.begin();
 749         bool notfound = it == pimpl_->fontlist.end();
 750
 751         if (!notfound && pimpl_->fontlist[i].font() == font)
 752                 return;
 753
 754         bool begin = pos == 0 || notfound ||
 755                 (i > 0 && pimpl_->fontlist[i-1].pos() == pos - 1);
 756         // Is position pos is a beginning of a font block?
 757         bool end = !notfound && pimpl_->fontlist[i].pos() == pos;
 758         // Is position pos is the end of a font block?
 759         if (begin && end) { // A single char block
 760                 if (i + 1 < pimpl_->fontlist.size() &&
 761                     pimpl_->fontlist[i + 1].font() == font) {
 762                         // Merge the singleton block with the next block
 763                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 764                         if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 765                                 pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i-1);
 766                 } else if (i > 0 && pimpl_->fontlist[i - 1].font() == font) {
 767                         // Merge the singleton block with the previous block
 768                         pimpl_->fontlist[i - 1].pos(pos);
 769                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 770                 } else
 771                         pimpl_->fontlist[i].font(font);
 772         } else if (begin) {
 773                 if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 774                         pimpl_->fontlist[i - 1].pos(pos);
 775                 else
 776                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 777                                         Pimpl::FontTable(pos, font));
 778         } else if (end) {
 779                 pimpl_->fontlist[i].pos(pos - 1);
 780                 if (!(i + 1 < pimpl_->fontlist.size() &&
 781                       pimpl_->fontlist[i + 1].font() == font))
 782                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 783                                         Pimpl::FontTable(pos, font));
 784         } else { // The general case. The block is splitted into 3 blocks
 785                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 786                                 Pimpl::FontTable(pos - 1, pimpl_->fontlist[i].font()));
 787                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 788                                 Pimpl::FontTable(pos, font));
 789         }
 790 }
 791
 792
 793
 794 void Paragraph::next(Paragraph * p)
 795 {
 796         next_ = p;
 797 }
 798
 799
 800 // This function is able to hide closed footnotes.
 801 Paragraph * Paragraph::next()
 802 {
 803         return next_;
 804 }
 805
 806
 807 Paragraph const * Paragraph::next() const
 808 {
 809         return next_;
 810 }
 811
 812
 813 void Paragraph::previous(Paragraph * p)
 814 {
 815         previous_ = p;
 816 }
 817
 818
 819 // This function is able to hide closed footnotes.
 820 Paragraph * Paragraph::previous()
 821 {
 822         return previous_;
 823 }
 824
 825
 826 // This function is able to hide closed footnotes.
 827 Paragraph const * Paragraph::previous() const
 828 {
 829         return previous_;
 830 }
 831
 832
 833 void Paragraph::breakParagraph(BufferParams const & bparams,
 834                                   Paragraph::size_type pos,
 835                                   int flag)
 836 {
 837         // create a new paragraph
 838         Paragraph * tmp = new Paragraph(this);
 839         // remember to set the inset_owner
 840         tmp->setInsetOwner(inInset());
 841
 842         // this is an idea for a more userfriendly layout handling, I will
 843         // see what the users say
 844
 845         // layout stays the same with latex-environments
 846         if (flag) {
 847                 tmp->setOnlyLayout(layout);
 848                 tmp->setLabelWidthString(params().labelWidthString());
 849         }
 850
 851         if (size() > pos || !size() || flag == 2) {
 852                 tmp->setOnlyLayout(layout);
 853                 tmp->params().align(params().align());
 854                 tmp->setLabelWidthString(params().labelWidthString());
 855
 856                 tmp->params().lineBottom(params().lineBottom());
 857                 params().lineBottom(false);
 858                 tmp->params().pagebreakBottom(params().pagebreakBottom());
 859                 params().pagebreakBottom(false);
 860                 tmp->params().spaceBottom(params().spaceBottom());
 861                 params().spaceBottom(VSpace(VSpace::NONE));
 862
 863                 tmp->params().depth(params().depth());
 864                 tmp->params().noindent(params().noindent());
 865
 866                 // copy everything behind the break-position
 867                 // to the new paragraph
 868                 size_type pos_end = pimpl_->size() - 1;
 869                 size_type i = pos;
 870                 size_type j = pos;
 871                 for (; i <= pos_end; ++i) {
 872                         cutIntoMinibuffer(bparams, i);
 873                         if (tmp->insertFromMinibuffer(j - pos))
 874                                 ++j;
 875                 }
 876                 for (i = pos_end; i >= pos; --i) {
 877                         erase(i);
 878                 }
 879         }
 880
 881         // just an idea of me
 882         if (!pos) {
 883                 tmp->params().lineTop(params().lineTop());
 884                 tmp->params().pagebreakTop(params().pagebreakTop());
 885                 tmp->params().spaceTop(params().spaceTop());
 886                 tmp->bibkey = bibkey;
 887                 clear();
 888                 // layout stays the same with latex-environments
 889                 if (flag) {
 890                         setOnlyLayout(tmp->layout);
 891                         setLabelWidthString(tmp->params().labelWidthString());
 892                         params().depth(tmp->params().depth());
 893                 }
 894         }
 895 }
 896
 897
 898 void Paragraph::makeSameLayout(Paragraph const * par)
 899 {
 900         layout = par->layout;
 901         // move to pimpl?
