2016-11-23 12:00 GMT+01:00 Tom Hacohen <t...@osg.samsung.com>: > > Also take another look at http://www.unicode.org/reports > /tr29/#Grapheme_Cluster_and_Format_Rules specifically the table that > shows another way of writing the ignore rule. This again shows my > understanding of rule 4 is correct. > > Specially look at the following equivalence: > X Y × Z W ⇒ X (Extend | Format)* Y (Extend | Format)* × Z > (Extend | Format)* W >
This expansion does not occur before rule WB4; it cannot be used to transform rules WB1 to WB3c; this is explicitly stated in the algorithm. And because the rule WB3c handles your case, you are misinterpreting the specs as if it was applying there too...
