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/InsetBibtex.h"
  70 #include "insets/InsetBranch.h"
  71 #include "insets/InsetInclude.h"
  72 #include "insets/InsetTabular.h"
  73 #include "insets/InsetText.h"
  74
  75 #include "mathed/InsetMathHull.h"
  76 #include "mathed/MacroTable.h"
  77 #include "mathed/MathMacroTemplate.h"
  78 #include "mathed/MathSupport.h"
  79
  80 #include "graphics/PreviewLoader.h"
  81
  82 #include "frontends/alert.h"
  83 #include "frontends/Delegates.h"
  84 #include "frontends/WorkAreaManager.h"
  85
  86 #include "support/lassert.h"
  87 #include "support/convert.h"
  88 #include "support/debug.h"
  89 #include "support/docstring_list.h"
  90 #include "support/ExceptionMessage.h"
  91 #include "support/FileName.h"
  92 #include "support/FileNameList.h"
  93 #include "support/filetools.h"
  94 #include "support/ForkedCalls.h"
  95 #include "support/gettext.h"
  96 #include "support/gzstream.h"
  97 #include "support/lstrings.h"
  98 #include "support/lyxalgo.h"
  99 #include "support/os.h"
 100 #include "support/Package.h"
 101 #include "support/Path.h"
 102 #include "support/Systemcall.h"
 103 #include "support/textutils.h"
 104 #include "support/types.h"
 105
 106 #include "support/bind.h"
 107 #include "support/shared_ptr.h"
 108
 109 #include <algorithm>
 110 #include <fstream>
 111 #include <iomanip>
 112 #include <map>
 113 #include <set>
 114 #include <sstream>
 115 #include <stack>
 116 #include <vector>
 117
 118 using namespace std;
 119 using namespace lyx::support;
 120 using namespace lyx::graphics;
 121
 122 namespace lyx {
 123
 124 namespace Alert = frontend::Alert;
 125 namespace os = support::os;
 126
 127 namespace {
 128
 129 int const LYX_FORMAT = LYX_FORMAT_LYX;
 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
 145 // A storehouse for the cloned buffers.
 146 list<CloneList *> cloned_buffers;
 147
 148
 149 class Buffer::Impl
 150 {
 151 public:
 152         Impl(Buffer * owner, FileName const & file, bool readonly, Buffer const * cloned_buffer);
 153
 154         ~Impl()
 155         {
 156                 delete preview_loader_;
 157                 if (wa_) {
 158                         wa_->closeAll();
 159                         delete wa_;
 160                 }
 161                 delete inset;
 162         }
 163
 164         /// search for macro in local (buffer) table or in children
 165         MacroData const * getBufferMacro(docstring const & name,
 166                 DocIterator const & pos) const;
 167
 168         /// Update macro table starting with position of it \param it in some
 169         /// text inset.
 170         void updateMacros(DocIterator & it, DocIterator & scope);
 171         ///
 172         void setLabel(ParIterator & it, UpdateType utype) const;
 173
 174         /** If we have branches that use the file suffix
 175             feature, return the file name with suffix appended.
 176         */
 177         support::FileName exportFileName() const;
 178
 179         Buffer * owner_;
 180
 181         BufferParams params;
 182         LyXVC lyxvc;
 183         FileName temppath;
 184         mutable TexRow texrow;
 185
 186         /// need to regenerate .tex?
 187         DepClean dep_clean;
 188
 189         /// is save needed?
 190         mutable bool lyx_clean;
 191
 192         /// is autosave needed?
 193         mutable bool bak_clean;
 194
 195         /// is this an unnamed file (New...)?
 196         bool unnamed;
 197
 198         /// buffer is r/o
 199         bool read_only;
 200
 201         /// name of the file the buffer is associated with.
 202         FileName filename;
 203
 204         /** Set to true only when the file is fully loaded.
 205          *  Used to prevent the premature generation of previews
 206          *  and by the citation inset.
 207          */
 208         bool file_fully_loaded;
 209
 210         ///
 211         mutable TocBackend toc_backend;
 212
 213         /// macro tables
 214         typedef pair<DocIterator, MacroData> ScopeMacro;
 215         typedef map<DocIterator, ScopeMacro> PositionScopeMacroMap;
 216         typedef map<docstring, PositionScopeMacroMap> NamePositionScopeMacroMap;
 217         /// map from the macro name to the position map,
 218         /// which maps the macro definition position to the scope and the MacroData.
 219         NamePositionScopeMacroMap macros;
 220         /// This seem to change the way Buffer::getMacro() works
 221         mutable bool macro_lock;
 222
 223         /// positions of child buffers in the buffer
 224         typedef map<Buffer const * const, DocIterator> BufferPositionMap;
 225         typedef pair<DocIterator, Buffer const *> ScopeBuffer;
 226         typedef map<DocIterator, ScopeBuffer> PositionScopeBufferMap;
 227         /// position of children buffers in this buffer
 228         BufferPositionMap children_positions;
 229         /// map from children inclusion positions to their scope and their buffer
 230         PositionScopeBufferMap position_to_children;
 231
 232         /// Container for all sort of Buffer dependant errors.
 233         map<string, ErrorList> errorLists;
 234
 235         /// timestamp and checksum used to test if the file has been externally
 236         /// modified. (Used to properly enable 'File->Revert to saved', bug 4114).
 237         time_t timestamp_;
 238         unsigned long checksum_;
 239
 240         ///
 241         frontend::WorkAreaManager * wa_;
 242         ///
 243         frontend::GuiBufferDelegate * gui_;
 244
 245         ///
 246         Undo undo_;
 247
 248         /// A cache for the bibfiles (including bibfiles of loaded child
 249         /// documents), needed for appropriate update of natbib labels.
 250         mutable support::FileNameList bibfiles_cache_;
 251
 252         // FIXME The caching mechanism could be improved. At present, we have a
 253         // cache for each Buffer, that caches all the bibliography info for that
 254         // Buffer. A more efficient solution would be to have a global cache per
 255         // file, and then to construct the Buffer's bibinfo from that.
 256         /// A cache for bibliography info
 257         mutable BiblioInfo bibinfo_;
 258         /// whether the bibinfo cache is valid
 259         mutable bool bibinfo_cache_valid_;
 260         /// whether the bibfile cache is valid
 261         mutable bool bibfile_cache_valid_;
 262         /// Cache of timestamps of .bib files
 263         map<FileName, time_t> bibfile_status_;
 264         /// Indicates whether the bibinfo has changed since the last time
 265         /// we ran updateBuffer(), i.e., whether citation labels may need
 266         /// to be updated.
 267         mutable bool cite_labels_valid_;
 268
 269         mutable RefCache ref_cache_;
 270
 271         /// our Text that should be wrapped in an InsetText
 272         InsetText * inset;
 273
 274         ///
 275         PreviewLoader * preview_loader_;
 276
 277         /// This is here to force the test to be done whenever parent_buffer
 278         /// is accessed.
 279         Buffer const * parent() const {
 280                 // if parent_buffer is not loaded, then it has been unloaded,
 281                 // which means that parent_buffer is an invalid pointer. So we
 282                 // set it to null in that case.
 283                 // however, the BufferList doesn't know about cloned buffers, so
 284                 // they will always be regarded as unloaded. in that case, we hope
 285                 // for the best.
 286                 if (!cloned_buffer_ && !theBufferList().isLoaded(parent_buffer))
 287                         parent_buffer = 0;
 288                 return parent_buffer;
 289         }
 290
 291         ///
 292         void setParent(Buffer const * pb) {
 293                 if (parent_buffer == pb)
 294                         // nothing to do
 295                         return;
 296                 if (!cloned_buffer_ && parent_buffer && pb)
 297                         LYXERR0("Warning: a buffer should not have two parents!");
 298                 parent_buffer = pb;
 299                 if (!cloned_buffer_ && parent_buffer) {
 300                         parent_buffer->invalidateBibfileCache();
 301                         parent_buffer->invalidateBibinfoCache();
 302                 }
 303         }
 304
 305         /// If non zero, this buffer is a clone of existing buffer \p cloned_buffer_
 306         /// This one is useful for preview detached in a thread.
 307         Buffer const * cloned_buffer_;
 308         ///
 309         CloneList * clone_list_;
 310         /// are we in the process of exporting this buffer?
 311         mutable bool doing_export;
 312
 313 private:
 314         /// So we can force access via the accessors.
 315         mutable Buffer const * parent_buffer;
 316
 317 };
 318
 319
 320 /// Creates the per buffer temporary directory
 321 static FileName createBufferTmpDir()
 322 {
 323         static int count;
 324         // We are in our own directory.  Why bother to mangle name?
 325         // In fact I wrote this code to circumvent a problematic behaviour
 326         // (bug?) of EMX mkstemp().
 327         FileName tmpfl(package().temp_dir().absFileName() + "/lyx_tmpbuf" +
 328                 convert<string>(count++));
 329
 330         if (!tmpfl.createDirectory(0777)) {
 331                 throw ExceptionMessage(WarningException, _("Disk Error: "), bformat(
 332                         _("LyX could not create the temporary directory '%1$s' (Disk is full maybe?)"),
 333                         from_utf8(tmpfl.absFileName())));
 334         }
 335         return tmpfl;
 336 }
 337
 338
 339 Buffer::Impl::Impl(Buffer * owner, FileName const & file, bool readonly_,
 340         Buffer const * cloned_buffer)
 341         : owner_(owner), lyx_clean(true), bak_clean(true), unnamed(false),
 342           read_only(readonly_), filename(file), file_fully_loaded(false),
 343           toc_backend(owner), macro_lock(false), timestamp_(0), checksum_(0),
 344           wa_(0), gui_(0), undo_(*owner), bibinfo_cache_valid_(false),
 345           bibfile_cache_valid_(false), cite_labels_valid_(false),
 346           preview_loader_(0), cloned_buffer_(cloned_buffer), clone_list_(0),
 347           doing_export(false), parent_buffer(0)
 348 {
 349         if (!cloned_buffer_) {
 350                 temppath = createBufferTmpDir();
 351                 lyxvc.setBuffer(owner_);
 352                 if (use_gui)
 353                         wa_ = new frontend::WorkAreaManager;
 354                 return;
 355         }
 356         temppath = cloned_buffer_->d->temppath;
 357         file_fully_loaded = true;
 358         params = cloned_buffer_->d->params;
 359         bibfiles_cache_ = cloned_buffer_->d->bibfiles_cache_;
 360         bibinfo_ = cloned_buffer_->d->bibinfo_;
 361         bibinfo_cache_valid_ = cloned_buffer_->d->bibinfo_cache_valid_;
 362         bibfile_cache_valid_ = cloned_buffer_->d->bibfile_cache_valid_;
 363         bibfile_status_ = cloned_buffer_->d->bibfile_status_;
 364         cite_labels_valid_ = cloned_buffer_->d->cite_labels_valid_;
 365         unnamed = cloned_buffer_->d->unnamed;
 366 }
 367
 368
 369 Buffer::Buffer(string const & file, bool readonly, Buffer const * cloned_buffer)
 370         : d(new Impl(this, FileName(file), readonly, cloned_buffer))
 371 {
 372         LYXERR(Debug::INFO, "Buffer::Buffer()");
 373         if (cloned_buffer) {
 374                 d->inset = new InsetText(*cloned_buffer->d->inset);
 375                 d->inset->setBuffer(*this);
 376                 // FIXME: optimize this loop somewhat, maybe by creating a new
 377                 // general recursive Inset::setId().
 378                 DocIterator it = doc_iterator_begin(this);
 379                 DocIterator cloned_it = doc_iterator_begin(cloned_buffer);
 380                 for (; !it.atEnd(); it.forwardPar(), cloned_it.forwardPar())
 381                         it.paragraph().setId(cloned_it.paragraph().id());
 382         } else
 383                 d->inset = new InsetText(this);
 384         d->inset->setAutoBreakRows(true);
 385         d->inset->getText(0)->setMacrocontextPosition(par_iterator_begin());
 386 }
 387
 388
 389 Buffer::~Buffer()
 390 {
 391         LYXERR(Debug::INFO, "Buffer::~Buffer()");
 392         // here the buffer should take care that it is
 393         // saved properly, before it goes into the void.
 394
 395         // GuiView already destroyed
 396         d->gui_ = 0;
 397
 398         if (isInternal()) {
 399                 // No need to do additional cleanups for internal buffer.
 400                 delete d;
 401                 return;
 402         }
 403
 404         if (isClone()) {
 405                 // this is in case of recursive includes: we won't try to delete
 406                 // ourselves as a child.
 407                 d->clone_list_->erase(this);
 408                 // loop over children
 409                 Impl::BufferPositionMap::iterator it = d->children_positions.begin();
 410                 Impl::BufferPositionMap::iterator end = d->children_positions.end();
 411                 for (; it != end; ++it) {
 412                         Buffer * child = const_cast<Buffer *>(it->first);
 413                                 if (d->clone_list_->erase(child))
 414                                         delete child;
 415                 }
 416                 // if we're the master buffer, then we should get rid of the list
 417                 // of clones
 418                 if (!parent()) {
 419                         // if this is not empty, we have leaked something. worse, one of the
 420                         // children still has a reference to this list.
 421                         LASSERT(d->clone_list_->empty(), /* */);
 422                         list<CloneList *>::iterator it =
 423                                 find(cloned_buffers.begin(), cloned_buffers.end(), d->clone_list_);
 424                         LASSERT(it != cloned_buffers.end(), /* */);
 425                         cloned_buffers.erase(it);
 426                         delete d->clone_list_;
 427                 }
 428                 // FIXME Do we really need to do this right before we delete d?
 429                 // clear references to children in macro tables
 430                 d->children_positions.clear();
 431                 d->position_to_children.clear();
 432         } else {
 433                 // loop over children
 434                 Impl::BufferPositionMap::iterator it = d->children_positions.begin();
 435                 Impl::BufferPositionMap::iterator end = d->children_positions.end();
 436                 for (; it != end; ++it) {
 437                         Buffer * child = const_cast<Buffer *>(it->first);
 438                         if (theBufferList().isLoaded(child))
 439                                 theBufferList().releaseChild(this, child);
 440                 }
 441
 442                 if (!isClean()) {
 443                         docstring msg = _("LyX attempted to close a document that had unsaved changes!\n");
 444                         msg += emergencyWrite();
 445                         Alert::warning(_("Attempting to close changed document!"), msg);
 446                 }
 447
 448                 // FIXME Do we really need to do this right before we delete d?
 449                 // clear references to children in macro tables
 450                 d->children_positions.clear();
 451                 d->position_to_children.clear();
 452
 453                 if (!d->temppath.destroyDirectory()) {
 454                         Alert::warning(_("Could not remove temporary directory"),
 455                                 bformat(_("Could not remove the temporary directory %1$s"),
 456                                 from_utf8(d->temppath.absFileName())));
 457                 }
 458                 removePreviews();
 459         }
 460
 461         delete d;
 462 }
 463
 464
 465 Buffer * Buffer::cloneFromMaster() const
 466 {
 467         BufferMap bufmap;
 468         cloned_buffers.push_back(new CloneList());
 469         CloneList * clones = cloned_buffers.back();
 470
 471         masterBuffer()->cloneWithChildren(bufmap, clones);
 472
 473         // make sure we got cloned
 474         BufferMap::const_iterator bit = bufmap.find(this);
 475         LASSERT(bit != bufmap.end(), return 0);
 476         Buffer * cloned_buffer = bit->second;
 477
 478         return cloned_buffer;
 479 }
 480
 481
 482 void Buffer::cloneWithChildren(BufferMap & bufmap, CloneList * clones) const
 483 {
 484         // have we already been cloned?
 485         if (bufmap.find(this) != bufmap.end())
 486                 return;
 487
 488         Buffer * buffer_clone = new Buffer(fileName().absFileName(), false, this);
 489         bufmap[this] = buffer_clone;
 490         clones->insert(buffer_clone);
 491         buffer_clone->d->clone_list_ = clones;
 492         buffer_clone->d->macro_lock = true;
 493         buffer_clone->d->children_positions.clear();
 494         // FIXME (Abdel 09/01/2010): this is too complicated. The whole children_positions and
 495         // math macro caches need to be rethought and simplified.
 496         // I am not sure wether we should handle Buffer cloning here or in BufferList.
 497         // Right now BufferList knows nothing about buffer clones.
 498         Impl::PositionScopeBufferMap::iterator it = d->position_to_children.begin();
 499         Impl::PositionScopeBufferMap::iterator end = d->position_to_children.end();
 500         for (; it != end; ++it) {
 501                 DocIterator dit = it->first.clone(buffer_clone);
 502                 dit.setBuffer(buffer_clone);
 503                 Buffer * child = const_cast<Buffer *>(it->second.second);
 504
 505                 child->cloneWithChildren(bufmap, clones);
 506                 BufferMap::iterator const bit = bufmap.find(child);
 507                 LASSERT(bit != bufmap.end(), continue);
 508                 Buffer * child_clone = bit->second;
 509
 510                 Inset * inset = dit.nextInset();
 511                 LASSERT(inset && inset->lyxCode() == INCLUDE_CODE, continue);
 512                 InsetInclude * inset_inc = static_cast<InsetInclude *>(inset);
 513                 inset_inc->setChildBuffer(child_clone);
 514                 child_clone->d->setParent(buffer_clone);
 515                 // FIXME Do we need to do this now, or can we wait until we run updateMacros()?
 516                 buffer_clone->setChild(dit, child_clone);
 517         }
 518         buffer_clone->d->macro_lock = false;
 519         return;
 520 }
 521
 522
 523 Buffer * Buffer::cloneBufferOnly() const {
 524         cloned_buffers.push_back(new CloneList());
 525         CloneList * clones = cloned_buffers.back();
 526         Buffer * buffer_clone = new Buffer(fileName().absFileName(), false, this);
 527         clones->insert(buffer_clone);
 528         buffer_clone->d->clone_list_ = clones;
 529         // we won't be cloning the children
 530         buffer_clone->d->children_positions.clear();
 531         return buffer_clone;
 532 }
 533
 534
 535 bool Buffer::isClone() const
 536 {
 537         return d->cloned_buffer_;
 538 }
 539
 540
 541 void Buffer::changed(bool update_metrics) const
 542 {
 543         if (d->wa_)
 544                 d->wa_->redrawAll(update_metrics);
 545 }
 546
 547
 548 frontend::WorkAreaManager & Buffer::workAreaManager() const
 549 {
 550         LASSERT(d->wa_, /**/);
 551         return *d->wa_;
 552 }
 553
 554
 555 Text & Buffer::text() const
 556 {
 557         return d->inset->text();
 558 }
 559
 560
 561 Inset & Buffer::inset() const
 562 {
 563         return *d->inset;
 564 }
 565
 566
 567 BufferParams & Buffer::params()
 568 {
 569         return d->params;
 570 }
 571
 572
 573 BufferParams const & Buffer::params() const
 574 {
 575         return d->params;
 576 }
 577
 578
 579 ParagraphList & Buffer::paragraphs()
 580 {
 581         return text().paragraphs();
 582 }
 583
 584
 585 ParagraphList const & Buffer::paragraphs() const
 586 {
 587         return text().paragraphs();
 588 }
 589
 590
 591 LyXVC & Buffer::lyxvc()
 592 {
 593         return d->lyxvc;
 594 }
 595
 596
 597 LyXVC const & Buffer::lyxvc() const
 598 {
 599         return d->lyxvc;
 600 }
 601
 602
 603 string const Buffer::temppath() const
 604 {
 605         return d->temppath.absFileName();
 606 }
 607
 608
 609 TexRow & Buffer::texrow()
 610 {
 611         return d->texrow;
 612 }
 613
 614
 615 TexRow const & Buffer::texrow() const
 616 {
 617         return d->texrow;
 618 }
 619
 620
 621 TocBackend & Buffer::tocBackend() const
 622 {
 623         return d->toc_backend;
 624 }
 625
 626
 627 Undo & Buffer::undo()
 628 {
 629         return d->undo_;
 630 }
 631
 632
 633 void Buffer::setChild(DocIterator const & dit, Buffer * child)
 634 {
 635         d->children_positions[child] = dit;
 636 }
 637
 638
 639 string Buffer::latexName(bool const no_path) const
 640 {
 641         FileName latex_name =
 642                 makeLatexName(d->exportFileName());
 643         return no_path ? latex_name.onlyFileName()
 644                 : latex_name.absFileName();
 645 }
 646
 647
 648 FileName Buffer::Impl::exportFileName() const
 649 {
 650         docstring const branch_suffix =
 651                 params.branchlist().getFileNameSuffix();
 652         if (branch_suffix.empty())
 653                 return filename;
 654
 655         string const name = filename.onlyFileNameWithoutExt()
 656                 + to_utf8(branch_suffix);
 657         FileName res(filename.onlyPath().absFileName() + "/" + name);
 658         res.changeExtension(filename.extension());
 659
 660         return res;
 661 }
 662
 663
 664 string Buffer::logName(LogType * type) const
 665 {
 666         string const filename = latexName(false);
 667
 668         if (filename.empty()) {
 669                 if (type)
 670                         *type = latexlog;
 671                 return string();
 672         }
 673
 674         string const path = temppath();
 675
 676         FileName const fname(addName(temppath(),
 677                                      onlyFileName(changeExtension(filename,
 678                                                                   ".log"))));
 679
 680         // FIXME: how do we know this is the name of the build log?
