On 23 July 2015 at 11:47, Christoph Becker <cmbecke...@gmx.de> wrote:
<snip great explanation, thanks>
> Therefore I tend to prefer a new ini setting (say, pcre.jitstack_limit).
>  That would mean, however, to add yet another ini setting, of which
> there are already so many.

I'm not a big fan of that, although it's at least in the spirit of
what configuration settings are meant to be used for.

What if we added the PCRE_ERROR_JIT_STACKLIMIT error constant to those
exposed to userland so that it's more easily noticed via
preg_last_error(), and adding a modifier that can be used to disable
the JIT on a per-pattern basis (by setting PCRE_NO_START_OPTIMIZE,
which admittedly disables other stuff too, but at least the regex will
run)? At least then users could check the error when the regex fails
and re-run the regex without the JIT if they chose to.

How likely is the average user to hit this, do you think?

Adam

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