Why this code does not do what I mean?

Posted by Mike on Stack Overflow See other posts from Stack Overflow or by Mike
Published on 2010-03-08T13:02:48Z Indexed on 2010/03/08 13:06 UTC
Read the original article Hit count: 199

Filed under:

perl

|

regex

|

hash

$w = 'self-powering';
%h = (self => 'self',
      power => 'pau?',
      );
if ($w =~ /(\w+)-(\w+)ing$/ && $1~~%h && $2~~%h && $h{$2}=~/?$/) {
    $p = $h{$1}.$h{$2}.'ri?';
      print "$w:"," [","$p","] "; 
}

I expect the output to be

self-powering: selfpau?ri?

But what I get is:

self-powering: [ri?]

My guess is something's wrong with the code

$h{$2}=~/?$/

It seems that when I use

$h{$2}!~/?$/

Perl will do what I mean but why I can't get "self-powering: selfpau?ri?"? What am I doing wrong? Any ideas?

Thanks as always for any comments/suggestions/pointers :)

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