avail/avail.descriptor.tuples/A_String/SurrogateIndexConverter/javaIndexToAvailIndex

javaIndexToAvailIndex

fun javaIndexToAvailIndex(javaZeroIndex: Int): Int
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Convert from a zero-based index into a Java string, which contains only code points in 0..0xFFFF, using two to represent Unicode values in 0x10000-0x10FFFF, into zero-based index into an Avail string, which can contain arbitrary code points.