src/insets/ExternalSupport.cpp

   1 /**
   2  * \file ExternalSupport.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Asger Alstrup Nielsen
   7  * \author Angus Leeming
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "ExternalSupport.h"
  15 #include "ExternalTemplate.h"
  16 #include "ExternalTransforms.h"
  17 #include "InsetExternal.h"
  18
  19 #include "Buffer.h"
  20 #include "Converter.h"
  21 #include "ErrorList.h"
  22 #include "Exporter.h"
  23 #include "Format.h"
  24 #include "Mover.h"
  25
  26 #include "frontends/alert.h"
  27
  28 #include "support/debug.h"
  29 #include "support/filetools.h"
  30 #include "support/gettext.h"
  31 #include "support/lstrings.h"
  32 #include "support/lyxalgo.h"
  33 #include "support/lyxlib.h"
  34 #include "support/os.h"
  35 #include "support/Package.h"
  36
  37 #include <algorithm>
  38
  39 using std::endl;
  40 using std::string;
  41 using std::vector;
  42
  43
  44 namespace lyx {
  45
  46 using support::FileName;
  47 using support::isValidLaTeXFilename;
  48
  49 namespace external {
  50
  51 Template const * getTemplatePtr(InsetExternalParams const & params)
  52 {
  53         TemplateManager const & etm = TemplateManager::get();
  54         return etm.getTemplateByName(params.templatename());
  55 }
  56
  57
  58 void editExternal(InsetExternalParams const & params, Buffer const & buffer)
  59 {
  60         formats.edit(buffer, params.filename,
  61                      formats.getFormatFromFile(params.filename));
  62 }
  63
  64
  65 namespace {
  66
  67 string const subst_path(string const & input,
  68                         string const & placeholder,
  69                         string const & path,
  70                         bool use_latex_path,
  71                         support::latex_path_extension ext = support::PROTECT_EXTENSION,
  72                         support::latex_path_dots dots = support::LEAVE_DOTS)
  73 {
  74         if (input.find(placeholder) == string::npos)
  75                 return input;
  76         // Don't use external_path here when use_latex_path is false, as the
  77         // path will be compared with another one in internal style later
  78         // in Converters::move.
  79         string const path2 = use_latex_path ?
  80                 support::latex_path(path, ext, dots) : path;
  81         return support::subst(input, placeholder, path2);
  82 }
  83
  84 } // namespace anon
  85
  86
  87 string const doSubstitution(InsetExternalParams const & params,
  88                             Buffer const & buffer, string const & s,
  89                             bool use_latex_path,
  90                             bool external_in_tmpdir,
  91                             Substitute what)
  92 {
  93         Buffer const * masterBuffer = buffer.masterBuffer();
  94         string const parentpath = external_in_tmpdir ?
  95                 masterBuffer->temppath() :
  96                 buffer.filePath();
  97         string const filename = external_in_tmpdir ?
  98                 params.filename.mangledFilename() :
  99                 params.filename.outputFilename(parentpath);
 100         string const basename = support::changeExtension(
 101                         support::onlyFilename(filename), string());
 102         string const absname = support::makeAbsPath(filename, parentpath).absFilename();
 103
 104         string result = s;
 105         if (what != ALL_BUT_PATHS) {
 106                 string const filepath = support::onlyPath(filename);
 107                 string const abspath = support::onlyPath(absname);
 108                 string const masterpath = external_in_tmpdir ?
