]> git.lyx.org Git - lyx.git/blobdiff - src/converter.C
Add a Buffer::fully_loaded member function, returning true only when
[lyx.git] / src / converter.C
index ac91f7cf7f3039ad8e0469ad8c557481d4af00c3..370843056bf2a18ce44abe252813bc62dd0746c0 100644 (file)
-/* This file is part of
- * ====================================================== 
- * 
- *           LyX, The Document Processor
- *        
- *           Copyright 1995 Matthias Ettrich
- *           Copyright 1995-2000 The LyX Team.
+/**
+ * \file converter.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
  *
- * ====================================================== */
+ * \author Dekel Tsur
+ *
+ * Full author contact details are available in file CREDITS.
+ */
 
 #include <config.h>
 
-#ifdef __GNUG__
-#pragma implementation
-#endif
-
-#include <queue>
-
 #include "converter.h"
-#include "lyxrc.h"
-#include "support/syscall.h"
-#include "support/path.h"
+
 #include "buffer.h"
-#include "bufferview_funcs.h"
+#include "buffer_funcs.h"
+#include "bufferparams.h"
+#include "debug.h"
+#include "format.h"
+#include "gettext.h"
 #include "LaTeX.h"
-#include "LyXView.h"
-#include "minibuffer.h"
-#include "lyx_gui_misc.h"
-#include "lyx_cb.h" // ShowMessage()
 
-using std::map;
-using std::vector;
-using std::queue;
-using std::pair;
+#include "frontends/Alert.h"
+
+#include "support/filetools.h"
+#include "support/lyxlib.h"
+#include "support/path.h"
+#include "support/systemcall.h"
+
+using lyx::support::AddName;
+using lyx::support::bformat;
+using lyx::support::ChangeExtension;
+using lyx::support::compare_ascii_no_case;
+using lyx::support::contains;
+using lyx::support::DirList;
+using lyx::support::GetExtension;
+using lyx::support::LibScriptSearch;
+using lyx::support::MakeRelPath;
+using lyx::support::OnlyFilename;
+using lyx::support::OnlyPath;
+using lyx::support::Path;
+using lyx::support::prefixIs;
+using lyx::support::QuoteName;
+using lyx::support::rename;
+using lyx::support::split;
+using lyx::support::subst;
+using lyx::support::Systemcall;
+
 using std::endl;
-using std::find;
 using std::find_if;
+using std::string;
+using std::vector;
 
-//////////////////////////////////////////////////////////////////////////////
 
-vector<Command> Converter::commands;
-string Converter::latex_command;
+namespace {
 
-inline
-string const add_options(string const & command, string const & options)
-{
-       string head;
-       string tail = split(command, head, ' ');
-       return head + ' ' + options + ' ' + tail;
-}
+string const token_from("$$i");
+string const token_base("$$b");
+string const token_to("$$o");
+string const token_path("$$p");
 
-//////////////////////////////////////////////////////////////////////////////
 
 
-bool Format::dummy() const
+string const add_options(string const & command, string const & options)
 {
-       return extension.empty();
+       string head;
+       string const tail = split(command, head, ' ');
+       return head + ' ' + options + ' ' + tail;
 }
 
 
-void Formats::Add(string const & name)
+string const dvipdfm_options(BufferParams const & bp)
 {
-       if (formats.find(name) == formats.end())
-               formats[name] = Format(name, name, name, "", "");
-}
-
+       string result;
 
-void Formats::Add(string const & name, string const & extension, 
-                 string const & prettyname, string const & shortcut)
-{
+       if (bp.papersize2 != VM_PAPER_CUSTOM) {
+               string const paper_size = bp.paperSizeName();
+               if (paper_size != "b5" && paper_size != "foolscap")
+                       result = "-p "+ paper_size;
 
-       if (prettyname.empty()) {
-               FormatList::iterator it = formats.find(name);
-               if (it != formats.end())
-                       formats.erase(it);
-               return;
+               if (bp.orientation == ORIENTATION_LANDSCAPE)
+                       result += " -l";
        }
 
-       string old_viewer = formats[name].viewer;
-       formats[name] = Format(name, extension, prettyname, shortcut,
-                              old_viewer);
+       return result;
 }
 
+} // namespace anon
 
-void Formats::SetViewer(string const & name, string const & command)
-{
-       string command2 = command;
-       if (!command2.empty() && !contains(command2,"$$FName"))
-               command2 += " $$FName";
 
-       Add(name);
-       GetFormat(name)->viewer = command2;
-}
+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),
+                            original_dir(false), need_aux(false)
+{}
 
