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 // Do not remove the comment below, so we get merge conflict in
 130 // independent branches. Instead add your own.
 131 int const LYX_FORMAT = 413; // rgh: html_css_as_file
 132
 133 typedef map<string, bool> DepClean;
 134 typedef map<docstring, pair<InsetLabel const *, Buffer::References> > RefCache;
 135
 136 void showPrintError(string const & name)
 137 {
 138         docstring str = bformat(_("Could not print the document %1$s.\n"
 139                                             "Check that your printer is set up correctly."),
 140                              makeDisplayPath(name, 50));
 141         Alert::error(_("Print document failed"), str);
 142 }
 143
 144 } // namespace anon
 145
 146
 147 class Buffer::Impl
 148 {
 149 public:
 150         Impl(Buffer * owner, FileName const & file, bool readonly, Buffer const * cloned_buffer);
 151
 152         ~Impl()
 153         {
 154                 delete preview_loader_;
 155                 if (wa_) {
 156                         wa_->closeAll();
 157                         delete wa_;
 158                 }
 159                 delete inset;
 160         }
 161
 162         /// search for macro in local (buffer) table or in children
 163         MacroData const * getBufferMacro(docstring const & name,
 164                 DocIterator const & pos) const;
 165
 166         /// Update macro table starting with position of it \param it in some
 167         /// text inset.
 168         void updateMacros(DocIterator & it, DocIterator & scope);
 169         ///
 170         void setLabel(ParIterator & it, UpdateType utype) const;
 171
 172         /** If we have branches that use the file suffix
 173             feature, return the file name with suffix appended.
 174         */
 175         support::FileName exportFileName() const;
 176
 177         Buffer * owner_;
 178
 179         BufferParams params;
 180         LyXVC lyxvc;
 181         FileName temppath;
 182         mutable TexRow texrow;
 183
 184         /// need to regenerate .tex?
 185         DepClean dep_clean;
 186
 187         /// is save needed?
 188         mutable bool lyx_clean;
 189
 190         /// is autosave needed?
 191         mutable bool bak_clean;
 192
 193         /// is this an unnamed file (New...)?
 194         bool unnamed;
 195
 196         /// buffer is r/o
 197         bool read_only;
 198
 199         /// name of the file the buffer is associated with.
 200         FileName filename;
 201
 202         /** Set to true only when the file is fully loaded.
 203          *  Used to prevent the premature generation of previews
 204          *  and by the citation inset.
 205          */
 206         bool file_fully_loaded;
 207
 208         ///
 209         mutable TocBackend toc_backend;
 210
 211         /// macro tables
 212         typedef pair<DocIterator, MacroData> ScopeMacro;
 213         typedef map<DocIterator, ScopeMacro> PositionScopeMacroMap;
 214         typedef map<docstring, PositionScopeMacroMap> NamePositionScopeMacroMap;
 215         /// map from the macro name to the position map,
 216         /// which maps the macro definition position to the scope and the MacroData.
 217         NamePositionScopeMacroMap macros;
 218         /// This seem to change the way Buffer::getMacro() works
 219         mutable bool macro_lock;
 220
 221         /// positions of child buffers in the buffer
 222         typedef map<Buffer const * const, DocIterator> BufferPositionMap;
 223         typedef pair<DocIterator, Buffer const *> ScopeBuffer;
 224         typedef map<DocIterator, ScopeBuffer> PositionScopeBufferMap;
 225         /// position of children buffers in this buffer
 226         BufferPositionMap children_positions;
 227         /// map from children inclusion positions to their scope and their buffer
 228         PositionScopeBufferMap position_to_children;
 229
 230         /// Container for all sort of Buffer dependant errors.
 231         map<string, ErrorList> errorLists;
 232
 233         /// timestamp and checksum used to test if the file has been externally
 234         /// modified. (Used to properly enable 'File->Revert to saved', bug 4114).
 235         time_t timestamp_;
 236         unsigned long checksum_;
 237
 238         ///
 239         frontend::WorkAreaManager * wa_;
 240         ///
 241         frontend::GuiBufferDelegate * gui_;
 242
 243         ///
 244         Undo undo_;
 245
 246         /// A cache for the bibfiles (including bibfiles of loaded child
 247         /// documents), needed for appropriate update of natbib labels.
 248         mutable support::FileNameList bibfiles_cache_;
 249
 250         // FIXME The caching mechanism could be improved. At present, we have a
 251         // cache for each Buffer, that caches all the bibliography info for that
 252         // Buffer. A more efficient solution would be to have a global cache per
 253         // file, and then to construct the Buffer's bibinfo from that.
 254         /// A cache for bibliography info
 255         mutable BiblioInfo bibinfo_;
 256         /// whether the bibinfo cache is valid
 257         mutable bool bibinfo_cache_valid_;
 258         /// whether the bibfile cache is valid
 259         mutable bool bibfile_cache_valid_;
 260         /// Cache of timestamps of .bib files
 261         map<FileName, time_t> bibfile_status_;
 262         /// Indicates whether the bibinfo has changed since the last time
 263         /// we ran updateBuffer(), i.e., whether citation labels may need
 264         /// to be updated.
 265         mutable bool cite_labels_valid_;
 266
 267         mutable RefCache ref_cache_;
 268
 269         /// our Text that should be wrapped in an InsetText
 270         InsetText * inset;
 271
 272         ///
 273         PreviewLoader * preview_loader_;
 274
 275         /// This is here to force the test to be done whenever parent_buffer
 276         /// is accessed.
 277         Buffer const * parent() const {
 278                 // if parent_buffer is not loaded, then it has been unloaded,
 279                 // which means that parent_buffer is an invalid pointer. So we
 280                 // set it to null in that case.
 281                 // however, the BufferList doesn't know about cloned buffers, so
 282                 // they will always be regarded as unloaded. in that case, we hope
 283                 // for the best.
 284                 if (!cloned_buffer_ && !theBufferList().isLoaded(parent_buffer))
 285                         parent_buffer = 0;
 286                 return parent_buffer;
 287         }
 288
 289         ///
 290         void setParent(Buffer const * pb) {
 291                 if (parent_buffer == pb)
 292                         // nothing to do
 293                         return;
 294                 if (!cloned_buffer_ && parent_buffer && pb)
 295                         LYXERR0("Warning: a buffer should not have two parents!");
 296                 parent_buffer = pb;
 297                 if (!cloned_buffer_ && parent_buffer) {
 298                         parent_buffer->invalidateBibfileCache();
 299                         parent_buffer->invalidateBibinfoCache();
 300                 }
 301         }
 302
 303         /// If non zero, this buffer is a clone of existing buffer \p cloned_buffer_
 304         /// This one is useful for preview detached in a thread.
 305         Buffer const * cloned_buffer_;
 306         /// are we in the process of exporting this buffer?
 307         mutable bool doing_export;
 308
 309 private:
 310         /// So we can force access via the accessors.
 311         mutable Buffer const * parent_buffer;
 312
 313 };
 314
 315
 316 /// Creates the per buffer temporary directory
 317 static FileName createBufferTmpDir()
 318 {
 319         static int count;
 320         // We are in our own directory.  Why bother to mangle name?
 321         // In fact I wrote this code to circumvent a problematic behaviour
 322         // (bug?) of EMX mkstemp().
 323         FileName tmpfl(package().temp_dir().absFileName() + "/lyx_tmpbuf" +
 324                 convert<string>(count++));
 325
 326         if (!tmpfl.createDirectory(0777)) {
 327                 throw ExceptionMessage(WarningException, _("Disk Error: "), bformat(
 328                         _("LyX could not create the temporary directory '%1$s' (Disk is full maybe?)"),
 329                         from_utf8(tmpfl.absFileName())));
 330         }
 331         return tmpfl;
 332 }
 333
 334
 335 Buffer::Impl::Impl(Buffer * owner, FileName const & file, bool readonly_,
 336         Buffer const * cloned_buffer)
 337         : owner_(owner), lyx_clean(true), bak_clean(true), unnamed(false),
 338           read_only(readonly_), filename(file), file_fully_loaded(false),
 339           toc_backend(owner), macro_lock(false), timestamp_(0), checksum_(0),
 340           wa_(0), gui_(0), undo_(*owner), bibinfo_cache_valid_(false),
 341           bibfile_cache_valid_(false), cite_labels_valid_(false),
 342           preview_loader_(0), cloned_buffer_(cloned_buffer),
 343           doing_export(false), parent_buffer(0)
 344 {
 345         if (!cloned_buffer_) {
 346                 temppath = createBufferTmpDir();
 347                 lyxvc.setBuffer(owner_);
 348                 if (use_gui)
 349                         wa_ = new frontend::WorkAreaManager;
 350                 return;
 351         }
 352         temppath = cloned_buffer_->d->temppath;
 353         file_fully_loaded = true;
 354         params = cloned_buffer_->d->params;
 355         bibfiles_cache_ = cloned_buffer_->d->bibfiles_cache_;
 356         bibinfo_ = cloned_buffer_->d->bibinfo_;
 357         bibinfo_cache_valid_ = cloned_buffer_->d->bibinfo_cache_valid_;
 358         bibfile_cache_valid_ = cloned_buffer_->d->bibfile_cache_valid_;
 359         bibfile_status_ = cloned_buffer_->d->bibfile_status_;
 360         cite_labels_valid_ = cloned_buffer_->d->cite_labels_valid_;
 361 }
 362
 363
 364 Buffer::Buffer(string const & file, bool readonly, Buffer const * cloned_buffer)
 365         : d(new Impl(this, FileName(file), readonly, cloned_buffer))
 366 {
 367         LYXERR(Debug::INFO, "Buffer::Buffer()");
 368         if (cloned_buffer) {
 369                 d->inset = new InsetText(*cloned_buffer->d->inset);
 370                 d->inset->setBuffer(*this);
 371                 // FIXME: optimize this loop somewhat, maybe by creating a new
 372                 // general recursive Inset::setId().
 373                 DocIterator it = doc_iterator_begin(this);
 374                 DocIterator cloned_it = doc_iterator_begin(cloned_buffer);
 375                 for (; !it.atEnd(); it.forwardPar(), cloned_it.forwardPar())
 376                         it.paragraph().setId(cloned_it.paragraph().id());
 377         } else
 378                 d->inset = new InsetText(this);
 379         d->inset->setAutoBreakRows(true);
 380         d->inset->getText(0)->setMacrocontextPosition(par_iterator_begin());
 381 }
 382
 383
 384 Buffer::~Buffer()
 385 {
 386         LYXERR(Debug::INFO, "Buffer::~Buffer()");
 387         // here the buffer should take care that it is
 388         // saved properly, before it goes into the void.
 389
 390         // GuiView already destroyed
 391         d->gui_ = 0;
 392
 393         if (isInternal()) {
 394                 // No need to do additional cleanups for internal buffer.
 395                 delete d;
 396                 return;
 397         }
 398
 399         // loop over children
 400         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
 401         Impl::BufferPositionMap::iterator end = d->children_positions.end();
 402         for (; it != end; ++it) {
 403                 Buffer * child = const_cast<Buffer *>(it->first);
 404                 if (d->cloned_buffer_)
 405                         delete child;
 406                 // The child buffer might have been closed already.
 407                 else if (theBufferList().isLoaded(child))
 408                         theBufferList().releaseChild(this, child);
 409         }
 410
 411         if (!isClean()) {
 412                 docstring msg = _("LyX attempted to close a document that had unsaved changes!\n");
 413                 msg += emergencyWrite();
 414                 Alert::warning(_("Attempting to close changed document!"), msg);
 415         }
 416
 417         // clear references to children in macro tables
 418         d->children_positions.clear();
 419         d->position_to_children.clear();
 420
 421         if (!d->cloned_buffer_ && !d->temppath.destroyDirectory()) {
 422                 Alert::warning(_("Could not remove temporary directory"),
 423                         bformat(_("Could not remove the temporary directory %1$s"),
 424                         from_utf8(d->temppath.absFileName())));
 425         }
 426
 427         if (!isClone())
 428                 removePreviews();
 429
 430         delete d;
 431 }
 432
 433
 434 Buffer * Buffer::clone() const
 435 {
 436         BufferMap bufmap;
 437         masterBuffer()->clone(bufmap);
 438         BufferMap::iterator it = bufmap.find(this);
 439         LASSERT(it != bufmap.end(), return 0);
 440         return it->second;
 441 }
 442
 443
 444 void Buffer::clone(BufferMap & bufmap) const
 445 {
 446         // have we already been cloned?
 447         if (bufmap.find(this) != bufmap.end())
 448                 return;
 449
 450         Buffer * buffer_clone = new Buffer(fileName().absFileName(), false, this);
 451         bufmap[this] = buffer_clone;
 452         buffer_clone->d->macro_lock = true;
 453         buffer_clone->d->children_positions.clear();
 454         // FIXME (Abdel 09/01/2010): this is too complicated. The whole children_positions and
 455         // math macro caches need to be rethought and simplified.
 456         // I am not sure wether we should handle Buffer cloning here or in BufferList.
 457         // Right now BufferList knows nothing about buffer clones.
 458         Impl::PositionScopeBufferMap::iterator it = d->position_to_children.begin();
 459         Impl::PositionScopeBufferMap::iterator end = d->position_to_children.end();
 460         for (; it != end; ++it) {
 461                 DocIterator dit = it->first.clone(buffer_clone);
 462                 dit.setBuffer(buffer_clone);
 463                 Buffer * child = const_cast<Buffer *>(it->second.second);
 464
 465                 child->clone(bufmap);
 466                 BufferMap::iterator const bit = bufmap.find(child);
 467                 LASSERT(bit != bufmap.end(), continue);
 468                 Buffer * child_clone = bit->second;
 469
 470                 Inset * inset = dit.nextInset();
 471                 LASSERT(inset && inset->lyxCode() == INCLUDE_CODE, continue);
 472                 InsetInclude * inset_inc = static_cast<InsetInclude *>(inset);
 473                 inset_inc->setChildBuffer(child_clone);
 474                 child_clone->d->setParent(buffer_clone);
 475                 // FIXME Do we need to do this now, or can we wait until we run updateMacros()?
 476                 buffer_clone->setChild(dit, child_clone);
 477         }
 478         buffer_clone->d->macro_lock = false;
 479         return;
 480 }
 481
 482
 483 bool Buffer::isClone() const
 484 {
 485         return d->cloned_buffer_;
 486 }
 487
 488
 489 void Buffer::changed(bool update_metrics) const
 490 {
 491         if (d->wa_)
 492                 d->wa_->redrawAll(update_metrics);
 493 }
 494
 495
 496 frontend::WorkAreaManager & Buffer::workAreaManager() const
 497 {
 498         LASSERT(d->wa_, /**/);
 499         return *d->wa_;
 500 }
 501
 502
 503 Text & Buffer::text() const
 504 {
 505         return d->inset->text();
 506 }
 507
 508
 509 Inset & Buffer::inset() const
 510 {
 511         return *d->inset;
 512 }
 513
 514
 515 BufferParams & Buffer::params()
 516 {
 517         return d->params;
 518 }
 519
 520
 521 BufferParams const & Buffer::params() const
 522 {
 523         return d->params;
 524 }
 525
 526
 527 ParagraphList & Buffer::paragraphs()
 528 {
 529         return text().paragraphs();
 530 }
 531
 532
 533 ParagraphList const & Buffer::paragraphs() const
 534 {
 535         return text().paragraphs();
 536 }
 537
 538
 539 LyXVC & Buffer::lyxvc()
 540 {
 541         return d->lyxvc;
 542 }
 543
 544
 545 LyXVC const & Buffer::lyxvc() const
 546 {
 547         return d->lyxvc;
 548 }
 549
 550
 551 string const Buffer::temppath() const
 552 {
 553         return d->temppath.absFileName();
 554 }
 555
 556
 557 TexRow & Buffer::texrow()
 558 {
 559         return d->texrow;
 560 }
 561
 562
 563 TexRow const & Buffer::texrow() const
 564 {
 565         return d->texrow;
 566 }
 567
 568
 569 TocBackend & Buffer::tocBackend() const
 570 {
 571         return d->toc_backend;
 572 }
 573
 574
 575 Undo & Buffer::undo()
 576 {
 577         return d->undo_;
 578 }
 579
 580
 581 void Buffer::setChild(DocIterator const & dit, Buffer * child)
 582 {
 583         d->children_positions[child] = dit;
 584 }
 585
 586
 587 string Buffer::latexName(bool const no_path) const
 588 {
 589         FileName latex_name =
 590                 makeLatexName(d->exportFileName());
 591         return no_path ? latex_name.onlyFileName()
 592                 : latex_name.absFileName();
 593 }
 594
 595
 596 FileName Buffer::Impl::exportFileName() const
 597 {
 598         docstring const branch_suffix =
 599                 params.branchlist().getFileNameSuffix();
 600         if (branch_suffix.empty())
 601                 return filename;
 602
 603         string const name = filename.onlyFileNameWithoutExt()
 604                 + to_utf8(branch_suffix);
 605         FileName res(filename.onlyPath().absFileName() + "/" + name);
 606         res.changeExtension(filename.extension());
 607
 608         return res;
 609 }
 610
 611
 612 string Buffer::logName(LogType * type) const
 613 {
 614         string const filename = latexName(false);
 615
 616         if (filename.empty()) {
 617                 if (type)
 618                         *type = latexlog;
 619                 return string();
 620         }
 621
 622         string const path = temppath();
 623
 624         FileName const fname(addName(temppath(),
 625                                      onlyFileName(changeExtension(filename,
 626                                                                   ".log"))));
 627
 628         // FIXME: how do we know this is the name of the build log?
