]> git.lyx.org Git - lyx.git/blobdiff - src/Converter.cpp
Pass the encoding to the japanese pLaTeX processor (#4697).
[lyx.git] / src / Converter.cpp
index 02a5ba6d9670686a695f7cf41a35a4f3ece1a6ad..a421c5317041930837fdacbcb9ca2cb1b59331a8 100644 (file)
 
 #include "Converter.h"
 
-#include "ConverterCache.h"
 #include "Buffer.h"
 #include "buffer_funcs.h"
 #include "BufferParams.h"
-#include "debug.h"
+#include "ConverterCache.h"
+#include "Encoding.h"
+#include "ErrorList.h"
 #include "Format.h"
-#include "gettext.h"
 #include "Language.h"
 #include "LaTeX.h"
 #include "Mover.h"
 
-#include "frontends/Alert.h"
+#include "frontends/alert.h"
 
+#include "support/debug.h"
+#include "support/FileNameList.h"
 #include "support/filetools.h"
-#include "support/lyxlib.h"
+#include "support/gettext.h"
+#include "support/lstrings.h"
 #include "support/os.h"
-#include "support/path.h"
-#include "support/systemcall.h"
+#include "support/Package.h"
+#include "support/Path.h"
+#include "support/Systemcall.h"
 
+using namespace std;
+using namespace lyx::support;
 
 namespace lyx {
 
-using support::addName;
-using support::bformat;
-using support::changeExtension;
-using support::compare_ascii_no_case;
-using support::contains;
-using support::dirList;
-using support::FileName;
-using support::getExtension;
-using support::isFileReadable;
-using support::libFileSearch;
-using support::libScriptSearch;
-using support::makeAbsPath;
-using support::makeRelPath;
-using support::onlyFilename;
-using support::onlyPath;
-using support::prefixIs;
-using support::quoteName;
-using support::removeExtension;
-using support::split;
-using support::subst;
-using support::Systemcall;
-
-using std::endl;
-using std::find_if;
-using std::string;
-using std::vector;
-using std::distance;
-
 namespace Alert = lyx::frontend::Alert;
 
 
@@ -71,7 +49,9 @@ string const token_from("$$i");
 string const token_base("$$b");
 string const token_to("$$o");
 string const token_path("$$p");
-
+string const token_orig_path("$$r");
+string const token_encoding("$$e");
+string const token_latex_encoding("$$E");
 
 
 string const add_options(string const & command, string const & options)
@@ -87,8 +67,8 @@ string const dvipdfm_options(BufferParams const & bp)
        string result;
 
        if (bp.papersize != PAPER_CUSTOM) {
-               string const paper_size = bp.paperSizeName();
-               if (paper_size != "b5" && paper_size != "foolscap")
+               string const paper_size = bp.paperSizeName(BufferParams::DVIPDFM);
+               if (!paper_size.empty())
                        result = "-p "+ paper_size;
 
                if (bp.orientation == ORIENTATION_LANDSCAPE)
@@ -99,7 +79,7 @@ string const dvipdfm_options(BufferParams const & bp)
 }
 
 
-class ConverterEqual : public std::binary_function<string, string, bool> {
+class ConverterEqual {
 public:
        ConverterEqual(string const & from, string const & to)
                : from_(from), to_(to) {}
@@ -118,7 +98,7 @@ Converter::Converter(string const & f, string const & t,
                     string const & c, string const & l)
        : from(f), to(t), command(c), flags(l),
          From(0), To(0), latex(false), xml(false),
-         original_dir(false), need_aux(false)
+         need_aux(false)
 {}
 
