How about transliteration?

if( $str =~ tr/_/_/ ) {
    print "with underscore\n";
} else {
    print "no underscore\n";
}

[download]

Or just for fun... 

my $result = 
      ( $str =~ tr/_/_/ )
    ? "with "
    : "no ";

print "$result underscore\n";

[download]

perlop explains the use of the tr/// operator.


Dave

In reply to Re: Regex for Differentiating Underscore and Whitespace by davido
in thread Regex for Differentiating Underscore and Whitespace by neversaint

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