javascript regex for validating email list with ASP MVC 2 data annotations

Question

I am trying to use ASP MVC 2 data annotations to validate a semicolon delimited list of email addresses on the client side. The regex below works on the server side but doesn't work with the javascript because javascript regular expressions don't support conditionals.

^([A-Za-z0-9_\\+\\-]+(\\.[A-Za-z0-9_\\+\\-]+)*@[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*\\.([A-Za-z]{2,4})(?(?=.);[ ]*|))+$

Is there a way to require that the email address is followed by a semicolon only if it is followed by another email address without using a conditional? Thanks.

TLDs can be longer than 4 characters.

Jeremy Stein
– Jeremy Stein

2012-04-13 16:14:39 +00:00
Commented Apr 13, 2012 at 16:14 — Jeremy Stein
– Jeremy Stein, Commented Apr 13, 2012 at 16:14

SergeS · Accepted Answer · 2011-02-10 22:21:48Z

2

if you need only this to alow this -

[email protected]; [email protected]

then regexp is

"^(([A-Za-z0-9_\+\-]+\.)*[A-Za-z0-9_\+\-]+@([A-Za-z0-9]+\.)+([A-Za-z]{2,4})(\s*(;)\s*))*([A-Za-z0-9_\+\-]+\.)*[A-Za-z0-9_\+\-]+@([A-Za-z0-9]+\.)+([A-Za-z]{2,4})$"

answered Feb 10, 2011 at 22:21

SergeS

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