using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?<!\s)(?<!since)\s*1\.0\.0";
string input = @"/**
* @since 1.0.0 <--- this shouldn't be matched
* @package blah blah blah
* Version: 1.0.0 <--- this should be matched
*/
/**
* Fired during plugin activation.
*
* This class defines all code necessary to run during the plugin's activation.
*
* @since 1.0.0 <--- this shouldn't be matched
* @package blah blah
* @subpackage blah blah
* @author blah blah
*/
define( 'PLUGIN_VERSION', '1.0.0' ); // <--- this should be matched
";
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