 902         params() = par->params();
 903 }
 904
 905
 906 int Paragraph::stripLeadingSpaces(LyXTextClassList::size_type tclass)
 907 {
 908         if (textclasslist.Style(tclass, getLayout()).free_spacing)
 909                 return 0;
 910
 911         int i = 0;
 912         while (size()
 913                && (isNewline(0) || isLineSeparator(0))){
 914                 erase(0);
 915                 ++i;
 916         }
 917
 918         return i;
 919 }
 920
 921
 922 bool Paragraph::hasSameLayout(Paragraph const * par) const
 923 {
 924         return
 925                 par->layout == layout &&
 926                 params().sameLayout(par->params());
 927 }
 928
 929
 930 void Paragraph::breakParagraphConservative(BufferParams const & bparams,
 931                                            Paragraph::size_type pos)
 932 {
 933         // create a new paragraph
 934         Paragraph * tmp = new Paragraph(this);
 935         tmp->makeSameLayout(this);
 936
 937         // When can pos > Last()?
 938         // I guess pos == Last() is possible.
 939         if (size() > pos) {
 940                 // copy everything behind the break-position to the new
 941                 // paragraph
 942                 size_type pos_end = pimpl_->size() - 1;
 943
 944                 //size_type i = pos;
 945                 //size_type j = pos;
 946                 for (size_type i = pos, j = pos; i <= pos_end; ++i) {
 947                         cutIntoMinibuffer(bparams, i);
 948                         if (tmp->insertFromMinibuffer(j - pos))
 949                                 ++j;
 950                 }
 951
 952                 for (size_type k = pos_end; k >= pos; --k) {
 953                         erase(k);
 954                 }
 955         }
 956 }
 957
 958
 959 // Be carefull, this does not make any check at all.
 960 // This method has wrong name, it combined this par with the next par.
 961 // In that sense it is the reverse of break paragraph. (Lgb)
 962 void Paragraph::pasteParagraph(BufferParams const & bparams)
 963 {
 964         // copy the next paragraph to this one
 965         Paragraph * the_next = next();
 966
 967         // first the DTP-stuff
 968         params().lineBottom(the_next->params().lineBottom());
 969         params().spaceBottom(the_next->params().spaceBottom());
 970         params().pagebreakBottom(the_next->params().pagebreakBottom());
 971
 972         size_type pos_end = the_next->pimpl_->size() - 1;
 973         size_type pos_insert = size();
 974
 975         // ok, now copy the paragraph
 976         for (size_type i = 0, j = 0; i <= pos_end; ++i) {
 977                 the_next->cutIntoMinibuffer(bparams, i);
 978                 if (insertFromMinibuffer(pos_insert + j))
 979                         ++j;
 980         }
 981
 982         // delete the next paragraph
 983         Paragraph * ppar = the_next->previous_;
 984         Paragraph * npar = the_next->next_;
 985         delete the_next;
 986         ppar->next(npar);
 987 }
 988
 989
 990 int Paragraph::getEndLabel(BufferParams const & bparams) const
 991 {
 992         Paragraph const * par = this;
 993         depth_type par_depth = getDepth();
 994         while (par) {
 995                 LyXTextClass::LayoutList::size_type layout = par->getLayout();
 996                 int const endlabeltype =
 997                         textclasslist.Style(bparams.textclass,
 998                                             layout).endlabeltype;
 999                 if (endlabeltype != END_LABEL_NO_LABEL) {
1000                         if (!next_)
1001                                 return endlabeltype;
1002
1003                         depth_type const next_depth = next_->getDepth();
1004                         if (par_depth > next_depth ||
1005                             (par_depth == next_depth
1006                              && layout != next_->getLayout()))
1007                                 return endlabeltype;
1008                         break;
1009                 }
1010                 if (par_depth == 0)
1011                         break;
1012                 par = par->outerHook();
1013                 if (par)
1014                         par_depth = par->getDepth();
1015         }
1016         return END_LABEL_NO_LABEL;
1017 }
1018
1019
1020 Paragraph::depth_type Paragraph::getDepth() const
1021 {
1022         return params().depth();
1023 }
1024
1025
1026 char Paragraph::getAlign() const
1027 {
1028         return params().align();
1029 }
1030
1031
1032 string const & Paragraph::getLabelstring() const
1033 {
1034         return params().labelString();
1035 }
1036
1037
1038 int Paragraph::getFirstCounter(int i) const
1039 {
1040         return pimpl_->counter_[i];
1041 }
1042
1043
1044 // the next two functions are for the manual labels
1045 string const Paragraph::getLabelWidthString() const
1046 {
1047         if (!params().labelWidthString().empty())
1048                 return params().labelWidthString();
1049         else
1050                 return _("Senseless with this layout!");
1051 }
1052
1053
1054 void Paragraph::setLabelWidthString(string const & s)
1055 {
1056         params().labelWidthString(s);
1057 }
1058
1059
1060 void Paragraph::setOnlyLayout(LyXTextClass::size_type new_layout)
1061 {
1062         layout = new_layout;
1063 }
1064
1065
1066 void Paragraph::setLayout(LyXTextClass::size_type new_layout)
1067 {
1068         layout = new_layout;
1069         params().labelWidthString(string());
1070         params().align(LYX_ALIGN_LAYOUT);
1071         params().spaceTop(VSpace(VSpace::NONE));
1072         params().spaceBottom(VSpace(VSpace::NONE));
1073         params().spacing(Spacing(Spacing::Default));
1074 }
1075
1076
1077 // if the layout of a paragraph contains a manual label, the beginning of the
1078 // main body is the beginning of the second word. This is what the par-
1079 // function returns. If the layout does not contain a label, the main
1080 // body always starts with position 0. This differentiation is necessary,
1081 // because there cannot be a newline or a blank <= the beginning of the
1082 // main body in TeX.
