The long ſ, which is only used in old Fraktur script, but not in modern Antiqua script, has the same issue.
Except that in Fraktur there are no all-caps words, so that the function to_upper() has no use in a Fraktur text anyway.
(For example, a modern Bible printed in Antiqua might have words like GOTT ‘GOD’, JESUS, der HERR ‘the LORD’, etc. printed in all-caps to mark them as sacred. In old Bibles printed in Fraktur, something like 𝔊𝔒𝔗𝔗, 𝔍𝔈𝔖𝔘𝔖 or 𝔡𝔢𝔯 ℌ𝔈ℜℜ is quite unthinkable because all-caps Fraktur words are basically illegible. What you can find in old Bibles is the use of two capitals at the beginning to emphasize words, e.g. 𝔊𝔒𝔱𝔱, 𝔍𝔈ſ𝔲𝔰, 𝔡𝔢𝔯 ℌ𝔈𝔯𝔯.)
Best wishes, Daniel -- Prof. Dr. Daniel Bunčić =============================================================== Slavisches Institut der Universität zu Köln Weyertal 137, D-50931 Köln Telefon: +49 (0)221 470-90535 Sprechstunden: https://uni.koeln/ENZEB E-Mail: [email protected] = [email protected] Threema: https://threema.id/8M375R5K =============================================================== Homepage: http://daniel.buncic.de/ Academia: http://uni-koeln.academia.edu/buncic ResearchGate: https://researchgate.net/profile/Daniel-Buncic-2 ===============================================================