 
-bool Formats::View(Buffer const * buffer, string const & filename,
-                  string const & format_name)
+void Converter::readFlags()
 {
-       if (filename.empty())
-               return false;
-
-       Format const * format = GetFormat(format_name);
-       if (!format || format->viewer.empty()) {
-               WriteAlert(_("Can not view file"),
-                          _("No information for viewing ")
-                          + PrettyName(format_name));
-                          return false;
-       }
-
-       string command = format->viewer;
-
-       if (format_name == "dvi" &&
-           !lyxrc.view_dvi_paper_option.empty()) {
-               string options = lyxrc.view_dvi_paper_option;
-               options += " " + Converter::dvi_papersize(buffer);
-               if (buffer->params.orientation 
-                   == BufferParams::ORIENTATION_LANDSCAPE)
-                       options += 'r';
-               command = add_options(command, options);
-        }
-
-       string command2 = subst(command, "$$FName", OnlyFilename(filename));
-       lyxerr << "Executing command: " << command2 << endl;
-       ShowMessage(buffer, _("Executing command:"), command2);
-
-       command = subst(command, "$$FName", QuoteName(filename));
-       Systemcalls one;
-       int res = one.startscript(Systemcalls::SystemDontWait, command);
-
-       if (res) {
-               WriteAlert(_("Can not view file"),
-                          _("Error while executing"),
-                          command.substr(0, 50));
-               return false;
+       string flag_list(flags);
+       while (!flag_list.empty()) {
+               string flag_name, flag_value;
+               flag_list = split(flag_list, flag_value, ',');
+               flag_value = split(flag_value, flag_name, '=');
+               if (flag_name == "latex")
+                       latex = true;
+               else if (flag_name == "originaldir")
+                       original_dir = true;
+               else if (flag_name == "needaux")
+                       need_aux = true;
+               else if (flag_name == "resultdir")
+                       result_dir = (flag_value.empty())
+                               ? token_base : flag_value;
+               else if (flag_name == "resultfile")
+                       result_file = flag_value;
+               else if (flag_name == "parselog")
+                       parselog = flag_value;
        }
-       return true;
+       if (!result_dir.empty() && result_file.empty())
+               result_file = "index." + formats.extension(to);
+       //if (!contains(command, token_from))
+       //      latex = true;
 }
 
 
-Format * Formats::GetFormat(string const & name)
+bool operator<(Converter const & a, Converter const & b)
 {
-       FormatList::iterator it = formats.find(name);
-       if (it != formats.end())
-               return &it->second;
+       // 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 0;
+               return i < 0;
 }
 
 
-string const Formats::PrettyName(string const & name)
-{
-       Format const * format = GetFormat(name);
-       if (format)
-               return format->prettyname;
-       else
-               return name;
-}
+class compare_Converter {
+public:
+       compare_Converter(string const & f, string const & t)
+               : from(f), to(t) {}
+       bool operator()(Converter const & c) {
+               return c.from == from && c.to == to;
+       }
+private:
+       string const & from;
+       string const & to;
+};
 
 
-string const Formats::Extension(string const & name)
+
+Converter const * Converters::getConverter(string const & from,
+                                           string const & to)
 {
-       Format const * format = GetFormat(name);
-       if (format)
-               return format->extension;
+       ConverterList::const_iterator cit =
+               find_if(converterlist_.begin(), converterlist_.end(),
+                       compare_Converter(from, to));
+       if (cit != converterlist_.end())
+               return &(*cit);
        else
-               return name;
+               return 0;
 }
 
 
-vector<Format> 
-const Formats::GetAllFormats()
+int Converters::getNumber(string const & from, string const & to)
 {
-       vector<Format> result;
-       for (FormatList::iterator it = formats.begin(); 
-            it != formats.end(); ++it)
-               result.push_back(it->second);
-       return result;
+       ConverterList::const_iterator cit =
+               find_if(converterlist_.begin(), converterlist_.end(),
+                       compare_Converter(from, to));
+       if (cit != converterlist_.end())
+               return cit - converterlist_.begin();
+       else
+               return -1;
 }
 
 
-//////////////////////////////////////////////////////////////////////////////
-
-class compare_Command {
-public:
-       compare_Command(Command const & c) : com(c) {}
-       bool operator()(Command const & c) {
-               return c.from == com.from && c.to == com.to;
-       }
-private:
-       Command com;
-};
-
-
-void Converter::Add(string const & from, string const & to,
-                   string const & command, string const & flags)
+void Converters::add(string const & from, string const & to,
+                    string const & command, string const & flags)
 {
-       formats.Add(from);
-       formats.Add(to);
-       Command Com(formats.GetFormat(from), formats.GetFormat(to), command);
-       vector<Command>::iterator it = find_if(commands.begin(),
-                                              commands.end(),
-                                              compare_Command(Com));
-
-       if (command.empty() || command == "none") {
-               if (it != commands.end())
-                       commands.erase(it);
-               return;
+       formats.add(from);
+       formats.add(to);
+       ConverterList::iterator it = find_if(converterlist_.begin(),
+                                            converterlist_.end(),
+                                            compare_Converter(from, to));
+
+       Converter converter(from, to, command, flags);
+       if (it != converterlist_.end() && !flags.empty() && flags[0] == '*') {
+               converter = *it;
+               converter.command = command;
+               converter.flags = flags;
        }
+       converter.readFlags();
 
