using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"[-+]?(?<!\d\.)\b[0-9]+(?:[,\s][0-9]+)*\.[0-9]+(?:[eE][-+]?[0-9]+)?\b(?!\.\d)";
string input = @"-1.34e+32 +1.34e-32 .34e+32 .34 .3 34 .3e 123.456.789 Seq1..2.3.4.5 -.56 +.78
12 123 456.23 34,345,767.678
";
foreach (Match m in Regex.Matches(input, pattern))
{
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