Thank you a lot! The missing curly brace is probably just a typo in the node's text; the script itself, with the corrected assertion, works. With regard to nested regexes, are there plans to remove this limitation in Perl 6? Granted, it might not be a feature that would often be used, but then, the same holds probably true for match-time code evaluation, anyway.

--
mowgli

In reply to Re^3: Unexpected 'panic: top_env' in regex match by mowgli
in thread Unexpected 'panic: top_env' in regex match by mowgli

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