# Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.

# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

#

# The Universal Permissive License (UPL), Version 1.0

#

# Subject to the condition set forth below, permission is hereby granted to any

# person obtaining a copy of this software, associated documentation and/or

# data (collectively the "Software"), free of charge and under any and all

# copyright rights in the Software, and any and all patent rights owned or

# freely licensable by each licensor hereunder covering either (i) the

# unmodified Software as contributed to or provided by such licensor, or (ii)

# the Larger Works (as defined below), to deal in both

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# (a) the Software, and

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# (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if

# one is included with the Software each a "Larger Work" to which the Software

# is contributed by such licensors),

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# without restriction, including without limitation the rights to copy, create

# derivative works of, display, perform, and distribute the Software and make,

# use, sell, offer for sale, import, export, have made, and have sold the

# Software and the Larger Work(s), and to sublicense the foregoing rights on

# either these or other terms.

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# This license is subject to the following condition:

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import _codecs

def decode(self, encoding="utf-8", errors="strict"):

"""Decode the bytes using the codec registered for encoding.

encoding

The encoding with which to decode the bytes.

errors

The error handling scheme to use for the handling of decoding errors.

The default is 'strict' meaning that decoding errors raise a

UnicodeDecodeError. Other possible values are 'ignore' and 'replace'

as well as any other name registered with codecs.register_error that

can handle UnicodeDecodeErrors.

"""

return _codecs.decode(self, encoding=encoding, errors=errors)

bytes.decode = decode

def count(self, sub, start=None, end=None):

arr = self

if start and end:

arr = self[start:end]

elif start:

arr = self[start:]

elif end:

arr = self[:end]

matches = 0

# TODO implement Boyer-Moore algorithm

l_sub = len(sub)

for i in range(len(arr)):

matched = True

for j in range(l_sub):

if sub[j] != arr[i + j]:

matched = False

break

if matched:

matches += 1

return matches

bytes.count = count

def rfind(self, sub, start=None, end=None):

arr = self

if start and end:

arr = self[start:end]

elif start:

arr = self[start:]

elif end:

arr = self[:end]

# TODO implement properly using a fast algorithm

l_sub = len(sub)

if l_sub == 0:

return len(arr)

for i in range(len(arr), 0, -1):

matched = True

j = 0

while j < l_sub and sub[l_sub - j - 1] == arr[i - j - 1]:

j += 1

if j >= l_sub:

return i - j

return -1

bytes.rfind = rfind

def strip(self, what=None):

return self.lstrip(what).rstrip(what)

bytes.strip = strip