1. new syntax for patterns:

[helm.git] / helm / ocaml / tactics / proofEngineHelpers.mli

diff --git a/helm/ocaml/tactics/proofEngineHelpers.mli b/helm/ocaml/tactics/proofEngineHelpers.mli
index 5a4f145f995a07c1130f0b05460178fa2dd59f60..c11ad6ecaac179e63441525e07ea02d52229d564 100644 (file)
--- a/helm/ocaml/tactics/proofEngineHelpers.mli
+++ b/helm/ocaml/tactics/proofEngineHelpers.mli
@@ -23,6 +23,8 @@
  * http://cs.unibo.it/helm/.
  *)
 
+exception Bad_pattern of string
+
 (* Returns the first meta whose number is above the *)
 (* number of the higher meta.                       *)
 val new_meta_of_proof : proof:ProofEngineTypes.proof -> int
@@ -35,3 +37,29 @@ val subst_meta_and_metasenv_in_proof :
   ProofEngineTypes.proof ->
   int -> (Cic.term -> Cic.term) -> Cic.metasenv ->
   ProofEngineTypes.proof * Cic.metasenv
+
+(* returns the list of goals that are in newmetasenv and were not in
+   oldmetasenv *)
+val compare_metasenvs :
+  oldmetasenv:Cic.metasenv -> newmetasenv:Cic.metasenv -> int list
+
+
+(** { Patterns }
+ * A pattern is a Cic term in which Cic.Implicit terms annotated with `Hole
+ * appears *)
+
+(** create a pattern from a term and a list of subterm.
+* @param equality equality function used while walking the term. Defaults to
+* physical equality (==) *)
+val pattern_of:
+  ?equality:(Cic.term -> Cic.term -> bool) -> term:Cic.term -> Cic.term list ->
+    Cic.term
+
+(** select context term (what,where)
+* select all subterms of [term] matching [what] in positions rooted at the holes
+* of the pattern [where]. [context] is the context of [term]. It returns
+* the list of the matched terms (that can be compared using physical equality)
+* together with their contexts. *)
+val select:
+ context:Cic.context -> term:Cic.term -> pattern:(Cic.term option * Cic.term) ->
+  (Cic.context * Cic.term) list