using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(\{\{\s*[Cc]oord\s*(?:\|(?:[^\{\}]*\{\{[^\{\}]*\}\})?[^\{\}]*)?)\|\s*name\s*=[^\|\{\}]*((?:\|(?:[^\{\}]*\{\{[^\{\}]*\}\})?[^\{\}]*)?\}\})";
string substitution = @"\1\2";
string input = @"1. {{Coord|a=b|name=foo}}
2. {{coord|name=foo|a=b}}
3. {{ Coord
| name = foo
| a = b }}
4. {{coord|name=foo|a={{b}}}}
5. {{coord|a={{b}}|name=foo}}
6. {{coord|a={{b|{{c}}}}|name=foo}} <!-- fails -->
5. {{coord|a=b|name={{foo}}}} <!-- fails -->
";
Regex regex = new Regex(pattern);
string result = regex.Replace(input, substitution);
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx