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what I actually tried to say by analyzing your regex pattern - the way you wrote it, it would only validate an empy string or one character long string 
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what I actually tried to say by analyzing your regex pattern - the way you wrote it, it would only validate an empy string or one character long string

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try pattern=&quot;[[:alpha:]]&quot;<br />
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Of course &nbsp;[[:alpha:]] can be used - it is an exact equivalent of [a-zA-Z]. But the problem with the code was caused by improper use of ^$? operators. Original regular expression pattern written by asaworker would only match one character long string of alpha characters (or empty string)
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Of course  [[:alpha:]] can be used - it is an exact equivalent of [a-zA-Z]. But the problem with the code was caused by improper use of ^$? operators. Original regular expression pattern written by asaworker would only match one character long string of alpha characters (or empty string)

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<div class="content wysiwyg-content">
&lt;cfinput type=&quot;text&quot; name=&quot;screenname&quot; id=&quot;screenname&quot; validate=&quot;regular_expressi<wbr />on&quot; pattern=&quot;^[a-zA-Z]?$&quot; value=&quot;#name#&quot; validateat=&quot;onsubmit, onserver&quot; required=&quot;yes&quot; size=&quot;20&quot; maxlength=&quot;20&quot; message=&quot;Please use 20 characters or less for your screen name.&quot; /&gt;<br />
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isn't working. I keep getting the javascript to popup even when string is correct. What am I doing wrong?
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<cfinput type="text" name="screenname" id="screenname" validate="regular_expression" pattern="^[a-zA-Z]?$" value="#name#" validateat="onsubmit, onserver" required="yes" size="20" maxlength="20" message="Please use 20 characters or less for your screen name." />

isn't working. I keep getting the javascript to popup even when string is correct. What am I doing wrong?

cfinput reg ex string validation issue with alpha only

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