Is there an implementation of org.apache.commons.lang.StringEscapeUtils for .Net?

Question

I'm porting over a Java project that I wrote which uses the Apache Commons StringEscapeUtils class (particularly the

escapeXml
unescapeXml
escapeHtml
unescapeHtml

methods). Is there a .Net equivalent? Or perhaps some totally logical bit of C# code that accomplishes the same thing?

Answer 1

Using System.Web for HTML there is:

• HttpUtility.HtmlEncode
• HttpUtility.HtmlDecode

For XML escaping you can use the SecurityElement.Escape method in the System.Security namespace. However, there's no equivalent to unescape it that I am aware of. You would have to write your own method that replaces the encoded XML, such as < and & etc. with their equivalents. The link for the escape method lists the other items.

Answer 2

You could use the HtmlEncode and HtmlDecode for the Html replacements. Your options for XML escaping can be found here.

Answer 3

Check out HttpServerUtility Class

HttpServerUtility.HtmlEncode, HtmlDecode, UrlDecode etc etc...

Also for XML:
System.Xml.XmlConvert
System.Security.SecurityElement.Escape

Answer 4

public static class StringEscapeUtils
{
    public static string EscapeXml(string unescaped)
    {
        return SecurityElement.Escape(unescaped);
    }

    public static string UnescapeXml(string escaped)
    {
        return escaped.Replace("&lt;", "<")
                      .Replace("&gt;", ">")
                      .Replace("&quot;", "\"")
                      .Replace("&apos;", "'")
                      .Replace("&amp;", "&");
    }

    public static string EscapeHtml(string unescaped)
    {
        return HttpUtility.HtmlEncode(unescaped);
    }

    public static string UnescapeHtml(string escaped)
    {
        return HttpUtility.HtmlDecode(escaped);
    }
}