vi_motions.py 文件源码

def find_balanced_opening_bracket(self, start, brackets, unbalanced=0):
        new_start = start
        for i in range(unbalanced or 1):
            prev_opening_bracket = reverse_search_by_pt(self.view, brackets[0],
                                                        start=0,
                                                        end=new_start,
                                                        flags=LITERAL)
            if prev_opening_bracket is None:
                # Unbalanced brackets; nothing we can do.
                return
            new_start = prev_opening_bracket.begin()

        nested = 0
        while True:
            next_closing_bracket = reverse_search_by_pt(self.view, brackets[1],
                                                        start=prev_opening_bracket.a,
                                                        end=start,
                                                        flags=LITERAL)
            if not next_closing_bracket:
                break
            nested += 1
            start = next_closing_bracket.begin()

        if nested > 0:
            return self.find_balanced_opening_bracket(prev_opening_bracket.begin(),
                                                      brackets,
                                                      nested)
        else:
            return prev_opening_bracket.begin()