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
