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C#-Quelltext

if (Document.Text == "#include")
            {
            Document.ForeColor = System.Drawing.Color.Blue;
            }

C#-Quelltext

private void ApplySyntaxHighlighting()
        {
            Regex keyWordsBlue = new Regex("if |then |else |fi |true |while |do |done |set |export |bool |break |case |class |const |for |foreach |goto |in |void |if\n|then\n|else\n|fi\n|true\n|while\n|do\n|done\n|set\n|export\n|bool\n|break\n|case\n|class\n|const\n|for\n|foreach\n|goto\n|in\n|void\n");
            // Select all and set to black so that it's 'clean'
            Document.SelectAll();
            Document.SelectionColor = Color.Black;

            // Then unselect and scroll to the end of the file
            Document.ScrollToCaret();
            Document.Select(Document.Text.Length, 1);

            // Start applying the highlighting... Set a value to selPos
            int selPos = Document.SelectionStart;

            foreach (Match keyWordMatch in keyWordsBlue.Matches(Document.Text))
            {
                // Select the word..
                Document.Select(keyWordMatch.Index, keyWordMatch.Length);
                // Change it to blue
                Document.SelectionColor = Color.Blue;
                // Set it to bold for this example
                Document.SelectionFont = new Font(Document.SelectionFont, FontStyle.Bold);
                // Move cursor back to where it was
                Document.SelectionStart = selPos;
                // Change the default font color back to black.
                Document.SelectionColor = Color.Black;
            }
        }
        private void Document_TextChanged_1(object sender, EventArgs e)
        {
            ApplySyntaxHighlighting();
            
        }