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 "support/lstrings.h"
  39 #include "lyx_gui_misc.h"
  40 #include "texrow.h"
  41 #include "support/lyxmanip.h"
  42 #include "BufferView.h"
  43 #include "encoding.h"
  44 #include "ParameterStruct.h"
  45 #include "gettext.h"
  46
  47 using std::ostream;
  48 using std::endl;
  49 using std::fstream;
  50 using std::ios;
  51 using std::lower_bound;
  52 using std::upper_bound;
  53 using std::reverse;
  54
  55 int tex_code_break_column = 72;  // needs non-zero initialization. set later.
  56 // this is a bad idea, but how can Paragraph find its buffer to get
  57 // parameters? (JMarc)
  58
  59 extern string bibitemWidest(Buffer const *);
  60
  61 // this is a minibuffer
  62
  63 namespace {
  64
  65 char minibuffer_char;
  66 LyXFont minibuffer_font;
  67 Inset * minibuffer_inset;
  68
  69 } // namespace anon
  70
  71
  72 extern BufferView * current_view;
  73
  74
  75 Paragraph::Paragraph()
  76                 : pimpl_(new Paragraph::Pimpl(this))
  77 {
  78         for (int i = 0; i < 10; ++i) setCounter(i , 0);
  79         next_ = 0;
  80         previous_ = 0;
  81         enumdepth = 0;
  82         itemdepth = 0;
  83         bibkey = 0; // ale970302
  84         clear();
  85 }
  86
  87
  88 // This konstruktor inserts the new paragraph in a list.
  89 Paragraph::Paragraph(Paragraph * par)
  90                 : pimpl_(new Paragraph::Pimpl(this))
  91 {
  92         for (int i = 0; i < 10; ++i)
  93                 setCounter(i, 0);
  94         enumdepth = 0;
  95         itemdepth = 0;
  96
  97         // double linked list begin
  98         next_ = par->next_;
  99         if (next_)
 100                 next_->previous_ = this;
 101         previous_ = par;
 102         previous_->next_ = this;
 103         // end
 104
 105         bibkey = 0; // ale970302
 106
 107         clear();
 108 }
 109
 110
 111 Paragraph::Paragraph(Paragraph const & lp, bool same_ids)
 112         : pimpl_(new Paragraph::Pimpl(*lp.pimpl_, this, same_ids))
 113 {
 114         for (int i = 0; i < 10; ++i)
 115                 setCounter(i , 0);
 116         enumdepth = 0;
 117         itemdepth = 0;
 118         next_ = 0;
 119         previous_ = 0;
 120
 121         // this is because of the dummy layout of the paragraphs that
 122         // follow footnotes
 123         layout = lp.layout;
 124
 125         // ale970302
 126         if (lp.bibkey) {
 127                 bibkey = static_cast<InsetBibKey *>
 128                         (lp.bibkey->clone(*current_view->buffer()));
 129         } else {
 130                 bibkey = 0;
 131         }
 132
 133         // copy everything behind the break-position to the new paragraph
 134
 135         insetlist = lp.insetlist;
 136         for (InsetList::iterator it = insetlist.begin();
 137              it != insetlist.end(); ++it)
 138         {
 139                 it->inset = it->inset->clone(*current_view->buffer(), same_ids);
 140         }
 141 }
 142
 143
 144 // the destructor removes the new paragraph from the list
 145 Paragraph::~Paragraph()
 146 {
 147         if (previous_)
 148                 previous_->next_ = next_;
 149         if (next_)
 150                 next_->previous_ = previous_;
 151
 152         for (InsetList::iterator it = insetlist.begin();
 153              it != insetlist.end(); ++it) {
 154                 delete it->inset;
 155         }
 156
 157         // ale970302
 158         delete bibkey;
 159
 160         delete pimpl_;
 161         //
 162         //lyxerr << "Paragraph::paragraph_id = "
 163         //       << Paragraph::paragraph_id << endl;
 164 }
 165
 166
 167 void Paragraph::writeFile(Buffer const * buf, ostream & os,
 168                           BufferParams const & bparams,
 169                           depth_type dth) const
 170 {
 171         // The beginning or end of a deeper (i.e. nested) area?
 172         if (dth != params().depth()) {
 173                 if (params().depth() > dth) {
 174                         while (params().depth() > dth) {
 175                                 os << "\n\\begin_deeper ";
 176                                 ++dth;
 177                         }
 178                 } else {
 179                         while (params().depth() < dth) {
 180                                 os << "\n\\end_deeper ";
 181                                 --dth;
 182                         }
 183                 }
 184         }
 185
 186         // First write the layout
 187         os << "\n\\layout "
 188            << textclasslist.NameOfLayout(bparams.textclass, layout)
 189            << "\n";
 190
 191         // Maybe some vertical spaces.
 192         if (params().spaceTop().kind() != VSpace::NONE)
 193                 os << "\\added_space_top "
 194                    << params().spaceTop().asLyXCommand() << " ";
 195         if (params().spaceBottom().kind() != VSpace::NONE)
 196                 os << "\\added_space_bottom "
 197                    << params().spaceBottom().asLyXCommand() << " ";
 198
 199         // Maybe the paragraph has special spacing
 200         params().spacing().writeFile(os, true);
 201
 202         // The labelwidth string used in lists.
 203         if (!params().labelWidthString().empty())
 204                 os << "\\labelwidthstring "
 205                    << params().labelWidthString() << '\n';
 206
 207         // Lines above or below?
 208         if (params().lineTop())
 209                 os << "\\line_top ";
 210         if (params().lineBottom())
 211                 os << "\\line_bottom ";
 212
 213         // Pagebreaks above or below?
 214         if (params().pagebreakTop())
 215                 os << "\\pagebreak_top ";
 216         if (params().pagebreakBottom())
 217                 os << "\\pagebreak_bottom ";
 218
 219         // Start of appendix?
 220         if (params().startOfAppendix())
 221                 os << "\\start_of_appendix ";
 222
 223         // Noindent?
 224         if (params().noindent())
 225                 os << "\\noindent ";
 226
 227         // Alignment?
 228         if (params().align() != LYX_ALIGN_LAYOUT) {
 229                 int h = 0;
 230                 switch (params().align()) {
 231                 case LYX_ALIGN_LEFT: h = 1; break;
 232                 case LYX_ALIGN_RIGHT: h = 2; break;
 233                 case LYX_ALIGN_CENTER: h = 3; break;
 234                 default: h = 0; break;
 235                 }
 236                 os << "\\align " << string_align[h] << " ";
 237         }
 238
 239         // bibitem  ale970302
 240         if (bibkey)
 241                 bibkey->write(buf, os);
 242
 243         LyXFont font1(LyXFont::ALL_INHERIT, bparams.language);
 244
 245         int column = 0;
 246         for (size_type i = 0; i < size(); ++i) {
 247                 if (!i) {
 248                         os << "\n";
 249                         column = 0;
 250                 }
 251
 252                 // Write font changes
 253                 LyXFont font2 = getFontSettings(bparams, i);
 254                 if (font2 != font1) {
 255                         font2.lyxWriteChanges(font1, bparams.language, os);
 256                         column = 0;
 257                         font1 = font2;
 258                 }
 259
 260                 value_type const c = getChar(i);
 261                 switch (c) {
 262                 case META_INSET:
 263                 {
 264                         Inset const * inset = getInset(i);
 265                         if (inset)
 266                                 if (inset->directWrite()) {
 267                                         // international char, let it write
 268                                         // code directly so it's shorter in
 269                                         // the file
 270                                         inset->write(buf, os);
 271                                 } else {
 272                                         os << "\n\\begin_inset ";
 273                                         inset->write(buf, os);
 274                                         os << "\n\\end_inset \n\n";
 275                                         column = 0;
 276                                 }
 277                 }
 278                 break;
 279                 case META_NEWLINE:
 280                         os << "\n\\newline \n";
 281                         column = 0;
 282                         break;
 283                 case META_HFILL:
 284                         os << "\n\\hfill \n";
 285                         column = 0;
 286                         break;
 287                 case '\\':
 288                         os << "\n\\backslash \n";
 289                         column = 0;
 290                         break;
 291                 case '.':
 292                         if (i + 1 < size() && getChar(i + 1) == ' ') {
 293                                 os << ".\n";
 294                                 column = 0;
 295                         } else
 296                                 os << ".";
 297                         break;
 298                 default:
 299                         if ((column > 70 && c == ' ')
 300                             || column > 79) {
 301                                 os << "\n";
 302                                 column = 0;
 303                         }
 304                         // this check is to amend a bug. LyX sometimes
 305                         // inserts '\0' this could cause problems.
