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 using lyx::pos_type;
  56 using lyx::layout_type;
  57
  58 int tex_code_break_column = 72;  // needs non-zero initialization. set later.
  59 // this is a bad idea, but how can Paragraph find its buffer to get
  60 // parameters? (JMarc)
  61
  62 extern string bibitemWidest(Buffer const *);
  63
  64 // this is a minibuffer
  65
  66 namespace {
  67
  68 char minibuffer_char;
  69 LyXFont minibuffer_font;
  70 Inset * minibuffer_inset;
  71
  72 } // namespace anon
  73
  74
  75 extern BufferView * current_view;
  76
  77
  78 Paragraph::Paragraph()
  79         : layout(0), pimpl_(new Paragraph::Pimpl(this))
  80 {
  81         for (int i = 0; i < 10; ++i)
  82                 setCounter(i, 0);
  83         next_ = 0;
  84         previous_ = 0;
  85         enumdepth = 0;
  86         itemdepth = 0;
  87         bibkey = 0; // ale970302
  88         clear();
  89 }
  90
  91
  92 // This constructor inserts the new paragraph in a list.
  93 Paragraph::Paragraph(Paragraph * par)
  94         : layout(0), pimpl_(new Paragraph::Pimpl(this))
  95 {
  96         for (int i = 0; i < 10; ++i)
  97                 setCounter(i, 0);
  98         enumdepth = 0;
  99         itemdepth = 0;
 100
 101         // double linked list begin
 102         next_ = par->next_;
 103         if (next_)
 104                 next_->previous_ = this;
 105         previous_ = par;
 106         previous_->next_ = this;
 107         // end
 108
 109         bibkey = 0; // ale970302
 110
 111         clear();
 112 }
 113
 114
 115 Paragraph::Paragraph(Paragraph const & lp, bool same_ids)
 116         : layout(0), pimpl_(new Paragraph::Pimpl(*lp.pimpl_, this, same_ids))
 117 {
 118         for (int i = 0; i < 10; ++i)
 119                 setCounter(i, 0);
 120         enumdepth = 0;
 121         itemdepth = 0;
 122         next_     = 0;
 123         previous_ = 0;
 124
 125         // this is because of the dummy layout of the paragraphs that
 126         // follow footnotes
 127         layout = lp.layout;
 128
 129         // ale970302
 130         if (lp.bibkey) {
 131                 bibkey = static_cast<InsetBibKey *>
 132                         (lp.bibkey->clone(*current_view->buffer()));
 133         } else {
 134                 bibkey = 0;
 135         }
 136
 137         // copy everything behind the break-position to the new paragraph
 138         insetlist = lp.insetlist;
 139         for (InsetList::iterator it = insetlist.begin();
 140              it != insetlist.end(); ++it)
 141         {
 142                 it->inset = it->inset->clone(*current_view->buffer(), same_ids);
 143                 // tell the new inset who is the boss now
 144                 it->inset->parOwner(this);
 145         }
 146 }
 147
 148
 149 // the destructor removes the new paragraph from the list
 150 Paragraph::~Paragraph()
 151 {
 152         if (previous_)
 153                 previous_->next_ = next_;
 154         if (next_)
 155                 next_->previous_ = previous_;
 156
 157         for (InsetList::iterator it = insetlist.begin();
 158              it != insetlist.end(); ++it) {
 159                 delete it->inset;
 160         }
 161
 162         // ale970302
 163         delete bibkey;
 164
 165         delete pimpl_;
 166         //
 167         //lyxerr << "Paragraph::paragraph_id = "
 168         //       << Paragraph::paragraph_id << endl;
 169 }
 170
 171
 172 void Paragraph::writeFile(Buffer const * buf, ostream & os,
 173                           BufferParams const & bparams,
 174                           depth_type dth) const
 175 {
 176         // The beginning or end of a deeper (i.e. nested) area?
 177         if (dth != params().depth()) {
 178                 if (params().depth() > dth) {
 179                         while (params().depth() > dth) {
 180                                 os << "\n\\begin_deeper ";
 181                                 ++dth;
 182                         }
 183                 } else {
 184                         while (params().depth() < dth) {
 185                                 os << "\n\\end_deeper ";
 186                                 --dth;
 187                         }
 188                 }
 189         }
 190
 191         // First write the layout
 192         os << "\n\\layout "
 193            << textclasslist.NameOfLayout(bparams.textclass, layout)
 194            << "\n";
 195
 196         // Maybe some vertical spaces.
 197         if (params().spaceTop().kind() != VSpace::NONE)
 198                 os << "\\added_space_top "
 199                    << params().spaceTop().asLyXCommand() << " ";
 200         if (params().spaceBottom().kind() != VSpace::NONE)
 201                 os << "\\added_space_bottom "
 202                    << params().spaceBottom().asLyXCommand() << " ";
 203
 204         // Maybe the paragraph has special spacing
 205         params().spacing().writeFile(os, true);
 206
 207         // The labelwidth string used in lists.
 208         if (!params().labelWidthString().empty())
 209                 os << "\\labelwidthstring "
 210                    << params().labelWidthString() << '\n';
 211
 212         // Lines above or below?
 213         if (params().lineTop())
 214                 os << "\\line_top ";
 215         if (params().lineBottom())
 216                 os << "\\line_bottom ";
 217
 218         // Pagebreaks above or below?
 219         if (params().pagebreakTop())
 220                 os << "\\pagebreak_top ";
 221         if (params().pagebreakBottom())
 222                 os << "\\pagebreak_bottom ";
 223
 224         // Start of appendix?
 225         if (params().startOfAppendix())
 226                 os << "\\start_of_appendix ";
 227
 228         // Noindent?
 229         if (params().noindent())
 230                 os << "\\noindent ";
 231
 232         // Alignment?
 233         if (params().align() != LYX_ALIGN_LAYOUT) {
 234                 int h = 0;
 235                 switch (params().align()) {
 236                 case LYX_ALIGN_LEFT: h = 1; break;
 237                 case LYX_ALIGN_RIGHT: h = 2; break;
 238                 case LYX_ALIGN_CENTER: h = 3; break;
 239                 default: h = 0; break;
 240                 }
 241                 os << "\\align " << string_align[h] << " ";
 242         }
 243
 244         // bibitem  ale970302
 245         if (bibkey)
 246                 bibkey->write(buf, os);
 247
 248         LyXFont font1(LyXFont::ALL_INHERIT, bparams.language);
 249
 250         int column = 0;
 251         for (pos_type i = 0; i < size(); ++i) {
 252                 if (!i) {
 253                         os << "\n";
 254                         column = 0;
 255                 }
 256
 257                 // Write font changes
 258                 LyXFont font2 = getFontSettings(bparams, i);
 259                 if (font2 != font1) {
 260 #ifndef INHERIT_LANGUAGE
 261                         font2.lyxWriteChanges(font1, os);
 262 #else
 263                         font2.lyxWriteChanges(font1, bparams.language, os);
 264 #endif
 265                         column = 0;
 266                         font1 = font2;
 267                 }
 268
 269                 value_type const c = getChar(i);
 270                 switch (c) {
 271                 case META_INSET:
 272                 {
 273                         Inset const * inset = getInset(i);
 274                         if (inset)
 275                                 if (inset->directWrite()) {
 276                                         // international char, let it write
 277                                         // code directly so it's shorter in
 278                                         // the file
 279                                         inset->write(buf, os);
 280                                 } else {
 281                                         os << "\n\\begin_inset ";
 282                                         inset->write(buf, os);
 283                                         os << "\n\\end_inset \n\n";
 284                                         column = 0;
 285                                 }
 286                 }
 287                 break;
 288                 case META_NEWLINE:
 289                         os << "\n\\newline \n";
 290                         column = 0;
 291                         break;
 292                 case META_HFILL:
 293                         os << "\n\\hfill \n";
 294                         column = 0;
 295                         break;
 296                 case '\\':
 297                         os << "\n\\backslash \n";
 298                         column = 0;
 299                         break;
 300                 case '.':
 301                         if (i + 1 < size() && getChar(i + 1) == ' ') {
 302                                 os << ".\n";
 303                                 column = 0;
 304                         } else
 305                                 os << ".";
 306                         break;
 307                 default:
 308                         if ((column > 70 && c == ' ')
 309                             || column > 79) {
 310                                 os << "\n";
 311                                 column = 0;
 312                         }
 313                         // this check is to amend a bug. LyX sometimes
 314                         // inserts '\0' this could cause problems.
