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/InsetBibitem.h"
  70 #include "insets/InsetBibtex.h"
  71 #include "insets/InsetBranch.h"
  72 #include "insets/InsetInclude.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 = 401; // Ronen: support for \Diagram
 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 a 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
 261         mutable RefCache ref_cache_;
 262
 263         /// our Text that should be wrapped in an InsetText
 264         InsetText * inset;
 265
 266         /// This is here to force the test to be done whenever parent_buffer
 267         /// is accessed.
 268         Buffer const * parent() const {
 269                 // if parent_buffer is not loaded, then it has been unloaded,
 270                 // which means that parent_buffer is an invalid pointer. So we
 271                 // set it to null in that case.
 272                 // however, the BufferList doesn't know about cloned buffers, so
 273                 // they will always be regarded as unloaded. in that case, we hope
 274                 // for the best.
 275                 if (!cloned_buffer_ && !theBufferList().isLoaded(parent_buffer))
 276                         parent_buffer = 0;
 277                 return parent_buffer;
 278         }
 279
 280         ///
 281         void setParent(Buffer const * pb) {
 282                 if (parent_buffer == pb)
 283                         // nothing to do
 284                         return;
 285                 if (!cloned_buffer_ && parent_buffer && pb)
 286                         LYXERR0("Warning: a buffer should not have two parents!");
 287                 parent_buffer = pb;
 288                 if (!cloned_buffer_ && parent_buffer) {
 289                         parent_buffer->invalidateBibfileCache();
 290                         parent_buffer->invalidateBibinfoCache();
 291                 }
 292         }
 293
 294         /// If non zero, this buffer is a clone of existing buffer \p cloned_buffer_
 295         /// This one is useful for preview detached in a thread.
 296         Buffer const * cloned_buffer_;
 297         /// are we in the process of exporting this buffer?
 298         mutable bool doing_export;
 299
 300 private:
 301         /// So we can force access via the accessors.
 302         mutable Buffer const * parent_buffer;
 303
 304 };
 305
 306
 307 /// Creates the per buffer temporary directory
 308 static FileName createBufferTmpDir()
 309 {
 310         static int count;
 311         // We are in our own directory.  Why bother to mangle name?
 312         // In fact I wrote this code to circumvent a problematic behaviour
 313         // (bug?) of EMX mkstemp().
 314         FileName tmpfl(package().temp_dir().absFileName() + "/lyx_tmpbuf" +
 315                 convert<string>(count++));
 316
 317         if (!tmpfl.createDirectory(0777)) {
 318                 throw ExceptionMessage(WarningException, _("Disk Error: "), bformat(
 319                         _("LyX could not create the temporary directory '%1$s' (Disk is full maybe?)"),
 320                         from_utf8(tmpfl.absFileName())));
 321         }
 322         return tmpfl;
 323 }
 324
 325
 326 Buffer::Impl::Impl(Buffer * owner, FileName const & file, bool readonly_,
 327         Buffer const * cloned_buffer)
 328         : owner_(owner), lyx_clean(true), bak_clean(true), unnamed(false),
 329           read_only(readonly_), filename(file), file_fully_loaded(false),
 330           toc_backend(owner), macro_lock(false), timestamp_(0),
 331           checksum_(0), wa_(0), gui_(0), undo_(*owner), bibinfo_cache_valid_(false),
 332                 bibfile_cache_valid_(false), cloned_buffer_(cloned_buffer),
 333                 doing_export(false), parent_buffer(0)
 334 {
 335         if (!cloned_buffer_) {
 336                 temppath = createBufferTmpDir();
 337                 lyxvc.setBuffer(owner_);
 338                 if (use_gui)
 339                         wa_ = new frontend::WorkAreaManager;
 340                 return;
 341         }
 342         temppath = cloned_buffer_->d->temppath;
 343         file_fully_loaded = true;
 344         params = cloned_buffer_->d->params;
 345         bibfiles_cache_ = cloned_buffer_->d->bibfiles_cache_;
 346         bibinfo_ = cloned_buffer_->d->bibinfo_;
 347         bibinfo_cache_valid_ = cloned_buffer_->d->bibinfo_cache_valid_;
 348         bibfile_cache_valid_ = cloned_buffer_->d->bibfile_cache_valid_;
 349         bibfile_status_ = cloned_buffer_->d->bibfile_status_;
 350 }
 351
 352
 353 Buffer::Buffer(string const & file, bool readonly, Buffer const * cloned_buffer)
 354         : d(new Impl(this, FileName(file), readonly, cloned_buffer))
 355 {
 356         LYXERR(Debug::INFO, "Buffer::Buffer()");
 357         if (cloned_buffer) {
 358                 d->inset = new InsetText(*cloned_buffer->d->inset);
 359                 d->inset->setBuffer(*this);
 360                 // FIXME: optimize this loop somewhat, maybe by creating a new
 361                 // general recursive Inset::setId().
 362                 DocIterator it = doc_iterator_begin(this);
 363                 DocIterator cloned_it = doc_iterator_begin(cloned_buffer);
 364                 for (; !it.atEnd(); it.forwardPar(), cloned_it.forwardPar())
 365                         it.paragraph().setId(cloned_it.paragraph().id());
 366         } else
 367                 d->inset = new InsetText(this);
 368         d->inset->setAutoBreakRows(true);
 369         d->inset->getText(0)->setMacrocontextPosition(par_iterator_begin());
 370 }
 371
 372
 373 Buffer::~Buffer()
 374 {
 375         LYXERR(Debug::INFO, "Buffer::~Buffer()");
 376         // here the buffer should take care that it is
 377         // saved properly, before it goes into the void.
 378
 379         // GuiView already destroyed
 380         d->gui_ = 0;
 381
 382         if (isInternal()) {
 383                 // No need to do additional cleanups for internal buffer.
 384                 delete d;
 385                 return;
 386         }
 387
 388         // loop over children
 389         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
 390         Impl::BufferPositionMap::iterator end = d->children_positions.end();
 391         for (; it != end; ++it) {
 392                 Buffer * child = const_cast<Buffer *>(it->first);
 393                 if (d->cloned_buffer_)
 394                         delete child;
 395                 // The child buffer might have been closed already.
 396                 else if (theBufferList().isLoaded(child))
 397                         theBufferList().releaseChild(this, child);
 398         }
 399
 400         if (!isClean()) {
 401                 docstring msg = _("LyX attempted to close a document that had unsaved changes!\n");
 402                 msg += emergencyWrite();
 403                 Alert::warning(_("Attempting to close changed document!"), msg);
 404         }
 405
 406         // clear references to children in macro tables
 407         d->children_positions.clear();
 408         d->position_to_children.clear();
 409
 410         if (!d->cloned_buffer_ && !d->temppath.destroyDirectory()) {
 411                 Alert::warning(_("Could not remove temporary directory"),
 412                         bformat(_("Could not remove the temporary directory %1$s"),
 413                         from_utf8(d->temppath.absFileName())));
 414         }
 415
 416         // Remove any previewed LaTeX snippets associated with this buffer.
 417         if (!isClone())
 418                 thePreviews().removeLoader(*this);
 419
 420         delete d;
 421 }
 422
 423
 424 Buffer * Buffer::clone() const
 425 {
 426         Buffer * buffer_clone = new Buffer(fileName().absFileName(), false, this);
 427         buffer_clone->d->macro_lock = true;
 428         buffer_clone->d->children_positions.clear();
 429         // FIXME (Abdel 09/01/2010): this is too complicated. The whole children_positions and
 430         // math macro caches need to be rethought and simplified.
 431         // I am not sure wether we should handle Buffer cloning here or in BufferList.
 432         // Right now BufferList knows nothing about buffer clones.
 433         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
 434         Impl::BufferPositionMap::iterator end = d->children_positions.end();
 435         for (; it != end; ++it) {
 436                 DocIterator dit = it->second.clone(buffer_clone);
 437                 dit.setBuffer(buffer_clone);
 438                 Buffer * child = const_cast<Buffer *>(it->first);
 439                 Buffer * child_clone = child->clone();
 440                 Inset * inset = dit.nextInset();
 441                 LASSERT(inset && inset->lyxCode() == INCLUDE_CODE, continue);
 442                 InsetInclude * inset_inc = static_cast<InsetInclude *>(inset);
 443                 inset_inc->setChildBuffer(child_clone);
 444                 child_clone->d->setParent(buffer_clone);
 445                 buffer_clone->setChild(dit, child_clone);
 446         }
 447         buffer_clone->d->macro_lock = false;
 448         return buffer_clone;
 449 }
 450
 451
 452 bool Buffer::isClone() const
 453 {
 454         return d->cloned_buffer_;
 455 }
 456
 457
 458 void Buffer::changed(bool update_metrics) const
 459 {
 460         if (d->wa_)
 461                 d->wa_->redrawAll(update_metrics);
 462 }
 463
 464
 465 frontend::WorkAreaManager & Buffer::workAreaManager() const
 466 {
 467         LASSERT(d->wa_, /**/);
 468         return *d->wa_;
 469 }
 470
 471
 472 Text & Buffer::text() const
 473 {
 474         return d->inset->text();
 475 }
 476
 477
 478 Inset & Buffer::inset() const
 479 {
 480         return *d->inset;
 481 }
 482
 483
 484 BufferParams & Buffer::params()
 485 {
 486         return d->params;
 487 }
 488
 489
 490 BufferParams const & Buffer::params() const
 491 {
 492         return d->params;
 493 }
 494
 495
 496 ParagraphList & Buffer::paragraphs()
 497 {
 498         return text().paragraphs();
 499 }
 500
 501
 502 ParagraphList const & Buffer::paragraphs() const
 503 {
 504         return text().paragraphs();
 505 }
 506
 507
 508 LyXVC & Buffer::lyxvc()
 509 {
 510         return d->lyxvc;
 511 }
 512
 513
 514 LyXVC const & Buffer::lyxvc() const
 515 {
 516         return d->lyxvc;
 517 }
 518
 519
 520 string const Buffer::temppath() const
 521 {
 522         return d->temppath.absFileName();
 523 }
 524
 525
 526 TexRow & Buffer::texrow()
 527 {
 528         return d->texrow;
 529 }
 530
 531
 532 TexRow const & Buffer::texrow() const
 533 {
 534         return d->texrow;
 535 }
 536
 537
 538 TocBackend & Buffer::tocBackend() const
 539 {
 540         return d->toc_backend;
 541 }
 542
 543
 544 Undo & Buffer::undo()
 545 {
 546         return d->undo_;
 547 }
 548
 549
 550 void Buffer::setChild(DocIterator const & dit, Buffer * child)
 551 {
 552         d->children_positions[child] = dit;
 553 }
 554
 555
 556 string Buffer::latexName(bool const no_path) const
 557 {
 558         FileName latex_name =
 559                 makeLatexName(d->exportFileName());
 560         return no_path ? latex_name.onlyFileName()
 561                 : latex_name.absFileName();
 562 }
 563
 564
 565 FileName Buffer::Impl::exportFileName() const
 566 {
 567         docstring const branch_suffix =
 568                 params.branchlist().getFileNameSuffix();
 569         if (branch_suffix.empty())
 570                 return filename;
 571
 572         string const name = filename.onlyFileNameWithoutExt()
 573                 + to_utf8(branch_suffix);
 574         FileName res(filename.onlyPath().absFileName() + "/" + name);
 575         res.changeExtension(filename.extension());
 576
 577         return res;
 578 }
 579
 580
 581 string Buffer::logName(LogType * type) const
 582 {
 583         string const filename = latexName(false);
 584
 585         if (filename.empty()) {
 586                 if (type)
 587                         *type = latexlog;
 588                 return string();
 589         }
 590
 591         string const path = temppath();
 592
 593         FileName const fname(addName(temppath(),
 594                                      onlyFileName(changeExtension(filename,
 595                                                                   ".log"))));
 596
 597         // FIXME: how do we know this is the name of the build log?
 598         FileName const bname(
 599                 addName(path, onlyFileName(
 600                         changeExtension(filename,
 601                                         formats.extension(bufferFormat()) + ".out"))));
 602
 603         // Also consider the master buffer log file
 604         FileName masterfname = fname;
 605         LogType mtype;
 606         if (masterBuffer() != this) {
 607                 string const mlogfile = masterBuffer()->logName(&mtype);
 608                 masterfname = FileName(mlogfile);
 609         }
 610
 611         // If no Latex log or Build log is newer, show Build log
 612         if (bname.exists() &&
 613             ((!fname.exists() && !masterfname.exists())
 614              || (fname.lastModified() < bname.lastModified()
 615                  && masterfname.lastModified() < bname.lastModified()))) {
 616                 LYXERR(Debug::FILES, "Log name calculated as: " << bname);
 617                 if (type)
 618                         *type = buildlog;
 619                 return bname.absFileName();
 620         // If we have a newer master file log or only a master log, show this
 621         } else if (fname != masterfname
 622                    && (!fname.exists() && (masterfname.exists()
 623                    || fname.lastModified() < masterfname.lastModified()))) {
 624                 LYXERR(Debug::FILES, "Log name calculated as: " << masterfname);
 625                 if (type)
 626                         *type = mtype;
 627                 return masterfname.absFileName();
 628         }
 629         LYXERR(Debug::FILES, "Log name calculated as: " << fname);
 630         if (type)
 631                         *type = latexlog;
 632         return fname.absFileName();
 633 }
 634
 635
 636 void Buffer::setReadonly(bool const flag)
 637 {
 638         if (d->read_only != flag) {
 639                 d->read_only = flag;
 640                 changed(false);
 641         }
 642 }
 643
 644
 645 void Buffer::setFileName(string const & newfile)
 646 {
 647         d->filename = makeAbsPath(newfile);
 648         setReadonly(d->filename.isReadOnly());
 649         updateTitles();
 650 }
 651
 652
 653 int Buffer::readHeader(Lexer & lex)
 654 {
 655         int unknown_tokens = 0;
 656         int line = -1;
 657         int begin_header_line = -1;
 658
 659         // Initialize parameters that may be/go lacking in header:
 660         params().branchlist().clear();
 661         params().preamble.erase();
 662         params().options.erase();
 663         params().master.erase();
 664         params().float_placement.erase();
 665         params().paperwidth.erase();
 666         params().paperheight.erase();
 667         params().leftmargin.erase();
 668         params().rightmargin.erase();
 669         params().topmargin.erase();
 670         params().bottommargin.erase();
 671         params().headheight.erase();
 672         params().headsep.erase();
 673         params().footskip.erase();
 674         params().columnsep.erase();
 675         params().fontsCJK.erase();
 676         params().listings_params.clear();
 677         params().clearLayoutModules();
 678         params().clearRemovedModules();
 679         params().clearIncludedChildren();
 680         params().pdfoptions().clear();
 681         params().indiceslist().clear();
 682         params().backgroundcolor = lyx::rgbFromHexName("#ffffff");
 683         params().isbackgroundcolor = false;
 684         params().fontcolor = lyx::rgbFromHexName("#000000");
 685         params().isfontcolor = false;
 686         params().notefontcolor = lyx::rgbFromHexName("#cccccc");
 687         params().boxbgcolor = lyx::rgbFromHexName("#ff0000");
 688         params().html_latex_start.clear();
 689         params().html_latex_end.clear();
 690         params().html_math_img_scale = 1.0;
 691         params().output_sync_macro.erase();
 692
 693         for (int i = 0; i < 4; ++i) {
 694                 params().user_defined_bullet(i) = ITEMIZE_DEFAULTS[i];
 695                 params().temp_bullet(i) = ITEMIZE_DEFAULTS[i];
 696         }
 697
 698         ErrorList & errorList = d->errorLists["Parse"];
 699
 700         while (lex.isOK()) {
 701                 string token;
 702                 lex >> token;
 703
 704                 if (token.empty())
 705                         continue;
 706
 707                 if (token == "\\end_header")
 708                         break;
 709
 710                 ++line;
 711                 if (token == "\\begin_header") {
 712                         begin_header_line = line;
 713                         continue;
 714                 }
 715
 716                 LYXERR(Debug::PARSER, "Handling document header token: `"
 717                                       << token << '\'');
 718
 719                 string unknown = params().readToken(lex, token, d->filename.onlyPath());
 720                 if (!unknown.empty()) {
 721                         if (unknown[0] != '\\' && token == "\\textclass") {
 722                                 Alert::warning(_("Unknown document class"),
 723                        bformat(_("Using the default document class, because the "
 724                                               "class %1$s is unknown."), from_utf8(unknown)));
 725                         } else {
 726                                 ++unknown_tokens;
 727                                 docstring const s = bformat(_("Unknown token: "
 728                                                                         "%1$s %2$s\n"),
 729                                                          from_utf8(token),
 730                                                          lex.getDocString());
 731                                 errorList.push_back(ErrorItem(_("Document header error"),
 732                                         s, -1, 0, 0));
 733                         }
 734                 }
 735         }
 736         if (begin_header_line) {
 737                 docstring const s = _("\\begin_header is missing");
 738                 errorList.push_back(ErrorItem(_("Document header error"),
 739                         s, -1, 0, 0));
 740         }
 741
 742         params().makeDocumentClass();
 743
 744         return unknown_tokens;
 745 }
 746
 747
 748 // Uwe C. Schroeder
 749 // changed to be public and have one parameter
 750 // Returns true if "\end_document" is not read (Asger)
 751 bool Buffer::readDocument(Lexer & lex)
 752 {
 753         ErrorList & errorList = d->errorLists["Parse"];
 754         errorList.clear();
 755
 756         if (!lex.checkFor("\\begin_document")) {
 757                 docstring const s = _("\\begin_document is missing");
 758                 errorList.push_back(ErrorItem(_("Document header error"),
 759                         s, -1, 0, 0));
 760         }
 761
 762         // we are reading in a brand new document
 763         LASSERT(paragraphs().empty(), /**/);
 764
 765         readHeader(lex);
 766
 767         if (params().outputChanges) {
 768                 bool dvipost    = LaTeXFeatures::isAvailable("dvipost");
 769                 bool xcolorulem = LaTeXFeatures::isAvailable("ulem") &&
 770                                   LaTeXFeatures::isAvailable("xcolor");
 771
 772                 if (!dvipost && !xcolorulem) {
 773                         Alert::warning(_("Changes not shown in LaTeX output"),
 774                                        _("Changes will not be highlighted in LaTeX output, "
 775                                          "because neither dvipost nor xcolor/ulem are installed.\n"
 776                                          "Please install these packages or redefine "
 777                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 778                 } else if (!xcolorulem) {
 779                         Alert::warning(_("Changes not shown in LaTeX output"),
 780                                        _("Changes will not be highlighted in LaTeX output "
 781                                          "when using pdflatex, because xcolor and ulem are not installed.\n"
 782                                          "Please install both packages or redefine "
 783                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 784                 }
 785         }
 786
 787         if (!params().master.empty()) {
 788                 FileName const master_file = makeAbsPath(params().master,
 789                            onlyPath(absFileName()));
 790                 if (isLyXFileName(master_file.absFileName())) {
 791                         Buffer * master =
 792                                 checkAndLoadLyXFile(master_file, true);
 793                         if (master) {
 794                                 // necessary e.g. after a reload
 795                                 // to re-register the child (bug 5873)
 796                                 // FIXME: clean up updateMacros (here, only
 797                                 // child registering is needed).