 
@@ -129,12 +109,12 @@ void Converter::readFlags()
                string flag_name, flag_value;
                flag_list = split(flag_list, flag_value, ',');
                flag_value = split(flag_value, flag_name, '=');
-               if (flag_name == "latex")
+               if (flag_name == "latex") {
                        latex = true;
-               else if (flag_name == "xml")
+                       latex_flavor = flag_value.empty() ?
+                               "latex" : flag_value;
+               } else if (flag_name == "xml")
                        xml = true;
-               else if (flag_name == "originaldir")
-                       original_dir = true;
                else if (flag_name == "needaux")
                        need_aux = true;
                else if (flag_name == "resultdir")
@@ -152,21 +132,6 @@ void Converter::readFlags()
 }
 
 
-bool operator<(Converter const & a, Converter const & b)
-{
-       // use the compare_ascii_no_case instead of compare_no_case,
-       // because in turkish, 'i' is not the lowercase version of 'I',
-       // and thus turkish locale breaks parsing of tags.
-       int const i = compare_ascii_no_case(a.From->prettyname(),
-                                           b.From->prettyname());
-       if (i == 0)
-               return compare_ascii_no_case(a.To->prettyname(),
-                                            b.To->prettyname()) < 0;
-       else
-               return i < 0;
-}
-
-
 Converter const * Converters::getConverter(string const & from,
                                            string const & to) const
 {
@@ -209,11 +174,16 @@ void Converters::add(string const & from, string const & to,
        }
        converter.readFlags();
 
-       if (converter.latex && (latex_command_.empty() || to == "dvi"))
-               latex_command_ = subst(command, token_from, "");
        // If we have both latex & pdflatex, we set latex_command to latex.
        // The latex_command is used to update the .aux file when running
        // a converter that uses it.
+       if (converter.latex
+           && (latex_command_.empty() || converter.latex_flavor == "latex"))
+               latex_command_ = subst(command, token_from, "");
+       // Similarly, set xelatex_command to xelatex.
+       if (converter.latex
+           && (xelatex_command_.empty() || converter.latex_flavor == "xelatex"))
+               xelatex_command_ = subst(command, token_from, "");
 
        if (it == converterlist_.end()) {
                converterlist_.push_back(converter);
@@ -266,19 +236,19 @@ void Converters::updateLast(Formats const & formats)
 }
 
 
-void Converters::sort()
-{
-       std::sort(converterlist_.begin(), converterlist_.end());
-}
-
-
 OutputParams::FLAVOR Converters::getFlavor(Graph::EdgePath const & path)
 {
        for (Graph::EdgePath::const_iterator cit = path.begin();
             cit != path.end(); ++cit) {
                Converter const & conv = converterlist_[*cit];
                if (conv.latex)
-                       if (contains(conv.to, "pdf"))
+                       if (conv.latex_flavor == "xelatex")
+                               return OutputParams::XETEX;
+                       if (conv.latex_flavor == "lualatex")
+                               return OutputParams::LUATEX;
+                       if (conv.latex_flavor == "dvilualatex")
+                               return OutputParams::DVILUATEX;
+                       if (conv.latex_flavor == "pdflatex")
                                return OutputParams::PDFLATEX;
                if (conv.xml)
                        return OutputParams::XML;
@@ -288,10 +258,10 @@ OutputParams::FLAVOR Converters::getFlavor(Graph::EdgePath const & path)
 
