# codec.py -- UrlCodec class, url_codec global
#
# Copyright (C) 2003 Manish Jethani (manish_jethani AT yahoo.com)
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from string import split,join
from binascii import hexlify,unhexlify
class UrlCodec: # url-encoding (rfc 1738)
def encode(self, str):
if str == None:
return None
buf = []
for c in str:
h = hexlify(c)
i = ord(c)
if 0x00 <= i <= 0x20 or i == 0x7f or 0x80 <= i <= 0xff:
buf.append('%')
buf.append(h)
else:
buf.append(c)
return join(buf, '')
def decode(self, str):
if str == None:
return None
buf = []
p = hex = None
for c in str:
if c == '%':
p = '%'
elif p != None:
(hex, p) = (c, None)
elif hex != None:
hex = hex + c
buf.append(unhexlify(hex))
hex = None
else:
buf.append(c)
return join(buf, '')
url_codec = UrlCodec()
# vim: set ts=4 sw=4 et tw=79 :
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