[PATCH] fix (a|)* and friends

[Ulrich Drepper]

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Paolo Bonzini wrote:
> This patch is more complex than the old version because it handles inner
> subexpressions like (a|())* where \2 must not be set.  [...]

Thanks, looks good, I've applied it.  The patch introduced one new
memory leak, though.  I've made appropriate changes.

- -- 
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖
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