Regex expression to search upto nested level

c#, regex

Solution

You could simply use this pattern:

{([^{}]*)}

This will match any string like `{some content}` which does not contain any other group like `{some content}`. You can test this here.

You can capture this using:

var str = "samir patel {samirpatel@test1.com{sam@somedomain.com}}";
var regex = new Regex("{([^{}]*)}");
var matches = regex.Matches(str);
var output = matches[0].Groups[1].Value;
// output == "sam@somedomain.com"

Or more simply:

var str = "samir patel {samirpatel@test1.com{sam@somedomain.com}}";
var output = Regex.Match(str, "{([^{}]*)}").Groups[1].Value; 
// output == "sam@somedomain.com"

Problem

Original source