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27 lines
792 B
Python
27 lines
792 B
Python
3 years ago
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import textwrap
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from string import ascii_uppercase
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# Returns a function to generate node names with given prefix
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def make_name_generator (prefix = '', length = 1):
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wheels = [{ 'position': None, 'max': len(ascii_uppercase), 'values': list(ascii_uppercase)} for _ in range(length)]
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def name_generator ():
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for wheel in wheels:
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if wheel['position'] is None:
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wheel['position'] = 0
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else:
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wheel['position'] += 1
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if wheel['position'] < wheel['max']:
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break
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else:
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wheel['position'] = 0
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return prefix + ''.join(reversed([wheel['values'][wheel['position']] for wheel in wheels]))
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return name_generator
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# Wrap text on labels
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def wrapped (text, width=45, join='\n'):
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return join.join(textwrap.wrap(text, width=width))
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