[antlr-interest] [3.1 C] Mulivalue Attribute is NULL in action after matching rule

[Christian Schladetsch]

Hello,

The assertion fires on input "42" using antlr-2008-04-09.10:

grammar Fail;
options { language=C; }
@preincludes { #include <assert.h> }
sequence  : num += (NUMBER+) { assert($num != 0); } ;
NUMBER  :  ('0'..'9')+ ;

Is this correct behavior?

Regards,
Christian.
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