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  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "Buffer.h"
  14
  15 #include "Author.h"
  16 #include "BranchList.h"
  17 #include "buffer_funcs.h"
  18 #include "BufferList.h"
  19 #include "BufferParams.h"
  20 #include "Counters.h"
  21 #include "Bullet.h"
  22 #include "Chktex.h"
  23 #include "debug.h"
  24 #include "Encoding.h"
  25 #include "ErrorList.h"
  26 #include "Exporter.h"
  27 #include "Format.h"
  28 #include "FuncRequest.h"
  29 #include "gettext.h"
  30 #include "InsetIterator.h"
  31 #include "Language.h"
  32 #include "LaTeX.h"
  33 #include "LaTeXFeatures.h"
  34 #include "LyXAction.h"
  35 #include "Lexer.h"
  36 #include "Text.h"
  37 #include "LyX.h"
  38 #include "LyXRC.h"
  39 #include "LyXVC.h"
  40 #include "Messages.h"
  41 #include "output.h"
  42 #include "output_docbook.h"
  43 #include "output_latex.h"
  44 #include "Paragraph.h"
  45 #include "paragraph_funcs.h"
  46 #include "ParagraphParameters.h"
  47 #include "ParIterator.h"
  48 #include "sgml.h"
  49 #include "TexRow.h"
  50 #include "TexStream.h"
  51 #include "TocBackend.h"
  52 #include "Undo.h"
  53 #include "version.h"
  54
  55 #include "insets/InsetBibitem.h"
  56 #include "insets/InsetBibtex.h"
  57 #include "insets/InsetInclude.h"
  58 #include "insets/InsetText.h"
  59
  60 #include "mathed/MathMacroTemplate.h"
  61 #include "mathed/MacroTable.h"
  62 #include "mathed/MathSupport.h"
  63
  64 #include "frontends/alert.h"
  65
  66 #include "graphics/Previews.h"
  67
  68 #include "support/types.h"
  69 #include "support/lyxalgo.h"
  70 #include "support/filetools.h"
  71 #include "support/fs_extras.h"
  72 #include "support/gzstream.h"
  73 #include "support/lyxlib.h"
  74 #include "support/os.h"
  75 #include "support/Path.h"
  76 #include "support/textutils.h"
  77 #include "support/convert.h"
  78
  79 #include <boost/bind.hpp>
  80 #include <boost/filesystem/exception.hpp>
  81 #include <boost/filesystem/operations.hpp>
  82
  83 #include <algorithm>
  84 #include <iomanip>
  85 #include <stack>
  86 #include <sstream>
  87 #include <fstream>
  88
  89 using std::endl;
  90 using std::for_each;
  91 using std::make_pair;
  92
  93 using std::ios;
  94 using std::map;
  95 using std::ostream;
  96 using std::ostringstream;
  97 using std::ofstream;
  98 using std::pair;
  99 using std::stack;
 100 using std::vector;
 101 using std::string;
 102 using std::time_t;
 103
 104
 105 namespace lyx {
 106
 107 using support::addName;
 108 using support::bformat;
 109 using support::changeExtension;
 110 using support::cmd_ret;
 111 using support::createBufferTmpDir;
 112 using support::destroyDir;
 113 using support::FileName;
 114 using support::getFormatFromContents;
 115 using support::libFileSearch;
 116 using support::latex_path;
 117 using support::ltrim;
 118 using support::makeAbsPath;
 119 using support::makeDisplayPath;
 120 using support::makeLatexName;
 121 using support::onlyFilename;
 122 using support::onlyPath;
 123 using support::quoteName;
 124 using support::removeAutosaveFile;
 125 using support::rename;
 126 using support::runCommand;
 127 using support::split;
 128 using support::subst;
 129 using support::tempName;
 130 using support::trim;
 131 using support::sum;
 132
 133 namespace Alert = frontend::Alert;
 134 namespace os = support::os;
 135 namespace fs = boost::filesystem;
 136
 137 namespace {
 138
 139 int const LYX_FORMAT = 278;
 140
 141 } // namespace anon
 142
 143
 144 typedef std::map<string, bool> DepClean;
 145
 146 class Buffer::Impl
 147 {
 148 public:
 149         Impl(Buffer & parent, FileName const & file, bool readonly);
 150
 151         limited_stack<Undo> undostack;
 152         limited_stack<Undo> redostack;
 153         BufferParams params;
 154         LyXVC lyxvc;
 155         string temppath;
 156         TexRow texrow;
 157
 158         /// need to regenerate .tex?
 159         DepClean dep_clean;
 160
 161         /// is save needed?
 162         mutable bool lyx_clean;
 163
 164         /// is autosave needed?
 165         mutable bool bak_clean;
 166
 167         /// is this a unnamed file (New...)?
 168         bool unnamed;
 169
 170         /// buffer is r/o
 171         bool read_only;
 172
 173         /// name of the file the buffer is associated with.
 174         FileName filename;
 175
 176         /** Set to true only when the file is fully loaded.
 177          *  Used to prevent the premature generation of previews
 178          *  and by the citation inset.
 179          */
 180         bool file_fully_loaded;
 181
 182         /// our Text that should be wrapped in an InsetText
 183         InsetText inset;
 184
 185         ///
 186         MacroTable macros;
 187
 188         ///
 189         TocBackend toc_backend;
 190
 191         /// Container for all sort of Buffer dependant errors.
 192         map<string, ErrorList> errorLists;
 193
 194         /// timestamp and checksum used to test if the file has been externally
 195         /// modified. (Used to properly enable 'File->Revert to saved', bug 4114).
 196         time_t timestamp_;
 197         unsigned long checksum_;
 198 };
 199
 200
 201 Buffer::Impl::Impl(Buffer & parent, FileName const & file, bool readonly_)
 202         : lyx_clean(true), bak_clean(true), unnamed(false), read_only(readonly_),
 203           filename(file), file_fully_loaded(false), inset(params),
 204           toc_backend(&parent), timestamp_(0), checksum_(0)
 205 {
 206         inset.setAutoBreakRows(true);
 207         lyxvc.buffer(&parent);
 208         temppath = createBufferTmpDir();
 209         params.filepath = onlyPath(file.absFilename());
 210         // FIXME: And now do something if temppath == string(), because we
 211         // assume from now on that temppath points to a valid temp dir.
 212         // See http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg67406.html
 213 }
 214
 215
 216 Buffer::Buffer(string const & file, bool readonly)
 217         : pimpl_(new Impl(*this, FileName(file), readonly))
 218 {
 219         LYXERR(Debug::INFO) << "Buffer::Buffer()" << endl;
 220 }
 221
 222
 223 Buffer::~Buffer()
 224 {
 225         LYXERR(Debug::INFO) << "Buffer::~Buffer()" << endl;
 226         // here the buffer should take care that it is
 227         // saved properly, before it goes into the void.
 228
 229         closing();
 230
 231         if (!temppath().empty() && !destroyDir(FileName(temppath()))) {
 232                 Alert::warning(_("Could not remove temporary directory"),
 233                         bformat(_("Could not remove the temporary directory %1$s"),
 234                         from_utf8(temppath())));
 235         }
 236
 237         // Remove any previewed LaTeX snippets associated with this buffer.
