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 "Cursor.h"
  28 #include "CutAndPaste.h"
  29 #include "DispatchResult.h"
  30 #include "DocIterator.h"
  31 #include "BufferEncodings.h"
  32 #include "ErrorList.h"
  33 #include "Exporter.h"
  34 #include "Format.h"
  35 #include "FuncRequest.h"
  36 #include "FuncStatus.h"
  37 #include "IndicesList.h"
  38 #include "InsetIterator.h"
  39 #include "InsetList.h"
  40 #include "Language.h"
  41 #include "LaTeXFeatures.h"
  42 #include "LaTeX.h"
  43 #include "Layout.h"
  44 #include "Lexer.h"
  45 #include "LyXAction.h"
  46 #include "LyX.h"
  47 #include "LyXRC.h"
  48 #include "LyXVC.h"
  49 #include "output_docbook.h"
  50 #include "output.h"
  51 #include "output_latex.h"
  52 #include "output_xhtml.h"
  53 #include "output_plaintext.h"
  54 #include "Paragraph.h"
  55 #include "ParagraphParameters.h"
  56 #include "ParIterator.h"
  57 #include "PDFOptions.h"
  58 #include "SpellChecker.h"
  59 #include "sgml.h"
  60 #include "TexRow.h"
  61 #include "Text.h"
  62 #include "TextClass.h"
  63 #include "TocBackend.h"
  64 #include "Undo.h"
  65 #include "VCBackend.h"
  66 #include "version.h"
  67 #include "WordLangTuple.h"
  68 #include "WordList.h"
  69
  70 #include "insets/InsetBibtex.h"
  71 #include "insets/InsetBranch.h"
  72 #include "insets/InsetInclude.h"
  73 #include "insets/InsetTabular.h"
  74 #include "insets/InsetText.h"
  75
  76 #include "mathed/InsetMathHull.h"
  77 #include "mathed/MacroTable.h"
  78 #include "mathed/MathMacroTemplate.h"
  79 #include "mathed/MathSupport.h"
  80
  81 #include "graphics/PreviewLoader.h"
  82
  83 #include "frontends/alert.h"
  84 #include "frontends/Delegates.h"
  85 #include "frontends/WorkAreaManager.h"
  86
  87 #include "support/lassert.h"
  88 #include "support/convert.h"
  89 #include "support/debug.h"
  90 #include "support/docstring_list.h"
  91 #include "support/ExceptionMessage.h"
  92 #include "support/FileName.h"
  93 #include "support/FileNameList.h"
  94 #include "support/filetools.h"
  95 #include "support/ForkedCalls.h"
  96 #include "support/gettext.h"
  97 #include "support/gzstream.h"
  98 #include "support/lstrings.h"
  99 #include "support/lyxalgo.h"
 100 #include "support/mutex.h"
 101 #include "support/os.h"
 102 #include "support/Package.h"
 103 #include "support/PathChanger.h"
 104 #include "support/Systemcall.h"
 105 #include "support/TempFile.h"
 106 #include "support/textutils.h"
 107 #include "support/types.h"
 108
 109 #include "support/bind.h"
 110 #include "support/shared_ptr.h"
 111
 112 #include <algorithm>
 113 #include <fstream>
 114 #include <iomanip>
 115 #include <map>
 116 #include <set>
 117 #include <sstream>
 118 #include <vector>
 119
 120 using namespace std;
 121 using namespace lyx::support;
 122 using namespace lyx::graphics;
 123
 124 namespace lyx {
 125
 126 namespace Alert = frontend::Alert;
 127 namespace os = support::os;
 128
 129 namespace {
 130
 131 int const LYX_FORMAT = LYX_FORMAT_LYX;
 132
 133 typedef map<string, bool> DepClean;
 134 typedef map<docstring, pair<InsetLabel const *, Buffer::References> > RefCache;
 135
 136 } // namespace anon
 137
 138
 139 // A storehouse for the cloned buffers.
 140 list<CloneList *> cloned_buffers;
 141
 142
 143 class Buffer::Impl
 144 {
 145 public:
 146         Impl(Buffer * owner, FileName const & file, bool readonly, Buffer const * cloned_buffer);
 147
 148         ~Impl()
 149         {
 150                 delete preview_loader_;
 151                 if (wa_) {
 152                         wa_->closeAll();
 153                         delete wa_;
 154                 }
 155                 delete inset;
 156         }
 157
 158         /// search for macro in local (buffer) table or in children
 159         MacroData const * getBufferMacro(docstring const & name,
 160                 DocIterator const & pos) const;
 161
 162         /// Update macro table starting with position of it \param it in some
 163         /// text inset.
 164         void updateMacros(DocIterator & it, DocIterator & scope);
 165         ///
 166         void setLabel(ParIterator & it, UpdateType utype) const;
 167
 168         /** If we have branches that use the file suffix
 169             feature, return the file name with suffix appended.
 170         */
 171         support::FileName exportFileName() const;
 172
 173         Buffer * owner_;
 174
 175         BufferParams params;
 176         LyXVC lyxvc;
 177         FileName temppath;
 178         mutable TexRow texrow;
 179
 180         /// need to regenerate .tex?
 181         DepClean dep_clean;
 182
 183         /// is save needed?
 184         mutable bool lyx_clean;
 185
 186         /// is autosave needed?
 187         mutable bool bak_clean;
 188
 189         /// is this an unnamed file (New...)?
 190         bool unnamed;
 191
 192         /// is this an internal bufffer?
 193         bool internal_buffer;
 194
 195         /// buffer is r/o
 196         bool read_only;
 197
 198         /// name of the file the buffer is associated with.
 199         FileName filename;
 200
 201         /** Set to true only when the file is fully loaded.
 202          *  Used to prevent the premature generation of previews
 203          *  and by the citation inset.
 204          */
 205         bool file_fully_loaded;
 206
 207         /// Ignore the parent (e.g. when exporting a child standalone)?
 208         bool ignore_parent;
 209
 210         ///
 211         mutable TocBackend toc_backend;
 212
 213         /// macro tables
 214         struct ScopeMacro {
 215                 ScopeMacro() {}
 216                 ScopeMacro(DocIterator const & s, MacroData const & m)
 217                         : scope(s), macro(m) {}
 218                 DocIterator scope;
 219                 MacroData macro;
 220         };
 221         typedef map<DocIterator, ScopeMacro> PositionScopeMacroMap;
 222         typedef map<docstring, PositionScopeMacroMap> NamePositionScopeMacroMap;
 223         /// map from the macro name to the position map,
 224         /// which maps the macro definition position to the scope and the MacroData.
 225         NamePositionScopeMacroMap macros;
 226         /// This seem to change the way Buffer::getMacro() works
 227         mutable bool macro_lock;
 228
 229         /// positions of child buffers in the buffer
 230         typedef map<Buffer const * const, DocIterator> BufferPositionMap;
 231         struct ScopeBuffer {
 232                 ScopeBuffer() {}
 233                 ScopeBuffer(DocIterator const & s,Buffer const * b)
 234                         : scope(s), buffer(b) {}
 235                 DocIterator scope;
 236                 Buffer const * buffer;
 237         };
 238         typedef map<DocIterator, ScopeBuffer> PositionScopeBufferMap;
 239         /// position of children buffers in this buffer
 240         BufferPositionMap children_positions;
 241         /// map from children inclusion positions to their scope and their buffer
 242         PositionScopeBufferMap position_to_children;
 243
 244         /// Contains the old buffer filePath() while saving-as, or the
 245         /// directory where the document was last saved while loading.
 246         string old_position;
 247
 248         /** Keeps track of the path of local layout files.
 249          *  If possible, it is always relative to the buffer path.
 250          *  Empty for layouts in system or user directory.
 251          */
 252         string layout_position;
 253
 254         /// Container for all sort of Buffer dependant errors.
 255         map<string, ErrorList> errorLists;
 256
 257         /// timestamp and checksum used to test if the file has been externally
 258         /// modified. (Used to properly enable 'File->Revert to saved', bug 4114).
 259         time_t timestamp_;
 260         unsigned long checksum_;
 261
 262         ///
 263         frontend::WorkAreaManager * wa_;
 264         ///
 265         frontend::GuiBufferDelegate * gui_;
 266
 267         ///
 268         Undo undo_;
 269
 270         /// A cache for the bibfiles (including bibfiles of loaded child
 271         /// documents), needed for appropriate update of natbib labels.
 272         mutable support::FileNameList bibfiles_cache_;
 273
 274         // FIXME The caching mechanism could be improved. At present, we have a
 275         // cache for each Buffer, that caches all the bibliography info for that
 276         // Buffer. A more efficient solution would be to have a global cache per
 277         // file, and then to construct the Buffer's bibinfo from that.
 278         /// A cache for bibliography info
 279         mutable BiblioInfo bibinfo_;
 280         /// whether the bibinfo cache is valid
 281         mutable bool bibinfo_cache_valid_;
 282         /// whether the bibfile cache is valid
 283         mutable bool bibfile_cache_valid_;
 284         /// Cache of timestamps of .bib files
 285         map<FileName, time_t> bibfile_status_;
 286         /// Indicates whether the bibinfo has changed since the last time
 287         /// we ran updateBuffer(), i.e., whether citation labels may need
 288         /// to be updated.
 289         mutable bool cite_labels_valid_;
 290
 291         /// These two hold the file name and format, written to by
 292         /// Buffer::preview and read from by LFUN_BUFFER_VIEW_CACHE.
 293         FileName preview_file_;
 294         string preview_format_;
 295         /// If there was an error when previewing, on the next preview we do
 296         /// a fresh compile (e.g. in case the user installed a package that
 297         /// was missing).
 298         bool preview_error_;
 299
 300         mutable RefCache ref_cache_;
 301
 302         /// our Text that should be wrapped in an InsetText
 303         InsetText * inset;
 304
 305         ///
 306         PreviewLoader * preview_loader_;
 307
 308         /// This is here to force the test to be done whenever parent_buffer
 309         /// is accessed.
 310         Buffer const * parent() const
 311         {
 312                 // ignore_parent temporarily "orphans" a buffer
 313                 // (e.g. if a child is compiled standalone)
 314                 if (ignore_parent)
 315                         return 0;
 316                 // if parent_buffer is not loaded, then it has been unloaded,
 317                 // which means that parent_buffer is an invalid pointer. So we
 318                 // set it to null in that case.
 319                 // however, the BufferList doesn't know about cloned buffers, so
 320                 // they will always be regarded as unloaded. in that case, we hope
 321                 // for the best.
 322                 if (!cloned_buffer_ && !theBufferList().isLoaded(parent_buffer))
 323                         parent_buffer = 0;
 324                 return parent_buffer;
 325         }
 326
 327         ///
 328         void setParent(Buffer const * pb)
 329         {
 330                 if (parent_buffer == pb)
 331                         // nothing to do
 332                         return;
 333                 if (!cloned_buffer_ && parent_buffer && pb)
 334                         LYXERR0("Warning: a buffer should not have two parents!");
 335                 parent_buffer = pb;
 336                 if (!cloned_buffer_ && parent_buffer) {
 337                         parent_buffer->invalidateBibfileCache();
 338                         parent_buffer->invalidateBibinfoCache();
 339                 }
 340         }
 341
 342         /// If non zero, this buffer is a clone of existing buffer \p cloned_buffer_
 343         /// This one is useful for preview detached in a thread.
 344         Buffer const * cloned_buffer_;
 345         ///
 346         CloneList * clone_list_;
 347         /// are we in the process of exporting this buffer?
 348         mutable bool doing_export;
 349
 350         /// compute statistics
 351         /// \p from initial position
 352         /// \p to points to the end position
 353         void updateStatistics(DocIterator & from, DocIterator & to,
 354                               bool skipNoOutput = true);
 355         /// statistics accessor functions
 356         int wordCount() const
 357         {
 358                 return word_count_;
 359         }
 360         int charCount(bool with_blanks) const
 361         {
 362                 return char_count_
 363                 + (with_blanks ? blank_count_ : 0);
 364         }
 365
 366 private:
 367         /// So we can force access via the accessors.
 368         mutable Buffer const * parent_buffer;
 369
 370         int word_count_;
 371         int char_count_;
 372         int blank_count_;
 373
 374 };
 375
 376
 377 /// Creates the per buffer temporary directory
 378 static FileName createBufferTmpDir()
 379 {
 380         // FIXME This would be the ideal application for a TempDir class (like
 381         //       TempFile but for directories)
 382         string counter;
 383         {
 384                 static int count;
 385                 static Mutex mutex;
 386                 Mutex::Locker locker(&mutex);
 387                 counter = convert<string>(count++);
 388         }
 389         // We are in our own directory.  Why bother to mangle name?
 390         // In fact I wrote this code to circumvent a problematic behaviour
 391         // (bug?) of EMX mkstemp().
 392         FileName tmpfl(package().temp_dir().absFileName() + "/lyx_tmpbuf" +
 393                 counter);
 394
 395         if (!tmpfl.createDirectory(0777)) {
 396                 throw ExceptionMessage(WarningException, _("Disk Error: "), bformat(
 397                         _("LyX could not create the temporary directory '%1$s' (Disk is full maybe?)"),
 398                         from_utf8(tmpfl.absFileName())));
 399         }
 400         return tmpfl;
 401 }
 402
 403
 404 Buffer::Impl::Impl(Buffer * owner, FileName const & file, bool readonly_,
 405         Buffer const * cloned_buffer)
 406         : owner_(owner), lyx_clean(true), bak_clean(true), unnamed(false),
 407           internal_buffer(false), read_only(readonly_), filename(file),
 408           file_fully_loaded(false), ignore_parent(false), toc_backend(owner),
 409           macro_lock(false), timestamp_(0), checksum_(0), wa_(0), gui_(0),
 410           undo_(*owner), bibinfo_cache_valid_(false), bibfile_cache_valid_(false),
 411           cite_labels_valid_(false), inset(0), preview_loader_(0),
 412           cloned_buffer_(cloned_buffer), clone_list_(0),
 413           doing_export(false), parent_buffer(0),
 414           word_count_(0), char_count_(0), blank_count_(0)
 415 {
 416         if (!cloned_buffer_) {
 417                 temppath = createBufferTmpDir();
 418                 lyxvc.setBuffer(owner_);
 419                 if (use_gui)
 420                         wa_ = new frontend::WorkAreaManager;
 421                 return;
 422         }
 423         temppath = cloned_buffer_->d->temppath;
 424         file_fully_loaded = true;
 425         params = cloned_buffer_->d->params;
 426         bibfiles_cache_ = cloned_buffer_->d->bibfiles_cache_;
 427         bibinfo_ = cloned_buffer_->d->bibinfo_;
 428         bibinfo_cache_valid_ = cloned_buffer_->d->bibinfo_cache_valid_;
 429         bibfile_cache_valid_ = cloned_buffer_->d->bibfile_cache_valid_;
 430         bibfile_status_ = cloned_buffer_->d->bibfile_status_;
 431         cite_labels_valid_ = cloned_buffer_->d->cite_labels_valid_;
 432         unnamed = cloned_buffer_->d->unnamed;
 433         internal_buffer = cloned_buffer_->d->internal_buffer;
 434         layout_position = cloned_buffer_->d->layout_position;
 435         preview_file_ = cloned_buffer_->d->preview_file_;
 436         preview_format_ = cloned_buffer_->d->preview_format_;
 437         preview_error_ = cloned_buffer_->d->preview_error_;
 438 }
 439
 440
 441 Buffer::Buffer(string const & file, bool readonly, Buffer const * cloned_buffer)
 442         : d(new Impl(this, FileName(file), readonly, cloned_buffer))
 443 {
 444         LYXERR(Debug::INFO, "Buffer::Buffer()");
 445         if (cloned_buffer) {
 446                 d->inset = new InsetText(*cloned_buffer->d->inset);
 447                 d->inset->setBuffer(*this);
 448                 // FIXME: optimize this loop somewhat, maybe by creating a new
 449                 // general recursive Inset::setId().
 450                 DocIterator it = doc_iterator_begin(this);
 451                 DocIterator cloned_it = doc_iterator_begin(cloned_buffer);
 452                 for (; !it.atEnd(); it.forwardPar(), cloned_it.forwardPar())
 453                         it.paragraph().setId(cloned_it.paragraph().id());
 454         } else
 455                 d->inset = new InsetText(this);
 456         d->inset->getText(0)->setMacrocontextPosition(par_iterator_begin());
 457 }
 458
 459
 460 Buffer::~Buffer()
 461 {
 462         LYXERR(Debug::INFO, "Buffer::~Buffer()");
 463         // here the buffer should take care that it is
 464         // saved properly, before it goes into the void.
 465
 466         // GuiView already destroyed
 467         d->gui_ = 0;
 468
 469         if (isInternal()) {
 470                 // No need to do additional cleanups for internal buffer.
 471                 delete d;
 472                 return;
 473         }
 474
 475         if (isClone()) {
 476                 // this is in case of recursive includes: we won't try to delete
 477                 // ourselves as a child.
 478                 d->clone_list_->erase(this);
 479                 // loop over children
 480                 Impl::BufferPositionMap::iterator it = d->children_positions.begin();
 481                 Impl::BufferPositionMap::iterator end = d->children_positions.end();
 482                 for (; it != end; ++it) {
 483                         Buffer * child = const_cast<Buffer *>(it->first);
 484                                 if (d->clone_list_->erase(child))
 485                                         delete child;
 486                 }
 487                 // if we're the master buffer, then we should get rid of the list
 488                 // of clones
 489                 if (!parent()) {
 490                         // If this is not empty, we have leaked something. Worse, one of the
 491                         // children still has a reference to this list. But we will try to
 492                         // continue, rather than shut down.
 493                         LATTEST(d->clone_list_->empty());
 494                         list<CloneList *>::iterator it =
 495                                 find(cloned_buffers.begin(), cloned_buffers.end(), d->clone_list_);
 496                         if (it == cloned_buffers.end()) {
 497                                 // We will leak in this case, but it is safe to continue.
 498                                 LATTEST(false);
 499                         } else
 500                                 cloned_buffers.erase(it);
 501                         delete d->clone_list_;
 502                 }
 503                 // FIXME Do we really need to do this right before we delete d?
 504                 // clear references to children in macro tables
 505                 d->children_positions.clear();
 506                 d->position_to_children.clear();
 507         } else {
 508                 // loop over children
 509                 Impl::BufferPositionMap::iterator it = d->children_positions.begin();
 510                 Impl::BufferPositionMap::iterator end = d->children_positions.end();
 511                 for (; it != end; ++it) {
 512                         Buffer * child = const_cast<Buffer *>(it->first);
 513                         if (theBufferList().isLoaded(child))
 514                                 theBufferList().releaseChild(this, child);
 515                 }
 516
 517                 if (!isClean()) {
 518                         docstring msg = _("LyX attempted to close a document that had unsaved changes!\n");
 519                         msg += emergencyWrite();
 520                         Alert::warning(_("Attempting to close changed document!"), msg);
 521                 }
 522
 523                 // FIXME Do we really need to do this right before we delete d?
 524                 // clear references to children in macro tables
 525                 d->children_positions.clear();
 526                 d->position_to_children.clear();
 527
 528                 if (!d->temppath.destroyDirectory()) {
 529                         Alert::warning(_("Could not remove temporary directory"),
 530                                 bformat(_("Could not remove the temporary directory %1$s"),
 531                                 from_utf8(d->temppath.absFileName())));
 532                 }
 533                 removePreviews();
 534         }
 535
 536         delete d;
 537 }
 538
 539
 540 Buffer * Buffer::cloneFromMaster() const
 541 {
 542         BufferMap bufmap;
 543         cloned_buffers.push_back(new CloneList);
 544         CloneList * clones = cloned_buffers.back();
 545
 546         masterBuffer()->cloneWithChildren(bufmap, clones);
 547
 548         // make sure we got cloned
 549         BufferMap::const_iterator bit = bufmap.find(this);
 550         LASSERT(bit != bufmap.end(), return 0);
 551         Buffer * cloned_buffer = bit->second;
 552
 553         return cloned_buffer;
 554 }
 555
 556
 557 void Buffer::cloneWithChildren(BufferMap & bufmap, CloneList * clones) const
 558 {
 559         // have we already been cloned?
 560         if (bufmap.find(this) != bufmap.end())
 561                 return;
 562
 563         Buffer * buffer_clone = new Buffer(fileName().absFileName(), false, this);
 564
 565         // The clone needs its own DocumentClass, since running updateBuffer() will
 566         // modify it, and we would otherwise be sharing it with the original Buffer.
 567         buffer_clone->params().makeDocumentClass(true);
 568         ErrorList el;
 569         cap::switchBetweenClasses(
 570                         params().documentClassPtr(), buffer_clone->params().documentClassPtr(),
 571                         static_cast<InsetText &>(buffer_clone->inset()), el);
 572
 573         bufmap[this] = buffer_clone;
 574         clones->insert(buffer_clone);
 575         buffer_clone->d->clone_list_ = clones;
 576         buffer_clone->d->macro_lock = true;
 577         buffer_clone->d->children_positions.clear();
 578
 579         // FIXME (Abdel 09/01/2010): this is too complicated. The whole children_positions and
 580         // math macro caches need to be rethought and simplified.
 581         // I am not sure wether we should handle Buffer cloning here or in BufferList.
 582         // Right now BufferList knows nothing about buffer clones.
 583         Impl::PositionScopeBufferMap::iterator it = d->position_to_children.begin();
 584         Impl::PositionScopeBufferMap::iterator end = d->position_to_children.end();
 585         for (; it != end; ++it) {
 586                 DocIterator dit = it->first.clone(buffer_clone);
 587                 dit.setBuffer(buffer_clone);
 588                 Buffer * child = const_cast<Buffer *>(it->second.buffer);
 589
 590                 child->cloneWithChildren(bufmap, clones);
 591                 BufferMap::iterator const bit = bufmap.find(child);
 592                 LASSERT(bit != bufmap.end(), continue);
 593                 Buffer * child_clone = bit->second;
 594
 595                 Inset * inset = dit.nextInset();
 596                 LASSERT(inset && inset->lyxCode() == INCLUDE_CODE, continue);
 597                 InsetInclude * inset_inc = static_cast<InsetInclude *>(inset);
 598                 inset_inc->setChildBuffer(child_clone);
 599                 child_clone->d->setParent(buffer_clone);
 600                 // FIXME Do we need to do this now, or can we wait until we run updateMacros()?
