src/Buffer.cpp

   1 /**
   2  * \file Buffer.cpp
   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  * \author Stefan Schimanski
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "Buffer.h"
  15
  16 #include "Author.h"
  17 #include "LayoutFile.h"
  18 #include "BiblioInfo.h"
  19 #include "BranchList.h"
  20 #include "buffer_funcs.h"
  21 #include "BufferList.h"
  22 #include "BufferParams.h"
  23 #include "Bullet.h"
  24 #include "Chktex.h"
  25 #include "Converter.h"
  26 #include "Counters.h"
  27 #include "DispatchResult.h"
  28 #include "DocIterator.h"
  29 #include "Encoding.h"
  30 #include "ErrorList.h"
  31 #include "Exporter.h"
  32 #include "Format.h"
  33 #include "FuncRequest.h"
  34 #include "FuncStatus.h"
  35 #include "IndicesList.h"
  36 #include "InsetIterator.h"
  37 #include "InsetList.h"
  38 #include "Language.h"
  39 #include "LaTeXFeatures.h"
  40 #include "LaTeX.h"
  41 #include "Layout.h"
  42 #include "Lexer.h"
  43 #include "LyXAction.h"
  44 #include "LyX.h"
  45 #include "LyXRC.h"
  46 #include "LyXVC.h"
  47 #include "output_docbook.h"
  48 #include "output.h"
  49 #include "output_latex.h"
  50 #include "output_xhtml.h"
  51 #include "output_plaintext.h"
  52 #include "Paragraph.h"
  53 #include "ParagraphParameters.h"
  54 #include "ParIterator.h"
  55 #include "PDFOptions.h"
  56 #include "SpellChecker.h"
  57 #include "sgml.h"
  58 #include "TexRow.h"
  59 #include "TexStream.h"
  60 #include "Text.h"
  61 #include "TextClass.h"
  62 #include "TocBackend.h"
  63 #include "Undo.h"
  64 #include "VCBackend.h"
  65 #include "version.h"
  66 #include "WordLangTuple.h"
  67 #include "WordList.h"
  68
  69 #include "insets/InsetBibitem.h"
  70 #include "insets/InsetBibtex.h"
  71 #include "insets/InsetBranch.h"
  72 #include "insets/InsetInclude.h"
  73 #include "insets/InsetText.h"
  74
  75 #include "mathed/MacroTable.h"
  76 #include "mathed/MathMacroTemplate.h"
  77 #include "mathed/MathSupport.h"
  78
  79 #include "frontends/alert.h"
  80 #include "frontends/Delegates.h"
  81 #include "frontends/WorkAreaManager.h"
  82
  83 #include "graphics/Previews.h"
  84
  85 #include "support/lassert.h"
  86 #include "support/convert.h"
  87 #include "support/debug.h"
  88 #include "support/docstring_list.h"
  89 #include "support/ExceptionMessage.h"
  90 #include "support/FileName.h"
  91 #include "support/FileNameList.h"
  92 #include "support/filetools.h"
  93 #include "support/ForkedCalls.h"
  94 #include "support/gettext.h"
  95 #include "support/gzstream.h"
  96 #include "support/lstrings.h"
  97 #include "support/lyxalgo.h"
  98 #include "support/os.h"
  99 #include "support/Package.h"
 100 #include "support/Path.h"
 101 #include "support/Systemcall.h"
 102 #include "support/textutils.h"
 103 #include "support/types.h"
 104
 105 #include <boost/bind.hpp>
 106 #include <boost/shared_ptr.hpp>
 107
 108 #include <algorithm>
 109 #include <fstream>
 110 #include <iomanip>
 111 #include <map>
 112 #include <set>
 113 #include <sstream>
 114 #include <stack>
 115 #include <vector>
 116
 117 using namespace std;
 118 using namespace lyx::support;
 119
 120 namespace lyx {
 121
 122 namespace Alert = frontend::Alert;
 123 namespace os = support::os;
 124
 125 namespace {
 126
 127 // Do not remove the comment below, so we get merge conflict in
 128 // independent branches. Instead add your own.
 129 int const LYX_FORMAT = 378; // ps: rev insetinfo
 130
 131 typedef map<string, bool> DepClean;
 132 typedef map<docstring, pair<InsetLabel const *, Buffer::References> > RefCache;
 133
 134 void showPrintError(string const & name)
 135 {
 136         docstring str = bformat(_("Could not print the document %1$s.\n"
 137                                             "Check that your printer is set up correctly."),
 138                              makeDisplayPath(name, 50));
 139         Alert::error(_("Print document failed"), str);
 140 }
 141
 142 } // namespace anon
 143
 144 class BufferSet : public std::set<Buffer const *> {};
 145
 146 class Buffer::Impl
 147 {
 148 public:
 149         Impl(Buffer * owner, FileName const & file, bool readonly, Buffer const * cloned_buffer);
 150
 151         ~Impl()
 152         {
 153                 if (wa_) {
 154                         wa_->closeAll();
 155                         delete wa_;
 156                 }
 157                 delete inset;
 158         }
 159
 160         /// search for macro in local (buffer) table or in children
 161         MacroData const * getBufferMacro(docstring const & name,
 162                 DocIterator const & pos) const;
 163
 164         /// Update macro table starting with position of it \param it in some
 165         /// text inset.
 166         void updateMacros(DocIterator & it, DocIterator & scope);
 167         ///
 168         void setLabel(ParIterator & it, UpdateType utype) const;
 169         ///
 170         void collectRelatives(BufferSet & bufs) const;
 171
 172         /** If we have branches that use the file suffix
 173             feature, return the file name with suffix appended.
 174         */
 175         support::FileName exportFileName() const;
 176
 177         Buffer * owner_;
 178
 179         BufferParams params;
 180         LyXVC lyxvc;
 181         FileName temppath;
 182         mutable TexRow texrow;
 183
 184         /// need to regenerate .tex?
 185         DepClean dep_clean;
 186
 187         /// is save needed?
 188         mutable bool lyx_clean;
 189
 190         /// is autosave needed?
 191         mutable bool bak_clean;
 192
 193         /// is this a unnamed file (New...)?
 194         bool unnamed;
 195
 196         /// buffer is r/o
 197         bool read_only;
 198
 199         /// name of the file the buffer is associated with.
 200         FileName filename;
 201
 202         /** Set to true only when the file is fully loaded.
 203          *  Used to prevent the premature generation of previews
 204          *  and by the citation inset.
 205          */
 206         bool file_fully_loaded;
 207
 208         ///
 209         mutable TocBackend toc_backend;
 210
 211         /// macro tables
 212         typedef pair<DocIterator, MacroData> ScopeMacro;
 213         typedef map<DocIterator, ScopeMacro> PositionScopeMacroMap;
 214         typedef map<docstring, PositionScopeMacroMap> NamePositionScopeMacroMap;
 215         /// map from the macro name to the position map,
 216         /// which maps the macro definition position to the scope and the MacroData.
 217         NamePositionScopeMacroMap macros;
 218         /// This seem to change the way Buffer::getMacro() works
 219         mutable bool macro_lock;
 220
 221         /// positions of child buffers in the buffer
 222         typedef map<Buffer const * const, DocIterator> BufferPositionMap;
 223         typedef pair<DocIterator, Buffer const *> ScopeBuffer;
 224         typedef map<DocIterator, ScopeBuffer> PositionScopeBufferMap;
 225         /// position of children buffers in this buffer
 226         BufferPositionMap children_positions;
 227         /// map from children inclusion positions to their scope and their buffer
 228         PositionScopeBufferMap position_to_children;
 229
 230         /// Container for all sort of Buffer dependant errors.
 231         map<string, ErrorList> errorLists;
 232
 233         /// timestamp and checksum used to test if the file has been externally
 234         /// modified. (Used to properly enable 'File->Revert to saved', bug 4114).
 235         time_t timestamp_;
 236         unsigned long checksum_;
 237
 238         ///
 239         frontend::WorkAreaManager * wa_;
 240         ///
 241         frontend::GuiBufferDelegate * gui_;
 242
 243         ///
 244         Undo undo_;
 245
 246         /// A cache for the bibfiles (including bibfiles of loaded child
 247         /// documents), needed for appropriate update of natbib labels.
 248         mutable support::FileNameList bibfiles_cache_;
 249
 250         // FIXME The caching mechanism could be improved. At present, we have a
 251         // cache for each Buffer, that caches all the bibliography info for that
 252         // Buffer. A more efficient solution would be to have a global cache per
 253         // file, and then to construct the Buffer's bibinfo from that.
 254         /// A cache for bibliography info
 255         mutable BiblioInfo bibinfo_;
 256         /// whether the bibinfo cache is valid
 257         bool bibinfo_cache_valid_;
 258         /// Cache of timestamps of .bib files
 259         map<FileName, time_t> bibfile_status_;
 260
 261         mutable RefCache ref_cache_;
 262
 263         /// our Text that should be wrapped in an InsetText
 264         InsetText * inset;
 265
 266         /// This is here to force the test to be done whenever parent_buffer
 267         /// is accessed.
 268         Buffer const * parent() const {
 269                 // if parent_buffer is not loaded, then it has been unloaded,
 270                 // which means that parent_buffer is an invalid pointer. So we
 271                 // set it to null in that case.
 272                 // however, the BufferList doesn't know about cloned buffers, so
 273                 // they will always be regarded as unloaded. in that case, we hope
 274                 // for the best.
 275                 if (!cloned_buffer_ && !theBufferList().isLoaded(parent_buffer))
 276                         parent_buffer = 0;
 277                 return parent_buffer;
 278         }
 279         ///
 280         void setParent(Buffer const * pb) {
 281                 if (parent_buffer && pb && parent_buffer != pb)
 282                         LYXERR0("Warning: a buffer should not have two parents!");
 283                 parent_buffer = pb;
 284         }
 285
 286         /// If non zero, this buffer is a clone of existing buffer \p cloned_buffer_
 287         /// This one is useful for preview detached in a thread.
 288         Buffer const * cloned_buffer_;
 289
 290 private:
 291         /// So we can force access via the accessors.
 292         mutable Buffer const * parent_buffer;
 293
 294 };
 295
 296
 297 /// Creates the per buffer temporary directory
 298 static FileName createBufferTmpDir()
 299 {
 300         static int count;
 301         // We are in our own directory.  Why bother to mangle name?
 302         // In fact I wrote this code to circumvent a problematic behaviour
 303         // (bug?) of EMX mkstemp().
 304         FileName tmpfl(package().temp_dir().absFilename() + "/lyx_tmpbuf" +
 305                 convert<string>(count++));
 306
 307         if (!tmpfl.createDirectory(0777)) {
 308                 throw ExceptionMessage(WarningException, _("Disk Error: "), bformat(
 309                         _("LyX could not create the temporary directory '%1$s' (Disk is full maybe?)"),
 310                         from_utf8(tmpfl.absFilename())));
 311         }
 312         return tmpfl;
 313 }
 314
 315
 316 Buffer::Impl::Impl(Buffer * owner, FileName const & file, bool readonly_,
 317         Buffer const * cloned_buffer)
 318         : owner_(owner), lyx_clean(true), bak_clean(true), unnamed(false),
 319           read_only(readonly_), filename(file), file_fully_loaded(false),
 320           toc_backend(owner), macro_lock(false), timestamp_(0),
 321           checksum_(0), wa_(0), gui_(0), undo_(*owner), bibinfo_cache_valid_(false),
 322           cloned_buffer_(cloned_buffer), parent_buffer(0)
 323 {
 324         if (!cloned_buffer_) {
 325                 temppath = createBufferTmpDir();
 326                 lyxvc.setBuffer(owner_);
 327                 if (use_gui)
 328                         wa_ = new frontend::WorkAreaManager;
 329                 return;
 330         }
 331         temppath = cloned_buffer_->d->temppath;
 332         file_fully_loaded = true;
 333         params = cloned_buffer_->d->params;
 334         bibfiles_cache_ = cloned_buffer_->d->bibfiles_cache_;
 335         bibinfo_ = cloned_buffer_->d->bibinfo_;
 336         bibinfo_cache_valid_ = cloned_buffer_->d->bibinfo_cache_valid_;
 337         bibfile_status_ = cloned_buffer_->d->bibfile_status_;
 338 }
 339
 340
 341 Buffer::Buffer(string const & file, bool readonly, Buffer const * cloned_buffer)
 342         : d(new Impl(this, FileName(file), readonly, cloned_buffer))
 343 {
 344         LYXERR(Debug::INFO, "Buffer::Buffer()");
 345         if (cloned_buffer) {
 346                 d->inset = new InsetText(*cloned_buffer->d->inset);
 347                 d->inset->setBuffer(*this);
 348                 // FIXME: optimize this loop somewhat, maybe by creating a new
 349                 // general recursive Inset::setId().
 350                 DocIterator it = doc_iterator_begin(this);
 351                 DocIterator cloned_it = doc_iterator_begin(cloned_buffer);
 352                 for (; !it.atEnd(); it.forwardPar(), cloned_it.forwardPar())
 353                         it.paragraph().setId(cloned_it.paragraph().id());
 354         } else
 355                 d->inset = new InsetText(this);
 356         d->inset->setAutoBreakRows(true);
 357         d->inset->getText(0)->setMacrocontextPosition(par_iterator_begin());
 358 }
 359
 360
 361 Buffer::~Buffer()
 362 {
 363         LYXERR(Debug::INFO, "Buffer::~Buffer()");
 364         // here the buffer should take care that it is
 365         // saved properly, before it goes into the void.
 366
 367         // GuiView already destroyed
 368         d->gui_ = 0;
 369
 370         if (isInternal()) {
 371                 // No need to do additional cleanups for internal buffer.
 372                 delete d;
 373                 return;
 374         }
 375
 376         // loop over children
 377         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
 378         Impl::BufferPositionMap::iterator end = d->children_positions.end();
 379         for (; it != end; ++it) {
 380                 Buffer * child = const_cast<Buffer *>(it->first);
 381                 if (d->cloned_buffer_)
 382                         delete child;
 383                 // The child buffer might have been closed already.
 384                 else if (theBufferList().isLoaded(child))
 385                         theBufferList().releaseChild(this, child);
 386         }
 387
 388         if (!isClean()) {
 389                 docstring msg = _("LyX attempted to close a document that had unsaved changes!\n");
 390                 msg += emergencyWrite();
 391                 Alert::warning(_("Attempting to close changed document!"), msg);
 392         }
 393
 394         // clear references to children in macro tables
 395         d->children_positions.clear();
 396         d->position_to_children.clear();
 397
 398         if (!d->cloned_buffer_ && !d->temppath.destroyDirectory()) {
 399                 Alert::warning(_("Could not remove temporary directory"),
 400                         bformat(_("Could not remove the temporary directory %1$s"),
 401                         from_utf8(d->temppath.absFilename())));
 402         }
 403
 404         // Remove any previewed LaTeX snippets associated with this buffer.
 405         thePreviews().removeLoader(*this);
 406
 407         delete d;
 408 }
 409
 410
 411 Buffer * Buffer::clone() const
 412 {
 413         Buffer * buffer_clone = new Buffer(fileName().absFilename(), false, this);
 414         buffer_clone->d->macro_lock = true;
 415         buffer_clone->d->children_positions.clear();
 416         // FIXME (Abdel 09/01/2010): this is too complicated. The whole children_positions and
 417         // math macro caches need to be rethought and simplified.
 418         // I am not sure wether we should handle Buffer cloning here or in BufferList.
 419         // Right now BufferList knows nothing about buffer clones.
