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ijoshsmith
/ TextTransformation.swift
Last active
July 19, 2016 04:23
Transform Morse code data model to text
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| func createMorseCodeText(from encodedMessage: EncodedMessage) -> String { | |
| let transformation = MorseTransformation( | |
| dot: ".", | |
| dash: "-", | |
| markSeparator: "", | |
| symbolSeparator: " ", | |
| termSeparator: "\n") | |
| let characters = transformation.apply(to: encodedMessage) | |
| return characters.joinWithSeparator("") | |
| } |
ijoshsmith
/ TransmissionState.swift
Last active
July 19, 2016 04:23
Transform Morse code data model to on/off states with relative durations
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| enum TransmissionState { | |
| typealias RelativeDuration = Int | |
| case On(RelativeDuration) | |
| case Off(RelativeDuration) | |
| static func createStates(from encodedMessage: EncodedMessage) | |
| -> [TransmissionState] { | |
| let transformation = MorseTransformation( | |
| dot: TransmissionState.On(1), | |
| dash: TransmissionState.On(3), |
ijoshsmith
/ MorseTransformation.swift
Created
July 19, 2016 03:59
Uses the Concealment pattern to enable transforming the Morse code data model
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| /// Converts an `EncodedMessage` to an alternate representation. | |
| struct MorseTransformation<T> { | |
| let dot, dash, markSeparator, symbolSeparator, termSeparator: T | |
| func apply(to encodedMessage: EncodedMessage) -> [T] { | |
| return encodedMessage.apply(self) | |
| } | |
| } | |
| private extension EncodedMessage { |
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