 681         FileName const bname(
 682                 addName(path, onlyFileName(
 683                         changeExtension(filename,
 684                                         formats.extension(params().bufferFormat()) + ".out"))));
 685
 686         // Also consider the master buffer log file
 687         FileName masterfname = fname;
 688         LogType mtype;
 689         if (masterBuffer() != this) {
 690                 string const mlogfile = masterBuffer()->logName(&mtype);
 691                 masterfname = FileName(mlogfile);
 692         }
 693
 694         // If no Latex log or Build log is newer, show Build log
 695         if (bname.exists() &&
 696             ((!fname.exists() && !masterfname.exists())
 697              || (fname.lastModified() < bname.lastModified()
 698                  && masterfname.lastModified() < bname.lastModified()))) {
 699                 LYXERR(Debug::FILES, "Log name calculated as: " << bname);
 700                 if (type)
 701                         *type = buildlog;
 702                 return bname.absFileName();
 703         // If we have a newer master file log or only a master log, show this
 704         } else if (fname != masterfname
 705                    && (!fname.exists() && (masterfname.exists()
 706                    || fname.lastModified() < masterfname.lastModified()))) {
 707                 LYXERR(Debug::FILES, "Log name calculated as: " << masterfname);
 708                 if (type)
 709                         *type = mtype;
 710                 return masterfname.absFileName();
 711         }
 712         LYXERR(Debug::FILES, "Log name calculated as: " << fname);
 713         if (type)
 714                         *type = latexlog;
 715         return fname.absFileName();
 716 }
 717
 718
 719 void Buffer::setReadonly(bool const flag)
 720 {
 721         if (d->read_only != flag) {
 722                 d->read_only = flag;
 723                 changed(false);
 724         }
 725 }
 726
 727
 728 void Buffer::setFileName(FileName const & fname)
 729 {
 730         d->filename = fname;
 731         setReadonly(d->filename.isReadOnly());
 732         saveCheckSum();
 733         updateTitles();
 734 }
 735
 736
 737 int Buffer::readHeader(Lexer & lex)
 738 {
 739         int unknown_tokens = 0;
 740         int line = -1;
 741         int begin_header_line = -1;
 742
 743         // Initialize parameters that may be/go lacking in header:
 744         params().branchlist().clear();
 745         params().preamble.erase();
 746         params().options.erase();
 747         params().master.erase();
 748         params().float_placement.erase();
 749         params().paperwidth.erase();
 750         params().paperheight.erase();
 751         params().leftmargin.erase();
 752         params().rightmargin.erase();
 753         params().topmargin.erase();
 754         params().bottommargin.erase();
 755         params().headheight.erase();
 756         params().headsep.erase();
 757         params().footskip.erase();
 758         params().columnsep.erase();
 759         params().fonts_cjk.erase();
 760         params().listings_params.clear();
 761         params().clearLayoutModules();
 762         params().clearRemovedModules();
 763         params().clearIncludedChildren();
 764         params().pdfoptions().clear();
 765         params().indiceslist().clear();
 766         params().backgroundcolor = lyx::rgbFromHexName("#ffffff");
 767         params().isbackgroundcolor = false;
 768         params().fontcolor = RGBColor(0, 0, 0);
 769         params().isfontcolor = false;
 770         params().notefontcolor = RGBColor(0xCC, 0xCC, 0xCC);
 771         params().boxbgcolor = RGBColor(0xFF, 0, 0);
 772         params().html_latex_start.clear();
 773         params().html_latex_end.clear();
 774         params().html_math_img_scale = 1.0;
 775         params().output_sync_macro.erase();
 776
 777         for (int i = 0; i < 4; ++i) {
 778                 params().user_defined_bullet(i) = ITEMIZE_DEFAULTS[i];
 779                 params().temp_bullet(i) = ITEMIZE_DEFAULTS[i];
 780         }
 781
 782         ErrorList & errorList = d->errorLists["Parse"];
 783
 784         while (lex.isOK()) {
 785                 string token;
 786                 lex >> token;
 787
 788                 if (token.empty())
 789                         continue;
 790
 791                 if (token == "\\end_header")
 792                         break;
 793
 794                 ++line;
 795                 if (token == "\\begin_header") {
 796                         begin_header_line = line;
 797                         continue;
 798                 }
 799
 800                 LYXERR(Debug::PARSER, "Handling document header token: `"
 801                                       << token << '\'');
 802
 803                 string unknown = params().readToken(lex, token, d->filename.onlyPath());
 804                 if (!unknown.empty()) {
 805                         if (unknown[0] != '\\' && token == "\\textclass") {
 806                                 Alert::warning(_("Unknown document class"),
 807                        bformat(_("Using the default document class, because the "
 808                                               "class %1$s is unknown."), from_utf8(unknown)));
 809                         } else {
 810                                 ++unknown_tokens;
 811                                 docstring const s = bformat(_("Unknown token: "
 812                                                                         "%1$s %2$s\n"),
 813                                                          from_utf8(token),
 814                                                          lex.getDocString());
 815                                 errorList.push_back(ErrorItem(_("Document header error"),
 816                                         s, -1, 0, 0));
 817                         }
 818                 }
 819         }
 820         if (begin_header_line) {
 821                 docstring const s = _("\\begin_header is missing");
 822                 errorList.push_back(ErrorItem(_("Document header error"),
 823                         s, -1, 0, 0));
 824         }
 825
 826         params().makeDocumentClass();
 827
 828         return unknown_tokens;
 829 }
 830
 831
 832 // Uwe C. Schroeder
 833 // changed to be public and have one parameter
 834 // Returns true if "\end_document" is not read (Asger)
 835 bool Buffer::readDocument(Lexer & lex)
 836 {
 837         ErrorList & errorList = d->errorLists["Parse"];
 838         errorList.clear();
 839
 840         // remove dummy empty par
 841         paragraphs().clear();
 842
 843         if (!lex.checkFor("\\begin_document")) {
 844                 docstring const s = _("\\begin_document is missing");
 845                 errorList.push_back(ErrorItem(_("Document header error"),
 846                         s, -1, 0, 0));
 847         }
 848
 849         readHeader(lex);
 850
 851         if (params().outputChanges) {
 852                 bool dvipost    = LaTeXFeatures::isAvailable("dvipost");
 853                 bool xcolorulem = LaTeXFeatures::isAvailable("ulem") &&
 854                                   LaTeXFeatures::isAvailable("xcolor");
 855
 856                 if (!dvipost && !xcolorulem) {
 857                         Alert::warning(_("Changes not shown in LaTeX output"),
 858                                        _("Changes will not be highlighted in LaTeX output, "
 859                                          "because neither dvipost nor xcolor/ulem are installed.\n"
 860                                          "Please install these packages or redefine "
 861                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 862                 } else if (!xcolorulem) {
 863                         Alert::warning(_("Changes not shown in LaTeX output"),
 864                                        _("Changes will not be highlighted in LaTeX output "
 865                                          "when using pdflatex, because xcolor and ulem are not installed.\n"
 866                                          "Please install both packages or redefine "
 867                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 868                 }
 869         }
 870
 871         if (!params().master.empty()) {
 872                 FileName const master_file = makeAbsPath(params().master,
 873                            onlyPath(absFileName()));
 874                 if (isLyXFileName(master_file.absFileName())) {
 875                         Buffer * master =
 876                                 checkAndLoadLyXFile(master_file, true);
 877                         if (master) {
 878                                 // necessary e.g. after a reload
 879                                 // to re-register the child (bug 5873)
 880                                 // FIXME: clean up updateMacros (here, only
 881                                 // child registering is needed).
 882                                 master->updateMacros();
 883                                 // set master as master buffer, but only
 884                                 // if we are a real child
 885                                 if (master->isChild(this))
 886                                         setParent(master);
 887                                 // if the master is not fully loaded
 888                                 // it is probably just loading this
 889                                 // child. No warning needed then.
 890                                 else if (master->isFullyLoaded())
 891                                         LYXERR0("The master '"
 892                                                 << params().master
 893                                                 << "' assigned to this document ("
 894                                                 << absFileName()
 895                                                 << ") does not include "
 896                                                 "this document. Ignoring the master assignment.");
 897                         }
 898                 }
 899         }
 900
 901         // assure we have a default index
 902         params().indiceslist().addDefault(B_("Index"));
 903
 904         // read main text
 905         bool const res = text().read(lex, errorList, d->inset);
 906
 907         // inform parent buffer about local macros
 908         if (parent()) {
 909                 Buffer const * pbuf = parent();
 910                 UserMacroSet::const_iterator cit = usermacros.begin();
 911                 UserMacroSet::const_iterator end = usermacros.end();
 912                 for (; cit != end; ++cit)
 913                         pbuf->usermacros.insert(*cit);
 914         }
 915         usermacros.clear();
 916         updateMacros();
 917         updateMacroInstances(InternalUpdate);
 918         return res;
 919 }
 920
 921
 922 bool Buffer::readString(string const & s)
 923 {
 924         params().compressed = false;
 925
 926         Lexer lex;
 927         istringstream is(s);
 928         lex.setStream(is);
 929         FileName const fn = FileName::tempName("Buffer_readString");
 930
 931         int file_format;
 932         ReadStatus const ret_plf = parseLyXFormat(lex, fn, file_format);
 933         if (ret_plf != ReadSuccess)
 934                 return ret_plf;
 935
 936         if (file_format != LYX_FORMAT) {
 937                 // We need to call lyx2lyx, so write the input to a file
 938                 ofstream os(fn.toFilesystemEncoding().c_str());
 939                 os << s;
 940                 os.close();
 941                 // lyxvc in readFile
 942                 return readFile(fn) == ReadSuccess;
 943         }
 944
 945         if (readDocument(lex))
 946                 return false;
 947         return true;
 948 }
 949
 950
 951 Buffer::ReadStatus Buffer::readFile(FileName const & fn)
 952 {
 953         FileName fname(fn);
 954         Lexer lex;
 955         if (!lex.setFile(fname)) {
 956                 Alert::error(_("File Not Found"),
 957                         bformat(_("Unable to open file `%1$s'."),
 958                                 from_utf8(fn.absFileName())));
 959                 return ReadFileNotFound;
 960         }
 961
 962         int file_format;
 963         ReadStatus const ret_plf = parseLyXFormat(lex, fn, file_format);
 964         if (ret_plf != ReadSuccess)
 965                 return ret_plf;
 966
 967         if (file_format != LYX_FORMAT) {
 968                 FileName tmpFile;
 969                 ReadStatus const ret_clf = convertLyXFormat(fn, tmpFile, file_format);
 970                 if (ret_clf != ReadSuccess)
 971                         return ret_clf;
 972                 return readFile(tmpFile);
 973         }
 974
 975         // FIXME: InsetInfo needs to know whether the file is under VCS
 976         // during the parse process, so this has to be done before.
 977         lyxvc().file_found_hook(d->filename);
 978
 979         if (readDocument(lex)) {
 980                 Alert::error(_("Document format failure"),
 981                         bformat(_("%1$s ended unexpectedly, which means"
 982                                 " that it is probably corrupted."),
 983                                         from_utf8(fn.absFileName())));
 984                 return ReadDocumentFailure;
 985         }
 986
 987         d->file_fully_loaded = true;
 988         d->read_only = !d->filename.isWritable();
 989         params().compressed = d->filename.isZippedFile();
 990         saveCheckSum();
 991         return ReadSuccess;
 992 }
 993
 994
 995 bool Buffer::isFullyLoaded() const
 996 {
 997         return d->file_fully_loaded;
 998 }
 999
1000
1001 void Buffer::setFullyLoaded(bool value)
1002 {
1003         d->file_fully_loaded = value;
1004 }
1005
1006
1007 PreviewLoader * Buffer::loader() const
1008 {
1009         if (!isExporting() && lyxrc.preview == LyXRC::PREVIEW_OFF)
1010                 return 0;
1011         if (!d->preview_loader_)
1012                 d->preview_loader_ = new PreviewLoader(*this);
1013         return d->preview_loader_;
1014 }
1015
1016
1017 void Buffer::removePreviews() const
1018 {
1019         delete d->preview_loader_;
1020         d->preview_loader_ = 0;
1021 }
1022
1023
1024 void Buffer::updatePreviews() const
1025 {
1026         PreviewLoader * ploader = loader();
1027         if (!ploader)
1028                 return;
1029
1030         InsetIterator it = inset_iterator_begin(*d->inset);
1031         InsetIterator const end = inset_iterator_end(*d->inset);
1032         for (; it != end; ++it)
1033                 it->addPreview(it, *ploader);
1034
1035         ploader->startLoading();
1036 }
1037
1038
1039 Buffer::ReadStatus Buffer::parseLyXFormat(Lexer & lex,
1040         FileName const & fn, int & file_format) const
1041 {
1042         if(!lex.checkFor("\\lyxformat")) {
1043                 Alert::error(_("Document format failure"),
1044                         bformat(_("%1$s is not a readable LyX document."),
1045                                 from_utf8(fn.absFileName())));
1046                 return ReadNoLyXFormat;
1047         }
1048
1049         string tmp_format;
1050         lex >> tmp_format;
1051
1052         // LyX formats 217 and earlier were written as 2.17. This corresponds
1053         // to files from LyX versions < 1.1.6.3. We just remove the dot in
1054         // these cases. See also: www.lyx.org/trac/changeset/1313.
1055         size_t dot = tmp_format.find_first_of(".,");
1056         if (dot != string::npos)
1057                 tmp_format.erase(dot, 1);
1058
1059         file_format = convert<int>(tmp_format);
1060         return ReadSuccess;
1061 }
1062
1063
1064 Buffer::ReadStatus Buffer::convertLyXFormat(FileName const & fn,
1065         FileName & tmpfile, int from_format)
1066 {
1067         tmpfile = FileName::tempName("Buffer_convertLyXFormat");
1068         if(tmpfile.empty()) {
1069                 Alert::error(_("Conversion failed"),
1070                         bformat(_("%1$s is from a different"
1071                                 " version of LyX, but a temporary"
1072                                 " file for converting it could"
1073                                 " not be created."),
1074                                 from_utf8(fn.absFileName())));
1075                 return LyX2LyXNoTempFile;
1076         }
1077
1078         FileName const lyx2lyx = libFileSearch("lyx2lyx", "lyx2lyx");
1079         if (lyx2lyx.empty()) {
1080                 Alert::error(_("Conversion script not found"),
1081                      bformat(_("%1$s is from a different"
1082                                " version of LyX, but the"
1083                                " conversion script lyx2lyx"
1084                                " could not be found."),
1085                                from_utf8(fn.absFileName())));
1086                 return LyX2LyXNotFound;
1087         }
1088
1089         // Run lyx2lyx:
1090         //   $python$ "$lyx2lyx$" -t $LYX_FORMAT$ -o "$tempfile$" "$filetoread$"
1091         ostringstream command;
1092         command << os::python()
1093                 << ' ' << quoteName(lyx2lyx.toFilesystemEncoding())
1094                 << " -t " << convert<string>(LYX_FORMAT)
1095                 << " -o " << quoteName(tmpfile.toFilesystemEncoding())
1096                 << ' ' << quoteName(fn.toSafeFilesystemEncoding());
1097         string const command_str = command.str();
1098
1099         LYXERR(Debug::INFO, "Running '" << command_str << '\'');
1100
1101         cmd_ret const ret = runCommand(command_str);
1102         if (ret.first != 0) {
1103                 if (from_format < LYX_FORMAT) {
1104                         Alert::error(_("Conversion script failed"),
1105                                 bformat(_("%1$s is from an older version"
1106                                         " of LyX and the lyx2lyx script"
1107                                         " failed to convert it."),
1108                                         from_utf8(fn.absFileName())));
1109                         return LyX2LyXOlderFormat;
1110                 } else {
1111                         Alert::error(_("Conversion script failed"),
1112                                 bformat(_("%1$s is from a newer version"
1113                                         " of LyX and the lyx2lyx script"
1114                                         " failed to convert it."),
1115                                         from_utf8(fn.absFileName())));
1116                         return LyX2LyXNewerFormat;
1117                 }
1118         }
1119         return ReadSuccess;
1120 }
1121
1122
1123 // Should probably be moved to somewhere else: BufferView? GuiView?
1124 bool Buffer::save() const
1125 {
1126         docstring const file = makeDisplayPath(absFileName(), 20);
1127         d->filename.refresh();
1128
1129         // check the read-only status before moving the file as a backup
1130         if (d->filename.exists()) {
1131                 bool const read_only = !d->filename.isWritable();
1132                 if (read_only) {
1133                         Alert::warning(_("File is read-only"),
1134                                 bformat(_("The file %1$s cannot be written because it "
1135                                 "is marked as read-only."), file));
1136                         return false;
1137                 }
1138         }
1139
1140         // ask if the disk file has been externally modified (use checksum method)
1141         if (fileName().exists() && isExternallyModified(checksum_method)) {
1142                 docstring text =
1143                         bformat(_("Document %1$s has been externally modified. "
1144                                 "Are you sure you want to overwrite this file?"), file);
1145                 int const ret = Alert::prompt(_("Overwrite modified file?"),
1146                         text, 1, 1, _("&Overwrite"), _("&Cancel"));
1147                 if (ret == 1)
1148                         return false;
1149         }
1150
1151         // We don't need autosaves in the immediate future. (Asger)
1152         resetAutosaveTimers();
1153
1154         FileName backupName;
1155         bool madeBackup = false;
1156
1157         // make a backup if the file already exists
1158         if (lyxrc.make_backup && fileName().exists()) {
1159                 backupName = FileName(absFileName() + '~');
1160                 if (!lyxrc.backupdir_path.empty()) {
1161                         string const mangledName =
1162                                 subst(subst(backupName.absFileName(), '/', '!'), ':', '!');
1163                         backupName = FileName(addName(lyxrc.backupdir_path,
1164                                                       mangledName));
1165                 }
1166
1167                 // Except file is symlink do not copy because of #6587.
1168                 // Hard links have bad luck.