 601                 buffer_clone->setChild(dit, child_clone);
 602         }
 603         buffer_clone->d->macro_lock = false;
 604         return;
 605 }
 606
 607
 608 Buffer * Buffer::cloneBufferOnly() const {
 609         cloned_buffers.push_back(new CloneList);
 610         CloneList * clones = cloned_buffers.back();
 611         Buffer * buffer_clone = new Buffer(fileName().absFileName(), false, this);
 612
 613         // The clone needs its own DocumentClass, since running updateBuffer() will
 614         // modify it, and we would otherwise be sharing it with the original Buffer.
 615         buffer_clone->params().makeDocumentClass(true);
 616         ErrorList el;
 617         cap::switchBetweenClasses(
 618                         params().documentClassPtr(), buffer_clone->params().documentClassPtr(),
 619                         static_cast<InsetText &>(buffer_clone->inset()), el);
 620
 621         clones->insert(buffer_clone);
 622         buffer_clone->d->clone_list_ = clones;
 623
 624         // we won't be cloning the children
 625         buffer_clone->d->children_positions.clear();
 626         return buffer_clone;
 627 }
 628
 629
 630 bool Buffer::isClone() const
 631 {
 632         return d->cloned_buffer_;
 633 }
 634
 635
 636 void Buffer::changed(bool update_metrics) const
 637 {
 638         if (d->wa_)
 639                 d->wa_->redrawAll(update_metrics);
 640 }
 641
 642
 643 frontend::WorkAreaManager & Buffer::workAreaManager() const
 644 {
 645         LBUFERR(d->wa_);
 646         return *d->wa_;
 647 }
 648
 649
 650 Text & Buffer::text() const
 651 {
 652         return d->inset->text();
 653 }
 654
 655
 656 Inset & Buffer::inset() const
 657 {
 658         return *d->inset;
 659 }
 660
 661
 662 BufferParams & Buffer::params()
 663 {
 664         return d->params;
 665 }
 666
 667
 668 BufferParams const & Buffer::params() const
 669 {
 670         return d->params;
 671 }
 672
 673
 674 BufferParams const & Buffer::masterParams() const
 675 {
 676         if (masterBuffer() == this)
 677                 return params();
 678
 679         BufferParams & mparams = const_cast<Buffer *>(masterBuffer())->params();
 680         // Copy child authors to the params. We need those pointers.
 681         AuthorList const & child_authors = params().authors();
 682         AuthorList::Authors::const_iterator it = child_authors.begin();
 683         for (; it != child_authors.end(); ++it)
 684                 mparams.authors().record(*it);
 685         return mparams;
 686 }
 687
 688
 689 double Buffer::fontScalingFactor() const
 690 {
 691         return isExporting() ? 75.0 * params().html_math_img_scale
 692                 : 0.01 * lyxrc.dpi * lyxrc.zoom * lyxrc.preview_scale_factor * params().display_pixel_ratio;
 693 }
 694
 695
 696 ParagraphList & Buffer::paragraphs()
 697 {
 698         return text().paragraphs();
 699 }
 700
 701
 702 ParagraphList const & Buffer::paragraphs() const
 703 {
 704         return text().paragraphs();
 705 }
 706
 707
 708 LyXVC & Buffer::lyxvc()
 709 {
 710         return d->lyxvc;
 711 }
 712
 713
 714 LyXVC const & Buffer::lyxvc() const
 715 {
 716         return d->lyxvc;
 717 }
 718
 719
 720 string const Buffer::temppath() const
 721 {
 722         return d->temppath.absFileName();
 723 }
 724
 725
 726 TexRow & Buffer::texrow()
 727 {
 728         return d->texrow;
 729 }
 730
 731
 732 TexRow const & Buffer::texrow() const
 733 {
 734         return d->texrow;
 735 }
 736
 737
 738 TocBackend & Buffer::tocBackend() const
 739 {
 740         return d->toc_backend;
 741 }
 742
 743
 744 Undo & Buffer::undo()
 745 {
 746         return d->undo_;
 747 }
 748
 749
 750 void Buffer::setChild(DocIterator const & dit, Buffer * child)
 751 {
 752         d->children_positions[child] = dit;
 753 }
 754
 755
 756 string Buffer::latexName(bool const no_path) const
 757 {
 758         FileName latex_name =
 759                 makeLatexName(d->exportFileName());
 760         return no_path ? latex_name.onlyFileName()
 761                 : latex_name.absFileName();
 762 }
 763
 764
 765 FileName Buffer::Impl::exportFileName() const
 766 {
 767         docstring const branch_suffix =
 768                 params.branchlist().getFileNameSuffix();
 769         if (branch_suffix.empty())
 770                 return filename;
 771
 772         string const name = filename.onlyFileNameWithoutExt()
 773                 + to_utf8(branch_suffix);
 774         FileName res(filename.onlyPath().absFileName() + "/" + name);
 775         res.changeExtension(filename.extension());
 776
 777         return res;
 778 }
 779
 780
 781 string Buffer::logName(LogType * type) const
 782 {
 783         string const filename = latexName(false);
 784
 785         if (filename.empty()) {
 786                 if (type)
 787                         *type = latexlog;
 788                 return string();
 789         }
 790
 791         string const path = temppath();
 792
 793         FileName const fname(addName(temppath(),
 794                                      onlyFileName(changeExtension(filename,
 795                                                                   ".log"))));
 796
 797         // FIXME: how do we know this is the name of the build log?
 798         FileName const bname(
 799                 addName(path, onlyFileName(
 800                         changeExtension(filename,
 801                                         formats.extension(params().bufferFormat()) + ".out"))));
 802
 803         // Also consider the master buffer log file
 804         FileName masterfname = fname;
 805         LogType mtype = latexlog;
 806         if (masterBuffer() != this) {
 807                 string const mlogfile = masterBuffer()->logName(&mtype);
 808                 masterfname = FileName(mlogfile);
 809         }
 810
 811         // If no Latex log or Build log is newer, show Build log
 812         if (bname.exists() &&
 813             ((!fname.exists() && !masterfname.exists())
 814              || (fname.lastModified() < bname.lastModified()
 815                  && masterfname.lastModified() < bname.lastModified()))) {
 816                 LYXERR(Debug::FILES, "Log name calculated as: " << bname);
 817                 if (type)
 818                         *type = buildlog;
 819                 return bname.absFileName();
 820         // If we have a newer master file log or only a master log, show this
 821         } else if (fname != masterfname
 822                    && (!fname.exists() && (masterfname.exists()
 823                    || fname.lastModified() < masterfname.lastModified()))) {
 824                 LYXERR(Debug::FILES, "Log name calculated as: " << masterfname);
 825                 if (type)
 826                         *type = mtype;
 827                 return masterfname.absFileName();
 828         }
 829         LYXERR(Debug::FILES, "Log name calculated as: " << fname);
 830         if (type)
 831                         *type = latexlog;
 832         return fname.absFileName();
 833 }
 834
 835
 836 void Buffer::setReadonly(bool const flag)
 837 {
 838         if (d->read_only != flag) {
 839                 d->read_only = flag;
 840                 changed(false);
 841         }
 842 }
 843
 844
 845 void Buffer::setFileName(FileName const & fname)
 846 {
 847         bool const changed = fname != d->filename;
 848         d->filename = fname;
 849         if (changed)
 850                 lyxvc().file_found_hook(fname);
 851         setReadonly(d->filename.isReadOnly());
 852         saveCheckSum();
 853         updateTitles();
 854 }
 855
 856
 857 int Buffer::readHeader(Lexer & lex)
 858 {
 859         int unknown_tokens = 0;
 860         int line = -1;
 861         int begin_header_line = -1;
 862
 863         // Initialize parameters that may be/go lacking in header:
 864         params().branchlist().clear();
 865         params().preamble.erase();
 866         params().options.erase();
 867         params().master.erase();
 868         params().float_placement.erase();
 869         params().paperwidth.erase();
 870         params().paperheight.erase();
 871         params().leftmargin.erase();
 872         params().rightmargin.erase();
 873         params().topmargin.erase();
 874         params().bottommargin.erase();
 875         params().headheight.erase();
 876         params().headsep.erase();
 877         params().footskip.erase();
 878         params().columnsep.erase();
 879         params().fonts_cjk.erase();
 880         params().listings_params.clear();
 881         params().clearLayoutModules();
 882         params().clearRemovedModules();
 883         params().clearIncludedChildren();
 884         params().pdfoptions().clear();
 885         params().indiceslist().clear();
 886         params().backgroundcolor = lyx::rgbFromHexName("#ffffff");
 887         params().isbackgroundcolor = false;
 888         params().fontcolor = RGBColor(0, 0, 0);
 889         params().isfontcolor = false;
 890         params().notefontcolor = RGBColor(0xCC, 0xCC, 0xCC);
 891         params().boxbgcolor = RGBColor(0xFF, 0, 0);
 892         params().html_latex_start.clear();
 893         params().html_latex_end.clear();
 894         params().html_math_img_scale = 1.0;
 895         params().output_sync_macro.erase();
 896         params().setLocalLayout(string(), false);
 897         params().setLocalLayout(string(), true);
 898
 899         for (int i = 0; i < 4; ++i) {
 900                 params().user_defined_bullet(i) = ITEMIZE_DEFAULTS[i];
 901                 params().temp_bullet(i) = ITEMIZE_DEFAULTS[i];
 902         }
 903
 904         ErrorList & errorList = d->errorLists["Parse"];
 905
 906         while (lex.isOK()) {
 907                 string token;
 908                 lex >> token;
 909
 910                 if (token.empty())
 911                         continue;
 912
 913                 if (token == "\\end_header")
 914                         break;
 915
 916                 ++line;
 917                 if (token == "\\begin_header") {
 918                         begin_header_line = line;
 919                         continue;
 920                 }
 921
 922                 LYXERR(Debug::PARSER, "Handling document header token: `"
 923                                       << token << '\'');
 924
 925                 string const result =
 926                         params().readToken(lex, token, d->filename.onlyPath());
 927                 if (!result.empty()) {
 928                         if (token == "\\textclass") {
 929                                 d->layout_position = result;
 930                         } else {
 931                                 ++unknown_tokens;
 932                                 docstring const s = bformat(_("Unknown token: "
 933                                                                         "%1$s %2$s\n"),
 934                                                          from_utf8(token),
 935                                                          lex.getDocString());
 936                                 errorList.push_back(ErrorItem(_("Document header error"),
 937                                         s, -1, 0, 0));
 938                         }
 939                 }
 940         }
 941         if (begin_header_line) {
 942                 docstring const s = _("\\begin_header is missing");
 943                 errorList.push_back(ErrorItem(_("Document header error"),
 944                         s, -1, 0, 0));
 945         }
 946
 947         params().makeDocumentClass();
 948
 949         return unknown_tokens;
 950 }
 951
 952
 953 // Uwe C. Schroeder
 954 // changed to be public and have one parameter
 955 // Returns true if "\end_document" is not read (Asger)
 956 bool Buffer::readDocument(Lexer & lex)
 957 {
 958         ErrorList & errorList = d->errorLists["Parse"];
 959         errorList.clear();
 960
 961         // remove dummy empty par
 962         paragraphs().clear();
 963
 964         if (!lex.checkFor("\\begin_document")) {
 965                 docstring const s = _("\\begin_document is missing");
 966                 errorList.push_back(ErrorItem(_("Document header error"),
 967                         s, -1, 0, 0));
 968         }
 969
 970         readHeader(lex);
 971
 972         if (params().output_changes) {
 973                 bool dvipost    = LaTeXFeatures::isAvailable("dvipost");
 974                 bool xcolorulem = LaTeXFeatures::isAvailable("ulem") &&
 975                                   LaTeXFeatures::isAvailable("xcolor");
 976
 977                 if (!dvipost && !xcolorulem) {
 978                         Alert::warning(_("Changes not shown in LaTeX output"),
 979                                        _("Changes will not be highlighted in LaTeX output, "
 980                                          "because neither dvipost nor xcolor/ulem are installed.\n"
 981                                          "Please install these packages or redefine "
 982                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 983                 } else if (!xcolorulem) {
 984                         Alert::warning(_("Changes not shown in LaTeX output"),
 985                                        _("Changes will not be highlighted in LaTeX output "
 986                                          "when using pdflatex, because xcolor and ulem are not installed.\n"
 987                                          "Please install both packages or redefine "
 988                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 989                 }
 990         }
 991
 992         if (!parent() && !params().master.empty()) {
 993                 FileName const master_file = makeAbsPath(params().master,
 994                            onlyPath(absFileName()));
 995                 if (isLyXFileName(master_file.absFileName())) {
 996                         Buffer * master =
 997                                 checkAndLoadLyXFile(master_file, true);
 998                         if (master) {
 999                                 // necessary e.g. after a reload
1000                                 // to re-register the child (bug 5873)
1001                                 // FIXME: clean up updateMacros (here, only
1002                                 // child registering is needed).
1003                                 master->updateMacros();
1004                                 // set master as master buffer, but only
1005                                 // if we are a real child
1006                                 if (master->isChild(this))
1007                                         setParent(master);
1008                                 // if the master is not fully loaded
1009                                 // it is probably just loading this
1010                                 // child. No warning needed then.
1011                                 else if (master->isFullyLoaded())
1012                                         LYXERR0("The master '"
1013                                                 << params().master
1014                                                 << "' assigned to this document ("
1015                                                 << absFileName()
1016                                                 << ") does not include "
1017                                                 "this document. Ignoring the master assignment.");
1018                         }
1019                 }
1020         }
1021
1022         // assure we have a default index
1023         params().indiceslist().addDefault(B_("Index"));
1024
1025         // read main text
1026         d->old_position = originFilePath();
1027         bool const res = text().read(lex, errorList, d->inset);
1028         d->old_position.clear();
1029
1030         // inform parent buffer about local macros
1031         if (parent()) {
1032                 Buffer const * pbuf = parent();
1033                 UserMacroSet::const_iterator cit = usermacros.begin();
1034                 UserMacroSet::const_iterator end = usermacros.end();
1035                 for (; cit != end; ++cit)
1036                         pbuf->usermacros.insert(*cit);
1037         }
1038         usermacros.clear();
1039         updateMacros();
1040         updateMacroInstances(InternalUpdate);
1041         return res;
1042 }
1043
1044
1045 bool Buffer::importString(string const & format, docstring const & contents, ErrorList & errorList)
1046 {
1047         Format const * fmt = formats.getFormat(format);
1048         if (!fmt)
1049                 return false;
1050         // It is important to use the correct extension here, since some
1051         // converters create a wrong output file otherwise (e.g. html2latex)
1052         TempFile const tempfile("Buffer_importStringXXXXXX." + fmt->extension());
1053         FileName const name(tempfile.name());
1054         ofdocstream os(name.toFilesystemEncoding().c_str());
1055         // Do not convert os implicitly to bool, since that is forbidden in C++11.
1056         bool const success = !(os << contents).fail();
1057         os.close();
1058
1059         bool converted = false;
1060         if (success) {
1061                 params().compressed = false;
1062
1063                 // remove dummy empty par
1064                 paragraphs().clear();
1065
1066                 converted = importFile(format, name, errorList);
1067         }
1068
1069         if (name.exists())
1070                 name.removeFile();
1071         return converted;
1072 }
1073
1074
1075 bool Buffer::importFile(string const & format, FileName const & name, ErrorList & errorList)
1076 {
1077         if (!theConverters().isReachable(format, "lyx"))
1078                 return false;
1079
1080         TempFile const tempfile("Buffer_importFileXXXXXX.lyx");
1081         FileName const lyx(tempfile.name());
1082         if (theConverters().convert(0, name, lyx, name, format, "lyx", errorList))
1083                 return readFile(lyx) == ReadSuccess;
1084
1085         return false;
1086 }
1087
1088
1089 bool Buffer::readString(string const & s)
1090 {
1091         params().compressed = false;
1092
1093         Lexer lex;
1094         istringstream is(s);
1095         lex.setStream(is);
1096         TempFile tempfile("Buffer_readStringXXXXXX.lyx");
1097         FileName const fn = tempfile.name();
1098
1099         int file_format;
1100         bool success = parseLyXFormat(lex, fn, file_format) == ReadSuccess;
1101
1102         if (success && file_format != LYX_FORMAT) {
1103                 // We need to call lyx2lyx, so write the input to a file
1104                 ofstream os(fn.toFilesystemEncoding().c_str());
1105                 os << s;
1106                 os.close();
1107                 // lyxvc in readFile
1108                 if (readFile(fn) != ReadSuccess)
1109                         success = false;
1110         }
1111         else if (success)
1112                 if (readDocument(lex))
1113                         success = false;
1114         return success;
1115 }
1116
1117
1118 Buffer::ReadStatus Buffer::readFile(FileName const & fn)
1119 {
1120         FileName fname(fn);
1121         Lexer lex;
1122         if (!lex.setFile(fname)) {
1123                 Alert::error(_("File Not Found"),
1124                         bformat(_("Unable to open file `%1$s'."),
1125                                 from_utf8(fn.absFileName())));
1126                 return ReadFileNotFound;
1127         }
1128
1129         int file_format;
1130         ReadStatus const ret_plf = parseLyXFormat(lex, fn, file_format);
1131         if (ret_plf != ReadSuccess)
1132                 return ret_plf;
1133
1134         if (file_format != LYX_FORMAT) {
1135                 FileName tmpFile;
1136                 ReadStatus const ret_clf = convertLyXFormat(fn, tmpFile, file_format);
1137                 if (ret_clf != ReadSuccess)
1138                         return ret_clf;
1139                 return readFile(tmpFile);
1140         }
1141
1142         // FIXME: InsetInfo needs to know whether the file is under VCS
1143         // during the parse process, so this has to be done before.
1144         lyxvc().file_found_hook(d->filename);
1145
1146         if (readDocument(lex)) {
1147                 Alert::error(_("Document format failure"),
1148                         bformat(_("%1$s ended unexpectedly, which means"
1149                                 " that it is probably corrupted."),
1150                                         from_utf8(fn.absFileName())));
1151                 return ReadDocumentFailure;
1152         }
1153
1154         d->file_fully_loaded = true;
1155         d->read_only = !d->filename.isWritable();
1156         params().compressed = formats.isZippedFile(d->filename);
1157         saveCheckSum();
1158         return ReadSuccess;
1159 }
1160
1161
1162 bool Buffer::isFullyLoaded() const
1163 {
1164         return d->file_fully_loaded;
1165 }
1166
1167
1168 void Buffer::setFullyLoaded(bool value)
1169 {
1170         d->file_fully_loaded = value;
1171 }
1172
1173
1174 bool Buffer::lastPreviewError() const
1175 {
1176         return d->preview_error_;
1177 }
1178
1179
1180 PreviewLoader * Buffer::loader() const
1181 {
1182         if (!isExporting() && lyxrc.preview == LyXRC::PREVIEW_OFF)
1183                 return 0;
1184         if (!d->preview_loader_)
1185                 d->preview_loader_ = new PreviewLoader(*this);
1186         return d->preview_loader_;
1187 }
1188
1189
1190 void Buffer::removePreviews() const
1191 {
1192         delete d->preview_loader_;
1193         d->preview_loader_ = 0;
1194 }
1195
1196
1197 void Buffer::updatePreviews() const
1198 {
1199         PreviewLoader * ploader = loader();
1200         if (!ploader)
1201                 return;
1202
1203         InsetIterator it = inset_iterator_begin(*d->inset);
1204         InsetIterator const end = inset_iterator_end(*d->inset);
1205         for (; it != end; ++it)
1206                 it->addPreview(it, *ploader);
1207
1208         ploader->startLoading();
1209 }
1210
1211
1212 Buffer::ReadStatus Buffer::parseLyXFormat(Lexer & lex,
1213         FileName const & fn, int & file_format) const
1214 {
1215         if(!lex.checkFor("\\lyxformat")) {
1216                 Alert::error(_("Document format failure"),
1217                         bformat(_("%1$s is not a readable LyX document."),
1218                                 from_utf8(fn.absFileName())));
1219                 return ReadNoLyXFormat;
1220         }
1221
1222         string tmp_format;
1223         lex >> tmp_format;
1224
1225         // LyX formats 217 and earlier were written as 2.17. This corresponds
1226         // to files from LyX versions < 1.1.6.3. We just remove the dot in
1227         // these cases. See also: www.lyx.org/trac/changeset/1313.
1228         size_t dot = tmp_format.find_first_of(".,");
1229         if (dot != string::npos)
1230                 tmp_format.erase(dot, 1);
1231
1232         file_format = convert<int>(tmp_format);
1233         return ReadSuccess;
1234 }
1235
1236
1237 Buffer::ReadStatus Buffer::convertLyXFormat(FileName const & fn,
1238         FileName & tmpfile, int from_format)
1239 {
1240         TempFile tempfile("Buffer_convertLyXFormatXXXXXX.lyx");
1241         tempfile.setAutoRemove(false);
1242         tmpfile = tempfile.name();
1243         if(tmpfile.empty()) {
1244                 Alert::error(_("Conversion failed"),
1245                         bformat(_("%1$s is from a different"
1246                                 " version of LyX, but a temporary"
1247                                 " file for converting it could"
1248                                 " not be created."),
1249                                 from_utf8(fn.absFileName())));
1250                 return LyX2LyXNoTempFile;
1251         }
1252
1253         FileName const lyx2lyx = libFileSearch("lyx2lyx", "lyx2lyx");
1254         if (lyx2lyx.empty()) {
1255                 Alert::error(_("Conversion script not found"),
1256                      bformat(_("%1$s is from a different"
1257                                " version of LyX, but the"
1258                                " conversion script lyx2lyx"
1259                                " could not be found."),
1260                                from_utf8(fn.absFileName())));
1261                 return LyX2LyXNotFound;
1262         }
1263
1264         // Run lyx2lyx:
1265         //   $python$ "$lyx2lyx$" -t $LYX_FORMAT$ -o "$tempfile$" "$filetoread$"
1266         ostringstream command;
1267         command << os::python()
1268                 << ' ' << quoteName(lyx2lyx.toFilesystemEncoding())
1269                 << " -t " << convert<string>(LYX_FORMAT)
1270                 << " -o " << quoteName(tmpfile.toFilesystemEncoding())
1271                 << ' ' << quoteName(fn.toSafeFilesystemEncoding());
1272         string const command_str = command.str();
1273
1274         LYXERR(Debug::INFO, "Running '" << command_str << '\'');
1275
1276         cmd_ret const ret = runCommand(command_str);
1277         if (ret.first != 0) {
1278                 if (from_format < LYX_FORMAT) {
1279                         Alert::error(_("Conversion script failed"),
1280                                 bformat(_("%1$s is from an older version"
1281                                         " of LyX and the lyx2lyx script"
1282                                         " failed to convert it."),
1283                                         from_utf8(fn.absFileName())));
1284                         return LyX2LyXOlderFormat;
1285                 } else {
1286                         Alert::error(_("Conversion script failed"),
1287                                 bformat(_("%1$s is from a newer version"
1288                                         " of LyX and the lyx2lyx script"
1289                                         " failed to convert it."),
1290                                         from_utf8(fn.absFileName())));
1291                         return LyX2LyXNewerFormat;
1292                 }
1293         }
1294         return ReadSuccess;
1295 }
1296
1297
1298 // Should probably be moved to somewhere else: BufferView? GuiView?
