Another try to fix Mongolian free variation selectors
This reverts bf029281 and fixes it properly. That commit
was not enough as it was only inheriting the shaping_action
for prev_action, but not curr_action.
Micro-test added.
https://code.google.com/p/chromium/issues/detail?id=393896
diff --git a/src/hb-unicode-private.hh b/src/hb-unicode-private.hh
index 6652015..a2c59da 100644
--- a/src/hb-unicode-private.hh
+++ b/src/hb-unicode-private.hh
@@ -122,8 +122,9 @@
static inline hb_bool_t
is_variation_selector (hb_codepoint_t unicode)
{
+ /* U+180B..180D MONGOLIAN FREE VARIATION SELECTORs are handled in the
+ * Arabic shaper. No need to match them here. */
return unlikely (hb_in_ranges (unicode,
- 0x180Bu, 0x180Du, /* MONGOLIAN FREE VARIATION SELECTOR ONE..THREE */
0xFE00u, 0xFE0Fu, /* VARIATION SELECTOR-1..16 */
0xE0100u, 0xE01EFu)); /* VARIATION SELECTOR-17..256 */
}
