Robot Framework 代码21之minidomwrapper.py

from xml.dom import minidom
from StringIO import StringIO

from abstractdomwrapper import AbstractDomWrapper


class DomWrapper(AbstractDomWrapper):
    
    """A wrapper for Python's XML DOM for simplifying reading data from it.
   
    See documentation of AbstractDomWrapper for further usage information.
    """

    def __init__(self, path=None, string=None, node=None):
        """Initialize by giving 'path' to an xml file or xml as a 'string'.
       
        Alternative initialization by giving dom 'node' ment to be used only
        internally. 'path' may actually also be an already opened file object
        (or anything accepted by minidom.parse).
        """
        AbstractDomWrapper.__init__(self, path)
        if node is None:
            node = self._get_root(path, string)
        self.name = node.tagName
        self.attrs = dict(node.attributes.items())
        text = []
        for child in node.childNodes:
            if child.nodeType == child.ELEMENT_NODE:
                self.children.append(DomWrapper(path, node=child))
            elif child.nodeType == child.TEXT_NODE:
                text.append(child.data)
            elif child.nodeType != child.COMMENT_NODE:
                raise TypeError("Unsupported node type: %s" % child.nodeType)
        self.text = ''.join(text)

    def _get_dom(self, path, string):
        if path is not None:
            source = path
        else:
            source = StringIO(string)
        return minidom.parse(source)

 文件路径：C:\Python26\lib\site-packages\robot\minidomwrapper.py
功能：定义了DomWrapper的基类，XML DOM 定义了访问和处理 XML 文档的标准方法。这里仅仅是mini的读，暂不深入 。暂不深入