1299 bool Buffer::save() const
1300 {
1301         docstring const file = makeDisplayPath(absFileName(), 20);
1302         d->filename.refresh();
1303
1304         // check the read-only status before moving the file as a backup
1305         if (d->filename.exists()) {
1306                 bool const read_only = !d->filename.isWritable();
1307                 if (read_only) {
1308                         Alert::warning(_("File is read-only"),
1309                                 bformat(_("The file %1$s cannot be written because it "
1310                                 "is marked as read-only."), file));
1311                         return false;
1312                 }
1313         }
1314
1315         // ask if the disk file has been externally modified (use checksum method)
1316         if (fileName().exists() && isExternallyModified(checksum_method)) {
1317                 docstring text =
1318                         bformat(_("Document %1$s has been externally modified. "
1319                                 "Are you sure you want to overwrite this file?"), file);
1320                 int const ret = Alert::prompt(_("Overwrite modified file?"),
1321                         text, 1, 1, _("&Overwrite"), _("&Cancel"));
1322                 if (ret == 1)
1323                         return false;
1324         }
1325
1326         // We don't need autosaves in the immediate future. (Asger)
1327         resetAutosaveTimers();
1328
1329         // if the file does not yet exist, none of the backup activity
1330         // that follows is necessary
1331   if (!fileName().exists()) {
1332                 if (!writeFile(fileName()))
1333       return false;
1334     markClean();
1335     return true;
1336   }
1337
1338         // we first write the file to a new name, then move it to its
1339         // proper location once that has been done successfully. that
1340         // way we preserve the original file if something goes wrong.
1341         string const justname = fileName().onlyFileNameWithoutExt();
1342         boost::scoped_ptr<TempFile>
1343                 tempfile(new TempFile(fileName().onlyPath(),
1344                    justname + "-XXXXXX.lyx"));
1345         bool const symlink = fileName().isSymLink();
1346         if (!symlink)
1347                 tempfile->setAutoRemove(false);
1348
1349         FileName savefile(tempfile->name());
1350         LYXERR(Debug::FILES, "Saving to " << savefile.absFileName());
1351         if (!writeFile(savefile))
1352                 return false;
1353
1354         // we will set this to false if we fail
1355         bool made_backup = true;
1356
1357         FileName backupName(absFileName() + '~');
1358         if (lyxrc.make_backup) {
1359                 if (!lyxrc.backupdir_path.empty()) {
1360                         string const mangledName =
1361                                 subst(subst(backupName.absFileName(), '/', '!'), ':', '!');
1362                         backupName = FileName(addName(lyxrc.backupdir_path,
1363                                                       mangledName));
1364                 }
1365
1366                 LYXERR(Debug::FILES, "Backing up original file to " <<
1367                                 backupName.absFileName());
1368                 // Except file is symlink do not copy because of #6587.
1369                 // Hard links have bad luck.
1370                 made_backup = symlink ?
1371                         fileName().copyTo(backupName):
1372                         fileName().moveTo(backupName);
1373
1374                 if (!made_backup) {
1375                         Alert::error(_("Backup failure"),
1376                                      bformat(_("Cannot create backup file %1$s.\n"
1377                                                "Please check whether the directory exists and is writable."),
1378                                              from_utf8(backupName.absFileName())));
1379                         //LYXERR(Debug::DEBUG, "Fs error: " << fe.what());
1380                 }
1381         }
1382
1383         // Destroy tempfile since it keeps the file locked on windows (bug 9234)
1384         // Only do this if tempfile is not in autoremove mode
1385         if (!symlink)
1386                 tempfile.reset();
1387         // If we have no symlink, we can simply rename the temp file.
1388         // Otherwise, we need to copy it so the symlink stays intact.
1389         if (made_backup && symlink ? savefile.copyTo(fileName(), true) :
1390                                            savefile.moveTo(fileName()))
1391         {
1392                 // saveCheckSum() was already called by writeFile(), but the
1393                 // time stamp is invalidated by copying/moving
1394                 saveCheckSum();
1395                 markClean();
1396                 return true;
1397         }
1398         // else we saved the file, but failed to move it to the right location.
1399
1400         if (lyxrc.make_backup && made_backup && !symlink) {
1401                 // the original file was moved to filename.lyx~, so it will look
1402                 // to the user as if it was deleted. (see bug #9234.) we could try
1403                 // to restore it, but that would basically mean trying to do again
1404                 // what we just failed to do. better to leave things as they are.
1405                 Alert::error(_("Write failure"),
1406                              bformat(_("The file has successfully been saved as:\n  %1$s.\n"
1407                                        "But LyX could not move it to:\n  %2$s.\n"
1408                                        "Your original file has been backed up to:\n  %3$s"),
1409                                      from_utf8(savefile.absFileName()),
1410                                      from_utf8(fileName().absFileName()),
1411                                      from_utf8(backupName.absFileName())));
1412         } else {
1413                 // either we did not try to make a backup, or else we tried and failed,
1414                 // or else the original file was a symlink, in which case it was copied,
1415                 // not moved. so the original file is intact.
1416                 Alert::error(_("Write failure"),
1417                              bformat(_("Cannot move saved file to:\n  %1$s.\n"
1418                                        "But the file has successfully been saved as:\n  %2$s."),
1419                                      from_utf8(fileName().absFileName()),
1420                          from_utf8(savefile.absFileName())));
1421         }
1422         return false;
1423 }
1424
1425
1426 bool Buffer::writeFile(FileName const & fname) const
1427 {
1428         if (d->read_only && fname == d->filename)
1429                 return false;
1430
1431         bool retval = false;
1432
1433         docstring const str = bformat(_("Saving document %1$s..."),
1434                 makeDisplayPath(fname.absFileName()));
1435         message(str);
1436
1437         string const encoded_fname = fname.toSafeFilesystemEncoding(os::CREATE);
1438
1439         if (params().compressed) {
1440                 gz::ogzstream ofs(encoded_fname.c_str(), ios::out|ios::trunc);
1441                 retval = ofs && write(ofs);
1442         } else {
1443                 ofstream ofs(encoded_fname.c_str(), ios::out|ios::trunc);
1444                 retval = ofs && write(ofs);
1445         }
1446
1447         if (!retval) {
1448                 message(str + _(" could not write file!"));
1449                 return false;
1450         }
1451
1452         // see bug 6587
1453         // removeAutosaveFile();
1454
1455         saveCheckSum();
1456         message(str + _(" done."));
1457
1458         return true;
1459 }
1460
1461
1462 docstring Buffer::emergencyWrite()
1463 {
1464         // No need to save if the buffer has not changed.
1465         if (isClean())
1466                 return docstring();
1467
1468         string const doc = isUnnamed() ? onlyFileName(absFileName()) : absFileName();
1469
1470         docstring user_message = bformat(
1471                 _("LyX: Attempting to save document %1$s\n"), from_utf8(doc));
1472
1473         // We try to save three places:
1474         // 1) Same place as document. Unless it is an unnamed doc.
1475         if (!isUnnamed()) {
1476                 string s = absFileName();
1477                 s += ".emergency";
1478                 LYXERR0("  " << s);
1479                 if (writeFile(FileName(s))) {
1480                         markClean();
1481                         user_message += "  " + bformat(_("Saved to %1$s. Phew.\n"), from_utf8(s));
1482                         return user_message;
1483                 } else {
1484                         user_message += "  " + _("Save failed! Trying again...\n");
1485                 }
1486         }
1487
1488         // 2) In HOME directory.
1489         string s = addName(Package::get_home_dir().absFileName(), absFileName());
1490         s += ".emergency";
1491         lyxerr << ' ' << s << endl;
1492         if (writeFile(FileName(s))) {
1493                 markClean();
1494                 user_message += "  " + bformat(_("Saved to %1$s. Phew.\n"), from_utf8(s));
1495                 return user_message;
1496         }
1497
1498         user_message += "  " + _("Save failed! Trying yet again...\n");
1499
1500         // 3) In "/tmp" directory.
1501         // MakeAbsPath to prepend the current
1502         // drive letter on OS/2
1503         s = addName(package().temp_dir().absFileName(), absFileName());
1504         s += ".emergency";
1505         lyxerr << ' ' << s << endl;
1506         if (writeFile(FileName(s))) {
1507                 markClean();
1508                 user_message += "  " + bformat(_("Saved to %1$s. Phew.\n"), from_utf8(s));
1509                 return user_message;
1510         }
1511
1512         user_message += "  " + _("Save failed! Bummer. Document is lost.");
1513         // Don't try again.
1514         markClean();
1515         return user_message;
1516 }
1517
1518
1519 bool Buffer::write(ostream & ofs) const
1520 {
1521 #ifdef HAVE_LOCALE
1522         // Use the standard "C" locale for file output.
1523         ofs.imbue(locale::classic());
1524 #endif
1525
1526         // The top of the file should not be written by params().
1527
1528         // write out a comment in the top of the file
1529         // Important: Keep the version formatting in sync with lyx2lyx and
1530         //            tex2lyx (bug 7951)
1531         ofs << "#LyX " << lyx_version_major << "." << lyx_version_minor
1532             << " created this file. For more info see http://www.lyx.org/\n"
1533             << "\\lyxformat " << LYX_FORMAT << "\n"
1534             << "\\begin_document\n";
1535
1536         /// For each author, set 'used' to true if there is a change
1537         /// by this author in the document; otherwise set it to 'false'.
1538         AuthorList::Authors::const_iterator a_it = params().authors().begin();
1539         AuthorList::Authors::const_iterator a_end = params().authors().end();
1540         for (; a_it != a_end; ++a_it)
1541                 a_it->setUsed(false);
1542
1543         ParIterator const end = const_cast<Buffer *>(this)->par_iterator_end();
1544         ParIterator it = const_cast<Buffer *>(this)->par_iterator_begin();
1545         for ( ; it != end; ++it)
1546                 it->checkAuthors(params().authors());
1547
1548         // now write out the buffer parameters.
1549         ofs << "\\begin_header\n";
1550         params().writeFile(ofs, this);
1551         ofs << "\\end_header\n";
1552
1553         // write the text
1554         ofs << "\n\\begin_body\n";
1555         text().write(ofs);
1556         ofs << "\n\\end_body\n";
1557
1558         // Write marker that shows file is complete
1559         ofs << "\\end_document" << endl;
1560
1561         // Shouldn't really be needed....
1562         //ofs.close();
1563
1564         // how to check if close went ok?
1565         // Following is an attempt... (BE 20001011)
1566
1567         // good() returns false if any error occurred, including some
1568         //        formatting error.
1569         // bad()  returns true if something bad happened in the buffer,
1570         //        which should include file system full errors.
1571
1572         bool status = true;
1573         if (!ofs) {
1574                 status = false;
1575                 lyxerr << "File was not closed properly." << endl;
1576         }
1577
1578         return status;
1579 }
1580
1581
1582 bool Buffer::makeLaTeXFile(FileName const & fname,
1583                            string const & original_path,
1584                            OutputParams const & runparams_in,
1585                            OutputWhat output) const
1586 {
1587         OutputParams runparams = runparams_in;
1588
1589         // This is necessary for LuaTeX/XeTeX with tex fonts.
1590         // See FIXME in BufferParams::encoding()
1591         if (runparams.isFullUnicode())
1592                 runparams.encoding = encodings.fromLyXName("utf8-plain");
1593
1594         string const encoding = runparams.encoding->iconvName();
1595         LYXERR(Debug::LATEX, "makeLaTeXFile encoding: " << encoding << ", fname=" << fname.realPath());
1596
1597         ofdocstream ofs;
1598         try { ofs.reset(encoding); }
1599         catch (iconv_codecvt_facet_exception const & e) {
1600                 lyxerr << "Caught iconv exception: " << e.what() << endl;
1601                 Alert::error(_("Iconv software exception Detected"), bformat(_("Please "
1602                         "verify that the support software for your encoding (%1$s) is "
1603                         "properly installed"), from_ascii(encoding)));
1604                 return false;
1605         }
1606         if (!openFileWrite(ofs, fname))
1607                 return false;
1608
1609         ErrorList & errorList = d->errorLists["Export"];
1610         errorList.clear();
1611         bool failed_export = false;
1612         otexstream os(ofs, d->texrow);
1613
1614         // make sure we are ready to export
1615         // this needs to be done before we validate
1616         // FIXME Do we need to do this all the time? I.e., in children
1617         // of a master we are exporting?
1618         updateBuffer();
1619         updateMacroInstances(OutputUpdate);
1620
1621         try {
1622                 os.texrow().reset();
1623                 writeLaTeXSource(os, original_path, runparams, output);
1624         }
1625         catch (EncodingException const & e) {
1626                 docstring const failed(1, e.failed_char);
1627                 ostringstream oss;
1628                 oss << "0x" << hex << e.failed_char << dec;
1629                 docstring msg = bformat(_("Could not find LaTeX command for character '%1$s'"
1630                                           " (code point %2$s)"),
1631                                           failed, from_utf8(oss.str()));
1632                 errorList.push_back(ErrorItem(msg, _("Some characters of your document are probably not "
1633                                 "representable in the chosen encoding.\n"
1634                                 "Changing the document encoding to utf8 could help."),
1635                                 e.par_id, e.pos, e.pos + 1));
1636                 failed_export = true;
1637         }
1638         catch (iconv_codecvt_facet_exception const & e) {
1639                 errorList.push_back(ErrorItem(_("iconv conversion failed"),
1640                         _(e.what()), -1, 0, 0));
1641                 failed_export = true;
1642         }
1643         catch (exception const & e) {
1644                 errorList.push_back(ErrorItem(_("conversion failed"),
1645                         _(e.what()), -1, 0, 0));
1646                 failed_export = true;
1647         }
1648         catch (...) {
1649                 lyxerr << "Caught some really weird exception..." << endl;
1650                 lyx_exit(1);
1651         }
1652
1653         ofs.close();
1654         if (ofs.fail()) {
1655                 failed_export = true;
1656                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1657         }
1658
1659         if (runparams_in.silent)
1660                 errorList.clear();
1661         else
1662                 errors("Export");
1663         return !failed_export;
1664 }
1665
1666
1667 void Buffer::writeLaTeXSource(otexstream & os,
1668                            string const & original_path,
1669                            OutputParams const & runparams_in,
1670                            OutputWhat output) const
1671 {
1672         // The child documents, if any, shall be already loaded at this point.
1673
1674         OutputParams runparams = runparams_in;
1675
1676         // This is necessary for LuaTeX/XeTeX with tex fonts.
1677         // See FIXME in BufferParams::encoding()
1678         if (runparams.isFullUnicode())
1679                 runparams.encoding = encodings.fromLyXName("utf8-plain");
1680
1681         // If we are compiling a file standalone, even if this is the
1682         // child of some other buffer, let's cut the link here, so the
1683         // file is really independent and no concurring settings from
1684         // the master (e.g. branch state) interfere (see #8100).
1685         if (!runparams.is_child)
1686                 d->ignore_parent = true;
1687
1688         // Classify the unicode characters appearing in math insets
1689         BufferEncodings::initUnicodeMath(*this);
1690
1691         // validate the buffer.
1692         LYXERR(Debug::LATEX, "  Validating buffer...");
1693         LaTeXFeatures features(*this, params(), runparams);
1694         validate(features);
1695         // This is only set once per document (in master)
1696         if (!runparams.is_child)
1697                 runparams.use_polyglossia = features.usePolyglossia();
1698         LYXERR(Debug::LATEX, "  Buffer validation done.");
1699
1700         bool const output_preamble =
1701                 output == FullSource || output == OnlyPreamble;
1702         bool const output_body =
1703                 output == FullSource || output == OnlyBody;
1704
1705         // The starting paragraph of the coming rows is the
1706         // first paragraph of the document. (Asger)
1707         if (output_preamble && runparams.nice) {
1708                 os << "%% LyX " << lyx_version << " created this file.  "
1709                         "For more info, see http://www.lyx.org/.\n"
1710                         "%% Do not edit unless you really know what "
1711                         "you are doing.\n";
1712         }
1713         LYXERR(Debug::INFO, "lyx document header finished");
1714
1715         // There are a few differences between nice LaTeX and usual files:
1716         // usual files have \batchmode and special input@path to allow
1717         // inclusion of figures specified by an explicitly relative path
1718         // (i.e., a path starting with './' or '../') with either \input or
1719         // \includegraphics, as the TEXINPUTS method doesn't work in this case.
1720         // input@path is set when the actual parameter original_path is set.
1721         // This is done for usual tex-file, but not for nice-latex-file.
1722         // (Matthias 250696)
1723         // Note that input@path is only needed for something the user does
1724         // in the preamble, included .tex files or ERT, files included by
1725         // LyX work without it.
1726         if (output_preamble) {
1727                 if (!runparams.nice) {
1728                         // code for usual, NOT nice-latex-file
1729                         os << "\\batchmode\n"; // changed from \nonstopmode
1730                 }
1731                 if (!original_path.empty()) {
1732                         // FIXME UNICODE
1733                         // We don't know the encoding of inputpath
1734                         docstring const inputpath = from_utf8(original_path);
1735                         docstring uncodable_glyphs;
1736                         Encoding const * const enc = runparams.encoding;
1737                         if (enc) {
1738                                 for (size_t n = 0; n < inputpath.size(); ++n) {
1739                                         if (!enc->encodable(inputpath[n])) {
1740                                                 docstring const glyph(1, inputpath[n]);
1741                                                 LYXERR0("Uncodable character '"
1742                                                         << glyph
1743                                                         << "' in input path!");
1744                                                 uncodable_glyphs += glyph;
1745                                         }
1746                                 }
1747                         }
1748
1749                         // warn user if we found uncodable glyphs.
1750                         if (!uncodable_glyphs.empty()) {
1751                                 frontend::Alert::warning(
1752                                         _("Uncodable character in file path"),
1753                                         support::bformat(
1754                                           _("The path of your document\n"
1755                                             "(%1$s)\n"
1756                                             "contains glyphs that are unknown "
1757                                             "in the current document encoding "
1758                                             "(namely %2$s). This may result in "
1759                                             "incomplete output, unless "
1760                                             "TEXINPUTS contains the document "
1761                                             "directory and you don't use "
1762                                             "explicitly relative paths (i.e., "
1763                                             "paths starting with './' or "
1764                                             "'../') in the preamble or in ERT."
1765                                             "\n\nIn case of problems, choose "
1766                                             "an appropriate document encoding\n"
1767                                             "(such as utf8) or change the "
1768                                             "file path name."),
1769                                           inputpath, uncodable_glyphs));
1770                         } else {
1771                                 string docdir =
1772                                         support::latex_path(original_path);
1773                                 if (contains(docdir, '#')) {
1774                                         docdir = subst(docdir, "#", "\\#");
1775                                         os << "\\catcode`\\#=11"
1776                                               "\\def\\#{#}\\catcode`\\#=6\n";
1777                                 }
1778                                 if (contains(docdir, '%')) {
1779                                         docdir = subst(docdir, "%", "\\%");
1780                                         os << "\\catcode`\\%=11"
1781                                               "\\def\\%{%}\\catcode`\\%=14\n";
1782                                 }
1783                                 os << "\\makeatletter\n"
1784                                    << "\\def\\input@path{{"
1785                                    << docdir << "/}}\n"
1786                                    << "\\makeatother\n";
1787                         }
1788                 }
1789
1790                 // get parent macros (if this buffer has a parent) which will be
1791                 // written at the document begin further down.
1792                 MacroSet parentMacros;
1793                 listParentMacros(parentMacros, features);
1794
1795                 // Write the preamble
1796                 runparams.use_babel = params().writeLaTeX(os, features,
1797                                                           d->filename.onlyPath());
1798
1799                 // Japanese might be required only in some children of a document,
1800                 // but once required, we must keep use_japanese true.
1801                 runparams.use_japanese |= features.isRequired("japanese");
1802
1803                 if (!output_body) {
1804                         // Restore the parenthood if needed
1805                         if (!runparams.is_child)
1806                                 d->ignore_parent = false;
1807                         return;
1808                 }
1809
1810                 // make the body.