 315                         if (c != '\0')
 316                                 os << c;
 317                         else
 318                                 lyxerr << "ERROR (Paragraph::writeFile):"
 319                                         " NULL char in structure." << endl;
 320                         ++column;
 321                         break;
 322                 }
 323         }
 324
 325         // now write the next paragraph
 326         if (next_)
 327                 next_->writeFile(buf, os, bparams, dth);
 328 }
 329
 330
 331 void Paragraph::validate(LaTeXFeatures & features) const
 332 {
 333         BufferParams const & bparams = features.bufferParams();
 334
 335         // check the params.
 336         if (params().lineTop() || params().lineBottom())
 337                 features.require("lyxline");
 338         if (!params().spacing().isDefault())
 339                 features.require("setspace");
 340
 341         // then the layouts
 342         features.useLayout(getLayout());
 343
 344         // then the fonts
 345         Language const * doc_language = bparams.language;
 346
 347         for (Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 348              cit != pimpl_->fontlist.end(); ++cit) {
 349                 if (cit->font().noun() == LyXFont::ON) {
 350                         lyxerr[Debug::LATEX] << "font.noun: "
 351                                              << cit->font().noun()
 352                                              << endl;
 353                         features.require("noun");
 354                         lyxerr[Debug::LATEX] << "Noun enabled. Font: "
 355                                              << cit->font().stateText(0)
 356                                              << endl;
 357                 }
 358                 switch (cit->font().color()) {
 359                 case LColor::none:
 360                 case LColor::inherit:
 361                 case LColor::ignore:
 362                         // probably we should put here all interface colors used for
 363                         // font displaying! For now I just add this ones I know of (Jug)
 364                 case LColor::latex:
 365                 case LColor::note:
 366                         break;
 367                 default:
 368                         features.require("color");
 369                         lyxerr[Debug::LATEX] << "Color enabled. Font: "
 370                                              << cit->font().stateText(0)
 371                                              << endl;
 372                 }
 373
 374                 Language const * language = cit->font().language();
 375                 if (language->babel() != doc_language->babel() &&
 376                     language != ignore_language &&
 377 #ifdef INHERIT_LANGUAGE
 378                     language != inherit_language &&
 379 #endif
 380                     language != latex_language)
 381                 {
 382                         features.useLanguage(language);
 383                         lyxerr[Debug::LATEX] << "Found language "
 384                                              << language->babel() << endl;
 385                 }
 386         }
 387
 388         // then the insets
 389         LyXLayout const & layout =
 390              textclasslist.Style(bparams.textclass, getLayout());
 391
 392         for (InsetList::const_iterator cit = insetlist.begin();
 393              cit != insetlist.end(); ++cit) {
 394                 if (cit->inset) {
 395                         cit->inset->validate(features);
 396                         if (layout.needprotect &&
 397                             cit->inset->lyxCode() == Inset::FOOT_CODE)
 398                                 features.require("NeedLyXFootnoteCode");
 399                 }
 400         }
 401 }
 402
 403
 404 // First few functions needed for cut and paste and paragraph breaking.
 405 void Paragraph::copyIntoMinibuffer(Buffer const & buffer, pos_type pos) const
 406 {
 407         BufferParams bparams = buffer.params;
 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)->clone(buffer);
 415                 } else {
 416                         minibuffer_inset = 0;
 417                         minibuffer_char = ' ';
 418                         // This reflects what GetInset() does (ARRae)
 419                 }
 420         }
 421 }
 422
 423
 424 void Paragraph::cutIntoMinibuffer(BufferParams const & bparams, pos_type pos)
 425 {
 426         minibuffer_char = getChar(pos);
 427         minibuffer_font = getFontSettings(bparams, pos);
 428         minibuffer_inset = 0;
 429         if (minibuffer_char == Paragraph::META_INSET) {
 430                 if (getInset(pos)) {
 431                         minibuffer_inset = getInset(pos);
 432                         // This is a little hack since I want exactly
 433                         // the inset, not just a clone. Otherwise
 434                         // the inset would be deleted when calling Erase(pos)
 435                         // find the entry
 436                         InsetTable search_elem(pos, 0);
 437                         InsetList::iterator it =
 438                                 lower_bound(insetlist.begin(),
 439                                             insetlist.end(),
 440                                             search_elem, Pimpl::matchIT());
 441                         if (it != insetlist.end() && it->pos == pos)
 442                                 it->inset = 0;
 443                         // the inset is not in a paragraph anymore
 444                         minibuffer_inset->parOwner(0);
 445                 } else {
 446                         minibuffer_inset = 0;
 447                         minibuffer_char = ' ';
 448                         // This reflects what GetInset() does (ARRae)
 449                 }
 450
 451         }
 452
 453         // Erase(pos); now the caller is responsible for that.
 454 }
 455
 456
 457 bool Paragraph::insertFromMinibuffer(pos_type pos)
 458 {
 459         if (minibuffer_char == Paragraph::META_INSET) {
 460                 if (!insetAllowed(minibuffer_inset->lyxCode())) {
 461                         return false;
 462                 }
 463                 insertInset(pos, minibuffer_inset, minibuffer_font);
 464         } else {
 465                 LyXFont f = minibuffer_font;
 466                 if (!checkInsertChar(f)) {
 467                         return false;
 468                 }
 469                 insertChar(pos, minibuffer_char, f);
 470         }
 471         return true;
 472 }
 473
 474 // end of minibuffer
 475
 476
 477
 478 void Paragraph::clear()
 479 {
 480         params().clear();
 481
 482         layout = 0;
 483         bibkey = 0;
 484 }
 485
 486
 487 void Paragraph::erase(pos_type pos)
 488 {
 489         pimpl_->erase(pos);
 490 }
 491
 492
 493 bool Paragraph::checkInsertChar(LyXFont & font)
 494 {
 495         if (pimpl_->inset_owner)
 496                 return pimpl_->inset_owner->checkInsertChar(font);
 497         return true;
 498 }
 499
 500
 501 void Paragraph::insertChar(pos_type pos, Paragraph::value_type c)
 502 {
 503         LyXFont const f(LyXFont::ALL_INHERIT);
 504         insertChar(pos, c, f);
 505 }
 506
 507
 508 void Paragraph::insertChar(pos_type pos, Paragraph::value_type c,
 509                            LyXFont const & font)
 510 {
 511         pimpl_->insertChar(pos, c, font);
 512 }
 513
 514
 515 void Paragraph::insertInset(pos_type pos, Inset * inset)
 516 {
 517         LyXFont const f(LyXFont::ALL_INHERIT);
 518         insertInset(pos, inset, f);
 519 }
 520
 521
 522 void Paragraph::insertInset(pos_type pos, Inset * inset, LyXFont const & font)
 523 {
 524         pimpl_->insertInset(pos, inset, font);
 525 }
 526
 527
 528 bool Paragraph::insetAllowed(Inset::Code code)
 529 {
 530         //lyxerr << "Paragraph::InsertInsetAllowed" << endl;
 531
 532         if (pimpl_->inset_owner)
 533                 return pimpl_->inset_owner->insetAllowed(code);
 534         return true;
 535 }
 536
 537
 538 Inset * Paragraph::getInset(pos_type pos)
 539 {
 540         lyx::Assert(pos < size());
 541
 542         // Find the inset.
 543         InsetTable search_inset(pos, 0);
 544         InsetList::iterator it = lower_bound(insetlist.begin(),
 545                                              insetlist.end(),
 546                                              search_inset, Pimpl::matchIT());
 547         if (it != insetlist.end() && it->pos == pos)
 548                 return it->inset;
 549
 550         lyxerr << "ERROR (Paragraph::getInset): "
 551                 "Inset does not exist: " << pos << endl;
 552         //::raise(SIGSTOP);
 553
 554         // text[pos] = ' '; // WHY!!! does this set the pos to ' '????
 555         // Did this commenting out introduce a bug? So far I have not
 556         // see any, please enlighten me. (Lgb)
 557         // My guess is that since the inset does not exist, we might
 558         // as well replace it with a space to prevent craches. (Asger)
 559         return 0;
 560 }
 561
 562
 563 Inset const * Paragraph::getInset(pos_type pos) const
 564 {
 565         lyx::Assert(pos < size());
 566
 567         // Find the inset.
 568         InsetTable search_inset(pos, 0);
 569         InsetList::const_iterator cit = lower_bound(insetlist.begin(),
 570                                                     insetlist.end(),
 571                                                     search_inset, Pimpl::matchIT());
 572         if (cit != insetlist.end() && cit->pos == pos)
 573                 return cit->inset;
 574
 575         lyxerr << "ERROR (Paragraph::GetInset): "
 576                 "Inset does not exist: " << pos << endl;
 577         //::raise(SIGSTOP);
 578         //text[pos] = ' '; // WHY!!! does this set the pos to ' '????
 579         // Did this commenting out introduce a bug? So far I have not
 580         // see any, please enlighten me. (Lgb)
 581         // My guess is that since the inset does not exist, we might
 582         // as well replace it with a space to prevent craches. (Asger)
 583         return 0;
 584 }
 585
 586
 587 // Gets uninstantiated font setting at position.
