SPUG: flip-flops

David Dyck dcd at tc.fluke.com
Mon Feb 11 10:28:36 CST 2002


On 10 Feb 2002 at 14:47 -0500, Michael R. Wolf <MichaelRunningWolf at att.net>...:

> Note that dollar ($) means ...
>  ... "last line" in the flip-flop.
>
>     $body   .= $_ if /^$/ .. $;

I don't think this does what you want

$ perl -wnle 'print "x$_" if 2 .. $;'
1
2
x2
3
4

as you can see.  I think it is parsed
as the variable "$;", so it is true
all the time, an you only get ..
to be true once, as it goes false
the next time.

perldoc perlvar

       $;      The subscript separator for multidimensional array
               emulation.




 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
     POST TO: spug-list at pm.org       PROBLEMS: owner-spug-list at pm.org
      Subscriptions; Email to majordomo at pm.org:  ACTION  LIST  EMAIL
  Replace ACTION by subscribe or unsubscribe, EMAIL by your Email-address
 For daily traffic, use spug-list for LIST ;  for weekly, spug-list-digest
     Seattle Perl Users Group (SPUG) Home Page: http://seattleperl.org





More information about the spug-list mailing list