1811                 os << "\\begin{document}\n";
1812
1813                 // output the parent macros
1814                 MacroSet::iterator it = parentMacros.begin();
1815                 MacroSet::iterator end = parentMacros.end();
1816                 for (; it != end; ++it) {
1817                         int num_lines = (*it)->write(os.os(), true);
1818                         os.texrow().newlines(num_lines);
1819                 }
1820
1821         } // output_preamble
1822
1823         os.texrow().start(paragraphs().begin()->id(), 0);
1824
1825         LYXERR(Debug::INFO, "preamble finished, now the body.");
1826
1827         // the real stuff
1828         latexParagraphs(*this, text(), os, runparams);
1829
1830         // Restore the parenthood if needed
1831         if (!runparams.is_child)
1832                 d->ignore_parent = false;
1833
1834         // add this just in case after all the paragraphs
1835         os << endl;
1836
1837         if (output_preamble) {
1838                 os << "\\end{document}\n";
1839                 LYXERR(Debug::LATEX, "makeLaTeXFile...done");
1840         } else {
1841                 LYXERR(Debug::LATEX, "LaTeXFile for inclusion made.");
1842         }
1843         runparams_in.encoding = runparams.encoding;
1844
1845         // Just to be sure. (Asger)
1846         os.texrow().newline();
1847
1848         //for (int i = 0; i<d->texrow.rows(); i++) {
1849         // int id,pos;
1850         // if (d->texrow.getIdFromRow(i+1,id,pos) && id>0)
1851         //      lyxerr << i+1 << ":" << id << ":" << getParFromID(id).paragraph().asString()<<"\n";
1852         //}
1853
1854         LYXERR(Debug::INFO, "Finished making LaTeX file.");
1855         LYXERR(Debug::INFO, "Row count was " << os.texrow().rows() - 1 << '.');
1856 }
1857
1858
1859 void Buffer::makeDocBookFile(FileName const & fname,
1860                               OutputParams const & runparams,
1861                               OutputWhat output) const
1862 {
1863         LYXERR(Debug::LATEX, "makeDocBookFile...");
1864
1865         ofdocstream ofs;
1866         if (!openFileWrite(ofs, fname))
1867                 return;
1868
1869         // make sure we are ready to export
1870         // this needs to be done before we validate
1871         updateBuffer();
1872         updateMacroInstances(OutputUpdate);
1873
1874         writeDocBookSource(ofs, fname.absFileName(), runparams, output);
1875
1876         ofs.close();
1877         if (ofs.fail())
1878                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1879 }
1880
1881
1882 void Buffer::writeDocBookSource(odocstream & os, string const & fname,
1883                              OutputParams const & runparams,
1884                              OutputWhat output) const
1885 {
1886         LaTeXFeatures features(*this, params(), runparams);
1887         validate(features);
1888
1889         d->texrow.reset();
1890
1891         DocumentClass const & tclass = params().documentClass();
1892         string const & top_element = tclass.latexname();
1893
1894         bool const output_preamble =
1895                 output == FullSource || output == OnlyPreamble;
1896         bool const output_body =
1897           output == FullSource || output == OnlyBody;
1898
1899         if (output_preamble) {
1900                 if (runparams.flavor == OutputParams::XML)
1901                         os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
1902
1903                 // FIXME UNICODE
1904                 os << "<!DOCTYPE " << from_ascii(top_element) << ' ';
1905
1906                 // FIXME UNICODE
1907                 if (! tclass.class_header().empty())
1908                         os << from_ascii(tclass.class_header());
1909                 else if (runparams.flavor == OutputParams::XML)
1910                         os << "PUBLIC \"-//OASIS//DTD DocBook XML//EN\" "
1911                             << "\"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd\"";
1912                 else
1913                         os << " PUBLIC \"-//OASIS//DTD DocBook V4.2//EN\"";
1914
1915                 docstring preamble = from_utf8(params().preamble);
1916                 if (runparams.flavor != OutputParams::XML ) {
1917                         preamble += "<!ENTITY % output.print.png \"IGNORE\">\n";
1918                         preamble += "<!ENTITY % output.print.pdf \"IGNORE\">\n";
1919                         preamble += "<!ENTITY % output.print.eps \"IGNORE\">\n";
1920                         preamble += "<!ENTITY % output.print.bmp \"IGNORE\">\n";
1921                 }
1922
1923                 string const name = runparams.nice
1924                         ? changeExtension(absFileName(), ".sgml") : fname;
1925                 preamble += features.getIncludedFiles(name);
1926                 preamble += features.getLyXSGMLEntities();
1927
1928                 if (!preamble.empty()) {
1929                         os << "\n [ " << preamble << " ]";
1930                 }
1931                 os << ">\n\n";
1932         }
1933
1934         if (output_body) {
1935                 string top = top_element;
1936                 top += " lang=\"";
1937                 if (runparams.flavor == OutputParams::XML)
1938                         top += params().language->code();
1939                 else
1940                         top += params().language->code().substr(0, 2);
1941                 top += '"';
1942
1943                 if (!params().options.empty()) {
1944                         top += ' ';
1945                         top += params().options;
1946                 }
1947
1948                 os << "<!-- " << ((runparams.flavor == OutputParams::XML)? "XML" : "SGML")
1949                                 << " file was created by LyX " << lyx_version
1950                                 << "\n  See http://www.lyx.org/ for more information -->\n";
1951
1952                 params().documentClass().counters().reset();
1953
1954                 sgml::openTag(os, top);
1955                 os << '\n';
1956                 docbookParagraphs(text(), *this, os, runparams);
1957                 sgml::closeTag(os, top_element);
1958         }
1959 }
1960
1961
1962 void Buffer::makeLyXHTMLFile(FileName const & fname,
1963                               OutputParams const & runparams) const
1964 {
1965         LYXERR(Debug::LATEX, "makeLyXHTMLFile...");
1966
1967         ofdocstream ofs;
1968         if (!openFileWrite(ofs, fname))
1969                 return;
1970
1971         // make sure we are ready to export
1972         // this has to be done before we validate
1973         updateBuffer(UpdateMaster, OutputUpdate);
1974         updateMacroInstances(OutputUpdate);
1975
1976         writeLyXHTMLSource(ofs, runparams, FullSource);
1977
1978         ofs.close();
1979         if (ofs.fail())
1980                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1981 }
1982
1983
1984 void Buffer::writeLyXHTMLSource(odocstream & os,
1985                              OutputParams const & runparams,
1986                              OutputWhat output) const
1987 {
1988         LaTeXFeatures features(*this, params(), runparams);
1989         validate(features);
1990         d->bibinfo_.makeCitationLabels(*this);
1991
1992         bool const output_preamble =
1993                 output == FullSource || output == OnlyPreamble;
1994         bool const output_body =
1995           output == FullSource || output == OnlyBody || output == IncludedFile;
1996
1997         if (output_preamble) {
1998                 os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
1999                    << "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1 plus MathML 2.0//EN\" \"http://www.w3.org/Math/DTD/mathml2/xhtml-math11-f.dtd\">\n"
2000                    // FIXME Language should be set properly.
2001                    << "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n"
2002                    << "<head>\n"
2003                    << "<meta name=\"GENERATOR\" content=\"" << PACKAGE_STRING << "\" />\n"
2004                    // FIXME Presumably need to set this right
2005                    << "<meta http-equiv=\"Content-type\" content=\"text/html;charset=UTF-8\" />\n";
2006
2007                 docstring const & doctitle = features.htmlTitle();
2008                 os << "<title>"
2009                    << (doctitle.empty() ?
2010                          from_ascii("LyX Document") :
2011                          html::htmlize(doctitle, XHTMLStream::ESCAPE_ALL))
2012                    << "</title>\n";
2013
2014                 docstring styles = features.getTClassHTMLPreamble();
2015                 if (!styles.empty())
2016                         os << "\n<!-- Text Class Preamble -->\n" << styles << '\n';
2017
2018                 styles = from_utf8(features.getPreambleSnippets());
2019                 if (!styles.empty())
2020                         os << "\n<!-- Preamble Snippets -->\n" << styles << '\n';
2021
2022                 // we will collect CSS information in a stream, and then output it
2023                 // either here, as part of the header, or else in a separate file.
2024                 odocstringstream css;
2025                 styles = from_utf8(features.getCSSSnippets());
2026                 if (!styles.empty())
2027                         css << "/* LyX Provided Styles */\n" << styles << '\n';
2028
2029                 styles = features.getTClassHTMLStyles();
2030                 if (!styles.empty())
2031                         css << "/* Layout-provided Styles */\n" << styles << '\n';
2032
2033                 bool const needfg = params().fontcolor != RGBColor(0, 0, 0);
2034                 bool const needbg = params().backgroundcolor != RGBColor(0xFF, 0xFF, 0xFF);
2035                 if (needfg || needbg) {
2036                                 css << "\nbody {\n";
2037                                 if (needfg)
2038                                    css << "  color: "
2039                                             << from_ascii(X11hexname(params().fontcolor))
2040                                             << ";\n";
2041                                 if (needbg)
2042                                    css << "  background-color: "
2043                                             << from_ascii(X11hexname(params().backgroundcolor))
2044                                             << ";\n";
2045                                 css << "}\n";
2046                 }
2047
2048                 docstring const dstyles = css.str();
2049                 if (!dstyles.empty()) {
2050                         bool written = false;
2051                         if (params().html_css_as_file) {
2052                                 // open a file for CSS info
2053                                 ofdocstream ocss;
2054                                 string const fcssname = addName(temppath(), "docstyle.css");
2055                                 FileName const fcssfile = FileName(fcssname);
2056                                 if (openFileWrite(ocss, fcssfile)) {
2057                                         ocss << dstyles;
2058                                         ocss.close();
2059                                         written = true;
2060                                         // write link to header
2061                                         os << "<link rel='stylesheet' href='docstyle.css' type='text/css' />\n";
2062                                         // register file
2063                                         runparams.exportdata->addExternalFile("xhtml", fcssfile);
2064                                 }
2065                         }
2066                         // we are here if the CSS is supposed to be written to the header
2067                         // or if we failed to write it to an external file.
2068                         if (!written) {
2069                                 os << "<style type='text/css'>\n"
2070                                          << dstyles
2071                                          << "\n</style>\n";
2072                         }
2073                 }
2074                 os << "</head>\n";
2075         }
2076
2077         if (output_body) {
2078                 bool const output_body_tag = (output != IncludedFile);
2079                 if (output_body_tag)
2080                         os << "<body>\n";
2081                 XHTMLStream xs(os);
2082                 if (output != IncludedFile)
2083                         // if we're an included file, the counters are in the master.
2084                         params().documentClass().counters().reset();
2085                 xhtmlParagraphs(text(), *this, xs, runparams);
2086                 if (output_body_tag)
2087                         os << "</body>\n";
2088         }
2089
2090         if (output_preamble)
2091                 os << "</html>\n";
2092 }
2093
2094
2095 // chktex should be run with these flags disabled: 3, 22, 25, 30, 38(?)
2096 // Other flags: -wall -v0 -x
2097 int Buffer::runChktex()
2098 {
2099         setBusy(true);
2100
2101         // get LaTeX-Filename
2102         FileName const path(temppath());
2103         string const name = addName(path.absFileName(), latexName());
2104         string const org_path = filePath();
2105
2106         PathChanger p(path); // path to LaTeX file
2107         message(_("Running chktex..."));
2108
2109         // Generate the LaTeX file if neccessary
2110         OutputParams runparams(&params().encoding());
2111         runparams.flavor = OutputParams::LATEX;
2112         runparams.nice = false;
2113         runparams.linelen = lyxrc.plaintext_linelen;
2114         makeLaTeXFile(FileName(name), org_path, runparams);
2115
2116         TeXErrors terr;
2117         Chktex chktex(lyxrc.chktex_command, onlyFileName(name), filePath());
2118         int const res = chktex.run(terr); // run chktex
2119
2120         if (res == -1) {
2121                 Alert::error(_("chktex failure"),
2122                              _("Could not run chktex successfully."));
2123         } else {
2124                 ErrorList & errlist = d->errorLists["ChkTeX"];
2125                 errlist.clear();
2126                 bufferErrors(terr, errlist);
2127         }
2128
2129         setBusy(false);
2130
2131         if (runparams.silent)
2132                 d->errorLists["ChkTeX"].clear();
2133         else
2134                 errors("ChkTeX");
2135
2136         return res;
2137 }
2138
2139
2140 void Buffer::validate(LaTeXFeatures & features) const
2141 {
2142         // Validate the buffer params, but not for included
2143         // files, since they also use the parent buffer's
2144         // params (# 5941)
2145         if (!features.runparams().is_child)
2146                 params().validate(features);
2147
2148         for_each(paragraphs().begin(), paragraphs().end(),
2149                  bind(&Paragraph::validate, _1, ref(features)));
2150
2151         if (lyxerr.debugging(Debug::LATEX)) {
2152                 features.showStruct();
2153         }
2154 }
2155
2156
2157 void Buffer::getLabelList(vector<docstring> & list) const
2158 {
2159         // If this is a child document, use the master's list instead.
2160         if (parent()) {
2161                 masterBuffer()->getLabelList(list);
2162                 return;
2163         }
2164
2165         list.clear();
2166         Toc & toc = d->toc_backend.toc("label");
2167         TocIterator toc_it = toc.begin();
2168         TocIterator end = toc.end();
2169         for (; toc_it != end; ++toc_it) {
2170                 if (toc_it->depth() == 0)
2171                         list.push_back(toc_it->str());
2172         }
2173 }
2174
2175
2176 void Buffer::updateBibfilesCache(UpdateScope scope) const
2177 {
2178         // FIXME This is probably unnecssary, given where we call this.
2179         // If this is a child document, use the parent's cache instead.
2180         if (parent() && scope != UpdateChildOnly) {
2181                 masterBuffer()->updateBibfilesCache();
2182                 return;
2183         }
2184
2185         d->bibfiles_cache_.clear();
2186         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
2187                 if (it->lyxCode() == BIBTEX_CODE) {
2188                         InsetBibtex const & inset = static_cast<InsetBibtex const &>(*it);
2189                         support::FileNameList const bibfiles = inset.getBibFiles();
2190                         d->bibfiles_cache_.insert(d->bibfiles_cache_.end(),
2191                                 bibfiles.begin(),
2192                                 bibfiles.end());
2193                 } else if (it->lyxCode() == INCLUDE_CODE) {
2194                         InsetInclude & inset = static_cast<InsetInclude &>(*it);
2195                         Buffer const * const incbuf = inset.getChildBuffer();
2196                         if (!incbuf)
2197                                 continue;
2198                         support::FileNameList const & bibfiles =
2199                                         incbuf->getBibfilesCache(UpdateChildOnly);
2200                         if (!bibfiles.empty()) {
2201                                 d->bibfiles_cache_.insert(d->bibfiles_cache_.end(),
2202                                         bibfiles.begin(),
2203                                         bibfiles.end());
2204                         }
2205                 }
2206         }
2207         d->bibfile_cache_valid_ = true;
2208         d->bibinfo_cache_valid_ = false;
2209         d->cite_labels_valid_ = false;
2210 }
2211
2212
2213 void Buffer::invalidateBibinfoCache() const
2214 {
2215         d->bibinfo_cache_valid_ = false;
2216         d->cite_labels_valid_ = false;
2217         // also invalidate the cache for the parent buffer
2218         Buffer const * const pbuf = d->parent();
2219         if (pbuf)
2220                 pbuf->invalidateBibinfoCache();
2221 }
2222
2223
2224 void Buffer::invalidateBibfileCache() const
2225 {
2226         d->bibfile_cache_valid_ = false;
2227         d->bibinfo_cache_valid_ = false;
2228         d->cite_labels_valid_ = false;
2229         // also invalidate the cache for the parent buffer
2230         Buffer const * const pbuf = d->parent();
2231         if (pbuf)
2232                 pbuf->invalidateBibfileCache();
2233 }
2234
2235
2236 support::FileNameList const & Buffer::getBibfilesCache(UpdateScope scope) const
2237 {
2238         // FIXME This is probably unnecessary, given where we call this.
2239         // If this is a child document, use the master's cache instead.
2240         Buffer const * const pbuf = masterBuffer();
2241         if (pbuf != this && scope != UpdateChildOnly)
2242                 return pbuf->getBibfilesCache();
2243
2244         if (!d->bibfile_cache_valid_)
2245                 this->updateBibfilesCache(scope);
2246
2247         return d->bibfiles_cache_;
2248 }
2249
2250
2251 BiblioInfo const & Buffer::masterBibInfo() const
2252 {
2253         Buffer const * const tmp = masterBuffer();
2254         if (tmp != this)
2255                 return tmp->masterBibInfo();
2256         return d->bibinfo_;
2257 }
2258
2259
2260 void Buffer::checkIfBibInfoCacheIsValid() const
2261 {
2262         // use the master's cache
2263         Buffer const * const tmp = masterBuffer();
2264         if (tmp != this) {
2265                 tmp->checkIfBibInfoCacheIsValid();
2266                 return;
2267         }
2268
2269         // compare the cached timestamps with the actual ones.
2270         FileNameList const & bibfiles_cache = getBibfilesCache();
2271         FileNameList::const_iterator ei = bibfiles_cache.begin();
2272         FileNameList::const_iterator en = bibfiles_cache.end();
2273         for (; ei != en; ++ ei) {
2274                 time_t lastw = ei->lastModified();
2275                 time_t prevw = d->bibfile_status_[*ei];
2276                 if (lastw != prevw) {
2277                         d->bibinfo_cache_valid_ = false;
2278                         d->cite_labels_valid_ = false;
2279                         d->bibfile_status_[*ei] = lastw;
2280                 }
2281         }
2282 }
2283
2284
2285 void Buffer::reloadBibInfoCache() const
2286 {
2287         // use the master's cache
2288         Buffer const * const tmp = masterBuffer();
2289         if (tmp != this) {
2290                 tmp->reloadBibInfoCache();
2291                 return;
2292         }
2293
2294         checkIfBibInfoCacheIsValid();
2295         if (d->bibinfo_cache_valid_)
2296                 return;
2297
2298         d->bibinfo_.clear();
2299         collectBibKeys();
2300         d->bibinfo_cache_valid_ = true;
2301 }
2302
2303
2304 void Buffer::collectBibKeys() const
2305 {
2306         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it)
2307                 it->collectBibKeys(it);
2308 }
2309
2310
2311 void Buffer::addBiblioInfo(BiblioInfo const & bi) const
2312 {
2313         Buffer const * tmp = masterBuffer();
2314         BiblioInfo & masterbi = (tmp == this) ?
2315                 d->bibinfo_ : tmp->d->bibinfo_;
2316         masterbi.mergeBiblioInfo(bi);
2317 }
2318
2319
2320 void Buffer::addBibTeXInfo(docstring const & key, BibTeXInfo const & bi) const
2321 {
2322         Buffer const * tmp = masterBuffer();
2323         BiblioInfo & masterbi = (tmp == this) ?
2324                 d->bibinfo_ : tmp->d->bibinfo_;
2325         masterbi[key] = bi;
2326 }
2327
2328
2329 void Buffer::makeCitationLabels() const
2330 {
2331         Buffer const * const master = masterBuffer();
2332         return d->bibinfo_.makeCitationLabels(*master);
2333 }
2334
2335
2336 bool Buffer::citeLabelsValid() const
2337 {
2338         return masterBuffer()->d->cite_labels_valid_;
2339 }
2340
2341
2342 void Buffer::removeBiblioTempFiles() const
2343 {
2344         // We remove files that contain LaTeX commands specific to the
2345         // particular bibliographic style being used, in order to avoid
2346         // LaTeX errors when we switch style.
2347         FileName const aux_file(addName(temppath(), changeExtension(latexName(),".aux")));
2348         FileName const bbl_file(addName(temppath(), changeExtension(latexName(),".bbl")));
2349         LYXERR(Debug::FILES, "Removing the .aux file " << aux_file);
2350         aux_file.removeFile();
2351         LYXERR(Debug::FILES, "Removing the .bbl file " << bbl_file);
2352         bbl_file.removeFile();
2353         // Also for the parent buffer
2354         Buffer const * const pbuf = parent();
2355         if (pbuf)
2356                 pbuf->removeBiblioTempFiles();
2357 }
2358
2359
2360 bool Buffer::isDepClean(string const & name) const
2361 {
2362         DepClean::const_iterator const it = d->dep_clean.find(name);
2363         if (it == d->dep_clean.end())
2364                 return true;
2365         return it->second;
2366 }
2367
2368
2369 void Buffer::markDepClean(string const & name)
2370 {
2371         d->dep_clean[name] = true;
2372 }
2373
2374
2375 bool Buffer::getStatus(FuncRequest const & cmd, FuncStatus & flag)
2376 {
2377         if (isInternal()) {
2378                 // FIXME? if there is an Buffer LFUN that can be dispatched even
2379                 // if internal, put a switch '(cmd.action)' here.
2380                 return false;
2381         }
2382
2383         bool enable = true;
2384
2385         switch (cmd.action()) {
2386
2387         case LFUN_BUFFER_TOGGLE_READ_ONLY:
2388                 flag.setOnOff(isReadonly());
2389                 break;
2390
2391                 // FIXME: There is need for a command-line import.
2392                 //case LFUN_BUFFER_IMPORT:
2393
2394         case LFUN_BUFFER_AUTO_SAVE:
2395                 break;
2396
2397         case LFUN_BUFFER_EXPORT_CUSTOM:
2398                 // FIXME: Nothing to check here?
2399                 break;
2400
2401         case LFUN_BUFFER_EXPORT: {
2402                 docstring const arg = cmd.argument();
2403                 if (arg == "custom") {
2404                         enable = true;
2405                         break;
2406                 }
2407                 string format = to_utf8(arg);
2408                 size_t pos = format.find(' ');
2409                 if (pos != string::npos)
2410                         format = format.substr(0, pos);
2411                 enable = params().isExportable(format);
2412                 if (!enable)
2413                         flag.message(bformat(
2414                                              _("Don't know how to export to format: %1$s"), arg));
2415                 break;
2416         }
2417
2418         case LFUN_BUFFER_CHKTEX:
2419                 enable = params().isLatex() && !lyxrc.chktex_command.empty();
2420                 break;
2421
2422         case LFUN_BUILD_PROGRAM:
2423                 enable = params().isExportable("program");
2424                 break;
2425
2426         case LFUN_BRANCH_ACTIVATE:
2427         case LFUN_BRANCH_DEACTIVATE:
2428         case LFUN_BRANCH_MASTER_ACTIVATE:
2429         case LFUN_BRANCH_MASTER_DEACTIVATE: {
2430                 bool const master = (cmd.action() == LFUN_BRANCH_MASTER_ACTIVATE
2431                                      || cmd.action() == LFUN_BRANCH_MASTER_DEACTIVATE);
2432                 BranchList const & branchList = master ? masterBuffer()->params().branchlist()
2433                         : params().branchlist();
2434                 docstring const branchName = cmd.argument();
2435                 flag.setEnabled(!branchName.empty() && branchList.find(branchName));
2436                 break;
2437         }
2438
2439         case LFUN_BRANCH_ADD:
2440         case LFUN_BRANCHES_RENAME:
2441                 // if no Buffer is present, then of course we won't be called!