 629         FileName const bname(
 630                 addName(path, onlyFileName(
 631                         changeExtension(filename,
 632                                         formats.extension(params().bufferFormat()) + ".out"))));
 633
 634         // Also consider the master buffer log file
 635         FileName masterfname = fname;
 636         LogType mtype;
 637         if (masterBuffer() != this) {
 638                 string const mlogfile = masterBuffer()->logName(&mtype);
 639                 masterfname = FileName(mlogfile);
 640         }
 641
 642         // If no Latex log or Build log is newer, show Build log
 643         if (bname.exists() &&
 644             ((!fname.exists() && !masterfname.exists())
 645              || (fname.lastModified() < bname.lastModified()
 646                  && masterfname.lastModified() < bname.lastModified()))) {
 647                 LYXERR(Debug::FILES, "Log name calculated as: " << bname);
 648                 if (type)
 649                         *type = buildlog;
 650                 return bname.absFileName();
 651         // If we have a newer master file log or only a master log, show this
 652         } else if (fname != masterfname
 653                    && (!fname.exists() && (masterfname.exists()
 654                    || fname.lastModified() < masterfname.lastModified()))) {
 655                 LYXERR(Debug::FILES, "Log name calculated as: " << masterfname);
 656                 if (type)
 657                         *type = mtype;
 658                 return masterfname.absFileName();
 659         }
 660         LYXERR(Debug::FILES, "Log name calculated as: " << fname);
 661         if (type)
 662                         *type = latexlog;
 663         return fname.absFileName();
 664 }
 665
 666
 667 void Buffer::setReadonly(bool const flag)
 668 {
 669         if (d->read_only != flag) {
 670                 d->read_only = flag;
 671                 changed(false);
 672         }
 673 }
 674
 675
 676 void Buffer::setFileName(FileName const & fname)
 677 {
 678         d->filename = fname;
 679         setReadonly(d->filename.isReadOnly());
 680         saveCheckSum();
 681         updateTitles();
 682 }
 683
 684
 685 int Buffer::readHeader(Lexer & lex)
 686 {
 687         int unknown_tokens = 0;
 688         int line = -1;
 689         int begin_header_line = -1;
 690
 691         // Initialize parameters that may be/go lacking in header:
 692         params().branchlist().clear();
 693         params().preamble.erase();
 694         params().options.erase();
 695         params().master.erase();
 696         params().float_placement.erase();
 697         params().paperwidth.erase();
 698         params().paperheight.erase();
 699         params().leftmargin.erase();
 700         params().rightmargin.erase();
 701         params().topmargin.erase();
 702         params().bottommargin.erase();
 703         params().headheight.erase();
 704         params().headsep.erase();
 705         params().footskip.erase();
 706         params().columnsep.erase();
 707         params().fonts_cjk.erase();
 708         params().listings_params.clear();
 709         params().clearLayoutModules();
 710         params().clearRemovedModules();
 711         params().clearIncludedChildren();
 712         params().pdfoptions().clear();
 713         params().indiceslist().clear();
 714         params().backgroundcolor = lyx::rgbFromHexName("#ffffff");
 715         params().isbackgroundcolor = false;
 716         params().fontcolor = lyx::rgbFromHexName("#000000");
 717         params().isfontcolor = false;
 718         params().notefontcolor = lyx::rgbFromHexName("#cccccc");
 719         params().boxbgcolor = lyx::rgbFromHexName("#ff0000");
 720         params().html_latex_start.clear();
 721         params().html_latex_end.clear();
 722         params().html_math_img_scale = 1.0;
 723         params().output_sync_macro.erase();
 724
 725         for (int i = 0; i < 4; ++i) {
 726                 params().user_defined_bullet(i) = ITEMIZE_DEFAULTS[i];
 727                 params().temp_bullet(i) = ITEMIZE_DEFAULTS[i];
 728         }
 729
 730         ErrorList & errorList = d->errorLists["Parse"];
 731
 732         while (lex.isOK()) {
 733                 string token;
 734                 lex >> token;
 735
 736                 if (token.empty())
 737                         continue;
 738
 739                 if (token == "\\end_header")
 740                         break;
 741
 742                 ++line;
 743                 if (token == "\\begin_header") {
 744                         begin_header_line = line;
 745                         continue;
 746                 }
 747
 748                 LYXERR(Debug::PARSER, "Handling document header token: `"
 749                                       << token << '\'');
 750
 751                 string unknown = params().readToken(lex, token, d->filename.onlyPath());
 752                 if (!unknown.empty()) {
 753                         if (unknown[0] != '\\' && token == "\\textclass") {
 754                                 Alert::warning(_("Unknown document class"),
 755                        bformat(_("Using the default document class, because the "
 756                                               "class %1$s is unknown."), from_utf8(unknown)));
 757                         } else {
 758                                 ++unknown_tokens;
 759                                 docstring const s = bformat(_("Unknown token: "
 760                                                                         "%1$s %2$s\n"),
 761                                                          from_utf8(token),
 762                                                          lex.getDocString());
 763                                 errorList.push_back(ErrorItem(_("Document header error"),
 764                                         s, -1, 0, 0));
 765                         }
 766                 }
 767         }
 768         if (begin_header_line) {
 769                 docstring const s = _("\\begin_header is missing");
 770                 errorList.push_back(ErrorItem(_("Document header error"),
 771                         s, -1, 0, 0));
 772         }
 773
 774         params().makeDocumentClass();
 775
 776         return unknown_tokens;
 777 }
 778
 779
 780 // Uwe C. Schroeder
 781 // changed to be public and have one parameter
 782 // Returns true if "\end_document" is not read (Asger)
 783 bool Buffer::readDocument(Lexer & lex)
 784 {
 785         ErrorList & errorList = d->errorLists["Parse"];
 786         errorList.clear();
 787
 788         // remove dummy empty par
 789         paragraphs().clear();
 790
 791         if (!lex.checkFor("\\begin_document")) {
 792                 docstring const s = _("\\begin_document is missing");
 793                 errorList.push_back(ErrorItem(_("Document header error"),
 794                         s, -1, 0, 0));
 795         }
 796
 797         readHeader(lex);
 798
 799         if (params().outputChanges) {
 800                 bool dvipost    = LaTeXFeatures::isAvailable("dvipost");
 801                 bool xcolorulem = LaTeXFeatures::isAvailable("ulem") &&
 802                                   LaTeXFeatures::isAvailable("xcolor");
 803
 804                 if (!dvipost && !xcolorulem) {
 805                         Alert::warning(_("Changes not shown in LaTeX output"),
 806                                        _("Changes will not be highlighted in LaTeX output, "
 807                                          "because neither dvipost nor xcolor/ulem are installed.\n"
 808                                          "Please install these packages or redefine "
 809                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 810                 } else if (!xcolorulem) {
 811                         Alert::warning(_("Changes not shown in LaTeX output"),
 812                                        _("Changes will not be highlighted in LaTeX output "
 813                                          "when using pdflatex, because xcolor and ulem are not installed.\n"
 814                                          "Please install both packages or redefine "
 815                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 816                 }
 817         }
 818
 819         if (!params().master.empty()) {
 820                 FileName const master_file = makeAbsPath(params().master,
 821                            onlyPath(absFileName()));
 822                 if (isLyXFileName(master_file.absFileName())) {
 823                         Buffer * master =
 824                                 checkAndLoadLyXFile(master_file, true);
 825                         if (master) {
 826                                 // necessary e.g. after a reload
 827                                 // to re-register the child (bug 5873)
 828                                 // FIXME: clean up updateMacros (here, only
 829                                 // child registering is needed).
 830                                 master->updateMacros();
 831                                 // set master as master buffer, but only
 832                                 // if we are a real child
 833                                 if (master->isChild(this))
 834                                         setParent(master);
 835                                 // if the master is not fully loaded
 836                                 // it is probably just loading this
 837                                 // child. No warning needed then.
 838                                 else if (master->isFullyLoaded())
 839                                         LYXERR0("The master '"
 840                                                 << params().master
 841                                                 << "' assigned to this document ("
 842                                                 << absFileName()
 843                                                 << ") does not include "
 844                                                 "this document. Ignoring the master assignment.");
 845                         }
 846                 }
 847         }
 848
 849         // assure we have a default index
 850         params().indiceslist().addDefault(B_("Index"));
 851
 852         // read main text
 853         bool const res = text().read(lex, errorList, d->inset);
 854
 855         // inform parent buffer about local macros
 856         if (parent()) {
 857                 Buffer const * pbuf = parent();
 858                 UserMacroSet::const_iterator cit = usermacros.begin();
 859                 UserMacroSet::const_iterator end = usermacros.end();
 860                 for (; cit != end; ++cit)
 861                         pbuf->usermacros.insert(*cit);
 862         }
 863         usermacros.clear();
 864         updateMacros();
 865         updateMacroInstances(InternalUpdate);
 866         return res;
 867 }
 868
 869
 870 bool Buffer::readString(string const & s)
 871 {
 872         params().compressed = false;
 873
 874         Lexer lex;
 875         istringstream is(s);
 876         lex.setStream(is);
 877         FileName const fn = FileName::tempName("Buffer_readString");
 878
 879         int file_format;
 880         ReadStatus const ret_plf = parseLyXFormat(lex, fn, file_format);
 881         if (ret_plf != ReadSuccess)
 882                 return ret_plf;
 883
 884         if (file_format != LYX_FORMAT) {
 885                 // We need to call lyx2lyx, so write the input to a file
 886                 ofstream os(fn.toFilesystemEncoding().c_str());
 887                 os << s;
 888                 os.close();
 889                 // lyxvc in readFile
 890                 return readFile(fn) == ReadSuccess;
 891         }
 892
 893         if (readDocument(lex))
 894                 return false;
 895         return true;
 896 }
 897
 898
 899 Buffer::ReadStatus Buffer::readFile(FileName const & fn)
 900 {
 901         FileName fname(fn);
 902         Lexer lex;
 903         if (!lex.setFile(fname)) {
 904                 Alert::error(_("File Not Found"),
 905                         bformat(_("Unable to open file `%1$s'."),
 906                                 from_utf8(fn.absFileName())));
 907                 return ReadFileNotFound;
 908         }
 909
 910         int file_format;
 911         ReadStatus const ret_plf = parseLyXFormat(lex, fn, file_format);
 912         if (ret_plf != ReadSuccess)
 913                 return ret_plf;
 914
 915         if (file_format != LYX_FORMAT) {
 916                 FileName tmpFile;
 917                 ReadStatus const ret_clf = convertLyXFormat(fn, tmpFile, file_format);
 918                 if (ret_clf != ReadSuccess)
 919                         return ret_clf;
 920                 return readFile(tmpFile);
 921         }
 922
 923         // FIXME: InsetInfo needs to know whether the file is under VCS
 924         // during the parse process, so this has to be done before.
 925         lyxvc().file_found_hook(d->filename);
 926
 927         if (readDocument(lex)) {
 928                 Alert::error(_("Document format failure"),
 929                         bformat(_("%1$s ended unexpectedly, which means"
 930                                 " that it is probably corrupted."),
 931                                         from_utf8(fn.absFileName())));
 932                 return ReadDocumentFailure;
 933         }
 934
 935         d->file_fully_loaded = true;
 936         d->read_only = !d->filename.isWritable();
 937         params().compressed = d->filename.isZippedFile();
 938         saveCheckSum();
 939         return ReadSuccess;
 940 }
 941
 942
 943 bool Buffer::isFullyLoaded() const
 944 {
 945         return d->file_fully_loaded;
 946 }
 947
 948
 949 void Buffer::setFullyLoaded(bool value)
 950 {
 951         d->file_fully_loaded = value;
 952 }
 953
 954
 955 PreviewLoader * Buffer::loader() const
 956 {
 957         if (lyxrc.preview == LyXRC::PREVIEW_OFF)
 958                 return 0;
 959         if (!d->preview_loader_)
 960                 d->preview_loader_ = new PreviewLoader(*this);
 961         return d->preview_loader_;
 962 }
 963
 964
 965 void Buffer::removePreviews() const
 966 {
 967         delete d->preview_loader_;
 968         d->preview_loader_ = 0;
 969 }
 970
 971
 972 void Buffer::updatePreviews() const
 973 {
 974         PreviewLoader * ploader = loader();
 975         if (!ploader)
 976                 return;
 977
 978         InsetIterator it = inset_iterator_begin(*d->inset);
 979         InsetIterator const end = inset_iterator_end(*d->inset);
 980         for (; it != end; ++it)
 981                 it->addPreview(it, *ploader);
 982
 983         ploader->startLoading();
 984 }
 985
 986
 987 Buffer::ReadStatus Buffer::parseLyXFormat(Lexer & lex,
 988         FileName const & fn, int & file_format) const
 989 {
 990         if(!lex.checkFor("\\lyxformat")) {
 991                 Alert::error(_("Document format failure"),
 992                         bformat(_("%1$s is not a readable LyX document."),
 993                                 from_utf8(fn.absFileName())));
 994                 return ReadNoLyXFormat;
 995         }
 996
 997         string tmp_format;
 998         lex >> tmp_format;
 999
1000         // LyX formats 217 and earlier were written as 2.17. This corresponds
1001         // to files from LyX versions < 1.1.6.3. We just remove the dot in
1002         // these cases. See also: www.lyx.org/trac/changeset/1313.
1003         size_t dot = tmp_format.find_first_of(".,");
1004         if (dot != string::npos)
1005                 tmp_format.erase(dot, 1);
1006
1007         file_format = convert<int>(tmp_format);
1008         return ReadSuccess;
1009 }
1010
1011
1012 Buffer::ReadStatus Buffer::convertLyXFormat(FileName const & fn,
1013         FileName & tmpfile, int from_format)
1014 {
1015         tmpfile = FileName::tempName("Buffer_convertLyXFormat");
1016         if(tmpfile.empty()) {
1017                 Alert::error(_("Conversion failed"),
1018                         bformat(_("%1$s is from a different"
1019                                 " version of LyX, but a temporary"
1020                                 " file for converting it could"
1021                                 " not be created."),
1022                                 from_utf8(fn.absFileName())));
1023                 return LyX2LyXNoTempFile;
1024         }
1025
1026         FileName const lyx2lyx = libFileSearch("lyx2lyx", "lyx2lyx");
1027         if (lyx2lyx.empty()) {
1028                 Alert::error(_("Conversion script not found"),
1029                      bformat(_("%1$s is from a different"
1030                                " version of LyX, but the"
1031                                " conversion script lyx2lyx"
1032                                " could not be found."),
1033                                from_utf8(fn.absFileName())));
1034                 return LyX2LyXNotFound;
1035         }
1036
1037         // Run lyx2lyx:
1038         //   $python$ "$lyx2lyx$" -t $LYX_FORMAT$ -o "$tempfile$" "$filetoread$"
1039         ostringstream command;
1040         command << os::python()
1041                 << ' ' << quoteName(lyx2lyx.toFilesystemEncoding())
1042                 << " -t " << convert<string>(LYX_FORMAT)
1043                 << " -o " << quoteName(tmpfile.toFilesystemEncoding())
1044                 << ' ' << quoteName(fn.toSafeFilesystemEncoding());
1045         string const command_str = command.str();
1046
1047         LYXERR(Debug::INFO, "Running '" << command_str << '\'');
1048
1049         cmd_ret const ret = runCommand(command_str);
1050         if (ret.first != 0) {
1051                 if (from_format < LYX_FORMAT) {
1052                         Alert::error(_("Conversion script failed"),
1053                                 bformat(_("%1$s is from an older version"
1054                                         " of LyX and the lyx2lyx script"
1055                                         " failed to convert it."),
1056                                         from_utf8(fn.absFileName())));
1057                         return LyX2LyXOlderFormat;
1058                 } else {
1059                         Alert::error(_("Conversion script failed"),
1060                                 bformat(_("%1$s is from a newer version"
1061                                         " of LyX and the lyx2lyx script"
1062                                         " failed to convert it."),
1063                                         from_utf8(fn.absFileName())));
1064                         return LyX2LyXNewerFormat;
1065                 }
1066         }
1067         return ReadSuccess;
1068 }
1069
1070
1071 // Should probably be moved to somewhere else: BufferView? GuiView?
1072 bool Buffer::save() const
1073 {
1074         docstring const file = makeDisplayPath(absFileName(), 20);
1075         d->filename.refresh();
1076
1077         // check the read-only status before moving the file as a backup
1078         if (d->filename.exists()) {
1079                 bool const read_only = !d->filename.isWritable();
1080                 if (read_only) {
1081                         Alert::warning(_("File is read-only"),
1082                                 bformat(_("The file %1$s cannot be written because it "
1083                                 "is marked as read-only."), file));
1084                         return false;
1085                 }
1086         }
1087
1088         // ask if the disk file has been externally modified (use checksum method)
1089         if (fileName().exists() && isExternallyModified(checksum_method)) {
1090                 docstring text =
1091                         bformat(_("Document %1$s has been externally modified. "
1092                                 "Are you sure you want to overwrite this file?"), file);
1093                 int const ret = Alert::prompt(_("Overwrite modified file?"),
1094                         text, 1, 1, _("&Overwrite"), _("&Cancel"));
1095                 if (ret == 1)
1096                         return false;
1097         }
1098
1099         // We don't need autosaves in the immediate future. (Asger)
1100         resetAutosaveTimers();
1101
1102         FileName backupName;
1103         bool madeBackup = false;
1104
1105         // make a backup if the file already exists
1106         if (lyxrc.make_backup && fileName().exists()) {
1107                 backupName = FileName(absFileName() + '~');
1108                 if (!lyxrc.backupdir_path.empty()) {
1109                         string const mangledName =
1110                                 subst(subst(backupName.absFileName(), '/', '!'), ':', '!');
1111                         backupName = FileName(addName(lyxrc.backupdir_path,
1112                                                       mangledName));
1113                 }
1114
1115                 // Except file is symlink do not copy because of #6587.
1116                 // Hard links have bad luck.
1117                 if (fileName().isSymLink())
1118                         madeBackup = fileName().copyTo(backupName);
1119                 else
1120                         madeBackup = fileName().moveTo(backupName);
1121
1122                 if (!madeBackup) {
1123                         Alert::error(_("Backup failure"),
1124                                      bformat(_("Cannot create backup file %1$s.\n"
1125                                                "Please check whether the directory exists and is writable."),
1126                                              from_utf8(backupName.absFileName())));
1127                         //LYXERR(Debug::DEBUG, "Fs error: " << fe.what());
1128                 }
1129         }
1130
1131         if (writeFile(d->filename)) {
1132                 markClean();
1133                 return true;
1134         } else {
1135                 // Saving failed, so backup is not backup
1136                 if (madeBackup)
1137                         backupName.moveTo(d->filename);
1138                 return false;
1139         }
1140 }
1141
1142
1143 bool Buffer::writeFile(FileName const & fname) const
1144 {
1145         // FIXME Do we need to do these here? I don't think writing
1146         // the LyX file depends upon it. (RGH)
1147         // updateBuffer();
1148         // updateMacroInstances();
1149
1150         if (d->read_only && fname == d->filename)
1151                 return false;
1152
1153         bool retval = false;
1154
1155         docstring const str = bformat(_("Saving document %1$s..."),
1156                 makeDisplayPath(fname.absFileName()));
1157         message(str);
1158
1159         string const encoded_fname = fname.toSafeFilesystemEncoding(os::CREATE);
1160
1161         if (params().compressed) {
1162                 gz::ogzstream ofs(encoded_fname.c_str(), ios::out|ios::trunc);
1163                 retval = ofs && write(ofs);
1164         } else {
1165                 ofstream ofs(encoded_fname.c_str(), ios::out|ios::trunc);
1166                 retval = ofs && write(ofs);
1167         }
1168
1169         if (!retval) {
1170                 message(str + _(" could not write file!"));
1171                 return false;
1172         }
1173
1174         // see bug 6587
1175         // removeAutosaveFile();
1176
1177         saveCheckSum();
1178         message(str + _(" done."));
1179
1180         return true;
1181 }
1182
1183
1184 docstring Buffer::emergencyWrite()
1185 {
1186         // No need to save if the buffer has not changed.
