Need help validating a form field server side

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>