 588 LyXFont const Paragraph::getFontSettings(BufferParams const & bparams,
 589                                          pos_type pos) const
 590 {
 591         lyx::Assert(pos <= size());
 592
 593         Pimpl::FontTable search_font(pos, LyXFont());
 594         Pimpl::FontList::const_iterator cit = lower_bound(pimpl_->fontlist.begin(),
 595                                                    pimpl_->fontlist.end(),
 596                                                    search_font, Pimpl::matchFT());
 597         LyXFont retfont;
 598         if (cit != pimpl_->fontlist.end()) {
 599                 retfont = cit->font();
 600         } else if (pos == size() && size()) {
 601                 retfont = getFontSettings(bparams, pos - 1);
 602         } else
 603                 retfont = LyXFont(LyXFont::ALL_INHERIT, getParLanguage(bparams));
 604 #ifdef INHERIT_LANGUAGE
 605         if (retfont.language() == inherit_language)
 606                 retfont.setLanguage(bparams.language);
 607 #endif
 608
 609         return retfont;
 610 }
 611
 612
 613 // Gets uninstantiated font setting at position 0
 614 LyXFont const Paragraph::getFirstFontSettings() const
 615 {
 616         if (size() > 0 && !pimpl_->fontlist.empty())
 617                 return pimpl_->fontlist[0].font();
 618
 619         return LyXFont(LyXFont::ALL_INHERIT);
 620 }
 621
 622
 623 // Gets the fully instantiated font at a given position in a paragraph
 624 // This is basically the same function as LyXText::GetFont() in text2.C.
 625 // The difference is that this one is used for generating the LaTeX file,
 626 // and thus cosmetic "improvements" are disallowed: This has to deliver
 627 // the true picture of the buffer. (Asger)
 628 // If position is -1, we get the layout font of the paragraph.
 629 // If position is -2, we get the font of the manual label of the paragraph.
 630 LyXFont const Paragraph::getFont(BufferParams const & bparams,
 631                                  pos_type pos) const
 632 {
 633         lyx::Assert(pos >= 0);
 634
 635         LyXLayout const & layout =
 636                 textclasslist.Style(bparams.textclass,
 637                                     getLayout());
 638         pos_type main_body = 0;
 639         if (layout.labeltype == LABEL_MANUAL)
 640                 main_body = beginningOfMainBody();
 641
 642         LyXFont layoutfont;
 643         if (pos < main_body)
 644                 layoutfont = layout.labelfont;
 645         else
 646                 layoutfont = layout.font;
 647
 648         LyXFont tmpfont = getFontSettings(bparams, pos);
 649 #ifndef INHERIT_LANGUAGE
 650         tmpfont.realize(layoutfont);
 651 #else
 652         tmpfont.realize(layoutfont, bparams.language);
 653 #endif
 654
 655         return pimpl_->realizeFont(tmpfont, bparams);
 656 }
 657
 658
 659 LyXFont const Paragraph::getLabelFont(BufferParams const & bparams) const
 660 {
 661         LyXLayout const & layout =
 662                 textclasslist.Style(bparams.textclass, getLayout());
 663
 664         LyXFont tmpfont = layout.labelfont;
 665         tmpfont.setLanguage(getParLanguage(bparams));
 666
 667         return pimpl_->realizeFont(tmpfont, bparams);
 668 }
 669
 670
 671 LyXFont const Paragraph::getLayoutFont(BufferParams const & bparams) const
 672 {
 673         LyXLayout const & layout =
 674                 textclasslist.Style(bparams.textclass,
 675                                     getLayout());
 676
 677         LyXFont tmpfont = layout.font;
 678         tmpfont.setLanguage(getParLanguage(bparams));
 679
 680         return pimpl_->realizeFont(tmpfont, bparams);
 681 }
 682
 683
 684 /// Returns the height of the highest font in range
 685 LyXFont::FONT_SIZE
 686 Paragraph::highestFontInRange(pos_type startpos, pos_type endpos,
 687                               LyXFont::FONT_SIZE const def_size) const
 688 {
 689         if (pimpl_->fontlist.empty())
 690                 return def_size;
 691
 692         LyXFont::FONT_SIZE maxsize = LyXFont::SIZE_TINY;
 693         Pimpl::FontTable end_search(endpos, LyXFont());
 694         Pimpl::FontList::const_iterator end_it =
 695                 lower_bound(pimpl_->fontlist.begin(),
 696                             pimpl_->fontlist.end(),
 697                             end_search, Pimpl::matchFT());
 698         if (end_it != pimpl_->fontlist.end())
 699                 ++end_it;
 700
 701         Pimpl::FontTable start_search(startpos, LyXFont());
 702         Pimpl::FontList::const_iterator cit =
 703                 lower_bound(pimpl_->fontlist.begin(),
 704                             pimpl_->fontlist.end(),
 705                             start_search, Pimpl::matchFT());
 706
 707         for (; cit != end_it; ++cit) {
 708                 LyXFont::FONT_SIZE size = cit->font().size();
 709                 if (size == LyXFont::INHERIT_SIZE)
 710                         size = def_size;
 711                 if (size > maxsize && size <= LyXFont::SIZE_HUGER)
 712                         maxsize = size;
 713         }
 714         return maxsize;
 715 }
 716
 717
 718 Paragraph::value_type
 719 Paragraph::getUChar(BufferParams const & bparams, pos_type pos) const
 720 {
 721         value_type c = getChar(pos);
 722         if (!lyxrc.rtl_support)
 723                 return c;
 724
 725         value_type uc = c;
 726         switch (c) {
 727         case '(':
 728                 uc = ')';
 729                 break;
 730         case ')':
 731                 uc = '(';
 732                 break;
 733         case '[':
 734                 uc = ']';
 735                 break;
 736         case ']':
 737                 uc = '[';
 738                 break;
 739         case '{':
 740                 uc = '}';
 741                 break;
 742         case '}':
 743                 uc = '{';
 744                 break;
 745         case '<':
 746                 uc = '>';
 747                 break;
 748         case '>':
 749                 uc = '<';
 750                 break;
 751         }
 752         if (uc != c && getFontSettings(bparams, pos).isRightToLeft())
 753                 return uc;
 754         else
 755                 return c;
 756 }
 757
 758
 759 void Paragraph::setFont(pos_type pos, LyXFont const & font)
 760 {
 761         lyx::Assert(pos <= size());
 762
 763         // First, reduce font against layout/label font
 764         // Update: The SetCharFont() routine in text2.C already
 765         // reduces font, so we don't need to do that here. (Asger)
 766         // No need to simplify this because it will disappear
 767         // in a new kernel. (Asger)
 768         // Next search font table
 769
 770         Pimpl::FontTable search_font(pos, LyXFont());
 771         Pimpl::FontList::iterator it = lower_bound(pimpl_->fontlist.begin(),
 772                                             pimpl_->fontlist.end(),
 773                                             search_font, Pimpl::matchFT());
 774         unsigned int i = it - pimpl_->fontlist.begin();
 775         bool notfound = it == pimpl_->fontlist.end();
 776
 777         if (!notfound && pimpl_->fontlist[i].font() == font)
 778                 return;
 779
 780         bool begin = pos == 0 || notfound ||
 781                 (i > 0 && pimpl_->fontlist[i-1].pos() == pos - 1);
 782         // Is position pos is a beginning of a font block?
 783         bool end = !notfound && pimpl_->fontlist[i].pos() == pos;
 784         // Is position pos is the end of a font block?
 785         if (begin && end) { // A single char block
 786                 if (i + 1 < pimpl_->fontlist.size() &&
 787                     pimpl_->fontlist[i + 1].font() == font) {
 788                         // Merge the singleton block with the next block
 789                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 790                         if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 791                                 pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i-1);
 792                 } else if (i > 0 && pimpl_->fontlist[i - 1].font() == font) {
 793                         // Merge the singleton block with the previous block
 794                         pimpl_->fontlist[i - 1].pos(pos);
 795                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 796                 } else
 797                         pimpl_->fontlist[i].font(font);
 798         } else if (begin) {
 799                 if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 800                         pimpl_->fontlist[i - 1].pos(pos);
 801                 else
 802                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 803                                         Pimpl::FontTable(pos, font));
 804         } else if (end) {
 805                 pimpl_->fontlist[i].pos(pos - 1);
 806                 if (!(i + 1 < pimpl_->fontlist.size() &&
 807                       pimpl_->fontlist[i + 1].font() == font))
 808                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 809                                         Pimpl::FontTable(pos, font));
 810         } else { // The general case. The block is splitted into 3 blocks
 811                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 812                                 Pimpl::FontTable(pos - 1, pimpl_->fontlist[i].font()));
 813                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 814                                 Pimpl::FontTable(pos, font));
 815         }
 816 }
 817
 818
 819
 820 void Paragraph::next(Paragraph * p)
 821 {
 822         next_ = p;
 823 }
 824
 825
 826 // This function is able to hide closed footnotes.