 306                         if (c != '\0')
 307                                 os << c;
 308                         else
 309                                 lyxerr << "ERROR (Paragraph::writeFile):"
 310                                         " NULL char in structure." << endl;
 311                         ++column;
 312                         break;
 313                 }
 314         }
 315
 316         // now write the next paragraph
 317         if (next_)
 318                 next_->writeFile(buf, os, bparams, dth);
 319 }
 320
 321
 322 void Paragraph::validate(LaTeXFeatures & features) const
 323 {
 324         BufferParams const & bparams = features.bufferParams();
 325
 326         // check the params.
 327         if (params().lineTop() || params().lineBottom())
 328                 features.lyxline = true;
 329         if (!params().spacing().isDefault())
 330                 features.setspace = true;
 331
 332         // then the layouts
 333         features.layout[getLayout()] = true;
 334
 335         // then the fonts
 336         Language const * doc_language = bparams.language;
 337
 338         for (Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 339              cit != pimpl_->fontlist.end(); ++cit) {
 340                 if (cit->font().noun() == LyXFont::ON) {
 341                         lyxerr[Debug::LATEX] << "font.noun: "
 342                                              << cit->font().noun()
 343                                              << endl;
 344                         features.noun = true;
 345                         lyxerr[Debug::LATEX] << "Noun enabled. Font: "
 346                                              << cit->font().stateText(0)
 347                                              << endl;
 348                 }
 349                 switch (cit->font().color()) {
 350                 case LColor::none:
 351                 case LColor::inherit:
 352                 case LColor::ignore:
 353                         // probably we should put here all interface colors used for
 354                         // font displaying! For now I just add this ones I know of (Jug)
 355                 case LColor::latex:
 356                 case LColor::note:
 357                         break;
 358                 default:
 359                         features.color = true;
 360                         lyxerr[Debug::LATEX] << "Color enabled. Font: "
 361                                              << cit->font().stateText(0)
 362                                              << endl;
 363                 }
 364
 365                 Language const * language = cit->font().language();
 366                 if (language != ignore_language &&
 367                         language != inherit_language &&
 368                         language->babel() != doc_language->babel())
 369                 {
 370                         features.UsedLanguages.insert(language);
 371                         lyxerr[Debug::LATEX] << "Found language "
 372                                              << language->babel() << endl;
 373                 }
 374         }
 375
 376         // then the insets
 377         for (InsetList::const_iterator cit = insetlist.begin();
 378              cit != insetlist.end(); ++cit) {
 379                 if (cit->inset)
 380                         cit->inset->validate(features);
 381         }
 382 }
 383
 384
 385 // First few functions needed for cut and paste and paragraph breaking.
 386 void Paragraph::copyIntoMinibuffer(Buffer const & buffer,
 387                                       Paragraph::size_type pos) const
 388 {
 389         BufferParams bparams = buffer.params;
 390
 391         minibuffer_char = getChar(pos);
 392         minibuffer_font = getFontSettings(bparams, pos);
 393         minibuffer_inset = 0;
 394         if (minibuffer_char == Paragraph::META_INSET) {
 395                 if (getInset(pos)) {
 396                         minibuffer_inset = getInset(pos)->clone(buffer);
 397                 } else {
 398                         minibuffer_inset = 0;
 399                         minibuffer_char = ' ';
 400                         // This reflects what GetInset() does (ARRae)
 401                 }
 402         }
 403 }
 404
 405
 406 void Paragraph::cutIntoMinibuffer(BufferParams const & bparams,
 407                                      Paragraph::size_type pos)
 408 {
 409         minibuffer_char = getChar(pos);
 410         minibuffer_font = getFontSettings(bparams, pos);
 411         minibuffer_inset = 0;
 412         if (minibuffer_char == Paragraph::META_INSET) {
 413                 if (getInset(pos)) {
 414                         minibuffer_inset = getInset(pos);
 415                         // This is a little hack since I want exactly
 416                         // the inset, not just a clone. Otherwise
 417                         // the inset would be deleted when calling Erase(pos)
 418                         // find the entry
 419                         InsetTable search_elem(pos, 0);
 420                         InsetList::iterator it =
 421                                 lower_bound(insetlist.begin(),
 422                                             insetlist.end(),
 423                                             search_elem, Pimpl::matchIT());
 424                         if (it != insetlist.end() && it->pos == pos)
 425                                 it->inset = 0;
 426                 } else {
 427                         minibuffer_inset = 0;
 428                         minibuffer_char = ' ';
 429                         // This reflects what GetInset() does (ARRae)
 430                 }
 431
 432         }
 433
 434         // Erase(pos); now the caller is responsible for that.
 435 }
 436
 437
 438 bool Paragraph::insertFromMinibuffer(Paragraph::size_type pos)
 439 {
 440         if ((minibuffer_char == Paragraph::META_INSET) &&
 441             !insetAllowed(minibuffer_inset->lyxCode()))
 442                 return false;
 443         if (minibuffer_char == Paragraph::META_INSET)
 444                 insertInset(pos, minibuffer_inset, minibuffer_font);
 445         else {
 446                 LyXFont f = minibuffer_font;
 447                 if (checkInsertChar(f))
 448                         insertChar(pos, minibuffer_char, f);
 449         }
 450         return true;
 451 }
 452
 453 // end of minibuffer
 454
 455
 456
 457 void Paragraph::clear()
 458 {
 459         params().clear();
 460
 461         layout = 0;
 462         bibkey = 0;
 463 }
 464
 465
 466 void Paragraph::erase(Paragraph::size_type pos)
 467 {
 468         pimpl_->erase(pos);
 469 }
 470
 471
 472 bool Paragraph::checkInsertChar(LyXFont & font)
 473 {
 474         if (pimpl_->inset_owner)
 475                 return pimpl_->inset_owner->checkInsertChar(font);
 476         return true;
 477 }
 478
 479
 480 void Paragraph::insertChar(Paragraph::size_type pos,
 481                               Paragraph::value_type c)
 482 {
 483         LyXFont const f(LyXFont::ALL_INHERIT);
 484         insertChar(pos, c, f);
 485 }
 486
 487
 488 void Paragraph::insertChar(Paragraph::size_type pos,
 489                               Paragraph::value_type c,
 490                               LyXFont const & font)
 491 {
 492         pimpl_->insertChar(pos, c, font);
 493 }
 494
 495
 496 void Paragraph::insertInset(Paragraph::size_type pos,
 497                                Inset * inset)
 498 {
 499         LyXFont const f(LyXFont::ALL_INHERIT);
 500         insertInset(pos, inset, f);
 501 }
 502
 503
 504 void Paragraph::insertInset(Paragraph::size_type pos,
 505                                Inset * inset, LyXFont const & font)
 506 {
 507         pimpl_->insertInset(pos, inset, font);
 508 }
 509
 510
 511 bool Paragraph::insetAllowed(Inset::Code code)
 512 {
 513         //lyxerr << "Paragraph::InsertInsetAllowed" << endl;
 514
 515         if (pimpl_->inset_owner)
 516                 return pimpl_->inset_owner->insetAllowed(code);
 517         return true;
 518 }
 519
 520
 521 Inset * Paragraph::getInset(Paragraph::size_type pos)
 522 {
 523         lyx::Assert(pos < size());
 524
 525         // Find the inset.
 526         InsetTable search_inset(pos, 0);
 527         InsetList::iterator it = lower_bound(insetlist.begin(),
 528                                              insetlist.end(),
 529                                              search_inset, Pimpl::matchIT());
 530         if (it != insetlist.end() && it->pos == pos)
 531                 return it->inset;
 532
 533         lyxerr << "ERROR (Paragraph::GetInset): "
 534                 "Inset does not exist: " << pos << endl;
 535         //::raise(SIGSTOP);
 536
 537         // text[pos] = ' '; // WHY!!! does this set the pos to ' '????
 538         // Did this commenting out introduce a bug? So far I have not
 539         // see any, please enlighten me. (Lgb)
 540         // My guess is that since the inset does not exist, we might
 541         // as well replace it with a space to prevent craches. (Asger)
 542         return 0;
 543 }
 544
 545
 546 Inset const * Paragraph::getInset(Paragraph::size_type pos) const
 547 {
 548         lyx::Assert(pos < size());
 549
 550         // Find the inset.