-
-       // Read the flags
-       string flag_list(flags);
-       while (!flag_list.empty()) {
-               string flag_name, flag_value;
-               flag_list = split(flag_list, flag_value, ',');
-               flag_value = split(flag_value, flag_name, '=');
-               if (flag_name == "*") {
-                       if (it != commands.end()) {
-                               Com = *it;
-                               Com.command = command;
-                       }
-               } 
-               else if (flag_name == "importer")
-                       Com.importer = true;
-               else if (flag_name == "latex")
-                       Com.latex = true;
-               else if (flag_name == "originaldir")
-                       Com.original_dir = true;
-               else if (flag_name == "needaux")
-                       Com.need_aux = true;
-               else if (flag_name == "resultdir")
-                       Com.result_dir = (flag_value.empty())
-                               ? "$$BaseName" : flag_value;
-               else if (flag_name == "resultfile")
-                       Com.result_file = flag_value;
-               else if (flag_name == "parselog")
-                       Com.parselog = flag_value;
-               else if (flag_name == "disable") {
-                       while (!flag_value.empty()) {
-                               string tmp;
-                               flag_value = split(flag_value, tmp, '&');
-                               Com.disable.push_back(tmp);
-                       }
-               }
-       }
-       if (!Com.result_dir.empty() && Com.result_file.empty())
-               Com.result_file = "index." + to;
-       //if (!contains(command, "$$FName"))
-       //      Com.latex = true;
-
-       if (Com.latex && (latex_command.empty() || to == "dvi"))
-               latex_command = command;
+       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 (it != commands.end()) {
-               *it = Com;
-               return;
+       if (it == converterlist_.end()) {
+               converterlist_.push_back(converter);
+       } else {
+               converter.From = it->From;
+               converter.To = it->To;
+               *it = converter;
        }
-       commands.push_back(Com);
 }
 
 
-inline
-bool enable(vector<Command>::iterator it, string const & from)
+void Converters::erase(string const & from, string const & to)
 {
-       return find(it->disable.begin(), it->disable.end(), from)
-               == it->disable.end();
+       ConverterList::iterator it = find_if(converterlist_.begin(),
+                                            converterlist_.end(),
+                                            compare_Converter(from, to));
+       if (it != converterlist_.end())
+               converterlist_.erase(it);
 }
 
 
-vector<FormatPair> const
-Converter::GetReachableTo(string const & target)
+// This method updates the pointers From and To in all the converters.
+// The code is not very efficient, but it doesn't matter as the number
+// of formats and converters is small.
+// Furthermore, this method is called only on startup, or after
+// adding/deleting a format in FormPreferences (the latter calls can be
+// eliminated if the formats in the Formats class are stored using a map or
+// a list (instead of a vector), but this will cause other problems).
+void Converters::update(Formats const & formats)
 {
-       vector<FormatPair> result;
-
-       queue< vector<Command>::iterator > Q;
-       for (vector<Command>::iterator it = commands.begin();
-            it != commands.end(); ++it)
-               if (it->to->name == target && it->importer) {
-                       Q.push(it);
-                       it->visited = true;
-               } else
-                       it->visited = false;
-
-       while (!Q.empty()) {
-               vector<Command>::iterator it = Q.front();
-               Q.pop();
-               result.push_back(FormatPair(it->from, 0, ""));
-               for (vector<Command>::iterator it2 = commands.begin();
-                    it2 != commands.end(); ++it2)
-                       if (!it2->visited && it->from == it2->to &&
-                           it2->importer) {
-                               Q.push(it2);
-                               it2->visited = true;
-                       }
+       ConverterList::iterator it = converterlist_.begin();
+       ConverterList::iterator end = converterlist_.end();
+       for (; it != end; ++it) {
+               it->From = formats.getFormat(it->from);
+               it->To = formats.getFormat(it->to);
        }
-
-       return result;
 }
 