1083
1084 int Paragraph::beginningOfMainBody() const
1085 {
1086         // Unroll the first two cycles of the loop
1087         // and remember the previous character to
1088         // remove unnecessary GetChar() calls
1089         size_type i = 0;
1090         if (i < size()
1091             && getChar(i) != Paragraph::META_NEWLINE) {
1092                 ++i;
1093                 char previous_char = 0;
1094                 char temp = 0;
1095                 if (i < size()
1096                     && (previous_char = getChar(i)) != Paragraph::META_NEWLINE) {
1097                         // Yes, this  ^ is supposed to be "= " not "=="
1098                         ++i;
1099                         while (i < size()
1100                                && previous_char != ' '
1101                                && (temp = getChar(i)) != Paragraph::META_NEWLINE) {
1102                                 ++i;
1103                                 previous_char = temp;
1104                         }
1105                 }
1106         }
1107
1108         return i;
1109 }
1110
1111
1112 Paragraph * Paragraph::depthHook(depth_type depth)
1113 {
1114         Paragraph * newpar = this;
1115
1116         do {
1117                 newpar = newpar->previous();
1118         } while (newpar && newpar->getDepth() > depth);
1119
1120         if (!newpar) {
1121                 if (previous() || getDepth())
1122                         lyxerr << "ERROR (Paragraph::DepthHook): "
1123                                 "no hook." << endl;
1124                 newpar = this;
1125         }
1126
1127         return newpar;
1128 }
1129
1130
1131 Paragraph const * Paragraph::depthHook(depth_type depth) const
1132 {
1133         Paragraph const * newpar = this;
1134
1135         do {
1136                 newpar = newpar->previous();
1137         } while (newpar && newpar->getDepth() > depth);
1138
1139         if (!newpar) {
1140                 if (previous() || getDepth())
1141                         lyxerr << "ERROR (Paragraph::DepthHook): "
1142                                 "no hook." << endl;
1143                 newpar = this;
1144         }
1145
1146         return newpar;
1147 }
1148
1149 Paragraph * Paragraph::outerHook()
1150 {
1151         if(!getDepth())
1152                 return 0;
1153         return depthHook(depth_type(getDepth() - 1));
1154 }
1155
1156 Paragraph const * Paragraph::outerHook() const
1157 {
1158         if(!getDepth())
1159                 return 0;
1160         return depthHook(depth_type(getDepth() - 1));
1161 }
1162
1163 int Paragraph::autoDeleteInsets()
1164 {
1165         int count = 0;
1166         InsetList::size_type index = 0;
1167         while (index < insetlist.size()) {
1168                 if (insetlist[index].inset && insetlist[index].inset->autoDelete()) {
1169                         erase(insetlist[index].pos);
1170                         // Erase() calls to insetlist.erase(&insetlist[index])
1171                         // so index shouldn't be increased.
1172                         ++count;
1173                 } else
1174                         ++index;
1175         }
1176         return count;
1177 }
1178
1179
1180 Paragraph::inset_iterator
1181 Paragraph::InsetIterator(Paragraph::size_type pos)
1182 {
1183         InsetTable search_inset(pos, 0);
1184         InsetList::iterator it = lower_bound(insetlist.begin(),
1185                                              insetlist.end(),
1186                                              search_inset, Pimpl::matchIT());
1187         return inset_iterator(it);
1188 }
1189
1190
1191 // returns -1 if inset not found
1192 int Paragraph::getPositionOfInset(Inset * inset) const
1193 {
1194         // Find the entry.
1195         for (InsetList::const_iterator cit = insetlist.begin();
1196              cit != insetlist.end(); ++cit) {
1197                 if (cit->inset == inset) {
1198                         return cit->pos;
1199                 }
1200         }
1201         if (inset == bibkey)
1202                 return 0;
1203
1204         return -1;
1205 }
1206
1207
1208 Paragraph * Paragraph::TeXOnePar(Buffer const * buf,
1209                                        BufferParams const & bparams,
1210                                        ostream & os, TexRow & texrow,
1211                                        bool moving_arg)
1212 {
1213         lyxerr[Debug::LATEX] << "TeXOnePar...     " << this << endl;
1214         LyXLayout const & style =
1215                 textclasslist.Style(bparams.textclass,
1216                                     layout);
1217
1218         bool further_blank_line = false;
1219
1220         if (params().startOfAppendix()) {
1221                 os << "\\appendix\n";
1222                 texrow.newline();
1223         }
1224
1225         if (!params().spacing().isDefault()
1226             && (!previous() || !previous()->hasSameLayout(this))) {
1227                 os << params().spacing().writeEnvirBegin() << "\n";
1228                 texrow.newline();
1229         }
1230
1231         if (tex_code_break_column && style.isCommand()){
1232                 os << '\n';
1233                 texrow.newline();
1234         }
1235
1236         if (params().pagebreakTop()) {
1237                 os << "\\newpage";
1238                 further_blank_line = true;
1239         }
1240         if (params().spaceTop().kind() != VSpace::NONE) {
1241                 os << params().spaceTop().asLatexCommand(bparams);
1242                 further_blank_line = true;
1243         }
1244
1245         if (params().lineTop()) {
1246                 os << "\\lyxline{\\" << getFont(bparams, 0).latexSize() << '}'
1247                    << "\\vspace{-1\\parskip}";
1248                 further_blank_line = true;
1249         }
1250
1251         if (further_blank_line){
1252                 os << '\n';
1253                 texrow.newline();
1254         }
1255
1256         Language const * language = getParLanguage(bparams);
1257         Language const * doc_language = bparams.language;
1258         Language const * previous_language = previous_
1259                 ? previous_->getParLanguage(bparams) : doc_language;