 109                         masterBuffer->temppath() :
 110                         masterBuffer->filePath();
 111                 // FIXME UNICODE
 112                 string relToMasterPath = support::onlyPath(
 113                                 to_utf8(support::makeRelPath(from_utf8(absname),
 114                                                              from_utf8(masterpath))));
 115                 if (relToMasterPath == "./")
 116                         relToMasterPath.clear();
 117                 // FIXME UNICODE
 118                 string relToParentPath = support::onlyPath(
 119                                 to_utf8(support::makeRelPath(from_utf8(absname),
 120                                                              from_utf8(parentpath))));
 121                 if (relToParentPath == "./")
 122                         relToParentPath.clear();
 123
 124                 result = subst_path(result, "$$FPath", filepath,
 125                                     use_latex_path,
 126                                     support::PROTECT_EXTENSION,
 127                                     support::ESCAPE_DOTS);
 128                 result = subst_path(result, "$$AbsPath", abspath,
 129                                     use_latex_path,
 130                                     support::PROTECT_EXTENSION,
 131                                     support::ESCAPE_DOTS);
 132                 result = subst_path(result, "$$RelPathMaster",
 133                                     relToMasterPath, use_latex_path,
 134                                     support::PROTECT_EXTENSION,
 135                                     support::ESCAPE_DOTS);
 136                 result = subst_path(result, "$$RelPathParent",
 137                                     relToParentPath, use_latex_path,
 138                                     support::PROTECT_EXTENSION,
 139                                     support::ESCAPE_DOTS);
 140                 if (support::absolutePath(filename)) {
 141                         result = subst_path(result, "$$AbsOrRelPathMaster",
 142                                             abspath, use_latex_path,
 143                                             support::PROTECT_EXTENSION,
 144                                             support::ESCAPE_DOTS);
 145                         result = subst_path(result, "$$AbsOrRelPathParent",
 146                                             abspath, use_latex_path,
 147                                             support::PROTECT_EXTENSION,
 148                                             support::ESCAPE_DOTS);
 149                 } else {
 150                         result = subst_path(result, "$$AbsOrRelPathMaster",
 151                                             relToMasterPath, use_latex_path,
 152                                             support::PROTECT_EXTENSION,
 153                                             support::ESCAPE_DOTS);
 154                         result = subst_path(result, "$$AbsOrRelPathParent",
 155                                             relToParentPath, use_latex_path,
 156                                             support::PROTECT_EXTENSION,
 157                                             support::ESCAPE_DOTS);
 158                 }
 159         }
 160
 161         if (what == PATHS)
 162                 return result;
 163
 164         result = subst_path(result, "$$FName", filename, use_latex_path,
 165                             support::EXCLUDE_EXTENSION);
 166         result = subst_path(result, "$$Basename", basename, use_latex_path,
 167                             support::PROTECT_EXTENSION, support::ESCAPE_DOTS);
 168         result = subst_path(result, "$$Extension",
 169                         '.' + support::getExtension(filename), use_latex_path);
 170         result = subst_path(result, "$$Tempname", params.tempname().absFilename(), use_latex_path);
 171         result = subst_path(result, "$$Sysdir",
 172                                 support::package().system_support().absFilename(), use_latex_path);
 173
 174         // Handle the $$Contents(filename) syntax
 175         if (support::contains(result, "$$Contents(\"")) {
 176                 // Since use_latex_path may be true we must extract the file
 177                 // name from s instead of result and do the substitutions
 178                 // again, this time with use_latex_path false.
 179                 size_t const spos = s.find("$$Contents(\"");
 180                 size_t const send = s.find("\")", spos);
 181                 string const file_template = s.substr(spos + 12, send - (spos + 12));
 182                 string const file = doSubstitution(params, buffer,
 183                                                    file_template, false,
 184                                                    external_in_tmpdir, what);
 185                 string contents;
 186
 187                 FileName const absfile(
 188                         support::makeAbsPath(file, masterBuffer->temppath()));
 189                 if (absfile.isReadableFile())
 190                         contents = absfile.fileContents();
 191
 192                 size_t const pos = result.find("$$Contents(\"");
 193                 size_t const end = result.find("\")", pos);
 194                 result.replace(pos, end + 2, contents);
 195         }
 196
 197         return result;
 198 }
 199
 200
 201 namespace {
 202
 203 /** update the file represented by the template.
 204     If \p external_in_tmpdir == true, then the generated file is
 205     placed in the buffer's temporary directory.
