different glyphs for tonos and oxia #214
Description
Although oxia is tonos (that is, the monotonic Greek accent is acute), all fonts that contains both accented glyphs (see below) have different inclination for both accents.
This is problematic with polytonic Greek, because both acute and grave accents are mixed,
Uppercase letters are fine, but first line in lowercase letters displays the right combination (with acute) while the second line in lowercase letters shows the problem (with accent).
Since OpenType allows a local feature that replaces tonos with oxia and polytonic Greek is defined as language, @frankrolf,
how about the following feature for polytonic Greek in the Source typeface family?
feature locl {
@tonosuppercase = [Alphatonos Epsilontonos Etatonos Iotatonos
Omicrontonos Omegatonos Upsilontonos];
@tonoslowercase = [alphatonos epsilontonos etatonos iotatonos
iotadieresistonos omicrontonos omegatonos
upsilontonos upsilondieresistonos];
@oxiauppercase = [uni1FBB uni1FC9 uni1FCB uni1FDB uni1FF9
uni1FFB uni1FEB];
@oxialowercase = [uni1F71 uni1F73 uni1F75 uni1F77 uni1FD3
uni1F79 uni1F7D uni1F7B uni1FE3];
script grek;
language PGR exclude_dflt;
lookup TonosOxia {
sub @tonosuppercase by @oxiauppercase;
sub @tonoslowercase by @oxialowercase;
} TonosOxia;
} locl;