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Re^6: Feature Idea: qr//e

by haukex (Archbishop)
on Jan 21, 2017 at 10:10 UTC ( #1180075=note: print w/replies, xml ) Need Help??

in reply to Re^5: Feature Idea: qr//e
in thread Feature Idea: qr//e (updated with solutions)

Hi choroba,

Hm, the * prototype is a really cool idea, too bad about that... here's a less elegant workaround (also incorporates AnomalousMonk's suggestion). As far as I can tell, for single letter modifiers it's only m and s that cause a problem, the others (/ixpodualn) are fine, and multi-letter modifiers are fine as far as they don't clash with any other subs (like main, min, or sum) or operators (like and, although that's not a valid combination of modifiers). With the letters "msixpodualn" you can actually spell a lot of words :-)

use List::Util qw/min sum/; sub qre (&;*) { my $re = shift->(); eval 'qr/$re/'.(@_ ? lc shift : '') || die $@ } say qre{ join '|', qw/foo bar/ }M; say qre{ join '|', qw/foo bar/ }msx; say qre{ join '|', qw/foo bar/ }Min; say qre{ join '|', qw/foo bar/ }Sum; __END__ (?^m:foo|bar) (?^msx:foo|bar) (?^min:foo|bar) (?^ums:foo|bar)

-- Hauke D

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