On Sat, 2007-07-14 at 21:12 +0200, Emmanuel Onzon wrote:

> Each action that is added by the user is numbered increasingly,
> and instead of just returning an s-expression it also returns
> its number.
> Then you can write a merge function that selects the AST that is
> coupled with the highest number, this ensures that you keep the
> tree that was built by the most recent action.

But I'd need to write it for every non-terminal, including
user defined ones .. hmm .. it's the same function for all
of them of course.

-- 
John Skaller <skaller at users dot sf dot net>
Felix, successor to C++: http://felix.sf.net

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