The letter ß (Eszett) should be normalized to ss

[bmarotta]

Description

The letter ß should be normalized to ss and not s => https://en.wikipedia.org/wiki/%C3%9F

Expected outcome

normalizeSync("Muße") => "musse"

Actual outcome

normalizeSync("Muße") => "muse"

Versions of affected system

• 4.0.0

[bmarotta]

Actually your implementation is the opposite of what was expected. ß should be convert to ss and not s. You only needed to remove \u00DF from the "s" diacritics and leave the "ss" there.

See different articles and discussions about it:
https://www.lumenvox.com/knowledgebase/index.php?/article/AA-01895/0/TTS1-German-Text-Normalization.html
https://en.wikipedia.org/wiki/%C3%9F
https://groups.google.com/g/public-dns-discuss/c/G2Mk9Jn08FE?pli=1
https://www.denic.de/en/faqs/faqs-about-idns-ss#code-365
https://www.loc.gov/aba/pcc/naco/normrule-2.html

[motss]

@bmarotta Thanks for pointing the mistake out and all the references 😄 . Let me fix that real quick.