[dev-context] typo-dir.mkiv: Making the directions attribute global

[Wolfgang Schuster]

Hi Hans,

the example below shows a problems Idris has reported a few times.

When you enable the bidi mechanism it gets reset for

- footnotes,
- margin notes and
- header/footer texts,

because the attribute setting in typo-dir.mkiv doesn’t include the
"global" keyword.

%%%% type-dir.mkiv
\definesystemattribute[directions][public]
%%%%

Adding "global" to the second argument would fix the wrong output.


%%%% test.tex
\definefontfamily [mainface] [rm] [ALM Fixed] [features=arabic]

\setupbodyfont [mainface]

\setuplayout[backspace=5cm,width=middle,leftmargin=4cm]

\setupdirections [bidi=global]

\setupheadertexts[Test امتحان test]

\starttext

Test امتحان test\footnote{Test امتحان test}

Test امتحان test\inmargin{Test امتحان test}

\stoptext
%%%%

Wolfgang