src/exporter.C

   1 /**
   2  * \file exporter.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author unknown
   7  * \author Alfredo Braunstein
   8  * \author Lars Gullik Bjønnes
   9  * \author Jean Marc Lasgouttes
  10  * \author Angus Leeming
  11  * \author John Levon
  12  * \author André Pönitz
  13  *
  14  * Full author contact details are available in file CREDITS.
  15  */
  16
  17 #include <config.h>
  18
  19 #include "exporter.h"
  20
  21 #include "buffer.h"
  22 #include "buffer_funcs.h"
  23 #include "bufferparams.h"
  24 #include "converter.h"
  25 #include "format.h"
  26 #include "gettext.h"
  27 #include "lyxrc.h"
  28 #include "output_plaintext.h"
  29 #include "outputparams.h"
  30 #include "frontends/Alert.h"
  31
  32 #include "support/filetools.h"
  33
  34 using lyx::support::AddName;
  35 using lyx::support::bformat;
  36 using lyx::support::ChangeExtension;
  37 using lyx::support::contains;
  38 using lyx::support::MakeDisplayPath;
  39
  40 using std::find;
  41 using std::string;
  42 using std::vector;
  43
  44
  45 namespace {
  46
  47 vector<string> const Backends(Buffer const & buffer)
  48 {
  49         vector<string> v;
  50         if (buffer.params().getLyXTextClass().isTeXClassAvailable())
  51                 v.push_back(BufferFormat(buffer));
  52         v.push_back("text");
  53         return v;
  54 }
  55
  56 } //namespace anon
  57
  58
  59 bool Exporter::Export(Buffer * buffer, string const & format,
  60                       bool put_in_tempdir, string & result_file)
  61 {
  62         string backend_format;
  63         OutputParams runparams;
  64         runparams.flavor = OutputParams::LATEX;
  65         runparams.linelen = lyxrc.ascii_linelen;
  66         vector<string> backends = Backends(*buffer);
  67         if (find(backends.begin(), backends.end(), format) == backends.end()) {
  68                 for (vector<string>::const_iterator it = backends.begin();
  69                      it != backends.end(); ++it) {
  70                         Graph::EdgePath p =
  71                                 converters.getPath(*it, format);
  72                         if (!p.empty()) {
  73                                 runparams.flavor = converters.getFlavor(p);
  74                                 backend_format = *it;
  75                                 break;
  76                         }
  77                 }
  78                 if (backend_format.empty()) {
  79                         Alert::error(_("Couldn't export file"),
  80                                 bformat(_("No information for exporting the format %1$s."),
  81                                    formats.prettyName(format)));
  82                         return false;
  83                 }
  84         } else
  85                 backend_format = format;
  86
  87         string filename = buffer->getLatexName(false);
  88         filename = AddName(buffer->temppath(), filename);
  89         filename = ChangeExtension(filename,
  90                                    formats.extension(backend_format));
  91
  92         // Ascii backend
  93         if (backend_format == "text")
  94                 writeFileAscii(*buffer, filename, runparams);
  95         // Linuxdoc backend
  96         else if (buffer->isLinuxDoc()) {
  97                 runparams.nice = !put_in_tempdir;
  98                 buffer->makeLinuxDocFile(filename, runparams);
  99         }
 100         // Docbook backend
 101         else if (buffer->isDocBook()) {
 102                 runparams.nice = !put_in_tempdir;
 103                 buffer->makeDocBookFile(filename, runparams);
 104         }
 105         // LaTeX backend
 106         else if (backend_format == format) {
 107                 runparams.nice = true;
 108                 buffer->makeLaTeXFile(filename, string(), runparams);
 109         } else if (contains(buffer->filePath(), ' ')) {
 110                 Alert::error(_("File name error"),
 111                            _("The directory path to the document cannot contain spaces."));
 112                 return false;
 113         } else {
 114                 runparams.nice = false;
 115                 buffer->makeLaTeXFile(filename, buffer->filePath(), runparams);
 116         }
 117
 118         string outfile_base = (put_in_tempdir)
 119                 ? filename : buffer->getLatexName(false);
 120
 121         if (!converters.convert(buffer, filename, outfile_base,
 122                                 backend_format, format, result_file))
 123                 return false;
 124
 125         if (!put_in_tempdir)
 126                 buffer->message(_("Document exported as ")
 127                                       + formats.prettyName(format)
 128                                       + _(" to file `")
 129                                       + MakeDisplayPath(result_file) +'\'');
 130         return true;
 131 }
 132
 133
 134 bool Exporter::Export(Buffer * buffer, string const & format,
 135                       bool put_in_tempdir)
 136 {
 137         string result_file;
 138         return Export(buffer, format, put_in_tempdir, result_file);
 139 }
 140
 141
 142 bool Exporter::Preview(Buffer * buffer, string const & format)
 143 {
 144         string result_file;
 145         if (!Export(buffer, format, true, result_file))
 146                 return false;
 147         return formats.view(*buffer, result_file, format);
 148 }
 149
 150
 151 bool Exporter::IsExportable(Buffer const & buffer, string const & format)
 152 {
 153         vector<string> backends = Backends(buffer);
 154         for (vector<string>::const_iterator it = backends.begin();
 155              it != backends.end(); ++it)
 156                 if (converters.isReachable(*it, format))
 157                         return true;
 158         return false;
 159 }
 160
 161
 162 vector<Format const *> const
 163 Exporter::GetExportableFormats(Buffer const & buffer, bool only_viewable)
 164 {
 165         vector<string> backends = Backends(buffer);
 166         vector<Format const *> result =
 167                 converters.getReachable(backends[0], only_viewable, true);
 168         for (vector<string>::const_iterator it = backends.begin() + 1;
 169              it != backends.end(); ++it) {
 170                 vector<Format const *>  r =
 171                         converters.getReachable(*it, only_viewable, false);
 172                 result.insert(result.end(), r.begin(), r.end());
 173         }
 174         return result;
 175 }