src/Buffer.cpp

   1 /**
   2  * \file Buffer.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author Stefan Schimanski
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "Buffer.h"
  15
  16 #include "Author.h"
  17 #include "LayoutFile.h"
  18 #include "BiblioInfo.h"
  19 #include "BranchList.h"
  20 #include "buffer_funcs.h"
  21 #include "BufferList.h"
  22 #include "BufferParams.h"
  23 #include "Bullet.h"
  24 #include "Chktex.h"
  25 #include "Converter.h"
  26 #include "Counters.h"
  27 #include "DispatchResult.h"
  28 #include "DocIterator.h"
  29 #include "Encoding.h"
  30 #include "ErrorList.h"
  31 #include "Exporter.h"
  32 #include "Format.h"
  33 #include "FuncRequest.h"
  34 #include "FuncStatus.h"
  35 #include "IndicesList.h"
  36 #include "InsetIterator.h"
  37 #include "InsetList.h"
  38 #include "Language.h"
  39 #include "LaTeXFeatures.h"
  40 #include "LaTeX.h"
  41 #include "Layout.h"
  42 #include "Lexer.h"
  43 #include "LyXAction.h"
  44 #include "LyX.h"
  45 #include "LyXRC.h"
  46 #include "LyXVC.h"
  47 #include "output_docbook.h"
  48 #include "output.h"
  49 #include "output_latex.h"
  50 #include "output_xhtml.h"
  51 #include "output_plaintext.h"
  52 #include "Paragraph.h"
  53 #include "ParagraphParameters.h"
  54 #include "ParIterator.h"
  55 #include "PDFOptions.h"
  56 #include "SpellChecker.h"
  57 #include "sgml.h"
  58 #include "TexRow.h"
  59 #include "TexStream.h"
  60 #include "Text.h"
  61 #include "TextClass.h"
  62 #include "TocBackend.h"
  63 #include "Undo.h"
  64 #include "VCBackend.h"
  65 #include "version.h"
  66 #include "WordLangTuple.h"
  67 #include "WordList.h"
  68
  69 #include "insets/InsetBibtex.h"
  70 #include "insets/InsetBranch.h"
  71 #include "insets/InsetInclude.h"
  72 #include "insets/InsetTabular.h"
  73 #include "insets/InsetText.h"
  74
  75 #include "mathed/InsetMathHull.h"
  76 #include "mathed/MacroTable.h"
  77 #include "mathed/MathMacroTemplate.h"
  78 #include "mathed/MathSupport.h"
  79
  80 #include "graphics/PreviewLoader.h"
  81
  82 #include "frontends/alert.h"
  83 #include "frontends/Delegates.h"
  84 #include "frontends/WorkAreaManager.h"
  85
  86 #include "support/lassert.h"
  87 #include "support/convert.h"
  88 #include "support/debug.h"
  89 #include "support/docstring_list.h"
  90 #include "support/ExceptionMessage.h"
  91 #include "support/FileName.h"
  92 #include "support/FileNameList.h"
  93 #include "support/filetools.h"
  94 #include "support/ForkedCalls.h"
  95 #include "support/gettext.h"
  96 #include "support/gzstream.h"
  97 #include "support/lstrings.h"
  98 #include "support/lyxalgo.h"
  99 #include "support/os.h"
 100 #include "support/Package.h"
 101 #include "support/Path.h"
 102 #include "support/Systemcall.h"
 103 #include "support/textutils.h"
 104 #include "support/types.h"
 105
 106 #include "support/bind.h"
 107 #include "support/shared_ptr.h"
 108
 109 #include <algorithm>
 110 #include <fstream>
 111 #include <iomanip>
 112 #include <map>
 113 #include <set>
 114 #include <sstream>
 115 #include <stack>
 116 #include <vector>
 117
 118 using namespace std;
 119 using namespace lyx::support;
 120 using namespace lyx::graphics;
 121
 122 namespace lyx {
 123
 124 namespace Alert = frontend::Alert;
 125 namespace os = support::os;
 126
 127 namespace {
 128
 129 int const LYX_FORMAT = LYX_FORMAT_LYX;
 130
 131 typedef map<string, bool> DepClean;
 132 typedef map<docstring, pair<InsetLabel const *, Buffer::References> > RefCache;
 133
 134 void showPrintError(string const & name)
 135 {
 136         docstring str = bformat(_("Could not print the document %1$s.\n"
 137                                             "Check that your printer is set up correctly."),
 138                              makeDisplayPath(name, 50));
 139         Alert::error(_("Print document failed"), str);
 140 }
 141
 142 } // namespace anon
 143
 144
 145 // A storehouse for the cloned buffers.
 146 list<CloneList *> cloned_buffers;
 147
 148
 149 class Buffer::Impl
 150 {
 151 public:
 152         Impl(Buffer * owner, FileName const & file, bool readonly, Buffer const * cloned_buffer);
 153
 154         ~Impl()
 155         {
 156                 delete preview_loader_;
 157                 if (wa_) {
 158                         wa_->closeAll();
 159                         delete wa_;
 160                 }
 161                 delete inset;
 162         }
 163
 164         /// search for macro in local (buffer) table or in children
 165         MacroData const * getBufferMacro(docstring const & name,
 166                 DocIterator const & pos) const;
 167
 168         /// Update macro table starting with position of it \param it in some
 169         /// text inset.
 170         void updateMacros(DocIterator & it, DocIterator & scope);
 171         ///
 172         void setLabel(ParIterator & it, UpdateType utype) const;
 173
 174         /** If we have branches that use the file suffix
 175             feature, return the file name with suffix appended.
 176         */
 177         support::FileName exportFileName() const;
 178
 179         Buffer * owner_;
 180
 181         BufferParams params;
 182         LyXVC lyxvc;
 183         FileName temppath;
 184         mutable TexRow texrow;
 185
 186         /// need to regenerate .tex?
 187         DepClean dep_clean;
 188
 189         /// is save needed?
 190         mutable bool lyx_clean;
 191
 192         /// is autosave needed?
 193         mutable bool bak_clean;
 194
 195         /// is this an unnamed file (New...)?
 196         bool unnamed;
 197
 198         /// buffer is r/o
 199         bool read_only;
 200
 201         /// name of the file the buffer is associated with.
 202         FileName filename;
 203
 204         /** Set to true only when the file is fully loaded.
 205          *  Used to prevent the premature generation of previews
 206          *  and by the citation inset.
 207          */
 208         bool file_fully_loaded;
 209
 210         ///
 211         mutable TocBackend toc_backend;
 212
 213         /// macro tables
 214         typedef pair<DocIterator, MacroData> ScopeMacro;
 215         typedef map<DocIterator, ScopeMacro> PositionScopeMacroMap;
 216         typedef map<docstring, PositionScopeMacroMap> NamePositionScopeMacroMap;
 217         /// map from the macro name to the position map,
 218         /// which maps the macro definition position to the scope and the MacroData.
 219         NamePositionScopeMacroMap macros;
 220         /// This seem to change the way Buffer::getMacro() works
 221         mutable bool macro_lock;
 222
 223         /// positions of child buffers in the buffer
 224         typedef map<Buffer const * const, DocIterator> BufferPositionMap;
 225         typedef pair<DocIterator, Buffer const *> ScopeBuffer;
 226         typedef map<DocIterator, ScopeBuffer> PositionScopeBufferMap;
 227         /// position of children buffers in this buffer
 228         BufferPositionMap children_positions;
 229         /// map from children inclusion positions to their scope and their buffer
 230         PositionScopeBufferMap position_to_children;
 231
 232         /// Container for all sort of Buffer dependant errors.
 233         map<string, ErrorList> errorLists;
 234
 235         /// timestamp and checksum used to test if the file has been externally
 236         /// modified. (Used to properly enable 'File->Revert to saved', bug 4114).
 237         time_t timestamp_;
 238         unsigned long checksum_;
 239
 240         ///
 241         frontend::WorkAreaManager * wa_;
 242         ///
 243         frontend::GuiBufferDelegate * gui_;
 244
 245         ///
 246         Undo undo_;
 247
 248         /// A cache for the bibfiles (including bibfiles of loaded child
 249         /// documents), needed for appropriate update of natbib labels.
 250         mutable support::FileNameList bibfiles_cache_;
 251
 252         // FIXME The caching mechanism could be improved. At present, we have a
 253         // cache for each Buffer, that caches all the bibliography info for that
 254         // Buffer. A more efficient solution would be to have a global cache per
 255         // file, and then to construct the Buffer's bibinfo from that.
 256         /// A cache for bibliography info
 257         mutable BiblioInfo bibinfo_;
 258         /// whether the bibinfo cache is valid
 259         mutable bool bibinfo_cache_valid_;
 260         /// whether the bibfile cache is valid
 261         mutable bool bibfile_cache_valid_;
 262         /// Cache of timestamps of .bib files
 263         map<FileName, time_t> bibfile_status_;
 264         /// Indicates whether the bibinfo has changed since the last time
 265         /// we ran updateBuffer(), i.e., whether citation labels may need
 266         /// to be updated.
 267         mutable bool cite_labels_valid_;
 268
 269         mutable RefCache ref_cache_;
 270
 271         /// our Text that should be wrapped in an InsetText
 272         InsetText * inset;
 273
 274         ///
 275         PreviewLoader * preview_loader_;
 276
 277         /// This is here to force the test to be done whenever parent_buffer
 278         /// is accessed.
 279         Buffer const * parent() const {
 280                 // if parent_buffer is not loaded, then it has been unloaded,
 281                 // which means that parent_buffer is an invalid pointer. So we
 282                 // set it to null in that case.
 283                 // however, the BufferList doesn't know about cloned buffers, so
 284                 // they will always be regarded as unloaded. in that case, we hope
 285                 // for the best.
 286                 if (!cloned_buffer_ && !theBufferList().isLoaded(parent_buffer))
 287                         parent_buffer = 0;
 288                 return parent_buffer;
 289         }
 290
 291         ///
 292         void setParent(Buffer const * pb) {
 293                 if (parent_buffer == pb)
 294                         // nothing to do
 295                         return;
 296                 if (!cloned_buffer_ && parent_buffer && pb)
 297                         LYXERR0("Warning: a buffer should not have two parents!");
 298                 parent_buffer = pb;
 299                 if (!cloned_buffer_ && parent_buffer) {
 300                         parent_buffer->invalidateBibfileCache();
 301                         parent_buffer->invalidateBibinfoCache();
 302                 }
 303         }
 304
 305         /// If non zero, this buffer is a clone of existing buffer \p cloned_buffer_
 306         /// This one is useful for preview detached in a thread.
 307         Buffer const * cloned_buffer_;
 308         ///
 309         CloneList * clone_list_;
 310         /// are we in the process of exporting this buffer?
 311         mutable bool doing_export;
 312
 313 private:
 314         /// So we can force access via the accessors.
 315         mutable Buffer const * parent_buffer;
 316
 317 };
 318
 319
 320 /// Creates the per buffer temporary directory
 321 static FileName createBufferTmpDir()
 322 {
 323         static int count;
 324         // We are in our own directory.  Why bother to mangle name?
 325         // In fact I wrote this code to circumvent a problematic behaviour
 326         // (bug?) of EMX mkstemp().
 327         FileName tmpfl(package().temp_dir().absFileName() + "/lyx_tmpbuf" +
 328                 convert<string>(count++));
 329
 330         if (!tmpfl.createDirectory(0777)) {
 331                 throw ExceptionMessage(WarningException, _("Disk Error: "), bformat(
 332                         _("LyX could not create the temporary directory '%1$s' (Disk is full maybe?)"),
 333                         from_utf8(tmpfl.absFileName())));
 334         }
 335         return tmpfl;
 336 }
 337
 338
 339 Buffer::Impl::Impl(Buffer * owner, FileName const & file, bool readonly_,
 340         Buffer const * cloned_buffer)
 341         : owner_(owner), lyx_clean(true), bak_clean(true), unnamed(false),
 342           read_only(readonly_), filename(file), file_fully_loaded(false),
 343           toc_backend(owner), macro_lock(false), timestamp_(0), checksum_(0),
 344           wa_(0), gui_(0), undo_(*owner), bibinfo_cache_valid_(false),
 345           bibfile_cache_valid_(false), cite_labels_valid_(false),
 346           preview_loader_(0), cloned_buffer_(cloned_buffer), clone_list_(0),
 347           doing_export(false), parent_buffer(0)
 348 {
 349         if (!cloned_buffer_) {
 350                 temppath = createBufferTmpDir();
 351                 lyxvc.setBuffer(owner_);
 352                 if (use_gui)
 353                         wa_ = new frontend::WorkAreaManager;
 354                 return;
 355         }
 356         temppath = cloned_buffer_->d->temppath;
 357         file_fully_loaded = true;
 358         params = cloned_buffer_->d->params;
 359         bibfiles_cache_ = cloned_buffer_->d->bibfiles_cache_;
 360         bibinfo_ = cloned_buffer_->d->bibinfo_;
 361         bibinfo_cache_valid_ = cloned_buffer_->d->bibinfo_cache_valid_;
 362         bibfile_cache_valid_ = cloned_buffer_->d->bibfile_cache_valid_;
 363         bibfile_status_ = cloned_buffer_->d->bibfile_status_;
 364         cite_labels_valid_ = cloned_buffer_->d->cite_labels_valid_;
 365         unnamed = cloned_buffer_->d->unnamed;
 366 }
 367
 368
 369 Buffer::Buffer(string const & file, bool readonly, Buffer const * cloned_buffer)
 370         : d(new Impl(this, FileName(file), readonly, cloned_buffer))
 371 {
 372         LYXERR(Debug::INFO, "Buffer::Buffer()");
 373         if (cloned_buffer) {
 374                 d->inset = new InsetText(*cloned_buffer->d->inset);
 375                 d->inset->setBuffer(*this);
 376                 // FIXME: optimize this loop somewhat, maybe by creating a new
 377                 // general recursive Inset::setId().
 378                 DocIterator it = doc_iterator_begin(this);
 379                 DocIterator cloned_it = doc_iterator_begin(cloned_buffer);
 380                 for (; !it.atEnd(); it.forwardPar(), cloned_it.forwardPar())
 381                         it.paragraph().setId(cloned_it.paragraph().id());
 382         } else
 383                 d->inset = new InsetText(this);
 384         d->inset->setAutoBreakRows(true);
 385         d->inset->getText(0)->setMacrocontextPosition(par_iterator_begin());
 386 }
 387
 388
 389 Buffer::~Buffer()
 390 {
 391         LYXERR(Debug::INFO, "Buffer::~Buffer()");
 392         // here the buffer should take care that it is
 393         // saved properly, before it goes into the void.
 394
 395         // GuiView already destroyed
 396         d->gui_ = 0;
 397
 398         if (isInternal()) {
 399                 // No need to do additional cleanups for internal buffer.
 400                 delete d;
 401                 return;
 402         }
 403
 404         if (isClone()) {
 405                 // this is in case of recursive includes: we won't try to delete
 406                 // ourselves as a child.
 407                 d->clone_list_->erase(this);
 408                 // loop over children
 409                 Impl::BufferPositionMap::iterator it = d->children_positions.begin();
 410                 Impl::BufferPositionMap::iterator end = d->children_positions.end();
 411                 for (; it != end; ++it) {
 412                         Buffer * child = const_cast<Buffer *>(it->first);
 413                                 if (d->clone_list_->erase(child))
 414                                         delete child;
 415                 }
 416                 // if we're the master buffer, then we should get rid of the list
 417                 // of clones
 418                 if (!parent()) {
 419                         // if this is not empty, we have leaked something. worse, one of the
 420                         // children still has a reference to this list.
 421                         LASSERT(d->clone_list_->empty(), /* */);
 422                         list<CloneList *>::iterator it =
 423                                 find(cloned_buffers.begin(), cloned_buffers.end(), d->clone_list_);
 424                         LASSERT(it != cloned_buffers.end(), /* */);
 425                         cloned_buffers.erase(it);
 426                         delete d->clone_list_;
 427                 }
 428                 // FIXME Do we really need to do this right before we delete d?
 429                 // clear references to children in macro tables
 430                 d->children_positions.clear();
 431                 d->position_to_children.clear();
 432         } else {
 433                 // loop over children
 434                 Impl::BufferPositionMap::iterator it = d->children_positions.begin();
 435                 Impl::BufferPositionMap::iterator end = d->children_positions.end();
 436                 for (; it != end; ++it) {
 437                         Buffer * child = const_cast<Buffer *>(it->first);
 438                         if (theBufferList().isLoaded(child))
 439                                 theBufferList().releaseChild(this, child);
 440                 }
 441
 442                 if (!isClean()) {
 443                         docstring msg = _("LyX attempted to close a document that had unsaved changes!\n");
 444                         msg += emergencyWrite();
 445                         Alert::warning(_("Attempting to close changed document!"), msg);
 446                 }
 447
 448                 // FIXME Do we really need to do this right before we delete d?
 449                 // clear references to children in macro tables
 450                 d->children_positions.clear();
 451                 d->position_to_children.clear();
 452
 453                 if (!d->temppath.destroyDirectory()) {
 454                         Alert::warning(_("Could not remove temporary directory"),
 455                                 bformat(_("Could not remove the temporary directory %1$s"),
 456                                 from_utf8(d->temppath.absFileName())));
 457                 }
 458                 removePreviews();
 459         }
 460
 461         delete d;
 462 }
 463
 464
 465 Buffer * Buffer::clone() const
 466 {
 467         BufferMap bufmap;
 468         cloned_buffers.push_back(new CloneList());
 469         CloneList * clones = cloned_buffers.back();
 470
 471         masterBuffer()->clone(bufmap, clones);
 472
 473         // make sure we got cloned
 474         BufferMap::const_iterator bit = bufmap.find(this);
 475         LASSERT(bit != bufmap.end(), return 0);
 476         Buffer * cloned_buffer = bit->second;
 477
 478         return cloned_buffer;
 479 }
 480
 481
 482 void Buffer::clone(BufferMap & bufmap, CloneList * clones) const
 483 {
 484         // have we already been cloned?
 485         if (bufmap.find(this) != bufmap.end())
 486                 return;
 487
 488         Buffer * buffer_clone = new Buffer(fileName().absFileName(), false, this);
 489         bufmap[this] = buffer_clone;
 490         clones->insert(buffer_clone);
 491         buffer_clone->d->clone_list_ = clones;
 492         buffer_clone->d->macro_lock = true;
 493         buffer_clone->d->children_positions.clear();
 494         // FIXME (Abdel 09/01/2010): this is too complicated. The whole children_positions and
 495         // math macro caches need to be rethought and simplified.
 496         // I am not sure wether we should handle Buffer cloning here or in BufferList.
 497         // Right now BufferList knows nothing about buffer clones.
 498         Impl::PositionScopeBufferMap::iterator it = d->position_to_children.begin();
 499         Impl::PositionScopeBufferMap::iterator end = d->position_to_children.end();
 500         for (; it != end; ++it) {
 501                 DocIterator dit = it->first.clone(buffer_clone);
 502                 dit.setBuffer(buffer_clone);
 503                 Buffer * child = const_cast<Buffer *>(it->second.second);
 504
 505                 child->clone(bufmap, clones);
 506                 BufferMap::iterator const bit = bufmap.find(child);
 507                 LASSERT(bit != bufmap.end(), continue);
 508                 Buffer * child_clone = bit->second;
 509
 510                 Inset * inset = dit.nextInset();
 511                 LASSERT(inset && inset->lyxCode() == INCLUDE_CODE, continue);
 512                 InsetInclude * inset_inc = static_cast<InsetInclude *>(inset);
 513                 inset_inc->setChildBuffer(child_clone);
 514                 child_clone->d->setParent(buffer_clone);
 515                 // FIXME Do we need to do this now, or can we wait until we run updateMacros()?