1169                 if (fileName().isSymLink())
1170                         madeBackup = fileName().copyTo(backupName);
1171                 else
1172                         madeBackup = fileName().moveTo(backupName);
1173
1174                 if (!madeBackup) {
1175                         Alert::error(_("Backup failure"),
1176                                      bformat(_("Cannot create backup file %1$s.\n"
1177                                                "Please check whether the directory exists and is writable."),
1178                                              from_utf8(backupName.absFileName())));
1179                         //LYXERR(Debug::DEBUG, "Fs error: " << fe.what());
1180                 }
1181         }
1182
1183         if (writeFile(d->filename)) {
1184                 markClean();
1185                 return true;
1186         } else {
1187                 // Saving failed, so backup is not backup
1188                 if (madeBackup)
1189                         backupName.moveTo(d->filename);
1190                 return false;
1191         }
1192 }
1193
1194
1195 bool Buffer::writeFile(FileName const & fname) const
1196 {
1197         // FIXME Do we need to do these here? I don't think writing
1198         // the LyX file depends upon it. (RGH)
1199         // updateBuffer();
1200         // updateMacroInstances();
1201
1202         if (d->read_only && fname == d->filename)
1203                 return false;
1204
1205         bool retval = false;
1206
1207         docstring const str = bformat(_("Saving document %1$s..."),
1208                 makeDisplayPath(fname.absFileName()));
1209         message(str);
1210
1211         string const encoded_fname = fname.toSafeFilesystemEncoding(os::CREATE);
1212
1213         if (params().compressed) {
1214                 gz::ogzstream ofs(encoded_fname.c_str(), ios::out|ios::trunc);
1215                 retval = ofs && write(ofs);
1216         } else {
1217                 ofstream ofs(encoded_fname.c_str(), ios::out|ios::trunc);
1218                 retval = ofs && write(ofs);
1219         }
1220
1221         if (!retval) {
1222                 message(str + _(" could not write file!"));
1223                 return false;
1224         }
1225
1226         // see bug 6587
1227         // removeAutosaveFile();
1228
1229         saveCheckSum();
1230         message(str + _(" done."));
1231
1232         return true;
1233 }
1234
1235
1236 docstring Buffer::emergencyWrite()
1237 {
1238         // No need to save if the buffer has not changed.
1239         if (isClean())
1240                 return docstring();
1241
1242         string const doc = isUnnamed() ? onlyFileName(absFileName()) : absFileName();
1243
1244         docstring user_message = bformat(
1245                 _("LyX: Attempting to save document %1$s\n"), from_utf8(doc));
1246
1247         // We try to save three places:
1248         // 1) Same place as document. Unless it is an unnamed doc.
1249         if (!isUnnamed()) {
1250                 string s = absFileName();
1251                 s += ".emergency";
1252                 LYXERR0("  " << s);
1253                 if (writeFile(FileName(s))) {
1254                         markClean();
1255                         user_message += "  " + bformat(_("Saved to %1$s. Phew.\n"), from_utf8(s));
1256                         return user_message;
1257                 } else {
1258                         user_message += "  " + _("Save failed! Trying again...\n");
1259                 }
1260         }
1261
1262         // 2) In HOME directory.
1263         string s = addName(Package::get_home_dir().absFileName(), absFileName());
1264         s += ".emergency";
1265         lyxerr << ' ' << s << endl;
1266         if (writeFile(FileName(s))) {
1267                 markClean();
1268                 user_message += "  " + bformat(_("Saved to %1$s. Phew.\n"), from_utf8(s));
1269                 return user_message;
1270         }
1271
1272         user_message += "  " + _("Save failed! Trying yet again...\n");
1273
1274         // 3) In "/tmp" directory.
1275         // MakeAbsPath to prepend the current
1276         // drive letter on OS/2
1277         s = addName(package().temp_dir().absFileName(), absFileName());
1278         s += ".emergency";
1279         lyxerr << ' ' << s << endl;
1280         if (writeFile(FileName(s))) {
1281                 markClean();
1282                 user_message += "  " + bformat(_("Saved to %1$s. Phew.\n"), from_utf8(s));
1283                 return user_message;
1284         }
1285
1286         user_message += "  " + _("Save failed! Bummer. Document is lost.");
1287         // Don't try again.
1288         markClean();
1289         return user_message;
1290 }
1291
1292
1293 bool Buffer::write(ostream & ofs) const
1294 {
1295 #ifdef HAVE_LOCALE
1296         // Use the standard "C" locale for file output.
1297         ofs.imbue(locale::classic());
1298 #endif
1299
1300         // The top of the file should not be written by params().
1301
1302         // write out a comment in the top of the file
1303         ofs << "#LyX " << lyx_version_major << "." << lyx_version_minor
1304             << " created this file. For more info see http://www.lyx.org/\n"
1305             << "\\lyxformat " << LYX_FORMAT << "\n"
1306             << "\\begin_document\n";
1307
1308         /// For each author, set 'used' to true if there is a change
1309         /// by this author in the document; otherwise set it to 'false'.
1310         AuthorList::Authors::const_iterator a_it = params().authors().begin();
1311         AuthorList::Authors::const_iterator a_end = params().authors().end();
1312         for (; a_it != a_end; ++a_it)
1313                 a_it->setUsed(false);
1314
1315         ParIterator const end = const_cast<Buffer *>(this)->par_iterator_end();
1316         ParIterator it = const_cast<Buffer *>(this)->par_iterator_begin();
1317         for ( ; it != end; ++it)
1318                 it->checkAuthors(params().authors());
1319
1320         // now write out the buffer parameters.
1321         ofs << "\\begin_header\n";
1322         params().writeFile(ofs);
1323         ofs << "\\end_header\n";
1324
1325         // write the text
1326         ofs << "\n\\begin_body\n";
1327         text().write(ofs);
1328         ofs << "\n\\end_body\n";
1329
1330         // Write marker that shows file is complete
1331         ofs << "\\end_document" << endl;
1332
1333         // Shouldn't really be needed....
1334         //ofs.close();
1335
1336         // how to check if close went ok?
1337         // Following is an attempt... (BE 20001011)
1338
1339         // good() returns false if any error occured, including some
1340         //        formatting error.
1341         // bad()  returns true if something bad happened in the buffer,
1342         //        which should include file system full errors.
1343
1344         bool status = true;
1345         if (!ofs) {
1346                 status = false;
1347                 lyxerr << "File was not closed properly." << endl;
1348         }
1349
1350         return status;
1351 }
1352
1353
1354 bool Buffer::makeLaTeXFile(FileName const & fname,
1355                            string const & original_path,
1356                            OutputParams const & runparams_in,
1357                            OutputWhat output) const
1358 {
1359         OutputParams runparams = runparams_in;
1360
1361         // This is necessary for LuaTeX/XeTeX with tex fonts.
1362         // See FIXME in BufferParams::encoding()
1363         if (runparams.isFullUnicode())
1364                 runparams.encoding = encodings.fromLyXName("utf8-plain");
1365
1366         string const encoding = runparams.encoding->iconvName();
1367         LYXERR(Debug::LATEX, "makeLaTeXFile encoding: " << encoding << ", fname=" << fname.realPath());
1368
1369         ofdocstream ofs;
1370         try { ofs.reset(encoding); }
1371         catch (iconv_codecvt_facet_exception & e) {
1372                 lyxerr << "Caught iconv exception: " << e.what() << endl;
1373                 Alert::error(_("Iconv software exception Detected"), bformat(_("Please "
1374                         "verify that the support software for your encoding (%1$s) is "
1375                         "properly installed"), from_ascii(encoding)));
1376                 return false;
1377         }
1378         if (!openFileWrite(ofs, fname))
1379                 return false;
1380
1381         //TexStream ts(ofs.rdbuf(), &texrow());
1382         ErrorList & errorList = d->errorLists["Export"];
1383         errorList.clear();
1384         bool failed_export = false;
1385         otexstream os(ofs, d->texrow);
1386
1387         // make sure we are ready to export
1388         // this needs to be done before we validate
1389         // FIXME Do we need to do this all the time? I.e., in children
1390         // of a master we are exporting?
1391         updateBuffer();
1392         updateMacroInstances(OutputUpdate);
1393
1394         try {
1395                 os.texrow().reset();
1396                 writeLaTeXSource(os, original_path, runparams, output);
1397         }
1398         catch (EncodingException & e) {
1399                 odocstringstream ods;
1400                 ods.put(e.failed_char);
1401                 ostringstream oss;
1402                 oss << "0x" << hex << e.failed_char << dec;
1403                 docstring msg = bformat(_("Could not find LaTeX command for character '%1$s'"
1404                                           " (code point %2$s)"),
1405                                           ods.str(), from_utf8(oss.str()));
1406                 errorList.push_back(ErrorItem(msg, _("Some characters of your document are probably not "
1407                                 "representable in the chosen encoding.\n"
1408                                 "Changing the document encoding to utf8 could help."),
1409                                 e.par_id, e.pos, e.pos + 1));
1410                 failed_export = true;
1411         }
1412         catch (iconv_codecvt_facet_exception & e) {
1413                 errorList.push_back(ErrorItem(_("iconv conversion failed"),
1414                         _(e.what()), -1, 0, 0));
1415                 failed_export = true;
1416         }
1417         catch (exception const & e) {
1418                 errorList.push_back(ErrorItem(_("conversion failed"),
1419                         _(e.what()), -1, 0, 0));
1420                 failed_export = true;
1421         }
1422         catch (...) {
1423                 lyxerr << "Caught some really weird exception..." << endl;
1424                 lyx_exit(1);
1425         }
1426
1427         ofs.close();
1428         if (ofs.fail()) {
1429                 failed_export = true;
1430                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1431         }
1432
1433         errors("Export");
1434         return !failed_export;
1435 }
1436
1437
1438 void Buffer::writeLaTeXSource(otexstream & os,
1439                            string const & original_path,
1440                            OutputParams const & runparams_in,
1441          OutputWhat output) const
1442 {
1443         // The child documents, if any, shall be already loaded at this point.
1444
1445         OutputParams runparams = runparams_in;
1446
1447         // Classify the unicode characters appearing in math insets
1448         Encodings::initUnicodeMath(*this);
1449
1450         // validate the buffer.
1451         LYXERR(Debug::LATEX, "  Validating buffer...");
1452         LaTeXFeatures features(*this, params(), runparams);
1453         validate(features);
1454         LYXERR(Debug::LATEX, "  Buffer validation done.");
1455
1456         bool const output_preamble =
1457                 output == FullSource || output == OnlyPreamble;
1458         bool const output_body =
1459           output == FullSource || output == OnlyBody;
1460
1461         // The starting paragraph of the coming rows is the
1462         // first paragraph of the document. (Asger)
1463         if (output_preamble && runparams.nice) {
1464                 os << "%% LyX " << lyx_version << " created this file.  "
1465                         "For more info, see http://www.lyx.org/.\n"
1466                         "%% Do not edit unless you really know what "
1467                         "you are doing.\n";
1468         }
1469         LYXERR(Debug::INFO, "lyx document header finished");
1470
1471         // There are a few differences between nice LaTeX and usual files:
1472         // usual files have \batchmode and special input@path to allow
1473         // inclusion of figures specified by an explicitly relative path
1474         // (i.e., a path starting with './' or '../') with either \input or
1475         // \includegraphics, as the TEXINPUTS method doesn't work in this case.
1476         // input@path is set when the actual parameter original_path is set.
1477         // This is done for usual tex-file, but not for nice-latex-file.
1478         // (Matthias 250696)
1479         // Note that input@path is only needed for something the user does
1480         // in the preamble, included .tex files or ERT, files included by
1481         // LyX work without it.
1482         if (output_preamble) {
1483                 if (!runparams.nice) {
1484                         // code for usual, NOT nice-latex-file
1485                         os << "\\batchmode\n"; // changed from \nonstopmode
1486                 }
1487                 if (!original_path.empty()) {
1488                         // FIXME UNICODE
1489                         // We don't know the encoding of inputpath
1490                         docstring const inputpath = from_utf8(original_path);
1491                         docstring uncodable_glyphs;
1492                         Encoding const * const enc = runparams.encoding;
1493                         if (enc) {
1494                                 for (size_t n = 0; n < inputpath.size(); ++n) {
1495                                         docstring const glyph =
1496                                                 docstring(1, inputpath[n]);
1497                                         if (enc->latexChar(inputpath[n], true) != glyph) {
1498                                                 LYXERR0("Uncodable character '"
1499                                                         << glyph
1500                                                         << "' in input path!");
1501                                                 uncodable_glyphs += glyph;
1502                                         }
1503                                 }
1504                         }
1505
1506                         // warn user if we found uncodable glyphs.
1507                         if (!uncodable_glyphs.empty()) {
1508                                 frontend::Alert::warning(
1509                                         _("Uncodable character in file path"),
1510                                         support::bformat(
1511                                           _("The path of your document\n"
1512                                             "(%1$s)\n"
1513                                             "contains glyphs that are unknown "
1514                                             "in the current document encoding "
1515                                             "(namely %2$s). This may result in "
1516                                             "incomplete output, unless "
1517                                             "TEXINPUTS contains the document "
1518                                             "directory and you don't use "
1519                                             "explicitly relative paths (i.e., "
1520                                             "paths starting with './' or "
1521                                             "'../') in the preamble or in ERT."
1522                                             "\n\nIn case of problems, choose "
1523                                             "an appropriate document encoding\n"
1524                                             "(such as utf8) or change the "
1525                                             "file path name."),
1526                                           inputpath, uncodable_glyphs));
1527                         } else {
1528                                 string docdir =
1529                                         support::latex_path(original_path);
1530                                 if (contains(docdir, '#')) {
1531                                         docdir = subst(docdir, "#", "\\#");
1532                                         os << "\\catcode`\\#=11"
1533                                               "\\def\\#{#}\\catcode`\\#=6\n";
1534                                 }
1535                                 if (contains(docdir, '%')) {
1536                                         docdir = subst(docdir, "%", "\\%");
1537                                         os << "\\catcode`\\%=11"
1538                                               "\\def\\%{%}\\catcode`\\%=14\n";
1539                                 }
1540                                 os << "\\makeatletter\n"
1541                                    << "\\def\\input@path{{"
1542                                    << docdir << "/}}\n"
1543                                    << "\\makeatother\n";
1544                         }
1545                 }
1546
1547                 // get parent macros (if this buffer has a parent) which will be
1548                 // written at the document begin further down.
1549                 MacroSet parentMacros;
1550                 listParentMacros(parentMacros, features);
1551
1552                 runparams.use_polyglossia = features.usePolyglossia();
1553                 // Write the preamble
1554                 runparams.use_babel = params().writeLaTeX(os, features,
1555                                                           d->filename.onlyPath());
1556
1557                 runparams.use_japanese = features.isRequired("japanese");
1558
1559                 if (!output_body)
1560                         return;
1561
1562                 // make the body.
1563                 os << "\\begin{document}\n";
1564
1565                 // output the parent macros
1566                 MacroSet::iterator it = parentMacros.begin();
1567                 MacroSet::iterator end = parentMacros.end();
1568                 for (; it != end; ++it) {
1569                         int num_lines = (*it)->write(os.os(), true);
1570                         os.texrow().newlines(num_lines);
1571                 }
1572
1573         } // output_preamble
1574
1575         os.texrow().start(paragraphs().begin()->id(), 0);
1576
1577         LYXERR(Debug::INFO, "preamble finished, now the body.");
1578
1579         // if we are doing a real file with body, even if this is the
1580         // child of some other buffer, let's cut the link here.
1581         // This happens for example if only a child document is printed.
1582         Buffer const * save_parent = 0;
1583         if (output_preamble) {
1584                 save_parent = d->parent();
1585                 d->setParent(0);
1586         }
1587
1588         // the real stuff
1589         latexParagraphs(*this, text(), os, runparams);
1590
1591         // Restore the parenthood if needed
1592         if (output_preamble)
1593                 d->setParent(save_parent);
1594
1595         // add this just in case after all the paragraphs
1596         os << endl;
1597
1598         if (output_preamble) {
1599                 os << "\\end{document}\n";
1600                 LYXERR(Debug::LATEX, "makeLaTeXFile...done");
1601         } else {
1602                 LYXERR(Debug::LATEX, "LaTeXFile for inclusion made.");
1603         }
1604         runparams_in.encoding = runparams.encoding;
1605
1606         // Just to be sure. (Asger)
1607         os.texrow().newline();
1608
1609         //for (int i = 0; i<d->texrow.rows(); i++) {
1610         // int id,pos;
1611         // if (d->texrow.getIdFromRow(i+1,id,pos) && id>0)
1612         //      lyxerr << i+1 << ":" << id << ":" << getParFromID(id).paragraph().asString()<<"\n";
1613         //}
1614
1615         LYXERR(Debug::INFO, "Finished making LaTeX file.");
1616         LYXERR(Debug::INFO, "Row count was " << os.texrow().rows() - 1 << '.');
1617 }
1618
1619
1620 void Buffer::makeDocBookFile(FileName const & fname,
1621                               OutputParams const & runparams,
1622                               OutputWhat output) const
1623 {
1624         LYXERR(Debug::LATEX, "makeDocBookFile...");
1625
1626         ofdocstream ofs;
1627         if (!openFileWrite(ofs, fname))
1628                 return;
1629
1630         // make sure we are ready to export
1631         // this needs to be done before we validate
1632         updateBuffer();
1633         updateMacroInstances(OutputUpdate);
1634
1635         writeDocBookSource(ofs, fname.absFileName(), runparams, output);
1636
1637         ofs.close();
1638         if (ofs.fail())
1639                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1640 }
1641
1642
1643 void Buffer::writeDocBookSource(odocstream & os, string const & fname,
1644                              OutputParams const & runparams,
1645                              OutputWhat output) const
1646 {
1647         LaTeXFeatures features(*this, params(), runparams);
1648         validate(features);
1649
1650         d->texrow.reset();
1651
1652         DocumentClass const & tclass = params().documentClass();
1653         string const top_element = tclass.latexname();
1654
1655         bool const output_preamble =
1656                 output == FullSource || output == OnlyPreamble;
1657         bool const output_body =
1658           output == FullSource || output == OnlyBody;
1659
1660         if (output_preamble) {
1661                 if (runparams.flavor == OutputParams::XML)
1662                         os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
1663
1664                 // FIXME UNICODE
1665                 os << "<!DOCTYPE " << from_ascii(top_element) << ' ';
1666
1667                 // FIXME UNICODE
1668                 if (! tclass.class_header().empty())
1669                         os << from_ascii(tclass.class_header());
1670                 else if (runparams.flavor == OutputParams::XML)
1671                         os << "PUBLIC \"-//OASIS//DTD DocBook XML//EN\" "
1672                             << "\"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd\"";
1673                 else
1674                         os << " PUBLIC \"-//OASIS//DTD DocBook V4.2//EN\"";
1675
1676                 docstring preamble = from_utf8(params().preamble);
1677                 if (runparams.flavor != OutputParams::XML ) {
1678                         preamble += "<!ENTITY % output.print.png \"IGNORE\">\n";
1679                         preamble += "<!ENTITY % output.print.pdf \"IGNORE\">\n";
1680                         preamble += "<!ENTITY % output.print.eps \"IGNORE\">\n";
1681                         preamble += "<!ENTITY % output.print.bmp \"IGNORE\">\n";
1682                 }
1683
1684                 string const name = runparams.nice
1685                         ? changeExtension(absFileName(), ".sgml") : fname;
1686                 preamble += features.getIncludedFiles(name);
1687                 preamble += features.getLyXSGMLEntities();
1688
1689                 if (!preamble.empty()) {
1690                         os << "\n [ " << preamble << " ]";
1691                 }
1692                 os << ">\n\n";
1693         }
1694
1695         if (output_body) {
1696                 string top = top_element;
1697                 top += " lang=\"";
1698                 if (runparams.flavor == OutputParams::XML)
1699                         top += params().language->code();
1700                 else
1701                         top += params().language->code().substr(0, 2);
1702                 top += '"';
1703
1704                 if (!params().options.empty()) {
1705                         top += ' ';
1706                         top += params().options;
1707                 }
1708
1709                 os << "<!-- " << ((runparams.flavor == OutputParams::XML)? "XML" : "SGML")
1710                                 << " file was created by LyX " << lyx_version
1711                                 << "\n  See http://www.lyx.org/ for more information -->\n";
1712
1713                 params().documentClass().counters().reset();
1714
1715                 sgml::openTag(os, top);
1716                 os << '\n';
1717                 docbookParagraphs(text(), *this, os, runparams);
1718                 sgml::closeTag(os, top_element);
1719         }
1720 }
1721
1722
1723 void Buffer::makeLyXHTMLFile(FileName const & fname,
1724                               OutputParams const & runparams) const
1725 {
1726         LYXERR(Debug::LATEX, "makeLyXHTMLFile...");
1727
1728         ofdocstream ofs;
1729         if (!openFileWrite(ofs, fname))
1730                 return;
1731
1732         // make sure we are ready to export
1733         // this has to be done before we validate
1734         updateBuffer(UpdateMaster, OutputUpdate);
1735         updateMacroInstances(OutputUpdate);
1736
1737         writeLyXHTMLSource(ofs, runparams, FullSource);
1738
1739         ofs.close();
1740         if (ofs.fail())
1741                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1742 }
1743
1744
1745 void Buffer::writeLyXHTMLSource(odocstream & os,
1746                              OutputParams const & runparams,
1747                              OutputWhat output) const
1748 {
1749         LaTeXFeatures features(*this, params(), runparams);
1750         validate(features);
1751         d->bibinfo_.makeCitationLabels(*this);
1752
1753         bool const output_preamble =
1754                 output == FullSource || output == OnlyPreamble;
1755         bool const output_body =
1756           output == FullSource || output == OnlyBody;
1757
1758         if (output_preamble) {
1759                 os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
1760                    << "<!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"
1761                    // FIXME Language should be set properly.