 798                                 master->updateMacros();
 799                                 // set master as master buffer, but only
 800                                 // if we are a real child
 801                                 if (master->isChild(this))
 802                                         setParent(master);
 803                                 // if the master is not fully loaded
 804                                 // it is probably just loading this
 805                                 // child. No warning needed then.
 806                                 else if (master->isFullyLoaded())
 807                                         LYXERR0("The master '"
 808                                                 << params().master
 809                                                 << "' assigned to this document ("
 810                                                 << absFileName()
 811                                                 << ") does not include "
 812                                                 "this document. Ignoring the master assignment.");
 813                         }
 814                 }
 815         }
 816
 817         // assure we have a default index
 818         params().indiceslist().addDefault(B_("Index"));
 819
 820         // read main text
 821         bool const res = text().read(lex, errorList, d->inset);
 822
 823         usermacros.clear();
 824         updateMacros();
 825         updateMacroInstances();
 826         return res;
 827 }
 828
 829
 830 bool Buffer::readString(string const & s)
 831 {
 832         params().compressed = false;
 833
 834         // remove dummy empty par
 835         paragraphs().clear();
 836         Lexer lex;
 837         istringstream is(s);
 838         lex.setStream(is);
 839         FileName const name = FileName::tempName("Buffer_readString");
 840         switch (readFile(lex, name, true)) {
 841         case failure:
 842                 return false;
 843         case wrongversion: {
 844                 // We need to call lyx2lyx, so write the input to a file
 845                 ofstream os(name.toFilesystemEncoding().c_str());
 846                 os << s;
 847                 os.close();
 848                 return readFile(name);
 849         }
 850         case success:
 851                 break;
 852         }
 853
 854         return true;
 855 }
 856
 857
 858 bool Buffer::readFile(FileName const & filename)
 859 {
 860         FileName fname(filename);
 861
 862         params().compressed = fname.isZippedFile();
 863
 864         // remove dummy empty par
 865         paragraphs().clear();
 866         Lexer lex;
 867         lex.setFile(fname);
 868         if (readFile(lex, fname) != success)
 869                 return false;
 870
 871         return true;
 872 }
 873
 874
 875 bool Buffer::isFullyLoaded() const
 876 {
 877         return d->file_fully_loaded;
 878 }
 879
 880
 881 void Buffer::setFullyLoaded(bool value)
 882 {
 883         d->file_fully_loaded = value;
 884 }
 885
 886
 887 Buffer::ReadStatus Buffer::readFile(Lexer & lex, FileName const & filename,
 888                 bool fromstring)
 889 {
 890         LASSERT(!filename.empty(), /**/);
 891
 892         // the first (non-comment) token _must_ be...
 893         if (!lex.checkFor("\\lyxformat")) {
 894                 Alert::error(_("Document format failure"),
 895                              bformat(_("%1$s is not a readable LyX document."),
 896                                        from_utf8(filename.absFileName())));
 897                 return failure;
 898         }
 899
 900         string tmp_format;
 901         lex >> tmp_format;
 902         //lyxerr << "LyX Format: `" << tmp_format << '\'' << endl;
 903         // if present remove ".," from string.
 904         size_t dot = tmp_format.find_first_of(".,");
 905         //lyxerr << "           dot found at " << dot << endl;
 906         if (dot != string::npos)
 907                         tmp_format.erase(dot, 1);
 908         int const file_format = convert<int>(tmp_format);
 909         //lyxerr << "format: " << file_format << endl;
 910
 911         // save timestamp and checksum of the original disk file, making sure
 912         // to not overwrite them with those of the file created in the tempdir
 913         // when it has to be converted to the current format.
 914         if (!d->checksum_) {
 915                 // Save the timestamp and checksum of disk file. If filename is an
 916                 // emergency file, save the timestamp and checksum of the original lyx file
 917                 // because isExternallyModified will check for this file. (BUG4193)
 918                 string diskfile = filename.absFileName();
 919                 if (suffixIs(diskfile, ".emergency"))
 920                         diskfile = diskfile.substr(0, diskfile.size() - 10);
 921                 saveCheckSum(FileName(diskfile));
 922         }
 923
 924         if (file_format != LYX_FORMAT) {
 925
 926                 if (fromstring)
 927                         // lyx2lyx would fail
 928                         return wrongversion;
 929
 930                 FileName const tmpfile = FileName::tempName("Buffer_readFile");
 931                 if (tmpfile.empty()) {
 932                         Alert::error(_("Conversion failed"),
 933                                      bformat(_("%1$s is from a different"
 934                                               " version of LyX, but a temporary"
 935                                               " file for converting it could"
 936                                               " not be created."),
 937                                               from_utf8(filename.absFileName())));
 938                         return failure;
 939                 }
 940                 FileName const lyx2lyx = libFileSearch("lyx2lyx", "lyx2lyx");
 941                 if (lyx2lyx.empty()) {
 942                         Alert::error(_("Conversion script not found"),
 943                                      bformat(_("%1$s is from a different"
 944                                                " version of LyX, but the"
 945                                                " conversion script lyx2lyx"
 946                                                " could not be found."),
 947                                                from_utf8(filename.absFileName())));
 948                         return failure;
 949                 }
 950                 ostringstream command;
 951                 command << os::python()
 952                         << ' ' << quoteName(lyx2lyx.toFilesystemEncoding())
 953                         << " -t " << convert<string>(LYX_FORMAT)
 954                         << " -o " << quoteName(tmpfile.toFilesystemEncoding())
 955                         << ' ' << quoteName(filename.toSafeFilesystemEncoding());
 956                 string const command_str = command.str();
 957
 958                 LYXERR(Debug::INFO, "Running '" << command_str << '\'');
 959
 960                 cmd_ret const ret = runCommand(command_str);
 961                 if (ret.first != 0) {
 962                         if (file_format < LYX_FORMAT)
 963                                 Alert::error(_("Conversion script failed"),
 964                                      bformat(_("%1$s is from an older version"
 965                                               " of LyX, but the lyx2lyx script"
 966                                               " failed to convert it."),
 967                                               from_utf8(filename.absFileName())));
 968                         else
 969                                 Alert::error(_("Conversion script failed"),
 970                                      bformat(_("%1$s is from a newer version"
 971                                               " of LyX and cannot be converted by the"
 972                                                                 " lyx2lyx script."),
 973                                               from_utf8(filename.absFileName())));
 974                         return failure;
 975                 } else {
 976                         bool const ret = readFile(tmpfile);
 977                         // Do stuff with tmpfile name and buffer name here.
 978                         return ret ? success : failure;
 979                 }
 980
 981         }
 982
 983         if (readDocument(lex)) {
 984                 Alert::error(_("Document format failure"),
 985                              bformat(_("%1$s ended unexpectedly, which means"
 986                                                     " that it is probably corrupted."),
 987                                        from_utf8(filename.absFileName())));
 988                 return failure;
 989         }
 990
 991         d->file_fully_loaded = true;
 992         return success;
 993 }
 994
 995
 996 // Should probably be moved to somewhere else: BufferView? GuiView?
 997 bool Buffer::save() const
 998 {
 999         // ask if the disk file has been externally modified (use checksum method)
1000         if (fileName().exists() && isExternallyModified(checksum_method)) {
1001                 docstring const file = makeDisplayPath(absFileName(), 20);
1002                 docstring text = bformat(_("Document %1$s has been externally modified. Are you sure "
1003                                                              "you want to overwrite this file?"), file);
1004                 int const ret = Alert::prompt(_("Overwrite modified file?"),
1005                         text, 1, 1, _("&Overwrite"), _("&Cancel"));
1006                 if (ret == 1)
1007                         return false;
1008         }
1009
1010         // We don't need autosaves in the immediate future. (Asger)
1011         resetAutosaveTimers();
1012
1013         FileName backupName;
1014         bool madeBackup = false;
1015
1016         // make a backup if the file already exists
1017         if (lyxrc.make_backup && fileName().exists()) {
1018                 backupName = FileName(absFileName() + '~');
1019                 if (!lyxrc.backupdir_path.empty()) {
1020                         string const mangledName =
1021                                 subst(subst(backupName.absFileName(), '/', '!'), ':', '!');
1022                         backupName = FileName(addName(lyxrc.backupdir_path,
1023                                                       mangledName));
1024                 }
1025                 // do not copy because of #6587
1026                 if (fileName().moveTo(backupName)) {
1027                         madeBackup = true;
1028                 } else {
1029                         Alert::error(_("Backup failure"),
1030                                      bformat(_("Cannot create backup file %1$s.\n"
1031                                                "Please check whether the directory exists and is writeable."),
1032                                              from_utf8(backupName.absFileName())));
1033                         //LYXERR(Debug::DEBUG, "Fs error: " << fe.what());
1034                 }
1035         }
1036
1037         if (writeFile(d->filename)) {
1038                 markClean();
1039                 return true;
1040         } else {
1041                 // Saving failed, so backup is not backup
1042                 if (madeBackup)
1043                         backupName.moveTo(d->filename);
1044                 return false;
1045         }
1046 }
1047
1048
1049 bool Buffer::writeFile(FileName const & fname) const
1050 {
1051         if (d->read_only && fname == d->filename)
1052                 return false;
1053
1054         bool retval = false;
1055
1056         docstring const str = bformat(_("Saving document %1$s..."),
1057                 makeDisplayPath(fname.absFileName()));
1058         message(str);
1059
1060         string const encoded_fname = fname.toSafeFilesystemEncoding(os::CREATE);
1061
1062         if (params().compressed) {
1063                 gz::ogzstream ofs(encoded_fname.c_str(), ios::out|ios::trunc);
1064                 retval = ofs && write(ofs);
1065         } else {
1066                 ofstream ofs(encoded_fname.c_str(), ios::out|ios::trunc);
1067                 retval = ofs && write(ofs);
1068         }
1069
1070         if (!retval) {
1071                 message(str + _(" could not write file!"));
1072                 return false;
1073         }
1074
1075         // see bug 6587
1076         // removeAutosaveFile();
1077
1078         saveCheckSum(d->filename);
1079         message(str + _(" done."));
1080
1081         return true;
1082 }
1083
1084
1085 docstring Buffer::emergencyWrite()
1086 {
1087         // No need to save if the buffer has not changed.
1088         if (isClean())
1089                 return docstring();
1090
1091         string const doc = isUnnamed() ? onlyFileName(absFileName()) : absFileName();
1092
1093         docstring user_message = bformat(
1094                 _("LyX: Attempting to save document %1$s\n"), from_utf8(doc));
1095
1096         // We try to save three places:
1097         // 1) Same place as document. Unless it is an unnamed doc.
1098         if (!isUnnamed()) {
1099                 string s = absFileName();
1100                 s += ".emergency";
1101                 LYXERR0("  " << s);
1102                 if (writeFile(FileName(s))) {
1103                         markClean();
1104                         user_message += bformat(_("  Saved to %1$s. Phew.\n"), from_utf8(s));
1105                         return user_message;
1106                 } else {
1107                         user_message += _("  Save failed! Trying again...\n");
1108                 }
1109         }
1110
1111         // 2) In HOME directory.
1112         string s = addName(package().home_dir().absFileName(), absFileName());
1113         s += ".emergency";
1114         lyxerr << ' ' << s << endl;
1115         if (writeFile(FileName(s))) {
1116                 markClean();
1117                 user_message += bformat(_("  Saved to %1$s. Phew.\n"), from_utf8(s));
1118                 return user_message;
1119         }
1120
1121         user_message += _("  Save failed! Trying yet again...\n");
1122
1123         // 3) In "/tmp" directory.
1124         // MakeAbsPath to prepend the current
1125         // drive letter on OS/2
1126         s = addName(package().temp_dir().absFileName(), absFileName());
1127         s += ".emergency";
1128         lyxerr << ' ' << s << endl;
1129         if (writeFile(FileName(s))) {
1130                 markClean();
1131                 user_message += bformat(_("  Saved to %1$s. Phew.\n"), from_utf8(s));
1132                 return user_message;
1133         }
1134
1135         user_message += _("  Save failed! Bummer. Document is lost.");
1136         // Don't try again.
1137         markClean();
1138         return user_message;
1139 }
1140
1141
1142 bool Buffer::write(ostream & ofs) const
1143 {
1144 #ifdef HAVE_LOCALE
1145         // Use the standard "C" locale for file output.
1146         ofs.imbue(locale::classic());
1147 #endif
1148
1149         // The top of the file should not be written by params().
1150
1151         // write out a comment in the top of the file
1152         ofs << "#LyX " << lyx_version
1153             << " created this file. For more info see http://www.lyx.org/\n"
1154             << "\\lyxformat " << LYX_FORMAT << "\n"
1155             << "\\begin_document\n";
1156
1157         /// For each author, set 'used' to true if there is a change
1158         /// by this author in the document; otherwise set it to 'false'.
1159         AuthorList::Authors::const_iterator a_it = params().authors().begin();
1160         AuthorList::Authors::const_iterator a_end = params().authors().end();
1161         for (; a_it != a_end; ++a_it)
1162                 a_it->setUsed(false);
1163
1164         ParIterator const end = const_cast<Buffer *>(this)->par_iterator_end();
1165         ParIterator it = const_cast<Buffer *>(this)->par_iterator_begin();
1166         for ( ; it != end; ++it)
1167                 it->checkAuthors(params().authors());
1168
1169         // now write out the buffer parameters.
1170         ofs << "\\begin_header\n";
1171         params().writeFile(ofs);
1172         ofs << "\\end_header\n";
1173
1174         // write the text
1175         ofs << "\n\\begin_body\n";
1176         text().write(ofs);
1177         ofs << "\n\\end_body\n";
1178
1179         // Write marker that shows file is complete
1180         ofs << "\\end_document" << endl;
1181
1182         // Shouldn't really be needed....
1183         //ofs.close();
1184
1185         // how to check if close went ok?
1186         // Following is an attempt... (BE 20001011)
1187
1188         // good() returns false if any error occured, including some
1189         //        formatting error.
1190         // bad()  returns true if something bad happened in the buffer,
1191         //        which should include file system full errors.
