Combine two regular expressions in C#

Question

I have a problem with writting a reg exp for a string like this in C#

String correct = "<a>link</a>";
String wrong   = "link</a>";

I know how to select the first in a reg exp example

string regExp = "^(<a>)";

Ans i know how to select the last one

string regExp = "(</a>)$";

But how could i combine this two, to one

Have you read this [answer](http://stackoverflow.com/a/1732454/1283124)? — Ilya Ivanov, Mar 05 '15 at 18:57
Ilya, the answer that you proposed in the first comment is the best I ever read )) Bham, you need something like this: ^.*?$ — rtf_leg, Mar 05 '15 at 19:11
If your using C#, have you tried using a DOM parser library instead of Regex? — Cole Tobin, Mar 05 '15 at 19:23
possible duplicate of [RegEx match open tags except XHTML self-contained tags](http://stackoverflow.com/questions/1732348/regex-match-open-tags-except-xhtml-self-contained-tags) — Cole Tobin, Mar 05 '15 at 19:27

score 4 · Accepted Answer · edited May 23 '17 at 11:53

4

Please use:

Regex regex = new Regex("<a>(.*)</a>");

string correct = "<a>link</a>";    
bool okBool = regex.IsMatch(correct); // true

string wrong = "link</a>";
bool wrongBool = regex.IsMatch(wrong); //false

Or as mentioned by Ilya Ivanov, you can use this regex:

Regex regex = new Regex("^<a>(.*)</a>$");

edited May 23 '17 at 11:53

Community

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answered Mar 05 '15 at 18:59

Odrai

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OP probably wanted something along `^(.*)$` – Ilya Ivanov Mar 05 '15 at 19:02
@Bham, I'm glad I could help! Please accept the answer, so the problem is marked as solved :) – Odrai Mar 05 '15 at 19:08

Combine two regular expressions in C#

1 Answers1