1260         if (language == ignore_language || language == inherit_language)
1261                 lyxerr << "1:" << language->lang() << endl;
1262         if (language->babel() != doc_language->babel() &&
1263             language->babel() != previous_language->babel()) {
1264                 os << subst(lyxrc.language_command_begin, "$$lang",
1265                             language->babel())
1266                    << endl;
1267                 texrow.newline();
1268         }
1269
1270         if (bparams.inputenc == "auto" &&
1271             language->encoding() != previous_language->encoding())
1272         {
1273                 os << "\\inputencoding{"
1274                    << language->encoding()->LatexName()
1275                    << "}" << endl;
1276                 texrow.newline();
1277         }
1278
1279         switch (style.latextype) {
1280         case LATEX_COMMAND:
1281                 os << '\\'
1282                    << style.latexname()
1283                    << style.latexparam();
1284                 break;
1285         case LATEX_ITEM_ENVIRONMENT:
1286                 if (bibkey) {
1287                         bibkey->latex(buf, os, false, false);
1288                 } else
1289                         os << "\\item ";
1290                 break;
1291         case LATEX_LIST_ENVIRONMENT:
1292                 os << "\\item ";
1293                 break;
1294         default:
1295                 break;
1296         }
1297
1298         bool need_par = simpleTeXOnePar(buf, bparams, os, texrow, moving_arg);
1299
1300         // Make sure that \\par is done with the font of the last
1301         // character if this has another size as the default.
1302         // This is necessary because LaTeX (and LyX on the screen)
1303         // calculates the space between the baselines according
1304         // to this font. (Matthias)
1305         //
1306         // Is this really needed ? (Dekel)
1307         // We do not need to use to change the font for the last paragraph
1308         // or for a command.
1309         LyXFont font = getFont(bparams, size() - 1);
1310
1311         bool is_command = textclasslist.Style(bparams.textclass,
1312                                               getLayout()).isCommand();
1313         if (style.resfont.size() != font.size() && next_ && !is_command) {
1314                 if (!need_par)
1315                         os << "{";
1316                 os << "\\" << font.latexSize() << " \\par}";
1317         } else if (need_par) {
1318                 os << "\\par}";
1319         } else if (is_command)
1320                 os << "}";
1321
1322         if (language->babel() != doc_language->babel() &&
1323             (!next_ ||
1324              next_->getParLanguage(bparams)->babel() != language->babel()))
1325         {
1326                 os << endl
1327                    << subst(lyxrc.language_command_end, "$$lang",
1328                             doc_language->babel());
1329         }
1330
1331         switch (style.latextype) {
1332         case LATEX_ITEM_ENVIRONMENT:
1333         case LATEX_LIST_ENVIRONMENT:
1334                 if (next_ && (params().depth() < next_->params().depth())) {
1335                         os << '\n';
1336                         texrow.newline();
1337                 }
1338                 break;
1339         case LATEX_ENVIRONMENT:
1340                 // if its the last paragraph of the current environment
1341                 // skip it otherwise fall through
1342                 if (next_
1343                     && (next_->layout != layout
1344                         || next_->params().depth() != params().depth()))
1345                         break;
1346         default:
1347                 // we don't need it for the last paragraph!!!
1348                 // or for tables in floats
1349                 //   -- effectively creates a \par where there isn't one which
1350                 //      breaks a \subfigure or \subtable.
1351                 if (next_) {
1352                         os << '\n';
1353                         texrow.newline();
1354                 }
1355         }
1356
1357         further_blank_line = false;
1358         if (params().lineBottom()) {
1359                 os << "\\lyxline{\\" << getFont(bparams,
1360                                                 size() - 1).latexSize() << '}';
1361                 further_blank_line = true;
1362         }
1363
1364         if (params().spaceBottom().kind() != VSpace::NONE) {
1365                 os << params().spaceBottom().asLatexCommand(bparams);
1366                 further_blank_line = true;
1367         }
1368
1369         if (params().pagebreakBottom()) {
1370                 os << "\\newpage";
1371                 further_blank_line = true;
1372         }
1373
1374         if (further_blank_line){
1375                 os << '\n';
1376                 texrow.newline();
1377         }
1378
1379         if (!params().spacing().isDefault()
1380             && (!next_ || !next_->hasSameLayout(this))) {
1381                 os << params().spacing().writeEnvirEnd() << "\n";
1382                 texrow.newline();
1383         }
1384
1385         // we don't need it for the last paragraph!!!
1386         if (next_) {
1387                 os << '\n';
1388                 texrow.newline();
1389         }
1390
1391         lyxerr[Debug::LATEX] << "TeXOnePar...done " << next_ << endl;
1392         return next_;
1393 }
1394
1395
1396 // This one spits out the text of the paragraph
1397 bool Paragraph::simpleTeXOnePar(Buffer const * buf,
1398                                    BufferParams const & bparams,
1399                                    ostream & os, TexRow & texrow,
1400                                    bool moving_arg)
1401 {
1402         lyxerr[Debug::LATEX] << "SimpleTeXOnePar...     " << this << endl;
1403
1404         bool return_value = false;
1405
1406         LyXLayout const & style =
1407                 textclasslist.Style(bparams.textclass,
1408                                     getLayout());
1409         LyXFont basefont;
1410
1411         // Maybe we have to create a optional argument.