1192
1193         bool status = true;
1194         if (!ofs) {
1195                 status = false;
1196                 lyxerr << "File was not closed properly." << endl;
1197         }
1198
1199         return status;
1200 }
1201
1202
1203 bool Buffer::makeLaTeXFile(FileName const & fname,
1204                            string const & original_path,
1205                            OutputParams const & runparams_in,
1206                            bool output_preamble, bool output_body) const
1207 {
1208         OutputParams runparams = runparams_in;
1209         if (params().useXetex)
1210                 runparams.flavor = OutputParams::XETEX;
1211
1212         string const encoding = runparams.encoding->iconvName();
1213         LYXERR(Debug::LATEX, "makeLaTeXFile encoding: " << encoding << "...");
1214
1215         ofdocstream ofs;
1216         try { ofs.reset(encoding); }
1217         catch (iconv_codecvt_facet_exception & e) {
1218                 lyxerr << "Caught iconv exception: " << e.what() << endl;
1219                 Alert::error(_("Iconv software exception Detected"), bformat(_("Please "
1220                         "verify that the support software for your encoding (%1$s) is "
1221                         "properly installed"), from_ascii(encoding)));
1222                 return false;
1223         }
1224         if (!openFileWrite(ofs, fname))
1225                 return false;
1226
1227         //TexStream ts(ofs.rdbuf(), &texrow());
1228         ErrorList & errorList = d->errorLists["Export"];
1229         errorList.clear();
1230         bool failed_export = false;
1231         try {
1232                 d->texrow.reset();
1233                 writeLaTeXSource(ofs, original_path,
1234                       runparams, output_preamble, output_body);
1235         }
1236         catch (EncodingException & e) {
1237                 odocstringstream ods;
1238                 ods.put(e.failed_char);
1239                 ostringstream oss;
1240                 oss << "0x" << hex << e.failed_char << dec;
1241                 docstring msg = bformat(_("Could not find LaTeX command for character '%1$s'"
1242                                           " (code point %2$s)"),
1243                                           ods.str(), from_utf8(oss.str()));
1244                 errorList.push_back(ErrorItem(msg, _("Some characters of your document are probably not "
1245                                 "representable in the chosen encoding.\n"
1246                                 "Changing the document encoding to utf8 could help."),
1247                                 e.par_id, e.pos, e.pos + 1));
1248                 failed_export = true;
1249         }
1250         catch (iconv_codecvt_facet_exception & e) {
1251                 errorList.push_back(ErrorItem(_("iconv conversion failed"),
1252                         _(e.what()), -1, 0, 0));
1253                 failed_export = true;
1254         }
1255         catch (exception const & e) {
1256                 errorList.push_back(ErrorItem(_("conversion failed"),
1257                         _(e.what()), -1, 0, 0));
1258                 failed_export = true;
1259         }
1260         catch (...) {
1261                 lyxerr << "Caught some really weird exception..." << endl;
1262                 lyx_exit(1);
1263         }
1264
1265         ofs.close();
1266         if (ofs.fail()) {
1267                 failed_export = true;
1268                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1269         }
1270
1271         errors("Export");
1272         return !failed_export;
1273 }
1274
1275
1276 void Buffer::writeLaTeXSource(odocstream & os,
1277                            string const & original_path,
1278                            OutputParams const & runparams_in,
1279                            bool const output_preamble, bool const output_body) const
1280 {
1281         // The child documents, if any, shall be already loaded at this point.
1282
1283         OutputParams runparams = runparams_in;
1284
1285         // Classify the unicode characters appearing in math insets
1286         Encodings::initUnicodeMath(*this);
1287
1288         // validate the buffer.
1289         LYXERR(Debug::LATEX, "  Validating buffer...");
1290         LaTeXFeatures features(*this, params(), runparams);
1291         validate(features);
1292         LYXERR(Debug::LATEX, "  Buffer validation done.");
1293
1294         // The starting paragraph of the coming rows is the
1295         // first paragraph of the document. (Asger)
1296         if (output_preamble && runparams.nice) {
1297                 os << "%% LyX " << lyx_version << " created this file.  "
1298                         "For more info, see http://www.lyx.org/.\n"
1299                         "%% Do not edit unless you really know what "
1300                         "you are doing.\n";
1301                 d->texrow.newline();
1302                 d->texrow.newline();
1303         }
1304         LYXERR(Debug::INFO, "lyx document header finished");
1305
1306         // Don't move this behind the parent_buffer=0 code below,
1307         // because then the macros will not get the right "redefinition"
1308         // flag as they don't see the parent macros which are output before.
1309         updateMacros();
1310
1311         // fold macros if possible, still with parent buffer as the
1312         // macros will be put in the prefix anyway.
1313         updateMacroInstances();
1314
1315         // There are a few differences between nice LaTeX and usual files:
1316         // usual is \batchmode and has a
1317         // special input@path to allow the including of figures
1318         // with either \input or \includegraphics (what figinsets do).
1319         // input@path is set when the actual parameter
1320         // original_path is set. This is done for usual tex-file, but not
1321         // for nice-latex-file. (Matthias 250696)
1322         // Note that input@path is only needed for something the user does
1323         // in the preamble, included .tex files or ERT, files included by
1324         // LyX work without it.
1325         if (output_preamble) {
1326                 if (!runparams.nice) {
1327                         // code for usual, NOT nice-latex-file
1328                         os << "\\batchmode\n"; // changed
1329                         // from \nonstopmode
1330                         d->texrow.newline();
1331                 }
1332                 if (!original_path.empty()) {
1333                         // FIXME UNICODE
1334                         // We don't know the encoding of inputpath
1335                         docstring const inputpath = from_utf8(support::latex_path(original_path));
1336                         docstring uncodable_glyphs;
1337                         Encoding const * const enc = runparams.encoding;
1338                         if (enc) {
1339                                 for (size_t n = 0; n < inputpath.size(); ++n) {
1340                                         docstring const glyph =
1341                                                 docstring(1, inputpath[n]);
1342                                         if (enc->latexChar(inputpath[n], true) != glyph) {
1343                                                 LYXERR0("Uncodable character '"
1344                                                         << glyph
1345                                                         << "' in input path!");
1346                                                 uncodable_glyphs += glyph;
1347                                         }
1348                                 }
1349                         }
1350
1351                         // warn user if we found uncodable glyphs.
1352                         if (!uncodable_glyphs.empty()) {
1353                                 frontend::Alert::warning(_("Uncodable character in file path"),
1354                                                 support::bformat(_("The path of your document\n"
1355                                                   "(%1$s)\n"
1356                                                   "contains glyphs that are unknown in the\n"
1357                                                   "current document encoding (namely %2$s).\n"
1358                                                   "This will likely result in incomplete output.\n\n"
1359                                                   "Choose an appropriate document encoding (such as utf8)\n"
1360                                                   "or change the file path name."), inputpath, uncodable_glyphs));
1361                         } else {
1362                                 os << "\\makeatletter\n"
1363                                    << "\\def\\input@path{{"
1364                                    << inputpath << "/}}\n"
1365                                    << "\\makeatother\n";
1366                                 d->texrow.newline();
1367                                 d->texrow.newline();
1368                                 d->texrow.newline();
1369                         }
1370                 }
1371
1372                 // get parent macros (if this buffer has a parent) which will be
1373                 // written at the document begin further down.
1374                 MacroSet parentMacros;
1375                 listParentMacros(parentMacros, features);
1376
1377                 // Write the preamble
1378                 runparams.use_babel = params().writeLaTeX(os, features,
1379                                                           d->texrow,
1380                                                           d->filename.onlyPath());
1381
1382                 runparams.use_japanese = features.isRequired("japanese");
1383
1384                 if (!output_body)
1385                         return;
1386
1387                 // make the body.
1388                 os << "\\begin{document}\n";
1389                 d->texrow.newline();
1390
1391                 // output the parent macros
1392                 MacroSet::iterator it = parentMacros.begin();
1393                 MacroSet::iterator end = parentMacros.end();
1394                 for (; it != end; ++it) {
1395                         int num_lines = (*it)->write(os, true);
1396                         d->texrow.newlines(num_lines);
1397                 }
1398
1399         } // output_preamble
1400
1401         d->texrow.start(paragraphs().begin()->id(), 0);
1402
1403         LYXERR(Debug::INFO, "preamble finished, now the body.");
1404
1405         // if we are doing a real file with body, even if this is the
1406         // child of some other buffer, let's cut the link here.
1407         // This happens for example if only a child document is printed.
1408         Buffer const * save_parent = 0;
1409         if (output_preamble) {
1410                 save_parent = d->parent();
1411                 d->setParent(0);
1412         }
1413
1414         // the real stuff
1415         latexParagraphs(*this, text(), os, d->texrow, runparams);
1416
1417         // Restore the parenthood if needed
1418         if (output_preamble)
1419                 d->setParent(save_parent);
1420
1421         // add this just in case after all the paragraphs
1422         os << endl;
1423         d->texrow.newline();
1424
1425         if (output_preamble) {
1426                 os << "\\end{document}\n";
1427                 d->texrow.newline();
1428                 LYXERR(Debug::LATEX, "makeLaTeXFile...done");
1429         } else {
1430                 LYXERR(Debug::LATEX, "LaTeXFile for inclusion made.");
1431         }
1432         runparams_in.encoding = runparams.encoding;
1433
1434         // Just to be sure. (Asger)
1435         d->texrow.newline();
1436
1437         //for (int i = 0; i<d->texrow.rows(); i++) {
1438         // int id,pos;
1439         // if (d->texrow.getIdFromRow(i+1,id,pos) && id>0)
1440         //      lyxerr << i+1 << ":" << id << ":" << getParFromID(id).paragraph().asString()<<"\n";
1441         //}
1442
1443         LYXERR(Debug::INFO, "Finished making LaTeX file.");
1444         LYXERR(Debug::INFO, "Row count was " << d->texrow.rows() - 1 << '.');
1445 }
1446
1447
1448 bool Buffer::isLatex() const
1449 {
1450         return params().documentClass().outputType() == LATEX;
1451 }
1452
1453
1454 bool Buffer::isLiterate() const
1455 {
1456         return params().documentClass().outputType() == LITERATE;
1457 }
1458
1459
1460 bool Buffer::isDocBook() const
1461 {
1462         return params().documentClass().outputType() == DOCBOOK;
1463 }
1464
1465
1466 void Buffer::makeDocBookFile(FileName const & fname,
1467                               OutputParams const & runparams,
1468                               bool const body_only) const
1469 {
1470         LYXERR(Debug::LATEX, "makeDocBookFile...");
1471
1472         ofdocstream ofs;
1473         if (!openFileWrite(ofs, fname))
1474                 return;
1475
1476         writeDocBookSource(ofs, fname.absFileName(), runparams, body_only);
1477
1478         ofs.close();
1479         if (ofs.fail())
1480                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1481 }
1482
1483
1484 void Buffer::writeDocBookSource(odocstream & os, string const & fname,
1485                              OutputParams const & runparams,
1486                              bool const only_body) const
1487 {
1488         LaTeXFeatures features(*this, params(), runparams);
1489         validate(features);
1490
1491         d->texrow.reset();
1492
1493         DocumentClass const & tclass = params().documentClass();
1494         string const top_element = tclass.latexname();
1495
1496         if (!only_body) {
1497                 if (runparams.flavor == OutputParams::XML)
1498                         os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
1499
1500                 // FIXME UNICODE
1501                 os << "<!DOCTYPE " << from_ascii(top_element) << ' ';
1502
1503                 // FIXME UNICODE
1504                 if (! tclass.class_header().empty())
1505                         os << from_ascii(tclass.class_header());
1506                 else if (runparams.flavor == OutputParams::XML)
1507                         os << "PUBLIC \"-//OASIS//DTD DocBook XML//EN\" "
1508                             << "\"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd\"";
1509                 else
1510                         os << " PUBLIC \"-//OASIS//DTD DocBook V4.2//EN\"";
1511
1512                 docstring preamble = from_utf8(params().preamble);
1513                 if (runparams.flavor != OutputParams::XML ) {
1514                         preamble += "<!ENTITY % output.print.png \"IGNORE\">\n";
1515                         preamble += "<!ENTITY % output.print.pdf \"IGNORE\">\n";
1516                         preamble += "<!ENTITY % output.print.eps \"IGNORE\">\n";
1517                         preamble += "<!ENTITY % output.print.bmp \"IGNORE\">\n";
1518                 }
1519
1520                 string const name = runparams.nice
1521                         ? changeExtension(absFileName(), ".sgml") : fname;
1522                 preamble += features.getIncludedFiles(name);
1523                 preamble += features.getLyXSGMLEntities();
1524
1525                 if (!preamble.empty()) {
1526                         os << "\n [ " << preamble << " ]";
1527                 }
1528                 os << ">\n\n";
1529         }
1530
1531         string top = top_element;
1532         top += " lang=\"";
1533         if (runparams.flavor == OutputParams::XML)
1534                 top += params().language->code();
1535         else
1536                 top += params().language->code().substr(0, 2);
1537         top += '"';
1538
1539         if (!params().options.empty()) {
1540                 top += ' ';
1541                 top += params().options;
1542         }
1543
1544         os << "<!-- " << ((runparams.flavor == OutputParams::XML)? "XML" : "SGML")
1545             << " file was created by LyX " << lyx_version
1546             << "\n  See http://www.lyx.org/ for more information -->\n";
1547
1548         params().documentClass().counters().reset();
1549
1550         updateMacros();
1551
1552         sgml::openTag(os, top);
1553         os << '\n';
1554         docbookParagraphs(text(), *this, os, runparams);
1555         sgml::closeTag(os, top_element);
1556 }
1557
1558
1559 void Buffer::makeLyXHTMLFile(FileName const & fname,
1560                               OutputParams const & runparams,
1561                               bool const body_only) const
1562 {
1563         LYXERR(Debug::LATEX, "makeLyXHTMLFile...");
1564
1565         ofdocstream ofs;
1566         if (!openFileWrite(ofs, fname))
1567                 return;
1568
1569         writeLyXHTMLSource(ofs, runparams, body_only);
1570
1571         ofs.close();
1572         if (ofs.fail())
1573                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1574 }
1575
1576
1577 void Buffer::writeLyXHTMLSource(odocstream & os,
1578                              OutputParams const & runparams,
1579                              bool const only_body) const
1580 {
1581         LaTeXFeatures features(*this, params(), runparams);
1582         validate(features);
1583         updateBuffer(UpdateMaster, OutputUpdate);
1584         d->bibinfo_.makeCitationLabels(*this);
1585         updateMacros();
1586         updateMacroInstances();
1587
1588         if (!only_body) {
1589                 os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
1590                    << "<!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"
1591                    // FIXME Language should be set properly.
1592                    << "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n"
1593                    << "<head>\n"
1594                    << "<meta name=\"GENERATOR\" content=\"" << PACKAGE_STRING << "\" />\n"
1595                    // FIXME Presumably need to set this right
1596                    << "<meta http-equiv=\"Content-type\" content=\"text/html;charset=UTF-8\" />\n";
1597
1598                 docstring const & doctitle = features.htmlTitle();
1599                 os << "<title>"
1600                    << (doctitle.empty() ? from_ascii("LyX Document") : doctitle)
1601                    << "</title>\n";
1602
1603                 os << "\n<!-- Text Class Preamble -->\n"
1604                    << features.getTClassHTMLPreamble()
1605                    << "\n<!-- Premable Snippets -->\n"
1606                    << from_utf8(features.getPreambleSnippets());
1607
1608                 os << "\n<!-- Layout-provided Styles -->\n";
1609                 docstring const styleinfo = features.getTClassHTMLStyles();
1610                 if (!styleinfo.empty()) {
1611                         os << "<style type='text/css'>\n"
1612                                 << styleinfo
1613                                 << "</style>\n";
1614                 }
1615                 os << "</head>\n<body>\n";
1616         }
1617
1618         XHTMLStream xs(os);
1619         params().documentClass().counters().reset();
1620         xhtmlParagraphs(text(), *this, xs, runparams);
1621         if (!only_body)
1622                 os << "</body>\n</html>\n";
1623 }
1624
1625
1626 // chktex should be run with these flags disabled: 3, 22, 25, 30, 38(?)
