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Matts (1087)

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I work for MessageLabs [] in Toronto, ON, Canada. I write spam filters, MTA software, high performance network software, string matching algorithms, and other cool stuff mostly in Perl and C.

Journal of Matts (1087)

Wednesday September 22, 2004
10:06 AM

multiline comments

[ #21003 ]

Seen on IRC:

=for comment =end is fine for me

Except that doesn't do what you think it does. =for is a single line formatting marker in pod, so it only marks whatever comes on the same line as the =for as a "comment" (ok, so since it's POD, it also includes anything on following lines as long as there's no blank lines following).

So a common scenario might be:

=for comment
This is a multiline comment.
Ignore this section of stuff.

However a POD processor sees that as one line of "comment" stuff, and two lines of ordinary POD documentation paragraphs. Yes - the POD processor turns your commented out section as documentation.

I'm sure this is not what people want or intend.

What's the fix? This is what =begin/=end is for!

=begin comment
This is a multiline comment
Ignore this

Run both under a modern POD (pre)processor and you should be able to see the difference.

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