(No Subject)

[Jean-Michel.Hufflen@loria.fr (Jean-Michel Hufflen)]

   Hello, Centaur's friends!

   I need to know how to send an abstract syntax tree to emacs, as done when
users click the "Edit" button.  More precisely, I explain what I wish to do.

   At one place of my language, there is an optional feature:

	<optional_feature> ::= <feature> ;
	<optional_feature> ::= ;

   I want to allow users to change this optional feature, even if it absent in
the original text.  In this case, there is no standard way to select it and
send it to emacs.

   To do that, I defined a button "Change feature", but given the selection
path associated with this place, I did not find in the documentation which
function has to be used to send it to emacs.

   Many thanks in advance,

				   J.-M. H.