public bool ReadIdentifier(ITokenResult result = null)
{
// perf: using Character.IsIdentifierStart instead of x => Character.IsIdentifierStart(x) induces some allocations
return(ReadFirstThenOthers(static x => Character.IsIdentifierStart(x), static x => Character.IsIdentifierPart(x), result));
public bool ReadFirstThenOthers(Func <char, bool> first, Func <char, bool> other, ITokenResult result = null)
{
if (!first(Cursor.Current))
{
result?.Fail();
return(false);
}
var start = Cursor.Position;
// At this point we have an identifier, read while it's an identifier part.
Cursor.Advance();
ReadWhile(other, null);
result?.Succeed(Buffer, start, Cursor.Position);
return(true);
}
