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 "frontends/alert.h"
  81 #include "frontends/Delegates.h"
  82 #include "frontends/WorkAreaManager.h"
  83
  84 #include "graphics/Previews.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
 121 namespace lyx {
 122
 123 namespace Alert = frontend::Alert;
 124 namespace os = support::os;
 125
 126 namespace {
 127
 128 // Do not remove the comment below, so we get merge conflict in
 129 // independent branches. Instead add your own.
 130 int const LYX_FORMAT = 413; // rgh: html_css_as_file
 131
 132 typedef map<string, bool> DepClean;
 133 typedef map<docstring, pair<InsetLabel const *, Buffer::References> > RefCache;
 134
 135 void showPrintError(string const & name)
 136 {
 137         docstring str = bformat(_("Could not print the document %1$s.\n"
 138                                             "Check that your printer is set up correctly."),
 139                              makeDisplayPath(name, 50));
 140         Alert::error(_("Print document failed"), str);
 141 }
 142
 143 } // namespace anon
 144
 145
 146 class Buffer::Impl
 147 {
 148 public:
 149         Impl(Buffer * owner, FileName const & file, bool readonly, Buffer const * cloned_buffer);
 150
 151         ~Impl()
 152         {
 153                 if (wa_) {
 154                         wa_->closeAll();
 155                         delete wa_;
 156                 }
 157                 delete inset;
 158         }
 159
 160         /// search for macro in local (buffer) table or in children
 161         MacroData const * getBufferMacro(docstring const & name,
 162                 DocIterator const & pos) const;
 163
 164         /// Update macro table starting with position of it \param it in some
 165         /// text inset.
 166         void updateMacros(DocIterator & it, DocIterator & scope);
 167         ///
 168         void setLabel(ParIterator & it, UpdateType utype) const;
 169
 170         /** If we have branches that use the file suffix
 171             feature, return the file name with suffix appended.
 172         */
 173         support::FileName exportFileName() const;
 174
 175         Buffer * owner_;
 176
 177         BufferParams params;
 178         LyXVC lyxvc;
 179         FileName temppath;
 180         mutable TexRow texrow;
 181
 182         /// need to regenerate .tex?
 183         DepClean dep_clean;
 184
 185         /// is save needed?
 186         mutable bool lyx_clean;
 187
 188         /// is autosave needed?
 189         mutable bool bak_clean;
 190
 191         /// is this an unnamed file (New...)?
 192         bool unnamed;
 193
 194         /// buffer is r/o
 195         bool read_only;
 196
 197         /// name of the file the buffer is associated with.
 198         FileName filename;
 199
 200         /** Set to true only when the file is fully loaded.
 201          *  Used to prevent the premature generation of previews
 202          *  and by the citation inset.
 203          */
 204         bool file_fully_loaded;
 205
 206         ///
 207         mutable TocBackend toc_backend;
 208
 209         /// macro tables
 210         typedef pair<DocIterator, MacroData> ScopeMacro;
 211         typedef map<DocIterator, ScopeMacro> PositionScopeMacroMap;
 212         typedef map<docstring, PositionScopeMacroMap> NamePositionScopeMacroMap;
 213         /// map from the macro name to the position map,
 214         /// which maps the macro definition position to the scope and the MacroData.
 215         NamePositionScopeMacroMap macros;
 216         /// This seem to change the way Buffer::getMacro() works
 217         mutable bool macro_lock;
 218
 219         /// positions of child buffers in the buffer
 220         typedef map<Buffer const * const, DocIterator> BufferPositionMap;
 221         typedef pair<DocIterator, Buffer const *> ScopeBuffer;
 222         typedef map<DocIterator, ScopeBuffer> PositionScopeBufferMap;
 223         /// position of children buffers in this buffer
 224         BufferPositionMap children_positions;
 225         /// map from children inclusion positions to their scope and their buffer
 226         PositionScopeBufferMap position_to_children;
 227
 228         /// Container for all sort of Buffer dependant errors.
 229         map<string, ErrorList> errorLists;
 230
 231         /// timestamp and checksum used to test if the file has been externally
 232         /// modified. (Used to properly enable 'File->Revert to saved', bug 4114).
 233         time_t timestamp_;
 234         unsigned long checksum_;
 235
 236         ///
 237         frontend::WorkAreaManager * wa_;
 238         ///
 239         frontend::GuiBufferDelegate * gui_;
 240
 241         ///
 242         Undo undo_;
 243
 244         /// A cache for the bibfiles (including bibfiles of loaded child
 245         /// documents), needed for appropriate update of natbib labels.
 246         mutable support::FileNameList bibfiles_cache_;
 247
 248         // FIXME The caching mechanism could be improved. At present, we have a
 249         // cache for each Buffer, that caches all the bibliography info for that
 250         // Buffer. A more efficient solution would be to have a global cache per
 251         // file, and then to construct the Buffer's bibinfo from that.
 252         /// A cache for bibliography info
 253         mutable BiblioInfo bibinfo_;
 254         /// whether the bibinfo cache is valid
 255         mutable bool bibinfo_cache_valid_;
 256         /// whether the bibfile cache is valid
 257         mutable bool bibfile_cache_valid_;
 258         /// Cache of timestamps of .bib files
 259         map<FileName, time_t> bibfile_status_;
 260         /// Indicates whether the bibinfo has changed since the last time
 261         /// we ran updateBuffer(), i.e., whether citation labels may need
 262         /// to be updated.
 263         mutable bool cite_labels_valid_;
 264
 265         mutable RefCache ref_cache_;
 266
 267         /// our Text that should be wrapped in an InsetText
 268         InsetText * inset;
 269
 270         /// This is here to force the test to be done whenever parent_buffer
 271         /// is accessed.
 272         Buffer const * parent() const {
 273                 // if parent_buffer is not loaded, then it has been unloaded,
 274                 // which means that parent_buffer is an invalid pointer. So we
 275                 // set it to null in that case.
 276                 // however, the BufferList doesn't know about cloned buffers, so
 277                 // they will always be regarded as unloaded. in that case, we hope
 278                 // for the best.
 279                 if (!cloned_buffer_ && !theBufferList().isLoaded(parent_buffer))
 280                         parent_buffer = 0;
 281                 return parent_buffer;
 282         }
 283
 284         ///
 285         void setParent(Buffer const * pb) {
 286                 if (parent_buffer == pb)
 287                         // nothing to do
 288                         return;
 289                 if (!cloned_buffer_ && parent_buffer && pb)
 290                         LYXERR0("Warning: a buffer should not have two parents!");
 291                 parent_buffer = pb;
 292                 if (!cloned_buffer_ && parent_buffer) {
 293                         parent_buffer->invalidateBibfileCache();
 294                         parent_buffer->invalidateBibinfoCache();
 295                 }
 296         }
 297
 298         /// If non zero, this buffer is a clone of existing buffer \p cloned_buffer_
 299         /// This one is useful for preview detached in a thread.
 300         Buffer const * cloned_buffer_;
 301         /// are we in the process of exporting this buffer?
 302         mutable bool doing_export;
 303
 304 private:
 305         /// So we can force access via the accessors.
 306         mutable Buffer const * parent_buffer;
 307
 308 };
 309
 310
 311 /// Creates the per buffer temporary directory
 312 static FileName createBufferTmpDir()
 313 {
 314         static int count;
 315         // We are in our own directory.  Why bother to mangle name?
 316         // In fact I wrote this code to circumvent a problematic behaviour
 317         // (bug?) of EMX mkstemp().
 318         FileName tmpfl(package().temp_dir().absFileName() + "/lyx_tmpbuf" +
 319                 convert<string>(count++));
 320
 321         if (!tmpfl.createDirectory(0777)) {
 322                 throw ExceptionMessage(WarningException, _("Disk Error: "), bformat(
 323                         _("LyX could not create the temporary directory '%1$s' (Disk is full maybe?)"),
 324                         from_utf8(tmpfl.absFileName())));
 325         }
 326         return tmpfl;
 327 }
 328
 329
 330 Buffer::Impl::Impl(Buffer * owner, FileName const & file, bool readonly_,
 331         Buffer const * cloned_buffer)
 332         : owner_(owner), lyx_clean(true), bak_clean(true), unnamed(false),
 333           read_only(readonly_), filename(file), file_fully_loaded(false),
 334           toc_backend(owner), macro_lock(false), timestamp_(0),
 335           checksum_(0), wa_(0), gui_(0), undo_(*owner), bibinfo_cache_valid_(false),
 336           bibfile_cache_valid_(false), cite_labels_valid_(false),
 337           cloned_buffer_(cloned_buffer), doing_export(false), parent_buffer(0)
 338 {
 339         if (!cloned_buffer_) {
 340                 temppath = createBufferTmpDir();
 341                 lyxvc.setBuffer(owner_);
 342                 if (use_gui)
 343                         wa_ = new frontend::WorkAreaManager;
 344                 return;
 345         }
 346         temppath = cloned_buffer_->d->temppath;
 347         file_fully_loaded = true;
 348         params = cloned_buffer_->d->params;
 349         bibfiles_cache_ = cloned_buffer_->d->bibfiles_cache_;
 350         bibinfo_ = cloned_buffer_->d->bibinfo_;
 351         bibinfo_cache_valid_ = cloned_buffer_->d->bibinfo_cache_valid_;
 352         bibfile_cache_valid_ = cloned_buffer_->d->bibfile_cache_valid_;
 353         bibfile_status_ = cloned_buffer_->d->bibfile_status_;
 354         cite_labels_valid_ = cloned_buffer_->d->cite_labels_valid_;
 355 }
 356
 357
 358 Buffer::Buffer(string const & file, bool readonly, Buffer const * cloned_buffer)
 359         : d(new Impl(this, FileName(file), readonly, cloned_buffer))
 360 {
 361         LYXERR(Debug::INFO, "Buffer::Buffer()");
 362         if (cloned_buffer) {
 363                 d->inset = new InsetText(*cloned_buffer->d->inset);
 364                 d->inset->setBuffer(*this);
 365                 // FIXME: optimize this loop somewhat, maybe by creating a new
 366                 // general recursive Inset::setId().
 367                 DocIterator it = doc_iterator_begin(this);
 368                 DocIterator cloned_it = doc_iterator_begin(cloned_buffer);
 369                 for (; !it.atEnd(); it.forwardPar(), cloned_it.forwardPar())
 370                         it.paragraph().setId(cloned_it.paragraph().id());
 371         } else
 372                 d->inset = new InsetText(this);
 373         d->inset->setAutoBreakRows(true);
 374         d->inset->getText(0)->setMacrocontextPosition(par_iterator_begin());
 375 }
 376
 377
 378 Buffer::~Buffer()
 379 {
 380         LYXERR(Debug::INFO, "Buffer::~Buffer()");
 381         // here the buffer should take care that it is
 382         // saved properly, before it goes into the void.
 383
 384         // GuiView already destroyed
 385         d->gui_ = 0;
 386
 387         if (isInternal()) {
 388                 // No need to do additional cleanups for internal buffer.
 389                 delete d;
 390                 return;
 391         }
 392
 393         // loop over children
 394         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
 395         Impl::BufferPositionMap::iterator end = d->children_positions.end();
 396         for (; it != end; ++it) {
 397                 Buffer * child = const_cast<Buffer *>(it->first);
 398                 if (d->cloned_buffer_)
 399                         delete child;
 400                 // The child buffer might have been closed already.
 401                 else if (theBufferList().isLoaded(child))
 402                         theBufferList().releaseChild(this, child);
 403         }
 404
 405         if (!isClean()) {
 406                 docstring msg = _("LyX attempted to close a document that had unsaved changes!\n");
 407                 msg += emergencyWrite();
 408                 Alert::warning(_("Attempting to close changed document!"), msg);
 409         }
 410
 411         // clear references to children in macro tables
 412         d->children_positions.clear();
 413         d->position_to_children.clear();
 414
 415         if (!d->cloned_buffer_ && !d->temppath.destroyDirectory()) {
 416                 Alert::warning(_("Could not remove temporary directory"),
 417                         bformat(_("Could not remove the temporary directory %1$s"),
 418                         from_utf8(d->temppath.absFileName())));
 419         }
 420
 421         if (!isClone())
 422                 removePreviews();
 423
 424         delete d;
 425 }
 426
 427
 428 Buffer * Buffer::clone() const
 429 {
 430         Buffer * buffer_clone = new Buffer(fileName().absFileName(), false, this);
 431         buffer_clone->d->macro_lock = true;
 432         buffer_clone->d->children_positions.clear();
 433         // FIXME (Abdel 09/01/2010): this is too complicated. The whole children_positions and
 434         // math macro caches need to be rethought and simplified.
 435         // I am not sure wether we should handle Buffer cloning here or in BufferList.
 436         // Right now BufferList knows nothing about buffer clones.
 437         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
 438         Impl::BufferPositionMap::iterator end = d->children_positions.end();
 439         for (; it != end; ++it) {
 440                 DocIterator dit = it->second.clone(buffer_clone);
 441                 dit.setBuffer(buffer_clone);
 442                 Buffer * child = const_cast<Buffer *>(it->first);
 443                 Buffer * child_clone = child->clone();
 444                 Inset * inset = dit.nextInset();
 445                 LASSERT(inset && inset->lyxCode() == INCLUDE_CODE, continue);
 446                 InsetInclude * inset_inc = static_cast<InsetInclude *>(inset);
 447                 inset_inc->setChildBuffer(child_clone);
 448                 child_clone->d->setParent(buffer_clone);
 449                 buffer_clone->setChild(dit, child_clone);
 450         }
 451         buffer_clone->d->macro_lock = false;
 452         return buffer_clone;
 453 }
 454
 455
 456 bool Buffer::isClone() const
 457 {
 458         return d->cloned_buffer_;
 459 }
 460
 461
 462 void Buffer::changed(bool update_metrics) const
 463 {
 464         if (d->wa_)
 465                 d->wa_->redrawAll(update_metrics);
 466 }
 467
 468
 469 frontend::WorkAreaManager & Buffer::workAreaManager() const
 470 {
 471         LASSERT(d->wa_, /**/);
 472         return *d->wa_;
 473 }
 474
 475
 476 Text & Buffer::text() const
 477 {
 478         return d->inset->text();
 479 }
 480
 481
 482 Inset & Buffer::inset() const
 483 {
 484         return *d->inset;
 485 }
 486
 487
 488 BufferParams & Buffer::params()
 489 {
 490         return d->params;
 491 }
 492
 493
 494 BufferParams const & Buffer::params() const
 495 {
 496         return d->params;
 497 }
 498
 499
 500 ParagraphList & Buffer::paragraphs()
 501 {
 502         return text().paragraphs();
 503 }
 504
 505
 506 ParagraphList const & Buffer::paragraphs() const
 507 {
 508         return text().paragraphs();
 509 }
 510
 511
 512 LyXVC & Buffer::lyxvc()
 513 {
 514         return d->lyxvc;
 515 }
 516
 517
 518 LyXVC const & Buffer::lyxvc() const
 519 {
 520         return d->lyxvc;
 521 }
 522
 523
 524 string const Buffer::temppath() const
 525 {
 526         return d->temppath.absFileName();
 527 }
 528
 529
 530 TexRow & Buffer::texrow()
 531 {
 532         return d->texrow;
 533 }
 534
 535
 536 TexRow const & Buffer::texrow() const
 537 {
 538         return d->texrow;
 539 }
 540
 541
 542 TocBackend & Buffer::tocBackend() const
 543 {
 544         return d->toc_backend;
 545 }
 546
 547
 548 Undo & Buffer::undo()
 549 {
 550         return d->undo_;
 551 }
 552
 553
 554 void Buffer::setChild(DocIterator const & dit, Buffer * child)
 555 {
 556         d->children_positions[child] = dit;
 557 }
 558
 559
 560 string Buffer::latexName(bool const no_path) const
 561 {
 562         FileName latex_name =
 563                 makeLatexName(d->exportFileName());
 564         return no_path ? latex_name.onlyFileName()
 565                 : latex_name.absFileName();
 566 }
 567
 568
 569 FileName Buffer::Impl::exportFileName() const
 570 {
 571         docstring const branch_suffix =
 572                 params.branchlist().getFileNameSuffix();
 573         if (branch_suffix.empty())
 574                 return filename;
 575
 576         string const name = filename.onlyFileNameWithoutExt()
 577                 + to_utf8(branch_suffix);
 578         FileName res(filename.onlyPath().absFileName() + "/" + name);
 579         res.changeExtension(filename.extension());
 580
 581         return res;
 582 }
 583
 584
 585 string Buffer::logName(LogType * type) const
 586 {
 587         string const filename = latexName(false);
 588
 589         if (filename.empty()) {
 590                 if (type)
 591                         *type = latexlog;
 592                 return string();
 593         }
 594
 595         string const path = temppath();
 596
 597         FileName const fname(addName(temppath(),
 598                                      onlyFileName(changeExtension(filename,
 599                                                                   ".log"))));
 600
 601         // FIXME: how do we know this is the name of the build log?
