64 lines
1.8 KiB
Python
64 lines
1.8 KiB
Python
|
#!/usr/bin/env python3
|
||
|
|
|
||
|
|
''' wc.py - print newline, word, and byte counts for stream '''
|
||
|
|
|
||
|
|
import io
|
||
|
|
import sys
|
||
|
|
|
||
|
|
# Functions
|
||
|
|
|
||
|
|
def usage(exit_status: int=0) -> None:
|
||
|
|
''' Print usage message and exit. '''
|
||
|
|
print('''Usage: wc.py [-l | -w | -c]
|
||
|
|
|
||
|
|
Print newline, word, and byte counts from standard input.
|
||
|
|
|
||
|
|
The options below may be used to select which counts are printed, always in
|
||
|
|
the following order: newline, word, byte.
|
||
|
|
|
||
|
|
-c Print byte counts
|
||
|
|
-l Print newline counts
|
||
|
|
-w Print word counts''', file=sys.stderr)
|
||
|
|
sys.exit(exit_status)
|
||
|
|
|
||
|
|
def count_stream(stream=sys.stdin) -> dict[str, int]:
|
||
|
|
''' Count the newlines, words, and bytes in specified stream.
|
||
|
|
|
||
|
|
>>> count_stream(io.StringIO('Despite all my rage, I am still just a rat in a cage'))
|
||
|
|
{'newlines': 1, 'words': 13, 'bytes': 52}
|
||
|
|
'''
|
||
|
|
pass
|
||
|
|
|
||
|
|
def print_counts(counts: dict[str, int], options: list[str]) -> None:
|
||
|
|
''' Print the newline, word, and byte counts. If none of the options are
|
||
|
|
specified, then include all options in output. Othewrise, only include the
|
||
|
|
specified options.
|
||
|
|
|
||
|
|
Note: always output the counts the following order: newlines, words, bytes.
|
||
|
|
|
||
|
|
>>> print_counts({'newlines': 1, 'words': 13, 'bytes': 52}, ['newlines', 'words', 'bytes'])
|
||
|
|
1 13 52
|
||
|
|
'''
|
||
|
|
pass
|
||
|
|
|
||
|
|
# Main Execution
|
||
|
|
|
||
|
|
def main(arguments=sys.argv[1:], stream=sys.stdin) -> None:
|
||
|
|
''' Print the newline, word, and byte counts from stream.
|
||
|
|
|
||
|
|
This function will parse the command line arguments to select which counts
|
||
|
|
to include in the final report.
|
||
|
|
|
||
|
|
>>> main([], io.StringIO('Despite all my rage, I am still just a rat in a cage'))
|
||
|
|
1 13 52
|
||
|
|
'''
|
||
|
|
# Parse command line arguments
|
||
|
|
pass
|
||
|
|
|
||
|
|
# Count stream and print counts
|
||
|
|
pass
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
main()
|
||
|
|
|
||
|
|
# vim: set sts=4 sw=4 ts=8 expandtab ft=python:
|