How many time have you been working on some code and wanted to comment out a section of it to test specific code components?

Often.

q{
    ...;
    ...;
};
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Perl will optimize this away, so there's no execution speed involved. Probably the best thing about this is that many color highlighting editors will mark this as a string (which it is), so you can see that it's something not-normal. BEGIN blocks are not BEGIN blocks anymore, they are just part of the never-executed string. It doesn't do any syntax checking (well, you do have to balance your {}'s, or have to choose other delimiters).

Update (Aug 15 2002):

15:07 <@kane_> juerd: it looks elegant, but wanrs =)
15:07 <@Juerd> kane_: I know, but it's perfect for development code. T
+he
               warning is a good reminder, too
15:08 <@Juerd> I can't believe I didn't say anything about warnings in
+ that
               post...
15:12 <@Juerd> kane_: Hmmm... use Acme::Comment qw/start q{ end };/ wo
+uld work,
               wouldn't it? :)
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