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POURL rewriting Regex with capture group
 

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  1. POURL rewriting Regex with capture group
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    <p>I'm writing the following regular expression using .NET's regex engine:</p> <pre><code>Regex reg = new Regex(@"/Explorer/PeopleDirectory([/\?].*)?$"); var a = reg.Replace(@"http://localhost:106/Explorer/PeopleDirectory/assets/images/logo.png", "/Explorer/PeopleDirectoryProxy.aspx?pdurl=$0"); var b = reg.Replace(@"http://localhost:106/Explorer/PeopleDirectory/", "/Explorer/PeopleDirectoryProxy.aspx?pdurl=$0"); var c = reg.Replace(@"http://localhost:106/Explorer/PeopleDirectory", "/Explorer/PeopleDirectoryProxy.aspx?pdurl=$0"); var d = reg.Replace(@"http://localhost:106/Explorer/PeopleDirectory.aspx", "/Explorer/PeopleDirectoryProxy.aspx?pdurl=$0"); var e = reg.Replace(@"http://localhost:106/Explorer/PeopleDirectory?param1=value1&amp;param2=value2", "/Explorer/PeopleDirectoryProxy.aspx?pdurl=$0"); var f = reg.Replace(@"http://localhost:106/Explorer/PeopleDirectory/?param1=value1&amp;param2=value2", "/Explorer/PeopleDirectoryProxy.aspx?pdurl=$0"); </code></pre> <p>My desired output would be: </p> <pre><code>http://localhost:106/Explorer/PeopleDirectoryProxy.aspx?pdurl=assets/images/logo.png http://localhost:106/Explorer/PeopleDirectoryProxy.aspx?pdurl= http://localhost:106/Explorer/PeopleDirectoryProxy.aspx?pdurl= No match (as-is) http://localhost:106/Explorer/PeopleDirectoryProxy.aspx?pdurl=?param1=value1&amp;param2=value2 http://localhost:106/Explorer/PeopleDirectoryProxy.aspx?pdurl=?param1=value1&amp;param2=value2 </code></pre> <p>Current output is:</p> <pre><code>http://localhost:106/Explorer/PeopleDirectoryProxy.aspx?pdurl=/Explorer/PeopleDirectory/assets/images/logo.png http://localhost:106/Explorer/PeopleDirectoryProxy.aspx?pdurl=/Explorer/PeopleDirectory http://localhost:106/Explorer/PeopleDirectoryProxy.aspx?pdurl=/Explorer/PeopleDirectory No match (as-is) http://localhost:106/Explorer/PeopleDirectoryProxy.aspx?pdurl=/Explorer/PeopleDirectory?param1=value1&amp;param2=value2 http://localhost:106/Explorer/PeopleDirectoryProxy.aspx?pdurl=/Explorer/PeopleDirectory/?param1=value1&amp;param2=value2 </code></pre> <p>Assume URL encoding of result later. How do I get rid of the /Explorer/PeopleDirectory/ from appearing in the output? </p> <p>I thought I was only capturing the part that comes after the /Explorer/PeopleDirectory.... part so that when I reference it using $0 it would only capture the part in the parentheses? Could someone please explain where I've erred?</p>
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