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

[Terence Parr]

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
--
Professor Comp. Sci., University of San Francisco
Creator, ANTLR Parser Generator, http://www.antlr.org
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