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"""String Pattern Matching.

@see: https://docs.python.org/3/tutorial/stdlib.html#string-pattern-matching

The re module provides regular expression tools for advanced string processing.

For complex matching and manipulation, regular expressions offer succinct, optimized solutions:

"""

import re

def test_re():

"""String Pattern Matching"""

assert re.findall(r'\bf[a-z]*', 'which foot or hand fell fastest') == [

'foot',

'fell',

'fastest'

]

assert re.sub(r'(\b[a-z]+) \1', r'\1', 'cat in the the hat') == 'cat in the hat'

# When only simple capabilities are needed, string methods are preferred because they are

# easier to read and debug:

assert 'tea for too'.replace('too', 'two') == 'tea for two'