 
 bool Converters::convert(Buffer const * buffer,
-                         FileName const & from_file, FileName const & to_file,
-                         FileName const & orig_from,
-                         string const & from_format, string const & to_format,
-                         ErrorList & errorList, int conversionflags)
+                        FileName const & from_file, FileName const & to_file,
+                        FileName const & orig_from,
+                        string const & from_format, string const & to_format,
+                        ErrorList & errorList, int conversionflags)
 {
        if (from_format == to_format)
                return move(from_format, from_file, to_file, false);
@@ -306,29 +276,36 @@ bool Converters::convert(Buffer const * buffer,
                        // if no special converter defined, then we take the
                        // default one from ImageMagic.
                        string const from_ext = from_format.empty() ?
-                               getExtension(from_file.absFilename()) :
+                               getExtension(from_file.absFileName()) :
                                formats.extension(from_format);
                        string const to_ext = formats.extension(to_format);
                        string const command =
-                               support::os::python() + ' ' +
+                               os::python() + ' ' +
                                quoteName(libFileSearch("scripts", "convertDefault.py").toFilesystemEncoding()) +
                                ' ' +
                                quoteName(from_ext + ':' + from_file.toFilesystemEncoding()) +
                                ' ' +
                                quoteName(to_ext + ':' + to_file.toFilesystemEncoding());
-                       LYXERR(Debug::FILES)
-                               << "No converter defined! "
-                                  "I use convertDefault.py:\n\t"
-                               << command << endl;
+                       LYXERR(Debug::FILES, "No converter defined! "
+                                  "I use convertDefault.py:\n\t" << command);
                        Systemcall one;
-                       one.startscript(Systemcall::Wait, command);
-                       if (isFileReadable(to_file)) {
+                       one.startscript(Systemcall::Wait, command, buffer ?
+                                       buffer->filePath() : string());
+                       if (to_file.isReadableFile()) {
                                if (conversionflags & try_cache)
                                        ConverterCache::get().add(orig_from,
                                                        to_format, to_file);
                                return true;
                        }
                }
+
+               // only warn once per session and per file type
+               static std::map<string, string> warned;
+               if (warned.find(from_format) != warned.end() && warned.find(from_format)->second == to_format) {
+                       return false;
+               }
+               warned.insert(make_pair(from_format, to_format));
+
                Alert::error(_("Cannot convert file"),
                             bformat(_("No information for converting %1$s "
                                                    "format files to %2$s.\n"
@@ -342,74 +319,95 @@ bool Converters::convert(Buffer const * buffer,
        OutputParams runparams(buffer ? &buffer->params().encoding() : 0);
        runparams.flavor = getFlavor(edgepath);
 
+       if (buffer) {
+               runparams.use_japanese = buffer->params().bufferFormat() == "platex";
+               runparams.use_indices = buffer->params().use_indices;
+               runparams.bibtex_command = (buffer->params().bibtex_command == "default") ?
+                       string() : buffer->params().bibtex_command;
+               runparams.index_command = (buffer->params().index_command == "default") ?
+                       string() : buffer->params().index_command;
+       }
+
        // Some converters (e.g. lilypond) can only output files to the
        // current directory, so we need to change the current directory.
        // This has the added benefit that all other files that may be
        // generated by the converter are deleted when LyX closes and do not
        // clutter the real working directory.
-       string const path(onlyPath(from_file.absFilename()));
+       string const path(onlyPath(from_file.absFileName()));
        // Prevent the compiler from optimizing away p
        FileName pp(path);
-       support::Path p(pp);
+       PathChanger p(pp);
 
        // empty the error list before any new conversion takes place.
        errorList.clear();
 
        bool run_latex = false;
-       string from_base = changeExtension(from_file.absFilename(), "");
-       string to_base = changeExtension(to_file.absFilename(), "");
+       string from_base = changeExtension(from_file.absFileName(), "");
+       string to_base = changeExtension(to_file.absFileName(), "");
        FileName infile;
        FileName outfile = from_file;
        for (Graph::EdgePath::const_iterator cit = edgepath.begin();
             cit != edgepath.end(); ++cit) {
                Converter const & conv = converterlist_[*cit];
                bool dummy = conv.To->dummy() && conv.to != "program";
-               if (!dummy)
-                       LYXERR(Debug::FILES) << "Converting from  "
-                              << conv.from << " to " << conv.to << endl;
+               if (!dummy) {
+                       LYXERR(Debug::FILES, "Converting from  "
+                              << conv.from << " to " << conv.to);
+               }
                infile = outfile;
                outfile = FileName(conv.result_dir.empty()
-                       ? changeExtension(from_file.absFilename(), conv.To->extension())
+                       ? changeExtension(from_file.absFileName(), conv.To->extension())
                        : addName(subst(conv.result_dir,
                                        token_base, from_base),
                                  subst(conv.result_file,
-                                       token_base, onlyFilename(from_base))));
+                                       token_base, onlyFileName(from_base))));
 