1627 // Other flags: -wall -v0 -x
1628 int Buffer::runChktex()
1629 {
1630         setBusy(true);
1631
1632         // get LaTeX-Filename
1633         FileName const path(temppath());
1634         string const name = addName(path.absFileName(), latexName());
1635         string const org_path = filePath();
1636
1637         PathChanger p(path); // path to LaTeX file
1638         message(_("Running chktex..."));
1639
1640         // Generate the LaTeX file if neccessary
1641         OutputParams runparams(&params().encoding());
1642         runparams.flavor = OutputParams::LATEX;
1643         runparams.nice = false;
1644         runparams.linelen = lyxrc.plaintext_linelen;
1645         makeLaTeXFile(FileName(name), org_path, runparams);
1646
1647         TeXErrors terr;
1648         Chktex chktex(lyxrc.chktex_command, onlyFileName(name), filePath());
1649         int const res = chktex.run(terr); // run chktex
1650
1651         if (res == -1) {
1652                 Alert::error(_("chktex failure"),
1653                              _("Could not run chktex successfully."));
1654         } else if (res > 0) {
1655                 ErrorList & errlist = d->errorLists["ChkTeX"];
1656                 errlist.clear();
1657                 bufferErrors(terr, errlist);
1658         }
1659
1660         setBusy(false);
1661
1662         errors("ChkTeX");
1663
1664         return res;
1665 }
1666
1667
1668 void Buffer::validate(LaTeXFeatures & features) const
1669 {
1670         params().validate(features);
1671
1672         updateMacros();
1673
1674         for_each(paragraphs().begin(), paragraphs().end(),
1675                  bind(&Paragraph::validate, _1, ref(features)));
1676
1677         if (lyxerr.debugging(Debug::LATEX)) {
1678                 features.showStruct();
1679         }
1680 }
1681
1682
1683 void Buffer::getLabelList(vector<docstring> & list) const
1684 {
1685         // If this is a child document, use the parent's list instead.
1686         Buffer const * const pbuf = d->parent();
1687         if (pbuf) {
1688                 pbuf->getLabelList(list);
1689                 return;
1690         }
1691
1692         list.clear();
1693         Toc & toc = d->toc_backend.toc("label");
1694         TocIterator toc_it = toc.begin();
1695         TocIterator end = toc.end();
1696         for (; toc_it != end; ++toc_it) {
1697                 if (toc_it->depth() == 0)
1698                         list.push_back(toc_it->str());
1699         }
1700 }
1701
1702
1703 void Buffer::updateBibfilesCache(UpdateScope scope) const
1704 {
1705         // FIXME This is probably unnecssary, given where we call this.
1706         // If this is a child document, use the parent's cache instead.
1707         Buffer const * const pbuf = d->parent();
1708         if (pbuf && scope != UpdateChildOnly) {
1709                 pbuf->updateBibfilesCache();
1710                 return;
1711         }
1712
1713         d->bibfiles_cache_.clear();
1714         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
1715                 if (it->lyxCode() == BIBTEX_CODE) {
1716                         InsetBibtex const & inset =
1717                                 static_cast<InsetBibtex const &>(*it);
1718                         support::FileNameList const bibfiles = inset.getBibFiles();
1719                         d->bibfiles_cache_.insert(d->bibfiles_cache_.end(),
1720                                 bibfiles.begin(),
1721                                 bibfiles.end());
1722                 } else if (it->lyxCode() == INCLUDE_CODE) {
1723                         InsetInclude & inset =
1724                                 static_cast<InsetInclude &>(*it);
1725                         Buffer const * const incbuf = inset.getChildBuffer();
1726                         if (!incbuf)
1727                                 continue;
1728                         support::FileNameList const & bibfiles =
1729                                         incbuf->getBibfilesCache(UpdateChildOnly);
1730                         if (!bibfiles.empty()) {
1731                                 d->bibfiles_cache_.insert(d->bibfiles_cache_.end(),
1732                                         bibfiles.begin(),
1733                                         bibfiles.end());
1734                         }
1735                 }
1736         }
1737         d->bibfile_cache_valid_ = true;
1738         d->bibinfo_cache_valid_ = false;
1739 }
1740
1741
1742 void Buffer::invalidateBibinfoCache() const
1743 {
1744         d->bibinfo_cache_valid_ = false;
1745         // also invalidate the cache for the parent buffer
1746         Buffer const * const pbuf = d->parent();
1747         if (pbuf)
1748                 pbuf->invalidateBibinfoCache();
1749 }
1750
1751
1752 void Buffer::invalidateBibfileCache() const
1753 {
1754         d->bibfile_cache_valid_ = false;
1755         d->bibinfo_cache_valid_ = false;
1756         // also invalidate the cache for the parent buffer
1757         Buffer const * const pbuf = d->parent();
1758         if (pbuf)
1759                 pbuf->invalidateBibfileCache();
1760 }
1761
1762
1763 support::FileNameList const & Buffer::getBibfilesCache(UpdateScope scope) const
1764 {
1765         // FIXME This is probably unnecessary, given where we call this.
1766         // If this is a child document, use the master's cache instead.
1767         Buffer const * const pbuf = masterBuffer();
1768         if (pbuf != this && scope != UpdateChildOnly)
1769                 return pbuf->getBibfilesCache();
1770
1771         if (!d->bibfile_cache_valid_)
1772                 this->updateBibfilesCache(scope);
1773
1774         return d->bibfiles_cache_;
1775 }
1776
1777
1778 BiblioInfo const & Buffer::masterBibInfo() const
1779 {
1780         Buffer const * const tmp = masterBuffer();
1781         if (tmp != this)
1782                 return tmp->masterBibInfo();
1783         return d->bibinfo_;
1784 }
1785
1786
1787 void Buffer::checkBibInfoCache() const
1788 {
1789         // use the master's cache
1790         Buffer const * const tmp = masterBuffer();
1791         if (tmp != this) {
1792                 tmp->checkBibInfoCache();
1793                 return;
1794         }
1795
1796         // this will also reload the cache if it is invalid
1797         support::FileNameList const & bibfiles_cache = getBibfilesCache();
1798
1799         // compare the cached timestamps with the actual ones.
1800         support::FileNameList::const_iterator ei = bibfiles_cache.begin();
1801         support::FileNameList::const_iterator en = bibfiles_cache.end();
1802         for (; ei != en; ++ ei) {
1803                 time_t lastw = ei->lastModified();
1804                 time_t prevw = d->bibfile_status_[*ei];
1805                 if (lastw != prevw) {
1806                         d->bibinfo_cache_valid_ = false;
1807                         d->bibfile_status_[*ei] = lastw;
1808                 }
1809         }
1810
1811         // if not valid, then reload the info
1812         if (!d->bibinfo_cache_valid_) {
1813                 d->bibinfo_.clear();
1814                 fillWithBibKeys(d->bibinfo_);
1815                 d->bibinfo_cache_valid_ = true;
1816         }
1817 }
1818
1819
1820 void Buffer::fillWithBibKeys(BiblioInfo & keys) const
1821 {
1822         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it)
1823                 it->fillWithBibKeys(keys, it);
1824 }
1825
1826
1827 bool Buffer::isDepClean(string const & name) const
1828 {
1829         DepClean::const_iterator const it = d->dep_clean.find(name);
1830         if (it == d->dep_clean.end())
1831                 return true;
1832         return it->second;
1833 }
1834
1835
1836 void Buffer::markDepClean(string const & name)
1837 {
1838         d->dep_clean[name] = true;
1839 }
1840
1841
1842 bool Buffer::isExportableFormat(string const & format) const
1843 {
1844                 typedef vector<Format const *> Formats;
1845                 Formats formats;
1846                 formats = exportableFormats(true);
1847                 Formats::const_iterator fit = formats.begin();
1848                 Formats::const_iterator end = formats.end();
1849                 for (; fit != end ; ++fit) {
1850                         if ((*fit)->name() == format)
1851                                 return true;
1852                 }
1853                 return false;
1854 }
1855
1856
1857 bool Buffer::getStatus(FuncRequest const & cmd, FuncStatus & flag)
1858 {
1859         if (isInternal()) {
1860                 // FIXME? if there is an Buffer LFUN that can be dispatched even
1861                 // if internal, put a switch '(cmd.action)' here.
1862                 return false;
1863         }
1864
1865         bool enable = true;
1866
1867         switch (cmd.action()) {
1868
1869                 case LFUN_BUFFER_TOGGLE_READ_ONLY:
1870                         flag.setOnOff(isReadonly());
1871                         break;
1872
1873                 // FIXME: There is need for a command-line import.
1874                 //case LFUN_BUFFER_IMPORT:
1875
1876                 case LFUN_BUFFER_AUTO_SAVE:
1877                         break;
1878
1879                 case LFUN_BUFFER_EXPORT_CUSTOM:
1880                         // FIXME: Nothing to check here?
1881                         break;
1882
1883                 case LFUN_BUFFER_EXPORT: {
1884                         docstring const arg = cmd.argument();
1885                         enable = arg == "custom" || isExportable(to_utf8(arg));
1886                         if (!enable)
1887                                 flag.message(bformat(
1888                                         _("Don't know how to export to format: %1$s"), arg));
1889                         break;
1890                 }
1891
1892                 case LFUN_BUFFER_CHKTEX:
1893                         enable = isLatex() && !lyxrc.chktex_command.empty();
1894                         break;
1895
1896                 case LFUN_BUILD_PROGRAM:
1897                         enable = isExportable("program");
1898                         break;
1899
1900                 case LFUN_BRANCH_ACTIVATE:
1901                 case LFUN_BRANCH_DEACTIVATE: {
1902                         BranchList const & branchList = params().branchlist();
1903                         docstring const branchName = cmd.argument();
1904                         enable = !branchName.empty() && branchList.find(branchName);
1905                         break;
1906                 }
1907
1908                 case LFUN_BRANCH_ADD:
1909                 case LFUN_BRANCHES_RENAME:
1910                 case LFUN_BUFFER_PRINT:
1911                         // if no Buffer is present, then of course we won't be called!
1912                         break;
1913
1914                 case LFUN_BUFFER_LANGUAGE:
1915                         enable = !isReadonly();
1916                         break;
1917
1918                 default:
1919                         return false;
1920         }
1921         flag.setEnabled(enable);
1922         return true;
1923 }
1924
1925
1926 void Buffer::dispatch(string const & command, DispatchResult & result)
1927 {
1928         return dispatch(lyxaction.lookupFunc(command), result);
1929 }
1930
1931
1932 // NOTE We can end up here even if we have no GUI, because we are called
1933 // by LyX::exec to handled command-line requests. So we may need to check
1934 // whether we have a GUI or not. The boolean use_gui holds this information.
1935 void Buffer::dispatch(FuncRequest const & func, DispatchResult & dr)
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                 dr.dispatched(false);
1941                 return;
1942         }
1943         string const argument = to_utf8(func.argument());
1944         // We'll set this back to false if need be.
1945         bool dispatched = true;
1946         undo().beginUndoGroup();
1947
1948         switch (func.action()) {
1949         case LFUN_BUFFER_TOGGLE_READ_ONLY:
1950                 if (lyxvc().inUse())
1951                         lyxvc().toggleReadOnly();
1952                 else
1953                         setReadonly(!isReadonly());
1954                 break;
1955
1956         case LFUN_BUFFER_EXPORT: {
1957                 bool success = doExport(argument, false, false);
1958                 dr.setError(!success);
1959                 if (!success)
1960                         dr.setMessage(bformat(_("Error exporting to format: %1$s."),
1961                                               func.argument()));
1962                 break;
1963         }
1964
1965         case LFUN_BUILD_PROGRAM:
1966                 doExport("program", true, false);
1967                 break;
1968
1969         case LFUN_BUFFER_CHKTEX:
1970                 runChktex();
1971                 break;
1972
1973         case LFUN_BUFFER_EXPORT_CUSTOM: {
1974                 string format_name;
1975                 string command = split(argument, format_name, ' ');
1976                 Format const * format = formats.getFormat(format_name);
1977                 if (!format) {
1978                         lyxerr << "Format \"" << format_name
1979                                 << "\" not recognized!"
1980                                 << endl;
1981                         break;
1982                 }
1983
1984                 // The name of the file created by the conversion process
1985                 string filename;
1986
1987                 // Output to filename
1988                 if (format->name() == "lyx") {
1989                         string const latexname = latexName(false);
1990                         filename = changeExtension(latexname,
1991                                 format->extension());
1992                         filename = addName(temppath(), filename);
1993
1994                         if (!writeFile(FileName(filename)))
1995                                 break;
1996
1997                 } else {
1998                         doExport(format_name, true, false, filename);
1999                 }
2000
2001                 // Substitute $$FName for filename
2002                 if (!contains(command, "$$FName"))
2003                         command = "( " + command + " ) < $$FName";
2004                 command = subst(command, "$$FName", filename);
2005
2006                 // Execute the command in the background
2007                 Systemcall call;
2008                 call.startscript(Systemcall::DontWait, command);
2009                 break;
2010         }
2011
2012         // FIXME: There is need for a command-line import.
2013         /*
2014         case LFUN_BUFFER_IMPORT:
2015                 doImport(argument);
2016                 break;
2017         */
2018
2019         case LFUN_BUFFER_AUTO_SAVE:
2020                 autoSave();
2021                 break;
2022
2023         case LFUN_BRANCH_ADD: {
2024                 docstring branch_name = func.argument();
2025                 if (branch_name.empty()) {
2026                         dispatched = false;
2027                         break;
2028                 }
2029                 BranchList & branch_list = params().branchlist();
2030                 vector<docstring> const branches =
2031                         getVectorFromString(branch_name, branch_list.separator());
2032                 docstring msg;
2033                 for (vector<docstring>::const_iterator it = branches.begin();
2034                      it != branches.end(); ++it) {
2035                         branch_name = *it;
2036                         Branch * branch = branch_list.find(branch_name);
2037                         if (branch) {
2038                                 LYXERR0("Branch " << branch_name << " already exists.");
2039                                 dr.setError(true);
2040                                 if (!msg.empty())
2041                                         msg += ("\n");
2042                                 msg += bformat(_("Branch \"%1$s\" already exists."), branch_name);
2043                         } else {
2044                                 branch_list.add(branch_name);
2045                                 branch = branch_list.find(branch_name);
2046                                 string const x11hexname = X11hexname(branch->color());
2047                                 docstring const str = branch_name + ' ' + from_ascii(x11hexname);
2048                                 lyx::dispatch(FuncRequest(LFUN_SET_COLOR, str));
2049                                 dr.setError(false);
2050                                 dr.update(Update::Force);
2051                         }
2052                 }
2053                 if (!msg.empty())
2054                         dr.setMessage(msg);
2055                 break;
2056         }
2057
2058         case LFUN_BRANCH_ACTIVATE:
2059         case LFUN_BRANCH_DEACTIVATE: {
2060                 BranchList & branchList = params().branchlist();
2061                 docstring const branchName = func.argument();
2062                 // the case without a branch name is handled elsewhere
2063                 if (branchName.empty()) {
2064                         dispatched = false;
2065                         break;
2066                 }
2067                 Branch * branch = branchList.find(branchName);
2068                 if (!branch) {
2069                         LYXERR0("Branch " << branchName << " does not exist.");
2070                         dr.setError(true);
2071                         docstring const msg =
2072                                 bformat(_("Branch \"%1$s\" does not exist."), branchName);
2073                         dr.setMessage(msg);
2074                 } else {
2075                         branch->setSelected(func.action() == LFUN_BRANCH_ACTIVATE);
2076                         dr.setError(false);
2077                         dr.update(Update::Force);
2078                         dr.forceBufferUpdate();
2079                 }
2080                 break;
2081         }
2082
2083         case LFUN_BRANCHES_RENAME: {
2084                 if (func.argument().empty())
2085                         break;
2086
2087                 docstring const oldname = from_utf8(func.getArg(0));
2088                 docstring const newname = from_utf8(func.getArg(1));
2089                 InsetIterator it  = inset_iterator_begin(inset());
2090                 InsetIterator const end = inset_iterator_end(inset());
2091                 bool success = false;
2092                 for (; it != end; ++it) {
2093                         if (it->lyxCode() == BRANCH_CODE) {
2094                                 InsetBranch & ins = static_cast<InsetBranch &>(*it);
2095                                 if (ins.branch() == oldname) {
2096                                         undo().recordUndo(it);
2097                                         ins.rename(newname);
2098                                         success = true;
2099                                         continue;
2100                                 }
2101                         }
2102                         if (it->lyxCode() == INCLUDE_CODE) {
2103                                 // get buffer of external file
2104                                 InsetInclude const & ins =
2105                                         static_cast<InsetInclude const &>(*it);
2106                                 Buffer * child = ins.getChildBuffer();
2107                                 if (!child)
2108                                         continue;
2109                                 child->dispatch(func, dr);
2110                         }
2111                 }
2112
2113                 if (success) {
2114                         dr.update(Update::Force);
2115                         dr.forceBufferUpdate();
2116                 }
2117                 break;
2118         }
2119
2120         case LFUN_BUFFER_PRINT: {
2121                 // we'll assume there's a problem until we succeed
2122                 dr.setError(true);
2123                 string target = func.getArg(0);
2124                 string target_name = func.getArg(1);
2125                 string command = func.getArg(2);
2126
2127                 if (target.empty()
2128                     || target_name.empty()
2129                     || command.empty()) {
2130                         LYXERR0("Unable to parse " << func.argument());
2131                         docstring const msg =
2132                                 bformat(_("Unable to parse \"%1$s\""), func.argument());
2133                         dr.setMessage(msg);
2134                         break;
2135                 }
2136                 if (target != "printer" && target != "file") {
2137                         LYXERR0("Unrecognized target \"" << target << '"');
2138                         docstring const msg =
2139                                 bformat(_("Unrecognized target \"%1$s\""), from_utf8(target));
2140                         dr.setMessage(msg);
2141                         break;
2142                 }
2143
2144                 bool const update_unincluded =
2145                                 params().maintain_unincluded_children
2146                                 && !params().getIncludedChildren().empty();
2147                 if (!doExport("dvi", true, update_unincluded)) {
2148                         showPrintError(absFileName());
2149                         dr.setMessage(_("Error exporting to DVI."));
2150                         break;
2151                 }
2152
2153                 // Push directory path.
