466     content = None  # Optional content matching pattern  variable in BasePattern
475         args = [type_repr(self.type), self.content, self.name]
501         if self.content is not None:
536     def __init__(self, type=None, content=None, name=None):  argument
550         if content is not None:
551             assert isinstance(content, basestring), repr(content)
553         self.content = content
575         return self.content == node.value
582     def __init__(self, type=None, content=None, name=None):  argument
600         if content is not None:
601             assert not isinstance(content, basestring), repr(content)
602             content = list(content)
603             for i, item in enumerate(content):
608         self.content = content
625             for c, r in generate_matches(self.content, node.children):
631         if len(self.content) != len(node.children):
633         for subpattern, child in zip(self.content, node.children):
653     def __init__(self, content=None, min=0, max=HUGE, name=None):  argument
677         if content is not None:
678             content = tuple(map(tuple, content))  # Protect against alterations
680             assert len(content), repr(content)  # Can't have zero alternatives
681             for alt in content:
683         self.content = content
691         if (self.content is not None and
692             len(self.content) == 1 and len(self.content[0]) == 1):
693             subpattern = self.content[0][0]
695             if self.content is None:
701             return WildcardPattern(subpattern.content,
734         if self.content is None:
775         for alt in self.content:
786                     for alt in self.content:
804             for leaf in self.content:
814         assert self.content is not None
818             for alt in self.content:
829     def __init__(self, content=None):  argument
838         if content is not None:
839             assert isinstance(content, BasePattern), repr(content)
840         self.content = content
851         if self.content is None:
857             for c, r in self.content.generate_matches(nodes):