Render a zone's allocated numbers as a compact display range — "4–8" for a run, "4" for a single number, "" when the zone has no weight and can never be rolled.
"4–8"
"4"
""
The zone's ascending run of zone numbers.
The display string for the zone's roll range.
Render a zone's allocated numbers as a compact display range —
"4–8"for a run,"4"for a single number,""when the zone has no weight and can never be rolled.