Pattern matching email address using regular expressions

regex email-address
Brad picture Brad · May 2, 2011 · Viewed 12.2k times · Source

Filter email address with regular expressions: I am new to regular expressions and was hoping someone might be able to help out.

I am trying to pattern match an email address string with the following format:

[email protected]

I want to be sure that there is a period somewhere before the '@' character and that the characters after the '@' character matches gmail.com

Answer

Alexey Kukanov picture Alexey Kukanov · May 2, 2011

You want some symbols before and after the dot, so I would suggest .+\..+@gmail\.com.

.+ means any symbols (.) can appear 1 or more times (+)
\. means the dot symbol; screened with backslash to suppress the special meaning of .
@gmail and com should be matched exactly.

See also Regular Expression Basic Syntax Reference

EDIT: gmail rules for account name only allow latin letters, digits, and dots, so a better regex is
[a-zA-Z0-9]+\.[a-zA-Z0-9]+@gmail\.com

Related questions

How to check for valid email address?

Is there a good way to check a form input using regex to make sure it is a proper style email address? Been searching since last night and everybody that has answered peoples questions regarding this topic also seems to …

Read More
Extract all email addresses from bulk text using jquery

I'm having the this text below: [email protected], "assdsdf" <[email protected]>, "rodnsdfald ferdfnson" <[email protected]>, "Affdmdol Gondfgale" <[email protected]>, "truform techno" <[email protected]>, "NiTsdfeSh ThIdfsKaRe" <nthfsskare@…

Read More
Regular Expression for domain from email address

Can anyone help me with a regular expression that will return the end part of an email address, after the @ symbol? I'm new to regex, but want to learn how to use it rather than writing inefficient .Net string functions! …

Read More