pce_prolog_xref.pl -- XPCE plugin for library(prolog_xref)

This library facilitates using PceEmacs editors as sources for the Prolog cross referencer.

 prolog:xref_source_identifier(+Object, -Ref)[multifile]

The cross-referencer runs faster if the reference is an indexable term. Therefore we strip the XPCE @ from the object.

 prolog:xref_source_directory(+Source, -Dir)[multifile]

Find the directory of a PceEmacs buffer to resolve relative paths.

 prolog:xref_open_source(+Source, -Stream)[multifile]

Open the PceEmacs as a Prolog stream.