Re: vlan handling

[Shoham peller <shoham_peller () yahoo com>]

Hi,

I'm having problems implementing it. The problem is the action
    precedence bison does.

For example:
"vlan or vlan"

I've written code that makes the "or" keyword to restore the
    off_linktype so that the second "vlan" keyword uses off_linktype
    that is reseted.

But the action precedence that bison does is:
1. Compute the left side of the or
2. Compute the right side of the or
3. "or" between them

In 1 and 2, the off_linktype is incremented, which makes the right
    side "vlan" to use off_linktype that was already incremented.
It's only in 3 that the off_linktype is restored to be the value
    before the 2 increments happened in 1 and 2.


Can anyone suggest a solution to this problem?

Thanks,
    Shoham
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