source code of /small-scripts/ppt.py

Last modified	2016-01-08
Lines	52

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Quick links: count_holes main print_byte

```
#!/usr/bin/python
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```
'''
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```
Reads from stdin, writes to stdout.
```
```
- BEGIN
```
```
- | 7 6 5 4 | 3 2 1 0 |
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```
 7|   -   - |   -     |0
```
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- END
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```
'''
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import sys
```
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def count_holes(s):
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    holes = 0
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    for c in s:
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        x = ord(c)
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        for i in range(8):
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            if x & (1<<i):
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                holes += 1
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    return holes
```
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def print_byte(c):
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    x = ord(c)
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    sys.stdout.write(' 7|')
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    for i in range(7, -1, -1):
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        if i == 3:
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            sys.stdout.write(' | ')
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        else:
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            sys.stdout.write(' ')
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        if x & (1<<i):
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            sys.stdout.write('-')
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        else:
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            sys.stdout.write(' ')
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    sys.stdout.write(' |0\n')
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def main():
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    content = sys.stdin.read()
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```
    
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    sys.stdout.write('- BEGIN            BEGIN\n')

    sys.stdout.write('- | 7 6 5 4 | 3 2 1 0 | \n')

```
    
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    for c in content:
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        print_byte(c)
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    sys.stdout.write('- END                END\n')

```
    
```

    sys.stderr.write('{} Holes\n'.format(count_holes(content)))

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if __name__ == '__main__':
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    main()
```