* http://cs.unibo.it/helm/.
*)
-exception Bad_pattern of string
+exception Bad_pattern of string Lazy.t
(* Returns the first meta whose number is above the *)
(* number of the higher meta. *)
* 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 subterms.
+* the pattern is granted to have a ? for every subterm that has no selected
+* subterms
+* @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 metasenv conjecture pattern
* select all subterms of [conjecture] matching [pattern].
* It returns the set of matched terms (that can be compared using physical
* subterms of the conclusion with their context. Note: in the result the list
* of hypotheses * has an entry for each entry in the context and in the same
* order. Of course the list of terms (with their context) associated to one
-* hypothesis may be empty. *)
+* hypothesis may be empty.
+*
+* @raise Bad_pattern
+* *)
val select:
metasenv:Cic.metasenv ->
+ ugraph:CicUniv.universe_graph ->
conjecture:Cic.conjecture ->
- pattern:ProofEngineTypes.pattern ->
+ pattern:ProofEngineTypes.lazy_pattern ->
+ Cic.substitution * Cic.metasenv * CicUniv.universe_graph *
[ `Decl of (Cic.context * Cic.term) list
| `Def of (Cic.context * Cic.term) list * (Cic.context * Cic.term) list option
] option list *
(Cic.context * Cic.term) list
+
+(** locate_in_term equality what where context
+* [what] must match a subterm of [where] according to [equality]
+* It returns the matched terms together with their contexts in [where]
+* [equality] defaults to physical equality
+* [context] must be the context of [where]
+*)
+val locate_in_term:
+ ?equality:(Cic.context -> Cic.term -> Cic.term -> bool) ->
+ Cic.term -> where:Cic.term -> Cic.context -> (Cic.context * Cic.term) list
+
+(** locate_in_conjecture equality what where context
+* [what] must match a subterm of [where] according to [equality]
+* It returns the matched terms together with their contexts in [where]
+* [equality] defaults to physical equality
+* [context] must be the context of [where]
+*)
+val locate_in_conjecture:
+ ?equality:(Cic.context -> Cic.term -> Cic.term -> bool) ->
+ Cic.term -> Cic.conjecture -> (Cic.context * Cic.term) list
+
+(* saturate_term newmeta metasenv context ty goal_arity *)
+(* Given a type [ty] (a backbone), it returns its suffix of length *)
+(* [goal_arity] head and a new metasenv in which there is new a META for each *)
+(* hypothesis, a list of arguments for the new applications and the index of *)
+(* the last new META introduced. The nth argument in the list of arguments is *)
+(* just the nth new META. *)
+val saturate_term:
+ int -> Cic.metasenv -> Cic.context -> Cic.term -> int ->
+ Cic.term * Cic.metasenv * Cic.term list * int
+
+(* returns the index and the type of a premise in a context *)
+val lookup_type: Cic.metasenv -> Cic.context -> string -> int * Cic.term
+