 420         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
 421         Impl::BufferPositionMap::iterator end = d->children_positions.end();
 422         for (; it != end; ++it) {
 423                 DocIterator dit = it->second.clone(buffer_clone);
 424                 dit.setBuffer(buffer_clone);
 425                 Buffer * child = const_cast<Buffer *>(it->first);
 426                 Buffer * child_clone = child->clone();
 427                 Inset * inset = dit.nextInset();
 428                 LASSERT(inset && inset->lyxCode() == INCLUDE_CODE, continue);
 429                 InsetInclude * inset_inc = static_cast<InsetInclude *>(inset);
 430                 inset_inc->setChildBuffer(child_clone);
 431                 child_clone->d->setParent(buffer_clone);
 432                 buffer_clone->setChild(dit, child_clone);
 433         }
 434         buffer_clone->d->macro_lock = false;
 435         return buffer_clone;
 436 }
 437
 438
 439 bool Buffer::isClone() const
 440 {
 441         return d->cloned_buffer_;
 442 }
 443
 444
 445 void Buffer::changed(bool update_metrics) const
 446 {
 447         if (d->wa_)
 448                 d->wa_->redrawAll(update_metrics);
 449 }
 450
 451
 452 frontend::WorkAreaManager & Buffer::workAreaManager() const
 453 {
 454         LASSERT(d->wa_, /**/);
 455         return *d->wa_;
 456 }
 457
 458
 459 Text & Buffer::text() const
 460 {
 461         return d->inset->text();
 462 }
 463
 464
 465 Inset & Buffer::inset() const
 466 {
 467         return *d->inset;
 468 }
 469
 470
 471 BufferParams & Buffer::params()
 472 {
 473         return d->params;
 474 }
 475
 476
 477 BufferParams const & Buffer::params() const
 478 {
 479         return d->params;
 480 }
 481
 482
 483 ParagraphList & Buffer::paragraphs()
 484 {
 485         return text().paragraphs();
 486 }
 487
 488
 489 ParagraphList const & Buffer::paragraphs() const
 490 {
 491         return text().paragraphs();
 492 }
 493
 494
 495 LyXVC & Buffer::lyxvc()
 496 {
 497         return d->lyxvc;
 498 }
 499
 500
 501 LyXVC const & Buffer::lyxvc() const
 502 {
 503         return d->lyxvc;
 504 }
 505
 506
 507 string const Buffer::temppath() const
 508 {
 509         return d->temppath.absFilename();
 510 }
 511
 512
 513 TexRow & Buffer::texrow()
 514 {
 515         return d->texrow;
 516 }
 517
 518
 519 TexRow const & Buffer::texrow() const
 520 {
 521         return d->texrow;
 522 }
 523
 524
 525 TocBackend & Buffer::tocBackend() const
 526 {
 527         return d->toc_backend;
 528 }
 529
 530
 531 Undo & Buffer::undo()
 532 {
 533         return d->undo_;
 534 }
 535
 536
 537 void Buffer::setChild(DocIterator const & dit, Buffer * child)
 538 {
 539         d->children_positions[child] = dit;
 540 }
 541
 542
 543 string Buffer::latexName(bool const no_path) const
 544 {
 545         FileName latex_name =
 546                 makeLatexName(d->exportFileName());
 547         return no_path ? latex_name.onlyFileName()
 548                 : latex_name.absFilename();
 549 }
 550
 551
 552 FileName Buffer::Impl::exportFileName() const
 553 {
 554         docstring const branch_suffix =
 555                 params.branchlist().getFilenameSuffix();
 556         if (branch_suffix.empty())
 557                 return filename;
 558
 559         string const name = filename.onlyFileNameWithoutExt()
 560                 + to_utf8(branch_suffix);
 561         FileName res(filename.onlyPath().absFilename() + "/" + name);
 562         res.changeExtension(filename.extension());
 563
 564         return res;
 565 }
 566
 567
 568 string Buffer::logName(LogType * type) const
 569 {
 570         string const filename = latexName(false);
 571
 572         if (filename.empty()) {
 573                 if (type)
 574                         *type = latexlog;
 575                 return string();
 576         }
 577
 578         string const path = temppath();
 579
 580         FileName const fname(addName(temppath(),
 581                                      onlyFilename(changeExtension(filename,
 582                                                                   ".log"))));
 583
 584         // FIXME: how do we know this is the name of the build log?
 585         FileName const bname(
 586                 addName(path, onlyFilename(
 587                         changeExtension(filename,
 588                                         formats.extension(bufferFormat()) + ".out"))));
 589
 590         // Also consider the master buffer log file
 591         FileName masterfname = fname;
 592         LogType mtype;
 593         if (masterBuffer() != this) {
 594                 string const mlogfile = masterBuffer()->logName(&mtype);
 595                 masterfname = FileName(mlogfile);
 596         }
 597
 598         // If no Latex log or Build log is newer, show Build log
 599         if (bname.exists() &&
 600             ((!fname.exists() && !masterfname.exists())
 601              || (fname.lastModified() < bname.lastModified()
 602                  && masterfname.lastModified() < bname.lastModified()))) {
 603                 LYXERR(Debug::FILES, "Log name calculated as: " << bname);
 604                 if (type)
 605                         *type = buildlog;
 606                 return bname.absFilename();
 607         // If we have a newer master file log or only a master log, show this
 608         } else if (fname != masterfname
 609                    && (!fname.exists() && (masterfname.exists()
 610                    || fname.lastModified() < masterfname.lastModified()))) {
 611                 LYXERR(Debug::FILES, "Log name calculated as: " << masterfname);
 612                 if (type)
 613                         *type = mtype;
 614                 return masterfname.absFilename();
 615         }
 616         LYXERR(Debug::FILES, "Log name calculated as: " << fname);
 617         if (type)
 618                         *type = latexlog;
 619         return fname.absFilename();
 620 }
 621
 622
 623 void Buffer::setReadonly(bool const flag)
 624 {
 625         if (d->read_only != flag) {
 626                 d->read_only = flag;
 627                 changed(false);
 628         }
 629 }
 630
 631
 632 void Buffer::setFileName(string const & newfile)
 633 {
 634         d->filename = makeAbsPath(newfile);
 635         setReadonly(d->filename.isReadOnly());
 636         updateTitles();
 637 }
 638
 639
 640 int Buffer::readHeader(Lexer & lex)
 641 {
 642         int unknown_tokens = 0;
 643         int line = -1;
 644         int begin_header_line = -1;
 645
 646         // Initialize parameters that may be/go lacking in header:
 647         params().branchlist().clear();
 648         params().preamble.erase();
 649         params().options.erase();
 650         params().master.erase();
 651         params().float_placement.erase();
 652         params().paperwidth.erase();
 653         params().paperheight.erase();
 654         params().leftmargin.erase();
 655         params().rightmargin.erase();
 656         params().topmargin.erase();
 657         params().bottommargin.erase();
 658         params().headheight.erase();
 659         params().headsep.erase();
 660         params().footskip.erase();
 661         params().columnsep.erase();
 662         params().fontsCJK.erase();
 663         params().listings_params.clear();
 664         params().clearLayoutModules();
 665         params().clearRemovedModules();
 666         params().clearIncludedChildren();
 667         params().pdfoptions().clear();
 668         params().indiceslist().clear();
 669         params().backgroundcolor = lyx::rgbFromHexName("#ffffff");
 670
 671         for (int i = 0; i < 4; ++i) {
 672                 params().user_defined_bullet(i) = ITEMIZE_DEFAULTS[i];
 673                 params().temp_bullet(i) = ITEMIZE_DEFAULTS[i];
 674         }
 675
 676         ErrorList & errorList = d->errorLists["Parse"];
 677
 678         while (lex.isOK()) {
 679                 string token;
 680                 lex >> token;
 681
 682                 if (token.empty())
 683                         continue;
 684
 685                 if (token == "\\end_header")
 686                         break;
 687
 688                 ++line;
 689                 if (token == "\\begin_header") {
 690                         begin_header_line = line;
 691                         continue;
 692                 }
 693
 694                 LYXERR(Debug::PARSER, "Handling document header token: `"
 695                                       << token << '\'');
 696
 697                 string unknown = params().readToken(lex, token, d->filename.onlyPath());
 698                 if (!unknown.empty()) {
 699                         if (unknown[0] != '\\' && token == "\\textclass") {
 700                                 Alert::warning(_("Unknown document class"),
 701                        bformat(_("Using the default document class, because the "
 702                                               "class %1$s is unknown."), from_utf8(unknown)));
 703                         } else {
 704                                 ++unknown_tokens;
 705                                 docstring const s = bformat(_("Unknown token: "
 706                                                                         "%1$s %2$s\n"),
 707                                                          from_utf8(token),
 708                                                          lex.getDocString());
 709                                 errorList.push_back(ErrorItem(_("Document header error"),
 710                                         s, -1, 0, 0));
 711                         }
 712                 }
 713         }
 714         if (begin_header_line) {
 715                 docstring const s = _("\\begin_header is missing");
 716                 errorList.push_back(ErrorItem(_("Document header error"),
 717                         s, -1, 0, 0));
 718         }
 719
 720         params().makeDocumentClass();
 721
 722         return unknown_tokens;
 723 }
 724
 725
 726 // Uwe C. Schroeder
 727 // changed to be public and have one parameter
 728 // Returns true if "\end_document" is not read (Asger)
 729 bool Buffer::readDocument(Lexer & lex)
 730 {
 731         ErrorList & errorList = d->errorLists["Parse"];
 732         errorList.clear();
 733
 734         if (!lex.checkFor("\\begin_document")) {
 735                 docstring const s = _("\\begin_document is missing");
 736                 errorList.push_back(ErrorItem(_("Document header error"),
 737                         s, -1, 0, 0));
 738         }
 739
 740         // we are reading in a brand new document
 741         LASSERT(paragraphs().empty(), /**/);
 742
 743         readHeader(lex);
 744
 745         if (params().outputChanges) {
 746                 bool dvipost    = LaTeXFeatures::isAvailable("dvipost");
 747                 bool xcolorulem = LaTeXFeatures::isAvailable("ulem") &&
 748                                   LaTeXFeatures::isAvailable("xcolor");
 749
 750                 if (!dvipost && !xcolorulem) {
 751                         Alert::warning(_("Changes not shown in LaTeX output"),
 752                                        _("Changes will not be highlighted in LaTeX output, "
 753                                          "because neither dvipost nor xcolor/ulem are installed.\n"
 754                                          "Please install these packages or redefine "
 755                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 756                 } else if (!xcolorulem) {
 757                         Alert::warning(_("Changes not shown in LaTeX output"),
 758                                        _("Changes will not be highlighted in LaTeX output "
 759                                          "when using pdflatex, because xcolor and ulem are not installed.\n"
 760                                          "Please install both packages or redefine "
 761                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 762                 }
 763         }
 764
 765         if (!params().master.empty()) {
 766                 FileName const master_file = makeAbsPath(params().master,
 767                            onlyPath(absFileName()));
 768                 if (isLyXFilename(master_file.absFilename())) {
 769                         Buffer * master =
 770                                 checkAndLoadLyXFile(master_file, true);
 771                         if (master) {
 772                                 // necessary e.g. after a reload
 773                                 // to re-register the child (bug 5873)
 774                                 // FIXME: clean up updateMacros (here, only
 775                                 // child registering is needed).
 776                                 master->updateMacros();
 777                                 // set master as master buffer, but only
 778                                 // if we are a real child
 779                                 if (master->isChild(this))
 780                                         setParent(master);
 781                                 // if the master is not fully loaded
 782                                 // it is probably just loading this
 783                                 // child. No warning needed then.
 784                                 else if (master->isFullyLoaded())
 785                                         LYXERR0("The master '"
 786                                                 << params().master
 787                                                 << "' assigned to this document ("
 788                                                 << absFileName()
 789                                                 << ") does not include "
 790                                                 "this document. Ignoring the master assignment.");
 791                         }
 792                 }
 793         }
 794
 795         // assure we have a default index
 796         params().indiceslist().addDefault(B_("Index"));
 797
 798         // read main text
 799         bool const res = text().read(lex, errorList, d->inset);
 800
 801         usermacros.clear();
 802         updateMacros();
 803         updateMacroInstances();
 804         return res;
 805 }
 806
 807
 808 bool Buffer::readString(string const & s)
 809 {
 810         params().compressed = false;
 811
 812         // remove dummy empty par
 813         paragraphs().clear();
 814         Lexer lex;
 815         istringstream is(s);
 816         lex.setStream(is);
 817         FileName const name = FileName::tempName("Buffer_readString");
 818         switch (readFile(lex, name, true)) {
 819         case failure:
 820                 return false;
 821         case wrongversion: {
 822                 // We need to call lyx2lyx, so write the input to a file
 823                 ofstream os(name.toFilesystemEncoding().c_str());
 824                 os << s;
 825                 os.close();
 826                 return readFile(name);
 827         }
 828         case success:
 829                 break;
 830         }
 831
 832         return true;
 833 }
 834
 835
 836 bool Buffer::readFile(FileName const & filename)
 837 {
 838         FileName fname(filename);
 839
 840         params().compressed = fname.isZippedFile();
 841
 842         // remove dummy empty par
 843         paragraphs().clear();
 844         Lexer lex;
 845         lex.setFile(fname);
 846         if (readFile(lex, fname) != success)
 847                 return false;
 848
 849         return true;
 850 }
 851
 852
 853 bool Buffer::isFullyLoaded() const
 854 {
 855         return d->file_fully_loaded;
 856 }
 857
 858
 859 void Buffer::setFullyLoaded(bool value)
 860 {
 861         d->file_fully_loaded = value;
 862 }
 863
 864
 865 Buffer::ReadStatus Buffer::readFile(Lexer & lex, FileName const & filename,
 866                 bool fromstring)
 867 {
 868         LASSERT(!filename.empty(), /**/);
 869
 870         // the first (non-comment) token _must_ be...
 871         if (!lex.checkFor("\\lyxformat")) {
 872                 Alert::error(_("Document format failure"),
 873                              bformat(_("%1$s is not a readable LyX document."),
 874                                        from_utf8(filename.absFilename())));
 875                 return failure;
 876         }
 877
 878         string tmp_format;
 879         lex >> tmp_format;
 880         //lyxerr << "LyX Format: `" << tmp_format << '\'' << endl;
 881         // if present remove ".," from string.
 882         size_t dot = tmp_format.find_first_of(".,");
 883         //lyxerr << "           dot found at " << dot << endl;
 884         if (dot != string::npos)
 885                         tmp_format.erase(dot, 1);
 886         int const file_format = convert<int>(tmp_format);
 887         //lyxerr << "format: " << file_format << endl;
 888
 889         // save timestamp and checksum of the original disk file, making sure
 890         // to not overwrite them with those of the file created in the tempdir
 891         // when it has to be converted to the current format.
 892         if (!d->checksum_) {
 893                 // Save the timestamp and checksum of disk file. If filename is an
 894                 // emergency file, save the timestamp and checksum of the original lyx file
 895                 // because isExternallyModified will check for this file. (BUG4193)
 896                 string diskfile = filename.absFilename();
 897                 if (suffixIs(diskfile, ".emergency"))
 898                         diskfile = diskfile.substr(0, diskfile.size() - 10);
 899                 saveCheckSum(FileName(diskfile));
 900         }
 901
 902         if (file_format != LYX_FORMAT) {
 903
 904                 if (fromstring)
 905                         // lyx2lyx would fail
 906                         return wrongversion;
 907
 908                 FileName const tmpfile = FileName::tempName("Buffer_readFile");
 909                 if (tmpfile.empty()) {
 910                         Alert::error(_("Conversion failed"),
 911                                      bformat(_("%1$s is from a different"
 912                                               " version of LyX, but a temporary"
 913                                               " file for converting it could"
 914                                               " not be created."),
 915                                               from_utf8(filename.absFilename())));
 916                         return failure;
 917                 }
 918                 FileName const lyx2lyx = libFileSearch("lyx2lyx", "lyx2lyx");
 919                 if (lyx2lyx.empty()) {
 920                         Alert::error(_("Conversion script not found"),
 921                                      bformat(_("%1$s is from a different"
 922                                                " version of LyX, but the"
 923                                                " conversion script lyx2lyx"
 924                                                " could not be found."),
 925                                                from_utf8(filename.absFilename())));
 926                         return failure;
 927                 }
 928                 ostringstream command;
 929                 command << os::python()
 930                         << ' ' << quoteName(lyx2lyx.toFilesystemEncoding())
 931                         << " -t " << convert<string>(LYX_FORMAT)
 932                         << " -o " << quoteName(tmpfile.toFilesystemEncoding())
 933                         << ' ' << quoteName(filename.toSafeFilesystemEncoding());
 934                 string const command_str = command.str();
 935
 936                 LYXERR(Debug::INFO, "Running '" << command_str << '\'');
 937
 938                 cmd_ret const ret = runCommand(command_str);
 939                 if (ret.first != 0) {
 940                         if (file_format < LYX_FORMAT)
 941                                 Alert::error(_("Conversion script failed"),
 942                                      bformat(_("%1$s is from an older version"
 943                                               " of LyX, but the lyx2lyx script"
 944                                               " failed to convert it."),
 945                                               from_utf8(filename.absFilename())));
 946                         else
 947                                 Alert::error(_("Conversion script failed"),
 948                                      bformat(_("%1$s is from a newer version"
 949                                               " of LyX and cannot be converted by the"
 950                                                                 " lyx2lyx script."),
 951                                               from_utf8(filename.absFilename())));
 952                         return failure;
 953                 } else {
 954                         bool const ret = readFile(tmpfile);
 955                         // Do stuff with tmpfile name and buffer name here.
 956                         return ret ? success : failure;
 957                 }
 958
 959         }
 960
 961         if (readDocument(lex)) {
 962                 Alert::error(_("Document format failure"),
 963                              bformat(_("%1$s ended unexpectedly, which means"
 964                                                     " that it is probably corrupted."),
 965                                        from_utf8(filename.absFilename())));
 966                 return failure;
 967         }
 968
 969         d->file_fully_loaded = true;
 970         return success;
 971 }
 972
 973
 974 // Should probably be moved to somewhere else: BufferView? GuiView?