 827 Paragraph * Paragraph::next()
 828 {
 829         return next_;
 830 }
 831
 832
 833 Paragraph const * Paragraph::next() const
 834 {
 835         return next_;
 836 }
 837
 838
 839 void Paragraph::previous(Paragraph * p)
 840 {
 841         previous_ = p;
 842 }
 843
 844
 845 // This function is able to hide closed footnotes.
 846 Paragraph * Paragraph::previous()
 847 {
 848         return previous_;
 849 }
 850
 851
 852 // This function is able to hide closed footnotes.
 853 Paragraph const * Paragraph::previous() const
 854 {
 855         return previous_;
 856 }
 857
 858
 859 void Paragraph::breakParagraph(BufferParams const & bparams,
 860                                   pos_type pos,
 861                                   int flag)
 862 {
 863         // create a new paragraph
 864         Paragraph * tmp = new Paragraph(this);
 865         // remember to set the inset_owner
 866         tmp->setInsetOwner(inInset());
 867
 868         // this is an idea for a more userfriendly layout handling, I will
 869         // see what the users say
 870
 871         // layout stays the same with latex-environments
 872         if (flag) {
 873                 tmp->setOnlyLayout(layout);
 874                 tmp->setLabelWidthString(params().labelWidthString());
 875         }
 876
 877         if (size() > pos || !size() || flag == 2) {
 878                 tmp->setOnlyLayout(layout);
 879                 tmp->params().align(params().align());
 880                 tmp->setLabelWidthString(params().labelWidthString());
 881
 882                 tmp->params().lineBottom(params().lineBottom());
 883                 params().lineBottom(false);
 884                 tmp->params().pagebreakBottom(params().pagebreakBottom());
 885                 params().pagebreakBottom(false);
 886                 tmp->params().spaceBottom(params().spaceBottom());
 887                 params().spaceBottom(VSpace(VSpace::NONE));
 888
 889                 tmp->params().depth(params().depth());
 890                 tmp->params().noindent(params().noindent());
 891
 892                 // copy everything behind the break-position
 893                 // to the new paragraph
 894                 pos_type pos_end = pimpl_->size() - 1;
 895                 pos_type i = pos;
 896                 pos_type j = pos;
 897                 for (; i <= pos_end; ++i) {
 898                         cutIntoMinibuffer(bparams, i);
 899                         if (tmp->insertFromMinibuffer(j - pos))
 900                                 ++j;
 901                 }
 902                 for (i = pos_end; i >= pos; --i) {
 903                         erase(i);
 904                 }
 905         }
 906
 907         // just an idea of me
 908         if (!pos) {
 909                 tmp->params().lineTop(params().lineTop());
 910                 tmp->params().pagebreakTop(params().pagebreakTop());
 911                 tmp->params().spaceTop(params().spaceTop());
 912                 tmp->bibkey = bibkey;
 913                 clear();
 914                 // layout stays the same with latex-environments
 915                 if (flag) {
 916                         setOnlyLayout(tmp->layout);
 917                         setLabelWidthString(tmp->params().labelWidthString());
 918                         params().depth(tmp->params().depth());
 919                 }
 920         }
 921 }
 922
 923
 924 void Paragraph::makeSameLayout(Paragraph const * par)
 925 {
 926         layout = par->layout;
 927         // move to pimpl?
 928         params() = par->params();
 929 }
 930
 931
 932 int Paragraph::stripLeadingSpaces(lyx::textclass_type tclass)
 933 {
 934         if (textclasslist.Style(tclass, getLayout()).free_spacing ||
 935                 isFreeSpacing())
 936         {
 937                 return 0;
 938         }
 939
 940         int i = 0;
 941         while (size() && (isNewline(0) || isLineSeparator(0))) {
 942                 erase(0);
 943                 ++i;
 944         }
 945
 946         return i;
 947 }
 948
 949
 950 bool Paragraph::hasSameLayout(Paragraph const * par) const
 951 {
 952         return
 953                 par->layout == layout &&
 954                 params().sameLayout(par->params());
 955 }
 956
 957
 958 void Paragraph::breakParagraphConservative(BufferParams const & bparams,
 959                                            pos_type pos)
 960 {
 961         // create a new paragraph
 962         Paragraph * tmp = new Paragraph(this);
 963         tmp->makeSameLayout(this);
 964
 965         // When can pos > Last()?
 966         // I guess pos == Last() is possible.
 967         if (size() > pos) {
 968                 // copy everything behind the break-position to the new
 969                 // paragraph
 970                 pos_type pos_end = pimpl_->size() - 1;
 971
 972                 //pos_type i = pos;
 973                 //pos_type j = pos;
 974                 for (pos_type i = pos, j = pos; i <= pos_end; ++i) {
 975                         cutIntoMinibuffer(bparams, i);
 976                         if (tmp->insertFromMinibuffer(j - pos))
 977                                 ++j;
 978                 }
 979
 980                 for (pos_type k = pos_end; k >= pos; --k) {
 981                         erase(k);
 982                 }
 983         }
 984 }
 985
 986
 987 // Be carefull, this does not make any check at all.
 988 // This method has wrong name, it combined this par with the next par.
 989 // In that sense it is the reverse of break paragraph. (Lgb)
 990 void Paragraph::pasteParagraph(BufferParams const & bparams)
 991 {
 992         // copy the next paragraph to this one
 993         Paragraph * the_next = next();
 994
 995         // first the DTP-stuff
 996         params().lineBottom(the_next->params().lineBottom());
 997         params().spaceBottom(the_next->params().spaceBottom());
 998         params().pagebreakBottom(the_next->params().pagebreakBottom());
 999
1000         pos_type pos_end = the_next->pimpl_->size() - 1;
1001         pos_type pos_insert = size();
1002
1003         // ok, now copy the paragraph
1004         for (pos_type i = 0, j = 0; i <= pos_end; ++i) {
1005                 the_next->cutIntoMinibuffer(bparams, i);
1006                 if (insertFromMinibuffer(pos_insert + j))
1007                         ++j;
1008         }
1009
1010         // delete the next paragraph
1011         Paragraph * ppar = the_next->previous_;
1012         Paragraph * npar = the_next->next_;
1013         delete the_next;
1014         ppar->next(npar);
1015 }
1016
1017
1018 int Paragraph::getEndLabel(BufferParams const & bparams) const
1019 {
1020         Paragraph const * par = this;
1021         depth_type par_depth = getDepth();
1022         while (par) {
1023                 layout_type layout = par->getLayout();
1024                 int const endlabeltype =
1025                         textclasslist.Style(bparams.textclass,
1026                                             layout).endlabeltype;
1027                 if (endlabeltype != END_LABEL_NO_LABEL) {
1028                         if (!next_)
1029                                 return endlabeltype;
1030
1031                         depth_type const next_depth = next_->getDepth();
1032                         if (par_depth > next_depth ||
1033                             (par_depth == next_depth
1034                              && layout != next_->getLayout()))
1035                                 return endlabeltype;
1036                         break;
1037                 }
1038                 if (par_depth == 0)
1039                         break;
1040                 par = par->outerHook();
1041                 if (par)
1042                         par_depth = par->getDepth();
1043         }
1044         return END_LABEL_NO_LABEL;
1045 }
1046
1047
1048 Paragraph::depth_type Paragraph::getDepth() const
1049 {
1050         return params().depth();
1051 }
1052
1053
1054 char Paragraph::getAlign() const
1055 {
1056         return params().align();
1057 }
1058
1059
1060 string const & Paragraph::getLabelstring() const
1061 {
1062         return params().labelString();
1063 }
1064
1065
1066 int Paragraph::getFirstCounter(int i) const
1067 {
1068         return pimpl_->counter_[i];
1069 }
1070
1071
1072 // the next two functions are for the manual labels
1073 string const Paragraph::getLabelWidthString() const
1074 {
1075         if (!params().labelWidthString().empty())
1076                 return params().labelWidthString();
1077         else
1078                 return _("Senseless with this layout!");
1079 }
1080
1081
1082 void Paragraph::setLabelWidthString(string const & s)
1083 {
1084         params().labelWidthString(s);
1085 }
1086
1087
1088 void Paragraph::setOnlyLayout(layout_type new_layout)
1089 {
1090         layout = new_layout;
1091 }
1092
1093
1094 void Paragraph::setLayout(layout_type new_layout)
1095 {
1096         layout = new_layout;
1097         params().labelWidthString(string());
1098         params().align(LYX_ALIGN_LAYOUT);
1099         params().spaceTop(VSpace(VSpace::NONE));
1100         params().spaceBottom(VSpace(VSpace::NONE));
1101         params().spacing(Spacing(Spacing::Default));
1102 }
1103
1104
1105 // if the layout of a paragraph contains a manual label, the beginning of the
1106 // main body is the beginning of the second word. This is what the par-
1107 // function returns. If the layout does not contain a label, the main
1108 // body always starts with position 0. This differentiation is necessary,
1109 // because there cannot be a newline or a blank <= the beginning of the
1110 // main body in TeX.
