1 """

     2 A simple demo that reads in an XML document and spits out an equivalent,

     3 but not necessarily identical, document.

     4 """

     5 

     6 import sys, string

     7 

     8 from xml.sax import saxutils, handler, make_parser

     9 

    10 # --- The ContentHandler

    11 

    12 class ContentGenerator(handler.ContentHandler):

    13 

    14     def __init__(self, out = sys.stdout):

    15         handler.ContentHandler.__init__(self)

    16         self._out = out

    17 

    18     # ContentHandler methods

    19 

    20     def startDocument(self):

    21         self._out.write('<?xml version="1.0" encoding="iso-8859-1"?>\n')

    22 

    23     def startElement(self, name, attrs):

    24         self._out.write('<' + name)

    25         for (name, value) in attrs.items():

    26             self._out.write(' %s="%s"' % (name, saxutils.escape(value)))

    27         self._out.write('>')

    28 

    29     def endElement(self, name):

    30         self._out.write('</%s>' % name)

    31 

    32     def characters(self, content):

    33         self._out.write(saxutils.escape(content))

    34 

    35     def ignorableWhitespace(self, content):

    36         self._out.write(content)

    37 

    38     def processingInstruction(self, target, data):

    39         self._out.write('<?%s %s?>' % (target, data))

    40 

    41 # --- The main program

    42 

    43 parser = make_parser()

    44 parser.setContentHandler(ContentGenerator())

    45 parser.parse(sys.argv[1])