1187         if (isClean())
1188                 return docstring();
1189
1190         string const doc = isUnnamed() ? onlyFileName(absFileName()) : absFileName();
1191
1192         docstring user_message = bformat(
1193                 _("LyX: Attempting to save document %1$s\n"), from_utf8(doc));
1194
1195         // We try to save three places:
1196         // 1) Same place as document. Unless it is an unnamed doc.
1197         if (!isUnnamed()) {
1198                 string s = absFileName();
1199                 s += ".emergency";
1200                 LYXERR0("  " << s);
1201                 if (writeFile(FileName(s))) {
1202                         markClean();
1203                         user_message += "  " + bformat(_("Saved to %1$s. Phew.\n"), from_utf8(s));
1204                         return user_message;
1205                 } else {
1206                         user_message += "  " + _("Save failed! Trying again...\n");
1207                 }
1208         }
1209
1210         // 2) In HOME directory.
1211         string s = addName(Package::get_home_dir().absFileName(), absFileName());
1212         s += ".emergency";
1213         lyxerr << ' ' << s << endl;
1214         if (writeFile(FileName(s))) {
1215                 markClean();
1216                 user_message += "  " + bformat(_("Saved to %1$s. Phew.\n"), from_utf8(s));
1217                 return user_message;
1218         }
1219
1220         user_message += "  " + _("Save failed! Trying yet again...\n");
1221
1222         // 3) In "/tmp" directory.
1223         // MakeAbsPath to prepend the current
1224         // drive letter on OS/2
1225         s = addName(package().temp_dir().absFileName(), absFileName());
1226         s += ".emergency";
1227         lyxerr << ' ' << s << endl;
1228         if (writeFile(FileName(s))) {
1229                 markClean();
1230                 user_message += "  " + bformat(_("Saved to %1$s. Phew.\n"), from_utf8(s));
1231                 return user_message;
1232         }
1233
1234         user_message += "  " + _("Save failed! Bummer. Document is lost.");
1235         // Don't try again.
1236         markClean();
1237         return user_message;
1238 }
1239
1240
1241 bool Buffer::write(ostream & ofs) const
1242 {
1243 #ifdef HAVE_LOCALE
1244         // Use the standard "C" locale for file output.
1245         ofs.imbue(locale::classic());
1246 #endif
1247
1248         // The top of the file should not be written by params().
1249
1250         // write out a comment in the top of the file
1251         ofs << "#LyX " << lyx_version_major << "." << lyx_version_minor
1252             << " created this file. For more info see http://www.lyx.org/\n"
1253             << "\\lyxformat " << LYX_FORMAT << "\n"
1254             << "\\begin_document\n";
1255
1256         /// For each author, set 'used' to true if there is a change
1257         /// by this author in the document; otherwise set it to 'false'.
1258         AuthorList::Authors::const_iterator a_it = params().authors().begin();
1259         AuthorList::Authors::const_iterator a_end = params().authors().end();
1260         for (; a_it != a_end; ++a_it)
1261                 a_it->setUsed(false);
1262
1263         ParIterator const end = const_cast<Buffer *>(this)->par_iterator_end();
1264         ParIterator it = const_cast<Buffer *>(this)->par_iterator_begin();
1265         for ( ; it != end; ++it)
1266                 it->checkAuthors(params().authors());
1267
1268         // now write out the buffer parameters.
1269         ofs << "\\begin_header\n";
1270         params().writeFile(ofs);
1271         ofs << "\\end_header\n";
1272
1273         // write the text
1274         ofs << "\n\\begin_body\n";
1275         text().write(ofs);
1276         ofs << "\n\\end_body\n";
1277
1278         // Write marker that shows file is complete
1279         ofs << "\\end_document" << endl;
1280
1281         // Shouldn't really be needed....
1282         //ofs.close();
1283
1284         // how to check if close went ok?
1285         // Following is an attempt... (BE 20001011)
1286
1287         // good() returns false if any error occured, including some
1288         //        formatting error.
1289         // bad()  returns true if something bad happened in the buffer,
1290         //        which should include file system full errors.
1291
1292         bool status = true;
1293         if (!ofs) {
1294                 status = false;
1295                 lyxerr << "File was not closed properly." << endl;
1296         }
1297
1298         return status;
1299 }
1300
1301
1302 bool Buffer::makeLaTeXFile(FileName const & fname,
1303                            string const & original_path,
1304                            OutputParams const & runparams_in,
1305                            bool output_preamble, bool output_body) const
1306 {
1307         OutputParams runparams = runparams_in;
1308
1309         // This is necessary for LuaTeX/XeTeX with tex fonts.
1310         // See FIXME in BufferParams::encoding()
1311         if (runparams.isFullUnicode())
1312                 runparams.encoding = encodings.fromLyXName("utf8-plain");
1313
1314         string const encoding = runparams.encoding->iconvName();
1315         LYXERR(Debug::LATEX, "makeLaTeXFile encoding: " << encoding << "...");
1316
1317         ofdocstream ofs;
1318         try { ofs.reset(encoding); }
1319         catch (iconv_codecvt_facet_exception & e) {
1320                 lyxerr << "Caught iconv exception: " << e.what() << endl;
1321                 Alert::error(_("Iconv software exception Detected"), bformat(_("Please "
1322                         "verify that the support software for your encoding (%1$s) is "
1323                         "properly installed"), from_ascii(encoding)));
1324                 return false;
1325         }
1326         if (!openFileWrite(ofs, fname))
1327                 return false;
1328
1329         //TexStream ts(ofs.rdbuf(), &texrow());
1330         ErrorList & errorList = d->errorLists["Export"];
1331         errorList.clear();
1332         bool failed_export = false;
1333         otexstream os(ofs, d->texrow);
1334
1335         // make sure we are ready to export
1336         // this needs to be done before we validate
1337         // FIXME Do we need to do this all the time? I.e., in children
1338         // of a master we are exporting?
1339         updateBuffer();
1340         updateMacroInstances(OutputUpdate);
1341
1342         try {
1343                 os.texrow().reset();
1344                 writeLaTeXSource(os, original_path,
1345                       runparams, output_preamble, output_body);
1346         }
1347         catch (EncodingException & e) {
1348                 odocstringstream ods;
1349                 ods.put(e.failed_char);
1350                 ostringstream oss;
1351                 oss << "0x" << hex << e.failed_char << dec;
1352                 docstring msg = bformat(_("Could not find LaTeX command for character '%1$s'"
1353                                           " (code point %2$s)"),
1354                                           ods.str(), from_utf8(oss.str()));
1355                 errorList.push_back(ErrorItem(msg, _("Some characters of your document are probably not "
1356                                 "representable in the chosen encoding.\n"
1357                                 "Changing the document encoding to utf8 could help."),
1358                                 e.par_id, e.pos, e.pos + 1));
1359                 failed_export = true;
1360         }
1361         catch (iconv_codecvt_facet_exception & e) {
1362                 errorList.push_back(ErrorItem(_("iconv conversion failed"),
1363                         _(e.what()), -1, 0, 0));
1364                 failed_export = true;
1365         }
1366         catch (exception const & e) {
1367                 errorList.push_back(ErrorItem(_("conversion failed"),
1368                         _(e.what()), -1, 0, 0));
1369                 failed_export = true;
1370         }
1371         catch (...) {
1372                 lyxerr << "Caught some really weird exception..." << endl;
1373                 lyx_exit(1);
1374         }
1375
1376         ofs.close();
1377         if (ofs.fail()) {
1378                 failed_export = true;
1379                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1380         }
1381
1382         errors("Export");
1383         return !failed_export;
1384 }
1385
1386
1387 void Buffer::writeLaTeXSource(otexstream & os,
1388                            string const & original_path,
1389                            OutputParams const & runparams_in,
1390                            bool const output_preamble, bool const output_body) const
1391 {
1392         // The child documents, if any, shall be already loaded at this point.
1393
1394         OutputParams runparams = runparams_in;
1395
1396         // Classify the unicode characters appearing in math insets
1397         Encodings::initUnicodeMath(*this);
1398
1399         // validate the buffer.
1400         LYXERR(Debug::LATEX, "  Validating buffer...");
1401         LaTeXFeatures features(*this, params(), runparams);
1402         validate(features);
1403         LYXERR(Debug::LATEX, "  Buffer validation done.");
1404
1405         // The starting paragraph of the coming rows is the
1406         // first paragraph of the document. (Asger)
1407         if (output_preamble && runparams.nice) {
1408                 os << "%% LyX " << lyx_version << " created this file.  "
1409                         "For more info, see http://www.lyx.org/.\n"
1410                         "%% Do not edit unless you really know what "
1411                         "you are doing.\n";
1412         }
1413         LYXERR(Debug::INFO, "lyx document header finished");
1414
1415         // There are a few differences between nice LaTeX and usual files:
1416         // usual is \batchmode and has a
1417         // special input@path to allow the including of figures
1418         // with either \input or \includegraphics (what figinsets do).
1419         // input@path is set when the actual parameter
1420         // original_path is set. This is done for usual tex-file, but not
1421         // for nice-latex-file. (Matthias 250696)
1422         // Note that input@path is only needed for something the user does
1423         // in the preamble, included .tex files or ERT, files included by
1424         // LyX work without it.
1425         if (output_preamble) {
1426                 if (!runparams.nice) {
1427                         // code for usual, NOT nice-latex-file
1428                         os << "\\batchmode\n"; // changed from \nonstopmode
1429                 }
1430                 if (!original_path.empty()) {
1431                         // FIXME UNICODE
1432                         // We don't know the encoding of inputpath
1433                         docstring const inputpath = from_utf8(support::latex_path(original_path));
1434                         docstring uncodable_glyphs;
1435                         Encoding const * const enc = runparams.encoding;
1436                         if (enc) {
1437                                 for (size_t n = 0; n < inputpath.size(); ++n) {
1438                                         docstring const glyph =
1439                                                 docstring(1, inputpath[n]);
1440                                         if (enc->latexChar(inputpath[n], true) != glyph) {
1441                                                 LYXERR0("Uncodable character '"
1442                                                         << glyph
1443                                                         << "' in input path!");
1444                                                 uncodable_glyphs += glyph;
1445                                         }
1446                                 }
1447                         }
1448
1449                         // warn user if we found uncodable glyphs.
1450                         if (!uncodable_glyphs.empty()) {
1451                                 frontend::Alert::warning(_("Uncodable character in file path"),
1452                                                 support::bformat(_("The path of your document\n"
1453                                                   "(%1$s)\n"
1454                                                   "contains glyphs that are unknown in the\n"
1455                                                   "current document encoding (namely %2$s).\n"
1456                                                   "This will likely result in incomplete output.\n\n"
1457                                                   "Choose an appropriate document encoding (such as utf8)\n"
1458                                                   "or change the file path name."), inputpath, uncodable_glyphs));
1459                         } else {
1460                                 os << "\\makeatletter\n"
1461                                    << "\\def\\input@path{{"
1462                                    << inputpath << "/}}\n"
1463                                    << "\\makeatother\n";
1464                         }
1465                 }
1466
1467                 // get parent macros (if this buffer has a parent) which will be
1468                 // written at the document begin further down.
1469                 MacroSet parentMacros;
1470                 listParentMacros(parentMacros, features);
1471
1472                 runparams.use_polyglossia = features.usePolyglossia();
1473                 // Write the preamble
1474                 runparams.use_babel = params().writeLaTeX(os, features,
1475                                                           d->filename.onlyPath());
1476
1477                 runparams.use_japanese = features.isRequired("japanese");
1478
1479                 if (!output_body)
1480                         return;
1481
1482                 // make the body.
1483                 os << "\\begin{document}\n";
1484
1485                 // output the parent macros
1486                 MacroSet::iterator it = parentMacros.begin();
1487                 MacroSet::iterator end = parentMacros.end();
1488                 for (; it != end; ++it) {
1489                         int num_lines = (*it)->write(os.os(), true);
1490                         os.texrow().newlines(num_lines);
1491                 }
1492
1493         } // output_preamble
1494
1495         os.texrow().start(paragraphs().begin()->id(), 0);
1496
1497         LYXERR(Debug::INFO, "preamble finished, now the body.");
1498
1499         // if we are doing a real file with body, even if this is the
1500         // child of some other buffer, let's cut the link here.
1501         // This happens for example if only a child document is printed.
1502         Buffer const * save_parent = 0;
1503         if (output_preamble) {
1504                 save_parent = d->parent();
1505                 d->setParent(0);
1506         }
1507
1508         // the real stuff
1509         latexParagraphs(*this, text(), os, runparams);
1510
1511         // Restore the parenthood if needed
1512         if (output_preamble)
1513                 d->setParent(save_parent);
1514
1515         // add this just in case after all the paragraphs
1516         os << endl;
1517
1518         if (output_preamble) {
1519                 os << "\\end{document}\n";
1520                 LYXERR(Debug::LATEX, "makeLaTeXFile...done");
1521         } else {
1522                 LYXERR(Debug::LATEX, "LaTeXFile for inclusion made.");
1523         }
1524         runparams_in.encoding = runparams.encoding;
1525
1526         // Just to be sure. (Asger)
1527         os.texrow().newline();
1528
1529         //for (int i = 0; i<d->texrow.rows(); i++) {
1530         // int id,pos;
1531         // if (d->texrow.getIdFromRow(i+1,id,pos) && id>0)
1532         //      lyxerr << i+1 << ":" << id << ":" << getParFromID(id).paragraph().asString()<<"\n";
1533         //}
1534
1535         LYXERR(Debug::INFO, "Finished making LaTeX file.");
1536         LYXERR(Debug::INFO, "Row count was " << os.texrow().rows() - 1 << '.');
1537 }
1538
1539
1540 void Buffer::makeDocBookFile(FileName const & fname,
1541                               OutputParams const & runparams,
1542                               bool const body_only) const
1543 {
1544         LYXERR(Debug::LATEX, "makeDocBookFile...");
1545
1546         ofdocstream ofs;
1547         if (!openFileWrite(ofs, fname))
1548                 return;
1549
1550         // make sure we are ready to export
1551         // this needs to be done before we validate
1552         updateBuffer();
1553         updateMacroInstances(OutputUpdate);
1554
1555         writeDocBookSource(ofs, fname.absFileName(), runparams, body_only);
1556
1557         ofs.close();
1558         if (ofs.fail())
1559                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1560 }
1561
1562
1563 void Buffer::writeDocBookSource(odocstream & os, string const & fname,
1564                              OutputParams const & runparams,
1565                              bool const only_body) const
1566 {
1567         LaTeXFeatures features(*this, params(), runparams);
1568         validate(features);
1569
1570         d->texrow.reset();
1571
1572         DocumentClass const & tclass = params().documentClass();
1573         string const top_element = tclass.latexname();
1574
1575         if (!only_body) {
1576                 if (runparams.flavor == OutputParams::XML)
1577                         os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
1578
1579                 // FIXME UNICODE
1580                 os << "<!DOCTYPE " << from_ascii(top_element) << ' ';
1581
1582                 // FIXME UNICODE
1583                 if (! tclass.class_header().empty())
1584                         os << from_ascii(tclass.class_header());
1585                 else if (runparams.flavor == OutputParams::XML)
1586                         os << "PUBLIC \"-//OASIS//DTD DocBook XML//EN\" "
1587                             << "\"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd\"";
1588                 else
1589                         os << " PUBLIC \"-//OASIS//DTD DocBook V4.2//EN\"";
1590
1591                 docstring preamble = from_utf8(params().preamble);
1592                 if (runparams.flavor != OutputParams::XML ) {
1593                         preamble += "<!ENTITY % output.print.png \"IGNORE\">\n";
1594                         preamble += "<!ENTITY % output.print.pdf \"IGNORE\">\n";
1595                         preamble += "<!ENTITY % output.print.eps \"IGNORE\">\n";
1596                         preamble += "<!ENTITY % output.print.bmp \"IGNORE\">\n";
1597                 }
1598
1599                 string const name = runparams.nice
1600                         ? changeExtension(absFileName(), ".sgml") : fname;
1601                 preamble += features.getIncludedFiles(name);
1602                 preamble += features.getLyXSGMLEntities();
1603
1604                 if (!preamble.empty()) {
1605                         os << "\n [ " << preamble << " ]";
1606                 }
1607                 os << ">\n\n";
1608         }
1609
1610         string top = top_element;
1611         top += " lang=\"";
1612         if (runparams.flavor == OutputParams::XML)
1613                 top += params().language->code();
1614         else
1615                 top += params().language->code().substr(0, 2);
1616         top += '"';
1617
1618         if (!params().options.empty()) {
1619                 top += ' ';
1620                 top += params().options;
1621         }
1622
1623         os << "<!-- " << ((runparams.flavor == OutputParams::XML)? "XML" : "SGML")
1624             << " file was created by LyX " << lyx_version
1625             << "\n  See http://www.lyx.org/ for more information -->\n";
1626
1627         params().documentClass().counters().reset();
1628
1629         sgml::openTag(os, top);
1630         os << '\n';
1631         docbookParagraphs(text(), *this, os, runparams);
1632         sgml::closeTag(os, top_element);
1633 }
1634
1635
1636 void Buffer::makeLyXHTMLFile(FileName const & fname,
1637                               OutputParams const & runparams) const
1638 {
1639         LYXERR(Debug::LATEX, "makeLyXHTMLFile...");
1640
1641         ofdocstream ofs;
1642         if (!openFileWrite(ofs, fname))
1643                 return;
1644
1645         // make sure we are ready to export
1646         // this has to be done before we validate
1647         updateBuffer(UpdateMaster, OutputUpdate);
1648         updateMacroInstances(OutputUpdate);
1649
1650         writeLyXHTMLSource(ofs, runparams);
1651
1652         ofs.close();
1653         if (ofs.fail())
1654                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1655 }
1656
1657
1658 void Buffer::writeLyXHTMLSource(odocstream & os,
1659                              OutputParams const & runparams,
1660                              bool const only_body) const
1661 {
1662         LaTeXFeatures features(*this, params(), runparams);
1663         validate(features);
1664         d->bibinfo_.makeCitationLabels(*this);
1665
1666         if (!only_body) {
1667                 os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
1668                    << "<!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"
1669                    // FIXME Language should be set properly.
