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- Subject: Re: Reserved Words
- From: Björn De Meyer <bjorn.demeyer@...>
- Date: Thu, 02 Jan 2003 13:44:16 +0100
Peter Hill wrote:
> Hmm, I'm not sure what I think of reserved words in Lua.
> which is syntactic sugar for
> Apparently this only applies for identifiers, not reserved words, so
> is illegal, and NOT the same as
I do not consider this a problem. A keyword is a keyword.
In most programming languages, keywords cannot be used
for variable names nor for record field names. The a.b
notation is syntactic sugar that allows for a record-like
(struct-like) access to tables. In languages used as C,
structs which contain keyword names are also illegal.
Also, this has the solution of the original,
non sugared notation. IMO, a keyword is always a keyword,
unless it's present in a string, of course.
> Lexically wise, one could simply defer the word->reserved-word
> conversion to a later stage.
Hmmm.... that would needlessly complicate things, not to
mention that to me, it would seem confusing. A keyword is
a keyword. The idea is "use keywords only when
you want to implement their key function". That's something
that someone who learns a programming language should be
able to rely on.
"No one knows true heroes, for they speak not of their greatness." --
Björn De Meyer