 602         FileName const bname(
 603                 addName(path, onlyFileName(
 604                         changeExtension(filename,
 605                                         formats.extension(bufferFormat()) + ".out"))));
 606
 607         // Also consider the master buffer log file
 608         FileName masterfname = fname;
 609         LogType mtype;
 610         if (masterBuffer() != this) {
 611                 string const mlogfile = masterBuffer()->logName(&mtype);
 612                 masterfname = FileName(mlogfile);
 613         }
 614
 615         // If no Latex log or Build log is newer, show Build log
 616         if (bname.exists() &&
 617             ((!fname.exists() && !masterfname.exists())
 618              || (fname.lastModified() < bname.lastModified()
 619                  && masterfname.lastModified() < bname.lastModified()))) {
 620                 LYXERR(Debug::FILES, "Log name calculated as: " << bname);
 621                 if (type)
 622                         *type = buildlog;
 623                 return bname.absFileName();
 624         // If we have a newer master file log or only a master log, show this
 625         } else if (fname != masterfname
 626                    && (!fname.exists() && (masterfname.exists()
 627                    || fname.lastModified() < masterfname.lastModified()))) {
 628                 LYXERR(Debug::FILES, "Log name calculated as: " << masterfname);
 629                 if (type)
 630                         *type = mtype;
 631                 return masterfname.absFileName();
 632         }
 633         LYXERR(Debug::FILES, "Log name calculated as: " << fname);
 634         if (type)
 635                         *type = latexlog;
 636         return fname.absFileName();
 637 }
 638
 639
 640 void Buffer::setReadonly(bool const flag)
 641 {
 642         if (d->read_only != flag) {
 643                 d->read_only = flag;
 644                 changed(false);
 645         }
 646 }
 647
 648
 649 void Buffer::setFileName(FileName const & fname)
 650 {
 651         d->filename = fname;
 652         setReadonly(d->filename.isReadOnly());
 653         saveCheckSum();
 654         updateTitles();
 655 }
 656
 657
 658 int Buffer::readHeader(Lexer & lex)
 659 {
 660         int unknown_tokens = 0;
 661         int line = -1;
 662         int begin_header_line = -1;
 663
 664         // Initialize parameters that may be/go lacking in header:
 665         params().branchlist().clear();
 666         params().preamble.erase();
 667         params().options.erase();
 668         params().master.erase();
 669         params().float_placement.erase();
 670         params().paperwidth.erase();
 671         params().paperheight.erase();
 672         params().leftmargin.erase();
 673         params().rightmargin.erase();
 674         params().topmargin.erase();
 675         params().bottommargin.erase();
 676         params().headheight.erase();
 677         params().headsep.erase();
 678         params().footskip.erase();
 679         params().columnsep.erase();
 680         params().fonts_cjk.erase();
 681         params().listings_params.clear();
 682         params().clearLayoutModules();
 683         params().clearRemovedModules();
 684         params().clearIncludedChildren();
 685         params().pdfoptions().clear();
 686         params().indiceslist().clear();
 687         params().backgroundcolor = lyx::rgbFromHexName("#ffffff");
 688         params().isbackgroundcolor = false;
 689         params().fontcolor = lyx::rgbFromHexName("#000000");
 690         params().isfontcolor = false;
 691         params().notefontcolor = lyx::rgbFromHexName("#cccccc");
 692         params().boxbgcolor = lyx::rgbFromHexName("#ff0000");
 693         params().html_latex_start.clear();
 694         params().html_latex_end.clear();
 695         params().html_math_img_scale = 1.0;
 696         params().output_sync_macro.erase();
 697
 698         for (int i = 0; i < 4; ++i) {
 699                 params().user_defined_bullet(i) = ITEMIZE_DEFAULTS[i];
 700                 params().temp_bullet(i) = ITEMIZE_DEFAULTS[i];
 701         }
 702
 703         ErrorList & errorList = d->errorLists["Parse"];
 704
 705         while (lex.isOK()) {
 706                 string token;
 707                 lex >> token;
 708
 709                 if (token.empty())
 710                         continue;
 711
 712                 if (token == "\\end_header")
 713                         break;
 714
 715                 ++line;
 716                 if (token == "\\begin_header") {
 717                         begin_header_line = line;
 718                         continue;
 719                 }
 720
 721                 LYXERR(Debug::PARSER, "Handling document header token: `"
 722                                       << token << '\'');
 723
 724                 string unknown = params().readToken(lex, token, d->filename.onlyPath());
 725                 if (!unknown.empty()) {
 726                         if (unknown[0] != '\\' && token == "\\textclass") {
 727                                 Alert::warning(_("Unknown document class"),
 728                        bformat(_("Using the default document class, because the "
 729                                               "class %1$s is unknown."), from_utf8(unknown)));
 730                         } else {
 731                                 ++unknown_tokens;
 732                                 docstring const s = bformat(_("Unknown token: "
 733                                                                         "%1$s %2$s\n"),
 734                                                          from_utf8(token),
 735                                                          lex.getDocString());
 736                                 errorList.push_back(ErrorItem(_("Document header error"),
 737                                         s, -1, 0, 0));
 738                         }
 739                 }
 740         }
 741         if (begin_header_line) {
 742                 docstring const s = _("\\begin_header is missing");
 743                 errorList.push_back(ErrorItem(_("Document header error"),
 744                         s, -1, 0, 0));
 745         }
 746
 747         params().makeDocumentClass();
 748
 749         return unknown_tokens;
 750 }
 751
 752
 753 // Uwe C. Schroeder
 754 // changed to be public and have one parameter
 755 // Returns true if "\end_document" is not read (Asger)
 756 bool Buffer::readDocument(Lexer & lex)
 757 {
 758         ErrorList & errorList = d->errorLists["Parse"];
 759         errorList.clear();
 760
 761         // remove dummy empty par
 762         paragraphs().clear();
 763
 764         if (!lex.checkFor("\\begin_document")) {
 765                 docstring const s = _("\\begin_document is missing");
 766                 errorList.push_back(ErrorItem(_("Document header error"),
 767                         s, -1, 0, 0));
 768         }
 769
 770         readHeader(lex);
 771
 772         if (params().outputChanges) {
 773                 bool dvipost    = LaTeXFeatures::isAvailable("dvipost");
 774                 bool xcolorulem = LaTeXFeatures::isAvailable("ulem") &&
 775                                   LaTeXFeatures::isAvailable("xcolor");
 776
 777                 if (!dvipost && !xcolorulem) {
 778                         Alert::warning(_("Changes not shown in LaTeX output"),
 779                                        _("Changes will not be highlighted in LaTeX output, "
 780                                          "because neither dvipost nor xcolor/ulem are installed.\n"
 781                                          "Please install these packages or redefine "
 782                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 783                 } else if (!xcolorulem) {
 784                         Alert::warning(_("Changes not shown in LaTeX output"),
 785                                        _("Changes will not be highlighted in LaTeX output "
 786                                          "when using pdflatex, because xcolor and ulem are not installed.\n"
 787                                          "Please install both packages or redefine "
 788                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 789                 }
 790         }
 791
 792         if (!params().master.empty()) {
 793                 FileName const master_file = makeAbsPath(params().master,
 794                            onlyPath(absFileName()));
 795                 if (isLyXFileName(master_file.absFileName())) {
 796                         Buffer * master =
 797                                 checkAndLoadLyXFile(master_file, true);
 798                         if (master) {
 799                                 // necessary e.g. after a reload
 800                                 // to re-register the child (bug 5873)
 801                                 // FIXME: clean up updateMacros (here, only
 802                                 // child registering is needed).
 803                                 master->updateMacros();
 804                                 // set master as master buffer, but only
 805                                 // if we are a real child
 806                                 if (master->isChild(this))
 807                                         setParent(master);
 808                                 // if the master is not fully loaded
 809                                 // it is probably just loading this
 810                                 // child. No warning needed then.
 811                                 else if (master->isFullyLoaded())
 812                                         LYXERR0("The master '"
 813                                                 << params().master
 814                                                 << "' assigned to this document ("
 815                                                 << absFileName()
 816                                                 << ") does not include "
 817                                                 "this document. Ignoring the master assignment.");
 818                         }
 819                 }
 820         }
 821
 822         // assure we have a default index
 823         params().indiceslist().addDefault(B_("Index"));
 824
 825         // read main text
 826         bool const res = text().read(lex, errorList, d->inset);
 827
 828         // inform parent buffer about local macros
 829         if (parent()) {
 830                 Buffer const * pbuf = parent();
 831                 UserMacroSet::const_iterator cit = usermacros.begin();
 832                 UserMacroSet::const_iterator end = usermacros.end();
 833                 for (; cit != end; ++cit)
 834                         pbuf->usermacros.insert(*cit);
 835         }
 836         usermacros.clear();
 837         updateMacros();
 838         updateMacroInstances(InternalUpdate);
 839         return res;
 840 }
 841
 842
 843 bool Buffer::readString(string const & s)
 844 {
 845         params().compressed = false;
 846
 847         Lexer lex;
 848         istringstream is(s);
 849         lex.setStream(is);
 850         FileName const fn = FileName::tempName("Buffer_readString");
 851
 852         int file_format;
 853         ReadStatus const ret_plf = parseLyXFormat(lex, fn, file_format);
 854         if (ret_plf != ReadSuccess)
 855                 return ret_plf;
 856
 857         if (file_format != LYX_FORMAT) {
 858                 // We need to call lyx2lyx, so write the input to a file
 859                 ofstream os(fn.toFilesystemEncoding().c_str());
 860                 os << s;
 861                 os.close();
 862                 // lyxvc in readFile
 863                 return readFile(fn) == ReadSuccess;
 864         }
 865
 866         if (readDocument(lex))
 867                 return false;
 868         return true;
 869 }
 870
 871
 872 Buffer::ReadStatus Buffer::readFile(FileName const & fn)
 873 {
 874         FileName fname(fn);
 875         Lexer lex;
 876         lex.setFile(fname);
 877
 878         int file_format;
 879         ReadStatus const ret_plf = parseLyXFormat(lex, fn, file_format);
 880         if (ret_plf != ReadSuccess)
 881                 return ret_plf;
 882
 883         if (file_format != LYX_FORMAT) {
 884                 FileName tmpFile;
 885                 ReadStatus const ret_clf = convertLyXFormat(fn, tmpFile, file_format);
 886                 if (ret_clf != ReadSuccess)
 887                         return ret_clf;
 888                 return readFile(tmpFile);
 889         }
 890
 891         // FIXME: InsetInfo needs to know whether the file is under VCS
 892         // during the parse process, so this has to be done before.
 893         lyxvc().file_found_hook(d->filename);
 894
 895         if (readDocument(lex)) {
 896                 Alert::error(_("Document format failure"),
 897                         bformat(_("%1$s ended unexpectedly, which means"
 898                                 " that it is probably corrupted."),
 899                                         from_utf8(fn.absFileName())));
 900                 return ReadDocumentFailure;
 901         }
 902
 903         d->file_fully_loaded = true;
 904         d->read_only = !d->filename.isWritable();
 905         params().compressed = d->filename.isZippedFile();
 906         saveCheckSum();
 907         return ReadSuccess;
 908 }
 909
 910
 911 bool Buffer::isFullyLoaded() const
 912 {
 913         return d->file_fully_loaded;
 914 }
 915
 916
 917 void Buffer::setFullyLoaded(bool value)
 918 {
 919         d->file_fully_loaded = value;
 920 }
 921
 922
 923 void Buffer::updatePreviews() const
 924 {
 925         if (graphics::Previews::status() != LyXRC::PREVIEW_OFF)
 926                 thePreviews().generateBufferPreviews(*this);
 927 }
 928
 929
 930 void Buffer::removePreviews() const
 931 {
 932         thePreviews().removeLoader(*this);
 933 }
 934
 935
 936 Buffer::ReadStatus Buffer::parseLyXFormat(Lexer & lex,
 937         FileName const & fn, int & file_format) const
 938 {
 939         if(!lex.checkFor("\\lyxformat")) {
 940                 Alert::error(_("Document format failure"),
 941                         bformat(_("%1$s is not a readable LyX document."),
 942                                 from_utf8(fn.absFileName())));
 943                 return ReadNoLyXFormat;
 944         }
 945
 946         string tmp_format;
 947         lex >> tmp_format;
 948
 949         // LyX formats 217 and earlier were written as 2.17. This corresponds
 950         // to files from LyX versions < 1.1.6.3. We just remove the dot in
 951         // these cases. See also: www.lyx.org/trac/changeset/1313.
 952         size_t dot = tmp_format.find_first_of(".,");
 953         if (dot != string::npos)
 954                 tmp_format.erase(dot, 1);
 955
 956         file_format = convert<int>(tmp_format);
 957         return ReadSuccess;
 958 }
 959
 960
 961 Buffer::ReadStatus Buffer::convertLyXFormat(FileName const & fn,
 962         FileName & tmpfile, int from_format)
 963 {
 964         tmpfile = FileName::tempName("Buffer_convertLyXFormat");
 965         if(tmpfile.empty()) {
 966                 Alert::error(_("Conversion failed"),
 967                         bformat(_("%1$s is from a different"
 968                                 " version of LyX, but a temporary"
 969                                 " file for converting it could"
 970                                 " not be created."),
 971                                 from_utf8(fn.absFileName())));
 972                 return LyX2LyXNoTempFile;
 973         }
 974
 975         FileName const lyx2lyx = libFileSearch("lyx2lyx", "lyx2lyx");
 976         if (lyx2lyx.empty()) {
 977                 Alert::error(_("Conversion script not found"),
 978                      bformat(_("%1$s is from a different"
 979                                " version of LyX, but the"
 980                                " conversion script lyx2lyx"
 981                                " could not be found."),
 982                                from_utf8(fn.absFileName())));
 983                 return LyX2LyXNotFound;
 984         }
 985
 986         // Run lyx2lyx:
 987         //   $python$ "$lyx2lyx$" -t $LYX_FORMAT$ -o "$tempfile$" "$filetoread$"
 988         ostringstream command;
 989         command << os::python()
 990                 << ' ' << quoteName(lyx2lyx.toFilesystemEncoding())
 991                 << " -t " << convert<string>(LYX_FORMAT)
 992                 << " -o " << quoteName(tmpfile.toFilesystemEncoding())
 993                 << ' ' << quoteName(fn.toSafeFilesystemEncoding());
 994         string const command_str = command.str();
 995
 996         LYXERR(Debug::INFO, "Running '" << command_str << '\'');
 997
 998         cmd_ret const ret = runCommand(command_str);
 999         if (ret.first != 0) {
1000                 if (from_format < LYX_FORMAT) {
1001                         Alert::error(_("Conversion script failed"),
1002                                 bformat(_("%1$s is from an older version"
1003                                         " of LyX and the lyx2lyx script"
1004                                         " failed to convert it."),
1005                                         from_utf8(fn.absFileName())));
1006                         return LyX2LyXOlderFormat;
1007                 } else {
1008                         Alert::error(_("Conversion script failed"),
1009                                 bformat(_("%1$s is from a newer version"
1010                                         " of LyX and the lyx2lyx script"
1011                                         " failed to convert it."),
1012                                         from_utf8(fn.absFileName())));
1013                         return LyX2LyXNewerFormat;
1014                 }
1015         }
1016         return ReadSuccess;
1017 }
1018
1019
1020 // Should probably be moved to somewhere else: BufferView? GuiView?
1021 bool Buffer::save() const
1022 {
1023         docstring const file = makeDisplayPath(absFileName(), 20);
1024         d->filename.refresh();
1025
1026         // check the read-only status before moving the file as a backup
1027         if (d->filename.exists()) {
1028                 bool const read_only = !d->filename.isWritable();
1029                 if (read_only) {
1030                         Alert::warning(_("File is read-only"),
1031                                 bformat(_("The file %1$s cannot be written because it "
1032                                 "is marked as read-only."), file));
1033                         return false;
1034                 }
1035         }
1036
1037         // ask if the disk file has been externally modified (use checksum method)
1038         if (fileName().exists() && isExternallyModified(checksum_method)) {
1039                 docstring text =
1040                         bformat(_("Document %1$s has been externally modified. "
1041                                 "Are you sure you want to overwrite this file?"), file);
1042                 int const ret = Alert::prompt(_("Overwrite modified file?"),
1043                         text, 1, 1, _("&Overwrite"), _("&Cancel"));
1044                 if (ret == 1)
1045                         return false;
1046         }
1047
1048         // We don't need autosaves in the immediate future. (Asger)
1049         resetAutosaveTimers();
1050
1051         FileName backupName;
1052         bool madeBackup = false;
1053
1054         // make a backup if the file already exists
1055         if (lyxrc.make_backup && fileName().exists()) {
1056                 backupName = FileName(absFileName() + '~');
1057                 if (!lyxrc.backupdir_path.empty()) {
1058                         string const mangledName =
1059                                 subst(subst(backupName.absFileName(), '/', '!'), ':', '!');
1060                         backupName = FileName(addName(lyxrc.backupdir_path,
1061                                                       mangledName));
1062                 }
1063
1064                 // Except file is symlink do not copy because of #6587.
1065                 // Hard links have bad luck.
1066                 if (fileName().isSymLink())
1067                         madeBackup = fileName().copyTo(backupName);
1068                 else
1069                         madeBackup = fileName().moveTo(backupName);
1070
1071                 if (!madeBackup) {
1072                         Alert::error(_("Backup failure"),
1073                                      bformat(_("Cannot create backup file %1$s.\n"
1074                                                "Please check whether the directory exists and is writable."),
1075                                              from_utf8(backupName.absFileName())));
1076                         //LYXERR(Debug::DEBUG, "Fs error: " << fe.what());
1077                 }
1078         }
1079
1080         if (writeFile(d->filename)) {
1081                 markClean();
1082                 return true;
1083         } else {
1084                 // Saving failed, so backup is not backup
1085                 if (madeBackup)
1086                         backupName.moveTo(d->filename);
1087                 return false;
1088         }
1089 }
1090
1091
1092 bool Buffer::writeFile(FileName const & fname) const
1093 {
1094         // FIXME Do we need to do these here? I don't think writing
1095         // the LyX file depends upon it. (RGH)
1096         // updateBuffer();
1097         // updateMacroInstances();
1098
1099         if (d->read_only && fname == d->filename)
1100                 return false;
1101
1102         bool retval = false;
1103
1104         docstring const str = bformat(_("Saving document %1$s..."),
1105                 makeDisplayPath(fname.absFileName()));
1106         message(str);
1107
1108         string const encoded_fname = fname.toSafeFilesystemEncoding(os::CREATE);
1109
1110         if (params().compressed) {
1111                 gz::ogzstream ofs(encoded_fname.c_str(), ios::out|ios::trunc);
1112                 retval = ofs && write(ofs);
1113         } else {
1114                 ofstream ofs(encoded_fname.c_str(), ios::out|ios::trunc);
1115                 retval = ofs && write(ofs);
1116         }
1117
1118         if (!retval) {
1119                 message(str + _(" could not write file!"));
1120                 return false;
1121         }
1122
1123         // see bug 6587
1124         // removeAutosaveFile();
1125
1126         saveCheckSum();
1127         message(str + _(" done."));
1128
1129         return true;
1130 }
1131
1132
1133 docstring Buffer::emergencyWrite()
1134 {
1135         // No need to save if the buffer has not changed.
1136         if (isClean())
1137                 return docstring();
1138
1139         string const doc = isUnnamed() ? onlyFileName(absFileName()) : absFileName();
1140
1141         docstring user_message = bformat(
1142                 _("LyX: Attempting to save document %1$s\n"), from_utf8(doc));
1143
1144         // We try to save three places:
1145         // 1) Same place as document. Unless it is an unnamed doc.
1146         if (!isUnnamed()) {
1147                 string s = absFileName();
1148                 s += ".emergency";
1149                 LYXERR0("  " << s);
1150                 if (writeFile(FileName(s))) {
1151                         markClean();
1152                         user_message += "  " + bformat(_("Saved to %1$s. Phew.\n"), from_utf8(s));
1153                         return user_message;
1154                 } else {
1155                         user_message += "  " + _("Save failed! Trying again...\n");
1156                 }
1157         }
1158
1159         // 2) In HOME directory.
1160         string s = addName(Package::get_home_dir().absFileName(), absFileName());
1161         s += ".emergency";
1162         lyxerr << ' ' << s << endl;
1163         if (writeFile(FileName(s))) {
1164                 markClean();
1165                 user_message += "  " + bformat(_("Saved to %1$s. Phew.\n"), from_utf8(s));
1166                 return user_message;
1167         }
1168
1169         user_message += "  " + _("Save failed! Trying yet again...\n");
1170
1171         // 3) In "/tmp" directory.