                // if input and output files are equal, we use a
                // temporary file as intermediary (JMarc)
                FileName real_outfile;
                if (outfile == infile) {
                        real_outfile = infile;
-                       outfile = FileName(addName(buffer->temppath(), "tmpfile.out"));
+                       // when importing, a buffer does not necessarily exist
+                       if (buffer)
+                               outfile = FileName(addName(buffer->temppath(), "tmpfile.out"));
+                       else
+                               outfile = FileName(addName(package().temp_dir().absFileName(),
+                                                  "tmpfile.out"));
                }
 
                if (conv.latex) {
                        run_latex = true;
-                       string const command = subst(conv.command, token_from, "");
-                       LYXERR(Debug::FILES) << "Running " << command << endl;
+                       string command = conv.command;
+                       command = subst(command, token_from, "");
+                       command = subst(command, token_latex_encoding, buffer ?
+                               buffer->params().encoding().latexName() : string());
+                       LYXERR(Debug::FILES, "Running " << command);
                        if (!runLaTeX(*buffer, command, runparams, errorList))
                                return false;
                } else {
                        if (conv.need_aux && !run_latex
                            && !latex_command_.empty()) {
-                               LYXERR(Debug::FILES)
-                                       << "Running " << latex_command_
-                                       << " to update aux file"<<  endl;
-                               runLaTeX(*buffer, latex_command_, runparams, errorList);
+                               string const command = (buffer && buffer->params().useNonTeXFonts) ?
+                                       xelatex_command_ : latex_command_;
+                               LYXERR(Debug::FILES, "Running " << command
+                                       << " to update aux file");
+                               if (!runLaTeX(*buffer, command, runparams, errorList))
+                                       return false;
                        }
 
                        // FIXME UNICODE
-                       string const infile2 = (conv.original_dir)
-                               ? infile.absFilename() : to_utf8(makeRelPath(from_utf8(infile.absFilename()),
-                                                                            from_utf8(path)));
-                       string const outfile2 = (conv.original_dir)
-                               ? outfile.absFilename() : to_utf8(makeRelPath(from_utf8(outfile.absFilename()),
-                                                                             from_utf8(path)));
+                       string const infile2 =
+                               to_utf8(makeRelPath(from_utf8(infile.absFileName()), from_utf8(path)));
+                       string const outfile2 =
+                               to_utf8(makeRelPath(from_utf8(outfile.absFileName()), from_utf8(path)));
 
                        string command = conv.command;
                        command = subst(command, token_from, quoteName(infile2));
                        command = subst(command, token_base, quoteName(from_base));
                        command = subst(command, token_to, quoteName(outfile2));
+                       command = subst(command, token_path, quoteName(onlyPath(infile.absFileName())));
+                       command = subst(command, token_orig_path, quoteName(onlyPath(orig_from.absFileName())));
+                       command = subst(command, token_encoding, buffer ? buffer->params().encoding().iconvName() : string());
                        command = libScriptSearch(command);
 
                        if (!conv.parselog.empty())
@@ -422,48 +420,48 @@ bool Converters::convert(Buffer const * buffer,
                                command = add_options(command,
                                                      dvipdfm_options(buffer->params()));
 
-                       LYXERR(Debug::FILES) << "Calling " << command << endl;
+                       LYXERR(Debug::FILES, "Calling " << command);
                        if (buffer)
                                buffer->message(_("Executing command: ")
                                + from_utf8(command));
 