 206 */
 207 void updateExternal(InsetExternalParams const & params,
 208                     string const & format,
 209                     Buffer const & buffer,
 210                     ExportData & exportdata,
 211                     bool external_in_tmpdir,
 212                     bool dryrun)
 213 {
 214         Template const * const et_ptr = getTemplatePtr(params);
 215         if (!et_ptr)
 216                 return; // FAILURE
 217         Template const & et = *et_ptr;
 218
 219         if (!et.automaticProduction)
 220                 return; // NOT_NEEDED
 221
 222         Template::Formats::const_iterator cit = et.formats.find(format);
 223         if (cit == et.formats.end())
 224                 return; // FAILURE
 225
 226         Template::Format const & outputFormat = cit->second;
 227         if (outputFormat.updateResult.empty())
 228                 return; // NOT_NEEDED
 229
 230         string from_format = et.inputFormat;
 231         if (from_format.empty())
 232                 return; // NOT_NEEDED
 233
 234         if (from_format == "*") {
 235                 if (params.filename.empty())
 236                         return; // NOT_NEEDED
 237
 238                 // Try and ascertain the file format from its contents.
 239                 from_format = formats.getFormatFromFile(params.filename);
 240                 if (from_format.empty())
 241                         return; // FAILURE
 242         }
 243
 244         string const to_format = outputFormat.updateFormat;
 245         if (to_format.empty())
 246                 return; // NOT_NEEDED
 247
 248         // The master buffer. This is useful when there are multiple levels
 249         // of include files
 250         Buffer const * masterBuffer = buffer.masterBuffer();
 251
 252         // We copy the source file to the temp dir and do the conversion
 253         // there if necessary
 254         FileName const temp_file(
 255                 support::makeAbsPath(params.filename.mangledFilename(),
 256                                      masterBuffer->temppath()));
 257         if (!params.filename.empty() && !params.filename.isDirectory()) {
 258                 unsigned long const from_checksum = params.filename.checksum();
 259                 unsigned long const temp_checksum = temp_file.checksum();
 260
 261                 if (from_checksum != temp_checksum) {
 262                         Mover const & mover = getMover(from_format);
 263                         if (!mover.copy(params.filename, temp_file)) {
 264                                 LYXERR(Debug::EXTERNAL, "external::updateExternal. "
 265                                         << "Unable to copy " << params.filename << " to " << temp_file);
 266                                 return; // FAILURE
 267                         }
 268                 }
 269         }
 270
 271         // the generated file (always in the temp dir)
 272         string const to_file = doSubstitution(params, buffer,
 273                                               outputFormat.updateResult,
 274                                               false, true);
 275         FileName const abs_to_file(
 276                 support::makeAbsPath(to_file, masterBuffer->temppath()));
 277
 278         if (!dryrun) {
 279                 // Record the referenced files for the exporter.
 280                 // The exporter will copy them to the export dir.
 281                 typedef Template::Format::FileMap FileMap;
 282                 FileMap::const_iterator rit  = outputFormat.referencedFiles.begin();
 283                 FileMap::const_iterator rend = outputFormat.referencedFiles.end();
 284                 for (; rit != rend; ++rit) {
 285                         vector<string>::const_iterator fit  = rit->second.begin();
 286                         vector<string>::const_iterator fend = rit->second.end();
 287                         for (; fit != fend; ++fit) {
 288                                 FileName const source(support::makeAbsPath(
 289                                                 doSubstitution(params, buffer, *fit,
 290                                                                false, true),
 291                                                 masterBuffer->temppath()));
 292                                 // The path of the referenced file is never the
 293                                 // temp path, but the filename may be the mangled
 294                                 // or the real name. Therefore we substitute the
 295                                 // paths and names separately.
 296                                 string file = support::subst(*fit, "$$FName",
 297                                                 "$$FPath$$Basename$$Extension");
 298                                 file = doSubstitution(params, buffer, file, false, false,
 299                                                       PATHS);
 300                                 file = doSubstitution(params, buffer, file,
 301                                                       false, external_in_tmpdir,
 302                                                       ALL_BUT_PATHS);
 303                                 // if file is a relative name, it is interpreted
 304                                 // relative to the master document.