 516                 buffer_clone->setChild(dit, child_clone);
 517         }
 518         buffer_clone->d->macro_lock = false;
 519         return;
 520 }
 521
 522
 523 bool Buffer::isClone() const
 524 {
 525         return d->cloned_buffer_;
 526 }
 527
 528
 529 void Buffer::changed(bool update_metrics) const
 530 {
 531         if (d->wa_)
 532                 d->wa_->redrawAll(update_metrics);
 533 }
 534
 535
 536 frontend::WorkAreaManager & Buffer::workAreaManager() const
 537 {
 538         LASSERT(d->wa_, /**/);
 539         return *d->wa_;
 540 }
 541
 542
 543 Text & Buffer::text() const
 544 {
 545         return d->inset->text();
 546 }
 547
 548
 549 Inset & Buffer::inset() const
 550 {
 551         return *d->inset;
 552 }
 553
 554
 555 BufferParams & Buffer::params()
 556 {
 557         return d->params;
 558 }
 559
 560
 561 BufferParams const & Buffer::params() const
 562 {
 563         return d->params;
 564 }
 565
 566
 567 ParagraphList & Buffer::paragraphs()
 568 {
 569         return text().paragraphs();
 570 }
 571
 572
 573 ParagraphList const & Buffer::paragraphs() const
 574 {
 575         return text().paragraphs();
 576 }
 577
 578
 579 LyXVC & Buffer::lyxvc()
 580 {
 581         return d->lyxvc;
 582 }
 583
 584
 585 LyXVC const & Buffer::lyxvc() const
 586 {
 587         return d->lyxvc;
 588 }
 589
 590
 591 string const Buffer::temppath() const
 592 {
 593         return d->temppath.absFileName();
 594 }
 595
 596
 597 TexRow & Buffer::texrow()
 598 {
 599         return d->texrow;
 600 }
 601
 602
 603 TexRow const & Buffer::texrow() const
 604 {
 605         return d->texrow;
 606 }
 607
 608
 609 TocBackend & Buffer::tocBackend() const
 610 {
 611         return d->toc_backend;
 612 }
 613
 614
 615 Undo & Buffer::undo()
 616 {
 617         return d->undo_;
 618 }
 619
 620
 621 void Buffer::setChild(DocIterator const & dit, Buffer * child)
 622 {
 623         d->children_positions[child] = dit;
 624 }
 625
 626
 627 string Buffer::latexName(bool const no_path) const
 628 {
 629         FileName latex_name =
 630                 makeLatexName(d->exportFileName());
 631         return no_path ? latex_name.onlyFileName()
 632                 : latex_name.absFileName();
 633 }
 634
 635
 636 FileName Buffer::Impl::exportFileName() const
 637 {
 638         docstring const branch_suffix =
 639                 params.branchlist().getFileNameSuffix();
 640         if (branch_suffix.empty())
 641                 return filename;
 642
 643         string const name = filename.onlyFileNameWithoutExt()
 644                 + to_utf8(branch_suffix);
 645         FileName res(filename.onlyPath().absFileName() + "/" + name);
 646         res.changeExtension(filename.extension());
 647
 648         return res;
 649 }
 650
 651
 652 string Buffer::logName(LogType * type) const
 653 {
 654         string const filename = latexName(false);
 655
 656         if (filename.empty()) {
 657                 if (type)
 658                         *type = latexlog;
 659                 return string();
 660         }
 661
 662         string const path = temppath();
 663
 664         FileName const fname(addName(temppath(),
 665                                      onlyFileName(changeExtension(filename,
 666                                                                   ".log"))));
 667
 668         // FIXME: how do we know this is the name of the build log?
 669         FileName const bname(
 670                 addName(path, onlyFileName(
 671                         changeExtension(filename,
 672                                         formats.extension(params().bufferFormat()) + ".out"))));
 673
 674         // Also consider the master buffer log file
 675         FileName masterfname = fname;
 676         LogType mtype;
 677         if (masterBuffer() != this) {
 678                 string const mlogfile = masterBuffer()->logName(&mtype);
 679                 masterfname = FileName(mlogfile);
 680         }
 681
 682         // If no Latex log or Build log is newer, show Build log
 683         if (bname.exists() &&
 684             ((!fname.exists() && !masterfname.exists())
 685              || (fname.lastModified() < bname.lastModified()
 686                  && masterfname.lastModified() < bname.lastModified()))) {
 687                 LYXERR(Debug::FILES, "Log name calculated as: " << bname);
 688                 if (type)
 689                         *type = buildlog;
 690                 return bname.absFileName();
 691         // If we have a newer master file log or only a master log, show this
 692         } else if (fname != masterfname
 693                    && (!fname.exists() && (masterfname.exists()
 694                    || fname.lastModified() < masterfname.lastModified()))) {
 695                 LYXERR(Debug::FILES, "Log name calculated as: " << masterfname);
 696                 if (type)
 697                         *type = mtype;
 698                 return masterfname.absFileName();
 699         }
 700         LYXERR(Debug::FILES, "Log name calculated as: " << fname);
 701         if (type)
 702                         *type = latexlog;
 703         return fname.absFileName();
 704 }
 705
 706
 707 void Buffer::setReadonly(bool const flag)
 708 {
 709         if (d->read_only != flag) {
 710                 d->read_only = flag;
 711                 changed(false);
 712         }
 713 }
 714
 715
 716 void Buffer::setFileName(FileName const & fname)
 717 {
 718         d->filename = fname;
 719         setReadonly(d->filename.isReadOnly());
 720         saveCheckSum();
 721         updateTitles();
 722 }
 723
 724
 725 int Buffer::readHeader(Lexer & lex)
 726 {
 727         int unknown_tokens = 0;
 728         int line = -1;
 729         int begin_header_line = -1;
 730
 731         // Initialize parameters that may be/go lacking in header:
 732         params().branchlist().clear();
 733         params().preamble.erase();
 734         params().options.erase();
 735         params().master.erase();
 736         params().float_placement.erase();
 737         params().paperwidth.erase();
 738         params().paperheight.erase();
 739         params().leftmargin.erase();
 740         params().rightmargin.erase();
 741         params().topmargin.erase();
 742         params().bottommargin.erase();
 743         params().headheight.erase();
 744         params().headsep.erase();
 745         params().footskip.erase();
 746         params().columnsep.erase();
 747         params().fonts_cjk.erase();
 748         params().listings_params.clear();
 749         params().clearLayoutModules();
 750         params().clearRemovedModules();
 751         params().clearIncludedChildren();
 752         params().pdfoptions().clear();
 753         params().indiceslist().clear();
 754         params().backgroundcolor = lyx::rgbFromHexName("#ffffff");
 755         params().isbackgroundcolor = false;
 756         params().fontcolor = RGBColor(0, 0, 0);
 757         params().isfontcolor = false;
 758         params().notefontcolor = RGBColor(0xCC, 0xCC, 0xCC);
 759         params().boxbgcolor = RGBColor(0xFF, 0, 0);
 760         params().html_latex_start.clear();
 761         params().html_latex_end.clear();
 762         params().html_math_img_scale = 1.0;
 763         params().output_sync_macro.erase();
 764
 765         for (int i = 0; i < 4; ++i) {
 766                 params().user_defined_bullet(i) = ITEMIZE_DEFAULTS[i];
 767                 params().temp_bullet(i) = ITEMIZE_DEFAULTS[i];
 768         }
 769
 770         ErrorList & errorList = d->errorLists["Parse"];
 771
 772         while (lex.isOK()) {
 773                 string token;
 774                 lex >> token;
 775
 776                 if (token.empty())
 777                         continue;
 778
 779                 if (token == "\\end_header")
 780                         break;
 781
 782                 ++line;
 783                 if (token == "\\begin_header") {
 784                         begin_header_line = line;
 785                         continue;
 786                 }
 787
 788                 LYXERR(Debug::PARSER, "Handling document header token: `"
 789                                       << token << '\'');
 790
 791                 string unknown = params().readToken(lex, token, d->filename.onlyPath());
 792                 if (!unknown.empty()) {
 793                         if (unknown[0] != '\\' && token == "\\textclass") {
 794                                 Alert::warning(_("Unknown document class"),
 795                        bformat(_("Using the default document class, because the "
 796                                               "class %1$s is unknown."), from_utf8(unknown)));
 797                         } else {
 798                                 ++unknown_tokens;
 799                                 docstring const s = bformat(_("Unknown token: "
 800                                                                         "%1$s %2$s\n"),
 801                                                          from_utf8(token),
 802                                                          lex.getDocString());
 803                                 errorList.push_back(ErrorItem(_("Document header error"),
 804                                         s, -1, 0, 0));
 805                         }
 806                 }
 807         }
 808         if (begin_header_line) {
 809                 docstring const s = _("\\begin_header is missing");
 810                 errorList.push_back(ErrorItem(_("Document header error"),
 811                         s, -1, 0, 0));
 812         }
 813
 814         params().makeDocumentClass();
 815
 816         return unknown_tokens;
 817 }
 818
 819
 820 // Uwe C. Schroeder
 821 // changed to be public and have one parameter
 822 // Returns true if "\end_document" is not read (Asger)
 823 bool Buffer::readDocument(Lexer & lex)
 824 {
 825         ErrorList & errorList = d->errorLists["Parse"];
 826         errorList.clear();
 827
 828         // remove dummy empty par
 829         paragraphs().clear();
 830
 831         if (!lex.checkFor("\\begin_document")) {
 832                 docstring const s = _("\\begin_document is missing");
 833                 errorList.push_back(ErrorItem(_("Document header error"),
 834                         s, -1, 0, 0));
 835         }
 836
 837         readHeader(lex);
 838
 839         if (params().outputChanges) {
 840                 bool dvipost    = LaTeXFeatures::isAvailable("dvipost");
 841                 bool xcolorulem = LaTeXFeatures::isAvailable("ulem") &&
 842                                   LaTeXFeatures::isAvailable("xcolor");
 843
 844                 if (!dvipost && !xcolorulem) {
 845                         Alert::warning(_("Changes not shown in LaTeX output"),
 846                                        _("Changes will not be highlighted in LaTeX output, "
 847                                          "because neither dvipost nor xcolor/ulem are installed.\n"
 848                                          "Please install these packages or redefine "
 849                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 850                 } else if (!xcolorulem) {
 851                         Alert::warning(_("Changes not shown in LaTeX output"),
 852                                        _("Changes will not be highlighted in LaTeX output "
 853                                          "when using pdflatex, because xcolor and ulem are not installed.\n"
 854                                          "Please install both packages or redefine "
 855                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 856                 }
 857         }
 858
 859         if (!params().master.empty()) {
 860                 FileName const master_file = makeAbsPath(params().master,
 861                            onlyPath(absFileName()));
 862                 if (isLyXFileName(master_file.absFileName())) {
 863                         Buffer * master =
 864                                 checkAndLoadLyXFile(master_file, true);
 865                         if (master) {
 866                                 // necessary e.g. after a reload
 867                                 // to re-register the child (bug 5873)
 868                                 // FIXME: clean up updateMacros (here, only
 869                                 // child registering is needed).
 870                                 master->updateMacros();
 871                                 // set master as master buffer, but only
 872                                 // if we are a real child
 873                                 if (master->isChild(this))
 874                                         setParent(master);
 875                                 // if the master is not fully loaded
 876                                 // it is probably just loading this
 877                                 // child. No warning needed then.
 878                                 else if (master->isFullyLoaded())
 879                                         LYXERR0("The master '"
 880                                                 << params().master
 881                                                 << "' assigned to this document ("
 882                                                 << absFileName()
 883                                                 << ") does not include "
 884                                                 "this document. Ignoring the master assignment.");
 885                         }
 886                 }
 887         }
 888
 889         // assure we have a default index
 890         params().indiceslist().addDefault(B_("Index"));
 891
 892         // read main text
 893         bool const res = text().read(lex, errorList, d->inset);
 894
 895         // inform parent buffer about local macros
 896         if (parent()) {
 897                 Buffer const * pbuf = parent();
 898                 UserMacroSet::const_iterator cit = usermacros.begin();
 899                 UserMacroSet::const_iterator end = usermacros.end();
 900                 for (; cit != end; ++cit)
 901                         pbuf->usermacros.insert(*cit);
 902         }
 903         usermacros.clear();
 904         updateMacros();
 905         updateMacroInstances(InternalUpdate);
 906         return res;
 907 }
 908
 909
 910 bool Buffer::readString(string const & s)
 911 {
 912         params().compressed = false;
 913
 914         Lexer lex;
 915         istringstream is(s);
 916         lex.setStream(is);
 917         FileName const fn = FileName::tempName("Buffer_readString");
 918
 919         int file_format;
 920         ReadStatus const ret_plf = parseLyXFormat(lex, fn, file_format);
 921         if (ret_plf != ReadSuccess)
 922                 return ret_plf;
 923
 924         if (file_format != LYX_FORMAT) {
 925                 // We need to call lyx2lyx, so write the input to a file
 926                 ofstream os(fn.toFilesystemEncoding().c_str());
 927                 os << s;
 928                 os.close();
 929                 // lyxvc in readFile
 930                 return readFile(fn) == ReadSuccess;
 931         }
 932
 933         if (readDocument(lex))
 934                 return false;
 935         return true;
 936 }
 937
 938
 939 Buffer::ReadStatus Buffer::readFile(FileName const & fn)
 940 {
 941         FileName fname(fn);
 942         Lexer lex;
 943         if (!lex.setFile(fname)) {
 944                 Alert::error(_("File Not Found"),
 945                         bformat(_("Unable to open file `%1$s'."),
 946                                 from_utf8(fn.absFileName())));
 947                 return ReadFileNotFound;
 948         }
 949
 950         int file_format;
 951         ReadStatus const ret_plf = parseLyXFormat(lex, fn, file_format);
 952         if (ret_plf != ReadSuccess)
 953                 return ret_plf;
 954
 955         if (file_format != LYX_FORMAT) {
 956                 FileName tmpFile;
 957                 ReadStatus const ret_clf = convertLyXFormat(fn, tmpFile, file_format);
 958                 if (ret_clf != ReadSuccess)
 959                         return ret_clf;
 960                 return readFile(tmpFile);
 961         }
 962
 963         // FIXME: InsetInfo needs to know whether the file is under VCS
 964         // during the parse process, so this has to be done before.
 965         lyxvc().file_found_hook(d->filename);
 966
 967         if (readDocument(lex)) {
 968                 Alert::error(_("Document format failure"),
 969                         bformat(_("%1$s ended unexpectedly, which means"
 970                                 " that it is probably corrupted."),
 971                                         from_utf8(fn.absFileName())));
 972                 return ReadDocumentFailure;
 973         }
 974
 975         d->file_fully_loaded = true;
 976         d->read_only = !d->filename.isWritable();
 977         params().compressed = d->filename.isZippedFile();
 978         saveCheckSum();
 979         return ReadSuccess;
 980 }
 981
 982
 983 bool Buffer::isFullyLoaded() const
 984 {
 985         return d->file_fully_loaded;
 986 }
 987
 988
 989 void Buffer::setFullyLoaded(bool value)
 990 {
 991         d->file_fully_loaded = value;
 992 }
 993
 994
 995 PreviewLoader * Buffer::loader() const
 996 {
 997         if (!isExporting() && lyxrc.preview == LyXRC::PREVIEW_OFF)
 998                 return 0;
 999         if (!d->preview_loader_)
1000                 d->preview_loader_ = new PreviewLoader(*this);
1001         return d->preview_loader_;
1002 }
1003
1004
1005 void Buffer::removePreviews() const
1006 {
1007         delete d->preview_loader_;
1008         d->preview_loader_ = 0;
1009 }
1010
1011
1012 void Buffer::updatePreviews() const
1013 {
1014         PreviewLoader * ploader = loader();
1015         if (!ploader)
1016                 return;
1017
1018         InsetIterator it = inset_iterator_begin(*d->inset);
1019         InsetIterator const end = inset_iterator_end(*d->inset);
1020         for (; it != end; ++it)
1021                 it->addPreview(it, *ploader);
1022
1023         ploader->startLoading();
1024 }
1025
1026
1027 Buffer::ReadStatus Buffer::parseLyXFormat(Lexer & lex,
1028         FileName const & fn, int & file_format) const
1029 {
1030         if(!lex.checkFor("\\lyxformat")) {
1031                 Alert::error(_("Document format failure"),
1032                         bformat(_("%1$s is not a readable LyX document."),
1033                                 from_utf8(fn.absFileName())));
1034                 return ReadNoLyXFormat;
1035         }
1036
1037         string tmp_format;
1038         lex >> tmp_format;
1039
1040         // LyX formats 217 and earlier were written as 2.17. This corresponds
1041         // to files from LyX versions < 1.1.6.3. We just remove the dot in
1042         // these cases. See also: www.lyx.org/trac/changeset/1313.
1043         size_t dot = tmp_format.find_first_of(".,");
1044         if (dot != string::npos)
1045                 tmp_format.erase(dot, 1);
1046
1047         file_format = convert<int>(tmp_format);
1048         return ReadSuccess;
1049 }
1050
1051
1052 Buffer::ReadStatus Buffer::convertLyXFormat(FileName const & fn,
1053         FileName & tmpfile, int from_format)
1054 {
1055         tmpfile = FileName::tempName("Buffer_convertLyXFormat");
1056         if(tmpfile.empty()) {
1057                 Alert::error(_("Conversion failed"),
1058                         bformat(_("%1$s is from a different"
1059                                 " version of LyX, but a temporary"
1060                                 " file for converting it could"
1061                                 " not be created."),
1062                                 from_utf8(fn.absFileName())));
1063                 return LyX2LyXNoTempFile;
1064         }
1065
1066         FileName const lyx2lyx = libFileSearch("lyx2lyx", "lyx2lyx");
1067         if (lyx2lyx.empty()) {
1068                 Alert::error(_("Conversion script not found"),
1069                      bformat(_("%1$s is from a different"
1070                                " version of LyX, but the"
1071                                " conversion script lyx2lyx"
1072                                " could not be found."),
1073                                from_utf8(fn.absFileName())));
1074                 return LyX2LyXNotFound;
1075         }
1076
1077         // Run lyx2lyx:
1078         //   $python$ "$lyx2lyx$" -t $LYX_FORMAT$ -o "$tempfile$" "$filetoread$"
1079         ostringstream command;
1080         command << os::python()
1081                 << ' ' << quoteName(lyx2lyx.toFilesystemEncoding())
1082                 << " -t " << convert<string>(LYX_FORMAT)
1083                 << " -o " << quoteName(tmpfile.toFilesystemEncoding())
1084                 << ' ' << quoteName(fn.toSafeFilesystemEncoding());
1085         string const command_str = command.str();
1086
1087         LYXERR(Debug::INFO, "Running '" << command_str << '\'');
1088
1089         cmd_ret const ret = runCommand(command_str);
1090         if (ret.first != 0) {
1091                 if (from_format < LYX_FORMAT) {
1092                         Alert::error(_("Conversion script failed"),
1093                                 bformat(_("%1$s is from an older version"
1094                                         " of LyX and the lyx2lyx script"
1095                                         " failed to convert it."),
1096                                         from_utf8(fn.absFileName())));
1097                         return LyX2LyXOlderFormat;
1098                 } else {
1099                         Alert::error(_("Conversion script failed"),
1100                                 bformat(_("%1$s is from a newer version"
1101                                         " of LyX and the lyx2lyx script"
1102                                         " failed to convert it."),
1103                                         from_utf8(fn.absFileName())));
1104                         return LyX2LyXNewerFormat;
1105                 }
1106         }
1107         return ReadSuccess;
1108 }
1109
1110
1111 // Should probably be moved to somewhere else: BufferView? GuiView?
