StringPadding.swift

extension String {
	func padding(leftTo paddedLength: Int, withPad pad: String = " ", startingAt padStart: Int = 0) -> String
	{
		if count < paddedLength {
			let rightPadded = padding(toLength: max(count, paddedLength), withPad: pad, startingAt: padStart)
			return "".padding(toLength: paddedLength, withPad: rightPadded, startingAt: count % paddedLength)
		} else {
			return self
		}
	}

	func padding(rightTo paddedLength: Int, withPad pad: String = " ", startingAt padStart: Int = 0) -> String
	{
		if count < paddedLength {
			return padding(toLength: paddedLength, withPad: pad, startingAt: padStart)
		} else {
			return self
		}
	}

	func padding(sidesTo paddedLength: Int, withPad pad: String = " ", startingAt padStart: Int = 0) -> String
	{
		if count < paddedLength {
			let rightPadded = padding(toLength: max(count, paddedLength), withPad: pad, startingAt: padStart)
			return "".padding(toLength: paddedLength, withPad: rightPadded, startingAt: (paddedLength + count) / 2 % paddedLength)
		} else {
			return self
		}
	}
}