String

struct String

Extensions to the String type to enable parsing chord symbols in a functional style.

  • Separate a chord symbol’s root from its suffix in a string and return both in a SeparatedChordSymbol instance.

    Declaration

    Swift

    public func separateRoot() -> SeparatedChordSymbol?

  • Map a string containing a pitch-letter to a pitch-class.

    Declaration

    Swift

    public func mapPitch() -> PitchClass?

  • Map a string containing a pitch-letter to a PitchLetter instance.

    Declaration

    Swift

    public func mapPitchToLetter() -> PitchLetter?

  • Parse a chord symbol’s suffix and get a pitch-class set from it as it would apply to C (pitch-class 0). E.g. m7.mapSuffix().

    Declaration

    Swift

    public func mapSuffix() -> PCSet?

  • Helper function to get substrings using a JavaScript-like interface.

    Declaration

    Swift

    public func substring(_ fromIndex: Int, _ toIndex: Int) -> String