Order of outlines in a glyph

[Heinrich Wiedemann]

Hello Freetypers,

is there a rule in the TT-specs, saying how outlines are to be ordered
in a glyph ?
Usually inner boundaries (if any) are immediately following their
corresponding outer boundaries, but I found some symbol fonts
where 'islands' are before or much behind their outer boundary
and this causes some trouble in my app, which directly processes
the outlines.
Has anybody written a 'resequencer' for ill outlines ?

Thanks
Heinrich