2154                 string const path = temppath();
2155                 // Prevent the compiler from optimizing away p
2156                 FileName pp(path);
2157                 PathChanger p(pp);
2158
2159                 // there are three cases here:
2160                 // 1. we print to a file
2161                 // 2. we print directly to a printer
2162                 // 3. we print using a spool command (print to file first)
2163                 Systemcall one;
2164                 int res = 0;
2165                 string const dviname = changeExtension(latexName(true), "dvi");
2166
2167                 if (target == "printer") {
2168                         if (!lyxrc.print_spool_command.empty()) {
2169                                 // case 3: print using a spool
2170                                 string const psname = changeExtension(dviname,".ps");
2171                                 command += ' ' + lyxrc.print_to_file
2172                                         + quoteName(psname)
2173                                         + ' '
2174                                         + quoteName(dviname);
2175
2176                                 string command2 = lyxrc.print_spool_command + ' ';
2177                                 if (target_name != "default") {
2178                                         command2 += lyxrc.print_spool_printerprefix
2179                                                 + target_name
2180                                                 + ' ';
2181                                 }
2182                                 command2 += quoteName(psname);
2183                                 // First run dvips.
2184                                 // If successful, then spool command
2185                                 res = one.startscript(Systemcall::Wait, command);
2186
2187                                 if (res == 0) {
2188                                         // If there's no GUI, we have to wait on this command. Otherwise,
2189                                         // LyX deletes the temporary directory, and with it the spooled
2190                                         // file, before it can be printed!!
2191                                         Systemcall::Starttype stype = use_gui ?
2192                                                 Systemcall::DontWait : Systemcall::Wait;
2193                                         res = one.startscript(stype, command2);
2194                                 }
2195                         } else {
2196                                 // case 2: print directly to a printer
2197                                 if (target_name != "default")
2198                                         command += ' ' + lyxrc.print_to_printer + target_name + ' ';
2199                                 // as above....
2200                                 Systemcall::Starttype stype = use_gui ?
2201                                         Systemcall::DontWait : Systemcall::Wait;
2202                                 res = one.startscript(stype, command + quoteName(dviname));
2203                         }
2204
2205                 } else {
2206                         // case 1: print to a file
2207                         FileName const filename(makeAbsPath(target_name, filePath()));
2208                         FileName const dvifile(makeAbsPath(dviname, path));
2209                         if (filename.exists()) {
2210                                 docstring text = bformat(
2211                                         _("The file %1$s already exists.\n\n"
2212                                           "Do you want to overwrite that file?"),
2213                                         makeDisplayPath(filename.absFileName()));
2214                                 if (Alert::prompt(_("Overwrite file?"),
2215                                                   text, 0, 1, _("&Overwrite"), _("&Cancel")) != 0)
2216                                         break;
2217                         }
2218                         command += ' ' + lyxrc.print_to_file
2219                                 + quoteName(filename.toFilesystemEncoding())
2220                                 + ' '
2221                                 + quoteName(dvifile.toFilesystemEncoding());
2222                         // as above....
2223                         Systemcall::Starttype stype = use_gui ?
2224                                 Systemcall::DontWait : Systemcall::Wait;
2225                         res = one.startscript(stype, command);
2226                 }
2227
2228                 if (res == 0)
2229                         dr.setError(false);
2230                 else {
2231                         dr.setMessage(_("Error running external commands."));
2232                         showPrintError(absFileName());
2233                 }
2234                 break;
2235         }
2236
2237         case LFUN_BUFFER_LANGUAGE: {
2238                 Language const * oldL = params().language;
2239                 Language const * newL = languages.getLanguage(argument);
2240                 if (!newL || oldL == newL)
2241                         break;
2242                 if (oldL->rightToLeft() == newL->rightToLeft() && !isMultiLingual()) {
2243                         changeLanguage(oldL, newL);
2244                         dr.forceBufferUpdate();
2245                 }
2246                 break;
2247         }
2248
2249         default:
2250                 dispatched = false;
2251                 break;
2252         }
2253         dr.dispatched(dispatched);
2254         undo().endUndoGroup();
2255 }
2256
2257
2258 void Buffer::changeLanguage(Language const * from, Language const * to)
2259 {
2260         LASSERT(from, /**/);
2261         LASSERT(to, /**/);
2262
2263         for_each(par_iterator_begin(),
2264                  par_iterator_end(),
2265                  bind(&Paragraph::changeLanguage, _1, params(), from, to));
2266 }
2267
2268
2269 bool Buffer::isMultiLingual() const
2270 {
2271         ParConstIterator end = par_iterator_end();
2272         for (ParConstIterator it = par_iterator_begin(); it != end; ++it)
2273                 if (it->isMultiLingual(params()))
2274                         return true;
2275
2276         return false;
2277 }
2278
2279
2280 std::set<Language const *> Buffer::getLanguages() const
2281 {
2282         std::set<Language const *> languages;
2283         getLanguages(languages);
2284         return languages;
2285 }
2286
2287
2288 void Buffer::getLanguages(std::set<Language const *> & languages) const
2289 {
2290         ParConstIterator end = par_iterator_end();
2291         // add the buffer language, even if it's not actively used
2292         languages.insert(language());
2293         // iterate over the paragraphs
2294         for (ParConstIterator it = par_iterator_begin(); it != end; ++it)
2295                 it->getLanguages(languages);
2296         // also children
2297         ListOfBuffers clist = getChildren();
2298         ListOfBuffers::const_iterator cit = clist.begin();
2299         ListOfBuffers::const_iterator const cen = clist.end();
2300         for (; cit != cen; ++cit)
2301                 (*cit)->getLanguages(languages);
2302 }
2303
2304
2305 DocIterator Buffer::getParFromID(int const id) const
2306 {
2307         Buffer * buf = const_cast<Buffer *>(this);
2308         if (id < 0) {
2309                 // John says this is called with id == -1 from undo
2310                 lyxerr << "getParFromID(), id: " << id << endl;
2311                 return doc_iterator_end(buf);
2312         }
2313
2314         for (DocIterator it = doc_iterator_begin(buf); !it.atEnd(); it.forwardPar())
2315                 if (it.paragraph().id() == id)
2316                         return it;
2317
2318         return doc_iterator_end(buf);
2319 }
2320
2321
2322 bool Buffer::hasParWithID(int const id) const
2323 {
2324         return !getParFromID(id).atEnd();
2325 }
2326
2327
2328 ParIterator Buffer::par_iterator_begin()
2329 {
2330         return ParIterator(doc_iterator_begin(this));
2331 }
2332
2333
2334 ParIterator Buffer::par_iterator_end()
2335 {
2336         return ParIterator(doc_iterator_end(this));
2337 }
2338
2339
2340 ParConstIterator Buffer::par_iterator_begin() const
2341 {
2342         return ParConstIterator(doc_iterator_begin(this));
2343 }
2344
2345
2346 ParConstIterator Buffer::par_iterator_end() const
2347 {
2348         return ParConstIterator(doc_iterator_end(this));
2349 }
2350
2351
2352 Language const * Buffer::language() const
2353 {
2354         return params().language;
2355 }
2356
2357
2358 docstring const Buffer::B_(string const & l10n) const
2359 {
2360         return params().B_(l10n);
2361 }
2362
2363
2364 bool Buffer::isClean() const
2365 {
2366         return d->lyx_clean;
2367 }
2368
2369
2370 bool Buffer::isExternallyModified(CheckMethod method) const
2371 {
2372         LASSERT(d->filename.exists(), /**/);
2373         // if method == timestamp, check timestamp before checksum
2374         return (method == checksum_method
2375                 || d->timestamp_ != d->filename.lastModified())
2376                 && d->checksum_ != d->filename.checksum();
2377 }
2378
2379
2380 void Buffer::saveCheckSum(FileName const & file) const
2381 {
2382         if (file.exists()) {
2383                 d->timestamp_ = file.lastModified();
2384                 d->checksum_ = file.checksum();
2385         } else {
2386                 // in the case of save to a new file.
2387                 d->timestamp_ = 0;
2388                 d->checksum_ = 0;
2389         }
2390 }
2391
2392
2393 void Buffer::markClean() const
2394 {
2395         if (!d->lyx_clean) {
2396                 d->lyx_clean = true;
2397                 updateTitles();
2398         }
2399         // if the .lyx file has been saved, we don't need an
2400         // autosave
2401         d->bak_clean = true;
2402         d->undo_.markDirty();
2403 }
2404
2405
2406 void Buffer::setUnnamed(bool flag)
2407 {
2408         d->unnamed = flag;
2409 }
2410
2411
2412 bool Buffer::isUnnamed() const
2413 {
2414         return d->unnamed;
2415 }
2416
2417
2418 /// \note
2419 /// Don't check unnamed, here: isInternal() is used in
2420 /// newBuffer(), where the unnamed flag has not been set by anyone
2421 /// yet. Also, for an internal buffer, there should be no need for
2422 /// retrieving fileName() nor for checking if it is unnamed or not.
2423 bool Buffer::isInternal() const
2424 {
2425         return fileName().extension() == "internal";
2426 }
2427
2428
2429 void Buffer::markDirty()
2430 {
2431         if (d->lyx_clean) {
2432                 d->lyx_clean = false;
2433                 updateTitles();
2434         }
2435         d->bak_clean = false;
2436
2437         DepClean::iterator it = d->dep_clean.begin();
2438         DepClean::const_iterator const end = d->dep_clean.end();
2439
2440         for (; it != end; ++it)
2441                 it->second = false;
2442 }
2443
2444
2445 FileName Buffer::fileName() const
2446 {
2447         return d->filename;
2448 }
2449
2450
2451 string Buffer::absFileName() const
2452 {
2453         return d->filename.absFileName();
2454 }
2455
2456
2457 string Buffer::filePath() const
2458 {
2459         return d->filename.onlyPath().absFileName() + "/";
2460 }
2461
2462
2463 bool Buffer::isReadonly() const
2464 {
2465         return d->read_only;
2466 }
2467
2468
2469 void Buffer::setParent(Buffer const * buffer)
2470 {
2471         // Avoids recursive include.
2472         d->setParent(buffer == this ? 0 : buffer);
2473         updateMacros();
2474 }
2475
2476
2477 Buffer const * Buffer::parent() const
2478 {
2479         return d->parent();
2480 }
2481
2482
2483 ListOfBuffers Buffer::allRelatives() const
2484 {
2485         if (parent())
2486                 return parent()->allRelatives();
2487         return getChildren(/* true */);
2488 }
2489
2490
2491 Buffer const * Buffer::masterBuffer() const
2492 {
2493         Buffer const * const pbuf = d->parent();
2494         if (!pbuf)
2495                 return this;
2496
2497         return pbuf->masterBuffer();
2498 }
2499
2500
2501 bool Buffer::isChild(Buffer * child) const
2502 {
2503         return d->children_positions.find(child) != d->children_positions.end();
2504 }
2505
2506
2507 DocIterator Buffer::firstChildPosition(Buffer const * child)
2508 {
2509         Impl::BufferPositionMap::iterator it;
2510         it = d->children_positions.find(child);
2511         if (it == d->children_positions.end())
2512                 return DocIterator(this);
2513         return it->second;
2514 }
2515
2516
2517 void Buffer::getChildren(ListOfBuffers & clist, bool grand_children) const
2518 {
2519         // loop over children
2520         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
2521         Impl::BufferPositionMap::iterator end = d->children_positions.end();
2522         for (; it != end; ++it) {
2523                 Buffer * child = const_cast<Buffer *>(it->first);
2524                 clist.push_back(child);
2525                 if (grand_children)
2526                         // there might be grandchildren
2527                         child->getChildren(clist /*, true */);
2528         }
2529 }
2530
2531
2532 ListOfBuffers Buffer::getChildren(bool grand_children) const
2533 {
2534         ListOfBuffers v;
2535         getChildren(v, grand_children);
2536         return v;
2537 }
2538
2539
2540 template<typename M>
2541 typename M::const_iterator greatest_below(M & m, typename M::key_type const & x)
2542 {
2543         if (m.empty())
2544                 return m.end();
2545
2546         typename M::const_iterator it = m.lower_bound(x);
2547         if (it == m.begin())
2548                 return m.end();
2549
2550         it--;
2551         return it;
2552 }
2553
2554
2555 MacroData const * Buffer::Impl::getBufferMacro(docstring const & name,
2556                                          DocIterator const & pos) const
2557 {
2558         LYXERR(Debug::MACROS, "Searching for " << to_ascii(name) << " at " << pos);
2559
2560         // if paragraphs have no macro context set, pos will be empty
2561         if (pos.empty())
2562                 return 0;
2563
2564         // we haven't found anything yet
2565         DocIterator bestPos = owner_->par_iterator_begin();
2566         MacroData const * bestData = 0;
2567
2568         // find macro definitions for name
2569         NamePositionScopeMacroMap::const_iterator nameIt = macros.find(name);
2570         if (nameIt != macros.end()) {
2571                 // find last definition in front of pos or at pos itself
2572                 PositionScopeMacroMap::const_iterator it
2573                         = greatest_below(nameIt->second, pos);
2574                 if (it != nameIt->second.end()) {
2575                         while (true) {
2576                                 // scope ends behind pos?
2577                                 if (pos < it->second.first) {
2578                                         // Looks good, remember this. If there
2579                                         // is no external macro behind this,
2580                                         // we found the right one already.
2581                                         bestPos = it->first;
2582                                         bestData = &it->second.second;
2583                                         break;
2584                                 }
2585
2586                                 // try previous macro if there is one
2587                                 if (it == nameIt->second.begin())
2588                                         break;
2589                                 it--;
2590                         }
2591                 }
2592         }
2593
2594         // find macros in included files
2595         PositionScopeBufferMap::const_iterator it
2596                 = greatest_below(position_to_children, pos);
2597         if (it == position_to_children.end())
2598                 // no children before
2599                 return bestData;
2600
2601         while (true) {
2602                 // do we know something better (i.e. later) already?
2603                 if (it->first < bestPos )
2604                         break;
2605
2606                 // scope ends behind pos?
2607                 if (pos < it->second.first) {
2608                         // look for macro in external file
2609                         macro_lock = true;
2610                         MacroData const * data
2611                                 = it->second.second->getMacro(name, false);
2612                         macro_lock = false;
2613                         if (data) {
2614                                 bestPos = it->first;
2615                                 bestData = data;
2616                                 break;
2617                         }
2618                 }
2619
2620                 // try previous file if there is one
2621                 if (it == position_to_children.begin())
2622                         break;
2623                 --it;
2624         }
2625
2626         // return the best macro we have found
2627         return bestData;
2628 }
2629
2630
2631 MacroData const * Buffer::getMacro(docstring const & name,
2632         DocIterator const & pos, bool global) const
2633 {
2634         if (d->macro_lock)
2635                 return 0;
2636
2637         // query buffer macros
2638         MacroData const * data = d->getBufferMacro(name, pos);
2639         if (data != 0)
2640                 return data;
2641
2642         // If there is a master buffer, query that
2643         Buffer const * const pbuf = d->parent();
2644         if (pbuf) {
2645                 d->macro_lock = true;
2646                 MacroData const * macro = pbuf->getMacro(
2647                         name, *this, false);
2648                 d->macro_lock = false;
2649                 if (macro)
2650                         return macro;
2651         }
2652
2653         if (global) {
2654                 data = MacroTable::globalMacros().get(name);
2655                 if (data != 0)
2656                         return data;
2657         }
2658
2659         return 0;
2660 }
2661
2662
2663 MacroData const * Buffer::getMacro(docstring const & name, bool global) const
2664 {
2665         // set scope end behind the last paragraph
2666         DocIterator scope = par_iterator_begin();
2667         scope.pit() = scope.lastpit() + 1;
2668
2669         return getMacro(name, scope, global);
2670 }
2671
2672
2673 MacroData const * Buffer::getMacro(docstring const & name,
2674         Buffer const & child, bool global) const
2675 {
2676         // look where the child buffer is included first
2677         Impl::BufferPositionMap::iterator it = d->children_positions.find(&child);
2678         if (it == d->children_positions.end())
2679                 return 0;
2680
2681         // check for macros at the inclusion position
2682         return getMacro(name, it->second, global);
2683 }
2684
2685
2686 void Buffer::Impl::updateMacros(DocIterator & it, DocIterator & scope)
2687 {
2688         pit_type const lastpit = it.lastpit();
2689
2690         // look for macros in each paragraph
2691         while (it.pit() <= lastpit) {
2692                 Paragraph & par = it.paragraph();
2693
2694                 // iterate over the insets of the current paragraph
2695                 InsetList const & insets = par.insetList();
2696                 InsetList::const_iterator iit = insets.begin();
2697                 InsetList::const_iterator end = insets.end();
2698                 for (; iit != end; ++iit) {
2699                         it.pos() = iit->pos;
2700
2701                         // is it a nested text inset?
