Extract email adresses from text using RegEx c#

Question

I have code in console app

reg = new Regex(@"/[a-z0-9_\-\+]+@[a-z0-9\-]+\.([a-z]{2,3})(?:\.[a-z]{2})?/i");
  string text = "wjeqklejqwek myEmail@hotmail.com a;lekqlwe anothermail@mail.ru";
  parseTextByTagName("", text);
  MatchCollection coll =   reg.Matches(text);
}

when I debug it it shows that the coll is empty could you tell whats problem I am solving it about an hour

You do know that your regular expression doesn't come near to covering all valid email addresses? — Enigmativity, Jan 25 '14 at 09:00
This, for example, is a valid email address - `"very.unusual.@.unusual.com"@example.com` - and so is this - `!#$%&'*+-/=?^_{}|~@example.org` — Enigmativity, Jan 25 '14 at 09:06

score 5 · Answer 1 · answered Jan 25 '14 at 08:46

5

try this

string strRegex = @"[A-Za-z0-9_\-\+]+@[A-Za-z0-9\-]+\.([A-Za-z]{2,3})(?:\.[a-z]{2})?";
Regex myRegex = new Regex(strRegex, RegexOptions.None);
string strTargetString = @"wjeqklejqwek myEmail@hotmail.com a;lekqlwe anothermail@mail.ru";

foreach (Match myMatch in myRegex.Matches(strTargetString))
{
  if (myMatch.Success)
  {
    // Add your code here
  }
}

answered Jan 25 '14 at 08:46

santosh singh

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it wokred!!!! what waas the problem? thanks man – user3150998 Jan 25 '14 at 08:52
Thank you for your code it's work 100% – Osama khodroj Nov 10 '15 at 09:59
1

this regex does not work for dot in the email address eg. a.b@c.com won't work. to fix use this instead @"[A-Za-z0-9_\-\+\.]+@[A-Za-z0-9\-]+\.([A-Za-z]{2,3})(?:\.[a-z]{2})?" – Gerrie Pretorius Apr 21 '21 at 19:06

score 1 · Answer 2 · answered Jan 25 '14 at 08:47

1

Your regular expression worked for me if I take out / & /i.

[a-z0-9_\-\+]+@[a-z0-9\-]+\.([a-z]{2,3})(?:\.[a-z]{2})?

alternatively, you can also use this...

/^[\w-\._\+%]+@(?:[\w-]+\.)+[\w]{2,6}$/

answered Jan 25 '14 at 08:47

Buddha

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Extract email adresses from text using RegEx c#

2 Answers2