using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^I\([^()]*\){(?:\R(?!}|.*n=Marc).*)*\R.*\bn=Marc\b.*(?:\R(?!}).*)*\R}$";
string input = @"I(0,123...789){
A(0,567...999){.......n=Marc.....}
B(2,655...265){..................}
C(3,993...333){..................}
M(8,635...254){.................;}
}
O(0,345...789){
A(0,567...999){.......n=Marc.....}
B(2,876...775){..................}
C(3,993...549){..................}
M(8,354...987){.................;}
}
I(0,987...764){
A(0,567...999){.......n=Marc.....}
B(2,543...265){..................}
C(7,998...933){..................}
M(8,645...284){.................;}
}
B(0,123...789){
.......
}
I(0,987...764){
A(0,567...999){.......n=John.....}
B(2,543...265){..................}
C(7,998...933){..................}
M(8,645...284){.................;}
}";
RegexOptions options = RegexOptions.Multiline;
foreach (Match m in Regex.Matches(input, pattern, options))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
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