 
-vector<FormatPair> const
-Converter::GetReachable(string const & from, bool only_viewable)
+// This method updates the pointers From and To in the last converter.
+// It is called when adding a new converter in FormPreferences
+void Converters::updateLast(Formats const & formats)
 {
-       vector<FormatPair> result;
-       Format const * format = formats.GetFormat(from);
-       if (!format)
-               return result;
-
-       if (!only_viewable || !format->viewer.empty())
-               result.push_back(FormatPair(format, 0, ""));
-
-       queue< vector<Command>::iterator > Q;
-       for (vector<Command>::iterator it = commands.begin();
-            it != commands.end(); ++it)
-               if (it->from->name == from && enable(it, from) 
-                   && !it->importer) {
-                       Q.push(it);
-                       it->visited = true;
-               } else
-                       it->visited = false;
-
-       while (!Q.empty()) {
-               vector<Command>::iterator it = Q.front();
-               Q.pop();
-               if (!only_viewable || !it->to->viewer.empty())
-                       result.push_back(FormatPair(it->to, it->from,
-                                                   it->command));
-               for (vector<Command>::iterator it2 = commands.begin();
-                    it2 != commands.end(); ++it2)
-                       if (!it2->visited && it->to == it2->from &&
-                           enable(it2, from) && !it2->importer) {
-                               Q.push(it2);
-                               it2->visited = true;
-                       }
+       if (converterlist_.begin() != converterlist_.end()) {
+               ConverterList::iterator it = converterlist_.end() - 1;
+               it->From = formats.getFormat(it->from);
+               it->To = formats.getFormat(it->to);
        }
-
-       return result;
 }
 
 
-bool Converter::IsReachable(string const & from, string const & to)
+void Converters::sort()
 {
-       if (from == to)
-               return true;
+       std::sort(converterlist_.begin(), converterlist_.end());
+}
 
-       queue< vector<Command>::iterator > Q;
-       for (vector<Command>::iterator it = commands.begin();
-            it != commands.end(); ++it)
-               if (it->from->name == from && enable(it, from)) {
-                       Q.push(it);
-                       it->visited = true;
-               } else
-                       it->visited = false;
-
-       while (!Q.empty()) {
-               vector<Command>::iterator it = Q.front();
-               Q.pop();
-               if (it->to->name == to)
-                       return true;
-               for (vector<Command>::iterator it2 = commands.begin();
-                    it2 != commands.end(); ++it2)
-                       if (!it2->visited && it->to == it2->from &&
-                           enable(it2, from)) {
-                               Q.push(it2);
-                               it2->visited = true;
-                       }
+
+bool Converters::usePdflatex(Graph::EdgePath const & path)
+{
+       for (Graph::EdgePath::const_iterator cit = path.begin();
+            cit != path.end(); ++cit) {
+               Converter const & conv = converterlist_[*cit];
+               if (conv.latex)
+                       return contains(conv.to, "pdf");
        }
        return false;
 }
 
 
-bool Converter::Convert(Buffer const * buffer,
-                       string const & from_file, string const & to_file_base,
-                       string const & from_format, string const & to_format,
-                       string const & using_format, string & to_file)
+bool Converters::convert(Buffer const * buffer,
+                        string const & from_file, string const & to_file_base,
+                        string const & from_format, string const & to_format,
+                        string & to_file)
 {
        to_file = ChangeExtension(to_file_base,
-                                 formats.Extension(to_format));
+                                 formats.extension(to_format));
 
        if (from_format == to_format)
-               if (from_file != to_file)
-                       return lyx::rename(from_file, to_file);
-               else
-                       return true;
-
-       queue< vector<Command>::iterator > Q;
-       for (vector<Command>::iterator it = commands.begin();
-            it != commands.end(); ++it)
-               if (it->from->name == from_format && enable(it, from_format)) {
-                       Q.push(it);
-                       it->visited = true;
-                       it->previous = commands.end();
-               } else
-                       it->visited = false;
-
-       if (Q.empty()) {
-               WriteAlert(_("Can not convert file"),
-                          ("Unknown format ") + from_format);
-               return false;
-       }
-
-       bool found = false;
-       vector<Command>::iterator it;
-       while (!Q.empty()) {
-               it = Q.front();
-               if (it->to->name == to_format &&
-                   (using_format.empty() || using_format == it->from->name)) {
-                       found = true;
-                       break;
-               }
-               Q.pop();
-               for (vector<Command>::iterator it2 = commands.begin();
-                    it2 != commands.end(); ++it2)
-                       if (!it2->visited && it->to == it2->from &&
-                           enable(it2, from_format)) {
-                               Q.push(it2);
-                               it2->visited = true;
-                               it2->previous = it;
-                       }
-       }
+               return move(from_file, to_file, false);
 
-       if (!found) {
-               WriteAlert(_("Can not convert file"),
-                          _("No information for converting from ")
-                          + formats.PrettyName(from_format) + _(" to ")
-                          + formats.PrettyName(to_format));
+       Graph::EdgePath edgepath = getPath(from_format, to_format);
+       if (edgepath.empty()) {
                return false;
        }
-
-       vector< vector<Command>::iterator > S;
-       while (it != commands.end()) {
-               S.push_back(it);
-               it = it->previous;
-       }
+       LatexRunParams runparams;
+       runparams.flavor = usePdflatex(edgepath) ?
+               LatexRunParams::PDFLATEX : LatexRunParams::LATEX;
 
