[Please keep the cc to Help-Bison so others can follow.
It is simple to generate list of arbitrary length on both sides, and
check that they agree in the actions. The grammatical capabilities are
rather limited, so extend it by resolving in the actions.
Hans
On 8 Jun 2009, at 01:26, Max cs wrote:
Thanks for your comments, but I did not see any different from my
Grammar? How to guarantee the number of elements in the two sides of
'=' are the same?
i.e. a,b,c = 1,2,3 is accepted but not a,b,c = 1,2,3,4 or a,b,c =
1 ,2
Thanks
max
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