using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?<![\da-z])(?:([a-z]+(?=\d)|\d+(?=[a-z]))((?<=\d)[a-z]+|(?<=[a-z])\d+))(?![\da-z])";
string substitution = @"$1 $2";
string input = @"abc21"" or ""943xyz
""a12bc"",
""11a12bc"", ";
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