 975 bool Buffer::save() const
 976 {
 977         // We don't need autosaves in the immediate future. (Asger)
 978         resetAutosaveTimers();
 979
 980         FileName backupName;
 981         bool madeBackup = false;
 982
 983         // make a backup if the file already exists
 984         if (lyxrc.make_backup && fileName().exists()) {
 985                 backupName = FileName(absFileName() + '~');
 986                 if (!lyxrc.backupdir_path.empty()) {
 987                         string const mangledName =
 988                                 subst(subst(backupName.absFilename(), '/', '!'), ':', '!');
 989                         backupName = FileName(addName(lyxrc.backupdir_path,
 990                                                       mangledName));
 991                 }
 992                 if (fileName().copyTo(backupName)) {
 993                         madeBackup = true;
 994                 } else {
 995                         Alert::error(_("Backup failure"),
 996                                      bformat(_("Cannot create backup file %1$s.\n"
 997                                                "Please check whether the directory exists and is writeable."),
 998                                              from_utf8(backupName.absFilename())));
 999                         //LYXERR(Debug::DEBUG, "Fs error: " << fe.what());
1000                 }
1001         }
1002
1003         // ask if the disk file has been externally modified (use checksum method)
1004         if (fileName().exists() && isExternallyModified(checksum_method)) {
1005                 docstring const file = makeDisplayPath(absFileName(), 20);
1006                 docstring text = bformat(_("Document %1$s has been externally modified. Are you sure "
1007                                                              "you want to overwrite this file?"), file);
1008                 int const ret = Alert::prompt(_("Overwrite modified file?"),
1009                         text, 1, 1, _("&Overwrite"), _("&Cancel"));
1010                 if (ret == 1)
1011                         return false;
1012         }
1013
1014         if (writeFile(d->filename)) {
1015                 markClean();
1016                 return true;
1017         } else {
1018                 // Saving failed, so backup is not backup
1019                 if (madeBackup)
1020                         backupName.moveTo(d->filename);
1021                 return false;
1022         }
1023 }
1024
1025
1026 bool Buffer::writeFile(FileName const & fname) const
1027 {
1028         if (d->read_only && fname == d->filename)
1029                 return false;
1030
1031         bool retval = false;
1032
1033         docstring const str = bformat(_("Saving document %1$s..."),
1034                 makeDisplayPath(fname.absFilename()));
1035         message(str);
1036
1037         string const encoded_fname = fname.toSafeFilesystemEncoding(os::CREATE);
1038
1039         if (params().compressed) {
1040                 gz::ogzstream ofs(encoded_fname.c_str(), ios::out|ios::trunc);
1041                 retval = ofs && write(ofs);
1042         } else {
1043                 ofstream ofs(encoded_fname.c_str(), ios::out|ios::trunc);
1044                 retval = ofs && write(ofs);
1045         }
1046
1047         if (!retval) {
1048                 message(str + _(" could not write file!"));
1049                 return false;
1050         }
1051
1052         removeAutosaveFile();
1053
1054         saveCheckSum(d->filename);
1055         message(str + _(" done."));
1056
1057         return true;
1058 }
1059
1060
1061 docstring Buffer::emergencyWrite()
1062 {
1063         // No need to save if the buffer has not changed.
1064         if (isClean())
1065                 return docstring();
1066
1067         string const doc = isUnnamed() ? onlyFilename(absFileName()) : absFileName();
1068
1069         docstring user_message = bformat(
1070                 _("LyX: Attempting to save document %1$s\n"), from_utf8(doc));
1071
1072         // We try to save three places:
1073         // 1) Same place as document. Unless it is an unnamed doc.
1074         if (!isUnnamed()) {
1075                 string s = absFileName();
1076                 s += ".emergency";
1077                 LYXERR0("  " << s);
1078                 if (writeFile(FileName(s))) {
1079                         markClean();
1080                         user_message += bformat(_("  Saved to %1$s. Phew.\n"), from_utf8(s));
1081                         return user_message;
1082                 } else {
1083                         user_message += _("  Save failed! Trying again...\n");
1084                 }
1085         }
1086
1087         // 2) In HOME directory.
1088         string s = addName(package().home_dir().absFilename(), absFileName());
1089         s += ".emergency";
1090         lyxerr << ' ' << s << endl;
1091         if (writeFile(FileName(s))) {
1092                 markClean();
1093                 user_message += bformat(_("  Saved to %1$s. Phew.\n"), from_utf8(s));
1094                 return user_message;
1095         }
1096
1097         user_message += _("  Save failed! Trying yet again...\n");
1098
1099         // 3) In "/tmp" directory.
1100         // MakeAbsPath to prepend the current
1101         // drive letter on OS/2
1102         s = addName(package().temp_dir().absFilename(), absFileName());
1103         s += ".emergency";
1104         lyxerr << ' ' << s << endl;
1105         if (writeFile(FileName(s))) {
1106                 markClean();
1107                 user_message += bformat(_("  Saved to %1$s. Phew.\n"), from_utf8(s));
1108                 return user_message;
1109         }
1110
1111         user_message += _("  Save failed! Bummer. Document is lost.");
1112         // Don't try again.
1113         markClean();
1114         return user_message;
1115 }
1116
1117
1118 bool Buffer::write(ostream & ofs) const
1119 {
1120 #ifdef HAVE_LOCALE
1121         // Use the standard "C" locale for file output.
1122         ofs.imbue(locale::classic());
1123 #endif
1124
1125         // The top of the file should not be written by params().
1126
1127         // write out a comment in the top of the file
1128         ofs << "#LyX " << lyx_version
1129             << " created this file. For more info see http://www.lyx.org/\n"
1130             << "\\lyxformat " << LYX_FORMAT << "\n"
1131             << "\\begin_document\n";
1132
1133         /// For each author, set 'used' to true if there is a change
1134         /// by this author in the document; otherwise set it to 'false'.
1135         AuthorList::Authors::const_iterator a_it = params().authors().begin();
1136         AuthorList::Authors::const_iterator a_end = params().authors().end();
1137         for (; a_it != a_end; ++a_it)
1138                 a_it->setUsed(false);
1139
1140         ParIterator const end = const_cast<Buffer *>(this)->par_iterator_end();
1141         ParIterator it = const_cast<Buffer *>(this)->par_iterator_begin();
1142         for ( ; it != end; ++it)
1143                 it->checkAuthors(params().authors());
1144
1145         // now write out the buffer parameters.
1146         ofs << "\\begin_header\n";
1147         params().writeFile(ofs);
1148         ofs << "\\end_header\n";
1149
1150         // write the text
1151         ofs << "\n\\begin_body\n";
1152         text().write(ofs);
1153         ofs << "\n\\end_body\n";
1154
1155         // Write marker that shows file is complete
1156         ofs << "\\end_document" << endl;
1157
1158         // Shouldn't really be needed....
1159         //ofs.close();
1160
1161         // how to check if close went ok?
1162         // Following is an attempt... (BE 20001011)
1163
1164         // good() returns false if any error occured, including some
1165         //        formatting error.
1166         // bad()  returns true if something bad happened in the buffer,
1167         //        which should include file system full errors.
1168
1169         bool status = true;
1170         if (!ofs) {
1171                 status = false;
1172                 lyxerr << "File was not closed properly." << endl;
1173         }
1174
1175         return status;
1176 }
1177
1178
1179 bool Buffer::makeLaTeXFile(FileName const & fname,
1180                            string const & original_path,
1181                            OutputParams const & runparams_in,
1182                            bool output_preamble, bool output_body) const
1183 {
1184         OutputParams runparams = runparams_in;
1185         if (params().useXetex)
1186                 runparams.flavor = OutputParams::XETEX;
1187
1188         string const encoding = runparams.encoding->iconvName();
1189         LYXERR(Debug::LATEX, "makeLaTeXFile encoding: " << encoding << "...");
1190
1191         ofdocstream ofs;
1192         try { ofs.reset(encoding); }
1193         catch (iconv_codecvt_facet_exception & e) {
1194                 lyxerr << "Caught iconv exception: " << e.what() << endl;
1195                 Alert::error(_("Iconv software exception Detected"), bformat(_("Please "
1196                         "verify that the support software for your encoding (%1$s) is "
1197                         "properly installed"), from_ascii(encoding)));
1198                 return false;
1199         }
1200         if (!openFileWrite(ofs, fname))
1201                 return false;
1202
1203         //TexStream ts(ofs.rdbuf(), &texrow());
1204         ErrorList & errorList = d->errorLists["Export"];
1205         errorList.clear();
1206         bool failed_export = false;
1207         try {
1208                 d->texrow.reset();
1209                 writeLaTeXSource(ofs, original_path,
1210                       runparams, output_preamble, output_body);
1211         }
1212         catch (EncodingException & e) {
1213                 odocstringstream ods;
1214                 ods.put(e.failed_char);
1215                 ostringstream oss;
1216                 oss << "0x" << hex << e.failed_char << dec;
1217                 docstring msg = bformat(_("Could not find LaTeX command for character '%1$s'"
1218                                           " (code point %2$s)"),
1219                                           ods.str(), from_utf8(oss.str()));
1220                 errorList.push_back(ErrorItem(msg, _("Some characters of your document are probably not "
1221                                 "representable in the chosen encoding.\n"
1222                                 "Changing the document encoding to utf8 could help."),
1223                                 e.par_id, e.pos, e.pos + 1));
1224                 failed_export = true;
1225         }
1226         catch (iconv_codecvt_facet_exception & e) {
1227                 errorList.push_back(ErrorItem(_("iconv conversion failed"),
1228                         _(e.what()), -1, 0, 0));
1229                 failed_export = true;
1230         }
1231         catch (exception const & e) {
1232                 errorList.push_back(ErrorItem(_("conversion failed"),
1233                         _(e.what()), -1, 0, 0));
1234                 failed_export = true;
1235         }
1236         catch (...) {
1237                 lyxerr << "Caught some really weird exception..." << endl;
1238                 lyx_exit(1);
1239         }
1240
1241         ofs.close();
1242         if (ofs.fail()) {
1243                 failed_export = true;
1244                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1245         }
1246
1247         errors("Export");
1248         return !failed_export;
1249 }
1250
1251
1252 void Buffer::writeLaTeXSource(odocstream & os,
1253                            string const & original_path,
1254                            OutputParams const & runparams_in,
1255                            bool const output_preamble, bool const output_body) const
1256 {
1257         // The child documents, if any, shall be already loaded at this point.
1258
1259         OutputParams runparams = runparams_in;
1260
1261         // Classify the unicode characters appearing in math insets
1262         Encodings::initUnicodeMath(*this);
1263
1264         // validate the buffer.
1265         LYXERR(Debug::LATEX, "  Validating buffer...");
1266         LaTeXFeatures features(*this, params(), runparams);
1267         validate(features);
1268         LYXERR(Debug::LATEX, "  Buffer validation done.");
1269
1270         // The starting paragraph of the coming rows is the
1271         // first paragraph of the document. (Asger)
1272         if (output_preamble && runparams.nice) {
1273                 os << "%% LyX " << lyx_version << " created this file.  "
1274                         "For more info, see http://www.lyx.org/.\n"
1275                         "%% Do not edit unless you really know what "
1276                         "you are doing.\n";
1277                 d->texrow.newline();
1278                 d->texrow.newline();
1279         }
1280         LYXERR(Debug::INFO, "lyx document header finished");
1281
1282         // Don't move this behind the parent_buffer=0 code below,
1283         // because then the macros will not get the right "redefinition"
1284         // flag as they don't see the parent macros which are output before.
1285         updateMacros();
1286
1287         // fold macros if possible, still with parent buffer as the
1288         // macros will be put in the prefix anyway.
1289         updateMacroInstances();
1290
1291         // There are a few differences between nice LaTeX and usual files:
1292         // usual is \batchmode and has a
1293         // special input@path to allow the including of figures
1294         // with either \input or \includegraphics (what figinsets do).
1295         // input@path is set when the actual parameter
1296         // original_path is set. This is done for usual tex-file, but not
1297         // for nice-latex-file. (Matthias 250696)
1298         // Note that input@path is only needed for something the user does
1299         // in the preamble, included .tex files or ERT, files included by
1300         // LyX work without it.
1301         if (output_preamble) {
1302                 if (!runparams.nice) {
1303                         // code for usual, NOT nice-latex-file
1304                         os << "\\batchmode\n"; // changed
1305                         // from \nonstopmode
1306                         d->texrow.newline();
1307                 }
1308                 if (!original_path.empty()) {
1309                         // FIXME UNICODE
1310                         // We don't know the encoding of inputpath
1311                         docstring const inputpath = from_utf8(support::latex_path(original_path));
1312                         docstring uncodable_glyphs;
1313                         Encoding const * const enc = runparams.encoding;
1314                         if (enc) {
1315                                 for (size_t n = 0; n < inputpath.size(); ++n) {
1316                                         docstring const glyph =
1317                                                 docstring(1, inputpath[n]);
1318                                         if (enc->latexChar(inputpath[n], true) != glyph) {
1319                                                 LYXERR0("Uncodable character '"
1320                                                         << glyph
1321                                                         << "' in input path!");
1322                                                 uncodable_glyphs += glyph;
1323                                         }
1324                                 }
1325                         }
1326
1327                         // warn user if we found uncodable glyphs.
1328                         if (!uncodable_glyphs.empty()) {
1329                                 frontend::Alert::warning(_("Uncodable character in file path"),
1330                                                 support::bformat(_("The path of your document\n"
1331                                                   "(%1$s)\n"
1332                                                   "contains glyphs that are unknown in the\n"
1333                                                   "current document encoding (namely %2$s).\n"
1334                                                   "This will likely result in incomplete output.\n\n"
1335                                                   "Chose an appropriate document encoding (such as utf8)\n"
1336                                                   "or change the file path name."), inputpath, uncodable_glyphs));
1337                         } else {
1338                                 os << "\\makeatletter\n"
1339                                    << "\\def\\input@path{{"
1340                                    << inputpath << "/}}\n"
1341                                    << "\\makeatother\n";
1342                                 d->texrow.newline();
1343                                 d->texrow.newline();
1344                                 d->texrow.newline();
1345                         }
1346                 }
1347
1348                 // get parent macros (if this buffer has a parent) which will be
1349                 // written at the document begin further down.
1350                 MacroSet parentMacros;
1351                 listParentMacros(parentMacros, features);
1352
1353                 // Write the preamble
1354                 runparams.use_babel = params().writeLaTeX(os, features,
1355                                                           d->texrow,
1356                                                           d->filename.onlyPath());
1357
1358                 runparams.use_japanese = features.isRequired("japanese");
1359
1360                 if (!output_body)
1361                         return;
1362
1363                 // make the body.
1364                 os << "\\begin{document}\n";
1365                 d->texrow.newline();
1366
1367                 // output the parent macros
1368                 MacroSet::iterator it = parentMacros.begin();
1369                 MacroSet::iterator end = parentMacros.end();
1370                 for (; it != end; ++it) {
1371                         int num_lines = (*it)->write(os, true);
1372                         d->texrow.newlines(num_lines);
1373                 }
1374
1375         } // output_preamble
1376
1377         d->texrow.start(paragraphs().begin()->id(), 0);
1378
1379         LYXERR(Debug::INFO, "preamble finished, now the body.");
1380
1381         // if we are doing a real file with body, even if this is the
1382         // child of some other buffer, let's cut the link here.
1383         // This happens for example if only a child document is printed.