 551         InsetTable search_inset(pos, 0);
 552         InsetList::const_iterator cit = lower_bound(insetlist.begin(),
 553                                                     insetlist.end(),
 554                                                     search_inset, Pimpl::matchIT());
 555         if (cit != insetlist.end() && cit->pos == pos)
 556                 return cit->inset;
 557
 558         lyxerr << "ERROR (Paragraph::GetInset): "
 559                 "Inset does not exist: " << pos << endl;
 560         //::raise(SIGSTOP);
 561         //text[pos] = ' '; // WHY!!! does this set the pos to ' '????
 562         // Did this commenting out introduce a bug? So far I have not
 563         // see any, please enlighten me. (Lgb)
 564         // My guess is that since the inset does not exist, we might
 565         // as well replace it with a space to prevent craches. (Asger)
 566         return 0;
 567 }
 568
 569
 570 // Gets uninstantiated font setting at position.
 571 LyXFont const Paragraph::getFontSettings(BufferParams const & bparams,
 572                                          Paragraph::size_type pos) const
 573 {
 574         lyx::Assert(pos <= size());
 575
 576         Pimpl::FontTable search_font(pos, LyXFont());
 577         Pimpl::FontList::const_iterator cit = lower_bound(pimpl_->fontlist.begin(),
 578                                                    pimpl_->fontlist.end(),
 579                                                    search_font, Pimpl::matchFT());
 580         LyXFont retfont;
 581         if (cit != pimpl_->fontlist.end()) {
 582                 retfont = cit->font();
 583         } else if (pos == size() && size()) {
 584                 retfont = getFontSettings(bparams, pos - 1);
 585         } else
 586                 retfont = LyXFont(LyXFont::ALL_INHERIT, getParLanguage(bparams));
 587         if (retfont.language() == inherit_language)
 588                 retfont.setLanguage(bparams.language);
 589
 590         return retfont;
 591 }
 592
 593
 594 // Gets uninstantiated font setting at position 0
 595 LyXFont const Paragraph::getFirstFontSettings() const
 596 {
 597         if (size() > 0) {
 598                 if (!pimpl_->fontlist.empty())
 599                         return pimpl_->fontlist[0].font();
 600         }
 601
 602         return LyXFont(LyXFont::ALL_INHERIT);
 603 }
 604
 605
 606 // Gets the fully instantiated font at a given position in a paragraph
 607 // This is basically the same function as LyXText::GetFont() in text2.C.
 608 // The difference is that this one is used for generating the LaTeX file,
 609 // and thus cosmetic "improvements" are disallowed: This has to deliver
 610 // the true picture of the buffer. (Asger)
 611 // If position is -1, we get the layout font of the paragraph.
 612 // If position is -2, we get the font of the manual label of the paragraph.
 613 LyXFont const Paragraph::getFont(BufferParams const & bparams,
 614                               Paragraph::size_type pos) const
 615 {
 616         LyXFont tmpfont;
 617         LyXLayout const & layout =
 618                 textclasslist.Style(bparams.textclass,
 619                                     getLayout());
 620         Paragraph::size_type main_body = 0;
 621         if (layout.labeltype == LABEL_MANUAL)
 622                 main_body = beginningOfMainBody();
 623
 624         if (pos >= 0) {
 625                 LyXFont layoutfont;
 626                 if (pos < main_body)
 627                         layoutfont = layout.labelfont;
 628                 else
 629                         layoutfont = layout.font;
 630                 tmpfont = getFontSettings(bparams, pos);
 631                 tmpfont.realize(layoutfont, bparams.language);
 632         } else {
 633                 // process layoutfont for pos == -1 and labelfont for pos < -1
 634                 if (pos == -1)
 635                         tmpfont = layout.font;
 636                 else
 637                         tmpfont = layout.labelfont;
 638                 tmpfont.setLanguage(getParLanguage(bparams));
 639         }
 640
 641         // check for environment font information
 642         char par_depth = getDepth();
 643         Paragraph const * par = this;
 644         while (par && par->getDepth() && !tmpfont.resolved()) {
 645                 par = par->outerHook();
 646                 if (par) {
 647                         tmpfont.realize(textclasslist.
 648                                         Style(bparams.textclass,
 649                                               par->getLayout()).font, bparams.language);
 650                         par_depth = par->getDepth();
 651                 }
 652         }
 653
 654         tmpfont.realize(textclasslist
 655                         .TextClass(bparams.textclass)
 656                         .defaultfont(), bparams.language);
 657         return tmpfont;
 658 }
 659
 660
 661 /// Returns the height of the highest font in range
 662 LyXFont::FONT_SIZE
 663 Paragraph::highestFontInRange(Paragraph::size_type startpos,
 664                               Paragraph::size_type endpos) const
 665 {
 666         LyXFont::FONT_SIZE maxsize = LyXFont::SIZE_TINY;
 667         if (pimpl_->fontlist.empty())
 668                 return maxsize;
 669
 670         Pimpl::FontTable end_search(endpos, LyXFont());
 671         Pimpl::FontList::const_iterator end_it =
 672                 lower_bound(pimpl_->fontlist.begin(),
 673                             pimpl_->fontlist.end(),
 674                             end_search, Pimpl::matchFT());
 675         if (end_it != pimpl_->fontlist.end())
 676                 ++end_it;
 677
 678         Pimpl::FontTable start_search(startpos, LyXFont());
 679         for (Pimpl::FontList::const_iterator cit =
 680                         lower_bound(pimpl_->fontlist.begin(),
 681                                     pimpl_->fontlist.end(),
 682                                     start_search, Pimpl::matchFT());
 683              cit != end_it; ++cit)
 684         {
 685                 LyXFont::FONT_SIZE size = cit->font().size();
 686                 if (size > maxsize && size <= LyXFont::SIZE_HUGER)
 687                         maxsize = size;
 688         }
 689         return maxsize;
 690 }
 691
 692
 693 Paragraph::value_type
 694 Paragraph::getUChar(BufferParams const & bparams,
 695                        Paragraph::size_type pos) const
 696 {
 697         value_type c = getChar(pos);
 698         if (!lyxrc.rtl_support)
 699                 return c;
 700
 701         value_type uc = c;
 702         switch (c) {
 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         case '>':
 725                 uc = '<';
 726                 break;
 727         }
 728         if (uc != c && getFontSettings(bparams, pos).isRightToLeft())
 729                 return uc;
 730         else
 731                 return c;
 732 }
 733
 734
 735 void Paragraph::setFont(Paragraph::size_type pos,
 736                            LyXFont const & font)
 737 {
 738         lyx::Assert(pos <= size());
 739
 740         // First, reduce font against layout/label font
 741         // Update: The SetCharFont() routine in text2.C already
 742         // reduces font, so we don't need to do that here. (Asger)
 743         // No need to simplify this because it will disappear
 744         // in a new kernel. (Asger)
 745         // Next search font table
 746
 747         Pimpl::FontTable search_font(pos, LyXFont());
 748         Pimpl::FontList::iterator it = lower_bound(pimpl_->fontlist.begin(),
 749                                             pimpl_->fontlist.end(),
 750                                             search_font, Pimpl::matchFT());
 751         unsigned int i = it - pimpl_->fontlist.begin();
 752         bool notfound = it == pimpl_->fontlist.end();
 753
 754         if (!notfound && pimpl_->fontlist[i].font() == font)
 755                 return;
 756
 757         bool begin = pos == 0 || notfound ||
 758                 (i > 0 && pimpl_->fontlist[i-1].pos() == pos - 1);
 759         // Is position pos is a beginning of a font block?
 760         bool end = !notfound && pimpl_->fontlist[i].pos() == pos;
 761         // Is position pos is the end of a font block?
 762         if (begin && end) { // A single char block
 763                 if (i + 1 < pimpl_->fontlist.size() &&
 764                     pimpl_->fontlist[i + 1].font() == font) {
 765                         // Merge the singleton block with the next block
 766                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 767                         if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 768                                 pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i-1);
 769                 } else if (i > 0 && pimpl_->fontlist[i - 1].font() == font) {
 770                         // Merge the singleton block with the previous block
 771                         pimpl_->fontlist[i - 1].pos(pos);
 772                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 773                 } else
 774                         pimpl_->fontlist[i].font(font);
 775         } else if (begin) {
 776                 if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 777                         pimpl_->fontlist[i - 1].pos(pos);
 778                 else
 779                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 780                                         Pimpl::FontTable(pos, font));
 781         } else if (end) {
 782                 pimpl_->fontlist[i].pos(pos - 1);
 783                 if (!(i + 1 < pimpl_->fontlist.size() &&
 784                       pimpl_->fontlist[i + 1].font() == font))
 785                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 786                                         Pimpl::FontTable(pos, font));
 787         } else { // The general case. The block is splitted into 3 blocks
 788                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 789                                 Pimpl::FontTable(pos - 1, pimpl_->fontlist[i].font()));
 790                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 791                                 Pimpl::FontTable(pos, font));
 792         }
 793 }
 794
 795
 796
 797 void Paragraph::next(Paragraph * p)
 798 {
 799         next_ = p;
 800 }
 801
 802
 803 // This function is able to hide closed footnotes.
