31 lines
780 B
Python
31 lines
780 B
Python
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from __future__ import unicode_literals
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import re
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import string
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import sys
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PY3 = sys.version_info[0] == 3
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if PY3:
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string = str
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class StringProcessor(object):
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"""
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This class defines method to process strings in the most
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efficient way. Ideally all the methods below use unicode strings
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for both input and output.
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"""
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regex = re.compile(r"(?ui)\W")
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@classmethod
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def replace_non_letters_non_numbers_with_whitespace(cls, a_string):
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"""
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This function replaces any sequence of non letters and non
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numbers with a single white space.
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"""
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return cls.regex.sub(" ", a_string)
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strip = staticmethod(string.strip)
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to_lower_case = staticmethod(string.lower)
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to_upper_case = staticmethod(string.upper)
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