[antlr-interest] Consumed input in V3
David Holroyd
dave at badgers-in-foil.co.uk
Fri Mar 2 16:10:24 PST 2007
In addition to Jim's suggestion...
On Fri, Mar 02, 2007 at 12:19:56PM -0500, Mark Bednarczyk wrote:
> rule : i1=Identifier
> ('.' i2=Identifier)*
> -> ^(ID $i1 ($i2)*)
> ;
>
> Output is from the CommonTree.toStringTree() call.
>
> input = "com.slytechs.def"
> output = (ID com def)
Each time around the (..)* overwrites 'i2', so you only see the last
subtree matched.
ANTLR will automatically collect lists of subtrees for the distinct
names on the l.h.s. of the rewrite; to use them, drop the labels and use
the names directly on the r.h.s.,
rule : Identifier
('.' Identifier)*
-> ^(ID Identifier+)
;
ta,
dave
--
http://david.holroyd.me.uk/
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