1670                    << "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n"
1671                    << "<head>\n"
1672                    << "<meta name=\"GENERATOR\" content=\"" << PACKAGE_STRING << "\" />\n"
1673                    // FIXME Presumably need to set this right
1674                    << "<meta http-equiv=\"Content-type\" content=\"text/html;charset=UTF-8\" />\n";
1675
1676                 docstring const & doctitle = features.htmlTitle();
1677                 os << "<title>"
1678                    << (doctitle.empty() ? from_ascii("LyX Document") : doctitle)
1679                    << "</title>\n";
1680
1681                 os << "\n<!-- Text Class Preamble -->\n"
1682                    << features.getTClassHTMLPreamble()
1683                    << "\n<!-- Preamble Snippets -->\n"
1684                    << from_utf8(features.getPreambleSnippets());
1685
1686                 os << "\n<!-- Layout-provided Styles -->\n";
1687                 docstring const styleinfo = features.getTClassHTMLStyles();
1688                 if (!styleinfo.empty()) {
1689                         os << "<style type='text/css'>\n"
1690                                 << styleinfo
1691                                 << "</style>\n";
1692                 }
1693                 os << "</head>\n<body>\n";
1694         }
1695
1696         XHTMLStream xs(os);
1697         params().documentClass().counters().reset();
1698         xhtmlParagraphs(text(), *this, xs, runparams);
1699         if (!only_body)
1700                 os << "</body>\n</html>\n";
1701 }
1702
1703
1704 // chktex should be run with these flags disabled: 3, 22, 25, 30, 38(?)
1705 // Other flags: -wall -v0 -x
1706 int Buffer::runChktex()
1707 {
1708         setBusy(true);
1709
1710         // get LaTeX-Filename
1711         FileName const path(temppath());
1712         string const name = addName(path.absFileName(), latexName());
1713         string const org_path = filePath();
1714
1715         PathChanger p(path); // path to LaTeX file
1716         message(_("Running chktex..."));
1717
1718         // Generate the LaTeX file if neccessary
1719         OutputParams runparams(&params().encoding());
1720         runparams.flavor = OutputParams::LATEX;
1721         runparams.nice = false;
1722         runparams.linelen = lyxrc.plaintext_linelen;
1723         makeLaTeXFile(FileName(name), org_path, runparams);
1724
1725         TeXErrors terr;
1726         Chktex chktex(lyxrc.chktex_command, onlyFileName(name), filePath());
1727         int const res = chktex.run(terr); // run chktex
1728
1729         if (res == -1) {
1730                 Alert::error(_("chktex failure"),
1731                              _("Could not run chktex successfully."));
1732         } else if (res > 0) {
1733                 ErrorList & errlist = d->errorLists["ChkTeX"];
1734                 errlist.clear();
1735                 bufferErrors(terr, errlist);
1736         }
1737
1738         setBusy(false);
1739
1740         errors("ChkTeX");
1741
1742         return res;
1743 }
1744
1745
1746 void Buffer::validate(LaTeXFeatures & features) const
1747 {
1748         params().validate(features);
1749
1750         for_each(paragraphs().begin(), paragraphs().end(),
1751                  bind(&Paragraph::validate, _1, ref(features)));
1752
1753         if (lyxerr.debugging(Debug::LATEX)) {
1754                 features.showStruct();
1755         }
1756 }
1757
1758
1759 void Buffer::getLabelList(vector<docstring> & list) const
1760 {
1761         // If this is a child document, use the master's list instead.
1762         if (parent()) {
1763                 masterBuffer()->getLabelList(list);
1764                 return;
1765         }
1766
1767         list.clear();
1768         Toc & toc = d->toc_backend.toc("label");
1769         TocIterator toc_it = toc.begin();
1770         TocIterator end = toc.end();
1771         for (; toc_it != end; ++toc_it) {
1772                 if (toc_it->depth() == 0)
1773                         list.push_back(toc_it->str());
1774         }
1775 }
1776
1777
1778 void Buffer::updateBibfilesCache(UpdateScope scope) const
1779 {
1780         // FIXME This is probably unnecssary, given where we call this.
1781         // If this is a child document, use the parent's cache instead.
1782         if (parent() && scope != UpdateChildOnly) {
1783                 masterBuffer()->updateBibfilesCache();
1784                 return;
1785         }
1786
1787         d->bibfiles_cache_.clear();
1788         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
1789                 if (it->lyxCode() == BIBTEX_CODE) {
1790                         InsetBibtex const & inset = static_cast<InsetBibtex const &>(*it);
1791                         support::FileNameList const bibfiles = inset.getBibFiles();
1792                         d->bibfiles_cache_.insert(d->bibfiles_cache_.end(),
1793                                 bibfiles.begin(),
1794                                 bibfiles.end());
1795                 } else if (it->lyxCode() == INCLUDE_CODE) {
1796                         InsetInclude & inset = static_cast<InsetInclude &>(*it);
1797                         Buffer const * const incbuf = inset.getChildBuffer();
1798                         if (!incbuf)
1799                                 continue;
1800                         support::FileNameList const & bibfiles =
1801                                         incbuf->getBibfilesCache(UpdateChildOnly);
1802                         if (!bibfiles.empty()) {
1803                                 d->bibfiles_cache_.insert(d->bibfiles_cache_.end(),
1804                                         bibfiles.begin(),
1805                                         bibfiles.end());
1806                         }
1807                 }
1808         }
1809         d->bibfile_cache_valid_ = true;
1810         d->bibinfo_cache_valid_ = false;
1811         d->cite_labels_valid_ = false;
1812 }
1813
1814
1815 void Buffer::invalidateBibinfoCache() const
1816 {
1817         d->bibinfo_cache_valid_ = false;
1818         d->cite_labels_valid_ = false;
1819         // also invalidate the cache for the parent buffer
1820         Buffer const * const pbuf = d->parent();
1821         if (pbuf)
1822                 pbuf->invalidateBibinfoCache();
1823 }
1824
1825
1826 void Buffer::invalidateBibfileCache() const
1827 {
1828         d->bibfile_cache_valid_ = false;
1829         d->bibinfo_cache_valid_ = false;
1830         d->cite_labels_valid_ = false;
1831         // also invalidate the cache for the parent buffer
1832         Buffer const * const pbuf = d->parent();
1833         if (pbuf)
1834                 pbuf->invalidateBibfileCache();
1835 }
1836
1837
1838 support::FileNameList const & Buffer::getBibfilesCache(UpdateScope scope) const
1839 {
1840         // FIXME This is probably unnecessary, given where we call this.
1841         // If this is a child document, use the master's cache instead.
1842         Buffer const * const pbuf = masterBuffer();
1843         if (pbuf != this && scope != UpdateChildOnly)
1844                 return pbuf->getBibfilesCache();
1845
1846         if (!d->bibfile_cache_valid_)
1847                 this->updateBibfilesCache(scope);
1848
1849         return d->bibfiles_cache_;
1850 }
1851
1852
1853 BiblioInfo const & Buffer::masterBibInfo() const
1854 {
1855         Buffer const * const tmp = masterBuffer();
1856         if (tmp != this)
1857                 return tmp->masterBibInfo();
1858         return d->bibinfo_;
1859 }
1860
1861
1862 void Buffer::checkIfBibInfoCacheIsValid() const
1863 {
1864         // use the master's cache
1865         Buffer const * const tmp = masterBuffer();
1866         if (tmp != this) {
1867                 tmp->checkIfBibInfoCacheIsValid();
1868                 return;
1869         }
1870
1871         // compare the cached timestamps with the actual ones.
1872         FileNameList const & bibfiles_cache = getBibfilesCache();
1873         FileNameList::const_iterator ei = bibfiles_cache.begin();
1874         FileNameList::const_iterator en = bibfiles_cache.end();
1875         for (; ei != en; ++ ei) {
1876                 time_t lastw = ei->lastModified();
1877                 time_t prevw = d->bibfile_status_[*ei];
1878                 if (lastw != prevw) {
1879                         d->bibinfo_cache_valid_ = false;
1880                         d->cite_labels_valid_ = false;
1881                         d->bibfile_status_[*ei] = lastw;
1882                 }
1883         }
1884 }
1885
1886
1887 void Buffer::reloadBibInfoCache() const
1888 {
1889         // use the master's cache
1890         Buffer const * const tmp = masterBuffer();
1891         if (tmp != this) {
1892                 tmp->reloadBibInfoCache();
1893                 return;
1894         }
1895
1896         checkIfBibInfoCacheIsValid();
1897         if (d->bibinfo_cache_valid_)
1898                 return;
1899
1900         d->bibinfo_.clear();
1901         collectBibKeys();
1902         d->bibinfo_cache_valid_ = true;
1903 }
1904
1905
1906 void Buffer::collectBibKeys() const
1907 {
1908         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it)
1909                 it->collectBibKeys(it);
1910 }
1911
1912
1913 void Buffer::addBiblioInfo(BiblioInfo const & bi) const
1914 {
1915         Buffer const * tmp = masterBuffer();
1916         BiblioInfo & masterbi = (tmp == this) ?
1917                 d->bibinfo_ : tmp->d->bibinfo_;
1918         masterbi.mergeBiblioInfo(bi);
1919 }
1920
1921
1922 void Buffer::addBibTeXInfo(docstring const & key, BibTeXInfo const & bi) const
1923 {
1924         Buffer const * tmp = masterBuffer();
1925         BiblioInfo & masterbi = (tmp == this) ?
1926                 d->bibinfo_ : tmp->d->bibinfo_;
1927         masterbi[key] = bi;
1928 }
1929
1930
1931 bool Buffer::citeLabelsValid() const
1932 {
1933         return masterBuffer()->d->cite_labels_valid_;
1934 }
1935
1936
1937 bool Buffer::isDepClean(string const & name) const
1938 {
1939         DepClean::const_iterator const it = d->dep_clean.find(name);
1940         if (it == d->dep_clean.end())
1941                 return true;
1942         return it->second;
1943 }
1944
1945
1946 void Buffer::markDepClean(string const & name)
1947 {
1948         d->dep_clean[name] = true;
1949 }
1950
1951
1952 bool Buffer::getStatus(FuncRequest const & cmd, FuncStatus & flag)
1953 {
1954         if (isInternal()) {
1955                 // FIXME? if there is an Buffer LFUN that can be dispatched even
1956                 // if internal, put a switch '(cmd.action)' here.
1957                 return false;
1958         }
1959
1960         bool enable = true;
1961
1962         switch (cmd.action()) {
1963
1964                 case LFUN_BUFFER_TOGGLE_READ_ONLY:
1965                         flag.setOnOff(isReadonly());
1966                         break;
1967
1968                 // FIXME: There is need for a command-line import.
1969                 //case LFUN_BUFFER_IMPORT:
1970
1971                 case LFUN_BUFFER_AUTO_SAVE:
1972                         break;
1973
1974                 case LFUN_BUFFER_EXPORT_CUSTOM:
1975                         // FIXME: Nothing to check here?
1976                         break;
1977
1978                 case LFUN_BUFFER_EXPORT: {
1979                         docstring const arg = cmd.argument();
1980                         enable = arg == "custom" || params().isExportable(to_utf8(arg));
1981                         if (!enable)
1982                                 flag.message(bformat(
1983                                         _("Don't know how to export to format: %1$s"), arg));
1984                         break;
1985                 }
1986
1987                 case LFUN_BUFFER_CHKTEX:
1988                         enable = params().isLatex() && !lyxrc.chktex_command.empty();
1989                         break;
1990
1991                 case LFUN_BUILD_PROGRAM:
1992                         enable = params().isExportable("program");
1993                         break;
1994
1995                 case LFUN_BRANCH_ACTIVATE:
1996                 case LFUN_BRANCH_DEACTIVATE: {
1997                         BranchList const & branchList = params().branchlist();
1998                         docstring const branchName = cmd.argument();
1999                         enable = !branchName.empty() && branchList.find(branchName);
2000                         break;
2001                 }
2002
2003                 case LFUN_BRANCH_ADD:
2004                 case LFUN_BRANCHES_RENAME:
2005                 case LFUN_BUFFER_PRINT:
2006                         // if no Buffer is present, then of course we won't be called!
2007                         break;
2008
2009                 case LFUN_BUFFER_LANGUAGE:
2010                         enable = !isReadonly();
2011                         break;
2012
2013                 default:
2014                         return false;
2015         }
2016         flag.setEnabled(enable);
2017         return true;
2018 }
2019
2020
2021 void Buffer::dispatch(string const & command, DispatchResult & result)
2022 {
2023         return dispatch(lyxaction.lookupFunc(command), result);
2024 }
2025
2026
2027 // NOTE We can end up here even if we have no GUI, because we are called
2028 // by LyX::exec to handled command-line requests. So we may need to check
2029 // whether we have a GUI or not. The boolean use_gui holds this information.
2030 void Buffer::dispatch(FuncRequest const & func, DispatchResult & dr)
2031 {
2032         if (isInternal()) {
2033                 // FIXME? if there is an Buffer LFUN that can be dispatched even
2034                 // if internal, put a switch '(cmd.action())' here.
2035                 dr.dispatched(false);
2036                 return;
2037         }
2038         string const argument = to_utf8(func.argument());
2039         // We'll set this back to false if need be.
2040         bool dispatched = true;
2041         undo().beginUndoGroup();
2042
2043         switch (func.action()) {
2044         case LFUN_BUFFER_TOGGLE_READ_ONLY:
2045                 if (lyxvc().inUse())
2046                         lyxvc().toggleReadOnly();
2047                 else
2048                         setReadonly(!isReadonly());
2049                 break;
2050
2051         case LFUN_BUFFER_EXPORT: {
2052                 bool success = doExport(argument, false, false);
2053                 dr.setError(!success);
2054                 if (!success)
2055                         dr.setMessage(bformat(_("Error exporting to format: %1$s."),
2056                                               func.argument()));
2057                 break;
2058         }
2059
2060         case LFUN_BUILD_PROGRAM:
2061                 doExport("program", true, false);
2062                 break;
2063
2064         case LFUN_BUFFER_CHKTEX:
2065                 runChktex();
2066                 break;
2067
2068         case LFUN_BUFFER_EXPORT_CUSTOM: {
2069                 string format_name;
2070                 string command = split(argument, format_name, ' ');
2071                 Format const * format = formats.getFormat(format_name);
2072                 if (!format) {
2073                         lyxerr << "Format \"" << format_name
2074                                 << "\" not recognized!"
2075                                 << endl;
2076                         break;
2077                 }
2078
2079                 // The name of the file created by the conversion process
2080                 string filename;
2081
2082                 // Output to filename
2083                 if (format->name() == "lyx") {
2084                         string const latexname = latexName(false);
2085                         filename = changeExtension(latexname,
2086                                 format->extension());
2087                         filename = addName(temppath(), filename);
2088
2089                         if (!writeFile(FileName(filename)))
2090                                 break;
2091
2092                 } else {
2093                         doExport(format_name, true, false, filename);
2094                 }
2095
2096                 // Substitute $$FName for filename
2097                 if (!contains(command, "$$FName"))
2098                         command = "( " + command + " ) < $$FName";
2099                 command = subst(command, "$$FName", filename);
2100
2101                 // Execute the command in the background
2102                 Systemcall call;
2103                 call.startscript(Systemcall::DontWait, command, filePath());
2104                 break;
2105         }
2106
2107         // FIXME: There is need for a command-line import.
2108         /*
2109         case LFUN_BUFFER_IMPORT:
2110                 doImport(argument);
2111                 break;
2112         */
2113
2114         case LFUN_BUFFER_AUTO_SAVE:
2115                 autoSave();
2116                 resetAutosaveTimers();
2117                 break;
2118
2119         case LFUN_BRANCH_ADD: {
2120                 docstring branch_name = func.argument();
2121                 if (branch_name.empty()) {
2122                         dispatched = false;
2123                         break;
2124                 }
2125                 BranchList & branch_list = params().branchlist();
2126                 vector<docstring> const branches =
2127                         getVectorFromString(branch_name, branch_list.separator());
2128                 docstring msg;
2129                 for (vector<docstring>::const_iterator it = branches.begin();
2130                      it != branches.end(); ++it) {
2131                         branch_name = *it;
2132                         Branch * branch = branch_list.find(branch_name);
2133                         if (branch) {
2134                                 LYXERR0("Branch " << branch_name << " already exists.");
2135                                 dr.setError(true);
2136                                 if (!msg.empty())
2137                                         msg += ("\n");
2138                                 msg += bformat(_("Branch \"%1$s\" already exists."), branch_name);
2139                         } else {
2140                                 branch_list.add(branch_name);
2141                                 branch = branch_list.find(branch_name);
2142                                 string const x11hexname = X11hexname(branch->color());
2143                                 docstring const str = branch_name + ' ' + from_ascii(x11hexname);
2144                                 lyx::dispatch(FuncRequest(LFUN_SET_COLOR, str));
2145                                 dr.setError(false);
2146                                 dr.screenUpdate(Update::Force);
2147                         }
2148                 }
2149                 if (!msg.empty())
2150                         dr.setMessage(msg);
2151                 break;
2152         }
2153
2154         case LFUN_BRANCH_ACTIVATE:
2155         case LFUN_BRANCH_DEACTIVATE: {
2156                 BranchList & branchList = params().branchlist();
2157                 docstring const branchName = func.argument();
2158                 // the case without a branch name is handled elsewhere
2159                 if (branchName.empty()) {
2160                         dispatched = false;
2161                         break;
2162                 }
2163                 Branch * branch = branchList.find(branchName);
2164                 if (!branch) {
2165                         LYXERR0("Branch " << branchName << " does not exist.");
2166                         dr.setError(true);
2167                         docstring const msg =
2168                                 bformat(_("Branch \"%1$s\" does not exist."), branchName);
2169                         dr.setMessage(msg);
2170                 } else {
2171                         branch->setSelected(func.action() == LFUN_BRANCH_ACTIVATE);
2172                         dr.setError(false);
2173                         dr.screenUpdate(Update::Force);
2174                         dr.forceBufferUpdate();
2175                 }
2176                 break;
2177         }
2178
2179         case LFUN_BRANCHES_RENAME: {
2180                 if (func.argument().empty())
2181                         break;
2182
2183                 docstring const oldname = from_utf8(func.getArg(0));
2184                 docstring const newname = from_utf8(func.getArg(1));
2185                 InsetIterator it  = inset_iterator_begin(inset());
2186                 InsetIterator const end = inset_iterator_end(inset());
2187                 bool success = false;
2188                 for (; it != end; ++it) {
2189                         if (it->lyxCode() == BRANCH_CODE) {
2190                                 InsetBranch & ins = static_cast<InsetBranch &>(*it);
2191                                 if (ins.branch() == oldname) {
2192                                         undo().recordUndo(it);
2193                                         ins.rename(newname);
2194                                         success = true;
2195                                         continue;
2196                                 }
2197                         }
2198                         if (it->lyxCode() == INCLUDE_CODE) {
2199                                 // get buffer of external file
2200                                 InsetInclude const & ins =
2201                                         static_cast<InsetInclude const &>(*it);
2202                                 Buffer * child = ins.getChildBuffer();
2203                                 if (!child)
2204                                         continue;
2205                                 child->dispatch(func, dr);
2206                         }
2207                 }
2208
2209                 if (success) {
2210                         dr.screenUpdate(Update::Force);
2211                         dr.forceBufferUpdate();
2212                 }
2213                 break;
2214         }
2215
2216         case LFUN_BUFFER_PRINT: {
2217                 // we'll assume there's a problem until we succeed
2218                 dr.setError(true);
2219                 string target = func.getArg(0);
2220                 string target_name = func.getArg(1);
2221                 string command = func.getArg(2);
2222
2223                 if (target.empty()
2224                     || target_name.empty()
2225                     || command.empty()) {
2226                         LYXERR0("Unable to parse " << func.argument());
2227                         docstring const msg =
2228                                 bformat(_("Unable to parse \"%1$s\""), func.argument());
2229                         dr.setMessage(msg);
2230                         break;
2231                 }
2232                 if (target != "printer" && target != "file") {
2233                         LYXERR0("Unrecognized target \"" << target << '"');
2234                         docstring const msg =
2235                                 bformat(_("Unrecognized target \"%1$s\""), from_utf8(target));
2236                         dr.setMessage(msg);
2237                         break;
2238                 }
2239
2240                 bool const update_unincluded =
2241                                 params().maintain_unincluded_children
2242                                 && !params().getIncludedChildren().empty();
2243                 if (!doExport("dvi", true, update_unincluded)) {
2244                         showPrintError(absFileName());
2245                         dr.setMessage(_("Error exporting to DVI."));
2246                         break;
2247                 }
2248
2249                 // Push directory path.