 238         graphics::Previews::get().removeLoader(*this);
 239 }
 240
 241
 242 Text & Buffer::text() const
 243 {
 244         return const_cast<Text &>(pimpl_->inset.text_);
 245 }
 246
 247
 248 Inset & Buffer::inset() const
 249 {
 250         return const_cast<InsetText &>(pimpl_->inset);
 251 }
 252
 253
 254 limited_stack<Undo> & Buffer::undostack()
 255 {
 256         return pimpl_->undostack;
 257 }
 258
 259
 260 limited_stack<Undo> const & Buffer::undostack() const
 261 {
 262         return pimpl_->undostack;
 263 }
 264
 265
 266 limited_stack<Undo> & Buffer::redostack()
 267 {
 268         return pimpl_->redostack;
 269 }
 270
 271
 272 limited_stack<Undo> const & Buffer::redostack() const
 273 {
 274         return pimpl_->redostack;
 275 }
 276
 277
 278 BufferParams & Buffer::params()
 279 {
 280         return pimpl_->params;
 281 }
 282
 283
 284 BufferParams const & Buffer::params() const
 285 {
 286         return pimpl_->params;
 287 }
 288
 289
 290 ParagraphList & Buffer::paragraphs()
 291 {
 292         return text().paragraphs();
 293 }
 294
 295
 296 ParagraphList const & Buffer::paragraphs() const
 297 {
 298         return text().paragraphs();
 299 }
 300
 301
 302 LyXVC & Buffer::lyxvc()
 303 {
 304         return pimpl_->lyxvc;
 305 }
 306
 307
 308 LyXVC const & Buffer::lyxvc() const
 309 {
 310         return pimpl_->lyxvc;
 311 }
 312
 313
 314 string const & Buffer::temppath() const
 315 {
 316         return pimpl_->temppath;
 317 }
 318
 319
 320 TexRow & Buffer::texrow()
 321 {
 322         return pimpl_->texrow;
 323 }
 324
 325
 326 TexRow const & Buffer::texrow() const
 327 {
 328         return pimpl_->texrow;
 329 }
 330
 331
 332 TocBackend & Buffer::tocBackend()
 333 {
 334         return pimpl_->toc_backend;
 335 }
 336
 337
 338 TocBackend const & Buffer::tocBackend() const
 339 {
 340         return pimpl_->toc_backend;
 341 }
 342
 343
 344 string const Buffer::getLatexName(bool const no_path) const
 345 {
 346         string const name = changeExtension(makeLatexName(fileName()), ".tex");
 347         return no_path ? onlyFilename(name) : name;
 348 }
 349
 350
 351 pair<Buffer::LogType, string> const Buffer::getLogName() const
 352 {
 353         string const filename = getLatexName(false);
 354
 355         if (filename.empty())
 356                 return make_pair(Buffer::latexlog, string());
 357
 358         string const path = temppath();
 359
 360         FileName const fname(addName(temppath(),
 361                                      onlyFilename(changeExtension(filename,
 362                                                                   ".log"))));
 363         FileName const bname(
 364                 addName(path, onlyFilename(
 365                         changeExtension(filename,
 366                                         formats.extension("literate") + ".out"))));
 367
 368         // If no Latex log or Build log is newer, show Build log
 369
 370         if (fs::exists(bname.toFilesystemEncoding()) &&
 371             (!fs::exists(fname.toFilesystemEncoding()) ||
 372              fs::last_write_time(fname.toFilesystemEncoding()) < fs::last_write_time(bname.toFilesystemEncoding()))) {
 373                 LYXERR(Debug::FILES) << "Log name calculated as: " << bname << endl;
 374                 return make_pair(Buffer::buildlog, bname.absFilename());
 375         }
 376         LYXERR(Debug::FILES) << "Log name calculated as: " << fname << endl;
 377         return make_pair(Buffer::latexlog, fname.absFilename());
 378 }
 379
 380
 381 void Buffer::setReadonly(bool const flag)
 382 {
 383         if (pimpl_->read_only != flag) {
 384                 pimpl_->read_only = flag;
 385                 readonly(flag);
 386         }
 387 }
 388
 389
 390 void Buffer::setFileName(string const & newfile)
 391 {
 392         pimpl_->filename = makeAbsPath(newfile);
 393         params().filepath = onlyPath(pimpl_->filename.absFilename());
 394         setReadonly(fs::is_readonly(pimpl_->filename.toFilesystemEncoding()));
 395         updateTitles();
 396 }
 397
 398
 399 // We'll remove this later. (Lgb)
 400 namespace {
 401
 402 void unknownClass(string const & unknown)
 403 {
 404         Alert::warning(_("Unknown document class"),
 405                        bformat(_("Using the default document class, because the "
 406                                               "class %1$s is unknown."), from_utf8(unknown)));
 407 }
 408
 409 } // anon
 410
 411
 412 int Buffer::readHeader(Lexer & lex)
 413 {
 414         int unknown_tokens = 0;
 415         int line = -1;
 416         int begin_header_line = -1;
 417
 418         // Initialize parameters that may be/go lacking in header:
 419         params().branchlist().clear();
 420         params().preamble.erase();
 421         params().options.erase();
 422         params().float_placement.erase();
 423         params().paperwidth.erase();
 424         params().paperheight.erase();
 425         params().leftmargin.erase();
 426         params().rightmargin.erase();
 427         params().topmargin.erase();
 428         params().bottommargin.erase();
 429         params().headheight.erase();
 430         params().headsep.erase();
 431         params().footskip.erase();
 432         params().listings_params.clear();
 433         for (int i = 0; i < 4; ++i) {
 434                 params().user_defined_bullet(i) = ITEMIZE_DEFAULTS[i];
 435                 params().temp_bullet(i) = ITEMIZE_DEFAULTS[i];
 436         }
 437
 438         ErrorList & errorList = pimpl_->errorLists["Parse"];
 439
 440         while (lex.isOK()) {
 441                 lex.next();
 442                 string const token = lex.getString();
 443
 444                 if (token.empty())
 445                         continue;
 446
 447                 if (token == "\\end_header")
 448                         break;
 449
 450                 ++line;
 451                 if (token == "\\begin_header") {
 452                         begin_header_line = line;
 453                         continue;
 454                 }
 455
 456                 LYXERR(Debug::PARSER) << "Handling document header token: `"
 457                                       << token << '\'' << endl;
 458
 459                 string unknown = params().readToken(lex, token);
 460                 if (!unknown.empty()) {
 461                         if (unknown[0] != '\\' && token == "\\textclass") {
 462                                 unknownClass(unknown);
 463                         } else {
 464                                 ++unknown_tokens;
 465                                 docstring const s = bformat(_("Unknown token: "
 466                                                                         "%1$s %2$s\n"),
 467                                                          from_utf8(token),
 468                                                          lex.getDocString());
 469                                 errorList.push_back(ErrorItem(_("Document header error"),
 470                                         s, -1, 0, 0));
 471                         }
 472                 }
 473         }
 474         if (begin_header_line) {
 475                 docstring const s = _("\\begin_header is missing");
 476                 errorList.push_back(ErrorItem(_("Document header error"),
 477                         s, -1, 0, 0));
 478         }
 479
 480         return unknown_tokens;
 481 }
 482
 483
 484 // Uwe C. Schroeder
 485 // changed to be public and have one parameter
 486 // Returns false if "\end_document" is not read (Asger)
 487 bool Buffer::readDocument(Lexer & lex)
 488 {
 489         ErrorList & errorList = pimpl_->errorLists["Parse"];
 490         errorList.clear();
 491
 492         lex.next();
 493         string const token = lex.getString();
 494         if (token != "\\begin_document") {
 495                 docstring const s = _("\\begin_document is missing");
 496                 errorList.push_back(ErrorItem(_("Document header error"),
 497                         s, -1, 0, 0));
 498         }
 499
 500         // we are reading in a brand new document
 501         BOOST_ASSERT(paragraphs().empty());
 502
 503         readHeader(lex);
 504         if (!params().getTextClass().load(filePath())) {
 505                 string theclass = params().getTextClass().name();
 506                 Alert::error(_("Can't load document class"), bformat(
 507                         _("Using the default document class, because the "
 508                                      "class %1$s could not be loaded."), from_utf8(theclass)));
 509                 params().textclass = 0;
 510         }
 511
 512         if (params().outputChanges) {
 513                 bool dvipost    = LaTeXFeatures::isAvailable("dvipost");
 514                 bool xcolorsoul = LaTeXFeatures::isAvailable("soul") &&
 515                                   LaTeXFeatures::isAvailable("xcolor");
 516
 517                 if (!dvipost && !xcolorsoul) {
 518                         Alert::warning(_("Changes not shown in LaTeX output"),
 519                                        _("Changes will not be highlighted in LaTeX output, "
 520                                          "because neither dvipost nor xcolor/soul are installed.\n"
 521                                          "Please install these packages or redefine "
 522                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 523                 } else if (!xcolorsoul) {
 524                         Alert::warning(_("Changes not shown in LaTeX output"),
 525                                        _("Changes will not be highlighted in LaTeX output "