1172         // MakeAbsPath to prepend the current
1173         // drive letter on OS/2
1174         s = addName(package().temp_dir().absFileName(), absFileName());
1175         s += ".emergency";
1176         lyxerr << ' ' << s << endl;
1177         if (writeFile(FileName(s))) {
1178                 markClean();
1179                 user_message += "  " + bformat(_("Saved to %1$s. Phew.\n"), from_utf8(s));
1180                 return user_message;
1181         }
1182
1183         user_message += "  " + _("Save failed! Bummer. Document is lost.");
1184         // Don't try again.
1185         markClean();
1186         return user_message;
1187 }
1188
1189
1190 bool Buffer::write(ostream & ofs) const
1191 {
1192 #ifdef HAVE_LOCALE
1193         // Use the standard "C" locale for file output.
1194         ofs.imbue(locale::classic());
1195 #endif
1196
1197         // The top of the file should not be written by params().
1198
1199         // write out a comment in the top of the file
1200         ofs << "#LyX " << lyx_version_major << "." << lyx_version_minor
1201             << " created this file. For more info see http://www.lyx.org/\n"
1202             << "\\lyxformat " << LYX_FORMAT << "\n"
1203             << "\\begin_document\n";
1204
1205         /// For each author, set 'used' to true if there is a change
1206         /// by this author in the document; otherwise set it to 'false'.
1207         AuthorList::Authors::const_iterator a_it = params().authors().begin();
1208         AuthorList::Authors::const_iterator a_end = params().authors().end();
1209         for (; a_it != a_end; ++a_it)
1210                 a_it->setUsed(false);
1211
1212         ParIterator const end = const_cast<Buffer *>(this)->par_iterator_end();
1213         ParIterator it = const_cast<Buffer *>(this)->par_iterator_begin();
1214         for ( ; it != end; ++it)
1215                 it->checkAuthors(params().authors());
1216
1217         // now write out the buffer parameters.
1218         ofs << "\\begin_header\n";
1219         params().writeFile(ofs);
1220         ofs << "\\end_header\n";
1221
1222         // write the text
1223         ofs << "\n\\begin_body\n";
1224         text().write(ofs);
1225         ofs << "\n\\end_body\n";
1226
1227         // Write marker that shows file is complete
1228         ofs << "\\end_document" << endl;
1229
1230         // Shouldn't really be needed....
1231         //ofs.close();
1232
1233         // how to check if close went ok?
1234         // Following is an attempt... (BE 20001011)
1235
1236         // good() returns false if any error occured, including some
1237         //        formatting error.
1238         // bad()  returns true if something bad happened in the buffer,
1239         //        which should include file system full errors.
1240
1241         bool status = true;
1242         if (!ofs) {
1243                 status = false;
1244                 lyxerr << "File was not closed properly." << endl;
1245         }
1246
1247         return status;
1248 }
1249
1250
1251 bool Buffer::makeLaTeXFile(FileName const & fname,
1252                            string const & original_path,
1253                            OutputParams const & runparams_in,
1254                            bool output_preamble, bool output_body) const
1255 {
1256         OutputParams runparams = runparams_in;
1257
1258         // This is necessary for LuaTeX/XeTeX with tex fonts.
1259         // See FIXME in BufferParams::encoding()
1260         if (runparams.isFullUnicode())
1261                 runparams.encoding = encodings.fromLyXName("utf8-plain");
1262
1263         string const encoding = runparams.encoding->iconvName();
1264         LYXERR(Debug::LATEX, "makeLaTeXFile encoding: " << encoding << "...");
1265
1266         ofdocstream ofs;
1267         try { ofs.reset(encoding); }
1268         catch (iconv_codecvt_facet_exception & e) {
1269                 lyxerr << "Caught iconv exception: " << e.what() << endl;
1270                 Alert::error(_("Iconv software exception Detected"), bformat(_("Please "
1271                         "verify that the support software for your encoding (%1$s) is "
1272                         "properly installed"), from_ascii(encoding)));
1273                 return false;
1274         }
1275         if (!openFileWrite(ofs, fname))
1276                 return false;
1277
1278         //TexStream ts(ofs.rdbuf(), &texrow());
1279         ErrorList & errorList = d->errorLists["Export"];
1280         errorList.clear();
1281         bool failed_export = false;
1282         otexstream os(ofs, d->texrow);
1283
1284         // make sure we are ready to export
1285         // this needs to be done before we validate
1286         // FIXME Do we need to do this all the time? I.e., in children
1287         // of a master we are exporting?
1288         updateBuffer();
1289         updateMacroInstances(OutputUpdate);
1290
1291         try {
1292                 os.texrow().reset();
1293                 writeLaTeXSource(os, original_path,
1294                       runparams, output_preamble, output_body);
1295         }
1296         catch (EncodingException & e) {
1297                 odocstringstream ods;
1298                 ods.put(e.failed_char);
1299                 ostringstream oss;
1300                 oss << "0x" << hex << e.failed_char << dec;
1301                 docstring msg = bformat(_("Could not find LaTeX command for character '%1$s'"
1302                                           " (code point %2$s)"),
1303                                           ods.str(), from_utf8(oss.str()));
1304                 errorList.push_back(ErrorItem(msg, _("Some characters of your document are probably not "
1305                                 "representable in the chosen encoding.\n"
1306                                 "Changing the document encoding to utf8 could help."),
1307                                 e.par_id, e.pos, e.pos + 1));
1308                 failed_export = true;
1309         }
1310         catch (iconv_codecvt_facet_exception & e) {
1311                 errorList.push_back(ErrorItem(_("iconv conversion failed"),
1312                         _(e.what()), -1, 0, 0));
1313                 failed_export = true;
1314         }
1315         catch (exception const & e) {
1316                 errorList.push_back(ErrorItem(_("conversion failed"),
1317                         _(e.what()), -1, 0, 0));
1318                 failed_export = true;
1319         }
1320         catch (...) {
1321                 lyxerr << "Caught some really weird exception..." << endl;
1322                 lyx_exit(1);
1323         }
1324
1325         ofs.close();
1326         if (ofs.fail()) {
1327                 failed_export = true;
1328                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1329         }
1330
1331         errors("Export");
1332         return !failed_export;
1333 }
1334
1335
1336 void Buffer::writeLaTeXSource(otexstream & os,
1337                            string const & original_path,
1338                            OutputParams const & runparams_in,
1339                            bool const output_preamble, bool const output_body) const
1340 {
1341         // The child documents, if any, shall be already loaded at this point.
1342
1343         OutputParams runparams = runparams_in;
1344
1345         // Classify the unicode characters appearing in math insets
1346         Encodings::initUnicodeMath(*this);
1347
1348         // validate the buffer.
1349         LYXERR(Debug::LATEX, "  Validating buffer...");
1350         LaTeXFeatures features(*this, params(), runparams);
1351         validate(features);
1352         LYXERR(Debug::LATEX, "  Buffer validation done.");
1353
1354         // The starting paragraph of the coming rows is the
1355         // first paragraph of the document. (Asger)
1356         if (output_preamble && runparams.nice) {
1357                 os << "%% LyX " << lyx_version << " created this file.  "
1358                         "For more info, see http://www.lyx.org/.\n"
1359                         "%% Do not edit unless you really know what "
1360                         "you are doing.\n";
1361         }
1362         LYXERR(Debug::INFO, "lyx document header finished");
1363
1364         // There are a few differences between nice LaTeX and usual files:
1365         // usual is \batchmode and has a
1366         // special input@path to allow the including of figures
1367         // with either \input or \includegraphics (what figinsets do).
1368         // input@path is set when the actual parameter
1369         // original_path is set. This is done for usual tex-file, but not
1370         // for nice-latex-file. (Matthias 250696)
1371         // Note that input@path is only needed for something the user does
1372         // in the preamble, included .tex files or ERT, files included by
1373         // LyX work without it.
1374         if (output_preamble) {
1375                 if (!runparams.nice) {
1376                         // code for usual, NOT nice-latex-file
1377                         os << "\\batchmode\n"; // changed from \nonstopmode
1378                 }
1379                 if (!original_path.empty()) {
1380                         // FIXME UNICODE
1381                         // We don't know the encoding of inputpath
1382                         docstring const inputpath = from_utf8(support::latex_path(original_path));
1383                         docstring uncodable_glyphs;
1384                         Encoding const * const enc = runparams.encoding;
1385                         if (enc) {
1386                                 for (size_t n = 0; n < inputpath.size(); ++n) {
1387                                         docstring const glyph =
1388                                                 docstring(1, inputpath[n]);
1389                                         if (enc->latexChar(inputpath[n], true) != glyph) {
1390                                                 LYXERR0("Uncodable character '"
1391                                                         << glyph
1392                                                         << "' in input path!");
1393                                                 uncodable_glyphs += glyph;
1394                                         }
1395                                 }
1396                         }
1397
1398                         // warn user if we found uncodable glyphs.
1399                         if (!uncodable_glyphs.empty()) {
1400                                 frontend::Alert::warning(_("Uncodable character in file path"),
1401                                                 support::bformat(_("The path of your document\n"
1402                                                   "(%1$s)\n"
1403                                                   "contains glyphs that are unknown in the\n"
1404                                                   "current document encoding (namely %2$s).\n"
1405                                                   "This will likely result in incomplete output.\n\n"
1406                                                   "Choose an appropriate document encoding (such as utf8)\n"
1407                                                   "or change the file path name."), inputpath, uncodable_glyphs));
1408                         } else {
1409                                 os << "\\makeatletter\n"
1410                                    << "\\def\\input@path{{"
1411                                    << inputpath << "/}}\n"
1412                                    << "\\makeatother\n";
1413                         }
1414                 }
1415
1416                 // get parent macros (if this buffer has a parent) which will be
1417                 // written at the document begin further down.
1418                 MacroSet parentMacros;
1419                 listParentMacros(parentMacros, features);
1420
1421                 runparams.use_polyglossia = features.usePolyglossia();
1422                 // Write the preamble
1423                 runparams.use_babel = params().writeLaTeX(os, features,
1424                                                           d->filename.onlyPath());
1425
1426                 runparams.use_japanese = features.isRequired("japanese");
1427
1428                 if (!output_body)
1429                         return;
1430
1431                 // make the body.
1432                 os << "\\begin{document}\n";
1433
1434                 // output the parent macros
1435                 MacroSet::iterator it = parentMacros.begin();
1436                 MacroSet::iterator end = parentMacros.end();
1437                 for (; it != end; ++it) {
1438                         int num_lines = (*it)->write(os.os(), true);
1439                         os.texrow().newlines(num_lines);
1440                 }
1441
1442         } // output_preamble
1443
1444         os.texrow().start(paragraphs().begin()->id(), 0);
1445
1446         LYXERR(Debug::INFO, "preamble finished, now the body.");
1447
1448         // if we are doing a real file with body, even if this is the
1449         // child of some other buffer, let's cut the link here.
1450         // This happens for example if only a child document is printed.
1451         Buffer const * save_parent = 0;
1452         if (output_preamble) {
1453                 save_parent = d->parent();
1454                 d->setParent(0);
1455         }
1456
1457         // the real stuff
1458         latexParagraphs(*this, text(), os, runparams);
1459
1460         // Restore the parenthood if needed
1461         if (output_preamble)
1462                 d->setParent(save_parent);
1463
1464         // add this just in case after all the paragraphs
1465         os << endl;
1466
1467         if (output_preamble) {
1468                 os << "\\end{document}\n";
1469                 LYXERR(Debug::LATEX, "makeLaTeXFile...done");
1470         } else {
1471                 LYXERR(Debug::LATEX, "LaTeXFile for inclusion made.");
1472         }
1473         runparams_in.encoding = runparams.encoding;
1474
1475         // Just to be sure. (Asger)
1476         os.texrow().newline();
1477
1478         //for (int i = 0; i<d->texrow.rows(); i++) {
1479         // int id,pos;
1480         // if (d->texrow.getIdFromRow(i+1,id,pos) && id>0)
1481         //      lyxerr << i+1 << ":" << id << ":" << getParFromID(id).paragraph().asString()<<"\n";
1482         //}
1483
1484         LYXERR(Debug::INFO, "Finished making LaTeX file.");
1485         LYXERR(Debug::INFO, "Row count was " << os.texrow().rows() - 1 << '.');
1486 }
1487
1488
1489 bool Buffer::isLatex() const
1490 {
1491         return params().documentClass().outputType() == LATEX;
1492 }
1493
1494
1495 bool Buffer::isLiterate() const
1496 {
1497         return params().documentClass().outputType() == LITERATE;
1498 }
1499
1500
1501 bool Buffer::isDocBook() const
1502 {
1503         return params().documentClass().outputType() == DOCBOOK;
1504 }
1505
1506
1507 void Buffer::makeDocBookFile(FileName const & fname,
1508                               OutputParams const & runparams,
1509                               bool const body_only) const
1510 {
1511         LYXERR(Debug::LATEX, "makeDocBookFile...");
1512
1513         ofdocstream ofs;
1514         if (!openFileWrite(ofs, fname))
1515                 return;
1516
1517         // make sure we are ready to export
1518         // this needs to be done before we validate
1519         updateBuffer();
1520         updateMacroInstances(OutputUpdate);
1521
1522         writeDocBookSource(ofs, fname.absFileName(), runparams, body_only);
1523
1524         ofs.close();
1525         if (ofs.fail())
1526                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1527 }
1528
1529
1530 void Buffer::writeDocBookSource(odocstream & os, string const & fname,
1531                              OutputParams const & runparams,
1532                              bool const only_body) const
1533 {
1534         LaTeXFeatures features(*this, params(), runparams);
1535         validate(features);
1536
1537         d->texrow.reset();
1538
1539         DocumentClass const & tclass = params().documentClass();
1540         string const top_element = tclass.latexname();
1541
1542         if (!only_body) {
1543                 if (runparams.flavor == OutputParams::XML)
1544                         os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
1545
1546                 // FIXME UNICODE
1547                 os << "<!DOCTYPE " << from_ascii(top_element) << ' ';
1548
1549                 // FIXME UNICODE
1550                 if (! tclass.class_header().empty())
1551                         os << from_ascii(tclass.class_header());
1552                 else if (runparams.flavor == OutputParams::XML)
1553                         os << "PUBLIC \"-//OASIS//DTD DocBook XML//EN\" "
1554                             << "\"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd\"";
1555                 else
1556                         os << " PUBLIC \"-//OASIS//DTD DocBook V4.2//EN\"";
1557
1558                 docstring preamble = from_utf8(params().preamble);
1559                 if (runparams.flavor != OutputParams::XML ) {
1560                         preamble += "<!ENTITY % output.print.png \"IGNORE\">\n";
1561                         preamble += "<!ENTITY % output.print.pdf \"IGNORE\">\n";
1562                         preamble += "<!ENTITY % output.print.eps \"IGNORE\">\n";
1563                         preamble += "<!ENTITY % output.print.bmp \"IGNORE\">\n";
1564                 }
1565
1566                 string const name = runparams.nice
1567                         ? changeExtension(absFileName(), ".sgml") : fname;
1568                 preamble += features.getIncludedFiles(name);
1569                 preamble += features.getLyXSGMLEntities();
1570
1571                 if (!preamble.empty()) {
1572                         os << "\n [ " << preamble << " ]";
1573                 }
1574                 os << ">\n\n";
1575         }
1576
1577         string top = top_element;
1578         top += " lang=\"";
1579         if (runparams.flavor == OutputParams::XML)
1580                 top += params().language->code();
1581         else
1582                 top += params().language->code().substr(0, 2);
1583         top += '"';
1584
1585         if (!params().options.empty()) {
1586                 top += ' ';
1587                 top += params().options;
1588         }
1589
1590         os << "<!-- " << ((runparams.flavor == OutputParams::XML)? "XML" : "SGML")
1591             << " file was created by LyX " << lyx_version
1592             << "\n  See http://www.lyx.org/ for more information -->\n";
1593
1594         params().documentClass().counters().reset();
1595
1596         sgml::openTag(os, top);
1597         os << '\n';
1598         docbookParagraphs(text(), *this, os, runparams);
1599         sgml::closeTag(os, top_element);
1600 }
1601
1602
1603 void Buffer::makeLyXHTMLFile(FileName const & fname,
1604                               OutputParams const & runparams,
1605                               bool const body_only) const
1606 {
1607         LYXERR(Debug::LATEX, "makeLyXHTMLFile...");
1608
1609         ofdocstream ofs;
1610         if (!openFileWrite(ofs, fname))
1611                 return;
1612
1613         // make sure we are ready to export
1614         // this has to be done before we validate
1615         updateBuffer(UpdateMaster, OutputUpdate);
1616         updateMacroInstances(OutputUpdate);
1617
1618         writeLyXHTMLSource(ofs, runparams, body_only);
1619
1620         ofs.close();
1621         if (ofs.fail())
1622                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1623 }
1624
1625
1626 void Buffer::writeLyXHTMLSource(odocstream & os,
1627                              OutputParams const & runparams,
1628                              bool const only_body) const
1629 {
1630         LaTeXFeatures features(*this, params(), runparams);
1631         validate(features);
1632         d->bibinfo_.makeCitationLabels(*this);
1633
1634         if (!only_body) {
1635                 os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
1636                    << "<!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"
1637                    // FIXME Language should be set properly.
1638                    << "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n"
1639                    << "<head>\n"
1640                    << "<meta name=\"GENERATOR\" content=\"" << PACKAGE_STRING << "\" />\n"
1641                    // FIXME Presumably need to set this right
1642                    << "<meta http-equiv=\"Content-type\" content=\"text/html;charset=UTF-8\" />\n";
1643
1644                 docstring const & doctitle = features.htmlTitle();
1645                 os << "<title>"
1646                    << (doctitle.empty() ? from_ascii("LyX Document") : doctitle)
1647                    << "</title>\n";
1648
1649                 os << "\n<!-- Text Class Preamble -->\n"
1650                    << features.getTClassHTMLPreamble()
1651                    << "\n<!-- Preamble Snippets -->\n"
1652                    << from_utf8(features.getPreambleSnippets());
1653
1654                 os << "\n<!-- Layout-provided Styles -->\n";
1655                 docstring const styleinfo = features.getTClassHTMLStyles();
1656                 if (!styleinfo.empty()) {
1657                         os << "<style type='text/css'>\n"
1658                                 << styleinfo
1659                                 << "</style>\n";
1660                 }
1661                 os << "</head>\n<body>\n";
1662         }
1663
1664         XHTMLStream xs(os);
1665         params().documentClass().counters().reset();
1666         xhtmlParagraphs(text(), *this, xs, runparams);
1667         if (!only_body)
1668                 os << "</body>\n</html>\n";
1669 }
1670
1671
1672 // chktex should be run with these flags disabled: 3, 22, 25, 30, 38(?)
