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#!/usr/bin/python3
# Challenge 035
#
# TASK #1
# Contributed by Paul Johnson
# Write a program to encode text into binary encoded morse code.
# Pay attention to any changes which might need to be made to the text to
# make it valid morse code.
#
# Morse code consists of dots, dashes and gaps. It can be encoded in binary
# in the following fashion:
#
# dot: 1
# dash: 111
# intra-character gap: 0
# character gap: 000
# word gap: 0000000
# An intra-character gap is inserted between the dots and dashes in a character.
import sys
import re
# morse code chart
MORSE = { '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':'-----'}
def encode_bin_morse(text):
encoded = ""
for c in text.upper():
if c.isalnum():
morse = MORSE[c]
morse = re.sub(r"\.", "10", morse)
morse = re.sub(r"\-", "1110", morse)
encoded += morse+"00"
else:
encoded += "0000"
encoded = re.sub(r"0+$", "", encoded)
return encoded
print(encode_bin_morse(" ".join(sys.argv[1:])))
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