Hi fantasai, A page from the unicode website says the categories idea has been withdrawn (and never formally approved): http://unicode.org/reports/tr49/
So, I think it's an "attempt". J. On 7 Mar 2012, at 05:27, fantasai wrote: > Unicode has a Pc category into which it assigns various low lines: > > _ U+005F LOW LINE > ‿ U+203F UNDERTIE > ⁀ U+2040 CHARACTER TIE > ⁔ U+2054 INVERTED UNDERTIE > ︳ U+FE33 PRESENTATION FORM FOR VERTICAL LOW LINE > ︴ U+FE34 PRESENTATION FORM FOR VERTICAL WAVY LOW LINE > ﹍ U+FE4D DASHED LOW LINE > ﹎ U+FE4E CENTRELINE LOW LINE > ﹏ U+FE4F WAVY LOW LINE > _ U+FF3F FULLWIDTH LOW LINE > > > However, the overlines that are almost exactly the same thing, are > categorized as Po: > > ‾ U+203E OVERLINE > ﹉ U+FE49 DASHED OVERLINE > ﹊ U+FE4A CENTRELINE OVERLINE > ﹋ U+FE4B WAVY OVERLINE > ﹌ U+FE4C DOUBLE WAVY OVERLINE > > Is this a bug or a feature? :) Shouldn't they be Pc? > > ~fantasai > >

