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J. Gleixner  
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 More options Aug 16 2012, 4:51 pm
Newsgroups: comp.lang.perl.misc
From: "J. Gleixner" <glex_no-s...@qwest-spam-no.invalid>
Date: Thu, 16 Aug 2012 15:51:29 -0500
Local: Thurs, Aug 16 2012 4:51 pm
Subject: Re: number of starting tabs
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On 08/16/12 15:07, George Mpouras wrote:

> I want to count the number of staring tabs of a string. Is there any
> better way than

> my $var = ' foo ';
> (my $tabs = $var) =~s/^(\t*).*$/$1/; $tabs = length $tabs;
> print $tabs; # 2

Avoid doing a substitute/replace and just capture them:

my ( $tabs ) = $var =~ /^(\t+)/;
print "Number of tabs:", length( $tabs ), "\n";


 
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