setPreviousRange

harfbuzz.types.Bool setPreviousRange(harfbuzz.set.Set set,  ref  harfbuzz.types.Codepoint first,  out  harfbuzz.types.Codepoint last)

nothrow

Fetches the previous consecutive range of elements in set that are greater than current value of last.

Set first to #HB_SET_VALUE_INVALID to get started.

`set`	A set
`first`	Input = The current first code point in the range
`Output`	The first code point in the range
`last`	The last code point in the range

true if there was a previous range, false otherwise