Пример #1
0
def evalSequence(exps, env, cont):
    def c(val):
        return evalSequence(expressions.restExps(exps), env, cont)
    if expressions.isLastExp(exps):
        return teval(expressions.firstExp(exps), env, cont)
    else:
        return teval(expressions.firstExp(exps), env, c)
Пример #2
0
def evalSequence(exps, env, cont):
    def c(val):
        return evalSequence(expressions.restExps(exps), env, cont)

    if expressions.isLastExp(exps):
        return teval(expressions.firstExp(exps), env, cont)
    else:
        return teval(expressions.firstExp(exps), env, c)
Пример #3
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def analyzeSequence(exps):
    def sequentially(analyzedFirst, analyzedSecond):
        def c(env, cont):
            def c_first_exec(ignoredVal):
                return pogo.bounce(analyzedSecond, env, cont)
            return pogo.bounce(analyzedFirst, env, c_first_exec)
        return c
    if pair.isNull(exps):
        raise SchemeError, "Empty sequence -- ANALYZE"

    analyzedSeqs = analyze(expressions.firstExp(exps))
    exps = expressions.restExps(exps)
    while not pair.isNull(exps):
        analyzedSeqs = sequentially(analyzedSeqs,
                                    analyze(expressions.firstExp(exps)))
        exps = expressions.restExps(exps)
    return analyzedSeqs