-                       Systemcall::Starttype const type = (dummy)
-                               ? Systemcall::DontWait : Systemcall::Wait;
                        Systemcall one;
                        int res;
-                       if (conv.original_dir) {
-                               FileName path(buffer->filePath());
-                               support::Path p(path);
-                               res = one.startscript(type,
-                                       to_filesystem8bit(from_utf8(command)));
-                       } else
-                               res = one.startscript(type,
-                                       to_filesystem8bit(from_utf8(command)));
-
-                       if (!real_outfile.empty()) {
-                               Mover const & mover = getMover(conv.to);
-                               if (!mover.rename(outfile, real_outfile))
-                                       res = -1;
-                               else
-                                       LYXERR(Debug::FILES)
-                                               << "renaming file " << outfile
-                                               << " to " << real_outfile
-                                               << endl;
-                               // Finally, don't forget to tell any future
-                               // converters to use the renamed file...
-                               outfile = real_outfile;
-                       }
-
-                       if (!conv.parselog.empty()) {
-                               string const logfile =  infile2 + ".log";
-                               string const script = libScriptSearch(conv.parselog);
-                               string const command2 = script +
-                                       " < " + quoteName(infile2 + ".out") +
-                                       " > " + quoteName(logfile);
-                               one.startscript(Systemcall::Wait,
-                                       to_filesystem8bit(from_utf8(command2)));
-                               if (!scanLog(*buffer, command, makeAbsPath(logfile, path), errorList))
-                                       return false;
+                       if (dummy) {
+                               res = one.startscript(Systemcall::DontWait,
+                                       to_filesystem8bit(from_utf8(command)),
+                                       buffer ? buffer->filePath() : string());
+                               // We're not waiting for the result, so we can't do anything
+                               // else here.
+                       } else {
+                               res = one.startscript(Systemcall::Wait,
+                                               to_filesystem8bit(from_utf8(command)),
+                                               buffer ? buffer->filePath()
+                                                      : string());
+                               if (!real_outfile.empty()) {
+                                       Mover const & mover = getMover(conv.to);
+                                       if (!mover.rename(outfile, real_outfile))
+                                               res = -1;
+                                       else
+                                               LYXERR(Debug::FILES, "renaming file " << outfile
+                                                       << " to " << real_outfile);
+                                       // Finally, don't forget to tell any future
+                                       // converters to use the renamed file...
+                                       outfile = real_outfile;
+                               }
+  
+                               if (!conv.parselog.empty()) {
+                                       string const logfile =  infile2 + ".log";
+                                       string const script = libScriptSearch(conv.parselog);
+                                       string const command2 = script +
+                                               " < " + quoteName(infile2 + ".out") +
+                                               " > " + quoteName(logfile);
+                                       one.startscript(Systemcall::Wait,
+                                               to_filesystem8bit(from_utf8(command2)),
+                                               buffer->filePath());
+                                       if (!scanLog(*buffer, command, makeAbsPath(logfile, path), errorList))
+                                               return false;
+                               }
                        }
 
                        if (res) {
@@ -474,8 +472,8 @@ bool Converters::convert(Buffer const * buffer,
 // FIXME: this should go out of here. For example, here we cannot say if
 // it is a document (.lyx) or something else. Same goes for elsewhere.
                                        Alert::error(_("Cannot convert file"),
-                                               bformat(_("An error occurred whilst running %1$s"),
-                                               from_utf8(command.substr(0, 50))));
+                                               bformat(_("An error occurred while running:\n%1$s"),
+                                               wrapParas(from_utf8(command))));
                                }
                                return false;
                        }
@@ -518,23 +516,21 @@ bool Converters::move(string const & fmt,
                return true;
 
