Filters/FilterScribus.cs

   1 //
   2 // FilterScribus.cs
   3 //
   4 // Copyright (C) 2006 Alexander Macdonald <alex@alexmac.cc>
   5 //
   6
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining a
   9 // copy of this software and associated documentation files (the "Software"),
  10 // to deal in the Software without restriction, including without limitation
  11 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12 // and/or sell copies of the Software, and to permit persons to whom the
  13 // Software is furnished to do so, subject to the following conditions:
  14 //
  15 // The above copyright notice and this permission notice shall be included in
  16 // all copies or substantial portions of the Software.
  17 //
  18 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  24 // DEALINGS IN THE SOFTWARE.
  25 //
  26
  27 using System;
  28 using System.IO;
  29 using System.Xml;
  30 using System.Text;
  31
  32 using Beagle.Util;
  33 using Beagle.Daemon;
  34
  35 namespace Beagle.Filters {
  36         public class FilterScribus : Beagle.Daemon.Filter {
  37                 // These two arrays contain the mapping from attributes in a scribus
  38                 // file to actual beagle property names
  39                 private static string[] scribus_attributes = { "TITLE", "KEYWORDS", "COMMENTS", "DOCSOURCE", "DOCCONTRIB", "DOCRELATION", "DOCIDENT", "PUBLISHER", "AUTHOR", "DOCCOVER", "DOCRIGHTS" };
  40                 private static string[] scribus_properties = { "dc:title", "dc:keywords", "dc:description", "fixme:source", "dc:contributers", "fixme:relation", "dc:identifier", "dc:publisher", "dc:author", "fixme:coverage", "dc:rights" };
  41
  42                 private StringBuilder sb = new StringBuilder();
  43
  44                 public FilterScribus ()
  45                 {
  46                         AddSupportedFlavor (FilterFlavor.NewFromMimeType ("application/x-scribus"));
  47                         AddSupportedFlavor (FilterFlavor.NewFromExtension (".sla"));
  48                 }
  49
  50                 override protected void DoPullProperties ()
  51                 {
  52                         XmlTextReader reader = new XmlTextReader (Stream);
  53
  54                         string text = String.Empty;
  55                         int pagecount = 0;
  56
  57                         bool join_text_mode = false;
  58
  59                         try {
  60                                 while (reader.Read ()) {
  61                                         switch (reader.NodeType) {
  62                                         case XmlNodeType.Element:
  63                                                 switch (reader.LocalName) {
  64                                                 case "SCRIBUSUTF8":
  65                                                         join_text_mode = true;
  66                                                         AddProperty (Property.New ("fixme:scribus-version" , reader.GetAttribute("Version")));
  67                                                         break;
  68                                                 case "SCRIBUSUTF8NEW":
  69                                                         AddProperty (Property.New ("fixme:scribus-version" , reader.GetAttribute("Version")));
  70                                                         break;
  71                                                 case "DOCUMENT":
  72                                                         for (int i=0; i<scribus_attributes.Length; i++) {
  73                                                                 text = reader.GetAttribute(scribus_attributes[i]);
  74                                                                 AddProperty (Property.New (scribus_properties[i] , text));
  75                                                         }
  76
  77                                                         // treat the DOCDATE attribute in a special way
  78                                                         text = reader.GetAttribute("DOCDATE");
  79                                                         if (text != null) {
  80                                                                 try {
  81                                                                         AddProperty (Property.NewDate ("dc:date", System.Convert.ToDateTime (text)));
  82                                                                 } catch (FormatException) {
  83                                                                         AddProperty (Property.New ("dc:date", text));
  84                                                                 }
  85                                                         }
  86                                                         break;
  87                                                 case "ITEXT":
  88                                                         text = reader.GetAttribute("CH");
  89                                                         if (text == null)
  90                                                                 break;
  91
  92                                                         if (join_text_mode) {
  93                                                                 sb.Append(text);
  94                                                         } else {
  95                                                                 AppendText (text);
  96                                                                 AppendStructuralBreak ();
  97                                                         }
  98                                                         break;
  99                                                 case "PAGE":
 100                                                         pagecount++;
 101                                                         break;
 102                                                 }
 103                                                 break;
 104                                         case XmlNodeType.Comment:
 105                                                 AppendText (reader.Value.Trim ());
 106                                                 AppendStructuralBreak ();
 107                                                 break;
 108                                         }
 109                                 }
 110
 111                                 AddProperty (Property.New ("fixme:pagecount", pagecount.ToString ()));
 112
 113                                 if (join_text_mode)
 114                                         AppendText (sb.ToString());
 115
 116                                 Finished ();
 117                         } catch (System.Xml.XmlException e) {
 118                                 Logger.Log.Error ("Error parsing xml file {0}", FileInfo.FullName);
 119                                 Logger.Log.Debug (e);
 120                                 Error ();
 121                         }
 122                 }
 123         }
 124 }