Roozbeh provided an updated Arabic system UI font which does positioning
properly (using the GPOS mechanism, which is now fully supported in text
rendering), as opposed to the old workaround of using GSUB combinations.
It contains the following additional fixes:
1. Removed the new glyphs and relevant table fields created by GPOS2GSUB
2. [Kept empty glyphs for ZWSP, ZWNJ, and ZWJ]
3. Fixed a wrong GSUB substitution for Urdu Seven
4. Fixed shaping of U+06C1 HEH GOAL
5. Fixed shaping of U+06BA NOON GHUNNA
6. Removed the Rial ligature from the GSUB table
7. Tightened the Alef-Lam-Lam-Heh ligature in the GSUB table which was
getting triggered too frequently
This change just checks in the above work. I did a sanity-check
verification that Arabic text still renders reasonably in the system UI,
but did not check the above cases carefully.
Change-Id: Ie5fb9fd78d21bbfcd62b86deb327a5a2ae9321c6
- bug #5987379 Need an Arabic font with metrics "compatible" with Roboto
- use the Alt version with GSUB optimizations
Change-Id: I4d8c62cab37a7b010abab602c39899084d347fdc
