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From: lwall@jpl-devvax.JPL.NASA.GOV (Larry Wall)
Newsgroups: comp.lang.perl
Subject: Re: question about using format
Message-ID: <11320@jpl-devvax.JPL.NASA.GOV>
Date: 5 Feb 91 23:59:28 GMT
References: <090557.28625@timbuk.cray.com> <COMPOSER.91Jan29110249@chem.bu.edu> <1991Feb05.223438.15456@gtisqr.uucp>
Reply-To: lwall@jpl-devvax.JPL.NASA.GOV (Larry Wall)
Organization: Jet Propulsion Laboratory, Pasadena, CA
Lines: 16

In article <1991Feb05.223438.15456@gtisqr.uucp> roger@gtisqr.uucp (Roger Droz) writes:
: I'm not sure this trick is even between the lines in the man page, but I
: have had success using expressions (including subroutine calls) in
: formats:
: 
: 	format pageheader =
: 	    This time is @<<<<
: 	    sprintf("%-2.2d:%-2.2d", $hour, $min)
: 	.
: 
: I'm not a fan of using undocumented features, so I'd like the official
: blessing of the Gurus before continuing to use expressions in formats.

It's documented as legal in the book.

Larry