in reply to Best practice or cargo cult?
How hard would it be to write a pragma to do this? Or does one already exist? I'm thinking something like...
Could be a nifty way of anticipating the Coming of Perl 6. Whenever that'll be...use warnings; use strict; use PBP::xsm; =~ /xsm is on/; =~ /(?-x)(?-s)m is on, x and s if off/; #or whatever the appropriate s +yntax for switching off regex options... ??
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