src/paragraph_funcs.C

   1 /**
   2  * \file paragraph_funcs.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  *
   8  * Full author contact details are available in file CREDITS
   9  */
  10
  11 #include <config.h>
  12
  13 #include "paragraph_funcs.h"
  14 #include "paragraph_pimpl.h"
  15 #include "buffer.h"
  16 #include "ParagraphParameters.h"
  17 #include "lyxtextclasslist.h"
  18 #include "debug.h"
  19 #include "gettext.h"
  20 #include "language.h"
  21 #include "encoding.h"
  22 #include "lyxrc.h"
  23 #include "lyxlex.h"
  24 #include "factory.h"
  25 #include "Lsstream.h"
  26 #include "support/lstrings.h"
  27 #include "insets/insetoptarg.h"
  28 #include "insets/insetcommandparams.h"
  29 #include "insets/insetbibitem.h"
  30 #include "insets/insetspace.h"
  31 #include "insets/insetspecialchar.h"
  32 #include "insets/insetlatexaccent.h"
  33 #include "insets/insettabular.h"
  34 #include "insets/insethfill.h"
  35 #include "insets/inseterror.h"
  36 #include "insets/insetnewline.h"
  37
  38 extern string bibitemWidest(Buffer const *);
  39
  40 using lyx::pos_type;
  41 //using lyx::layout_type;
  42 using std::endl;
  43 using std::ostream;
  44
  45
  46 void breakParagraph(BufferParams const & bparams,
  47                     ParagraphList & paragraphs,
  48                     ParagraphList::iterator par,
  49                     pos_type pos,
  50                     int flag)
  51 {
  52         // create a new paragraph, and insert into the list
  53         ParagraphList::iterator tmp = paragraphs.insert(boost::next(par),
  54                                                         new Paragraph);
  55
  56         // without doing that we get a crash when typing <Return> at the
  57         // end of a paragraph
  58         tmp->layout(bparams.getLyXTextClass().defaultLayout());
  59         // remember to set the inset_owner
  60         tmp->setInsetOwner(par->inInset());
  61
  62         if (bparams.tracking_changes)
  63                 tmp->trackChanges();
  64
  65         // this is an idea for a more userfriendly layout handling, I will
  66         // see what the users say
  67
  68         // layout stays the same with latex-environments
  69         if (flag) {
  70                 tmp->layout(par->layout());
  71                 tmp->setLabelWidthString(par->params().labelWidthString());
  72         }
  73
  74         bool const isempty = (par->layout()->keepempty && par->empty());
  75
  76         if (!isempty && (par->size() > pos || par->empty() || flag == 2)) {
  77                 tmp->layout(par->layout());
  78                 tmp->params().align(par->params().align());
  79                 tmp->setLabelWidthString(par->params().labelWidthString());
  80
  81                 tmp->params().lineBottom(par->params().lineBottom());
  82                 par->params().lineBottom(false);
  83                 tmp->params().pagebreakBottom(par->params().pagebreakBottom());
  84                 par->params().pagebreakBottom(false);
  85                 tmp->params().spaceBottom(par->params().spaceBottom());
  86                 par->params().spaceBottom(VSpace(VSpace::NONE));
  87
  88                 tmp->params().depth(par->params().depth());
  89                 tmp->params().noindent(par->params().noindent());
  90
  91                 // copy everything behind the break-position
  92                 // to the new paragraph
  93
  94 #ifdef WITH_WARNINGS
  95 #warning this seems wrong
  96 #endif
  97                 /* FIXME: if !keepempty, empty() == true, then we reach
  98                  * here with size() == 0. So pos_end becomes - 1. Why
  99                  * doesn't this cause problems ???
 100                  */
 101                 pos_type pos_end = par->size() - 1;
 102                 pos_type i = pos;
 103                 pos_type j = pos;
 104
 105                 for (; i <= pos_end; ++i) {
 106                         Change::Type change(par->lookupChange(i));
 107                         par->cutIntoMinibuffer(bparams, i);
 108                         if (tmp->insertFromMinibuffer(j - pos)) {
 109                                 tmp->setChange(j - pos, change);
 110                                 ++j;
 111                         }
 112                 }
 113                 for (i = pos_end; i >= pos; --i) {
 114                         par->eraseIntern(i);
 115                 }
 116         }
 117
 118         if (pos)
 119                 return;
 120
 121         tmp->params().lineTop(par->params().lineTop());
 122         tmp->params().pagebreakTop(par->params().pagebreakTop());
 123         tmp->params().spaceTop(par->params().spaceTop());
 124         par->params().clear();
 125
 126         par->layout(bparams.getLyXTextClass().defaultLayout());
 127
 128         // layout stays the same with latex-environments
 129         if (flag) {
 130                 par->layout(tmp->layout());
 131                 par->setLabelWidthString(tmp->params().labelWidthString());
 132                 par->params().depth(tmp->params().depth());
 133         }
 134
 135         // subtle, but needed to get empty pars working right
 136         if (bparams.tracking_changes) {
 137                 if (!par->size()) {
 138                         par->cleanChanges();
 139                 } else if (!tmp->size()) {
 140                         tmp->cleanChanges();
 141                 }
 142         }
 143 }
 144
 145
 146 void breakParagraphConservative(BufferParams const & bparams,
 147                                 ParagraphList & paragraphs,
 148                                 ParagraphList::iterator par,
 149                                 pos_type pos)
 150 {
 151         // create a new paragraph
 152         ParagraphList::iterator tmp = paragraphs.insert(boost::next(par),
 153                                                         new Paragraph);
 154         tmp->makeSameLayout(*par);
 155
 156         // When can pos > size()?
