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@dvoiss
Created Aug 11, 2012
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Programming Praxis: Convert English text to Pig Latin and back again (with tests)
#!/usr/bin/env python
# convert english to pig-latin and pig-latin to english
# solution for: http://programmingpraxis.com/2009/06/02/pig-latin/2/
# rules:
# words that start with a consonant and followed immediately by a vowel,
# such as 'sorry' become 'orry-say', (first letter plus 'ay')
# words that start with vowels: 'amazing' => 'amazing-way' ('way' is appended)
# special case:
# in a word such as 'wonderful', it becomes 'onderful-way',
# son conversion back into english, 'onderful-way' would get recognized
# as a word that starts with a vowel because it has the 'way' at the end:
# 'onderful-way' => 'onderful'
def pigify(text):
'''Convert English to Pig Latin
>>> text = "Hello there good sir! What a great day!"
>>> pigify( text )
'ello-Hay ere-thay ood-gay ir!-say at-Whay a-way eat-gray ay!-day'
'''
vowels = list("aeiouAEIOU")
def pigify_word(word):
if word[0] in vowels:
return word + "-way"
else:
collection = [word.find(item) for item in vowels if word.find(item) != -1]
idx = 1 if len(collection) == 0 else min(collection)
return word[idx:] + "-" + word[:idx] + "ay"
return " ".join([pigify_word(word) for word in text.split(" ")])
def englify(text):
'''Convert Pig Latin to English
>>> text = "ello-Hay ere-thay ood-gay ir!-say at-Whay a-way eat-gray ay!-day"
>>> englify( text )
'Hello there good sir! What a great day!'
'''
def englify_word(word):
if word[-4:] == "-way":
return word[:-4]
else:
return word.split("-")[1][:-2] + word.split("-")[0]
return " ".join([englify_word(word) for word in text.split(" ")])
if __name__ == '__main__':
import doctest
print doctest.testmod()
print ''
test = "Hello there good sir! What a great day!"
pigified = pigify(test)
print "ORIGINAL: " + test
print "TO PIG LATIN: " + pigified
print "TO ENGLISH: " + englify(pigified)
@QuantumCD

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@QuantumCD QuantumCD commented Aug 9, 2013

Interesting method for translation back to English. Thanks for sharing.

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