 305                                 exportdata.addExternalFile(rit->first, source, file);
 306                         }
 307                 }
 308         }
 309
 310         // Do we need to perform the conversion?
 311         // Yes if to_file does not exist or if from_file is newer than to_file
 312         if (support::compare_timestamps(temp_file, abs_to_file) < 0)
 313                 return; // SUCCESS
 314
 315         // FIXME (Abdel 12/08/06): Is there a need to show these errors?
 316         ErrorList el;
 317         bool const success =
 318                 theConverters().convert(&buffer, temp_file, abs_to_file,
 319                                    params.filename, from_format, to_format, el,
 320                                    Converters::try_default | Converters::try_cache);
 321
 322         if (!success) {
 323                 LYXERR(Debug::EXTERNAL, "external::updateExternal. "
 324                         << "Unable to convert from " << from_format << " to " << to_format);
 325         }
 326
 327         // return success
 328 }
 329
 330
 331 string const substituteCommands(InsetExternalParams const & params,
 332                                 string const & input, string const & format);
 333
 334 string const substituteOptions(InsetExternalParams const & params,
 335                                string const & input, string const & format);
 336
 337 } // namespace anon
 338
 339
 340 int writeExternal(InsetExternalParams const & params,
 341                   string const & format,
 342                   Buffer const & buffer, odocstream & os,
 343                   ExportData & exportdata,
 344                   bool external_in_tmpdir,
 345                   bool dryrun)
 346 {
 347         Template const * const et_ptr = getTemplatePtr(params);
 348         if (!et_ptr)
 349                 return 0;
 350         Template const & et = *et_ptr;
 351
 352         Template::Formats::const_iterator cit = et.formats.find(format);
 353         if (cit == et.formats.end()) {
 354                 LYXERR(Debug::EXTERNAL, "External template format '" << format
 355                         << "' not specified in template " << params.templatename());
 356                 return 0;
 357         }
 358
 359         if (!dryrun || support::contains(cit->second.product, "$$Contents"))
 360                 updateExternal(params, format, buffer, exportdata,
 361                                external_in_tmpdir, dryrun);
 362
 363         bool const use_latex_path = format == "LaTeX";
 364         string str = doSubstitution(params, buffer, cit->second.product,
 365                                     use_latex_path, external_in_tmpdir);
 366
 367         string const absname = support::makeAbsPath(
 368                 params.filename.outputFilename(buffer.filePath()), buffer.filePath()).absFilename();
 369
 370         if (!external_in_tmpdir && !isValidLaTeXFilename(absname)) {
 371                 lyx::frontend::Alert::warning(_("Invalid filename"),
 372                                               _("The following filename is likely to cause trouble "
 373                                                 "when running the exported file through LaTeX: ") +
 374                                               from_utf8(absname));
 375         }
 376
 377         str = substituteCommands(params, str, format);
 378         str = substituteOptions(params, str, format);
 379         // FIXME UNICODE
 380         os << from_utf8(str);
 381         return int(std::count(str.begin(), str.end(),'\n'));
 382 }
 383
 384 namespace {
 385
 386 // Empty template, specialised below.