        string path = OnlyPath(from_file);
        Path p(path);
@@ -444,342 +295,340 @@ bool Converter::Convert(Buffer const * buffer,
        string to_base = ChangeExtension(to_file, "");
        string infile;
        string outfile = from_file;
-       for (vector< vector<Command>::iterator >::reverse_iterator rit =
-                    S.rbegin(); rit != S.rend(); ++rit) {
-               it = *rit;
-               bool dummy = it->to->dummy() && it->to->name != "program";
+       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 << "Converting from  "
-                              << it->from->name << " to " << it->to->name << endl;
+                       lyxerr[Debug::FILES] << "Converting from  "
+                              << conv.from << " to " << conv.to << endl;
                infile = outfile;
-               outfile = it->result_dir.empty()
-                       ? ChangeExtension(from_file, it->to->extension)
-                       : AddName(subst(it->result_dir,
-                                       "$$BaseName", from_base),
-                                 subst(it->result_file,
-                                       "$$BaseName", OnlyFilename(from_base)));
-
-               if (it->latex) {
-                       lyxrc.pdf_mode = it->to->name == "pdf";
-                       lyxerr << "Running " << it->command << endl;
+               outfile = conv.result_dir.empty()
+                       ? ChangeExtension(from_file, conv.To->extension())
+                       : AddName(subst(conv.result_dir,
+                                       token_base, from_base),
+                                 subst(conv.result_file,
+                                       token_base, OnlyFilename(from_base)));
+
+               // if input and output files are equal, we use a
+               // temporary file as intermediary (JMarc)
+               string real_outfile;
+               if (outfile == infile) {
+                       real_outfile = infile;
+                       outfile = AddName(buffer->temppath(), "tmpfile.out");
+               }
+
+               if (conv.latex) {
                        run_latex = true;
-                       if (!runLaTeX(buffer, it->command))
+                       string command = subst(conv.command, token_from, "");
+                       lyxerr[Debug::FILES] << "Running " << command << endl;
+                       if (!runLaTeX(*buffer, command, runparams))
                                return false;
                } else {
-                       if (it->need_aux && !run_latex
-                           && !latex_command.empty()) {
-                               lyxerr << "Running " << latex_command 
-                                      << " to update aux file"<<  endl;
-                               runLaTeX(buffer, latex_command);
+                       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);
                        }
 
-                       string infile2 = (it->original_dir)
+                       string infile2 = (conv.original_dir)
                                ? infile : MakeRelPath(infile, path);
-                       string outfile2 = (it->original_dir)
+                       string outfile2 = (conv.original_dir)
                                ? outfile : MakeRelPath(outfile, path);
 
-                       string command = it->command;
-                       command = subst(command, "$$FName", QuoteName(infile2));
-                       command = subst(command, "$$BaseName", QuoteName(from_base));
-                       command = subst(command, "$$OutName", QuoteName(outfile2));
+                       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 = LibScriptSearch(command);
 
-                       if (!it->parselog.empty())
+                       if (!conv.parselog.empty())
                                command += " 2> " + QuoteName(infile2 + ".out");
 
-                       if (it->from->name == "dvi" && it->to->name == "ps")
+                       if (conv.from == "dvi" && conv.to == "ps")
+                               command = add_options(command,
+                                                     buffer->params().dvips_options());
+                       else if (conv.from == "dvi" && prefixIs(conv.to, "pdf"))
                                command = add_options(command,
-                                                     dvips_options(buffer));
+                                                     dvipdfm_options(buffer->params()));
 
-                       lyxerr << "Calling " << command << endl;
-                       if (buffer)
-                               ShowMessage(buffer, _("Executing command:"), command);
+                       lyxerr[Debug::FILES] << "Calling " << command << endl;
+                       buffer->message(_("Executing command: ") + command);
 
-                       Systemcalls::Starttype type = (dummy)
-                               ? Systemcalls::SystemDontWait : Systemcalls::System;
-                       Systemcalls one;
+                       Systemcall::Starttype type = (dummy)
+                               ? Systemcall::DontWait : Systemcall::Wait;
+                       Systemcall one;
                        int res;
-                       if (it->original_dir && buffer) {
-                               Path p(buffer->filepath);
+                       if (conv.original_dir) {
+                               Path p(buffer->filePath());
                                res = one.startscript(type, command);
                        } else
                                res = one.startscript(type, command);
 
-                       if (!it->parselog.empty()) {
+                       if (!real_outfile.empty()) {
+                               if (!rename(outfile, real_outfile))
+                                       res = -1;
+                               else
+                                       lyxerr[Debug::FILES]
+                                               << "renaming file " << outfile
+                                               << " to " << real_outfile
+                                               << endl;
+                       }
+
+                       if (!conv.parselog.empty()) {
                                string const logfile =  infile2 + ".log";
-                               string const command2 = it->parselog +
+                               string const script = LibScriptSearch(conv.parselog);
+                               string const command2 = script +
                                        " < " + QuoteName(infile2 + ".out") +
                                        " > " + QuoteName(logfile);
-                               one.startscript(Systemcalls::System, command2);
-                               if (!scanLog(buffer, command, logfile))
+                               one.startscript(Systemcall::Wait, command2);
+                               if (!scanLog(*buffer, command, logfile))
                                        return false;
                        }
 
