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-rw-r--r--library/libnames.ml4
1 files changed, 4 insertions, 0 deletions
diff --git a/library/libnames.ml b/library/libnames.ml
index b7ec0c223..d4cc60719 100644
--- a/library/libnames.ml
+++ b/library/libnames.ml
@@ -78,6 +78,10 @@ let dirpath_prefix p = match repr_dirpath p with
let is_dirpath_prefix_of d1 d2 =
list_prefix_of (List.rev (repr_dirpath d1)) (List.rev (repr_dirpath d2))
+let chop_dirpath n d =
+ let d1,d2 = list_chop n (List.rev (repr_dirpath d)) in
+ make_dirpath (List.rev d1), make_dirpath (List.rev d2)
+
(* To know how qualified a name should be to be understood in the current env*)
let add_dirpath_prefix id d = make_dirpath (repr_dirpath d @ [id])