1412         size_type main_body;
1413         if (style.labeltype != LABEL_MANUAL)
1414                 main_body = 0;
1415         else
1416                 main_body = beginningOfMainBody();
1417
1418         int column = 0;
1419
1420         if (main_body > 0) {
1421                 os << '[';
1422                 ++column;
1423                 basefont = getFont(bparams, -2); // Get label font
1424         } else {
1425                 basefont = getFont(bparams, -1); // Get layout font
1426         }
1427
1428         if (main_body >= 0
1429             && !pimpl_->size()) {
1430                 if (style.isCommand()) {
1431                         os << '{';
1432                         ++column;
1433                 }
1434         }
1435
1436         moving_arg |= style.needprotect;
1437
1438         // Which font is currently active?
1439         LyXFont running_font(basefont);
1440         // Do we have an open font change?
1441         bool open_font = false;
1442
1443         texrow.start(this, 0);
1444
1445         for (size_type i = 0; i < size(); ++i) {
1446                 ++column;
1447                 // First char in paragraph or after label?
1448                 if (i == main_body) {
1449                         if (main_body > 0) {
1450                                 if (open_font) {
1451                                         column += running_font.latexWriteEndChanges(os, basefont, basefont);
1452                                         open_font = false;
1453                                 }
1454                                 basefont = getFont(bparams, -1); // Now use the layout font
1455                                 running_font = basefont;
1456                                 os << ']';
1457                                 ++column;
1458                         }
1459                         if (style.isCommand()) {
1460                                 os << '{';
1461                                 ++column;
1462                         }
1463
1464                         if (params().noindent()) {
1465                                 os << "\\noindent ";
1466                                 column += 10;
1467                         }
1468                         switch (params().align()) {
1469                         case LYX_ALIGN_NONE:
1470                         case LYX_ALIGN_BLOCK:
1471                         case LYX_ALIGN_LAYOUT:
1472                         case LYX_ALIGN_SPECIAL:
1473                                 break;
1474                         case LYX_ALIGN_LEFT:
1475                                 if (getParLanguage(bparams)->babel() != "hebrew") {
1476                                         os << "\\begin{flushleft}";
1477                                         column+= 17;
1478                                 } else {
1479                                         os << "\\begin{flushright}";
1480                                         column+= 18;
1481                                 }
1482                                 break;
1483                         case LYX_ALIGN_RIGHT:
1484                                 if (getParLanguage(bparams)->babel() != "hebrew") {
1485                                         os << "\\begin{flushright}";
1486                                         column+= 18;
1487                                 } else {
1488                                         os << "\\begin{flushleft}";
1489                                         column+= 17;
1490                                 }
1491                                 break;
1492                         case LYX_ALIGN_CENTER:
1493                                 os << "\\begin{center}";
1494                                 column+= 14;
1495                                 break;
1496                         }
1497                 }
1498
1499                 value_type c = getChar(i);
1500
1501                 // Fully instantiated font
1502                 LyXFont font = getFont(bparams, i);
1503
1504                 LyXFont last_font = running_font;
1505
1506                 // Spaces at end of font change are simulated to be
1507                 // outside font change, i.e. we write "\textXX{text} "
1508                 // rather than "\textXX{text }". (Asger)
1509                 if (open_font && c == ' ' && i <= size() - 2
1510                     && !getFont(bparams, i + 1).equalExceptLatex(running_font)
1511                     && !getFont(bparams, i + 1).equalExceptLatex(font)) {
1512                         font = getFont(bparams, i + 1);
1513                 }
1514                 // We end font definition before blanks
1515                 if (!font.equalExceptLatex(running_font) && open_font) {
1516                         column += running_font.latexWriteEndChanges(os,
1517                                                                     basefont,
1518                                                                     (i == main_body-1) ? basefont : font);
1519                         running_font = basefont;
1520                         open_font = false;
1521                 }
1522
1523                 // Blanks are printed before start of fontswitch
1524                 if (c == ' ') {
1525                         // Do not print the separation of the optional argument
1526                         if (i != main_body - 1) {
1527                                 pimpl_->simpleTeXBlanks(os, texrow, i,
1528                                                        column, font, style);
1529                         }
1530                 }
1531
1532                 // Do we need to change font?
1533                 if (!font.equalExceptLatex(running_font)
1534                     && i != main_body-1) {
1535                         column += font.latexWriteStartChanges(os, basefont,
1536                                                               last_font);
1537                         running_font = font;
1538                         open_font = true;
1539                 }
1540
1541                 if (c == Paragraph::META_NEWLINE) {
1542                         // newlines are handled differently here than
1543                         // the default in SimpleTeXSpecialChars().