1673 // Other flags: -wall -v0 -x
1674 int Buffer::runChktex()
1675 {
1676         setBusy(true);
1677
1678         // get LaTeX-Filename
1679         FileName const path(temppath());
1680         string const name = addName(path.absFileName(), latexName());
1681         string const org_path = filePath();
1682
1683         PathChanger p(path); // path to LaTeX file
1684         message(_("Running chktex..."));
1685
1686         // Generate the LaTeX file if neccessary
1687         OutputParams runparams(&params().encoding());
1688         runparams.flavor = OutputParams::LATEX;
1689         runparams.nice = false;
1690         runparams.linelen = lyxrc.plaintext_linelen;
1691         makeLaTeXFile(FileName(name), org_path, runparams);
1692
1693         TeXErrors terr;
1694         Chktex chktex(lyxrc.chktex_command, onlyFileName(name), filePath());
1695         int const res = chktex.run(terr); // run chktex
1696
1697         if (res == -1) {
1698                 Alert::error(_("chktex failure"),
1699                              _("Could not run chktex successfully."));
1700         } else if (res > 0) {
1701                 ErrorList & errlist = d->errorLists["ChkTeX"];
1702                 errlist.clear();
1703                 bufferErrors(terr, errlist);
1704         }
1705
1706         setBusy(false);
1707
1708         errors("ChkTeX");
1709
1710         return res;
1711 }
1712
1713
1714 void Buffer::validate(LaTeXFeatures & features) const
1715 {
1716         params().validate(features);
1717
1718         for_each(paragraphs().begin(), paragraphs().end(),
1719                  bind(&Paragraph::validate, _1, ref(features)));
1720
1721         if (lyxerr.debugging(Debug::LATEX)) {
1722                 features.showStruct();
1723         }
1724 }
1725
1726
1727 void Buffer::getLabelList(vector<docstring> & list) const
1728 {
1729         // If this is a child document, use the master's list instead.
1730         if (parent()) {
1731                 masterBuffer()->getLabelList(list);
1732                 return;
1733         }
1734
1735         list.clear();
1736         Toc & toc = d->toc_backend.toc("label");
1737         TocIterator toc_it = toc.begin();
1738         TocIterator end = toc.end();
1739         for (; toc_it != end; ++toc_it) {
1740                 if (toc_it->depth() == 0)
1741                         list.push_back(toc_it->str());
1742         }
1743 }
1744
1745
1746 void Buffer::updateBibfilesCache(UpdateScope scope) const
1747 {
1748         // FIXME This is probably unnecssary, given where we call this.
1749         // If this is a child document, use the parent's cache instead.
1750         if (parent() && scope != UpdateChildOnly) {
1751                 masterBuffer()->updateBibfilesCache();
1752                 return;
1753         }
1754
1755         d->bibfiles_cache_.clear();
1756         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
1757                 if (it->lyxCode() == BIBTEX_CODE) {
1758                         InsetBibtex const & inset = static_cast<InsetBibtex const &>(*it);
1759                         support::FileNameList const bibfiles = inset.getBibFiles();
1760                         d->bibfiles_cache_.insert(d->bibfiles_cache_.end(),
1761                                 bibfiles.begin(),
1762                                 bibfiles.end());
1763                 } else if (it->lyxCode() == INCLUDE_CODE) {
1764                         InsetInclude & inset = static_cast<InsetInclude &>(*it);
1765                         Buffer const * const incbuf = inset.getChildBuffer();
1766                         if (!incbuf)
1767                                 continue;
1768                         support::FileNameList const & bibfiles =
1769                                         incbuf->getBibfilesCache(UpdateChildOnly);
1770                         if (!bibfiles.empty()) {
1771                                 d->bibfiles_cache_.insert(d->bibfiles_cache_.end(),
1772                                         bibfiles.begin(),
1773                                         bibfiles.end());
1774                         }
1775                 }
1776         }
1777         d->bibfile_cache_valid_ = true;
1778         d->bibinfo_cache_valid_ = false;
1779         d->cite_labels_valid_ = false;
1780 }
1781
1782
1783 void Buffer::invalidateBibinfoCache() const
1784 {
1785         d->bibinfo_cache_valid_ = false;
1786         d->cite_labels_valid_ = false;
1787         // also invalidate the cache for the parent buffer
1788         Buffer const * const pbuf = d->parent();
1789         if (pbuf)
1790                 pbuf->invalidateBibinfoCache();
1791 }
1792
1793
1794 void Buffer::invalidateBibfileCache() const
1795 {
1796         d->bibfile_cache_valid_ = false;
1797         d->bibinfo_cache_valid_ = false;
1798         d->cite_labels_valid_ = false;
1799         // also invalidate the cache for the parent buffer
1800         Buffer const * const pbuf = d->parent();
1801         if (pbuf)
1802                 pbuf->invalidateBibfileCache();
1803 }
1804
1805
1806 support::FileNameList const & Buffer::getBibfilesCache(UpdateScope scope) const
1807 {
1808         // FIXME This is probably unnecessary, given where we call this.
1809         // If this is a child document, use the master's cache instead.
1810         Buffer const * const pbuf = masterBuffer();
1811         if (pbuf != this && scope != UpdateChildOnly)
1812                 return pbuf->getBibfilesCache();
1813
1814         if (!d->bibfile_cache_valid_)
1815                 this->updateBibfilesCache(scope);
1816
1817         return d->bibfiles_cache_;
1818 }
1819
1820
1821 BiblioInfo const & Buffer::masterBibInfo() const
1822 {
1823         Buffer const * const tmp = masterBuffer();
1824         if (tmp != this)
1825                 return tmp->masterBibInfo();
1826         return d->bibinfo_;
1827 }
1828
1829
1830 void Buffer::checkIfBibInfoCacheIsValid() const
1831 {
1832         // use the master's cache
1833         Buffer const * const tmp = masterBuffer();
1834         if (tmp != this) {
1835                 tmp->checkIfBibInfoCacheIsValid();
1836                 return;
1837         }
1838
1839         // compare the cached timestamps with the actual ones.
1840         FileNameList const & bibfiles_cache = getBibfilesCache();
1841         FileNameList::const_iterator ei = bibfiles_cache.begin();
1842         FileNameList::const_iterator en = bibfiles_cache.end();
1843         for (; ei != en; ++ ei) {
1844                 time_t lastw = ei->lastModified();
1845                 time_t prevw = d->bibfile_status_[*ei];
1846                 if (lastw != prevw) {
1847                         d->bibinfo_cache_valid_ = false;
1848                         d->cite_labels_valid_ = false;
1849                         d->bibfile_status_[*ei] = lastw;
1850                 }
1851         }
1852 }
1853
1854
1855 void Buffer::reloadBibInfoCache() const
1856 {
1857         // use the master's cache
1858         Buffer const * const tmp = masterBuffer();
1859         if (tmp != this) {
1860                 tmp->reloadBibInfoCache();
1861                 return;
1862         }
1863
1864         checkIfBibInfoCacheIsValid();
1865         if (d->bibinfo_cache_valid_)
1866                 return;
1867
1868         d->bibinfo_.clear();
1869         collectBibKeys();
1870         d->bibinfo_cache_valid_ = true;
1871 }
1872
1873
1874 void Buffer::collectBibKeys() const
1875 {
1876         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it)
1877                 it->collectBibKeys(it);
1878 }
1879
1880
1881 void Buffer::addBiblioInfo(BiblioInfo const & bi) const
1882 {
1883         Buffer const * tmp = masterBuffer();
1884         BiblioInfo & masterbi = (tmp == this) ?
1885                 d->bibinfo_ : tmp->d->bibinfo_;
1886         masterbi.mergeBiblioInfo(bi);
1887 }
1888
1889
1890 void Buffer::addBibTeXInfo(docstring const & key, BibTeXInfo const & bi) const
1891 {
1892         Buffer const * tmp = masterBuffer();
1893         BiblioInfo & masterbi = (tmp == this) ?
1894                 d->bibinfo_ : tmp->d->bibinfo_;
1895         masterbi[key] = bi;
1896 }
1897
1898
1899 bool Buffer::citeLabelsValid() const
1900 {
1901         return masterBuffer()->d->cite_labels_valid_;
1902 }
1903
1904
1905 bool Buffer::isDepClean(string const & name) const
1906 {
1907         DepClean::const_iterator const it = d->dep_clean.find(name);
1908         if (it == d->dep_clean.end())
1909                 return true;
1910         return it->second;
1911 }
1912
1913
1914 void Buffer::markDepClean(string const & name)
1915 {
1916         d->dep_clean[name] = true;
1917 }
1918
1919
1920 bool Buffer::isExportableFormat(string const & format) const
1921 {
1922                 typedef vector<Format const *> Formats;
1923                 Formats formats;
1924                 formats = exportableFormats(true);
1925                 Formats::const_iterator fit = formats.begin();
1926                 Formats::const_iterator end = formats.end();
1927                 for (; fit != end ; ++fit) {
1928                         if ((*fit)->name() == format)
1929                                 return true;
1930                 }
1931                 return false;
1932 }
1933
1934
1935 bool Buffer::getStatus(FuncRequest const & cmd, FuncStatus & flag)
1936 {
1937         if (isInternal()) {
1938                 // FIXME? if there is an Buffer LFUN that can be dispatched even
1939                 // if internal, put a switch '(cmd.action)' here.
1940                 return false;
1941         }
1942
1943         bool enable = true;
1944
1945         switch (cmd.action()) {
1946
1947                 case LFUN_BUFFER_TOGGLE_READ_ONLY:
1948                         flag.setOnOff(isReadonly());
1949                         break;
1950
1951                 // FIXME: There is need for a command-line import.
1952                 //case LFUN_BUFFER_IMPORT:
1953
1954                 case LFUN_BUFFER_AUTO_SAVE:
1955                         break;
1956
1957                 case LFUN_BUFFER_EXPORT_CUSTOM:
1958                         // FIXME: Nothing to check here?
1959                         break;
1960
1961                 case LFUN_BUFFER_EXPORT: {
1962                         docstring const arg = cmd.argument();
1963                         enable = arg == "custom" || isExportable(to_utf8(arg));
1964                         if (!enable)
1965                                 flag.message(bformat(
1966                                         _("Don't know how to export to format: %1$s"), arg));
1967                         break;
1968                 }
1969
1970                 case LFUN_BUFFER_CHKTEX:
1971                         enable = isLatex() && !lyxrc.chktex_command.empty();
1972                         break;
1973
1974                 case LFUN_BUILD_PROGRAM:
1975                         enable = isExportable("program");
1976                         break;
1977
1978                 case LFUN_BRANCH_ACTIVATE:
1979                 case LFUN_BRANCH_DEACTIVATE: {
1980                         BranchList const & branchList = params().branchlist();
1981                         docstring const branchName = cmd.argument();
1982                         enable = !branchName.empty() && branchList.find(branchName);
1983                         break;
1984                 }
1985
1986                 case LFUN_BRANCH_ADD:
1987                 case LFUN_BRANCHES_RENAME:
1988                 case LFUN_BUFFER_PRINT:
1989                         // if no Buffer is present, then of course we won't be called!
1990                         break;
1991
1992                 case LFUN_BUFFER_LANGUAGE:
1993                         enable = !isReadonly();
1994                         break;
1995
1996                 default:
1997                         return false;
1998         }
1999         flag.setEnabled(enable);
2000         return true;
2001 }
2002
2003
2004 void Buffer::dispatch(string const & command, DispatchResult & result)
2005 {
2006         return dispatch(lyxaction.lookupFunc(command), result);
2007 }
2008
2009
2010 // NOTE We can end up here even if we have no GUI, because we are called
2011 // by LyX::exec to handled command-line requests. So we may need to check
2012 // whether we have a GUI or not. The boolean use_gui holds this information.
2013 void Buffer::dispatch(FuncRequest const & func, DispatchResult & dr)
2014 {
2015         if (isInternal()) {
2016                 // FIXME? if there is an Buffer LFUN that can be dispatched even
2017                 // if internal, put a switch '(cmd.action())' here.
2018                 dr.dispatched(false);
2019                 return;
2020         }
2021         string const argument = to_utf8(func.argument());
2022         // We'll set this back to false if need be.
2023         bool dispatched = true;
2024         undo().beginUndoGroup();
2025
2026         switch (func.action()) {
2027         case LFUN_BUFFER_TOGGLE_READ_ONLY:
2028                 if (lyxvc().inUse())
2029                         lyxvc().toggleReadOnly();
2030                 else
2031                         setReadonly(!isReadonly());
2032                 break;
2033
2034         case LFUN_BUFFER_EXPORT: {
2035                 bool success = doExport(argument, false, false);
2036                 dr.setError(!success);
2037                 if (!success)
2038                         dr.setMessage(bformat(_("Error exporting to format: %1$s."),
2039                                               func.argument()));
2040                 break;
2041         }
2042
2043         case LFUN_BUILD_PROGRAM:
2044                 doExport("program", true, false);
2045                 break;
2046
2047         case LFUN_BUFFER_CHKTEX:
2048                 runChktex();
2049                 break;
2050
2051         case LFUN_BUFFER_EXPORT_CUSTOM: {
2052                 string format_name;
2053                 string command = split(argument, format_name, ' ');
2054                 Format const * format = formats.getFormat(format_name);
2055                 if (!format) {
2056                         lyxerr << "Format \"" << format_name
2057                                 << "\" not recognized!"
2058                                 << endl;
2059                         break;
2060                 }
2061
2062                 // The name of the file created by the conversion process
2063                 string filename;
2064
2065                 // Output to filename
2066                 if (format->name() == "lyx") {
2067                         string const latexname = latexName(false);
2068                         filename = changeExtension(latexname,
2069                                 format->extension());
2070                         filename = addName(temppath(), filename);
2071
2072                         if (!writeFile(FileName(filename)))
2073                                 break;
2074
2075                 } else {
2076                         doExport(format_name, true, false, filename);
2077                 }
2078
2079                 // Substitute $$FName for filename
2080                 if (!contains(command, "$$FName"))
2081                         command = "( " + command + " ) < $$FName";
2082                 command = subst(command, "$$FName", filename);
2083
2084                 // Execute the command in the background
2085                 Systemcall call;
2086                 call.startscript(Systemcall::DontWait, command, filePath());
2087                 break;
2088         }
2089
2090         // FIXME: There is need for a command-line import.
2091         /*
2092         case LFUN_BUFFER_IMPORT:
2093                 doImport(argument);
2094                 break;
2095         */
2096
2097         case LFUN_BUFFER_AUTO_SAVE:
2098                 autoSave();
2099                 resetAutosaveTimers();
2100                 break;
2101
2102         case LFUN_BRANCH_ADD: {
2103                 docstring branch_name = func.argument();
2104                 if (branch_name.empty()) {
2105                         dispatched = false;
2106                         break;
2107                 }
2108                 BranchList & branch_list = params().branchlist();
2109                 vector<docstring> const branches =
2110                         getVectorFromString(branch_name, branch_list.separator());
2111                 docstring msg;
2112                 for (vector<docstring>::const_iterator it = branches.begin();
2113                      it != branches.end(); ++it) {
2114                         branch_name = *it;
2115                         Branch * branch = branch_list.find(branch_name);
2116                         if (branch) {
2117                                 LYXERR0("Branch " << branch_name << " already exists.");
2118                                 dr.setError(true);
2119                                 if (!msg.empty())
2120                                         msg += ("\n");
2121                                 msg += bformat(_("Branch \"%1$s\" already exists."), branch_name);
2122                         } else {
2123                                 branch_list.add(branch_name);
2124                                 branch = branch_list.find(branch_name);
2125                                 string const x11hexname = X11hexname(branch->color());
2126                                 docstring const str = branch_name + ' ' + from_ascii(x11hexname);
2127                                 lyx::dispatch(FuncRequest(LFUN_SET_COLOR, str));
2128                                 dr.setError(false);
2129                                 dr.screenUpdate(Update::Force);
2130                         }
2131                 }
2132                 if (!msg.empty())
2133                         dr.setMessage(msg);
2134                 break;
2135         }
2136
2137         case LFUN_BRANCH_ACTIVATE:
2138         case LFUN_BRANCH_DEACTIVATE: {
2139                 BranchList & branchList = params().branchlist();
2140                 docstring const branchName = func.argument();
2141                 // the case without a branch name is handled elsewhere
2142                 if (branchName.empty()) {
2143                         dispatched = false;
2144                         break;
2145                 }
2146                 Branch * branch = branchList.find(branchName);
2147                 if (!branch) {
2148                         LYXERR0("Branch " << branchName << " does not exist.");
2149                         dr.setError(true);
2150                         docstring const msg =
2151                                 bformat(_("Branch \"%1$s\" does not exist."), branchName);
2152                         dr.setMessage(msg);
2153                 } else {
2154                         branch->setSelected(func.action() == LFUN_BRANCH_ACTIVATE);
2155                         dr.setError(false);
2156                         dr.screenUpdate(Update::Force);
2157                         dr.forceBufferUpdate();
2158                 }
2159                 break;
2160         }
2161
2162         case LFUN_BRANCHES_RENAME: {
2163                 if (func.argument().empty())
2164                         break;
2165
2166                 docstring const oldname = from_utf8(func.getArg(0));
2167                 docstring const newname = from_utf8(func.getArg(1));
2168                 InsetIterator it  = inset_iterator_begin(inset());
2169                 InsetIterator const end = inset_iterator_end(inset());
2170                 bool success = false;
2171                 for (; it != end; ++it) {
2172                         if (it->lyxCode() == BRANCH_CODE) {
2173                                 InsetBranch & ins = static_cast<InsetBranch &>(*it);
2174                                 if (ins.branch() == oldname) {
2175                                         undo().recordUndo(it);
2176                                         ins.rename(newname);
2177                                         success = true;
2178                                         continue;
2179                                 }
2180                         }
2181                         if (it->lyxCode() == INCLUDE_CODE) {
2182                                 // get buffer of external file
2183                                 InsetInclude const & ins =
2184                                         static_cast<InsetInclude const &>(*it);
2185                                 Buffer * child = ins.getChildBuffer();
2186                                 if (!child)
2187                                         continue;
2188                                 child->dispatch(func, dr);
2189                         }
2190                 }
2191
2192                 if (success) {
2193                         dr.screenUpdate(Update::Force);
2194                         dr.forceBufferUpdate();
2195                 }
2196                 break;
2197         }
2198
2199         case LFUN_BUFFER_PRINT: {
2200                 // we'll assume there's a problem until we succeed
2201                 dr.setError(true);
2202                 string target = func.getArg(0);
2203                 string target_name = func.getArg(1);
2204                 string command = func.getArg(2);
2205
2206                 if (target.empty()
2207                     || target_name.empty()
2208                     || command.empty()) {
2209                         LYXERR0("Unable to parse " << func.argument());
2210                         docstring const msg =
2211                                 bformat(_("Unable to parse \"%1$s\""), func.argument());
2212                         dr.setMessage(msg);
2213                         break;
2214                 }
2215                 if (target != "printer" && target != "file") {
2216                         LYXERR0("Unrecognized target \"" << target << '"');
2217                         docstring const msg =
2218                                 bformat(_("Unrecognized target \"%1$s\""), from_utf8(target));
2219                         dr.setMessage(msg);
2220                         break;
2221                 }
2222
2223                 bool const update_unincluded =
2224                                 params().maintain_unincluded_children
2225                                 && !params().getIncludedChildren().empty();
2226                 if (!doExport("dvi", true, update_unincluded)) {
2227                         showPrintError(absFileName());
2228                         dr.setMessage(_("Error exporting to DVI."));
2229                         break;
2230                 }
2231
2232                 // Push directory path.
