Pitch(Foundation): String Encoding Names

[xwu (Xiaodi Wu)]

@YOCKOW

@tinaliu

Would it be more straightforward to just name the arguments as

public init?(ianaName: String)
public init?(whatwgName: String)

That's certainly easy to understand.
(One possible alternative could be ianaName↔︎ianaCharsetName, whatwgName↔︎whatwgEncodingName...redundant?)

I would suggest even shorter labels:

public init?(iana: String)
public init?(whatwg: String)

There’s no reason here to repeat “encoding” (or “charset” in IANA parlance, which at worst could be confused with CharacterSet) given the type being initialized, and it’s not plausible for the sole string argument to be anything but the name of the encoding.