Solved

Regex - email

Posted on 2013-11-15
8
4,158 Views
Last Modified: 2013-11-18
This is the email pattern I use to valid email address format.  I just want to add "`"  to this pattern. Sample john'ona.doe@mysite.com This is a good format.
^([\w\d\-\.]+)@{1}(([\w\d\-]{1,67})|([\w\d\-]+\.[\w\d\-]{1,67}))\.(([a-zA-Z\d]{2,4})(\.[a-zA-Z\d]{2})?)$
0
Comment
Question by:VBdotnet2005
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
8 Comments
 
LVL 84

Expert Comment

by:ozo
ID: 39652176
fred&barney@stonehenge.com
is a valid email address that is not recognized by the above pattern
0
 

Author Comment

by:VBdotnet2005
ID: 39652219
If that is the case, could you add that also?
0
 
LVL 19

Expert Comment

by:bevhost
ID: 39652317
^([\w\d\-\.\`\&]+)@{1}(([\w\d\-]{1,67})|([\w\d\-]+\.[\w\d\-]{1,67}))\.(([a-zA-Z\d]{2,4})(\.[a-zA-Z\d]{2})?)$
0
Resolve Critical IT Incidents Fast

If your data, services or processes become compromised, your organization can suffer damage in just minutes and how fast you communicate during a major IT incident is everything. Learn how to immediately identify incidents & best practices to resolve them quickly and effectively.

 
LVL 14

Expert Comment

by:sentner
ID: 39652344
To add characters to the name portion, just add them inside the first set of square brackets. There are a bunch of possible characters missing from the pattern above (including: ! # $ % & ' * + - / = ?  ^ _ ` . { | } ~), please see:

http://tools.ietf.org/html/rfc3696

That said, your expression does include some unnecessary redundancies (like "\w\d" which can be simplified to just \w).   You may need to escape out some of the special characters (possibly including `) but not all of them.
0
 
LVL 19

Assisted Solution

by:bevhost
bevhost earned 125 total points
ID: 39652362
You're still a long way from accepting all valid email addresses.
see
http://en.wikipedia.org/wiki/Email_address
Also I think ' is probably more common than `
0
 
LVL 75

Assisted Solution

by:käµfm³d 👽
käµfm³d   👽 earned 125 total points
ID: 39652363
You might want to read the information presented at this link:

http://www.regular-expressions.info/email.html

...pertaining to why overly-complicated email patterns aren't usually necessary.
0
 
LVL 14

Accepted Solution

by:
sentner earned 125 total points
ID: 39652393
This should catch all of the possible characters:

^([\w!#$%&\'\*+-/=\?^\`\.\{\|\}~]+)\@{1}(([\w-]{1,67})|([\w-]+\.[\w-]{1,67}))\.(([a-zA-Z\d]{2,4})(\.[a-zA-Z\d]{2})?)$
0
 
LVL 11

Assisted Solution

by:SAMIR BHOGAYTA
SAMIR BHOGAYTA earned 125 total points
ID: 39655778
hi.. You just use this...

private static Regex emailRegex = new Regex(@"^([a-zA-Z0-9\'_\-\.]+)@((\[[0-9]{1,3}" +
         @"\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\" +
         @".)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$")
0

Featured Post

How Do You Stack Up Against Your Peers?

With today’s modern enterprise so dependent on digital infrastructures, the impact of major incidents has increased dramatically. Grab the report now to gain insight into how your organization ranks against your peers and learn best-in-class strategies to resolve incidents.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Many of us here at EE write code. Many of us write exceptional code; just as many of us write exception-prone code. As we all should know, exceptions are a mechanism for handling errors which are typically out of our control. From database errors, t…
This article aims to explain the working of CircularLogArchiver. This tool was designed to solve the buildup of log file in cases where systems do not support circular logging or where circular logging is not enabled
Attackers love to prey on accounts that have privileges. Reducing privileged accounts and protecting privileged accounts therefore is paramount. Users, groups, and service accounts need to be protected to help protect the entire Active Directory …

730 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question