using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^-?(0|1000|[1-9]\d{0,2})(?:\.\d{1,2})?$";
string input = @"001
01
-0
0
-1
1
10
-10
-1000
-999.99
0001
1000
1001
10000
-1000
0.001
0.01
0.1
0032
1.2
0.2
-0.2
123
100
199
233
459
999
888
-999
-888
-123.21
-021.32
9999
-1.010
01.32
99.99
0
-1.2";
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