2250                 string const path = temppath();
2251                 // Prevent the compiler from optimizing away p
2252                 FileName pp(path);
2253                 PathChanger p(pp);
2254
2255                 // there are three cases here:
2256                 // 1. we print to a file
2257                 // 2. we print directly to a printer
2258                 // 3. we print using a spool command (print to file first)
2259                 Systemcall one;
2260                 int res = 0;
2261                 string const dviname = changeExtension(latexName(true), "dvi");
2262
2263                 if (target == "printer") {
2264                         if (!lyxrc.print_spool_command.empty()) {
2265                                 // case 3: print using a spool
2266                                 string const psname = changeExtension(dviname,".ps");
2267                                 command += ' ' + lyxrc.print_to_file
2268                                         + quoteName(psname)
2269                                         + ' '
2270                                         + quoteName(dviname);
2271
2272                                 string command2 = lyxrc.print_spool_command + ' ';
2273                                 if (target_name != "default") {
2274                                         command2 += lyxrc.print_spool_printerprefix
2275                                                 + target_name
2276                                                 + ' ';
2277                                 }
2278                                 command2 += quoteName(psname);
2279                                 // First run dvips.
2280                                 // If successful, then spool command
2281                                 res = one.startscript(Systemcall::Wait, command,
2282                                                       filePath());
2283
2284                                 if (res == 0) {
2285                                         // If there's no GUI, we have to wait on this command. Otherwise,
2286                                         // LyX deletes the temporary directory, and with it the spooled
2287                                         // file, before it can be printed!!
2288                                         Systemcall::Starttype stype = use_gui ?
2289                                                 Systemcall::DontWait : Systemcall::Wait;
2290                                         res = one.startscript(stype, command2,
2291                                                               filePath());
2292                                 }
2293                         } else {
2294                                 // case 2: print directly to a printer
2295                                 if (target_name != "default")
2296                                         command += ' ' + lyxrc.print_to_printer + target_name + ' ';
2297                                 // as above....
2298                                 Systemcall::Starttype stype = use_gui ?
2299                                         Systemcall::DontWait : Systemcall::Wait;
2300                                 res = one.startscript(stype, command +
2301                                                 quoteName(dviname), filePath());
2302                         }
2303
2304                 } else {
2305                         // case 1: print to a file
2306                         FileName const filename(makeAbsPath(target_name, filePath()));
2307                         FileName const dvifile(makeAbsPath(dviname, path));
2308                         if (filename.exists()) {
2309                                 docstring text = bformat(
2310                                         _("The file %1$s already exists.\n\n"
2311                                           "Do you want to overwrite that file?"),
2312                                         makeDisplayPath(filename.absFileName()));
2313                                 if (Alert::prompt(_("Overwrite file?"),
2314                                                   text, 0, 1, _("&Overwrite"), _("&Cancel")) != 0)
2315                                         break;
2316                         }
2317                         command += ' ' + lyxrc.print_to_file
2318                                 + quoteName(filename.toFilesystemEncoding())
2319                                 + ' '
2320                                 + quoteName(dvifile.toFilesystemEncoding());
2321                         // as above....
2322                         Systemcall::Starttype stype = use_gui ?
2323                                 Systemcall::DontWait : Systemcall::Wait;
2324                         res = one.startscript(stype, command, filePath());
2325                 }
2326
2327                 if (res == 0)
2328                         dr.setError(false);
2329                 else {
2330                         dr.setMessage(_("Error running external commands."));
2331                         showPrintError(absFileName());
2332                 }
2333                 break;
2334         }
2335
2336         case LFUN_BUFFER_LANGUAGE: {
2337                 Language const * oldL = params().language;
2338                 Language const * newL = languages.getLanguage(argument);
2339                 if (!newL || oldL == newL)
2340                         break;
2341                 if (oldL->rightToLeft() == newL->rightToLeft() && !isMultiLingual()) {
2342                         changeLanguage(oldL, newL);
2343                         dr.forceBufferUpdate();
2344                 }
2345                 break;
2346         }
2347
2348         default:
2349                 dispatched = false;
2350                 break;
2351         }
2352         dr.dispatched(dispatched);
2353         undo().endUndoGroup();
2354 }
2355
2356
2357 void Buffer::changeLanguage(Language const * from, Language const * to)
2358 {
2359         LASSERT(from, /**/);
2360         LASSERT(to, /**/);
2361
2362         for_each(par_iterator_begin(),
2363                  par_iterator_end(),
2364                  bind(&Paragraph::changeLanguage, _1, params(), from, to));
2365 }
2366
2367
2368 bool Buffer::isMultiLingual() const
2369 {
2370         ParConstIterator end = par_iterator_end();
2371         for (ParConstIterator it = par_iterator_begin(); it != end; ++it)
2372                 if (it->isMultiLingual(params()))
2373                         return true;
2374
2375         return false;
2376 }
2377
2378
2379 std::set<Language const *> Buffer::getLanguages() const
2380 {
2381         std::set<Language const *> languages;
2382         getLanguages(languages);
2383         return languages;
2384 }
2385
2386
2387 void Buffer::getLanguages(std::set<Language const *> & languages) const
2388 {
2389         ParConstIterator end = par_iterator_end();
2390         // add the buffer language, even if it's not actively used
2391         languages.insert(language());
2392         // iterate over the paragraphs
2393         for (ParConstIterator it = par_iterator_begin(); it != end; ++it)
2394                 it->getLanguages(languages);
2395         // also children
2396         ListOfBuffers clist = getDescendents();
2397         ListOfBuffers::const_iterator cit = clist.begin();
2398         ListOfBuffers::const_iterator const cen = clist.end();
2399         for (; cit != cen; ++cit)
2400                 (*cit)->getLanguages(languages);
2401 }
2402
2403
2404 DocIterator Buffer::getParFromID(int const id) const
2405 {
2406         Buffer * buf = const_cast<Buffer *>(this);
2407         if (id < 0) {
2408                 // John says this is called with id == -1 from undo
2409                 lyxerr << "getParFromID(), id: " << id << endl;
2410                 return doc_iterator_end(buf);
2411         }
2412
2413         for (DocIterator it = doc_iterator_begin(buf); !it.atEnd(); it.forwardPar())
2414                 if (it.paragraph().id() == id)
2415                         return it;
2416
2417         return doc_iterator_end(buf);
2418 }
2419
2420
2421 bool Buffer::hasParWithID(int const id) const
2422 {
2423         return !getParFromID(id).atEnd();
2424 }
2425
2426
2427 ParIterator Buffer::par_iterator_begin()
2428 {
2429         return ParIterator(doc_iterator_begin(this));
2430 }
2431
2432
2433 ParIterator Buffer::par_iterator_end()
2434 {
2435         return ParIterator(doc_iterator_end(this));
2436 }
2437
2438
2439 ParConstIterator Buffer::par_iterator_begin() const
2440 {
2441         return ParConstIterator(doc_iterator_begin(this));
2442 }
2443
2444
2445 ParConstIterator Buffer::par_iterator_end() const
2446 {
2447         return ParConstIterator(doc_iterator_end(this));
2448 }
2449
2450
2451 Language const * Buffer::language() const
2452 {
2453         return params().language;
2454 }
2455
2456
2457 docstring const Buffer::B_(string const & l10n) const
2458 {
2459         return params().B_(l10n);
2460 }
2461
2462
2463 bool Buffer::isClean() const
2464 {
2465         return d->lyx_clean;
2466 }
2467
2468
2469 bool Buffer::isExternallyModified(CheckMethod method) const
2470 {
2471         LASSERT(d->filename.exists(), /**/);
2472         // if method == timestamp, check timestamp before checksum
2473         return (method == checksum_method
2474                 || d->timestamp_ != d->filename.lastModified())
2475                 && d->checksum_ != d->filename.checksum();
2476 }
2477
2478
2479 void Buffer::saveCheckSum() const
2480 {
2481         FileName const & file = d->filename;
2482
2483         file.refresh();
2484         if (file.exists()) {
2485                 d->timestamp_ = file.lastModified();
2486                 d->checksum_ = file.checksum();
2487         } else {
2488                 // in the case of save to a new file.
2489                 d->timestamp_ = 0;
2490                 d->checksum_ = 0;
2491         }
2492 }
2493
2494
2495 void Buffer::markClean() const
2496 {
2497         if (!d->lyx_clean) {
2498                 d->lyx_clean = true;
2499                 updateTitles();
2500         }
2501         // if the .lyx file has been saved, we don't need an
2502         // autosave
2503         d->bak_clean = true;
2504         d->undo_.markDirty();
2505 }
2506
2507
2508 void Buffer::setUnnamed(bool flag)
2509 {
2510         d->unnamed = flag;
2511 }
2512
2513
2514 bool Buffer::isUnnamed() const
2515 {
2516         return d->unnamed;
2517 }
2518
2519
2520 /// \note
2521 /// Don't check unnamed, here: isInternal() is used in
2522 /// newBuffer(), where the unnamed flag has not been set by anyone
2523 /// yet. Also, for an internal buffer, there should be no need for
2524 /// retrieving fileName() nor for checking if it is unnamed or not.
2525 bool Buffer::isInternal() const
2526 {
2527         return fileName().extension() == "internal";
2528 }
2529
2530
2531 void Buffer::markDirty()
2532 {
2533         if (d->lyx_clean) {
2534                 d->lyx_clean = false;
2535                 updateTitles();
2536         }
2537         d->bak_clean = false;
2538
2539         DepClean::iterator it = d->dep_clean.begin();
2540         DepClean::const_iterator const end = d->dep_clean.end();
2541
2542         for (; it != end; ++it)
2543                 it->second = false;
2544 }
2545
2546
2547 FileName Buffer::fileName() const
2548 {
2549         return d->filename;
2550 }
2551
2552
2553 string Buffer::absFileName() const
2554 {
2555         return d->filename.absFileName();
2556 }
2557
2558
2559 string Buffer::filePath() const
2560 {
2561         return d->filename.onlyPath().absFileName() + "/";
2562 }
2563
2564
2565 bool Buffer::isReadonly() const
2566 {
2567         return d->read_only;
2568 }
2569
2570
2571 void Buffer::setParent(Buffer const * buffer)
2572 {
2573         // Avoids recursive include.
2574         d->setParent(buffer == this ? 0 : buffer);
2575         updateMacros();
2576 }
2577
2578
2579 Buffer const * Buffer::parent() const
2580 {
2581         return d->parent();
2582 }
2583
2584
2585 ListOfBuffers Buffer::allRelatives() const
2586 {
2587         ListOfBuffers lb = masterBuffer()->getDescendents();
2588         lb.push_front(const_cast<Buffer *>(masterBuffer()));
2589         return lb;
2590 }
2591
2592
2593 Buffer const * Buffer::masterBuffer() const
2594 {
2595         // FIXME Should be make sure we are not in some kind
2596         // of recursive include? A -> B -> A will crash this.
2597         Buffer const * const pbuf = d->parent();
2598         if (!pbuf)
2599                 return this;
2600
2601         return pbuf->masterBuffer();
2602 }
2603
2604
2605 bool Buffer::isChild(Buffer * child) const
2606 {
2607         return d->children_positions.find(child) != d->children_positions.end();
2608 }
2609
2610
2611 DocIterator Buffer::firstChildPosition(Buffer const * child)
2612 {
2613         Impl::BufferPositionMap::iterator it;
2614         it = d->children_positions.find(child);
2615         if (it == d->children_positions.end())
2616                 return DocIterator(this);
2617         return it->second;
2618 }
2619
2620
2621 bool Buffer::hasChildren() const
2622 {
2623         return !d->children_positions.empty();
2624 }
2625
2626
2627 void Buffer::collectChildren(ListOfBuffers & clist, bool grand_children) const
2628 {
2629         // loop over children
2630         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
2631         Impl::BufferPositionMap::iterator end = d->children_positions.end();
2632         for (; it != end; ++it) {
2633                 Buffer * child = const_cast<Buffer *>(it->first);
2634                 // No duplicates
2635                 ListOfBuffers::const_iterator bit = find(clist.begin(), clist.end(), child);
2636                 if (bit != clist.end())
2637                         continue;
2638                 clist.push_back(child);
2639                 if (grand_children)
2640                         // there might be grandchildren
2641                         child->collectChildren(clist, true);
2642         }
2643 }
2644
2645
2646 ListOfBuffers Buffer::getChildren() const
2647 {
2648         ListOfBuffers v;
2649         collectChildren(v, false);
2650         return v;
2651 }
2652
2653
2654 ListOfBuffers Buffer::getDescendents() const
2655 {
2656         ListOfBuffers v;
2657         collectChildren(v, true);
2658         return v;
2659 }
2660
2661
2662 template<typename M>
2663 typename M::const_iterator greatest_below(M & m, typename M::key_type const & x)
2664 {
2665         if (m.empty())
2666                 return m.end();
2667
2668         typename M::const_iterator it = m.lower_bound(x);
2669         if (it == m.begin())
2670                 return m.end();
2671
2672         it--;
2673         return it;
2674 }
2675
2676
2677 MacroData const * Buffer::Impl::getBufferMacro(docstring const & name,
2678                                          DocIterator const & pos) const
2679 {
2680         LYXERR(Debug::MACROS, "Searching for " << to_ascii(name) << " at " << pos);
2681
2682         // if paragraphs have no macro context set, pos will be empty
2683         if (pos.empty())
2684                 return 0;
2685
2686         // we haven't found anything yet
2687         DocIterator bestPos = owner_->par_iterator_begin();
2688         MacroData const * bestData = 0;
2689
2690         // find macro definitions for name
2691         NamePositionScopeMacroMap::const_iterator nameIt = macros.find(name);
2692         if (nameIt != macros.end()) {
2693                 // find last definition in front of pos or at pos itself
2694                 PositionScopeMacroMap::const_iterator it
2695                         = greatest_below(nameIt->second, pos);
2696                 if (it != nameIt->second.end()) {
2697                         while (true) {
2698                                 // scope ends behind pos?
2699                                 if (pos < it->second.first) {
2700                                         // Looks good, remember this. If there
2701                                         // is no external macro behind this,
2702                                         // we found the right one already.
2703                                         bestPos = it->first;
2704                                         bestData = &it->second.second;
2705                                         break;
2706                                 }
2707
2708                                 // try previous macro if there is one
2709                                 if (it == nameIt->second.begin())
2710                                         break;
2711                                 it--;
2712                         }
2713                 }
2714         }
2715
2716         // find macros in included files
2717         PositionScopeBufferMap::const_iterator it
2718                 = greatest_below(position_to_children, pos);
2719         if (it == position_to_children.end())
2720                 // no children before
2721                 return bestData;
2722
2723         while (true) {
2724                 // do we know something better (i.e. later) already?
2725                 if (it->first < bestPos )
2726                         break;
2727
2728                 // scope ends behind pos?
