This is server API (go to client)

Module Eliom_pervasives.​String

module String : sig..end

include String
val basic_sep : char -> string -> string * string
val sep : char -> string -> string * string
val split : ?multisep:bool -> char -> string -> string list
val first_diff : string -> string -> int -> int -> int
val may_append : string -> sep:string -> string -> string
val may_concat : string -> sep:string -> string -> string
val make_cryptographic_safe : unit -> string
module Table : 
  Map.Swith type key = string
and type 'a t = 'a Ocsigen_pervasives.String.Table.t
module Set : 
  Set.Swith type elt = string
and type t = Ocsigen_pervasives.String.Set.t