1762                    << "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n"
1763                    << "<head>\n"
1764                    << "<meta name=\"GENERATOR\" content=\"" << PACKAGE_STRING << "\" />\n"
1765                    // FIXME Presumably need to set this right
1766                    << "<meta http-equiv=\"Content-type\" content=\"text/html;charset=UTF-8\" />\n";
1767
1768                 docstring const & doctitle = features.htmlTitle();
1769                 os << "<title>"
1770                    << (doctitle.empty() ?
1771                          from_ascii("LyX Document") :
1772                          html::htmlize(doctitle, XHTMLStream::ESCAPE_ALL))
1773                    << "</title>\n";
1774
1775                 os << "\n<!-- Text Class Preamble -->\n"
1776                    << features.getTClassHTMLPreamble()
1777                    << "\n<!-- Preamble Snippets -->\n"
1778                    << from_utf8(features.getPreambleSnippets())
1779                    << "\n<!-- LyX Provided Styles -->\n"
1780                    << "<style type='text/css'>\n"
1781                    << from_utf8(features.getCSSSnippets())
1782                    << "</style>\n";
1783
1784                 os << "\n<!-- Layout-provided Styles -->\n";
1785                 docstring const styleinfo = features.getTClassHTMLStyles();
1786                 if (!styleinfo.empty()) {
1787                         os << "<style type='text/css'>\n"
1788                                 << styleinfo
1789                                 << "</style>\n";
1790                 }
1791
1792                 bool const needfg = params().fontcolor != RGBColor(0, 0, 0);
1793                 bool const needbg = params().backgroundcolor != RGBColor(0xFF, 0xFF, 0xFF);
1794                 if (needfg || needbg) {
1795                                 os << "<style type='text/css'>\nbody {\n";
1796                                 if (needfg)
1797                                    os << "  color: "
1798                                             << from_ascii(X11hexname(params().fontcolor))
1799                                             << ";\n";
1800                                 if (needbg)
1801                                    os << "  background-color: "
1802                                             << from_ascii(X11hexname(params().backgroundcolor))
1803                                             << ";\n";
1804                                 os << "}\n</style>\n";
1805                 }
1806                 os << "</head>\n";
1807         }
1808
1809         if (output_body) {
1810                 os << "<body>\n";
1811                 XHTMLStream xs(os);
1812                 params().documentClass().counters().reset();
1813                 xhtmlParagraphs(text(), *this, xs, runparams);
1814                 os << "</body>\n";
1815         }
1816
1817         if (output_preamble)
1818                 os << "</html>\n";
1819 }
1820
1821
1822 // chktex should be run with these flags disabled: 3, 22, 25, 30, 38(?)
1823 // Other flags: -wall -v0 -x
1824 int Buffer::runChktex()
1825 {
1826         setBusy(true);
1827
1828         // get LaTeX-Filename
1829         FileName const path(temppath());
1830         string const name = addName(path.absFileName(), latexName());
1831         string const org_path = filePath();
1832
1833         PathChanger p(path); // path to LaTeX file
1834         message(_("Running chktex..."));
1835
1836         // Generate the LaTeX file if neccessary
1837         OutputParams runparams(&params().encoding());
1838         runparams.flavor = OutputParams::LATEX;
1839         runparams.nice = false;
1840         runparams.linelen = lyxrc.plaintext_linelen;
1841         makeLaTeXFile(FileName(name), org_path, runparams);
1842
1843         TeXErrors terr;
1844         Chktex chktex(lyxrc.chktex_command, onlyFileName(name), filePath());
1845         int const res = chktex.run(terr); // run chktex
1846
1847         if (res == -1) {
1848                 Alert::error(_("chktex failure"),
1849                              _("Could not run chktex successfully."));
1850         } else if (res > 0) {
1851                 ErrorList & errlist = d->errorLists["ChkTeX"];
1852                 errlist.clear();
1853                 bufferErrors(terr, errlist);
1854         }
1855
1856         setBusy(false);
1857
1858         errors("ChkTeX");
1859
1860         return res;
1861 }
1862
1863
1864 void Buffer::validate(LaTeXFeatures & features) const
1865 {
1866         params().validate(features);
1867
1868         for_each(paragraphs().begin(), paragraphs().end(),
1869                  bind(&Paragraph::validate, _1, ref(features)));
1870
1871         if (lyxerr.debugging(Debug::LATEX)) {
1872                 features.showStruct();
1873         }
1874 }
1875
1876
1877 void Buffer::getLabelList(vector<docstring> & list) const
1878 {
1879         // If this is a child document, use the master's list instead.
1880         if (parent()) {
1881                 masterBuffer()->getLabelList(list);
1882                 return;
1883         }
1884
1885         list.clear();
1886         Toc & toc = d->toc_backend.toc("label");
1887         TocIterator toc_it = toc.begin();
1888         TocIterator end = toc.end();
1889         for (; toc_it != end; ++toc_it) {
1890                 if (toc_it->depth() == 0)
1891                         list.push_back(toc_it->str());
1892         }
1893 }
1894
1895
1896 void Buffer::updateBibfilesCache(UpdateScope scope) const
1897 {
1898         // FIXME This is probably unnecssary, given where we call this.
1899         // If this is a child document, use the parent's cache instead.
1900         if (parent() && scope != UpdateChildOnly) {
1901                 masterBuffer()->updateBibfilesCache();
1902                 return;
1903         }
1904
1905         d->bibfiles_cache_.clear();
1906         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
1907                 if (it->lyxCode() == BIBTEX_CODE) {
1908                         InsetBibtex const & inset = static_cast<InsetBibtex const &>(*it);
1909                         support::FileNameList const bibfiles = inset.getBibFiles();
1910                         d->bibfiles_cache_.insert(d->bibfiles_cache_.end(),
1911                                 bibfiles.begin(),
1912                                 bibfiles.end());
1913                 } else if (it->lyxCode() == INCLUDE_CODE) {
1914                         InsetInclude & inset = static_cast<InsetInclude &>(*it);
1915                         Buffer const * const incbuf = inset.getChildBuffer();
1916                         if (!incbuf)
1917                                 continue;
1918                         support::FileNameList const & bibfiles =
1919                                         incbuf->getBibfilesCache(UpdateChildOnly);
1920                         if (!bibfiles.empty()) {
1921                                 d->bibfiles_cache_.insert(d->bibfiles_cache_.end(),
1922                                         bibfiles.begin(),
1923                                         bibfiles.end());
1924                         }
1925                 }
1926         }
1927         d->bibfile_cache_valid_ = true;
1928         d->bibinfo_cache_valid_ = false;
1929         d->cite_labels_valid_ = false;
1930 }
1931
1932
1933 void Buffer::invalidateBibinfoCache() const
1934 {
1935         d->bibinfo_cache_valid_ = false;
1936         d->cite_labels_valid_ = false;
1937         // also invalidate the cache for the parent buffer
1938         Buffer const * const pbuf = d->parent();
1939         if (pbuf)
1940                 pbuf->invalidateBibinfoCache();
1941 }
1942
1943
1944 void Buffer::invalidateBibfileCache() const
1945 {
1946         d->bibfile_cache_valid_ = false;
1947         d->bibinfo_cache_valid_ = false;
1948         d->cite_labels_valid_ = false;
1949         // also invalidate the cache for the parent buffer
1950         Buffer const * const pbuf = d->parent();
1951         if (pbuf)
1952                 pbuf->invalidateBibfileCache();
1953 }
1954
1955
1956 support::FileNameList const & Buffer::getBibfilesCache(UpdateScope scope) const
1957 {
1958         // FIXME This is probably unnecessary, given where we call this.
1959         // If this is a child document, use the master's cache instead.
1960         Buffer const * const pbuf = masterBuffer();
1961         if (pbuf != this && scope != UpdateChildOnly)
1962                 return pbuf->getBibfilesCache();
1963
1964         if (!d->bibfile_cache_valid_)
1965                 this->updateBibfilesCache(scope);
1966
1967         return d->bibfiles_cache_;
1968 }
1969
1970
1971 BiblioInfo const & Buffer::masterBibInfo() const
1972 {
1973         Buffer const * const tmp = masterBuffer();
1974         if (tmp != this)
1975                 return tmp->masterBibInfo();
1976         return d->bibinfo_;
1977 }
1978
1979
1980 void Buffer::checkIfBibInfoCacheIsValid() const
1981 {
1982         // use the master's cache
1983         Buffer const * const tmp = masterBuffer();
1984         if (tmp != this) {
1985                 tmp->checkIfBibInfoCacheIsValid();
1986                 return;
1987         }
1988
1989         // compare the cached timestamps with the actual ones.
1990         FileNameList const & bibfiles_cache = getBibfilesCache();
1991         FileNameList::const_iterator ei = bibfiles_cache.begin();
1992         FileNameList::const_iterator en = bibfiles_cache.end();
1993         for (; ei != en; ++ ei) {
1994                 time_t lastw = ei->lastModified();
1995                 time_t prevw = d->bibfile_status_[*ei];
1996                 if (lastw != prevw) {
1997                         d->bibinfo_cache_valid_ = false;
1998                         d->cite_labels_valid_ = false;
1999                         d->bibfile_status_[*ei] = lastw;
2000                 }
2001         }
2002 }
2003
2004
2005 void Buffer::reloadBibInfoCache() const
2006 {
2007         // use the master's cache
2008         Buffer const * const tmp = masterBuffer();
2009         if (tmp != this) {
2010                 tmp->reloadBibInfoCache();
2011                 return;
2012         }
2013
2014         checkIfBibInfoCacheIsValid();
2015         if (d->bibinfo_cache_valid_)
2016                 return;
2017
2018         d->bibinfo_.clear();
2019         collectBibKeys();
2020         d->bibinfo_cache_valid_ = true;
2021 }
2022
2023
2024 void Buffer::collectBibKeys() const
2025 {
2026         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it)
2027                 it->collectBibKeys(it);
2028 }
2029
2030
2031 void Buffer::addBiblioInfo(BiblioInfo const & bi) const
2032 {
2033         Buffer const * tmp = masterBuffer();
2034         BiblioInfo & masterbi = (tmp == this) ?
2035                 d->bibinfo_ : tmp->d->bibinfo_;
2036         masterbi.mergeBiblioInfo(bi);
2037 }
2038
2039
2040 void Buffer::addBibTeXInfo(docstring const & key, BibTeXInfo const & bi) const
2041 {
2042         Buffer const * tmp = masterBuffer();
2043         BiblioInfo & masterbi = (tmp == this) ?
2044                 d->bibinfo_ : tmp->d->bibinfo_;
2045         masterbi[key] = bi;
2046 }
2047
2048
2049 bool Buffer::citeLabelsValid() const
2050 {
2051         return masterBuffer()->d->cite_labels_valid_;
2052 }
2053
2054
2055 void Buffer::removeBiblioTempFiles() const
2056 {
2057         // We remove files that contain LaTeX commands specific to the
2058         // particular bibliographic style being used, in order to avoid
2059         // LaTeX errors when we switch style.
2060         FileName const aux_file(addName(temppath(), changeExtension(latexName(),".aux")));
2061         FileName const bbl_file(addName(temppath(), changeExtension(latexName(),".bbl")));
2062         LYXERR(Debug::FILES, "Removing the .aux file " << aux_file);
2063         aux_file.removeFile();
2064         LYXERR(Debug::FILES, "Removing the .bbl file " << bbl_file);
2065         bbl_file.removeFile();
2066         // Also for the parent buffer
2067         Buffer const * const pbuf = parent();
2068         if (pbuf)
2069                 pbuf->removeBiblioTempFiles();
2070 }
2071
2072
2073 bool Buffer::isDepClean(string const & name) const
2074 {
2075         DepClean::const_iterator const it = d->dep_clean.find(name);
2076         if (it == d->dep_clean.end())
2077                 return true;
2078         return it->second;
2079 }
2080
2081
2082 void Buffer::markDepClean(string const & name)
2083 {
2084         d->dep_clean[name] = true;
2085 }
2086
2087
2088 bool Buffer::getStatus(FuncRequest const & cmd, FuncStatus & flag)
2089 {
2090         if (isInternal()) {
2091                 // FIXME? if there is an Buffer LFUN that can be dispatched even
2092                 // if internal, put a switch '(cmd.action)' here.
2093                 return false;
2094         }
2095
2096         bool enable = true;
2097
2098         switch (cmd.action()) {
2099
2100                 case LFUN_BUFFER_TOGGLE_READ_ONLY:
2101                         flag.setOnOff(isReadonly());
2102                         break;
2103
2104                 // FIXME: There is need for a command-line import.
2105                 //case LFUN_BUFFER_IMPORT:
2106
2107                 case LFUN_BUFFER_AUTO_SAVE:
2108                         break;
2109
2110                 case LFUN_BUFFER_EXPORT_CUSTOM:
2111                         // FIXME: Nothing to check here?
2112                         break;
2113
2114                 case LFUN_BUFFER_EXPORT: {
2115                         docstring const arg = cmd.argument();
2116                         if (arg == "custom") {
2117                                 enable = true;
2118                                 break;
2119                         }
2120                         string format = to_utf8(arg);
2121                         size_t pos = format.find(' ');
2122                         if (pos != string::npos)
2123                                 format = format.substr(0, pos);
2124                         enable = params().isExportable(format);
2125                         if (!enable)
2126                                 flag.message(bformat(
2127                                         _("Don't know how to export to format: %1$s"), arg));
2128                         break;
2129                 }
2130
2131                 case LFUN_BUFFER_CHKTEX:
2132                         enable = params().isLatex() && !lyxrc.chktex_command.empty();
2133                         break;
2134
2135                 case LFUN_BUILD_PROGRAM:
2136                         enable = params().isExportable("program");
2137                         break;
2138
2139                 case LFUN_BRANCH_ADD:
2140                 case LFUN_BRANCHES_RENAME:
2141                 case LFUN_BUFFER_PRINT:
2142                         // if no Buffer is present, then of course we won't be called!
2143                         break;
2144
2145                 case LFUN_BUFFER_LANGUAGE:
2146                         enable = !isReadonly();
2147                         break;
2148
2149                 default:
2150                         return false;
2151         }
2152         flag.setEnabled(enable);
2153         return true;
2154 }
2155
2156
2157 void Buffer::dispatch(string const & command, DispatchResult & result)
2158 {
2159         return dispatch(lyxaction.lookupFunc(command), result);
2160 }
2161
2162
2163 // NOTE We can end up here even if we have no GUI, because we are called
2164 // by LyX::exec to handled command-line requests. So we may need to check
2165 // whether we have a GUI or not. The boolean use_gui holds this information.
2166 void Buffer::dispatch(FuncRequest const & func, DispatchResult & dr)
2167 {
2168         if (isInternal()) {
2169                 // FIXME? if there is an Buffer LFUN that can be dispatched even
2170                 // if internal, put a switch '(cmd.action())' here.
2171                 dr.dispatched(false);
2172                 return;
2173         }
2174         string const argument = to_utf8(func.argument());
2175         // We'll set this back to false if need be.
2176         bool dispatched = true;
2177         undo().beginUndoGroup();
2178
2179         switch (func.action()) {
2180         case LFUN_BUFFER_TOGGLE_READ_ONLY:
2181                 if (lyxvc().inUse())
2182                         lyxvc().toggleReadOnly();
2183                 else
2184                         setReadonly(!isReadonly());
2185                 break;
2186
2187         case LFUN_BUFFER_EXPORT: {
2188                 ExportStatus const status = doExport(argument, false);
2189                 dr.setError(status != ExportSuccess);
2190                 if (status != ExportSuccess)
2191                         dr.setMessage(bformat(_("Error exporting to format: %1$s."),
2192                                               func.argument()));
2193                 break;
2194         }
2195
2196         case LFUN_BUILD_PROGRAM:
2197                 doExport("program", true);
2198                 break;
2199
2200         case LFUN_BUFFER_CHKTEX:
2201                 runChktex();
2202                 break;
2203
2204         case LFUN_BUFFER_EXPORT_CUSTOM: {
2205                 string format_name;
2206                 string command = split(argument, format_name, ' ');
2207                 Format const * format = formats.getFormat(format_name);
2208                 if (!format) {
2209                         lyxerr << "Format \"" << format_name
2210                                 << "\" not recognized!"
2211                                 << endl;
2212                         break;
2213                 }
2214
2215                 // The name of the file created by the conversion process
2216                 string filename;
2217
2218                 // Output to filename
2219                 if (format->name() == "lyx") {
2220                         string const latexname = latexName(false);
2221                         filename = changeExtension(latexname,
2222                                 format->extension());
2223                         filename = addName(temppath(), filename);
2224
2225                         if (!writeFile(FileName(filename)))
2226                                 break;
2227
2228                 } else {
2229                         doExport(format_name, true, filename);
2230                 }
2231
2232                 // Substitute $$FName for filename
2233                 if (!contains(command, "$$FName"))
2234                         command = "( " + command + " ) < $$FName";
2235                 command = subst(command, "$$FName", filename);
2236
2237                 // Execute the command in the background
2238                 Systemcall call;
2239                 call.startscript(Systemcall::DontWait, command, filePath());
2240                 break;
2241         }
2242
2243         // FIXME: There is need for a command-line import.
