It was my first time that I post something with a code example. For that post I ransacked wordpress plugin library for a code editor tool and found WP-Syntax. I was enthusiastic about that tool, until I saw the preview of this post. The HTML special character are not correctly displayed.

I googled some keywords described that issue and found the following posts that fixed my problem.

http://blog.felho.hu/escaping-problem-with-wp-syntax-wordpress-plugin.html

Just open the “wp-syntax.php” and do the two changes. It works.