 157         // I guess pos == size() is possible.
 158         if (par->size() > pos) {
 159                 // copy everything behind the break-position to the new
 160                 // paragraph
 161                 pos_type pos_end = par->size() - 1;
 162
 163                 for (pos_type i = pos, j = pos; i <= pos_end; ++i) {
 164                         par->cutIntoMinibuffer(bparams, i);
 165                         if (tmp->insertFromMinibuffer(j - pos))
 166                                 ++j;
 167                 }
 168
 169                 for (pos_type k = pos_end; k >= pos; --k) {
 170                         par->erase(k);
 171                 }
 172         }
 173 }
 174
 175
 176 void mergeParagraph(BufferParams const & bparams,
 177                     ParagraphList & paragraphs,
 178                     ParagraphList::iterator par)
 179 {
 180         ParagraphList::iterator the_next = boost::next(par);
 181
 182         // first the DTP-stuff
 183         par->params().lineBottom(the_next->params().lineBottom());
 184         par->params().spaceBottom(the_next->params().spaceBottom());
 185         par->params().pagebreakBottom(the_next->params().pagebreakBottom());
 186
 187         pos_type pos_end = the_next->size() - 1;
 188         pos_type pos_insert = par->size();
 189
 190         // ok, now copy the paragraph
 191         for (pos_type i = 0, j = 0; i <= pos_end; ++i) {
 192                 the_next->cutIntoMinibuffer(bparams, i);
 193                 if (par->insertFromMinibuffer(pos_insert + j))
 194                         ++j;
 195         }
 196
 197         paragraphs.erase(the_next);
 198 }
 199
 200
 201 ParagraphList::iterator depthHook(ParagraphList::iterator pit,
 202                                   ParagraphList const & plist,
 203                                   Paragraph::depth_type depth)
 204 {
 205         ParagraphList::iterator newpit = pit;
 206         ParagraphList::iterator beg = plist.begin();
 207
 208         if (newpit != beg)
 209                 --newpit;
 210
 211         while (newpit !=  beg && newpit->getDepth() > depth) {
 212                 --newpit;
 213         }
 214
 215         if (newpit->getDepth() > depth)
 216                 return pit;
 217
 218         return newpit;
 219 }
 220
 221
 222 ParagraphList::iterator outerHook(ParagraphList::iterator pit,
 223                                   ParagraphList const & plist)
 224 {
 225         if (!pit->getDepth())
 226                 return plist.end();
 227         return depthHook(pit, plist,
 228                          Paragraph::depth_type(pit->getDepth() - 1));
 229 }
 230
 231
 232 bool isFirstInSequence(ParagraphList::iterator pit,
 233                        ParagraphList const & plist)
 234 {
 235         ParagraphList::iterator dhook = depthHook(pit, plist, pit->getDepth());
 236         return (dhook == pit
 237                 || dhook->layout() != pit->layout()
 238                 || dhook->getDepth() != pit->getDepth());
 239 }
 240
 241
 242 int getEndLabel(ParagraphList::iterator p, ParagraphList const & plist)
 243 {
 244         ParagraphList::iterator pit = p;
 245         Paragraph::depth_type par_depth = p->getDepth();
 246         while (pit != plist.end()) {
 247                 LyXLayout_ptr const & layout = pit->layout();
 248                 int const endlabeltype = layout->endlabeltype;
 249
 250                 if (endlabeltype != END_LABEL_NO_LABEL) {
 251                         if (boost::next(p) == plist.end())
 252                                 return endlabeltype;
 253
 254                         Paragraph::depth_type const next_depth = boost::next(p)->getDepth();
 255                         if (par_depth > next_depth ||
 256                             (par_depth == next_depth &&
 257                              layout != boost::next(p)->layout()))
 258                                 return endlabeltype;
 259                         break;
 260                 }
 261                 if (par_depth == 0)
 262                         break;
 263                 pit = outerHook(pit, plist);
 264                 if (pit != plist.end())
 265                         par_depth = pit->getDepth();
 266         }
 267         return END_LABEL_NO_LABEL;
 268 }
 269
 270
 271 namespace {
 272
 273 ParagraphList::iterator
 274 TeXEnvironment(Buffer const * buf,
 275                ParagraphList const & paragraphs,
 276                ParagraphList::iterator pit,
 277                ostream & os, TexRow & texrow,
 278                LatexRunParams const & runparams);
 279
 280 ParagraphList::iterator
 281 TeXOnePar(Buffer const * buf,
 282           ParagraphList const & paragraphs,
 283           ParagraphList::iterator pit,
 284           ostream & os, TexRow & texrow,
 285           LatexRunParams const & runparams,
 286           bool moving_arg,
 287           string const & everypar = string());
 288
 289
 290 ParagraphList::iterator
 291 TeXDeeper(Buffer const * buf,
