using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"£(?:1(?:[0-4](?:[0-9]?(?:[.,][0-9]{1,2})?)?|5(?:[0-4](?:[.,][0-9]{1,2})?|5(?:[.,]00?)?)|[6-9]?(?:[.,][0-9]{1,2})?)?|[2-9][0-9]?(?:[.,][0-9]{1,2})?)(?![.,]?[0-9])";
string input = @"£155.12
£155
£1
£124,44";
RegexOptions options = RegexOptions.Multiline | RegexOptions.IgnorePatternWhitespace;
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