 804 Paragraph * Paragraph::next()
 805 {
 806         return next_;
 807 }
 808
 809
 810 Paragraph const * Paragraph::next() const
 811 {
 812         return next_;
 813 }
 814
 815
 816 void Paragraph::previous(Paragraph * p)
 817 {
 818         previous_ = p;
 819 }
 820
 821
 822 // This function is able to hide closed footnotes.
 823 Paragraph * Paragraph::previous()
 824 {
 825         return previous_;
 826 }
 827
 828
 829 // This function is able to hide closed footnotes.
 830 Paragraph const * Paragraph::previous() const
 831 {
 832         return previous_;
 833 }
 834
 835
 836 void Paragraph::breakParagraph(BufferParams const & bparams,
 837                                   Paragraph::size_type pos,
 838                                   int flag)
 839 {
 840         // create a new paragraph
 841         Paragraph * tmp = new Paragraph(this);
 842         // remember to set the inset_owner
 843         tmp->setInsetOwner(inInset());
 844
 845         // this is an idea for a more userfriendly layout handling, I will
 846         // see what the users say
 847
 848         // layout stays the same with latex-environments
 849         if (flag) {
 850                 tmp->setOnlyLayout(layout);
 851                 tmp->setLabelWidthString(params().labelWidthString());
 852         }
 853
 854         if (size() > pos || !size() || flag == 2) {
 855                 tmp->setOnlyLayout(layout);
 856                 tmp->params().align(params().align());
 857                 tmp->setLabelWidthString(params().labelWidthString());
 858
 859                 tmp->params().lineBottom(params().lineBottom());
 860                 params().lineBottom(false);
 861                 tmp->params().pagebreakBottom(params().pagebreakBottom());
 862                 params().pagebreakBottom(false);
 863                 tmp->params().spaceBottom(params().spaceBottom());
 864                 params().spaceBottom(VSpace(VSpace::NONE));
 865
 866                 tmp->params().depth(params().depth());
 867                 tmp->params().noindent(params().noindent());
 868
 869                 // copy everything behind the break-position
 870                 // to the new paragraph
 871                 size_type pos_end = pimpl_->size() - 1;
 872                 size_type i = pos;
 873                 size_type j = pos;
 874                 for (; i <= pos_end; ++i) {
 875                         cutIntoMinibuffer(bparams, i);
 876                         if (tmp->insertFromMinibuffer(j - pos))
 877                                 ++j;
 878                 }
 879                 for (i = pos_end; i >= pos; --i) {
 880                         erase(i);
 881                 }
 882         }
 883
 884         // just an idea of me
 885         if (!pos) {
 886                 tmp->params().lineTop(params().lineTop());
 887                 tmp->params().pagebreakTop(params().pagebreakTop());
 888                 tmp->params().spaceTop(params().spaceTop());
 889                 tmp->bibkey = bibkey;
 890                 clear();
 891                 // layout stays the same with latex-environments
 892                 if (flag) {
 893                         setOnlyLayout(tmp->layout);
 894                         setLabelWidthString(tmp->params().labelWidthString());
 895                         params().depth(tmp->params().depth());
 896                 }
 897         }
 898 }
 899
 900
 901 void Paragraph::makeSameLayout(Paragraph const * par)
 902 {
 903         layout = par->layout;
 904         // move to pimpl?
 905         params() = par->params();
 906 }
 907
 908
 909 int Paragraph::stripLeadingSpaces(LyXTextClassList::size_type tclass)
 910 {
 911         if (textclasslist.Style(tclass, getLayout()).free_spacing)
 912                 return 0;
 913
 914         int i = 0;
 915         while (size()
 916                && (isNewline(0) || isLineSeparator(0))){
 917                 erase(0);
 918                 ++i;
 919         }
 920
 921         return i;
 922 }
 923
 924
 925 bool Paragraph::hasSameLayout(Paragraph const * par) const
 926 {
 927         return
 928                 par->layout == layout &&
 929                 params().sameLayout(par->params());
 930 }
 931
 932
 933 void Paragraph::breakParagraphConservative(BufferParams const & bparams,
 934                                            Paragraph::size_type pos)
 935 {
 936         // create a new paragraph
 937         Paragraph * tmp = new Paragraph(this);
 938         tmp->makeSameLayout(this);
 939
 940         // When can pos > Last()?
 941         // I guess pos == Last() is possible.
 942         if (size() > pos) {
 943                 // copy everything behind the break-position to the new
 944                 // paragraph
 945                 size_type pos_end = pimpl_->size() - 1;
 946
 947                 //size_type i = pos;
 948                 //size_type j = pos;
 949                 for (size_type i = pos, j = pos; i <= pos_end; ++i) {
 950                         cutIntoMinibuffer(bparams, i);
 951                         if (tmp->insertFromMinibuffer(j - pos))
 952                                 ++j;
 953                 }
 954
 955                 for (size_type k = pos_end; k >= pos; --k) {
 956                         erase(k);
 957                 }
 958         }
 959 }
 960
 961
 962 // Be carefull, this does not make any check at all.
 963 // This method has wrong name, it combined this par with the next par.
 964 // In that sense it is the reverse of break paragraph. (Lgb)
 965 void Paragraph::pasteParagraph(BufferParams const & bparams)
 966 {
 967         // copy the next paragraph to this one
 968         Paragraph * the_next = next();
 969
 970         // first the DTP-stuff
 971         params().lineBottom(the_next->params().lineBottom());
 972         params().spaceBottom(the_next->params().spaceBottom());
 973         params().pagebreakBottom(the_next->params().pagebreakBottom());
 974
 975         size_type pos_end = the_next->pimpl_->size() - 1;
 976         size_type pos_insert = size();
 977
 978         // ok, now copy the paragraph
 979         for (size_type i = 0, j = 0; i <= pos_end; ++i) {
 980                 the_next->cutIntoMinibuffer(bparams, i);
 981                 if (insertFromMinibuffer(pos_insert + j))
 982                         ++j;
 983         }
 984
 985         // delete the next paragraph
 986         Paragraph * ppar = the_next->previous_;
 987         Paragraph * npar = the_next->next_;
 988         delete the_next;
 989         ppar->next(npar);
 990 }
 991
 992
 993 int Paragraph::getEndLabel(BufferParams const & bparams) const
 994 {
 995         Paragraph const * par = this;
 996         depth_type par_depth = getDepth();
 997         while (par) {
 998                 LyXTextClass::LayoutList::size_type layout = par->getLayout();
 999                 int const endlabeltype =
1000                         textclasslist.Style(bparams.textclass,
1001                                             layout).endlabeltype;
1002                 if (endlabeltype != END_LABEL_NO_LABEL) {
1003                         if (!next_)
1004                                 return endlabeltype;
1005
1006                         depth_type const next_depth = next_->getDepth();
1007                         if (par_depth > next_depth ||
1008                             (par_depth == next_depth
1009                              && layout != next_->getLayout()))
1010                                 return endlabeltype;
1011                         break;
1012                 }
1013                 if (par_depth == 0)
1014                         break;
1015                 par = par->outerHook();
1016                 if (par)
1017                         par_depth = par->getDepth();
1018         }
1019         return END_LABEL_NO_LABEL;
1020 }
1021
1022
1023 Paragraph::depth_type Paragraph::getDepth() const
1024 {
1025         return params().depth();
1026 }
1027
1028
1029 char Paragraph::getAlign() const
1030 {
1031         return params().align();
1032 }
1033
1034
1035 string const & Paragraph::getLabelstring() const
1036 {
1037         return params().labelString();
1038 }
1039
1040
1041 int Paragraph::getFirstCounter(int i) const
1042 {
1043         return pimpl_->counter_[i];
1044 }
1045
1046
1047 // the next two functions are for the manual labels
1048 string const Paragraph::getLabelWidthString() const
1049 {
1050         if (!params().labelWidthString().empty())
1051                 return params().labelWidthString();
1052         else
1053                 return _("Senseless with this layout!");
1054 }
1055
1056
1057 void Paragraph::setLabelWidthString(string const & s)
1058 {
1059         params().labelWidthString(s);
1060 }
1061
1062
1063 void Paragraph::setOnlyLayout(LyXTextClass::size_type new_layout)
1064 {
1065         layout = new_layout;
1066 }
1067
1068
1069 void Paragraph::setLayout(LyXTextClass::size_type new_layout)
1070 {
1071         layout = new_layout;
1072         params().labelWidthString(string());
1073         params().align(LYX_ALIGN_LAYOUT);
1074         params().spaceTop(VSpace(VSpace::NONE));
1075         params().spaceBottom(VSpace(VSpace::NONE));
1076         params().spacing(Spacing(Spacing::Default));
1077 }
1078
1079
1080 // if the layout of a paragraph contains a manual label, the beginning of the
1081 // main body is the beginning of the second word. This is what the par-
1082 // function returns. If the layout does not contain a label, the main
1083 // body always starts with position 0. This differentiation is necessary,
1084 // because there cannot be a newline or a blank <= the beginning of the
1085 // main body in TeX.