        bool no_errors = true;
-       string const path = onlyPath(from.absFilename());
-       string const base = onlyFilename(removeExtension(from.absFilename()));
-       string const to_base = removeExtension(to.absFilename());
-       string const to_extension = getExtension(to.absFilename());
-
-       vector<FileName> const files = dirList(FileName(path),
-                       getExtension(from.absFilename()));
-       for (vector<FileName>::const_iterator it = files.begin();
+       string const path = onlyPath(from.absFileName());
+       string const base = onlyFileName(removeExtension(from.absFileName()));
+       string const to_base = removeExtension(to.absFileName());
+       string const to_extension = getExtension(to.absFileName());
+
+       support::FileNameList const files = FileName(path).dirList(getExtension(from.absFileName()));
+       for (support::FileNameList::const_iterator it = files.begin();
             it != files.end(); ++it) {
-               string const from2 = it->absFilename();
-               string const file2 = onlyFilename(from2);
+               string const from2 = it->absFileName();
+               string const file2 = onlyFileName(from2);
                if (prefixIs(file2, base)) {
                        string const to2 = changeExtension(
                                to_base + file2.substr(base.length()),
                                to_extension);
-                       LYXERR(Debug::FILES) << "moving " << from2
-                                            << " to " << to2 << endl;
+                       LYXERR(Debug::FILES, "moving " << from2 << " to " << to2);
 
                        Mover const & mover = getMover(fmt);
                        bool const moved = copy
@@ -576,7 +572,7 @@ bool Converters::scanLog(Buffer const & buffer, string const & /*command*/,
        int const result = latex.scanLogFile(terr);
 
        if (result & LaTeX::ERRORS)
-               bufferErrors(buffer, terr, errorList);
+               buffer.bufferErrors(terr, errorList);
 
        return true;
 }
@@ -584,13 +580,11 @@ bool Converters::scanLog(Buffer const & buffer, string const & /*command*/,
 
 namespace {
 
-class showMessage : public std::unary_function<docstring, void>, public boost::signals::trackable {
+class ShowMessage
+       : public boost::signals::trackable {
 public:
-       showMessage(Buffer const & b) : buffer_(b) {};
-       void operator()(docstring const & m) const
-       {
-               buffer_.message(m);
-       }
+       ShowMessage(Buffer const & b) : buffer_(b) {}
+       void operator()(docstring const & msg) const { buffer_.message(msg); }
 private:
        Buffer const & buffer_;
 };
@@ -601,36 +595,37 @@ private:
 bool Converters::runLaTeX(Buffer const & buffer, string const & command,
                          OutputParams const & runparams, ErrorList & errorList)
 {
-       buffer.busy(true);
+       buffer.setBusy(true);
        buffer.message(_("Running LaTeX..."));
 
        runparams.document_language = buffer.params().language->babel();
 
        // do the LaTeX run(s)
-       string const name = buffer.getLatexName();
-       LaTeX latex(command, runparams, FileName(makeAbsPath(name)));
+       string const name = buffer.latexName();
+       LaTeX latex(command, runparams, FileName(makeAbsPath(name)),
+                   buffer.filePath());
        TeXErrors terr;
-       showMessage show(buffer);
+       ShowMessage show(buffer);
        latex.message.connect(show);
        int const result = latex.run(terr);
 
        if (result & LaTeX::ERRORS)
-               bufferErrors(buffer, terr, errorList);
+               buffer.bufferErrors(terr, errorList);
 
        // check return value from latex.run().
-       if ((result & LaTeX::NO_LOGFILE)) {
+       if ((result & LaTeX::NO_LOGFILE) && !buffer.isClone()) {
                docstring const str =
                        bformat(_("LaTeX did not run successfully. "
                                               "Additionally, LyX could not locate "
                                               "the LaTeX log %1$s."), from_utf8(name));
                Alert::error(_("LaTeX failed"), str);
-       } else if (result & LaTeX::NO_OUTPUT) {
+       } else if ((result & LaTeX::NO_OUTPUT) && !buffer.isClone()) {
                Alert::warning(_("Output is empty"),
                               _("An empty output file was generated."));
        }
 
