I noticed that many Adobe Std fonts include localized code for Turkish. For example, we find the following 'liga' feature in Optima Std Roman (as interpreted by FL5):
feature liga { # Standard Ligatures
script latn; # Latin
lookup liga4 {
sub f i by fi;
} liga4;
lookup liga5 {
sub f l by fl;
} liga5;
language TUR exclude_dflt; # INVALID LANGUAGE TAG 'TUR' - use 'TRK' instead
lookup liga5;
} liga;
Considering the fact that Std fonts from Adobe don’t actually include Idotaccent, Gbreve, gbreve, Scedilla, or scedilla (i.e. characters needed to support Turkish), is there any actual *benefit* to including this localization? Or is this simply someone blindly adding this because they’ve seen it done elsewhere?