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Copy pathsolution3_dict_words.py
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executable file
·99 lines (72 loc) · 2.7 KB
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#!/usr/bin/env python3
"""Make rhyming words"""
import argparse
import io
from pydash import flatten
# --------------------------------------------------
def get_args():
"""get command-line arguments"""
parser = argparse.ArgumentParser(
description='Make rhyming "words"',
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('word', metavar='str', help='A word to rhyme')
parser.add_argument('-w',
'--wordlist',
metavar='FILE',
type=argparse.FileType('r'),
default='/usr/share/dict/words',
help='Wordlist to verify authenticity')
return parser.parse_args()
# --------------------------------------------------
def main():
"""Make a jazz noise here"""
args = get_args()
prefixes = list('bcdfghjklmnpqrstvwxyz') + (
'bl br ch cl cr dr fl fr gl gr pl pr sc '
'sh sk sl sm sn sp st sw th tr tw thw wh wr '
'sch scr shr sph spl spr squ str thr').split()
dict_words = read_wordlist(args.wordlist)
def is_dict_word(word):
return word.lower() in dict_words if dict_words else True
start, rest = stemmer(args.word)
if rest:
print('\n'.join(
sorted(
filter(is_dict_word,
[p + rest for p in prefixes if p != start]))))
else:
print(f'Cannot rhyme "{args.word}"')
# --------------------------------------------------
def stemmer(word):
"""Return leading consonants (if any), and 'stem' of word"""
word = word.lower()
pos = list(
filter(lambda v: v >= 0,
map(lambda c: word.index(c) if c in word else -1, 'aeiou')))
if pos:
first = min(pos)
return (word[:first], word[first:])
else:
return (word, '')
# --------------------------------------------------
def test_stemmer():
"""test the stemmer"""
assert stemmer('') == ('', '')
assert stemmer('cake') == ('c', 'ake')
assert stemmer('chair') == ('ch', 'air')
assert stemmer('APPLE') == ('', 'apple')
assert stemmer('RDNZL') == ('rdnzl', '')
# --------------------------------------------------
def read_wordlist(fh):
"""Read the wordlist file"""
return set(
flatten([line.lower().strip().split() for line in fh] if fh else []))
# --------------------------------------------------
def test_read_wordlist():
"""test"""
assert read_wordlist(io.StringIO('foo\nbar\nfoo')) == set(['foo', 'bar'])
assert read_wordlist(io.StringIO('foo bar\nbar foo\nfoo')) == set(
['foo', 'bar'])
# --------------------------------------------------
if __name__ == '__main__':
main()