 292           ParagraphList const & paragraphs,
 293           ParagraphList::iterator pit,
 294           ostream & os, TexRow & texrow,
 295           LatexRunParams const & runparams)
 296 {
 297         lyxerr[Debug::LATEX] << "TeXDeeper...     " << &*pit << endl;
 298         ParagraphList::iterator par = pit;
 299
 300         while (par != paragraphs.end() &&
 301                      par->params().depth() == pit->params().depth()) {
 302                 if (par->layout()->isEnvironment()) {
 303                         par = TeXEnvironment(buf, paragraphs, par,
 304                                              os, texrow, runparams);
 305                 } else {
 306                         par = TeXOnePar(buf, paragraphs, par,
 307                                              os, texrow, runparams, false);
 308                 }
 309         }
 310         lyxerr[Debug::LATEX] << "TeXDeeper...done " << &*par << endl;
 311
 312         return par;
 313 }
 314
 315
 316 ParagraphList::iterator
 317 TeXEnvironment(Buffer const * buf,
 318                ParagraphList const & paragraphs,
 319                ParagraphList::iterator pit,
 320                ostream & os, TexRow & texrow,
 321                LatexRunParams const & runparams)
 322 {
 323         lyxerr[Debug::LATEX] << "TeXEnvironment...     " << &*pit << endl;
 324
 325         BufferParams const & bparams = buf->params;
 326
 327         LyXLayout_ptr const & style = pit->layout();
 328
 329         Language const * language = pit->getParLanguage(bparams);
 330         Language const * doc_language = bparams.language;
 331         Language const * previous_language =
 332                 (pit != paragraphs.begin())
 333                 ? boost::prior(pit)->getParLanguage(bparams)
 334                 : doc_language;
 335         if (language->babel() != previous_language->babel()) {
 336
 337                 if (!lyxrc.language_command_end.empty() &&
 338                     previous_language->babel() != doc_language->babel()) {
 339                         os << subst(lyxrc.language_command_end, "$$lang",
 340                                     previous_language->babel())
 341                            << endl;
 342                         texrow.newline();
 343                 }
 344
 345                 if (lyxrc.language_command_end.empty() ||
 346                     language->babel() != doc_language->babel()) {
 347                         os << subst(lyxrc.language_command_begin, "$$lang",
 348                                     language->babel())
 349                            << endl;
 350                         texrow.newline();
 351                 }
 352         }
 353
 354         bool leftindent_open = false;
 355         if (!pit->params().leftIndent().zero()) {
 356                 os << "\\begin{LyXParagraphLeftIndent}{" <<
 357                         pit->params().leftIndent().asLatexString() << "}\n";
 358                 texrow.newline();
 359                 leftindent_open = true;
 360         }
 361
 362         if (style->isEnvironment()) {
 363                 if (style->latextype == LATEX_LIST_ENVIRONMENT) {
 364                         os << "\\begin{" << style->latexname() << "}{"
 365                            << pit->params().labelWidthString() << "}\n";
 366                 } else if (style->labeltype == LABEL_BIBLIO) {
 367                         // ale970405
 368                         os << "\\begin{" << style->latexname() << "}{"
 369                            <<  bibitemWidest(buf)
 370                            << "}\n";
 371                 } else if (style->latextype == LATEX_ITEM_ENVIRONMENT) {
 372                         os << "\\begin{" << style->latexname() << '}'
 373                            << style->latexparam() << '\n';
 374                 } else
 375                         os << "\\begin{" << style->latexname() << '}'
 376                            << style->latexparam() << '\n';
 377                 texrow.newline();
 378         }
 379         ParagraphList::iterator par = pit;
 380         do {
 381                 par = TeXOnePar(buf, paragraphs, par, os, texrow, runparams, false);
 382
 383                 if (par != paragraphs.end()&& par->params().depth() > pit->params().depth()) {
 384                             if (par->layout()->isParagraph()) {
 385
 386                             // Thinko!
 387                             // How to handle this? (Lgb)
 388                             //&& !suffixIs(os, "\n\n")
 389                                     //) {
 390                                 // There should be at least one '\n' already
 391                                 // but we need there to be two for Standard
 392                                 // paragraphs that are depth-increment'ed to be
 393                                 // output correctly.  However, tables can
 394                                 // also be paragraphs so don't adjust them.
