Never heard of an umlaut being used for a ditto mark, usually it’s a double quote: "
https://en.wikipedia.org/wiki/Ditto_mark
Guessing maybe there’s some keyboards which were missing quote/prime characters but had umlauts?
https://en.wikipedia.org/wiki/Ditto_mark
Guessing maybe there’s some keyboards which were missing quote/prime characters but had umlauts?
I was coding forms for tabular data, doing silly things because the printed manual made that too tempting, so any excuse to use a character or escape code sequence was fair game.
This was in an era when handwriting was commonly used so the convention for 'ditto' could be freestyled by me to be middle dots, umlauts or anything CHR(). The convenience of the keyboard, in an era before the PC was not really there.