If it won't be simple, it simply won't be. [Hire me, source code] by Miki Tebeka, CEO, 353Solutions

Friday, November 30, 2007

Going Scheme Style

Lets count the words our code, omitting comments:
#!/usr/bin/env python

from functools import partial
import re

filter_comment = partial(re.compile("#.*$").sub, "")
words = re.compile("[^ \t\n\r]+").findall

def num_words(text):
'''Return the number of words in a code segment, ignoring comments

>>> num_words("")
0
>>> num_words("1 + 1")
3
>>> num_words("1 + 1 # add 1 to 1")
3
'''
return sum(map(len,
map(words,
map(filter_comment,
text.splitlines()))))


if __name__ == "__main__":
import doctest
doctest.testmod()
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