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#1
July 18th, 2000, 09:53 AM
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I have a user form that instructs the user to input a hex string (ie. 1A:33
 4:5F:CC)I need to validate that each character entered is a valid hex character 1-9 A-F. Any ideas of how to do this effeciently? My current code breaks the string into individual characters and checks them in a foreach loop with the hex values in an array...this seems to be ineffective. Thanks
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#2
July 18th, 2000, 02:41 PM
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use the m// operator
if($test_var =~ m/(d|w)/) {$good = 1} else {$good = 0;}
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#3
July 18th, 2000, 04:43 PM
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Thanks worked great...
Used the following to check hex value: if($in1 =~ m/[1-9]/) {$good = 1;} else {$good = 0;} if ($good == 0) { if($in2 =~ m/[A-F]/) {good = 1;} else {$good = 0;} }
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#4
July 18th, 2000, 06:42 PM
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N/P
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| Viewing: Dev Shed Forums > Programming Languages > Perl Programming > Validating characters - Hex |
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