2702                         if (iit->inset->asInsetText()) {
2703                                 // Inset needs its own scope?
2704                                 InsetText const * itext = iit->inset->asInsetText();
2705                                 bool newScope = itext->isMacroScope();
2706
2707                                 // scope which ends just behind the inset
2708                                 DocIterator insetScope = it;
2709                                 ++insetScope.pos();
2710
2711                                 // collect macros in inset
2712                                 it.push_back(CursorSlice(*iit->inset));
2713                                 updateMacros(it, newScope ? insetScope : scope);
2714                                 it.pop_back();
2715                                 continue;
2716                         }
2717
2718                         // is it an external file?
2719                         if (iit->inset->lyxCode() == INCLUDE_CODE) {
2720                                 // get buffer of external file
2721                                 InsetInclude const & inset =
2722                                         static_cast<InsetInclude const &>(*iit->inset);
2723                                 macro_lock = true;
2724                                 Buffer * child = inset.getChildBuffer();
2725                                 macro_lock = false;
2726                                 if (!child)
2727                                         continue;
2728
2729                                 // register its position, but only when it is
2730                                 // included first in the buffer
2731                                 if (children_positions.find(child) ==
2732                                         children_positions.end())
2733                                                 children_positions[child] = it;
2734
2735                                 // register child with its scope
2736                                 position_to_children[it] = Impl::ScopeBuffer(scope, child);
2737                                 continue;
2738                         }
2739
2740                         if (doing_export && iit->inset->asInsetMath()) {
2741                                 InsetMath * im = static_cast<InsetMath *>(iit->inset);
2742                                 if (im->asHullInset()) {
2743                                         InsetMathHull * hull = static_cast<InsetMathHull *>(im);
2744                                         hull->recordLocation(it);
2745                                 }
2746                         }
2747
2748                         if (iit->inset->lyxCode() != MATHMACRO_CODE)
2749                                 continue;
2750
2751                         // get macro data
2752                         MathMacroTemplate & macroTemplate =
2753                                 static_cast<MathMacroTemplate &>(*iit->inset);
2754                         MacroContext mc(owner_, it);
2755                         macroTemplate.updateToContext(mc);
2756
2757                         // valid?
2758                         bool valid = macroTemplate.validMacro();
2759                         // FIXME: Should be fixNameAndCheckIfValid() in fact,
2760                         // then the BufferView's cursor will be invalid in
2761                         // some cases which leads to crashes.
2762                         if (!valid)
2763                                 continue;
2764
2765                         // register macro
2766                         // FIXME (Abdel), I don't understandt why we pass 'it' here
2767                         // instead of 'macroTemplate' defined above... is this correct?
2768                         macros[macroTemplate.name()][it] =
2769                                 Impl::ScopeMacro(scope, MacroData(const_cast<Buffer *>(owner_), it));
2770                 }
2771
2772                 // next paragraph
2773                 it.pit()++;
2774                 it.pos() = 0;
2775         }
2776 }
2777
2778
2779 void Buffer::updateMacros() const
2780 {
2781         if (d->macro_lock)
2782                 return;
2783
2784         LYXERR(Debug::MACROS, "updateMacro of " << d->filename.onlyFileName());
2785
2786         // start with empty table
2787         d->macros.clear();
2788         d->children_positions.clear();
2789         d->position_to_children.clear();
2790
2791         // Iterate over buffer, starting with first paragraph
2792         // The scope must be bigger than any lookup DocIterator
2793         // later. For the global lookup, lastpit+1 is used, hence
2794         // we use lastpit+2 here.
2795         DocIterator it = par_iterator_begin();
2796         DocIterator outerScope = it;
2797         outerScope.pit() = outerScope.lastpit() + 2;
2798         d->updateMacros(it, outerScope);
2799 }
2800
2801
2802 void Buffer::getUsedBranches(std::list<docstring> & result, bool const from_master) const
2803 {
2804         InsetIterator it  = inset_iterator_begin(inset());
2805         InsetIterator const end = inset_iterator_end(inset());
2806         for (; it != end; ++it) {
2807                 if (it->lyxCode() == BRANCH_CODE) {
2808                         InsetBranch & br = static_cast<InsetBranch &>(*it);
2809                         docstring const name = br.branch();
2810                         if (!from_master && !params().branchlist().find(name))
2811                                 result.push_back(name);
2812                         else if (from_master && !masterBuffer()->params().branchlist().find(name))
2813                                 result.push_back(name);
2814                         continue;
2815                 }
2816                 if (it->lyxCode() == INCLUDE_CODE) {
2817                         // get buffer of external file
2818                         InsetInclude const & ins =
2819                                 static_cast<InsetInclude const &>(*it);
2820                         Buffer * child = ins.getChildBuffer();
2821                         if (!child)
2822                                 continue;
2823                         child->getUsedBranches(result, true);
2824                 }
2825         }
2826         // remove duplicates
2827         result.unique();
2828 }
2829
2830
2831 void Buffer::updateMacroInstances() const
2832 {
2833         LYXERR(Debug::MACROS, "updateMacroInstances for "
2834                 << d->filename.onlyFileName());
2835         DocIterator it = doc_iterator_begin(this);
2836         it.forwardInset();
2837         DocIterator const end = doc_iterator_end(this);
2838         for (; it != end; it.forwardInset()) {
2839                 // look for MathData cells in InsetMathNest insets
2840                 InsetMath * minset = it.nextInset()->asInsetMath();
2841                 if (!minset)
2842                         continue;
2843
2844                 // update macro in all cells of the InsetMathNest
2845                 DocIterator::idx_type n = minset->nargs();
2846                 MacroContext mc = MacroContext(this, it);
2847                 for (DocIterator::idx_type i = 0; i < n; ++i) {
2848                         MathData & data = minset->cell(i);
2849                         data.updateMacros(0, mc);
2850                 }
2851         }
2852 }
2853
2854
2855 void Buffer::listMacroNames(MacroNameSet & macros) const
2856 {
2857         if (d->macro_lock)
2858                 return;
2859
2860         d->macro_lock = true;
2861
2862         // loop over macro names
2863         Impl::NamePositionScopeMacroMap::iterator nameIt = d->macros.begin();
2864         Impl::NamePositionScopeMacroMap::iterator nameEnd = d->macros.end();
2865         for (; nameIt != nameEnd; ++nameIt)
2866                 macros.insert(nameIt->first);
2867
2868         // loop over children
2869         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
2870         Impl::BufferPositionMap::iterator end = d->children_positions.end();
2871         for (; it != end; ++it)
2872                 it->first->listMacroNames(macros);
2873
2874         // call parent
2875         Buffer const * const pbuf = d->parent();
2876         if (pbuf)
2877                 pbuf->listMacroNames(macros);
2878
2879         d->macro_lock = false;
2880 }
2881
2882
2883 void Buffer::listParentMacros(MacroSet & macros, LaTeXFeatures & features) const
2884 {
2885         Buffer const * const pbuf = d->parent();
2886         if (!pbuf)
2887                 return;
2888
2889         MacroNameSet names;
2890         pbuf->listMacroNames(names);
2891
2892         // resolve macros
2893         MacroNameSet::iterator it = names.begin();
2894         MacroNameSet::iterator end = names.end();
2895         for (; it != end; ++it) {
2896                 // defined?
2897                 MacroData const * data =
2898                 pbuf->getMacro(*it, *this, false);
2899                 if (data) {
2900                         macros.insert(data);
2901
2902                         // we cannot access the original MathMacroTemplate anymore
2903                         // here to calls validate method. So we do its work here manually.
2904                         // FIXME: somehow make the template accessible here.
2905                         if (data->optionals() > 0)
2906                                 features.require("xargs");
2907                 }
2908         }
2909 }
2910
2911
2912 Buffer::References & Buffer::references(docstring const & label)
2913 {
2914         if (d->parent())
2915                 return const_cast<Buffer *>(masterBuffer())->references(label);
2916
2917         RefCache::iterator it = d->ref_cache_.find(label);
2918         if (it != d->ref_cache_.end())
2919                 return it->second.second;
2920
2921         static InsetLabel const * dummy_il = 0;
2922         static References const dummy_refs;
2923         it = d->ref_cache_.insert(
2924                 make_pair(label, make_pair(dummy_il, dummy_refs))).first;
2925         return it->second.second;
2926 }
2927
2928
2929 Buffer::References const & Buffer::references(docstring const & label) const
2930 {
2931         return const_cast<Buffer *>(this)->references(label);
2932 }
2933
2934
2935 void Buffer::setInsetLabel(docstring const & label, InsetLabel const * il)
2936 {
2937         masterBuffer()->d->ref_cache_[label].first = il;
2938 }
2939
2940
2941 InsetLabel const * Buffer::insetLabel(docstring const & label) const
2942 {
2943         return masterBuffer()->d->ref_cache_[label].first;
2944 }
2945
2946
2947 void Buffer::clearReferenceCache() const
2948 {
2949         if (!d->parent())
2950                 d->ref_cache_.clear();
2951 }
2952
2953
2954 void Buffer::changeRefsIfUnique(docstring const & from, docstring const & to,
2955         InsetCode code)
2956 {
2957         //FIXME: This does not work for child documents yet.
2958         LASSERT(code == CITE_CODE, /**/);
2959         // Check if the label 'from' appears more than once
2960         vector<docstring> labels;
2961         string paramName;
2962         checkBibInfoCache();
2963         BiblioInfo const & keys = masterBibInfo();
2964         BiblioInfo::const_iterator bit  = keys.begin();
2965         BiblioInfo::const_iterator bend = keys.end();
2966
2967         for (; bit != bend; ++bit)
2968                 // FIXME UNICODE
2969                 labels.push_back(bit->first);
2970         paramName = "key";
2971
2972         if (count(labels.begin(), labels.end(), from) > 1)
2973                 return;
2974
2975         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
2976                 if (it->lyxCode() == code) {
2977                         InsetCommand & inset = static_cast<InsetCommand &>(*it);
2978                         docstring const oldValue = inset.getParam(paramName);
2979                         if (oldValue == from)
2980                                 inset.setParam(paramName, to);
2981                 }
2982         }
2983 }
2984
2985
2986 void Buffer::getSourceCode(odocstream & os, pit_type par_begin,
2987         pit_type par_end, bool full_source) const
2988 {
2989         OutputParams runparams(&params().encoding());
2990         runparams.nice = true;
2991         runparams.flavor = params().useXetex ?
2992                 OutputParams::XETEX : OutputParams::LATEX;
2993         runparams.linelen = lyxrc.plaintext_linelen;
2994         // No side effect of file copying and image conversion
2995         runparams.dryrun = true;
2996
2997         if (full_source) {
2998                 os << "% " << _("Preview source code") << "\n\n";
2999                 d->texrow.reset();
3000                 d->texrow.newline();
3001                 d->texrow.newline();
3002                 if (isDocBook())
3003                         writeDocBookSource(os, absFileName(), runparams, false);
3004                 else
3005                         // latex or literate
3006                         writeLaTeXSource(os, string(), runparams, true, true);
3007         } else {
3008                 runparams.par_begin = par_begin;
3009                 runparams.par_end = par_end;
3010                 if (par_begin + 1 == par_end) {
3011                         os << "% "
3012                            << bformat(_("Preview source code for paragraph %1$d"), par_begin)
3013                            << "\n\n";
3014                 } else {
3015                         os << "% "
3016                            << bformat(_("Preview source code from paragraph %1$s to %2$s"),
3017                                         convert<docstring>(par_begin),
3018                                         convert<docstring>(par_end - 1))
3019                            << "\n\n";
3020                 }
3021                 TexRow texrow;
3022                 texrow.reset();
3023                 texrow.newline();
3024                 texrow.newline();
3025                 // output paragraphs
3026                 if (isDocBook())
3027                         docbookParagraphs(text(), *this, os, runparams);
3028                 else
3029                         // latex or literate
3030                         latexParagraphs(*this, text(), os, texrow, runparams);
3031         }
3032 }
3033
3034
3035 ErrorList & Buffer::errorList(string const & type) const
3036 {
3037         static ErrorList emptyErrorList;
3038         map<string, ErrorList>::iterator it = d->errorLists.find(type);
3039         if (it == d->errorLists.end())
3040                 return emptyErrorList;
3041
3042         return it->second;
3043 }
3044
3045
3046 void Buffer::updateTocItem(std::string const & type,
3047         DocIterator const & dit) const
3048 {
3049         if (d->gui_)
3050                 d->gui_->updateTocItem(type, dit);
3051 }
3052
3053
3054 void Buffer::structureChanged() const
3055 {
3056         if (d->gui_)
3057                 d->gui_->structureChanged();
3058 }
3059
3060
3061 void Buffer::errors(string const & err, bool from_master) const
3062 {
3063         if (d->gui_)
3064                 d->gui_->errors(err, from_master);
3065 }
3066
3067
3068 void Buffer::message(docstring const & msg) const
3069 {
3070         if (d->gui_)
3071                 d->gui_->message(msg);
3072 }
3073
3074
3075 void Buffer::setBusy(bool on) const
3076 {
3077         if (d->gui_)
3078                 d->gui_->setBusy(on);
3079 }
3080
3081
3082 void Buffer::updateTitles() const
3083 {
3084         if (d->wa_)
3085                 d->wa_->updateTitles();
3086 }
3087
3088
3089 void Buffer::resetAutosaveTimers() const
3090 {
3091         if (d->gui_)
3092                 d->gui_->resetAutosaveTimers();
3093 }
3094
3095
3096 bool Buffer::hasGuiDelegate() const
3097 {
3098         return d->gui_;
3099 }
3100
3101
3102 void Buffer::setGuiDelegate(frontend::GuiBufferDelegate * gui)
3103 {
3104         d->gui_ = gui;
3105 }
3106
3107
3108
3109 namespace {
3110
3111 class AutoSaveBuffer : public ForkedProcess {
3112 public:
3113         ///
3114         AutoSaveBuffer(Buffer const & buffer, FileName const & fname)
3115                 : buffer_(buffer), fname_(fname) {}
3116         ///
3117         virtual shared_ptr<ForkedProcess> clone() const
3118         {
3119                 return shared_ptr<ForkedProcess>(new AutoSaveBuffer(*this));
3120         }
3121         ///
3122         int start()
3123         {
3124                 command_ = to_utf8(bformat(_("Auto-saving %1$s"),
3125                                                  from_utf8(fname_.absFileName())));
3126                 return run(DontWait);
3127         }
3128 private:
3129         ///
3130         virtual int generateChild();
3131         ///
3132         Buffer const & buffer_;
3133         FileName fname_;
3134 };
3135
3136
3137 int AutoSaveBuffer::generateChild()
3138 {
3139 #if defined(__APPLE__)
3140         /* FIXME fork() is not usable for autosave on Mac OS X 10.6 (snow leopard)
3141          *   We should use something else like threads.
3142          *
3143          * Since I do not know how to determine at run time what is the OS X
3144          * version, I just disable forking altogether for now (JMarc)
3145          */
3146         pid_t const pid = -1;
3147 #else
3148         // tmp_ret will be located (usually) in /tmp
3149         // will that be a problem?
3150         // Note that this calls ForkedCalls::fork(), so it's
3151         // ok cross-platform.
3152         pid_t const pid = fork();
3153         // If you want to debug the autosave
3154         // you should set pid to -1, and comment out the fork.
3155         if (pid != 0 && pid != -1)
3156                 return pid;
3157 #endif
3158
3159         // pid = -1 signifies that lyx was unable
3160         // to fork. But we will do the save
3161         // anyway.
3162         bool failed = false;
3163         FileName const tmp_ret = FileName::tempName("lyxauto");
3164         if (!tmp_ret.empty()) {
3165                 buffer_.writeFile(tmp_ret);
3166                 // assume successful write of tmp_ret
3167                 if (!tmp_ret.moveTo(fname_))
3168                         failed = true;
3169         } else
3170                 failed = true;
3171
3172         if (failed) {
3173                 // failed to write/rename tmp_ret so try writing direct
3174                 if (!buffer_.writeFile(fname_)) {
3175                         // It is dangerous to do this in the child,
3176                         // but safe in the parent, so...
3177                         if (pid == -1) // emit message signal.
