Swift

[J. Leslie Turriff]

On Wednesday 04 June 2014 10:53:59 Shawn Steele wrote:
> I’m sort of confused why Unicode would be a big deal.  C# & other languages
> have allowed unicode letters in identifiers for years, so readable strings
> should be possible in almost any language.
>
> It’s a bit cute to include emoji, but I’m not sure how practical it is.  It
> also makes me wonder how they came up with the list, I presume control
> codes aren’t allowed?  Or alternate whitespace?  I assume they use some
> Unicode Categories to figure out the permitted set?
>
> I rarely see non-Latin code in practice though, but of course I’m a native
> English speaker.
>
> -Shawn
	What I find interesting is that (with the possible exception of Ada) I don't 
think that any of the commonly used languages allow for the use of Unicode 
characters for non- user-defined tokens (i.e. reserved words, etc.).
	I'm working on a parser for the Rexx language that will allow all tokens to 
be recognized using the default (or a user-specified) locale, not just the 
user-defined tokens.  It will also allow various single-character operators 
equivalent to the multiple-character ones defined in the current language 
standard (e.g. '≠' for '¬=', '<>' or  '\=', '≤' for '<=', '≥' for '>=', 
etc.).

Leslie
-- 
"Disobedience is the true foundation of liberty. The obedient must be 
slaves." --Henry David Thoreau