payment: note that Stripe has instituted an additional 1% fee for non-US cards

[hcoop/portal.git] / util.sig

diff --git a/util.sig b/util.sig
index 3a03953..f8c38d4 100644 (file)
--- a/util.sig
+++ b/util.sig
@@ -1,8 +1,41 @@
 signature UTIL =
 sig
+    val init : unit -> unit
+
+    datatype 'a flat_element =
+            BEGIN
+          | END
+          | ITEM of 'a
+    type 'a flat_tree = 'a flat_element list
+
     val printInt : int -> unit
     val printReal : real -> unit
 
     val id : 'a -> 'a
     val makeSet : ('a -> string) -> 'a list -> string
-end
\ No newline at end of file
+    val neg : real -> real
+    val add : real * real -> real
+    val sub : real * real -> real
+    val mult : int * real -> real
+
+    val lt : real * real -> bool
+    val ge : real * real -> bool
+
+    val validHost : string -> bool
+    val validDomain : string -> bool
+    val validEmail : string -> bool
+    val whoisUrl : string -> string
+
+    val randomPassword : unit -> string
+
+    val domainDir : string -> string
+
+    val readFile : string -> string
+
+    val mem : ''a * ''a list -> bool
+
+    val allLower : string -> string
+    val normEmail : string -> string
+
+    val diffFromNow : Time.time -> string
+end