1384         Buffer const * save_parent = 0;
1385         if (output_preamble) {
1386                 save_parent = d->parent();
1387                 d->setParent(0);
1388         }
1389
1390         // the real stuff
1391         latexParagraphs(*this, text(), os, d->texrow, runparams);
1392
1393         // Restore the parenthood if needed
1394         if (output_preamble)
1395                 d->setParent(save_parent);
1396
1397         // add this just in case after all the paragraphs
1398         os << endl;
1399         d->texrow.newline();
1400
1401         if (output_preamble) {
1402                 os << "\\end{document}\n";
1403                 d->texrow.newline();
1404                 LYXERR(Debug::LATEX, "makeLaTeXFile...done");
1405         } else {
1406                 LYXERR(Debug::LATEX, "LaTeXFile for inclusion made.");
1407         }
1408         runparams_in.encoding = runparams.encoding;
1409
1410         // Just to be sure. (Asger)
1411         d->texrow.newline();
1412
1413         LYXERR(Debug::INFO, "Finished making LaTeX file.");
1414         LYXERR(Debug::INFO, "Row count was " << d->texrow.rows() - 1 << '.');
1415 }
1416
1417
1418 bool Buffer::isLatex() const
1419 {
1420         return params().documentClass().outputType() == LATEX;
1421 }
1422
1423
1424 bool Buffer::isLiterate() const
1425 {
1426         return params().documentClass().outputType() == LITERATE;
1427 }
1428
1429
1430 bool Buffer::isDocBook() const
1431 {
1432         return params().documentClass().outputType() == DOCBOOK;
1433 }
1434
1435
1436 void Buffer::makeDocBookFile(FileName const & fname,
1437                               OutputParams const & runparams,
1438                               bool const body_only) const
1439 {
1440         LYXERR(Debug::LATEX, "makeDocBookFile...");
1441
1442         ofdocstream ofs;
1443         if (!openFileWrite(ofs, fname))
1444                 return;
1445
1446         writeDocBookSource(ofs, fname.absFilename(), runparams, body_only);
1447
1448         ofs.close();
1449         if (ofs.fail())
1450                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1451 }
1452
1453
1454 void Buffer::writeDocBookSource(odocstream & os, string const & fname,
1455                              OutputParams const & runparams,
1456                              bool const only_body) const
1457 {
1458         LaTeXFeatures features(*this, params(), runparams);
1459         validate(features);
1460
1461         d->texrow.reset();
1462
1463         DocumentClass const & tclass = params().documentClass();
1464         string const top_element = tclass.latexname();
1465
1466         if (!only_body) {
1467                 if (runparams.flavor == OutputParams::XML)
1468                         os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
1469
1470                 // FIXME UNICODE
1471                 os << "<!DOCTYPE " << from_ascii(top_element) << ' ';
1472
1473                 // FIXME UNICODE
1474                 if (! tclass.class_header().empty())
1475                         os << from_ascii(tclass.class_header());
1476                 else if (runparams.flavor == OutputParams::XML)
1477                         os << "PUBLIC \"-//OASIS//DTD DocBook XML//EN\" "
1478                             << "\"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd\"";
1479                 else
1480                         os << " PUBLIC \"-//OASIS//DTD DocBook V4.2//EN\"";
1481
1482                 docstring preamble = from_utf8(params().preamble);
1483                 if (runparams.flavor != OutputParams::XML ) {
1484                         preamble += "<!ENTITY % output.print.png \"IGNORE\">\n";
1485                         preamble += "<!ENTITY % output.print.pdf \"IGNORE\">\n";
1486                         preamble += "<!ENTITY % output.print.eps \"IGNORE\">\n";
1487                         preamble += "<!ENTITY % output.print.bmp \"IGNORE\">\n";
1488                 }
1489
1490                 string const name = runparams.nice
1491                         ? changeExtension(absFileName(), ".sgml") : fname;
1492                 preamble += features.getIncludedFiles(name);
1493                 preamble += features.getLyXSGMLEntities();
1494
1495                 if (!preamble.empty()) {
1496                         os << "\n [ " << preamble << " ]";
1497                 }
1498                 os << ">\n\n";
1499         }
1500
1501         string top = top_element;
1502         top += " lang=\"";
1503         if (runparams.flavor == OutputParams::XML)
1504                 top += params().language->code();
1505         else
1506                 top += params().language->code().substr(0, 2);
1507         top += '"';
1508
1509         if (!params().options.empty()) {
1510                 top += ' ';
1511                 top += params().options;
1512         }
1513
1514         os << "<!-- " << ((runparams.flavor == OutputParams::XML)? "XML" : "SGML")
1515             << " file was created by LyX " << lyx_version
1516             << "\n  See http://www.lyx.org/ for more information -->\n";
1517
1518         params().documentClass().counters().reset();
1519
1520         updateMacros();
1521
1522         sgml::openTag(os, top);
1523         os << '\n';
1524         docbookParagraphs(text(), *this, os, runparams);
1525         sgml::closeTag(os, top_element);
1526 }
1527
1528
1529 void Buffer::makeLyXHTMLFile(FileName const & fname,
1530                               OutputParams const & runparams,
1531                               bool const body_only) const
1532 {
1533         LYXERR(Debug::LATEX, "makeLyXHTMLFile...");
1534
1535         ofdocstream ofs;
1536         if (!openFileWrite(ofs, fname))
1537                 return;
1538
1539         writeLyXHTMLSource(ofs, runparams, body_only);
1540
1541         ofs.close();
1542         if (ofs.fail())
1543                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1544 }
1545
1546
1547 void Buffer::writeLyXHTMLSource(odocstream & os,
1548                              OutputParams const & runparams,
1549                              bool const only_body) const
1550 {
1551         LaTeXFeatures features(*this, params(), runparams);
1552         validate(features);
1553         updateBuffer(UpdateMaster, OutputUpdate);
1554         checkBibInfoCache();
1555         d->bibinfo_.makeCitationLabels(*this);
1556         updateMacros();
1557         updateMacroInstances();
1558
1559         if (!only_body) {
1560                 os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
1561                 os << "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1 plus MathML 2.0//EN\" \"http://www.w3.org/TR/MathML2/dtd/xhtml-math11-f.dtd\">\n";
1562                 // FIXME Language should be set properly.
1563                 os << "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n";
1564                 os << "<head>\n";
1565                 // FIXME Presumably need to set this right
1566                 os << "<meta http-equiv=\"Content-type\" content=\"text/html;charset=UTF-8\" />\n";
1567                 os << "<title>" << features.htmlTitle() << "</title>\n";
1568
1569                 os << "\n<!-- Text Class Preamble -->\n"
1570                         << features.getTClassHTMLPreamble()
1571                         << "\n<!-- Premable Snippets -->\n"
1572                         << from_utf8(features.getPreambleSnippets());
1573
1574                 os << "\n<!-- Layout-provided Styles -->\n";
1575                 docstring const styleinfo = features.getTClassHTMLStyles();
1576                 if (!styleinfo.empty()) {
1577                         os << "<style type='text/css'>\n"
1578                                 << styleinfo
1579                                 << "</style>\n";
1580                 }
1581                 os << "</head>\n<body>\n";
1582         }
1583
1584         XHTMLStream xs(os);
1585         params().documentClass().counters().reset();
1586         xhtmlParagraphs(text(), *this, xs, runparams);
1587         if (!only_body)
1588                 os << "</body>\n</html>\n";
1589 }
1590
1591
1592 // chktex should be run with these flags disabled: 3, 22, 25, 30, 38(?)
1593 // Other flags: -wall -v0 -x
1594 int Buffer::runChktex()
1595 {
1596         setBusy(true);
1597
1598         // get LaTeX-Filename
1599         FileName const path(temppath());
1600         string const name = addName(path.absFilename(), latexName());
1601         string const org_path = filePath();
1602
1603         PathChanger p(path); // path to LaTeX file
1604         message(_("Running chktex..."));
1605
1606         // Generate the LaTeX file if neccessary
1607         OutputParams runparams(&params().encoding());
1608         runparams.flavor = OutputParams::LATEX;
1609         runparams.nice = false;
1610         runparams.linelen = lyxrc.plaintext_linelen;
1611         makeLaTeXFile(FileName(name), org_path, runparams);
1612
1613         TeXErrors terr;
1614         Chktex chktex(lyxrc.chktex_command, onlyFilename(name), filePath());
1615         int const res = chktex.run(terr); // run chktex
1616
1617         if (res == -1) {
1618                 Alert::error(_("chktex failure"),
1619                              _("Could not run chktex successfully."));
1620         } else if (res > 0) {
1621                 ErrorList & errlist = d->errorLists["ChkTeX"];
1622                 errlist.clear();
1623                 bufferErrors(terr, errlist);
1624         }
1625
1626         setBusy(false);
1627
1628         errors("ChkTeX");
1629
1630         return res;
1631 }
1632
1633
1634 void Buffer::validate(LaTeXFeatures & features) const
1635 {
1636         params().validate(features);
1637
1638         updateMacros();
1639
1640         for_each(paragraphs().begin(), paragraphs().end(),
1641                  boost::bind(&Paragraph::validate, _1, boost::ref(features)));
1642
1643         if (lyxerr.debugging(Debug::LATEX)) {
1644                 features.showStruct();
1645         }
1646 }
1647
1648
1649 void Buffer::getLabelList(vector<docstring> & list) const
1650 {
1651         // If this is a child document, use the parent's list instead.
1652         Buffer const * const pbuf = d->parent();
1653         if (pbuf) {
1654                 pbuf->getLabelList(list);
1655                 return;
1656         }
1657
1658         list.clear();
1659         Toc & toc = d->toc_backend.toc("label");
1660         TocIterator toc_it = toc.begin();
1661         TocIterator end = toc.end();
1662         for (; toc_it != end; ++toc_it) {
1663                 if (toc_it->depth() == 0)
1664                         list.push_back(toc_it->str());
1665         }
1666 }
1667
1668
1669 void Buffer::updateBibfilesCache(UpdateScope scope) const
1670 {
1671         // If this is a child document, use the parent's cache instead.
1672         Buffer const * const pbuf = d->parent();
1673         if (pbuf && scope != UpdateChildOnly) {
1674                 pbuf->updateBibfilesCache();
1675                 return;
1676         }
1677
1678         d->bibfiles_cache_.clear();
1679         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
1680                 if (it->lyxCode() == BIBTEX_CODE) {
1681                         InsetBibtex const & inset =
1682                                 static_cast<InsetBibtex const &>(*it);
1683                         support::FileNameList const bibfiles = inset.getBibFiles();
1684                         d->bibfiles_cache_.insert(d->bibfiles_cache_.end(),
1685                                 bibfiles.begin(),
1686                                 bibfiles.end());
1687                 } else if (it->lyxCode() == INCLUDE_CODE) {
1688                         InsetInclude & inset =
1689                                 static_cast<InsetInclude &>(*it);
1690                         inset.updateBibfilesCache();
1691                         support::FileNameList const & bibfiles =
1692                                         inset.getBibfilesCache();
1693                         d->bibfiles_cache_.insert(d->bibfiles_cache_.end(),
1694                                 bibfiles.begin(),
1695                                 bibfiles.end());
1696                 }
1697         }
1698         // the bibinfo cache is now invalid
1699         d->bibinfo_cache_valid_ = false;
1700 }
1701
1702
1703 void Buffer::invalidateBibinfoCache()
1704 {
1705         d->bibinfo_cache_valid_ = false;
1706 }
1707
1708
1709 support::FileNameList const & Buffer::getBibfilesCache(UpdateScope scope) const
1710 {
1711         // If this is a child document, use the parent's cache instead.
1712         Buffer const * const pbuf = d->parent();
1713         if (pbuf && scope != UpdateChildOnly)
1714                 return pbuf->getBibfilesCache();
1715
1716         // We update the cache when first used instead of at loading time.
1717         if (d->bibfiles_cache_.empty())
1718                 const_cast<Buffer *>(this)->updateBibfilesCache(scope);
1719
1720         return d->bibfiles_cache_;
1721 }
1722
1723
1724 BiblioInfo const & Buffer::masterBibInfo() const
1725 {
1726         // if this is a child document and the parent is already loaded
1727         // use the parent's list instead  [ale990412]
1728         Buffer const * const tmp = masterBuffer();
1729         LASSERT(tmp, /**/);
1730         if (tmp != this)
1731                 return tmp->masterBibInfo();
1732         return localBibInfo();
1733 }
1734
1735
1736 BiblioInfo const & Buffer::localBibInfo() const
1737 {
1738         return d->bibinfo_;
1739 }
1740
1741
1742 void Buffer::checkBibInfoCache() const
1743 {
1744         support::FileNameList const & bibfilesCache = getBibfilesCache();
1745         // compare the cached timestamps with the actual ones.
1746         support::FileNameList::const_iterator ei = bibfilesCache.begin();
1747         support::FileNameList::const_iterator en = bibfilesCache.end();
1748         for (; ei != en; ++ ei) {
1749                 time_t lastw = ei->lastModified();
1750                 time_t prevw = d->bibfile_status_[*ei];
1751                 if (lastw != prevw) {
1752                         d->bibinfo_cache_valid_ = false;
1753                         d->bibfile_status_[*ei] = lastw;
1754                 }
1755         }
1756
1757         if (!d->bibinfo_cache_valid_) {
1758                 d->bibinfo_.clear();
1759                 for (InsetIterator it = inset_iterator_begin(inset()); it; ++it)
1760                         it->fillWithBibKeys(d->bibinfo_, it);
1761                 d->bibinfo_cache_valid_ = true;
1762         }
1763 }
1764
1765
1766 bool Buffer::isDepClean(string const & name) const
1767 {
1768         DepClean::const_iterator const it = d->dep_clean.find(name);
1769         if (it == d->dep_clean.end())
1770                 return true;
1771         return it->second;
1772 }
1773
1774
1775 void Buffer::markDepClean(string const & name)
1776 {
1777         d->dep_clean[name] = true;
1778 }
1779
1780
1781 bool Buffer::isExportableFormat(string const & format) const
1782 {
1783                 typedef vector<Format const *> Formats;
1784                 Formats formats;
1785                 formats = exportableFormats(true);
1786                 Formats::const_iterator fit = formats.begin();
1787                 Formats::const_iterator end = formats.end();
1788                 for (; fit != end ; ++fit) {
1789                         if ((*fit)->name() == format)
1790                                 return true;
1791                 }
1792                 return false;
1793 }
1794
1795
1796 bool Buffer::getStatus(FuncRequest const & cmd, FuncStatus & flag)
1797 {
1798         if (isInternal()) {
1799                 // FIXME? if there is an Buffer LFUN that can be dispatched even
1800                 // if internal, put a switch '(cmd.action)' here.
1801                 return false;
1802         }
1803
1804         bool enable = true;
1805
1806         switch (cmd.action) {
1807
1808                 case LFUN_BUFFER_TOGGLE_READ_ONLY:
1809                         flag.setOnOff(isReadonly());
1810                         break;
1811
1812                 // FIXME: There is need for a command-line import.
1813                 //case LFUN_BUFFER_IMPORT:
1814
1815                 case LFUN_BUFFER_AUTO_SAVE:
1816                         break;
1817
1818                 case LFUN_BUFFER_EXPORT_CUSTOM:
1819                         // FIXME: Nothing to check here?
1820                         break;
1821
1822                 case LFUN_BUFFER_EXPORT: {
1823                         docstring const arg = cmd.argument();
1824                         enable = arg == "custom" || isExportable(to_utf8(arg));
1825                         if (!enable)
1826                                 flag.message(bformat(
1827                                         _("Don't know how to export to format: %1$s"), arg));
1828                         break;
1829                 }
1830
1831                 case LFUN_BUFFER_CHKTEX:
1832                         enable = isLatex() && !lyxrc.chktex_command.empty();
1833                         break;
1834
1835                 case LFUN_BUILD_PROGRAM:
1836                         enable = isExportable("program");
1837                         break;
1838
1839                 case LFUN_BRANCH_ACTIVATE:
1840                 case LFUN_BRANCH_DEACTIVATE: {
1841                         BranchList const & branchList = params().branchlist();
1842                         docstring const branchName = cmd.argument();
1843                         enable = !branchName.empty() && branchList.find(branchName);
1844                         break;
1845                 }
1846
1847                 case LFUN_BRANCH_ADD:
1848                 case LFUN_BRANCHES_RENAME:
1849                 case LFUN_BUFFER_PRINT:
1850                         // if no Buffer is present, then of course we won't be called!
1851                         break;
1852
1853                 case LFUN_BUFFER_LANGUAGE:
1854                         enable = !isReadonly();
1855                         break;
1856
1857                 default:
1858                         return false;
1859         }
1860         flag.setEnabled(enable);
1861         return true;
1862 }
1863
1864
1865 void Buffer::dispatch(string const & command, DispatchResult & result)
1866 {
1867         return dispatch(lyxaction.lookupFunc(command), result);
1868 }
1869
1870
1871 // NOTE We can end up here even if we have no GUI, because we are called
1872 // by LyX::exec to handled command-line requests. So we may need to check
1873 // whether we have a GUI or not. The boolean use_gui holds this information.
1874 void Buffer::dispatch(FuncRequest const & func, DispatchResult & dr)
1875 {
1876         if (isInternal()) {
1877                 // FIXME? if there is an Buffer LFUN that can be dispatched even
1878                 // if internal, put a switch '(cmd.action)' here.
1879                 dr.dispatched(false);
1880                 return;
1881         }
1882         string const argument = to_utf8(func.argument());
1883         // We'll set this back to false if need be.
1884         bool dispatched = true;
1885         undo().beginUndoGroup();
1886
1887         switch (func.action) {
1888         case LFUN_BUFFER_TOGGLE_READ_ONLY:
1889                 if (lyxvc().inUse())
1890                         lyxvc().toggleReadOnly();
1891                 else
1892                         setReadonly(!isReadonly());
1893                 break;
1894
1895         case LFUN_BUFFER_EXPORT: {
1896                 bool success = doExport(argument, false, false);
1897                 dr.setError(!success);
1898                 if (!success)
1899                         dr.setMessage(bformat(_("Error exporting to format: %1$s."),
1900                                               func.argument()));
1901                 break;
1902         }
1903
1904         case LFUN_BUILD_PROGRAM:
1905                 doExport("program", true, false);
1906                 break;
1907
1908         case LFUN_BUFFER_CHKTEX:
1909                 runChktex();
1910                 break;
1911
1912         case LFUN_BUFFER_EXPORT_CUSTOM: {
1913                 string format_name;
1914                 string command = split(argument, format_name, ' ');
1915                 Format const * format = formats.getFormat(format_name);
1916                 if (!format) {
1917                         lyxerr << "Format \"" << format_name
1918                                 << "\" not recognized!"
