Re: PCRE JIT stack size limit

On 23 July 2015 at 11:47, Christoph Becker <cmbecker69@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