 526                                          "when using pdflatex, because xcolor and soul are not installed.\n"
 527                                          "Please install both packages or redefine "
 528                                          "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
 529                 }
 530         }
 531
 532         bool const res = text().read(*this, lex, errorList);
 533         for_each(text().paragraphs().begin(),
 534                  text().paragraphs().end(),
 535                  bind(&Paragraph::setInsetOwner, _1, &inset()));
 536
 537         return res;
 538 }
 539
 540
 541 // needed to insert the selection
 542 void Buffer::insertStringAsLines(ParagraphList & pars,
 543         pit_type & pit, pos_type & pos,
 544         Font const & fn, docstring const & str, bool autobreakrows)
 545 {
 546         Font font = fn;
 547
 548         // insert the string, don't insert doublespace
 549         bool space_inserted = true;
 550         for (docstring::const_iterator cit = str.begin();
 551             cit != str.end(); ++cit) {
 552                 Paragraph & par = pars[pit];
 553                 if (*cit == '\n') {
 554                         if (autobreakrows && (!par.empty() || par.allowEmpty())) {
 555                                 breakParagraph(params(), pars, pit, pos,
 556                                                par.layout()->isEnvironment());
 557                                 ++pit;
 558                                 pos = 0;
 559                                 space_inserted = true;
 560                         } else {
 561                                 continue;
 562                         }
 563                         // do not insert consecutive spaces if !free_spacing
 564                 } else if ((*cit == ' ' || *cit == '\t') &&
 565                            space_inserted && !par.isFreeSpacing()) {
 566                         continue;
 567                 } else if (*cit == '\t') {
 568                         if (!par.isFreeSpacing()) {
 569                                 // tabs are like spaces here
 570                                 par.insertChar(pos, ' ', font, params().trackChanges);
 571                                 ++pos;
 572                                 space_inserted = true;
 573                         } else {
 574                                 const pos_type n = 8 - pos % 8;
 575                                 for (pos_type i = 0; i < n; ++i) {
 576                                         par.insertChar(pos, ' ', font, params().trackChanges);
 577                                         ++pos;
 578                                 }
 579                                 space_inserted = true;
 580                         }
 581                 } else if (!isPrintable(*cit)) {
 582                         // Ignore unprintables
 583                         continue;
 584                 } else {
 585                         // just insert the character
 586                         par.insertChar(pos, *cit, font, params().trackChanges);
 587                         ++pos;
 588                         space_inserted = (*cit == ' ');
 589                 }
 590
 591         }
 592 }
 593
 594
 595 bool Buffer::readString(std::string const & s)
 596 {
 597         params().compressed = false;
 598
 599         // remove dummy empty par
 600         paragraphs().clear();
 601         Lexer lex(0, 0);
 602         std::istringstream is(s);
 603         lex.setStream(is);
 604         FileName const name(tempName());
 605         switch (readFile(lex, name, true)) {
 606         case failure:
 607                 return false;
 608         case wrongversion: {
 609                 // We need to call lyx2lyx, so write the input to a file
 610                 std::ofstream os(name.toFilesystemEncoding().c_str());
 611                 os << s;
 612                 os.close();
 613                 return readFile(name);
 614         }
 615         case success:
 616                 break;
 617         }
 618
 619         return true;
 620 }
 621
 622
 623 bool Buffer::readFile(FileName const & filename)
 624 {
 625         // Check if the file is compressed.
 626         string const format = getFormatFromContents(filename);
 627         if (format == "gzip" || format == "zip" || format == "compress") {
 628                 params().compressed = true;
 629         }
 630
 631         // remove dummy empty par
 632         paragraphs().clear();
 633         Lexer lex(0, 0);
 634         lex.setFile(filename);
 635         if (readFile(lex, filename) != success)
 636                 return false;
 637
 638         return true;
 639 }
 640
 641
 642 bool Buffer::fully_loaded() const
 643 {
 644         return pimpl_->file_fully_loaded;
 645 }
 646
 647
 648 void Buffer::fully_loaded(bool const value)
 649 {
 650         pimpl_->file_fully_loaded = value;
 651 }
 652
 653
 654 Buffer::ReadStatus Buffer::readFile(Lexer & lex, FileName const & filename,
 655                 bool fromstring)
 656 {
 657         BOOST_ASSERT(!filename.empty());
 658
 659         if (!lex.isOK()) {
 660                 Alert::error(_("Document could not be read"),
 661                              bformat(_("%1$s could not be read."), from_utf8(filename.absFilename())));
 662                 return failure;
 663         }
 664
 665         lex.next();
 666         string const token(lex.getString());
 667
 668         if (!lex) {
 669                 Alert::error(_("Document could not be read"),
 670                              bformat(_("%1$s could not be read."), from_utf8(filename.absFilename())));
 671                 return failure;
 672         }
 673
 674         // the first token _must_ be...
 675         if (token != "\\lyxformat") {
 676                 lyxerr << "Token: " << token << endl;
 677
 678                 Alert::error(_("Document format failure"),
 679                              bformat(_("%1$s is not a LyX document."),
 680                                        from_utf8(filename.absFilename())));
 681                 return failure;
 682         }
 683
 684         lex.next();
 685         string tmp_format = lex.getString();
 686         //lyxerr << "LyX Format: `" << tmp_format << '\'' << endl;
 687         // if present remove ".," from string.
 688         string::size_type dot = tmp_format.find_first_of(".,");
 689         //lyxerr << "           dot found at " << dot << endl;
 690         if (dot != string::npos)
 691                         tmp_format.erase(dot, 1);
 692         int const file_format = convert<int>(tmp_format);
 693         //lyxerr << "format: " << file_format << endl;
 694
 695         if (file_format != LYX_FORMAT) {
 696
 697                 if (fromstring)
 698                         // lyx2lyx would fail
 699                         return wrongversion;
 700
 701                 FileName const tmpfile(tempName());
 702                 if (tmpfile.empty()) {
 703                         Alert::error(_("Conversion failed"),
 704                                      bformat(_("%1$s is from a different"
 705                                               " version of LyX, but a temporary"
 706                                               " file for converting it could"
 707                                                             " not be created."),
 708                                               from_utf8(filename.absFilename())));
 709                         return failure;
 710                 }
 711                 FileName const lyx2lyx = libFileSearch("lyx2lyx", "lyx2lyx");
 712                 if (lyx2lyx.empty()) {
 713                         Alert::error(_("Conversion script not found"),
 714                                      bformat(_("%1$s is from a different"
 715                                                " version of LyX, but the"
 716                                                " conversion script lyx2lyx"
 717                                                             " could not be found."),
 718                                                from_utf8(filename.absFilename())));
 719                         return failure;
 720                 }
 721                 ostringstream command;
 722                 command << os::python()
 723                         << ' ' << quoteName(lyx2lyx.toFilesystemEncoding())
 724                         << " -t " << convert<string>(LYX_FORMAT)
 725                         << " -o " << quoteName(tmpfile.toFilesystemEncoding())
 726                         << ' ' << quoteName(filename.toFilesystemEncoding());
 727                 string const command_str = command.str();
 728
 729                 LYXERR(Debug::INFO) << "Running '"
 730                                     << command_str << '\''
 731                                     << endl;
 732
 733                 cmd_ret const ret = runCommand(command_str);
 734                 if (ret.first != 0) {
 735                         Alert::error(_("Conversion script failed"),
 736                                      bformat(_("%1$s is from a different version"
 737                                               " of LyX, but the lyx2lyx script"
 738                                                             " failed to convert it."),
 739                                               from_utf8(filename.absFilename())));
 740                         return failure;
 741                 } else {
 742                         bool const ret = readFile(tmpfile);
 743                         // Do stuff with tmpfile name and buffer name here.
