In my defense, I _did_ say it was a naive suggestion. LOL
RSL
On 7/24/07, Tom Stuart <[EMAIL PROTECTED]> wrote:
>
>
> On 24 Jul 2007, at 12:43, Russell Norris wrote:
> > I missed the point that the regex was being greedy there. I presume
> > the naive suggestion of using non-greedy matching has been tried
> > already.
>
> The general problem is more fundamental than that -- finite state
> machines (i.e. the programs encoded by regular expressions) lack the
> computational power to do unlimited parenthesis balancing -- but
> regardless, non-greedy matching will fail whenever parentheses are
> nested more than one level deep:
>
> %foo{:bar => { ... }}
>
> Here we'd match the first '{' with the first '}' (which isn't its
> partner) so it's just the opposite problem.
>
> I don't know off the top of my head whether people typically use
> nested hashes in tags, but in the general case they do.
>
> (A thousand beers to the person who rewrites Haml and Sass to use
> Ragel and a real parser.)
>
> Cheers,
> -Tom
>
>
> >
>
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