Allow ascii character during jsf regex validation

Question

I have this code to validate an email address and I think it works fine for normal circumstances

<h:inputText id="email" value="#{myBean.email}"
        required="true">
    <f:validateRegex pattern="[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}" />
</h:inputText>

But if somebody enters this sample email

lòmbardi.Çorneliö@mymail.com

..the regex fails.

Question, is there a way to have a validator allows other ascii characters?

Thanks.

Have a look at http://stackoverflow.com/questions/5071236/java-regexp-to-match-ascii-characters — Craig, May 28 '13 at 03:03
You might also want to allow lòmbardi.Çorneliö@[παράδειγμα.δοκιμή](http://παράδειγμα.δοκιμή), lòmbardi.Çorneliö@subdomain.mymail.com, etc. — Tom Blodget, May 28 '13 at 04:06
ahh yes...that seems logical now.. so I am thinking more on this matter...any thoughts? — Mark Estrada, May 28 '13 at 04:09

score 2 · Accepted Answer · edited May 23 '17 at 12:18

2

Just don't validate only latin characters in A-Z range. This makes since May 2010 no sense anymore as practically any unicode character is allowed in domain name. It's much better to validate only the occurrence of the @ and . characters.

<f:validateRegex pattern="([^.@]+)(\.[^.@]+)*@([^.@]+\.)+([^.@]+)" />

Allow ascii character during jsf regex validation

1 Answers1

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