doc_util.pl -- PlDoc utilities

insert_alias(+Path0, -Path) is det: Translate a native path to an aliased path. Path aliases are defined by path_alias/2. Aliased paths are re-translated into native form using expand_alias/2.
expand_alias(+Path0, -Path) is det: Translate an aliased path to a native path.
path_alias(?Alias, ?Path) is nondet[private]: True if Alias: is an alias for Path. This is used to rewrite paths below the SWI-Prolog home to give them shorter and fixed names.
ensure_slash_end(+Dir, -DirSlash) is det: Ensure Dir ends with a /.
atom_pi(+Atom, -PI) is det: Translate an external predicate indicator representated as an atom into a predicate indicator term. If Atom contains <module>:, PI is qialified. If no arity is provided it is a term Name/_, i.e., with unbound arity.