 395                                 // ARRae
 396                                 // Thinkee:
 397                                 // Will it ever harm to have one '\n' too
 398                                 // many? i.e. that we sometimes will have
 399                                 // three in a row. (Lgb)
 400                                 os << '\n';
 401                                 texrow.newline();
 402                         }
 403                         par = TeXDeeper(buf, paragraphs, par, os, texrow,
 404                                         runparams);
 405                 }
 406         } while (par != paragraphs.end()
 407                  && par->layout() == pit->layout()
 408                  && par->params().depth() == pit->params().depth()
 409                  && par->params().leftIndent() == pit->params().leftIndent());
 410
 411         if (style->isEnvironment()) {
 412                 os << "\\end{" << style->latexname() << "}\n";
 413                 texrow.newline();
 414         }
 415
 416         if (leftindent_open) {
 417                 os << "\\end{LyXParagraphLeftIndent}\n";
 418                 texrow.newline();
 419         }
 420
 421         lyxerr[Debug::LATEX] << "TeXEnvironment...done " << &*par << endl;
 422         return par;  // ale970302
 423 }
 424
 425
 426 InsetOptArg * optArgInset(Paragraph const & par)
 427 {
 428         // Find the entry.
 429         InsetList::iterator it = par.insetlist.begin();
 430         InsetList::iterator end = par.insetlist.end();
 431         for (; it != end; ++it) {
 432                 Inset * ins = it.getInset();
 433                 if (ins->lyxCode() == Inset::OPTARG_CODE) {
 434                         return static_cast<InsetOptArg *>(ins);
 435                 }
 436         }
 437         return 0;
 438 }
 439
 440
 441 ParagraphList::iterator
 442 TeXOnePar(Buffer const * buf,
 443           ParagraphList const & paragraphs,
 444           ParagraphList::iterator pit,
 445           ostream & os, TexRow & texrow,
 446           LatexRunParams const & runparams,
 447           bool moving_arg,
 448           string const & everypar)
 449 {
 450         lyxerr[Debug::LATEX] << "TeXOnePar...     " << &*pit << " '" << everypar
 451 << "'" << endl;
 452         BufferParams const & bparams = buf->params;
 453
 454         Inset const * in = pit->inInset();
 455         bool further_blank_line = false;
 456         LyXLayout_ptr style;
 457
 458         // well we have to check if we are in an inset with unlimited
 459         // lenght (all in one row) if that is true then we don't allow
 460         // any special options in the paragraph and also we don't allow
 461         // any environment other then "Standard" to be valid!
 462         if ((in == 0) || !in->forceDefaultParagraphs(in)) {
 463                 style = pit->layout();
 464
 465                 if (pit->params().startOfAppendix()) {
 466                         os << "\\appendix\n";
 467                         texrow.newline();
 468                 }
 469
 470                 if (!pit->params().spacing().isDefault()
 471                         && (pit == paragraphs.begin() || !boost::prior(pit)->hasSameLayout(*pit))) {
 472                         os << pit->params().spacing().writeEnvirBegin() << '\n';
 473                         texrow.newline();
 474                 }
 475
 476                 if (style->isCommand()) {
 477                         os << '\n';
 478                         texrow.newline();
 479                 }
 480
 481                 if (pit->params().pagebreakTop()) {
 482                         os << "\\newpage";
 483                         further_blank_line = true;
 484                 }
 485                 if (pit->params().spaceTop().kind() != VSpace::NONE) {
 486                         os << pit->params().spaceTop().asLatexCommand(bparams);
 487                         further_blank_line = true;
 488                 }
 489
 490                 if (pit->params().lineTop()) {
 491                         os << "\\lyxline{\\"
 492                            << pit->getFont(bparams, 0, outerFont(pit, paragraphs)).latexSize()
 493                            << '}'
 494                            << "\\vspace{-1\\parskip}";
 495                         further_blank_line = true;
 496                 }
 497
 498                 if (further_blank_line) {
 499                         os << '\n';
 500                         texrow.newline();
 501                 }
 502         } else {
 503                 style = bparams.getLyXTextClass().defaultLayout();
 504         }
 505
 506         Language const * language = pit->getParLanguage(bparams);
 507         Language const * doc_language = bparams.language;
 508         Language const * previous_language =
 509                 (pit != paragraphs.begin())
 510                 ? boost::prior(pit)->getParLanguage(bparams)
 511                 : doc_language;
 512
 513         if (language->babel() != previous_language->babel()
 514             // check if we already put language command in TeXEnvironment()
 515             && !(style->isEnvironment()
 516                  && (pit == paragraphs.begin() ||
 517                      (boost::prior(pit)->layout() != pit->layout() &&
 518                       boost::prior(pit)->getDepth() <= pit->getDepth())
 519                      || boost::prior(pit)->getDepth() < pit->getDepth())))
 520         {
 521                 if (!lyxrc.language_command_end.empty() &&
 522                     previous_language->babel() != doc_language->babel())
 523                 {
 524                         os << subst(lyxrc.language_command_end, "$$lang",
 525                                     previous_language->babel())
 526                            << endl;
 527                         texrow.newline();
 528                 }
 529
 530                 if (lyxrc.language_command_end.empty() ||
 531                     language->babel() != doc_language->babel())
 532                 {
 533                         os << subst(lyxrc.language_command_begin, "$$lang",
 534                                     language->babel())
 535                            << endl;
 536                         texrow.newline();
 537                 }
 538         }
 539
 540         if (bparams.inputenc == "auto" &&
 541             language->encoding() != previous_language->encoding()) {
 542                 os << "\\inputencoding{"
 543                    << language->encoding()->LatexName()
 544                    << "}\n";
 545                 texrow.newline();
 546         }
 547
 548         switch (style->latextype) {
 549         case LATEX_COMMAND:
 550                 os << '\\' << style->latexname();
 551
 552                 // Separate handling of optional argument inset.