2442                 break;
2443
2444         case LFUN_BUFFER_LANGUAGE:
2445                 enable = !isReadonly();
2446                 break;
2447
2448         case LFUN_BUFFER_VIEW_CACHE:
2449                 enable = (d->preview_file_).exists();
2450                 break;
2451
2452         default:
2453                 return false;
2454         }
2455         flag.setEnabled(enable);
2456         return true;
2457 }
2458
2459
2460 void Buffer::dispatch(string const & command, DispatchResult & result)
2461 {
2462         return dispatch(lyxaction.lookupFunc(command), result);
2463 }
2464
2465
2466 // NOTE We can end up here even if we have no GUI, because we are called
2467 // by LyX::exec to handled command-line requests. So we may need to check
2468 // whether we have a GUI or not. The boolean use_gui holds this information.
2469 void Buffer::dispatch(FuncRequest const & func, DispatchResult & dr)
2470 {
2471         if (isInternal()) {
2472                 // FIXME? if there is an Buffer LFUN that can be dispatched even
2473                 // if internal, put a switch '(cmd.action())' here.
2474                 dr.dispatched(false);
2475                 return;
2476         }
2477         string const argument = to_utf8(func.argument());
2478         // We'll set this back to false if need be.
2479         bool dispatched = true;
2480         undo().beginUndoGroup();
2481
2482         switch (func.action()) {
2483         case LFUN_BUFFER_TOGGLE_READ_ONLY:
2484                 if (lyxvc().inUse()) {
2485                         string log = lyxvc().toggleReadOnly();
2486                         if (!log.empty())
2487                                 dr.setMessage(log);
2488                 }
2489                 else
2490                         setReadonly(!isReadonly());
2491                 break;
2492
2493         case LFUN_BUFFER_EXPORT: {
2494                 ExportStatus const status = doExport(argument, false);
2495                 dr.setError(status != ExportSuccess);
2496                 if (status != ExportSuccess)
2497                         dr.setMessage(bformat(_("Error exporting to format: %1$s."),
2498                                               func.argument()));
2499                 break;
2500         }
2501
2502         case LFUN_BUILD_PROGRAM: {
2503                 ExportStatus const status = doExport("program", true);
2504                 dr.setError(status != ExportSuccess);
2505                 if (status != ExportSuccess)
2506                         dr.setMessage(_("Error generating literate programming code."));
2507                 break;
2508         }
2509
2510         case LFUN_BUFFER_CHKTEX:
2511                 runChktex();
2512                 break;
2513
2514         case LFUN_BUFFER_EXPORT_CUSTOM: {
2515                 string format_name;
2516                 string command = split(argument, format_name, ' ');
2517                 Format const * format = formats.getFormat(format_name);
2518                 if (!format) {
2519                         lyxerr << "Format \"" << format_name
2520                                 << "\" not recognized!"
2521                                 << endl;
2522                         break;
2523                 }
2524
2525                 // The name of the file created by the conversion process
2526                 string filename;
2527
2528                 // Output to filename
2529                 if (format->name() == "lyx") {
2530                         string const latexname = latexName(false);
2531                         filename = changeExtension(latexname,
2532                                 format->extension());
2533                         filename = addName(temppath(), filename);
2534
2535                         if (!writeFile(FileName(filename)))
2536                                 break;
2537
2538                 } else {
2539                         doExport(format_name, true, filename);
2540                 }
2541
2542                 // Substitute $$FName for filename
2543                 if (!contains(command, "$$FName"))
2544                         command = "( " + command + " ) < $$FName";
2545                 command = subst(command, "$$FName", filename);
2546
2547                 // Execute the command in the background
2548                 Systemcall call;
2549                 call.startscript(Systemcall::DontWait, command,
2550                                  filePath(), layoutPos());
2551                 break;
2552         }
2553
2554         // FIXME: There is need for a command-line import.
2555         /*
2556         case LFUN_BUFFER_IMPORT:
2557                 doImport(argument);
2558                 break;
2559         */
2560
2561         case LFUN_BUFFER_AUTO_SAVE:
2562                 autoSave();
2563                 resetAutosaveTimers();
2564                 break;
2565
2566         case LFUN_BRANCH_ACTIVATE:
2567         case LFUN_BRANCH_DEACTIVATE:
2568         case LFUN_BRANCH_MASTER_ACTIVATE:
2569         case LFUN_BRANCH_MASTER_DEACTIVATE: {
2570                 bool const master = (func.action() == LFUN_BRANCH_MASTER_ACTIVATE
2571                                      || func.action() == LFUN_BRANCH_MASTER_DEACTIVATE);
2572                 Buffer * buf = master ? const_cast<Buffer *>(masterBuffer())
2573                                       : this;
2574
2575                 docstring const branch_name = func.argument();
2576                 // the case without a branch name is handled elsewhere
2577                 if (branch_name.empty()) {
2578                         dispatched = false;
2579                         break;
2580                 }
2581                 Branch * branch = buf->params().branchlist().find(branch_name);
2582                 if (!branch) {
2583                         LYXERR0("Branch " << branch_name << " does not exist.");
2584                         dr.setError(true);
2585                         docstring const msg =
2586                                 bformat(_("Branch \"%1$s\" does not exist."), branch_name);
2587                         dr.setMessage(msg);
2588                         break;
2589                 }
2590                 bool const activate = (func.action() == LFUN_BRANCH_ACTIVATE
2591                                        || func.action() == LFUN_BRANCH_MASTER_ACTIVATE);
2592                 if (branch->isSelected() != activate) {
2593                         buf->undo().recordUndoBufferParams(CursorData());
2594                         branch->setSelected(activate);
2595                         dr.setError(false);
2596                         dr.screenUpdate(Update::Force);
2597                         dr.forceBufferUpdate();
2598                 }
2599                 break;
2600         }
2601
2602         case LFUN_BRANCH_ADD: {
2603                 docstring branch_name = func.argument();
2604                 if (branch_name.empty()) {
2605                         dispatched = false;
2606                         break;
2607                 }
2608                 BranchList & branch_list = params().branchlist();
2609                 vector<docstring> const branches =
2610                         getVectorFromString(branch_name, branch_list.separator());
2611                 docstring msg;
2612                 for (vector<docstring>::const_iterator it = branches.begin();
2613                      it != branches.end(); ++it) {
2614                         branch_name = *it;
2615                         Branch * branch = branch_list.find(branch_name);
2616                         if (branch) {
2617                                 LYXERR0("Branch " << branch_name << " already exists.");
2618                                 dr.setError(true);
2619                                 if (!msg.empty())
2620                                         msg += ("\n");
2621                                 msg += bformat(_("Branch \"%1$s\" already exists."), branch_name);
2622                         } else {
2623                                 undo().recordUndoBufferParams(CursorData());
2624                                 branch_list.add(branch_name);
2625                                 branch = branch_list.find(branch_name);
2626                                 string const x11hexname = X11hexname(branch->color());
2627                                 docstring const str = branch_name + ' ' + from_ascii(x11hexname);
2628                                 lyx::dispatch(FuncRequest(LFUN_SET_COLOR, str));
2629                                 dr.setError(false);
2630                                 dr.screenUpdate(Update::Force);
2631                         }
2632                 }
2633                 if (!msg.empty())
2634                         dr.setMessage(msg);
2635                 break;
2636         }
2637
2638         case LFUN_BRANCHES_RENAME: {
2639                 if (func.argument().empty())
2640                         break;
2641
2642                 docstring const oldname = from_utf8(func.getArg(0));
2643                 docstring const newname = from_utf8(func.getArg(1));
2644                 InsetIterator it  = inset_iterator_begin(inset());
2645                 InsetIterator const end = inset_iterator_end(inset());
2646                 bool success = false;
2647                 for (; it != end; ++it) {
2648                         if (it->lyxCode() == BRANCH_CODE) {
2649                                 InsetBranch & ins = static_cast<InsetBranch &>(*it);
2650                                 if (ins.branch() == oldname) {
2651                                         undo().recordUndo(CursorData(it));
2652                                         ins.rename(newname);
2653                                         success = true;
2654                                         continue;
2655                                 }
2656                         }
2657                         if (it->lyxCode() == INCLUDE_CODE) {
2658                                 // get buffer of external file
2659                                 InsetInclude const & ins =
2660                                         static_cast<InsetInclude const &>(*it);
2661                                 Buffer * child = ins.getChildBuffer();
2662                                 if (!child)
2663                                         continue;
2664                                 child->dispatch(func, dr);
2665                         }
2666                 }
2667
2668                 if (success) {
2669                         dr.screenUpdate(Update::Force);
2670                         dr.forceBufferUpdate();
2671                 }
2672                 break;
2673         }
2674
2675         case LFUN_BUFFER_VIEW_CACHE:
2676                 if (!formats.view(*this, d->preview_file_,
2677                                   d->preview_format_))
2678                         dr.setMessage(_("Error viewing the output file."));
2679                 break;
2680
2681         default:
2682                 dispatched = false;
2683                 break;
2684         }
2685         dr.dispatched(dispatched);
2686         undo().endUndoGroup();
2687 }
2688
2689
2690 void Buffer::changeLanguage(Language const * from, Language const * to)
2691 {
2692         LASSERT(from, return);
2693         LASSERT(to, return);
2694
2695         for_each(par_iterator_begin(),
2696                  par_iterator_end(),
2697                  bind(&Paragraph::changeLanguage, _1, params(), from, to));
2698 }
2699
2700
2701 bool Buffer::isMultiLingual() const
2702 {
2703         ParConstIterator end = par_iterator_end();
2704         for (ParConstIterator it = par_iterator_begin(); it != end; ++it)
2705                 if (it->isMultiLingual(params()))
2706                         return true;
2707
2708         return false;
2709 }
2710
2711
2712 std::set<Language const *> Buffer::getLanguages() const
2713 {
2714         std::set<Language const *> languages;
2715         getLanguages(languages);
2716         return languages;
2717 }
2718
2719
2720 void Buffer::getLanguages(std::set<Language const *> & languages) const
2721 {
2722         ParConstIterator end = par_iterator_end();
2723         // add the buffer language, even if it's not actively used
2724         languages.insert(language());
2725         // iterate over the paragraphs
2726         for (ParConstIterator it = par_iterator_begin(); it != end; ++it)
2727                 it->getLanguages(languages);
2728         // also children
2729         ListOfBuffers clist = getDescendents();
2730         ListOfBuffers::const_iterator cit = clist.begin();
2731         ListOfBuffers::const_iterator const cen = clist.end();
2732         for (; cit != cen; ++cit)
2733                 (*cit)->getLanguages(languages);
2734 }
2735
2736
2737 DocIterator Buffer::getParFromID(int const id) const
2738 {
2739         Buffer * buf = const_cast<Buffer *>(this);
2740         if (id < 0) {
2741                 // John says this is called with id == -1 from undo
2742                 lyxerr << "getParFromID(), id: " << id << endl;
2743                 return doc_iterator_end(buf);
2744         }
2745
2746         for (DocIterator it = doc_iterator_begin(buf); !it.atEnd(); it.forwardPar())
2747                 if (it.paragraph().id() == id)
2748                         return it;
2749
2750         return doc_iterator_end(buf);
2751 }
2752
2753
2754 bool Buffer::hasParWithID(int const id) const
2755 {
2756         return !getParFromID(id).atEnd();
2757 }
2758
2759
2760 ParIterator Buffer::par_iterator_begin()
2761 {
2762         return ParIterator(doc_iterator_begin(this));
2763 }
2764
2765
2766 ParIterator Buffer::par_iterator_end()
2767 {
2768         return ParIterator(doc_iterator_end(this));
2769 }
2770
2771
2772 ParConstIterator Buffer::par_iterator_begin() const
2773 {
2774         return ParConstIterator(doc_iterator_begin(this));
2775 }
2776
2777
2778 ParConstIterator Buffer::par_iterator_end() const
2779 {
2780         return ParConstIterator(doc_iterator_end(this));
2781 }
2782
2783
2784 Language const * Buffer::language() const
2785 {
2786         return params().language;
2787 }
2788
2789
2790 docstring const Buffer::B_(string const & l10n) const
2791 {
2792         return params().B_(l10n);
2793 }
2794
2795
2796 bool Buffer::isClean() const
2797 {
2798         return d->lyx_clean;
2799 }
2800
2801
2802 bool Buffer::isExternallyModified(CheckMethod method) const
2803 {
2804         LASSERT(d->filename.exists(), return false);
2805         // if method == timestamp, check timestamp before checksum
2806         return (method == checksum_method
2807                 || d->timestamp_ != d->filename.lastModified())
2808                 && d->checksum_ != d->filename.checksum();
2809 }
2810
2811
2812 void Buffer::saveCheckSum() const
2813 {
2814         FileName const & file = d->filename;
2815
2816         file.refresh();
2817         if (file.exists()) {
2818                 d->timestamp_ = file.lastModified();
2819                 d->checksum_ = file.checksum();
2820         } else {
2821                 // in the case of save to a new file.
2822                 d->timestamp_ = 0;
2823                 d->checksum_ = 0;
2824         }
2825 }
2826
2827
2828 void Buffer::markClean() const
2829 {
2830         if (!d->lyx_clean) {
2831                 d->lyx_clean = true;
2832                 updateTitles();
2833         }
2834         // if the .lyx file has been saved, we don't need an
2835         // autosave
2836         d->bak_clean = true;
2837         d->undo_.markDirty();
2838 }
2839
2840
2841 void Buffer::setUnnamed(bool flag)
2842 {
2843         d->unnamed = flag;
2844 }
2845
2846
2847 bool Buffer::isUnnamed() const
2848 {
2849         return d->unnamed;
2850 }
2851
2852
2853 /// \note
2854 /// Don't check unnamed, here: isInternal() is used in
2855 /// newBuffer(), where the unnamed flag has not been set by anyone
2856 /// yet. Also, for an internal buffer, there should be no need for
2857 /// retrieving fileName() nor for checking if it is unnamed or not.
2858 bool Buffer::isInternal() const
2859 {
2860         return d->internal_buffer;
2861 }
2862
2863
2864 void Buffer::setInternal(bool flag)
2865 {
2866         d->internal_buffer = flag;
2867 }
2868
2869
2870 void Buffer::markDirty()
2871 {
2872         if (d->lyx_clean) {
2873                 d->lyx_clean = false;
2874                 updateTitles();
2875         }
2876         d->bak_clean = false;
2877
2878         DepClean::iterator it = d->dep_clean.begin();
2879         DepClean::const_iterator const end = d->dep_clean.end();
2880
2881         for (; it != end; ++it)
2882                 it->second = false;
2883 }
2884
2885
2886 FileName Buffer::fileName() const
2887 {
2888         return d->filename;
2889 }
2890
2891
2892 string Buffer::absFileName() const
2893 {
2894         return d->filename.absFileName();
2895 }
2896
2897
2898 string Buffer::filePath() const
2899 {
2900         string const abs = d->filename.onlyPath().absFileName();
2901         if (abs.empty())
2902                 return abs;
2903         int last = abs.length() - 1;
2904
2905         return abs[last] == '/' ? abs : abs + '/';
2906 }
2907
2908
2909 string Buffer::originFilePath() const
2910 {
2911         if (FileName::isAbsolute(params().origin))
2912                 return params().origin;
2913
2914         return filePath();
2915 }
2916
2917
2918 string Buffer::layoutPos() const
2919 {
2920         return d->layout_position;
2921 }
2922
2923
2924 void Buffer::setLayoutPos(string const & path)
2925 {
2926         if (path.empty()) {
2927                 d->layout_position.clear();
2928                 return;
2929         }
2930
2931         LATTEST(FileName::isAbsolute(path));
2932
2933         d->layout_position =
2934                 to_utf8(makeRelPath(from_utf8(path), from_utf8(filePath())));
2935
2936         if (d->layout_position.empty())
2937                 d->layout_position = ".";
2938 }
2939
2940
2941 bool Buffer::isReadonly() const
2942 {
2943         return d->read_only;
2944 }
2945
2946
2947 void Buffer::setParent(Buffer const * buffer)
2948 {
2949         // Avoids recursive include.
2950         d->setParent(buffer == this ? 0 : buffer);
2951         updateMacros();
2952 }
2953
2954
2955 Buffer const * Buffer::parent() const
2956 {
2957         return d->parent();
2958 }
2959
2960
2961 ListOfBuffers Buffer::allRelatives() const
2962 {
2963         ListOfBuffers lb = masterBuffer()->getDescendents();
2964         lb.push_front(const_cast<Buffer *>(masterBuffer()));
2965         return lb;
2966 }
2967
2968
2969 Buffer const * Buffer::masterBuffer() const
2970 {
2971         // FIXME Should be make sure we are not in some kind
2972         // of recursive include? A -> B -> A will crash this.
2973         Buffer const * const pbuf = d->parent();
2974         if (!pbuf)
2975                 return this;
2976
2977         return pbuf->masterBuffer();
2978 }
2979
2980
2981 bool Buffer::isChild(Buffer * child) const
2982 {
2983         return d->children_positions.find(child) != d->children_positions.end();
2984 }
2985
2986
2987 DocIterator Buffer::firstChildPosition(Buffer const * child)
2988 {
2989         Impl::BufferPositionMap::iterator it;
2990         it = d->children_positions.find(child);
2991         if (it == d->children_positions.end())
2992                 return DocIterator(this);
2993         return it->second;
2994 }
2995
2996
2997 bool Buffer::hasChildren() const
2998 {
2999         return !d->children_positions.empty();
3000 }
3001
3002
3003 void Buffer::collectChildren(ListOfBuffers & clist, bool grand_children) const
3004 {
3005         // loop over children
3006         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
3007         Impl::BufferPositionMap::iterator end = d->children_positions.end();
3008         for (; it != end; ++it) {
3009                 Buffer * child = const_cast<Buffer *>(it->first);
3010                 // No duplicates
3011                 ListOfBuffers::const_iterator bit = find(clist.begin(), clist.end(), child);
3012                 if (bit != clist.end())
3013                         continue;
3014                 clist.push_back(child);
3015                 if (grand_children)
3016                         // there might be grandchildren
3017                         child->collectChildren(clist, true);
3018         }
3019 }
3020
3021
3022 ListOfBuffers Buffer::getChildren() const
3023 {
3024         ListOfBuffers v;
3025         collectChildren(v, false);
3026         // Make sure we have not included ourselves.
3027         ListOfBuffers::iterator bit = find(v.begin(), v.end(), this);
3028         if (bit != v.end()) {
3029                 LYXERR0("Recursive include detected in `" << fileName() << "'.");
3030                 v.erase(bit);
3031         }
3032         return v;
3033 }
3034
3035
3036 ListOfBuffers Buffer::getDescendents() const
3037 {
3038         ListOfBuffers v;
3039         collectChildren(v, true);
3040         // Make sure we have not included ourselves.
3041         ListOfBuffers::iterator bit = find(v.begin(), v.end(), this);
3042         if (bit != v.end()) {
3043                 LYXERR0("Recursive include detected in `" << fileName() << "'.");
3044                 v.erase(bit);
3045         }
3046         return v;
3047 }
3048
3049
3050 template<typename M>
3051 typename M::const_iterator greatest_below(M & m, typename M::key_type const & x)
3052 {
3053         if (m.empty())
3054                 return m.end();
3055
3056         typename M::const_iterator it = m.lower_bound(x);
3057         if (it == m.begin())
3058                 return m.end();
3059
3060         it--;
3061         return it;
3062 }
3063
3064
3065 MacroData const * Buffer::Impl::getBufferMacro(docstring const & name,
3066                                          DocIterator const & pos) const
3067 {
3068         LYXERR(Debug::MACROS, "Searching for " << to_ascii(name) << " at " << pos);
3069
3070         // if paragraphs have no macro context set, pos will be empty
3071         if (pos.empty())
3072                 return 0;
3073
3074         // we haven't found anything yet
3075         DocIterator bestPos = owner_->par_iterator_begin();
3076         MacroData const * bestData = 0;
3077
3078         // find macro definitions for name
3079         NamePositionScopeMacroMap::const_iterator nameIt = macros.find(name);
3080         if (nameIt != macros.end()) {
3081                 // find last definition in front of pos or at pos itself
3082                 PositionScopeMacroMap::const_iterator it
3083                         = greatest_below(nameIt->second, pos);
3084                 if (it != nameIt->second.end()) {
3085                         while (true) {
3086                                 // scope ends behind pos?
3087                                 if (pos < it->second.scope) {
3088                                         // Looks good, remember this. If there
3089                                         // is no external macro behind this,
3090                                         // we found the right one already.
3091                                         bestPos = it->first;
3092                                         bestData = &it->second.macro;
3093                                         break;
3094                                 }
3095
3096                                 // try previous macro if there is one
3097                                 if (it == nameIt->second.begin())
3098                                         break;
3099                                 --it;
3100                         }
3101                 }
3102         }
3103
3104         // find macros in included files
3105         PositionScopeBufferMap::const_iterator it
3106                 = greatest_below(position_to_children, pos);
3107         if (it == position_to_children.end())
3108                 // no children before
3109                 return bestData;
3110
3111         while (true) {
3112                 // do we know something better (i.e. later) already?
3113                 if (it->first < bestPos )
3114                         break;
3115
3116                 // scope ends behind pos?