 744                         return ret ? success : failure;
 745                 }
 746
 747         }
 748
 749         if (readDocument(lex)) {
 750                 Alert::error(_("Document format failure"),
 751                              bformat(_("%1$s ended unexpectedly, which means"
 752                                                     " that it is probably corrupted."),
 753                                        from_utf8(filename.absFilename())));
 754         }
 755
 756         //lyxerr << "removing " << MacroTable::localMacros().size()
 757         //      << " temporary macro entries" << endl;
 758         //MacroTable::localMacros().clear();
 759
 760         pimpl_->file_fully_loaded = true;
 761         // save the timestamp and checksum of disk file
 762         pimpl_->timestamp_ = fs::last_write_time(filename.toFilesystemEncoding());
 763         pimpl_->checksum_ = sum(filename);
 764         return success;
 765 }
 766
 767
 768 // Should probably be moved to somewhere else: BufferView? LyXView?
 769 bool Buffer::save() const
 770 {
 771         // We don't need autosaves in the immediate future. (Asger)
 772         resetAutosaveTimers();
 773
 774         string const encodedFilename = pimpl_->filename.toFilesystemEncoding();
 775
 776         FileName backupName;
 777         bool madeBackup = false;
 778
 779         // make a backup if the file already exists
 780         if (lyxrc.make_backup && fs::exists(encodedFilename)) {
 781                 backupName = FileName(fileName() + '~');
 782                 if (!lyxrc.backupdir_path.empty())
 783                         backupName = FileName(addName(lyxrc.backupdir_path,
 784                                               subst(os::internal_path(backupName.absFilename()), '/', '!')));
 785
 786                 try {
 787                         fs::copy_file(encodedFilename, backupName.toFilesystemEncoding(), false);
 788                         madeBackup = true;
 789                 } catch (fs::filesystem_error const & fe) {
 790                         Alert::error(_("Backup failure"),
 791                                      bformat(_("Cannot create backup file %1$s.\n"
 792                                                "Please check whether the directory exists and is writeable."),
 793                                              from_utf8(backupName.absFilename())));
 794                         LYXERR(Debug::DEBUG) << "Fs error: " << fe.what() << endl;
 795                 }
 796         }
 797
 798         // ask if the disk file has been externally modified (use checksum method)
 799         if (fs::exists(encodedFilename) && isExternallyModified(checksum_method)) {
 800                 docstring const file = makeDisplayPath(fileName(), 20);
 801                 docstring text = bformat(_("Document %1$s has been externally modified. Are you sure "
 802                                                              "you want to overwrite this file?"), file);
 803                 int const ret = Alert::prompt(_("Overwrite modified file?"),
 804                         text, 1, 1, _("&Overwrite"), _("&Cancel"));
 805                 if (ret == 1)
 806                         return false;
 807         }
 808
 809         if (writeFile(pimpl_->filename)) {
 810                 markClean();
 811                 removeAutosaveFile(fileName());
 812                 pimpl_->timestamp_ = fs::last_write_time(pimpl_->filename.toFilesystemEncoding());
 813                 pimpl_->checksum_ = sum(pimpl_->filename);
 814                 return true;
 815         } else {
 816                 // Saving failed, so backup is not backup
 817                 if (madeBackup)
 818                         rename(backupName, pimpl_->filename);
 819                 return false;
 820         }
 821 }
 822
 823
 824 bool Buffer::writeFile(FileName const & fname) const
 825 {
 826         if (pimpl_->read_only && fname == pimpl_->filename)
 827                 return false;
 828
 829         bool retval = false;
 830
 831         if (params().compressed) {
 832                 gz::ogzstream ofs(fname.toFilesystemEncoding().c_str(), ios::out|ios::trunc);
 833                 if (!ofs)
 834                         return false;
 835
 836                 retval = write(ofs);
 837         } else {
 838                 ofstream ofs(fname.toFilesystemEncoding().c_str(), ios::out|ios::trunc);
 839                 if (!ofs)
 840                         return false;
 841
 842                 retval = write(ofs);
 843         }
 844
 845         return retval;
 846 }
 847
 848
 849 bool Buffer::write(ostream & ofs) const
 850 {
 851 #ifdef HAVE_LOCALE
 852         // Use the standard "C" locale for file output.
 853         ofs.imbue(std::locale::classic());
 854 #endif
 855
 856         // The top of the file should not be written by params().
 857
 858         // write out a comment in the top of the file
 859         ofs << "#LyX " << lyx_version
 860             << " created this file. For more info see http://www.lyx.org/\n"
 861             << "\\lyxformat " << LYX_FORMAT << "\n"
 862             << "\\begin_document\n";
 863
 864
 865         /// For each author, set 'used' to true if there is a change
 866         /// by this author in the document; otherwise set it to 'false'.
 867         AuthorList::Authors::const_iterator a_it = params().authors().begin();
 868         AuthorList::Authors::const_iterator a_end = params().authors().end();
 869         for (; a_it != a_end; ++a_it)
 870                 a_it->second.used(false);
 871
 872         ParIterator const end = par_iterator_end();
 873         ParIterator it = par_iterator_begin();
 874         for ( ; it != end; ++it)
 875                 it->checkAuthors(params().authors());
 876
 877         // now write out the buffer parameters.
 878         ofs << "\\begin_header\n";
 879         params().writeFile(ofs);
 880         ofs << "\\end_header\n";
 881
 882         // write the text
 883         ofs << "\n\\begin_body\n";
 884         text().write(*this, ofs);
 885         ofs << "\n\\end_body\n";
 886
 887         // Write marker that shows file is complete
 888         ofs << "\\end_document" << endl;
 889
 890         // Shouldn't really be needed....
 891         //ofs.close();
 892
 893         // how to check if close went ok?
 894         // Following is an attempt... (BE 20001011)
 895
 896         // good() returns false if any error occured, including some
 897         //        formatting error.
 898         // bad()  returns true if something bad happened in the buffer,
 899         //        which should include file system full errors.
