[sinhala-technical] Pregress on Mac font (v0.6 now available)

[Nicholas S. <co...@ni...>]

Progress on Mac Sinhala font to report.
download from http://web.nickshanks.com/typography/

Fixed the rearrangement of vowels completely now, following  
discussions with a guy at Apple (I was reading the v1.0 docs, AAT v1.1  
has glyph insertion, doh!)

Known missing glyphs:
nyja = ☹
nga.i = missing
nga.ii = missing
jnya.al = ☹
jnya.u = ☹
jnya.uu = ☹
VVL = ☹
VVLL = ☹
_Vll = ☹

☹ means the glyph for the character is in the font but Pushpananda  
made a sad face instead of what the glyph should be. These might be  
better removed altogether so that fallback can happen properly.


The font now mostly passes tests 1 and 2 by Anuradha Ratnaweera,
http://www.sayura.net/anuradha/sinhala/unicode/test/
with the following exceptions (other than combinations which include  
one of the missing glyphs listed above):
u+0D9E u+0DD2 (produces overlapping consonant & vowel paths)
u+0D9E u+0DD3 (produces overlapping consonant & vowel paths
u+0DA4 u+0DCF (extra _aa glyph)
u+0DA4 u+0DD0 (extra _ae glyph, only one dangly bit - is this okay?)
u+0DA4 u+0DD1 (extra _aee glyph, only one dangly bit)
u+0DA5 u+0DCF (extra _aa glyph)
u+0DA5 u+0DD0 (extra _ae glyph, only one dangly bit)
u+0DA5 u+0DD1 (extra _aee glyph, only one dangly bit)
u+0DA5 u+0DDC (extra _aa glyph)
u+0DA5 u+0DDD (extra _aa glyph, _al glyph is on _aa not on consonant)
u+0DAB u+0DD3 and variants look different from picture, could just be  
artistic difference

I still can't get the zwj character to be recognised and consumed by  
the first rule in the MIF, so test three fails miserably.
I have also *removed* the handling of ra and ya when not preceeded by  
a zwj, so these now display as full consonants rather than always  
forming the rakar and yansaya. Is this better or worse for the time  
being?


Currently there are some ununsed glyphs from PC font:
_i3
_ii3
repha
repha2
rakar2

Does the PC font use these at all?

— Nicholas Shanks.