[Date Prev][Date Next][Thread Prev][Thread Next]
- Subject: RE: I'm totally baffled.
- From: Quinn Tyler Jackson <quinn-j@...>
- Date: Fri, 12 Nov 2004 00:52:22 -0800
> > print((function(y) return y+10; end) (10));
> > Is there a reason the () around the function object are
> required? To put it
> > another way -- what is the precedence of function() end in
> relation to the
> > call operator?
> LOL, you're finding some good ones today.
> I don't actually recall seeing a grammar diagram nor BNF for Lua anywhere.
There's a grammar for it in the reference manual:
However, I've written a $-grammar for it that captures some of the more
subtle nuances of the language in practice.
> Btw, did my post about $-grammars make any sense at all? I wasn't at the
> Grammar Forge site for long, just scanned some docs and diagrams briefly.
The grammar proper says that a function call requires a prefixexp, which
explains why the parentheses are required, at least syntactically, but I'm
wondering why the parentheses are strictly required, from a language
As for the statement:
I'm still completely and utterly baffled as for where to find that in the
grammar specification. ;-)
Quinn Tyler Jackson