using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?<![#\d{])\d+(?!\w*(?:}|(?:st|th|rd|nd)\b))";
string input = @"123abd //should match 123
abc345 //should match 234
ab2123cd // should match 2123
{2}: Should NOT Match. //My regex Works
{34: Should NOT Match. //My regex matches 4 in {34
45}: Should NOT Match. //My regex matches 4 in {45
{123}: Should NOT Match. //My regex matches 2 in {123}
1st should NOT match
3th should NOT match, since it's wrong anyway
1nd should NOT match, since it's wrong anyway
14th //should NOT Match
14 th should Match
like 1st, 2nd, etc or #1, #2, etc";
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