summaryrefslogtreecommitdiffstats
path: root/stdlib/arg.ml
diff options
context:
space:
mode:
Diffstat (limited to 'stdlib/arg.ml')
-rw-r--r--stdlib/arg.ml12
1 files changed, 8 insertions, 4 deletions
diff --git a/stdlib/arg.ml b/stdlib/arg.ml
index 0d214b7a9..3cd16739f 100644
--- a/stdlib/arg.ml
+++ b/stdlib/arg.ml
@@ -12,10 +12,12 @@
(* $Id$ *)
type spec =
- String of (string -> unit)
- | Int of (int -> unit)
- | Unit of (unit -> unit)
- | Float of (float -> unit)
+ Unit of (unit -> unit) (* Call the function with no argument *)
+ | Set of bool ref (* Set the reference to true *)
+ | Clear of bool ref (* Set the reference to false *)
+ | String of (string -> unit) (* Call the function with a string argument *)
+ | Int of (int -> unit) (* Call the function with an int argument *)
+ | Float of (float -> unit) (* Call the function with a float argument *)
exception Bad of string
@@ -59,6 +61,8 @@ let parse speclist anonfun =
try
match (action, l) with
(Unit f, l) -> f (); p l
+ | (Set r, l) -> r := true; p l
+ | (Clear r, l) -> r := false; p l
| (String f, arg::t) -> f arg; p t
| (Int f, arg::t) ->
begin try f (int_of_string arg)