3178                                 buffer_.message(_("Autosave failed!"));
3179                 }
3180         }
3181
3182         if (pid == 0) // we are the child so...
3183                 _exit(0);
3184
3185         return pid;
3186 }
3187
3188 } // namespace anon
3189
3190
3191 FileName Buffer::getAutosaveFileName() const
3192 {
3193         // if the document is unnamed try to save in the backup dir, else
3194         // in the default document path, and as a last try in the filePath,
3195         // which will most often be the temporary directory
3196         string fpath;
3197         if (isUnnamed())
3198                 fpath = lyxrc.backupdir_path.empty() ? lyxrc.document_path
3199                         : lyxrc.backupdir_path;
3200         if (!isUnnamed() || fpath.empty() || !FileName(fpath).exists())
3201                 fpath = filePath();
3202
3203         string const fname = "#" + d->filename.onlyFileName() + "#";
3204         return makeAbsPath(fname, fpath);
3205 }
3206
3207
3208 void Buffer::removeAutosaveFile() const
3209 {
3210         FileName const f = getAutosaveFileName();
3211         if (f.exists())
3212                 f.removeFile();
3213 }
3214
3215
3216 void Buffer::moveAutosaveFile(support::FileName const & oldauto) const
3217 {
3218         FileName const newauto = getAutosaveFileName();
3219         oldauto.refresh();
3220         if (newauto != oldauto && oldauto.exists())
3221                 if (!oldauto.moveTo(newauto))
3222                         LYXERR0("Unable to move autosave file `" << oldauto << "'!");
3223 }
3224
3225
3226 // Perfect target for a thread...
3227 void Buffer::autoSave() const
3228 {
3229         if (d->bak_clean || isReadonly()) {
3230                 // We don't save now, but we'll try again later
3231                 resetAutosaveTimers();
3232                 return;
3233         }
3234
3235         // emit message signal.
3236         message(_("Autosaving current document..."));
3237         AutoSaveBuffer autosave(*this, getAutosaveFileName());
3238         autosave.start();
3239
3240         d->bak_clean = true;
3241
3242         resetAutosaveTimers();
3243 }
3244
3245
3246 string Buffer::bufferFormat() const
3247 {
3248         string format = params().documentClass().outputFormat();
3249         if (format == "latex") {
3250                 if (params().useXetex)
3251                         return "xetex";
3252                 if (params().encoding().package() == Encoding::japanese)
3253                         return "platex";
3254         }
3255         return format;
3256 }
3257
3258
3259 string Buffer::getDefaultOutputFormat() const
3260 {
3261         if (!params().defaultOutputFormat.empty()
3262             && params().defaultOutputFormat != "default")
3263                 return params().defaultOutputFormat;
3264         typedef vector<Format const *> Formats;
3265         Formats formats = exportableFormats(true);
3266         if (isDocBook()
3267             || isLiterate()
3268             || params().useXetex
3269             || params().encoding().package() == Encoding::japanese) {
3270                 if (formats.empty())
3271                         return string();
3272                 // return the first we find
3273                 return formats.front()->name();
3274         }
3275         return lyxrc.default_view_format;
3276 }
3277
3278
3279 namespace {
3280         // helper class, to guarantee this gets reset properly
3281         class MarkAsExporting   {
3282         public:
3283                 MarkAsExporting(Buffer const * buf) : buf_(buf)
3284                 {
3285                         LASSERT(buf_, /* */);
3286                         buf_->setExportStatus(true);
3287                 }
3288                 ~MarkAsExporting()
3289                 {
3290                         buf_->setExportStatus(false);
3291                 }
3292         private:
3293                 Buffer const * const buf_;
3294         };
3295 }
3296
3297
3298 void Buffer::setExportStatus(bool e) const
3299 {
3300         d->doing_export = e;
3301 }
3302
3303
3304 bool Buffer::isExporting() const
3305 {
3306         return d->doing_export;
3307 }
3308
3309
3310 bool Buffer::doExport(string const & format, bool put_in_tempdir,
3311         bool includeall, string & result_file) const
3312 {
3313         MarkAsExporting exporting(this);
3314         string backend_format;
3315         OutputParams runparams(&params().encoding());
3316         runparams.flavor = OutputParams::LATEX;
3317         runparams.linelen = lyxrc.plaintext_linelen;
3318         runparams.includeall = includeall;
3319         vector<string> backs = backends();
3320         if (find(backs.begin(), backs.end(), format) == backs.end()) {
3321                 // Get shortest path to format
3322                 Graph::EdgePath path;
3323                 for (vector<string>::const_iterator it = backs.begin();
3324                      it != backs.end(); ++it) {
3325                         Graph::EdgePath p = theConverters().getPath(*it, format);
3326                         if (!p.empty() && (path.empty() || p.size() < path.size())) {
3327                                 backend_format = *it;
3328                                 path = p;
3329                         }
3330                 }
3331                 if (path.empty()) {
3332                         if (!put_in_tempdir) {
3333                                 // Only show this alert if this is an export to a non-temporary
3334                                 // file (not for previewing).
3335                                 Alert::error(_("Couldn't export file"), bformat(
3336                                         _("No information for exporting the format %1$s."),
3337                                         formats.prettyName(format)));
3338                         }
3339                         return false;
3340                 }
3341                 runparams.flavor = theConverters().getFlavor(path);
3342
3343         } else {
3344                 backend_format = format;
3345                 // FIXME: Don't hardcode format names here, but use a flag
3346                 if (backend_format == "pdflatex")
3347                         runparams.flavor = OutputParams::PDFLATEX;
3348         }
3349
3350         string filename = latexName(false);
3351         filename = addName(temppath(), filename);
3352         filename = changeExtension(filename,
3353                                    formats.extension(backend_format));
3354
3355         // fix macros
3356         updateMacroInstances();
3357
3358         // Plain text backend
3359         if (backend_format == "text") {
3360                 runparams.flavor = OutputParams::TEXT;
3361                 writePlaintextFile(*this, FileName(filename), runparams);
3362         }
3363         // HTML backend
3364         else if (backend_format == "xhtml") {
3365                 runparams.flavor = OutputParams::HTML;
3366                 switch (params().html_math_output) {
3367                 case BufferParams::MathML:
3368                         runparams.math_flavor = OutputParams::MathAsMathML;
3369                         break;
3370                 case BufferParams::HTML:
3371                         runparams.math_flavor = OutputParams::MathAsHTML;
3372                         break;
3373                 case BufferParams::Images:
3374                         runparams.math_flavor = OutputParams::MathAsImages;
3375                         break;
3376                 case BufferParams::LaTeX:
3377                         runparams.math_flavor = OutputParams::MathAsLaTeX;
3378                         break;
3379                 }
3380
3381                 makeLyXHTMLFile(FileName(filename), runparams);
3382         }       else if (backend_format == "lyx")
3383                 writeFile(FileName(filename));
3384         // Docbook backend
3385         else if (isDocBook()) {
3386                 runparams.nice = !put_in_tempdir;
3387                 makeDocBookFile(FileName(filename), runparams);
3388         }
3389         // LaTeX backend
3390         else if (backend_format == format) {
3391                 runparams.nice = true;
3392                 if (!makeLaTeXFile(FileName(filename), string(), runparams))
3393                         return false;
3394         } else if (!lyxrc.tex_allows_spaces
3395                    && contains(filePath(), ' ')) {
3396                 Alert::error(_("File name error"),
3397                            _("The directory path to the document cannot contain spaces."));
3398                 return false;
3399         } else {
3400                 runparams.nice = false;
3401                 if (!makeLaTeXFile(FileName(filename), filePath(), runparams))
3402                         return false;
3403         }
3404
3405         string const error_type = (format == "program")
3406                 ? "Build" : bufferFormat();
3407         ErrorList & error_list = d->errorLists[error_type];
3408         string const ext = formats.extension(format);
3409         FileName const tmp_result_file(changeExtension(filename, ext));
3410         bool const success = theConverters().convert(this, FileName(filename),
3411                 tmp_result_file, FileName(absFileName()), backend_format, format,
3412                 error_list);
3413
3414         // Emit the signal to show the error list or copy it back to the
3415         // cloned Buffer so that it cab be emitted afterwards.
3416         if (format != backend_format) {
3417                 if (d->cloned_buffer_) {
3418                         d->cloned_buffer_->d->errorLists[error_type] =
3419                                 d->errorLists[error_type];
3420                 } else
3421                         errors(error_type);
3422                 // also to the children, in case of master-buffer-view
3423                 ListOfBuffers clist = getChildren();
3424                 ListOfBuffers::const_iterator cit = clist.begin();
3425                 ListOfBuffers::const_iterator const cen = clist.end();
3426                 for (; cit != cen; ++cit) {
3427                         if (d->cloned_buffer_) {
3428                                 (*cit)->d->cloned_buffer_->d->errorLists[error_type] =
3429                                         (*cit)->d->errorLists[error_type];
3430                         } else
3431                                 (*cit)->errors(error_type, true);
3432                 }
3433         }
3434
3435         if (d->cloned_buffer_) {
3436                 // Enable reverse dvi or pdf to work by copying back the texrow
3437                 // object to the cloned buffer.
3438                 // FIXME: There is a possibility of concurrent access to texrow
3439                 // here from the main GUI thread that should be securized.
3440                 d->cloned_buffer_->d->texrow = d->texrow;
3441                 string const error_type = bufferFormat();
3442                 d->cloned_buffer_->d->errorLists[error_type] = d->errorLists[error_type];
3443         }
3444
3445         if (!success)
3446                 return false;
3447
3448         if (put_in_tempdir) {
3449                 result_file = tmp_result_file.absFileName();
3450                 return true;
3451         }
3452
3453         result_file = changeExtension(d->exportFileName().absFileName(), ext);
3454         // We need to copy referenced files (e. g. included graphics
3455         // if format == "dvi") to the result dir.
3456         vector<ExportedFile> const files =
3457                 runparams.exportdata->externalFiles(format);
3458         string const dest = onlyPath(result_file);
3459         bool use_force = use_gui ? lyxrc.export_overwrite == ALL_FILES
3460                                  : force_overwrite == ALL_FILES;
3461         CopyStatus status = use_force ? FORCE : SUCCESS;
3462
3463         vector<ExportedFile>::const_iterator it = files.begin();
3464         vector<ExportedFile>::const_iterator const en = files.end();
3465         for (; it != en && status != CANCEL; ++it) {
3466                 string const fmt = formats.getFormatFromFile(it->sourceName);
3467                 status = copyFile(fmt, it->sourceName,
3468                         makeAbsPath(it->exportName, dest),
3469                         it->exportName, status == FORCE);
3470         }
3471
3472         if (status == CANCEL) {
3473                 message(_("Document export cancelled."));
3474         } else if (tmp_result_file.exists()) {
3475                 // Finally copy the main file
3476                 use_force = use_gui ? lyxrc.export_overwrite != NO_FILES
3477                                     : force_overwrite != NO_FILES;
3478                 if (status == SUCCESS && use_force)
3479                         status = FORCE;
3480                 status = copyFile(format, tmp_result_file,
3481                         FileName(result_file), result_file,
3482                         status == FORCE);
3483                 message(bformat(_("Document exported as %1$s "
3484                         "to file `%2$s'"),
3485                         formats.prettyName(format),
3486                         makeDisplayPath(result_file)));
3487         } else {
3488                 // This must be a dummy converter like fax (bug 1888)
3489                 message(bformat(_("Document exported as %1$s"),
3490                         formats.prettyName(format)));
3491         }
3492
3493         return true;
3494 }
3495
3496
3497 bool Buffer::doExport(string const & format, bool put_in_tempdir,
3498                       bool includeall) const
3499 {
3500         string result_file;
3501         // (1) export with all included children (omit \includeonly)
3502         if (includeall && !doExport(format, put_in_tempdir, true, result_file))
3503                 return false;
3504         // (2) export with included children only
3505         return doExport(format, put_in_tempdir, false, result_file);
3506 }
3507
3508
3509 bool Buffer::preview(string const & format, bool includeall) const
3510 {
3511         MarkAsExporting exporting(this);
3512         string result_file;
3513         // (1) export with all included children (omit \includeonly)
3514         if (includeall && !doExport(format, true, true))
3515                 return false;
3516         // (2) export with included children only
3517         if (!doExport(format, true, false, result_file))
3518                 return false;
3519         return formats.view(*this, FileName(result_file), format);
3520 }
3521
3522
3523 bool Buffer::isExportable(string const & format) const
3524 {
3525         vector<string> backs = backends();
3526         for (vector<string>::const_iterator it = backs.begin();
3527              it != backs.end(); ++it)
3528                 if (theConverters().isReachable(*it, format))
3529                         return true;
3530         return false;
3531 }
3532
3533
3534 vector<Format const *> Buffer::exportableFormats(bool only_viewable) const
3535 {
3536         vector<string> const backs = backends();
3537         vector<Format const *> result =
3538                 theConverters().getReachable(backs[0], only_viewable, true);
3539         for (vector<string>::const_iterator it = backs.begin() + 1;
3540              it != backs.end(); ++it) {
3541                 vector<Format const *>  r =
3542                         theConverters().getReachable(*it, only_viewable, false);
3543                 result.insert(result.end(), r.begin(), r.end());
3544         }
3545         return result;
3546 }
3547
3548
3549 vector<string> Buffer::backends() const
3550 {
3551         vector<string> v;
3552         v.push_back(bufferFormat());
3553         // FIXME: Don't hardcode format names here, but use a flag
3554         if (v.back() == "latex")
3555                 v.push_back("pdflatex");
3556         v.push_back("xhtml");
3557         v.push_back("text");
3558         v.push_back("lyx");
3559         return v;
3560 }
3561
3562
3563 bool Buffer::readFileHelper(FileName const & s)
3564 {
3565         // File information about normal file
3566         if (!s.exists()) {
3567                 docstring const file = makeDisplayPath(s.absFileName(), 50);
3568                 docstring text = bformat(_("The specified document\n%1$s"
3569                                                      "\ncould not be read."), file);
3570                 Alert::error(_("Could not read document"), text);
3571                 return false;
3572         }
3573
3574         // Check if emergency save file exists and is newer.
3575         FileName const e(s.absFileName() + ".emergency");
3576
3577         if (e.exists() && s.exists() && e.lastModified() > s.lastModified()) {
3578                 docstring const file = makeDisplayPath(s.absFileName(), 20);
3579                 docstring const text =
3580                         bformat(_("An emergency save of the document "
3581                                   "%1$s exists.\n\n"
3582                                                "Recover emergency save?"), file);
3583                 switch (Alert::prompt(_("Load emergency save?"), text, 0, 2,
3584                                       _("&Recover"),  _("&Load Original"),
3585                                       _("&Cancel")))
3586                 {
3587                 case 0: {
3588                         // the file is not saved if we load the emergency file.
3589                         markDirty();
3590                         docstring str;
3591                         bool res;
3592
3593                         if ((res = readFile(e)) == success)
3594                                 str = _("Document was successfully recovered.");
3595                         else
3596                                 str = _("Document was NOT successfully recovered.");
3597                         str += "\n\n" + bformat(_("Remove emergency file now?\n(%1$s)"),
3598                                                 makeDisplayPath(e.absFileName()));
3599
3600                         if (!Alert::prompt(_("Delete emergency file?"), str, 1, 1,
3601                                         _("&Remove"), _("&Keep it"))) {
3602                                 e.removeFile();
3603                                 if (res == success)
3604                                         Alert::warning(_("Emergency file deleted"),
3605                                                 _("Do not forget to save your file now!"), true);
3606                                 }
3607                         return res;
3608                 }
3609                 case 1:
3610                         if (!Alert::prompt(_("Delete emergency file?"),
3611                                         _("Remove emergency file now?"), 1, 1,
3612                                         _("&Remove"), _("&Keep it")))
3613                                 e.removeFile();
3614                         break;
3615                 default:
3616                         return false;
3617                 }
3618         }
3619
3620         // Now check if autosave file is newer.
3621         FileName const a(onlyPath(s.absFileName()) + '#' + onlyFileName(s.absFileName()) + '#');
3622
3623         if (a.exists() && s.exists() && a.lastModified() > s.lastModified()) {
3624                 docstring const file = makeDisplayPath(s.absFileName(), 20);
3625                 docstring const text =
3626                         bformat(_("The backup of the document "
3627                                   "%1$s is newer.\n\nLoad the "
3628                                                "backup instead?"), file);
3629                 switch (Alert::prompt(_("Load backup?"), text, 0, 2,
3630                                       _("&Load backup"), _("Load &original"),
3631                                       _("&Cancel") ))
3632                 {
3633                 case 0:
3634                         // the file is not saved if we load the autosave file.
