Thank you. That explains it very clearly. What a powerful feature. I think I'll go away and practice before I try to use this in anger.

I have the Third Edition of the Camel book in which qr{} and (??{$re}) appear. I have to say that your explanation is clearer than the book.

Cheers,

JohnGG

In reply to Re^4: A (non) reg-ex question by johngg
in thread A (non) reg-ex question by Ido

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