[XML-SIG] example code?

[Thomas B. Passin]

Tom Passin posted this code sample:

If you know all the element names you will use, do something easy like this,
which handles an element named "specialTag":

import xmllib

"""A simple class to demonstate how to handle your own elements"""
class bareBones(xmllib.XMLParser):
    def __init__(self):
        xmllib.XMLParser.__init__(self)

    # Your element is called "specialTag"
    def start_specialTag(self, attrs):
        print "Start specialTag"
        print "element name:", attrs
        self.handle_data=self.do_data  #invoke your content handler
    def end_specialTag(self):
        print "End specialTag"
        self.handle_data=self.null_data #reset content handler

    # A minimal data handler
    def do_data(self,data):
        print "===============\n",data,"\n==============="

    def null_data(self,data):pass

doc="""<?xml version="1.0"?>
<doc>
<e1>This element won't be reported</e1>
<specialTag a="attribute 1">This one will</specialTag>
</doc>
"""

if __name__=="__main__":
    parser=bareBones()
    parser.feed(doc)
    parser.close()

------------------------------------------------------
A minor error - I forgot to change the string printed in start_specialTag()

was:
    print "element name:", attrs
should be:
    print "attributes", attrs

Tom Passin