1086
1087 int Paragraph::beginningOfMainBody() const
1088 {
1089         // Unroll the first two cycles of the loop
1090         // and remember the previous character to
1091         // remove unnecessary GetChar() calls
1092         size_type i = 0;
1093         if (i < size()
1094             && getChar(i) != Paragraph::META_NEWLINE) {
1095                 ++i;
1096                 char previous_char = 0;
1097                 char temp = 0;
1098                 if (i < size()
1099                     && (previous_char = getChar(i)) != Paragraph::META_NEWLINE) {
1100                         // Yes, this  ^ is supposed to be "= " not "=="
1101                         ++i;
1102                         while (i < size()
1103                                && previous_char != ' '
1104                                && (temp = getChar(i)) != Paragraph::META_NEWLINE) {
1105                                 ++i;
1106                                 previous_char = temp;
1107                         }
1108                 }
1109         }
1110
1111         return i;
1112 }
1113
1114
1115 Paragraph * Paragraph::depthHook(depth_type depth)
1116 {
1117         Paragraph * newpar = this;
1118
1119         do {
1120                 newpar = newpar->previous();
1121         } while (newpar && newpar->getDepth() > depth);
1122
1123         if (!newpar) {
1124                 if (previous() || getDepth())
1125                         lyxerr << "ERROR (Paragraph::DepthHook): "
1126                                 "no hook." << endl;
1127                 newpar = this;
1128         }
1129
1130         return newpar;
1131 }
1132
1133
1134 Paragraph const * Paragraph::depthHook(depth_type depth) const
1135 {
1136         Paragraph const * newpar = this;
1137
1138         do {
1139                 newpar = newpar->previous();
1140         } while (newpar && newpar->getDepth() > depth);
1141
1142         if (!newpar) {
1143                 if (previous() || getDepth())
1144                         lyxerr << "ERROR (Paragraph::DepthHook): "
1145                                 "no hook." << endl;
1146                 newpar = this;
1147         }
1148
1149         return newpar;
1150 }
1151
1152 Paragraph * Paragraph::outerHook()
1153 {
1154         if(!getDepth())
1155                 return 0;
1156         return depthHook(depth_type(getDepth() - 1));
1157 }
1158
1159 Paragraph const * Paragraph::outerHook() const
1160 {
1161         if(!getDepth())
1162                 return 0;
1163         return depthHook(depth_type(getDepth() - 1));
1164 }
1165
1166 int Paragraph::autoDeleteInsets()
1167 {
1168         int count = 0;
1169         InsetList::size_type index = 0;
1170         while (index < insetlist.size()) {
1171                 if (insetlist[index].inset && insetlist[index].inset->autoDelete()) {
1172                         erase(insetlist[index].pos);
1173                         // Erase() calls to insetlist.erase(&insetlist[index])
1174                         // so index shouldn't be increased.
1175                         ++count;
1176                 } else
1177                         ++index;
1178         }
1179         return count;
1180 }
1181
1182
1183 Paragraph::inset_iterator
1184 Paragraph::InsetIterator(Paragraph::size_type pos)
1185 {
1186         InsetTable search_inset(pos, 0);
1187         InsetList::iterator it = lower_bound(insetlist.begin(),
1188                                              insetlist.end(),
1189                                              search_inset, Pimpl::matchIT());
1190         return inset_iterator(it);
1191 }
1192
1193
1194 // returns -1 if inset not found
1195 int Paragraph::getPositionOfInset(Inset * inset) const
1196 {
1197         // Find the entry.
1198         for (InsetList::const_iterator cit = insetlist.begin();
1199              cit != insetlist.end(); ++cit) {
1200                 if (cit->inset == inset) {
1201                         return cit->pos;
1202                 }
1203         }
1204         if (inset == bibkey)
1205                 return 0;
1206
1207         return -1;
1208 }
1209
1210
1211 Paragraph * Paragraph::TeXOnePar(Buffer const * buf,
1212                                        BufferParams const & bparams,
1213                                        ostream & os, TexRow & texrow,
1214                                        bool moving_arg)
1215 {
1216         lyxerr[Debug::LATEX] << "TeXOnePar...     " << this << endl;
1217         LyXLayout const & style =
1218                 textclasslist.Style(bparams.textclass,
1219                                     layout);
1220
1221         bool further_blank_line = false;
1222
1223         if (params().startOfAppendix()) {
1224                 os << "\\appendix\n";
1225                 texrow.newline();
1226         }
1227
1228         if (!params().spacing().isDefault()
1229             && (!previous() || !previous()->hasSameLayout(this))) {
1230                 os << params().spacing().writeEnvirBegin() << "\n";
1231                 texrow.newline();
1232         }
1233
1234         if (tex_code_break_column && style.isCommand()){
1235                 os << '\n';
1236                 texrow.newline();
1237         }
1238
1239         if (params().pagebreakTop()) {
1240                 os << "\\newpage";
1241                 further_blank_line = true;
1242         }
1243         if (params().spaceTop().kind() != VSpace::NONE) {
1244                 os << params().spaceTop().asLatexCommand(bparams);
1245                 further_blank_line = true;
1246         }
1247
1248         if (params().lineTop()) {
1249                 os << "\\lyxline{\\" << getFont(bparams, 0).latexSize() << '}'
1250                    << "\\vspace{-1\\parskip}";
1251                 further_blank_line = true;
1252         }
1253
1254         if (further_blank_line){
1255                 os << '\n';
1256                 texrow.newline();
1257         }
1258
1259         Language const * language = getParLanguage(bparams);
1260         Language const * doc_language = bparams.language;
1261         Language const * previous_language = previous_
1262                 ? previous_->getParLanguage(bparams) : doc_language;
1263         if (language == ignore_language || language == inherit_language)
1264                 lyxerr << "1:" << language->lang() << endl;
1265         if (language->babel() != doc_language->babel() &&
1266             language->babel() != previous_language->babel()) {
1267                 os << subst(lyxrc.language_command_begin, "$$lang",
1268                             language->babel())
1269                    << endl;
1270                 texrow.newline();
1271         }
1272
1273         if (bparams.inputenc == "auto" &&
1274             language->encoding() != previous_language->encoding())
1275         {
1276                 os << "\\inputencoding{"
1277                    << language->encoding()->LatexName()
1278                    << "}" << endl;
1279                 texrow.newline();
1280         }
1281
1282         switch (style.latextype) {
1283         case LATEX_COMMAND:
1284                 os << '\\'
1285                    << style.latexname()
1286                    << style.latexparam();
1287                 break;
1288         case LATEX_ITEM_ENVIRONMENT:
1289                 if (bibkey) {
1290                         bibkey->latex(buf, os, false, false);
1291                 } else
1292                         os << "\\item ";
1293                 break;
1294         case LATEX_LIST_ENVIRONMENT:
1295                 os << "\\item ";
1296                 break;
1297         default:
1298                 break;
1299         }
1300
1301         bool need_par = simpleTeXOnePar(buf, bparams, os, texrow, moving_arg);
1302
1303         // Make sure that \\par is done with the font of the last
1304         // character if this has another size as the default.