 553                 if (style->optionalargs == 1) {
 554                         InsetOptArg * it = optArgInset(*pit);
 555                         if (it)
 556                                 it->latexOptional(buf, os, runparams,
 557                                                   false, false);
 558                 }
 559                 else
 560                         os << style->latexparam();
 561                 break;
 562         case LATEX_ITEM_ENVIRONMENT:
 563         case LATEX_LIST_ENVIRONMENT:
 564                 os << "\\item ";
 565                 break;
 566         case LATEX_BIB_ENVIRONMENT:
 567                 // ignore this, the inset will write itself
 568                 break;
 569         default:
 570                 break;
 571         }
 572
 573         os << everypar;
 574         bool need_par = pit->simpleTeXOnePar(buf, bparams,
 575                                              outerFont(pit, paragraphs),
 576                                              os, texrow, runparams, moving_arg);
 577
 578         // Make sure that \\par is done with the font of the last
 579         // character if this has another size as the default.
 580         // This is necessary because LaTeX (and LyX on the screen)
 581         // calculates the space between the baselines according
 582         // to this font. (Matthias)
 583         //
 584         // Is this really needed ? (Dekel)
 585         // We do not need to use to change the font for the last paragraph
 586         // or for a command.
 587         LyXFont const outerfont(outerFont(pit, paragraphs));
 588
 589         LyXFont const font =
 590                 (pit->empty()
 591                  ? pit->getLayoutFont(bparams, outerfont)
 592                  : pit->getFont(bparams, pit->size() - 1, outerfont));
 593
 594         bool is_command = style->isCommand();
 595
 596         if (style->resfont.size() != font.size()
 597             && boost::next(pit) != paragraphs.end()
 598             && !is_command) {
 599                 if (!need_par)
 600                         os << '{';
 601                 os << "\\" << font.latexSize() << " \\par}";
 602         } else if (need_par) {
 603                 os << "\\par}";
 604         } else if (is_command)
 605                 os << '}';
 606
 607         switch (style->latextype) {
 608         case LATEX_ITEM_ENVIRONMENT:
 609         case LATEX_LIST_ENVIRONMENT:
 610                 if (boost::next(pit) != paragraphs.end()
 611                     && (pit->params().depth() < boost::next(pit)->params().depth())) {
 612                         os << '\n';
 613                         texrow.newline();
 614                 }
 615                 break;
 616         case LATEX_ENVIRONMENT:
 617                 // if its the last paragraph of the current environment
 618                 // skip it otherwise fall through
 619                 if (boost::next(pit) != paragraphs.end()
 620                     && (boost::next(pit)->layout() != pit->layout()
 621                         || boost::next(pit)->params().depth() != pit->params().depth()))
 622                         break;
 623                 // fall through possible
 624         default:
 625                 // we don't need it for the last paragraph!!!
 626                 if (boost::next(pit) != paragraphs.end()) {
 627                         os << '\n';
 628                         texrow.newline();
 629                 }
 630         }
 631
 632         if ((in == 0) || !in->forceDefaultParagraphs(in)) {
 633                 further_blank_line = false;
 634                 if (pit->params().lineBottom()) {
 635                         os << "\\lyxline{\\" << font.latexSize() << '}';
 636                         further_blank_line = true;
 637                 }
 638
 639                 if (pit->params().spaceBottom().kind() != VSpace::NONE) {
 640                         os << pit->params().spaceBottom().asLatexCommand(bparams);
 641                         further_blank_line = true;
 642                 }
 643
 644                 if (pit->params().pagebreakBottom()) {
 645                         os << "\\newpage";
 646                         further_blank_line = true;
 647                 }
 648
 649                 if (further_blank_line) {
 650                         os << '\n';
 651                         texrow.newline();
 652                 }
 653
 654                 if (!pit->params().spacing().isDefault()
 655                         && (boost::next(pit) == paragraphs.end()|| !boost::next(pit)->hasSameLayout(*pit))) {
 656                         os << pit->params().spacing().writeEnvirEnd() << '\n';
 657                         texrow.newline();
 658                 }
 659         }
 660
 661         // we don't need it for the last paragraph!!!
 662         if (boost::next(pit) != paragraphs.end()) {
 663                 os << '\n';
 664                 texrow.newline();
 665         } else {
 666                 // Since \selectlanguage write the language to the aux file,
 667                 // we need to reset the language at the end of footnote or
 668                 // float.