1544                         if (!style.newline_allowed
1545 #ifndef NO_LATEX
1546                             || font.latex() == LyXFont::ON
1547 #endif
1548                                 ) {
1549                                 os << '\n';
1550                         } else {
1551                                 if (open_font) {
1552                                         column += running_font.latexWriteEndChanges(os, basefont, basefont);
1553                                         open_font = false;
1554                                 }
1555                                 basefont = getFont(bparams, -1);
1556                                 running_font = basefont;
1557                                 if (font.family() ==
1558                                     LyXFont::TYPEWRITER_FAMILY) {
1559                                         os << "~";
1560                                 }
1561                                 if (moving_arg)
1562                                         os << "\\protect ";
1563                                 os << "\\\\\n";
1564                         }
1565                         texrow.newline();
1566                         texrow.start(this, i + 1);
1567                         column = 0;
1568                 } else {
1569                         pimpl_->simpleTeXSpecialChars(buf, bparams,
1570                                                       os, texrow, moving_arg,
1571                                                       font, running_font,
1572                                                       basefont, open_font,
1573                                                       style, i, column, c);
1574                 }
1575         }
1576
1577         // If we have an open font definition, we have to close it
1578         if (open_font) {
1579 #ifdef FIXED_LANGUAGE_END_DETECTION
1580                 if (next_) {
1581                         running_font
1582                                 .latexWriteEndChanges(os, basefont,
1583                                                       next_->getFont(bparams,
1584                                                       0));
1585                 } else {
1586                         running_font.latexWriteEndChanges(os, basefont,
1587                                                           basefont);
1588                 }
1589 #else
1590 #ifdef WITH_WARNINGS
1591 #warning For now we ALWAYS have to close the foreign font settings if they are
1592 #warning there as we start another \selectlanguage with the next paragraph if
1593 #warning we are in need of this. This should be fixed sometime (Jug)
1594 #endif
1595                 running_font.latexWriteEndChanges(os, basefont,  basefont);
1596 #endif
1597         }
1598
1599         // Needed if there is an optional argument but no contents.
1600         if (main_body > 0 && main_body == size()) {
1601                 os << "]~";
1602                 return_value = false;
1603         }
1604
1605         switch (params().align()) {
1606         case LYX_ALIGN_NONE:
1607         case LYX_ALIGN_BLOCK:
1608         case LYX_ALIGN_LAYOUT:
1609         case LYX_ALIGN_SPECIAL:
1610                 break;
1611         case LYX_ALIGN_LEFT:
1612                 if (getParLanguage(bparams)->babel() != "hebrew") {
1613                         os << "\\end{flushleft}";
1614                         column+= 15;
1615                 } else {
1616                         os << "\\end{flushright}";
1617                         column+= 16;
1618                 }
1619                 break;
1620         case LYX_ALIGN_RIGHT:
1621                 if (getParLanguage(bparams)->babel() != "hebrew") {
1622                         os << "\\end{flushright}";
1623                         column+= 16;
1624                 } else {
1625                         os << "\\end{flushleft}";
1626                         column+= 15;
1627                 }
1628                 break;
1629         case LYX_ALIGN_CENTER:
1630                 os << "\\end{center}";
1631                 column+= 12;
1632                 break;
1633         }
1634
1635         lyxerr[Debug::LATEX] << "SimpleTeXOnePar...done " << this << endl;
1636         return return_value;
1637 }
1638
1639
1640 bool Paragraph::linuxDocConvertChar(char c, string & sgml_string)
1641 {
1642         bool retval = false;
1643         switch (c) {
1644         case Paragraph::META_HFILL:
1645                 sgml_string.erase();
1646                 break;
1647         case Paragraph::META_NEWLINE:
1648                 sgml_string = '\n';
1649                 break;
1650         case '&':
1651                 sgml_string = "&amp;";
1652                 break;
1653         case '<':
1654                 sgml_string = "&lt;";
1655                 break;
1656         case '>':
1657                 sgml_string = "&gt;";
1658                 break;
1659         case '$':
1660                 sgml_string = "&dollar;";
1661                 break;
1662         case '#':
1663                 sgml_string = "&num;";
1664                 break;
1665         case '%':
1666                 sgml_string = "&percnt;";
1667                 break;
1668         case '[':
1669                 sgml_string = "&lsqb;";
1670                 break;
1671         case ']':
1672                 sgml_string = "&rsqb;";
1673                 break;
1674         case '{':
1675                 sgml_string = "&lcub;";
1676                 break;
1677         case '}':
1678                 sgml_string = "&rcub;";
1679                 break;
1680         case '~':
1681                 sgml_string = "&tilde;";
1682                 break;
1683         case '"':
1684                 sgml_string = "&quot;";
1685                 break;
1686         case '\\':
1687                 sgml_string = "&bsol;";
1688                 break;
1689         case ' ':
1690                 retval = true;
1691                 sgml_string = ' ';
1692                 break;
1693         case '\0': // Ignore :-)
1694                 sgml_string.erase();
1695                 break;
1696         default:
1697                 sgml_string = c;
1698                 break;
1699         }
1700         return retval;
1701 }
1702
1703
1704 Paragraph * Paragraph::TeXEnvironment(Buffer const * buf,
1705                                             BufferParams const & bparams,
1706                                             ostream & os, TexRow & texrow)
1707 {
1708         lyxerr[Debug::LATEX] << "TeXEnvironment...     " << this << endl;
1709
1710         LyXLayout const & style =
1711                 textclasslist.Style(bparams.textclass,
1712                                     layout);
1713
1714         if (style.isEnvironment()){
1715                 if (style.latextype == LATEX_LIST_ENVIRONMENT) {
1716                         os << "\\begin{" << style.latexname() << "}{"
1717                            << params().labelWidthString() << "}\n";
1718                 } else if (style.labeltype == LABEL_BIBLIO) {
1719                         // ale970405
1720                         os << "\\begin{" << style.latexname() << "}{"
1721                            <<  bibitemWidest(buf)
1722                            << "}\n";
1723                 } else if (style.latextype == LATEX_ITEM_ENVIRONMENT) {
1724                         os << "\\begin{" << style.latexname() << '}'
1725                            << style.latexparam() << '\n';
1726                 } else
1727                         os << "\\begin{" << style.latexname() << '}'
1728                            << style.latexparam() << '\n';
1729                 texrow.newline();
1730         }
1731         Paragraph * par = this;
1732         do {
1733                 par = par->TeXOnePar(buf, bparams,
1734                                      os, texrow, false);
1735
1736                 if (par && par->params().depth() > params().depth()) {
1737                         if (textclasslist.Style(bparams.textclass,
1738                                                 par->layout).isParagraph()
1739                             // Thinko!