3117                 if (pos < it->second.scope
3118                         && (cloned_buffer_ ||
3119                             theBufferList().isLoaded(it->second.buffer))) {
3120                         // look for macro in external file
3121                         macro_lock = true;
3122                         MacroData const * data
3123                                 = it->second.buffer->getMacro(name, false);
3124                         macro_lock = false;
3125                         if (data) {
3126                                 bestPos = it->first;
3127                                 bestData = data;
3128                                 break;
3129                         }
3130                 }
3131
3132                 // try previous file if there is one
3133                 if (it == position_to_children.begin())
3134                         break;
3135                 --it;
3136         }
3137
3138         // return the best macro we have found
3139         return bestData;
3140 }
3141
3142
3143 MacroData const * Buffer::getMacro(docstring const & name,
3144         DocIterator const & pos, bool global) const
3145 {
3146         if (d->macro_lock)
3147                 return 0;
3148
3149         // query buffer macros
3150         MacroData const * data = d->getBufferMacro(name, pos);
3151         if (data != 0)
3152                 return data;
3153
3154         // If there is a master buffer, query that
3155         Buffer const * const pbuf = d->parent();
3156         if (pbuf) {
3157                 d->macro_lock = true;
3158                 MacroData const * macro = pbuf->getMacro(
3159                         name, *this, false);
3160                 d->macro_lock = false;
3161                 if (macro)
3162                         return macro;
3163         }
3164
3165         if (global) {
3166                 data = MacroTable::globalMacros().get(name);
3167                 if (data != 0)
3168                         return data;
3169         }
3170
3171         return 0;
3172 }
3173
3174
3175 MacroData const * Buffer::getMacro(docstring const & name, bool global) const
3176 {
3177         // set scope end behind the last paragraph
3178         DocIterator scope = par_iterator_begin();
3179         scope.pit() = scope.lastpit() + 1;
3180
3181         return getMacro(name, scope, global);
3182 }
3183
3184
3185 MacroData const * Buffer::getMacro(docstring const & name,
3186         Buffer const & child, bool global) const
3187 {
3188         // look where the child buffer is included first
3189         Impl::BufferPositionMap::iterator it = d->children_positions.find(&child);
3190         if (it == d->children_positions.end())
3191                 return 0;
3192
3193         // check for macros at the inclusion position
3194         return getMacro(name, it->second, global);
3195 }
3196
3197
3198 void Buffer::Impl::updateMacros(DocIterator & it, DocIterator & scope)
3199 {
3200         pit_type const lastpit = it.lastpit();
3201
3202         // look for macros in each paragraph
3203         while (it.pit() <= lastpit) {
3204                 Paragraph & par = it.paragraph();
3205
3206                 // iterate over the insets of the current paragraph
3207                 InsetList const & insets = par.insetList();
3208                 InsetList::const_iterator iit = insets.begin();
3209                 InsetList::const_iterator end = insets.end();
3210                 for (; iit != end; ++iit) {
3211                         it.pos() = iit->pos;
3212
3213                         // is it a nested text inset?
3214                         if (iit->inset->asInsetText()) {
3215                                 // Inset needs its own scope?
3216                                 InsetText const * itext = iit->inset->asInsetText();
3217                                 bool newScope = itext->isMacroScope();
3218
3219                                 // scope which ends just behind the inset
3220                                 DocIterator insetScope = it;
3221                                 ++insetScope.pos();
3222
3223                                 // collect macros in inset
3224                                 it.push_back(CursorSlice(*iit->inset));
3225                                 updateMacros(it, newScope ? insetScope : scope);
3226                                 it.pop_back();
3227                                 continue;
3228                         }
3229
3230                         if (iit->inset->asInsetTabular()) {
3231                                 CursorSlice slice(*iit->inset);
3232                                 size_t const numcells = slice.nargs();
3233                                 for (; slice.idx() < numcells; slice.forwardIdx()) {
3234                                         it.push_back(slice);
3235                                         updateMacros(it, scope);
3236                                         it.pop_back();
3237                                 }
3238                                 continue;
3239                         }
3240
3241                         // is it an external file?
3242                         if (iit->inset->lyxCode() == INCLUDE_CODE) {
3243                                 // get buffer of external file
3244                                 InsetInclude const & inset =
3245                                         static_cast<InsetInclude const &>(*iit->inset);
3246                                 macro_lock = true;
3247                                 Buffer * child = inset.getChildBuffer();
3248                                 macro_lock = false;
3249                                 if (!child)
3250                                         continue;
3251
3252                                 // register its position, but only when it is
3253                                 // included first in the buffer
3254                                 if (children_positions.find(child) ==
3255                                         children_positions.end())
3256                                                 children_positions[child] = it;
3257
3258                                 // register child with its scope
3259                                 position_to_children[it] = Impl::ScopeBuffer(scope, child);
3260                                 continue;
3261                         }
3262
3263                         InsetMath * im = iit->inset->asInsetMath();
3264                         if (doing_export && im)  {
3265                                 InsetMathHull * hull = im->asHullInset();
3266                                 if (hull)
3267                                         hull->recordLocation(it);
3268                         }
3269
3270                         if (iit->inset->lyxCode() != MATHMACRO_CODE)
3271                                 continue;
3272
3273                         // get macro data
3274                         MathMacroTemplate & macroTemplate =
3275                                 *iit->inset->asInsetMath()->asMacroTemplate();
3276                         MacroContext mc(owner_, it);
3277                         macroTemplate.updateToContext(mc);
3278
3279                         // valid?
3280                         bool valid = macroTemplate.validMacro();
3281                         // FIXME: Should be fixNameAndCheckIfValid() in fact,
3282                         // then the BufferView's cursor will be invalid in
3283                         // some cases which leads to crashes.
3284                         if (!valid)
3285                                 continue;
3286
3287                         // register macro
3288                         // FIXME (Abdel), I don't understand why we pass 'it' here
3289                         // instead of 'macroTemplate' defined above... is this correct?
3290                         macros[macroTemplate.name()][it] =
3291                                 Impl::ScopeMacro(scope, MacroData(const_cast<Buffer *>(owner_), it));
3292                 }
3293
3294                 // next paragraph
3295                 it.pit()++;
3296                 it.pos() = 0;
3297         }
3298 }
3299
3300
3301 void Buffer::updateMacros() const
3302 {
3303         if (d->macro_lock)
3304                 return;
3305
3306         LYXERR(Debug::MACROS, "updateMacro of " << d->filename.onlyFileName());
3307
3308         // start with empty table
3309         d->macros.clear();
3310         d->children_positions.clear();
3311         d->position_to_children.clear();
3312
3313         // Iterate over buffer, starting with first paragraph
3314         // The scope must be bigger than any lookup DocIterator
3315         // later. For the global lookup, lastpit+1 is used, hence
3316         // we use lastpit+2 here.
3317         DocIterator it = par_iterator_begin();
3318         DocIterator outerScope = it;
3319         outerScope.pit() = outerScope.lastpit() + 2;
3320         d->updateMacros(it, outerScope);
3321 }
3322
3323
3324 void Buffer::getUsedBranches(std::list<docstring> & result, bool const from_master) const
3325 {
3326         InsetIterator it  = inset_iterator_begin(inset());
3327         InsetIterator const end = inset_iterator_end(inset());
3328         for (; it != end; ++it) {
3329                 if (it->lyxCode() == BRANCH_CODE) {
3330                         InsetBranch & br = static_cast<InsetBranch &>(*it);
3331                         docstring const name = br.branch();
3332                         if (!from_master && !params().branchlist().find(name))
3333                                 result.push_back(name);
3334                         else if (from_master && !masterBuffer()->params().branchlist().find(name))
3335                                 result.push_back(name);
3336                         continue;
3337                 }
3338                 if (it->lyxCode() == INCLUDE_CODE) {
3339                         // get buffer of external file
3340                         InsetInclude const & ins =
3341                                 static_cast<InsetInclude const &>(*it);
3342                         Buffer * child = ins.getChildBuffer();
3343                         if (!child)
3344                                 continue;
3345                         child->getUsedBranches(result, true);
3346                 }
3347         }
3348         // remove duplicates
3349         result.unique();
3350 }
3351
3352
3353 void Buffer::updateMacroInstances(UpdateType utype) const
3354 {
3355         LYXERR(Debug::MACROS, "updateMacroInstances for "
3356                 << d->filename.onlyFileName());
3357         DocIterator it = doc_iterator_begin(this);
3358         it.forwardInset();
3359         DocIterator const end = doc_iterator_end(this);
3360         for (; it != end; it.forwardInset()) {
3361                 // look for MathData cells in InsetMathNest insets
3362                 InsetMath * minset = it.nextInset()->asInsetMath();
3363                 if (!minset)
3364                         continue;
3365
3366                 // update macro in all cells of the InsetMathNest
3367                 DocIterator::idx_type n = minset->nargs();
3368                 MacroContext mc = MacroContext(this, it);
3369                 for (DocIterator::idx_type i = 0; i < n; ++i) {
3370                         MathData & data = minset->cell(i);
3371                         data.updateMacros(0, mc, utype);
3372                 }
3373         }
3374 }
3375
3376
3377 void Buffer::listMacroNames(MacroNameSet & macros) const
3378 {
3379         if (d->macro_lock)
3380                 return;
3381
3382         d->macro_lock = true;
3383
3384         // loop over macro names
3385         Impl::NamePositionScopeMacroMap::iterator nameIt = d->macros.begin();
3386         Impl::NamePositionScopeMacroMap::iterator nameEnd = d->macros.end();
3387         for (; nameIt != nameEnd; ++nameIt)
3388                 macros.insert(nameIt->first);
3389
3390         // loop over children
3391         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
3392         Impl::BufferPositionMap::iterator end = d->children_positions.end();
3393         for (; it != end; ++it)
3394                 it->first->listMacroNames(macros);
3395
3396         // call parent
3397         Buffer const * const pbuf = d->parent();
3398         if (pbuf)
3399                 pbuf->listMacroNames(macros);
3400
3401         d->macro_lock = false;
3402 }
3403
3404
3405 void Buffer::listParentMacros(MacroSet & macros, LaTeXFeatures & features) const
3406 {
3407         Buffer const * const pbuf = d->parent();
3408         if (!pbuf)
3409                 return;
3410
3411         MacroNameSet names;
3412         pbuf->listMacroNames(names);
3413
3414         // resolve macros
3415         MacroNameSet::iterator it = names.begin();
3416         MacroNameSet::iterator end = names.end();
3417         for (; it != end; ++it) {
3418                 // defined?
3419                 MacroData const * data =
3420                 pbuf->getMacro(*it, *this, false);
3421                 if (data) {
3422                         macros.insert(data);
3423
3424                         // we cannot access the original MathMacroTemplate anymore
3425                         // here to calls validate method. So we do its work here manually.
3426                         // FIXME: somehow make the template accessible here.
3427                         if (data->optionals() > 0)
3428                                 features.require("xargs");
3429                 }
3430         }
3431 }
3432
3433
3434 Buffer::References & Buffer::getReferenceCache(docstring const & label)
3435 {
3436         if (d->parent())
3437                 return const_cast<Buffer *>(masterBuffer())->getReferenceCache(label);
3438
3439         RefCache::iterator it = d->ref_cache_.find(label);
3440         if (it != d->ref_cache_.end())
3441                 return it->second.second;
3442
3443         static InsetLabel const * dummy_il = 0;
3444         static References const dummy_refs;
3445         it = d->ref_cache_.insert(
3446                 make_pair(label, make_pair(dummy_il, dummy_refs))).first;
3447         return it->second.second;
3448 }
3449
3450
3451 Buffer::References const & Buffer::references(docstring const & label) const
3452 {
3453         return const_cast<Buffer *>(this)->getReferenceCache(label);
3454 }
3455
3456
3457 void Buffer::addReference(docstring const & label, Inset * inset, ParIterator it)
3458 {
3459         References & refs = getReferenceCache(label);
3460         refs.push_back(make_pair(inset, it));
3461 }
3462
3463
3464 void Buffer::setInsetLabel(docstring const & label, InsetLabel const * il)
3465 {
3466         masterBuffer()->d->ref_cache_[label].first = il;
3467 }
3468
3469
3470 InsetLabel const * Buffer::insetLabel(docstring const & label) const
3471 {
3472         return masterBuffer()->d->ref_cache_[label].first;
3473 }
3474
3475
3476 void Buffer::clearReferenceCache() const
3477 {
3478         if (!d->parent())
3479                 d->ref_cache_.clear();
3480 }
3481
3482
3483 void Buffer::changeRefsIfUnique(docstring const & from, docstring const & to)
3484 {
3485         //FIXME: This does not work for child documents yet.
3486         reloadBibInfoCache();
3487
3488         // Check if the label 'from' appears more than once
3489         BiblioInfo const & keys = masterBibInfo();
3490         BiblioInfo::const_iterator bit  = keys.begin();
3491         BiblioInfo::const_iterator bend = keys.end();
3492         vector<docstring> labels;
3493
3494         for (; bit != bend; ++bit)
3495                 // FIXME UNICODE
3496                 labels.push_back(bit->first);
3497
3498         if (count(labels.begin(), labels.end(), from) > 1)
3499                 return;
3500
3501         string const paramName = "key";
3502         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
3503                 if (it->lyxCode() != CITE_CODE)
3504                         continue;
3505                 InsetCommand * inset = it->asInsetCommand();
3506                 docstring const oldValue = inset->getParam(paramName);
3507                 if (oldValue == from)
3508                         inset->setParam(paramName, to);
3509         }
3510 }
3511
3512
3513 void Buffer::getSourceCode(odocstream & os, string const & format,
3514                            pit_type par_begin, pit_type par_end,
3515                            OutputWhat output, bool master) const
3516 {
3517         OutputParams runparams(&params().encoding());
3518         runparams.nice = true;
3519         runparams.flavor = params().getOutputFlavor(format);
3520         runparams.linelen = lyxrc.plaintext_linelen;
3521         // No side effect of file copying and image conversion
3522         runparams.dryrun = true;
3523
3524         if (output == CurrentParagraph) {
3525                 runparams.par_begin = par_begin;
3526                 runparams.par_end = par_end;
3527                 if (par_begin + 1 == par_end) {
3528                         os << "% "
3529                            << bformat(_("Preview source code for paragraph %1$d"), par_begin)
3530                            << "\n\n";
3531                 } else {
3532                         os << "% "
3533                            << bformat(_("Preview source code from paragraph %1$s to %2$s"),
3534                                         convert<docstring>(par_begin),
3535                                         convert<docstring>(par_end - 1))
3536                            << "\n\n";
3537                 }
3538                 // output paragraphs
3539                 if (runparams.flavor == OutputParams::LYX) {
3540                         Paragraph const & par = text().paragraphs()[par_begin];
3541                         ostringstream ods;
3542                         depth_type dt = par.getDepth();
3543                         par.write(ods, params(), dt);
3544                         os << from_utf8(ods.str());
3545                 } else if (runparams.flavor == OutputParams::HTML) {
3546                         XHTMLStream xs(os);
3547                         setMathFlavor(runparams);
3548                         xhtmlParagraphs(text(), *this, xs, runparams);
3549                 } else if (runparams.flavor == OutputParams::TEXT) {
3550                         bool dummy = false;
3551                         // FIXME Handles only one paragraph, unlike the others.
3552                         // Probably should have some routine with a signature like them.
3553                         writePlaintextParagraph(*this,
3554                                 text().paragraphs()[par_begin], os, runparams, dummy);
3555                 } else if (params().isDocBook()) {
3556                         docbookParagraphs(text(), *this, os, runparams);
3557                 } else {
3558                         // If we are previewing a paragraph, even if this is the
3559                         // child of some other buffer, let's cut the link here,
3560                         // so that no concurring settings from the master
3561                         // (e.g. branch state) interfere (see #8101).
3562                         if (!master)
3563                                 d->ignore_parent = true;
3564                         // We need to validate the Buffer params' features here
3565                         // in order to know if we should output polyglossia
3566                         // macros (instead of babel macros)
3567                         LaTeXFeatures features(*this, params(), runparams);
3568                         params().validate(features);
3569                         runparams.use_polyglossia = features.usePolyglossia();
3570                         TexRow texrow;
3571                         texrow.reset();
3572                         texrow.newline();
3573                         texrow.newline();
3574                         // latex or literate
3575                         otexstream ots(os, texrow);
3576
3577                         // the real stuff
3578                         latexParagraphs(*this, text(), ots, runparams);
3579
3580                         // Restore the parenthood
3581                         if (!master)
3582                                 d->ignore_parent = false;
3583                 }
3584         } else {
3585                 os << "% ";
3586                 if (output == FullSource)
3587                         os << _("Preview source code");
3588                 else if (output == OnlyPreamble)
3589                         os << _("Preview preamble");
3590                 else if (output == OnlyBody)
3591                         os << _("Preview body");
3592                 os << "\n\n";
3593                 if (runparams.flavor == OutputParams::LYX) {
3594                         ostringstream ods;
3595                         if (output == FullSource)
3596                                 write(ods);
3597                         else if (output == OnlyPreamble)
3598                                 params().writeFile(ods, this);
3599                         else if (output == OnlyBody)
3600                                 text().write(ods);
3601                         os << from_utf8(ods.str());
3602                 } else if (runparams.flavor == OutputParams::HTML) {
3603                         writeLyXHTMLSource(os, runparams, output);
3604                 } else if (runparams.flavor == OutputParams::TEXT) {
3605                         if (output == OnlyPreamble) {
3606                                 os << "% "<< _("Plain text does not have a preamble.");
3607                         } else
3608                                 writePlaintextFile(*this, os, runparams);
3609                 } else if (params().isDocBook()) {
3610                                 writeDocBookSource(os, absFileName(), runparams, output);
3611                 } else {
3612                         // latex or literate
3613                         d->texrow.reset();
3614                         d->texrow.newline();
3615                         d->texrow.newline();
3616                         otexstream ots(os, d->texrow);
3617                         if (master)
3618                                 runparams.is_child = true;
3619                         writeLaTeXSource(ots, string(), runparams, output);
3620                 }
3621         }
3622 }
3623
3624
3625 ErrorList & Buffer::errorList(string const & type) const
3626 {
3627         return d->errorLists[type];
3628 }
3629
3630
3631 void Buffer::updateTocItem(std::string const & type,
3632         DocIterator const & dit) const
3633 {
3634         if (d->gui_)
3635                 d->gui_->updateTocItem(type, dit);
3636 }
3637
3638
3639 void Buffer::structureChanged() const
3640 {
3641         if (d->gui_)
3642                 d->gui_->structureChanged();
3643 }
3644
3645
3646 void Buffer::errors(string const & err, bool from_master) const
3647 {
3648         if (d->gui_)
3649                 d->gui_->errors(err, from_master);
3650 }
3651
3652
3653 void Buffer::message(docstring const & msg) const
3654 {
3655         if (d->gui_)
3656                 d->gui_->message(msg);
3657 }
3658
3659
3660 void Buffer::setBusy(bool on) const
3661 {
3662         if (d->gui_)
3663                 d->gui_->setBusy(on);
3664 }
3665
3666
3667 void Buffer::updateTitles() const
3668 {
3669         if (d->wa_)
3670                 d->wa_->updateTitles();
3671 }
3672
3673
3674 void Buffer::resetAutosaveTimers() const
3675 {
3676         if (d->gui_)
3677                 d->gui_->resetAutosaveTimers();
3678 }
3679
3680
3681 bool Buffer::hasGuiDelegate() const
3682 {
3683         return d->gui_;
3684 }
3685
3686
3687 void Buffer::setGuiDelegate(frontend::GuiBufferDelegate * gui)
3688 {
3689         d->gui_ = gui;
3690 }
3691
3692
3693
3694 namespace {
3695
3696 class AutoSaveBuffer : public ForkedProcess {
3697 public:
3698         ///
3699         AutoSaveBuffer(Buffer const & buffer, FileName const & fname)
3700                 : buffer_(buffer), fname_(fname) {}
3701         ///
3702         virtual shared_ptr<ForkedProcess> clone() const
3703         {
3704                 return shared_ptr<ForkedProcess>(new AutoSaveBuffer(*this));
3705         }
3706         ///
3707         int start()
3708         {
3709                 command_ = to_utf8(bformat(_("Auto-saving %1$s"),
3710                                                  from_utf8(fname_.absFileName())));
3711                 return run(DontWait);
3712         }
3713 private:
3714         ///
3715         virtual int generateChild();
3716         ///
3717         Buffer const & buffer_;
3718         FileName fname_;
3719 };
3720
3721
3722 int AutoSaveBuffer::generateChild()
3723 {
3724 #if defined(__APPLE__)
3725         /* FIXME fork() is not usable for autosave on Mac OS X 10.6 (snow leopard)
3726          *   We should use something else like threads.
3727          *
3728          * Since I do not know how to determine at run time what is the OS X
3729          * version, I just disable forking altogether for now (JMarc)
3730          */
3731         pid_t const pid = -1;
3732 #else
3733         // tmp_ret will be located (usually) in /tmp
3734         // will that be a problem?
3735         // Note that this calls ForkedCalls::fork(), so it's
3736         // ok cross-platform.
3737         pid_t const pid = fork();
3738         // If you want to debug the autosave
3739         // you should set pid to -1, and comment out the fork.
3740         if (pid != 0 && pid != -1)
3741                 return pid;
3742 #endif
3743
3744         // pid = -1 signifies that lyx was unable
3745         // to fork. But we will do the save
3746         // anyway.
3747         bool failed = false;
3748         TempFile tempfile("lyxautoXXXXXX.lyx");
3749         tempfile.setAutoRemove(false);
3750         FileName const tmp_ret = tempfile.name();
3751         if (!tmp_ret.empty()) {
3752                 if (!buffer_.writeFile(tmp_ret))
3753                         failed = true;
3754                 else if (!tmp_ret.moveTo(fname_))
3755                         failed = true;
3756         } else
3757                 failed = true;
3758
3759         if (failed) {
3760                 // failed to write/rename tmp_ret so try writing direct
3761                 if (!buffer_.writeFile(fname_)) {
3762                         // It is dangerous to do this in the child,
3763                         // but safe in the parent, so...
3764                         if (pid == -1) // emit message signal.
3765                                 buffer_.message(_("Autosave failed!"));
3766                 }
3767         }
3768
3769         if (pid == 0) // we are the child so...
