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Blackwolf189 · Jun 20th, 2006, 2:51 PM

Hey i have a program where i needed to determine if something didnt match.
I originally tried using !=~ but no matter how many times i entered the string to match, it wouldnt work. i eventually replaced it with the not on the outside of the match and it now works. I would like to know why did !=~ fail to do what i wanted.

This doesnt Work

(Toggle Plain Text)

 
$k = ""
while ($k !=~ /hello/i)
{
    $k = <STDIN>;
}

This Works

(Toggle Plain Text)

$k = ""
while (!($k =~ /hello/i))
{
    $k = <STDIN>;
}

My question is whats the difference

Jun 20th, 2006, 2:51 PM	#1
Blackwolf189 Newbie Join Date: May 2005 Posts: 10 Rep Power: 0	Determining a negative match Hey i have a program where i needed to determine if something didnt match. I originally tried using !=~ but no matter how many times i entered the string to match, it wouldnt work. i eventually replaced it with the not on the outside of the match and it now works. I would like to know why did !=~ fail to do what i wanted. This doesnt Work (Toggle Plain Text) $k = "" while ($k !=~ /hello/i) { $k = <STDIN>; } $k = "" while ($k !=~ /hello/i) { $k = <STDIN>; } This Works (Toggle Plain Text) $k = "" while (!($k =~ /hello/i)) { $k = <STDIN>; } $k = "" while (!($k =~ /hello/i)) { $k = <STDIN>; } My question is whats the difference