[lltx] [luatexbase] Change in the behaviour of \newluatexattribute ?

Khaled Hosny khaledhosny at eglug.org
Fri May 21 14:42:27 CEST 2010

After spending most of the day debugging why Arabic shaping is broken in
the luaotfload, it turned out to be an attribute issue. The first
allocated attribute by \newluatexattribute is 0 and ConTeXt code don't
seem to like that, it specifically expects attributes used in luaotfload
to be < 255 and > 127.

The problem didn't show before switch to luatexbase, so I expect there
was some change in how \newluatexattribute allocates new attributes.
Also, to avoid any other hidden surprises, is there a way for luaotfload
to assign attributes in the aforementioned range in a way that works
nicely with the attributes package?


 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer

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