2244         /*
2245         case LFUN_BUFFER_IMPORT:
2246                 doImport(argument);
2247                 break;
2248         */
2249
2250         case LFUN_BUFFER_AUTO_SAVE:
2251                 autoSave();
2252                 resetAutosaveTimers();
2253                 break;
2254
2255         case LFUN_BRANCH_ADD: {
2256                 docstring branch_name = func.argument();
2257                 if (branch_name.empty()) {
2258                         dispatched = false;
2259                         break;
2260                 }
2261                 BranchList & branch_list = params().branchlist();
2262                 vector<docstring> const branches =
2263                         getVectorFromString(branch_name, branch_list.separator());
2264                 docstring msg;
2265                 for (vector<docstring>::const_iterator it = branches.begin();
2266                      it != branches.end(); ++it) {
2267                         branch_name = *it;
2268                         Branch * branch = branch_list.find(branch_name);
2269                         if (branch) {
2270                                 LYXERR0("Branch " << branch_name << " already exists.");
2271                                 dr.setError(true);
2272                                 if (!msg.empty())
2273                                         msg += ("\n");
2274                                 msg += bformat(_("Branch \"%1$s\" already exists."), branch_name);
2275                         } else {
2276                                 branch_list.add(branch_name);
2277                                 branch = branch_list.find(branch_name);
2278                                 string const x11hexname = X11hexname(branch->color());
2279                                 docstring const str = branch_name + ' ' + from_ascii(x11hexname);
2280                                 lyx::dispatch(FuncRequest(LFUN_SET_COLOR, str));
2281                                 dr.setError(false);
2282                                 dr.screenUpdate(Update::Force);
2283                         }
2284                 }
2285                 if (!msg.empty())
2286                         dr.setMessage(msg);
2287                 break;
2288         }
2289
2290         case LFUN_BRANCHES_RENAME: {
2291                 if (func.argument().empty())
2292                         break;
2293
2294                 docstring const oldname = from_utf8(func.getArg(0));
2295                 docstring const newname = from_utf8(func.getArg(1));
2296                 InsetIterator it  = inset_iterator_begin(inset());
2297                 InsetIterator const end = inset_iterator_end(inset());
2298                 bool success = false;
2299                 for (; it != end; ++it) {
2300                         if (it->lyxCode() == BRANCH_CODE) {
2301                                 InsetBranch & ins = static_cast<InsetBranch &>(*it);
2302                                 if (ins.branch() == oldname) {
2303                                         undo().recordUndo(it);
2304                                         ins.rename(newname);
2305                                         success = true;
2306                                         continue;
2307                                 }
2308                         }
2309                         if (it->lyxCode() == INCLUDE_CODE) {
2310                                 // get buffer of external file
2311                                 InsetInclude const & ins =
2312                                         static_cast<InsetInclude const &>(*it);
2313                                 Buffer * child = ins.getChildBuffer();
2314                                 if (!child)
2315                                         continue;
2316                                 child->dispatch(func, dr);
2317                         }
2318                 }
2319
2320                 if (success) {
2321                         dr.screenUpdate(Update::Force);
2322                         dr.forceBufferUpdate();
2323                 }
2324                 break;
2325         }
2326
2327         case LFUN_BUFFER_PRINT: {
2328                 // we'll assume there's a problem until we succeed
2329                 dr.setError(true);
2330                 string target = func.getArg(0);
2331                 string target_name = func.getArg(1);
2332                 string command = func.getArg(2);
2333
2334                 if (target.empty()
2335                     || target_name.empty()
2336                     || command.empty()) {
2337                         LYXERR0("Unable to parse " << func.argument());
2338                         docstring const msg =
2339                                 bformat(_("Unable to parse \"%1$s\""), func.argument());
2340                         dr.setMessage(msg);
2341                         break;
2342                 }
2343                 if (target != "printer" && target != "file") {
2344                         LYXERR0("Unrecognized target \"" << target << '"');
2345                         docstring const msg =
2346                                 bformat(_("Unrecognized target \"%1$s\""), from_utf8(target));
2347                         dr.setMessage(msg);
2348                         break;
2349                 }
2350
2351                 if (!doExport("dvi", true)) {
2352                         showPrintError(absFileName());
2353                         dr.setMessage(_("Error exporting to DVI."));
2354                         break;
2355                 }
2356
2357                 // Push directory path.
2358                 string const path = temppath();
2359                 // Prevent the compiler from optimizing away p
2360                 FileName pp(path);
2361                 PathChanger p(pp);
2362
2363                 // there are three cases here:
2364                 // 1. we print to a file
2365                 // 2. we print directly to a printer
2366                 // 3. we print using a spool command (print to file first)
2367                 Systemcall one;
2368                 int res = 0;
2369                 string const dviname = changeExtension(latexName(true), "dvi");
2370
2371                 if (target == "printer") {
2372                         if (!lyxrc.print_spool_command.empty()) {
2373                                 // case 3: print using a spool
2374                                 string const psname = changeExtension(dviname,".ps");
2375                                 command += ' ' + lyxrc.print_to_file
2376                                         + quoteName(psname)
2377                                         + ' '
2378                                         + quoteName(dviname);
2379
2380                                 string command2 = lyxrc.print_spool_command + ' ';
2381                                 if (target_name != "default") {
2382                                         command2 += lyxrc.print_spool_printerprefix
2383                                                 + target_name
2384                                                 + ' ';
2385                                 }
2386                                 command2 += quoteName(psname);
2387                                 // First run dvips.
2388                                 // If successful, then spool command
2389                                 res = one.startscript(Systemcall::Wait, command,
2390                                                       filePath());
2391
2392                                 if (res == 0) {
2393                                         // If there's no GUI, we have to wait on this command. Otherwise,
2394                                         // LyX deletes the temporary directory, and with it the spooled
2395                                         // file, before it can be printed!!
2396                                         Systemcall::Starttype stype = use_gui ?
2397                                                 Systemcall::DontWait : Systemcall::Wait;
2398                                         res = one.startscript(stype, command2,
2399                                                               filePath());
2400                                 }
2401                         } else {
2402                                 // case 2: print directly to a printer
2403                                 if (target_name != "default")
2404                                         command += ' ' + lyxrc.print_to_printer + target_name + ' ';
2405                                 // as above....
2406                                 Systemcall::Starttype stype = use_gui ?
2407                                         Systemcall::DontWait : Systemcall::Wait;
2408                                 res = one.startscript(stype, command +
2409                                                 quoteName(dviname), filePath());
2410                         }
2411
2412                 } else {
2413                         // case 1: print to a file
2414                         FileName const filename(makeAbsPath(target_name, filePath()));
2415                         FileName const dvifile(makeAbsPath(dviname, path));
2416                         if (filename.exists()) {
2417                                 docstring text = bformat(
2418                                         _("The file %1$s already exists.\n\n"
2419                                           "Do you want to overwrite that file?"),
2420                                         makeDisplayPath(filename.absFileName()));
2421                                 if (Alert::prompt(_("Overwrite file?"),
2422                                                   text, 0, 1, _("&Overwrite"), _("&Cancel")) != 0)
2423                                         break;
2424                         }
2425                         command += ' ' + lyxrc.print_to_file
2426                                 + quoteName(filename.toFilesystemEncoding())
2427                                 + ' '
2428                                 + quoteName(dvifile.toFilesystemEncoding());
2429                         // as above....
2430                         Systemcall::Starttype stype = use_gui ?
2431                                 Systemcall::DontWait : Systemcall::Wait;
2432                         res = one.startscript(stype, command, filePath());
2433                 }
2434
2435                 if (res == 0)
2436                         dr.setError(false);
2437                 else {
2438                         dr.setMessage(_("Error running external commands."));
2439                         showPrintError(absFileName());
2440                 }
2441                 break;
2442         }
2443
2444         default:
2445                 dispatched = false;
2446                 break;
2447         }
2448         dr.dispatched(dispatched);
2449         undo().endUndoGroup();
2450 }
2451
2452
2453 void Buffer::changeLanguage(Language const * from, Language const * to)
2454 {
2455         LASSERT(from, /**/);
2456         LASSERT(to, /**/);
2457
2458         for_each(par_iterator_begin(),
2459                  par_iterator_end(),
2460                  bind(&Paragraph::changeLanguage, _1, params(), from, to));
2461 }
2462
2463
2464 bool Buffer::isMultiLingual() const
2465 {
2466         ParConstIterator end = par_iterator_end();
2467         for (ParConstIterator it = par_iterator_begin(); it != end; ++it)
2468                 if (it->isMultiLingual(params()))
2469                         return true;
2470
2471         return false;
2472 }
2473
2474
2475 std::set<Language const *> Buffer::getLanguages() const
2476 {
2477         std::set<Language const *> languages;
2478         getLanguages(languages);
2479         return languages;
2480 }
2481
2482
2483 void Buffer::getLanguages(std::set<Language const *> & languages) const
2484 {
2485         ParConstIterator end = par_iterator_end();
2486         // add the buffer language, even if it's not actively used
2487         languages.insert(language());
2488         // iterate over the paragraphs
2489         for (ParConstIterator it = par_iterator_begin(); it != end; ++it)
2490                 it->getLanguages(languages);
2491         // also children
2492         ListOfBuffers clist = getDescendents();
2493         ListOfBuffers::const_iterator cit = clist.begin();
2494         ListOfBuffers::const_iterator const cen = clist.end();
2495         for (; cit != cen; ++cit)
2496                 (*cit)->getLanguages(languages);
2497 }
2498
2499
2500 DocIterator Buffer::getParFromID(int const id) const
2501 {
2502         Buffer * buf = const_cast<Buffer *>(this);
2503         if (id < 0) {
2504                 // John says this is called with id == -1 from undo
2505                 lyxerr << "getParFromID(), id: " << id << endl;
2506                 return doc_iterator_end(buf);
2507         }
2508
2509         for (DocIterator it = doc_iterator_begin(buf); !it.atEnd(); it.forwardPar())
2510                 if (it.paragraph().id() == id)
2511                         return it;
2512
2513         return doc_iterator_end(buf);
2514 }
2515
2516
2517 bool Buffer::hasParWithID(int const id) const
2518 {
2519         return !getParFromID(id).atEnd();
2520 }
2521
2522
2523 ParIterator Buffer::par_iterator_begin()
2524 {
2525         return ParIterator(doc_iterator_begin(this));
2526 }
2527
2528
2529 ParIterator Buffer::par_iterator_end()
2530 {
2531         return ParIterator(doc_iterator_end(this));
2532 }
2533
2534
2535 ParConstIterator Buffer::par_iterator_begin() const
2536 {
2537         return ParConstIterator(doc_iterator_begin(this));
2538 }
2539
2540
2541 ParConstIterator Buffer::par_iterator_end() const
2542 {
2543         return ParConstIterator(doc_iterator_end(this));
2544 }
2545
2546
2547 Language const * Buffer::language() const
2548 {
2549         return params().language;
2550 }
2551
2552
2553 docstring const Buffer::B_(string const & l10n) const
2554 {
2555         return params().B_(l10n);
2556 }
2557
2558
2559 bool Buffer::isClean() const
2560 {
2561         return d->lyx_clean;
2562 }
2563
2564
2565 bool Buffer::isExternallyModified(CheckMethod method) const
2566 {
2567         LASSERT(d->filename.exists(), /**/);
2568         // if method == timestamp, check timestamp before checksum
2569         return (method == checksum_method
2570                 || d->timestamp_ != d->filename.lastModified())
2571                 && d->checksum_ != d->filename.checksum();
2572 }
2573
2574
2575 void Buffer::saveCheckSum() const
2576 {
2577         FileName const & file = d->filename;
2578
2579         file.refresh();
2580         if (file.exists()) {
2581                 d->timestamp_ = file.lastModified();
2582                 d->checksum_ = file.checksum();
2583         } else {
2584                 // in the case of save to a new file.
2585                 d->timestamp_ = 0;
2586                 d->checksum_ = 0;
2587         }
2588 }
2589
2590
2591 void Buffer::markClean() const
2592 {
2593         if (!d->lyx_clean) {
2594                 d->lyx_clean = true;
2595                 updateTitles();
2596         }
2597         // if the .lyx file has been saved, we don't need an
2598         // autosave
2599         d->bak_clean = true;
2600         d->undo_.markDirty();
2601 }
2602
2603
2604 void Buffer::setUnnamed(bool flag)
2605 {
2606         d->unnamed = flag;
2607 }
2608
2609
2610 bool Buffer::isUnnamed() const
2611 {
2612         return d->unnamed;
2613 }
2614
2615
2616 /// \note
2617 /// Don't check unnamed, here: isInternal() is used in
2618 /// newBuffer(), where the unnamed flag has not been set by anyone
2619 /// yet. Also, for an internal buffer, there should be no need for
2620 /// retrieving fileName() nor for checking if it is unnamed or not.
2621 bool Buffer::isInternal() const
2622 {
2623         return fileName().extension() == "internal";
2624 }
2625
2626
2627 void Buffer::markDirty()
2628 {
2629         if (d->lyx_clean) {
2630                 d->lyx_clean = false;
2631                 updateTitles();
2632         }
2633         d->bak_clean = false;
2634
2635         DepClean::iterator it = d->dep_clean.begin();
2636         DepClean::const_iterator const end = d->dep_clean.end();
2637
2638         for (; it != end; ++it)
2639                 it->second = false;
2640 }
2641
2642
2643 FileName Buffer::fileName() const
2644 {
2645         return d->filename;
2646 }
2647
2648
2649 string Buffer::absFileName() const
2650 {
2651         return d->filename.absFileName();
2652 }
2653
2654
2655 string Buffer::filePath() const
2656 {
2657         return d->filename.onlyPath().absFileName() + "/";
2658 }
2659
2660
2661 bool Buffer::isReadonly() const
2662 {
2663         return d->read_only;
2664 }
2665
2666
2667 void Buffer::setParent(Buffer const * buffer)
2668 {
2669         // Avoids recursive include.
2670         d->setParent(buffer == this ? 0 : buffer);
2671         updateMacros();
2672 }
2673
2674
2675 Buffer const * Buffer::parent() const
2676 {
2677         return d->parent();
2678 }
2679
2680
2681 ListOfBuffers Buffer::allRelatives() const
2682 {
2683         ListOfBuffers lb = masterBuffer()->getDescendents();
2684         lb.push_front(const_cast<Buffer *>(masterBuffer()));
2685         return lb;
2686 }
2687
2688
2689 Buffer const * Buffer::masterBuffer() const
2690 {
2691         // FIXME Should be make sure we are not in some kind
2692         // of recursive include? A -> B -> A will crash this.
2693         Buffer const * const pbuf = d->parent();
2694         if (!pbuf)
2695                 return this;
2696
2697         return pbuf->masterBuffer();
2698 }
2699
2700
2701 bool Buffer::isChild(Buffer * child) const
2702 {
2703         return d->children_positions.find(child) != d->children_positions.end();
2704 }
2705
2706
2707 DocIterator Buffer::firstChildPosition(Buffer const * child)
2708 {
2709         Impl::BufferPositionMap::iterator it;
2710         it = d->children_positions.find(child);
2711         if (it == d->children_positions.end())
2712                 return DocIterator(this);
2713         return it->second;
2714 }
2715
2716
2717 bool Buffer::hasChildren() const
2718 {
2719         return !d->children_positions.empty();
2720 }
2721
2722
2723 void Buffer::collectChildren(ListOfBuffers & clist, bool grand_children) const
2724 {
2725         // loop over children
2726         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
2727         Impl::BufferPositionMap::iterator end = d->children_positions.end();
2728         for (; it != end; ++it) {
2729                 Buffer * child = const_cast<Buffer *>(it->first);
2730                 // No duplicates
2731                 ListOfBuffers::const_iterator bit = find(clist.begin(), clist.end(), child);
2732                 if (bit != clist.end())
2733                         continue;
2734                 clist.push_back(child);
2735                 if (grand_children)
2736                         // there might be grandchildren
2737                         child->collectChildren(clist, true);
2738         }
2739 }
2740
2741
2742 ListOfBuffers Buffer::getChildren() const
2743 {
2744         ListOfBuffers v;
2745         collectChildren(v, false);
2746         // Make sure we have not included ourselves.
2747         ListOfBuffers::iterator bit = find(v.begin(), v.end(), this);
2748         if (bit != v.end()) {
2749                 LYXERR0("Recursive include detected in `" << fileName() << "'.");
2750                 v.erase(bit);
2751         }
2752         return v;
2753 }
2754
2755
2756 ListOfBuffers Buffer::getDescendents() const
2757 {
2758         ListOfBuffers v;
2759         collectChildren(v, true);
2760         // Make sure we have not included ourselves.
2761         ListOfBuffers::iterator bit = find(v.begin(), v.end(), this);
2762         if (bit != v.end()) {
2763                 LYXERR0("Recursive include detected in `" << fileName() << "'.");
2764                 v.erase(bit);
2765         }
2766         return v;
2767 }
2768
2769
2770 template<typename M>
2771 typename M::const_iterator greatest_below(M & m, typename M::key_type const & x)
2772 {
2773         if (m.empty())
2774                 return m.end();
2775
2776         typename M::const_iterator it = m.lower_bound(x);
2777         if (it == m.begin())
2778                 return m.end();
2779
2780         it--;
2781         return it;
2782 }
2783
2784
2785 MacroData const * Buffer::Impl::getBufferMacro(docstring const & name,
2786                                          DocIterator const & pos) const
2787 {
2788         LYXERR(Debug::MACROS, "Searching for " << to_ascii(name) << " at " << pos);
2789
2790         // if paragraphs have no macro context set, pos will be empty
2791         if (pos.empty())
2792                 return 0;
2793
2794         // we haven't found anything yet
2795         DocIterator bestPos = owner_->par_iterator_begin();
2796         MacroData const * bestData = 0;
2797
2798         // find macro definitions for name
2799         NamePositionScopeMacroMap::const_iterator nameIt = macros.find(name);
2800         if (nameIt != macros.end()) {
2801                 // find last definition in front of pos or at pos itself
2802                 PositionScopeMacroMap::const_iterator it
2803                         = greatest_below(nameIt->second, pos);
2804                 if (it != nameIt->second.end()) {
2805                         while (true) {
2806                                 // scope ends behind pos?
2807                                 if (pos < it->second.first) {
2808                                         // Looks good, remember this. If there
2809                                         // is no external macro behind this,
2810                                         // we found the right one already.
2811                                         bestPos = it->first;
2812                                         bestData = &it->second.second;
2813                                         break;
2814                                 }
2815
2816                                 // try previous macro if there is one
2817                                 if (it == nameIt->second.begin())
2818                                         break;
2819                                 it--;
2820                         }
2821                 }
2822         }
2823
2824         // find macros in included files
2825         PositionScopeBufferMap::const_iterator it
2826                 = greatest_below(position_to_children, pos);
2827         if (it == position_to_children.end())
2828                 // no children before
2829                 return bestData;
2830
2831         while (true) {
2832                 // do we know something better (i.e. later) already?
2833                 if (it->first < bestPos )
2834                         break;
2835
2836                 // scope ends behind pos?
