QPlainTextEdit format text

[dridk2]

I would like to have a QPlainTextEdit which add space every 3 letter. For exemple :

ACG GTA CAT GTA 

Where Do I start ? QTextDocument ? QDocumentLayout ? QTextblock ... ?

[mrjj]

Im not sure what the overall goal is but
you could maybe cheat with an eventfilter and count the keypresses and
for every 3, send a keySpace also.