1112 bool Buffer::save() const
1113 {
1114         docstring const file = makeDisplayPath(absFileName(), 20);
1115         d->filename.refresh();
1116
1117         // check the read-only status before moving the file as a backup
1118         if (d->filename.exists()) {
1119                 bool const read_only = !d->filename.isWritable();
1120                 if (read_only) {
1121                         Alert::warning(_("File is read-only"),
1122                                 bformat(_("The file %1$s cannot be written because it "
1123                                 "is marked as read-only."), file));
1124                         return false;
1125                 }
1126         }
1127
1128         // ask if the disk file has been externally modified (use checksum method)
1129         if (fileName().exists() && isExternallyModified(checksum_method)) {
1130                 docstring text =
1131                         bformat(_("Document %1$s has been externally modified. "
1132                                 "Are you sure you want to overwrite this file?"), file);
1133                 int const ret = Alert::prompt(_("Overwrite modified file?"),
1134                         text, 1, 1, _("&Overwrite"), _("&Cancel"));
1135                 if (ret == 1)
1136                         return false;
1137         }
1138
1139         // We don't need autosaves in the immediate future. (Asger)
1140         resetAutosaveTimers();
1141
1142         FileName backupName;
1143         bool madeBackup = false;
1144
1145         // make a backup if the file already exists
1146         if (lyxrc.make_backup && fileName().exists()) {
1147                 backupName = FileName(absFileName() + '~');
1148                 if (!lyxrc.backupdir_path.empty()) {
1149                         string const mangledName =
1150                                 subst(subst(backupName.absFileName(), '/', '!'), ':', '!');
1151                         backupName = FileName(addName(lyxrc.backupdir_path,
1152                                                       mangledName));
1153                 }
1154
1155                 // Except file is symlink do not copy because of #6587.
1156                 // Hard links have bad luck.
1157                 if (fileName().isSymLink())
1158                         madeBackup = fileName().copyTo(backupName);
1159                 else
1160                         madeBackup = fileName().moveTo(backupName);
1161
1162                 if (!madeBackup) {
1163                         Alert::error(_("Backup failure"),
1164                                      bformat(_("Cannot create backup file %1$s.\n"
1165                                                "Please check whether the directory exists and is writable."),
1166                                              from_utf8(backupName.absFileName())));
1167                         //LYXERR(Debug::DEBUG, "Fs error: " << fe.what());
1168                 }
1169         }
1170
1171         if (writeFile(d->filename)) {
1172                 markClean();
1173                 return true;
1174         } else {
1175                 // Saving failed, so backup is not backup
1176                 if (madeBackup)
1177                         backupName.moveTo(d->filename);
1178                 return false;
1179         }
1180 }
1181
1182
1183 bool Buffer::writeFile(FileName const & fname) const
1184 {
1185         // FIXME Do we need to do these here? I don't think writing
1186         // the LyX file depends upon it. (RGH)
1187         // updateBuffer();
1188         // updateMacroInstances();
1189
1190         if (d->read_only && fname == d->filename)
1191                 return false;
1192
1193         bool retval = false;
1194
1195         docstring const str = bformat(_("Saving document %1$s..."),
1196                 makeDisplayPath(fname.absFileName()));
1197         message(str);
1198
1199         string const encoded_fname = fname.toSafeFilesystemEncoding(os::CREATE);
1200
1201         if (params().compressed) {
1202                 gz::ogzstream ofs(encoded_fname.c_str(), ios::out|ios::trunc);
1203                 retval = ofs && write(ofs);
1204         } else {
1205                 ofstream ofs(encoded_fname.c_str(), ios::out|ios::trunc);
1206                 retval = ofs && write(ofs);
1207         }
1208
1209         if (!retval) {
1210                 message(str + _(" could not write file!"));
1211                 return false;
1212         }
1213
1214         // see bug 6587
1215         // removeAutosaveFile();
1216
1217         saveCheckSum();
1218         message(str + _(" done."));
1219
1220         return true;
1221 }
1222
1223
1224 docstring Buffer::emergencyWrite()
1225 {
1226         // No need to save if the buffer has not changed.
1227         if (isClean())
1228                 return docstring();
1229
1230         string const doc = isUnnamed() ? onlyFileName(absFileName()) : absFileName();
1231
1232         docstring user_message = bformat(
1233                 _("LyX: Attempting to save document %1$s\n"), from_utf8(doc));
1234
1235         // We try to save three places:
1236         // 1) Same place as document. Unless it is an unnamed doc.
1237         if (!isUnnamed()) {
1238                 string s = absFileName();
1239                 s += ".emergency";
1240                 LYXERR0("  " << s);
1241                 if (writeFile(FileName(s))) {
1242                         markClean();
1243                         user_message += "  " + bformat(_("Saved to %1$s. Phew.\n"), from_utf8(s));
1244                         return user_message;
1245                 } else {
1246                         user_message += "  " + _("Save failed! Trying again...\n");
1247                 }
1248         }
1249
1250         // 2) In HOME directory.
1251         string s = addName(Package::get_home_dir().absFileName(), absFileName());
1252         s += ".emergency";
1253         lyxerr << ' ' << s << endl;
1254         if (writeFile(FileName(s))) {
1255                 markClean();
1256                 user_message += "  " + bformat(_("Saved to %1$s. Phew.\n"), from_utf8(s));
1257                 return user_message;
1258         }
1259
1260         user_message += "  " + _("Save failed! Trying yet again...\n");
1261
1262         // 3) In "/tmp" directory.
1263         // MakeAbsPath to prepend the current
1264         // drive letter on OS/2
1265         s = addName(package().temp_dir().absFileName(), absFileName());
1266         s += ".emergency";
1267         lyxerr << ' ' << s << endl;
1268         if (writeFile(FileName(s))) {
1269                 markClean();
1270                 user_message += "  " + bformat(_("Saved to %1$s. Phew.\n"), from_utf8(s));
1271                 return user_message;
1272         }
1273
1274         user_message += "  " + _("Save failed! Bummer. Document is lost.");
1275         // Don't try again.
1276         markClean();
1277         return user_message;
1278 }
1279
1280
1281 bool Buffer::write(ostream & ofs) const
1282 {
1283 #ifdef HAVE_LOCALE
1284         // Use the standard "C" locale for file output.
1285         ofs.imbue(locale::classic());
1286 #endif
1287
1288         // The top of the file should not be written by params().
1289
1290         // write out a comment in the top of the file
1291         ofs << "#LyX " << lyx_version_major << "." << lyx_version_minor
1292             << " created this file. For more info see http://www.lyx.org/\n"
1293             << "\\lyxformat " << LYX_FORMAT << "\n"
1294             << "\\begin_document\n";
1295
1296         /// For each author, set 'used' to true if there is a change
1297         /// by this author in the document; otherwise set it to 'false'.
1298         AuthorList::Authors::const_iterator a_it = params().authors().begin();
1299         AuthorList::Authors::const_iterator a_end = params().authors().end();
1300         for (; a_it != a_end; ++a_it)
1301                 a_it->setUsed(false);
1302
1303         ParIterator const end = const_cast<Buffer *>(this)->par_iterator_end();
1304         ParIterator it = const_cast<Buffer *>(this)->par_iterator_begin();
1305         for ( ; it != end; ++it)
1306                 it->checkAuthors(params().authors());
1307
1308         // now write out the buffer parameters.
1309         ofs << "\\begin_header\n";
1310         params().writeFile(ofs);
1311         ofs << "\\end_header\n";
1312
1313         // write the text
1314         ofs << "\n\\begin_body\n";
1315         text().write(ofs);
1316         ofs << "\n\\end_body\n";
1317
1318         // Write marker that shows file is complete
1319         ofs << "\\end_document" << endl;
1320
1321         // Shouldn't really be needed....
1322         //ofs.close();
1323
1324         // how to check if close went ok?
1325         // Following is an attempt... (BE 20001011)
1326
1327         // good() returns false if any error occured, including some
1328         //        formatting error.
1329         // bad()  returns true if something bad happened in the buffer,
1330         //        which should include file system full errors.
1331
1332         bool status = true;
1333         if (!ofs) {
1334                 status = false;
1335                 lyxerr << "File was not closed properly." << endl;
1336         }
1337
1338         return status;
1339 }
1340
1341
1342 bool Buffer::makeLaTeXFile(FileName const & fname,
1343                            string const & original_path,
1344                            OutputParams const & runparams_in,
1345                            OutputWhat output) const
1346 {
1347         OutputParams runparams = runparams_in;
1348
1349         // This is necessary for LuaTeX/XeTeX with tex fonts.
1350         // See FIXME in BufferParams::encoding()
1351         if (runparams.isFullUnicode())
1352                 runparams.encoding = encodings.fromLyXName("utf8-plain");
1353
1354         string const encoding = runparams.encoding->iconvName();
1355         LYXERR(Debug::LATEX, "makeLaTeXFile encoding: " << encoding << ", fname=" << fname.realPath());
1356
1357         ofdocstream ofs;
1358         try { ofs.reset(encoding); }
1359         catch (iconv_codecvt_facet_exception & e) {
1360                 lyxerr << "Caught iconv exception: " << e.what() << endl;
1361                 Alert::error(_("Iconv software exception Detected"), bformat(_("Please "
1362                         "verify that the support software for your encoding (%1$s) is "
1363                         "properly installed"), from_ascii(encoding)));
1364                 return false;
1365         }
1366         if (!openFileWrite(ofs, fname))
1367                 return false;
1368
1369         //TexStream ts(ofs.rdbuf(), &texrow());
1370         ErrorList & errorList = d->errorLists["Export"];
1371         errorList.clear();
1372         bool failed_export = false;
1373         otexstream os(ofs, d->texrow);
1374
1375         // make sure we are ready to export
1376         // this needs to be done before we validate
1377         // FIXME Do we need to do this all the time? I.e., in children
1378         // of a master we are exporting?
1379         updateBuffer();
1380         updateMacroInstances(OutputUpdate);
1381
1382         try {
1383                 os.texrow().reset();
1384                 writeLaTeXSource(os, original_path, runparams, output);
1385         }
1386         catch (EncodingException & e) {
1387                 odocstringstream ods;
1388                 ods.put(e.failed_char);
1389                 ostringstream oss;
1390                 oss << "0x" << hex << e.failed_char << dec;
1391                 docstring msg = bformat(_("Could not find LaTeX command for character '%1$s'"
1392                                           " (code point %2$s)"),
1393                                           ods.str(), from_utf8(oss.str()));
1394                 errorList.push_back(ErrorItem(msg, _("Some characters of your document are probably not "
1395                                 "representable in the chosen encoding.\n"
1396                                 "Changing the document encoding to utf8 could help."),
1397                                 e.par_id, e.pos, e.pos + 1));
1398                 failed_export = true;
1399         }
1400         catch (iconv_codecvt_facet_exception & e) {
1401                 errorList.push_back(ErrorItem(_("iconv conversion failed"),
1402                         _(e.what()), -1, 0, 0));
1403                 failed_export = true;
1404         }
1405         catch (exception const & e) {
1406                 errorList.push_back(ErrorItem(_("conversion failed"),
1407                         _(e.what()), -1, 0, 0));
1408                 failed_export = true;
1409         }
1410         catch (...) {
1411                 lyxerr << "Caught some really weird exception..." << endl;
1412                 lyx_exit(1);
1413         }
1414
1415         ofs.close();
1416         if (ofs.fail()) {
1417                 failed_export = true;
1418                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1419         }
1420
1421         errors("Export");
1422         return !failed_export;
1423 }
1424
1425
1426 void Buffer::writeLaTeXSource(otexstream & os,
1427                            string const & original_path,
1428                            OutputParams const & runparams_in,
1429          OutputWhat output) const
1430 {
1431         // The child documents, if any, shall be already loaded at this point.
1432
1433         OutputParams runparams = runparams_in;
1434
1435         // Classify the unicode characters appearing in math insets
1436         Encodings::initUnicodeMath(*this);
1437
1438         // validate the buffer.
1439         LYXERR(Debug::LATEX, "  Validating buffer...");
1440         LaTeXFeatures features(*this, params(), runparams);
1441         validate(features);
1442         LYXERR(Debug::LATEX, "  Buffer validation done.");
1443
1444         bool const output_preamble =
1445                 output == FullSource || output == OnlyPreamble;
1446         bool const output_body =
1447           output == FullSource || output == OnlyBody;
1448
1449         // The starting paragraph of the coming rows is the
1450         // first paragraph of the document. (Asger)
1451         if (output_preamble && runparams.nice) {
1452                 os << "%% LyX " << lyx_version << " created this file.  "
1453                         "For more info, see http://www.lyx.org/.\n"
1454                         "%% Do not edit unless you really know what "
1455                         "you are doing.\n";
1456         }
1457         LYXERR(Debug::INFO, "lyx document header finished");
1458
1459         // There are a few differences between nice LaTeX and usual files:
1460         // usual files have \batchmode and special input@path to allow
1461         // inclusion of figures specified by an explicitly relative path
1462         // (i.e., a path starting with './' or '../') with either \input or
1463         // \includegraphics, as the TEXINPUTS method doesn't work in this case.
1464         // input@path is set when the actual parameter original_path is set.
1465         // This is done for usual tex-file, but not for nice-latex-file.
1466         // (Matthias 250696)
1467         // Note that input@path is only needed for something the user does
1468         // in the preamble, included .tex files or ERT, files included by
1469         // LyX work without it.
1470         if (output_preamble) {
1471                 if (!runparams.nice) {
1472                         // code for usual, NOT nice-latex-file
1473                         os << "\\batchmode\n"; // changed from \nonstopmode
1474                 }
1475                 if (!original_path.empty()) {
1476                         // FIXME UNICODE
1477                         // We don't know the encoding of inputpath
1478                         docstring const inputpath = from_utf8(original_path);
1479                         docstring uncodable_glyphs;
1480                         Encoding const * const enc = runparams.encoding;
1481                         if (enc) {
1482                                 for (size_t n = 0; n < inputpath.size(); ++n) {
1483                                         docstring const glyph =
1484                                                 docstring(1, inputpath[n]);
1485                                         if (enc->latexChar(inputpath[n], true) != glyph) {
1486                                                 LYXERR0("Uncodable character '"
1487                                                         << glyph
1488                                                         << "' in input path!");
1489                                                 uncodable_glyphs += glyph;
1490                                         }
1491                                 }
1492                         }
1493
1494                         // warn user if we found uncodable glyphs.
1495                         if (!uncodable_glyphs.empty()) {
1496                                 frontend::Alert::warning(
1497                                         _("Uncodable character in file path"),
1498                                         support::bformat(
1499                                           _("The path of your document\n"
1500                                             "(%1$s)\n"
1501                                             "contains glyphs that are unknown "
1502                                             "in the current document encoding "
1503                                             "(namely %2$s). This may result in "
1504                                             "incomplete output, unless "
1505                                             "TEXINPUTS contains the document "
1506                                             "directory and you don't use "
1507                                             "explicitly relative paths (i.e., "
1508                                             "paths starting with './' or "
1509                                             "'../') in the preamble or in ERT."
1510                                             "\n\nIn case of problems, choose "
1511                                             "an appropriate document encoding\n"
1512                                             "(such as utf8) or change the "
1513                                             "file path name."),
1514                                           inputpath, uncodable_glyphs));
1515                         } else {
1516                                 string docdir =
1517                                         support::latex_path(original_path);
1518                                 if (contains(docdir, '#')) {
1519                                         docdir = subst(docdir, "#", "\\#");
1520                                         os << "\\catcode`\\#=11"
1521                                               "\\def\\#{#}\\catcode`\\#=6\n";
1522                                 }
1523                                 if (contains(docdir, '%')) {
1524                                         docdir = subst(docdir, "%", "\\%");
1525                                         os << "\\catcode`\\%=11"
1526                                               "\\def\\%{%}\\catcode`\\%=14\n";
1527                                 }
1528                                 os << "\\makeatletter\n"
1529                                    << "\\def\\input@path{{"
1530                                    << docdir << "/}}\n"
1531                                    << "\\makeatother\n";
1532                         }
1533                 }
1534
1535                 // get parent macros (if this buffer has a parent) which will be
1536                 // written at the document begin further down.
1537                 MacroSet parentMacros;
1538                 listParentMacros(parentMacros, features);
1539
1540                 runparams.use_polyglossia = features.usePolyglossia();
1541                 // Write the preamble
1542                 runparams.use_babel = params().writeLaTeX(os, features,
1543                                                           d->filename.onlyPath());
1544
1545                 runparams.use_japanese = features.isRequired("japanese");
1546
1547                 if (!output_body)
1548                         return;
1549
1550                 // make the body.
1551                 os << "\\begin{document}\n";
1552
1553                 // output the parent macros
1554                 MacroSet::iterator it = parentMacros.begin();
1555                 MacroSet::iterator end = parentMacros.end();
1556                 for (; it != end; ++it) {
1557                         int num_lines = (*it)->write(os.os(), true);
1558                         os.texrow().newlines(num_lines);
1559                 }
1560
1561         } // output_preamble
1562
1563         os.texrow().start(paragraphs().begin()->id(), 0);
1564
1565         LYXERR(Debug::INFO, "preamble finished, now the body.");
1566
1567         // if we are doing a real file with body, even if this is the
1568         // child of some other buffer, let's cut the link here.
1569         // This happens for example if only a child document is printed.