2837                 if (pos < it->second.first
2838                         && (cloned_buffer_ ||
2839                             theBufferList().isLoaded(it->second.second))) {
2840                         // look for macro in external file
2841                         macro_lock = true;
2842                         MacroData const * data
2843                                 = it->second.second->getMacro(name, false);
2844                         macro_lock = false;
2845                         if (data) {
2846                                 bestPos = it->first;
2847                                 bestData = data;
2848                                 break;
2849                         }
2850                 }
2851
2852                 // try previous file if there is one
2853                 if (it == position_to_children.begin())
2854                         break;
2855                 --it;
2856         }
2857
2858         // return the best macro we have found
2859         return bestData;
2860 }
2861
2862
2863 MacroData const * Buffer::getMacro(docstring const & name,
2864         DocIterator const & pos, bool global) const
2865 {
2866         if (d->macro_lock)
2867                 return 0;
2868
2869         // query buffer macros
2870         MacroData const * data = d->getBufferMacro(name, pos);
2871         if (data != 0)
2872                 return data;
2873
2874         // If there is a master buffer, query that
2875         Buffer const * const pbuf = d->parent();
2876         if (pbuf) {
2877                 d->macro_lock = true;
2878                 MacroData const * macro = pbuf->getMacro(
2879                         name, *this, false);
2880                 d->macro_lock = false;
2881                 if (macro)
2882                         return macro;
2883         }
2884
2885         if (global) {
2886                 data = MacroTable::globalMacros().get(name);
2887                 if (data != 0)
2888                         return data;
2889         }
2890
2891         return 0;
2892 }
2893
2894
2895 MacroData const * Buffer::getMacro(docstring const & name, bool global) const
2896 {
2897         // set scope end behind the last paragraph
2898         DocIterator scope = par_iterator_begin();
2899         scope.pit() = scope.lastpit() + 1;
2900
2901         return getMacro(name, scope, global);
2902 }
2903
2904
2905 MacroData const * Buffer::getMacro(docstring const & name,
2906         Buffer const & child, bool global) const
2907 {
2908         // look where the child buffer is included first
2909         Impl::BufferPositionMap::iterator it = d->children_positions.find(&child);
2910         if (it == d->children_positions.end())
2911                 return 0;
2912
2913         // check for macros at the inclusion position
2914         return getMacro(name, it->second, global);
2915 }
2916
2917
2918 void Buffer::Impl::updateMacros(DocIterator & it, DocIterator & scope)
2919 {
2920         pit_type const lastpit = it.lastpit();
2921
2922         // look for macros in each paragraph
2923         while (it.pit() <= lastpit) {
2924                 Paragraph & par = it.paragraph();
2925
2926                 // iterate over the insets of the current paragraph
2927                 InsetList const & insets = par.insetList();
2928                 InsetList::const_iterator iit = insets.begin();
2929                 InsetList::const_iterator end = insets.end();
2930                 for (; iit != end; ++iit) {
2931                         it.pos() = iit->pos;
2932
2933                         // is it a nested text inset?
2934                         if (iit->inset->asInsetText()) {
2935                                 // Inset needs its own scope?
2936                                 InsetText const * itext = iit->inset->asInsetText();
2937                                 bool newScope = itext->isMacroScope();
2938
2939                                 // scope which ends just behind the inset
2940                                 DocIterator insetScope = it;
2941                                 ++insetScope.pos();
2942
2943                                 // collect macros in inset
2944                                 it.push_back(CursorSlice(*iit->inset));
2945                                 updateMacros(it, newScope ? insetScope : scope);
2946                                 it.pop_back();
2947                                 continue;
2948                         }
2949
2950                         if (iit->inset->asInsetTabular()) {
2951                                 CursorSlice slice(*iit->inset);
2952                                 size_t const numcells = slice.nargs();
2953                                 for (; slice.idx() < numcells; slice.forwardIdx()) {
2954                                         it.push_back(slice);
2955                                         updateMacros(it, scope);
2956                                         it.pop_back();
2957                                 }
2958                                 continue;
2959                         }
2960
2961                         // is it an external file?
2962                         if (iit->inset->lyxCode() == INCLUDE_CODE) {
2963                                 // get buffer of external file
2964                                 InsetInclude const & inset =
2965                                         static_cast<InsetInclude const &>(*iit->inset);
2966                                 macro_lock = true;
2967                                 Buffer * child = inset.getChildBuffer();
2968                                 macro_lock = false;
2969                                 if (!child)
2970                                         continue;
2971
2972                                 // register its position, but only when it is
2973                                 // included first in the buffer
2974                                 if (children_positions.find(child) ==
2975                                         children_positions.end())
2976                                                 children_positions[child] = it;
2977
2978                                 // register child with its scope
2979                                 position_to_children[it] = Impl::ScopeBuffer(scope, child);
2980                                 continue;
2981                         }
2982
2983                         InsetMath * im = iit->inset->asInsetMath();
2984                         if (doing_export && im)  {
2985                                 InsetMathHull * hull = im->asHullInset();
2986                                 if (hull)
2987                                         hull->recordLocation(it);
2988                         }
2989
2990                         if (iit->inset->lyxCode() != MATHMACRO_CODE)
2991                                 continue;
2992
2993                         // get macro data
2994                         MathMacroTemplate & macroTemplate =
2995                                 *iit->inset->asInsetMath()->asMacroTemplate();
2996                         MacroContext mc(owner_, it);
2997                         macroTemplate.updateToContext(mc);
2998
2999                         // valid?
3000                         bool valid = macroTemplate.validMacro();
3001                         // FIXME: Should be fixNameAndCheckIfValid() in fact,
3002                         // then the BufferView's cursor will be invalid in
3003                         // some cases which leads to crashes.
3004                         if (!valid)
3005                                 continue;
3006
3007                         // register macro
3008                         // FIXME (Abdel), I don't understandt why we pass 'it' here
3009                         // instead of 'macroTemplate' defined above... is this correct?
3010                         macros[macroTemplate.name()][it] =
3011                                 Impl::ScopeMacro(scope, MacroData(const_cast<Buffer *>(owner_), it));
3012                 }
3013
3014                 // next paragraph
3015                 it.pit()++;
3016                 it.pos() = 0;
3017         }
3018 }
3019
3020
3021 void Buffer::updateMacros() const
3022 {
3023         if (d->macro_lock)
3024                 return;
3025
3026         LYXERR(Debug::MACROS, "updateMacro of " << d->filename.onlyFileName());
3027
3028         // start with empty table
3029         d->macros.clear();
3030         d->children_positions.clear();
3031         d->position_to_children.clear();
3032
3033         // Iterate over buffer, starting with first paragraph
3034         // The scope must be bigger than any lookup DocIterator
3035         // later. For the global lookup, lastpit+1 is used, hence
3036         // we use lastpit+2 here.
3037         DocIterator it = par_iterator_begin();
3038         DocIterator outerScope = it;
3039         outerScope.pit() = outerScope.lastpit() + 2;
3040         d->updateMacros(it, outerScope);
3041 }
3042
3043
3044 void Buffer::getUsedBranches(std::list<docstring> & result, bool const from_master) const
3045 {
3046         InsetIterator it  = inset_iterator_begin(inset());
3047         InsetIterator const end = inset_iterator_end(inset());
3048         for (; it != end; ++it) {
3049                 if (it->lyxCode() == BRANCH_CODE) {
3050                         InsetBranch & br = static_cast<InsetBranch &>(*it);
3051                         docstring const name = br.branch();
3052                         if (!from_master && !params().branchlist().find(name))
3053                                 result.push_back(name);
3054                         else if (from_master && !masterBuffer()->params().branchlist().find(name))
3055                                 result.push_back(name);
3056                         continue;
3057                 }
3058                 if (it->lyxCode() == INCLUDE_CODE) {
3059                         // get buffer of external file
3060                         InsetInclude const & ins =
3061                                 static_cast<InsetInclude const &>(*it);
3062                         Buffer * child = ins.getChildBuffer();
3063                         if (!child)
3064                                 continue;
3065                         child->getUsedBranches(result, true);
3066                 }
3067         }
3068         // remove duplicates
3069         result.unique();
3070 }
3071
3072
3073 void Buffer::updateMacroInstances(UpdateType utype) const
3074 {
3075         LYXERR(Debug::MACROS, "updateMacroInstances for "
3076                 << d->filename.onlyFileName());
3077         DocIterator it = doc_iterator_begin(this);
3078         it.forwardInset();
3079         DocIterator const end = doc_iterator_end(this);
3080         for (; it != end; it.forwardInset()) {
3081                 // look for MathData cells in InsetMathNest insets
3082                 InsetMath * minset = it.nextInset()->asInsetMath();
3083                 if (!minset)
3084                         continue;
3085
3086                 // update macro in all cells of the InsetMathNest
3087                 DocIterator::idx_type n = minset->nargs();
3088                 MacroContext mc = MacroContext(this, it);
3089                 for (DocIterator::idx_type i = 0; i < n; ++i) {
3090                         MathData & data = minset->cell(i);
3091                         data.updateMacros(0, mc, utype);
3092                 }
3093         }
3094 }
3095
3096
3097 void Buffer::listMacroNames(MacroNameSet & macros) const
3098 {
3099         if (d->macro_lock)
3100                 return;
3101
3102         d->macro_lock = true;
3103
3104         // loop over macro names
3105         Impl::NamePositionScopeMacroMap::iterator nameIt = d->macros.begin();
3106         Impl::NamePositionScopeMacroMap::iterator nameEnd = d->macros.end();
3107         for (; nameIt != nameEnd; ++nameIt)
3108                 macros.insert(nameIt->first);
3109
3110         // loop over children
3111         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
3112         Impl::BufferPositionMap::iterator end = d->children_positions.end();
3113         for (; it != end; ++it)
3114                 it->first->listMacroNames(macros);
3115
3116         // call parent
3117         Buffer const * const pbuf = d->parent();
3118         if (pbuf)
3119                 pbuf->listMacroNames(macros);
3120
3121         d->macro_lock = false;
3122 }
3123
3124
3125 void Buffer::listParentMacros(MacroSet & macros, LaTeXFeatures & features) const
3126 {
3127         Buffer const * const pbuf = d->parent();
3128         if (!pbuf)
3129                 return;
3130
3131         MacroNameSet names;
3132         pbuf->listMacroNames(names);
3133
3134         // resolve macros
3135         MacroNameSet::iterator it = names.begin();
3136         MacroNameSet::iterator end = names.end();
3137         for (; it != end; ++it) {
3138                 // defined?
3139                 MacroData const * data =
3140                 pbuf->getMacro(*it, *this, false);
3141                 if (data) {
3142                         macros.insert(data);
3143
3144                         // we cannot access the original MathMacroTemplate anymore
3145                         // here to calls validate method. So we do its work here manually.
3146                         // FIXME: somehow make the template accessible here.
3147                         if (data->optionals() > 0)
3148                                 features.require("xargs");
3149                 }
3150         }
3151 }
3152
3153
3154 Buffer::References & Buffer::references(docstring const & label)
3155 {
3156         if (d->parent())
3157                 return const_cast<Buffer *>(masterBuffer())->references(label);
3158
3159         RefCache::iterator it = d->ref_cache_.find(label);
3160         if (it != d->ref_cache_.end())
3161                 return it->second.second;
3162
3163         static InsetLabel const * dummy_il = 0;
3164         static References const dummy_refs;
3165         it = d->ref_cache_.insert(
3166                 make_pair(label, make_pair(dummy_il, dummy_refs))).first;
3167         return it->second.second;
3168 }
3169
3170
3171 Buffer::References const & Buffer::references(docstring const & label) const
3172 {
3173         return const_cast<Buffer *>(this)->references(label);
3174 }
3175
3176
3177 void Buffer::setInsetLabel(docstring const & label, InsetLabel const * il)
3178 {
3179         masterBuffer()->d->ref_cache_[label].first = il;
3180 }
3181
3182
3183 InsetLabel const * Buffer::insetLabel(docstring const & label) const
3184 {
3185         return masterBuffer()->d->ref_cache_[label].first;
3186 }
3187
3188
3189 void Buffer::clearReferenceCache() const
3190 {
3191         if (!d->parent())
3192                 d->ref_cache_.clear();
3193 }
3194
3195
3196 void Buffer::changeRefsIfUnique(docstring const & from, docstring const & to,
3197         InsetCode code)
3198 {
3199         //FIXME: This does not work for child documents yet.
3200         LASSERT(code == CITE_CODE, /**/);
3201
3202         reloadBibInfoCache();
3203
3204         // Check if the label 'from' appears more than once
3205         BiblioInfo const & keys = masterBibInfo();
3206         BiblioInfo::const_iterator bit  = keys.begin();
3207         BiblioInfo::const_iterator bend = keys.end();
3208         vector<docstring> labels;
3209
3210         for (; bit != bend; ++bit)
3211                 // FIXME UNICODE
3212                 labels.push_back(bit->first);
3213
3214         if (count(labels.begin(), labels.end(), from) > 1)
3215                 return;
3216
3217         string const paramName = "key";
3218         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
3219                 if (it->lyxCode() == code) {
3220                         InsetCommand * inset = it->asInsetCommand();
3221                         if (!inset)
3222                                 continue;
3223                         docstring const oldValue = inset->getParam(paramName);
3224                         if (oldValue == from)
3225                                 inset->setParam(paramName, to);
3226                 }
3227         }
3228 }
3229
3230
3231 void Buffer::getSourceCode(odocstream & os, string const format,
3232                            pit_type par_begin, pit_type par_end,
3233                            OutputWhat output) const
3234 {
3235         OutputParams runparams(&params().encoding());
3236         runparams.nice = true;
3237         runparams.flavor = params().getOutputFlavor(format);
3238         runparams.linelen = lyxrc.plaintext_linelen;
3239         // No side effect of file copying and image conversion
3240         runparams.dryrun = true;
3241
3242         if (output == CurrentParagraph) {
3243                 runparams.par_begin = par_begin;
3244                 runparams.par_end = par_end;
3245                 if (par_begin + 1 == par_end) {
3246                         os << "% "
3247                            << bformat(_("Preview source code for paragraph %1$d"), par_begin)
3248                            << "\n\n";
3249                 } else {
3250                         os << "% "
3251                            << bformat(_("Preview source code from paragraph %1$s to %2$s"),
3252                                         convert<docstring>(par_begin),
3253                                         convert<docstring>(par_end - 1))
3254                            << "\n\n";
3255                 }
3256                 TexRow texrow;
3257                 texrow.reset();
3258                 texrow.newline();
3259                 texrow.newline();
3260                 // output paragraphs
3261                 if (params().isDocBook())
3262                         docbookParagraphs(text(), *this, os, runparams);
3263                 else if (runparams.flavor == OutputParams::HTML) {
3264                         XHTMLStream xs(os);
3265                         setMathFlavor(runparams);
3266                         xhtmlParagraphs(text(), *this, xs, runparams);
3267                 } else {
3268                         // latex or literate
3269                         otexstream ots(os, texrow);
3270                         latexParagraphs(*this, text(), ots, runparams);
3271                 }
3272         } else {
3273                 os << "% ";
3274                 if (output == FullSource)
3275                         os << _("Preview source code");
3276                 else if (output == OnlyPreamble)
3277                         os << _("Preview preamble");
3278                 else if (output == OnlyBody)
3279                         os << _("Preview body");
3280                 os << "\n\n";
3281                 d->texrow.reset();
3282                 d->texrow.newline();
3283                 d->texrow.newline();
3284                 if (params().isDocBook())
3285                         writeDocBookSource(os, absFileName(), runparams, output);
3286                 else if (runparams.flavor == OutputParams::HTML)
3287                         writeLyXHTMLSource(os, runparams, output);
3288                 else {
3289                         // latex or literate
3290                         otexstream ots(os, d->texrow);
3291                         writeLaTeXSource(ots, string(), runparams, output);
3292                 }
3293         }
3294 }
3295
3296
3297 ErrorList & Buffer::errorList(string const & type) const
3298 {
3299         return d->errorLists[type];
3300 }
3301
3302
3303 void Buffer::updateTocItem(std::string const & type,
3304         DocIterator const & dit) const
3305 {
3306         if (d->gui_)
3307                 d->gui_->updateTocItem(type, dit);
3308 }
3309
3310
3311 void Buffer::structureChanged() const
3312 {
3313         if (d->gui_)
3314                 d->gui_->structureChanged();
3315 }
3316
3317
3318 void Buffer::errors(string const & err, bool from_master) const
3319 {
3320         if (d->gui_)
3321                 d->gui_->errors(err, from_master);
3322 }
3323
3324
3325 void Buffer::message(docstring const & msg) const
3326 {
3327         if (d->gui_)
3328                 d->gui_->message(msg);
3329 }
3330
3331
3332 void Buffer::setBusy(bool on) const
3333 {
3334         if (d->gui_)
3335                 d->gui_->setBusy(on);
3336 }
3337
3338
3339 void Buffer::updateTitles() const
3340 {
3341         if (d->wa_)
3342                 d->wa_->updateTitles();
3343 }
3344
3345
3346 void Buffer::resetAutosaveTimers() const
3347 {
3348         if (d->gui_)
3349                 d->gui_->resetAutosaveTimers();
3350 }
3351
3352
3353 bool Buffer::hasGuiDelegate() const
3354 {
3355         return d->gui_;
3356 }
3357
3358
3359 void Buffer::setGuiDelegate(frontend::GuiBufferDelegate * gui)
3360 {
3361         d->gui_ = gui;
3362 }
3363
3364
3365
3366 namespace {
3367
3368 class AutoSaveBuffer : public ForkedProcess {
3369 public:
3370         ///
3371         AutoSaveBuffer(Buffer const & buffer, FileName const & fname)
3372                 : buffer_(buffer), fname_(fname) {}
3373         ///
3374         virtual shared_ptr<ForkedProcess> clone() const
3375         {
3376                 return shared_ptr<ForkedProcess>(new AutoSaveBuffer(*this));
3377         }
3378         ///
3379         int start()
3380         {
3381                 command_ = to_utf8(bformat(_("Auto-saving %1$s"),
3382                                                  from_utf8(fname_.absFileName())));
3383                 return run(DontWait);
3384         }
3385 private:
3386         ///
3387         virtual int generateChild();
3388         ///
3389         Buffer const & buffer_;
3390         FileName fname_;
3391 };
3392
3393
3394 int AutoSaveBuffer::generateChild()
3395 {
3396 #if defined(__APPLE__)
3397         /* FIXME fork() is not usable for autosave on Mac OS X 10.6 (snow leopard)
3398          *   We should use something else like threads.
3399          *
3400          * Since I do not know how to determine at run time what is the OS X
3401          * version, I just disable forking altogether for now (JMarc)
3402          */
3403         pid_t const pid = -1;
3404 #else
3405         // tmp_ret will be located (usually) in /tmp
3406         // will that be a problem?
3407         // Note that this calls ForkedCalls::fork(), so it's
3408         // ok cross-platform.
3409         pid_t const pid = fork();
3410         // If you want to debug the autosave
3411         // you should set pid to -1, and comment out the fork.
3412         if (pid != 0 && pid != -1)
3413                 return pid;
3414 #endif
3415
3416         // pid = -1 signifies that lyx was unable
3417         // to fork. But we will do the save
3418         // anyway.
3419         bool failed = false;
3420         FileName const tmp_ret = FileName::tempName("lyxauto");
3421         if (!tmp_ret.empty()) {
3422                 buffer_.writeFile(tmp_ret);
3423                 // assume successful write of tmp_ret
3424                 if (!tmp_ret.moveTo(fname_))
3425                         failed = true;
3426         } else
3427                 failed = true;
3428
3429         if (failed) {
3430                 // failed to write/rename tmp_ret so try writing direct
3431                 if (!buffer_.writeFile(fname_)) {
3432                         // It is dangerous to do this in the child,
3433                         // but safe in the parent, so...
3434                         if (pid == -1) // emit message signal.
3435                                 buffer_.message(_("Autosave failed!"));
3436                 }
3437         }
3438
3439         if (pid == 0) // we are the child so...
