true if there was a previous range, false otherwisesetPreviousRange
fn
harfbuzz.types.Bool setPreviousRange(harfbuzz.set.Set set, ref harfbuzz.types.Codepoint first, out harfbuzz.types.Codepoint last)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.
Parameters
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 |