2233                 string const path = temppath();
2234                 // Prevent the compiler from optimizing away p
2235                 FileName pp(path);
2236                 PathChanger p(pp);
2237
2238                 // there are three cases here:
2239                 // 1. we print to a file
2240                 // 2. we print directly to a printer
2241                 // 3. we print using a spool command (print to file first)
2242                 Systemcall one;
2243                 int res = 0;
2244                 string const dviname = changeExtension(latexName(true), "dvi");
2245
2246                 if (target == "printer") {
2247                         if (!lyxrc.print_spool_command.empty()) {
2248                                 // case 3: print using a spool
2249                                 string const psname = changeExtension(dviname,".ps");
2250                                 command += ' ' + lyxrc.print_to_file
2251                                         + quoteName(psname)
2252                                         + ' '
2253                                         + quoteName(dviname);
2254
2255                                 string command2 = lyxrc.print_spool_command + ' ';
2256                                 if (target_name != "default") {
2257                                         command2 += lyxrc.print_spool_printerprefix
2258                                                 + target_name
2259                                                 + ' ';
2260                                 }
2261                                 command2 += quoteName(psname);
2262                                 // First run dvips.
2263                                 // If successful, then spool command
2264                                 res = one.startscript(Systemcall::Wait, command,
2265                                                       filePath());
2266
2267                                 if (res == 0) {
2268                                         // If there's no GUI, we have to wait on this command. Otherwise,
2269                                         // LyX deletes the temporary directory, and with it the spooled
2270                                         // file, before it can be printed!!
2271                                         Systemcall::Starttype stype = use_gui ?
2272                                                 Systemcall::DontWait : Systemcall::Wait;
2273                                         res = one.startscript(stype, command2,
2274                                                               filePath());
2275                                 }
2276                         } else {
2277                                 // case 2: print directly to a printer
2278                                 if (target_name != "default")
2279                                         command += ' ' + lyxrc.print_to_printer + target_name + ' ';
2280                                 // as above....
2281                                 Systemcall::Starttype stype = use_gui ?
2282                                         Systemcall::DontWait : Systemcall::Wait;
2283                                 res = one.startscript(stype, command +
2284                                                 quoteName(dviname), filePath());
2285                         }
2286
2287                 } else {
2288                         // case 1: print to a file
2289                         FileName const filename(makeAbsPath(target_name, filePath()));
2290                         FileName const dvifile(makeAbsPath(dviname, path));
2291                         if (filename.exists()) {
2292                                 docstring text = bformat(
2293                                         _("The file %1$s already exists.\n\n"
2294                                           "Do you want to overwrite that file?"),
2295                                         makeDisplayPath(filename.absFileName()));
2296                                 if (Alert::prompt(_("Overwrite file?"),
2297                                                   text, 0, 1, _("&Overwrite"), _("&Cancel")) != 0)
2298                                         break;
2299                         }
2300                         command += ' ' + lyxrc.print_to_file
2301                                 + quoteName(filename.toFilesystemEncoding())
2302                                 + ' '
2303                                 + quoteName(dvifile.toFilesystemEncoding());
2304                         // as above....
2305                         Systemcall::Starttype stype = use_gui ?
2306                                 Systemcall::DontWait : Systemcall::Wait;
2307                         res = one.startscript(stype, command, filePath());
2308                 }
2309
2310                 if (res == 0)
2311                         dr.setError(false);
2312                 else {
2313                         dr.setMessage(_("Error running external commands."));
2314                         showPrintError(absFileName());
2315                 }
2316                 break;
2317         }
2318
2319         case LFUN_BUFFER_LANGUAGE: {
2320                 Language const * oldL = params().language;
2321                 Language const * newL = languages.getLanguage(argument);
2322                 if (!newL || oldL == newL)
2323                         break;
2324                 if (oldL->rightToLeft() == newL->rightToLeft() && !isMultiLingual()) {
2325                         changeLanguage(oldL, newL);
2326                         dr.forceBufferUpdate();
2327                 }
2328                 break;
2329         }
2330
2331         default:
2332                 dispatched = false;
2333                 break;
2334         }
2335         dr.dispatched(dispatched);
2336         undo().endUndoGroup();
2337 }
2338
2339
2340 void Buffer::changeLanguage(Language const * from, Language const * to)
2341 {
2342         LASSERT(from, /**/);
2343         LASSERT(to, /**/);
2344
2345         for_each(par_iterator_begin(),
2346                  par_iterator_end(),
2347                  bind(&Paragraph::changeLanguage, _1, params(), from, to));
2348 }
2349
2350
2351 bool Buffer::isMultiLingual() const
2352 {
2353         ParConstIterator end = par_iterator_end();
2354         for (ParConstIterator it = par_iterator_begin(); it != end; ++it)
2355                 if (it->isMultiLingual(params()))
2356                         return true;
2357
2358         return false;
2359 }
2360
2361
2362 std::set<Language const *> Buffer::getLanguages() const
2363 {
2364         std::set<Language const *> languages;
2365         getLanguages(languages);
2366         return languages;
2367 }
2368
2369
2370 void Buffer::getLanguages(std::set<Language const *> & languages) const
2371 {
2372         ParConstIterator end = par_iterator_end();
2373         // add the buffer language, even if it's not actively used
2374         languages.insert(language());
2375         // iterate over the paragraphs
2376         for (ParConstIterator it = par_iterator_begin(); it != end; ++it)
2377                 it->getLanguages(languages);
2378         // also children
2379         ListOfBuffers clist = getDescendents();
2380         ListOfBuffers::const_iterator cit = clist.begin();
2381         ListOfBuffers::const_iterator const cen = clist.end();
2382         for (; cit != cen; ++cit)
2383                 (*cit)->getLanguages(languages);
2384 }
2385
2386
2387 DocIterator Buffer::getParFromID(int const id) const
2388 {
2389         Buffer * buf = const_cast<Buffer *>(this);
2390         if (id < 0) {
2391                 // John says this is called with id == -1 from undo
2392                 lyxerr << "getParFromID(), id: " << id << endl;
2393                 return doc_iterator_end(buf);
2394         }
2395
2396         for (DocIterator it = doc_iterator_begin(buf); !it.atEnd(); it.forwardPar())
2397                 if (it.paragraph().id() == id)
2398                         return it;
2399
2400         return doc_iterator_end(buf);
2401 }
2402
2403
2404 bool Buffer::hasParWithID(int const id) const
2405 {
2406         return !getParFromID(id).atEnd();
2407 }
2408
2409
2410 ParIterator Buffer::par_iterator_begin()
2411 {
2412         return ParIterator(doc_iterator_begin(this));
2413 }
2414
2415
2416 ParIterator Buffer::par_iterator_end()
2417 {
2418         return ParIterator(doc_iterator_end(this));
2419 }
2420
2421
2422 ParConstIterator Buffer::par_iterator_begin() const
2423 {
2424         return ParConstIterator(doc_iterator_begin(this));
2425 }
2426
2427
2428 ParConstIterator Buffer::par_iterator_end() const
2429 {
2430         return ParConstIterator(doc_iterator_end(this));
2431 }
2432
2433
2434 Language const * Buffer::language() const
2435 {
2436         return params().language;
2437 }
2438
2439
2440 docstring const Buffer::B_(string const & l10n) const
2441 {
2442         return params().B_(l10n);
2443 }
2444
2445
2446 bool Buffer::isClean() const
2447 {
2448         return d->lyx_clean;
2449 }
2450
2451
2452 bool Buffer::isExternallyModified(CheckMethod method) const
2453 {
2454         LASSERT(d->filename.exists(), /**/);
2455         // if method == timestamp, check timestamp before checksum
2456         return (method == checksum_method
2457                 || d->timestamp_ != d->filename.lastModified())
2458                 && d->checksum_ != d->filename.checksum();
2459 }
2460
2461
2462 void Buffer::saveCheckSum() const
2463 {
2464         FileName const & file = d->filename;
2465
2466         file.refresh();
2467         if (file.exists()) {
2468                 d->timestamp_ = file.lastModified();
2469                 d->checksum_ = file.checksum();
2470         } else {
2471                 // in the case of save to a new file.
2472                 d->timestamp_ = 0;
2473                 d->checksum_ = 0;
2474         }
2475 }
2476
2477
2478 void Buffer::markClean() const
2479 {
2480         if (!d->lyx_clean) {
2481                 d->lyx_clean = true;
2482                 updateTitles();
2483         }
2484         // if the .lyx file has been saved, we don't need an
2485         // autosave
2486         d->bak_clean = true;
2487         d->undo_.markDirty();
2488 }
2489
2490
2491 void Buffer::setUnnamed(bool flag)
2492 {
2493         d->unnamed = flag;
2494 }
2495
2496
2497 bool Buffer::isUnnamed() const
2498 {
2499         return d->unnamed;
2500 }
2501
2502
2503 /// \note
2504 /// Don't check unnamed, here: isInternal() is used in
2505 /// newBuffer(), where the unnamed flag has not been set by anyone
2506 /// yet. Also, for an internal buffer, there should be no need for
2507 /// retrieving fileName() nor for checking if it is unnamed or not.
2508 bool Buffer::isInternal() const
2509 {
2510         return fileName().extension() == "internal";
2511 }
2512
2513
2514 void Buffer::markDirty()
2515 {
2516         if (d->lyx_clean) {
2517                 d->lyx_clean = false;
2518                 updateTitles();
2519         }
2520         d->bak_clean = false;
2521
2522         DepClean::iterator it = d->dep_clean.begin();
2523         DepClean::const_iterator const end = d->dep_clean.end();
2524
2525         for (; it != end; ++it)
2526                 it->second = false;
2527 }
2528
2529
2530 FileName Buffer::fileName() const
2531 {
2532         return d->filename;
2533 }
2534
2535
2536 string Buffer::absFileName() const
2537 {
2538         return d->filename.absFileName();
2539 }
2540
2541
2542 string Buffer::filePath() const
2543 {
2544         return d->filename.onlyPath().absFileName() + "/";
2545 }
2546
2547
2548 bool Buffer::isReadonly() const
2549 {
2550         return d->read_only;
2551 }
2552
2553
2554 void Buffer::setParent(Buffer const * buffer)
2555 {
2556         // Avoids recursive include.
2557         d->setParent(buffer == this ? 0 : buffer);
2558         updateMacros();
2559 }
2560
2561
2562 Buffer const * Buffer::parent() const
2563 {
2564         return d->parent();
2565 }
2566
2567
2568 ListOfBuffers Buffer::allRelatives() const
2569 {
2570         ListOfBuffers lb = masterBuffer()->getDescendents();
2571         lb.push_front(const_cast<Buffer *>(masterBuffer()));
2572         return lb;
2573 }
2574
2575
2576 Buffer const * Buffer::masterBuffer() const
2577 {
2578         // FIXME Should be make sure we are not in some kind
2579         // of recursive include? A -> B -> A will crash this.
2580         Buffer const * const pbuf = d->parent();
2581         if (!pbuf)
2582                 return this;
2583
2584         return pbuf->masterBuffer();
2585 }
2586
2587
2588 bool Buffer::isChild(Buffer * child) const
2589 {
2590         return d->children_positions.find(child) != d->children_positions.end();
2591 }
2592
2593
2594 DocIterator Buffer::firstChildPosition(Buffer const * child)
2595 {
2596         Impl::BufferPositionMap::iterator it;
2597         it = d->children_positions.find(child);
2598         if (it == d->children_positions.end())
2599                 return DocIterator(this);
2600         return it->second;
2601 }
2602
2603
2604 bool Buffer::hasChildren() const
2605 {
2606         return !d->children_positions.empty();
2607 }
2608
2609
2610 void Buffer::collectChildren(ListOfBuffers & clist, bool grand_children) const
2611 {
2612         // loop over children
2613         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
2614         Impl::BufferPositionMap::iterator end = d->children_positions.end();
2615         for (; it != end; ++it) {
2616                 Buffer * child = const_cast<Buffer *>(it->first);
2617                 // No duplicates
2618                 ListOfBuffers::const_iterator bit = find(clist.begin(), clist.end(), child);
2619                 if (bit != clist.end())
2620                         continue;
2621                 clist.push_back(child);
2622                 if (grand_children)
2623                         // there might be grandchildren
2624                         child->collectChildren(clist, true);
2625         }
2626 }
2627
2628
2629 ListOfBuffers Buffer::getChildren() const
2630 {
2631         ListOfBuffers v;
2632         collectChildren(v, false);
2633         return v;
2634 }
2635
2636
2637 ListOfBuffers Buffer::getDescendents() const
2638 {
2639         ListOfBuffers v;
2640         collectChildren(v, true);
2641         return v;
2642 }
2643
2644
2645 template<typename M>
2646 typename M::const_iterator greatest_below(M & m, typename M::key_type const & x)
2647 {
2648         if (m.empty())
2649                 return m.end();
2650
2651         typename M::const_iterator it = m.lower_bound(x);
2652         if (it == m.begin())
2653                 return m.end();
2654
2655         it--;
2656         return it;
2657 }
2658
2659
2660 MacroData const * Buffer::Impl::getBufferMacro(docstring const & name,
2661                                          DocIterator const & pos) const
2662 {
2663         LYXERR(Debug::MACROS, "Searching for " << to_ascii(name) << " at " << pos);
2664
2665         // if paragraphs have no macro context set, pos will be empty
2666         if (pos.empty())
2667                 return 0;
2668
2669         // we haven't found anything yet
2670         DocIterator bestPos = owner_->par_iterator_begin();
2671         MacroData const * bestData = 0;
2672
2673         // find macro definitions for name
2674         NamePositionScopeMacroMap::const_iterator nameIt = macros.find(name);
2675         if (nameIt != macros.end()) {
2676                 // find last definition in front of pos or at pos itself
2677                 PositionScopeMacroMap::const_iterator it
2678                         = greatest_below(nameIt->second, pos);
2679                 if (it != nameIt->second.end()) {
2680                         while (true) {
2681                                 // scope ends behind pos?
2682                                 if (pos < it->second.first) {
2683                                         // Looks good, remember this. If there
2684                                         // is no external macro behind this,
2685                                         // we found the right one already.
2686                                         bestPos = it->first;
2687                                         bestData = &it->second.second;
2688                                         break;
2689                                 }
2690
2691                                 // try previous macro if there is one
2692                                 if (it == nameIt->second.begin())
2693                                         break;
2694                                 it--;
2695                         }
2696                 }
2697         }
2698
2699         // find macros in included files
2700         PositionScopeBufferMap::const_iterator it
2701                 = greatest_below(position_to_children, pos);
2702         if (it == position_to_children.end())
2703                 // no children before
2704                 return bestData;
2705
2706         while (true) {
2707                 // do we know something better (i.e. later) already?
2708                 if (it->first < bestPos )
2709                         break;
2710
2711                 // scope ends behind pos?
2712                 if (pos < it->second.first
2713                         && (cloned_buffer_ ||
2714                             theBufferList().isLoaded(it->second.second))) {
2715                         // look for macro in external file
2716                         macro_lock = true;
2717                         MacroData const * data
2718                                 = it->second.second->getMacro(name, false);
2719                         macro_lock = false;
2720                         if (data) {
2721                                 bestPos = it->first;
2722                                 bestData = data;
2723                                 break;
2724                         }
2725                 }
2726
2727                 // try previous file if there is one
2728                 if (it == position_to_children.begin())
2729                         break;
2730                 --it;
2731         }
2732
2733         // return the best macro we have found
2734         return bestData;
2735 }
2736
2737
2738 MacroData const * Buffer::getMacro(docstring const & name,
2739         DocIterator const & pos, bool global) const
2740 {
2741         if (d->macro_lock)
2742                 return 0;
2743
2744         // query buffer macros
2745         MacroData const * data = d->getBufferMacro(name, pos);
2746         if (data != 0)
2747                 return data;
2748
2749         // If there is a master buffer, query that
2750         Buffer const * const pbuf = d->parent();
2751         if (pbuf) {
2752                 d->macro_lock = true;
2753                 MacroData const * macro = pbuf->getMacro(
2754                         name, *this, false);
2755                 d->macro_lock = false;
2756                 if (macro)
2757                         return macro;
2758         }
2759
2760         if (global) {
2761                 data = MacroTable::globalMacros().get(name);
2762                 if (data != 0)
2763                         return data;
2764         }
2765
2766         return 0;
2767 }
2768
2769
2770 MacroData const * Buffer::getMacro(docstring const & name, bool global) const
2771 {
2772         // set scope end behind the last paragraph
2773         DocIterator scope = par_iterator_begin();
2774         scope.pit() = scope.lastpit() + 1;
2775
2776         return getMacro(name, scope, global);
2777 }
2778
2779
2780 MacroData const * Buffer::getMacro(docstring const & name,
2781         Buffer const & child, bool global) const
2782 {
2783         // look where the child buffer is included first
2784         Impl::BufferPositionMap::iterator it = d->children_positions.find(&child);
2785         if (it == d->children_positions.end())
2786                 return 0;
2787
2788         // check for macros at the inclusion position
2789         return getMacro(name, it->second, global);
2790 }
2791
2792
2793 void Buffer::Impl::updateMacros(DocIterator & it, DocIterator & scope)
2794 {
2795         pit_type const lastpit = it.lastpit();
2796
2797         // look for macros in each paragraph
2798         while (it.pit() <= lastpit) {
2799                 Paragraph & par = it.paragraph();
2800
2801                 // iterate over the insets of the current paragraph
2802                 InsetList const & insets = par.insetList();
2803                 InsetList::const_iterator iit = insets.begin();
2804                 InsetList::const_iterator end = insets.end();
2805                 for (; iit != end; ++iit) {
2806                         it.pos() = iit->pos;
2807
2808                         // is it a nested text inset?
2809                         if (iit->inset->asInsetText()) {
2810                                 // Inset needs its own scope?
2811                                 InsetText const * itext = iit->inset->asInsetText();
2812                                 bool newScope = itext->isMacroScope();
2813
2814                                 // scope which ends just behind the inset
2815                                 DocIterator insetScope = it;
2816                                 ++insetScope.pos();
2817
2818                                 // collect macros in inset
2819                                 it.push_back(CursorSlice(*iit->inset));
2820                                 updateMacros(it, newScope ? insetScope : scope);
2821                                 it.pop_back();
2822                                 continue;
2823                         }
2824
2825                         if (iit->inset->asInsetTabular()) {
2826                                 CursorSlice slice(*iit->inset);
2827                                 size_t const numcells = slice.nargs();
2828                                 for (; slice.idx() < numcells; slice.forwardIdx()) {
2829                                         it.push_back(slice);
2830                                         updateMacros(it, scope);
2831                                         it.pop_back();
2832                                 }
2833                                 continue;
2834                         }
2835
2836                         // is it an external file?