3770                 _exit(0);
3771
3772         return pid;
3773 }
3774
3775 } // namespace anon
3776
3777
3778 FileName Buffer::getEmergencyFileName() const
3779 {
3780         return FileName(d->filename.absFileName() + ".emergency");
3781 }
3782
3783
3784 FileName Buffer::getAutosaveFileName() const
3785 {
3786         // if the document is unnamed try to save in the backup dir, else
3787         // in the default document path, and as a last try in the filePath,
3788         // which will most often be the temporary directory
3789         string fpath;
3790         if (isUnnamed())
3791                 fpath = lyxrc.backupdir_path.empty() ? lyxrc.document_path
3792                         : lyxrc.backupdir_path;
3793         if (!isUnnamed() || fpath.empty() || !FileName(fpath).exists())
3794                 fpath = filePath();
3795
3796         string const fname = "#" + d->filename.onlyFileName() + "#";
3797
3798         return makeAbsPath(fname, fpath);
3799 }
3800
3801
3802 void Buffer::removeAutosaveFile() const
3803 {
3804         FileName const f = getAutosaveFileName();
3805         if (f.exists())
3806                 f.removeFile();
3807 }
3808
3809
3810 void Buffer::moveAutosaveFile(support::FileName const & oldauto) const
3811 {
3812         FileName const newauto = getAutosaveFileName();
3813         oldauto.refresh();
3814         if (newauto != oldauto && oldauto.exists())
3815                 if (!oldauto.moveTo(newauto))
3816                         LYXERR0("Unable to move autosave file `" << oldauto << "'!");
3817 }
3818
3819
3820 bool Buffer::autoSave() const
3821 {
3822         Buffer const * buf = d->cloned_buffer_ ? d->cloned_buffer_ : this;
3823         if (buf->d->bak_clean || isReadonly())
3824                 return true;
3825
3826         message(_("Autosaving current document..."));
3827         buf->d->bak_clean = true;
3828
3829         FileName const fname = getAutosaveFileName();
3830         LASSERT(d->cloned_buffer_, return false);
3831
3832         // If this buffer is cloned, we assume that
3833         // we are running in a separate thread already.
3834         TempFile tempfile("lyxautoXXXXXX.lyx");
3835         tempfile.setAutoRemove(false);
3836         FileName const tmp_ret = tempfile.name();
3837         if (!tmp_ret.empty()) {
3838                 writeFile(tmp_ret);
3839                 // assume successful write of tmp_ret
3840                 if (tmp_ret.moveTo(fname))
3841                         return true;
3842         }
3843         // failed to write/rename tmp_ret so try writing direct
3844         return writeFile(fname);
3845 }
3846
3847
3848 void Buffer::setExportStatus(bool e) const
3849 {
3850         d->doing_export = e;
3851         ListOfBuffers clist = getDescendents();
3852         ListOfBuffers::const_iterator cit = clist.begin();
3853         ListOfBuffers::const_iterator const cen = clist.end();
3854         for (; cit != cen; ++cit)
3855                 (*cit)->d->doing_export = e;
3856 }
3857
3858
3859 bool Buffer::isExporting() const
3860 {
3861         return d->doing_export;
3862 }
3863
3864
3865 Buffer::ExportStatus Buffer::doExport(string const & target, bool put_in_tempdir)
3866         const
3867 {
3868         string result_file;
3869         return doExport(target, put_in_tempdir, result_file);
3870 }
3871
3872 Buffer::ExportStatus Buffer::doExport(string const & target, bool put_in_tempdir,
3873         string & result_file) const
3874 {
3875         bool const update_unincluded =
3876                         params().maintain_unincluded_children
3877                         && !params().getIncludedChildren().empty();
3878
3879         // (1) export with all included children (omit \includeonly)
3880         if (update_unincluded) {
3881                 ExportStatus const status =
3882                         doExport(target, put_in_tempdir, true, result_file);
3883                 if (status != ExportSuccess)
3884                         return status;
3885         }
3886         // (2) export with included children only
3887         return doExport(target, put_in_tempdir, false, result_file);
3888 }
3889
3890
3891 void Buffer::setMathFlavor(OutputParams & op) const
3892 {
3893         switch (params().html_math_output) {
3894         case BufferParams::MathML:
3895                 op.math_flavor = OutputParams::MathAsMathML;
3896                 break;
3897         case BufferParams::HTML:
3898                 op.math_flavor = OutputParams::MathAsHTML;
3899                 break;
3900         case BufferParams::Images:
3901                 op.math_flavor = OutputParams::MathAsImages;
3902                 break;
3903         case BufferParams::LaTeX:
3904                 op.math_flavor = OutputParams::MathAsLaTeX;
3905                 break;
3906         }
3907 }
3908
3909
3910 Buffer::ExportStatus Buffer::doExport(string const & target, bool put_in_tempdir,
3911         bool includeall, string & result_file) const
3912 {
3913         LYXERR(Debug::FILES, "target=" << target);
3914         OutputParams runparams(&params().encoding());
3915         string format = target;
3916         string dest_filename;
3917         size_t pos = target.find(' ');
3918         if (pos != string::npos) {
3919                 dest_filename = target.substr(pos + 1, target.length() - pos - 1);
3920                 format = target.substr(0, pos);
3921                 runparams.export_folder = FileName(dest_filename).onlyPath().realPath();
3922                 FileName(dest_filename).onlyPath().createPath();
3923                 LYXERR(Debug::FILES, "format=" << format << ", dest_filename=" << dest_filename << ", export_folder=" << runparams.export_folder);
3924         }
3925         MarkAsExporting exporting(this);
3926         string backend_format;
3927         runparams.flavor = OutputParams::LATEX;
3928         runparams.linelen = lyxrc.plaintext_linelen;
3929         runparams.includeall = includeall;
3930         vector<string> backs = params().backends();
3931         Converters converters = theConverters();
3932         bool need_nice_file = false;
3933         if (find(backs.begin(), backs.end(), format) == backs.end()) {
3934                 // Get shortest path to format
3935                 converters.buildGraph();
3936                 Graph::EdgePath path;
3937                 for (vector<string>::const_iterator it = backs.begin();
3938                      it != backs.end(); ++it) {
3939                         Graph::EdgePath p = converters.getPath(*it, format);
3940                         if (!p.empty() && (path.empty() || p.size() < path.size())) {
3941                                 backend_format = *it;
3942                                 path = p;
3943                         }
3944                 }
3945                 if (path.empty()) {
3946                         if (!put_in_tempdir) {
3947                                 // Only show this alert if this is an export to a non-temporary
3948                                 // file (not for previewing).
3949                                 Alert::error(_("Couldn't export file"), bformat(
3950                                         _("No information for exporting the format %1$s."),
3951                                         formats.prettyName(format)));
3952                         }
3953                         return ExportNoPathToFormat;
3954                 }
3955                 runparams.flavor = converters.getFlavor(path, this);
3956                 Graph::EdgePath::const_iterator it = path.begin();
3957                 Graph::EdgePath::const_iterator en = path.end();
3958                 for (; it != en; ++it)
3959                         if (theConverters().get(*it).nice()) {
3960                                 need_nice_file = true;
3961                                 break;
3962                         }
3963
3964         } else {
3965                 backend_format = format;
3966                 LYXERR(Debug::FILES, "backend_format=" << backend_format);
3967                 // FIXME: Don't hardcode format names here, but use a flag
3968                 if (backend_format == "pdflatex")
3969                         runparams.flavor = OutputParams::PDFLATEX;
3970                 else if (backend_format == "luatex")
3971                         runparams.flavor = OutputParams::LUATEX;
3972                 else if (backend_format == "dviluatex")
3973                         runparams.flavor = OutputParams::DVILUATEX;
3974                 else if (backend_format == "xetex")
3975                         runparams.flavor = OutputParams::XETEX;
3976         }
3977
3978         string filename = latexName(false);
3979         filename = addName(temppath(), filename);
3980         filename = changeExtension(filename,
3981                                    formats.extension(backend_format));
3982         LYXERR(Debug::FILES, "filename=" << filename);
3983
3984         // Plain text backend
3985         if (backend_format == "text") {
3986                 runparams.flavor = OutputParams::TEXT;
3987                 writePlaintextFile(*this, FileName(filename), runparams);
3988         }
3989         // HTML backend
3990         else if (backend_format == "xhtml") {
3991                 runparams.flavor = OutputParams::HTML;
3992                 setMathFlavor(runparams);
3993                 makeLyXHTMLFile(FileName(filename), runparams);
3994         } else if (backend_format == "lyx")
3995                 writeFile(FileName(filename));
3996         // Docbook backend
3997         else if (params().isDocBook()) {
3998                 runparams.nice = !put_in_tempdir;
3999                 makeDocBookFile(FileName(filename), runparams);
4000         }
4001         // LaTeX backend
4002         else if (backend_format == format || need_nice_file) {
4003                 runparams.nice = true;
4004                 bool const success = makeLaTeXFile(FileName(filename), string(), runparams);
4005                 if (d->cloned_buffer_)
4006                         d->cloned_buffer_->d->errorLists["Export"] = d->errorLists["Export"];
4007                 if (!success)
4008                         return ExportError;
4009         } else if (!lyxrc.tex_allows_spaces
4010                    && contains(filePath(), ' ')) {
4011                 Alert::error(_("File name error"),
4012                            _("The directory path to the document cannot contain spaces."));
4013                 return ExportTexPathHasSpaces;
4014         } else {
4015                 runparams.nice = false;
4016                 bool const success = makeLaTeXFile(
4017                         FileName(filename), filePath(), runparams);
4018                 if (d->cloned_buffer_)
4019                         d->cloned_buffer_->d->errorLists["Export"] = d->errorLists["Export"];
4020                 if (!success)
4021                         return ExportError;
4022         }
4023
4024         string const error_type = (format == "program")
4025                 ? "Build" : params().bufferFormat();
4026         ErrorList & error_list = d->errorLists[error_type];
4027         string const ext = formats.extension(format);
4028         FileName const tmp_result_file(changeExtension(filename, ext));
4029         bool const success = converters.convert(this, FileName(filename),
4030                 tmp_result_file, FileName(absFileName()), backend_format, format,
4031                 error_list);
4032
4033         // Emit the signal to show the error list or copy it back to the
4034         // cloned Buffer so that it can be emitted afterwards.
4035         if (format != backend_format) {
4036                 if (runparams.silent)
4037                         error_list.clear();
4038                 else if (d->cloned_buffer_)
4039                         d->cloned_buffer_->d->errorLists[error_type] =
4040                                 d->errorLists[error_type];
4041                 else
4042                         errors(error_type);
4043                 // also to the children, in case of master-buffer-view
4044                 ListOfBuffers clist = getDescendents();
4045                 ListOfBuffers::const_iterator cit = clist.begin();
4046                 ListOfBuffers::const_iterator const cen = clist.end();
4047                 for (; cit != cen; ++cit) {
4048                         if (runparams.silent)
4049                                 (*cit)->d->errorLists[error_type].clear();
4050                         else if (d->cloned_buffer_) {
4051                                 // Enable reverse search by copying back the
4052                                 // texrow object to the cloned buffer.
4053                                 // FIXME: this is not thread safe.
4054                                 (*cit)->d->cloned_buffer_->d->texrow = (*cit)->d->texrow;
4055                                 (*cit)->d->cloned_buffer_->d->errorLists[error_type] =
4056                                         (*cit)->d->errorLists[error_type];
4057                         } else
4058                                 (*cit)->errors(error_type, true);
4059                 }
4060         }
4061
4062         if (d->cloned_buffer_) {
4063                 // Enable reverse dvi or pdf to work by copying back the texrow
4064                 // object to the cloned buffer.
4065                 // FIXME: There is a possibility of concurrent access to texrow
4066                 // here from the main GUI thread that should be securized.
4067                 d->cloned_buffer_->d->texrow = d->texrow;
4068                 string const error_type = params().bufferFormat();
4069                 d->cloned_buffer_->d->errorLists[error_type] = d->errorLists[error_type];
4070         }
4071
4072
4073         if (put_in_tempdir) {
4074                 result_file = tmp_result_file.absFileName();
4075                 return success ? ExportSuccess : ExportConverterError;
4076         }
4077
4078         if (dest_filename.empty())
4079                 result_file = changeExtension(d->exportFileName().absFileName(), ext);
4080         else
4081                 result_file = dest_filename;
4082         // We need to copy referenced files (e. g. included graphics
4083         // if format == "dvi") to the result dir.
4084         vector<ExportedFile> const files =
4085                 runparams.exportdata->externalFiles(format);
4086         string const dest = runparams.export_folder.empty() ?
4087                 onlyPath(result_file) : runparams.export_folder;
4088         bool use_force = use_gui ? lyxrc.export_overwrite == ALL_FILES
4089                                  : force_overwrite == ALL_FILES;
4090         CopyStatus status = use_force ? FORCE : SUCCESS;
4091
4092         vector<ExportedFile>::const_iterator it = files.begin();
4093         vector<ExportedFile>::const_iterator const en = files.end();
4094         for (; it != en && status != CANCEL; ++it) {
4095                 string const fmt = formats.getFormatFromFile(it->sourceName);
4096                 string fixedName = it->exportName;
4097                 if (!runparams.export_folder.empty()) {
4098                         // Relative pathnames starting with ../ will be sanitized
4099                         // if exporting to a different folder
4100                         while (fixedName.substr(0, 3) == "../")
4101                                 fixedName = fixedName.substr(3, fixedName.length() - 3);
4102                 }
4103                 FileName fixedFileName = makeAbsPath(fixedName, dest);
4104                 fixedFileName.onlyPath().createPath();
4105                 status = copyFile(fmt, it->sourceName,
4106                         fixedFileName,
4107                         it->exportName, status == FORCE,
4108                         runparams.export_folder.empty());
4109         }
4110
4111         if (status == CANCEL) {
4112                 message(_("Document export cancelled."));
4113                 return ExportCancel;
4114         }
4115
4116         if (tmp_result_file.exists()) {
4117                 // Finally copy the main file
4118                 use_force = use_gui ? lyxrc.export_overwrite != NO_FILES
4119                                     : force_overwrite != NO_FILES;
4120                 if (status == SUCCESS && use_force)
4121                         status = FORCE;
4122                 status = copyFile(format, tmp_result_file,
4123                         FileName(result_file), result_file,
4124                         status == FORCE);
4125                 if (status == CANCEL) {
4126                         message(_("Document export cancelled."));
4127                         return ExportCancel;
4128                 } else {
4129                         message(bformat(_("Document exported as %1$s "
4130                                 "to file `%2$s'"),
4131                                 formats.prettyName(format),
4132                                 makeDisplayPath(result_file)));
4133                 }
4134         } else {
4135                 // This must be a dummy converter like fax (bug 1888)
4136                 message(bformat(_("Document exported as %1$s"),
4137                         formats.prettyName(format)));
4138         }
4139
4140         return success ? ExportSuccess : ExportConverterError;
4141 }
4142
4143
4144 Buffer::ExportStatus Buffer::preview(string const & format) const
4145 {
4146         bool const update_unincluded =
4147                         params().maintain_unincluded_children
4148                         && !params().getIncludedChildren().empty();
4149         return preview(format, update_unincluded);
4150 }
4151
4152
4153 Buffer::ExportStatus Buffer::preview(string const & format, bool includeall) const
4154 {
4155         MarkAsExporting exporting(this);
4156         string result_file;
4157         // (1) export with all included children (omit \includeonly)
4158         if (includeall) {
4159                 ExportStatus const status = doExport(format, true, true, result_file);
4160                 if (status != ExportSuccess)
4161                         return status;
4162         }
4163         // (2) export with included children only
4164         ExportStatus const status = doExport(format, true, false, result_file);
4165         FileName const previewFile(result_file);
4166
4167         LATTEST (isClone());
4168         d->cloned_buffer_->d->preview_file_ = previewFile;
4169         d->cloned_buffer_->d->preview_format_ = format;
4170         d->cloned_buffer_->d->preview_error_ = (status != ExportSuccess);
4171
4172         if (status != ExportSuccess)
4173                 return status;
4174         if (previewFile.exists()) {
4175                 if (!formats.view(*this, previewFile, format))
4176                         return PreviewError;
4177                 else
4178                         return PreviewSuccess;
4179         }
4180         else {
4181                 // Successful export but no output file?
4182                 // Probably a bug in error detection.
4183                 LATTEST (status != ExportSuccess);
4184
4185                 return status;
4186         }
4187 }
4188
4189
4190 Buffer::ReadStatus Buffer::extractFromVC()
4191 {
4192         bool const found = LyXVC::file_not_found_hook(d->filename);
4193         if (!found)
4194                 return ReadFileNotFound;
4195         if (!d->filename.isReadableFile())
4196                 return ReadVCError;
4197         return ReadSuccess;
4198 }
4199
4200
4201 Buffer::ReadStatus Buffer::loadEmergency()
4202 {
4203         FileName const emergencyFile = getEmergencyFileName();
4204         if (!emergencyFile.exists()
4205                   || emergencyFile.lastModified() <= d->filename.lastModified())
4206                 return ReadFileNotFound;
4207
4208         docstring const file = makeDisplayPath(d->filename.absFileName(), 20);
4209         docstring const text = bformat(_("An emergency save of the document "
4210                 "%1$s exists.\n\nRecover emergency save?"), file);
4211
4212         int const load_emerg = Alert::prompt(_("Load emergency save?"), text,
4213                 0, 2, _("&Recover"), _("&Load Original"), _("&Cancel"));
4214
4215         switch (load_emerg)
4216         {
4217         case 0: {
4218                 docstring str;
4219                 ReadStatus const ret_llf = loadThisLyXFile(emergencyFile);
4220                 bool const success = (ret_llf == ReadSuccess);
4221                 if (success) {
4222                         if (isReadonly()) {
4223                                 Alert::warning(_("File is read-only"),
4224                                         bformat(_("An emergency file is successfully loaded, "
4225                                         "but the original file %1$s is marked read-only. "
4226                                         "Please make sure to save the document as a different "
4227                                         "file."), from_utf8(d->filename.absFileName())));
4228                         }
4229                         markDirty();
4230                         lyxvc().file_found_hook(d->filename);
4231                         str = _("Document was successfully recovered.");
4232                 } else
4233                         str = _("Document was NOT successfully recovered.");
4234                 str += "\n\n" + bformat(_("Remove emergency file now?\n(%1$s)"),
4235                         makeDisplayPath(emergencyFile.absFileName()));
4236
4237                 int const del_emerg =
4238                         Alert::prompt(_("Delete emergency file?"), str, 1, 1,
4239                                 _("&Remove"), _("&Keep"));
4240                 if (del_emerg == 0) {
4241                         emergencyFile.removeFile();
4242                         if (success)
4243                                 Alert::warning(_("Emergency file deleted"),
4244                                         _("Do not forget to save your file now!"), true);
4245                         }
4246                 return success ? ReadSuccess : ReadEmergencyFailure;
4247         }
4248         case 1: {
4249                 int const del_emerg =
4250                         Alert::prompt(_("Delete emergency file?"),
4251                                 _("Remove emergency file now?"), 1, 1,
4252                                 _("&Remove"), _("&Keep"));
4253                 if (del_emerg == 0)
4254                         emergencyFile.removeFile();
4255                 return ReadOriginal;
4256         }
4257
4258         default:
4259                 break;
4260         }
4261         return ReadCancel;
4262 }
4263
4264
4265 Buffer::ReadStatus Buffer::loadAutosave()
4266 {
4267         // Now check if autosave file is newer.
4268         FileName const autosaveFile = getAutosaveFileName();
4269         if (!autosaveFile.exists()
4270                   || autosaveFile.lastModified() <= d->filename.lastModified())
4271                 return ReadFileNotFound;
4272
4273         docstring const file = makeDisplayPath(d->filename.absFileName(), 20);
4274         docstring const text = bformat(_("The backup of the document %1$s "
4275                 "is newer.\n\nLoad the backup instead?"), file);
4276         int const ret = Alert::prompt(_("Load backup?"), text, 0, 2,
4277                 _("&Load backup"), _("Load &original"), _("&Cancel"));
4278
4279         switch (ret)
4280         {
4281         case 0: {
4282                 ReadStatus const ret_llf = loadThisLyXFile(autosaveFile);
4283                 // the file is not saved if we load the autosave file.
4284                 if (ret_llf == ReadSuccess) {
4285                         if (isReadonly()) {
4286                                 Alert::warning(_("File is read-only"),
4287                                         bformat(_("A backup file is successfully loaded, "
4288                                         "but the original file %1$s is marked read-only. "
4289                                         "Please make sure to save the document as a "
4290                                         "different file."),
4291                                         from_utf8(d->filename.absFileName())));
4292                         }
4293                         markDirty();
4294                         lyxvc().file_found_hook(d->filename);
4295                         return ReadSuccess;
4296                 }
4297                 return ReadAutosaveFailure;
4298         }
4299         case 1:
4300                 // Here we delete the autosave
4301                 autosaveFile.removeFile();
4302                 return ReadOriginal;
4303         default:
4304                 break;
4305         }
4306         return ReadCancel;
4307 }
4308
4309
4310 Buffer::ReadStatus Buffer::loadLyXFile()
4311 {
4312         if (!d->filename.isReadableFile()) {
4313                 ReadStatus const ret_rvc = extractFromVC();
4314                 if (ret_rvc != ReadSuccess)
4315                         return ret_rvc;
4316         }
4317
4318         ReadStatus const ret_re = loadEmergency();
4319         if (ret_re == ReadSuccess || ret_re == ReadCancel)
4320                 return ret_re;
4321
4322         ReadStatus const ret_ra = loadAutosave();
4323         if (ret_ra == ReadSuccess || ret_ra == ReadCancel)
4324                 return ret_ra;
4325
4326         return loadThisLyXFile(d->filename);
4327 }
4328
4329
4330 Buffer::ReadStatus Buffer::loadThisLyXFile(FileName const & fn)
4331 {
4332         return readFile(fn);
4333 }
4334
4335
4336 void Buffer::bufferErrors(TeXErrors const & terr, ErrorList & errorList) const
4337 {
4338         TeXErrors::Errors::const_iterator it = terr.begin();
4339         TeXErrors::Errors::const_iterator end = terr.end();
4340         ListOfBuffers clist = getDescendents();
4341         ListOfBuffers::const_iterator cen = clist.end();
4342
4343         for (; it != end; ++it) {
4344                 int id_start = -1;
4345                 int pos_start = -1;
4346                 int errorRow = it->error_in_line;
4347                 Buffer const * buf = 0;
4348                 Impl const * p = d;
4349                 if (it->child_name.empty())
4350                     p->texrow.getIdFromRow(errorRow, id_start, pos_start);
4351                 else {
4352                         // The error occurred in a child
4353                         ListOfBuffers::const_iterator cit = clist.begin();
4354                         for (; cit != cen; ++cit) {
4355                                 string const child_name =
4356                                         DocFileName(changeExtension(
4357                                                 (*cit)->absFileName(), "tex")).
