163 lines
6.3 KiB
Python
163 lines
6.3 KiB
Python
# -*- coding: iso-8859-15 -*-
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# Copyright (c) 2000 LOGILAB S.A. (Paris, FRANCE).
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# http://www.logilab.fr/ -- mailto:contact@logilab.fr
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program; if not, write to the Free Software Foundation, Inc.,
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# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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"""The VCalSax module defines a Sax parser for VCalendar files.
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It offers conversions between VCalendar data and a VCalXml DOM
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implementation.
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"""
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__revision__ = "$Id$"
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from xml.sax.saxutils import prepare_input_source
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from xml.sax import saxlib
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from xml.sax.xmlreader import AttributesImpl, AttributesNSImpl
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from xml.dom import EMPTY_NAMESPACE
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from xml.dom.ext.reader import Sax2
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import re
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try:
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import codecs
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def to_xml_string(str,encoding):
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try:
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decoder = codecs.lookup(encoding)[1]
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encoder = codecs.lookup('utf-8')[0]
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return encoder(decoder(str)[0])[0]
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except LookupError:
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return str
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except ImportError:
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from xml.unicode.iso8859 import wstring
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def to_xml_string(str,encoding):
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if upper(self._encoding) == 'UTF-8':
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return str
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else:
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return wstring.decode(encoding,str).utf8()
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# Parser for VCalendar data
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class VcfParser(saxlib.XMLReader) :
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def __init__(self):
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saxlib.XMLReader.__init__(self)
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self._handle_namespaces = 0
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def parse(self, source):
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try:
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file=source.getByteStream()
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except AttributeError:
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file = source
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data = file.readline()
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while data != '' :
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while 1:
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nextLine = file.readline()
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if not nextLine:
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break
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if nextLine[0] == ' ':
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data = data.strip() + nextLine[1:]
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continue
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break
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# VCALENDAR, VEVENT or VTODO
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m = re.search('^[ \t]*BEGIN:[ \t]*(\S*)',data)
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if m :
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vobjname = m.group(1)
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if self._handle_namespaces:
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self._cont_handler.startElementNS(
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(EMPTY_NAMESPACE, vobjname),
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vobjname, AttributesNSImpl({}, {}))
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else:
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self._cont_handler.startElement(vobjname,AttributesImpl({}))
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else :
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m = re.search('^[ \t]*END:[ \t]*(\S*)',data)
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if m :
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vobjname = m.group(1)
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if self._handle_namespaces:
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self._cont_handler.endElementNS(
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(EMPTY_NAMESPACE, vobjname), vobjname)
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else:
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self._cont_handler.endElement(vobjname)
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else :
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# VCF property 'propname;paramname=paramvalue:propvalue'
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m = re.search('^[ \t]*([^\s;:]*);?([^:]*):(.*)',data)
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if m :
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propname = m.group(1)
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propvalue = m.group(3)
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attrs = {}
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qnames = {}
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if m.group(2) != '' :
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propparams = re.split(';',m.group(2))
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for i in propparams :
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try:
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(paramname,paramvalue) = re.split('=',i)
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except:
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print "Warning : bad format"
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paraname = "Unknown"
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paramvalue = "Unkown"
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qnames[(EMPTY_NAMESPACE,paramname)] = paramname
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attrs[(EMPTY_NAMESPACE,paramname)] = paramvalue
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# 'X-' prefixed properties
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if re.match('X-',propname) :
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qnames[(EMPTY_NAMESPACE,'x-name')] = 'x-name'
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attrs[(EMPTY_NAMESPACE,'x-name')] = propname
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propname = 'extension'
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propvalue = unicode(propvalue, 'iso-8859-1')
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self._cont_handler.startElementNS(
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(EMPTY_NAMESPACE, propname),
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propname, AttributesNSImpl(attrs, qnames))
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self._cont_handler.characters(propvalue)
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self._cont_handler.endElementNS(
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(EMPTY_NAMESPACE, propname),
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propname)
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data = nextLine
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file.close()
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def getFeature(self, name):
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if name == saxlib.feature_namespaces:
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return self._handle_namespaces
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elif name == saxlib.feature_namespace_prefixes:
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return 0
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raise saxlib.SAXNotRecognizedException(
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"Feature '%s' not recognized" % name)
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def setFeature(self, name, value):
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if name == saxlib.feature_namespaces:
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self._handle_namespaces = value
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else:
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raise saxlib.SAXNotRecognizedException(
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"Feature '%s' not recognized" % name)
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def getProperty(self, name):
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if name == saxlib.property_lexical_handler:
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return self._lex_handler
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elif name == saxlib.property_declaration_handler:
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return self._decl_handler
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raise saxlib.SAXNotRecognizedException(
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"Property '%s' not recognized" % name)
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def setProperty(self, name, value):
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if name == saxlib.property_lexical_handler:
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self._lex_handler = value
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elif name == saxlib.property_declaration_handler:
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self._decl_handler = value
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else:
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raise saxlib.SAXNotRecognizedException(
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"Property '%s' not recognized" % name)
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