Module Substr

module Substr: sig .. end

Sub-Strings

val contains_sub : string -> string -> bool

contains_sub s sub returns true if the string s contains the sub-string sub.

val sub_index : string -> string -> int

sub_index s sub returns the first index of the sub-string sub in s, or -1 if not found.

val count_sub : string -> string -> int

count_sub s sub returns how many times sub appears in s.

val sub_indices : string -> string -> int list

sub_indices s sub returns a list of all the indices where the sub-string sub appears in s.