1111
1112 int Paragraph::beginningOfMainBody() const
1113 {
1114         // Unroll the first two cycles of the loop
1115         // and remember the previous character to
1116         // remove unnecessary GetChar() calls
1117         pos_type i = 0;
1118         if (i < size()
1119             && getChar(i) != Paragraph::META_NEWLINE) {
1120                 ++i;
1121                 char previous_char = 0;
1122                 char temp = 0;
1123                 if (i < size()
1124                     && (previous_char = getChar(i)) != Paragraph::META_NEWLINE) {
1125                         // Yes, this  ^ is supposed to be "= " not "=="
1126                         ++i;
1127                         while (i < size()
1128                                && previous_char != ' '
1129                                && (temp = getChar(i)) != Paragraph::META_NEWLINE) {
1130                                 ++i;
1131                                 previous_char = temp;
1132                         }
1133                 }
1134         }
1135
1136         return i;
1137 }
1138
1139
1140 Paragraph * Paragraph::depthHook(depth_type depth)
1141 {
1142         Paragraph * newpar = this;
1143
1144         do {
1145                 newpar = newpar->previous();
1146         } while (newpar && newpar->getDepth() > depth);
1147
1148         if (!newpar) {
1149                 if (previous() || getDepth())
1150                         lyxerr << "ERROR (Paragraph::DepthHook): "
1151                                 "no hook." << endl;
1152                 newpar = this;
1153         }
1154
1155         return newpar;
1156 }
1157
1158
1159 Paragraph const * Paragraph::depthHook(depth_type depth) const
1160 {
1161         Paragraph const * newpar = this;
1162
1163         do {
1164                 newpar = newpar->previous();
1165         } while (newpar && newpar->getDepth() > depth);
1166
1167         if (!newpar) {
1168                 if (previous() || getDepth())
1169                         lyxerr << "ERROR (Paragraph::DepthHook): "
1170                                 "no hook." << endl;
1171                 newpar = this;
1172         }
1173
1174         return newpar;
1175 }
1176
1177 Paragraph * Paragraph::outerHook()
1178 {
1179         if(!getDepth())
1180                 return 0;
1181         return depthHook(depth_type(getDepth() - 1));
1182 }
1183
1184 Paragraph const * Paragraph::outerHook() const
1185 {
1186         if(!getDepth())
1187                 return 0;
1188         return depthHook(depth_type(getDepth() - 1));
1189 }
1190
1191 int Paragraph::autoDeleteInsets()
1192 {
1193         int count = 0;
1194         InsetList::size_type index = 0;
1195         while (index < insetlist.size()) {
1196                 if (insetlist[index].inset && insetlist[index].inset->autoDelete()) {
1197                         erase(insetlist[index].pos);
1198                         // erase() calls to insetlist.erase(&insetlist[index])
1199                         // so index shouldn't be increased.
1200                         ++count;
1201                 } else
1202                         ++index;
1203         }
1204         return count;
1205 }
1206
1207
1208 Paragraph::inset_iterator
1209 Paragraph::InsetIterator(pos_type pos)
1210 {
1211         InsetTable search_inset(pos, 0);
1212         InsetList::iterator it = lower_bound(insetlist.begin(),
1213                                              insetlist.end(),
1214                                              search_inset, Pimpl::matchIT());
1215         return inset_iterator(it);
1216 }
1217
1218
1219 // returns -1 if inset not found
1220 int Paragraph::getPositionOfInset(Inset const * inset) const
1221 {
1222         // Find the entry.
1223         for (InsetList::const_iterator cit = insetlist.begin();
1224              cit != insetlist.end(); ++cit) {
1225                 if (cit->inset == inset) {
1226                         return cit->pos;
1227                 }
1228         }
1229         if (inset == bibkey)
1230                 return 0;
1231
1232         return -1;
1233 }
1234
1235
1236 Paragraph * Paragraph::TeXOnePar(Buffer const * buf,
1237                                        BufferParams const & bparams,
1238                                        ostream & os, TexRow & texrow,
1239                                        bool moving_arg)
1240 {
1241         lyxerr[Debug::LATEX] << "TeXOnePar...     " << this << endl;
1242         LyXLayout const & style =
1243                 textclasslist.Style(bparams.textclass,
1244                                     layout);
1245
1246         bool further_blank_line = false;
1247
1248         if (params().startOfAppendix()) {
1249                 os << "\\appendix\n";
1250                 texrow.newline();
1251         }
1252
1253         if (!params().spacing().isDefault()
1254             && (!previous() || !previous()->hasSameLayout(this))) {
1255                 os << params().spacing().writeEnvirBegin() << "\n";
1256                 texrow.newline();
1257         }
1258
1259         if (tex_code_break_column && style.isCommand()){
1260                 os << '\n';
1261                 texrow.newline();
1262         }
1263
1264         if (params().pagebreakTop()) {
1265                 os << "\\newpage";
1266                 further_blank_line = true;
1267         }
1268         if (params().spaceTop().kind() != VSpace::NONE) {
1269                 os << params().spaceTop().asLatexCommand(bparams);
1270                 further_blank_line = true;
1271         }
1272
1273         if (params().lineTop()) {
1274                 os << "\\lyxline{\\" << getFont(bparams, 0).latexSize() << '}'
1275                    << "\\vspace{-1\\parskip}";
1276                 further_blank_line = true;
1277         }
1278
1279         if (further_blank_line){
1280                 os << '\n';
1281                 texrow.newline();
1282         }
1283
1284         Language const * language = getParLanguage(bparams);
1285         Language const * doc_language = bparams.language;
1286         Language const * previous_language = previous()
1287                 ? previous()->getParLanguage(bparams) : doc_language;
1288
1289         if (language->babel() != previous_language->babel()
1290             // check if we already put language command in TeXEnvironment()
1291             && !(textclasslist.Style(bparams.textclass, layout).isEnvironment()
1292                  && (!previous() || previous()->layout != layout ||
1293                      previous()->params().depth() != params().depth()))) {
1294
1295                 if (!lyxrc.language_command_end.empty() &&
1296                     previous_language->babel() != doc_language->babel()) {
1297                         os << subst(lyxrc.language_command_end, "$$lang",
1298                                     previous_language->babel())
1299                            << endl;
1300                         texrow.newline();
1301                 }
1302
1303                 if (lyxrc.language_command_end.empty() ||
1304                     language->babel() != doc_language->babel()) {
1305                         os << subst(lyxrc.language_command_begin, "$$lang",
1306                                     language->babel())
1307                            << endl;
1308                         texrow.newline();
1309                 }
1310         }
1311
1312         if (bparams.inputenc == "auto" &&
1313             language->encoding() != previous_language->encoding()) {
1314                 os << "\\inputencoding{"
1315                    << language->encoding()->LatexName()
1316                    << "}" << endl;
1317                 texrow.newline();
1318         }
1319
1320         switch (style.latextype) {
1321         case LATEX_COMMAND:
1322                 os << '\\'
1323                    << style.latexname()
1324                    << style.latexparam();
1325                 break;
1326         case LATEX_ITEM_ENVIRONMENT:
1327                 if (bibkey) {
1328                         bibkey->latex(buf, os, false, false);
1329                 } else
1330                         os << "\\item ";
1331                 break;
1332         case LATEX_LIST_ENVIRONMENT:
1333                 os << "\\item ";
1334                 break;
1335         default:
1336                 break;
1337         }
1338
1339         bool need_par = simpleTeXOnePar(buf, bparams, os, texrow, moving_arg);
1340
1341         // Make sure that \\par is done with the font of the last
1342         // character if this has another size as the default.
1343         // This is necessary because LaTeX (and LyX on the screen)
1344         // calculates the space between the baselines according
1345         // to this font. (Matthias)
1346         //
1347         // Is this really needed ? (Dekel)
1348         // We do not need to use to change the font for the last paragraph
1349         // or for a command.
