[antlr-interest] RewriteEmptyStreamException when changing from quoted string to token?
Jon Schewe
jpschewe at mtu.net
Mon Jan 21 05:37:28 PST 2008
David Holroyd wrote:
> I suspect RewriteEmptyStreamException is the result when the rewrite
> tries to insert one of the captured PRODUCTs, but the parse didn't
> capture one (because there was an 'atom' with no '*', I guess).
>
>
> Here's another idea that I didn't test :)
>
> multExpr[boolean negate]
> : a+=atom (a+=multHelp)* -> {negate}? ^(PRODUCT ^(NUMBER DOUBLE["-1"]) $a)
> -> ^(PRODUCT $a)
> ;
>
> multHelp
> : PRODUCT atom -> atom
>
>
>
Thanks, that took care of it. Now on to debugging other parts of the
parser.
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Jon Schewe | http://mtu.net/~jpschewe
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