 
-       buffer.busy(false);
+       buffer.setBusy(false);
 
        int const ERROR_MASK =
                        LaTeX::NO_LOGFILE |
@@ -645,19 +640,23 @@ bool Converters::runLaTeX(Buffer const & buffer, string const & command,
 
 void Converters::buildGraph()
 {
+       // clear graph's data structures
        G_.init(formats.size());
-       ConverterList::iterator beg = converterlist_.begin();
+       // each of the converters knows how to convert one format to another
+       // so, for each of them, we create an arrow on the graph, going from 
+       // the one to the other
+       ConverterList::iterator it = converterlist_.begin();
        ConverterList::iterator const end = converterlist_.end();
-       for (ConverterList::iterator it = beg; it != end ; ++it) {
-               int const s = formats.getNumber(it->from);
-               int const t = formats.getNumber(it->to);
-               G_.addEdge(s,t);
+       for (; it != end ; ++it) {
+               int const from = formats.getNumber(it->from);
+               int const to   = formats.getNumber(it->to);
+               G_.addEdge(from, to);
        }
 }
 
 
-std::vector<Format const *> const
-Converters::intToFormat(std::vector<int> const & input)
+vector<Format const *> const
+Converters::intToFormat(vector<int> const & input)
 {
        vector<Format const *> result(input.size());
 
@@ -683,12 +682,20 @@ Converters::getReachableTo(string const & target, bool const clear_visited)
 
 vector<Format const *> const
 Converters::getReachable(string const & from, bool const only_viewable,
-                        bool const clear_visited)
+                        bool const clear_visited, set<string> const & excludes)
 {
+       set<int> excluded_numbers;;
+
+       set<string>::const_iterator sit = excludes.begin();
+       set<string>::const_iterator const end = excludes.end();
+       for (; sit != end; ++sit)
+               excluded_numbers.insert(formats.getNumber(*sit));
+
        vector<int> const & reachables =
                G_.getReachable(formats.getNumber(from),
                                only_viewable,
-                               clear_visited);
+                               clear_visited,
+                               excluded_numbers);
 
        return intToFormat(reachables);
 }
@@ -701,11 +708,68 @@ bool Converters::isReachable(string const & from, string const & to)
 }
 
 
-Graph::EdgePath const
-Converters::getPath(string const & from, string const & to)
+Graph::EdgePath Converters::getPath(string const & from, string const & to)
 {
        return G_.getPath(formats.getNumber(from),
                          formats.getNumber(to));
 }
 
+
+vector<Format const *> Converters::importableFormats()
+{
+       vector<string> l = loaders();
+       vector<Format const *> result = getReachableTo(l[0], true);
+       vector<string>::const_iterator it = l.begin() + 1;
+       vector<string>::const_iterator en = l.end();
+       for (; it != en; ++it) {
+               vector<Format const *> r = getReachableTo(*it, false);
+               result.insert(result.end(), r.begin(), r.end());
+       }
+       return result;
+}
+
+
+vector<Format const *> Converters::exportableFormats(bool only_viewable)
+{
+       vector<string> s = savers();
+       vector<Format const *> result = getReachable(s[0], only_viewable, true);
+       vector<string>::const_iterator it = s.begin() + 1;
+       vector<string>::const_iterator en = s.end();
+       for (; it != en; ++it) {
+               vector<Format const *> r =
+                       getReachable(*it, only_viewable, false);
+               result.insert(result.end(), r.begin(), r.end());
+       }
+       return result;
+}
+
+
+vector<string> Converters::loaders() const
+{
+       vector<string> v;
+       v.push_back("lyx");
+       v.push_back("text");
+       v.push_back("textparagraph");
+       return v;
+}
+
+
+vector<string> Converters::savers() const
+{
+       vector<string> v;
+       v.push_back("docbook");
+       v.push_back("latex");
+       v.push_back("literate");
+       v.push_back("luatex");
+       v.push_back("dviluatex");
+       v.push_back("lyx");
+       v.push_back("xhtml");
+       v.push_back("pdflatex");
+       v.push_back("platex");
+       v.push_back("text");
+       v.push_back("xetex");
+       return v;
+}
+
+
 } // namespace lyx