file asociations support, thanks to Jeremy Suntheimer

Slax/debian/modules/04-apps/rootcopy/usr/share/applications/leafpad.desktop

@@ -1,5 +1,11 @@
 [Desktop Entry]
 Name=Text editor
-Exec=leafpad
-Icon=editor
+Comment=Simple text editor
+Exec=leafpad %f
+Icon=leafpad
 Terminal=false
+Type=Application
+MimeType=text/plain
+Categories=GTK;Utility;TextEditor;
+Keywords=text;editor;
+InitialPreference=6