1.1 --- a/lemon/lgf_reader.h Thu Jul 10 16:05:56 2008 +0200
1.2 +++ b/lemon/lgf_reader.h Thu Jul 10 16:13:50 2008 +0200
1.3 @@ -1226,6 +1226,12 @@
1.4 /// It can be used almost the same way as \c DigraphReader.
1.5 /// The only difference is that this class can handle edges and
1.6 /// edge maps as well as arcs and arc maps.
1.7 + ///
1.8 + /// The columns in the \c \@edges (or \c \@arcs) section are the
1.9 + /// edge maps. However, if there are two maps with the same name
1.10 + /// prefixed with \c '+' and \c '-', then these can be read into an
1.11 + /// arc map. Similarly, an attribute can be read into an arc, if
1.12 + /// it's value is an edge label prefixed with \c '+' or \c '-'.
1.13 template <typename _Graph>
1.14 class GraphReader {
1.15 public: