Purpose: collect code or links that apply to specific aspects of German language or culture
If you need the umlauted and other special characters used in German, here they are:
Ä \u00C4 Ö \u00D6 Ü \u00DC ä \u00E4 ö \u00F6 ü \u00FC ß \u00DF
Also note that "ß" (historically a ligature of "long-s" and "round-s") is an anomaly in case conversion - [string toupper ß] should result in the two characters SS, but in the other direction it is not decidable whether [string tolower SS] should result in "ss" or "ß". (RS)
DIN 66003 was a German national standard as a variation of ASCII, where the German umlauts, sharp s and paragraph sign were put in the ASCII (and today Unicode) positions of @ [ | ] { \ } ~. Here's a simple converter if you happen to deal with such strings:
interp alias {} din66003->u {} string map {
\x40 \xa7 \x5b \xc4 \x5c \xd6 \x5d \xdc \x7b \xe4
\x7c \xf6 \x7d \xfc \x7e \xdf
} ;# RSCategory Local | Things British | Things Japanese | Things Dutch