ch07.028_best

Perl Best Practices the source code

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##   Code fragment (Recommended) from Chapter 7 of "Perl Best Practices"    ##
##     Copyright (c) O'Reilly & Associates, 2005. All Rights Reserved.      ##
##  See: http://www.oreilly.com/pub/a/oreilly/ask_tim/2001/codepolicy.html  ##
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=for Workaround:
     Have to use a localized package variable here, rather than a 
     lexical. A closure would be better of course, but lexicals don't seem 
     to propagate properly into regexes under 5.8.3 (or earlier). This 
     problem has been reported via perlbug.   
 
=cut