3635                         markDirty();
3636                         return readFile(a);
3637                 case 1:
3638                         // Here we delete the autosave
3639                         a.removeFile();
3640                         break;
3641                 default:
3642                         return false;
3643                 }
3644         }
3645         return readFile(s);
3646 }
3647
3648
3649 bool Buffer::loadLyXFile(FileName const & s)
3650 {
3651         // If the file is not readable, we try to
3652         // retrieve the file from version control.
3653         if (!s.isReadableFile()
3654                   && !LyXVC::file_not_found_hook(s))
3655                 return false;
3656
3657         if (s.isReadableFile()){
3658                 // InsetInfo needs to know if file is under VCS
3659                 lyxvc().file_found_hook(s);
3660                 if (readFileHelper(s)) {
3661                         d->read_only = !s.isWritable();
3662                         return true;
3663                 }
3664         }
3665         return false;
3666 }
3667
3668
3669 void Buffer::bufferErrors(TeXErrors const & terr, ErrorList & errorList) const
3670 {
3671         TeXErrors::Errors::const_iterator cit = terr.begin();
3672         TeXErrors::Errors::const_iterator end = terr.end();
3673
3674         for (; cit != end; ++cit) {
3675                 int id_start = -1;
3676                 int pos_start = -1;
3677                 int errorRow = cit->error_in_line;
3678                 bool found = d->texrow.getIdFromRow(errorRow, id_start,
3679                                                        pos_start);
3680                 int id_end = -1;
3681                 int pos_end = -1;
3682                 do {
3683                         ++errorRow;
3684                         found = d->texrow.getIdFromRow(errorRow, id_end, pos_end);
3685                 } while (found && id_start == id_end && pos_start == pos_end);
3686
3687                 errorList.push_back(ErrorItem(cit->error_desc,
3688                         cit->error_text, id_start, pos_start, pos_end));
3689         }
3690 }
3691
3692
3693 void Buffer::setBuffersForInsets() const
3694 {
3695         inset().setBuffer(const_cast<Buffer &>(*this));
3696 }
3697
3698
3699 void Buffer::updateBuffer(UpdateScope scope, UpdateType utype) const
3700 {
3701         // Use the master text class also for child documents
3702         Buffer const * const master = masterBuffer();
3703         DocumentClass const & textclass = master->params().documentClass();
3704
3705         // do this only if we are the top-level Buffer
3706         if (master == this)
3707                 checkBibInfoCache();
3708
3709         // keep the buffers to be children in this set. If the call from the
3710         // master comes back we can see which of them were actually seen (i.e.
3711         // via an InsetInclude). The remaining ones in the set need still be updated.
3712         static std::set<Buffer const *> bufToUpdate;
3713         if (scope == UpdateMaster) {
3714                 // If this is a child document start with the master
3715                 if (master != this) {
3716                         bufToUpdate.insert(this);
3717                         master->updateBuffer(UpdateMaster, utype);
3718                         // Do this here in case the master has no gui associated with it. Then,
3719                         // the TocModel is not updated and TocModel::toc_ is invalid (bug 5699).
3720                         if (!master->d->gui_)
3721                                 structureChanged();
3722
3723                         // was buf referenced from the master (i.e. not in bufToUpdate anymore)?
3724                         if (bufToUpdate.find(this) == bufToUpdate.end())
3725                                 return;
3726                 }
3727
3728                 // start over the counters in the master
3729                 textclass.counters().reset();
3730         }
3731
3732         // update will be done below for this buffer
3733         bufToUpdate.erase(this);
3734
3735         // update all caches
3736         clearReferenceCache();
3737         updateMacros();
3738
3739         Buffer & cbuf = const_cast<Buffer &>(*this);
3740
3741         LASSERT(!text().paragraphs().empty(), /**/);
3742
3743         // do the real work
3744         ParIterator parit = cbuf.par_iterator_begin();
3745         updateBuffer(parit, utype);
3746
3747         if (master != this)
3748                 // TocBackend update will be done later.
3749                 return;
3750
3751         cbuf.tocBackend().update();
3752         if (scope == UpdateMaster)
3753                 cbuf.structureChanged();
3754 }
3755
3756
3757 static depth_type getDepth(DocIterator const & it)
3758 {
3759         depth_type depth = 0;
3760         for (size_t i = 0 ; i < it.depth() ; ++i)
3761                 if (!it[i].inset().inMathed())
3762                         depth += it[i].paragraph().getDepth() + 1;
3763         // remove 1 since the outer inset does not count
3764         return depth - 1;
3765 }
3766
3767 static depth_type getItemDepth(ParIterator const & it)
3768 {
3769         Paragraph const & par = *it;
3770         LabelType const labeltype = par.layout().labeltype;
3771
3772         if (labeltype != LABEL_ENUMERATE && labeltype != LABEL_ITEMIZE)
3773                 return 0;
3774
3775         // this will hold the lowest depth encountered up to now.
3776         depth_type min_depth = getDepth(it);
3777         ParIterator prev_it = it;
3778         while (true) {
3779                 if (prev_it.pit())
3780                         --prev_it.top().pit();
3781                 else {
3782                         // start of nested inset: go to outer par
3783                         prev_it.pop_back();
3784                         if (prev_it.empty()) {
3785                                 // start of document: nothing to do
3786                                 return 0;
3787                         }
3788                 }
3789
3790                 // We search for the first paragraph with same label
3791                 // that is not more deeply nested.
3792                 Paragraph & prev_par = *prev_it;
3793                 depth_type const prev_depth = getDepth(prev_it);
3794                 if (labeltype == prev_par.layout().labeltype) {
3795                         if (prev_depth < min_depth)
3796                                 return prev_par.itemdepth + 1;
3797                         if (prev_depth == min_depth)
3798                                 return prev_par.itemdepth;
3799                 }
3800                 min_depth = min(min_depth, prev_depth);
3801                 // small optimization: if we are at depth 0, we won't
3802                 // find anything else
3803                 if (prev_depth == 0)
3804                         return 0;
3805         }
3806 }
3807
3808
3809 static bool needEnumCounterReset(ParIterator const & it)
3810 {
3811         Paragraph const & par = *it;
3812         LASSERT(par.layout().labeltype == LABEL_ENUMERATE, /**/);
3813         depth_type const cur_depth = par.getDepth();
3814         ParIterator prev_it = it;
3815         while (prev_it.pit()) {
3816                 --prev_it.top().pit();
3817                 Paragraph const & prev_par = *prev_it;
3818                 if (prev_par.getDepth() <= cur_depth)
3819                         return  prev_par.layout().labeltype != LABEL_ENUMERATE;
3820         }
3821         // start of nested inset: reset
3822         return true;
3823 }
3824
3825
3826 // set the label of a paragraph. This includes the counters.
3827 void Buffer::Impl::setLabel(ParIterator & it, UpdateType utype) const
3828 {
3829         BufferParams const & bp = owner_->masterBuffer()->params();
3830         DocumentClass const & textclass = bp.documentClass();
3831         Paragraph & par = it.paragraph();
3832         Layout const & layout = par.layout();
3833         Counters & counters = textclass.counters();
3834
3835         if (par.params().startOfAppendix()) {
3836                 // FIXME: only the counter corresponding to toplevel
3837                 // sectioning should be reset
3838                 counters.reset();
3839                 counters.appendix(true);
3840         }
3841         par.params().appendix(counters.appendix());
3842
3843         // Compute the item depth of the paragraph
3844         par.itemdepth = getItemDepth(it);
3845
3846         if (layout.margintype == MARGIN_MANUAL
3847             || layout.latextype == LATEX_BIB_ENVIRONMENT) {
3848                 if (par.params().labelWidthString().empty())
3849                         par.params().labelWidthString(par.expandLabel(layout, bp));
3850         } else {
3851                 par.params().labelWidthString(docstring());
3852         }
3853
3854         switch(layout.labeltype) {
3855         case LABEL_COUNTER:
3856                 if (layout.toclevel <= bp.secnumdepth
3857                     && (layout.latextype != LATEX_ENVIRONMENT
3858                         || it.text()->isFirstInSequence(it.pit()))) {
3859                         counters.step(layout.counter, utype);
3860                         par.params().labelString(
3861                                 par.expandLabel(layout, bp));
3862                 } else
3863                         par.params().labelString(docstring());
3864                 break;
3865
3866         case LABEL_ITEMIZE: {
3867                 // At some point of time we should do something more
3868                 // clever here, like:
3869                 //   par.params().labelString(
3870                 //    bp.user_defined_bullet(par.itemdepth).getText());
3871                 // for now, use a simple hardcoded label
3872                 docstring itemlabel;
3873                 switch (par.itemdepth) {
3874                 case 0:
3875                         itemlabel = char_type(0x2022);
3876                         break;
3877                 case 1:
3878                         itemlabel = char_type(0x2013);
3879                         break;
3880                 case 2:
3881                         itemlabel = char_type(0x2217);
3882                         break;
3883                 case 3:
3884                         itemlabel = char_type(0x2219); // or 0x00b7
3885                         break;
3886                 }
3887                 par.params().labelString(itemlabel);
3888                 break;
3889         }
3890
3891         case LABEL_ENUMERATE: {
3892                 docstring enumcounter = layout.counter.empty() ? from_ascii("enum") : layout.counter;
3893
3894                 switch (par.itemdepth) {
3895                 case 2:
3896                         enumcounter += 'i';
3897                 case 1:
3898                         enumcounter += 'i';
3899                 case 0:
3900                         enumcounter += 'i';
3901                         break;
3902                 case 3:
3903                         enumcounter += "iv";
3904                         break;
3905                 default:
3906                         // not a valid enumdepth...
3907                         break;
3908                 }
3909
3910                 // Maybe we have to reset the enumeration counter.
3911                 if (needEnumCounterReset(it))
3912                         counters.reset(enumcounter);
3913                 counters.step(enumcounter, utype);
3914
3915                 string const & lang = par.getParLanguage(bp)->code();
3916                 par.params().labelString(counters.theCounter(enumcounter, lang));
3917
3918                 break;
3919         }
3920
3921         case LABEL_SENSITIVE: {
3922                 string const & type = counters.current_float();
3923                 docstring full_label;
3924                 if (type.empty())
3925                         full_label = owner_->B_("Senseless!!! ");
3926                 else {
3927                         docstring name = owner_->B_(textclass.floats().getType(type).name());
3928                         if (counters.hasCounter(from_utf8(type))) {
3929                                 string const & lang = par.getParLanguage(bp)->code();
3930                                 counters.step(from_utf8(type), utype);
3931                                 full_label = bformat(from_ascii("%1$s %2$s:"),
3932                                                      name,
3933                                                      counters.theCounter(from_utf8(type), lang));
3934                         } else
3935                                 full_label = bformat(from_ascii("%1$s #:"), name);
3936                 }
3937                 par.params().labelString(full_label);
3938                 break;
3939         }
3940
3941         case LABEL_NO_LABEL:
3942                 par.params().labelString(docstring());
3943                 break;
3944
3945         case LABEL_MANUAL:
3946         case LABEL_TOP_ENVIRONMENT:
3947         case LABEL_CENTERED_TOP_ENVIRONMENT:
3948         case LABEL_STATIC:
3949         case LABEL_BIBLIO:
3950                 par.params().labelString(par.expandLabel(layout, bp));
3951                 break;
3952         }
3953 }
3954
3955
3956 void Buffer::updateBuffer(ParIterator & parit, UpdateType utype) const
3957 {
3958         LASSERT(parit.pit() == 0, /**/);
3959
3960         // set the position of the text in the buffer to be able
3961         // to resolve macros in it. This has nothing to do with
3962         // labels, but by putting it here we avoid implementing
3963         // a whole bunch of traversal routines just for this call.
3964         parit.text()->setMacrocontextPosition(parit);
3965
3966         depth_type maxdepth = 0;
3967         pit_type const lastpit = parit.lastpit();
3968         for ( ; parit.pit() <= lastpit ; ++parit.pit()) {
3969                 // reduce depth if necessary
3970                 parit->params().depth(min(parit->params().depth(), maxdepth));
3971                 maxdepth = parit->getMaxDepthAfter();
3972
3973                 if (utype == OutputUpdate) {
3974                         // track the active counters
3975                         // we have to do this for the master buffer, since the local
3976                         // buffer isn't tracking anything.
3977                         masterBuffer()->params().documentClass().counters().
3978                                         setActiveLayout(parit->layout());
3979                 }
3980
3981                 // set the counter for this paragraph
3982                 d->setLabel(parit, utype);
3983
3984                 // now the insets
3985                 InsetList::const_iterator iit = parit->insetList().begin();
3986                 InsetList::const_iterator end = parit->insetList().end();
3987                 for (; iit != end; ++iit) {
3988                         parit.pos() = iit->pos;
3989                         iit->inset->updateBuffer(parit, utype);
3990                 }
3991         }
3992 }
3993
3994
3995 int Buffer::spellCheck(DocIterator & from, DocIterator & to,
3996         WordLangTuple & word_lang, docstring_list & suggestions) const
3997 {
3998         int progress = 0;
3999         WordLangTuple wl;
4000         suggestions.clear();
4001         word_lang = WordLangTuple();
4002         // OK, we start from here.
4003         DocIterator const end = doc_iterator_end(this);
4004         for (; from != end; from.forwardPos()) {
4005                 // We are only interested in text so remove the math CursorSlice.
4006                 while (from.inMathed()) {
4007                         from.pop_back();
4008                         from.pos()++;
4009                 }
4010                 // If from is at the end of the document (which is possible
4011                 // when leaving the mathed) LyX will crash later.
4012                 if (from == end)
4013                         break;
4014                 to = from;
4015                 from.paragraph().spellCheck();
4016                 SpellChecker::Result res = from.paragraph().spellCheck(from.pos(), to.pos(), wl, suggestions);
4017                 if (SpellChecker::misspelled(res)) {
4018                         word_lang = wl;
4019                         break;
4020                 }
4021
4022                 // Do not increase progress when from == to, otherwise the word
4023                 // count will be wrong.
4024                 if (from != to) {
4025                         from = to;
4026                         ++progress;
4027                 }
4028         }
4029         return progress;
4030 }
4031
4032
4033 bool Buffer::reload()
4034 {
4035         setBusy(true);
4036         // c.f. bug 6587
4037         removeAutosaveFile();
4038         // e.g., read-only status could have changed due to version control
4039         d->filename.refresh();
4040         docstring const disp_fn = makeDisplayPath(d->filename.absFileName());
4041
4042         bool const success = loadLyXFile(d->filename);
4043         if (success) {
4044                 updateBuffer();
4045                 changed(true);
4046                 updateTitles();
4047                 markClean();
4048                 message(bformat(_("Document %1$s reloaded."), disp_fn));
4049         } else {
4050                 message(bformat(_("Could not reload document %1$s."), disp_fn));
4051         }
4052         setBusy(false);
4053         thePreviews().removeLoader(*this);
4054         if (graphics::Previews::status() != LyXRC::PREVIEW_OFF)
4055                 thePreviews().generateBufferPreviews(*this);
4056         errors("Parse");
4057         return success;
4058 }
4059
4060
4061 // FIXME We could do better here, but it is complicated. What would be
4062 // nice is to offer either (a) to save the child buffer to an appropriate
4063 // location, so that it would "move with the master", or else (b) to update
4064 // the InsetInclude so that it pointed to the same file. But (a) is a bit
4065 // complicated, because the code for this lives in GuiView.
4066 void Buffer::checkChildBuffers()
4067 {
4068         Impl::BufferPositionMap::iterator it = d->children_positions.begin();
4069         Impl::BufferPositionMap::iterator const en = d->children_positions.end();
4070         for (; it != en; ++it) {
4071                 DocIterator dit = it->second;
4072                 Buffer * cbuf = const_cast<Buffer *>(it->first);
4073                 if (!cbuf || !theBufferList().isLoaded(cbuf))
4074                         continue;
4075                 Inset * inset = dit.nextInset();
4076                 LASSERT(inset && inset->lyxCode() == INCLUDE_CODE, continue);
4077                 InsetInclude * inset_inc = static_cast<InsetInclude *>(inset);
4078                 docstring const & incfile = inset_inc->getParam("filename");
4079                 string oldloc = cbuf->absFileName();
4080                 string newloc = makeAbsPath(to_utf8(incfile),
4081                                 onlyPath(absFileName())).absFileName();
4082                 if (oldloc == newloc)
4083                         continue;
4084                 // the location of the child file is incorrect.
4085                 Alert::warning(_("Included File Invalid"),
4086                                 bformat(_("Saving this document to a new location has made the file:\n"
4087                                 "  %1$s\n"
4088                                 "inaccessible. You will need to update the included filename."),
4089                                 from_utf8(oldloc)));
4090                 cbuf->setParent(0);
4091                 inset_inc->setChildBuffer(0);
4092         }
4093         // invalidate cache of children
4094         d->children_positions.clear();
4095         d->position_to_children.clear();
4096 }
4097
4098 } // namespace lyx