 900
 901         bool status = true;
 902         if (!ofs) {
 903                 status = false;
 904                 lyxerr << "File was not closed properly." << endl;
 905         }
 906
 907         return status;
 908 }
 909
 910
 911 bool Buffer::makeLaTeXFile(FileName const & fname,
 912                            string const & original_path,
 913                            OutputParams const & runparams,
 914                            bool output_preamble, bool output_body)
 915 {
 916         string const encoding = runparams.encoding->iconvName();
 917         LYXERR(Debug::LATEX) << "makeLaTeXFile encoding: "
 918                 << encoding << "..." << endl;
 919
 920         odocfstream ofs(encoding);
 921         if (!openFileWrite(ofs, fname))
 922                 return false;
 923
 924         //TexStream ts(ofs.rdbuf(), &texrow());
 925
 926         bool failed_export = false;
 927         try {
 928                 texrow().reset();
 929                 writeLaTeXSource(ofs, original_path,
 930                       runparams, output_preamble, output_body);
 931         }
 932         catch (iconv_codecvt_facet_exception & e) {
 933                 lyxerr << "Caught iconv exception: " << e.what() << endl;
 934                 failed_export = true;
 935         }
 936         catch (std::exception const & e) {
 937                 lyxerr << "Caught \"normal\" exception: " << e.what() << endl;
 938                 failed_export = true;
 939         }
 940         catch (...) {
 941                 lyxerr << "Caught some really weird exception..." << endl;
 942                 LyX::cref().emergencyCleanup();
 943                 abort();
 944         }
 945
 946         ofs.close();
 947         if (ofs.fail()) {
 948                 failed_export = true;
 949                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
 950         }
 951
 952         if (failed_export) {
 953                 Alert::error(_("Encoding error"),
 954                         _("Some characters of your document are probably not "
 955                         "representable in the chosen encoding.\n"
 956                         "Changing the document encoding to utf8 could help."));
 957                 return false;
 958         }
 959         return true;
 960 }
 961
 962
 963 void Buffer::writeLaTeXSource(odocstream & os,
 964                            string const & original_path,
 965                            OutputParams const & runparams_in,
 966                            bool const output_preamble, bool const output_body)
 967 {
 968         OutputParams runparams = runparams_in;
 969
 970         // validate the buffer.
 971         LYXERR(Debug::LATEX) << "  Validating buffer..." << endl;
 972         LaTeXFeatures features(*this, params(), runparams);
 973         validate(features);
 974         LYXERR(Debug::LATEX) << "  Buffer validation done." << endl;
 975
 976         // The starting paragraph of the coming rows is the
 977         // first paragraph of the document. (Asger)
 978         if (output_preamble && runparams.nice) {
 979                 os << "%% LyX " << lyx_version << " created this file.  "
 980                         "For more info, see http://www.lyx.org/.\n"
 981                         "%% Do not edit unless you really know what "
 982                         "you are doing.\n";
 983                 texrow().newline();
 984                 texrow().newline();
 985         }
 986         LYXERR(Debug::INFO) << "lyx document header finished" << endl;
 987         // There are a few differences between nice LaTeX and usual files:
 988         // usual is \batchmode and has a
 989         // special input@path to allow the including of figures
 990         // with either \input or \includegraphics (what figinsets do).
 991         // input@path is set when the actual parameter
 992         // original_path is set. This is done for usual tex-file, but not
 993         // for nice-latex-file. (Matthias 250696)
 994         // Note that input@path is only needed for something the user does
 995         // in the preamble, included .tex files or ERT, files included by
 996         // LyX work without it.
 997         if (output_preamble) {
 998                 if (!runparams.nice) {
 999                         // code for usual, NOT nice-latex-file
1000                         os << "\\batchmode\n"; // changed
1001                         // from \nonstopmode
1002                         texrow().newline();
1003                 }
1004                 if (!original_path.empty()) {
1005                         // FIXME UNICODE
1006                         // We don't know the encoding of inputpath
1007                         docstring const inputpath = from_utf8(latex_path(original_path));
1008                         os << "\\makeatletter\n"
1009                            << "\\def\\input@path{{"
1010                            << inputpath << "/}}\n"
1011                            << "\\makeatother\n";
1012                         texrow().newline();
1013                         texrow().newline();
1014                         texrow().newline();
1015                 }
1016
1017                 // Write the preamble
1018                 runparams.use_babel = params().writeLaTeX(os, features, texrow());
1019
1020                 if (!output_body)
1021                         return;
1022
1023                 // make the body.
1024                 os << "\\begin{document}\n";
1025                 texrow().newline();
1026         } // output_preamble
1027
1028         texrow().start(paragraphs().begin()->id(), 0);
1029
1030         LYXERR(Debug::INFO) << "preamble finished, now the body." << endl;
1031
1032         if (!lyxrc.language_auto_begin &&
1033             !params().language->babel().empty()) {
1034                 // FIXME UNICODE
1035                 os << from_utf8(subst(lyxrc.language_command_begin,
1036                                            "$$lang",
1037                                            params().language->babel()))
1038                    << '\n';
1039                 texrow().newline();
1040         }
1041
1042         Encoding const & encoding = params().encoding();
1043         if (encoding.package() == Encoding::CJK) {
1044                 // Open a CJK environment, since in contrast to the encodings
1045                 // handled by inputenc the document encoding is not set in
1046                 // the preamble if it is handled by CJK.sty.
1047                 os << "\\begin{CJK}{" << from_ascii(encoding.latexName())
1048                    << "}{}\n";
1049                 texrow().newline();
1050         }
1051
1052         // if we are doing a real file with body, even if this is the
1053         // child of some other buffer, let's cut the link here.
1054         // This happens for example if only a child document is printed.
1055         string save_parentname;
1056         if (output_preamble) {
1057                 save_parentname = params().parentname;
1058                 params().parentname.erase();
1059         }
1060
1061         loadChildDocuments(*this);
1062
1063         // the real stuff
1064         latexParagraphs(*this, paragraphs(), os, texrow(), runparams);
1065
1066         // Restore the parenthood if needed
1067         if (output_preamble)
1068                 params().parentname = save_parentname;
1069
1070         // add this just in case after all the paragraphs
1071         os << endl;
1072         texrow().newline();
1073
1074         if (encoding.package() == Encoding::CJK) {
1075                 // Close the open CJK environment.
1076                 // latexParagraphs will have opened one even if the last text
1077                 // was not CJK.
1078                 os << "\\end{CJK}\n";
1079                 texrow().newline();
1080         }
1081
1082         if (!lyxrc.language_auto_end &&
1083             !params().language->babel().empty()) {
1084                 os << from_utf8(subst(lyxrc.language_command_end,
1085                                            "$$lang",
1086                                            params().language->babel()))
1087                    << '\n';
1088                 texrow().newline();
1089         }
1090
1091         if (output_preamble) {
1092                 os << "\\end{document}\n";
1093                 texrow().newline();