1919                                 << endl;
1920                         break;
1921                 }
1922
1923                 // The name of the file created by the conversion process
1924                 string filename;
1925
1926                 // Output to filename
1927                 if (format->name() == "lyx") {
1928                         string const latexname = latexName(false);
1929                         filename = changeExtension(latexname,
1930                                 format->extension());
1931                         filename = addName(temppath(), filename);
1932
1933                         if (!writeFile(FileName(filename)))
1934                                 break;
1935
1936                 } else {
1937                         doExport(format_name, true, false, filename);
1938                 }
1939
1940                 // Substitute $$FName for filename
1941                 if (!contains(command, "$$FName"))
1942                         command = "( " + command + " ) < $$FName";
1943                 command = subst(command, "$$FName", filename);
1944
1945                 // Execute the command in the background
1946                 Systemcall call;
1947                 call.startscript(Systemcall::DontWait, command);
1948                 break;
1949         }
1950
1951         // FIXME: There is need for a command-line import.
1952         /*
1953         case LFUN_BUFFER_IMPORT:
1954                 doImport(argument);
1955                 break;
1956         */
1957
1958         case LFUN_BUFFER_AUTO_SAVE:
1959                 autoSave();
1960                 break;
1961
1962         case LFUN_BRANCH_ADD: {
1963                 docstring const branch_name = func.argument();
1964                 if (branch_name.empty()) {
1965                         dispatched = false;
1966                         break;
1967                 }
1968                 BranchList & branch_list = params().branchlist();
1969                 Branch * branch = branch_list.find(branch_name);
1970                 if (branch) {
1971                         LYXERR0("Branch " << branch_name << " already exists.");
1972                         dr.setError(true);
1973                         docstring const msg =
1974                                 bformat(_("Branch \"%1$s\" already exists."), branch_name);
1975                         dr.setMessage(msg);
1976                 } else {
1977                         branch_list.add(branch_name);
1978                         branch = branch_list.find(branch_name);
1979                         string const x11hexname = X11hexname(branch->color());
1980                         docstring const str = branch_name + ' ' + from_ascii(x11hexname);
1981                         lyx::dispatch(FuncRequest(LFUN_SET_COLOR, str));
1982                         dr.setError(false);
1983                         dr.update(Update::Force);
1984                 }
1985                 break;
1986         }
1987
1988         case LFUN_BRANCH_ACTIVATE:
1989         case LFUN_BRANCH_DEACTIVATE: {
1990                 BranchList & branchList = params().branchlist();
1991                 docstring const branchName = func.argument();
1992                 // the case without a branch name is handled elsewhere
1993                 if (branchName.empty()) {
1994                         dispatched = false;
1995                         break;
1996                 }
1997                 Branch * branch = branchList.find(branchName);
1998                 if (!branch) {
1999                         LYXERR0("Branch " << branchName << " does not exist.");
2000                         dr.setError(true);
2001                         docstring const msg =
2002                                 bformat(_("Branch \"%1$s\" does not exist."), branchName);
2003                         dr.setMessage(msg);
2004                 } else {
2005                         branch->setSelected(func.action == LFUN_BRANCH_ACTIVATE);
2006                         dr.setError(false);
2007                         dr.update(Update::Force);
2008                 }
2009                 break;
2010         }
2011
2012         case LFUN_BRANCHES_RENAME: {
2013                 if (func.argument().empty())
2014                         break;
2015
2016                 docstring const oldname = from_utf8(func.getArg(0));
2017                 docstring const newname = from_utf8(func.getArg(1));
2018                 InsetIterator it  = inset_iterator_begin(inset());
2019                 InsetIterator const end = inset_iterator_end(inset());
2020                 bool success = false;
2021                 for (; it != end; ++it) {
2022                         if (it->lyxCode() == BRANCH_CODE) {
2023                                 InsetBranch & ins = static_cast<InsetBranch &>(*it);
2024                                 if (ins.branch() == oldname) {
2025                                         undo().recordUndo(it);
2026                                         ins.rename(newname);
2027                                         success = true;
2028                                         continue;
2029                                 }
2030                         }
2031                         if (it->lyxCode() == INCLUDE_CODE) {
2032                                 // get buffer of external file
2033                                 InsetInclude const & ins =
2034                                         static_cast<InsetInclude const &>(*it);
2035                                 Buffer * child = ins.getChildBuffer();
2036                                 if (!child)
2037                                         continue;
2038                                 child->dispatch(func, dr);
2039                         }
2040                 }
2041
2042                 if (success)
2043                         dr.update(Update::Force);
2044                 break;
2045         }
2046
2047         case LFUN_BUFFER_PRINT: {
2048                 // we'll assume there's a problem until we succeed
2049                 dr.setError(true);
2050                 string target = func.getArg(0);
2051                 string target_name = func.getArg(1);
2052                 string command = func.getArg(2);
2053
2054                 if (target.empty()
2055                     || target_name.empty()
2056                     || command.empty()) {
2057                         LYXERR0("Unable to parse " << func.argument());
2058                         docstring const msg =
2059                                 bformat(_("Unable to parse \"%1$s\""), func.argument());
2060                         dr.setMessage(msg);
2061                         break;
2062                 }
2063                 if (target != "printer" && target != "file") {
2064                         LYXERR0("Unrecognized target \"" << target << '"');
2065                         docstring const msg =
2066                                 bformat(_("Unrecognized target \"%1$s\""), from_utf8(target));
2067                         dr.setMessage(msg);
2068                         break;
2069                 }
2070
2071                 bool const update_unincluded =
2072                                 params().maintain_unincluded_children
2073                                 && !params().getIncludedChildren().empty();
2074                 if (!doExport("dvi", true, update_unincluded)) {
2075                         showPrintError(absFileName());
2076                         dr.setMessage(_("Error exporting to DVI."));
2077                         break;
2078                 }
2079
2080                 // Push directory path.
2081                 string const path = temppath();
2082                 // Prevent the compiler from optimizing away p
2083                 FileName pp(path);
2084                 PathChanger p(pp);
2085
2086                 // there are three cases here:
2087                 // 1. we print to a file
2088                 // 2. we print directly to a printer
2089                 // 3. we print using a spool command (print to file first)
2090                 Systemcall one;
2091                 int res = 0;
2092                 string const dviname = changeExtension(latexName(true), "dvi");
2093
2094                 if (target == "printer") {
2095                         if (!lyxrc.print_spool_command.empty()) {
2096                                 // case 3: print using a spool
2097                                 string const psname = changeExtension(dviname,".ps");
2098                                 command += ' ' + lyxrc.print_to_file
2099                                         + quoteName(psname)
2100                                         + ' '
2101                                         + quoteName(dviname);
2102
2103                                 string command2 = lyxrc.print_spool_command + ' ';
2104                                 if (target_name != "default") {
2105                                         command2 += lyxrc.print_spool_printerprefix
2106                                                 + target_name
2107                                                 + ' ';
2108                                 }
2109                                 command2 += quoteName(psname);
2110                                 // First run dvips.
2111                                 // If successful, then spool command
2112                                 res = one.startscript(Systemcall::Wait, command);
2113
2114                                 if (res == 0) {
2115                                         // If there's no GUI, we have to wait on this command. Otherwise,
2116                                         // LyX deletes the temporary directory, and with it the spooled
2117                                         // file, before it can be printed!!
2118                                         Systemcall::Starttype stype = use_gui ?
2119                                                 Systemcall::DontWait : Systemcall::Wait;
2120                                         res = one.startscript(stype, command2);
2121                                 }
2122                         } else {
2123                                 // case 2: print directly to a printer
2124                                 if (target_name != "default")
2125                                         command += ' ' + lyxrc.print_to_printer + target_name + ' ';
2126                                 // as above....
2127                                 Systemcall::Starttype stype = use_gui ?
2128                                         Systemcall::DontWait : Systemcall::Wait;
2129                                 res = one.startscript(stype, command + quoteName(dviname));
2130                         }
2131
2132                 } else {
2133                         // case 1: print to a file
2134                         FileName const filename(makeAbsPath(target_name, filePath()));
2135                         FileName const dvifile(makeAbsPath(dviname, path));
2136                         if (filename.exists()) {
2137                                 docstring text = bformat(
2138                                         _("The file %1$s already exists.\n\n"
2139                                           "Do you want to overwrite that file?"),
2140                                         makeDisplayPath(filename.absFilename()));
2141                                 if (Alert::prompt(_("Overwrite file?"),
2142                                                   text, 0, 1, _("&Overwrite"), _("&Cancel")) != 0)
2143                                         break;
2144                         }
2145                         command += ' ' + lyxrc.print_to_file
2146                                 + quoteName(filename.toFilesystemEncoding())
2147                                 + ' '
2148                                 + quoteName(dvifile.toFilesystemEncoding());
2149                         // as above....
2150                         Systemcall::Starttype stype = use_gui ?
2151                                 Systemcall::DontWait : Systemcall::Wait;
2152                         res = one.startscript(stype, command);
2153                 }
2154
2155                 if (res == 0)
2156                         dr.setError(false);
2157                 else {
2158                         dr.setMessage(_("Error running external commands."));
2159                         showPrintError(absFileName());
2160                 }
2161                 break;
2162         }
2163
2164         case LFUN_BUFFER_LANGUAGE: {
2165                 Language const * oldL = params().language;
2166                 Language const * newL = languages.getLanguage(argument);
2167                 if (!newL || oldL == newL)
2168                         break;
2169                 if (oldL->rightToLeft() == newL->rightToLeft() && !isMultiLingual())
2170                         changeLanguage(oldL, newL);
2171                 break;
2172         }
2173
2174         default:
2175                 dispatched = false;
2176                 break;
2177         }
2178         dr.dispatched(dispatched);
2179         undo().endUndoGroup();
2180 }
2181
2182
2183 void Buffer::changeLanguage(Language const * from, Language const * to)
2184 {
2185         LASSERT(from, /**/);
2186         LASSERT(to, /**/);
2187
2188         for_each(par_iterator_begin(),
2189                  par_iterator_end(),
2190                  bind(&Paragraph::changeLanguage, _1, params(), from, to));
2191 }
2192
2193
2194 bool Buffer::isMultiLingual() const
2195 {
2196         ParConstIterator end = par_iterator_end();
2197         for (ParConstIterator it = par_iterator_begin(); it != end; ++it)
2198                 if (it->isMultiLingual(params()))
2199                         return true;
2200
2201         return false;
2202 }
2203
2204
2205 std::set<Language const *> Buffer::getLanguages() const
2206 {
2207         std::set<Language const *> languages;
2208         getLanguages(languages);
2209         return languages;
2210 }
2211
2212
2213 void Buffer::getLanguages(std::set<Language const *> & languages) const
2214 {
2215         ParConstIterator end = par_iterator_end();
2216         // add the buffer language, even if it's not actively used
2217         languages.insert(language());
2218         // iterate over the paragraphs
2219         for (ParConstIterator it = par_iterator_begin(); it != end; ++it)
2220                 it->getLanguages(languages);
2221         // also children
2222         std::vector<Buffer *> clist = getChildren();
2223         for (vector<Buffer *>::const_iterator cit = clist.begin();
2224              cit != clist.end(); ++cit)
2225                 (*cit)->getLanguages(languages);
2226 }
2227
2228
2229 DocIterator Buffer::getParFromID(int const id) const
2230 {
2231         Buffer * buf = const_cast<Buffer *>(this);
2232         if (id < 0) {
2233                 // John says this is called with id == -1 from undo
2234                 lyxerr << "getParFromID(), id: " << id << endl;
2235                 return doc_iterator_end(buf);
2236         }
2237
2238         for (DocIterator it = doc_iterator_begin(buf); !it.atEnd(); it.forwardPar())
2239                 if (it.paragraph().id() == id)
2240                         return it;
2241
2242         return doc_iterator_end(buf);
2243 }
2244
2245
2246 bool Buffer::hasParWithID(int const id) const
2247 {
2248         return !getParFromID(id).atEnd();
2249 }
2250
2251
2252 ParIterator Buffer::par_iterator_begin()
2253 {
2254         return ParIterator(doc_iterator_begin(this));
2255 }
2256
2257
2258 ParIterator Buffer::par_iterator_end()
2259 {
2260         return ParIterator(doc_iterator_end(this));
2261 }
2262
2263
2264 ParConstIterator Buffer::par_iterator_begin() const
2265 {
2266         return ParConstIterator(doc_iterator_begin(this));
2267 }
2268
2269
2270 ParConstIterator Buffer::par_iterator_end() const
2271 {
2272         return ParConstIterator(doc_iterator_end(this));
2273 }
2274
2275
2276 Language const * Buffer::language() const
2277 {
2278         return params().language;
2279 }
2280
2281
2282 docstring const Buffer::B_(string const & l10n) const
2283 {
2284         return params().B_(l10n);
2285 }
2286
2287
2288 bool Buffer::isClean() const
2289 {
2290         return d->lyx_clean;
2291 }
2292
2293
2294 bool Buffer::isExternallyModified(CheckMethod method) const
2295 {
2296         LASSERT(d->filename.exists(), /**/);
2297         // if method == timestamp, check timestamp before checksum
2298         return (method == checksum_method
2299                 || d->timestamp_ != d->filename.lastModified())
2300                 && d->checksum_ != d->filename.checksum();
2301 }
2302
2303
2304 void Buffer::saveCheckSum(FileName const & file) const
2305 {
2306         if (file.exists()) {
2307                 d->timestamp_ = file.lastModified();
2308                 d->checksum_ = file.checksum();
2309         } else {
2310                 // in the case of save to a new file.
2311                 d->timestamp_ = 0;
2312                 d->checksum_ = 0;
2313         }
2314 }
2315
2316
2317 void Buffer::markClean() const
2318 {
2319         if (!d->lyx_clean) {
2320                 d->lyx_clean = true;
2321                 updateTitles();
2322         }
2323         // if the .lyx file has been saved, we don't need an
2324         // autosave
2325         d->bak_clean = true;
2326 }
2327
2328
2329 void Buffer::setUnnamed(bool flag)
2330 {
2331         d->unnamed = flag;
2332 }
2333
2334
2335 bool Buffer::isUnnamed() const
2336 {
2337         return d->unnamed;
2338 }
2339
2340
2341 /// \note
2342 /// Don't check unnamed, here: isInternal() is used in
2343 /// newBuffer(), where the unnamed flag has not been set by anyone
2344 /// yet. Also, for an internal buffer, there should be no need for
2345 /// retrieving fileName() nor for checking if it is unnamed or not.
2346 bool Buffer::isInternal() const
2347 {
2348         return fileName().extension() == "internal";
2349 }
2350
2351
2352 void Buffer::markDirty()
2353 {
2354         if (d->lyx_clean) {
2355                 d->lyx_clean = false;
2356                 updateTitles();
2357         }
2358         d->bak_clean = false;
2359
2360         DepClean::iterator it = d->dep_clean.begin();
2361         DepClean::const_iterator const end = d->dep_clean.end();
2362
2363         for (; it != end; ++it)
2364                 it->second = false;
2365 }
2366
2367
2368 FileName Buffer::fileName() const
2369 {
2370         return d->filename;
2371 }
2372
2373
2374 string Buffer::absFileName() const
2375 {
2376         return d->filename.absFilename();
2377 }
2378
2379
2380 string Buffer::filePath() const
2381 {
2382         return d->filename.onlyPath().absFilename() + "/";
2383 }
2384
2385
2386 bool Buffer::isReadonly() const
2387 {
2388         return d->read_only;
2389 }
2390
2391
2392 void Buffer::setParent(Buffer const * buffer)
2393 {
2394         // Avoids recursive include.
