[Patch] regex bracket expression implementaion

[Paolo Carlini]

Hi,

On 08/01/2013 04:59 PM, Tim Shen wrote:
> Fully tested under x86_64. (make bootstrap && make -k check).
>
> Next, I'll try to refactor _Grep_matcher using templates instead of
> virtual functions, to make implementing back-reference easier.
If nobody has further comments over the next day or so, patch is Ok with me.

Thanks,
Paolo.

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PS: I think it would be nice if from to time you could provide a rough 
estimate of the amount of work done vs the work still needed; major 
milestones; etc. Just to have an idea.