1570         Buffer const * save_parent = 0;
1571         if (output_preamble) {
1572                 save_parent = d->parent();
1573                 d->setParent(0);
1574         }
1575
1576         // the real stuff
1577         latexParagraphs(*this, text(), os, runparams);
1578
1579         // Restore the parenthood if needed
1580         if (output_preamble)
1581                 d->setParent(save_parent);
1582
1583         // add this just in case after all the paragraphs
1584         os << endl;
1585
1586         if (output_preamble) {
1587                 os << "\\end{document}\n";
1588                 LYXERR(Debug::LATEX, "makeLaTeXFile...done");
1589         } else {
1590                 LYXERR(Debug::LATEX, "LaTeXFile for inclusion made.");
1591         }
1592         runparams_in.encoding = runparams.encoding;
1593
1594         // Just to be sure. (Asger)
1595         os.texrow().newline();
1596
1597         //for (int i = 0; i<d->texrow.rows(); i++) {
1598         // int id,pos;
1599         // if (d->texrow.getIdFromRow(i+1,id,pos) && id>0)
1600         //      lyxerr << i+1 << ":" << id << ":" << getParFromID(id).paragraph().asString()<<"\n";
1601         //}
1602
1603         LYXERR(Debug::INFO, "Finished making LaTeX file.");
1604         LYXERR(Debug::INFO, "Row count was " << os.texrow().rows() - 1 << '.');
1605 }
1606
1607
1608 void Buffer::makeDocBookFile(FileName const & fname,
1609                               OutputParams const & runparams,
1610                               OutputWhat output) const
1611 {
1612         LYXERR(Debug::LATEX, "makeDocBookFile...");
1613
1614         ofdocstream ofs;
1615         if (!openFileWrite(ofs, fname))
1616                 return;
1617
1618         // make sure we are ready to export
1619         // this needs to be done before we validate
1620         updateBuffer();
1621         updateMacroInstances(OutputUpdate);
1622
1623         writeDocBookSource(ofs, fname.absFileName(), runparams, output);
1624
1625         ofs.close();
1626         if (ofs.fail())
1627                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1628 }
1629
1630
1631 void Buffer::writeDocBookSource(odocstream & os, string const & fname,
1632                              OutputParams const & runparams,
1633                              OutputWhat output) const
1634 {
1635         LaTeXFeatures features(*this, params(), runparams);
1636         validate(features);
1637
1638         d->texrow.reset();
1639
1640         DocumentClass const & tclass = params().documentClass();
1641         string const top_element = tclass.latexname();
1642
1643         bool const output_preamble =
1644                 output == FullSource || output == OnlyPreamble;
1645         bool const output_body =
1646           output == FullSource || output == OnlyBody;
1647
1648         if (output_preamble) {
1649                 if (runparams.flavor == OutputParams::XML)
1650                         os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
1651
1652                 // FIXME UNICODE
1653                 os << "<!DOCTYPE " << from_ascii(top_element) << ' ';
1654
1655                 // FIXME UNICODE
1656                 if (! tclass.class_header().empty())
1657                         os << from_ascii(tclass.class_header());
1658                 else if (runparams.flavor == OutputParams::XML)
1659                         os << "PUBLIC \"-//OASIS//DTD DocBook XML//EN\" "
1660                             << "\"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd\"";
1661                 else
1662                         os << " PUBLIC \"-//OASIS//DTD DocBook V4.2//EN\"";
1663
1664                 docstring preamble = from_utf8(params().preamble);
1665                 if (runparams.flavor != OutputParams::XML ) {
1666                         preamble += "<!ENTITY % output.print.png \"IGNORE\">\n";
1667                         preamble += "<!ENTITY % output.print.pdf \"IGNORE\">\n";
1668                         preamble += "<!ENTITY % output.print.eps \"IGNORE\">\n";
1669                         preamble += "<!ENTITY % output.print.bmp \"IGNORE\">\n";
1670                 }
1671
1672                 string const name = runparams.nice
1673                         ? changeExtension(absFileName(), ".sgml") : fname;
1674                 preamble += features.getIncludedFiles(name);
1675                 preamble += features.getLyXSGMLEntities();
1676
1677                 if (!preamble.empty()) {
1678                         os << "\n [ " << preamble << " ]";
1679                 }
1680                 os << ">\n\n";
1681         }
1682
1683         if (output_body) {
1684                 string top = top_element;
1685                 top += " lang=\"";
1686                 if (runparams.flavor == OutputParams::XML)
1687                         top += params().language->code();
1688                 else
1689                         top += params().language->code().substr(0, 2);
1690                 top += '"';
1691
1692                 if (!params().options.empty()) {
1693                         top += ' ';
1694                         top += params().options;
1695                 }
1696
1697                 os << "<!-- " << ((runparams.flavor == OutputParams::XML)? "XML" : "SGML")
1698                                 << " file was created by LyX " << lyx_version
1699                                 << "\n  See http://www.lyx.org/ for more information -->\n";
1700
1701                 params().documentClass().counters().reset();
1702
1703                 sgml::openTag(os, top);
1704                 os << '\n';
1705                 docbookParagraphs(text(), *this, os, runparams);
1706                 sgml::closeTag(os, top_element);
1707         }
1708 }
1709
1710
1711 void Buffer::makeLyXHTMLFile(FileName const & fname,
1712                               OutputParams const & runparams) const
1713 {
1714         LYXERR(Debug::LATEX, "makeLyXHTMLFile...");
1715
1716         ofdocstream ofs;
1717         if (!openFileWrite(ofs, fname))
1718                 return;
1719
1720         // make sure we are ready to export
1721         // this has to be done before we validate
1722         updateBuffer(UpdateMaster, OutputUpdate);
1723         updateMacroInstances(OutputUpdate);
1724
1725         writeLyXHTMLSource(ofs, runparams, FullSource);
1726
1727         ofs.close();
1728         if (ofs.fail())
1729                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1730 }
1731
1732
1733 void Buffer::writeLyXHTMLSource(odocstream & os,
1734                              OutputParams const & runparams,
1735                              OutputWhat output) const
1736 {
1737         LaTeXFeatures features(*this, params(), runparams);
1738         validate(features);
1739         d->bibinfo_.makeCitationLabels(*this);
1740
1741         bool const output_preamble =
1742                 output == FullSource || output == OnlyPreamble;
1743         bool const output_body =
1744           output == FullSource || output == OnlyBody;
1745
1746         if (output_preamble) {
1747                 os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
1748                    << "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1 plus MathML 2.0//EN\" \"http://www.w3.org/TR/MathML2/dtd/xhtml-math11-f.dtd\">\n"
1749                    // FIXME Language should be set properly.
1750                    << "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n"
1751                    << "<head>\n"
1752                    << "<meta name=\"GENERATOR\" content=\"" << PACKAGE_STRING << "\" />\n"
1753                    // FIXME Presumably need to set this right
1754                    << "<meta http-equiv=\"Content-type\" content=\"text/html;charset=UTF-8\" />\n";
1755
1756                 docstring const & doctitle = features.htmlTitle();
1757                 os << "<title>"
1758                    << (doctitle.empty() ?
1759                          from_ascii("LyX Document") :
1760                          html::htmlize(doctitle, XHTMLStream::ESCAPE_ALL))
1761                    << "</title>\n";
1762
1763                 os << "\n<!-- Text Class Preamble -->\n"
1764                    << features.getTClassHTMLPreamble()
1765                    << "\n<!-- Preamble Snippets -->\n"
1766                    << from_utf8(features.getPreambleSnippets());
1767
1768                 os << "\n<!-- Layout-provided Styles -->\n";
1769                 docstring const styleinfo = features.getTClassHTMLStyles();
1770                 if (!styleinfo.empty()) {
1771                         os << "<style type='text/css'>\n"
1772                                 << styleinfo
1773                                 << "</style>\n";
1774                 }
1775
1776                 bool const needfg = params().fontcolor != RGBColor(0, 0, 0);
1777                 bool const needbg = params().backgroundcolor != RGBColor(0xFF, 0xFF, 0xFF);
1778                 if (needfg || needbg) {
1779                                 os << "<style type='text/css'>\nbody {\n";
1780                                 if (needfg)
1781                                    os << "  color: "
1782                                             << from_ascii(X11hexname(params().fontcolor))
1783                                             << ";\n";
1784                                 if (needbg)
1785                                    os << "  background-color: "
1786                                             << from_ascii(X11hexname(params().backgroundcolor))
1787                                             << ";\n";
1788                                 os << "}\n</style>\n";
1789                 }
1790                 os << "</head>\n";
1791         }
1792
1793         if (output_body) {
1794                 os << "<body>\n";
1795                 XHTMLStream xs(os);
1796                 params().documentClass().counters().reset();
1797                 xhtmlParagraphs(text(), *this, xs, runparams);
1798                 os << "</body>\n";
1799         }
1800
1801         if (output_preamble)
1802                 os << "</html>\n";
1803 }
1804
1805
1806 // chktex should be run with these flags disabled: 3, 22, 25, 30, 38(?)
1807 // Other flags: -wall -v0 -x
1808 int Buffer::runChktex()
1809 {
1810         setBusy(true);
1811
1812         // get LaTeX-Filename
1813         FileName const path(temppath());
1814         string const name = addName(path.absFileName(), latexName());
1815         string const org_path = filePath();
1816
1817         PathChanger p(path); // path to LaTeX file
1818         message(_("Running chktex..."));
1819
1820         // Generate the LaTeX file if neccessary
1821         OutputParams runparams(&params().encoding());
1822         runparams.flavor = OutputParams::LATEX;
1823         runparams.nice = false;
1824         runparams.linelen = lyxrc.plaintext_linelen;
1825         makeLaTeXFile(FileName(name), org_path, runparams);
1826
1827         TeXErrors terr;
1828         Chktex chktex(lyxrc.chktex_command, onlyFileName(name), filePath());
1829         int const res = chktex.run(terr); // run chktex
1830
1831         if (res == -1) {
1832                 Alert::error(_("chktex failure"),
1833                              _("Could not run chktex successfully."));
1834         } else if (res > 0) {
1835                 ErrorList & errlist = d->errorLists["ChkTeX"];
1836                 errlist.clear();
1837                 bufferErrors(terr, errlist);
1838         }
1839
1840         setBusy(false);
1841
1842         errors("ChkTeX");
1843
1844         return res;
1845 }
1846
1847
1848 void Buffer::validate(LaTeXFeatures & features) const
1849 {
1850         params().validate(features);
1851
1852         for_each(paragraphs().begin(), paragraphs().end(),
1853                  bind(&Paragraph::validate, _1, ref(features)));
1854
1855         if (lyxerr.debugging(Debug::LATEX)) {
1856                 features.showStruct();
1857         }
1858 }
1859
1860
1861 void Buffer::getLabelList(vector<docstring> & list) const
1862 {
1863         // If this is a child document, use the master's list instead.
1864         if (parent()) {
1865                 masterBuffer()->getLabelList(list);
1866                 return;
1867         }
1868
1869         list.clear();
1870         Toc & toc = d->toc_backend.toc("label");
1871         TocIterator toc_it = toc.begin();
1872         TocIterator end = toc.end();
1873         for (; toc_it != end; ++toc_it) {
1874                 if (toc_it->depth() == 0)
1875                         list.push_back(toc_it->str());
1876         }
1877 }
1878
1879
1880 void Buffer::updateBibfilesCache(UpdateScope scope) const
1881 {
1882         // FIXME This is probably unnecssary, given where we call this.
1883         // If this is a child document, use the parent's cache instead.
1884         if (parent() && scope != UpdateChildOnly) {
1885                 masterBuffer()->updateBibfilesCache();
1886                 return;
1887         }
1888
1889         d->bibfiles_cache_.clear();
1890         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
1891                 if (it->lyxCode() == BIBTEX_CODE) {
1892                         InsetBibtex const & inset = static_cast<InsetBibtex const &>(*it);
1893                         support::FileNameList const bibfiles = inset.getBibFiles();
1894                         d->bibfiles_cache_.insert(d->bibfiles_cache_.end(),
1895                                 bibfiles.begin(),
1896                                 bibfiles.end());
1897                 } else if (it->lyxCode() == INCLUDE_CODE) {
1898                         InsetInclude & inset = static_cast<InsetInclude &>(*it);
1899                         Buffer const * const incbuf = inset.getChildBuffer();
1900                         if (!incbuf)
1901                                 continue;
1902                         support::FileNameList const & bibfiles =
1903                                         incbuf->getBibfilesCache(UpdateChildOnly);
1904                         if (!bibfiles.empty()) {
1905                                 d->bibfiles_cache_.insert(d->bibfiles_cache_.end(),
1906                                         bibfiles.begin(),
1907                                         bibfiles.end());
1908                         }
1909                 }
1910         }
1911         d->bibfile_cache_valid_ = true;
1912         d->bibinfo_cache_valid_ = false;
1913         d->cite_labels_valid_ = false;
1914 }
1915
1916
1917 void Buffer::invalidateBibinfoCache() const
1918 {
1919         d->bibinfo_cache_valid_ = false;
1920         d->cite_labels_valid_ = false;
1921         // also invalidate the cache for the parent buffer
1922         Buffer const * const pbuf = d->parent();
1923         if (pbuf)
1924                 pbuf->invalidateBibinfoCache();
1925 }
1926
1927
1928 void Buffer::invalidateBibfileCache() const
1929 {
1930         d->bibfile_cache_valid_ = false;
1931         d->bibinfo_cache_valid_ = false;
1932         d->cite_labels_valid_ = false;
1933         // also invalidate the cache for the parent buffer
1934         Buffer const * const pbuf = d->parent();
1935         if (pbuf)
1936                 pbuf->invalidateBibfileCache();
1937 }
1938
1939
1940 support::FileNameList const & Buffer::getBibfilesCache(UpdateScope scope) const
1941 {
1942         // FIXME This is probably unnecessary, given where we call this.
1943         // If this is a child document, use the master's cache instead.
1944         Buffer const * const pbuf = masterBuffer();
1945         if (pbuf != this && scope != UpdateChildOnly)
1946                 return pbuf->getBibfilesCache();
1947
1948         if (!d->bibfile_cache_valid_)
1949                 this->updateBibfilesCache(scope);
1950
1951         return d->bibfiles_cache_;
1952 }
1953
1954
1955 BiblioInfo const & Buffer::masterBibInfo() const
1956 {
1957         Buffer const * const tmp = masterBuffer();
1958         if (tmp != this)
1959                 return tmp->masterBibInfo();
1960         return d->bibinfo_;
1961 }
1962
1963
1964 void Buffer::checkIfBibInfoCacheIsValid() const
1965 {
1966         // use the master's cache
1967         Buffer const * const tmp = masterBuffer();
1968         if (tmp != this) {
1969                 tmp->checkIfBibInfoCacheIsValid();
1970                 return;
1971         }
1972
1973         // compare the cached timestamps with the actual ones.
1974         FileNameList const & bibfiles_cache = getBibfilesCache();
1975         FileNameList::const_iterator ei = bibfiles_cache.begin();
1976         FileNameList::const_iterator en = bibfiles_cache.end();
1977         for (; ei != en; ++ ei) {
1978                 time_t lastw = ei->lastModified();
1979                 time_t prevw = d->bibfile_status_[*ei];
1980                 if (lastw != prevw) {
1981                         d->bibinfo_cache_valid_ = false;
1982                         d->cite_labels_valid_ = false;
1983                         d->bibfile_status_[*ei] = lastw;
1984                 }
1985         }
1986 }
1987
1988
1989 void Buffer::reloadBibInfoCache() const
1990 {
1991         // use the master's cache
1992         Buffer const * const tmp = masterBuffer();
1993         if (tmp != this) {
1994                 tmp->reloadBibInfoCache();
1995                 return;
1996         }
1997
1998         checkIfBibInfoCacheIsValid();
1999         if (d->bibinfo_cache_valid_)
2000                 return;
2001
2002         d->bibinfo_.clear();
2003         collectBibKeys();
2004         d->bibinfo_cache_valid_ = true;
2005 }
2006
2007
2008 void Buffer::collectBibKeys() const
2009 {
2010         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it)
2011                 it->collectBibKeys(it);
2012 }
2013
2014
2015 void Buffer::addBiblioInfo(BiblioInfo const & bi) const
2016 {
2017         Buffer const * tmp = masterBuffer();
2018         BiblioInfo & masterbi = (tmp == this) ?
2019                 d->bibinfo_ : tmp->d->bibinfo_;
2020         masterbi.mergeBiblioInfo(bi);
2021 }
2022
2023
2024 void Buffer::addBibTeXInfo(docstring const & key, BibTeXInfo const & bi) const
2025 {
2026         Buffer const * tmp = masterBuffer();
2027         BiblioInfo & masterbi = (tmp == this) ?
2028                 d->bibinfo_ : tmp->d->bibinfo_;
2029         masterbi[key] = bi;
2030 }
2031
2032
2033 bool Buffer::citeLabelsValid() const
2034 {
2035         return masterBuffer()->d->cite_labels_valid_;
2036 }
2037
2038
2039 bool Buffer::isDepClean(string const & name) const
2040 {
2041         DepClean::const_iterator const it = d->dep_clean.find(name);
2042         if (it == d->dep_clean.end())
2043                 return true;
2044         return it->second;
2045 }
2046
2047
2048 void Buffer::markDepClean(string const & name)
2049 {
2050         d->dep_clean[name] = true;
2051 }
2052
2053
2054 bool Buffer::getStatus(FuncRequest const & cmd, FuncStatus & flag)
2055 {
2056         if (isInternal()) {
2057                 // FIXME? if there is an Buffer LFUN that can be dispatched even
2058                 // if internal, put a switch '(cmd.action)' here.
2059                 return false;
2060         }
2061
2062         bool enable = true;
2063
2064         switch (cmd.action()) {
2065
2066                 case LFUN_BUFFER_TOGGLE_READ_ONLY:
2067                         flag.setOnOff(isReadonly());
2068                         break;
2069
2070                 // FIXME: There is need for a command-line import.
2071                 //case LFUN_BUFFER_IMPORT:
2072
2073                 case LFUN_BUFFER_AUTO_SAVE:
2074                         break;
2075
2076                 case LFUN_BUFFER_EXPORT_CUSTOM:
2077                         // FIXME: Nothing to check here?
2078                         break;
2079
2080                 case LFUN_BUFFER_EXPORT: {
2081                         docstring const arg = cmd.argument();
2082                         if (arg == "custom") {
2083                                 enable = true;
2084                                 break;
2085                         }
2086                         string format = to_utf8(arg);
2087                         size_t pos = format.find(' ');
2088                         if (pos != string::npos)
2089                                 format = format.substr(0, pos);
2090                         enable = params().isExportable(format);
2091                         if (!enable)
2092                                 flag.message(bformat(
2093                                         _("Don't know how to export to format: %1$s"), arg));
2094                         break;
2095                 }
2096
2097                 case LFUN_BUFFER_CHKTEX:
2098                         enable = params().isLatex() && !lyxrc.chktex_command.empty();
2099                         break;
2100
2101                 case LFUN_BUILD_PROGRAM:
2102                         enable = params().isExportable("program");
2103                         break;
2104
2105                 case LFUN_BRANCH_ADD:
2106                 case LFUN_BRANCHES_RENAME:
2107                 case LFUN_BUFFER_PRINT:
2108                         // if no Buffer is present, then of course we won't be called!
2109                         break;
2110
2111                 case LFUN_BUFFER_LANGUAGE:
2112                         enable = !isReadonly();
2113                         break;
2114
2115                 default:
2116                         return false;
2117         }
2118         flag.setEnabled(enable);
2119         return true;
2120 }
2121
2122
2123 void Buffer::dispatch(string const & command, DispatchResult & result)
2124 {
2125         return dispatch(lyxaction.lookupFunc(command), result);
2126 }
2127
2128
2129 // NOTE We can end up here even if we have no GUI, because we are called
2130 // by LyX::exec to handled command-line requests. So we may need to check
2131 // whether we have a GUI or not. The boolean use_gui holds this information.
2132 void Buffer::dispatch(FuncRequest const & func, DispatchResult & dr)
2133 {
2134         if (isInternal()) {
2135                 // FIXME? if there is an Buffer LFUN that can be dispatched even
2136                 // if internal, put a switch '(cmd.action())' here.
2137                 dr.dispatched(false);
2138                 return;
2139         }
2140         string const argument = to_utf8(func.argument());
2141         // We'll set this back to false if need be.
2142         bool dispatched = true;
2143         undo().beginUndoGroup();
2144
2145         switch (func.action()) {
2146         case LFUN_BUFFER_TOGGLE_READ_ONLY:
2147                 if (lyxvc().inUse())
2148                         lyxvc().toggleReadOnly();
2149                 else
2150                         setReadonly(!isReadonly());
2151                 break;
2152
2153         case LFUN_BUFFER_EXPORT: {
2154                 ExportStatus const status = doExport(argument, false);
2155                 dr.setError(status != ExportSuccess);
2156                 if (status != ExportSuccess)
2157                         dr.setMessage(bformat(_("Error exporting to format: %1$s."),
2158                                               func.argument()));
2159                 break;
2160         }
2161
2162         case LFUN_BUILD_PROGRAM:
2163                 doExport("program", true);
2164                 break;
2165
2166         case LFUN_BUFFER_CHKTEX:
2167                 runChktex();
2168                 break;
2169
2170         case LFUN_BUFFER_EXPORT_CUSTOM: {
2171                 string format_name;
2172                 string command = split(argument, format_name, ' ');
2173                 Format const * format = formats.getFormat(format_name);
2174                 if (!format) {
2175                         lyxerr << "Format \"" << format_name
2176                                 << "\" not recognized!"
2177                                 << endl;
2178                         break;
2179                 }
2180
2181                 // The name of the file created by the conversion process
2182                 string filename;
2183
2184                 // Output to filename
2185                 if (format->name() == "lyx") {
2186                         string const latexname = latexName(false);
2187                         filename = changeExtension(latexname,
2188                                 format->extension());
2189                         filename = addName(temppath(), filename);
2190
2191                         if (!writeFile(FileName(filename)))
2192                                 break;
2193
2194                 } else {
2195                         doExport(format_name, true, filename);
2196                 }
2197
2198                 // Substitute $$FName for filename
2199                 if (!contains(command, "$$FName"))
2200                         command = "( " + command + " ) < $$FName";
2201                 command = subst(command, "$$FName", filename);
2202
2203                 // Execute the command in the background
2204                 Systemcall call;
2205                 call.startscript(Systemcall::DontWait, command, filePath());
2206                 break;
2207         }
2208
2209         // FIXME: There is need for a command-line import.
