xmlclass.py 文件源码

def GetAttributeValue(attr, extract=True):
    """
    Function that extracts data from a tree node
    @param attr: tree node containing data to extract
    @param extract: attr is a tree node or not
    @return: data extracted as string
    """
    if not extract:
        return attr
    if len(attr.childNodes) == 1:
        return unicode(unescape(attr.childNodes[0].data))
    else:
        # content is a CDATA
        text = u''
        for node in attr.childNodes:
            if not (node.nodeName == "#text" and node.data.strip() == u''):
                text += unicode(unescape(node.data))
        return text