 669
 670                 if (language->babel() != doc_language->babel()) {
 671                         if (lyxrc.language_command_end.empty())
 672                                 os << subst(lyxrc.language_command_begin,
 673                                             "$$lang",
 674                                             doc_language->babel())
 675                                    << endl;
 676                         else
 677                                 os << subst(lyxrc.language_command_end,
 678                                             "$$lang",
 679                                             language->babel())
 680                                    << endl;
 681                         texrow.newline();
 682                 }
 683         }
 684
 685         lyxerr[Debug::LATEX] << "TeXOnePar...done " << &*boost::next(pit) << endl;
 686         return ++pit;
 687 }
 688
 689 } // anon namespace
 690
 691
 692 //
 693 // LaTeX all paragraphs from par to endpar, if endpar == 0 then to the end
 694 //
 695 void latexParagraphs(Buffer const * buf,
 696                      ParagraphList const & paragraphs,
 697                      ostream & os,
 698                      TexRow & texrow,
 699                      LatexRunParams const & runparams,
 700                      bool moving_arg,
 701          string const & everypar)
 702 {
 703         bool was_title = false;
 704         bool already_title = false;
 705         LyXTextClass const & tclass = buf->params.getLyXTextClass();
 706         ParagraphList::iterator par = paragraphs.begin();
 707         ParagraphList::iterator endpar = paragraphs.end();
 708
 709         // if only_body
 710         while (par != endpar) {
 711                 Inset * in = par->inInset();
 712                 // well we have to check if we are in an inset with unlimited
 713                 // length (all in one row) if that is true then we don't allow
 714                 // any special options in the paragraph and also we don't allow
 715                 // any environment other then "Standard" to be valid!
 716                 if ((in == 0) || !in->forceDefaultParagraphs(in)) {
 717                         LyXLayout_ptr const & layout = par->layout();
 718
 719                         if (layout->intitle) {
 720                                 if (already_title) {
 721                                         lyxerr <<"Error in latexParagraphs: You"
 722                                                 " should not mix title layouts"
 723                                                 " with normal ones." << endl;
 724                                 } else if (!was_title) {
 725                                         was_title = true;
 726                                         if (tclass.titletype() == TITLE_ENVIRONMENT) {
 727                                                 os << "\\begin{"
 728                                                     << tclass.titlename()
 729                                                     << "}\n";
 730                                                 texrow.newline();
 731                                         }
 732                                 }
 733                         } else if (was_title && !already_title) {
 734                                 if (tclass.titletype() == TITLE_ENVIRONMENT) {
 735                                         os << "\\end{" << tclass.titlename()
 736                                             << "}\n";
 737                                 }
 738                                 else {
 739                                         os << "\\" << tclass.titlename()
 740                                             << "\n";
 741                                 }
 742                                 texrow.newline();
 743                                 already_title = true;
 744                                 was_title = false;
 745                         }
 746
 747                         if (layout->is_environment) {
 748                                 par = TeXOnePar(buf, paragraphs, par, os, texrow,
 749                                                 runparams, moving_arg, everypar);
 750                         } else if (layout->isEnvironment() ||
 751                                 !par->params().leftIndent().zero())
 752                         {
 753                                 par = TeXEnvironment(buf, paragraphs, par, os,
 754                                                      texrow, runparams);
 755                         } else {
 756                                 par = TeXOnePar(buf, paragraphs, par, os, texrow,
 757                                                 runparams, moving_arg, everypar);
 758                         }
 759                 } else {
 760                         par = TeXOnePar(buf, paragraphs, par, os, texrow,
 761                                         runparams, moving_arg, everypar);
 762                 }
 763         }
 764         // It might be that we only have a title in this document
 765         if (was_title && !already_title) {
 766                 if (tclass.titletype() == TITLE_ENVIRONMENT) {
 767                         os << "\\end{" << tclass.titlename()
 768                             << "}\n";
 769                 }
 770                 else {
 771                         os << "\\" << tclass.titlename()
 772                             << "\n";
 773                                 }
 774                 texrow.newline();
 775         }
 776 }
 777
 778
 779 namespace {
 780
 781 int readParToken(Buffer & buf, Paragraph & par, LyXLex & lex, string const & token)
 782 {
 783         static LyXFont font;
 784         static Change change;
 785
 786         BufferParams const & bp = buf.params;
 787
 788         if (token[0] != '\\') {
 789                 string::const_iterator cit = token.begin();
 790                 for (; cit != token.end(); ++cit) {
 791                         par.insertChar(par.size(), (*cit), font, change);
 792                 }
 793         } else if (token == "\\layout") {
 794                 lex.eatLine();
 795                 string layoutname = lex.getString();
 796
 797                 font = LyXFont(LyXFont::ALL_INHERIT, bp.language);
 798                 change = Change();
 799
 800                 LyXTextClass const & tclass = bp.getLyXTextClass();
 801
 802                 if (layoutname.empty()) {
 803                         layoutname = tclass.defaultLayoutName();
 804                 }
 805
 806                 bool hasLayout = tclass.hasLayout(layoutname);
 807
 808                 if (!hasLayout) {
 809                         lyxerr << "Layout '" << layoutname << "' does not"
 810                                << " exist in textclass '" << tclass.name()
 811                                << "'." << endl;
 812                         lyxerr << "Trying to use default layout instead."
 813                                << endl;
 814                         layoutname = tclass.defaultLayoutName();
 815                 }
 816
 817 #ifdef USE_CAPTION
 818                 // The is the compability reading of layout caption.
 819                 if (compare_ascii_no_case(layoutname, "caption") == 0) {
 820                         // We expect that the par we are now working on is
 821                         // really inside a InsetText inside a InsetFloat.
