+ * @stable ICU 4.6
+ */
+ UIDNA_NONTRANSITIONAL_TO_UNICODE=0x20,
+ /**
+ * IDNA option to check for whether the input conforms to the CONTEXTO rules.
+ * For use in static worker and factory methods.
+ * <p>This option is ignored by the IDNA2003 implementation.
+ * (The CONTEXTO check is new in IDNA2008.)
+ * <p>This is for use by registries for IDNA2008 conformance.
+ * UTS #46 does not require the CONTEXTO check.
+ * @stable ICU 49