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opml.py
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opml.py
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#!/usr/bin/env python
# -*- coding: UTF-8 -*-
# $NoKeywords: $ for Visual Sourcesafe, stop replacing tags
__revision__ = "$Revision: 1.5 $"
__revision_number__ = __revision__.split()[1]
__url__ = "https://newspipe.sourceforge.net"
__author__ = "Ricardo M. Reyes <reyesric@ufasta.edu.ar>"
__id__ = "$Id: opml.py,v 1.5 2004/12/14 02:22:07 reyesric Exp $"
from pprint import pprint
import xml.dom.minidom
from htmlentitydefs import *
from datetime import datetime
def getText(nodelist):
rc = ""
for node in nodelist:
if node.nodeType == node.TEXT_NODE:
rc = rc + node.data
return rc
def CrearDiccionario(raiz):
result = {}
if raiz.getElementsByTagName ('outline'):
outline = True
else:
outline = False
# end if
for attr, value in raiz.attributes.items():
result[attr] = value
# end for
if outline:
result[u'childs'] = {}
for hijo in [x for x in raiz.childNodes if x.nodeName == 'outline']:
attribute = hijo.attributes.get('title', hijo.attributes.get('text', None))
if attribute:
nombre = attribute.value
else:
nombre = ''
if nombre in result[u'childs'].keys():
i = 1
original = nombre
nombre = original + str(i)
while nombre in result[u'childs'].keys():
i += 1
nombre = original + str(i)
# end while
# end if
result[u'childs'][nombre] = CrearDiccionario(hijo)
# end for
else:
for node in raiz.childNodes:
result[node.nodeName] = getText(node.childNodes)
# end for
# end if
return result
# end def
def ParseOPML(archivo):
result = {}
dom = xml.dom.minidom.parse(archivo)
node = dom.getElementsByTagName('opml')[0]
result[u'opml'] = {u'head':CrearDiccionario(node.getElementsByTagName('head')[0]),
u'body':CrearDiccionario(node.getElementsByTagName('body')[0])}
#result = CrearDiccionario(dom)
dom.unlink()
return result
# end def
def ProcesarRama(rama, resultados, antecesores, valores_heredados):
valores = {}
for key in rama.keys():
if key != 'childs':
valores[key] = rama[key]
# end if
# end for
for attr, value in valores_heredados.items():
if not attr in valores.keys():
valores[attr] = value
# end if
# end for
if 'childs' in rama.keys():
hijos = rama['childs']
for hijo in hijos.keys():
ProcesarRama (hijos[hijo], resultados, antecesores + [hijo,], valores)
# end for
else:
if antecesores.__len__() > 1:
valores[u'path'] = '/' + u'/'.join(antecesores[:-1])
else:
valores[u'path'] = '/'
# end if
resultados += [valores,]
# end if
# end def
def ListToDict(lista):
result = {}
for attr, value in lista:
result[attr] = value.strip()
# end for
return result
# end def
def AplanarArbol(arbol, defaults=None):
lista = []
ProcesarRama(arbol['opml']['body'], lista, [], {})
result = {'head':ListToDict(arbol['opml']['head'].items()),
'body':lista}
# add an index value to each item
for i, each in enumerate(lista):
each[u'index'] = unicode(str(i))
# add the default values to those item that are not complete
if defaults:
for each in lista:
for key,value in defaults.items():
if not isinstance(key, unicode):
key = unicode(key)
if not isinstance(value, unicode):
value = unicode(value)
if not key in each.keys():
each[key] = value
return result
# end def
entidades = {}
for key,value in entitydefs.items():
entidades[unicode(value, 'latin1')] = unicode(key)
# end for
def escape (text):
aux = []
for each in text:
if each in entidades.keys():
aux.append ('&'+entidades[each]+';')
else:
aux.append (each)
return ''.join(aux)
def generarOPML (feedList):
doc = xml.dom.minidom.Document()
opml = doc.createElement ('opml')
opml.setAttribute ('version', '1.1')
doc.appendChild(opml)
head = doc.createElement ('head')
opml.appendChild(head)
for each, value in feedList['head'].items():
if value.strip():
if each != 'dateModified':
attr = doc.createElement (each)
ptext = doc.createTextNode (value)
attr.appendChild (ptext)
head.appendChild (attr)
attr = doc.createElement ('dateModified')
ptext = doc.createTextNode (str(datetime.now()))
attr.appendChild (ptext)
head.appendChild (attr)
body = doc.createElement('body')
opml.appendChild(body)
for each in feedList['body']:
outline = doc.createElement ('outline')
for key, value in each.items():
outline.setAttribute (key, value)
body.appendChild (outline)
return doc.toprettyxml(encoding='utf-8')
if __name__ == '__main__':
pprint (AplanarArbol(ParseOPML('test.opml')))