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#!/usr/bin/env python
# This is an XML API that uses a syntax similar to XPath, but it is written in
# standard python so that no extra python packages are required to use it.
import xml.dom.minidom
def XmlList(Dom, String):
"""Get a list of XML Elements using XPath style syntax."""
if Dom.nodeType==Dom.DOCUMENT_NODE:
return XmlList(Dom.documentElement, String)
if String[0] == "/":
return XmlList(Dom, String[1:])
if String == "" :
return []
TagList = String.split('/')
nodes = []
if Dom.nodeType == Dom.ELEMENT_NODE and Dom.tagName.strip() == TagList[0]:
if len(TagList) == 1:
nodes = [Dom]
else:
restOfPath = "/".join(TagList[1:])
for child in Dom.childNodes:
nodes = nodes + XmlList(child, restOfPath)
return nodes
def XmlElement (Dom, String):
"""Return a single element that matches the String which is XPath style syntax."""
try:
return XmlList (Dom, String)[0].firstChild.data.strip(' ')
except:
return ''
def XmlElementData (Dom):
"""Get the text for this element."""
return Dom.firstChild.data.strip(' ')
def XmlAttribute (Dom, String):
"""Return a single attribute that named by String."""
try:
return Dom.getAttribute(String)
except:
return ''
def XmlTopTag(Dom):
"""Return the name of the Root or top tag in the XML tree."""
return Dom.firstChild.nodeName
# This acts like the main() function for the script, unless it is 'import'ed into another
# script.
if __name__ == '__main__':
# Nothing to do here. Could do some unit tests.
pass
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