isXIDStart
A Boolean value indicating whether the scalar is one which is recommended to be allowed to appear in a starting position in a programming language identifier, with adjustments made for NFKC normalized form.
Declaration
var isXIDStart: Bool { get }Discussion
The set of scalars [:XID_Start:] closes the set [:ID_Start:] under NFKC normalization by removing any scalars whose normalized form is not of the form [:ID_Start:] [:ID_Continue:]*.
This property corresponds to the “XID_Start” property in the Unicode Standard.