2837                         if (iit->inset->lyxCode() == INCLUDE_CODE) {
2838                                 // get buffer of external file
2839                                 InsetInclude const & inset =
2840                                         static_cast<InsetInclude const &>(*iit->inset);
2841                                 macro_lock = true;
2842                                 Buffer * child = inset.getChildBuffer();
2843                                 macro_lock = false;
2844                                 if (!child)
2845                                         continue;
2846
2847                                 // register its position, but only when it is
2848                                 // included first in the buffer
2849                                 if (children_positions.find(child) ==
2850                                         children_positions.end())
2851                                                 children_positions[child] = it;
2852
2853                                 // register child with its scope
2854                                 position_to_children[it] = Impl::ScopeBuffer(scope, child);
2855                                 continue;
2856                         }
2857
2858                         InsetMath * im = iit->inset->asInsetMath();
2859                         if (doing_export && im)  {
2860                                 InsetMathHull * hull = im->asHullInset();
2861                                 if (hull)
2862                                         hull->recordLocation(it);
2863                         }
2864
2865                         if (iit->inset->lyxCode() != MATHMACRO_CODE)
2866                                 continue;
2867
2868                         // get macro data
2869                         MathMacroTemplate & macroTemplate =
2870                                 *iit->inset->asInsetMath()->asMacroTemplate();
2871                         MacroContext mc(owner_, it);
2872                         macroTemplate.updateToContext(mc);
2873
2874                         // valid?
2875                         bool valid = macroTemplate.validMacro();
2876                         // FIXME: Should be fixNameAndCheckIfValid() in fact,
2877                         // then the BufferView's cursor will be invalid in
2878                         // some cases which leads to crashes.
2879                         if (!valid)
2880                                 continue;
2881
2882                         // register macro
2883                         // FIXME (Abdel), I don't understandt why we pass 'it' here
2884                         // instead of 'macroTemplate' defined above... is this correct?
2885                         macros[macroTemplate.name()][it] =
2886                                 Impl::ScopeMacro(scope, MacroData(const_cast<Buffer *>(owner_), it));
2887                 }
2888
2889                 // next paragraph
2890                 it.pit()++;
2891                 it.pos() = 0;
2892         }
2893 }
2894
2895
2896 void Buffer::updateMacros() const
2897 {
2898         if (d->macro_lock)
2899                 return;
2900
2901         LYXERR(Debug::MACROS, "updateMacro of " << d->filename.onlyFileName());
2902
2903         // start with empty table
2904         d->macros.clear();
2905         d->children_positions.clear();
2906         d->position_to_children.clear();
2907
2908         // Iterate over buffer, starting with first paragraph
2909         // The scope must be bigger than any lookup DocIterator
2910         // later. For the global lookup, lastpit+1 is used, hence
2911         // we use lastpit+2 here.
2912         DocIterator it = par_iterator_begin();
2913         DocIterator outerScope = it;
2914         outerScope.pit() = outerScope.lastpit() + 2;
2915         d->updateMacros(it, outerScope);
2916 }
2917
2918
2919 void Buffer::getUsedBranches(std::list<docstring> & result, bool const from_master) const
2920 {
2921         InsetIterator it  = inset_iterator_begin(inset());
2922         InsetIterator const end = inset_iterator_end(inset());
2923         for (; it != end; ++it) {
2924                 if (it->lyxCode() == BRANCH_CODE) {
2925                         InsetBranch & br = static_cast<InsetBranch &>(*it);
2926                         docstring const name = br.branch();
2927                         if (!from_master && !params().branchlist().find(name))
2928                                 result.push_back(name);
2929                         else if (from_master && !masterBuffer()->params().branchlist().find(name))
2930                                 result.push_back(name);
2931                         continue;
2932                 }
2933                 if (it->lyxCode() == INCLUDE_CODE) {
2934                         // get buffer of external file
2935                         InsetInclude const & ins =
2936                                 static_cast<InsetInclude const &>(*it);
2937                         Buffer * child = ins.getChildBuffer();
2938                         if (!child)
2939                                 continue;
2940                         child->getUsedBranches(result, true);
2941                 }
2942         }
2943         // remove duplicates
2944         result.unique();
2945 }
2946
2947
2948 void Buffer::updateMacroInstances(UpdateType utype) const
2949 {
2950         LYXERR(Debug::MACROS, "updateMacroInstances for "
2951                 << d->filename.onlyFileName());
2952         DocIterator it = doc_iterator_begin(this);
2953         it.forwardInset();
2954         DocIterator const end = doc_iterator_end(this);
2955         for (; it != end; it.forwardInset()) {
2956                 // look for MathData cells in InsetMathNest insets
2957                 InsetMath * minset = it.nextInset()->asInsetMath();
2958                 if (!minset)
2959                         continue;
2960
2961                 // update macro in all cells of the InsetMathNest
2962                 DocIterator::idx_type n = minset->nargs();
2963                 MacroContext mc = MacroContext(this, it);
2964                 for (DocIterator::idx_type i = 0; i < n; ++i) {
2965                         MathData & data = minset->cell(i);
2966                         data.updateMacros(0, mc, utype);
2967                 }
2968         }
2969 }
2970
2971
2972 void Buffer::listMacroNames(MacroNameSet & macros) const
2973 {
2974         if (d->macro_lock)
2975                 return;
2976
2977         d->macro_lock = true;
2978
2979         // loop over macro names
2980         Impl::NamePositionScopeMacroMap::iterator nameIt = d->macros.begin();
2981         Impl::NamePositionScopeMacroMap::iterator nameEnd = d->macros.end();
2982         for (; nameIt != nameEnd; ++nameIt)
2983                 macros.insert(nameIt->first);
2984
2985         // loop over children
2986         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
2987         Impl::BufferPositionMap::iterator end = d->children_positions.end();
2988         for (; it != end; ++it)
2989                 it->first->listMacroNames(macros);
2990
2991         // call parent
2992         Buffer const * const pbuf = d->parent();
2993         if (pbuf)
2994                 pbuf->listMacroNames(macros);
2995
2996         d->macro_lock = false;
2997 }
2998
2999
3000 void Buffer::listParentMacros(MacroSet & macros, LaTeXFeatures & features) const
3001 {
3002         Buffer const * const pbuf = d->parent();
3003         if (!pbuf)
3004                 return;
3005
3006         MacroNameSet names;
3007         pbuf->listMacroNames(names);
3008
3009         // resolve macros
3010         MacroNameSet::iterator it = names.begin();
3011         MacroNameSet::iterator end = names.end();
3012         for (; it != end; ++it) {
3013                 // defined?
3014                 MacroData const * data =
3015                 pbuf->getMacro(*it, *this, false);
3016                 if (data) {
3017                         macros.insert(data);
3018
3019                         // we cannot access the original MathMacroTemplate anymore
3020                         // here to calls validate method. So we do its work here manually.
3021                         // FIXME: somehow make the template accessible here.
3022                         if (data->optionals() > 0)
3023                                 features.require("xargs");
3024                 }
3025         }
3026 }
3027
3028
3029 Buffer::References & Buffer::references(docstring const & label)
3030 {
3031         if (d->parent())
3032                 return const_cast<Buffer *>(masterBuffer())->references(label);
3033
3034         RefCache::iterator it = d->ref_cache_.find(label);
3035         if (it != d->ref_cache_.end())
3036                 return it->second.second;
3037
3038         static InsetLabel const * dummy_il = 0;
3039         static References const dummy_refs;
3040         it = d->ref_cache_.insert(
3041                 make_pair(label, make_pair(dummy_il, dummy_refs))).first;
3042         return it->second.second;
3043 }
3044
3045
3046 Buffer::References const & Buffer::references(docstring const & label) const
3047 {
3048         return const_cast<Buffer *>(this)->references(label);
3049 }
3050
3051
3052 void Buffer::setInsetLabel(docstring const & label, InsetLabel const * il)
3053 {
3054         masterBuffer()->d->ref_cache_[label].first = il;
3055 }
3056
3057
3058 InsetLabel const * Buffer::insetLabel(docstring const & label) const
3059 {
3060         return masterBuffer()->d->ref_cache_[label].first;
3061 }
3062
3063
3064 void Buffer::clearReferenceCache() const
3065 {
3066         if (!d->parent())
3067                 d->ref_cache_.clear();
3068 }
3069
3070
3071 void Buffer::changeRefsIfUnique(docstring const & from, docstring const & to,
3072         InsetCode code)
3073 {
3074         //FIXME: This does not work for child documents yet.
3075         LASSERT(code == CITE_CODE, /**/);
3076
3077         reloadBibInfoCache();
3078
3079         // Check if the label 'from' appears more than once
3080         BiblioInfo const & keys = masterBibInfo();
3081         BiblioInfo::const_iterator bit  = keys.begin();
3082         BiblioInfo::const_iterator bend = keys.end();
3083         vector<docstring> labels;
3084
3085         for (; bit != bend; ++bit)
3086                 // FIXME UNICODE
3087                 labels.push_back(bit->first);
3088
3089         if (count(labels.begin(), labels.end(), from) > 1)
3090                 return;
3091
3092         string const paramName = "key";
3093         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
3094                 if (it->lyxCode() == code) {
3095                         InsetCommand * inset = it->asInsetCommand();
3096                         if (!inset)
3097                                 continue;
3098                         docstring const oldValue = inset->getParam(paramName);
3099                         if (oldValue == from)
3100                                 inset->setParam(paramName, to);
3101                 }
3102         }
3103 }
3104
3105
3106 void Buffer::getSourceCode(odocstream & os, string const format,
3107                            pit_type par_begin, pit_type par_end,
3108                            bool full_source) const
3109 {
3110         OutputParams runparams(&params().encoding());
3111         runparams.nice = true;
3112         runparams.flavor = getOutputFlavor(format);
3113         runparams.linelen = lyxrc.plaintext_linelen;
3114         // No side effect of file copying and image conversion
3115         runparams.dryrun = true;
3116
3117         if (full_source) {
3118                 os << "% " << _("Preview source code") << "\n\n";
3119                 d->texrow.reset();
3120                 d->texrow.newline();
3121                 d->texrow.newline();
3122                 if (isDocBook())
3123                         writeDocBookSource(os, absFileName(), runparams, false);
3124                 else if (runparams.flavor == OutputParams::HTML)
3125                         writeLyXHTMLSource(os, runparams, false);
3126                 else {
3127                         // latex or literate
3128                         otexstream ots(os, d->texrow);
3129                         writeLaTeXSource(ots, string(), runparams, true, true);
3130                 }
3131         } else {
3132                 runparams.par_begin = par_begin;
3133                 runparams.par_end = par_end;
3134                 if (par_begin + 1 == par_end) {
3135                         os << "% "
3136                            << bformat(_("Preview source code for paragraph %1$d"), par_begin)
3137                            << "\n\n";
3138                 } else {
3139                         os << "% "
3140                            << bformat(_("Preview source code from paragraph %1$s to %2$s"),
3141                                         convert<docstring>(par_begin),
3142                                         convert<docstring>(par_end - 1))
3143                            << "\n\n";
3144                 }
3145                 TexRow texrow;
3146                 texrow.reset();
3147                 texrow.newline();
3148                 texrow.newline();
3149                 // output paragraphs
3150                 if (isDocBook())
3151                         docbookParagraphs(text(), *this, os, runparams);
3152                 else if (runparams.flavor == OutputParams::HTML) {
3153                         XHTMLStream xs(os);
3154                         xhtmlParagraphs(text(), *this, xs, runparams);
3155                 } else {
3156                         // latex or literate
3157                         otexstream ots(os, texrow);
3158                         latexParagraphs(*this, text(), ots, runparams);
3159                 }
3160         }
3161 }
3162
3163
3164 ErrorList & Buffer::errorList(string const & type) const
3165 {
3166         static ErrorList emptyErrorList;
3167         map<string, ErrorList>::iterator it = d->errorLists.find(type);
3168         if (it == d->errorLists.end())
3169                 return emptyErrorList;
3170
3171         return it->second;
3172 }
3173
3174
3175 void Buffer::updateTocItem(std::string const & type,
3176         DocIterator const & dit) const
3177 {
3178         if (d->gui_)
3179                 d->gui_->updateTocItem(type, dit);
3180 }
3181
3182
3183 void Buffer::structureChanged() const
3184 {
3185         if (d->gui_)
3186                 d->gui_->structureChanged();
3187 }
3188
3189
3190 void Buffer::errors(string const & err, bool from_master) const
3191 {
3192         if (d->gui_)
3193                 d->gui_->errors(err, from_master);
3194 }
3195
3196
3197 void Buffer::message(docstring const & msg) const
3198 {
3199         if (d->gui_)
3200                 d->gui_->message(msg);
3201 }
3202
3203
3204 void Buffer::setBusy(bool on) const
3205 {
3206         if (d->gui_)
3207                 d->gui_->setBusy(on);
3208 }
3209
3210
3211 void Buffer::updateTitles() const
3212 {
3213         if (d->wa_)
3214                 d->wa_->updateTitles();
3215 }
3216
3217
3218 void Buffer::resetAutosaveTimers() const
3219 {
3220         if (d->gui_)
3221                 d->gui_->resetAutosaveTimers();
3222 }
3223
3224
3225 bool Buffer::hasGuiDelegate() const
3226 {
3227         return d->gui_;
3228 }
3229
3230
3231 void Buffer::setGuiDelegate(frontend::GuiBufferDelegate * gui)
3232 {
3233         d->gui_ = gui;
3234 }
3235
3236
3237
3238 namespace {
3239
3240 class AutoSaveBuffer : public ForkedProcess {
3241 public:
3242         ///
3243         AutoSaveBuffer(Buffer const & buffer, FileName const & fname)
3244                 : buffer_(buffer), fname_(fname) {}
3245         ///
3246         virtual shared_ptr<ForkedProcess> clone() const
3247         {
3248                 return shared_ptr<ForkedProcess>(new AutoSaveBuffer(*this));
3249         }
3250         ///
3251         int start()
3252         {
3253                 command_ = to_utf8(bformat(_("Auto-saving %1$s"),
3254                                                  from_utf8(fname_.absFileName())));
3255                 return run(DontWait);
3256         }
3257 private:
3258         ///
3259         virtual int generateChild();
3260         ///
3261         Buffer const & buffer_;
3262         FileName fname_;
3263 };
3264
3265
3266 int AutoSaveBuffer::generateChild()
3267 {
3268 #if defined(__APPLE__)
3269         /* FIXME fork() is not usable for autosave on Mac OS X 10.6 (snow leopard)
3270          *   We should use something else like threads.
3271          *
3272          * Since I do not know how to determine at run time what is the OS X
3273          * version, I just disable forking altogether for now (JMarc)
3274          */
3275         pid_t const pid = -1;
3276 #else
3277         // tmp_ret will be located (usually) in /tmp
3278         // will that be a problem?
3279         // Note that this calls ForkedCalls::fork(), so it's
3280         // ok cross-platform.
3281         pid_t const pid = fork();
3282         // If you want to debug the autosave
3283         // you should set pid to -1, and comment out the fork.
3284         if (pid != 0 && pid != -1)
3285                 return pid;
3286 #endif
3287
3288         // pid = -1 signifies that lyx was unable
3289         // to fork. But we will do the save
3290         // anyway.
3291         bool failed = false;
3292         FileName const tmp_ret = FileName::tempName("lyxauto");
3293         if (!tmp_ret.empty()) {
3294                 buffer_.writeFile(tmp_ret);
3295                 // assume successful write of tmp_ret
3296                 if (!tmp_ret.moveTo(fname_))
3297                         failed = true;
3298         } else
3299                 failed = true;
3300
3301         if (failed) {
3302                 // failed to write/rename tmp_ret so try writing direct
3303                 if (!buffer_.writeFile(fname_)) {
3304                         // It is dangerous to do this in the child,
3305                         // but safe in the parent, so...
3306                         if (pid == -1) // emit message signal.
3307                                 buffer_.message(_("Autosave failed!"));
3308                 }
3309         }
3310
3311         if (pid == 0) // we are the child so...
3312                 _exit(0);
3313
3314         return pid;
3315 }
3316
3317 } // namespace anon
3318
3319
3320 FileName Buffer::getEmergencyFileName() const
3321 {
3322         return FileName(d->filename.absFileName() + ".emergency");
3323 }
3324
3325
3326 FileName Buffer::getAutosaveFileName() const
3327 {
3328         // if the document is unnamed try to save in the backup dir, else
3329         // in the default document path, and as a last try in the filePath,
3330         // which will most often be the temporary directory
3331         string fpath;
3332         if (isUnnamed())
3333                 fpath = lyxrc.backupdir_path.empty() ? lyxrc.document_path
3334                         : lyxrc.backupdir_path;
3335         if (!isUnnamed() || fpath.empty() || !FileName(fpath).exists())
3336                 fpath = filePath();
3337
3338         string const fname = "#" + d->filename.onlyFileName() + "#";
3339
3340         return makeAbsPath(fname, fpath);
3341 }
3342
3343
3344 void Buffer::removeAutosaveFile() const
3345 {
3346         FileName const f = getAutosaveFileName();
3347         if (f.exists())
3348                 f.removeFile();
3349 }
3350
3351
3352 void Buffer::moveAutosaveFile(support::FileName const & oldauto) const
3353 {
3354         FileName const newauto = getAutosaveFileName();
3355         oldauto.refresh();
3356         if (newauto != oldauto && oldauto.exists())
3357                 if (!oldauto.moveTo(newauto))
3358                         LYXERR0("Unable to move autosave file `" << oldauto << "'!");
3359 }
3360
3361
3362 bool Buffer::autoSave() const
3363 {
3364         Buffer const * buf = d->cloned_buffer_ ? d->cloned_buffer_ : this;
3365         if (buf->d->bak_clean || isReadonly())
3366                 return true;
3367
3368         message(_("Autosaving current document..."));
3369         buf->d->bak_clean = true;
3370
3371         FileName const fname = getAutosaveFileName();
3372         if (d->cloned_buffer_) {
3373                 // If this buffer is cloned, we assume that
3374                 // we are running in a separate thread already.
3375                 FileName const tmp_ret = FileName::tempName("lyxauto");
3376                 if (!tmp_ret.empty()) {
3377                         writeFile(tmp_ret);
3378                         // assume successful write of tmp_ret
3379                         if (tmp_ret.moveTo(fname))
3380                                 return true;
3381                 }
3382                 // failed to write/rename tmp_ret so try writing direct
3383                 return writeFile(fname);
3384         } else {
3385                 /// This function is deprecated as the frontend needs to take care
3386                 /// of cloning the buffer and autosaving it in another thread. It
3387                 /// is still here to allow (QT_VERSION < 0x040400).
