using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^[,\h]+|\h*(,)(?:\h*,)+\h*|[,\h]+$";
string substitution = @"$1 ";
string input = @"GUWAHATI, TEZPUR, , BAMUNI HILLS, MAHABHAIRAB TEMPLE, AGNIGARH ,
GUWAHATI, TEZPUR , , BAMUNI HILLS,, MAHABHAIRAB TEMPLE, AGNIGARH,
GUWAHATI, , TEZPUR, , BAMUNI HILLS, MAHABHAIRAB TEMPLE, AGNIGARH";
RegexOptions options = RegexOptions.Multiline;
Regex regex = new Regex(pattern, options);
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