using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(.*?'hello'.*?),'hello',(.*)";
string substitution = @"$1,0,$2";
string input = @"'one',2,'three','hello','xyz',5,'hello','mnr','hello','axi'
'onae',2,'tree','hello','xyz',6,'hello','mnr','hello','asd'
'onee',2,'xdsa','hello','xyz',5,'hello','mnr','hello','aew'
'owne',2,'thr','hello','xyz',3,'hello','mnr','hello','az'
'ocne',2,'tee','hello','xyz',5,'hello','mnr','hello','zse'
'owne',2,'tre','hello','xyz',2,'hello','mnr','hello','aai'";
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