Function formulaCriteriaEval

calc.go:1874–1895

formulaCriteriaEval evaluate formula criteria expression.

(val formulaArg, criteria *formulaCriteria)

// formulaCriteriaEval evaluate formula criteria expression.
func formulaCriteriaEval(val formulaArg, criteria *formulaCriteria) (result bool, err error) {
	s := NewStack()
	tokenCalcFunc := map[byte]func(rOpd, lOpd formulaArg, opdStack *Stack) error{
		criteriaEq: calcEq,
		criteriaNe: calcNEq,
		criteriaL:  calcL,
		criteriaLe: calcLe,
		criteriaG:  calcG,
		criteriaGe: calcGe,
	}
	switch criteria.Type {
	case criteriaEq, criteriaLe, criteriaGe, criteriaNe, criteriaL, criteriaG:
		if fn, ok := tokenCalcFunc[criteria.Type]; ok {
			if _ = fn(criteria.Condition, val, s); s.Len() > 0 {
				return s.Pop().(formulaArg).Number == 1, err
			}
		}
	case criteriaRegexp:
		return regexp.MatchString(criteria.Condition.Value(), val.Value())
	}
	return
}

// Engineering Functions