CODEWITHSUNDEEP
regexregex-group
Katelyn Raphael
Katelyn Raphael

Reputation: 323

Email Regex Match with [dot] for "." & [at] for "@"

How can I match all the emails listed below through regex:

[email protected]
ma123.23ddy(at)gmail.com
mad12-213dy@gmail(dot)com
ma123ddy[at]gmail[dot]com
mad123dy@gmail[dot]com 
maddy[at]gmail.com
rc.joshi62@gov[dot]ab.ws.com
rc.joshi62[at]gov.ab.ws.com
rc.joshi62[at]gov[dot]ab.ws.com
[email protected]

c.123.joshi62(at)gov(dot)ab.ws.com
rc123.jo123shi62(at)gov.ab.ws.com
r123c.joshi62@gov(dot)ab.ws.com
c.123[dot]joshi62(at)gov(dot)ab[dot]ws[dot]com
rc123(dot)jo123shi62(at)gov(dot)ab(dot)ws(dot)com
rc123(dot)jo123shi62[at]gov(dot)ab(dot)ws(dot)com
r123c(dot)joshi62[at]gov(dot)ab[dot]ws[dot]com

I'm trying to match all the complex email id's mentioned in the source code of this site:view-source:https://www.panchayat.gov.in/web/guest/who-s-is-who I'm currently using this Regex as mentioned below:

\b[A-Z0-9._%+-]+@[[A-Z0-9.-]+\.[A-Z]{2,}\b

Upvotes: 0

Views: 905

Answers (3)

Poul Bak
Poul Bak

Reputation: 10930

Ok, here it is: The regex:

\b[A-Z0-9._%+-]+(@|\[at\]|\(at\))[A-Z0-9.-]+((\.|\[dot\]|\(dot\))[A-Z]{2,})+\b

Compared to your own regex, this simply add alternations (meaning OR). I add:

(@|\[at\]|\(at\))

which will match an '@' OR '[at]' OR '(at)'.

For dot I add:

(\.|\[dot\]|\(dot\))

which will match a dot OR '[dot]' OR '(dot)'

I then made a group of:

((\.|\[dot\]|\(dot\))[A-Z]{2,})+

which will match things like: '.com' and '.uk.com' one or more times.

Update: I updated the regex to support '.' or '(dot)' or '[dot]' in the name before '@':

\b[A-Z0-9._%+-]+((\.|\[dot\]|\(dot\))[A-Z0-9._%+-]+)*(@|\[at\]|\(at\))[A-Z0-9.-]+((\.|\[dot\]|\(dot\))[A-Z]{2,})+\b

Now it matches all the examples in the question.

BTW: The mistake you made in your recent regex is to include everything in a character group (between square brackets). That will match every character in the group, in any order.

Update 2:

Ups, typo, updated the regex.

Upvotes: 1

MDR
MDR

Reputation: 2670

Given these strings...

[email protected]
ma123.23ddy(at)gmail.com
mad12-213dy@gmail(dot)com
ma123ddy[at]gmail[dot]com
mad123dy@gmail[dot]com 
maddy[at]gmail.com
rc.joshi62@gov[dot]ab.ws.com
rc.joshi62[at]gov.ab.ws.com
rc.joshi62[at]gov[dot]ab.ws.com
[email protected]
c.123.joshi62(at)gov(dot)ab.ws.com
rc123.jo123shi62(at)gov.ab.ws.com
r123c.joshi62@gov(dot)ab.ws.com
c.123[dot]joshi62(at)gov(dot)ab[dot]ws[dot]com
rc123(dot)jo123shi62(at)gov(dot)ab(dot)ws(dot)com
rc123(dot)jo123shi62[at]gov(dot)ab(dot)ws(dot)com
r123c(dot)joshi62[at]gov(dot)ab[dot]ws[dot]com

Try...

\b([\w\d]+)?(\.)?([-])?[\w\d]+(\.)?[\w\d]+(@|\[at\]|\(at\))?[\w\d]+(\.|\[dot\]|\(dot\))[\w\d]{2,}(\.[\w\d]+\.[\w\d]+)?(\.[\w\d]+)?\b

UPDATE: Cleaned up version...

\b[\w\d.-]+(@|\[at\]|\(at\))[\w\d]+(\[dot\]|\(dot\)|\.)[\w\d.-]+\b

Upvotes: 0

MDR
MDR

Reputation: 2670

Given these strings...

[email protected]
maddy[at]gmail[dot]com
maddy@gmail[dot]com
maddy[at]gmail.com
rc.joshi62@gov[dot]ab.ws.com
rc.joshi62[at]gov.ab.ws.com
rc.joshi62[at]gov[dot]ab.ws.com
rc.joshi62.gov.ab.ws.com
c.joshi62(at)gov(dot)ab.ws.com
rc.joshi62(at)gov.ab.ws.com
rc.joshi62@gov(dot)ab.ws.com

The following regex matches the string if it's on its own line...

^([\w\d]+\.)?[\w\d]+(@|\[at\]|\(at\))?[\w\d]+(\.|\[dot\]|\(dot\))[\w\d]{2,}(\.[\w\d]+\.[\w\d]+)?(\.[\w\d]+)?$

If the email appears in a larger string but has spaces (word boundaries before and after) try...

\b([\w\d]+\.)?[\w\d]+(@|\[at\]|\(at\))?[\w\d]+(\.|\[dot\]|\(dot\))[\w\d]{2,}(\.[\w\d]+\.[\w\d]+)?(\.[\w\d]+)?\b

Upvotes: 1

Related Questions