listing a new value in font table files

[Janek Warchoł]

Summary: flag glyphs need an additional value listed in table files.
Should it be added to feta**.otf-table files or another table file
should be created?

The problem is that this value is specific to flags and it won't make
sense in other glyphs - but would it make sense to have glyphs with
different amount of characteristics in one table file?  Should we
split table files (have separate tables for flags and for exerything
else)?  Or maybe only the additional value should be in a separate
table?

Illustration of how it might look like: instead of

(flags.u3 .
((bbox . (-0.000000 -15.251400 4.505070 0.325030))
(subfont . "feta-noteheads20")
(subfont-index . 176)
(attachment . (4.505070 . 0.000000))))

there would be

(flags.u3 .
((bbox . (-0.000000 -15.251400 4.505070 0.325030))
(optimal-stem . 3.500000)
(subfont . "feta-noteheads20")
(subfont-index . 176)
(attachment . (4.505070 . 0.000000))))

cheers,
Janek