2729                 if (pos < it->second.first
2730                         && (cloned_buffer_ ||
2731                             theBufferList().isLoaded(it->second.second))) {
2732                         // look for macro in external file
2733                         macro_lock = true;
2734                         MacroData const * data
2735                                 = it->second.second->getMacro(name, false);
2736                         macro_lock = false;
2737                         if (data) {
2738                                 bestPos = it->first;
2739                                 bestData = data;
2740                                 break;
2741                         }
2742                 }
2743
2744                 // try previous file if there is one
2745                 if (it == position_to_children.begin())
2746                         break;
2747                 --it;
2748         }
2749
2750         // return the best macro we have found
2751         return bestData;
2752 }
2753
2754
2755 MacroData const * Buffer::getMacro(docstring const & name,
2756         DocIterator const & pos, bool global) const
2757 {
2758         if (d->macro_lock)
2759                 return 0;
2760
2761         // query buffer macros
2762         MacroData const * data = d->getBufferMacro(name, pos);
2763         if (data != 0)
2764                 return data;
2765
2766         // If there is a master buffer, query that
2767         Buffer const * const pbuf = d->parent();
2768         if (pbuf) {
2769                 d->macro_lock = true;
2770                 MacroData const * macro = pbuf->getMacro(
2771                         name, *this, false);
2772                 d->macro_lock = false;
2773                 if (macro)
2774                         return macro;
2775         }
2776
2777         if (global) {
2778                 data = MacroTable::globalMacros().get(name);
2779                 if (data != 0)
2780                         return data;
2781         }
2782
2783         return 0;
2784 }
2785
2786
2787 MacroData const * Buffer::getMacro(docstring const & name, bool global) const
2788 {
2789         // set scope end behind the last paragraph
2790         DocIterator scope = par_iterator_begin();
2791         scope.pit() = scope.lastpit() + 1;
2792
2793         return getMacro(name, scope, global);
2794 }
2795
2796
2797 MacroData const * Buffer::getMacro(docstring const & name,
2798         Buffer const & child, bool global) const
2799 {
2800         // look where the child buffer is included first
2801         Impl::BufferPositionMap::iterator it = d->children_positions.find(&child);
2802         if (it == d->children_positions.end())
2803                 return 0;
2804
2805         // check for macros at the inclusion position
2806         return getMacro(name, it->second, global);
2807 }
2808
2809
2810 void Buffer::Impl::updateMacros(DocIterator & it, DocIterator & scope)
2811 {
2812         pit_type const lastpit = it.lastpit();
2813
2814         // look for macros in each paragraph
2815         while (it.pit() <= lastpit) {
2816                 Paragraph & par = it.paragraph();
2817
2818                 // iterate over the insets of the current paragraph
2819                 InsetList const & insets = par.insetList();
2820                 InsetList::const_iterator iit = insets.begin();
2821                 InsetList::const_iterator end = insets.end();
2822                 for (; iit != end; ++iit) {
2823                         it.pos() = iit->pos;
2824
2825                         // is it a nested text inset?
2826                         if (iit->inset->asInsetText()) {
2827                                 // Inset needs its own scope?
2828                                 InsetText const * itext = iit->inset->asInsetText();
2829                                 bool newScope = itext->isMacroScope();
2830
2831                                 // scope which ends just behind the inset
2832                                 DocIterator insetScope = it;
2833                                 ++insetScope.pos();
2834
2835                                 // collect macros in inset
2836                                 it.push_back(CursorSlice(*iit->inset));
2837                                 updateMacros(it, newScope ? insetScope : scope);
2838                                 it.pop_back();
2839                                 continue;
2840                         }
2841
2842                         if (iit->inset->asInsetTabular()) {
2843                                 CursorSlice slice(*iit->inset);
2844                                 size_t const numcells = slice.nargs();
2845                                 for (; slice.idx() < numcells; slice.forwardIdx()) {
2846                                         it.push_back(slice);
2847                                         updateMacros(it, scope);
2848                                         it.pop_back();
2849                                 }
2850                                 continue;
2851                         }
2852
2853                         // is it an external file?
2854                         if (iit->inset->lyxCode() == INCLUDE_CODE) {
2855                                 // get buffer of external file
2856                                 InsetInclude const & inset =
2857                                         static_cast<InsetInclude const &>(*iit->inset);
2858                                 macro_lock = true;
2859                                 Buffer * child = inset.getChildBuffer();
2860                                 macro_lock = false;
2861                                 if (!child)
2862                                         continue;
2863
2864                                 // register its position, but only when it is
2865                                 // included first in the buffer
2866                                 if (children_positions.find(child) ==
2867                                         children_positions.end())
2868                                                 children_positions[child] = it;
2869
2870                                 // register child with its scope
2871                                 position_to_children[it] = Impl::ScopeBuffer(scope, child);
2872                                 continue;
2873                         }
2874
2875                         InsetMath * im = iit->inset->asInsetMath();
2876                         if (doing_export && im)  {
2877                                 InsetMathHull * hull = im->asHullInset();
2878                                 if (hull)
2879                                         hull->recordLocation(it);
2880                         }
2881
2882                         if (iit->inset->lyxCode() != MATHMACRO_CODE)
2883                                 continue;
2884
2885                         // get macro data
2886                         MathMacroTemplate & macroTemplate =
2887                                 *iit->inset->asInsetMath()->asMacroTemplate();
2888                         MacroContext mc(owner_, it);
2889                         macroTemplate.updateToContext(mc);
2890
2891                         // valid?
2892                         bool valid = macroTemplate.validMacro();
2893                         // FIXME: Should be fixNameAndCheckIfValid() in fact,
2894                         // then the BufferView's cursor will be invalid in
2895                         // some cases which leads to crashes.
2896                         if (!valid)
2897                                 continue;
2898
2899                         // register macro
2900                         // FIXME (Abdel), I don't understandt why we pass 'it' here
2901                         // instead of 'macroTemplate' defined above... is this correct?
2902                         macros[macroTemplate.name()][it] =
2903                                 Impl::ScopeMacro(scope, MacroData(const_cast<Buffer *>(owner_), it));
2904                 }
2905
2906                 // next paragraph
2907                 it.pit()++;
2908                 it.pos() = 0;
2909         }
2910 }
2911
2912
2913 void Buffer::updateMacros() const
2914 {
2915         if (d->macro_lock)
2916                 return;
2917
2918         LYXERR(Debug::MACROS, "updateMacro of " << d->filename.onlyFileName());
2919
2920         // start with empty table
2921         d->macros.clear();
2922         d->children_positions.clear();
2923         d->position_to_children.clear();
2924
2925         // Iterate over buffer, starting with first paragraph
2926         // The scope must be bigger than any lookup DocIterator
2927         // later. For the global lookup, lastpit+1 is used, hence
2928         // we use lastpit+2 here.
2929         DocIterator it = par_iterator_begin();
2930         DocIterator outerScope = it;
2931         outerScope.pit() = outerScope.lastpit() + 2;
2932         d->updateMacros(it, outerScope);
2933 }
2934
2935
2936 void Buffer::getUsedBranches(std::list<docstring> & result, bool const from_master) const
2937 {
2938         InsetIterator it  = inset_iterator_begin(inset());
2939         InsetIterator const end = inset_iterator_end(inset());
2940         for (; it != end; ++it) {
2941                 if (it->lyxCode() == BRANCH_CODE) {
2942                         InsetBranch & br = static_cast<InsetBranch &>(*it);
2943                         docstring const name = br.branch();
2944                         if (!from_master && !params().branchlist().find(name))
2945                                 result.push_back(name);
2946                         else if (from_master && !masterBuffer()->params().branchlist().find(name))
2947                                 result.push_back(name);
2948                         continue;
2949                 }
2950                 if (it->lyxCode() == INCLUDE_CODE) {
2951                         // get buffer of external file
2952                         InsetInclude const & ins =
2953                                 static_cast<InsetInclude const &>(*it);
2954                         Buffer * child = ins.getChildBuffer();
2955                         if (!child)
2956                                 continue;
2957                         child->getUsedBranches(result, true);
2958                 }
2959         }
2960         // remove duplicates
2961         result.unique();
2962 }
2963
2964
2965 void Buffer::updateMacroInstances(UpdateType utype) const
2966 {
2967         LYXERR(Debug::MACROS, "updateMacroInstances for "
2968                 << d->filename.onlyFileName());
2969         DocIterator it = doc_iterator_begin(this);
2970         it.forwardInset();
2971         DocIterator const end = doc_iterator_end(this);
2972         for (; it != end; it.forwardInset()) {
2973                 // look for MathData cells in InsetMathNest insets
2974                 InsetMath * minset = it.nextInset()->asInsetMath();
2975                 if (!minset)
2976                         continue;
2977
2978                 // update macro in all cells of the InsetMathNest
2979                 DocIterator::idx_type n = minset->nargs();
2980                 MacroContext mc = MacroContext(this, it);
2981                 for (DocIterator::idx_type i = 0; i < n; ++i) {
2982                         MathData & data = minset->cell(i);
2983                         data.updateMacros(0, mc, utype);
2984                 }
2985         }
2986 }
2987
2988
2989 void Buffer::listMacroNames(MacroNameSet & macros) const
2990 {
2991         if (d->macro_lock)
2992                 return;
2993
2994         d->macro_lock = true;
2995
2996         // loop over macro names
2997         Impl::NamePositionScopeMacroMap::iterator nameIt = d->macros.begin();
2998         Impl::NamePositionScopeMacroMap::iterator nameEnd = d->macros.end();
2999         for (; nameIt != nameEnd; ++nameIt)
3000                 macros.insert(nameIt->first);
3001
3002         // loop over children
3003         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
3004         Impl::BufferPositionMap::iterator end = d->children_positions.end();
3005         for (; it != end; ++it)
3006                 it->first->listMacroNames(macros);
3007
3008         // call parent
3009         Buffer const * const pbuf = d->parent();
3010         if (pbuf)
3011                 pbuf->listMacroNames(macros);
3012
3013         d->macro_lock = false;
3014 }
3015
3016
3017 void Buffer::listParentMacros(MacroSet & macros, LaTeXFeatures & features) const
3018 {
3019         Buffer const * const pbuf = d->parent();
3020         if (!pbuf)
3021                 return;
3022
3023         MacroNameSet names;
3024         pbuf->listMacroNames(names);
3025
3026         // resolve macros
3027         MacroNameSet::iterator it = names.begin();
3028         MacroNameSet::iterator end = names.end();
3029         for (; it != end; ++it) {
3030                 // defined?
3031                 MacroData const * data =
3032                 pbuf->getMacro(*it, *this, false);
3033                 if (data) {
3034                         macros.insert(data);
3035
3036                         // we cannot access the original MathMacroTemplate anymore
3037                         // here to calls validate method. So we do its work here manually.
3038                         // FIXME: somehow make the template accessible here.
3039                         if (data->optionals() > 0)
3040                                 features.require("xargs");
3041                 }
3042         }
3043 }
3044
3045
3046 Buffer::References & Buffer::references(docstring const & label)
3047 {
3048         if (d->parent())
3049                 return const_cast<Buffer *>(masterBuffer())->references(label);
3050
3051         RefCache::iterator it = d->ref_cache_.find(label);
3052         if (it != d->ref_cache_.end())
3053                 return it->second.second;
3054
3055         static InsetLabel const * dummy_il = 0;
3056         static References const dummy_refs;
3057         it = d->ref_cache_.insert(
3058                 make_pair(label, make_pair(dummy_il, dummy_refs))).first;
3059         return it->second.second;
3060 }
3061
3062
3063 Buffer::References const & Buffer::references(docstring const & label) const
3064 {
3065         return const_cast<Buffer *>(this)->references(label);
3066 }
3067
3068
3069 void Buffer::setInsetLabel(docstring const & label, InsetLabel const * il)
3070 {
3071         masterBuffer()->d->ref_cache_[label].first = il;
3072 }
3073
3074
3075 InsetLabel const * Buffer::insetLabel(docstring const & label) const
3076 {
3077         return masterBuffer()->d->ref_cache_[label].first;
3078 }
3079
3080
3081 void Buffer::clearReferenceCache() const
3082 {
3083         if (!d->parent())
3084                 d->ref_cache_.clear();
3085 }
3086
3087
3088 void Buffer::changeRefsIfUnique(docstring const & from, docstring const & to,
3089         InsetCode code)
3090 {
3091         //FIXME: This does not work for child documents yet.
3092         LASSERT(code == CITE_CODE, /**/);
3093
3094         reloadBibInfoCache();
3095
3096         // Check if the label 'from' appears more than once
3097         BiblioInfo const & keys = masterBibInfo();
3098         BiblioInfo::const_iterator bit  = keys.begin();
3099         BiblioInfo::const_iterator bend = keys.end();
3100         vector<docstring> labels;
3101
3102         for (; bit != bend; ++bit)
3103                 // FIXME UNICODE
3104                 labels.push_back(bit->first);
3105
3106         if (count(labels.begin(), labels.end(), from) > 1)
3107                 return;
3108
3109         string const paramName = "key";
3110         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
3111                 if (it->lyxCode() == code) {
3112                         InsetCommand * inset = it->asInsetCommand();
3113                         if (!inset)
3114                                 continue;
3115                         docstring const oldValue = inset->getParam(paramName);
3116                         if (oldValue == from)
3117                                 inset->setParam(paramName, to);
3118                 }
3119         }
3120 }
3121
3122
3123 void Buffer::getSourceCode(odocstream & os, string const format,
3124                            pit_type par_begin, pit_type par_end,
3125                            bool full_source) const
3126 {
3127         OutputParams runparams(&params().encoding());
3128         runparams.nice = true;
3129         runparams.flavor = params().getOutputFlavor(format);
3130         runparams.linelen = lyxrc.plaintext_linelen;
3131         // No side effect of file copying and image conversion
3132         runparams.dryrun = true;
3133
3134         if (full_source) {
3135                 os << "% " << _("Preview source code") << "\n\n";
3136                 d->texrow.reset();
3137                 d->texrow.newline();
3138                 d->texrow.newline();
3139                 if (params().isDocBook())
3140                         writeDocBookSource(os, absFileName(), runparams, false);
3141                 else if (runparams.flavor == OutputParams::HTML)
3142                         writeLyXHTMLSource(os, runparams, false);
3143                 else {
3144                         // latex or literate
3145                         otexstream ots(os, d->texrow);
3146                         writeLaTeXSource(ots, string(), runparams, true, true);
3147                 }
3148         } else {
3149                 runparams.par_begin = par_begin;
3150                 runparams.par_end = par_end;
3151                 if (par_begin + 1 == par_end) {
3152                         os << "% "
3153                            << bformat(_("Preview source code for paragraph %1$d"), par_begin)
3154                            << "\n\n";
3155                 } else {
3156                         os << "% "
3157                            << bformat(_("Preview source code from paragraph %1$s to %2$s"),
3158                                         convert<docstring>(par_begin),
3159                                         convert<docstring>(par_end - 1))
3160                            << "\n\n";
3161                 }
3162                 TexRow texrow;
3163                 texrow.reset();
3164                 texrow.newline();
3165                 texrow.newline();
3166                 // output paragraphs
3167                 if (params().isDocBook())
3168                         docbookParagraphs(text(), *this, os, runparams);
3169                 else if (runparams.flavor == OutputParams::HTML) {
3170                         XHTMLStream xs(os);
3171                         xhtmlParagraphs(text(), *this, xs, runparams);
3172                 } else {
3173                         // latex or literate
3174                         otexstream ots(os, texrow);
3175                         latexParagraphs(*this, text(), ots, runparams);
3176                 }
3177         }
3178 }
3179
3180
3181 ErrorList & Buffer::errorList(string const & type) const
3182 {
3183         return d->errorLists[type];
3184 }
3185
3186
3187 void Buffer::updateTocItem(std::string const & type,
3188         DocIterator const & dit) const
3189 {
3190         if (d->gui_)
3191                 d->gui_->updateTocItem(type, dit);
3192 }
3193
3194
3195 void Buffer::structureChanged() const
3196 {
3197         if (d->gui_)
3198                 d->gui_->structureChanged();
3199 }
3200
3201
3202 void Buffer::errors(string const & err, bool from_master) const
3203 {
3204         if (d->gui_)
3205                 d->gui_->errors(err, from_master);
3206 }
3207
3208
3209 void Buffer::message(docstring const & msg) const
3210 {
3211         if (d->gui_)
3212                 d->gui_->message(msg);
3213 }
3214
3215
3216 void Buffer::setBusy(bool on) const
3217 {
3218         if (d->gui_)
3219                 d->gui_->setBusy(on);
3220 }
3221
3222
3223 void Buffer::updateTitles() const
3224 {
3225         if (d->wa_)
3226                 d->wa_->updateTitles();
3227 }
3228
3229
3230 void Buffer::resetAutosaveTimers() const
3231 {
3232         if (d->gui_)
3233                 d->gui_->resetAutosaveTimers();
3234 }
3235
3236
3237 bool Buffer::hasGuiDelegate() const
3238 {
3239         return d->gui_;
3240 }
3241
3242
3243 void Buffer::setGuiDelegate(frontend::GuiBufferDelegate * gui)
3244 {
3245         d->gui_ = gui;
3246 }
3247
3248
3249
3250 namespace {
3251
3252 class AutoSaveBuffer : public ForkedProcess {
3253 public:
3254         ///
3255         AutoSaveBuffer(Buffer const & buffer, FileName const & fname)
3256                 : buffer_(buffer), fname_(fname) {}
3257         ///
3258         virtual shared_ptr<ForkedProcess> clone() const
3259         {
3260                 return shared_ptr<ForkedProcess>(new AutoSaveBuffer(*this));
3261         }
3262         ///
3263         int start()
3264         {
3265                 command_ = to_utf8(bformat(_("Auto-saving %1$s"),
3266                                                  from_utf8(fname_.absFileName())));
3267                 return run(DontWait);
3268         }
3269 private:
3270         ///
3271         virtual int generateChild();
3272         ///
3273         Buffer const & buffer_;
3274         FileName fname_;
3275 };
3276
3277
3278 int AutoSaveBuffer::generateChild()
3279 {
3280 #if defined(__APPLE__)
3281         /* FIXME fork() is not usable for autosave on Mac OS X 10.6 (snow leopard)
3282          *   We should use something else like threads.
3283          *
3284          * Since I do not know how to determine at run time what is the OS X
3285          * version, I just disable forking altogether for now (JMarc)
3286          */
3287         pid_t const pid = -1;
3288 #else
3289         // tmp_ret will be located (usually) in /tmp
3290         // will that be a problem?
3291         // Note that this calls ForkedCalls::fork(), so it's
3292         // ok cross-platform.
3293         pid_t const pid = fork();
3294         // If you want to debug the autosave
3295         // you should set pid to -1, and comment out the fork.
3296         if (pid != 0 && pid != -1)
3297                 return pid;
3298 #endif
3299
3300         // pid = -1 signifies that lyx was unable
3301         // to fork. But we will do the save
3302         // anyway.
3303         bool failed = false;
3304         FileName const tmp_ret = FileName::tempName("lyxauto");
3305         if (!tmp_ret.empty()) {
3306                 buffer_.writeFile(tmp_ret);
3307                 // assume successful write of tmp_ret
3308                 if (!tmp_ret.moveTo(fname_))
3309                         failed = true;
3310         } else
3311                 failed = true;
3312
3313         if (failed) {
3314                 // failed to write/rename tmp_ret so try writing direct
3315                 if (!buffer_.writeFile(fname_)) {
3316                         // It is dangerous to do this in the child,
3317                         // but safe in the parent, so...
3318                         if (pid == -1) // emit message signal.
3319                                 buffer_.message(_("Autosave failed!"));
3320                 }
3321         }
3322
3323         if (pid == 0) // we are the child so...