2395         d->setParent(buffer == this ? 0 : buffer);
2396         updateMacros();
2397 }
2398
2399
2400 Buffer const * Buffer::parent() const
2401 {
2402         return d->parent();
2403 }
2404
2405
2406 void Buffer::Impl::collectRelatives(BufferSet & bufs) const
2407 {
2408         bufs.insert(owner_);
2409         if (parent())
2410                 parent()->d->collectRelatives(bufs);
2411
2412         // loop over children
2413         BufferPositionMap::const_iterator it = children_positions.begin();
2414         BufferPositionMap::const_iterator end = children_positions.end();
2415         for (; it != end; ++it)
2416                 bufs.insert(const_cast<Buffer *>(it->first));
2417 }
2418
2419
2420 std::vector<Buffer const *> Buffer::allRelatives() const
2421 {
2422         BufferSet bufs;
2423         d->collectRelatives(bufs);
2424         BufferSet::iterator it = bufs.begin();
2425         std::vector<Buffer const *> ret;
2426         for (; it != bufs.end(); ++it)
2427                 ret.push_back(*it);
2428         return ret;
2429 }
2430
2431
2432 Buffer const * Buffer::masterBuffer() const
2433 {
2434         Buffer const * const pbuf = d->parent();
2435         if (!pbuf)
2436                 return this;
2437
2438         return pbuf->masterBuffer();
2439 }
2440
2441
2442 bool Buffer::isChild(Buffer * child) const
2443 {
2444         return d->children_positions.find(child) != d->children_positions.end();
2445 }
2446
2447
2448 DocIterator Buffer::firstChildPosition(Buffer const * child)
2449 {
2450         Impl::BufferPositionMap::iterator it;
2451         it = d->children_positions.find(child);
2452         if (it == d->children_positions.end())
2453                 return DocIterator(this);
2454         return it->second;
2455 }
2456
2457
2458 void Buffer::getChildren(std::vector<Buffer *> & clist, bool grand_children) const
2459 {
2460         // loop over children
2461         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
2462         Impl::BufferPositionMap::iterator end = d->children_positions.end();
2463         for (; it != end; ++it) {
2464                 Buffer * child = const_cast<Buffer *>(it->first);
2465                 clist.push_back(child);
2466                 if (grand_children) {
2467                         // there might be grandchildren
2468                         std::vector<Buffer *> glist = child->getChildren();
2469                         for (vector<Buffer *>::const_iterator git = glist.begin();
2470                                  git != glist.end(); ++git)
2471                                 clist.push_back(*git);
2472                 }
2473         }
2474 }
2475
2476
2477 std::vector<Buffer *> Buffer::getChildren(bool grand_children) const
2478 {
2479         std::vector<Buffer *> v;
2480         getChildren(v, grand_children);
2481         return v;
2482 }
2483
2484
2485 template<typename M>
2486 typename M::const_iterator greatest_below(M & m, typename M::key_type const & x)
2487 {
2488         if (m.empty())
2489                 return m.end();
2490
2491         typename M::const_iterator it = m.lower_bound(x);
2492         if (it == m.begin())
2493                 return m.end();
2494
2495         it--;
2496         return it;
2497 }
2498
2499
2500 MacroData const * Buffer::Impl::getBufferMacro(docstring const & name,
2501                                          DocIterator const & pos) const
2502 {
2503         LYXERR(Debug::MACROS, "Searching for " << to_ascii(name) << " at " << pos);
2504
2505         // if paragraphs have no macro context set, pos will be empty
2506         if (pos.empty())
2507                 return 0;
2508
2509         // we haven't found anything yet
2510         DocIterator bestPos = owner_->par_iterator_begin();
2511         MacroData const * bestData = 0;
2512
2513         // find macro definitions for name
2514         NamePositionScopeMacroMap::const_iterator nameIt = macros.find(name);
2515         if (nameIt != macros.end()) {
2516                 // find last definition in front of pos or at pos itself
2517                 PositionScopeMacroMap::const_iterator it
2518                         = greatest_below(nameIt->second, pos);
2519                 if (it != nameIt->second.end()) {
2520                         while (true) {
2521                                 // scope ends behind pos?
2522                                 if (pos < it->second.first) {
2523                                         // Looks good, remember this. If there
2524                                         // is no external macro behind this,
2525                                         // we found the right one already.
2526                                         bestPos = it->first;
2527                                         bestData = &it->second.second;
2528                                         break;
2529                                 }
2530
2531                                 // try previous macro if there is one
2532                                 if (it == nameIt->second.begin())
2533                                         break;
2534                                 it--;
2535                         }
2536                 }
2537         }
2538
2539         // find macros in included files
2540         PositionScopeBufferMap::const_iterator it
2541                 = greatest_below(position_to_children, pos);
2542         if (it == position_to_children.end())
2543                 // no children before
2544                 return bestData;
2545
2546         while (true) {
2547                 // do we know something better (i.e. later) already?
2548                 if (it->first < bestPos )
2549                         break;
2550
2551                 // scope ends behind pos?
2552                 if (pos < it->second.first) {
2553                         // look for macro in external file
2554                         macro_lock = true;
2555                         MacroData const * data
2556                                 = it->second.second->getMacro(name, false);
2557                         macro_lock = false;
2558                         if (data) {
2559                                 bestPos = it->first;
2560                                 bestData = data;
2561                                 break;
2562                         }
2563                 }
2564
2565                 // try previous file if there is one
2566                 if (it == position_to_children.begin())
2567                         break;
2568                 --it;
2569         }
2570
2571         // return the best macro we have found
2572         return bestData;
2573 }
2574
2575
2576 MacroData const * Buffer::getMacro(docstring const & name,
2577         DocIterator const & pos, bool global) const
2578 {
2579         if (d->macro_lock)
2580                 return 0;
2581
2582         // query buffer macros
2583         MacroData const * data = d->getBufferMacro(name, pos);
2584         if (data != 0)
2585                 return data;
2586
2587         // If there is a master buffer, query that
2588         Buffer const * const pbuf = d->parent();
2589         if (pbuf) {
2590                 d->macro_lock = true;
2591                 MacroData const * macro = pbuf->getMacro(
2592                         name, *this, false);
2593                 d->macro_lock = false;
2594                 if (macro)
2595                         return macro;
2596         }
2597
2598         if (global) {
2599                 data = MacroTable::globalMacros().get(name);
2600                 if (data != 0)
2601                         return data;
2602         }
2603
2604         return 0;
2605 }
2606
2607
2608 MacroData const * Buffer::getMacro(docstring const & name, bool global) const
2609 {
2610         // set scope end behind the last paragraph
2611         DocIterator scope = par_iterator_begin();
2612         scope.pit() = scope.lastpit() + 1;
2613
2614         return getMacro(name, scope, global);
2615 }
2616
2617
2618 MacroData const * Buffer::getMacro(docstring const & name,
2619         Buffer const & child, bool global) const
2620 {
2621         // look where the child buffer is included first
2622         Impl::BufferPositionMap::iterator it = d->children_positions.find(&child);
2623         if (it == d->children_positions.end())
2624                 return 0;
2625
2626         // check for macros at the inclusion position
2627         return getMacro(name, it->second, global);
2628 }
2629
2630
2631 void Buffer::Impl::updateMacros(DocIterator & it, DocIterator & scope)
2632 {
2633         pit_type const lastpit = it.lastpit();
2634
2635         // look for macros in each paragraph
2636         while (it.pit() <= lastpit) {
2637                 Paragraph & par = it.paragraph();
2638
2639                 // iterate over the insets of the current paragraph
2640                 InsetList const & insets = par.insetList();
2641                 InsetList::const_iterator iit = insets.begin();
2642                 InsetList::const_iterator end = insets.end();
2643                 for (; iit != end; ++iit) {
2644                         it.pos() = iit->pos;
2645
2646                         // is it a nested text inset?
2647                         if (iit->inset->asInsetText()) {
2648                                 // Inset needs its own scope?
2649                                 InsetText const * itext = iit->inset->asInsetText();
2650                                 bool newScope = itext->isMacroScope();
2651
2652                                 // scope which ends just behind the inset
2653                                 DocIterator insetScope = it;
2654                                 ++insetScope.pos();
2655
2656                                 // collect macros in inset
2657                                 it.push_back(CursorSlice(*iit->inset));
2658                                 updateMacros(it, newScope ? insetScope : scope);
2659                                 it.pop_back();
2660                                 continue;
2661                         }
2662
2663                         // is it an external file?
2664                         if (iit->inset->lyxCode() == INCLUDE_CODE) {
2665                                 // get buffer of external file
2666                                 InsetInclude const & inset =
2667                                         static_cast<InsetInclude const &>(*iit->inset);
2668                                 macro_lock = true;
2669                                 Buffer * child = inset.getChildBuffer();
2670                                 macro_lock = false;
2671                                 if (!child)
2672                                         continue;
2673
2674                                 // register its position, but only when it is
2675                                 // included first in the buffer
2676                                 if (children_positions.find(child) ==
2677                                         children_positions.end())
2678                                                 children_positions[child] = it;
2679
2680                                 // register child with its scope
2681                                 position_to_children[it] = Impl::ScopeBuffer(scope, child);
2682                                 continue;
2683                         }
2684
2685                         if (iit->inset->lyxCode() != MATHMACRO_CODE)
2686                                 continue;
2687
2688                         // get macro data
2689                         MathMacroTemplate & macroTemplate =
2690                                 static_cast<MathMacroTemplate &>(*iit->inset);
2691                         MacroContext mc(owner_, it);
2692                         macroTemplate.updateToContext(mc);
2693
2694                         // valid?
2695                         bool valid = macroTemplate.validMacro();
2696                         // FIXME: Should be fixNameAndCheckIfValid() in fact,
2697                         // then the BufferView's cursor will be invalid in
2698                         // some cases which leads to crashes.
2699                         if (!valid)
2700                                 continue;
2701
2702                         // register macro
2703                         // FIXME (Abdel), I don't understandt why we pass 'it' here
2704                         // instead of 'macroTemplate' defined above... is this correct?
2705                         macros[macroTemplate.name()][it] =
2706                                 Impl::ScopeMacro(scope, MacroData(const_cast<Buffer *>(owner_), it));
2707                 }
2708
2709                 // next paragraph
2710                 it.pit()++;
2711                 it.pos() = 0;
2712         }
2713 }
2714
2715
2716 void Buffer::updateMacros() const
2717 {
2718         if (d->macro_lock)
2719                 return;
2720
2721         LYXERR(Debug::MACROS, "updateMacro of " << d->filename.onlyFileName());
2722
2723         // start with empty table
2724         d->macros.clear();
2725         d->children_positions.clear();
2726         d->position_to_children.clear();
2727
2728         // Iterate over buffer, starting with first paragraph
2729         // The scope must be bigger than any lookup DocIterator
2730         // later. For the global lookup, lastpit+1 is used, hence
2731         // we use lastpit+2 here.
2732         DocIterator it = par_iterator_begin();
2733         DocIterator outerScope = it;
2734         outerScope.pit() = outerScope.lastpit() + 2;
2735         d->updateMacros(it, outerScope);
2736 }
2737
2738
2739 void Buffer::getUsedBranches(std::list<docstring> & result, bool const from_master) const
2740 {
2741         InsetIterator it  = inset_iterator_begin(inset());
2742         InsetIterator const end = inset_iterator_end(inset());
2743         for (; it != end; ++it) {
2744                 if (it->lyxCode() == BRANCH_CODE) {
2745                         InsetBranch & br = static_cast<InsetBranch &>(*it);
2746                         docstring const name = br.branch();
2747                         if (!from_master && !params().branchlist().find(name))
2748                                 result.push_back(name);
2749                         else if (from_master && !masterBuffer()->params().branchlist().find(name))
2750                                 result.push_back(name);
2751                         continue;
2752                 }
2753                 if (it->lyxCode() == INCLUDE_CODE) {
2754                         // get buffer of external file
2755                         InsetInclude const & ins =
2756                                 static_cast<InsetInclude const &>(*it);
2757                         Buffer * child = ins.getChildBuffer();
2758                         if (!child)
2759                                 continue;
2760                         child->getUsedBranches(result, true);
2761                 }
2762         }
2763         // remove duplicates
2764         result.unique();
2765 }
2766
2767
2768 void Buffer::updateMacroInstances() const
2769 {
2770         LYXERR(Debug::MACROS, "updateMacroInstances for "
2771                 << d->filename.onlyFileName());
2772         DocIterator it = doc_iterator_begin(this);
2773         it.forwardInset();
2774         DocIterator const end = doc_iterator_end(this);
2775         for (; it != end; it.forwardInset()) {
2776                 // look for MathData cells in InsetMathNest insets
2777                 InsetMath * minset = it.nextInset()->asInsetMath();
2778                 if (!minset)
2779                         continue;
2780
2781                 // update macro in all cells of the InsetMathNest
2782                 DocIterator::idx_type n = minset->nargs();
2783                 MacroContext mc = MacroContext(this, it);
2784                 for (DocIterator::idx_type i = 0; i < n; ++i) {
2785                         MathData & data = minset->cell(i);
2786                         data.updateMacros(0, mc);
2787                 }
2788         }
2789 }
2790
2791
2792 void Buffer::listMacroNames(MacroNameSet & macros) const
2793 {
2794         if (d->macro_lock)
2795                 return;
2796
2797         d->macro_lock = true;
2798
2799         // loop over macro names
2800         Impl::NamePositionScopeMacroMap::iterator nameIt = d->macros.begin();
2801         Impl::NamePositionScopeMacroMap::iterator nameEnd = d->macros.end();
2802         for (; nameIt != nameEnd; ++nameIt)
2803                 macros.insert(nameIt->first);
2804
2805         // loop over children
2806         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
2807         Impl::BufferPositionMap::iterator end = d->children_positions.end();
2808         for (; it != end; ++it)
2809                 it->first->listMacroNames(macros);
2810
2811         // call parent
2812         Buffer const * const pbuf = d->parent();
2813         if (pbuf)
2814                 pbuf->listMacroNames(macros);
2815
2816         d->macro_lock = false;
2817 }
2818
2819
2820 void Buffer::listParentMacros(MacroSet & macros, LaTeXFeatures & features) const
2821 {
2822         Buffer const * const pbuf = d->parent();
2823         if (!pbuf)
2824                 return;
2825
2826         MacroNameSet names;
2827         pbuf->listMacroNames(names);
2828
2829         // resolve macros
2830         MacroNameSet::iterator it = names.begin();
2831         MacroNameSet::iterator end = names.end();
2832         for (; it != end; ++it) {
2833                 // defined?
2834                 MacroData const * data =
2835                 pbuf->getMacro(*it, *this, false);
2836                 if (data) {
2837                         macros.insert(data);
2838
2839                         // we cannot access the original MathMacroTemplate anymore
2840                         // here to calls validate method. So we do its work here manually.
2841                         // FIXME: somehow make the template accessible here.
2842                         if (data->optionals() > 0)
2843                                 features.require("xargs");
2844                 }
2845         }
2846 }
2847
2848
2849 Buffer::References & Buffer::references(docstring const & label)
2850 {
2851         if (d->parent())
2852                 return const_cast<Buffer *>(masterBuffer())->references(label);
2853
2854         RefCache::iterator it = d->ref_cache_.find(label);
2855         if (it != d->ref_cache_.end())
2856                 return it->second.second;
2857
2858         static InsetLabel const * dummy_il = 0;
2859         static References const dummy_refs;
2860         it = d->ref_cache_.insert(
2861                 make_pair(label, make_pair(dummy_il, dummy_refs))).first;
2862         return it->second.second;
2863 }
2864
2865
2866 Buffer::References const & Buffer::references(docstring const & label) const
2867 {
2868         return const_cast<Buffer *>(this)->references(label);
2869 }
2870
2871
2872 void Buffer::setInsetLabel(docstring const & label, InsetLabel const * il)
2873 {
2874         masterBuffer()->d->ref_cache_[label].first = il;
2875 }
2876
2877
2878 InsetLabel const * Buffer::insetLabel(docstring const & label) const
2879 {
2880         return masterBuffer()->d->ref_cache_[label].first;
2881 }
2882
2883
2884 void Buffer::clearReferenceCache() const
2885 {
2886         if (!d->parent())
2887                 d->ref_cache_.clear();
2888 }
2889
2890
2891 void Buffer::changeRefsIfUnique(docstring const & from, docstring const & to,
2892         InsetCode code)
2893 {
2894         //FIXME: This does not work for child documents yet.
2895         LASSERT(code == CITE_CODE, /**/);
2896         // Check if the label 'from' appears more than once
2897         vector<docstring> labels;
2898         string paramName;
2899         checkBibInfoCache();
2900         BiblioInfo const & keys = masterBibInfo();
2901         BiblioInfo::const_iterator bit  = keys.begin();
2902         BiblioInfo::const_iterator bend = keys.end();
2903
2904         for (; bit != bend; ++bit)
2905                 // FIXME UNICODE
2906                 labels.push_back(bit->first);
2907         paramName = "key";
2908
2909         if (count(labels.begin(), labels.end(), from) > 1)
2910                 return;
2911
2912         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
2913                 if (it->lyxCode() == code) {
2914                         InsetCommand & inset = static_cast<InsetCommand &>(*it);
2915                         docstring const oldValue = inset.getParam(paramName);
2916                         if (oldValue == from)
2917                                 inset.setParam(paramName, to);
2918                 }
2919         }
2920 }
2921
2922
2923 void Buffer::getSourceCode(odocstream & os, pit_type par_begin,
2924         pit_type par_end, bool full_source) const
2925 {
2926         OutputParams runparams(&params().encoding());
2927         runparams.nice = true;
2928         runparams.flavor = params().useXetex ?
