On 7 April 2016 at 07:20, Jonathon Fernyhough <jonat...@manjaro.org> wrote:
>
> qq{} obviously wins when there would otherwise be a lot of escaping, but
> are there any downsides of using this method more generally (other than
> double-quotes being two characters shorter)? For example, is it "faster"
> for Perl to parse a double-quoted string or does the compiler optimise
> this out so the methods are fundamentally equivalent?


In that regards you can get a reasonable look at how perl interprets
your string with B::Deparse, partly because
the deparse reversal shows it more "natively"

perl -MO=Deparse -e' print q[Helloo]'
print 'Helloo';

perl -MO=Deparse -e' print qw[Helloo world]'
print 'Helloo', 'world';

perl -MO=Deparse -e' print qq[Helloo world]'
print 'Helloo world';

 perl -MO=Deparse -e' print q[Helloo world $var]'
print 'Helloo world $var';

perl -MO=Deparse -e' print qq[Helloo world $var]'
print "Helloo world $var";  <-- note double quotes

 perl -MO=Deparse -e' print qq[Helloo \Qwo)\E]'
print 'Helloo wo\\)';




-- 
Kent

KENTNL - https://metacpan.org/author/KENTNL

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