1305         // This is necessary because LaTeX (and LyX on the screen)
1306         // calculates the space between the baselines according
1307         // to this font. (Matthias)
1308         //
1309         // Is this really needed ? (Dekel)
1310         // We do not need to use to change the font for the last paragraph
1311         // or for a command.
1312         LyXFont font = getFont(bparams, size() - 1);
1313
1314         bool is_command = textclasslist.Style(bparams.textclass,
1315                                               getLayout()).isCommand();
1316         if (style.resfont.size() != font.size() && next_ && !is_command) {
1317                 if (!need_par)
1318                         os << "{";
1319                 os << "\\" << font.latexSize() << " \\par}";
1320         } else if (need_par) {
1321                 os << "\\par}";
1322         } else if (is_command)
1323                 os << "}";
1324
1325         if (language->babel() != doc_language->babel() &&
1326             (!next_ ||
1327              next_->getParLanguage(bparams)->babel() != language->babel()))
1328         {
1329                 os << endl
1330                    << subst(lyxrc.language_command_end, "$$lang",
1331                             doc_language->babel());
1332         }
1333
1334         switch (style.latextype) {
1335         case LATEX_ITEM_ENVIRONMENT:
1336         case LATEX_LIST_ENVIRONMENT:
1337                 if (next_ && (params().depth() < next_->params().depth())) {
1338                         os << '\n';
1339                         texrow.newline();
1340                 }
1341                 break;
1342         case LATEX_ENVIRONMENT:
1343                 // if its the last paragraph of the current environment
1344                 // skip it otherwise fall through
1345                 if (next_
1346                     && (next_->layout != layout
1347                         || next_->params().depth() != params().depth()))
1348                         break;
1349         default:
1350                 // we don't need it for the last paragraph!!!
1351                 // or for tables in floats
1352                 //   -- effectively creates a \par where there isn't one which
1353                 //      breaks a \subfigure or \subtable.
1354                 if (next_) {
1355                         os << '\n';
1356                         texrow.newline();
1357                 }
1358         }
1359
1360         further_blank_line = false;
1361         if (params().lineBottom()) {
1362                 os << "\\lyxline{\\" << getFont(bparams,
1363                                                 size() - 1).latexSize() << '}';
1364                 further_blank_line = true;
1365         }
1366
1367         if (params().spaceBottom().kind() != VSpace::NONE) {
1368                 os << params().spaceBottom().asLatexCommand(bparams);
1369                 further_blank_line = true;
1370         }
1371
1372         if (params().pagebreakBottom()) {
1373                 os << "\\newpage";
1374                 further_blank_line = true;
1375         }
1376
1377         if (further_blank_line){
1378                 os << '\n';
1379                 texrow.newline();
1380         }
1381
1382         if (!params().spacing().isDefault()
1383             && (!next_ || !next_->hasSameLayout(this))) {
1384                 os << params().spacing().writeEnvirEnd() << "\n";
1385                 texrow.newline();
1386         }
1387
1388         // we don't need it for the last paragraph!!!
1389         if (next_) {
1390                 os << '\n';
1391                 texrow.newline();
1392         }
1393
1394         lyxerr[Debug::LATEX] << "TeXOnePar...done " << next_ << endl;
1395         return next_;
1396 }
1397
1398
1399 // This one spits out the text of the paragraph
1400 bool Paragraph::simpleTeXOnePar(Buffer const * buf,
1401                                    BufferParams const & bparams,
1402                                    ostream & os, TexRow & texrow,
1403                                    bool moving_arg)
1404 {
1405         lyxerr[Debug::LATEX] << "SimpleTeXOnePar...     " << this << endl;
1406
1407         bool return_value = false;
1408
1409         LyXLayout const & style =
1410                 textclasslist.Style(bparams.textclass,
1411                                     getLayout());
1412         LyXFont basefont;
1413
1414         // Maybe we have to create a optional argument.
1415         size_type main_body;
1416         if (style.labeltype != LABEL_MANUAL)
1417                 main_body = 0;
1418         else
1419                 main_body = beginningOfMainBody();
1420
1421         int column = 0;
1422
1423         if (main_body > 0) {
1424                 os << '[';
1425                 ++column;
1426                 basefont = getFont(bparams, -2); // Get label font
1427         } else {
1428                 basefont = getFont(bparams, -1); // Get layout font
1429         }
1430
1431         if (main_body >= 0
1432             && !pimpl_->size()) {
1433                 if (style.isCommand()) {
1434                         os << '{';
1435                         ++column;
1436                 }
1437         }
1438
1439         moving_arg |= style.needprotect;
1440
1441         // Which font is currently active?
1442         LyXFont running_font(basefont);
1443         // Do we have an open font change?
1444         bool open_font = false;
1445
1446         texrow.start(this, 0);
1447
1448         for (size_type i = 0; i < size(); ++i) {
1449                 ++column;
1450                 // First char in paragraph or after label?
1451                 if (i == main_body) {
1452                         if (main_body > 0) {
1453                                 if (open_font) {
1454                                         column += running_font.latexWriteEndChanges(os, basefont, basefont);
1455                                         open_font = false;
1456                                 }
1457                                 basefont = getFont(bparams, -1); // Now use the layout font
1458                                 running_font = basefont;
1459                                 os << ']';
1460                                 ++column;
1461                         }
1462                         if (style.isCommand()) {
1463                                 os << '{';
1464                                 ++column;
1465                         }
1466
1467                         if (params().noindent()) {
1468                                 os << "\\noindent ";
1469                                 column += 10;
1470                         }
1471                         switch (params().align()) {
1472                         case LYX_ALIGN_NONE:
1473                         case LYX_ALIGN_BLOCK:
1474                         case LYX_ALIGN_LAYOUT:
1475                         case LYX_ALIGN_SPECIAL:
1476                                 break;
1477                         case LYX_ALIGN_LEFT:
1478                                 if (getParLanguage(bparams)->babel() != "hebrew") {
1479                                         os << "\\begin{flushleft}";
1480                                         column+= 17;
1481                                 } else {
1482                                         os << "\\begin{flushright}";
1483                                         column+= 18;
1484                                 }
1485                                 break;
1486                         case LYX_ALIGN_RIGHT:
1487                                 if (getParLanguage(bparams)->babel() != "hebrew") {
1488                                         os << "\\begin{flushright}";
1489                                         column+= 18;
1490                                 } else {
1491                                         os << "\\begin{flushleft}";
1492                                         column+= 17;
1493                                 }
1494                                 break;
1495                         case LYX_ALIGN_CENTER:
1496                                 os << "\\begin{center}";
1497                                 column+= 14;
1498                                 break;
1499                         }
1500                 }
1501
1502                 value_type c = getChar(i);
1503
1504                 // Fully instantiated font
1505                 LyXFont font = getFont(bparams, i);
1506
1507                 LyXFont last_font = running_font;
1508
1509                 // Spaces at end of font change are simulated to be
1510                 // outside font change, i.e. we write "\textXX{text} "
1511                 // rather than "\textXX{text }". (Asger)
1512                 if (open_font && c == ' ' && i <= size() - 2
1513                     && !getFont(bparams, i + 1).equalExceptLatex(running_font)
1514                     && !getFont(bparams, i + 1).equalExceptLatex(font)) {
1515                         font = getFont(bparams, i + 1);
1516                 }
1517                 // We end font definition before blanks
1518                 if (!font.equalExceptLatex(running_font) && open_font) {
1519                         column += running_font.latexWriteEndChanges(os,
1520                                                                     basefont,
1521                                                                     (i == main_body-1) ? basefont : font);
1522                         running_font = basefont;
1523                         open_font = false;
1524                 }
1525
1526                 // Blanks are printed before start of fontswitch
1527                 if (c == ' ') {
1528                         // Do not print the separation of the optional argument
1529                         if (i != main_body - 1) {
1530                                 pimpl_->simpleTeXBlanks(os, texrow, i,
1531                                                        column, font, style);
1532                         }
1533                 }
1534
1535                 // Do we need to change font?
1536                 if (!font.equalExceptLatex(running_font)
1537                     && i != main_body-1) {
1538                         column += font.latexWriteStartChanges(os, basefont,
1539                                                               last_font);
1540                         running_font = font;
1541                         open_font = true;
1542                 }
1543
1544                 if (c == Paragraph::META_NEWLINE) {
1545                         // newlines are handled differently here than
1546                         // the default in SimpleTeXSpecialChars().