1350         LyXFont const font =
1351                 (size() == 0
1352                  ? getLayoutFont(bparams)
1353                  : getFont(bparams, size() - 1));
1354
1355         bool is_command = textclasslist.Style(bparams.textclass,
1356                                               getLayout()).isCommand();
1357         if (style.resfont.size() != font.size() && next_ && !is_command) {
1358                 if (!need_par)
1359                         os << "{";
1360                 os << "\\" << font.latexSize() << " \\par}";
1361         } else if (need_par) {
1362                 os << "\\par}";
1363         } else if (is_command)
1364                 os << "}";
1365
1366         switch (style.latextype) {
1367         case LATEX_ITEM_ENVIRONMENT:
1368         case LATEX_LIST_ENVIRONMENT:
1369                 if (next_ && (params().depth() < next_->params().depth())) {
1370                         os << '\n';
1371                         texrow.newline();
1372                 }
1373                 break;
1374         case LATEX_ENVIRONMENT:
1375                 // if its the last paragraph of the current environment
1376                 // skip it otherwise fall through
1377                 if (next_
1378                     && (next_->layout != layout
1379                         || next_->params().depth() != params().depth()))
1380                         break;
1381                 // fall through possible
1382         default:
1383                 // we don't need it for the last paragraph!!!
1384                 if (next_) {
1385                         os << '\n';
1386                         texrow.newline();
1387                 }
1388         }
1389
1390         further_blank_line = false;
1391         if (params().lineBottom()) {
1392                 os << "\\lyxline{\\" << font.latexSize() << '}';
1393                 further_blank_line = true;
1394         }
1395
1396         if (params().spaceBottom().kind() != VSpace::NONE) {
1397                 os << params().spaceBottom().asLatexCommand(bparams);
1398                 further_blank_line = true;
1399         }
1400
1401         if (params().pagebreakBottom()) {
1402                 os << "\\newpage";
1403                 further_blank_line = true;
1404         }
1405
1406         if (further_blank_line){
1407                 os << '\n';
1408                 texrow.newline();
1409         }
1410
1411         if (!params().spacing().isDefault()
1412             && (!next_ || !next_->hasSameLayout(this))) {
1413                 os << params().spacing().writeEnvirEnd() << "\n";
1414                 texrow.newline();
1415         }
1416
1417         // we don't need it for the last paragraph!!!
1418         if (next_) {
1419                 os << '\n';
1420                 texrow.newline();
1421         } else {
1422                 // Since \selectlanguage write the language to the aux file,
1423                 // we need to reset the language at the end of footnote or
1424                 // float.
1425
1426                 if (language->babel() != doc_language->babel()) {
1427                         if (lyxrc.language_command_end.empty())
1428                                 os << subst(lyxrc.language_command_begin,
1429                                             "$$lang",
1430                                             doc_language->babel())
1431                                    << endl;
1432                         else
1433                                 os << subst(lyxrc.language_command_end,
1434                                             "$$lang",
1435                                             language->babel())
1436                                    << endl;
1437                         texrow.newline();
1438                 }
1439         }
1440
1441         lyxerr[Debug::LATEX] << "TeXOnePar...done " << next_ << endl;
1442         return next_;
1443 }
1444
1445
1446 // This one spits out the text of the paragraph
1447 bool Paragraph::simpleTeXOnePar(Buffer const * buf,
1448                                    BufferParams const & bparams,
1449                                    ostream & os, TexRow & texrow,
1450                                    bool moving_arg)
1451 {
1452         lyxerr[Debug::LATEX] << "SimpleTeXOnePar...     " << this << endl;
1453
1454         bool return_value = false;
1455
1456         LyXLayout const & style =
1457                 textclasslist.Style(bparams.textclass,
1458                                     getLayout());
1459         LyXFont basefont;
1460
1461         // Maybe we have to create a optional argument.
1462         pos_type main_body;
1463         if (style.labeltype != LABEL_MANUAL)
1464                 main_body = 0;
1465         else
1466                 main_body = beginningOfMainBody();
1467
1468         int column = 0;
1469
1470         if (main_body > 0) {
1471                 os << '[';
1472                 ++column;
1473                 basefont = getLabelFont(bparams);
1474         } else {
1475                 basefont = getLayoutFont(bparams);
1476         }
1477
1478         if (main_body >= 0 && !pimpl_->size()) {
1479                 if (style.isCommand()) {
1480                         os << '{';
1481                         ++column;
1482                 }
1483         }
1484
1485         moving_arg |= style.needprotect;
1486
1487         // Which font is currently active?
1488         LyXFont running_font(basefont);
1489         // Do we have an open font change?
1490         bool open_font = false;
1491
1492         texrow.start(this, 0);
1493
1494         for (pos_type i = 0; i < size(); ++i) {
1495                 ++column;
1496                 // First char in paragraph or after label?
1497                 if (i == main_body) {
1498                         if (main_body > 0) {
1499                                 if (open_font) {
1500                                         column += running_font.latexWriteEndChanges(os, basefont, basefont);
1501                                         open_font = false;
1502                                 }
1503                                 basefont = getLayoutFont(bparams);
1504                                 running_font = basefont;
1505                                 os << ']';
1506                                 ++column;
1507                         }
1508                         if (style.isCommand()) {
1509                                 os << '{';
1510                                 ++column;
1511                         }
1512
1513                         if (params().noindent()) {
1514                                 os << "\\noindent ";
1515                                 column += 10;
1516                         }
1517                         switch (params().align()) {
1518                         case LYX_ALIGN_NONE:
1519                         case LYX_ALIGN_BLOCK:
1520                         case LYX_ALIGN_LAYOUT:
1521                         case LYX_ALIGN_SPECIAL:
1522                                 break;
1523                         case LYX_ALIGN_LEFT:
1524                                 if (getParLanguage(bparams)->babel() != "hebrew") {
1525                                         os << "\\begin{flushleft}";
1526                                         column += 17;
1527                                 } else {
1528                                         os << "\\begin{flushright}";
1529                                         column += 18;
1530                                 }
1531                                 break;
1532                         case LYX_ALIGN_RIGHT:
1533                                 if (getParLanguage(bparams)->babel() != "hebrew") {
1534                                         os << "\\begin{flushright}";
1535                                         column += 18;
1536                                 } else {
1537                                         os << "\\begin{flushleft}";
1538                                         column += 17;
1539                                 }
1540                                 break;
1541                         case LYX_ALIGN_CENTER:
1542                                 os << "\\begin{center}";
1543                                 column += 14;
1544                                 break;
1545                         }
1546                 }
1547
1548                 value_type c = getChar(i);
1549
1550                 // Fully instantiated font
1551                 LyXFont font = getFont(bparams, i);
1552
1553                 LyXFont const last_font = running_font;
1554
1555                 // Spaces at end of font change are simulated to be
1556                 // outside font change, i.e. we write "\textXX{text} "
1557                 // rather than "\textXX{text }". (Asger)
1558                 if (open_font && c == ' ' && i <= size() - 2) {
1559                         LyXFont const next_font = getFont(bparams, i + 1);
1560                         if (next_font != running_font
1561                             && next_font != font) {
1562                                 font = next_font;
1563                         }
1564                 }
1565
1566                 // We end font definition before blanks
1567                 if (font != running_font && open_font) {
1568                         column += running_font.latexWriteEndChanges(os,
1569                                                                     basefont,
1570                                                                     (i == main_body-1) ? basefont : font);
1571                         running_font = basefont;
1572                         open_font = false;
1573                 }
1574
1575                 // Blanks are printed before start of fontswitch
1576                 if (c == ' ') {
1577                         // Do not print the separation of the optional argument
1578                         if (i != main_body - 1) {
1579                                 pimpl_->simpleTeXBlanks(os, texrow, i,
1580                                                        column, font, style);
1581                         }
1582                 }
1583
1584                 // Do we need to change font?
1585                 if (font != running_font && i != main_body - 1) {
1586                         column += font.latexWriteStartChanges(os, basefont,
1587                                                               last_font);
1588                         running_font = font;
1589                         open_font = true;
1590                 }
1591
1592                 if (c == Paragraph::META_NEWLINE) {
1593                         // newlines are handled differently here than
1594                         // the default in SimpleTeXSpecialChars().
