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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
<head>
<title>Sample SAX Program</title>
</head>
<body>
<h1>
2.2a Sample SAX Program</h1>
import sys
<br>from xml.sax import saxlib, saxexts, drivers
<p>class PrintWorkNumbers(saxlib.HandlerBase):
<br> """This is our specialized document handler class"""
<br> def __init__(self):
<br> self.curr_name = ''
<br> self.print_flag = 0
<p> def startElement(self, name, attribs):
<br> if name == 'NAME':
<br>
sys.stdout.write('Name: ')
<br>
self.print_flag = 1
<br> elif name == 'PHONENUM':
<br>
if attribs['DESC'] == 'Work':
<br> &nb
sp;
sys.stdout.write('Work phone number: ')
<br> &nb
sp;
self.print_flag = 1
<p> def endElement(self, name):
<br> if self.print_flag:
<br>
self.print_flag = 0
<br>
print #write new line
<br> if name == 'NAME':
<br>
self.curr_name = name
<p> def characters(self, ch, start, length):
<br> if self.print_flag:
<br>
sys.stdout.write(ch[start:start+length])
<br>
<p>p = saxexts.XMLValParserFactory.make_parser()
<br>p.setDocumentHandler(PrintWorkNumbers())
<br>xml_file = open(sys.argv[1], 'r')
<br>p.parseFile(xml_file)
<br>xml_file.close()
<br>
<br>
</body>
</html>
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