2929                 OutputParams::XETEX : OutputParams::LATEX;
2930         runparams.linelen = lyxrc.plaintext_linelen;
2931         // No side effect of file copying and image conversion
2932         runparams.dryrun = true;
2933
2934         if (full_source) {
2935                 os << "% " << _("Preview source code") << "\n\n";
2936                 d->texrow.reset();
2937                 d->texrow.newline();
2938                 d->texrow.newline();
2939                 if (isDocBook())
2940                         writeDocBookSource(os, absFileName(), runparams, false);
2941                 else
2942                         // latex or literate
2943                         writeLaTeXSource(os, string(), runparams, true, true);
2944         } else {
2945                 runparams.par_begin = par_begin;
2946                 runparams.par_end = par_end;
2947                 if (par_begin + 1 == par_end) {
2948                         os << "% "
2949                            << bformat(_("Preview source code for paragraph %1$d"), par_begin)
2950                            << "\n\n";
2951                 } else {
2952                         os << "% "
2953                            << bformat(_("Preview source code from paragraph %1$s to %2$s"),
2954                                         convert<docstring>(par_begin),
2955                                         convert<docstring>(par_end - 1))
2956                            << "\n\n";
2957                 }
2958                 TexRow texrow;
2959                 texrow.reset();
2960                 texrow.newline();
2961                 texrow.newline();
2962                 // output paragraphs
2963                 if (isDocBook())
2964                         docbookParagraphs(text(), *this, os, runparams);
2965                 else
2966                         // latex or literate
2967                         latexParagraphs(*this, text(), os, texrow, runparams);
2968         }
2969 }
2970
2971
2972 ErrorList & Buffer::errorList(string const & type) const
2973 {
2974         static ErrorList emptyErrorList;
2975         map<string, ErrorList>::iterator I = d->errorLists.find(type);
2976         if (I == d->errorLists.end())
2977                 return emptyErrorList;
2978
2979         return I->second;
2980 }
2981
2982
2983 void Buffer::updateTocItem(std::string const & type,
2984         DocIterator const & dit) const
2985 {
2986         if (d->gui_)
2987                 d->gui_->updateTocItem(type, dit);
2988 }
2989
2990
2991 void Buffer::structureChanged() const
2992 {
2993         if (d->gui_)
2994                 d->gui_->structureChanged();
2995 }
2996
2997
2998 void Buffer::errors(string const & err, bool from_master) const
2999 {
3000         if (d->gui_)
3001                 d->gui_->errors(err, from_master);
3002 }
3003
3004
3005 void Buffer::message(docstring const & msg) const
3006 {
3007         if (d->gui_)
3008                 d->gui_->message(msg);
3009 }
3010
3011
3012 void Buffer::setBusy(bool on) const
3013 {
3014         if (d->gui_)
3015                 d->gui_->setBusy(on);
3016 }
3017
3018
3019 void Buffer::updateTitles() const
3020 {
3021         if (d->wa_)
3022                 d->wa_->updateTitles();
3023 }
3024
3025
3026 void Buffer::resetAutosaveTimers() const
3027 {
3028         if (d->gui_)
3029                 d->gui_->resetAutosaveTimers();
3030 }
3031
3032
3033 bool Buffer::hasGuiDelegate() const
3034 {
3035         return d->gui_;
3036 }
3037
3038
3039 void Buffer::setGuiDelegate(frontend::GuiBufferDelegate * gui)
3040 {
3041         d->gui_ = gui;
3042 }
3043
3044
3045
3046 namespace {
3047
3048 class AutoSaveBuffer : public ForkedProcess {
3049 public:
3050         ///
3051         AutoSaveBuffer(Buffer const & buffer, FileName const & fname)
3052                 : buffer_(buffer), fname_(fname) {}
3053         ///
3054         virtual boost::shared_ptr<ForkedProcess> clone() const
3055         {
3056                 return boost::shared_ptr<ForkedProcess>(new AutoSaveBuffer(*this));
3057         }
3058         ///
3059         int start()
3060         {
3061                 command_ = to_utf8(bformat(_("Auto-saving %1$s"),
3062                                                  from_utf8(fname_.absFilename())));
3063                 return run(DontWait);
3064         }
3065 private:
3066         ///
3067         virtual int generateChild();
3068         ///
3069         Buffer const & buffer_;
3070         FileName fname_;
3071 };
3072
3073
3074 int AutoSaveBuffer::generateChild()
3075 {
3076 #if defined(__APPLE__)
3077         /* FIXME fork() is not usable for autosave on Mac OS X 10.6 (snow leopard)
3078          *   We should use something else like threads.
3079          *
3080          * Since I do not know how to determine at run time what is the OS X
3081          * version, I just disable forking altogether for now (JMarc)
3082          */
3083         pid_t const pid = -1;
3084 #else
3085         // tmp_ret will be located (usually) in /tmp
3086         // will that be a problem?
3087         // Note that this calls ForkedCalls::fork(), so it's
3088         // ok cross-platform.
3089         pid_t const pid = fork();
3090         // If you want to debug the autosave
3091         // you should set pid to -1, and comment out the fork.
3092         if (pid != 0 && pid != -1)
3093                 return pid;
3094 #endif
3095
3096         // pid = -1 signifies that lyx was unable
3097         // to fork. But we will do the save
3098         // anyway.
3099         bool failed = false;
3100         FileName const tmp_ret = FileName::tempName("lyxauto");
3101         if (!tmp_ret.empty()) {
3102                 buffer_.writeFile(tmp_ret);
3103                 // assume successful write of tmp_ret
3104                 if (!tmp_ret.moveTo(fname_))
3105                         failed = true;
3106         } else
3107                 failed = true;
3108
3109         if (failed) {
3110                 // failed to write/rename tmp_ret so try writing direct
3111                 if (!buffer_.writeFile(fname_)) {
3112                         // It is dangerous to do this in the child,
3113                         // but safe in the parent, so...
3114                         if (pid == -1) // emit message signal.
3115                                 buffer_.message(_("Autosave failed!"));
3116                 }
3117         }
3118
3119         if (pid == 0) // we are the child so...
3120                 _exit(0);
3121
3122         return pid;
3123 }
3124
3125 } // namespace anon
3126
3127
3128 FileName Buffer::getAutosaveFilename() const
3129 {
3130         // if the document is unnamed try to save in the backup dir, else
3131         // in the default document path, and as a last try in the filePath,
3132         // which will most often be the temporary directory
3133         string fpath;
3134         if (isUnnamed())
3135                 fpath = lyxrc.backupdir_path.empty() ? lyxrc.document_path
3136                         : lyxrc.backupdir_path;
3137         if (!isUnnamed() || fpath.empty() || !FileName(fpath).exists())
3138                 fpath = filePath();
3139
3140         string const fname = "#" + d->filename.onlyFileName() + "#";
3141         return makeAbsPath(fname, fpath);
3142 }
3143
3144
3145 void Buffer::removeAutosaveFile() const
3146 {
3147         FileName const f = getAutosaveFilename();
3148         if (f.exists())
3149                 f.removeFile();
3150 }
3151
3152
3153 void Buffer::moveAutosaveFile(support::FileName const & oldauto) const
3154 {
3155         FileName const newauto = getAutosaveFilename();
3156         oldauto.refresh();
3157         if (newauto != oldauto && oldauto.exists())
3158                 if (!oldauto.moveTo(newauto))
3159                         LYXERR0("Unable to move autosave file `" << oldauto << "'!");
3160 }
3161
3162
3163 // Perfect target for a thread...
3164 void Buffer::autoSave() const
3165 {
3166         if (d->bak_clean || isReadonly()) {
3167                 // We don't save now, but we'll try again later
3168                 resetAutosaveTimers();
3169                 return;
3170         }
3171
3172         // emit message signal.
3173         message(_("Autosaving current document..."));
3174         AutoSaveBuffer autosave(*this, getAutosaveFilename());
3175         autosave.start();
3176
3177         d->bak_clean = true;
3178
3179         resetAutosaveTimers();
3180 }
3181
3182
3183 string Buffer::bufferFormat() const
3184 {
3185         string format = params().documentClass().outputFormat();
3186         if (format == "latex") {
3187                 if (params().useXetex)
3188                         return "xetex";
3189                 if (params().encoding().package() == Encoding::japanese)
3190                         return "platex";
3191         }
3192         return format;
3193 }
3194
3195
3196 string Buffer::getDefaultOutputFormat() const
3197 {
3198         if (!params().defaultOutputFormat.empty()
3199             && params().defaultOutputFormat != "default")
3200                 return params().defaultOutputFormat;
3201         typedef vector<Format const *> Formats;
3202         Formats formats = exportableFormats(true);
3203         if (isDocBook()
3204             || isLiterate()
3205             || params().useXetex
3206             || params().encoding().package() == Encoding::japanese) {
3207                 if (formats.empty())
3208                         return string();
3209                 // return the first we find
3210                 return formats.front()->name();
3211         }
3212         return lyxrc.default_view_format;
3213 }
3214
3215
3216
3217 bool Buffer::doExport(string const & format, bool put_in_tempdir,
3218         bool includeall, string & result_file) const
3219 {
3220         string backend_format;
3221         OutputParams runparams(&params().encoding());
3222         runparams.flavor = OutputParams::LATEX;
3223         runparams.linelen = lyxrc.plaintext_linelen;
3224         runparams.includeall = includeall;
3225         vector<string> backs = backends();
3226         if (find(backs.begin(), backs.end(), format) == backs.end()) {
3227                 // Get shortest path to format
3228                 Graph::EdgePath path;
3229                 for (vector<string>::const_iterator it = backs.begin();
3230                      it != backs.end(); ++it) {
3231                         Graph::EdgePath p = theConverters().getPath(*it, format);
3232                         if (!p.empty() && (path.empty() || p.size() < path.size())) {
3233                                 backend_format = *it;
3234                                 path = p;
3235                         }
3236                 }
3237                 if (path.empty()) {
3238                         if (!put_in_tempdir) {
3239                                 // Only show this alert if this is an export to a non-temporary
3240                                 // file (not for previewing).
3241                                 Alert::error(_("Couldn't export file"), bformat(
3242                                         _("No information for exporting the format %1$s."),
3243                                         formats.prettyName(format)));
3244                         }
3245                         return false;
3246                 }
3247                 runparams.flavor = theConverters().getFlavor(path);
3248
3249         } else {
3250                 backend_format = format;
3251                 // FIXME: Don't hardcode format names here, but use a flag
3252                 if (backend_format == "pdflatex")
3253                         runparams.flavor = OutputParams::PDFLATEX;
3254         }
3255
3256         string filename = latexName(false);
3257         filename = addName(temppath(), filename);
3258         filename = changeExtension(filename,
3259                                    formats.extension(backend_format));
3260
3261         // fix macros
3262         updateMacroInstances();
3263
3264         // Plain text backend
3265         if (backend_format == "text") {
3266                 runparams.flavor = OutputParams::TEXT;
3267                 writePlaintextFile(*this, FileName(filename), runparams);
3268         }
3269         // HTML backend
3270         else if (backend_format == "xhtml") {
3271                 runparams.flavor = OutputParams::HTML;
3272                 makeLyXHTMLFile(FileName(filename), runparams);
3273         }       else if (backend_format == "lyx")
3274                 writeFile(FileName(filename));
3275         // Docbook backend
3276         else if (isDocBook()) {
3277                 runparams.nice = !put_in_tempdir;
3278                 makeDocBookFile(FileName(filename), runparams);
3279         }
3280         // LaTeX backend
3281         else if (backend_format == format) {
3282                 runparams.nice = true;
3283                 if (!makeLaTeXFile(FileName(filename), string(), runparams))
3284                         return false;
3285         } else if (!lyxrc.tex_allows_spaces
3286                    && contains(filePath(), ' ')) {
3287                 Alert::error(_("File name error"),
3288                            _("The directory path to the document cannot contain spaces."));
3289                 return false;
3290         } else {
3291                 runparams.nice = false;
3292                 if (!makeLaTeXFile(FileName(filename), filePath(), runparams))
3293                         return false;
3294         }
3295
3296         string const error_type = (format == "program")
3297                 ? "Build" : bufferFormat();
3298         ErrorList & error_list = d->errorLists[error_type];
3299         string const ext = formats.extension(format);
3300         FileName const tmp_result_file(changeExtension(filename, ext));
3301         bool const success = theConverters().convert(this, FileName(filename),
3302                 tmp_result_file, FileName(absFileName()), backend_format, format,
3303                 error_list);
3304         // Emit the signal to show the error list.
3305         if (format != backend_format) {
3306                 errors(error_type);
3307                 // also to the children, in case of master-buffer-view
3308                 std::vector<Buffer *> clist = getChildren();
3309                 for (vector<Buffer *>::const_iterator cit = clist.begin();
3310                      cit != clist.end(); ++cit)
3311                         (*cit)->errors(error_type, true);
3312         }
3313         if (!success)
3314                 return false;
3315
3316         if (d->cloned_buffer_) {
3317                 // Enable reverse dvi or pdf to work by copying back the texrow
3318                 // object to the cloned buffer.
3319                 // FIXME: There is a possibility of concurrent access to texrow
3320                 // here from the main GUI thread that should be securized.
3321                 d->cloned_buffer_->d->texrow = d->texrow;
3322         }
3323
3324         if (put_in_tempdir) {
3325                 result_file = tmp_result_file.absFilename();
3326                 return true;
3327         }
3328
3329         result_file = changeExtension(d->exportFileName().absFilename(), ext);
3330         // We need to copy referenced files (e. g. included graphics
3331         // if format == "dvi") to the result dir.
3332         vector<ExportedFile> const files =
3333                 runparams.exportdata->externalFiles(format);
3334         string const dest = onlyPath(result_file);
3335         CopyStatus status = SUCCESS;
3336
3337         vector<ExportedFile>::const_iterator it = files.begin();
3338         vector<ExportedFile>::const_iterator const en = files.end();
3339         for (; it != en && status != CANCEL; ++it) {
3340                 string const fmt = formats.getFormatFromFile(it->sourceName);
3341                 status = copyFile(fmt, it->sourceName,
3342                         makeAbsPath(it->exportName, dest),
3343                         it->exportName, status == FORCE);
3344         }
3345
3346         if (status == CANCEL) {
3347                 message(_("Document export cancelled."));
3348         } else if (tmp_result_file.exists()) {
3349                 // Finally copy the main file
3350                 status = copyFile(format, tmp_result_file,
3351                         FileName(result_file), result_file,
3352                         status == FORCE);
3353                 message(bformat(_("Document exported as %1$s "
3354                         "to file `%2$s'"),
3355                         formats.prettyName(format),
3356                         makeDisplayPath(result_file)));
3357         } else {
3358                 // This must be a dummy converter like fax (bug 1888)
3359                 message(bformat(_("Document exported as %1$s"),
3360                         formats.prettyName(format)));
3361         }
3362
3363         return true;
3364 }
3365
3366
3367 bool Buffer::doExport(string const & format, bool put_in_tempdir,
3368                       bool includeall) const
3369 {
3370         string result_file;
3371         // (1) export with all included children (omit \includeonly)
3372         if (includeall && !doExport(format, put_in_tempdir, true, result_file))
3373                 return false;
3374         // (2) export with included children only
3375         return doExport(format, put_in_tempdir, false, result_file);
3376 }
3377
3378
3379 bool Buffer::preview(string const & format, bool includeall) const
3380 {
3381         string result_file;
3382         // (1) export with all included children (omit \includeonly)
3383         if (includeall && !doExport(format, true, true))
3384                 return false;
3385         // (2) export with included children only
3386         if (!doExport(format, true, false, result_file))
3387                 return false;
3388         return formats.view(*this, FileName(result_file), format);
3389 }
3390
3391
3392 bool Buffer::isExportable(string const & format) const
3393 {
3394         vector<string> backs = backends();
3395         for (vector<string>::const_iterator it = backs.begin();
3396              it != backs.end(); ++it)
3397                 if (theConverters().isReachable(*it, format))
3398                         return true;
3399         return false;
3400 }
3401
3402
3403 vector<Format const *> Buffer::exportableFormats(bool only_viewable) const
3404 {
3405         vector<string> const backs = backends();
3406         vector<Format const *> result =
3407                 theConverters().getReachable(backs[0], only_viewable, true);
3408         for (vector<string>::const_iterator it = backs.begin() + 1;
3409              it != backs.end(); ++it) {
3410                 vector<Format const *>  r =
3411                         theConverters().getReachable(*it, only_viewable, false);
3412                 result.insert(result.end(), r.begin(), r.end());
3413         }
3414         return result;
3415 }
3416
3417
3418 vector<string> Buffer::backends() const
3419 {
3420         vector<string> v;
3421         v.push_back(bufferFormat());
3422         // FIXME: Don't hardcode format names here, but use a flag
3423         if (v.back() == "latex")
3424                 v.push_back("pdflatex");
3425         v.push_back("xhtml");
3426         v.push_back("text");
3427         v.push_back("lyx");
3428         return v;
3429 }
3430
3431
3432 bool Buffer::readFileHelper(FileName const & s)
3433 {
3434         // File information about normal file
3435         if (!s.exists()) {
3436                 docstring const file = makeDisplayPath(s.absFilename(), 50);
3437                 docstring text = bformat(_("The specified document\n%1$s"
3438                                                      "\ncould not be read."), file);
3439                 Alert::error(_("Could not read document"), text);
3440                 return false;
3441         }
3442
3443         // Check if emergency save file exists and is newer.
