Yesterday you helped me to solve a remotely similar
issue! But
try&error (with superficial knowledge) isn't the right approach to something serious like that, I think!
How to convert
'fully wrapped' headings to upper case? Please consider the richness of German: that is the existence of äöüß (apart from »«!? plus digits).
Code:
<h3 id="uoiDbz7uDaeECwRVEqYwYE5"><a href="Inhalt.html#Die 9 »weißen« Städte!">Die 9 »weißen« Städte!»</a></h3>
Wanted result: <h3...>
DIE 9 »WEIßEN« STÄDTE!</a></h3>