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###############################################################################
# Copyright (c) 2017 Koren Lev (Cisco Systems), Yaron Yogev (Cisco Systems) #
# and others #
# #
# All rights reserved. This program and the accompanying materials #
# are made available under the terms of the Apache License, Version 2.0 #
# which accompanies this distribution, and is available at #
# http://www.apache.org/licenses/LICENSE-2.0 #
###############################################################################
import re
class SpecialCharConverter:
translated_re = re.compile(r'---[.][.][0-9]+[.][.]---')
def encode_special_characters(self, s):
SPECIAL_CHARS = [':', '/']
for c in SPECIAL_CHARS:
if c in s:
s = s.replace(c, '---..' + str(ord(c)) + '..---')
return s
def decode_special_characters(self, s):
replaced = []
for m in re.finditer(self.translated_re, s):
match = m.group(0)
char_code = match[5:len(match)-5]
if char_code not in replaced:
replaced.append(char_code)
s = s.replace(match, chr(int(char_code)))
return s
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