3324                 _exit(0);
3325
3326         return pid;
3327 }
3328
3329 } // namespace anon
3330
3331
3332 FileName Buffer::getEmergencyFileName() const
3333 {
3334         return FileName(d->filename.absFileName() + ".emergency");
3335 }
3336
3337
3338 FileName Buffer::getAutosaveFileName() const
3339 {
3340         // if the document is unnamed try to save in the backup dir, else
3341         // in the default document path, and as a last try in the filePath,
3342         // which will most often be the temporary directory
3343         string fpath;
3344         if (isUnnamed())
3345                 fpath = lyxrc.backupdir_path.empty() ? lyxrc.document_path
3346                         : lyxrc.backupdir_path;
3347         if (!isUnnamed() || fpath.empty() || !FileName(fpath).exists())
3348                 fpath = filePath();
3349
3350         string const fname = "#" + d->filename.onlyFileName() + "#";
3351
3352         return makeAbsPath(fname, fpath);
3353 }
3354
3355
3356 void Buffer::removeAutosaveFile() const
3357 {
3358         FileName const f = getAutosaveFileName();
3359         if (f.exists())
3360                 f.removeFile();
3361 }
3362
3363
3364 void Buffer::moveAutosaveFile(support::FileName const & oldauto) const
3365 {
3366         FileName const newauto = getAutosaveFileName();
3367         oldauto.refresh();
3368         if (newauto != oldauto && oldauto.exists())
3369                 if (!oldauto.moveTo(newauto))
3370                         LYXERR0("Unable to move autosave file `" << oldauto << "'!");
3371 }
3372
3373
3374 bool Buffer::autoSave() const
3375 {
3376         Buffer const * buf = d->cloned_buffer_ ? d->cloned_buffer_ : this;
3377         if (buf->d->bak_clean || isReadonly())
3378                 return true;
3379
3380         message(_("Autosaving current document..."));
3381         buf->d->bak_clean = true;
3382
3383         FileName const fname = getAutosaveFileName();
3384         if (d->cloned_buffer_) {
3385                 // If this buffer is cloned, we assume that
3386                 // we are running in a separate thread already.
3387                 FileName const tmp_ret = FileName::tempName("lyxauto");
3388                 if (!tmp_ret.empty()) {
3389                         writeFile(tmp_ret);
3390                         // assume successful write of tmp_ret
3391                         if (tmp_ret.moveTo(fname))
3392                                 return true;
3393                 }
3394                 // failed to write/rename tmp_ret so try writing direct
3395                 return writeFile(fname);
3396         } else {
3397                 /// This function is deprecated as the frontend needs to take care
3398                 /// of cloning the buffer and autosaving it in another thread. It
3399                 /// is still here to allow (QT_VERSION < 0x040400).
3400                 AutoSaveBuffer autosave(*this, fname);
3401                 autosave.start();
3402                 return true;
3403         }
3404 }
3405
3406
3407 namespace {
3408         // helper class, to guarantee this gets reset properly
3409         class MarkAsExporting   {
3410         public:
3411                 MarkAsExporting(Buffer const * buf) : buf_(buf)
3412                 {
3413                         LASSERT(buf_, /* */);
3414                         buf_->setExportStatus(true);
3415                 }
3416                 ~MarkAsExporting()
3417                 {
3418                         buf_->setExportStatus(false);
3419                 }
3420         private:
3421                 Buffer const * const buf_;
3422         };
3423 }
3424
3425
3426 void Buffer::setExportStatus(bool e) const
3427 {
3428         d->doing_export = e;
3429         ListOfBuffers clist = getDescendents();
3430         ListOfBuffers::const_iterator cit = clist.begin();
3431         ListOfBuffers::const_iterator const cen = clist.end();
3432         for (; cit != cen; ++cit)
3433                 (*cit)->d->doing_export = e;
3434 }
3435
3436
3437 bool Buffer::isExporting() const
3438 {
3439         return d->doing_export;
3440 }
3441
3442
3443 bool Buffer::doExport(string const & format, bool put_in_tempdir,
3444         bool includeall, string & result_file) const
3445 {
3446         MarkAsExporting exporting(this);
3447         string backend_format;
3448         OutputParams runparams(&params().encoding());
3449         runparams.flavor = OutputParams::LATEX;
3450         runparams.linelen = lyxrc.plaintext_linelen;
3451         runparams.includeall = includeall;
3452         vector<string> backs = params().backends();
3453         Converters converters = theConverters();
3454         if (find(backs.begin(), backs.end(), format) == backs.end()) {
3455                 // Get shortest path to format
3456                 converters.buildGraph();
3457                 Graph::EdgePath path;
3458                 for (vector<string>::const_iterator it = backs.begin();
3459                      it != backs.end(); ++it) {
3460                         Graph::EdgePath p = converters.getPath(*it, format);
3461                         if (!p.empty() && (path.empty() || p.size() < path.size())) {
3462                                 backend_format = *it;
3463                                 path = p;
3464                         }
3465                 }
3466                 if (path.empty()) {
3467                         if (!put_in_tempdir) {
3468                                 // Only show this alert if this is an export to a non-temporary
3469                                 // file (not for previewing).
3470                                 Alert::error(_("Couldn't export file"), bformat(
3471                                         _("No information for exporting the format %1$s."),
3472                                         formats.prettyName(format)));
3473                         }
3474                         return false;
3475                 }
3476                 runparams.flavor = converters.getFlavor(path);
3477
3478         } else {
3479                 backend_format = format;
3480                 // FIXME: Don't hardcode format names here, but use a flag
3481                 if (backend_format == "pdflatex")
3482                         runparams.flavor = OutputParams::PDFLATEX;
3483                 else if (backend_format == "luatex")
3484                         runparams.flavor = OutputParams::LUATEX;
3485                 else if (backend_format == "xetex")
3486                         runparams.flavor = OutputParams::XETEX;
3487         }
3488
3489         string filename = latexName(false);
3490         filename = addName(temppath(), filename);
3491         filename = changeExtension(filename,
3492                                    formats.extension(backend_format));
3493
3494         // Plain text backend
3495         if (backend_format == "text") {
3496                 runparams.flavor = OutputParams::TEXT;
3497                 writePlaintextFile(*this, FileName(filename), runparams);
3498         }
3499         // HTML backend
3500         else if (backend_format == "xhtml") {
3501                 runparams.flavor = OutputParams::HTML;
3502                 switch (params().html_math_output) {
3503                 case BufferParams::MathML:
3504                         runparams.math_flavor = OutputParams::MathAsMathML;
3505                         break;
3506                 case BufferParams::HTML:
3507                         runparams.math_flavor = OutputParams::MathAsHTML;
3508                         break;
3509                 case BufferParams::Images:
3510                         runparams.math_flavor = OutputParams::MathAsImages;
3511                         break;
3512                 case BufferParams::LaTeX:
3513                         runparams.math_flavor = OutputParams::MathAsLaTeX;
3514                         break;
3515                 }
3516                 makeLyXHTMLFile(FileName(filename), runparams);
3517         } else if (backend_format == "lyx")
3518                 writeFile(FileName(filename));
3519         // Docbook backend
3520         else if (params().isDocBook()) {
3521                 runparams.nice = !put_in_tempdir;
3522                 makeDocBookFile(FileName(filename), runparams);
3523         }
3524         // LaTeX backend
3525         else if (backend_format == format) {
3526                 runparams.nice = true;
3527                 if (!makeLaTeXFile(FileName(filename), string(), runparams)) {
3528                         if (d->cloned_buffer_) {
3529                                 d->cloned_buffer_->d->errorLists["Export"] =
3530                                         d->errorLists["Export"];
3531                         }
3532                         return false;
3533                 }
3534         } else if (!lyxrc.tex_allows_spaces
3535                    && contains(filePath(), ' ')) {
3536                 Alert::error(_("File name error"),
3537                            _("The directory path to the document cannot contain spaces."));
3538                 return false;
3539         } else {
3540                 runparams.nice = false;
3541                 if (!makeLaTeXFile(FileName(filename), filePath(), runparams)) {
3542                         if (d->cloned_buffer_) {
3543                                 d->cloned_buffer_->d->errorLists["Export"] =
3544                                         d->errorLists["Export"];
3545                         }
3546                         return false;
3547                 }
3548         }
3549
3550         string const error_type = (format == "program")
3551                 ? "Build" : params().bufferFormat();
3552         ErrorList & error_list = d->errorLists[error_type];
3553         string const ext = formats.extension(format);
3554         FileName const tmp_result_file(changeExtension(filename, ext));
3555         bool const success = converters.convert(this, FileName(filename),
3556                 tmp_result_file, FileName(absFileName()), backend_format, format,
3557                 error_list);
3558
3559         // Emit the signal to show the error list or copy it back to the
3560         // cloned Buffer so that it can be emitted afterwards.
3561         if (format != backend_format) {
3562                 if (d->cloned_buffer_) {
3563                         d->cloned_buffer_->d->errorLists[error_type] =
3564                                 d->errorLists[error_type];
3565                 } else
3566                         errors(error_type);
3567                 // also to the children, in case of master-buffer-view
3568                 ListOfBuffers clist = getDescendents();
3569                 ListOfBuffers::const_iterator cit = clist.begin();
3570                 ListOfBuffers::const_iterator const cen = clist.end();
3571                 for (; cit != cen; ++cit) {
3572                         if (d->cloned_buffer_) {
3573                                 // Enable reverse search by copying back the
3574                                 // texrow object to the cloned buffer.
3575                                 // FIXME: this is not thread safe.
3576                                 (*cit)->d->cloned_buffer_->d->texrow = (*cit)->d->texrow;
3577                                 (*cit)->d->cloned_buffer_->d->errorLists[error_type] =
3578                                         (*cit)->d->errorLists[error_type];
3579                         } else
3580                                 (*cit)->errors(error_type, true);
3581                 }
3582         }
3583
3584         if (d->cloned_buffer_) {
3585                 // Enable reverse dvi or pdf to work by copying back the texrow
3586                 // object to the cloned buffer.
3587                 // FIXME: There is a possibility of concurrent access to texrow
3588                 // here from the main GUI thread that should be securized.
3589                 d->cloned_buffer_->d->texrow = d->texrow;
3590                 string const error_type = params().bufferFormat();
3591                 d->cloned_buffer_->d->errorLists[error_type] = d->errorLists[error_type];
3592         }
3593
3594         if (!success)
3595                 return false;
3596
3597         if (put_in_tempdir) {
3598                 result_file = tmp_result_file.absFileName();
3599                 return true;
3600         }
3601
3602         result_file = changeExtension(d->exportFileName().absFileName(), ext);
3603         // We need to copy referenced files (e. g. included graphics
3604         // if format == "dvi") to the result dir.
3605         vector<ExportedFile> const files =
3606                 runparams.exportdata->externalFiles(format);
3607         string const dest = onlyPath(result_file);
3608         bool use_force = use_gui ? lyxrc.export_overwrite == ALL_FILES
3609                                  : force_overwrite == ALL_FILES;
3610         CopyStatus status = use_force ? FORCE : SUCCESS;
3611
3612         vector<ExportedFile>::const_iterator it = files.begin();
3613         vector<ExportedFile>::const_iterator const en = files.end();
3614         for (; it != en && status != CANCEL; ++it) {
3615                 string const fmt = formats.getFormatFromFile(it->sourceName);
3616                 status = copyFile(fmt, it->sourceName,
3617                         makeAbsPath(it->exportName, dest),
3618                         it->exportName, status == FORCE);
3619         }
3620
3621         if (status == CANCEL) {
3622                 message(_("Document export cancelled."));
3623         } else if (tmp_result_file.exists()) {
3624                 // Finally copy the main file
3625                 use_force = use_gui ? lyxrc.export_overwrite != NO_FILES
3626                                     : force_overwrite != NO_FILES;
3627                 if (status == SUCCESS && use_force)
3628                         status = FORCE;
3629                 status = copyFile(format, tmp_result_file,
3630                         FileName(result_file), result_file,
3631                         status == FORCE);
3632                 message(bformat(_("Document exported as %1$s "
3633                         "to file `%2$s'"),
3634                         formats.prettyName(format),
3635                         makeDisplayPath(result_file)));
3636         } else {
3637                 // This must be a dummy converter like fax (bug 1888)
3638                 message(bformat(_("Document exported as %1$s"),
3639                         formats.prettyName(format)));
3640         }
3641
3642         return true;
3643 }
3644
3645
3646 bool Buffer::doExport(string const & format, bool put_in_tempdir,
3647                       bool includeall) const
3648 {
3649         string result_file;
3650         // (1) export with all included children (omit \includeonly)
3651         if (includeall && !doExport(format, put_in_tempdir, true, result_file))
3652                 return false;
3653         // (2) export with included children only
3654         return doExport(format, put_in_tempdir, false, result_file);
3655 }
3656
3657
3658 bool Buffer::preview(string const & format, bool includeall) const
3659 {
3660         MarkAsExporting exporting(this);
3661         string result_file;
3662         // (1) export with all included children (omit \includeonly)
3663         if (includeall && !doExport(format, true, true))
3664                 return false;
3665         // (2) export with included children only
3666         if (!doExport(format, true, false, result_file))
3667                 return false;
3668         return formats.view(*this, FileName(result_file), format);
3669 }
3670
3671
3672 Buffer::ReadStatus Buffer::extractFromVC()
3673 {
3674         bool const found = LyXVC::file_not_found_hook(d->filename);
3675         if (!found)
3676                 return ReadFileNotFound;
3677         if (!d->filename.isReadableFile())
3678                 return ReadVCError;
3679         return ReadSuccess;
3680 }
3681
3682
3683 Buffer::ReadStatus Buffer::loadEmergency()
3684 {
3685         FileName const emergencyFile = getEmergencyFileName();
3686         if (!emergencyFile.exists()
3687                   || emergencyFile.lastModified() <= d->filename.lastModified())
3688                 return ReadFileNotFound;
3689
3690         docstring const file = makeDisplayPath(d->filename.absFileName(), 20);
3691         docstring const text = bformat(_("An emergency save of the document "
3692                 "%1$s exists.\n\nRecover emergency save?"), file);
3693
3694         int const load_emerg = Alert::prompt(_("Load emergency save?"), text,
3695                 0, 2, _("&Recover"), _("&Load Original"), _("&Cancel"));
3696
3697         switch (load_emerg)
3698         {
3699         case 0: {
3700                 docstring str;
3701                 ReadStatus const ret_llf = loadThisLyXFile(emergencyFile);
3702                 bool const success = (ret_llf == ReadSuccess);
3703                 if (success) {
3704                         if (isReadonly()) {
3705                                 Alert::warning(_("File is read-only"),
3706                                         bformat(_("An emergency file is successfully loaded, "
3707                                         "but the original file %1$s is marked read-only. "
3708                                         "Please make sure to save the document as a different "
3709                                         "file."), from_utf8(d->filename.absFileName())));
3710                         }
3711                         markDirty();
3712                         str = _("Document was successfully recovered.");
3713                 } else
3714                         str = _("Document was NOT successfully recovered.");
3715                 str += "\n\n" + bformat(_("Remove emergency file now?\n(%1$s)"),
3716                         makeDisplayPath(emergencyFile.absFileName()));
3717
3718                 int const del_emerg =
3719                         Alert::prompt(_("Delete emergency file?"), str, 1, 1,
3720                                 _("&Remove"), _("&Keep"));
3721                 if (del_emerg == 0) {
3722                         emergencyFile.removeFile();
3723                         if (success)
3724                                 Alert::warning(_("Emergency file deleted"),
3725                                         _("Do not forget to save your file now!"), true);
3726                         }
3727                 return success ? ReadSuccess : ReadEmergencyFailure;
3728         }
3729         case 1: {
3730                 int const del_emerg =
3731                         Alert::prompt(_("Delete emergency file?"),
3732                                 _("Remove emergency file now?"), 1, 1,
3733                                 _("&Remove"), _("&Keep"));
3734                 if (del_emerg == 0)
3735                         emergencyFile.removeFile();
3736                 return ReadOriginal;
3737         }
3738
3739         default:
3740                 break;
3741         }
3742         return ReadCancel;
3743 }
3744
3745
3746 Buffer::ReadStatus Buffer::loadAutosave()
3747 {
3748         // Now check if autosave file is newer.
3749         FileName const autosaveFile = getAutosaveFileName();
3750         if (!autosaveFile.exists()
3751                   || autosaveFile.lastModified() <= d->filename.lastModified())
3752                 return ReadFileNotFound;
3753
3754         docstring const file = makeDisplayPath(d->filename.absFileName(), 20);
3755         docstring const text = bformat(_("The backup of the document %1$s "
3756                 "is newer.\n\nLoad the backup instead?"), file);
3757         int const ret = Alert::prompt(_("Load backup?"), text, 0, 2,
3758                 _("&Load backup"), _("Load &original"), _("&Cancel"));
3759
3760         switch (ret)
3761         {
3762         case 0: {
3763                 ReadStatus const ret_llf = loadThisLyXFile(autosaveFile);
3764                 // the file is not saved if we load the autosave file.
3765                 if (ret_llf == ReadSuccess) {
3766                         if (isReadonly()) {
3767                                 Alert::warning(_("File is read-only"),
3768                                         bformat(_("A backup file is successfully loaded, "
3769                                         "but the original file %1$s is marked read-only. "
3770                                         "Please make sure to save the document as a "
3771                                         "different file."),
3772                                         from_utf8(d->filename.absFileName())));
3773                         }
3774                         markDirty();
3775                         return ReadSuccess;
3776                 }
3777                 return ReadAutosaveFailure;
3778         }
3779         case 1:
3780                 // Here we delete the autosave
3781                 autosaveFile.removeFile();
3782                 return ReadOriginal;
3783         default:
3784                 break;
3785         }
3786         return ReadCancel;
3787 }
3788
3789
3790 Buffer::ReadStatus Buffer::loadLyXFile()
3791 {
3792         if (!d->filename.isReadableFile()) {
3793                 ReadStatus const ret_rvc = extractFromVC();
3794                 if (ret_rvc != ReadSuccess)
3795                         return ret_rvc;
3796         }
3797
3798         ReadStatus const ret_re = loadEmergency();
3799         if (ret_re == ReadSuccess || ret_re == ReadCancel)
3800                 return ret_re;
3801
3802         ReadStatus const ret_ra = loadAutosave();
3803         if (ret_ra == ReadSuccess || ret_ra == ReadCancel)
3804                 return ret_ra;
3805
3806         return loadThisLyXFile(d->filename);
3807 }
3808
3809
3810 Buffer::ReadStatus Buffer::loadThisLyXFile(FileName const & fn)
3811 {
3812         return readFile(fn);
3813 }
3814
3815
3816 void Buffer::bufferErrors(TeXErrors const & terr, ErrorList & errorList) const
3817 {
3818         TeXErrors::Errors::const_iterator it = terr.begin();
3819         TeXErrors::Errors::const_iterator end = terr.end();
3820         ListOfBuffers clist = getDescendents();
3821         ListOfBuffers::const_iterator cen = clist.end();
3822
3823         for (; it != end; ++it) {
3824                 int id_start = -1;
3825                 int pos_start = -1;
3826                 int errorRow = it->error_in_line;
3827                 Buffer const * buf = 0;
3828                 Impl const * p = d;
3829                 if (it->child_name.empty())
3830                     p->texrow.getIdFromRow(errorRow, id_start, pos_start);
3831                 else {
3832                         // The error occurred in a child
3833                         ListOfBuffers::const_iterator cit = clist.begin();
3834                         for (; cit != cen; ++cit) {
3835                                 string const child_name =
3836                                         DocFileName(changeExtension(
3837                                                 (*cit)->absFileName(), "tex")).
