from xml.dom import minidom
class XmlNode:
"""An XML node represents a single field in an XML document."""
def __init__(self, domElement):
"""Construct an XML node from a DOM element."""
self.elem = domElement
@classmethod
def makeRoot(cls, xmlFileName):
return cls(minidom.parse(xmlFileName))
def getData(self):
"""Extract data from a DOM node."""
for child in self.elem.childNodes:
if child.nodeType == child.TEXT_NODE:
return str(child.data)
return None
def getAttributeValue(self, name):
"""Returns the value of the attribute having the specified name."""
return str(self.elem.attributes[name].value)
def getChild(self, tag):
"""Returns the first child node having the specified tag."""
return XmlNode(self.elem.getElementsByTagName(tag)[0])
def getChildren(self, tag):
"""Returns a list of child nodes having the specified tag."""
return [XmlNode(x) for x in self.elem.getElementsByTagName(tag)]
Diff to Previous Revision
--- revision 1 2010-11-03 18:28:10
+++ revision 2 2011-05-03 23:06:30
@@ -7,6 +7,10 @@
"""Construct an XML node from a DOM element."""
self.elem = domElement
+ @classmethod
+ def makeRoot(cls, xmlFileName):
+ return cls(minidom.parse(xmlFileName))
+
def getData(self):
"""Extract data from a DOM node."""
for child in self.elem.childNodes:
@@ -25,8 +29,3 @@
def getChildren(self, tag):
"""Returns a list of child nodes having the specified tag."""
return [XmlNode(x) for x in self.elem.getElementsByTagName(tag)]
-
-
-def makeRootNode(xmlFileName):
- """Creates the root node from an XML file."""
- return XmlNode(minidom.parse(xmlFileName))
