forked from tdwojak/Python2017
55 lines
1.4 KiB
Python
55 lines
1.4 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Implementacja narzedzia ``wc`` z linuksa (word counter).
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Zwraca liczbę słów, znaków i linii.
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"""
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import sys, argparse
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def count_lines(text):
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""" return number of lines. """
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return len(text.strip().split('\n'))
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def count_words(text):
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""" return number of words. """
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return sum([len([1 for word in line.split(' ') if len(word)])
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for line in text.split('\n')])
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def count_chars(text):
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""" return number of characters. """
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return len(text)
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def wc(text):
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""" proper wc """
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lines = count_lines(text)
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words = count_words(text)
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chars = count_chars(text)
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return lines, words, chars
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def main():
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""" main """
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parser = argparse.ArgumentParser()
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parser.add_argument('-l', help="number of lines", action="store_true")
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parser.add_argument('-w', help="number of words", action="store_true")
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parser.add_argument('-c', help="number of characters", action="store_true")
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parser.add_argument('fn', nargs='?', type=file, default=sys.stdin, help='optional filename to read from')
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args = parser.parse_args()
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lines, words, chars = wc(args.fn.read())
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if( args.l or args.w or args.c ):
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if(args.l):
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print(lines)
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if(args.w):
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print(words)
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if(args.c):
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print(chars)
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else:
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print(lines, words, chars)
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if __name__ == "__main__":
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main()
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