1094
1095                 LYXERR(Debug::LATEX) << "makeLaTeXFile...done" << endl;
1096         } else {
1097                 LYXERR(Debug::LATEX) << "LaTeXFile for inclusion made."
1098                                      << endl;
1099         }
1100         runparams_in.encoding = runparams.encoding;
1101
1102         // Just to be sure. (Asger)
1103         texrow().newline();
1104
1105         LYXERR(Debug::INFO) << "Finished making LaTeX file." << endl;
1106         LYXERR(Debug::INFO) << "Row count was " << texrow().rows() - 1
1107                             << '.' << endl;
1108 }
1109
1110
1111 bool Buffer::isLatex() const
1112 {
1113         return params().getTextClass().outputType() == LATEX;
1114 }
1115
1116
1117 bool Buffer::isLiterate() const
1118 {
1119         return params().getTextClass().outputType() == LITERATE;
1120 }
1121
1122
1123 bool Buffer::isDocBook() const
1124 {
1125         return params().getTextClass().outputType() == DOCBOOK;
1126 }
1127
1128
1129 void Buffer::makeDocBookFile(FileName const & fname,
1130                               OutputParams const & runparams,
1131                               bool const body_only)
1132 {
1133         LYXERR(Debug::LATEX) << "makeDocBookFile..." << endl;
1134
1135         //ofstream ofs;
1136         odocfstream ofs;
1137         if (!openFileWrite(ofs, fname))
1138                 return;
1139
1140         writeDocBookSource(ofs, fname.absFilename(), runparams, body_only);
1141
1142         ofs.close();
1143         if (ofs.fail())
1144                 lyxerr << "File '" << fname << "' was not closed properly." << endl;
1145 }
1146
1147
1148 void Buffer::writeDocBookSource(odocstream & os, string const & fname,
1149                              OutputParams const & runparams,
1150                              bool const only_body)
1151 {
1152         LaTeXFeatures features(*this, params(), runparams);
1153         validate(features);
1154
1155         texrow().reset();
1156
1157         TextClass const & tclass = params().getTextClass();
1158         string const top_element = tclass.latexname();
1159
1160         if (!only_body) {
1161                 if (runparams.flavor == OutputParams::XML)
1162                         os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
1163
1164                 // FIXME UNICODE
1165                 os << "<!DOCTYPE " << from_ascii(top_element) << ' ';
1166
1167                 // FIXME UNICODE
1168                 if (! tclass.class_header().empty())
1169                         os << from_ascii(tclass.class_header());
1170                 else if (runparams.flavor == OutputParams::XML)
1171                         os << "PUBLIC \"-//OASIS//DTD DocBook XML//EN\" "
1172                             << "\"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd\"";
1173                 else
1174                         os << " PUBLIC \"-//OASIS//DTD DocBook V4.2//EN\"";
1175
1176                 docstring preamble = from_utf8(params().preamble);
1177                 if (runparams.flavor != OutputParams::XML ) {
1178                         preamble += "<!ENTITY % output.print.png \"IGNORE\">\n";
1179                         preamble += "<!ENTITY % output.print.pdf \"IGNORE\">\n";
1180                         preamble += "<!ENTITY % output.print.eps \"IGNORE\">\n";
1181                         preamble += "<!ENTITY % output.print.bmp \"IGNORE\">\n";
1182                 }
1183
1184                 string const name = runparams.nice ? changeExtension(fileName(), ".sgml")
1185                          : fname;
1186                 preamble += features.getIncludedFiles(name);
1187                 preamble += features.getLyXSGMLEntities();
1188
1189                 if (!preamble.empty()) {
1190                         os << "\n [ " << preamble << " ]";
1191                 }
1192                 os << ">\n\n";
1193         }
1194
1195         string top = top_element;
1196         top += " lang=\"";
1197         if (runparams.flavor == OutputParams::XML)
1198                 top += params().language->code();
1199         else
1200                 top += params().language->code().substr(0,2);
1201         top += '"';
1202
1203         if (!params().options.empty()) {
1204                 top += ' ';
1205                 top += params().options;
1206         }
1207
1208         os << "<!-- " << ((runparams.flavor == OutputParams::XML)? "XML" : "SGML")
1209             << " file was created by LyX " << lyx_version
1210             << "\n  See http://www.lyx.org/ for more information -->\n";
1211
1212         params().getTextClass().counters().reset();
1213
1214         loadChildDocuments(*this);
1215
1216         sgml::openTag(os, top);
1217         os << '\n';
1218         docbookParagraphs(paragraphs(), *this, os, runparams);
1219         sgml::closeTag(os, top_element);
1220 }
1221
1222
1223 // chktex should be run with these flags disabled: 3, 22, 25, 30, 38(?)
1224 // Other flags: -wall -v0 -x
1225 int Buffer::runChktex()
1226 {
1227         busy(true);
1228
1229         // get LaTeX-Filename
1230         FileName const path(temppath());
1231         string const name = addName(path.absFilename(), getLatexName());
1232         string const org_path = filePath();
1233
1234         support::Path p(path); // path to LaTeX file
1235         message(_("Running chktex..."));
1236
1237         // Generate the LaTeX file if neccessary
1238         OutputParams runparams(&params().encoding());
1239         runparams.flavor = OutputParams::LATEX;
1240         runparams.nice = false;
1241         makeLaTeXFile(FileName(name), org_path, runparams);
1242
1243         TeXErrors terr;
1244         Chktex chktex(lyxrc.chktex_command, onlyFilename(name), filePath());
1245         int const res = chktex.run(terr); // run chktex
1246
1247         if (res == -1) {
1248                 Alert::error(_("chktex failure"),
1249                              _("Could not run chktex successfully."));
1250         } else if (res > 0) {
1251                 ErrorList & errorList = pimpl_->errorLists["ChkTeX"];
1252                 // Clear out old errors
1253                 errorList.clear();
1254                 // Fill-in the error list with the TeX errors
1255                 bufferErrors(*this, terr, errorList);
1256         }
1257
1258         busy(false);
1259
1260         errors("ChkTeX");
1261
1262         return res;
1263 }
1264
1265
1266 void Buffer::validate(LaTeXFeatures & features) const
1267 {
1268         TextClass const & tclass = params().getTextClass();
1269
1270         if (params().outputChanges) {
1271                 bool dvipost    = LaTeXFeatures::isAvailable("dvipost");
1272                 bool xcolorsoul = LaTeXFeatures::isAvailable("soul") &&
1273                                   LaTeXFeatures::isAvailable("xcolor");
1274
1275                 if (features.runparams().flavor == OutputParams::LATEX) {
1276                         if (dvipost) {
1277                                 features.require("ct-dvipost");
1278                                 features.require("dvipost");
1279                         } else if (xcolorsoul) {
1280                                 features.require("ct-xcolor-soul");
1281                                 features.require("soul");
1282                                 features.require("xcolor");
1283                         } else {
1284                                 features.require("ct-none");
1285                         }
1286                 } else if (features.runparams().flavor == OutputParams::PDFLATEX ) {
1287                         if (xcolorsoul) {
1288                                 features.require("ct-xcolor-soul");
1289                                 features.require("soul");
1290                                 features.require("xcolor");
1291                                 features.require("pdfcolmk"); // improves color handling in PDF output
1292                         } else {
1293                                 features.require("ct-none");
1294                         }
1295                 }
1296         }
1297
1298         // AMS Style is at document level
1299         if (params().use_amsmath == BufferParams::package_on
1300             || tclass.provides("amsmath"))
1301                 features.require("amsmath");
1302         if (params().use_esint == BufferParams::package_on)
1303                 features.require("esint");
1304
1305         loadChildDocuments(*this);
1306
1307         for_each(paragraphs().begin(), paragraphs().end(),
1308                  boost::bind(&Paragraph::validate, _1, boost::ref(features)));
1309
1310         // the bullet shapes are buffer level not paragraph level
1311         // so they are tested here
1312         for (int i = 0; i < 4; ++i) {
1313                 if (params().user_defined_bullet(i) != ITEMIZE_DEFAULTS[i]) {
1314                         int const font = params().user_defined_bullet(i).getFont();
1315                         if (font == 0) {
1316                                 int const c = params()
1317                                         .user_defined_bullet(i)
1318                                         .getCharacter();
1319                                 if (c == 16
1320                                    || c == 17
1321                                    || c == 25
1322                                    || c == 26
1323                                    || c == 31) {
