コード例 #1
0
ファイル: search.py プロジェクト: jjcorreao/tako
    def __init__(self, text):
        """Create expression from text.

        :param text: Input text
        :type text: str
        :raise: ValueError if not a valid expression
        """
        parts = text.split()
        if len(parts) != 3:
            raise ValueError(self._op_errmsg.format(text))
        self._field = parts[0]
        oper_str = parts[1]
        self._val = parts[2]
        # if val is a date, then parse it and optionally modify operator
        _, mdate = parse.guess(self._val, try_num=False)
        if mdate is not None:
            self._val = mdate
            if self._field != common.Keyword.TIME:
                # time will have the value itself pre-parsed, but other
                # fields will not, so we indicate this in the operator
                oper_str = Oper.DATE_VALUE_PREFIX + oper_str
        elif self._field == common.Keyword.TIME:
            raise ValueError(
                "Cannot compare non-date to timestamp field ({}): {}".format(
                    self._field, self._val))
        self._op = Oper(oper_str)
コード例 #2
0
ファイル: search.py プロジェクト: jjcorreao/tako
    def compare(self, lhs, rhs):
        """Compare two values with this operator.

        :return: Boolean result of comparison
        :rtype: bool
        """
        if self._rhs_date:
            _, rhs_d = parse.guess(rhs)
            if rhs_d is None:
                return False  # Not a date; exception?
            rhs = rhs_d
        elif self._must_be_numeric:
            lhs = self._number(lhs)
            rhs = self._number(rhs)
            if lhs is None or rhs is None:
                return False  # Not a number; exception?
        return self._opfn(lhs, rhs)