1547                         if (!style.newline_allowed
1548 #ifndef NO_LATEX
1549                             || font.latex() == LyXFont::ON
1550 #endif
1551                                 ) {
1552                                 os << '\n';
1553                         } else {
1554                                 if (open_font) {
1555                                         column += running_font.latexWriteEndChanges(os, basefont, basefont);
1556                                         open_font = false;
1557                                 }
1558                                 basefont = getFont(bparams, -1);
1559                                 running_font = basefont;
1560                                 if (font.family() ==
1561                                     LyXFont::TYPEWRITER_FAMILY) {
1562                                         os << "~";
1563                                 }
1564                                 if (moving_arg)
1565                                         os << "\\protect ";
1566                                 os << "\\\\\n";
1567                         }
1568                         texrow.newline();
1569                         texrow.start(this, i + 1);
1570                         column = 0;
1571                 } else {
1572                         pimpl_->simpleTeXSpecialChars(buf, bparams,
1573                                                       os, texrow, moving_arg,
1574                                                       font, running_font,
1575                                                       basefont, open_font,
1576                                                       style, i, column, c);
1577                 }
1578         }
1579
1580         // If we have an open font definition, we have to close it
1581         if (open_font) {
1582 #ifdef FIXED_LANGUAGE_END_DETECTION
1583                 if (next_) {
1584                         running_font
1585                                 .latexWriteEndChanges(os, basefont,
1586                                                       next_->getFont(bparams,
1587                                                       0));
1588                 } else {
1589                         running_font.latexWriteEndChanges(os, basefont,
1590                                                           basefont);
1591                 }
1592 #else
1593 #ifdef WITH_WARNINGS
1594 #warning For now we ALWAYS have to close the foreign font settings if they are
1595 #warning there as we start another \selectlanguage with the next paragraph if
1596 #warning we are in need of this. This should be fixed sometime (Jug)
1597 #endif
1598                 running_font.latexWriteEndChanges(os, basefont,  basefont);
1599 #endif
1600         }
1601
1602         // Needed if there is an optional argument but no contents.
1603         if (main_body > 0 && main_body == size()) {
1604                 os << "]~";
1605                 return_value = false;
1606         }
1607
1608         switch (params().align()) {
1609         case LYX_ALIGN_NONE:
1610         case LYX_ALIGN_BLOCK:
1611         case LYX_ALIGN_LAYOUT:
1612         case LYX_ALIGN_SPECIAL:
1613                 break;
1614         case LYX_ALIGN_LEFT:
1615                 if (getParLanguage(bparams)->babel() != "hebrew") {
1616                         os << "\\end{flushleft}";
1617                         column+= 15;
1618                 } else {
1619                         os << "\\end{flushright}";
1620                         column+= 16;
1621                 }
1622                 break;
1623         case LYX_ALIGN_RIGHT:
1624                 if (getParLanguage(bparams)->babel() != "hebrew") {
1625                         os << "\\end{flushright}";
1626                         column+= 16;
1627                 } else {
1628                         os << "\\end{flushleft}";
1629                         column+= 15;
1630                 }
1631                 break;
1632         case LYX_ALIGN_CENTER:
1633                 os << "\\end{center}";
1634                 column+= 12;
1635                 break;
1636         }
1637
1638         lyxerr[Debug::LATEX] << "SimpleTeXOnePar...done " << this << endl;
1639         return return_value;
1640 }
1641
1642
1643 bool Paragraph::linuxDocConvertChar(char c, string & sgml_string)
1644 {
1645         bool retval = false;
1646         switch (c) {
1647         case Paragraph::META_HFILL:
1648                 sgml_string.erase();
1649                 break;
1650         case Paragraph::META_NEWLINE:
1651                 sgml_string = '\n';
1652                 break;
1653         case '&':
1654                 sgml_string = "&amp;";
1655                 break;
1656         case '<':
1657                 sgml_string = "&lt;";
1658                 break;
1659         case '>':
1660                 sgml_string = "&gt;";
1661                 break;
1662         case '$':
1663                 sgml_string = "&dollar;";
1664                 break;
1665         case '#':
1666                 sgml_string = "&num;";
1667                 break;
1668         case '%':
1669                 sgml_string = "&percnt;";
1670                 break;
1671         case '[':
1672                 sgml_string = "&lsqb;";
1673                 break;
1674         case ']':
1675                 sgml_string = "&rsqb;";
1676                 break;
1677         case '{':
1678                 sgml_string = "&lcub;";
1679                 break;
1680         case '}':
1681                 sgml_string = "&rcub;";
1682                 break;
1683         case '~':
1684                 sgml_string = "&tilde;";
1685                 break;
1686         case '"':
1687                 sgml_string = "&quot;";
1688                 break;
1689         case '\\':
1690                 sgml_string = "&bsol;";
1691                 break;
1692         case ' ':
1693                 retval = true;
1694                 sgml_string = ' ';
1695                 break;
1696         case '\0': // Ignore :-)
1697                 sgml_string.erase();
1698                 break;
1699         default:
1700                 sgml_string = c;
1701                 break;
1702         }
1703         return retval;
1704 }
1705
1706
1707 Paragraph * Paragraph::TeXEnvironment(Buffer const * buf,
1708                                             BufferParams const & bparams,
1709                                             ostream & os, TexRow & texrow)
1710 {
1711         lyxerr[Debug::LATEX] << "TeXEnvironment...     " << this << endl;
1712
1713         LyXLayout const & style =
1714                 textclasslist.Style(bparams.textclass,
1715                                     layout);
1716
1717         if (style.isEnvironment()){
1718                 if (style.latextype == LATEX_LIST_ENVIRONMENT) {
1719                         os << "\\begin{" << style.latexname() << "}{"
1720                            << params().labelWidthString() << "}\n";
1721                 } else if (style.labeltype == LABEL_BIBLIO) {
1722                         // ale970405
1723                         os << "\\begin{" << style.latexname() << "}{"
1724                            <<  bibitemWidest(buf)
1725                            << "}\n";
1726                 } else if (style.latextype == LATEX_ITEM_ENVIRONMENT) {
1727                         os << "\\begin{" << style.latexname() << '}'
1728                            << style.latexparam() << '\n';
1729                 } else
1730                         os << "\\begin{" << style.latexname() << '}'
1731                            << style.latexparam() << '\n';
1732                 texrow.newline();
1733         }
1734         Paragraph * par = this;
1735         do {
1736                 par = par->TeXOnePar(buf, bparams,
1737                                      os, texrow, false);
1738
1739                 if (par && par->params().depth() > params().depth()) {
1740                         if (textclasslist.Style(bparams.textclass,
1741                                                 par->layout).isParagraph()
1742                             // Thinko!
1743                             // How to handle this? (Lgb)
1744                             //&& !suffixIs(os, "\n\n")
1745                                 ) {
1746                                 // There should be at least one '\n' already
1747                                 // but we need there to be two for Standard
1748                                 // paragraphs that are depth-increment'ed to be
1749                                 // output correctly.  However, tables can
1750                                 // also be paragraphs so don't adjust them.