3388                 AutoSaveBuffer autosave(*this, fname);
3389                 autosave.start();
3390                 return true;
3391         }
3392 }
3393
3394
3395 string Buffer::bufferFormat() const
3396 {
3397         string format = params().documentClass().outputFormat();
3398         if (format == "latex") {
3399                 if (params().useNonTeXFonts)
3400                         return "xetex";
3401                 if (params().encoding().package() == Encoding::japanese)
3402                         return "platex";
3403         }
3404         return format;
3405 }
3406
3407
3408 string Buffer::getDefaultOutputFormat() const
3409 {
3410         if (!params().default_output_format.empty()
3411             && params().default_output_format != "default")
3412                 return params().default_output_format;
3413         if (isDocBook()
3414             || params().useNonTeXFonts
3415             || params().encoding().package() == Encoding::japanese) {
3416                 vector<Format const *> const formats = exportableFormats(true);
3417                 if (formats.empty())
3418                         return string();
3419                 // return the first we find
3420                 return formats.front()->name();
3421         }
3422         return lyxrc.default_view_format;
3423 }
3424
3425
3426 OutputParams::FLAVOR Buffer::getOutputFlavor(string const format) const
3427 {
3428         string const dformat = (format.empty() || format == "default") ?
3429                 getDefaultOutputFormat() : format;
3430         DefaultFlavorCache::const_iterator it =
3431                 default_flavors_.find(dformat);
3432
3433         if (it != default_flavors_.end())
3434                 return it->second;
3435
3436         OutputParams::FLAVOR result = OutputParams::LATEX;
3437
3438         if (dformat == "xhtml")
3439                 result = OutputParams::HTML;
3440         else {
3441                 // Try to determine flavor of default output format
3442                 vector<string> backs = backends();
3443                 if (find(backs.begin(), backs.end(), dformat) == backs.end()) {
3444                         // Get shortest path to format
3445                         Graph::EdgePath path;
3446                         for (vector<string>::const_iterator it = backs.begin();
3447                             it != backs.end(); ++it) {
3448                                 Graph::EdgePath p = theConverters().getPath(*it, dformat);
3449                                 if (!p.empty() && (path.empty() || p.size() < path.size())) {
3450                                         path = p;
3451                                 }
3452                         }
3453                         if (!path.empty())
3454                                 result = theConverters().getFlavor(path);
3455                 }
3456         }
3457         // cache this flavor
3458         default_flavors_[dformat] = result;
3459         return result;
3460 }
3461
3462
3463 namespace {
3464         // helper class, to guarantee this gets reset properly
3465         class MarkAsExporting   {
3466         public:
3467                 MarkAsExporting(Buffer const * buf) : buf_(buf)
3468                 {
3469                         LASSERT(buf_, /* */);
3470                         buf_->setExportStatus(true);
3471                 }
3472                 ~MarkAsExporting()
3473                 {
3474                         buf_->setExportStatus(false);
3475                 }
3476         private:
3477                 Buffer const * const buf_;
3478         };
3479 }
3480
3481
3482 void Buffer::setExportStatus(bool e) const
3483 {
3484         d->doing_export = e;
3485         ListOfBuffers clist = getDescendents();
3486         ListOfBuffers::const_iterator cit = clist.begin();
3487         ListOfBuffers::const_iterator const cen = clist.end();
3488         for (; cit != cen; ++cit)
3489                 (*cit)->d->doing_export = e;
3490 }
3491
3492
3493 bool Buffer::isExporting() const
3494 {
3495         return d->doing_export;
3496 }
3497
3498
3499 bool Buffer::doExport(string const & format, bool put_in_tempdir,
3500         bool includeall, string & result_file) const
3501 {
3502         MarkAsExporting exporting(this);
3503         string backend_format;
3504         OutputParams runparams(&params().encoding());
3505         runparams.flavor = OutputParams::LATEX;
3506         runparams.linelen = lyxrc.plaintext_linelen;
3507         runparams.includeall = includeall;
3508         vector<string> backs = backends();
3509         Converters converters = theConverters();
3510         if (find(backs.begin(), backs.end(), format) == backs.end()) {
3511                 // Get shortest path to format
3512                 converters.buildGraph();
3513                 Graph::EdgePath path;
3514                 for (vector<string>::const_iterator it = backs.begin();
3515                      it != backs.end(); ++it) {
3516                         Graph::EdgePath p = converters.getPath(*it, format);
3517                         if (!p.empty() && (path.empty() || p.size() < path.size())) {
3518                                 backend_format = *it;
3519                                 path = p;
3520                         }
3521                 }
3522                 if (path.empty()) {
3523                         if (!put_in_tempdir) {
3524                                 // Only show this alert if this is an export to a non-temporary
3525                                 // file (not for previewing).
3526                                 Alert::error(_("Couldn't export file"), bformat(
3527                                         _("No information for exporting the format %1$s."),
3528                                         formats.prettyName(format)));
3529                         }
3530                         return false;
3531                 }
3532                 runparams.flavor = converters.getFlavor(path);
3533
3534         } else {
3535                 backend_format = format;
3536                 // FIXME: Don't hardcode format names here, but use a flag
3537                 if (backend_format == "pdflatex")
3538                         runparams.flavor = OutputParams::PDFLATEX;
3539                 else if (backend_format == "luatex")
3540                         runparams.flavor = OutputParams::LUATEX;
3541                 else if (backend_format == "xetex")
3542                         runparams.flavor = OutputParams::XETEX;
3543         }
3544
3545         string filename = latexName(false);
3546         filename = addName(temppath(), filename);
3547         filename = changeExtension(filename,
3548                                    formats.extension(backend_format));
3549
3550         // Plain text backend
3551         if (backend_format == "text") {
3552                 runparams.flavor = OutputParams::TEXT;
3553                 writePlaintextFile(*this, FileName(filename), runparams);
3554         }
3555         // HTML backend
3556         else if (backend_format == "xhtml") {
3557                 runparams.flavor = OutputParams::HTML;
3558                 switch (params().html_math_output) {
3559                 case BufferParams::MathML:
3560                         runparams.math_flavor = OutputParams::MathAsMathML;
3561                         break;
3562                 case BufferParams::HTML:
3563                         runparams.math_flavor = OutputParams::MathAsHTML;
3564                         break;
3565                 case BufferParams::Images:
3566                         runparams.math_flavor = OutputParams::MathAsImages;
3567                         break;
3568                 case BufferParams::LaTeX:
3569                         runparams.math_flavor = OutputParams::MathAsLaTeX;
3570                         break;
3571                 }
3572                 makeLyXHTMLFile(FileName(filename), runparams);
3573         } else if (backend_format == "lyx")
3574                 writeFile(FileName(filename));
3575         // Docbook backend
3576         else if (isDocBook()) {
3577                 runparams.nice = !put_in_tempdir;
3578                 makeDocBookFile(FileName(filename), runparams);
3579         }
3580         // LaTeX backend
3581         else if (backend_format == format) {
3582                 runparams.nice = true;
3583                 if (!makeLaTeXFile(FileName(filename), string(), runparams)) {
3584                         if (d->cloned_buffer_) {
3585                                 d->cloned_buffer_->d->errorLists["Export"] =
3586                                         d->errorLists["Export"];
3587                         }
3588                         return false;
3589                 }
3590         } else if (!lyxrc.tex_allows_spaces
3591                    && contains(filePath(), ' ')) {
3592                 Alert::error(_("File name error"),
3593                            _("The directory path to the document cannot contain spaces."));
3594                 return false;
3595         } else {
3596                 runparams.nice = false;
3597                 if (!makeLaTeXFile(FileName(filename), filePath(), runparams)) {
3598                         if (d->cloned_buffer_) {
3599                                 d->cloned_buffer_->d->errorLists["Export"] =
3600                                         d->errorLists["Export"];
3601                         }
3602                         return false;
3603                 }
3604         }
3605
3606         string const error_type = (format == "program")
3607                 ? "Build" : bufferFormat();
3608         ErrorList & error_list = d->errorLists[error_type];
3609         string const ext = formats.extension(format);
3610         FileName const tmp_result_file(changeExtension(filename, ext));
3611         bool const success = converters.convert(this, FileName(filename),
3612                 tmp_result_file, FileName(absFileName()), backend_format, format,
3613                 error_list);
3614
3615         // Emit the signal to show the error list or copy it back to the
3616         // cloned Buffer so that it can be emitted afterwards.
3617         if (format != backend_format) {
3618                 if (d->cloned_buffer_) {
3619                         d->cloned_buffer_->d->errorLists[error_type] =
3620                                 d->errorLists[error_type];
3621                 } else
3622                         errors(error_type);
3623                 // also to the children, in case of master-buffer-view
3624                 ListOfBuffers clist = getDescendents();
3625                 ListOfBuffers::const_iterator cit = clist.begin();
3626                 ListOfBuffers::const_iterator const cen = clist.end();
3627                 for (; cit != cen; ++cit) {
3628                         if (d->cloned_buffer_) {
3629                                 // Enable reverse search by copying back the
3630                                 // texrow object to the cloned buffer.
3631                                 // FIXME: this is not thread safe.
3632                                 (*cit)->d->cloned_buffer_->d->texrow = (*cit)->d->texrow;
3633                                 (*cit)->d->cloned_buffer_->d->errorLists[error_type] =
3634                                         (*cit)->d->errorLists[error_type];
3635                         } else
3636                                 (*cit)->errors(error_type, true);
3637                 }
3638         }
3639
3640         if (d->cloned_buffer_) {
3641                 // Enable reverse dvi or pdf to work by copying back the texrow
3642                 // object to the cloned buffer.
3643                 // FIXME: There is a possibility of concurrent access to texrow
3644                 // here from the main GUI thread that should be securized.
3645                 d->cloned_buffer_->d->texrow = d->texrow;
3646                 string const error_type = bufferFormat();
3647                 d->cloned_buffer_->d->errorLists[error_type] = d->errorLists[error_type];
3648         }
3649
3650         if (!success)
3651                 return false;
3652
3653         if (put_in_tempdir) {
3654                 result_file = tmp_result_file.absFileName();
3655                 return true;
3656         }
3657
3658         result_file = changeExtension(d->exportFileName().absFileName(), ext);
3659         // We need to copy referenced files (e. g. included graphics
3660         // if format == "dvi") to the result dir.
3661         vector<ExportedFile> const files =
3662                 runparams.exportdata->externalFiles(format);
3663         string const dest = onlyPath(result_file);
3664         bool use_force = use_gui ? lyxrc.export_overwrite == ALL_FILES
3665                                  : force_overwrite == ALL_FILES;
3666         CopyStatus status = use_force ? FORCE : SUCCESS;
3667
3668         vector<ExportedFile>::const_iterator it = files.begin();
3669         vector<ExportedFile>::const_iterator const en = files.end();
3670         for (; it != en && status != CANCEL; ++it) {
3671                 string const fmt = formats.getFormatFromFile(it->sourceName);
3672                 status = copyFile(fmt, it->sourceName,
3673                         makeAbsPath(it->exportName, dest),
3674                         it->exportName, status == FORCE);
3675         }
3676
3677         if (status == CANCEL) {
3678                 message(_("Document export cancelled."));
3679         } else if (tmp_result_file.exists()) {
3680                 // Finally copy the main file
3681                 use_force = use_gui ? lyxrc.export_overwrite != NO_FILES
3682                                     : force_overwrite != NO_FILES;
3683                 if (status == SUCCESS && use_force)
3684                         status = FORCE;
3685                 status = copyFile(format, tmp_result_file,
3686                         FileName(result_file), result_file,
3687                         status == FORCE);
3688                 message(bformat(_("Document exported as %1$s "
3689                         "to file `%2$s'"),
3690                         formats.prettyName(format),
3691                         makeDisplayPath(result_file)));
3692         } else {
3693                 // This must be a dummy converter like fax (bug 1888)
3694                 message(bformat(_("Document exported as %1$s"),
3695                         formats.prettyName(format)));
3696         }
3697
3698         return true;
3699 }
3700
3701
3702 bool Buffer::doExport(string const & format, bool put_in_tempdir,
3703                       bool includeall) const
3704 {
3705         string result_file;
3706         // (1) export with all included children (omit \includeonly)
3707         if (includeall && !doExport(format, put_in_tempdir, true, result_file))
3708                 return false;
3709         // (2) export with included children only
3710         return doExport(format, put_in_tempdir, false, result_file);
3711 }
3712
3713
3714 bool Buffer::preview(string const & format, bool includeall) const
3715 {
3716         MarkAsExporting exporting(this);
3717         string result_file;
3718         // (1) export with all included children (omit \includeonly)
3719         if (includeall && !doExport(format, true, true))
3720                 return false;
3721         // (2) export with included children only
3722         if (!doExport(format, true, false, result_file))
3723                 return false;
3724         return formats.view(*this, FileName(result_file), format);
3725 }
3726
3727
3728 bool Buffer::isExportable(string const & format) const
3729 {
3730         vector<string> backs = backends();
3731         for (vector<string>::const_iterator it = backs.begin();
3732              it != backs.end(); ++it)
3733                 if (theConverters().isReachable(*it, format))
3734                         return true;
3735         return false;
3736 }
3737
3738
3739 vector<Format const *> Buffer::exportableFormats(bool only_viewable) const
3740 {
3741         vector<string> const backs = backends();
3742         set<string> excludes;
3743         if (params().useNonTeXFonts) {
3744                 excludes.insert("latex");
3745                 excludes.insert("pdflatex");
3746         }
3747         vector<Format const *> result =
3748                 theConverters().getReachable(backs[0], only_viewable, true, excludes);
3749         for (vector<string>::const_iterator it = backs.begin() + 1;
3750              it != backs.end(); ++it) {
3751                 vector<Format const *>  r =
3752                         theConverters().getReachable(*it, only_viewable, false, excludes);
3753                 result.insert(result.end(), r.begin(), r.end());
3754         }
3755         return result;
3756 }
3757
3758
3759 vector<string> Buffer::backends() const
3760 {
3761         vector<string> v;
3762         v.push_back(bufferFormat());
3763         // FIXME: Don't hardcode format names here, but use a flag
3764         if (v.back() == "latex") {
3765                 v.push_back("pdflatex");
3766                 v.push_back("luatex");
3767                 v.push_back("xetex");
3768         } else if (v.back() == "xetex")
3769                 v.push_back("luatex");
3770         v.push_back("xhtml");
3771         v.push_back("text");
3772         v.push_back("lyx");
3773         return v;
3774 }
3775
3776
3777 Buffer::ReadStatus Buffer::extractFromVC()
3778 {
3779         bool const found = LyXVC::file_not_found_hook(d->filename);
3780         if (!found)
3781                 return ReadFileNotFound;
3782         if (!d->filename.isReadableFile())
3783                 return ReadVCError;
3784         return ReadSuccess;
3785 }
3786
3787
3788 Buffer::ReadStatus Buffer::loadEmergency()
3789 {
3790         FileName const emergencyFile = getEmergencyFileName();
3791         if (!emergencyFile.exists()
3792                   || emergencyFile.lastModified() <= d->filename.lastModified())
3793                 return ReadFileNotFound;
3794
3795         docstring const file = makeDisplayPath(d->filename.absFileName(), 20);
3796         docstring const text = bformat(_("An emergency save of the document "
3797                 "%1$s exists.\n\nRecover emergency save?"), file);
3798
3799         int const load_emerg = Alert::prompt(_("Load emergency save?"), text,
3800                 0, 2, _("&Recover"), _("&Load Original"), _("&Cancel"));
3801
3802         switch (load_emerg)
3803         {
3804         case 0: {
3805                 docstring str;
3806                 ReadStatus const ret_llf = loadThisLyXFile(emergencyFile);
3807                 bool const success = (ret_llf == ReadSuccess);
3808                 if (success) {
3809                         if (isReadonly()) {
3810                                 Alert::warning(_("File is read-only"),
3811                                         bformat(_("An emergency file is successfully loaded, "
3812                                         "but the original file %1$s is marked read-only. "
3813                                         "Please make sure to save the document as a different "
3814                                         "file."), from_utf8(d->filename.absFileName())));
3815                         }
3816                         markDirty();
3817                         str = _("Document was successfully recovered.");
3818                 } else
3819                         str = _("Document was NOT successfully recovered.");
3820                 str += "\n\n" + bformat(_("Remove emergency file now?\n(%1$s)"),
3821                         makeDisplayPath(emergencyFile.absFileName()));
3822
3823                 int const del_emerg =
3824                         Alert::prompt(_("Delete emergency file?"), str, 1, 1,
3825                                 _("&Remove"), _("&Keep"));
3826                 if (del_emerg == 0) {
3827                         emergencyFile.removeFile();
3828                         if (success)
3829                                 Alert::warning(_("Emergency file deleted"),
3830                                         _("Do not forget to save your file now!"), true);
3831                         }
3832                 return success ? ReadSuccess : ReadEmergencyFailure;
3833         }
3834         case 1: {
3835                 int const del_emerg =
3836                         Alert::prompt(_("Delete emergency file?"),
3837                                 _("Remove emergency file now?"), 1, 1,
3838                                 _("&Remove"), _("&Keep"));
3839                 if (del_emerg == 0)
3840                         emergencyFile.removeFile();
3841                 return ReadOriginal;
3842         }
3843
3844         default:
3845                 break;
3846         }
3847         return ReadCancel;
3848 }
3849
3850
3851 Buffer::ReadStatus Buffer::loadAutosave()
3852 {
3853         // Now check if autosave file is newer.
3854         FileName const autosaveFile = getAutosaveFileName();
3855         if (!autosaveFile.exists()
3856                   || autosaveFile.lastModified() <= d->filename.lastModified())
3857                 return ReadFileNotFound;
3858
3859         docstring const file = makeDisplayPath(d->filename.absFileName(), 20);
3860         docstring const text = bformat(_("The backup of the document %1$s "
3861                 "is newer.\n\nLoad the backup instead?"), file);
3862         int const ret = Alert::prompt(_("Load backup?"), text, 0, 2,
3863                 _("&Load backup"), _("Load &original"), _("&Cancel"));
3864
3865         switch (ret)
3866         {
3867         case 0: {
3868                 ReadStatus const ret_llf = loadThisLyXFile(autosaveFile);
3869                 // the file is not saved if we load the autosave file.