2210         /*
2211         case LFUN_BUFFER_IMPORT:
2212                 doImport(argument);
2213                 break;
2214         */
2215
2216         case LFUN_BUFFER_AUTO_SAVE:
2217                 autoSave();
2218                 resetAutosaveTimers();
2219                 break;
2220
2221         case LFUN_BRANCH_ADD: {
2222                 docstring branch_name = func.argument();
2223                 if (branch_name.empty()) {
2224                         dispatched = false;
2225                         break;
2226                 }
2227                 BranchList & branch_list = params().branchlist();
2228                 vector<docstring> const branches =
2229                         getVectorFromString(branch_name, branch_list.separator());
2230                 docstring msg;
2231                 for (vector<docstring>::const_iterator it = branches.begin();
2232                      it != branches.end(); ++it) {
2233                         branch_name = *it;
2234                         Branch * branch = branch_list.find(branch_name);
2235                         if (branch) {
2236                                 LYXERR0("Branch " << branch_name << " already exists.");
2237                                 dr.setError(true);
2238                                 if (!msg.empty())
2239                                         msg += ("\n");
2240                                 msg += bformat(_("Branch \"%1$s\" already exists."), branch_name);
2241                         } else {
2242                                 branch_list.add(branch_name);
2243                                 branch = branch_list.find(branch_name);
2244                                 string const x11hexname = X11hexname(branch->color());
2245                                 docstring const str = branch_name + ' ' + from_ascii(x11hexname);
2246                                 lyx::dispatch(FuncRequest(LFUN_SET_COLOR, str));
2247                                 dr.setError(false);
2248                                 dr.screenUpdate(Update::Force);
2249                         }
2250                 }
2251                 if (!msg.empty())
2252                         dr.setMessage(msg);
2253                 break;
2254         }
2255
2256         case LFUN_BRANCHES_RENAME: {
2257                 if (func.argument().empty())
2258                         break;
2259
2260                 docstring const oldname = from_utf8(func.getArg(0));
2261                 docstring const newname = from_utf8(func.getArg(1));
2262                 InsetIterator it  = inset_iterator_begin(inset());
2263                 InsetIterator const end = inset_iterator_end(inset());
2264                 bool success = false;
2265                 for (; it != end; ++it) {
2266                         if (it->lyxCode() == BRANCH_CODE) {
2267                                 InsetBranch & ins = static_cast<InsetBranch &>(*it);
2268                                 if (ins.branch() == oldname) {
2269                                         undo().recordUndo(it);
2270                                         ins.rename(newname);
2271                                         success = true;
2272                                         continue;
2273                                 }
2274                         }
2275                         if (it->lyxCode() == INCLUDE_CODE) {
2276                                 // get buffer of external file
2277                                 InsetInclude const & ins =
2278                                         static_cast<InsetInclude const &>(*it);
2279                                 Buffer * child = ins.getChildBuffer();
2280                                 if (!child)
2281                                         continue;
2282                                 child->dispatch(func, dr);
2283                         }
2284                 }
2285
2286                 if (success) {
2287                         dr.screenUpdate(Update::Force);
2288                         dr.forceBufferUpdate();
2289                 }
2290                 break;
2291         }
2292
2293         case LFUN_BUFFER_PRINT: {
2294                 // we'll assume there's a problem until we succeed
2295                 dr.setError(true);
2296                 string target = func.getArg(0);
2297                 string target_name = func.getArg(1);
2298                 string command = func.getArg(2);
2299
2300                 if (target.empty()
2301                     || target_name.empty()
2302                     || command.empty()) {
2303                         LYXERR0("Unable to parse " << func.argument());
2304                         docstring const msg =
2305                                 bformat(_("Unable to parse \"%1$s\""), func.argument());
2306                         dr.setMessage(msg);
2307                         break;
2308                 }
2309                 if (target != "printer" && target != "file") {
2310                         LYXERR0("Unrecognized target \"" << target << '"');
2311                         docstring const msg =
2312                                 bformat(_("Unrecognized target \"%1$s\""), from_utf8(target));
2313                         dr.setMessage(msg);
2314                         break;
2315                 }
2316
2317                 if (!doExport("dvi", true)) {
2318                         showPrintError(absFileName());
2319                         dr.setMessage(_("Error exporting to DVI."));
2320                         break;
2321                 }
2322
2323                 // Push directory path.
2324                 string const path = temppath();
2325                 // Prevent the compiler from optimizing away p
2326                 FileName pp(path);
2327                 PathChanger p(pp);
2328
2329                 // there are three cases here:
2330                 // 1. we print to a file
2331                 // 2. we print directly to a printer
2332                 // 3. we print using a spool command (print to file first)
2333                 Systemcall one;
2334                 int res = 0;
2335                 string const dviname = changeExtension(latexName(true), "dvi");
2336
2337                 if (target == "printer") {
2338                         if (!lyxrc.print_spool_command.empty()) {
2339                                 // case 3: print using a spool
2340                                 string const psname = changeExtension(dviname,".ps");
2341                                 command += ' ' + lyxrc.print_to_file
2342                                         + quoteName(psname)
2343                                         + ' '
2344                                         + quoteName(dviname);
2345
2346                                 string command2 = lyxrc.print_spool_command + ' ';
2347                                 if (target_name != "default") {
2348                                         command2 += lyxrc.print_spool_printerprefix
2349                                                 + target_name
2350                                                 + ' ';
2351                                 }
2352                                 command2 += quoteName(psname);
2353                                 // First run dvips.
2354                                 // If successful, then spool command
2355                                 res = one.startscript(Systemcall::Wait, command,
2356                                                       filePath());
2357
2358                                 if (res == 0) {
2359                                         // If there's no GUI, we have to wait on this command. Otherwise,
2360                                         // LyX deletes the temporary directory, and with it the spooled
2361                                         // file, before it can be printed!!
2362                                         Systemcall::Starttype stype = use_gui ?
2363                                                 Systemcall::DontWait : Systemcall::Wait;
2364                                         res = one.startscript(stype, command2,
2365                                                               filePath());
2366                                 }
2367                         } else {
2368                                 // case 2: print directly to a printer
2369                                 if (target_name != "default")
2370                                         command += ' ' + lyxrc.print_to_printer + target_name + ' ';
2371                                 // as above....
2372                                 Systemcall::Starttype stype = use_gui ?
2373                                         Systemcall::DontWait : Systemcall::Wait;
2374                                 res = one.startscript(stype, command +
2375                                                 quoteName(dviname), filePath());
2376                         }
2377
2378                 } else {
2379                         // case 1: print to a file
2380                         FileName const filename(makeAbsPath(target_name, filePath()));
2381                         FileName const dvifile(makeAbsPath(dviname, path));
2382                         if (filename.exists()) {
2383                                 docstring text = bformat(
2384                                         _("The file %1$s already exists.\n\n"
2385                                           "Do you want to overwrite that file?"),
2386                                         makeDisplayPath(filename.absFileName()));
2387                                 if (Alert::prompt(_("Overwrite file?"),
2388                                                   text, 0, 1, _("&Overwrite"), _("&Cancel")) != 0)
2389                                         break;
2390                         }
2391                         command += ' ' + lyxrc.print_to_file
2392                                 + quoteName(filename.toFilesystemEncoding())
2393                                 + ' '
2394                                 + quoteName(dvifile.toFilesystemEncoding());
2395                         // as above....
2396                         Systemcall::Starttype stype = use_gui ?
2397                                 Systemcall::DontWait : Systemcall::Wait;
2398                         res = one.startscript(stype, command, filePath());
2399                 }
2400
2401                 if (res == 0)
2402                         dr.setError(false);
2403                 else {
2404                         dr.setMessage(_("Error running external commands."));
2405                         showPrintError(absFileName());
2406                 }
2407                 break;
2408         }
2409
2410         default:
2411                 dispatched = false;
2412                 break;
2413         }
2414         dr.dispatched(dispatched);
2415         undo().endUndoGroup();
2416 }
2417
2418
2419 void Buffer::changeLanguage(Language const * from, Language const * to)
2420 {
2421         LASSERT(from, /**/);
2422         LASSERT(to, /**/);
2423
2424         for_each(par_iterator_begin(),
2425                  par_iterator_end(),
2426                  bind(&Paragraph::changeLanguage, _1, params(), from, to));
2427 }
2428
2429
2430 bool Buffer::isMultiLingual() const
2431 {
2432         ParConstIterator end = par_iterator_end();
2433         for (ParConstIterator it = par_iterator_begin(); it != end; ++it)
2434                 if (it->isMultiLingual(params()))
2435                         return true;
2436
2437         return false;
2438 }
2439
2440
2441 std::set<Language const *> Buffer::getLanguages() const
2442 {
2443         std::set<Language const *> languages;
2444         getLanguages(languages);
2445         return languages;
2446 }
2447
2448
2449 void Buffer::getLanguages(std::set<Language const *> & languages) const
2450 {
2451         ParConstIterator end = par_iterator_end();
2452         // add the buffer language, even if it's not actively used
2453         languages.insert(language());
2454         // iterate over the paragraphs
2455         for (ParConstIterator it = par_iterator_begin(); it != end; ++it)
2456                 it->getLanguages(languages);
2457         // also children
2458         ListOfBuffers clist = getDescendents();
2459         ListOfBuffers::const_iterator cit = clist.begin();
2460         ListOfBuffers::const_iterator const cen = clist.end();
2461         for (; cit != cen; ++cit)
2462                 (*cit)->getLanguages(languages);
2463 }
2464
2465
2466 DocIterator Buffer::getParFromID(int const id) const
2467 {
2468         Buffer * buf = const_cast<Buffer *>(this);
2469         if (id < 0) {
2470                 // John says this is called with id == -1 from undo
2471                 lyxerr << "getParFromID(), id: " << id << endl;
2472                 return doc_iterator_end(buf);
2473         }
2474
2475         for (DocIterator it = doc_iterator_begin(buf); !it.atEnd(); it.forwardPar())
2476                 if (it.paragraph().id() == id)
2477                         return it;
2478
2479         return doc_iterator_end(buf);
2480 }
2481
2482
2483 bool Buffer::hasParWithID(int const id) const
2484 {
2485         return !getParFromID(id).atEnd();
2486 }
2487
2488
2489 ParIterator Buffer::par_iterator_begin()
2490 {
2491         return ParIterator(doc_iterator_begin(this));
2492 }
2493
2494
2495 ParIterator Buffer::par_iterator_end()
2496 {
2497         return ParIterator(doc_iterator_end(this));
2498 }
2499
2500
2501 ParConstIterator Buffer::par_iterator_begin() const
2502 {
2503         return ParConstIterator(doc_iterator_begin(this));
2504 }
2505
2506
2507 ParConstIterator Buffer::par_iterator_end() const
2508 {
2509         return ParConstIterator(doc_iterator_end(this));
2510 }
2511
2512
2513 Language const * Buffer::language() const
2514 {
2515         return params().language;
2516 }
2517
2518
2519 docstring const Buffer::B_(string const & l10n) const
2520 {
2521         return params().B_(l10n);
2522 }
2523
2524
2525 bool Buffer::isClean() const
2526 {
2527         return d->lyx_clean;
2528 }
2529
2530
2531 bool Buffer::isExternallyModified(CheckMethod method) const
2532 {
2533         LASSERT(d->filename.exists(), /**/);
2534         // if method == timestamp, check timestamp before checksum
2535         return (method == checksum_method
2536                 || d->timestamp_ != d->filename.lastModified())
2537                 && d->checksum_ != d->filename.checksum();
2538 }
2539
2540
2541 void Buffer::saveCheckSum() const
2542 {
2543         FileName const & file = d->filename;
2544
2545         file.refresh();
2546         if (file.exists()) {
2547                 d->timestamp_ = file.lastModified();
2548                 d->checksum_ = file.checksum();
2549         } else {
2550                 // in the case of save to a new file.
2551                 d->timestamp_ = 0;
2552                 d->checksum_ = 0;
2553         }
2554 }
2555
2556
2557 void Buffer::markClean() const
2558 {
2559         if (!d->lyx_clean) {
2560                 d->lyx_clean = true;
2561                 updateTitles();
2562         }
2563         // if the .lyx file has been saved, we don't need an
2564         // autosave
2565         d->bak_clean = true;
2566         d->undo_.markDirty();
2567 }
2568
2569
2570 void Buffer::setUnnamed(bool flag)
2571 {
2572         d->unnamed = flag;
2573 }
2574
2575
2576 bool Buffer::isUnnamed() const
2577 {
2578         return d->unnamed;
2579 }
2580
2581
2582 /// \note
2583 /// Don't check unnamed, here: isInternal() is used in
2584 /// newBuffer(), where the unnamed flag has not been set by anyone
2585 /// yet. Also, for an internal buffer, there should be no need for
2586 /// retrieving fileName() nor for checking if it is unnamed or not.
2587 bool Buffer::isInternal() const
2588 {
2589         return fileName().extension() == "internal";
2590 }
2591
2592
2593 void Buffer::markDirty()
2594 {
2595         if (d->lyx_clean) {
2596                 d->lyx_clean = false;
2597                 updateTitles();
2598         }
2599         d->bak_clean = false;
2600
2601         DepClean::iterator it = d->dep_clean.begin();
2602         DepClean::const_iterator const end = d->dep_clean.end();
2603
2604         for (; it != end; ++it)
2605                 it->second = false;
2606 }
2607
2608
2609 FileName Buffer::fileName() const
2610 {
2611         return d->filename;
2612 }
2613
2614
2615 string Buffer::absFileName() const
2616 {
2617         return d->filename.absFileName();
2618 }
2619
2620
2621 string Buffer::filePath() const
2622 {
2623         return d->filename.onlyPath().absFileName() + "/";
2624 }
2625
2626
2627 bool Buffer::isReadonly() const
2628 {
2629         return d->read_only;
2630 }
2631
2632
2633 void Buffer::setParent(Buffer const * buffer)
2634 {
2635         // Avoids recursive include.
2636         d->setParent(buffer == this ? 0 : buffer);
2637         updateMacros();
2638 }
2639
2640
2641 Buffer const * Buffer::parent() const
2642 {
2643         return d->parent();
2644 }
2645
2646
2647 ListOfBuffers Buffer::allRelatives() const
2648 {
2649         ListOfBuffers lb = masterBuffer()->getDescendents();
2650         lb.push_front(const_cast<Buffer *>(masterBuffer()));
2651         return lb;
2652 }
2653
2654
2655 Buffer const * Buffer::masterBuffer() const
2656 {
2657         // FIXME Should be make sure we are not in some kind
2658         // of recursive include? A -> B -> A will crash this.
2659         Buffer const * const pbuf = d->parent();
2660         if (!pbuf)
2661                 return this;
2662
2663         return pbuf->masterBuffer();
2664 }
2665
2666
2667 bool Buffer::isChild(Buffer * child) const
2668 {
2669         return d->children_positions.find(child) != d->children_positions.end();
2670 }
2671
2672
2673 DocIterator Buffer::firstChildPosition(Buffer const * child)
2674 {
2675         Impl::BufferPositionMap::iterator it;
2676         it = d->children_positions.find(child);
2677         if (it == d->children_positions.end())
2678                 return DocIterator(this);
2679         return it->second;
2680 }
2681
2682
2683 bool Buffer::hasChildren() const
2684 {
2685         return !d->children_positions.empty();
2686 }
2687
2688
2689 void Buffer::collectChildren(ListOfBuffers & clist, bool grand_children) const
2690 {
2691         // loop over children
2692         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
2693         Impl::BufferPositionMap::iterator end = d->children_positions.end();
2694         for (; it != end; ++it) {
2695                 Buffer * child = const_cast<Buffer *>(it->first);
2696                 // No duplicates
2697                 ListOfBuffers::const_iterator bit = find(clist.begin(), clist.end(), child);
2698                 if (bit != clist.end())
2699                         continue;
2700                 clist.push_back(child);
2701                 if (grand_children)
2702                         // there might be grandchildren
2703                         child->collectChildren(clist, true);
2704         }
2705 }
2706
2707
2708 ListOfBuffers Buffer::getChildren() const
2709 {
2710         ListOfBuffers v;
2711         collectChildren(v, false);
2712         // Make sure we have not included ourselves.
2713         ListOfBuffers::iterator bit = find(v.begin(), v.end(), this);
2714         if (bit != v.end()) {
2715                 LYXERR0("Recursive include detected in `" << fileName() << "'.");
2716                 v.erase(bit);
2717         }
2718         return v;
2719 }
2720
2721
2722 ListOfBuffers Buffer::getDescendents() const
2723 {
2724         ListOfBuffers v;
2725         collectChildren(v, true);
2726         // Make sure we have not included ourselves.
2727         ListOfBuffers::iterator bit = find(v.begin(), v.end(), this);
2728         if (bit != v.end()) {
2729                 LYXERR0("Recursive include detected in `" << fileName() << "'.");
2730                 v.erase(bit);
2731         }
2732         return v;
2733 }
2734
2735
2736 template<typename M>
2737 typename M::const_iterator greatest_below(M & m, typename M::key_type const & x)
2738 {
2739         if (m.empty())
2740                 return m.end();
2741
2742         typename M::const_iterator it = m.lower_bound(x);
2743         if (it == m.begin())
2744                 return m.end();
2745
2746         it--;
2747         return it;
2748 }
2749
2750
2751 MacroData const * Buffer::Impl::getBufferMacro(docstring const & name,
2752                                          DocIterator const & pos) const
2753 {
2754         LYXERR(Debug::MACROS, "Searching for " << to_ascii(name) << " at " << pos);
2755
2756         // if paragraphs have no macro context set, pos will be empty
2757         if (pos.empty())
2758                 return 0;
2759
2760         // we haven't found anything yet
2761         DocIterator bestPos = owner_->par_iterator_begin();
2762         MacroData const * bestData = 0;
2763
2764         // find macro definitions for name
2765         NamePositionScopeMacroMap::const_iterator nameIt = macros.find(name);
2766         if (nameIt != macros.end()) {
2767                 // find last definition in front of pos or at pos itself
2768                 PositionScopeMacroMap::const_iterator it
2769                         = greatest_below(nameIt->second, pos);
2770                 if (it != nameIt->second.end()) {
2771                         while (true) {
2772                                 // scope ends behind pos?
2773                                 if (pos < it->second.first) {
2774                                         // Looks good, remember this. If there
2775                                         // is no external macro behind this,
2776                                         // we found the right one already.
2777                                         bestPos = it->first;
2778                                         bestData = &it->second.second;
2779                                         break;
2780                                 }
2781
2782                                 // try previous macro if there is one
2783                                 if (it == nameIt->second.begin())
2784                                         break;
2785                                 it--;
2786                         }
2787                 }
2788         }
2789
2790         // find macros in included files
2791         PositionScopeBufferMap::const_iterator it
2792                 = greatest_below(position_to_children, pos);
2793         if (it == position_to_children.end())
2794                 // no children before
2795                 return bestData;
2796
2797         while (true) {
2798                 // do we know something better (i.e. later) already?
2799                 if (it->first < bestPos )
2800                         break;
2801
2802                 // scope ends behind pos?
