Re: [PATCH] Unicode Lisp reader escapes

[Juri Linkov]

>     Are there reasons not to use Perl's notation for Unicode characters,
>     i.e. "\x{...}"?  The Unicode code for the desired character,
>     is placed in the braces in hexadecimal, and has no fixed length.
>     Examples: "\x{DF}", "\x{0448}", "\x{001D0ED}".
>
> We could support this form, as well as \u and \U for compatibility
> with other languages.

Support for \u and \U in Emacs Lisp would be good since other _Lisp_ languages
support \uXXXX and \UXXXXXXXX as well.  But other Lisp languages support
also Lisp notation for Unicode characters.  I think Emacs should support
it too.  In this notation Unicode characters are written as #\u3042 or
#\u0002a6b2 with the leading hash mark.

Also it would be good to support a syntax for named Unicode characters.
Common Lisp has the syntax #\euro_sign, and Perl - \N{EURO SIGN}.

-- 
Juri Linkov
http://www.jurta.org/emacs/