 822                         // We also know that captions can only be
 823                         // one paragraph. (Lgb)
 824
 825                         // We should now read until the next "\layout"
 826                         // is reached.
 827                         // This is probably not good enough, what if the
 828                         // caption is the last par in the document (Lgb)
 829                         istream & ist = lex.getStream();
 830                         stringstream ss;
 831                         string line;
 832                         int begin = 0;
 833                         while (true) {
 834                                 getline(ist, line);
 835                                 if (prefixIs(line, "\\layout")) {
 836                                         lex.pushToken(line);
 837                                         break;
 838                                 }
 839                                 if (prefixIs(line, "\\begin_inset"))
 840                                         ++begin;
 841                                 if (prefixIs(line, "\\end_inset")) {
 842                                         if (begin)
 843                                                 --begin;
 844                                         else {
 845                                                 lex.pushToken(line);
 846                                                 break;
 847                                         }
 848                                 }
 849
 850                                 ss << line << '\n';
 851                         }
 852
 853                         // Now we should have the whole layout in ss
 854                         // we should now be able to give this to the
 855                         // caption inset.
 856                         ss << "\\end_inset\n";
 857
 858                         // This seems like a bug in stringstream.
 859                         // We really should be able to use ss
 860                         // directly. (Lgb)
 861                         istringstream is(ss.str());
 862                         LyXLex tmplex(0, 0);
 863                         tmplex.setStream(is);
 864                         Inset * inset = new InsetCaption;
 865                         inset->Read(this, tmplex);
 866                         par.insertInset(pos, inset, font);
 867                         ++pos;
 868                 } else {
 869 #endif
 870                         par.layout(bp.getLyXTextClass()[layoutname]);
 871
 872                         // Test whether the layout is obsolete.
 873                         LyXLayout_ptr const & layout = par.layout();
 874                         if (!layout->obsoleted_by().empty())
 875                                 par.layout(bp.getLyXTextClass()[layout->obsoleted_by()]);
 876
 877                         par.params().read(lex);
 878 #if USE_CAPTION
 879                 }
 880 #endif
 881
 882         } else if (token == "\\end_inset") {
 883                 lyxerr << "Solitary \\end_inset in line " << lex.getLineNo() << "\n"
 884                        << "Missing \\begin_inset?.\n";
 885                 // Simply ignore this. The insets do not have
 886                 // to read this.
 887                 // But insets should read it, it is a part of
 888                 // the inset isn't it? Lgb.
 889         } else if (token == "\\begin_inset") {
 890                 Inset * i = readInset(lex, buf);
 891                 par.insertInset(par.size(), i, font, change);
 892         } else if (token == "\\family") {
 893                 lex.next();
 894                 font.setLyXFamily(lex.getString());
 895         } else if (token == "\\series") {
 896                 lex.next();
 897                 font.setLyXSeries(lex.getString());
 898         } else if (token == "\\shape") {
 899                 lex.next();
 900                 font.setLyXShape(lex.getString());
 901         } else if (token == "\\size") {
 902                 lex.next();
 903                 font.setLyXSize(lex.getString());
 904         } else if (token == "\\lang") {
 905                 lex.next();
 906                 string const tok = lex.getString();
 907                 Language const * lang = languages.getLanguage(tok);
 908                 if (lang) {
 909                         font.setLanguage(lang);
 910                 } else {
 911                         font.setLanguage(bp.language);
 912                         lex.printError("Unknown language `$$Token'");
 913                 }
 914         } else if (token == "\\numeric") {
 915                 lex.next();
 916                 font.setNumber(font.setLyXMisc(lex.getString()));
 917         } else if (token == "\\emph") {
 918                 lex.next();
 919                 font.setEmph(font.setLyXMisc(lex.getString()));
 920         } else if (token == "\\bar") {
 921                 lex.next();
 922                 string const tok = lex.getString();
 923
 924                 if (tok == "under")
 925                         font.setUnderbar(LyXFont::ON);
 926                 else if (tok == "no")
 927                         font.setUnderbar(LyXFont::OFF);
 928                 else if (tok == "default")
 929                         font.setUnderbar(LyXFont::INHERIT);
 930                 else
 931                         lex.printError("Unknown bar font flag "
 932                                        "`$$Token'");
 933         } else if (token == "\\noun") {
 934                 lex.next();
 935                 font.setNoun(font.setLyXMisc(lex.getString()));
 936         } else if (token == "\\color") {
 937                 lex.next();
 938                 font.setLyXColor(lex.getString());
 939         } else if (token == "\\InsetSpace" || token == "\\SpecialChar") {
 940                 LyXLayout_ptr const & layout = par.layout();
 941
 942                 // Insets don't make sense in a free-spacing context! ---Kayvan
 943                 if (layout->free_spacing || par.isFreeSpacing()) {
 944                         if (token == "\\InsetSpace")
