if b <= 0 then b = 0 else
list_exists compare tl
+let rec list_count s c = function
+ | [] -> s, c
+ | (b, _)::tl -> list_count (s + if b then 1 else 0) (succ c) tl
+
let string_of_version v =
String.concat "." (List.map string_of_int v)
ET.r = []; ET.s = []; ET.t = []; ET.w = [];
}
+let string_of_pointer = string_of_version
+
let pointer_of_string = version_of_string
+let list_visit before each after string_of p l =
+ let ptr p = string_of_pointer (List.rev p) in
+ let rec aux i = function
+ | [] -> ()
+ | (b, x)::tl ->
+ each (ptr (i::p)) b (string_of x);
+ aux (succ i) tl
+ in
+ let s, c = list_count 0 0 l in
+ let count = Printf.sprintf "%u/%u" s c in
+ before (ptr p) count;
+ aux 0 l;
+ after ()
+
let string_of_error = function
| ET.EWrongExt x ->
Printf.sprintf "unknown input file type %S" x