def decode(self, text: str):
"""
Decipher an input ROT-13 ciphertext.
:param text: input ciphertext
"""
return shift_mono(parse_text(text), 13)
def encode(self, text: str):
"""
Encipher an input plaintext using ROT-13.
:param text: input plaintext
"""
return shift_mono(parse_text(text), 13)
def get_ngrams(text: str, n: int):
"""
Returns a list of n-grams from an input text
text (str): input text
n (int): number of characters for each item
"""
return [text[i:i + n] for i in range(len(parse_text(text)) - n + 1)]
def decode(self, text: str):
"""
Decipher an input Atbash ciphertext.
:param text: input ciphertext
"""
text = parse_text(text)
out = [chr(122 - ord(text[i]) + 97) for i in range(len(text))]
return ''.join(str(x) for x in out)
def encode(self, text: str):
"""
Encipher an input plaintext using Atbash.
:param text: input plaintext
"""
text = parse_text(text)
out = [chr(122 - ord(text[i]) + 97) for i in range(len(text))]
return ''.join(str(x) for x in out)
def find_ngram_equivalents(text: str, ngrams: list, n: int):
"""
Converts a text into a set of n-grams, and returns the common
n-grams between the n-grams of the text and an input n-gram list.
"""
return list(set(get_ngrams(parse_text(text), n)).intersection(ngrams))