conditionKeyIndex method

Parser<ConditionKeyIndex> conditionKeyIndex()

Implementation

Parser<ConditionKeyIndex> conditionKeyIndex() => (char('[').trim() &
            (char('-').optional() & digit().plus()).flatten() &
            char(']').trim())
        .map((l) {
      var idx = int.parse(l[1]);
      return ConditionKeyIndex(idx);
    });