1324                                         features.require("latexsym");
1325                                 }
1326                         } else if (font == 1) {
1327                                 features.require("amssymb");
1328                         } else if ((font >= 2 && font <= 5)) {
1329                                 features.require("pifont");
1330                         }
1331                 }
1332         }
1333
1334         if (lyxerr.debugging(Debug::LATEX)) {
1335                 features.showStruct();
1336         }
1337 }
1338
1339
1340 void Buffer::getLabelList(vector<docstring> & list) const
1341 {
1342         /// if this is a child document and the parent is already loaded
1343         /// Use the parent's list instead  [ale990407]
1344         Buffer const * tmp = getMasterBuffer();
1345         if (!tmp) {
1346                 lyxerr << "getMasterBuffer() failed!" << endl;
1347                 BOOST_ASSERT(tmp);
1348         }
1349         if (tmp != this) {
1350                 tmp->getLabelList(list);
1351                 return;
1352         }
1353
1354         loadChildDocuments(*this);
1355
1356         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it)
1357                 it.nextInset()->getLabelList(*this, list);
1358 }
1359
1360
1361 // This is also a buffer property (ale)
1362 void Buffer::fillWithBibKeys(vector<pair<string, docstring> > & keys)
1363         const
1364 {
1365         biblio::fillWithBibKeys(this, keys);
1366 }
1367
1368
1369 void Buffer::updateBibfilesCache()
1370 {
1371         // if this is a child document and the parent is already loaded
1372         // update the parent's cache instead
1373         Buffer * tmp = getMasterBuffer();
1374         BOOST_ASSERT(tmp);
1375         if (tmp != this) {
1376                 tmp->updateBibfilesCache();
1377                 return;
1378         }
1379
1380         bibfilesCache_.clear();
1381         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
1382                 if (it->lyxCode() == Inset::BIBTEX_CODE) {
1383                         InsetBibtex const & inset =
1384                                 static_cast<InsetBibtex const &>(*it);
1385                         vector<FileName> const bibfiles = inset.getFiles(*this);
1386                         bibfilesCache_.insert(bibfilesCache_.end(),
1387                                 bibfiles.begin(),
1388                                 bibfiles.end());
1389                 } else if (it->lyxCode() == Inset::INCLUDE_CODE) {
1390                         InsetInclude & inset =
1391                                 static_cast<InsetInclude &>(*it);
1392                         inset.updateBibfilesCache(*this);
1393                         vector<FileName> const & bibfiles =
1394                                         inset.getBibfilesCache(*this);
1395                         bibfilesCache_.insert(bibfilesCache_.end(),
1396                                 bibfiles.begin(),
1397                                 bibfiles.end());
1398                 }
1399         }
1400 }
1401
1402
1403 vector<FileName> const & Buffer::getBibfilesCache() const
1404 {
1405         // if this is a child document and the parent is already loaded
1406         // use the parent's cache instead
1407         Buffer const * tmp = getMasterBuffer();
1408         BOOST_ASSERT(tmp);
1409         if (tmp != this)
1410                 return tmp->getBibfilesCache();
1411
1412         // We update the cache when first used instead of at loading time.
1413         if (bibfilesCache_.empty())
1414                 const_cast<Buffer *>(this)->updateBibfilesCache();
1415
1416         return bibfilesCache_;
1417 }
1418
1419
1420 bool Buffer::isDepClean(string const & name) const
1421 {
1422         DepClean::const_iterator const it = pimpl_->dep_clean.find(name);
1423         if (it == pimpl_->dep_clean.end())
1424                 return true;
1425         return it->second;
1426 }
1427
1428
1429 void Buffer::markDepClean(string const & name)
1430 {
1431         pimpl_->dep_clean[name] = true;
1432 }
1433
1434
1435 bool Buffer::dispatch(string const & command, bool * result)
1436 {
1437         return dispatch(lyxaction.lookupFunc(command), result);
1438 }
1439
1440
1441 bool Buffer::dispatch(FuncRequest const & func, bool * result)
1442 {
1443         bool dispatched = true;
1444
1445         switch (func.action) {
1446                 case LFUN_BUFFER_EXPORT: {
1447                         bool const tmp = Exporter::Export(this, to_utf8(func.argument()), false);
1448                         if (result)
1449                                 *result = tmp;
1450                         break;
1451                 }
1452
1453                 default:
1454                         dispatched = false;
1455         }
1456         return dispatched;
1457 }
1458
1459
1460 void Buffer::changeLanguage(Language const * from, Language const * to)
1461 {
1462         BOOST_ASSERT(from);
1463         BOOST_ASSERT(to);
1464
1465         for_each(par_iterator_begin(),
1466                  par_iterator_end(),
1467                  bind(&Paragraph::changeLanguage, _1, params(), from, to));
1468
1469         text().current_font.setLanguage(to);
1470         text().real_current_font.setLanguage(to);
1471 }
1472
1473
1474 bool Buffer::isMultiLingual() const
1475 {
1476         ParConstIterator end = par_iterator_end();
1477         for (ParConstIterator it = par_iterator_begin(); it != end; ++it)
1478                 if (it->isMultiLingual(params()))
1479                         return true;
1480
1481         return false;
1482 }
1483
1484
1485 ParIterator Buffer::getParFromID(int const id) const
1486 {
1487         ParConstIterator it = par_iterator_begin();
1488         ParConstIterator const end = par_iterator_end();
1489
1490         if (id < 0) {
1491                 // John says this is called with id == -1 from undo
1492                 lyxerr << "getParFromID(), id: " << id << endl;
1493                 return end;
1494         }
1495
1496         for (; it != end; ++it)
1497                 if (it->id() == id)
1498                         return it;
1499
1500         return end;
1501 }
1502
1503
1504 bool Buffer::hasParWithID(int const id) const
1505 {
1506         ParConstIterator const it = getParFromID(id);
1507         return it != par_iterator_end();
1508 }
1509
1510
1511 ParIterator Buffer::par_iterator_begin()
1512 {
1513         return lyx::par_iterator_begin(inset());
1514 }
1515
1516
1517 ParIterator Buffer::par_iterator_end()
1518 {
1519         return lyx::par_iterator_end(inset());
1520 }
1521
1522
1523 ParConstIterator Buffer::par_iterator_begin() const
1524 {
1525         return lyx::par_const_iterator_begin(inset());
1526 }
1527
1528
1529 ParConstIterator Buffer::par_iterator_end() const
1530 {
1531         return lyx::par_const_iterator_end(inset());
1532 }
1533
1534
1535 Language const * Buffer::getLanguage() const
1536 {
1537         return params().language;
1538 }
1539
1540
1541 docstring const Buffer::B_(string const & l10n) const
1542 {
1543         return params().B_(l10n);
1544 }
1545
1546
1547 bool Buffer::isClean() const
1548 {
1549         return pimpl_->lyx_clean;
1550 }
1551
1552
1553 bool Buffer::isBakClean() const
1554 {
1555         return pimpl_->bak_clean;
1556 }
1557
1558
1559 bool Buffer::isExternallyModified(CheckMethod method) const
1560 {
1561         BOOST_ASSERT(fs::exists(pimpl_->filename.toFilesystemEncoding()));
1562         // if method == timestamp, check timestamp before checksum
1563         return (method == checksum_method
1564                 || pimpl_->timestamp_ != fs::last_write_time(pimpl_->filename.toFilesystemEncoding()))
1565                 && pimpl_->checksum_ != sum(pimpl_->filename);
1566 }
1567
1568
1569 void Buffer::markClean() const
1570 {
1571         if (!pimpl_->lyx_clean) {
1572                 pimpl_->lyx_clean = true;
1573                 updateTitles();
1574         }
1575         // if the .lyx file has been saved, we don't need an
1576         // autosave
1577         pimpl_->bak_clean = true;
1578 }
1579
1580
1581 void Buffer::markBakClean()
1582 {
1583         pimpl_->bak_clean = true;
1584 }
1585
1586
1587 void Buffer::setUnnamed(bool flag)
1588 {
1589         pimpl_->unnamed = flag;
1590 }
1591
1592
1593 bool Buffer::isUnnamed() const
1594 {
1595         return pimpl_->unnamed;
1596 }
1597
1598
1599 // FIXME: this function should be moved to buffer_pimpl.C
1600 void Buffer::markDirty()
1601 {
1602         if (pimpl_->lyx_clean) {
1603                 pimpl_->lyx_clean = false;
1604                 updateTitles();
1605         }
1606         pimpl_->bak_clean = false;
1607
1608         DepClean::iterator it = pimpl_->dep_clean.begin();
1609         DepClean::const_iterator const end = pimpl_->dep_clean.end();
1610
1611         for (; it != end; ++it)
1612                 it->second = false;
1613 }
1614
1615
1616 string const Buffer::fileName() const
1617 {
1618         return pimpl_->filename.absFilename();
1619 }
1620
1621
1622 string const & Buffer::filePath() const
1623 {
1624         return params().filepath;
1625 }
1626
1627
1628 bool Buffer::isReadonly() const
1629 {
1630         return pimpl_->read_only;
1631 }
1632
1633
1634 void Buffer::setParentName(string const & name)
1635 {
1636         if (name == pimpl_->filename.absFilename())
1637                 // Avoids recursive include.
