In struts I have regular expression for validating email like this -
<constant>
<constant-name>EMail</constant-name>
<constant-value>^([a-zA-Z0-9]([\w\.-]*[a-zA-Z0-9])*[...@[a-za-z0-9]([\w\.-]*[a-zA-Z0-9])*\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z])[\s]*$</constant-value>
</constant>
Now I want to allow & in the email. I tried like this
<constant-value>^([a-zA-Z0-9&]([\w\.-]*[a-zA-Z0-9&])*[...@[a-za-z0-9]([\w\.-]*[a-zA-Z0-9])*\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z])[\s]*$</constant-value>
OR
<constant-value>^([a-zA-Z0-9]([\w\.-]*[a-zA-Z0-9])*[...@[a-za-z0-9]([\w\.-&]*[a-zA-Z0-9])*\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z])[\s]*$</constant-value>
I also tried escaping special char using \&.
But its not working. gives error at deploy time.
Please help
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