Am I overcomplicating String.Index?

[tera]

If you don't mind slow index operations (including accidentally quadratic algorithms in case you, say, go through each character of a string and do a subscript with integer index) then consider this simple wrapper. This might be ok for tests and short strings, just avoid using it in real apps in production.

@tera

let text = "hello"
print(text[slow: 0..<2]) // "he"
print(text[slow: 0...2]) // "hel"
print(text[slow: 1...]) // "ello"
print(text[slow: ..<2]) // "he"
print(text[slow: ...2]) // "hel"