3440                 _exit(0);
3441
3442         return pid;
3443 }
3444
3445 } // namespace anon
3446
3447
3448 FileName Buffer::getEmergencyFileName() const
3449 {
3450         return FileName(d->filename.absFileName() + ".emergency");
3451 }
3452
3453
3454 FileName Buffer::getAutosaveFileName() const
3455 {
3456         // if the document is unnamed try to save in the backup dir, else
3457         // in the default document path, and as a last try in the filePath,
3458         // which will most often be the temporary directory
3459         string fpath;
3460         if (isUnnamed())
3461                 fpath = lyxrc.backupdir_path.empty() ? lyxrc.document_path
3462                         : lyxrc.backupdir_path;
3463         if (!isUnnamed() || fpath.empty() || !FileName(fpath).exists())
3464                 fpath = filePath();
3465
3466         string const fname = "#" + d->filename.onlyFileName() + "#";
3467
3468         return makeAbsPath(fname, fpath);
3469 }
3470
3471
3472 void Buffer::removeAutosaveFile() const
3473 {
3474         FileName const f = getAutosaveFileName();
3475         if (f.exists())
3476                 f.removeFile();
3477 }
3478
3479
3480 void Buffer::moveAutosaveFile(support::FileName const & oldauto) const
3481 {
3482         FileName const newauto = getAutosaveFileName();
3483         oldauto.refresh();
3484         if (newauto != oldauto && oldauto.exists())
3485                 if (!oldauto.moveTo(newauto))
3486                         LYXERR0("Unable to move autosave file `" << oldauto << "'!");
3487 }
3488
3489
3490 bool Buffer::autoSave() const
3491 {
3492         Buffer const * buf = d->cloned_buffer_ ? d->cloned_buffer_ : this;
3493         if (buf->d->bak_clean || isReadonly())
3494                 return true;
3495
3496         message(_("Autosaving current document..."));
3497         buf->d->bak_clean = true;
3498
3499         FileName const fname = getAutosaveFileName();
3500         if (d->cloned_buffer_) {
3501                 // If this buffer is cloned, we assume that
3502                 // we are running in a separate thread already.
3503                 FileName const tmp_ret = FileName::tempName("lyxauto");
3504                 if (!tmp_ret.empty()) {
3505                         writeFile(tmp_ret);
3506                         // assume successful write of tmp_ret
3507                         if (tmp_ret.moveTo(fname))
3508                                 return true;
3509                 }
3510                 // failed to write/rename tmp_ret so try writing direct
3511                 return writeFile(fname);
3512         } else {
3513                 /// This function is deprecated as the frontend needs to take care
3514                 /// of cloning the buffer and autosaving it in another thread. It
3515                 /// is still here to allow (QT_VERSION < 0x040400).
3516                 AutoSaveBuffer autosave(*this, fname);
3517                 autosave.start();
3518                 return true;
3519         }
3520 }
3521
3522
3523 // helper class, to guarantee this gets reset properly
3524 class Buffer::MarkAsExporting {
3525 public:
3526         MarkAsExporting(Buffer const * buf) : buf_(buf)
3527         {
3528                 LASSERT(buf_, /* */);
3529                 buf_->setExportStatus(true);
3530         }
3531         ~MarkAsExporting()
3532         {
3533                 buf_->setExportStatus(false);
3534         }
3535 private:
3536         Buffer const * const buf_;
3537 };
3538
3539
3540
3541 void Buffer::setExportStatus(bool e) const
3542 {
3543         d->doing_export = e;
3544         ListOfBuffers clist = getDescendents();
3545         ListOfBuffers::const_iterator cit = clist.begin();
3546         ListOfBuffers::const_iterator const cen = clist.end();
3547         for (; cit != cen; ++cit)
3548                 (*cit)->d->doing_export = e;
3549 }
3550
3551
3552 bool Buffer::isExporting() const
3553 {
3554         return d->doing_export;
3555 }
3556
3557
3558 Buffer::ExportStatus Buffer::doExport(string const & target, bool put_in_tempdir)
3559         const
3560 {
3561         string result_file;
3562         return doExport(target, put_in_tempdir, result_file);
3563 }
3564
3565 Buffer::ExportStatus Buffer::doExport(string const & target, bool put_in_tempdir,
3566         string & result_file) const
3567 {
3568         bool const update_unincluded =
3569                         params().maintain_unincluded_children
3570                         && !params().getIncludedChildren().empty();
3571
3572         // (1) export with all included children (omit \includeonly)
3573         if (update_unincluded) {
3574                 ExportStatus const status =
3575                         doExport(target, put_in_tempdir, true, result_file);
3576                 if (status != ExportSuccess)
3577                         return status;
3578         }
3579         // (2) export with included children only
3580         return doExport(target, put_in_tempdir, false, result_file);
3581 }
3582
3583
3584 void Buffer::setMathFlavor(OutputParams & op) const
3585 {
3586         switch (params().html_math_output) {
3587         case BufferParams::MathML:
3588                 op.math_flavor = OutputParams::MathAsMathML;
3589                 break;
3590         case BufferParams::HTML:
3591                 op.math_flavor = OutputParams::MathAsHTML;
3592                 break;
3593         case BufferParams::Images:
3594                 op.math_flavor = OutputParams::MathAsImages;
3595                 break;
3596         case BufferParams::LaTeX:
3597                 op.math_flavor = OutputParams::MathAsLaTeX;
3598                 break;
3599         }
3600 }
3601
3602
3603 Buffer::ExportStatus Buffer::doExport(string const & target, bool put_in_tempdir,
3604         bool includeall, string & result_file) const
3605 {
3606         LYXERR(Debug::FILES, "target=" << target);
3607         OutputParams runparams(&params().encoding());
3608         string format = target;
3609         string dest_filename;
3610         size_t pos = target.find(' ');
3611         if (pos != string::npos) {
3612                 dest_filename = target.substr(pos + 1, target.length() - pos - 1);
3613                 format = target.substr(0, pos);
3614                 runparams.export_folder = FileName(dest_filename).onlyPath().realPath();
3615                 FileName(dest_filename).onlyPath().createPath();
3616                 LYXERR(Debug::FILES, "format=" << format << ", dest_filename=" << dest_filename << ", export_folder=" << runparams.export_folder);
3617         }
3618         MarkAsExporting exporting(this);
3619         string backend_format;
3620         runparams.flavor = OutputParams::LATEX;
3621         runparams.linelen = lyxrc.plaintext_linelen;
3622         runparams.includeall = includeall;
3623         vector<string> backs = params().backends();
3624         Converters converters = theConverters();
3625         if (find(backs.begin(), backs.end(), format) == backs.end()) {
3626                 // Get shortest path to format
3627                 converters.buildGraph();
3628                 Graph::EdgePath path;
3629                 for (vector<string>::const_iterator it = backs.begin();
3630                      it != backs.end(); ++it) {
3631                         Graph::EdgePath p = converters.getPath(*it, format);
3632                         if (!p.empty() && (path.empty() || p.size() < path.size())) {
3633                                 backend_format = *it;
3634                                 path = p;
3635                         }
3636                 }
3637                 if (path.empty()) {
3638                         if (!put_in_tempdir) {
3639                                 // Only show this alert if this is an export to a non-temporary
3640                                 // file (not for previewing).
3641                                 Alert::error(_("Couldn't export file"), bformat(
3642                                         _("No information for exporting the format %1$s."),
3643                                         formats.prettyName(format)));
3644                         }
3645                         return ExportNoPathToFormat;
3646                 }
3647                 runparams.flavor = converters.getFlavor(path);
3648
3649         } else {
3650                 backend_format = format;
3651                 LYXERR(Debug::FILES, "backend_format=" << backend_format);
3652                 // FIXME: Don't hardcode format names here, but use a flag
3653                 if (backend_format == "pdflatex")
3654                         runparams.flavor = OutputParams::PDFLATEX;
3655                 else if (backend_format == "luatex")
3656                         runparams.flavor = OutputParams::LUATEX;
3657                 else if (backend_format == "dviluatex")
3658                         runparams.flavor = OutputParams::DVILUATEX;
3659                 else if (backend_format == "xetex")
3660                         runparams.flavor = OutputParams::XETEX;
3661         }
3662
3663         string filename = latexName(false);
3664         filename = addName(temppath(), filename);
3665         filename = changeExtension(filename,
3666                                    formats.extension(backend_format));
3667         LYXERR(Debug::FILES, "filename=" << filename);
3668
3669         // Plain text backend
3670         if (backend_format == "text") {
3671                 runparams.flavor = OutputParams::TEXT;
3672                 writePlaintextFile(*this, FileName(filename), runparams);
3673         }
3674         // HTML backend
3675         else if (backend_format == "xhtml") {
3676                 runparams.flavor = OutputParams::HTML;
3677                 setMathFlavor(runparams);
3678                 makeLyXHTMLFile(FileName(filename), runparams);
3679         } else if (backend_format == "lyx")
3680                 writeFile(FileName(filename));
3681         // Docbook backend
3682         else if (params().isDocBook()) {
3683                 runparams.nice = !put_in_tempdir;
3684                 makeDocBookFile(FileName(filename), runparams);
3685         }
3686         // LaTeX backend
3687         else if (backend_format == format) {
3688                 runparams.nice = true;
3689                 if (!makeLaTeXFile(FileName(filename), string(), runparams)) {
3690                         if (d->cloned_buffer_) {
3691                                 d->cloned_buffer_->d->errorLists["Export"] =
3692                                         d->errorLists["Export"];
3693                         }
3694                         return ExportError;
3695                 }
3696         } else if (!lyxrc.tex_allows_spaces
3697                    && contains(filePath(), ' ')) {
3698                 Alert::error(_("File name error"),
3699                            _("The directory path to the document cannot contain spaces."));
3700                 return ExportTexPathHasSpaces;
3701         } else {
3702                 runparams.nice = false;
3703                 if (!makeLaTeXFile(FileName(filename), filePath(), runparams)) {
3704                         if (d->cloned_buffer_) {
3705                                 d->cloned_buffer_->d->errorLists["Export"] =
3706                                         d->errorLists["Export"];
3707                         }
3708                         return ExportError;
3709                 }
3710         }
3711
3712         string const error_type = (format == "program")
3713                 ? "Build" : params().bufferFormat();
3714         ErrorList & error_list = d->errorLists[error_type];
3715         string const ext = formats.extension(format);
3716         FileName const tmp_result_file(changeExtension(filename, ext));
3717         bool const success = converters.convert(this, FileName(filename),
3718                 tmp_result_file, FileName(absFileName()), backend_format, format,
3719                 error_list);
3720
3721         // Emit the signal to show the error list or copy it back to the
3722         // cloned Buffer so that it can be emitted afterwards.
3723         if (format != backend_format) {
3724                 if (d->cloned_buffer_) {
3725                         d->cloned_buffer_->d->errorLists[error_type] =
3726                                 d->errorLists[error_type];
3727                 } else
3728                         errors(error_type);
3729                 // also to the children, in case of master-buffer-view
3730                 ListOfBuffers clist = getDescendents();
3731                 ListOfBuffers::const_iterator cit = clist.begin();
3732                 ListOfBuffers::const_iterator const cen = clist.end();
3733                 for (; cit != cen; ++cit) {
3734                         if (d->cloned_buffer_) {
3735                                 // Enable reverse search by copying back the
3736                                 // texrow object to the cloned buffer.
3737                                 // FIXME: this is not thread safe.
3738                                 (*cit)->d->cloned_buffer_->d->texrow = (*cit)->d->texrow;
3739                                 (*cit)->d->cloned_buffer_->d->errorLists[error_type] =
3740                                         (*cit)->d->errorLists[error_type];
3741                         } else
3742                                 (*cit)->errors(error_type, true);
3743                 }
3744         }
3745
3746         if (d->cloned_buffer_) {
3747                 // Enable reverse dvi or pdf to work by copying back the texrow
3748                 // object to the cloned buffer.
3749                 // FIXME: There is a possibility of concurrent access to texrow
3750                 // here from the main GUI thread that should be securized.
3751                 d->cloned_buffer_->d->texrow = d->texrow;
3752                 string const error_type = params().bufferFormat();
3753                 d->cloned_buffer_->d->errorLists[error_type] = d->errorLists[error_type];
3754         }
3755
3756         if (!success)
3757                 return ExportConverterError;
3758
3759         if (put_in_tempdir) {
3760                 result_file = tmp_result_file.absFileName();
3761                 return ExportSuccess;
3762         }
3763
3764         if (dest_filename.empty())
3765                 result_file = changeExtension(d->exportFileName().absFileName(), ext);
3766         else
3767                 result_file = dest_filename;
3768         // We need to copy referenced files (e. g. included graphics
3769         // if format == "dvi") to the result dir.
3770         vector<ExportedFile> const files =
3771                 runparams.exportdata->externalFiles(format);
3772         string const dest = runparams.export_folder.empty() ?
3773                 onlyPath(result_file) : runparams.export_folder;
3774         bool use_force = use_gui ? lyxrc.export_overwrite == ALL_FILES
3775                                  : force_overwrite == ALL_FILES;
3776         CopyStatus status = use_force ? FORCE : SUCCESS;
3777
3778         vector<ExportedFile>::const_iterator it = files.begin();
3779         vector<ExportedFile>::const_iterator const en = files.end();
3780         for (; it != en && status != CANCEL; ++it) {
3781                 string const fmt = formats.getFormatFromFile(it->sourceName);
3782                 string fixedName = it->exportName;
3783                 if (!runparams.export_folder.empty()) {
3784                         // Relative pathnames starting with ../ will be sanitized
3785                         // if exporting to a different folder
3786                         while (fixedName.substr(0, 3) == "../")
3787                                 fixedName = fixedName.substr(3, fixedName.length() - 3);
3788                 }
3789                 FileName fixedFileName = makeAbsPath(fixedName, dest);
3790                 fixedFileName.onlyPath().createPath();
3791                 status = copyFile(fmt, it->sourceName,
3792                         fixedFileName,
3793                         it->exportName, status == FORCE,
3794                         runparams.export_folder.empty());
3795         }
3796
3797         if (status == CANCEL) {
3798                 message(_("Document export cancelled."));
3799                 return ExportCancel;
3800         }
3801
3802         if (tmp_result_file.exists()) {
3803                 // Finally copy the main file
3804                 use_force = use_gui ? lyxrc.export_overwrite != NO_FILES
3805                                     : force_overwrite != NO_FILES;
3806                 if (status == SUCCESS && use_force)
3807                         status = FORCE;
3808                 status = copyFile(format, tmp_result_file,
3809                         FileName(result_file), result_file,
3810                         status == FORCE);
3811                 if (status == CANCEL) {
3812                         message(_("Document export cancelled."));
3813                         return ExportCancel;
3814                 } else {
3815                         message(bformat(_("Document exported as %1$s "
3816                                 "to file `%2$s'"),
3817                                 formats.prettyName(format),
3818                                 makeDisplayPath(result_file)));
3819                 }
3820         } else {
3821                 // This must be a dummy converter like fax (bug 1888)
3822                 message(bformat(_("Document exported as %1$s"),
3823                         formats.prettyName(format)));
3824         }
3825
3826         return ExportSuccess;
3827 }
3828
3829
3830 Buffer::ExportStatus Buffer::preview(string const & format) const
3831 {
3832         bool const update_unincluded =
3833                         params().maintain_unincluded_children
3834                         && !params().getIncludedChildren().empty();
3835         return preview(format, update_unincluded);
3836 }
3837
3838 Buffer::ExportStatus Buffer::preview(string const & format, bool includeall) const
3839 {
3840         MarkAsExporting exporting(this);
3841         string result_file;
3842         // (1) export with all included children (omit \includeonly)
3843         if (includeall) {
3844                 ExportStatus const status = doExport(format, true, true, result_file);
3845                 if (status != ExportSuccess)
3846                         return status;
3847         }
3848         // (2) export with included children only
3849         ExportStatus const status = doExport(format, true, false, result_file);
3850         if (status != ExportSuccess)
3851                 return status;
3852         if (!formats.view(*this, FileName(result_file), format))
3853                 return PreviewError;
3854         return PreviewSuccess;
3855 }
3856
3857
3858 Buffer::ReadStatus Buffer::extractFromVC()
3859 {
3860         bool const found = LyXVC::file_not_found_hook(d->filename);
3861         if (!found)
3862                 return ReadFileNotFound;
3863         if (!d->filename.isReadableFile())
3864                 return ReadVCError;
3865         return ReadSuccess;
3866 }
3867
3868
3869 Buffer::ReadStatus Buffer::loadEmergency()
3870 {
3871         FileName const emergencyFile = getEmergencyFileName();
3872         if (!emergencyFile.exists()
3873                   || emergencyFile.lastModified() <= d->filename.lastModified())
3874                 return ReadFileNotFound;
3875
3876         docstring const file = makeDisplayPath(d->filename.absFileName(), 20);
3877         docstring const text = bformat(_("An emergency save of the document "
3878                 "%1$s exists.\n\nRecover emergency save?"), file);
3879
3880         int const load_emerg = Alert::prompt(_("Load emergency save?"), text,
3881                 0, 2, _("&Recover"), _("&Load Original"), _("&Cancel"));
3882
3883         switch (load_emerg)
3884         {
3885         case 0: {
3886                 docstring str;
3887                 ReadStatus const ret_llf = loadThisLyXFile(emergencyFile);
3888                 bool const success = (ret_llf == ReadSuccess);
3889                 if (success) {
3890                         if (isReadonly()) {
3891                                 Alert::warning(_("File is read-only"),
3892                                         bformat(_("An emergency file is successfully loaded, "
3893                                         "but the original file %1$s is marked read-only. "
3894                                         "Please make sure to save the document as a different "
3895                                         "file."), from_utf8(d->filename.absFileName())));
3896                         }
3897                         markDirty();
3898                         str = _("Document was successfully recovered.");
3899                 } else
3900                         str = _("Document was NOT successfully recovered.");
3901                 str += "\n\n" + bformat(_("Remove emergency file now?\n(%1$s)"),
3902                         makeDisplayPath(emergencyFile.absFileName()));
3903
3904                 int const del_emerg =
3905                         Alert::prompt(_("Delete emergency file?"), str, 1, 1,
3906                                 _("&Remove"), _("&Keep"));
3907                 if (del_emerg == 0) {
3908                         emergencyFile.removeFile();
3909                         if (success)
3910                                 Alert::warning(_("Emergency file deleted"),
3911                                         _("Do not forget to save your file now!"), true);
3912                         }
3913                 return success ? ReadSuccess : ReadEmergencyFailure;
3914         }
3915         case 1: {
3916                 int const del_emerg =
3917                         Alert::prompt(_("Delete emergency file?"),
3918                                 _("Remove emergency file now?"), 1, 1,
3919                                 _("&Remove"), _("&Keep"));
3920                 if (del_emerg == 0)
3921                         emergencyFile.removeFile();
3922                 return ReadOriginal;
3923         }
3924
3925         default:
3926                 break;
3927         }
3928         return ReadCancel;
3929 }
3930
3931
3932 Buffer::ReadStatus Buffer::loadAutosave()
3933 {
3934         // Now check if autosave file is newer.
3935         FileName const autosaveFile = getAutosaveFileName();
3936         if (!autosaveFile.exists()
3937                   || autosaveFile.lastModified() <= d->filename.lastModified())
3938                 return ReadFileNotFound;
3939
3940         docstring const file = makeDisplayPath(d->filename.absFileName(), 20);
3941         docstring const text = bformat(_("The backup of the document %1$s "
3942                 "is newer.\n\nLoad the backup instead?"), file);
3943         int const ret = Alert::prompt(_("Load backup?"), text, 0, 2,
3944                 _("&Load backup"), _("Load &original"), _("&Cancel"));
3945
3946         switch (ret)
3947         {
3948         case 0: {
3949                 ReadStatus const ret_llf = loadThisLyXFile(autosaveFile);
3950                 // the file is not saved if we load the autosave file.
