test_xml_etree.py 文件源码

def custom_builder():
    """
    Test parser w. custom builder.

    >>> with open(SIMPLE_XMLFILE) as f:
    ...     data = f.read()
    >>> class Builder:
    ...     def start(self, tag, attrib):
    ...         print("start", tag)
    ...     def end(self, tag):
    ...         print("end", tag)
    ...     def data(self, text):
    ...         pass
    >>> builder = Builder()
    >>> parser = ET.XMLParser(target=builder)
    >>> parser.feed(data)
    start root
    start element
    end element
    start element
    end element
    start empty-element
    end empty-element
    end root

    >>> with open(SIMPLE_NS_XMLFILE) as f:
    ...     data = f.read()
    >>> class Builder:
    ...     def start(self, tag, attrib):
    ...         print("start", tag)
    ...     def end(self, tag):
    ...         print("end", tag)
    ...     def data(self, text):
    ...         pass
    ...     def pi(self, target, data):
    ...         print("pi", target, repr(data))
    ...     def comment(self, data):
    ...         print("comment", repr(data))
    >>> builder = Builder()
    >>> parser = ET.XMLParser(target=builder)
    >>> parser.feed(data)
    pi pi 'data'
    comment ' comment '
    start {namespace}root
    start {namespace}element
    end {namespace}element
    start {namespace}element
    end {namespace}element
    start {namespace}empty-element
    end {namespace}empty-element
    end {namespace}root

    """