Procs

proc encode[T](s: openArray[T]; lineLen = 75; newLine = "\x0D\x0A"): string

encodes s into base64 representation. After lineLen characters, a newline is added.

proc encode(s: string; lineLen = 75; newLine = "\x0D\x0A"): string {.raises: [], 
    tags: [].}

encodes s into base64 representation. After lineLen characters, a newline is added.

proc decode(s: string): string {.raises: [], tags: [].}

decodes a string in base64 representation back into its original form. Whitespace is skipped.