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Perl : Numeric Range Pattern Matching

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# 1  
Old 07-17-2011
Java Perl : Numeric Range Pattern Matching
hi Experts

just wondering if you can help me check a number between a specific range

if i have an ip address , how can i say the valid number for ip between 1 to 254

something like this

if ($ip ) =~ /[1-254].[1-254].[1-254].[1-254]/
{

}


what the pattern i need to type


thanks
# 2  
Old 07-17-2011
You can try this:
Code:
$ip=~/(\d+)\.(\d+)\.(\d+)\.(\d+)/;
if ($1>=0 && $1<=255 && $2>=0 && $2<=255 && $3>=0 && $3<=255 && $4>=0 && $4<=255)
{
}

This User Gave Thanks to bartus11 For This Post:
doubando
# 3  
Old 07-17-2011
Quote:
Originally Posted by bartus11
You can try this:
Code:
$ip=~/(\d+)\.(\d+)\.(\d+)\.(\d+)/;
if ($1>=0 && $1<=255 && $2>=0 && $2<=255 && $3>=0 && $3<=255 && $4>=0 && $4<=255)
{
}

thanks ... it works

just wondering if i can do it in the patten matching
# 4  
Old 07-17-2011
It can be done, but it is not pretty Smilie
Code:
$ip=~/\b((2[0-5][0-5]\.)|(1?[0-9]?[0-9]\.)){3}((2[0-5][0-5])|(1?[0-9]?[0-9]))\b/

These 2 Users Gave Thanks to bartus11 For This Post:
doubando thegeek
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