system_salt_modify_intersperse

Takes characters alternately between the existing salt and the first argument.

Arguments

• bytestring: Indicates what value should be interspersed with the current salt.
• number: Indicates how many characters of the current salt to take before adding a character of additional salt.
• number: Indicates how many characters of the current salt to skip before counting characters for the second argument. Consider it an offset.
• Optional salt leftover policy: Indicates what the code should do in the case where there is salt remaining after the original salt is exhausted. The default policy is system_salt_leftover_discard.