1638                 params().parentname.clear();
1639         else
1640                 params().parentname = name;
1641 }
1642
1643
1644 Buffer const * Buffer::getMasterBuffer() const
1645 {
1646         if (!params().parentname.empty()
1647             && theBufferList().exists(params().parentname)) {
1648                 Buffer const * buf = theBufferList().getBuffer(params().parentname);
1649                 //We need to check if the parent is us...
1650                 //FIXME RECURSIVE INCLUDE
1651                 //This is not sufficient, since recursive includes could be downstream.
1652                 if (buf && buf != this)
1653                         return buf->getMasterBuffer();
1654         }
1655
1656         return this;
1657 }
1658
1659
1660 Buffer * Buffer::getMasterBuffer()
1661 {
1662         if (!params().parentname.empty()
1663             && theBufferList().exists(params().parentname)) {
1664                 Buffer * buf = theBufferList().getBuffer(params().parentname);
1665                 if (buf)
1666                         return buf->getMasterBuffer();
1667         }
1668
1669         return this;
1670 }
1671
1672
1673 MacroData const & Buffer::getMacro(docstring const & name) const
1674 {
1675         return pimpl_->macros.get(name);
1676 }
1677
1678
1679 bool Buffer::hasMacro(docstring const & name) const
1680 {
1681         return pimpl_->macros.has(name);
1682 }
1683
1684
1685 void Buffer::insertMacro(docstring const & name, MacroData const & data)
1686 {
1687         MacroTable::globalMacros().insert(name, data);
1688         pimpl_->macros.insert(name, data);
1689 }
1690
1691
1692 void Buffer::buildMacros()
1693 {
1694         // Start with global table.
1695         pimpl_->macros = MacroTable::globalMacros();
1696
1697         // Now add our own.
1698         ParagraphList const & pars = text().paragraphs();
1699         for (size_t i = 0, n = pars.size(); i != n; ++i) {
1700                 //lyxerr << "searching main par " << i
1701                 //      << " for macro definitions" << std::endl;
1702                 InsetList const & insets = pars[i].insetlist;
1703                 InsetList::const_iterator it = insets.begin();
1704                 InsetList::const_iterator end = insets.end();
1705                 for ( ; it != end; ++it) {
1706                         //lyxerr << "found inset code " << it->inset->lyxCode() << std::endl;
1707                         if (it->inset->lyxCode() == Inset::MATHMACRO_CODE) {
1708                                 MathMacroTemplate const & mac
1709                                         = static_cast<MathMacroTemplate const &>(*it->inset);
1710                                 insertMacro(mac.name(), mac.asMacroData());
1711                         }
1712                 }
1713         }
1714 }
1715
1716
1717 void Buffer::saveCursor(StableDocIterator cur, StableDocIterator anc)
1718 {
1719         cursor_ = cur;
1720         anchor_ = anc;
1721 }
1722
1723
1724 void Buffer::changeRefsIfUnique(docstring const & from, docstring const & to,
1725         Inset::Code code)
1726 {
1727         //FIXME: This does not work for child documents yet.
1728         BOOST_ASSERT(code == Inset::CITE_CODE || code == Inset::REF_CODE);
1729         // Check if the label 'from' appears more than once
1730         vector<docstring> labels;
1731
1732         if (code == Inset::CITE_CODE) {
1733                 vector<pair<string, docstring> > keys;
1734                 fillWithBibKeys(keys);
1735                 vector<pair<string, docstring> >::const_iterator bit  = keys.begin();
1736                 vector<pair<string, docstring> >::const_iterator bend = keys.end();
1737
1738                 for (; bit != bend; ++bit)
1739                         // FIXME UNICODE
1740                         labels.push_back(from_utf8(bit->first));
1741         } else
1742                 getLabelList(labels);
1743
1744         if (std::count(labels.begin(), labels.end(), from) > 1)
1745                 return;
1746
1747         for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
1748                 if (it->lyxCode() == code) {
1749                         InsetCommand & inset = static_cast<InsetCommand &>(*it);
1750                         inset.replaceContents(to_utf8(from), to_utf8(to));
1751                 }
1752         }
1753 }
1754
1755
1756 void Buffer::getSourceCode(odocstream & os, pit_type par_begin,
1757         pit_type par_end, bool full_source)
1758 {
1759         OutputParams runparams(&params().encoding());
1760         runparams.nice = true;
1761         runparams.flavor = OutputParams::LATEX;
1762         runparams.linelen = lyxrc.plaintext_linelen;
1763         // No side effect of file copying and image conversion
1764         runparams.dryrun = true;
1765
1766         texrow().reset();
1767         if (full_source) {
1768                 os << "% " << _("Preview source code") << "\n\n";
1769                 texrow().newline();
1770                 texrow().newline();
1771                 if (isLatex())
1772                         writeLaTeXSource(os, filePath(), runparams, true, true);
1773                 else {
1774                         writeDocBookSource(os, fileName(), runparams, false);
1775                 }
1776         } else {
1777                 runparams.par_begin = par_begin;
1778                 runparams.par_end = par_end;
1779                 if (par_begin + 1 == par_end)
1780                         os << "% "
1781                            << bformat(_("Preview source code for paragraph %1$d"), par_begin)
1782                            << "\n\n";
1783                 else
1784                         os << "% "
1785                            << bformat(_("Preview source code from paragraph %1$s to %2$s"),
1786                                         convert<docstring>(par_begin),
1787                                         convert<docstring>(par_end - 1))
1788                            << "\n\n";
1789                 texrow().newline();
1790                 texrow().newline();
1791                 // output paragraphs
1792                 if (isLatex()) {
1793                         latexParagraphs(*this, paragraphs(), os, texrow(), runparams);
1794                 } else {
1795                         // DocBook
1796                         docbookParagraphs(paragraphs(), *this, os, runparams);
1797                 }
1798         }
1799 }
1800
1801
1802 ErrorList const & Buffer::errorList(string const & type) const
1803 {
1804         static ErrorList const emptyErrorList;
1805         std::map<string, ErrorList>::const_iterator I = pimpl_->errorLists.find(type);
1806         if (I == pimpl_->errorLists.end())
1807                 return emptyErrorList;
1808
1809         return I->second;
1810 }
1811
1812
1813 ErrorList & Buffer::errorList(string const & type)
1814 {
1815         return pimpl_->errorLists[type];
1816 }
1817
1818
1819 } // namespace lyx