1740                             // How to handle this? (Lgb)
1741                             //&& !suffixIs(os, "\n\n")
1742                                 ) {
1743                                 // There should be at least one '\n' already
1744                                 // but we need there to be two for Standard
1745                                 // paragraphs that are depth-increment'ed to be
1746                                 // output correctly.  However, tables can
1747                                 // also be paragraphs so don't adjust them.
1748                                 // ARRae
1749                                 // Thinkee:
1750                                 // Will it ever harm to have one '\n' too
1751                                 // many? i.e. that we sometimes will have
1752                                 // three in a row. (Lgb)
1753                                 os << '\n';
1754                                 texrow.newline();
1755                         }
1756                         par = par->pimpl_->TeXDeeper(buf, bparams, os, texrow);
1757                 }
1758         } while (par
1759                  && par->layout == layout
1760                  && par->params().depth() == params().depth());
1761
1762         if (style.isEnvironment()) {
1763                 os << "\\end{" << style.latexname() << "}\n";
1764         }
1765
1766         lyxerr[Debug::LATEX] << "TeXEnvironment...done " << par << endl;
1767         return par;  // ale970302
1768 }
1769
1770
1771 bool Paragraph::isHfill(size_type pos) const
1772 {
1773         return IsHfillChar(getChar(pos));
1774 }
1775
1776
1777 bool Paragraph::isInset(size_type pos) const
1778 {
1779         return IsInsetChar(getChar(pos));
1780 }
1781
1782
1783 bool Paragraph::isNewline(size_type pos) const
1784 {
1785         return pos >= 0 && IsNewlineChar(getChar(pos));
1786 }
1787
1788
1789 bool Paragraph::isSeparator(size_type pos) const
1790 {
1791         return IsSeparatorChar(getChar(pos));
1792 }
1793
1794
1795 bool Paragraph::isLineSeparator(size_type pos) const
1796 {
1797         return IsLineSeparatorChar(getChar(pos));
1798 }
1799
1800
1801 bool Paragraph::isKomma(size_type pos) const
1802 {
1803         return IsKommaChar(getChar(pos));
1804 }
1805
1806
1807 /// Used by the spellchecker
1808 bool Paragraph::isLetter(Paragraph::size_type pos) const
1809 {
1810         value_type const c = getChar(pos);
1811         if (IsLetterChar(c))
1812                 return true;
1813         // '\0' is not a letter, allthough every string contains "" (below)
1814         if (c == '\0')
1815                 return false;
1816         // We want to pass the ' and escape chars to ispell
1817         string const extra = lyxrc.isp_esc_chars + '\'';
1818         char ch[2] = { c, 0 };
1819         return contains(extra, ch);
1820 }
1821
1822
1823 bool Paragraph::isWord(size_type pos ) const
1824 {
1825         return IsWordChar(getChar(pos)) ;
1826 }
1827
1828
1829 Language const *
1830 Paragraph::getParLanguage(BufferParams const & bparams) const
1831 {
1832         if (size() > 0) {
1833                 Language const * lang = getFirstFontSettings().language();
1834 #warning We should make this somewhat better, any ideas? (Jug)
1835                 if (lang == inherit_language || lang == ignore_language)
1836                         lang = bparams.language;
1837                 return lang;
1838         } else if (previous_)
1839                 return previous_->getParLanguage(bparams);
1840         else
1841                 return bparams.language;
1842 }
1843
1844
1845 bool Paragraph::isRightToLeftPar(BufferParams const & bparams) const
1846 {
1847         return lyxrc.rtl_support
1848                 && getParLanguage(bparams)->RightToLeft();
1849 }
1850
1851
1852 void Paragraph::changeLanguage(BufferParams const & bparams,
1853                                   Language const * from, Language const * to)
1854 {
1855         for (size_type i = 0; i < size(); ++i) {
1856                 LyXFont font = getFontSettings(bparams, i);
1857                 if (font.language() == from) {
1858                         font.setLanguage(to);
1859                         setFont(i, font);
1860                 }
1861         }
1862 }
1863
1864
1865 bool Paragraph::isMultiLingual(BufferParams const & bparams)
1866 {
1867         Language const * doc_language = bparams.language;
1868         for (Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
1869              cit != pimpl_->fontlist.end(); ++cit)
1870                 if (cit->font().language() != inherit_language &&
1871                         cit->font().language() != ignore_language &&
1872                         cit->font().language() != doc_language)
1873                         return true;
1874         return false;
1875 }
1876
1877
1878 // Convert the paragraph to a string.
