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Diffstat (limited to 'challenge-035/paulo-custodio/python/ch-1.py')
| -rw-r--r-- | challenge-035/paulo-custodio/python/ch-1.py | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/challenge-035/paulo-custodio/python/ch-1.py b/challenge-035/paulo-custodio/python/ch-1.py new file mode 100644 index 0000000000..f0ce1e091d --- /dev/null +++ b/challenge-035/paulo-custodio/python/ch-1.py @@ -0,0 +1,47 @@ +#!/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:]))) |