using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^[\t\p{Zs}]*\([\pZs}\t](?:[^()\n]*[\pZs}\t])?\)[\pZs}\t]*$";
string input = @" ( )
( This is a comment )
1 2 +
\ a
: square dup * ;
( foo bar
baz )
(quux)
( ( )
(
( )";
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