 945                                 par.insertChar(par.size(), ' ', font, change);
 946                         else if (lex.isOK()) {
 947                                 lex.next();
 948                                 string const next_token = lex.getString();
 949                                 if (next_token == "\\-")
 950                                         par.insertChar(par.size(), '-', font, change);
 951                                 else {
 952                                         lex.printError("Token `$$Token' "
 953                                                        "is in free space "
 954                                                        "paragraph layout!");
 955                                 }
 956                         }
 957                 } else {
 958                         Inset * inset = 0;
 959                         if (token == "\\SpecialChar" )
 960                                 inset = new InsetSpecialChar;
 961                         else
 962                                 inset = new InsetSpace;
 963                         inset->read(&buf, lex);
 964                         par.insertInset(par.size(), inset, font, change);
 965                 }
 966         } else if (token == "\\i") {
 967                 Inset * inset = new InsetLatexAccent;
 968                 inset->read(&buf, lex);
 969                 par.insertInset(par.size(), inset, font, change);
 970         } else if (token == "\\backslash") {
 971                 par.insertChar(par.size(), '\\', font, change);
 972         } else if (token == "\\newline") {
 973                 Inset * inset = new InsetNewline;
 974                 inset->read(&buf, lex);
 975                 par.insertInset(par.size(), inset, font, change);
 976         } else if (token == "\\LyXTable") {
 977                 Inset * inset = new InsetTabular(buf);
 978                 inset->read(&buf, lex);
 979                 par.insertInset(par.size(), inset, font, change);
 980         } else if (token == "\\bibitem") {
 981                 InsetCommandParams p("bibitem", "dummy");
 982                 InsetBibitem * inset = new InsetBibitem(p);
 983                 inset->read(&buf, lex);
 984                 par.insertInset(par.size(), inset, font, change);
 985         } else if (token == "\\hfill") {
 986                 par.insertInset(par.size(), new InsetHFill(), font, change);
 987         } else if (token == "\\change_unchanged") {
 988                 // Hack ! Needed for empty paragraphs :/
 989                 // FIXME: is it still ??
 990                 if (!par.size())
 991                         par.cleanChanges();
 992                 change = Change(Change::UNCHANGED);
 993         } else if (token == "\\change_inserted") {
 994                 lex.nextToken();
 995                 istringstream is(STRCONV(lex.getString()));
 996                 int aid;
 997                 lyx::time_type ct;
 998                 is >> aid >> ct;
 999                 change = Change(Change::INSERTED, bp.author_map[aid], ct);
1000         } else if (token == "\\change_deleted") {
1001                 lex.nextToken();
1002                 istringstream is(STRCONV(lex.getString()));
1003                 int aid;
1004                 lyx::time_type ct;
1005                 is >> aid >> ct;
1006                 change = Change(Change::DELETED, bp.author_map[aid], ct);
1007         } else {
1008                 lex.eatLine();
1009                 string const s = bformat(_("Unknown token: %1$s %2$s\n"),
1010                         token, lex.getString());
1011                 // we can do this here this way because we're actually reading
1012                 // the buffer and don't care about LyXText right now.
1013                 par.insertInset(par.size(), new InsetError(s), font);
1014                 return 1;
1015         }
1016         return 0;
1017 }
1018
1019 }
1020
1021
1022 int readParagraph(Buffer & buf, Paragraph & par, LyXLex & lex)
1023 {
1024         int unknown = 0;
1025
1026         lex.nextToken();
1027         string token = lex.getString();
1028
1029         while (lex.isOK()) {
1030
1031                 unknown += readParToken(buf, par, lex, token);
1032
1033                 lex.nextToken();
1034                 token = lex.getString();
1035
1036                 if (token.empty())
1037                         continue;
1038
1039                 lyxerr[Debug::PARSER] << "Handling paragraph token: `"
1040                                       << token << '\'' << endl;
1041
1042                 // reached the next paragraph. FIXME: really we should
1043                 // change the file format to indicate the end of a par
1044                 // clearly, but for now, this hack will do
1045                 if (token == "\\layout" || token == "\\the_end"
1046                     || token == "\\end_inset" || token == "\\begin_deeper"
1047                     || token == "\\end_deeper") {
1048                         lex.pushToken(token);
1049                         break;
1050                 }
1051         }
1052
1053         return unknown;
1054 }
1055
1056
1057 LyXFont const outerFont(ParagraphList::iterator pit,
1058                         ParagraphList const & plist)
1059 {
1060         Paragraph::depth_type par_depth = pit->getDepth();
1061         LyXFont tmpfont(LyXFont::ALL_INHERIT);
1062
1063         // Resolve against environment font information
1064         while (pit != plist.end() &&
1065                par_depth && !tmpfont.resolved()) {
1066                 pit = outerHook(pit, plist);
1067                 if (pit != plist.end()) {
1068                         tmpfont.realize(pit->layout()->font);
1069                         par_depth = pit->getDepth();
1070                 }
1071         }
1072
1073         return tmpfont;
1074 }
1075
1076
1077 LyXFont const realizeFont(LyXFont const & font,
1078                           BufferParams const & params)
1079 {
1080         LyXTextClass const & tclass = params.getLyXTextClass();
1081         LyXFont tmpfont(font);
1082         tmpfont.realize(tclass.defaultfont());
1083         return tmpfont;
1084 }