4358                                                         mangledFileName();
4359                                 if (it->child_name != child_name)
4360                                         continue;
4361                                 (*cit)->d->texrow.getIdFromRow(errorRow,
4362                                                         id_start, pos_start);
4363                                 if (id_start != -1) {
4364                                         buf = d->cloned_buffer_
4365                                                 ? (*cit)->d->cloned_buffer_->d->owner_
4366                                                 : (*cit)->d->owner_;
4367                                         p = (*cit)->d;
4368                                         break;
4369                                 }
4370                         }
4371                 }
4372                 int id_end = -1;
4373                 int pos_end = -1;
4374                 bool found;
4375                 do {
4376                         ++errorRow;
4377                         found = p->texrow.getIdFromRow(errorRow, id_end, pos_end);
4378                 } while (found && id_start == id_end && pos_start == pos_end);
4379
4380                 if (id_start != id_end) {
4381                         // Next registered position is outside the inset where
4382                         // the error occurred, so signal end-of-paragraph
4383                         pos_end = 0;
4384                 }
4385
4386                 errorList.push_back(ErrorItem(it->error_desc,
4387                         it->error_text, id_start, pos_start, pos_end, buf));
4388         }
4389 }
4390
4391
4392 void Buffer::setBuffersForInsets() const
4393 {
4394         inset().setBuffer(const_cast<Buffer &>(*this));
4395 }
4396
4397
4398 void Buffer::updateBuffer(UpdateScope scope, UpdateType utype) const
4399 {
4400         LBUFERR(!text().paragraphs().empty());
4401
4402         // Use the master text class also for child documents
4403         Buffer const * const master = masterBuffer();
4404         DocumentClass const & textclass = master->params().documentClass();
4405
4406         // do this only if we are the top-level Buffer
4407         if (master == this) {
4408                 textclass.counters().reset(from_ascii("bibitem"));
4409                 reloadBibInfoCache();
4410         }
4411
4412         // keep the buffers to be children in this set. If the call from the
4413         // master comes back we can see which of them were actually seen (i.e.
4414         // via an InsetInclude). The remaining ones in the set need still be updated.
4415         static std::set<Buffer const *> bufToUpdate;
4416         if (scope == UpdateMaster) {
4417                 // If this is a child document start with the master
4418                 if (master != this) {
4419                         bufToUpdate.insert(this);
4420                         master->updateBuffer(UpdateMaster, utype);
4421                         // If the master buffer has no gui associated with it, then the TocModel is
4422                         // not updated during the updateBuffer call and TocModel::toc_ is invalid
4423                         // (bug 5699). The same happens if the master buffer is open in a different
4424                         // window. This test catches both possibilities.
4425                         // See: http://marc.info/?l=lyx-devel&m=138590578911716&w=2
4426                         // There remains a problem here: If there is another child open in yet a third
4427                         // window, that TOC is not updated. So some more general solution is needed at
4428                         // some point.
4429                         if (master->d->gui_ != d->gui_)
4430                                 structureChanged();
4431
4432                         // was buf referenced from the master (i.e. not in bufToUpdate anymore)?
4433                         if (bufToUpdate.find(this) == bufToUpdate.end())
4434                                 return;
4435                 }
4436
4437                 // start over the counters in the master
4438                 textclass.counters().reset();
4439         }
4440
4441         // update will be done below for this buffer
4442         bufToUpdate.erase(this);
4443
4444         // update all caches
4445         clearReferenceCache();
4446         updateMacros();
4447
4448         Buffer & cbuf = const_cast<Buffer &>(*this);
4449
4450         // do the real work
4451         ParIterator parit = cbuf.par_iterator_begin();
4452         updateBuffer(parit, utype);
4453
4454         if (master != this)
4455                 // TocBackend update will be done later.
4456                 return;
4457
4458         d->bibinfo_cache_valid_ = true;
4459         d->cite_labels_valid_ = true;
4460         cbuf.tocBackend().update(utype == OutputUpdate);
4461         if (scope == UpdateMaster)
4462                 cbuf.structureChanged();
4463 }
4464
4465
4466 static depth_type getDepth(DocIterator const & it)
4467 {
4468         depth_type depth = 0;
4469         for (size_t i = 0 ; i < it.depth() ; ++i)
4470                 if (!it[i].inset().inMathed())
4471                         depth += it[i].paragraph().getDepth() + 1;
4472         // remove 1 since the outer inset does not count
4473         return depth - 1;
4474 }
4475
4476 static depth_type getItemDepth(ParIterator const & it)
4477 {
4478         Paragraph const & par = *it;
4479         LabelType const labeltype = par.layout().labeltype;
4480
4481         if (labeltype != LABEL_ENUMERATE && labeltype != LABEL_ITEMIZE)
4482                 return 0;
4483
4484         // this will hold the lowest depth encountered up to now.
4485         depth_type min_depth = getDepth(it);
4486         ParIterator prev_it = it;
4487         while (true) {
4488                 if (prev_it.pit())
4489                         --prev_it.top().pit();
4490                 else {
4491                         // start of nested inset: go to outer par
4492                         prev_it.pop_back();
4493                         if (prev_it.empty()) {
4494                                 // start of document: nothing to do
4495                                 return 0;
4496                         }
4497                 }
4498
4499                 // We search for the first paragraph with same label
4500                 // that is not more deeply nested.
4501                 Paragraph & prev_par = *prev_it;
4502                 depth_type const prev_depth = getDepth(prev_it);
4503                 if (labeltype == prev_par.layout().labeltype) {
4504                         if (prev_depth < min_depth)
4505                                 return prev_par.itemdepth + 1;
4506                         if (prev_depth == min_depth)
4507                                 return prev_par.itemdepth;
4508                 }
4509                 min_depth = min(min_depth, prev_depth);
4510                 // small optimization: if we are at depth 0, we won't
4511                 // find anything else
4512                 if (prev_depth == 0)
4513                         return 0;
4514         }
4515 }
4516
4517
4518 static bool needEnumCounterReset(ParIterator const & it)
4519 {
4520         Paragraph const & par = *it;
4521         LASSERT(par.layout().labeltype == LABEL_ENUMERATE, return false);
4522         depth_type const cur_depth = par.getDepth();
4523         ParIterator prev_it = it;
4524         while (prev_it.pit()) {
4525                 --prev_it.top().pit();
4526                 Paragraph const & prev_par = *prev_it;
4527                 if (prev_par.getDepth() <= cur_depth)
4528                         return  prev_par.layout().labeltype != LABEL_ENUMERATE;
4529         }
4530         // start of nested inset: reset
4531         return true;
4532 }
4533
4534
4535 // set the label of a paragraph. This includes the counters.
4536 void Buffer::Impl::setLabel(ParIterator & it, UpdateType utype) const
4537 {
4538         BufferParams const & bp = owner_->masterBuffer()->params();
4539         DocumentClass const & textclass = bp.documentClass();
4540         Paragraph & par = it.paragraph();
4541         Layout const & layout = par.layout();
4542         Counters & counters = textclass.counters();
4543
4544         if (par.params().startOfAppendix()) {
4545                 // We want to reset the counter corresponding to toplevel sectioning
4546                 Layout const & lay = textclass.getTOCLayout();
4547                 docstring const cnt = lay.counter;
4548                 if (!cnt.empty())
4549                         counters.reset(cnt);
4550                 counters.appendix(true);
4551         }
4552         par.params().appendix(counters.appendix());
4553
4554         // Compute the item depth of the paragraph
4555         par.itemdepth = getItemDepth(it);
4556
4557         if (layout.margintype == MARGIN_MANUAL) {
4558                 if (par.params().labelWidthString().empty())
4559                         par.params().labelWidthString(par.expandLabel(layout, bp));
4560         } else if (layout.latextype == LATEX_BIB_ENVIRONMENT) {
4561                 // we do not need to do anything here, since the empty case is
4562                 // handled during export.
4563         } else {
4564                 par.params().labelWidthString(docstring());
4565         }
4566
4567         switch(layout.labeltype) {
4568         case LABEL_ITEMIZE: {
4569                 // At some point of time we should do something more
4570                 // clever here, like:
4571                 //   par.params().labelString(
4572                 //    bp.user_defined_bullet(par.itemdepth).getText());
4573                 // for now, use a simple hardcoded label
4574                 docstring itemlabel;
4575                 switch (par.itemdepth) {
4576                 case 0:
4577                         itemlabel = char_type(0x2022);
4578                         break;
4579                 case 1:
4580                         itemlabel = char_type(0x2013);
4581                         break;
4582                 case 2:
4583                         itemlabel = char_type(0x2217);
4584                         break;
4585                 case 3:
4586                         itemlabel = char_type(0x2219); // or 0x00b7
4587                         break;
4588                 }
4589                 par.params().labelString(itemlabel);
4590                 break;
4591         }
4592
4593         case LABEL_ENUMERATE: {
4594                 docstring enumcounter = layout.counter.empty() ? from_ascii("enum") : layout.counter;
4595
4596                 switch (par.itemdepth) {
4597                 case 2:
4598                         enumcounter += 'i';
4599                 case 1:
4600                         enumcounter += 'i';
4601                 case 0:
4602                         enumcounter += 'i';
4603                         break;
4604                 case 3:
4605                         enumcounter += "iv";
4606                         break;
4607                 default:
4608                         // not a valid enumdepth...
4609                         break;
4610                 }
4611
4612                 // Maybe we have to reset the enumeration counter.
4613                 if (needEnumCounterReset(it))
4614                         counters.reset(enumcounter);
4615                 counters.step(enumcounter, utype);
4616
4617                 string const & lang = par.getParLanguage(bp)->code();
4618                 par.params().labelString(counters.theCounter(enumcounter, lang));
4619
4620                 break;
4621         }
4622
4623         case LABEL_SENSITIVE: {
4624                 string const & type = counters.current_float();
4625                 docstring full_label;
4626                 if (type.empty())
4627                         full_label = owner_->B_("Senseless!!! ");
4628                 else {
4629                         docstring name = owner_->B_(textclass.floats().getType(type).name());
4630                         if (counters.hasCounter(from_utf8(type))) {
4631                                 string const & lang = par.getParLanguage(bp)->code();
4632                                 counters.step(from_utf8(type), utype);
4633                                 full_label = bformat(from_ascii("%1$s %2$s:"),
4634                                                      name,
4635                                                      counters.theCounter(from_utf8(type), lang));
4636                         } else
4637                                 full_label = bformat(from_ascii("%1$s #:"), name);
4638                 }
4639                 par.params().labelString(full_label);
4640                 break;
4641         }
4642
4643         case LABEL_NO_LABEL:
4644                 par.params().labelString(docstring());
4645                 break;
4646
4647         case LABEL_ABOVE:
4648         case LABEL_CENTERED:
4649         case LABEL_STATIC: {
4650                 docstring const & lcounter = layout.counter;
4651                 if (!lcounter.empty()) {
4652                         if (layout.toclevel <= bp.secnumdepth
4653                                                 && (layout.latextype != LATEX_ENVIRONMENT
4654                                         || it.text()->isFirstInSequence(it.pit()))) {
4655                                 if (counters.hasCounter(lcounter))
4656                                         counters.step(lcounter, utype);
4657                                 par.params().labelString(par.expandLabel(layout, bp));
4658                         } else
4659                                 par.params().labelString(docstring());
4660                 } else
4661                         par.params().labelString(par.expandLabel(layout, bp));
4662                 break;
4663         }
4664
4665         case LABEL_MANUAL:
4666         case LABEL_BIBLIO:
4667                 par.params().labelString(par.expandLabel(layout, bp));
4668         }
4669 }
4670
4671
4672 void Buffer::updateBuffer(ParIterator & parit, UpdateType utype) const
4673 {
4674         // LASSERT: Is it safe to continue here, or should we just return?
4675         LASSERT(parit.pit() == 0, /**/);
4676
4677         // Set the position of the text in the buffer to be able
4678         // to resolve macros in it.
4679         parit.text()->setMacrocontextPosition(parit);
4680
4681         depth_type maxdepth = 0;
4682         pit_type const lastpit = parit.lastpit();
4683         for ( ; parit.pit() <= lastpit ; ++parit.pit()) {
4684                 // reduce depth if necessary
4685                 if (parit->params().depth() > maxdepth) {
4686                         /** FIXME: this function is const, but
4687                          * nevertheless it modifies the buffer. To be
4688                          * cleaner, one should modify the buffer in
4689                          * another function, which is actually
4690                          * non-const. This would however be costly in
4691                          * terms of code duplication.
4692                          */
4693                         const_cast<Buffer *>(this)->undo().recordUndo(CursorData(parit));
4694                         parit->params().depth(maxdepth);
4695                 }
4696                 maxdepth = parit->getMaxDepthAfter();
4697
4698                 if (utype == OutputUpdate) {
4699                         // track the active counters
4700                         // we have to do this for the master buffer, since the local
4701                         // buffer isn't tracking anything.
4702                         masterBuffer()->params().documentClass().counters().
4703                                         setActiveLayout(parit->layout());
4704                 }
4705
4706                 // set the counter for this paragraph
4707                 d->setLabel(parit, utype);
4708
4709                 // now the insets
4710                 InsetList::const_iterator iit = parit->insetList().begin();
4711                 InsetList::const_iterator end = parit->insetList().end();
4712                 for (; iit != end; ++iit) {
4713                         parit.pos() = iit->pos;
4714                         iit->inset->updateBuffer(parit, utype);
4715                 }
4716         }
4717 }
4718
4719
4720 int Buffer::spellCheck(DocIterator & from, DocIterator & to,
4721         WordLangTuple & word_lang, docstring_list & suggestions) const
4722 {
4723         int progress = 0;
4724         WordLangTuple wl;
4725         suggestions.clear();
4726         word_lang = WordLangTuple();
4727         bool const to_end = to.empty();
4728         DocIterator const end = to_end ? doc_iterator_end(this) : to;
4729         // OK, we start from here.
4730         for (; from != end; from.forwardPos()) {
4731                 // This skips all insets with spell check disabled.
4732                 while (!from.allowSpellCheck()) {
4733                         from.pop_back();
4734                         from.pos()++;
4735                 }
4736                 // If from is at the end of the document (which is possible
4737                 // when "from" was changed above) LyX will crash later otherwise.
4738                 if (from.atEnd() || (!to_end && from >= end))
4739                         break;
4740                 to = from;
4741                 from.paragraph().spellCheck();
4742                 SpellChecker::Result res = from.paragraph().spellCheck(from.pos(), to.pos(), wl, suggestions);
4743                 if (SpellChecker::misspelled(res)) {
4744                         word_lang = wl;
4745                         break;
4746                 }
4747                 // Do not increase progress when from == to, otherwise the word
4748                 // count will be wrong.
4749                 if (from != to) {
4750                         from = to;
4751                         ++progress;
4752                 }
4753         }
4754         return progress;
4755 }
4756
4757
4758 void Buffer::Impl::updateStatistics(DocIterator & from, DocIterator & to, bool skipNoOutput)
4759 {
4760         bool inword = false;
4761         word_count_ = 0;
4762         char_count_ = 0;
4763         blank_count_ = 0;
4764
4765         for (DocIterator dit = from ; dit != to && !dit.atEnd(); ) {
4766                 if (!dit.inTexted()) {
4767                         dit.forwardPos();
4768                         continue;
4769                 }
4770
4771                 Paragraph const & par = dit.paragraph();
4772                 pos_type const pos = dit.pos();
4773
4774                 // Copied and adapted from isWordSeparator() in Paragraph
4775                 if (pos == dit.lastpos()) {
4776                         inword = false;
4777                 } else {
4778                         Inset const * ins = par.getInset(pos);
4779                         if (ins && skipNoOutput && !ins->producesOutput()) {
4780                                 // skip this inset
4781                                 ++dit.top().pos();
4782                                 // stop if end of range was skipped
4783                                 if (!to.atEnd() && dit >= to)
4784                                         break;
4785                                 continue;
4786                         } else if (!par.isDeleted(pos)) {
4787                                 if (par.isWordSeparator(pos))
4788                                         inword = false;
4789                                 else if (!inword) {
4790                                         ++word_count_;
4791                                         inword = true;
4792                                 }
4793                                 if (ins && ins->isLetter())
4794                                         ++char_count_;
4795                                 else if (ins && ins->isSpace())
4796                                         ++blank_count_;
4797                                 else {
4798                                         char_type const c = par.getChar(pos);
4799                                         if (isPrintableNonspace(c))
4800                                                 ++char_count_;
4801                                         else if (isSpace(c))
4802                                                 ++blank_count_;
4803                                 }
4804                         }
4805                 }
4806                 dit.forwardPos();
4807         }
4808 }
4809
4810
4811 void Buffer::updateStatistics(DocIterator & from, DocIterator & to, bool skipNoOutput) const
4812 {
4813         d->updateStatistics(from, to, skipNoOutput);
4814 }
4815
4816
4817 int Buffer::wordCount() const
4818 {
4819         return d->wordCount();
4820 }
4821
4822
4823 int Buffer::charCount(bool with_blanks) const
4824 {
4825         return d->charCount(with_blanks);
4826 }
4827
4828
4829 Buffer::ReadStatus Buffer::reload()
4830 {
4831         setBusy(true);
4832         // c.f. bug http://www.lyx.org/trac/ticket/6587
4833         removeAutosaveFile();
4834         // e.g., read-only status could have changed due to version control
4835         d->filename.refresh();
4836         docstring const disp_fn = makeDisplayPath(d->filename.absFileName());
4837
4838         // clear parent. this will get reset if need be.
4839         d->setParent(0);
4840         ReadStatus const status = loadLyXFile();
4841         if (status == ReadSuccess) {
4842                 updateBuffer();
4843                 changed(true);
4844                 updateTitles();
4845                 markClean();
4846                 message(bformat(_("Document %1$s reloaded."), disp_fn));
4847                 d->undo_.clear();
4848         } else {
4849                 message(bformat(_("Could not reload document %1$s."), disp_fn));
4850         }
4851         setBusy(false);
4852         removePreviews();
4853         updatePreviews();
4854         errors("Parse");
4855         return status;
4856 }
4857
4858
4859 bool Buffer::saveAs(FileName const & fn)
4860 {
4861         FileName const old_name = fileName();
4862         FileName const old_auto = getAutosaveFileName();
4863         bool const old_unnamed = isUnnamed();
4864         bool success = true;
4865         d->old_position = filePath();
4866
4867         setFileName(fn);
4868         markDirty();
4869         setUnnamed(false);
4870
4871         if (save()) {
4872                 // bring the autosave file with us, just in case.
4873                 moveAutosaveFile(old_auto);
4874                 // validate version control data and
4875                 // correct buffer title
4876                 lyxvc().file_found_hook(fileName());
4877                 updateTitles();
4878                 // the file has now been saved to the new location.
4879                 // we need to check that the locations of child buffers
4880                 // are still valid.
4881                 checkChildBuffers();
4882                 checkMasterBuffer();
4883         } else {
4884                 // save failed
4885                 // reset the old filename and unnamed state
4886                 setFileName(old_name);
4887                 setUnnamed(old_unnamed);
4888                 success = false;
4889         }
4890
4891         d->old_position.clear();
4892         return success;
4893 }
4894
4895
4896 void Buffer::checkChildBuffers()
4897 {
4898         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
4899         Impl::BufferPositionMap::iterator const en = d->children_positions.end();
4900         for (; it != en; ++it) {
4901                 DocIterator dit = it->second;
4902                 Buffer * cbuf = const_cast<Buffer *>(it->first);
4903                 if (!cbuf || !theBufferList().isLoaded(cbuf))
4904                         continue;
4905                 Inset * inset = dit.nextInset();
4906                 LASSERT(inset && inset->lyxCode() == INCLUDE_CODE, continue);
4907                 InsetInclude * inset_inc = static_cast<InsetInclude *>(inset);
4908                 docstring const & incfile = inset_inc->getParam("filename");
4909                 string oldloc = cbuf->absFileName();
4910                 string newloc = makeAbsPath(to_utf8(incfile),
4911                                 onlyPath(absFileName())).absFileName();
4912                 if (oldloc == newloc)
4913                         continue;
4914                 // the location of the child file is incorrect.
4915                 cbuf->setParent(0);
4916                 inset_inc->setChildBuffer(0);
4917         }
4918         // invalidate cache of children
4919         d->children_positions.clear();
4920         d->position_to_children.clear();
4921 }
4922
4923
4924 // If a child has been saved under a different name/path, it might have been
4925 // orphaned. Therefore the master needs to be reset (bug 8161).
4926 void Buffer::checkMasterBuffer()
4927 {
4928         Buffer const * const master = masterBuffer();
4929         if (master == this)
4930                 return;
4931
4932         // necessary to re-register the child (bug 5873)
4933         // FIXME: clean up updateMacros (here, only
4934         // child registering is needed).
4935         master->updateMacros();
4936         // (re)set master as master buffer, but only
4937         // if we are a real child
4938         if (master->isChild(this))
4939                 setParent(master);
4940         else
4941                 setParent(0);
4942 }
4943
4944
4945 string Buffer::includedFilePath(string const & name, string const & ext) const
4946 {
4947         bool isabsolute = FileName::isAbsolute(name);
4948         // old_position already contains a trailing path separator
4949         string const absname = isabsolute ? name : d->old_position + name;
4950
4951         if (d->old_position.empty() || d->old_position == filePath()
4952             || !FileName(addExtension(absname, ext)).exists())
4953                 return name;
4954
4955         if (isabsolute)
4956                 return to_utf8(makeRelPath(from_utf8(name), from_utf8(filePath())));
4957
4958         return to_utf8(makeRelPath(from_utf8(FileName(absname).realPath()),
4959                                    from_utf8(filePath())));
4960 }
4961
4962 } // namespace lyx