Module type Validated_string_intf.S

type t
val to_string : t -> string

Given that t = string in the implementation, this function is just the identity.

val of_string : string -> (t, [ `Msg of string ]) Stdlib.Result.t

of_string str returns Ok str if X.invariant str = true, and an error otherwise. This is meant to be used to validate untrusted entries.

val v : string -> t

v str is a convenient wrapper to build a t or raise Invalid_argument. This is typically handy for applying on trusted literals.