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lambda solution in Clear category for Between Markers by Max0526
between_markers = lambda text, begin, end: text[(text.find(begin) + len(begin)) if begin in text else 0 : \
(text.find(end)) if end in text else len(text)]
'''
A rewrite of
def between_markers(text: str, begin: str, end: str) -> str:
if begin == '' and end == '': return ''
b = 0 if text.find(begin) == -1 else text.find(begin) + len(begin)
e = len(text) if text.find(end) == -1 else text.find(end)
return text[b:e]
'''
if __name__ == '__main__':
print('Example:')
print(between_markers('What is >apple<', '>', '<'))
print(between_markers("My new site",
"", ""))
# These "asserts" are used for self-checking and not for testing
assert between_markers('What is >apple<', '>', '<') == "apple", "One sym"
assert between_markers("My new site",
"", "") == "My new site", "HTML"
assert between_markers('No[/b] hi', '[b]', '[/b]') == 'No', 'No opened'
assert between_markers('No [b]hi', '[b]', '[/b]') == 'hi', 'No close'
assert between_markers('No hi', '[b]', '[/b]') == 'No hi', 'No markers at all'
assert between_markers('No ', '>', '<') == '', 'Wrong direction'
print('Wow, you are doing pretty good. Time to check it!')
May 1, 2023
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