[GPOS] If an Anchor offset is NULL, return false
authorBehdad Esfahbod <behdad@behdad.org>
Tue, 8 Jan 2013 22:15:46 +0000 (16:15 -0600)
committerBehdad Esfahbod <behdad@behdad.org>
Tue, 8 Jan 2013 22:17:06 +0000 (16:17 -0600)
commite95e031b5682809488cc965883e15404cb9cfb6a
treef3a050de258cb76eaaf1c460d7b0ca335bfe9217
parente5dbf39900fa63051f64cc447a6742665cbee339
[GPOS] If an Anchor offset is NULL, return false

If in a MarkPos table, a base has no anchor for a particular mark class,
return NULL such that the subsequent subtables get a chance at it.

Test case:
hb-shape ./EBGaramond12-Regular.otf ἂ --features="ss20","smcp"
src/hb-open-type-private.hh
src/hb-ot-layout-gpos-table.hh