# from Nicholas Clark
# on Sunday 06 April 2008 09:33:
>> reserved (and it's a parse error to use an unknown lower-case key).
>> Are there any strange Unicode issues where we might get confused
>> about what is upper and lower case?)
>
>I believe that there are code points which would be considered word
>characters but do not have distinct upper and lower case forms (or by
>implication title case either), but I hope that the good folks of
>perl-unicode will correct me if I'm wrong.
Can we just say that reserved words are =~ m/^[a-z_]+$/ ?
(perhaps allow non-first numbers too?) /^[a-z][a-z0-9_]*$/ ?
Yes, that limits reserved words to non-unicode, but eliminates any
ambiguity about the convention.
--Eric
--
"Beware of bugs in the above code; I have only proved it correct, not
tried it."
--Donald Knuth
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