[cmake-developers] slow regex implementation in RegularExpression

[Bill Hoffman]

On 11/14/2011 6:08 PM, Pau Garcia i Quiles wrote:
> Bill,
>
> I think the current incarnation of regexps in CMake should be kept for
> compatibility reasons.
>
Yes, of course.

> Adding PCRE is not difficult, just time consuming. The implementation
> I'd do would be an additional abstraction layer:
> - For the current BRE implementation, it would be a 1:1 call match
> - For the PCRE implementation, it would keep match status, count,
> next/previous iterators, etc.
>
So, for this case I would be interested to here from Alex to see if 
swapping out the regex will fix the ctest performance issue.  It is a 
nice isolated place to give PCRE a try.

-Bill