Thread:Extension talk:WYSIWYG/SyntaxHighlight (Version 1.0.8.10 - r115163) using GeSHi - Generic Syntax Highlighter/reply (3)

I think you should use instead of , otherwise it will not work with #6 bundle.

But even if you do so, it will change characters like <, > to html tags like &lt, &gt etc. in wysiwyg mode (at least in my environment). And you can input above xml code in wikitext mode only (like you described), if you try to input above xml code in wysiwyg mode, it will fail completely.

This seems to be too difficult issue for me to fix... help is highly appreciated.