Python SGML Script - Revision history

PeterHarding at 04:22, 10 April 2017

2017-04-10T04:22:15Z

@@ Line 159: / Line 159: @@
 print myparser.get_descriptions()
 </pre>
 [[Category:Python]]
 [[Category:Examples]]

PeterHarding at 04:21, 10 April 2017

2017-04-10T04:21:24Z

← Older revision		Revision as of 14:21, 10 April 2017
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			The example scripts...

	=HTML_01.py=		=HTML_01.py=

PeterHarding at 04:21, 10 April 2017

2017-04-10T04:21:00Z

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 <pre>
 #!/usr/bin/env python
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              else:
                  self.descriptions[-1] += data
      def get_hyperlinks(self):

PeterHarding: Created page with "

 #!/usr/bin/env python  """ Original author: Paul Boddie   To the extent possible under law, the person who associated CC0 with this work has waived a..."

2017-04-10T04:16:39Z

Created page with "<pre> #!/usr/bin/env python """ Original author: Paul Boddie <paul@boddie.org.uk> To the extent possible under law, the person who associated CC0 with this work has waived a..."

New page

<pre>
#!/usr/bin/env python

"""
Original author: Paul Boddie <paul@boddie.org.uk>

To the extent possible under law, the person who associated CC0 with this work
has waived all copyright and related or neighboring rights to this work.

See: http://creativecommons.org/publicdomain/zero/1.0/
"""

import sgmllib

class MyParser(sgmllib.SGMLParser):
"A simple parser class."

def parse(self, s):
"Parse the given string 's'."
self.feed(s)
self.close()

def __init__(self, verbose=0):
"Initialise an object, passing 'verbose' to the superclass."

sgmllib.SGMLParser.__init__(self, verbose)
self.hyperlinks = []
self.descriptions = []
self.inside_a_element = 0
self.starting_description = 0

def start_a(self, attributes):
"Process a hyperlink and its 'attributes'."

for name, value in attributes:
if name == "href":
self.hyperlinks.append(value)
self.inside_a_element = 1
self.starting_description = 1

def end_a(self):
"Record the end of a hyperlink."

self.inside_a_element = 0

def handle_data(self, data):
"Handle the textual 'data'."

if self.inside_a_element:
if self.starting_description:
self.descriptions.append(data)
self.starting_description = 0
else:
self.descriptions[-1] += data

def get_hyperlinks(self):
"Return the list of hyperlinks."

return self.hyperlinks

def get_descriptions(self):
"Return a list of descriptions."

return self.descriptions

import urllib, sgmllib

# Get something to work with.
f = urllib.urlopen("http://www.python.org")
s = f.read()

# Try and process the page.
# The class should have been defined first, remember.
myparser = MyParser()
myparser.parse(s)

# Get the hyperlinks.
print myparser.get_hyperlinks()
print myparser.get_descriptions()
</pre>

[[Category:Python]]
[[Category:Examples]]