vcsn::rat::location location
Pairs of positions in a file/stream.
::vcsn::direction direction
Direction for proper on automata.
value_impl< detail::label_tag > label
vcsn::rat::position position
Position in a file/stream.
::vcsn::rat::identities identities
Sets of identities on expressions.
An expressionset can implement several different sets of identities on expressions.