using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"-?0+\.(0)+\b|\.0+\b|\b0+(?=\.\d*[1-9])|\b0+(?=[1-9]\d*\.)|(\.\d*?)0+\b";
string substitution = @"$1$2";
string input = @"0.00,-0.00,00.00,-00.00,40.00,-40.00,4.0,-4.0,4.01,-4.01,04.01,-04.01,004.04,-004.04,0004.040,-0004.040,101,.40,-.40,0.40,-0.40
";
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