C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
using System.Xml.Linq;
using System.Linq;
using System.Text;
using System.Threading;
using System.Xml.Serialization;
using System.Xml.XPath;
using System.Text.RegularExpressions;

public class Program
{
	public static void Main()
	{
		var xml = @"<html>
    <head></head>
    <body>
        <table>
            <tr>
                <td>{{ var1 }}</td>
                <td>{{ var2 }}</td>
            </tr>
            <tr>
                <td>{{ var3 }}</td>
                <td>{{ var4 }}</td>
            </tr>
        </table>
    </body>
</html>";
		var mydoc = XDocument.Parse(xml);
		var _placeholderRegex = new Regex("({{.+?}})");
		var placeHolders = from d in mydoc.Descendants()
                               where d.DescendantNodes()
                                      .OfType<XText>()
                                      .Any(o => o.Parent == d && _placeholderRegex.IsMatch(o.Value))
                               select d;
		foreach (var placeHolder in placeHolders)
		{
			//var result = placeHolder.Descendants().Where(o => o.Value == _placeholderRegex.M)
			Console.WriteLine(placeHolder.Value);
		}
	}
}

​x
 
using System;
using System.Xml.Linq;
using System.Linq;
using System.Text;
using System.Threading;
using System.Xml.Serialization;
using System.Xml.XPath;
using System.Text.RegularExpressions;
​
public class Program
{
    public static void Main()
    {
        var xml = @"<html>
    <head></head>
    <body>
        <table>
            <tr>
                <td>{{ var1 }}</td>
                <td>{{ var2 }}</td>
            </tr>
            <tr>
                <td>{{ var3 }}</td>
                <td>{{ var4 }}</td>
            </tr>
        </table>
    </body>
</html>";
        var mydoc = XDocument.Parse(xml);
        var _placeholderRegex = new Regex("({{.+?}})");
        var placeHolders = from d in mydoc.Descendants()
                               where d.DescendantNodes()
                                      .OfType<XText>()
                                      .Any(o => o.Parent == d && _placeholderRegex.IsMatch(o.Value))
                               select d;
        foreach (var placeHolder in placeHolders)
        {
            //var result = placeHolder.Descendants().Where(o => o.Value == _placeholderRegex.M)
            Console.WriteLine(placeHolder.Value);
        }
    }
}

7 6 5 4 3 2 1 0 -1

Last Run:	8:47:12 pm
Compile:	0.113s
Execute:	0s
Memory:	0b
CPU:	0s

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