                        if (res) {
-                               if (it->to->name == "program")
-                                       WriteAlert(_("There were errors during the Build process."),
-                                                  _("You should try to fix them."));
-                               else
-                                       WriteAlert(_("Can not convert file"),
-                                                  "Error while executing",
-                                                  command.substr(0, 50));
+                               if (conv.to == "program") {
+                                       Alert::error(_("Build errors"),
+                                               _("There were errors during the build process."));
+                               } else {
+// 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"),
+                                               command.substr(0, 50)));
+                               }
                                return false;
                        }
                }
        }
 
-       if (it->to->dummy())
+       Converter const & conv = converterlist_[edgepath.back()];
+       if (conv.To->dummy())
                return true;
 
 
-       if (!it->result_dir.empty()) {
-               to_file = AddName(subst(it->result_dir,
-                                       "$$BaseName", to_base),
-                                 subst(it->result_file,
-                                       "$$BaseName", OnlyFilename(to_base)));
+       if (!conv.result_dir.empty()) {
+               to_file = AddName(subst(conv.result_dir, token_base, to_base),
+                                 subst(conv.result_file,
+                                       token_base, OnlyFilename(to_base)));
                if (from_base != to_base) {
-                       string from = subst(it->result_dir,
-                                           "$$BaseName", from_base);
-                       string to = subst(it->result_dir,
-                                         "$$BaseName", to_base);
-                       if (!lyx::rename(from, to)) {
-                               WriteAlert(_("Error while trying to move directory:"),
-                                          from, ("to ") + to);
+                       string from = subst(conv.result_dir,
+                                           token_base, from_base);
+                       string to = subst(conv.result_dir,
+                                         token_base, to_base);
+                       if (!rename(from, to)) {
+                               Alert::error(_("Cannot convert file"),
+                                       bformat(_("Could not move a temporary file from %1$s to %2$s."),
+                                               from, to));
                                return false;
                        }
                }
-       } else if (outfile != to_file) {
-               bool moved = (it->latex)
-                       ? lyx::copy(outfile, to_file)
-                       : lyx::rename(outfile, to_file);
-               if (!moved) {
-                       WriteAlert(_("Error while trying to move file:"),
-                                  outfile, _("to ") + to_file);
-                       return false;
-               }
-       }
-
-        return true;
+               return true;
+       } else
+               return move(outfile, to_file, conv.latex);
 }
 
 
-bool Converter::Convert(Buffer const * buffer,
-                       string const & from_file, string const & to_file_base,
-                       string const & from_format, string const & to_format,
-                       string const & using_format)
+// If from = /path/file.ext and to = /path2/file2.ext2 then this method
+// moves each /path/file*.ext file to /path2/file2*.ext2'
+bool Converters::move(string const & from, string const & to, bool copy)
 {
-       string to_file;
-       return Convert(buffer, from_file, to_file_base, from_format, to_format,
-               using_format, to_file);
+       if (from == to)
+               return true;
+
+       bool no_errors = true;
+       string const path = OnlyPath(from);
+       string const base = OnlyFilename(ChangeExtension(from, ""));
+       string const to_base = ChangeExtension(to, "");
+       string const to_extension = GetExtension(to);
+
+       vector<string> files = DirList(OnlyPath(from), GetExtension(from));
+       for (vector<string>::const_iterator it = files.begin();
+            it != files.end(); ++it)
+               if (prefixIs(*it, base)) {
+                       string const from2 = path + *it;
+                       string to2 = to_base + it->substr(base.length());
+                       to2 = ChangeExtension(to2, to_extension);
+                       lyxerr[Debug::FILES] << "moving " << from2
+                                            << " to " << to2 << endl;
+                       bool const moved = (copy)
+                               ? lyx::support::copy(from2, to2)
+                               : rename(from2, to2);
+                       if (!moved && no_errors) {
+                               Alert::error(_("Cannot convert file"),
+                                       bformat(_("Could not move a temporary file from %1$s to %2$s."),
+                                               from2, to2));
+                               no_errors = false;
+                       }
+               }
+       return no_errors;
 }
 
 
-string const Converter::SplitFormat(string const & str, string & format)
+bool Converters::convert(Buffer const * buffer,
+                        string const & from_file, string const & to_file_base,
+                        string const & from_format, string const & to_format)
 {
-       string using_format = split(str, format, ':');
-       if (format.empty())
-               format = "dvi";
-       return using_format;
+       string to_file;
+       return convert(buffer, from_file, to_file_base, from_format, to_format,
+                      to_file);
 }
 
