range_map 0.2.1

A mapping from disjoint nonempty ranges to values.

example/range_map_example.dart

import 'package:range_map/range_map.dart';

main() {
  final range = new Range<int>(3, 5); // 3 inclusive, 5 exclusive
  final rangeMap = new TreeRangeMap<int, String>();

  rangeMap[range] = 'foo';

  print('${rangeMap.containsKey(3)}'); // true
  print('${rangeMap[3]}'); // 'foo'

  print('${rangeMap.containsKey(4)}'); // true
  print('${rangeMap[4]}'); // 'foo'

  print('${rangeMap.containsKey(5)}'); // false
  print('${rangeMap[5]}'); // null

  print('${rangeMap.containsKey(6)}'); // false
  print('${rangeMap[6]}'); // null
}