2803                 if (pos < it->second.first
2804                         && (cloned_buffer_ ||
2805                             theBufferList().isLoaded(it->second.second))) {
2806                         // look for macro in external file
2807                         macro_lock = true;
2808                         MacroData const * data
2809                                 = it->second.second->getMacro(name, false);
2810                         macro_lock = false;
2811                         if (data) {
2812                                 bestPos = it->first;
2813                                 bestData = data;
2814                                 break;
2815                         }
2816                 }
2817
2818                 // try previous file if there is one
2819                 if (it == position_to_children.begin())
2820                         break;
2821                 --it;
2822         }
2823
2824         // return the best macro we have found
2825         return bestData;
2826 }
2827
2828
2829 MacroData const * Buffer::getMacro(docstring const & name,
2830         DocIterator const & pos, bool global) const
2831 {
2832         if (d->macro_lock)
2833                 return 0;
2834
2835         // query buffer macros
2836         MacroData const * data = d->getBufferMacro(name, pos);
2837         if (data != 0)
2838                 return data;
2839
2840         // If there is a master buffer, query that
2841         Buffer const * const pbuf = d->parent();
2842         if (pbuf) {
2843                 d->macro_lock = true;
2844                 MacroData const * macro = pbuf->getMacro(
2845                         name, *this, false);
2846                 d->macro_lock = false;
2847                 if (macro)
2848                         return macro;
2849         }
2850
2851         if (global) {
2852                 data = MacroTable::globalMacros().get(name);
2853                 if (data != 0)
2854                         return data;
2855         }
2856
2857         return 0;
2858 }
2859
2860
2861 MacroData const * Buffer::getMacro(docstring const & name, bool global) const
2862 {
2863         // set scope end behind the last paragraph
2864         DocIterator scope = par_iterator_begin();
2865         scope.pit() = scope.lastpit() + 1;
2866
2867         return getMacro(name, scope, global);
2868 }
2869
2870
2871 MacroData const * Buffer::getMacro(docstring const & name,
2872         Buffer const & child, bool global) const
2873 {
2874         // look where the child buffer is included first
2875         Impl::BufferPositionMap::iterator it = d->children_positions.find(&child);
2876         if (it == d->children_positions.end())
2877                 return 0;
2878
2879         // check for macros at the inclusion position
2880         return getMacro(name, it->second, global);
2881 }
2882
2883
2884 void Buffer::Impl::updateMacros(DocIterator & it, DocIterator & scope)
2885 {
2886         pit_type const lastpit = it.lastpit();
2887
2888         // look for macros in each paragraph
2889         while (it.pit() <= lastpit) {
2890                 Paragraph & par = it.paragraph();
2891
2892                 // iterate over the insets of the current paragraph
2893                 InsetList const & insets = par.insetList();
2894                 InsetList::const_iterator iit = insets.begin();
2895                 InsetList::const_iterator end = insets.end();
2896                 for (; iit != end; ++iit) {
2897                         it.pos() = iit->pos;
2898
2899                         // is it a nested text inset?
2900                         if (iit->inset->asInsetText()) {
2901                                 // Inset needs its own scope?
2902                                 InsetText const * itext = iit->inset->asInsetText();
2903                                 bool newScope = itext->isMacroScope();
2904
2905                                 // scope which ends just behind the inset
2906                                 DocIterator insetScope = it;
2907                                 ++insetScope.pos();
2908
2909                                 // collect macros in inset
2910                                 it.push_back(CursorSlice(*iit->inset));
2911                                 updateMacros(it, newScope ? insetScope : scope);
2912                                 it.pop_back();
2913                                 continue;
2914                         }
2915
2916                         if (iit->inset->asInsetTabular()) {
2917                                 CursorSlice slice(*iit->inset);
2918                                 size_t const numcells = slice.nargs();
2919                                 for (; slice.idx() < numcells; slice.forwardIdx()) {
2920                                         it.push_back(slice);
2921                                         updateMacros(it, scope);
2922                                         it.pop_back();
2923                                 }
2924                                 continue;
2925                         }
2926
2927                         // is it an external file?
2928                         if (iit->inset->lyxCode() == INCLUDE_CODE) {
2929                                 // get buffer of external file
2930                                 InsetInclude const & inset =
2931                                         static_cast<InsetInclude const &>(*iit->inset);
2932                                 macro_lock = true;
2933                                 Buffer * child = inset.getChildBuffer();
2934                                 macro_lock = false;
2935                                 if (!child)
2936                                         continue;
2937
2938                                 // register its position, but only when it is
2939                                 // included first in the buffer
2940                                 if (children_positions.find(child) ==
2941                                         children_positions.end())
2942                                                 children_positions[child] = it;
2943
2944                                 // register child with its scope
2945                                 position_to_children[it] = Impl::ScopeBuffer(scope, child);
2946                                 continue;
2947                         }
2948
2949                         InsetMath * im = iit->inset->asInsetMath();
2950                         if (doing_export && im)  {
2951                                 InsetMathHull * hull = im->asHullInset();
2952                                 if (hull)
2953                                         hull->recordLocation(it);
2954                         }
2955
2956                         if (iit->inset->lyxCode() != MATHMACRO_CODE)
2957                                 continue;
2958
2959                         // get macro data
2960                         MathMacroTemplate & macroTemplate =
2961                                 *iit->inset->asInsetMath()->asMacroTemplate();
2962                         MacroContext mc(owner_, it);
2963                         macroTemplate.updateToContext(mc);
2964
2965                         // valid?
2966                         bool valid = macroTemplate.validMacro();
2967                         // FIXME: Should be fixNameAndCheckIfValid() in fact,
2968                         // then the BufferView's cursor will be invalid in
2969                         // some cases which leads to crashes.
2970                         if (!valid)
2971                                 continue;
2972
2973                         // register macro
2974                         // FIXME (Abdel), I don't understandt why we pass 'it' here
2975                         // instead of 'macroTemplate' defined above... is this correct?
2976                         macros[macroTemplate.name()][it] =
2977                                 Impl::ScopeMacro(scope, MacroData(const_cast<Buffer *>(owner_), it));
2978                 }
2979
2980                 // next paragraph
2981                 it.pit()++;
2982                 it.pos() = 0;
2983         }
2984 }
2985
2986
2987 void Buffer::updateMacros() const
2988 {
2989         if (d->macro_lock)
2990                 return;
2991
2992         LYXERR(Debug::MACROS, "updateMacro of " << d->filename.onlyFileName());
2993
2994         // start with empty table
2995         d->macros.clear();
2996         d->children_positions.clear();
2997         d->position_to_children.clear();
2998
2999         // Iterate over buffer, starting with first paragraph
3000         // The scope must be bigger than any lookup DocIterator
3001         // later. For the global lookup, lastpit+1 is used, hence
3002         // we use lastpit+2 here.
3003         DocIterator it = par_iterator_begin();
3004         DocIterator outerScope = it;
3005         outerScope.pit() = outerScope.lastpit() + 2;
3006         d->updateMacros(it, outerScope);
3007 }
3008
3009
3010 void Buffer::getUsedBranches(std::list<docstring> & result, bool const from_master) const
3011 {
3012         InsetIterator it  = inset_iterator_begin(inset());
3013         InsetIterator const end = inset_iterator_end(inset());
3014         for (; it != end; ++it) {
3015                 if (it->lyxCode() == BRANCH_CODE) {
3016                         InsetBranch & br = static_cast<InsetBranch &>(*it);
3017                         docstring const name = br.branch();
3018                         if (!from_master && !params().branchlist().find(name))
3019                                 result.push_back(name);
3020                         else if (from_master && !masterBuffer()->params().branchlist().find(name))
3021                                 result.push_back(name);
3022                         continue;
3023                 }
3024                 if (it->lyxCode() == INCLUDE_CODE) {
3025                         // get buffer of external file
3026                         InsetInclude const & ins =
3027                                 static_cast<InsetInclude const &>(*it);
3028                         Buffer * child = ins.getChildBuffer();
3029                         if (!child)
3030                                 continue;
3031                         child->getUsedBranches(result, true);
3032                 }
3033         }
3034         // remove duplicates
3035         result.unique();
3036 }
3037
3038
3039 void Buffer::updateMacroInstances(UpdateType utype) const
3040 {
3041         LYXERR(Debug::MACROS, "updateMacroInstances for "
3042                 << d->filename.onlyFileName());
3043         DocIterator it = doc_iterator_begin(this);
3044         it.forwardInset();
3045         DocIterator const end = doc_iterator_end(this);
3046         for (; it != end; it.forwardInset()) {
3047                 // look for MathData cells in InsetMathNest insets
3048                 InsetMath * minset = it.nextInset()->asInsetMath();
3049                 if (!minset)
3050                         continue;
3051
3052                 // update macro in all cells of the InsetMathNest
3053                 DocIterator::idx_type n = minset->nargs();
3054                 MacroContext mc = MacroContext(this, it);
3055                 for (DocIterator::idx_type i = 0; i < n; ++i) {
3056                         MathData & data = minset->cell(i);
3057                         data.updateMacros(0, mc, utype);
3058                 }
3059         }
3060 }
3061
3062
3063 void Buffer::listMacroNames(MacroNameSet & macros) const
3064 {
3065         if (d->macro_lock)
3066                 return;
3067
3068         d->macro_lock = true;
3069
3070         // loop over macro names
3071         Impl::NamePositionScopeMacroMap::iterator nameIt = d->macros.begin();
3072         Impl::NamePositionScopeMacroMap::iterator nameEnd = d->macros.end();
3073         for (; nameIt != nameEnd; ++nameIt)
3074                 macros.insert(nameIt->first);
3075
3076         // loop over children
3077         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
3078         Impl::BufferPositionMap::iterator end = d->children_positions.end();
3079         for (; it != end; ++it)
3080                 it->first->listMacroNames(macros);
3081
3082         // call parent
3083         Buffer const * const pbuf = d->parent();
3084         if (pbuf)
3085                 pbuf->listMacroNames(macros);
3086
3087         d->macro_lock = false;
3088 }
3089
3090
3091 void Buffer::listParentMacros(MacroSet & macros, LaTeXFeatures & features) const
3092 {
3093         Buffer const * const pbuf = d->parent();
3094         if (!pbuf)
3095                 return;
3096
3097         MacroNameSet names;
3098         pbuf->listMacroNames(names);
3099
3100         // resolve macros
3101         MacroNameSet::iterator it = names.begin();
3102         MacroNameSet::iterator end = names.end();
3103         for (; it != end; ++it) {
3104                 // defined?
3105                 MacroData const * data =
3106                 pbuf->getMacro(*it, *this, false);
3107                 if (data) {
3108                         macros.insert(data);
3109
3110                         // we cannot access the original MathMacroTemplate anymore
3111                         // here to calls validate method. So we do its work here manually.
3112                         // FIXME: somehow make the template accessible here.
3113                         if (data->optionals() > 0)
3114                                 features.require("xargs");
3115                 }
3116         }
3117 }
3118
3119
3120 Buffer::References & Buffer::references(docstring const & label)
3121 {
3122         if (d->parent())
3123                 return const_cast<Buffer *>(masterBuffer())->references(label);
3124
3125         RefCache::iterator it = d->ref_cache_.find(label);
3126         if (it != d->ref_cache_.end())
3127                 return it->second.second;
3128
3129         static InsetLabel const * dummy_il = 0;
3130         static References const dummy_refs;
3131         it = d->ref_cache_.insert(
3132                 make_pair(label, make_pair(dummy_il, dummy_refs))).first;
3133         return it->second.second;
3134 }
3135
3136
3137 Buffer::References const & Buffer::references(docstring const & label) const
3138 {
3139         return const_cast<Buffer *>(this)->references(label);
3140 }
3141
3142
3143 void Buffer::setInsetLabel(docstring const & label, InsetLabel const * il)
3144 {
3145         masterBuffer()->d->ref_cache_[label].first = il;
3146 }
3147
3148
3149 InsetLabel const * Buffer::insetLabel(docstring const & label) const
3150 {
3151         return masterBuffer()->d->ref_cache_[label].first;
3152 }
3153
3154
3155 void Buffer::clearReferenceCache() const
3156 {
3157         if (!d->parent())
3158                 d->ref_cache_.clear();
3159 }
3160
3161
3162 void Buffer::changeRefsIfUnique(docstring const & from, docstring const & to,
3163         InsetCode code)
3164 {
3165         //FIXME: This does not work for child documents yet.
3166         LASSERT(code == CITE_CODE, /**/);
3167
3168         reloadBibInfoCache();
3169
3170         // Check if the label 'from' appears more than once
3171         BiblioInfo const & keys = masterBibInfo();
3172         BiblioInfo::const_iterator bit  = keys.begin();
3173         BiblioInfo::const_iterator bend = keys.end();
3174         vector<docstring> labels;
3175
3176         for (; bit != bend; ++bit)
3177                 // FIXME UNICODE
3178                 labels.push_back(bit->first);
3179
3180         if (count(labels.begin(), labels.end(), from) > 1)
3181                 return;
3182
3183         string const paramName = "key";
3184         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
3185                 if (it->lyxCode() == code) {
3186                         InsetCommand * inset = it->asInsetCommand();
3187                         if (!inset)
3188                                 continue;
3189                         docstring const oldValue = inset->getParam(paramName);
3190                         if (oldValue == from)
3191                                 inset->setParam(paramName, to);
3192                 }
3193         }
3194 }
3195
3196
3197 void Buffer::getSourceCode(odocstream & os, string const format,
3198                            pit_type par_begin, pit_type par_end,
3199                            OutputWhat output) const
3200 {
3201         OutputParams runparams(&params().encoding());
3202         runparams.nice = true;
3203         runparams.flavor = params().getOutputFlavor(format);
3204         runparams.linelen = lyxrc.plaintext_linelen;
3205         // No side effect of file copying and image conversion
3206         runparams.dryrun = true;
3207
3208         if (output == CurrentParagraph) {
3209                 runparams.par_begin = par_begin;
3210                 runparams.par_end = par_end;
3211                 if (par_begin + 1 == par_end) {
3212                         os << "% "
3213                            << bformat(_("Preview source code for paragraph %1$d"), par_begin)
3214                            << "\n\n";
3215                 } else {
3216                         os << "% "
3217                            << bformat(_("Preview source code from paragraph %1$s to %2$s"),
3218                                         convert<docstring>(par_begin),
3219                                         convert<docstring>(par_end - 1))
3220                            << "\n\n";
3221                 }
3222                 TexRow texrow;
3223                 texrow.reset();
3224                 texrow.newline();
3225                 texrow.newline();
3226                 // output paragraphs
3227                 if (params().isDocBook())
3228                         docbookParagraphs(text(), *this, os, runparams);
3229                 else if (runparams.flavor == OutputParams::HTML) {
3230                         XHTMLStream xs(os);
3231                         xhtmlParagraphs(text(), *this, xs, runparams);
3232                 } else {
3233                         // latex or literate
3234                         otexstream ots(os, texrow);
3235                         latexParagraphs(*this, text(), ots, runparams);
3236                 }
3237         } else {
3238                 os << "% ";
3239                 if (output == FullSource)
3240                         os << _("Preview source code");
3241                 else if (output == OnlyPreamble)
3242                         os << _("Preview preamble");
3243                 else if (output == OnlyBody)
3244                         os << _("Preview body");
3245                 os << "\n\n";
3246                 d->texrow.reset();
3247                 d->texrow.newline();
3248                 d->texrow.newline();
3249                 if (params().isDocBook())
3250                         writeDocBookSource(os, absFileName(), runparams, output);
3251                 else if (runparams.flavor == OutputParams::HTML)
3252                         writeLyXHTMLSource(os, runparams, output);
3253                 else {
3254                         // latex or literate
3255                         otexstream ots(os, d->texrow);
3256                         writeLaTeXSource(ots, string(), runparams, output);
3257                 }
3258         }
3259 }
3260
3261
3262 ErrorList & Buffer::errorList(string const & type) const
3263 {
3264         return d->errorLists[type];
3265 }
3266
3267
3268 void Buffer::updateTocItem(std::string const & type,
3269         DocIterator const & dit) const
3270 {
3271         if (d->gui_)
3272                 d->gui_->updateTocItem(type, dit);
3273 }
3274
3275
3276 void Buffer::structureChanged() const
3277 {
3278         if (d->gui_)
3279                 d->gui_->structureChanged();
3280 }
3281
3282
3283 void Buffer::errors(string const & err, bool from_master) const
3284 {
3285         if (d->gui_)
3286                 d->gui_->errors(err, from_master);
3287 }
3288
3289
3290 void Buffer::message(docstring const & msg) const
3291 {
3292         if (d->gui_)
3293                 d->gui_->message(msg);
3294 }
3295
3296
3297 void Buffer::setBusy(bool on) const
3298 {
3299         if (d->gui_)
3300                 d->gui_->setBusy(on);
3301 }
3302
3303
3304 void Buffer::updateTitles() const
3305 {
3306         if (d->wa_)
3307                 d->wa_->updateTitles();
3308 }
3309
3310
3311 void Buffer::resetAutosaveTimers() const
3312 {
3313         if (d->gui_)
3314                 d->gui_->resetAutosaveTimers();
3315 }
3316
3317
3318 bool Buffer::hasGuiDelegate() const
3319 {
3320         return d->gui_;
3321 }
3322
3323
3324 void Buffer::setGuiDelegate(frontend::GuiBufferDelegate * gui)
3325 {
3326         d->gui_ = gui;
3327 }
3328
3329
3330
3331 namespace {
3332
3333 class AutoSaveBuffer : public ForkedProcess {
3334 public:
3335         ///
3336         AutoSaveBuffer(Buffer const & buffer, FileName const & fname)
3337                 : buffer_(buffer), fname_(fname) {}
3338         ///
3339         virtual shared_ptr<ForkedProcess> clone() const
3340         {
3341                 return shared_ptr<ForkedProcess>(new AutoSaveBuffer(*this));
3342         }
3343         ///
3344         int start()
3345         {
3346                 command_ = to_utf8(bformat(_("Auto-saving %1$s"),
3347                                                  from_utf8(fname_.absFileName())));
3348                 return run(DontWait);
3349         }
3350 private:
3351         ///
3352         virtual int generateChild();
3353         ///
3354         Buffer const & buffer_;
3355         FileName fname_;
3356 };
3357
3358
3359 int AutoSaveBuffer::generateChild()
3360 {
3361 #if defined(__APPLE__)
3362         /* FIXME fork() is not usable for autosave on Mac OS X 10.6 (snow leopard)
3363          *   We should use something else like threads.
3364          *
3365          * Since I do not know how to determine at run time what is the OS X
3366          * version, I just disable forking altogether for now (JMarc)
3367          */
3368         pid_t const pid = -1;
3369 #else
3370         // tmp_ret will be located (usually) in /tmp
3371         // will that be a problem?
3372         // Note that this calls ForkedCalls::fork(), so it's
3373         // ok cross-platform.
3374         pid_t const pid = fork();
3375         // If you want to debug the autosave
3376         // you should set pid to -1, and comment out the fork.
3377         if (pid != 0 && pid != -1)
3378                 return pid;
3379 #endif
3380
3381         // pid = -1 signifies that lyx was unable
3382         // to fork. But we will do the save
3383         // anyway.
3384         bool failed = false;
3385         FileName const tmp_ret = FileName::tempName("lyxauto");
3386         if (!tmp_ret.empty()) {
3387                 buffer_.writeFile(tmp_ret);
3388                 // assume successful write of tmp_ret
3389                 if (!tmp_ret.moveTo(fname_))
3390                         failed = true;
3391         } else
3392                 failed = true;
3393
3394         if (failed) {
3395                 // failed to write/rename tmp_ret so try writing direct
3396                 if (!buffer_.writeFile(fname_)) {
3397                         // It is dangerous to do this in the child,
3398                         // but safe in the parent, so...
3399                         if (pid == -1) // emit message signal.
3400                                 buffer_.message(_("Autosave failed!"));
3401                 }
3402         }
3403
3404         if (pid == 0) // we are the child so...