 
-bool Converter::scanLog(Buffer const * buffer, string const & command,
-                       string const & filename)
+bool Converters::formatIsUsed(string const & format)
 {
-       if (!buffer)
-               return false;
-
-       BufferView * bv = buffer->getUser();
-       bool need_redraw = false;
-       if (bv) {
-               ProhibitInput(bv);
-               // Remove all error insets
-               need_redraw = bv->removeAutoInsets();
+       ConverterList::const_iterator cit = converterlist_.begin();
+       ConverterList::const_iterator end = converterlist_.end();
+       for (; cit != end; ++cit) {
+               if (cit->from == format || cit->to == format)
+                       return true;
        }
+       return false;
+}
+
 
-       LaTeX latex("", filename, "");
+bool Converters::scanLog(Buffer const & buffer, string const & /*command*/,
+                        string const & filename)
+{
+       LatexRunParams runparams;
+       runparams.flavor = LatexRunParams::LATEX;
+       LaTeX latex("", runparams, filename, "");
        TeXErrors terr;
        int result = latex.scanLogFile(terr);
-       if (bv) {
-               if ((result & LaTeX::ERRORS)) {
-                       // Insert all errors as errors boxes
-                       bv->insertErrors(terr);
-                       need_redraw = true;
-               }
-               if (need_redraw) {
-                       bv->redraw();
-                       bv->fitCursor(bv->text);
-               }
-               AllowInput(bv);
-       }
 
-       if ((result & LaTeX::ERRORS)) {
-               int num_errors = latex.getNumErrors();
-               string s;
-               string t;
-               if (num_errors == 1) {
-                       s = _("One error detected");
-                       t = _("You should try to fix it.");
-               } else {
-                       s = tostr(num_errors);
-                       s += _(" errors detected.");
-                       t = _("You should try to fix them.");
-               }
-               string head;
-               split(command, head, ' ');
-               WriteAlert(_("There were errors during running of ") + head,
-                          s, t);
-               return false;
-       } else if (result & LaTeX::NO_OUTPUT) {
-               string const s = _("The operation resulted in");
-               string const t = _("an empty file.");
-               WriteAlert(_("Resulting file is empty"), s, t);
-               return false;
-       }
+       if (result & LaTeX::ERRORS)
+               bufferErrors(buffer, terr);
+
        return true;
 }
 
+namespace {
 
-bool Converter::runLaTeX(Buffer const * buffer, string const & command)
-{
-       if (!buffer)
-               return false;
+class showMessage : public boost::signals::trackable {
+public:
+       showMessage(Buffer const & b) : buffer_(b) {};
+       void operator()(string const & m)
+       {
+               buffer_.message(m);
+       }
+private:
+       Buffer const & buffer_;
+};
 
-       BufferView * bv = buffer->getUser();
-       string name = buffer->getLatexName();
-       bool need_redraw = false;
+}
 
-       if (bv) {
-               ProhibitInput(bv);
-               bv->owner()->getMiniBuffer()->Set(_("Running LaTeX..."));
-               // Remove all error insets
-               need_redraw = bv->removeAutoInsets();
-       }
 
+bool Converters::runLaTeX(Buffer const & buffer, string const & command,
+                         LatexRunParams const & runparams)
+{
+       buffer.busy(true);
+       buffer.message(_("Running LaTeX..."));
 
-       // do the LaTex run(s)
+       // do the LaTeX run(s)
+       string name = buffer.getLatexName();
+       LaTeX latex(command, runparams, name, buffer.filePath());
        TeXErrors terr;
-       LaTeX latex(command, name, buffer->filepath);
-       int result = latex.run(terr,
-                              bv ? bv->owner()->getMiniBuffer() : 0);
-       
-
-       if (bv) {
-               if ((result & LaTeX::ERRORS)) {
-                       // Insert all errors as errors boxes
-                       bv->insertErrors(terr);
-                       need_redraw = true;
-               }
+       showMessage show(buffer);
+       latex.message.connect(show);
+       int result = latex.run(terr);
 
-               // if we removed error insets before we ran LaTeX or if we inserted
-               // error insets after we ran LaTeX this must be run:
-               if (need_redraw) {
-                       bv->redraw();
-                       bv->fitCursor(bv->text);
-               }
-       }
+       if (result & LaTeX::ERRORS)
+               bufferErrors(buffer, terr);
 
        // check return value from latex.run().
        if ((result & LaTeX::NO_LOGFILE)) {
-               WriteAlert(_("LaTeX did not work!"),
-                          _("Missing log file:"), name);
-       } else if ((result & LaTeX::ERRORS)) {
-               int num_errors = latex.getNumErrors();
-               string s;
-               string t;
-               if (num_errors == 1) {
-                       s = _("One error detected");
-                       t = _("You should try to fix it.");
-               } else {
-                       s = tostr(num_errors);
-                       s += _(" errors detected.");
-                       t = _("You should try to fix them.");
-               }
-               WriteAlert(_("There were errors during the LaTeX run."),
-                          s, t);
-       }  else if (result & LaTeX::NO_OUTPUT) {
-               string const s = _("The operation resulted in");
-               string const t = _("an empty file.");
-               WriteAlert(_("Resulting file is empty"), s, t);
+               string str = bformat(_("LaTeX did not run successfully. "
+                                      "Additionally, LyX could not locate "
+                                      "the LaTeX log %1$s."), name);
+               Alert::error(_("LaTeX failed"), str);
+       } else if (result & LaTeX::NO_OUTPUT) {
+               Alert::warning(_("Output is empty"),
+                              _("An empty output file was generated."));
        }
 