3444         FileName const e(s.absFilename() + ".emergency");
3445
3446         if (e.exists() && s.exists() && e.lastModified() > s.lastModified()) {
3447                 docstring const file = makeDisplayPath(s.absFilename(), 20);
3448                 docstring const text =
3449                         bformat(_("An emergency save of the document "
3450                                   "%1$s exists.\n\n"
3451                                                "Recover emergency save?"), file);
3452                 switch (Alert::prompt(_("Load emergency save?"), text, 0, 2,
3453                                       _("&Recover"),  _("&Load Original"),
3454                                       _("&Cancel")))
3455                 {
3456                 case 0: {
3457                         // the file is not saved if we load the emergency file.
3458                         markDirty();
3459                         docstring str;
3460                         bool res;
3461
3462                         if ((res = readFile(e)) == success)
3463                                 str = _("Document was successfully recovered.");
3464                         else
3465                                 str = _("Document was NOT successfully recovered.");
3466                         str += "\n\n" + bformat(_("Remove emergency file now?\n(%1$s)"),
3467                                                 from_utf8(e.absFilename()));
3468
3469                         if (!Alert::prompt(_("Delete emergency file?"), str, 1, 1,
3470                                         _("&Remove"), _("&Keep it"))) {
3471                                 e.removeFile();
3472                                 if (res == success)
3473                                         Alert::warning(_("Emergency file deleted"),
3474                                                 _("Do not forget to save your file now!"), true);
3475                                 }
3476                         return res;
3477                 }
3478                 case 1:
3479                         if (!Alert::prompt(_("Delete emergency file?"),
3480                                         _("Remove emergency file now?"), 1, 1,
3481                                         _("&Remove"), _("&Keep it")))
3482                                 e.removeFile();
3483                         break;
3484                 default:
3485                         return false;
3486                 }
3487         }
3488
3489         // Now check if autosave file is newer.
3490         FileName const a(onlyPath(s.absFilename()) + '#' + onlyFilename(s.absFilename()) + '#');
3491
3492         if (a.exists() && s.exists() && a.lastModified() > s.lastModified()) {
3493                 docstring const file = makeDisplayPath(s.absFilename(), 20);
3494                 docstring const text =
3495                         bformat(_("The backup of the document "
3496                                   "%1$s is newer.\n\nLoad the "
3497                                                "backup instead?"), file);
3498                 switch (Alert::prompt(_("Load backup?"), text, 0, 2,
3499                                       _("&Load backup"), _("Load &original"),
3500                                       _("&Cancel") ))
3501                 {
3502                 case 0:
3503                         // the file is not saved if we load the autosave file.
3504                         markDirty();
3505                         return readFile(a);
3506                 case 1:
3507                         // Here we delete the autosave
3508                         a.removeFile();
3509                         break;
3510                 default:
3511                         return false;
3512                 }
3513         }
3514         return readFile(s);
3515 }
3516
3517
3518 bool Buffer::loadLyXFile(FileName const & s)
3519 {
3520         // If the file is not readable, we try to
3521         // retrieve the file from version control.
3522         if (!s.isReadableFile()
3523                   && !LyXVC::file_not_found_hook(s))
3524                 return false;
3525
3526         if (s.isReadableFile()){
3527                 // InsetInfo needs to know if file is under VCS
3528                 lyxvc().file_found_hook(s);
3529                 if (readFileHelper(s)) {
3530                         d->read_only = !s.isWritable();
3531                         return true;
3532                 }
3533         }
3534         return false;
3535 }
3536
3537
3538 void Buffer::bufferErrors(TeXErrors const & terr, ErrorList & errorList) const
3539 {
3540         TeXErrors::Errors::const_iterator cit = terr.begin();
3541         TeXErrors::Errors::const_iterator end = terr.end();
3542
3543         for (; cit != end; ++cit) {
3544                 int id_start = -1;
3545                 int pos_start = -1;
3546                 int errorRow = cit->error_in_line;
3547                 bool found = d->texrow.getIdFromRow(errorRow, id_start,
3548                                                        pos_start);
3549                 int id_end = -1;
3550                 int pos_end = -1;
3551                 do {
3552                         ++errorRow;
3553                         found = d->texrow.getIdFromRow(errorRow, id_end, pos_end);
3554                 } while (found && id_start == id_end && pos_start == pos_end);
3555
3556                 errorList.push_back(ErrorItem(cit->error_desc,
3557                         cit->error_text, id_start, pos_start, pos_end));
3558         }
3559 }
3560
3561
3562 void Buffer::setBuffersForInsets() const
3563 {
3564         inset().setBuffer(const_cast<Buffer &>(*this));
3565 }
3566
3567
3568 void Buffer::updateBuffer(UpdateScope scope, UpdateType utype) const
3569 {
3570         // Use the master text class also for child documents
3571         Buffer const * const master = masterBuffer();
3572         DocumentClass const & textclass = master->params().documentClass();
3573
3574         // do this only if we are the top-level Buffer
3575         if (scope != UpdateMaster || master == this)
3576                 checkBibInfoCache();
3577
3578         // keep the buffers to be children in this set. If the call from the
3579         // master comes back we can see which of them were actually seen (i.e.
3580         // via an InsetInclude). The remaining ones in the set need still be updated.
3581         static std::set<Buffer const *> bufToUpdate;
3582         if (scope == UpdateMaster) {
3583                 // If this is a child document start with the master
3584                 if (master != this) {
3585                         bufToUpdate.insert(this);
3586                         master->updateBuffer(UpdateMaster, utype);
3587                         // Do this here in case the master has no gui associated with it. Then,
3588                         // the TocModel is not updated and TocModel::toc_ is invalid (bug 5699).
3589                         if (!master->d->gui_)
3590                                 structureChanged();
3591
3592                         // was buf referenced from the master (i.e. not in bufToUpdate anymore)?
3593                         if (bufToUpdate.find(this) == bufToUpdate.end())
3594                                 return;
3595                 }
3596
3597                 // start over the counters in the master
3598                 textclass.counters().reset();
3599         }
3600
3601         // update will be done below for this buffer
3602         bufToUpdate.erase(this);
3603
3604         // update all caches
3605         clearReferenceCache();
3606         updateMacros();
3607
3608         Buffer & cbuf = const_cast<Buffer &>(*this);
3609
3610         LASSERT(!text().paragraphs().empty(), /**/);
3611
3612         // do the real work
3613         ParIterator parit = cbuf.par_iterator_begin();
3614         updateBuffer(parit, utype);
3615
3616         if (master != this)
3617                 // TocBackend update will be done later.
3618                 return;
3619
3620         cbuf.tocBackend().update();
3621         if (scope == UpdateMaster)
3622                 cbuf.structureChanged();
3623 }
3624
3625
3626 static depth_type getDepth(DocIterator const & it)
3627 {
3628         depth_type depth = 0;
3629         for (size_t i = 0 ; i < it.depth() ; ++i)
3630                 if (!it[i].inset().inMathed())
3631                         depth += it[i].paragraph().getDepth() + 1;
3632         // remove 1 since the outer inset does not count
3633         return depth - 1;
3634 }
3635
3636 static depth_type getItemDepth(ParIterator const & it)
3637 {
3638         Paragraph const & par = *it;
3639         LabelType const labeltype = par.layout().labeltype;
3640
3641         if (labeltype != LABEL_ENUMERATE && labeltype != LABEL_ITEMIZE)
3642                 return 0;
3643
3644         // this will hold the lowest depth encountered up to now.
3645         depth_type min_depth = getDepth(it);
3646         ParIterator prev_it = it;
3647         while (true) {
3648                 if (prev_it.pit())
3649                         --prev_it.top().pit();
3650                 else {
3651                         // start of nested inset: go to outer par
3652                         prev_it.pop_back();
3653                         if (prev_it.empty()) {
3654                                 // start of document: nothing to do
3655                                 return 0;
3656                         }
3657                 }
3658
3659                 // We search for the first paragraph with same label
3660                 // that is not more deeply nested.
3661                 Paragraph & prev_par = *prev_it;
3662                 depth_type const prev_depth = getDepth(prev_it);
3663                 if (labeltype == prev_par.layout().labeltype) {
3664                         if (prev_depth < min_depth)
3665                                 return prev_par.itemdepth + 1;
3666                         if (prev_depth == min_depth)
3667                                 return prev_par.itemdepth;
3668                 }
3669                 min_depth = min(min_depth, prev_depth);
3670                 // small optimization: if we are at depth 0, we won't
3671                 // find anything else
3672                 if (prev_depth == 0)
3673                         return 0;
3674         }
3675 }
3676
3677
3678 static bool needEnumCounterReset(ParIterator const & it)
3679 {
3680         Paragraph const & par = *it;
3681         LASSERT(par.layout().labeltype == LABEL_ENUMERATE, /**/);
3682         depth_type const cur_depth = par.getDepth();
3683         ParIterator prev_it = it;
3684         while (prev_it.pit()) {
3685                 --prev_it.top().pit();
3686                 Paragraph const & prev_par = *prev_it;
3687                 if (prev_par.getDepth() <= cur_depth)
3688                         return  prev_par.layout().labeltype != LABEL_ENUMERATE;
3689         }
3690         // start of nested inset: reset
3691         return true;
3692 }
3693
3694
3695 // set the label of a paragraph. This includes the counters.
3696 void Buffer::Impl::setLabel(ParIterator & it, UpdateType utype) const
3697 {
3698         BufferParams const & bp = owner_->masterBuffer()->params();
3699         DocumentClass const & textclass = bp.documentClass();
3700         Paragraph & par = it.paragraph();
3701         Layout const & layout = par.layout();
3702         Counters & counters = textclass.counters();
3703
3704         if (par.params().startOfAppendix()) {
3705                 // FIXME: only the counter corresponding to toplevel
3706                 // sectioning should be reset
3707                 counters.reset();
3708                 counters.appendix(true);
3709         }
3710         par.params().appendix(counters.appendix());
3711
3712         // Compute the item depth of the paragraph
3713         par.itemdepth = getItemDepth(it);
3714
3715         if (layout.margintype == MARGIN_MANUAL
3716             || layout.latextype == LATEX_BIB_ENVIRONMENT) {
3717                 if (par.params().labelWidthString().empty())
3718                         par.params().labelWidthString(par.expandLabel(layout, bp));
3719         } else {
3720                 par.params().labelWidthString(docstring());
3721         }
3722
3723         switch(layout.labeltype) {
3724         case LABEL_COUNTER:
3725                 if (layout.toclevel <= bp.secnumdepth
3726                     && (layout.latextype != LATEX_ENVIRONMENT
3727                         || it.text()->isFirstInSequence(it.pit()))) {
3728                         counters.step(layout.counter, utype);
3729                         par.params().labelString(
3730                                 par.expandLabel(layout, bp));
3731                 } else
3732                         par.params().labelString(docstring());
3733                 break;
3734
3735         case LABEL_ITEMIZE: {
3736                 // At some point of time we should do something more
3737                 // clever here, like:
3738                 //   par.params().labelString(
3739                 //    bp.user_defined_bullet(par.itemdepth).getText());
3740                 // for now, use a simple hardcoded label
3741                 docstring itemlabel;
3742                 switch (par.itemdepth) {
3743                 case 0:
3744                         itemlabel = char_type(0x2022);
3745                         break;
3746                 case 1:
3747                         itemlabel = char_type(0x2013);
3748                         break;
3749                 case 2:
3750                         itemlabel = char_type(0x2217);
3751                         break;
3752                 case 3:
3753                         itemlabel = char_type(0x2219); // or 0x00b7
3754                         break;
3755                 }
3756                 par.params().labelString(itemlabel);
3757                 break;
3758         }
3759
3760         case LABEL_ENUMERATE: {
3761                 docstring enumcounter = layout.counter.empty() ? from_ascii("enum") : layout.counter;
3762
3763                 switch (par.itemdepth) {
3764                 case 2:
3765                         enumcounter += 'i';
3766                 case 1:
3767                         enumcounter += 'i';
3768                 case 0:
3769                         enumcounter += 'i';
3770                         break;
3771                 case 3:
3772                         enumcounter += "iv";
3773                         break;
3774                 default:
3775                         // not a valid enumdepth...
3776                         break;
3777                 }
3778
3779                 // Maybe we have to reset the enumeration counter.
3780                 if (needEnumCounterReset(it))
3781                         counters.reset(enumcounter);
3782                 counters.step(enumcounter, utype);
3783
3784                 string const & lang = par.getParLanguage(bp)->code();
3785                 par.params().labelString(counters.theCounter(enumcounter, lang));
3786
3787                 break;
3788         }
3789
3790         case LABEL_SENSITIVE: {
3791                 string const & type = counters.current_float();
3792                 docstring full_label;
3793                 if (type.empty())
3794                         full_label = owner_->B_("Senseless!!! ");
3795                 else {
3796                         docstring name = owner_->B_(textclass.floats().getType(type).name());
3797                         if (counters.hasCounter(from_utf8(type))) {
3798                                 string const & lang = par.getParLanguage(bp)->code();
3799                                 counters.step(from_utf8(type), utype);
3800                                 full_label = bformat(from_ascii("%1$s %2$s:"),
3801                                                      name,
3802                                                      counters.theCounter(from_utf8(type), lang));
3803                         } else
3804                                 full_label = bformat(from_ascii("%1$s #:"), name);
3805                 }
3806                 par.params().labelString(full_label);
3807                 break;
3808         }
3809
3810         case LABEL_NO_LABEL:
3811                 par.params().labelString(docstring());
3812                 break;
3813
3814         case LABEL_MANUAL:
3815         case LABEL_TOP_ENVIRONMENT:
3816         case LABEL_CENTERED_TOP_ENVIRONMENT:
3817         case LABEL_STATIC:
3818         case LABEL_BIBLIO:
3819                 par.params().labelString(par.expandLabel(layout, bp));
3820                 break;
3821         }
3822 }
3823
3824
3825 void Buffer::updateBuffer(ParIterator & parit, UpdateType utype) const
3826 {
3827         LASSERT(parit.pit() == 0, /**/);
3828
3829         // set the position of the text in the buffer to be able
3830         // to resolve macros in it. This has nothing to do with
3831         // labels, but by putting it here we avoid implementing
3832         // a whole bunch of traversal routines just for this call.
3833         parit.text()->setMacrocontextPosition(parit);
3834
3835         depth_type maxdepth = 0;
3836         pit_type const lastpit = parit.lastpit();
3837         for ( ; parit.pit() <= lastpit ; ++parit.pit()) {
3838                 // reduce depth if necessary
3839                 parit->params().depth(min(parit->params().depth(), maxdepth));
3840                 maxdepth = parit->getMaxDepthAfter();
3841
3842                 if (utype == OutputUpdate) {
3843                         // track the active counters
3844                         // we have to do this for the master buffer, since the local
3845                         // buffer isn't tracking anything.
3846                         masterBuffer()->params().documentClass().counters().
3847                                         setActiveLayout(parit->layout());
3848                 }
3849
3850                 // set the counter for this paragraph
3851                 d->setLabel(parit, utype);
3852
3853                 // now the insets
3854                 InsetList::const_iterator iit = parit->insetList().begin();
3855                 InsetList::const_iterator end = parit->insetList().end();
3856                 for (; iit != end; ++iit) {
3857                         parit.pos() = iit->pos;
3858                         iit->inset->updateBuffer(parit, utype);
3859                 }
3860         }
3861 }
3862
3863
3864 int Buffer::spellCheck(DocIterator & from, DocIterator & to,
3865         WordLangTuple & word_lang, docstring_list & suggestions) const
3866 {
3867         int progress = 0;
3868         WordLangTuple wl;
3869         suggestions.clear();
3870         word_lang = WordLangTuple();
3871         // OK, we start from here.
3872         DocIterator const end = doc_iterator_end(this);
3873         for (; from != end; from.forwardPos()) {
3874                 // We are only interested in text so remove the math CursorSlice.
3875                 while (from.inMathed()) {
3876                         from.pop_back();
3877                         from.pos()++;
3878                 }
3879                 // If from is at the end of the document (which is possible
3880                 // when leaving the mathed) LyX will crash later.
3881                 if (from == end)
3882                         break;
3883                 to = from;
3884                 if (from.paragraph().spellCheck(from.pos(), to.pos(), wl, suggestions)) {
3885                         word_lang = wl;
3886                         break;
3887                 }
3888
3889                 // Do not increase progress when from == to, otherwise the word
3890                 // count will be wrong.
3891                 if (from != to) {
3892                         from = to;
3893                         ++progress;
3894                 }
3895         }
3896         return progress;
3897 }
3898
3899
3900 bool Buffer::reload()
3901 {
3902         setBusy(true);
3903         // e.g., read-only status could have changed due to version control
3904         d->filename.refresh();
3905         docstring const disp_fn = makeDisplayPath(d->filename.absFilename());
3906
3907         bool const success = loadLyXFile(d->filename);
3908         if (success) {
3909                 updateBuffer();
3910                 changed(true);
3911                 markClean();
3912                 message(bformat(_("Document %1$s reloaded."), disp_fn));
3913         } else {
3914                 message(bformat(_("Could not reload document %1$s."), disp_fn));
3915         }
3916         setBusy(false);
3917         errors("Parse");
3918         return success;
3919 }
3920
3921
3922 } // namespace lyx