/* Do not break within emoji flag sequences. That is, do not
* break between regional indicator (RI) symbols if there is an
* odd number of RI characters before the break point.
- * GB12 ^ (RI RI)* RI × RI
+ * GB12 sot (RI RI)* RI × RI
* GB13 [^RI] (RI RI)* RI × RI */
while (backup_one_GCB(strbeg,
* only if there are an even number of regional indicators
* preceding the position of the break.
*
- * sot (RI RI)* RI × RI
+ * sot (RI RI)* RI × RI
* [^RI] (RI RI)* RI × RI */
while (backup_one_LB(strbeg,
* odd number of RI characters before the potential break
* point.
*
- * WB15 ^ (RI RI)* RI × RI
+ * WB15 sot (RI RI)* RI × RI
* WB16 [^RI] (RI RI)* RI × RI */
while (backup_one_WB(&previous,