Regular Expressions help

[Souloron]

So basically I made a kind of html editor, where u can type ur html code... now I want to make code inside < > blue (including the <, >) I already made it ignore stuff like <> and < (how many spaces, doesnt matter) > becuase it basically does print those stuff to web (thats how html works)

Now it works great and all, but when I do something like this:

<br
>

It doesnt make that text blue... this is my code:

        private void richTextBox1_TextChanged(object sender, EventArgs e)
        {
            int selectionStart = this.richTextBox1.SelectionStart;
            Regex regexObj = new Regex(this.richTextBox1.Text, RegexOptions.Singleline);
            Match matchObj = Regex.Match(this.richTextBox1.Text, "<.*?>");
            while (matchObj.Groups.SyncRoot.ToString() != "")
            {
                string str = matchObj.Groups.SyncRoot.ToString();
                if(str != "<>")
                {
                    int pass = 0;
                    for (int i = 1; i < str.Length - 1; i++)
                    {
                        if (str[i].ToString() != " ")
                        {
                            pass = 1;
                        }
                    }
                    if (pass == 1)
                    {
                        this.richTextBox1.SelectionStart = matchObj.Index;
                        this.richTextBox1.SelectionLength = matchObj.Length;
                        if (this.richTextBox1.SelectionColor != Color.Blue)
                        {
                            this.richTextBox1.SelectionColor = Color.Blue;
                        }
                    }
                }
                matchObj = matchObj.NextMatch();
            }
            this.richTextBox1.SelectionStart = selectionStart;
            this.richTextBox1.SelectionLength = 0;
            this.richTextBox1.SelectionColor = Color.Black;
        }
 

[kenobewan]

What happens if you comment out the last three lines and uncomment them one at a time?

/*this.richTextBox1.SelectionStart = selectionStart;
            *this.richTextBox1.SelectionLength = 0;
            *this.richTextBox1.SelectionColor = Color.Black;*/

[Souloron]

I made it so if ur in the middle on the richTextBox so it comes back to that location after it colors what is needed to be colored... u wont all of a sudden start from the end of the richTextbox writing.