 387 template <typename TransformType>
 388 string const substituteIt(string const &,
 389                           TransformID,
 390                           string const &,
 391                           Template::Format const &,
 392                           InsetExternalParams const &);
 393
 394
 395 template <>
 396 string const substituteIt<TransformCommand>(string const & input,
 397                                             TransformID id,
 398                                             string const & /* formatname */,
 399                                             Template::Format const & format,
 400                                             InsetExternalParams const & params)
 401 {
 402         typedef std::map<TransformID, TransformStore> Transformers;
 403         Transformers::const_iterator it = format.command_transformers.find(id);
 404         if (it == format.command_transformers.end())
 405                 return input;
 406
 407         TransformStore const & store = it->second;
 408
 409         TransformCommand::ptr_type ptr;
 410         if (id == Rotate)
 411                 ptr = store.getCommandTransformer(params.rotationdata);
 412         else if (id == Resize)
 413                 ptr = store.getCommandTransformer(params.resizedata);
 414
 415         if (!ptr.get())
 416                 return input;
 417
 418         string result =
 419                 support::subst(input, ptr->front_placeholder(), ptr->front());
 420         return support::subst(result, ptr->back_placeholder(),  ptr->back());
 421 }
 422
 423
 424 template <>
 425 string const substituteIt<TransformOption>(string const & input,
 426                                            TransformID id,
 427                                            string const & fname,
 428                                            Template::Format const & format,
 429                                            InsetExternalParams const & params)
 430 {
 431         typedef std::map<TransformID, TransformStore> Transformers;
 432         Transformers::const_iterator it = format.option_transformers.find(id);
 433         if (it == format.option_transformers.end())
 434                 return input;
 435
 436         TransformStore const & store = it->second;
 437
 438         TransformOption::ptr_type ptr;
 439         switch (id) {
 440         case Clip:
 441                 ptr = store.getOptionTransformer(params.clipdata);
 442                 break;
 443         case Extra:
 444                 ptr = store.getOptionTransformer(params.extradata.get(fname));
 445                 break;
 446         case Rotate:
 447                 ptr = store.getOptionTransformer(params.rotationdata);
 448                 break;
 449         case Resize:
 450                 ptr = store.getOptionTransformer(params.resizedata);
 451                 break;
 452         }
 453
 454         if (!ptr.get())
 455                 return input;
 456
 457         return support::subst(input, ptr->placeholder(), ptr->option());
 458 }
 459
 460
 461 template <typename TransformerType>
 462 string const transformIt(InsetExternalParams const & params,
 463                          string const & s, string const & formatname)
 464 {
 465         Template const * const et = getTemplatePtr(params);
 466         if (!et || et->transformIds.empty())
 467                 return s;
 468
 469         Template::Formats::const_iterator fit = et->formats.find(formatname);
 470         if (fit == et->formats.end())
 471                 return s;
 472
 473         string result = s;
 474         Template::Format const & format =  fit->second;
 475
 476         typedef vector<TransformID> TransformsIDs;
 477         TransformsIDs::const_iterator it  = et->transformIds.begin();
 478         TransformsIDs::const_iterator end = et->transformIds.end();
 479         for (; it != end; ++it) {
 480                 result = substituteIt<TransformerType>(result, *it, formatname,
 481                                                        format, params);
 482         }
 483         return result;
 484 }
 485
 486
 487 string const substituteCommands(InsetExternalParams const & params,
 488                                 string const & input, string const & format)
 489 {
 490         return transformIt<TransformCommand>(params, input, format);
 491 }
 492
 493
 494 string const substituteOption(InsetExternalParams const & params,
 495                               string const & input, string const & format)
 496 {
 497         string opt = transformIt<TransformOption>(params, input, format);
 498
 499         if (format == "LaTeX" || format == "PDFLaTeX")
 500                 return sanitizeLatexOption(opt);
 501         if (format == "DocBook")
 502                 return sanitizeDocBookOption(opt);
 503         return opt;
 504 }
 505
 506
 507 string const substituteOptions(InsetExternalParams const & params,
 508                                string const & input, string const & format)
 509 {
 510         string output = input;
 511
 512         Template const * const et = getTemplatePtr(params);
 513         if (!et || et->transformIds.empty())
 514                 return output;
 515
 516         Template::Formats::const_iterator fit = et->formats.find(format);
 517         if (fit == et->formats.end() || fit->second.options.empty())
 518                 return output;
 519
 520         typedef vector<Template::Option> Options;
 521         Options const & options = fit->second.options;
 522         Options::const_iterator it  = options.begin();
 523         Options::const_iterator end = options.end();
 524         for (; it != end; ++it) {
 525                 string const opt = substituteOption(params, it->option, format);
 526                 string const placeholder = "$$" + it->name;
 527                 output = support::subst(output, placeholder, opt);
 528         }
 529
 530         return output;
 531 }
 532
 533 } // namespace anon
 534
 535 } // namespace external
 536
 537 } // namespace lyx