mit 6.00

problem set 6 mit 6.00
problem 11

def makeTrigger(triggerMap, triggerType, params,name):
    if triggerType == "TITLE":
        trigger = TitleTrigger(params[0])

    elif triggerType == "SUBJECT":
        trigger = SubjectTrigger(params[0])

    elif triggerType == "SUMMARY":
        trigger = SummaryTrigger(params[0])

    elif triggerType == "NOT":
        trigger = NotTrigger(triggerMap[params[0]])

    elif triggerType == "AND":
        trigger = AndTrigger(triggerMap[params[0]], triggerMap[params[1]])

    elif triggerType == "OR":
        trigger = OrTrigger(triggerMap[params[0]], triggerMap[params[1]])

    elif triggerType == "PHRASE":
        trigger = PhraseTrigger(" ".join(params))

    else:
        return None