I'm sure there are people who do take this as an invitation to write their own "just cause", but the practical reason for a custom regex engine would be the need to emulate the behavior of some other regex syntax. Bash, PHP, Java, various flavors of the grep command, all have their own slight regular expression nuances.

For example, a person might need to port a large amount of code from PHP to Perl. Rather that study each and every regex in that code, it might make more sense to port the code but leave the original regular expressions in place. Converting syntax is usually fairly straight-forward. Deciphering and converting regular expressions, not always so. You would have that option with a pluggable regex API.

In reply to Re: Pluggable regex engine in Perl by ELISHEVA
in thread Pluggable regex engine in Perl by szabgab

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