Reveal code, old macros convert them to LO

From time to time the question pops up whether LO could support
Wordperfects reveal code. Sometimes it is stated that this feature could
be implemented by a macro/extension.

Now I remember that long time ago such macros existed and using the
wayback machine I found them. They were written around 2005 for OO 1.2,
using the sxw format.

I tried them out in LO 6.2 and they don't work.

Is there somebody with enough knownledge in macros to translate those
macros to LO 6.2?

Thanks and regards

Uwe Brauer