3951                 if (ret_llf == ReadSuccess) {
3952                         if (isReadonly()) {
3953                                 Alert::warning(_("File is read-only"),
3954                                         bformat(_("A backup file is successfully loaded, "
3955                                         "but the original file %1$s is marked read-only. "
3956                                         "Please make sure to save the document as a "
3957                                         "different file."),
3958                                         from_utf8(d->filename.absFileName())));
3959                         }
3960                         markDirty();
3961                         return ReadSuccess;
3962                 }
3963                 return ReadAutosaveFailure;
3964         }
3965         case 1:
3966                 // Here we delete the autosave
3967                 autosaveFile.removeFile();
3968                 return ReadOriginal;
3969         default:
3970                 break;
3971         }
3972         return ReadCancel;
3973 }
3974
3975
3976 Buffer::ReadStatus Buffer::loadLyXFile()
3977 {
3978         if (!d->filename.isReadableFile()) {
3979                 ReadStatus const ret_rvc = extractFromVC();
3980                 if (ret_rvc != ReadSuccess)
3981                         return ret_rvc;
3982         }
3983
3984         ReadStatus const ret_re = loadEmergency();
3985         if (ret_re == ReadSuccess || ret_re == ReadCancel)
3986                 return ret_re;
3987
3988         ReadStatus const ret_ra = loadAutosave();
3989         if (ret_ra == ReadSuccess || ret_ra == ReadCancel)
3990                 return ret_ra;
3991
3992         return loadThisLyXFile(d->filename);
3993 }
3994
3995
3996 Buffer::ReadStatus Buffer::loadThisLyXFile(FileName const & fn)
3997 {
3998         return readFile(fn);
3999 }
4000
4001
4002 void Buffer::bufferErrors(TeXErrors const & terr, ErrorList & errorList) const
4003 {
4004         TeXErrors::Errors::const_iterator it = terr.begin();
4005         TeXErrors::Errors::const_iterator end = terr.end();
4006         ListOfBuffers clist = getDescendents();
4007         ListOfBuffers::const_iterator cen = clist.end();
4008
4009         for (; it != end; ++it) {
4010                 int id_start = -1;
4011                 int pos_start = -1;
4012                 int errorRow = it->error_in_line;
4013                 Buffer const * buf = 0;
4014                 Impl const * p = d;
4015                 if (it->child_name.empty())
4016                     p->texrow.getIdFromRow(errorRow, id_start, pos_start);
4017                 else {
4018                         // The error occurred in a child
4019                         ListOfBuffers::const_iterator cit = clist.begin();
4020                         for (; cit != cen; ++cit) {
4021                                 string const child_name =
4022                                         DocFileName(changeExtension(
4023                                                 (*cit)->absFileName(), "tex")).
4024                                                         mangledFileName();
4025                                 if (it->child_name != child_name)
4026                                         continue;
4027                                 (*cit)->d->texrow.getIdFromRow(errorRow,
4028                                                         id_start, pos_start);
4029                                 if (id_start != -1) {
4030                                         buf = d->cloned_buffer_
4031                                                 ? (*cit)->d->cloned_buffer_->d->owner_
4032                                                 : (*cit)->d->owner_;
4033                                         p = (*cit)->d;
4034                                         break;
4035                                 }
4036                         }
4037                 }
4038                 int id_end = -1;
4039                 int pos_end = -1;
4040                 bool found;
4041                 do {
4042                         ++errorRow;
4043                         found = p->texrow.getIdFromRow(errorRow, id_end, pos_end);
4044                 } while (found && id_start == id_end && pos_start == pos_end);
4045
4046                 if (id_start != id_end) {
4047                         // Next registered position is outside the inset where
4048                         // the error occurred, so signal end-of-paragraph
4049                         pos_end = 0;
4050                 }
4051
4052                 errorList.push_back(ErrorItem(it->error_desc,
4053                         it->error_text, id_start, pos_start, pos_end, buf));
4054         }
4055 }
4056
4057
4058 void Buffer::setBuffersForInsets() const
4059 {
4060         inset().setBuffer(const_cast<Buffer &>(*this));
4061 }
4062
4063
4064 void Buffer::updateBuffer(UpdateScope scope, UpdateType utype) const
4065 {
4066         // Use the master text class also for child documents
4067         Buffer const * const master = masterBuffer();
4068         DocumentClass const & textclass = master->params().documentClass();
4069
4070         // do this only if we are the top-level Buffer
4071         if (master == this)
4072                 reloadBibInfoCache();
4073
4074         // keep the buffers to be children in this set. If the call from the
4075         // master comes back we can see which of them were actually seen (i.e.
4076         // via an InsetInclude). The remaining ones in the set need still be updated.
4077         static std::set<Buffer const *> bufToUpdate;
4078         if (scope == UpdateMaster) {
4079                 // If this is a child document start with the master
4080                 if (master != this) {
4081                         bufToUpdate.insert(this);
4082                         master->updateBuffer(UpdateMaster, utype);
4083                         // Do this here in case the master has no gui associated with it. Then,
4084                         // the TocModel is not updated and TocModel::toc_ is invalid (bug 5699).
4085                         if (!master->d->gui_)
4086                                 structureChanged();
4087
4088                         // was buf referenced from the master (i.e. not in bufToUpdate anymore)?
4089                         if (bufToUpdate.find(this) == bufToUpdate.end())
4090                                 return;
4091                 }
4092
4093                 // start over the counters in the master
4094                 textclass.counters().reset();
4095         }
4096
4097         // update will be done below for this buffer
4098         bufToUpdate.erase(this);
4099
4100         // update all caches
4101         clearReferenceCache();
4102         updateMacros();
4103
4104         Buffer & cbuf = const_cast<Buffer &>(*this);
4105
4106         LASSERT(!text().paragraphs().empty(), /**/);
4107
4108         // do the real work
4109         ParIterator parit = cbuf.par_iterator_begin();
4110         updateBuffer(parit, utype);
4111
4112         if (master != this)
4113                 // TocBackend update will be done later.
4114                 return;
4115
4116         d->bibinfo_cache_valid_ = true;
4117         d->cite_labels_valid_ = true;
4118         cbuf.tocBackend().update();
4119         if (scope == UpdateMaster)
4120                 cbuf.structureChanged();
4121 }
4122
4123
4124 static depth_type getDepth(DocIterator const & it)
4125 {
4126         depth_type depth = 0;
4127         for (size_t i = 0 ; i < it.depth() ; ++i)
4128                 if (!it[i].inset().inMathed())
4129                         depth += it[i].paragraph().getDepth() + 1;
4130         // remove 1 since the outer inset does not count
4131         return depth - 1;
4132 }
4133
4134 static depth_type getItemDepth(ParIterator const & it)
4135 {
4136         Paragraph const & par = *it;
4137         LabelType const labeltype = par.layout().labeltype;
4138
4139         if (labeltype != LABEL_ENUMERATE && labeltype != LABEL_ITEMIZE)
4140                 return 0;
4141
4142         // this will hold the lowest depth encountered up to now.
4143         depth_type min_depth = getDepth(it);
4144         ParIterator prev_it = it;
4145         while (true) {
4146                 if (prev_it.pit())
4147                         --prev_it.top().pit();
4148                 else {
4149                         // start of nested inset: go to outer par
4150                         prev_it.pop_back();
4151                         if (prev_it.empty()) {
4152                                 // start of document: nothing to do
4153                                 return 0;
4154                         }
4155                 }
4156
4157                 // We search for the first paragraph with same label
4158                 // that is not more deeply nested.
4159                 Paragraph & prev_par = *prev_it;
4160                 depth_type const prev_depth = getDepth(prev_it);
4161                 if (labeltype == prev_par.layout().labeltype) {
4162                         if (prev_depth < min_depth)
4163                                 return prev_par.itemdepth + 1;
4164                         if (prev_depth == min_depth)
4165                                 return prev_par.itemdepth;
4166                 }
4167                 min_depth = min(min_depth, prev_depth);
4168                 // small optimization: if we are at depth 0, we won't
4169                 // find anything else
4170                 if (prev_depth == 0)
4171                         return 0;
4172         }
4173 }
4174
4175
4176 static bool needEnumCounterReset(ParIterator const & it)
4177 {
4178         Paragraph const & par = *it;
4179         LASSERT(par.layout().labeltype == LABEL_ENUMERATE, /**/);
4180         depth_type const cur_depth = par.getDepth();
4181         ParIterator prev_it = it;
4182         while (prev_it.pit()) {
4183                 --prev_it.top().pit();
4184                 Paragraph const & prev_par = *prev_it;
4185                 if (prev_par.getDepth() <= cur_depth)
4186                         return  prev_par.layout().labeltype != LABEL_ENUMERATE;
4187         }
4188         // start of nested inset: reset
4189         return true;
4190 }
4191
4192
4193 // set the label of a paragraph. This includes the counters.
4194 void Buffer::Impl::setLabel(ParIterator & it, UpdateType utype) const
4195 {
4196         BufferParams const & bp = owner_->masterBuffer()->params();
4197         DocumentClass const & textclass = bp.documentClass();
4198         Paragraph & par = it.paragraph();
4199         Layout const & layout = par.layout();
4200         Counters & counters = textclass.counters();
4201
4202         if (par.params().startOfAppendix()) {
4203                 // FIXME: only the counter corresponding to toplevel
4204                 // sectioning should be reset
4205                 counters.reset();
4206                 counters.appendix(true);
4207         }
4208         par.params().appendix(counters.appendix());
4209
4210         // Compute the item depth of the paragraph
4211         par.itemdepth = getItemDepth(it);
4212
4213         if (layout.margintype == MARGIN_MANUAL) {
4214                 if (par.params().labelWidthString().empty())
4215                         par.params().labelWidthString(par.expandLabel(layout, bp));
4216         } else if (layout.latextype == LATEX_BIB_ENVIRONMENT) {
4217                 // we do not need to do anything here, since the empty case is
4218                 // handled during export.
4219         } else {
4220                 par.params().labelWidthString(docstring());
4221         }
4222
4223         switch(layout.labeltype) {
4224         case LABEL_COUNTER:
4225                 if (layout.toclevel <= bp.secnumdepth
4226                       && (layout.latextype != LATEX_ENVIRONMENT
4227                           || it.text()->isFirstInSequence(it.pit()))) {
4228                         if (counters.hasCounter(layout.counter))
4229                                 counters.step(layout.counter, utype);
4230                         par.params().labelString(par.expandLabel(layout, bp));
4231                 } else
4232                         par.params().labelString(docstring());
4233                 break;
4234
4235         case LABEL_ITEMIZE: {
4236                 // At some point of time we should do something more
4237                 // clever here, like:
4238                 //   par.params().labelString(
4239                 //    bp.user_defined_bullet(par.itemdepth).getText());
4240                 // for now, use a simple hardcoded label
4241                 docstring itemlabel;
4242                 switch (par.itemdepth) {
4243                 case 0:
4244                         itemlabel = char_type(0x2022);
4245                         break;
4246                 case 1:
4247                         itemlabel = char_type(0x2013);
4248                         break;
4249                 case 2:
4250                         itemlabel = char_type(0x2217);
4251                         break;
4252                 case 3:
4253                         itemlabel = char_type(0x2219); // or 0x00b7
4254                         break;
4255                 }
4256                 par.params().labelString(itemlabel);
4257                 break;
4258         }
4259
4260         case LABEL_ENUMERATE: {
4261                 docstring enumcounter = layout.counter.empty() ? from_ascii("enum") : layout.counter;
4262
4263                 switch (par.itemdepth) {
4264                 case 2:
4265                         enumcounter += 'i';
4266                 case 1:
4267                         enumcounter += 'i';
4268                 case 0:
4269                         enumcounter += 'i';
4270                         break;
4271                 case 3:
4272                         enumcounter += "iv";
4273                         break;
4274                 default:
4275                         // not a valid enumdepth...
4276                         break;
4277                 }
4278
4279                 // Maybe we have to reset the enumeration counter.
4280                 if (needEnumCounterReset(it))
4281                         counters.reset(enumcounter);
4282                 counters.step(enumcounter, utype);
4283
4284                 string const & lang = par.getParLanguage(bp)->code();
4285                 par.params().labelString(counters.theCounter(enumcounter, lang));
4286
4287                 break;
4288         }
4289
4290         case LABEL_SENSITIVE: {
4291                 string const & type = counters.current_float();
4292                 docstring full_label;
4293                 if (type.empty())
4294                         full_label = owner_->B_("Senseless!!! ");
4295                 else {
4296                         docstring name = owner_->B_(textclass.floats().getType(type).name());
4297                         if (counters.hasCounter(from_utf8(type))) {
4298                                 string const & lang = par.getParLanguage(bp)->code();
4299                                 counters.step(from_utf8(type), utype);
4300                                 full_label = bformat(from_ascii("%1$s %2$s:"),
4301                                                      name,
4302                                                      counters.theCounter(from_utf8(type), lang));
4303                         } else
4304                                 full_label = bformat(from_ascii("%1$s #:"), name);
4305                 }
4306                 par.params().labelString(full_label);
4307                 break;
4308         }
4309
4310         case LABEL_NO_LABEL:
4311                 par.params().labelString(docstring());
4312                 break;
4313
4314         case LABEL_MANUAL:
4315         case LABEL_TOP_ENVIRONMENT:
4316         case LABEL_CENTERED_TOP_ENVIRONMENT:
4317         case LABEL_STATIC:
4318         case LABEL_BIBLIO:
4319                 par.params().labelString(par.expandLabel(layout, bp));
4320                 break;
4321         }
4322 }
4323
4324
4325 void Buffer::updateBuffer(ParIterator & parit, UpdateType utype) const
4326 {
4327         LASSERT(parit.pit() == 0, /**/);
4328
4329         // Set the position of the text in the buffer to be able
4330         // to resolve macros in it.
4331         parit.text()->setMacrocontextPosition(parit);
4332
4333         depth_type maxdepth = 0;
4334         pit_type const lastpit = parit.lastpit();
4335         for ( ; parit.pit() <= lastpit ; ++parit.pit()) {
4336                 // reduce depth if necessary
4337                 parit->params().depth(min(parit->params().depth(), maxdepth));
4338                 maxdepth = parit->getMaxDepthAfter();
4339
4340                 if (utype == OutputUpdate) {
4341                         // track the active counters
4342                         // we have to do this for the master buffer, since the local
4343                         // buffer isn't tracking anything.
4344                         masterBuffer()->params().documentClass().counters().
4345                                         setActiveLayout(parit->layout());
4346                 }
4347
4348                 // set the counter for this paragraph
4349                 d->setLabel(parit, utype);
4350
4351                 // now the insets
4352                 InsetList::const_iterator iit = parit->insetList().begin();
4353                 InsetList::const_iterator end = parit->insetList().end();
4354                 for (; iit != end; ++iit) {
4355                         parit.pos() = iit->pos;
4356                         iit->inset->updateBuffer(parit, utype);
4357                 }
4358         }
4359 }
4360
4361
4362 int Buffer::spellCheck(DocIterator & from, DocIterator & to,
4363         WordLangTuple & word_lang, docstring_list & suggestions) const
4364 {
4365         int progress = 0;
4366         WordLangTuple wl;
4367         suggestions.clear();
4368         word_lang = WordLangTuple();
4369         bool const to_end = to.empty();
4370         DocIterator const end = to_end ? doc_iterator_end(this) : to;
4371         // OK, we start from here.
4372         for (; from != end; from.forwardPos()) {
4373                 // We are only interested in text so remove the math CursorSlice.
4374                 while (from.inMathed()) {
4375                         from.pop_back();
4376                         from.pos()++;
4377                 }
4378                 // If from is at the end of the document (which is possible
4379                 // when leaving the mathed) LyX will crash later otherwise.
4380                 if (from.atEnd() || (!to_end && from >= end))
4381                         break;
4382                 to = from;
4383                 from.paragraph().spellCheck();
4384                 SpellChecker::Result res = from.paragraph().spellCheck(from.pos(), to.pos(), wl, suggestions);
4385                 if (SpellChecker::misspelled(res)) {
4386                         word_lang = wl;
4387                         break;
4388                 }
4389
4390                 // Do not increase progress when from == to, otherwise the word
4391                 // count will be wrong.
4392                 if (from != to) {
4393                         from = to;
4394                         ++progress;
4395                 }
4396         }
4397         return progress;
4398 }
4399
4400
4401 Buffer::ReadStatus Buffer::reload()
4402 {
4403         setBusy(true);
4404         // c.f. bug http://www.lyx.org/trac/ticket/6587
4405         removeAutosaveFile();
4406         // e.g., read-only status could have changed due to version control
4407         d->filename.refresh();
4408         docstring const disp_fn = makeDisplayPath(d->filename.absFileName());
4409
4410         ReadStatus const status = loadLyXFile();
4411         if (status == ReadSuccess) {
4412                 updateBuffer();
4413                 changed(true);
4414                 updateTitles();
4415                 markClean();
4416                 message(bformat(_("Document %1$s reloaded."), disp_fn));
4417                 d->undo_.clear();
4418         } else {
4419                 message(bformat(_("Could not reload document %1$s."), disp_fn));
4420         }
4421         setBusy(false);
4422         removePreviews();
4423         updatePreviews();
4424         errors("Parse");
4425         return status;
4426 }
4427
4428
4429 bool Buffer::saveAs(FileName const & fn)
4430 {
4431         FileName const old_name = fileName();
4432         FileName const old_auto = getAutosaveFileName();
4433         bool const old_unnamed = isUnnamed();
4434
4435         setFileName(fn);
4436         markDirty();
4437         setUnnamed(false);
4438
4439         if (save()) {
4440                 // bring the autosave file with us, just in case.
4441                 moveAutosaveFile(old_auto);
4442                 // validate version control data and
4443                 // correct buffer title
4444                 lyxvc().file_found_hook(fileName());
4445                 updateTitles();
4446                 // the file has now been saved to the new location.
4447                 // we need to check that the locations of child buffers
4448                 // are still valid.
4449                 checkChildBuffers();
4450                 return true;
4451         } else {
4452                 // save failed
4453                 // reset the old filename and unnamed state
4454                 setFileName(old_name);
4455                 setUnnamed(old_unnamed);
4456                 return false;
4457         }
4458 }
4459
4460
4461 // FIXME We could do better here, but it is complicated. What would be
4462 // nice is to offer either (a) to save the child buffer to an appropriate
4463 // location, so that it would "move with the master", or else (b) to update
4464 // the InsetInclude so that it pointed to the same file. But (a) is a bit
4465 // complicated, because the code for this lives in GuiView.
4466 void Buffer::checkChildBuffers()
4467 {
4468         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
4469         Impl::BufferPositionMap::iterator const en = d->children_positions.end();
4470         for (; it != en; ++it) {
4471                 DocIterator dit = it->second;
4472                 Buffer * cbuf = const_cast<Buffer *>(it->first);
4473                 if (!cbuf || !theBufferList().isLoaded(cbuf))
4474                         continue;
4475                 Inset * inset = dit.nextInset();
4476                 LASSERT(inset && inset->lyxCode() == INCLUDE_CODE, continue);
4477                 InsetInclude * inset_inc = static_cast<InsetInclude *>(inset);
4478                 docstring const & incfile = inset_inc->getParam("filename");
4479                 string oldloc = cbuf->absFileName();
4480                 string newloc = makeAbsPath(to_utf8(incfile),
4481                                 onlyPath(absFileName())).absFileName();
4482                 if (oldloc == newloc)
4483                         continue;
4484                 // the location of the child file is incorrect.
4485                 Alert::warning(_("Included File Invalid"),
4486                                 bformat(_("Saving this document to a new location has made the file:\n"
4487                                 "  %1$s\n"
4488                                 "inaccessible. You will need to update the included filename."),
4489                                 from_utf8(oldloc)));
4490                 cbuf->setParent(0);
4491                 inset_inc->setChildBuffer(0);
4492         }
4493         // invalidate cache of children
4494         d->children_positions.clear();
4495         d->position_to_children.clear();
4496 }
4497
4498 } // namespace lyx