1879 // Used for building the table of contents
1880 string const Paragraph::asString(Buffer const * buffer, bool label)
1881 {
1882         BufferParams const & bparams = buffer->params;
1883         string s;
1884         if (label && !params().labelString().empty())
1885                 s += params().labelString() + ' ';
1886         string::size_type const len = s.size();
1887
1888         for (Paragraph::size_type i = 0; i < size(); ++i) {
1889                 value_type c = getChar(i);
1890                 if (IsPrintable(c))
1891                         s += c;
1892                 else if (c == META_INSET &&
1893                          getInset(i)->lyxCode() == Inset::MATH_CODE) {
1894                         ostringstream ost;
1895                         getInset(i)->ascii(buffer, ost);
1896                         s += subst(ost.str().c_str(),'\n',' ');
1897                 }
1898         }
1899
1900         if (isRightToLeftPar(bparams))
1901                 reverse(s.begin() + len,s.end());
1902
1903         return s;
1904 }
1905
1906
1907 string const Paragraph::asString(Buffer const * buffer,
1908                             Paragraph::size_type beg,
1909                             Paragraph::size_type end)
1910 {
1911         ostringstream ost;
1912
1913         if (beg == 0 && !params().labelString().empty())
1914                 ost << params().labelString() << ' ';
1915
1916         for (Paragraph::size_type i = beg; i < end; ++i) {
1917                 value_type const c = getUChar(buffer->params, i);
1918                 if (IsPrintable(c))
1919                         ost << c;
1920                 else if (c == META_INSET) {
1921                         getInset(i)->ascii(buffer, ost);
1922                 }
1923         }
1924
1925         return ost.str().c_str();
1926 }
1927
1928
1929 void Paragraph::setInsetOwner(Inset * i)
1930 {
1931         pimpl_->inset_owner = i;
1932         for (InsetList::const_iterator cit = insetlist.begin();
1933              cit != insetlist.end(); ++cit) {
1934                 if (cit->inset)
1935                         cit->inset->setOwner(i);
1936         }
1937 }
1938
1939
1940 void Paragraph::deleteInsetsLyXText(BufferView * bv)
1941 {
1942         // then the insets
1943         for (InsetList::const_iterator cit = insetlist.begin();
1944              cit != insetlist.end(); ++cit) {
1945                 if (cit->inset) {
1946                         if (cit->inset->isTextInset()) {
1947                                 static_cast<UpdatableInset *>
1948                                         (cit->inset)->deleteLyXText(bv, true);
1949                         }
1950                 }
1951         }
1952 }
1953
1954
1955 void Paragraph::resizeInsetsLyXText(BufferView * bv)
1956 {
1957         // then the insets
1958         for (InsetList::const_iterator cit = insetlist.begin();
1959              cit != insetlist.end(); ++cit) {
1960                 if (cit->inset) {
1961                         if (cit->inset->isTextInset()) {
1962                                 static_cast<UpdatableInset *>
1963                                         (cit->inset)->resizeLyXText(bv, true);
1964                         }
1965                 }
1966         }
1967 }
1968
1969
1970 void Paragraph::setContentsFromPar(Paragraph * par)
1971 {
1972         pimpl_->setContentsFromPar(par);
1973 }
1974
1975
1976 Paragraph::size_type Paragraph::size() const
1977 {
1978         return pimpl_->size();
1979 }
1980
1981
1982 Paragraph::value_type
1983 Paragraph::getChar(Paragraph::size_type pos) const
1984 {
1985         return pimpl_->getChar(pos);
1986 }
1987
1988
1989 int Paragraph::id() const
1990 {
1991         return pimpl_->id_;
1992 }
1993
1994
1995 void  Paragraph::id(int id_arg)
1996 {
1997         pimpl_->id_ = id_arg;
1998 }
1999
2000
2001 LyXTextClass::LayoutList::size_type Paragraph::getLayout() const
2002 {
2003         return layout;
2004 }
2005
2006
2007 bool Paragraph::isFirstInSequence() const
2008 {
2009         Paragraph const * dhook = depthHook(getDepth());
2010         return (dhook == this
2011                 || dhook->getLayout() != getLayout()
2012                 || dhook->getDepth() != getDepth());
2013 }
2014
2015
2016 Inset * Paragraph::inInset() const
2017 {
2018         return pimpl_->inset_owner;
2019 }
2020
2021
2022 void Paragraph::clearContents()
2023 {
2024         pimpl_->clear();
2025 }
2026
2027
2028 void Paragraph::setCounter(int i, int v)
2029 {
2030         pimpl_->counter_[i] = v;
2031 }
2032
2033
2034 int Paragraph::getCounter(int i) const
2035 {
2036         return pimpl_->counter_[i];
2037 }
2038
2039
2040 void Paragraph::incCounter(int i)
2041 {
2042         pimpl_->counter_[i]++;
2043 }
2044
2045
2046 void Paragraph::setChar(size_type pos, value_type c)
2047 {
2048         pimpl_->setChar(pos, c);
2049 }
2050
2051
2052 Paragraph::inset_iterator::inset_iterator(Paragraph::InsetList::iterator const & iter)
2053  : it(iter)
2054 {}
2055
2056
2057 Paragraph::inset_iterator Paragraph::inset_iterator_begin()
2058 {
2059         return inset_iterator(insetlist.begin());
2060 }
2061
2062
2063 Paragraph::inset_iterator Paragraph::inset_iterator_end()
2064 {
2065         return inset_iterator(insetlist.end());
2066 }
2067
2068
2069 ParagraphParameters & Paragraph::params()
2070 {
2071         return pimpl_->params;
2072 }
2073
2074
2075 ParagraphParameters const & Paragraph::params() const
2076 {
2077         return pimpl_->params;
2078 }
2079
2080
2081 Paragraph * Paragraph::getParFromID(int id) const
2082 {
2083         return pimpl_->getParFromID(id);
2084 }