Python2018/labs04/examples/wc.py

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2018-05-12 13:16:05 +02:00
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Implementacja narzedzia ``wc`` z linuksa (word counter).
Zwraca liczbę słów, znaków i linii.
"""
import sys
def count_lines(text):
""" return number of lines. """
return len(text.strip().split('\n'))
def count_words(text):
""" return number of words. """
return sum([len([1 for word in line.split(' ') if len(word)])
for line in text.split('\n')])
def count_chars(text):
""" return number of words. """
return len(text)
def wc(text):
""" proper wc """
lines = count_lines(text)
words = count_words(text)
chars = count_chars(text)
return lines, words, chars
def main():
""" main """
print(wc(sys.stdin.read()))
if __name__ == "__main__":
main()