Einfaches Text-Highlighting

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/*
[+] #region [Restliche Using-Direktiven]
*/
using System.Drawing;
using System.Windows.Forms;
using System.Text.RegularExpressions;

/*
[+] #region [Restlicher WindowsForms-Code]
*/

private void richTextBox1_TextChanged(object sender, EventArgs e)
{
    Regex exp = new Regex("Snippet");
    int select = richTextBox1.SelectionStart;
    
    foreach (Match m in exp.Matches(richTextBox1.Text))
    {
        richTextBox1.Select(m.Index, m.Value.Length);
        richTextBox1.SelectionColor = Color.Blue;
        richTextBox1.SelectionStart = select;
        richTextBox1.SelectionColor = Color.Black;
    }
}