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Viewing changes to canto/handlers.py

  • Committer: Bazaar Package Importer
  • Author(s): Daniel Baumann
  • Date: 2009-04-17 21:11:00 UTC
  • mfrom: (2.1.5 squeeze)
  • Revision ID: james.westby@ubuntu.com-20090417211100-011toye0gt8dk3pz
Tags: 0.6.10-1
Merging upstream version 0.6.10.

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canto/handlers.py
 
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#Canto - ncurses RSS reader
 
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#   Copyright (C) 2008 Jack Miller <jack@codezen.org>
 
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#
 
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#   This program is free software; you can redistribute it and/or modify
 
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#   it under the terms of the GNU General Public License version 2 as 
 
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#   published by the Free Software Foundation.
 
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class Handler():
 
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    def __init__(self):
 
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        self.reset()
 
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    def get_attr(self, attrs, attr):
 
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        l = [v for k,v in attrs if k == attr]
 
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        if l :
 
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            return l[0]
 
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class LinkHandler(Handler):
 
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    def reset(self):
 
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        self.active = 0
 
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        self.link = ""
 
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        self.content = ""
 
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        self.handler = "link"
 
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    def match(self, tag, attrs, open, ll):
 
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        if tag == "a":
 
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            if open:
 
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                href = self.get_attr(attrs, "href")
 
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                if href:
 
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                    self.link = href
 
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                    self.active = 1
 
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                    return "%4"
 
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                else:
 
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                    self.reset()
 
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            else:
 
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                ll.append((self.content, self.link, self.handler))
 
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                self.reset()
 
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                return u"[" + unicode(len(ll)) + u"]%0"
 
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class ImageHandler(Handler):
 
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    def reset(self):
 
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        self.active = 0
 
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        self.handler = "image"
 
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    def match(self, tag, attrs, open, ll):
 
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        if tag == "img":
 
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            if open:
 
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                src = self.get_attr(attrs, "src")
 
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                alt = self.get_attr(attrs, "alt")
 
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                if not alt:
 
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                    alt = "image"
 
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                if src:
 
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                    extension = src.rsplit('.',1)[-1]
 
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                    ll.append((alt, src, self.handler))
 
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                self.reset()
 
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                return u"%7["+ alt + u"][" + unicode(len(ll)) + u"]%0"