python/algorithms/strings/morse_code.py at master · AllAlgorithms/python · GitHub

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#!/usr/bin/env python

"""

Pythonic Implementation of Morse Code encoding

"""

__author__ = "Aditya Krishnakumar"

# The alphabet dictionary for morse codes

morseAlphabet = {

"A": ".-",

"B": "-...",

"C": "-.-.",

"D": "-..",

"E": ".",

"F": "..-.",

"G": "--.",

"H": "....",

"I": "..",

"J": ".---",

"K": "-.-",

"L": ".-..",

"M": "--",

"N": "-.",

"O": "---",

"P": ".--.",

"Q": "--.-",

"R": ".-.",

"S": "...",

"T": "-",

"U": "..-",

"V": "...-",

"W": ".--",

"X": "-..-",

"Y": "-.--",

"Z": "--..",

"1": ".----",

"2": "..---",

"3": "...--",

"4": "....-",

"5": ".....",

"6": "-....",

"7": "--...",

"8": "---..",

"9": "----.",

"0": "-----"

}

# Lambda function for decoding the code to alphabet

inverseAlphabet = reduce(lambda a, b: dict(a.items() + b.items()),

[{

morseAlphabet[k]: k

} for k in morseAlphabet.keys()], {})

def encode(_text):

return ' '.join([morseAlphabet[_c.upper()] for _c in _text[:]])

def decode(_text):

return ''.join([inverseAlphabet[_c] for _c in _text.split(' ')])

# Dry runner

def test():

print decode(encode("TEST")) == "TEST"

if __name__ == "__main__":

test()

python/algorithms/strings/morse_code.py at master · AllAlgorithms/python · GitHub

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