General Categories Pe, Pf, Pi, Ps

Marius Spix via Unicode <[email protected]> Fri, 16 Jan 2026 16:06:03 +0000
Newsgroups gmane.text.unicode.general
Message-ID <trinity-24dc2560-3512-404a-9f2a-f570e5b75989-1768579563036@trinity-msg-rest-webde-webde-live-589d84f6c9-ghkzc>
I wonder what is the point of the General Categories Pe, Pf, Pi and Ps?

Different languages use different quotation marks, for example:

English:  “ (U+201C, Pi) + ” (U+201D, Pf)
German: „ (U+201E, Ps) + “ (U+201C, Pi)
Polish: „ (U+201E, Ps) + ” (U+201D, Pf)

How does a character classify as closing, final, initial, or opening punctation? Are there any general criteria?

Best regards,

Marius