3405                 _exit(0);
3406
3407         return pid;
3408 }
3409
3410 } // namespace anon
3411
3412
3413 FileName Buffer::getEmergencyFileName() const
3414 {
3415         return FileName(d->filename.absFileName() + ".emergency");
3416 }
3417
3418
3419 FileName Buffer::getAutosaveFileName() const
3420 {
3421         // if the document is unnamed try to save in the backup dir, else
3422         // in the default document path, and as a last try in the filePath,
3423         // which will most often be the temporary directory
3424         string fpath;
3425         if (isUnnamed())
3426                 fpath = lyxrc.backupdir_path.empty() ? lyxrc.document_path
3427                         : lyxrc.backupdir_path;
3428         if (!isUnnamed() || fpath.empty() || !FileName(fpath).exists())
3429                 fpath = filePath();
3430
3431         string const fname = "#" + d->filename.onlyFileName() + "#";
3432
3433         return makeAbsPath(fname, fpath);
3434 }
3435
3436
3437 void Buffer::removeAutosaveFile() const
3438 {
3439         FileName const f = getAutosaveFileName();
3440         if (f.exists())
3441                 f.removeFile();
3442 }
3443
3444
3445 void Buffer::moveAutosaveFile(support::FileName const & oldauto) const
3446 {
3447         FileName const newauto = getAutosaveFileName();
3448         oldauto.refresh();
3449         if (newauto != oldauto && oldauto.exists())
3450                 if (!oldauto.moveTo(newauto))
3451                         LYXERR0("Unable to move autosave file `" << oldauto << "'!");
3452 }
3453
3454
3455 bool Buffer::autoSave() const
3456 {
3457         Buffer const * buf = d->cloned_buffer_ ? d->cloned_buffer_ : this;
3458         if (buf->d->bak_clean || isReadonly())
3459                 return true;
3460
3461         message(_("Autosaving current document..."));
3462         buf->d->bak_clean = true;
3463
3464         FileName const fname = getAutosaveFileName();
3465         if (d->cloned_buffer_) {
3466                 // If this buffer is cloned, we assume that
3467                 // we are running in a separate thread already.
3468                 FileName const tmp_ret = FileName::tempName("lyxauto");
3469                 if (!tmp_ret.empty()) {
3470                         writeFile(tmp_ret);
3471                         // assume successful write of tmp_ret
3472                         if (tmp_ret.moveTo(fname))
3473                                 return true;
3474                 }
3475                 // failed to write/rename tmp_ret so try writing direct
3476                 return writeFile(fname);
3477         } else {
3478                 /// This function is deprecated as the frontend needs to take care
3479                 /// of cloning the buffer and autosaving it in another thread. It
3480                 /// is still here to allow (QT_VERSION < 0x040400).
3481                 AutoSaveBuffer autosave(*this, fname);
3482                 autosave.start();
3483                 return true;
3484         }
3485 }
3486
3487
3488 // helper class, to guarantee this gets reset properly
3489 class Buffer::MarkAsExporting {
3490 public:
3491         MarkAsExporting(Buffer const * buf) : buf_(buf)
3492         {
3493                 LASSERT(buf_, /* */);
3494                 buf_->setExportStatus(true);
3495         }
3496         ~MarkAsExporting()
3497         {
3498                 buf_->setExportStatus(false);
3499         }
3500 private:
3501         Buffer const * const buf_;
3502 };
3503
3504
3505
3506 void Buffer::setExportStatus(bool e) const
3507 {
3508         d->doing_export = e;
3509         ListOfBuffers clist = getDescendents();
3510         ListOfBuffers::const_iterator cit = clist.begin();
3511         ListOfBuffers::const_iterator const cen = clist.end();
3512         for (; cit != cen; ++cit)
3513                 (*cit)->d->doing_export = e;
3514 }
3515
3516
3517 bool Buffer::isExporting() const
3518 {
3519         return d->doing_export;
3520 }
3521
3522
3523 Buffer::ExportStatus Buffer::doExport(string const & target, bool put_in_tempdir)
3524         const
3525 {
3526         string result_file;
3527         return doExport(target, put_in_tempdir, result_file);
3528 }
3529
3530 Buffer::ExportStatus Buffer::doExport(string const & target, bool put_in_tempdir,
3531         string & result_file) const
3532 {
3533         bool const update_unincluded =
3534                         params().maintain_unincluded_children
3535                         && !params().getIncludedChildren().empty();
3536
3537         // (1) export with all included children (omit \includeonly)
3538         if (update_unincluded) {
3539                 ExportStatus const status =
3540                         doExport(target, put_in_tempdir, true, result_file);
3541                 if (status != ExportSuccess)
3542                         return status;
3543         }
3544         // (2) export with included children only
3545         return doExport(target, put_in_tempdir, false, result_file);
3546 }
3547
3548
3549 Buffer::ExportStatus Buffer::doExport(string const & target, bool put_in_tempdir,
3550         bool includeall, string & result_file) const
3551 {
3552         LYXERR(Debug::FILES, "target=" << target);
3553         OutputParams runparams(&params().encoding());
3554         string format = target;
3555         string dest_filename;
3556         size_t pos = target.find(' ');
3557         if (pos != string::npos) {
3558                 dest_filename = target.substr(pos + 1, target.length() - pos - 1);
3559                 format = target.substr(0, pos);
3560                 runparams.export_folder = FileName(dest_filename).onlyPath().realPath();
3561                 FileName(dest_filename).onlyPath().createPath();
3562                 LYXERR(Debug::FILES, "format=" << format << ", dest_filename=" << dest_filename << ", export_folder=" << runparams.export_folder);
3563         }
3564         MarkAsExporting exporting(this);
3565         string backend_format;
3566         runparams.flavor = OutputParams::LATEX;
3567         runparams.linelen = lyxrc.plaintext_linelen;
3568         runparams.includeall = includeall;
3569         vector<string> backs = params().backends();
3570         Converters converters = theConverters();
3571         if (find(backs.begin(), backs.end(), format) == backs.end()) {
3572                 // Get shortest path to format
3573                 converters.buildGraph();
3574                 Graph::EdgePath path;
3575                 for (vector<string>::const_iterator it = backs.begin();
3576                      it != backs.end(); ++it) {
3577                         Graph::EdgePath p = converters.getPath(*it, format);
3578                         if (!p.empty() && (path.empty() || p.size() < path.size())) {
3579                                 backend_format = *it;
3580                                 path = p;
3581                         }
3582                 }
3583                 if (path.empty()) {
3584                         if (!put_in_tempdir) {
3585                                 // Only show this alert if this is an export to a non-temporary
3586                                 // file (not for previewing).
3587                                 Alert::error(_("Couldn't export file"), bformat(
3588                                         _("No information for exporting the format %1$s."),
3589                                         formats.prettyName(format)));
3590                         }
3591                         return ExportNoPathToFormat;
3592                 }
3593                 runparams.flavor = converters.getFlavor(path);
3594
3595         } else {
3596                 backend_format = format;
3597                 LYXERR(Debug::FILES, "backend_format=" << backend_format);
3598                 // FIXME: Don't hardcode format names here, but use a flag
3599                 if (backend_format == "pdflatex")
3600                         runparams.flavor = OutputParams::PDFLATEX;
3601                 else if (backend_format == "luatex")
3602                         runparams.flavor = OutputParams::LUATEX;
3603                 else if (backend_format == "dviluatex")
3604                         runparams.flavor = OutputParams::DVILUATEX;
3605                 else if (backend_format == "xetex")
3606                         runparams.flavor = OutputParams::XETEX;
3607         }
3608
3609         string filename = latexName(false);
3610         filename = addName(temppath(), filename);
3611         filename = changeExtension(filename,
3612                                    formats.extension(backend_format));
3613         LYXERR(Debug::FILES, "filename=" << filename);
3614
3615         // Plain text backend
3616         if (backend_format == "text") {
3617                 runparams.flavor = OutputParams::TEXT;
3618                 writePlaintextFile(*this, FileName(filename), runparams);
3619         }
3620         // HTML backend
3621         else if (backend_format == "xhtml") {
3622                 runparams.flavor = OutputParams::HTML;
3623                 switch (params().html_math_output) {
3624                 case BufferParams::MathML:
3625                         runparams.math_flavor = OutputParams::MathAsMathML;
3626                         break;
3627                 case BufferParams::HTML:
3628                         runparams.math_flavor = OutputParams::MathAsHTML;
3629                         break;
3630                 case BufferParams::Images:
3631                         runparams.math_flavor = OutputParams::MathAsImages;
3632                         break;
3633                 case BufferParams::LaTeX:
3634                         runparams.math_flavor = OutputParams::MathAsLaTeX;
3635                         break;
3636                 }
3637                 makeLyXHTMLFile(FileName(filename), runparams);
3638         } else if (backend_format == "lyx")
3639                 writeFile(FileName(filename));
3640         // Docbook backend
3641         else if (params().isDocBook()) {
3642                 runparams.nice = !put_in_tempdir;
3643                 makeDocBookFile(FileName(filename), runparams);
3644         }
3645         // LaTeX backend
3646         else if (backend_format == format) {
3647                 runparams.nice = true;
3648                 if (!makeLaTeXFile(FileName(filename), string(), runparams)) {
3649                         if (d->cloned_buffer_) {
3650                                 d->cloned_buffer_->d->errorLists["Export"] =
3651                                         d->errorLists["Export"];
3652                         }
3653                         return ExportError;
3654                 }
3655         } else if (!lyxrc.tex_allows_spaces
3656                    && contains(filePath(), ' ')) {
3657                 Alert::error(_("File name error"),
3658                            _("The directory path to the document cannot contain spaces."));
3659                 return ExportTexPathHasSpaces;
3660         } else {
3661                 runparams.nice = false;
3662                 if (!makeLaTeXFile(FileName(filename), filePath(), runparams)) {
3663                         if (d->cloned_buffer_) {
3664                                 d->cloned_buffer_->d->errorLists["Export"] =
3665                                         d->errorLists["Export"];
3666                         }
3667                         return ExportError;
3668                 }
3669         }
3670
3671         string const error_type = (format == "program")
3672                 ? "Build" : params().bufferFormat();
3673         ErrorList & error_list = d->errorLists[error_type];
3674         string const ext = formats.extension(format);
3675         FileName const tmp_result_file(changeExtension(filename, ext));
3676         bool const success = converters.convert(this, FileName(filename),
3677                 tmp_result_file, FileName(absFileName()), backend_format, format,
3678                 error_list);
3679
3680         // Emit the signal to show the error list or copy it back to the
3681         // cloned Buffer so that it can be emitted afterwards.
3682         if (format != backend_format) {
3683                 if (d->cloned_buffer_) {
3684                         d->cloned_buffer_->d->errorLists[error_type] =
3685                                 d->errorLists[error_type];
3686                 } else
3687                         errors(error_type);
3688                 // also to the children, in case of master-buffer-view
3689                 ListOfBuffers clist = getDescendents();
3690                 ListOfBuffers::const_iterator cit = clist.begin();
3691                 ListOfBuffers::const_iterator const cen = clist.end();
3692                 for (; cit != cen; ++cit) {
3693                         if (d->cloned_buffer_) {
3694                                 // Enable reverse search by copying back the
3695                                 // texrow object to the cloned buffer.
3696                                 // FIXME: this is not thread safe.
3697                                 (*cit)->d->cloned_buffer_->d->texrow = (*cit)->d->texrow;
3698                                 (*cit)->d->cloned_buffer_->d->errorLists[error_type] =
3699                                         (*cit)->d->errorLists[error_type];
3700                         } else
3701                                 (*cit)->errors(error_type, true);
3702                 }
3703         }
3704
3705         if (d->cloned_buffer_) {
3706                 // Enable reverse dvi or pdf to work by copying back the texrow
3707                 // object to the cloned buffer.
3708                 // FIXME: There is a possibility of concurrent access to texrow
3709                 // here from the main GUI thread that should be securized.
3710                 d->cloned_buffer_->d->texrow = d->texrow;
3711                 string const error_type = params().bufferFormat();
3712                 d->cloned_buffer_->d->errorLists[error_type] = d->errorLists[error_type];
3713         }
3714
3715         if (!success)
3716                 return ExportConverterError;
3717
3718         if (put_in_tempdir) {
3719                 result_file = tmp_result_file.absFileName();
3720                 return ExportSuccess;
3721         }
3722
3723         if (dest_filename.empty())
3724                 result_file = changeExtension(d->exportFileName().absFileName(), ext);
3725         else
3726                 result_file = dest_filename;
3727         // We need to copy referenced files (e. g. included graphics
3728         // if format == "dvi") to the result dir.
3729         vector<ExportedFile> const files =
3730                 runparams.exportdata->externalFiles(format);
3731         string const dest = runparams.export_folder.empty() ?
3732                 onlyPath(result_file) : runparams.export_folder;
3733         bool use_force = use_gui ? lyxrc.export_overwrite == ALL_FILES
3734                                  : force_overwrite == ALL_FILES;
3735         CopyStatus status = use_force ? FORCE : SUCCESS;
3736
3737         vector<ExportedFile>::const_iterator it = files.begin();
3738         vector<ExportedFile>::const_iterator const en = files.end();
3739         for (; it != en && status != CANCEL; ++it) {
3740                 string const fmt = formats.getFormatFromFile(it->sourceName);
3741                 string fixedName = it->exportName;
3742                 if (!runparams.export_folder.empty()) {
3743                         // Relative pathnames starting with ../ will be sanitized
3744                         // if exporting to a different folder
3745                         while (fixedName.substr(0, 3) == "../")
3746                                 fixedName = fixedName.substr(3, fixedName.length() - 3);
3747                 }
3748                 FileName fixedFileName = makeAbsPath(fixedName, dest);
3749                 fixedFileName.onlyPath().createPath();
3750                 status = copyFile(fmt, it->sourceName,
3751                         fixedFileName,
3752                         it->exportName, status == FORCE,
3753                         runparams.export_folder.empty());
3754         }
3755
3756         if (status == CANCEL) {
3757                 message(_("Document export cancelled."));
3758                 return ExportCancel;
3759         }
3760
3761         if (tmp_result_file.exists()) {
3762                 // Finally copy the main file
3763                 use_force = use_gui ? lyxrc.export_overwrite != NO_FILES
3764                                     : force_overwrite != NO_FILES;
3765                 if (status == SUCCESS && use_force)
3766                         status = FORCE;
3767                 status = copyFile(format, tmp_result_file,
3768                         FileName(result_file), result_file,
3769                         status == FORCE);
3770                 if (status == CANCEL) {
3771                         message(_("Document export cancelled."));
3772                         return ExportCancel;
3773                 } else {
3774                         message(bformat(_("Document exported as %1$s "
3775                                 "to file `%2$s'"),
3776                                 formats.prettyName(format),
3777                                 makeDisplayPath(result_file)));
3778                 }
3779         } else {
3780                 // This must be a dummy converter like fax (bug 1888)
3781                 message(bformat(_("Document exported as %1$s"),
3782                         formats.prettyName(format)));
3783         }
3784
3785         return ExportSuccess;
3786 }
3787
3788
3789 Buffer::ExportStatus Buffer::preview(string const & format) const
3790 {
3791         bool const update_unincluded =
3792                         params().maintain_unincluded_children
3793                         && !params().getIncludedChildren().empty();
3794         return preview(format, update_unincluded);
3795 }
3796
3797 Buffer::ExportStatus Buffer::preview(string const & format, bool includeall) const
3798 {
3799         MarkAsExporting exporting(this);
3800         string result_file;
3801         // (1) export with all included children (omit \includeonly)
3802         if (includeall) {
3803                 ExportStatus const status = doExport(format, true, true, result_file);
3804                 if (status != ExportSuccess)
3805                         return status;
3806         }
3807         // (2) export with included children only
3808         ExportStatus const status = doExport(format, true, false, result_file);
3809         if (status != ExportSuccess)
3810                 return status;
3811         if (!formats.view(*this, FileName(result_file), format))
3812                 return PreviewError;
3813         return PreviewSuccess;
3814 }
3815
3816
3817 Buffer::ReadStatus Buffer::extractFromVC()
3818 {
3819         bool const found = LyXVC::file_not_found_hook(d->filename);
3820         if (!found)
3821                 return ReadFileNotFound;
3822         if (!d->filename.isReadableFile())
3823                 return ReadVCError;
3824         return ReadSuccess;
3825 }
3826
3827
3828 Buffer::ReadStatus Buffer::loadEmergency()
3829 {
3830         FileName const emergencyFile = getEmergencyFileName();
3831         if (!emergencyFile.exists()
3832                   || emergencyFile.lastModified() <= d->filename.lastModified())
3833                 return ReadFileNotFound;
3834
3835         docstring const file = makeDisplayPath(d->filename.absFileName(), 20);
3836         docstring const text = bformat(_("An emergency save of the document "
3837                 "%1$s exists.\n\nRecover emergency save?"), file);
3838
3839         int const load_emerg = Alert::prompt(_("Load emergency save?"), text,
3840                 0, 2, _("&Recover"), _("&Load Original"), _("&Cancel"));
3841
3842         switch (load_emerg)
3843         {
3844         case 0: {
3845                 docstring str;
3846                 ReadStatus const ret_llf = loadThisLyXFile(emergencyFile);
3847                 bool const success = (ret_llf == ReadSuccess);
3848                 if (success) {
3849                         if (isReadonly()) {
3850                                 Alert::warning(_("File is read-only"),
3851                                         bformat(_("An emergency file is successfully loaded, "
3852                                         "but the original file %1$s is marked read-only. "
3853                                         "Please make sure to save the document as a different "
3854                                         "file."), from_utf8(d->filename.absFileName())));
3855                         }
3856                         markDirty();
3857                         str = _("Document was successfully recovered.");
3858                 } else
3859                         str = _("Document was NOT successfully recovered.");
3860                 str += "\n\n" + bformat(_("Remove emergency file now?\n(%1$s)"),
3861                         makeDisplayPath(emergencyFile.absFileName()));
3862
3863                 int const del_emerg =
3864                         Alert::prompt(_("Delete emergency file?"), str, 1, 1,
3865                                 _("&Remove"), _("&Keep"));
3866                 if (del_emerg == 0) {
3867                         emergencyFile.removeFile();
3868                         if (success)
3869                                 Alert::warning(_("Emergency file deleted"),
3870                                         _("Do not forget to save your file now!"), true);
3871                         }
3872                 return success ? ReadSuccess : ReadEmergencyFailure;
3873         }
3874         case 1: {
3875                 int const del_emerg =
3876                         Alert::prompt(_("Delete emergency file?"),
3877                                 _("Remove emergency file now?"), 1, 1,
3878                                 _("&Remove"), _("&Keep"));
3879                 if (del_emerg == 0)
3880                         emergencyFile.removeFile();
3881                 return ReadOriginal;
3882         }
3883
3884         default:
3885                 break;
3886         }
3887         return ReadCancel;
3888 }
3889
3890
3891 Buffer::ReadStatus Buffer::loadAutosave()
3892 {
3893         // Now check if autosave file is newer.
3894         FileName const autosaveFile = getAutosaveFileName();
3895         if (!autosaveFile.exists()
3896                   || autosaveFile.lastModified() <= d->filename.lastModified())
3897                 return ReadFileNotFound;
3898
3899         docstring const file = makeDisplayPath(d->filename.absFileName(), 20);
3900         docstring const text = bformat(_("The backup of the document %1$s "
3901                 "is newer.\n\nLoad the backup instead?"), file);
3902         int const ret = Alert::prompt(_("Load backup?"), text, 0, 2,
3903                 _("&Load backup"), _("Load &original"), _("&Cancel"));
3904
3905         switch (ret)
3906         {
3907         case 0: {
3908                 ReadStatus const ret_llf = loadThisLyXFile(autosaveFile);
3909                 // the file is not saved if we load the autosave file.
