using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"[""'%] # first possible character
(?:(?<=%)q<)? # if preceded by a % match ""q<""
(?P<name> # the three possibilities excluding the delimiters
(?<="") [a-zA-Z0-9_.-]+ (?="") |
(?<=') [a-zA-Z0-9_.-]+ (?=') |
(?<=<) [a-zA-Z0-9_.-]+ (?=>)
)
[""'>] # closing delimiter";
string input = @"""gemname1""
'gemname2'
%q<gemname3>";
RegexOptions options = 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