-       if (bv)
-               AllowInput(bv);
-       int const ERROR_MASK = 
+
+       buffer.busy(false);
+
+       int const ERROR_MASK =
                        LaTeX::NO_LOGFILE |
                        LaTeX::ERRORS |
                        LaTeX::NO_OUTPUT;
-       
+
        return (result & ERROR_MASK) == 0;
 
 }
 
 
-string const Converter::dvi_papersize(Buffer const * buffer)
+
+void Converters::buildGraph()
 {
-       char real_papersize = buffer->params.papersize;
-       if (real_papersize == BufferParams::PAPER_DEFAULT)
-               real_papersize = lyxrc.default_papersize;
-
-       switch (real_papersize) {
-       case BufferParams::PAPER_A3PAPER:
-               return "a3";
-       case BufferParams::PAPER_A4PAPER:
-               return "a4";
-       case BufferParams::PAPER_A5PAPER:
-               return "a5";
-       case BufferParams::PAPER_B5PAPER:
-               return "b5";
-       case BufferParams::PAPER_EXECUTIVEPAPER:
-               return "foolscap";
-       case BufferParams::PAPER_LEGALPAPER:
-               return "legal";
-       case BufferParams::PAPER_USLETTER:
-       default:
-               return "us";
+       G_.init(formats.size());
+       ConverterList::iterator beg = converterlist_.begin();
+       ConverterList::iterator 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);
        }
 }
 
 
-string const Converter::dvips_options(Buffer const * buffer)
+std::vector<Format const *> const
+Converters::intToFormat(std::vector<int> const & input)
 {
-       string result;
-       if (!buffer)
-               return result;
-
-       if (buffer->params.use_geometry
-           && buffer->params.papersize2 == BufferParams::VM_PAPER_CUSTOM
-           && !lyxrc.print_paper_dimension_flag.empty()
-           && !buffer->params.paperwidth.empty()
-           && !buffer->params.paperheight.empty()) {
-               // using a custom papersize
-               result = lyxrc.print_paper_dimension_flag;
-               result += ' ' + buffer->params.paperwidth;
-               result += ',' + buffer->params.paperheight;
-       } else {
-               string paper_option = dvi_papersize(buffer);
-               if (paper_option == "us")
-                       paper_option = "letter";
-               if (paper_option != "letter" ||
-                   buffer->params.orientation != BufferParams::ORIENTATION_LANDSCAPE) {
-                       // dvips won't accept -t letter -t landscape.  In all other
-                       // cases, include the paper size explicitly.
-                       result = lyxrc.print_paper_flag;
-                       result += ' ' + paper_option;
-               }
+       vector<Format const *> result(input.size());
+
+       vector<int>::const_iterator it = input.begin();
+       vector<int>::const_iterator end = input.end();
+       vector<Format const *>::iterator rit = result.begin();
+       for ( ; it != end; ++it, ++rit) {
+               *rit = &formats.get(*it);
        }
-       if (buffer->params.orientation == BufferParams::ORIENTATION_LANDSCAPE)
-               result += ' ' + lyxrc.print_landscape_flag;
        return result;
 }
 
+vector<Format const *> const
+Converters::getReachableTo(string const & target, bool clear_visited)
+{
+       vector<int> const & reachablesto =
+               G_.getReachableTo(formats.getNumber(target), clear_visited);
+
+       return intToFormat(reachablesto);
+}
+
 
-void Converter::init()
+vector<Format const *> const
+Converters::getReachable(string const & from, bool only_viewable,
+                        bool clear_visited)
 {
+       vector<int> const & reachables =
+               G_.getReachable(formats.getNumber(from),
+                               only_viewable,
+                               clear_visited);
+
+       return intToFormat(reachables);
+}
+
+
+bool Converters::isReachable(string const & from, string const & to)
+{
+       return G_.isReachable(formats.getNumber(from),
+                             formats.getNumber(to));
 }
 
+
+Graph::EdgePath const
+Converters::getPath(string const & from, string const & to)
+{
+       return G_.getPath(formats.getNumber(from),
+                         formats.getNumber(to));
+}
+
+
 /// The global instance
-Formats formats;
+Converters converters;
 
-// The global copy of the system lyxrc entries (everything except preferences)
-Formats system_formats;
+// The global copy after reading lyxrc.defaults
+Converters system_converters;