1595                         if (!style.newline_allowed) {
1596                                 os << '\n';
1597                         } else {
1598                                 if (open_font) {
1599                                         column += running_font.latexWriteEndChanges(os, basefont, basefont);
1600                                         open_font = false;
1601                                 }
1602                                 basefont = getLayoutFont(bparams);
1603                                 running_font = basefont;
1604                                 if (font.family() ==
1605                                     LyXFont::TYPEWRITER_FAMILY) {
1606                                         os << "~";
1607                                 }
1608                                 if (moving_arg)
1609                                         os << "\\protect ";
1610                                 os << "\\\\\n";
1611                         }
1612                         texrow.newline();
1613                         texrow.start(this, i + 1);
1614                         column = 0;
1615                 } else {
1616                         pimpl_->simpleTeXSpecialChars(buf, bparams,
1617                                                       os, texrow, moving_arg,
1618                                                       font, running_font,
1619                                                       basefont, open_font,
1620                                                       style, i, column, c);
1621                 }
1622         }
1623
1624         // If we have an open font definition, we have to close it
1625         if (open_font) {
1626 #ifdef FIXED_LANGUAGE_END_DETECTION
1627                 if (next_) {
1628                         running_font
1629                                 .latexWriteEndChanges(os, basefont,
1630                                                       next_->getFont(bparams,
1631                                                       0));
1632                 } else {
1633                         running_font.latexWriteEndChanges(os, basefont,
1634                                                           basefont);
1635                 }
1636 #else
1637 #ifdef WITH_WARNINGS
1638 //#warning For now we ALWAYS have to close the foreign font settings if they are
1639 //#warning there as we start another \selectlanguage with the next paragraph if
1640 //#warning we are in need of this. This should be fixed sometime (Jug)
1641 #endif
1642                 running_font.latexWriteEndChanges(os, basefont,  basefont);
1643 #endif
1644         }
1645
1646         // Needed if there is an optional argument but no contents.
1647         if (main_body > 0 && main_body == size()) {
1648                 os << "]~";
1649                 return_value = false;
1650         }
1651
1652         switch (params().align()) {
1653         case LYX_ALIGN_NONE:
1654         case LYX_ALIGN_BLOCK:
1655         case LYX_ALIGN_LAYOUT:
1656         case LYX_ALIGN_SPECIAL:
1657                 break;
1658         case LYX_ALIGN_LEFT:
1659                 if (getParLanguage(bparams)->babel() != "hebrew") {
1660                         os << "\\end{flushleft}";
1661                         column+= 15;
1662                 } else {
1663                         os << "\\end{flushright}";
1664                         column+= 16;
1665                 }
1666                 break;
1667         case LYX_ALIGN_RIGHT:
1668                 if (getParLanguage(bparams)->babel() != "hebrew") {
1669                         os << "\\end{flushright}";
1670                         column+= 16;
1671                 } else {
1672                         os << "\\end{flushleft}";
1673                         column+= 15;
1674                 }
1675                 break;
1676         case LYX_ALIGN_CENTER:
1677                 os << "\\end{center}";
1678                 column+= 12;
1679                 break;
1680         }
1681
1682         lyxerr[Debug::LATEX] << "SimpleTeXOnePar...done " << this << endl;
1683         return return_value;
1684 }
1685
1686
1687 bool Paragraph::sgmlConvertChar(char c, string & sgml_string)
1688 {
1689         bool retval = false;
1690         switch (c) {
1691         case Paragraph::META_HFILL:
1692                 sgml_string.erase();
1693                 break;
1694         case Paragraph::META_NEWLINE:
1695                 sgml_string = '\n';
1696                 break;
1697         case '&':
1698                 sgml_string = "&amp;";
1699                 break;
1700         case '<':
1701                 sgml_string = "&lt;";
1702                 break;
1703         case '>':
1704                 sgml_string = "&gt;";
1705                 break;
1706         case '$':
1707                 sgml_string = "&dollar;";
1708                 break;
1709         case '#':
1710                 sgml_string = "&num;";
1711                 break;
1712         case '%':
1713                 sgml_string = "&percnt;";
1714                 break;
1715         case '[':
1716                 sgml_string = "&lsqb;";
1717                 break;
1718         case ']':
1719                 sgml_string = "&rsqb;";
1720                 break;
1721         case '{':
1722                 sgml_string = "&lcub;";
1723                 break;
1724         case '}':
1725                 sgml_string = "&rcub;";
1726                 break;
1727         case '~':
1728                 sgml_string = "&tilde;";
1729                 break;
1730         case '"':
1731                 sgml_string = "&quot;";
1732                 break;
1733         case '\\':
1734                 sgml_string = "&bsol;";
1735                 break;
1736         case ' ':
1737                 retval = true;
1738                 sgml_string = ' ';
1739                 break;
1740         case '\0': // Ignore :-)
1741                 sgml_string.erase();
1742                 break;
1743         default:
1744                 sgml_string = c;
1745                 break;
1746         }
1747         return retval;
1748 }
1749
1750
1751 Paragraph * Paragraph::TeXEnvironment(Buffer const * buf,
1752                                             BufferParams const & bparams,
1753                                             ostream & os, TexRow & texrow)
1754 {
1755         lyxerr[Debug::LATEX] << "TeXEnvironment...     " << this << endl;
1756
1757         LyXLayout const & style =
1758                 textclasslist.Style(bparams.textclass,
1759                                     layout);
1760
1761         Language const * language = getParLanguage(bparams);
1762         Language const * doc_language = bparams.language;
1763         Language const * previous_language = previous_
1764                 ? previous_->getParLanguage(bparams) : doc_language;
1765         if (language->babel() != previous_language->babel()) {
1766
1767                 if (!lyxrc.language_command_end.empty() &&
1768                     previous_language->babel() != doc_language->babel()) {
1769                         os << subst(lyxrc.language_command_end, "$$lang",
1770                                     previous_language->babel())
1771                            << endl;
1772                         texrow.newline();
1773                 }
1774
1775                 if (lyxrc.language_command_end.empty() ||
1776                     language->babel() != doc_language->babel()) {
1777                         os << subst(lyxrc.language_command_begin, "$$lang",
1778                                     language->babel())
1779                            << endl;
1780                         texrow.newline();
1781                 }
1782         }
1783
1784         if (style.isEnvironment()) {
1785                 if (style.latextype == LATEX_LIST_ENVIRONMENT) {
1786                         os << "\\begin{" << style.latexname() << "}{"
1787                            << params().labelWidthString() << "}\n";
1788                 } else if (style.labeltype == LABEL_BIBLIO) {
1789                         // ale970405
1790                         os << "\\begin{" << style.latexname() << "}{"
1791                            <<  bibitemWidest(buf)
1792                            << "}\n";
1793                 } else if (style.latextype == LATEX_ITEM_ENVIRONMENT) {
1794                         os << "\\begin{" << style.latexname() << '}'
1795                            << style.latexparam() << '\n';
1796                 } else
1797                         os << "\\begin{" << style.latexname() << '}'
1798                            << style.latexparam() << '\n';
1799                 texrow.newline();
1800         }
1801         Paragraph * par = this;
1802         do {
1803                 par = par->TeXOnePar(buf, bparams, os, texrow, false);
1804
1805                 if (par && par->params().depth() > params().depth()) {
1806                         if (textclasslist.Style(bparams.textclass,
1807                                                 par->layout).isParagraph()
1808                             // Thinko!
1809                             // How to handle this? (Lgb)
1810                             //&& !suffixIs(os, "\n\n")
1811                                 ) {
1812                                 // There should be at least one '\n' already
1813                                 // but we need there to be two for Standard
1814                                 // paragraphs that are depth-increment'ed to be
1815                                 // output correctly.  However, tables can
1816                                 // also be paragraphs so don't adjust them.
