Regular Expression for matching a hex 1

[MikeAJ]

I need to test a string to see if it is a hex value, but I'm running into some problems. Here's what I have so far:

strTest = Request("t&quot
Set regEx = New RegExp
regEx.IgnoreCase = False
regEx.Pattern = "[^0-9A-F]+\s"
If Not regEx.test(strTest) and Len(strTest) MOD 2 = 0 Then isHex = true Else isHex = false

I know in this case the hex will always be uppercase, so that's why I'm ignoring case. I tried to setup a match for anything other than a number or letters A-Z, or a whitespace. When I run tests on it both "4E2B7F0A" and "4E B7F0A" return true. The space should make it return false. Lower case "4e2b7f0a" should also return false. Any ideas on my error?

Thanks,
Mike

 

[onpnt]

try regEx.Pattern = "[^0-9_A-F$]"

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_{01001111 01101110 01110000 01101110 01110100}

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[/sub]

 

[MikeAJ]

That did the trick, works great.
Thanks

 

[Tarwn]

For future reference, an easy way to check on your regular expressions is to use the match method to produce a collection of matches and then output them. In the above case you wqould have noticed that the reason the test method was returning true is because it did find a match inside your string. What onpnt's solution did was force it to try and match the entire string by saying that the match had to start with the beginning of the string and end with the end of the string, or in plain english, match the whole string or none of it.

-Tarwn

_{01010100 01101001 01100101 01110010 01101110 01101111 01101011 00101110 01100011 01101111 01101101}
^{29 3K 10 3D 3L 3J 3K 10 32 35 10 3E 39 33 35 10 3K 3F 10 38 31 3M 35 10 36 3I 35 35 10 3K 39 3D 35 10 1Q 19}
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