3910                 if (ret_llf == ReadSuccess) {
3911                         if (isReadonly()) {
3912                                 Alert::warning(_("File is read-only"),
3913                                         bformat(_("A backup file is successfully loaded, "
3914                                         "but the original file %1$s is marked read-only. "
3915                                         "Please make sure to save the document as a "
3916                                         "different file."),
3917                                         from_utf8(d->filename.absFileName())));
3918                         }
3919                         markDirty();
3920                         return ReadSuccess;
3921                 }
3922                 return ReadAutosaveFailure;
3923         }
3924         case 1:
3925                 // Here we delete the autosave
3926                 autosaveFile.removeFile();
3927                 return ReadOriginal;
3928         default:
3929                 break;
3930         }
3931         return ReadCancel;
3932 }
3933
3934
3935 Buffer::ReadStatus Buffer::loadLyXFile()
3936 {
3937         if (!d->filename.isReadableFile()) {
3938                 ReadStatus const ret_rvc = extractFromVC();
3939                 if (ret_rvc != ReadSuccess)
3940                         return ret_rvc;
3941         }
3942
3943         ReadStatus const ret_re = loadEmergency();
3944         if (ret_re == ReadSuccess || ret_re == ReadCancel)
3945                 return ret_re;
3946
3947         ReadStatus const ret_ra = loadAutosave();
3948         if (ret_ra == ReadSuccess || ret_ra == ReadCancel)
3949                 return ret_ra;
3950
3951         return loadThisLyXFile(d->filename);
3952 }
3953
3954
3955 Buffer::ReadStatus Buffer::loadThisLyXFile(FileName const & fn)
3956 {
3957         return readFile(fn);
3958 }
3959
3960
3961 void Buffer::bufferErrors(TeXErrors const & terr, ErrorList & errorList) const
3962 {
3963         TeXErrors::Errors::const_iterator it = terr.begin();
3964         TeXErrors::Errors::const_iterator end = terr.end();
3965         ListOfBuffers clist = getDescendents();
3966         ListOfBuffers::const_iterator cen = clist.end();
3967
3968         for (; it != end; ++it) {
3969                 int id_start = -1;
3970                 int pos_start = -1;
3971                 int errorRow = it->error_in_line;
3972                 Buffer const * buf = 0;
3973                 Impl const * p = d;
3974                 if (it->child_name.empty())
3975                     p->texrow.getIdFromRow(errorRow, id_start, pos_start);
3976                 else {
3977                         // The error occurred in a child
3978                         ListOfBuffers::const_iterator cit = clist.begin();
3979                         for (; cit != cen; ++cit) {
3980                                 string const child_name =
3981                                         DocFileName(changeExtension(
3982                                                 (*cit)->absFileName(), "tex")).
3983                                                         mangledFileName();
3984                                 if (it->child_name != child_name)
3985                                         continue;
3986                                 (*cit)->d->texrow.getIdFromRow(errorRow,
3987                                                         id_start, pos_start);
3988                                 if (id_start != -1) {
3989                                         buf = d->cloned_buffer_
3990                                                 ? (*cit)->d->cloned_buffer_->d->owner_
3991                                                 : (*cit)->d->owner_;
3992                                         p = (*cit)->d;
3993                                         break;
3994                                 }
3995                         }
3996                 }
3997                 int id_end = -1;
3998                 int pos_end = -1;
3999                 bool found;
4000                 do {
4001                         ++errorRow;
4002                         found = p->texrow.getIdFromRow(errorRow, id_end, pos_end);
4003                 } while (found && id_start == id_end && pos_start == pos_end);
4004
4005                 if (id_start != id_end) {
4006                         // Next registered position is outside the inset where
4007                         // the error occurred, so signal end-of-paragraph
4008                         pos_end = 0;
4009                 }
4010
4011                 errorList.push_back(ErrorItem(it->error_desc,
4012                         it->error_text, id_start, pos_start, pos_end, buf));
4013         }
4014 }
4015
4016
4017 void Buffer::setBuffersForInsets() const
4018 {
4019         inset().setBuffer(const_cast<Buffer &>(*this));
4020 }
4021
4022
4023 void Buffer::updateBuffer(UpdateScope scope, UpdateType utype) const
4024 {
4025         // Use the master text class also for child documents
4026         Buffer const * const master = masterBuffer();
4027         DocumentClass const & textclass = master->params().documentClass();
4028
4029         // do this only if we are the top-level Buffer
4030         if (master == this)
4031                 reloadBibInfoCache();
4032
4033         // keep the buffers to be children in this set. If the call from the
4034         // master comes back we can see which of them were actually seen (i.e.
4035         // via an InsetInclude). The remaining ones in the set need still be updated.
4036         static std::set<Buffer const *> bufToUpdate;
4037         if (scope == UpdateMaster) {
4038                 // If this is a child document start with the master
4039                 if (master != this) {
4040                         bufToUpdate.insert(this);
4041                         master->updateBuffer(UpdateMaster, utype);
4042                         // Do this here in case the master has no gui associated with it. Then,
4043                         // the TocModel is not updated and TocModel::toc_ is invalid (bug 5699).
4044                         if (!master->d->gui_)
4045                                 structureChanged();
4046
4047                         // was buf referenced from the master (i.e. not in bufToUpdate anymore)?
4048                         if (bufToUpdate.find(this) == bufToUpdate.end())
4049                                 return;
4050                 }
4051
4052                 // start over the counters in the master
4053                 textclass.counters().reset();
4054         }
4055
4056         // update will be done below for this buffer
4057         bufToUpdate.erase(this);
4058
4059         // update all caches
4060         clearReferenceCache();
4061         updateMacros();
4062
4063         Buffer & cbuf = const_cast<Buffer &>(*this);
4064
4065         LASSERT(!text().paragraphs().empty(), /**/);
4066
4067         // do the real work
4068         ParIterator parit = cbuf.par_iterator_begin();
4069         updateBuffer(parit, utype);
4070
4071         if (master != this)
4072                 // TocBackend update will be done later.
4073                 return;
4074
4075         d->bibinfo_cache_valid_ = true;
4076         d->cite_labels_valid_ = true;
4077         cbuf.tocBackend().update();
4078         if (scope == UpdateMaster)
4079                 cbuf.structureChanged();
4080 }
4081
4082
4083 static depth_type getDepth(DocIterator const & it)
4084 {
4085         depth_type depth = 0;
4086         for (size_t i = 0 ; i < it.depth() ; ++i)
4087                 if (!it[i].inset().inMathed())
4088                         depth += it[i].paragraph().getDepth() + 1;
4089         // remove 1 since the outer inset does not count
4090         return depth - 1;
4091 }
4092
4093 static depth_type getItemDepth(ParIterator const & it)
4094 {
4095         Paragraph const & par = *it;
4096         LabelType const labeltype = par.layout().labeltype;
4097
4098         if (labeltype != LABEL_ENUMERATE && labeltype != LABEL_ITEMIZE)
4099                 return 0;
4100
4101         // this will hold the lowest depth encountered up to now.
4102         depth_type min_depth = getDepth(it);
4103         ParIterator prev_it = it;
4104         while (true) {
4105                 if (prev_it.pit())
4106                         --prev_it.top().pit();
4107                 else {
4108                         // start of nested inset: go to outer par
4109                         prev_it.pop_back();
4110                         if (prev_it.empty()) {
4111                                 // start of document: nothing to do
4112                                 return 0;
4113                         }
4114                 }
4115
4116                 // We search for the first paragraph with same label
4117                 // that is not more deeply nested.
4118                 Paragraph & prev_par = *prev_it;
4119                 depth_type const prev_depth = getDepth(prev_it);
4120                 if (labeltype == prev_par.layout().labeltype) {
4121                         if (prev_depth < min_depth)
4122                                 return prev_par.itemdepth + 1;
4123                         if (prev_depth == min_depth)
4124                                 return prev_par.itemdepth;
4125                 }
4126                 min_depth = min(min_depth, prev_depth);
4127                 // small optimization: if we are at depth 0, we won't
4128                 // find anything else
4129                 if (prev_depth == 0)
4130                         return 0;
4131         }
4132 }
4133
4134
4135 static bool needEnumCounterReset(ParIterator const & it)
4136 {
4137         Paragraph const & par = *it;
4138         LASSERT(par.layout().labeltype == LABEL_ENUMERATE, /**/);
4139         depth_type const cur_depth = par.getDepth();
4140         ParIterator prev_it = it;
4141         while (prev_it.pit()) {
4142                 --prev_it.top().pit();
4143                 Paragraph const & prev_par = *prev_it;
4144                 if (prev_par.getDepth() <= cur_depth)
4145                         return  prev_par.layout().labeltype != LABEL_ENUMERATE;
4146         }
4147         // start of nested inset: reset
4148         return true;
4149 }
4150
4151
4152 // set the label of a paragraph. This includes the counters.
4153 void Buffer::Impl::setLabel(ParIterator & it, UpdateType utype) const
4154 {
4155         BufferParams const & bp = owner_->masterBuffer()->params();
4156         DocumentClass const & textclass = bp.documentClass();
4157         Paragraph & par = it.paragraph();
4158         Layout const & layout = par.layout();
4159         Counters & counters = textclass.counters();
4160
4161         if (par.params().startOfAppendix()) {
4162                 // FIXME: only the counter corresponding to toplevel
4163                 // sectioning should be reset
4164                 counters.reset();
4165                 counters.appendix(true);
4166         }
4167         par.params().appendix(counters.appendix());
4168
4169         // Compute the item depth of the paragraph
4170         par.itemdepth = getItemDepth(it);
4171
4172         if (layout.margintype == MARGIN_MANUAL) {
4173                 if (par.params().labelWidthString().empty())
4174                         par.params().labelWidthString(par.expandLabel(layout, bp));
4175         } else if (layout.latextype == LATEX_BIB_ENVIRONMENT) {
4176                 // we do not need to do anything here, since the empty case is
4177                 // handled during export.
4178         } else {
4179                 par.params().labelWidthString(docstring());
4180         }
4181
4182         switch(layout.labeltype) {
4183         case LABEL_COUNTER:
4184                 if (layout.toclevel <= bp.secnumdepth
4185                       && (layout.latextype != LATEX_ENVIRONMENT
4186                           || it.text()->isFirstInSequence(it.pit()))) {
4187                         if (counters.hasCounter(layout.counter))
4188                                 counters.step(layout.counter, utype);
4189                         par.params().labelString(par.expandLabel(layout, bp));
4190                 } else
4191                         par.params().labelString(docstring());
4192                 break;
4193
4194         case LABEL_ITEMIZE: {
4195                 // At some point of time we should do something more
4196                 // clever here, like:
4197                 //   par.params().labelString(
4198                 //    bp.user_defined_bullet(par.itemdepth).getText());
4199                 // for now, use a simple hardcoded label
4200                 docstring itemlabel;
4201                 switch (par.itemdepth) {
4202                 case 0:
4203                         itemlabel = char_type(0x2022);
4204                         break;
4205                 case 1:
4206                         itemlabel = char_type(0x2013);
4207                         break;
4208                 case 2:
4209                         itemlabel = char_type(0x2217);
4210                         break;
4211                 case 3:
4212                         itemlabel = char_type(0x2219); // or 0x00b7
4213                         break;
4214                 }
4215                 par.params().labelString(itemlabel);
4216                 break;
4217         }
4218
4219         case LABEL_ENUMERATE: {
4220                 docstring enumcounter = layout.counter.empty() ? from_ascii("enum") : layout.counter;
4221
4222                 switch (par.itemdepth) {
4223                 case 2:
4224                         enumcounter += 'i';
4225                 case 1:
4226                         enumcounter += 'i';
4227                 case 0:
4228                         enumcounter += 'i';
4229                         break;
4230                 case 3:
4231                         enumcounter += "iv";
4232                         break;
4233                 default:
4234                         // not a valid enumdepth...
4235                         break;
4236                 }
4237
4238                 // Maybe we have to reset the enumeration counter.
4239                 if (needEnumCounterReset(it))
4240                         counters.reset(enumcounter);
4241                 counters.step(enumcounter, utype);
4242
4243                 string const & lang = par.getParLanguage(bp)->code();
4244                 par.params().labelString(counters.theCounter(enumcounter, lang));
4245
4246                 break;
4247         }
4248
4249         case LABEL_SENSITIVE: {
4250                 string const & type = counters.current_float();
4251                 docstring full_label;
4252                 if (type.empty())
4253                         full_label = owner_->B_("Senseless!!! ");
4254                 else {
4255                         docstring name = owner_->B_(textclass.floats().getType(type).name());
4256                         if (counters.hasCounter(from_utf8(type))) {
4257                                 string const & lang = par.getParLanguage(bp)->code();
4258                                 counters.step(from_utf8(type), utype);
4259                                 full_label = bformat(from_ascii("%1$s %2$s:"),
4260                                                      name,
4261                                                      counters.theCounter(from_utf8(type), lang));
4262                         } else
4263                                 full_label = bformat(from_ascii("%1$s #:"), name);
4264                 }
4265                 par.params().labelString(full_label);
4266                 break;
4267         }
4268
4269         case LABEL_NO_LABEL:
4270                 par.params().labelString(docstring());
4271                 break;
4272
4273         case LABEL_MANUAL:
4274         case LABEL_TOP_ENVIRONMENT:
4275         case LABEL_CENTERED_TOP_ENVIRONMENT:
4276         case LABEL_STATIC:
4277         case LABEL_BIBLIO:
4278                 par.params().labelString(par.expandLabel(layout, bp));
4279                 break;
4280         }
4281 }
4282
4283
4284 void Buffer::updateBuffer(ParIterator & parit, UpdateType utype) const
4285 {
4286         LASSERT(parit.pit() == 0, /**/);
4287
4288         // Set the position of the text in the buffer to be able
4289         // to resolve macros in it.
4290         parit.text()->setMacrocontextPosition(parit);
4291
4292         depth_type maxdepth = 0;
4293         pit_type const lastpit = parit.lastpit();
4294         for ( ; parit.pit() <= lastpit ; ++parit.pit()) {
4295                 // reduce depth if necessary
4296                 parit->params().depth(min(parit->params().depth(), maxdepth));
4297                 maxdepth = parit->getMaxDepthAfter();
4298
4299                 if (utype == OutputUpdate) {
4300                         // track the active counters
4301                         // we have to do this for the master buffer, since the local
4302                         // buffer isn't tracking anything.
4303                         masterBuffer()->params().documentClass().counters().
4304                                         setActiveLayout(parit->layout());
4305                 }
4306
4307                 // set the counter for this paragraph
4308                 d->setLabel(parit, utype);
4309
4310                 // now the insets
4311                 InsetList::const_iterator iit = parit->insetList().begin();
4312                 InsetList::const_iterator end = parit->insetList().end();
4313                 for (; iit != end; ++iit) {
4314                         parit.pos() = iit->pos;
4315                         iit->inset->updateBuffer(parit, utype);
4316                 }
4317         }
4318 }
4319
4320
4321 int Buffer::spellCheck(DocIterator & from, DocIterator & to,
4322         WordLangTuple & word_lang, docstring_list & suggestions) const
4323 {
4324         int progress = 0;
4325         WordLangTuple wl;
4326         suggestions.clear();
4327         word_lang = WordLangTuple();
4328         bool const to_end = to.empty();
4329         DocIterator const end = to_end ? doc_iterator_end(this) : to;
4330         // OK, we start from here.
4331         for (; from != end; from.forwardPos()) {
4332                 // We are only interested in text so remove the math CursorSlice.
4333                 while (from.inMathed()) {
4334                         from.pop_back();
4335                         from.pos()++;
4336                 }
4337                 // If from is at the end of the document (which is possible
4338                 // when leaving the mathed) LyX will crash later otherwise.
4339                 if (from.atEnd() || (!to_end && from >= end))
4340                         break;
4341                 to = from;
4342                 from.paragraph().spellCheck();
4343                 SpellChecker::Result res = from.paragraph().spellCheck(from.pos(), to.pos(), wl, suggestions);
4344                 if (SpellChecker::misspelled(res)) {
4345                         word_lang = wl;
4346                         break;
4347                 }
4348
4349                 // Do not increase progress when from == to, otherwise the word
4350                 // count will be wrong.
4351                 if (from != to) {
4352                         from = to;
4353                         ++progress;
4354                 }
4355         }
4356         return progress;
4357 }
4358
4359
4360 Buffer::ReadStatus Buffer::reload()
4361 {
4362         setBusy(true);
4363         // c.f. bug http://www.lyx.org/trac/ticket/6587
4364         removeAutosaveFile();
4365         // e.g., read-only status could have changed due to version control
4366         d->filename.refresh();
4367         docstring const disp_fn = makeDisplayPath(d->filename.absFileName());
4368
4369         ReadStatus const status = loadLyXFile();
4370         if (status == ReadSuccess) {
4371                 updateBuffer();
4372                 changed(true);
4373                 updateTitles();
4374                 markClean();
4375                 message(bformat(_("Document %1$s reloaded."), disp_fn));
4376                 d->undo_.clear();
4377         } else {
4378                 message(bformat(_("Could not reload document %1$s."), disp_fn));
4379         }
4380         setBusy(false);
4381         removePreviews();
4382         updatePreviews();
4383         errors("Parse");
4384         return status;
4385 }
4386
4387
4388 bool Buffer::saveAs(FileName const & fn)
4389 {
4390         FileName const old_name = fileName();
4391         FileName const old_auto = getAutosaveFileName();
4392         bool const old_unnamed = isUnnamed();
4393
4394         setFileName(fn);
4395         markDirty();
4396         setUnnamed(false);
4397
4398         if (save()) {
4399                 // bring the autosave file with us, just in case.
4400                 moveAutosaveFile(old_auto);
4401                 // validate version control data and
4402                 // correct buffer title
4403                 lyxvc().file_found_hook(fileName());
4404                 updateTitles();
4405                 // the file has now been saved to the new location.
4406                 // we need to check that the locations of child buffers
4407                 // are still valid.
4408                 checkChildBuffers();
4409                 return true;
4410         } else {
4411                 // save failed
4412                 // reset the old filename and unnamed state
4413                 setFileName(old_name);
4414                 setUnnamed(old_unnamed);
4415                 return false;
4416         }
4417 }
4418
4419
4420 // FIXME We could do better here, but it is complicated. What would be
4421 // nice is to offer either (a) to save the child buffer to an appropriate
4422 // location, so that it would "move with the master", or else (b) to update
4423 // the InsetInclude so that it pointed to the same file. But (a) is a bit
4424 // complicated, because the code for this lives in GuiView.
4425 void Buffer::checkChildBuffers()
4426 {
4427         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
4428         Impl::BufferPositionMap::iterator const en = d->children_positions.end();
4429         for (; it != en; ++it) {
4430                 DocIterator dit = it->second;
4431                 Buffer * cbuf = const_cast<Buffer *>(it->first);
4432                 if (!cbuf || !theBufferList().isLoaded(cbuf))
4433                         continue;
4434                 Inset * inset = dit.nextInset();
4435                 LASSERT(inset && inset->lyxCode() == INCLUDE_CODE, continue);
4436                 InsetInclude * inset_inc = static_cast<InsetInclude *>(inset);
4437                 docstring const & incfile = inset_inc->getParam("filename");
4438                 string oldloc = cbuf->absFileName();
4439                 string newloc = makeAbsPath(to_utf8(incfile),
4440                                 onlyPath(absFileName())).absFileName();
4441                 if (oldloc == newloc)
4442                         continue;
4443                 // the location of the child file is incorrect.
4444                 Alert::warning(_("Included File Invalid"),
4445                                 bformat(_("Saving this document to a new location has made the file:\n"
4446                                 "  %1$s\n"
4447                                 "inaccessible. You will need to update the included filename."),
4448                                 from_utf8(oldloc)));
4449                 cbuf->setParent(0);
4450                 inset_inc->setChildBuffer(0);
4451         }
4452         // invalidate cache of children
4453         d->children_positions.clear();
4454         d->position_to_children.clear();
4455 }
4456
4457 } // namespace lyx