1817                                 // ARRae
1818                                 // Thinkee:
1819                                 // Will it ever harm to have one '\n' too
1820                                 // many? i.e. that we sometimes will have
1821                                 // three in a row. (Lgb)
1822                                 os << '\n';
1823                                 texrow.newline();
1824                         }
1825                         par = par->pimpl_->TeXDeeper(buf, bparams, os, texrow);
1826                 }
1827         } while (par
1828                  && par->layout == layout
1829                  && par->params().depth() == params().depth());
1830
1831         if (style.isEnvironment()) {
1832                 os << "\\end{" << style.latexname() << "}\n";
1833                 texrow.newline();
1834         }
1835
1836         lyxerr[Debug::LATEX] << "TeXEnvironment...done " << par << endl;
1837         return par;  // ale970302
1838 }
1839
1840
1841 bool Paragraph::isHfill(pos_type pos) const
1842 {
1843         return IsHfillChar(getChar(pos));
1844 }
1845
1846
1847 bool Paragraph::isInset(pos_type pos) const
1848 {
1849         return IsInsetChar(getChar(pos));
1850 }
1851
1852
1853 bool Paragraph::isNewline(pos_type pos) const
1854 {
1855         return pos >= 0 && IsNewlineChar(getChar(pos));
1856 }
1857
1858
1859 bool Paragraph::isSeparator(pos_type pos) const
1860 {
1861         return IsSeparatorChar(getChar(pos));
1862 }
1863
1864
1865 bool Paragraph::isLineSeparator(pos_type pos) const
1866 {
1867         return IsLineSeparatorChar(getChar(pos));
1868 }
1869
1870
1871 bool Paragraph::isKomma(pos_type pos) const
1872 {
1873         return IsKommaChar(getChar(pos));
1874 }
1875
1876
1877 /// Used by the spellchecker
1878 bool Paragraph::isLetter(pos_type pos) const
1879 {
1880         value_type const c = getChar(pos);
1881         if (IsLetterChar(c))
1882                 return true;
1883         if (isInset(pos))
1884                 return getInset(pos)->isLetter();
1885         // We want to pass the ' and escape chars to ispell
1886         string const extra = lyxrc.isp_esc_chars + '\'';
1887         return contains(extra, c);
1888 }
1889
1890
1891 bool Paragraph::isWord(pos_type pos ) const
1892 {
1893         return IsWordChar(getChar(pos)) ;
1894 }
1895
1896
1897 Language const *
1898 Paragraph::getParLanguage(BufferParams const & bparams) const
1899 {
1900         if (size() > 0) {
1901 #ifndef INHERIT_LANGUAGE
1902                 return getFirstFontSettings().language();
1903 #else
1904                 Language const * lang = getFirstFontSettings().language();
1905 #warning We should make this somewhat better, any ideas? (Jug)
1906                 if (lang == inherit_language || lang == ignore_language)
1907                         lang = bparams.language;
1908                 return lang;
1909 #endif
1910         } else if (previous_)
1911                 return previous_->getParLanguage(bparams);
1912         else
1913                 return bparams.language;
1914 }
1915
1916
1917 bool Paragraph::isRightToLeftPar(BufferParams const & bparams) const
1918 {
1919         return lyxrc.rtl_support
1920                 && getParLanguage(bparams)->RightToLeft();
1921 }
1922
1923
1924 void Paragraph::changeLanguage(BufferParams const & bparams,
1925                                   Language const * from, Language const * to)
1926 {
1927         for (pos_type i = 0; i < size(); ++i) {
1928                 LyXFont font = getFontSettings(bparams, i);
1929                 if (font.language() == from) {
1930                         font.setLanguage(to);
1931                         setFont(i, font);
1932                 }
1933         }
1934 }
1935
1936
1937 bool Paragraph::isMultiLingual(BufferParams const & bparams)
1938 {
1939         Language const * doc_language = bparams.language;
1940         for (Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
1941              cit != pimpl_->fontlist.end(); ++cit)
1942                 if (cit->font().language() != ignore_language &&
1943                     cit->font().language() != latex_language &&
1944 #ifdef INHERIT_LANGUAGE
1945                         cit->font().language() != inherit_language &&
1946 #endif
1947                         cit->font().language() != doc_language)
1948                         return true;
1949         return false;
1950 }
1951
1952
1953 // Convert the paragraph to a string.
1954 // Used for building the table of contents
1955 string const Paragraph::asString(Buffer const * buffer, bool label)
1956 {
1957         BufferParams const & bparams = buffer->params;
1958         string s;
1959         if (label && !params().labelString().empty())
1960                 s += params().labelString() + ' ';
1961         string::size_type const len = s.size();
1962
1963         for (pos_type i = 0; i < size(); ++i) {
1964                 value_type c = getChar(i);
1965                 if (IsPrintable(c))
1966                         s += c;
1967                 else if (c == META_INSET &&
1968                          getInset(i)->lyxCode() == Inset::MATH_CODE) {
1969                         ostringstream ost;
1970                         getInset(i)->ascii(buffer, ost);
1971                         s += subst(ost.str().c_str(),'\n',' ');
1972                 }
1973         }
1974
1975         if (isRightToLeftPar(bparams))
1976                 reverse(s.begin() + len,s.end());
1977
1978         return s;
1979 }
1980
1981
1982 string const Paragraph::asString(Buffer const * buffer,
1983                                  pos_type beg, pos_type end, bool label)
1984 {
1985         ostringstream ost;
1986
1987         if (beg == 0 && label && !params().labelString().empty())
1988                 ost << params().labelString() << ' ';
1989
1990         for (pos_type i = beg; i < end; ++i) {
1991                 value_type const c = getUChar(buffer->params, i);
1992                 if (IsPrintable(c))
1993                         ost << c;
1994                 else if (c == META_NEWLINE)
1995                         ost << '\n';
1996                 else if (c == META_HFILL)
1997                         ost << '\t';
1998                 else if (c == META_INSET) {
1999                         getInset(i)->ascii(buffer, ost);
2000                 }
2001         }
2002
2003         return ost.str().c_str();
2004 }
2005
2006
2007 void Paragraph::setInsetOwner(Inset * i)
2008 {
2009         pimpl_->inset_owner = i;
2010         for (InsetList::const_iterator cit = insetlist.begin();
2011              cit != insetlist.end(); ++cit) {
2012                 if (cit->inset)
2013                         cit->inset->setOwner(i);
2014         }
2015 }
2016
2017
2018 void Paragraph::deleteInsetsLyXText(BufferView * bv)
2019 {
2020         // then the insets
2021         for (InsetList::const_iterator cit = insetlist.begin();
2022              cit != insetlist.end(); ++cit) {
2023                 if (cit->inset) {
2024                         if (cit->inset->isTextInset()) {
2025                                 static_cast<UpdatableInset *>
2026                                         (cit->inset)->deleteLyXText(bv, true);
2027                         }
2028                 }
2029         }
2030 }
2031
2032
2033 void Paragraph::resizeInsetsLyXText(BufferView * bv)
2034 {
2035         // then the insets
2036         for (InsetList::const_iterator cit = insetlist.begin();
2037              cit != insetlist.end(); ++cit)
2038         {
2039                 if (cit->inset) {
2040                         if (cit->inset->isTextInset()) {
2041                                 static_cast<UpdatableInset *>
2042                                         (cit->inset)->resizeLyXText(bv, true);
2043                         }
2044                 }
2045         }
2046 }
2047
2048
2049 void Paragraph::setContentsFromPar(Paragraph * par)
2050 {
2051         pimpl_->setContentsFromPar(par);
2052 }
2053
2054
2055 lyx::pos_type Paragraph::size() const
2056 {
2057         return pimpl_->size();
2058 }
2059
2060
2061 Paragraph::value_type Paragraph::getChar(pos_type pos) const
2062 {
2063         return pimpl_->getChar(pos);
2064 }
2065
2066
2067 int Paragraph::id() const
2068 {
2069         return pimpl_->id_;
2070 }
2071
2072
2073 void  Paragraph::id(int id_arg)
2074 {
2075         pimpl_->id_ = id_arg;
2076 }
2077
2078
2079 layout_type Paragraph::getLayout() const
2080 {
2081         return layout;
2082 }
2083
2084
2085 bool Paragraph::isFirstInSequence() const
2086 {
2087         Paragraph const * dhook = depthHook(getDepth());
2088         return (dhook == this
2089                 || dhook->getLayout() != getLayout()
2090                 || dhook->getDepth() != getDepth());
2091 }
2092
2093
2094 Inset * Paragraph::inInset() const
2095 {
2096         return pimpl_->inset_owner;
2097 }
2098
2099
2100 void Paragraph::clearContents()
2101 {
2102         pimpl_->clear();
2103 }
2104
2105
2106 void Paragraph::setCounter(int i, int v)
2107 {
2108         pimpl_->counter_[i] = v;
2109 }
2110
2111
2112 int Paragraph::getCounter(int i) const
2113 {
2114         return pimpl_->counter_[i];
2115 }
2116
2117
2118 void Paragraph::incCounter(int i)
2119 {
2120         pimpl_->counter_[i]++;
2121 }
2122
2123
2124 void Paragraph::setChar(pos_type pos, value_type c)
2125 {
2126         pimpl_->setChar(pos, c);
2127 }
2128
2129
2130 Paragraph::inset_iterator::inset_iterator(Paragraph::InsetList::iterator const & iter)
2131  : it(iter)
2132 {}
2133
2134
2135 Paragraph::inset_iterator Paragraph::inset_iterator_begin()
2136 {
2137         return inset_iterator(insetlist.begin());
2138 }
2139
2140
2141 Paragraph::inset_iterator Paragraph::inset_iterator_end()
2142 {
2143         return inset_iterator(insetlist.end());
2144 }
2145
2146
2147 ParagraphParameters & Paragraph::params()
2148 {
2149         return pimpl_->params;
2150 }
2151
2152
2153 ParagraphParameters const & Paragraph::params() const
2154 {
2155         return pimpl_->params;
2156 }
2157
2158
2159 Paragraph * Paragraph::getParFromID(int id) const
2160 {
2161         return pimpl_->getParFromID(id);
2162 }
2163
2164
2165 bool Paragraph::isFreeSpacing() const
2166 {
2167         // for now we just need this, later should we need this in some
2168         // other way we can always add a function to Inset::() too.
2169         if (pimpl_->inset_owner && pimpl_->inset_owner->owner())
2170                 return (pimpl_->inset_owner->owner()->lyxCode() == Inset::ERT_CODE);
2171         return false;
2172 }