3838                                                         mangledFileName();
3839                                 if (it->child_name != child_name)
3840                                         continue;
3841                                 (*cit)->d->texrow.getIdFromRow(errorRow,
3842                                                         id_start, pos_start);
3843                                 if (id_start != -1) {
3844                                         buf = d->cloned_buffer_
3845                                                 ? (*cit)->d->cloned_buffer_->d->owner_
3846                                                 : (*cit)->d->owner_;
3847                                         p = (*cit)->d;
3848                                         break;
3849                                 }
3850                         }
3851                 }
3852                 int id_end = -1;
3853                 int pos_end = -1;
3854                 bool found;
3855                 do {
3856                         ++errorRow;
3857                         found = p->texrow.getIdFromRow(errorRow, id_end, pos_end);
3858                 } while (found && id_start == id_end && pos_start == pos_end);
3859
3860                 if (id_start != id_end) {
3861                         // Next registered position is outside the inset where
3862                         // the error occurred, so signal end-of-paragraph
3863                         pos_end = 0;
3864                 }
3865
3866                 errorList.push_back(ErrorItem(it->error_desc,
3867                         it->error_text, id_start, pos_start, pos_end, buf));
3868         }
3869 }
3870
3871
3872 void Buffer::setBuffersForInsets() const
3873 {
3874         inset().setBuffer(const_cast<Buffer &>(*this));
3875 }
3876
3877
3878 void Buffer::updateBuffer(UpdateScope scope, UpdateType utype) const
3879 {
3880         // Use the master text class also for child documents
3881         Buffer const * const master = masterBuffer();
3882         DocumentClass const & textclass = master->params().documentClass();
3883
3884         // do this only if we are the top-level Buffer
3885         if (master == this)
3886                 reloadBibInfoCache();
3887
3888         // keep the buffers to be children in this set. If the call from the
3889         // master comes back we can see which of them were actually seen (i.e.
3890         // via an InsetInclude). The remaining ones in the set need still be updated.
3891         static std::set<Buffer const *> bufToUpdate;
3892         if (scope == UpdateMaster) {
3893                 // If this is a child document start with the master
3894                 if (master != this) {
3895                         bufToUpdate.insert(this);
3896                         master->updateBuffer(UpdateMaster, utype);
3897                         // Do this here in case the master has no gui associated with it. Then,
3898                         // the TocModel is not updated and TocModel::toc_ is invalid (bug 5699).
3899                         if (!master->d->gui_)
3900                                 structureChanged();
3901
3902                         // was buf referenced from the master (i.e. not in bufToUpdate anymore)?
3903                         if (bufToUpdate.find(this) == bufToUpdate.end())
3904                                 return;
3905                 }
3906
3907                 // start over the counters in the master
3908                 textclass.counters().reset();
3909         }
3910
3911         // update will be done below for this buffer
3912         bufToUpdate.erase(this);
3913
3914         // update all caches
3915         clearReferenceCache();
3916         updateMacros();
3917
3918         Buffer & cbuf = const_cast<Buffer &>(*this);
3919
3920         LASSERT(!text().paragraphs().empty(), /**/);
3921
3922         // do the real work
3923         ParIterator parit = cbuf.par_iterator_begin();
3924         updateBuffer(parit, utype);
3925
3926         if (master != this)
3927                 // TocBackend update will be done later.
3928                 return;
3929
3930         d->bibinfo_cache_valid_ = true;
3931         d->cite_labels_valid_ = true;
3932         cbuf.tocBackend().update();
3933         if (scope == UpdateMaster)
3934                 cbuf.structureChanged();
3935 }
3936
3937
3938 static depth_type getDepth(DocIterator const & it)
3939 {
3940         depth_type depth = 0;
3941         for (size_t i = 0 ; i < it.depth() ; ++i)
3942                 if (!it[i].inset().inMathed())
3943                         depth += it[i].paragraph().getDepth() + 1;
3944         // remove 1 since the outer inset does not count
3945         return depth - 1;
3946 }
3947
3948 static depth_type getItemDepth(ParIterator const & it)
3949 {
3950         Paragraph const & par = *it;
3951         LabelType const labeltype = par.layout().labeltype;
3952
3953         if (labeltype != LABEL_ENUMERATE && labeltype != LABEL_ITEMIZE)
3954                 return 0;
3955
3956         // this will hold the lowest depth encountered up to now.
3957         depth_type min_depth = getDepth(it);
3958         ParIterator prev_it = it;
3959         while (true) {
3960                 if (prev_it.pit())
3961                         --prev_it.top().pit();
3962                 else {
3963                         // start of nested inset: go to outer par
3964                         prev_it.pop_back();
3965                         if (prev_it.empty()) {
3966                                 // start of document: nothing to do
3967                                 return 0;
3968                         }
3969                 }
3970
3971                 // We search for the first paragraph with same label
3972                 // that is not more deeply nested.
3973                 Paragraph & prev_par = *prev_it;
3974                 depth_type const prev_depth = getDepth(prev_it);
3975                 if (labeltype == prev_par.layout().labeltype) {
3976                         if (prev_depth < min_depth)
3977                                 return prev_par.itemdepth + 1;
3978                         if (prev_depth == min_depth)
3979                                 return prev_par.itemdepth;
3980                 }
3981                 min_depth = min(min_depth, prev_depth);
3982                 // small optimization: if we are at depth 0, we won't
3983                 // find anything else
3984                 if (prev_depth == 0)
3985                         return 0;
3986         }
3987 }
3988
3989
3990 static bool needEnumCounterReset(ParIterator const & it)
3991 {
3992         Paragraph const & par = *it;
3993         LASSERT(par.layout().labeltype == LABEL_ENUMERATE, /**/);
3994         depth_type const cur_depth = par.getDepth();
3995         ParIterator prev_it = it;
3996         while (prev_it.pit()) {
3997                 --prev_it.top().pit();
3998                 Paragraph const & prev_par = *prev_it;
3999                 if (prev_par.getDepth() <= cur_depth)
4000                         return  prev_par.layout().labeltype != LABEL_ENUMERATE;
4001         }
4002         // start of nested inset: reset
4003         return true;
4004 }
4005
4006
4007 // set the label of a paragraph. This includes the counters.
4008 void Buffer::Impl::setLabel(ParIterator & it, UpdateType utype) const
4009 {
4010         BufferParams const & bp = owner_->masterBuffer()->params();
4011         DocumentClass const & textclass = bp.documentClass();
4012         Paragraph & par = it.paragraph();
4013         Layout const & layout = par.layout();
4014         Counters & counters = textclass.counters();
4015
4016         if (par.params().startOfAppendix()) {
4017                 // FIXME: only the counter corresponding to toplevel
4018                 // sectioning should be reset
4019                 counters.reset();
4020                 counters.appendix(true);
4021         }
4022         par.params().appendix(counters.appendix());
4023
4024         // Compute the item depth of the paragraph
4025         par.itemdepth = getItemDepth(it);
4026
4027         if (layout.margintype == MARGIN_MANUAL) {
4028                 if (par.params().labelWidthString().empty())
4029                         par.params().labelWidthString(par.expandLabel(layout, bp));
4030         } else if (layout.latextype == LATEX_BIB_ENVIRONMENT) {
4031                 // we do not need to do anything here, since the empty case is
4032                 // handled during export.
4033         } else {
4034                 par.params().labelWidthString(docstring());
4035         }
4036
4037         switch(layout.labeltype) {
4038         case LABEL_COUNTER:
4039                 if (layout.toclevel <= bp.secnumdepth
4040                       && (layout.latextype != LATEX_ENVIRONMENT
4041                           || it.text()->isFirstInSequence(it.pit()))) {
4042                         if (counters.hasCounter(layout.counter))
4043                                 counters.step(layout.counter, utype);
4044                         par.params().labelString(par.expandLabel(layout, bp));
4045                 } else
4046                         par.params().labelString(docstring());
4047                 break;
4048
4049         case LABEL_ITEMIZE: {
4050                 // At some point of time we should do something more
4051                 // clever here, like:
4052                 //   par.params().labelString(
4053                 //    bp.user_defined_bullet(par.itemdepth).getText());
4054                 // for now, use a simple hardcoded label
4055                 docstring itemlabel;
4056                 switch (par.itemdepth) {
4057                 case 0:
4058                         itemlabel = char_type(0x2022);
4059                         break;
4060                 case 1:
4061                         itemlabel = char_type(0x2013);
4062                         break;
4063                 case 2:
4064                         itemlabel = char_type(0x2217);
4065                         break;
4066                 case 3:
4067                         itemlabel = char_type(0x2219); // or 0x00b7
4068                         break;
4069                 }
4070                 par.params().labelString(itemlabel);
4071                 break;
4072         }
4073
4074         case LABEL_ENUMERATE: {
4075                 docstring enumcounter = layout.counter.empty() ? from_ascii("enum") : layout.counter;
4076
4077                 switch (par.itemdepth) {
4078                 case 2:
4079                         enumcounter += 'i';
4080                 case 1:
4081                         enumcounter += 'i';
4082                 case 0:
4083                         enumcounter += 'i';
4084                         break;
4085                 case 3:
4086                         enumcounter += "iv";
4087                         break;
4088                 default:
4089                         // not a valid enumdepth...
4090                         break;
4091                 }
4092
4093                 // Maybe we have to reset the enumeration counter.
4094                 if (needEnumCounterReset(it))
4095                         counters.reset(enumcounter);
4096                 counters.step(enumcounter, utype);
4097
4098                 string const & lang = par.getParLanguage(bp)->code();
4099                 par.params().labelString(counters.theCounter(enumcounter, lang));
4100
4101                 break;
4102         }
4103
4104         case LABEL_SENSITIVE: {
4105                 string const & type = counters.current_float();
4106                 docstring full_label;
4107                 if (type.empty())
4108                         full_label = owner_->B_("Senseless!!! ");
4109                 else {
4110                         docstring name = owner_->B_(textclass.floats().getType(type).name());
4111                         if (counters.hasCounter(from_utf8(type))) {
4112                                 string const & lang = par.getParLanguage(bp)->code();
4113                                 counters.step(from_utf8(type), utype);
4114                                 full_label = bformat(from_ascii("%1$s %2$s:"),
4115                                                      name,
4116                                                      counters.theCounter(from_utf8(type), lang));
4117                         } else
4118                                 full_label = bformat(from_ascii("%1$s #:"), name);
4119                 }
4120                 par.params().labelString(full_label);
4121                 break;
4122         }
4123
4124         case LABEL_NO_LABEL:
4125                 par.params().labelString(docstring());
4126                 break;
4127
4128         case LABEL_MANUAL:
4129         case LABEL_TOP_ENVIRONMENT:
4130         case LABEL_CENTERED_TOP_ENVIRONMENT:
4131         case LABEL_STATIC:
4132         case LABEL_BIBLIO:
4133                 par.params().labelString(par.expandLabel(layout, bp));
4134                 break;
4135         }
4136 }
4137
4138
4139 void Buffer::updateBuffer(ParIterator & parit, UpdateType utype) const
4140 {
4141         LASSERT(parit.pit() == 0, /**/);
4142
4143         // Set the position of the text in the buffer to be able
4144         // to resolve macros in it.
4145         parit.text()->setMacrocontextPosition(parit);
4146
4147         depth_type maxdepth = 0;
4148         pit_type const lastpit = parit.lastpit();
4149         for ( ; parit.pit() <= lastpit ; ++parit.pit()) {
4150                 // reduce depth if necessary
4151                 parit->params().depth(min(parit->params().depth(), maxdepth));
4152                 maxdepth = parit->getMaxDepthAfter();
4153
4154                 if (utype == OutputUpdate) {
4155                         // track the active counters
4156                         // we have to do this for the master buffer, since the local
4157                         // buffer isn't tracking anything.
4158                         masterBuffer()->params().documentClass().counters().
4159                                         setActiveLayout(parit->layout());
4160                 }
4161
4162                 // set the counter for this paragraph
4163                 d->setLabel(parit, utype);
4164
4165                 // now the insets
4166                 InsetList::const_iterator iit = parit->insetList().begin();
4167                 InsetList::const_iterator end = parit->insetList().end();
4168                 for (; iit != end; ++iit) {
4169                         parit.pos() = iit->pos;
4170                         iit->inset->updateBuffer(parit, utype);
4171                 }
4172         }
4173 }
4174
4175
4176 int Buffer::spellCheck(DocIterator & from, DocIterator & to,
4177         WordLangTuple & word_lang, docstring_list & suggestions) const
4178 {
4179         int progress = 0;
4180         WordLangTuple wl;
4181         suggestions.clear();
4182         word_lang = WordLangTuple();
4183         // OK, we start from here.
4184         DocIterator const end = doc_iterator_end(this);
4185         for (; from != end; from.forwardPos()) {
4186                 // We are only interested in text so remove the math CursorSlice.
4187                 while (from.inMathed()) {
4188                         from.pop_back();
4189                         from.pos()++;
4190                 }
4191                 // If from is at the end of the document (which is possible
4192                 // when leaving the mathed) LyX will crash later.
4193                 if (from == end)
4194                         break;
4195                 to = from;
4196                 from.paragraph().spellCheck();
4197                 SpellChecker::Result res = from.paragraph().spellCheck(from.pos(), to.pos(), wl, suggestions);
4198                 if (SpellChecker::misspelled(res)) {
4199                         word_lang = wl;
4200                         break;
4201                 }
4202
4203                 // Do not increase progress when from == to, otherwise the word
4204                 // count will be wrong.
4205                 if (from != to) {
4206                         from = to;
4207                         ++progress;
4208                 }
4209         }
4210         return progress;
4211 }
4212
4213
4214 Buffer::ReadStatus Buffer::reload()
4215 {
4216         setBusy(true);
4217         // c.f. bug http://www.lyx.org/trac/ticket/6587
4218         removeAutosaveFile();
4219         // e.g., read-only status could have changed due to version control
4220         d->filename.refresh();
4221         docstring const disp_fn = makeDisplayPath(d->filename.absFileName());
4222
4223         ReadStatus const status = loadLyXFile();
4224         if (status == ReadSuccess) {
4225                 updateBuffer();
4226                 changed(true);
4227                 updateTitles();
4228                 markClean();
4229                 message(bformat(_("Document %1$s reloaded."), disp_fn));
4230                 d->undo_.clear();
4231         } else {
4232                 message(bformat(_("Could not reload document %1$s."), disp_fn));
4233         }
4234         setBusy(false);
4235         removePreviews();
4236         updatePreviews();
4237         errors("Parse");
4238         return status;
4239 }
4240
4241
4242 bool Buffer::saveAs(FileName const & fn)
4243 {
4244         FileName const old_name = fileName();
4245         FileName const old_auto = getAutosaveFileName();
4246         bool const old_unnamed = isUnnamed();
4247
4248         setFileName(fn);
4249         markDirty();
4250         setUnnamed(false);
4251
4252         if (save()) {
4253                 // bring the autosave file with us, just in case.
4254                 moveAutosaveFile(old_auto);
4255                 // validate version control data and
4256                 // correct buffer title
4257                 lyxvc().file_found_hook(fileName());
4258                 updateTitles();
4259                 // the file has now been saved to the new location.
4260                 // we need to check that the locations of child buffers
4261                 // are still valid.
4262                 checkChildBuffers();
4263                 return true;
4264         } else {
4265                 // save failed
4266                 // reset the old filename and unnamed state
4267                 setFileName(old_name);
4268                 setUnnamed(old_unnamed);
4269                 return false;
4270         }
4271 }
4272
4273
4274 // FIXME We could do better here, but it is complicated. What would be
4275 // nice is to offer either (a) to save the child buffer to an appropriate
4276 // location, so that it would "move with the master", or else (b) to update
4277 // the InsetInclude so that it pointed to the same file. But (a) is a bit
4278 // complicated, because the code for this lives in GuiView.
4279 void Buffer::checkChildBuffers()
4280 {
4281         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
4282         Impl::BufferPositionMap::iterator const en = d->children_positions.end();
4283         for (; it != en; ++it) {
4284                 DocIterator dit = it->second;
4285                 Buffer * cbuf = const_cast<Buffer *>(it->first);
4286                 if (!cbuf || !theBufferList().isLoaded(cbuf))
4287                         continue;
4288                 Inset * inset = dit.nextInset();
4289                 LASSERT(inset && inset->lyxCode() == INCLUDE_CODE, continue);
4290                 InsetInclude * inset_inc = static_cast<InsetInclude *>(inset);
4291                 docstring const & incfile = inset_inc->getParam("filename");
4292                 string oldloc = cbuf->absFileName();
4293                 string newloc = makeAbsPath(to_utf8(incfile),
4294                                 onlyPath(absFileName())).absFileName();
4295                 if (oldloc == newloc)
4296                         continue;
4297                 // the location of the child file is incorrect.
4298                 Alert::warning(_("Included File Invalid"),
4299                                 bformat(_("Saving this document to a new location has made the file:\n"
4300                                 "  %1$s\n"
4301                                 "inaccessible. You will need to update the included filename."),
4302                                 from_utf8(oldloc)));
4303                 cbuf->setParent(0);
4304                 inset_inc->setChildBuffer(0);
4305         }
4306         // invalidate cache of children
4307         d->children_positions.clear();
4308         d->position_to_children.clear();
4309 }
4310
4311 } // namespace lyx