Older perls can crash if the the regexp engine is called again from (?{...}). But this is not an older perl, and the regexp is not used again.
These kind of problems are the reason why (?{...}) is still experimental.
In reply to Re: (?{...code..}) regex construct causing panic: top_env in 5.8.2
by ambrus
in thread (?{...code..}) regex construct causing panic: top_env in 5.8.2
by leriksen
| For: | Use: | ||
| & | & | ||
| < | < | ||
| > | > | ||
| [ | [ | ||
| ] | ] |