Пример #1
0
    def replace(self, minquality=0):
        a = self.a
        b = self.b
        a_active = a.is_active()
        b_active = b.is_active()

        if not a_active:
            return mcore.NullMatcher()
        elif minquality and b_active:
            if a.max_quality() + b.max_quality() < minquality:
                # If the combined max quality of the sub-matchers isn't high
                # enough to possibly contribute, return an inactive matcher
                return mcore.NullMatcher()
            elif a.max_quality() < minquality:
                # If the max quality of the main sub-matcher isn't high enough
                # to ever contribute without the optional sub- matcher, change
                # into an IntersectionMatcher
                return IntersectionMatcher(self.a, self.b)
        elif not b_active:
            return a.replace(minquality)

        new_a = a.replace(minquality - b.max_quality())
        new_b = b.replace(minquality - a.max_quality())
        if new_a is not a or new_b is not b:
            # If one of the sub-matchers changed, return a new AndMaybe
            return self.__class__(new_a, new_b)
        else:
            return self
Пример #2
0
    def replace(self, minquality=0):
        a = self.a
        b = self.b
        a_active = a.is_active()
        b_active = b.is_active()

        # If neither sub-matcher on its own has a high enough max quality to
        # contribute, convert to an intersection matcher
        if minquality and a_active and b_active:
            a_max = a.max_quality()
            b_max = b.max_quality()
            if a_max < minquality and b_max < minquality:
                return IntersectionMatcher(a, b).replace(minquality)
            elif a_max < minquality:
                return AndMaybeMatcher(b, a)
            elif b_max < minquality:
                return AndMaybeMatcher(a, b)

        # If one or both of the sub-matchers are inactive, convert
        if not (a_active or b_active):
            return mcore.NullMatcher()
        elif not a_active:
            return b.replace(minquality)
        elif not b_active:
            return a.replace(minquality)

        a = a.replace(minquality - b.max_quality() if minquality else 0)
        b = b.replace(minquality - a.max_quality() if minquality else 0)
        # If one of the sub-matchers changed, return a new union
        if a is not self.a or b is not self.b:
            return self.__class__(a, b)
        else:
            self._id = None
            return self
Пример #3
0
    def replace(self, minquality=0):
        a = self.a
        b = self.b
        a_active = a.is_active()
        b_active = b.is_active()

        # DisMax takes the max of the sub-matcher qualities instead of adding
        # them, so we need special logic here
        if minquality and a_active and b_active:
            a_max = a.max_quality()
            b_max = b.max_quality()

            if a_max < minquality and b_max < minquality:
                # If neither sub-matcher has a high enough max quality to
                # contribute, return an inactive matcher
                return mcore.NullMatcher()
            elif b_max < minquality:
                # If the b matcher can't contribute, return a
                return a.replace(minquality)
            elif a_max < minquality:
                # If the a matcher can't contribute, return b
                return b.replace(minquality)

        if not (a_active or b_active):
            return mcore.NullMatcher()
        elif not a_active:
            return b.replace(minquality)
        elif not b_active:
            return a.replace(minquality)

        # We CAN pass the minquality down here, since we don't add the two
        # scores together
        a = a.replace(minquality)
        b = b.replace(minquality)
        a_active = a.is_active()
        b_active = b.is_active()
        # It's kind of tedious to check for inactive sub-matchers all over
        # again here after we replace them, but it's probably better than
        # returning a replacement with an inactive sub-matcher
        if not ((a_active and b_active)):
            return mcore.NullMatcher()
        elif not (a is self.a and b is self.b):
            # If one of the sub-matchers changed, return a new DisMax
            return self.__class__(a, b)
        else:
            return self
Пример #4
0
    def replace(self, minquality=0):
        if not self.a.is_active():
            # The a matcher is required, so if it's inactive, return an
            # inactive matcher
            return mcore.NullMatcher()
        elif minquality and self.a.max_quality() < minquality:
            # If the quality of the required matcher isn't high enough to
            # contribute, return an inactive matcher
            return mcore.NullMatcher()
        elif not self.b.is_active():
            # If the prohibited matcher is inactive, convert to just the
            # required matcher
            return self.a.replace(minquality)

        a = self.a.replace(minquality)
        b = self.b.replace()
        if a is not self.a or b is not self.b:
            # If one of the sub-matchers was replaced, return a new AndNot
            return self.__class__(a, b)
        else:
            return self
Пример #5
0
    def replace(self, minquality=0):
        a = self.a
        b = self.b
        a_active = a.is_active()
        b_active = b.is_active()

        if not (a_active and b_active):
            # Intersection matcher requires that both sub-matchers be active
            return mcore.NullMatcher()

        if minquality:
            a_max = a.max_quality()
            b_max = b.max_quality()
            if a_max + b_max < minquality:
                # If the combined quality of the sub-matchers can't contribute,
                # return an inactive matcher
                return mcore.NullMatcher()
            # Require that the replacements be able to contribute results
            # higher than the minquality
            a_min = minquality - b_max
            b_min = minquality - a_max
        else:
            a_min = b_min = 0

        a = a.replace(a_min)
        b = b.replace(b_min)
        a_active = a.is_active()
        b_active = b.is_active()
        if not (a_active or b_active):
            return mcore.NullMatcher()
        elif not a_active:
            return b
        elif not b_active:
            return a
        elif a is not self.a or b is not self.b:
            return self.__class__(a, b)
        else:
            return self