[antlr-interest] #( root children ) syntax change proposal?

[Arnar Birgisson]

I agree, ^ is (to me) more appropriate as "root" than #.

vote +1

Arnar

> -----Original Message-----
> From: Terence Parr [mailto:parrt at cs.usfca.edu] 
> Sent: 18. nóvember 2003 19:21
> To: antlr-interest at yahoogroups.com
> Subject: [antlr-interest] #( root children ) syntax change proposal?
> 
> 
> Howdy folks,
> 
> The #(...) notation derives from wanting to use parens like LISP but 
> not wanting the ambiguity with (... | ...) alternative 
> subrules. The # 
> was the only character left in ASCII for me to use ;)  I have always 
> not liked it, but now it's ingrained.  That said, I've been 
> thinking of 
> changing it for ANTLR 3 into
> 
> ^(root c1 ... cn)
> 
> in tree parsers and tree construction actions.  There MAY be some 
> ambiguity with the ^ suffix operator, but I think we might 
> wanna try it 
> out.
> 
> Anybody have any thoughts?  I like it as it's more intuitive 
> that that 
> is a tree ;)  # is random.
> 
> Ter
> --
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