c# regex match var value

Question

I want to match var value between quotes. here's input:

bunch of other text, html tags, css 
var SECURITYTOKEN = "1354010802-f407561a1503fa33e8e316f058c0f0598ce5adad";
bunch of other text, html tags, css

result should be 1354010802-f407561a1503fa33e8e316f058c0f0598ce5adad

i was trying something like this: Match m = Regex.Match(input, @"var\sSECURITYTOKEN\s="); but im totally confused.

try this: http://stackoverflow.com/questions/375104/how-can-i-match-a-quote-delimited-string-with-a-regex — speti43, Nov 27 '12 at 11:16
A good resource for testing .Net regex patterns online : http://derekslager.com/blog/posts/2007/09/a-better-dotnet-regular-expression-tester.ashx — hoang, Nov 27 '12 at 12:38

score 3 · Accepted Answer · answered Nov 27 '12 at 11:30

3

Your variant finds only the part var SECURITYTOKEN =

use positive lookahead (?=...) and positive lookbehind (?<=...)

String regexPattern = "(?<=var SECURITYTOKEN = \")(.*?)(?=\")";
Match m = Regex.Match(input, regexPattern);

answered Nov 27 '12 at 11:30

og Grand · Answer 2 · 2012-11-27T11:25:08.977

0

Try this regex (?<=")(.*?)(?=")

So it will be something like this

var regexPattern = "(?<=\")(.*?)(?=\")";
Match m = Regex.Match(input, regexPattern);

edited Nov 27 '12 at 11:25

answered Nov 27 '12 at 11:17

og Grand

score 0 · Answer 3 · answered Nov 27 '12 at 12:35

This is pretty much the same as og Grand answer but if your input looks like

var foo = "bar";
var SECURITYTOKEN = "1354010802-f407561a1503fa33e8e316f058c0f0598ce5adad";
var tata = "titi";

the following will be better :

var regexPattern = "(?<=var SECURITYTOKEN\s*=\s*\")(.*?)(?=\";)";
Match m = Regex.Match(input, regexPattern);

3 Answers3