Need help validating a form field server side

[andy99-Qu0Z4j]

Sorry for the entry level question but how can I validate a text field server side

to check if it contains at least one capital letter, one number and one character?

Thanks

[Dan_Bracuk]

Not sure what you mean by one character but, the function you want is REFind().

[andy99-Qu0Z4j]

Thanks. I meant special characters like @#$%^&*

[Dan_Bracuk]

Someone more clever than me might be able to do it with a single rexex, but I'd do it with 3.

<cfif Refind(something for capital letters) gt 0

and Refind(something for numbers) gt 0

and Refind(something that's neither a number nor a letter) gt 0>

good

<cfelse>

bad

[andy99-Qu0Z4j]

Thanks Dan. That is what

I have done but I'm struggiling with the regular expression to check for capital

letters, number and special characters in the submitted form field.

[Dan_Bracuk]

To get the answer quickly, this might help.  http://www.regular-expressions.info/reference.html

To learn how to write regular expression patterns, this might help.  http://www.regular-expressions.info/tutorial.html

[andy99-Qu0Z4j]

Thanks. I'm almost done with this. I have

not programmed in years and very rusty and things are coming back to me now bit by bit.

[BKBK · Accepted solution]

andy99 wrote:

Sorry for the entry level question but how can I validate a text field server side

to check if it contains at least one capital letter, one number and one character?

...

I meant special characters like @#$%^&*

<!--- The pound sign(#) is a special Coldfusion symbol, and is
escaped with #. The dollar($), caret(^) and asterisk(*) are
special regex characters, and so are escaped with a backslash(\). --->

<cfset specialChars="[@##\$%\^&\*]">

<cfset testString="asdf@123.com">

<cfif REFind("[A-Z]",testString) GT 0 and REFind("[0-9]",testString) GT 0 and REFind(specialChars,testString) GT 0>
There's a match.
<cfelse>
There's no match.
</cfif>

[andy99-Qu0Z4j]

Thank you BKBK.

Cheers

[BKBK]

No thanks.