1751                                 // ARRae
1752                                 // Thinkee:
1753                                 // Will it ever harm to have one '\n' too
1754                                 // many? i.e. that we sometimes will have
1755                                 // three in a row. (Lgb)
1756                                 os << '\n';
1757                                 texrow.newline();
1758                         }
1759                         par = par->pimpl_->TeXDeeper(buf, bparams, os, texrow);
1760                 }
1761         } while (par
1762                  && par->layout == layout
1763                  && par->params().depth() == params().depth());
1764
1765         if (style.isEnvironment()) {
1766                 os << "\\end{" << style.latexname() << "}\n";
1767         }
1768
1769         lyxerr[Debug::LATEX] << "TeXEnvironment...done " << par << endl;
1770         return par;  // ale970302
1771 }
1772
1773
1774 bool Paragraph::isHfill(size_type pos) const
1775 {
1776         return IsHfillChar(getChar(pos));
1777 }
1778
1779
1780 bool Paragraph::isInset(size_type pos) const
1781 {
1782         return IsInsetChar(getChar(pos));
1783 }
1784
1785
1786 bool Paragraph::isNewline(size_type pos) const
1787 {
1788         return pos >= 0 && IsNewlineChar(getChar(pos));
1789 }
1790
1791
1792 bool Paragraph::isSeparator(size_type pos) const
1793 {
1794         return IsSeparatorChar(getChar(pos));
1795 }
1796
1797
1798 bool Paragraph::isLineSeparator(size_type pos) const
1799 {
1800         return IsLineSeparatorChar(getChar(pos));
1801 }
1802
1803
1804 bool Paragraph::isKomma(size_type pos) const
1805 {
1806         return IsKommaChar(getChar(pos));
1807 }
1808
1809
1810 /// Used by the spellchecker
1811 bool Paragraph::isLetter(Paragraph::size_type pos) const
1812 {
1813         value_type const c = getChar(pos);
1814         if (IsLetterChar(c))
1815                 return true;
1816         // '\0' is not a letter, allthough every string contains "" (below)
1817         if (c == '\0')
1818                 return false;
1819         // We want to pass the ' and escape chars to ispell
1820         string const extra = lyxrc.isp_esc_chars + '\'';
1821         char ch[2] = { c, 0 };
1822         return contains(extra, ch);
1823 }
1824
1825
1826 bool Paragraph::isWord(size_type pos ) const
1827 {
1828         return IsWordChar(getChar(pos)) ;
1829 }
1830
1831
1832 Language const *
1833 Paragraph::getParLanguage(BufferParams const & bparams) const
1834 {
1835         if (size() > 0) {
1836                 Language const * lang = getFirstFontSettings().language();
1837 #warning We should make this somewhat better, any ideas? (Jug)
1838                 if (lang == inherit_language || lang == ignore_language)
1839                         lang = bparams.language;
1840                 return lang;
1841         } else if (previous_)
1842                 return previous_->getParLanguage(bparams);
1843         else
1844                 return bparams.language;
1845 }
1846
1847
1848 bool Paragraph::isRightToLeftPar(BufferParams const & bparams) const
1849 {
1850         return lyxrc.rtl_support
1851                 && getParLanguage(bparams)->RightToLeft();
1852 }
1853
1854
1855 void Paragraph::changeLanguage(BufferParams const & bparams,
1856                                   Language const * from, Language const * to)
1857 {
1858         for (size_type i = 0; i < size(); ++i) {
1859                 LyXFont font = getFontSettings(bparams, i);
1860                 if (font.language() == from) {
1861                         font.setLanguage(to);
1862                         setFont(i, font);
1863                 }
1864         }
1865 }
1866
1867
1868 bool Paragraph::isMultiLingual(BufferParams const & bparams)
1869 {
1870         Language const * doc_language = bparams.language;
1871         for (Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
1872              cit != pimpl_->fontlist.end(); ++cit)
1873                 if (cit->font().language() != inherit_language &&
1874                         cit->font().language() != ignore_language &&
1875                         cit->font().language() != doc_language)
1876                         return true;
1877         return false;
1878 }
1879
1880
1881 // Convert the paragraph to a string.
1882 // Used for building the table of contents
1883 string const Paragraph::asString(Buffer const * buffer, bool label)
1884 {
1885         BufferParams const & bparams = buffer->params;
1886         string s;
1887         if (label && !params().labelString().empty())
1888                 s += params().labelString() + ' ';
1889         string::size_type const len = s.size();
1890
1891         for (Paragraph::size_type i = 0; i < size(); ++i) {
1892                 value_type c = getChar(i);
1893                 if (IsPrintable(c))
1894                         s += c;
1895                 else if (c == META_INSET &&
1896                          getInset(i)->lyxCode() == Inset::MATH_CODE) {
1897                         ostringstream ost;
1898                         getInset(i)->ascii(buffer, ost);
1899                         s += subst(ost.str().c_str(),'\n',' ');
1900                 }
1901         }
1902
1903         if (isRightToLeftPar(bparams))
1904                 reverse(s.begin() + len,s.end());
1905
1906         return s;
1907 }
1908
1909
1910 string const Paragraph::asString(Buffer const * buffer,
1911                             Paragraph::size_type beg,
1912                             Paragraph::size_type end)
1913 {
1914         ostringstream ost;
1915
1916         if (beg == 0 && !params().labelString().empty())
1917                 ost << params().labelString() << ' ';
1918
1919         for (Paragraph::size_type i = beg; i < end; ++i) {
1920                 value_type const c = getUChar(buffer->params, i);
1921                 if (IsPrintable(c))
1922                         ost << c;
1923                 else if (c == META_INSET) {
1924                         getInset(i)->ascii(buffer, ost);
1925                 }
1926         }
1927
1928         return ost.str().c_str();
1929 }
1930
1931
1932 void Paragraph::setInsetOwner(Inset * i)
1933 {
1934         pimpl_->inset_owner = i;
1935         for (InsetList::const_iterator cit = insetlist.begin();
1936              cit != insetlist.end(); ++cit) {
1937                 if (cit->inset)
1938                         cit->inset->setOwner(i);
1939         }
1940 }
1941
1942
1943 void Paragraph::deleteInsetsLyXText(BufferView * bv)
1944 {
1945         // then the insets
1946         for (InsetList::const_iterator cit = insetlist.begin();
1947              cit != insetlist.end(); ++cit) {
1948                 if (cit->inset) {
1949                         if (cit->inset->isTextInset()) {
1950                                 static_cast<UpdatableInset *>
1951                                         (cit->inset)->deleteLyXText(bv, true);
1952                         }
1953                 }
1954         }
1955 }
1956
1957
1958 void Paragraph::resizeInsetsLyXText(BufferView * bv)
1959 {
1960         // then the insets
1961         for (InsetList::const_iterator cit = insetlist.begin();
1962              cit != insetlist.end(); ++cit) {
1963                 if (cit->inset) {
1964                         if (cit->inset->isTextInset()) {
1965                                 static_cast<UpdatableInset *>
1966                                         (cit->inset)->resizeLyXText(bv, true);
1967                         }
1968                 }
1969         }
1970 }
1971
1972
1973 void Paragraph::setContentsFromPar(Paragraph * par)
1974 {
1975         pimpl_->setContentsFromPar(par);
1976 }
1977
1978
1979 Paragraph::size_type Paragraph::size() const
1980 {
1981         return pimpl_->size();
1982 }
1983
1984
1985 Paragraph::value_type
1986 Paragraph::getChar(Paragraph::size_type pos) const
1987 {
1988         return pimpl_->getChar(pos);
1989 }
1990
1991
1992 int Paragraph::id() const
1993 {
1994         return pimpl_->id_;
1995 }
1996
1997
1998 void  Paragraph::id(int id_arg)
1999 {
2000         pimpl_->id_ = id_arg;
2001 }
2002
2003
2004 LyXTextClass::LayoutList::size_type Paragraph::getLayout() const
2005 {
2006         return layout;
2007 }
2008
2009
2010 bool Paragraph::isFirstInSequence() const
2011 {
2012         Paragraph const * dhook = depthHook(getDepth());
2013         return (dhook == this
2014                 || dhook->getLayout() != getLayout()
2015                 || dhook->getDepth() != getDepth());
2016 }
2017
2018
2019 Inset * Paragraph::inInset() const
2020 {
2021         return pimpl_->inset_owner;
2022 }
2023
2024
2025 void Paragraph::clearContents()
2026 {
2027         pimpl_->clear();
2028 }
2029
2030
2031 void Paragraph::setCounter(int i, int v)
2032 {
2033         pimpl_->counter_[i] = v;
2034 }
2035
2036
2037 int Paragraph::getCounter(int i) const
2038 {
2039         return pimpl_->counter_[i];
2040 }
2041
2042
2043 void Paragraph::incCounter(int i)
2044 {
2045         pimpl_->counter_[i]++;
2046 }
2047
2048
2049 void Paragraph::setChar(size_type pos, value_type c)
2050 {
2051         pimpl_->setChar(pos, c);
2052 }
2053
2054
2055 Paragraph::inset_iterator::inset_iterator(Paragraph::InsetList::iterator const & iter)
2056  : it(iter)
2057 {}
2058
2059
2060 Paragraph::inset_iterator Paragraph::inset_iterator_begin()
2061 {
2062         return inset_iterator(insetlist.begin());
2063 }
2064
2065
2066 Paragraph::inset_iterator Paragraph::inset_iterator_end()
2067 {
2068         return inset_iterator(insetlist.end());
2069 }
2070
2071
2072 ParagraphParameters & Paragraph::params()
2073 {
2074         return pimpl_->params;
2075 }
2076
2077
2078 ParagraphParameters const & Paragraph::params() const
2079 {
2080         return pimpl_->params;
2081 }
2082
2083
2084 Paragraph * Paragraph::getParFromID(int id) const
2085 {
2086         return pimpl_->getParFromID(id);
2087 }