- added support for contexts (terms with holes)

[helm.git] / helm / ocaml / cic / cicUtil.mli

diff --git a/helm/ocaml/cic/cicUtil.mli b/helm/ocaml/cic/cicUtil.mli
index ba9bab63d12d7997ed6b252ae6f3edd6a211269e..cfd2d813a64e809147aa884c3809af306edce0c3 100644 (file)
--- a/helm/ocaml/cic/cicUtil.mli
+++ b/helm/ocaml/cic/cicUtil.mli
@@ -39,3 +39,25 @@ val is_meta_closed : Cic.term -> bool
   (** @raise UriManager.IllFormedUri *)
 val term_of_uri: string -> Cic.term
 
+  (** packing/unpacking of several terms into a single one *)
+val pack: Cic.term list -> Cic.term
+val unpack: Cic.term -> Cic.term list
+
+  (** @raise Failure "not enough prods" *)
+val strip_prods: int -> Cic.term -> Cic.term
+
+(** {2 Contexts}
+ * A context is a Cic term in which Cic.Implicit terms annotated with `Hole
+ * appears *)
+
+(** create a context from a term and a list of subterm.
+* @param equality equality function used while walking the term. Defaults to
+* physical equality (==) *)
+val context_of:
+  ?equality:(Cic.term -> Cic.term -> bool) -> term:Cic.term -> Cic.term list ->
+    Cic.term
+
+(** select all subterms of a given term matching a given context (i.e. subtrees
+* rooted at context's holes *)
+val select: term:Cic.term -> context:Cic.term -> Cic.term list
+