Regular expression for email pattern

Question

0.00/5 (No votes)

See more:

Hi im using this this below expression to validated email

/^([0-9a-zA-Z_]+[-._+])*[0-9a-zA-Z_]+@([-0-9a-zA-Z]+[.])+[a-zA-Z]{2,6}$/

its working fine. but i need to give the validation alert when user entered _ before the @ symbol. like this email[abc_C_@abc.com]

i dont know how to remove. so pls advice me to close it shortly

What I have tried:

if i remove _ then the entire underscore will be consider.

Posted 22-Dec-16 22:46pm

sencsk

Updated 23-Dec-16 3:41am

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Patrice T · Answer 1 · 2016-12-23T03:41:00

Solution 2

Quote:
i don't know how to remove.

Why do you want to remove the _ which is perfectly legal.

Here is a link to RegEx documentation:
perlre - perldoc.perl.org[^]
Here is links to tools to help build RegEx and debug them:
.NET Regex Tester - Regex Storm[^]
Expresso Regular Expression Tool[^]
This one show you the RegEx as a nice graph which is really helpful to understand what is doing a RegEx:
Debuggex: Online visual regex tester. JavaScript, Python, and PCRE.[^]

Posted 23-Dec-16 3:41am

Patrice T

Comments

sencsk 3-Jan-17 2:48am

actually the user entered emailid and other details which i pass it to another third party application. so input for the third party application is not supported my case so i should remove it properly. this is my requirements too

Patrice T 3-Jan-17 5:23am

What do you want to do exactly ?
Validate ? Detect ? Alert ? remove ?
Show example.
Use Improve question to update your question.

avelsamy · Answer 2 · 2016-12-22T23:08:00

Solution 1

try this,

/^([0-9a-zA-Z_]+[-._+])*[0-9a-zA-Z]+@([-0-9a-zA-Z]+[.])+[a-zA-Z]{2,6}$/

Posted 22-Dec-16 23:08pm

avelsamy