using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?:\$\w+(?:\((?<arg>(?R)|(?:\""[^\""]*\"")|(?:[^\$\""\&\s\(\)][^\s\(\)]*))(?:(?:\+| )(?&arg))*\))?)|(?<var>\&\w+)";
string input = @"$test($test(test &var1 $var2) $test(jean) jean) # should full-match
$test($test(test $var1 $var2) $test(foo) bar) # should not full-match
$test(""&test"") # should not full-match
$test(""foo&test"") # should not full-match
$test(""&test"" &test) # should full-match
&test # should full-match
$test("" &test"") # should not full-match
$test # should not full-match
&test(foo) # should not full-match
&test(&foo $bar()) # should not full-match
$test((&test)) # should not full-match
$foo(bar(&baz)) # should not full match
$test(&test &test) # should not full match
$test( &test) # should not full match
$test(&test ) # should not full match";
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