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-rw-r--r--app/utils/special_char_converter.py32
1 files changed, 32 insertions, 0 deletions
diff --git a/app/utils/special_char_converter.py b/app/utils/special_char_converter.py
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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