3870                 if (ret_llf == ReadSuccess) {
3871                         if (isReadonly()) {
3872                                 Alert::warning(_("File is read-only"),
3873                                         bformat(_("A backup file is successfully loaded, "
3874                                         "but the original file %1$s is marked read-only. "
3875                                         "Please make sure to save the document as a "
3876                                         "different file."),
3877                                         from_utf8(d->filename.absFileName())));
3878                         }
3879                         markDirty();
3880                         return ReadSuccess;
3881                 }
3882                 return ReadAutosaveFailure;
3883         }
3884         case 1:
3885                 // Here we delete the autosave
3886                 autosaveFile.removeFile();
3887                 return ReadOriginal;
3888         default:
3889                 break;
3890         }
3891         return ReadCancel;
3892 }
3893
3894
3895 Buffer::ReadStatus Buffer::loadLyXFile()
3896 {
3897         if (!d->filename.isReadableFile()) {
3898                 ReadStatus const ret_rvc = extractFromVC();
3899                 if (ret_rvc != ReadSuccess)
3900                         return ret_rvc;
3901         }
3902
3903         ReadStatus const ret_re = loadEmergency();
3904         if (ret_re == ReadSuccess || ret_re == ReadCancel)
3905                 return ret_re;
3906
3907         ReadStatus const ret_ra = loadAutosave();
3908         if (ret_ra == ReadSuccess || ret_ra == ReadCancel)
3909                 return ret_ra;
3910
3911         return loadThisLyXFile(d->filename);
3912 }
3913
3914
3915 Buffer::ReadStatus Buffer::loadThisLyXFile(FileName const & fn)
3916 {
3917         return readFile(fn);
3918 }
3919
3920
3921 void Buffer::bufferErrors(TeXErrors const & terr, ErrorList & errorList) const
3922 {
3923         TeXErrors::Errors::const_iterator it = terr.begin();
3924         TeXErrors::Errors::const_iterator end = terr.end();
3925         ListOfBuffers clist = getDescendents();
3926         ListOfBuffers::const_iterator cen = clist.end();
3927
3928         for (; it != end; ++it) {
3929                 int id_start = -1;
3930                 int pos_start = -1;
3931                 int errorRow = it->error_in_line;
3932                 Buffer const * buf = 0;
3933                 Impl const * p = d;
3934                 if (it->child_name.empty())
3935                     p->texrow.getIdFromRow(errorRow, id_start, pos_start);
3936                 else {
3937                         // The error occurred in a child
3938                         ListOfBuffers::const_iterator cit = clist.begin();
3939                         for (; cit != cen; ++cit) {
3940                                 string const child_name =
3941                                         DocFileName(changeExtension(
3942                                                 (*cit)->absFileName(), "tex")).
3943                                                         mangledFileName();
3944                                 if (it->child_name != child_name)
3945                                         continue;
3946                                 (*cit)->d->texrow.getIdFromRow(errorRow,
3947                                                         id_start, pos_start);
3948                                 if (id_start != -1) {
3949                                         buf = d->cloned_buffer_
3950                                                 ? (*cit)->d->cloned_buffer_->d->owner_
3951                                                 : (*cit)->d->owner_;
3952                                         p = (*cit)->d;
3953                                         break;
3954                                 }
3955                         }
3956                 }
3957                 int id_end = -1;
3958                 int pos_end = -1;
3959                 bool found;
3960                 do {
3961                         ++errorRow;
3962                         found = p->texrow.getIdFromRow(errorRow, id_end, pos_end);
3963                 } while (found && id_start == id_end && pos_start == pos_end);
3964
3965                 if (id_start != id_end) {
3966                         // Next registered position is outside the inset where
3967                         // the error occurred, so signal end-of-paragraph
3968                         pos_end = 0;
3969                 }
3970
3971                 errorList.push_back(ErrorItem(it->error_desc,
3972                         it->error_text, id_start, pos_start, pos_end, buf));
3973         }
3974 }
3975
3976
3977 void Buffer::setBuffersForInsets() const
3978 {
3979         inset().setBuffer(const_cast<Buffer &>(*this));
3980 }
3981
3982
3983 void Buffer::updateBuffer(UpdateScope scope, UpdateType utype) const
3984 {
3985         // Use the master text class also for child documents
3986         Buffer const * const master = masterBuffer();
3987         DocumentClass const & textclass = master->params().documentClass();
3988
3989         // do this only if we are the top-level Buffer
3990         if (master == this)
3991                 reloadBibInfoCache();
3992
3993         // keep the buffers to be children in this set. If the call from the
3994         // master comes back we can see which of them were actually seen (i.e.
3995         // via an InsetInclude). The remaining ones in the set need still be updated.
3996         static std::set<Buffer const *> bufToUpdate;
3997         if (scope == UpdateMaster) {
3998                 // If this is a child document start with the master
3999                 if (master != this) {
4000                         bufToUpdate.insert(this);
4001                         master->updateBuffer(UpdateMaster, utype);
4002                         // Do this here in case the master has no gui associated with it. Then,
4003                         // the TocModel is not updated and TocModel::toc_ is invalid (bug 5699).
4004                         if (!master->d->gui_)
4005                                 structureChanged();
4006
4007                         // was buf referenced from the master (i.e. not in bufToUpdate anymore)?
4008                         if (bufToUpdate.find(this) == bufToUpdate.end())
4009                                 return;
4010                 }
4011
4012                 // start over the counters in the master
4013                 textclass.counters().reset();
4014         }
4015
4016         // update will be done below for this buffer
4017         bufToUpdate.erase(this);
4018
4019         // update all caches
4020         clearReferenceCache();
4021         updateMacros();
4022
4023         Buffer & cbuf = const_cast<Buffer &>(*this);
4024
4025         LASSERT(!text().paragraphs().empty(), /**/);
4026
4027         // do the real work
4028         ParIterator parit = cbuf.par_iterator_begin();
4029         updateBuffer(parit, utype);
4030
4031         if (master != this)
4032                 // TocBackend update will be done later.
4033                 return;
4034
4035         d->bibinfo_cache_valid_ = true;
4036         d->cite_labels_valid_ = true;
4037         cbuf.tocBackend().update();
4038         if (scope == UpdateMaster)
4039                 cbuf.structureChanged();
4040 }
4041
4042
4043 static depth_type getDepth(DocIterator const & it)
4044 {
4045         depth_type depth = 0;
4046         for (size_t i = 0 ; i < it.depth() ; ++i)
4047                 if (!it[i].inset().inMathed())
4048                         depth += it[i].paragraph().getDepth() + 1;
4049         // remove 1 since the outer inset does not count
4050         return depth - 1;
4051 }
4052
4053 static depth_type getItemDepth(ParIterator const & it)
4054 {
4055         Paragraph const & par = *it;
4056         LabelType const labeltype = par.layout().labeltype;
4057
4058         if (labeltype != LABEL_ENUMERATE && labeltype != LABEL_ITEMIZE)
4059                 return 0;
4060
4061         // this will hold the lowest depth encountered up to now.
4062         depth_type min_depth = getDepth(it);
4063         ParIterator prev_it = it;
4064         while (true) {
4065                 if (prev_it.pit())
4066                         --prev_it.top().pit();
4067                 else {
4068                         // start of nested inset: go to outer par
4069                         prev_it.pop_back();
4070                         if (prev_it.empty()) {
4071                                 // start of document: nothing to do
4072                                 return 0;
4073                         }
4074                 }
4075
4076                 // We search for the first paragraph with same label
4077                 // that is not more deeply nested.
4078                 Paragraph & prev_par = *prev_it;
4079                 depth_type const prev_depth = getDepth(prev_it);
4080                 if (labeltype == prev_par.layout().labeltype) {
4081                         if (prev_depth < min_depth)
4082                                 return prev_par.itemdepth + 1;
4083                         if (prev_depth == min_depth)
4084                                 return prev_par.itemdepth;
4085                 }
4086                 min_depth = min(min_depth, prev_depth);
4087                 // small optimization: if we are at depth 0, we won't
4088                 // find anything else
4089                 if (prev_depth == 0)
4090                         return 0;
4091         }
4092 }
4093
4094
4095 static bool needEnumCounterReset(ParIterator const & it)
4096 {
4097         Paragraph const & par = *it;
4098         LASSERT(par.layout().labeltype == LABEL_ENUMERATE, /**/);
4099         depth_type const cur_depth = par.getDepth();
4100         ParIterator prev_it = it;
4101         while (prev_it.pit()) {
4102                 --prev_it.top().pit();
4103                 Paragraph const & prev_par = *prev_it;
4104                 if (prev_par.getDepth() <= cur_depth)
4105                         return  prev_par.layout().labeltype != LABEL_ENUMERATE;
4106         }
4107         // start of nested inset: reset
4108         return true;
4109 }
4110
4111
4112 // set the label of a paragraph. This includes the counters.
4113 void Buffer::Impl::setLabel(ParIterator & it, UpdateType utype) const
4114 {
4115         BufferParams const & bp = owner_->masterBuffer()->params();
4116         DocumentClass const & textclass = bp.documentClass();
4117         Paragraph & par = it.paragraph();
4118         Layout const & layout = par.layout();
4119         Counters & counters = textclass.counters();
4120
4121         if (par.params().startOfAppendix()) {
4122                 // FIXME: only the counter corresponding to toplevel
4123                 // sectioning should be reset
4124                 counters.reset();
4125                 counters.appendix(true);
4126         }
4127         par.params().appendix(counters.appendix());
4128
4129         // Compute the item depth of the paragraph
4130         par.itemdepth = getItemDepth(it);
4131
4132         if (layout.margintype == MARGIN_MANUAL
4133             || layout.latextype == LATEX_BIB_ENVIRONMENT) {
4134                 if (par.params().labelWidthString().empty())
4135                         par.params().labelWidthString(par.expandLabel(layout, bp));
4136         } else {
4137                 par.params().labelWidthString(docstring());
4138         }
4139
4140         switch(layout.labeltype) {
4141         case LABEL_COUNTER:
4142                 if (layout.toclevel <= bp.secnumdepth
4143                       && (layout.latextype != LATEX_ENVIRONMENT
4144                           || it.text()->isFirstInSequence(it.pit()))) {
4145                         if (counters.hasCounter(layout.counter))
4146                                 counters.step(layout.counter, utype);
4147                         par.params().labelString(par.expandLabel(layout, bp));
4148                 } else
4149                         par.params().labelString(docstring());
4150                 break;
4151
4152         case LABEL_ITEMIZE: {
4153                 // At some point of time we should do something more
4154                 // clever here, like:
4155                 //   par.params().labelString(
4156                 //    bp.user_defined_bullet(par.itemdepth).getText());
4157                 // for now, use a simple hardcoded label
4158                 docstring itemlabel;
4159                 switch (par.itemdepth) {
4160                 case 0:
4161                         itemlabel = char_type(0x2022);
4162                         break;
4163                 case 1:
4164                         itemlabel = char_type(0x2013);
4165                         break;
4166                 case 2:
4167                         itemlabel = char_type(0x2217);
4168                         break;
4169                 case 3:
4170                         itemlabel = char_type(0x2219); // or 0x00b7
4171                         break;
4172                 }
4173                 par.params().labelString(itemlabel);
4174                 break;
4175         }
4176
4177         case LABEL_ENUMERATE: {
4178                 docstring enumcounter = layout.counter.empty() ? from_ascii("enum") : layout.counter;
4179
4180                 switch (par.itemdepth) {
4181                 case 2:
4182                         enumcounter += 'i';
4183                 case 1:
4184                         enumcounter += 'i';
4185                 case 0:
4186                         enumcounter += 'i';
4187                         break;
4188                 case 3:
4189                         enumcounter += "iv";
4190                         break;
4191                 default:
4192                         // not a valid enumdepth...
4193                         break;
4194                 }
4195
4196                 // Maybe we have to reset the enumeration counter.
4197                 if (needEnumCounterReset(it))
4198                         counters.reset(enumcounter);
4199                 counters.step(enumcounter, utype);
4200
4201                 string const & lang = par.getParLanguage(bp)->code();
4202                 par.params().labelString(counters.theCounter(enumcounter, lang));
4203
4204                 break;
4205         }
4206
4207         case LABEL_SENSITIVE: {
4208                 string const & type = counters.current_float();
4209                 docstring full_label;
4210                 if (type.empty())
4211                         full_label = owner_->B_("Senseless!!! ");
4212                 else {
4213                         docstring name = owner_->B_(textclass.floats().getType(type).name());
4214                         if (counters.hasCounter(from_utf8(type))) {
4215                                 string const & lang = par.getParLanguage(bp)->code();
4216                                 counters.step(from_utf8(type), utype);
4217                                 full_label = bformat(from_ascii("%1$s %2$s:"),
4218                                                      name,
4219                                                      counters.theCounter(from_utf8(type), lang));
4220                         } else
4221                                 full_label = bformat(from_ascii("%1$s #:"), name);
4222                 }
4223                 par.params().labelString(full_label);
4224                 break;
4225         }
4226
4227         case LABEL_NO_LABEL:
4228                 par.params().labelString(docstring());
4229                 break;
4230
4231         case LABEL_MANUAL:
4232         case LABEL_TOP_ENVIRONMENT:
4233         case LABEL_CENTERED_TOP_ENVIRONMENT:
4234         case LABEL_STATIC:
4235         case LABEL_BIBLIO:
4236                 par.params().labelString(par.expandLabel(layout, bp));
4237                 break;
4238         }
4239 }
4240
4241
4242 void Buffer::updateBuffer(ParIterator & parit, UpdateType utype) const
4243 {
4244         LASSERT(parit.pit() == 0, /**/);
4245
4246         // Set the position of the text in the buffer to be able
4247         // to resolve macros in it.
4248         parit.text()->setMacrocontextPosition(parit);
4249
4250         depth_type maxdepth = 0;
4251         pit_type const lastpit = parit.lastpit();
4252         for ( ; parit.pit() <= lastpit ; ++parit.pit()) {
4253                 // reduce depth if necessary
4254                 parit->params().depth(min(parit->params().depth(), maxdepth));
4255                 maxdepth = parit->getMaxDepthAfter();
4256
4257                 if (utype == OutputUpdate) {
4258                         // track the active counters
4259                         // we have to do this for the master buffer, since the local
4260                         // buffer isn't tracking anything.
4261                         masterBuffer()->params().documentClass().counters().
4262                                         setActiveLayout(parit->layout());
4263                 }
4264
4265                 // set the counter for this paragraph
4266                 d->setLabel(parit, utype);
4267
4268                 // now the insets
4269                 InsetList::const_iterator iit = parit->insetList().begin();
4270                 InsetList::const_iterator end = parit->insetList().end();
4271                 for (; iit != end; ++iit) {
4272                         parit.pos() = iit->pos;
4273                         iit->inset->updateBuffer(parit, utype);
4274                 }
4275         }
4276 }
4277
4278
4279 int Buffer::spellCheck(DocIterator & from, DocIterator & to,
4280         WordLangTuple & word_lang, docstring_list & suggestions) const
4281 {
4282         int progress = 0;
4283         WordLangTuple wl;
4284         suggestions.clear();
4285         word_lang = WordLangTuple();
4286         // OK, we start from here.
4287         DocIterator const end = doc_iterator_end(this);
4288         for (; from != end; from.forwardPos()) {
4289                 // We are only interested in text so remove the math CursorSlice.
4290                 while (from.inMathed()) {
4291                         from.pop_back();
4292                         from.pos()++;
4293                 }
4294                 // If from is at the end of the document (which is possible
4295                 // when leaving the mathed) LyX will crash later.
4296                 if (from == end)
4297                         break;
4298                 to = from;
4299                 from.paragraph().spellCheck();
4300                 SpellChecker::Result res = from.paragraph().spellCheck(from.pos(), to.pos(), wl, suggestions);
4301                 if (SpellChecker::misspelled(res)) {
4302                         word_lang = wl;
4303                         break;
4304                 }
4305
4306                 // Do not increase progress when from == to, otherwise the word
4307                 // count will be wrong.
4308                 if (from != to) {
4309                         from = to;
4310                         ++progress;
4311                 }
4312         }
4313         return progress;
4314 }
4315
4316
4317 Buffer::ReadStatus Buffer::reload()
4318 {
4319         setBusy(true);
4320         // c.f. bug http://www.lyx.org/trac/ticket/6587
4321         removeAutosaveFile();
4322         // e.g., read-only status could have changed due to version control
4323         d->filename.refresh();
4324         docstring const disp_fn = makeDisplayPath(d->filename.absFileName());
4325
4326         ReadStatus const status = loadLyXFile();
4327         if (status == ReadSuccess) {
4328                 updateBuffer();
4329                 changed(true);
4330                 updateTitles();
4331                 markClean();
4332                 message(bformat(_("Document %1$s reloaded."), disp_fn));
4333                 d->undo_.clear();
4334         } else {
4335                 message(bformat(_("Could not reload document %1$s."), disp_fn));
4336         }
4337         setBusy(false);
4338         removePreviews();
4339         updatePreviews();
4340         errors("Parse");
4341         return status;
4342 }
4343
4344
4345 bool Buffer::saveAs(FileName const & fn)
4346 {
4347         FileName const old_name = fileName();
4348         FileName const old_auto = getAutosaveFileName();
4349         bool const old_unnamed = isUnnamed();
4350
4351         setFileName(fn);
4352         markDirty();
4353         setUnnamed(false);
4354
4355         if (save()) {
4356                 // bring the autosave file with us, just in case.
4357                 moveAutosaveFile(old_auto);
4358                 // validate version control data and
4359                 // correct buffer title
4360                 lyxvc().file_found_hook(fileName());
4361                 updateTitles();
4362                 // the file has now been saved to the new location.
4363                 // we need to check that the locations of child buffers
4364                 // are still valid.
4365                 checkChildBuffers();
4366                 return true;
4367         } else {
4368                 // save failed
4369                 // reset the old filename and unnamed state
4370                 setFileName(old_name);
4371                 setUnnamed(old_unnamed);
4372                 return false;
4373         }
4374 }
4375
4376
4377 // FIXME We could do better here, but it is complicated. What would be
4378 // nice is to offer either (a) to save the child buffer to an appropriate
4379 // location, so that it would "move with the master", or else (b) to update
4380 // the InsetInclude so that it pointed to the same file. But (a) is a bit
4381 // complicated, because the code for this lives in GuiView.
4382 void Buffer::checkChildBuffers()
4383 {
4384         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
4385         Impl::BufferPositionMap::iterator const en = d->children_positions.end();
4386         for (; it != en; ++it) {
4387                 DocIterator dit = it->second;
4388                 Buffer * cbuf = const_cast<Buffer *>(it->first);
4389                 if (!cbuf || !theBufferList().isLoaded(cbuf))
4390                         continue;
4391                 Inset * inset = dit.nextInset();
4392                 LASSERT(inset && inset->lyxCode() == INCLUDE_CODE, continue);
4393                 InsetInclude * inset_inc = static_cast<InsetInclude *>(inset);
4394                 docstring const & incfile = inset_inc->getParam("filename");
4395                 string oldloc = cbuf->absFileName();
4396                 string newloc = makeAbsPath(to_utf8(incfile),
4397                                 onlyPath(absFileName())).absFileName();
4398                 if (oldloc == newloc)
4399                         continue;
4400                 // the location of the child file is incorrect.
4401                 Alert::warning(_("Included File Invalid"),
4402                                 bformat(_("Saving this document to a new location has made the file:\n"
4403                                 "  %1$s\n"
4404                                 "inaccessible. You will need to update the included filename."),
4405                                 from_utf8(oldloc)));
4406                 cbuf->setParent(0);
4407                 inset_inc->setChildBuffer(0);
4408         }
4409         // invalidate cache of children
4410         d->children_positions.clear();
4411         d->position_to_children.clear();
4412 }
4413
4414 } // namespace lyx