*14. Python, CheckiO Elementary_Between Markers (simplified)

You are given a string and two markers (the initial one and final). You have to find a substring enclosed between these two markers. But there are a few important conditions.

This is a simplified version of the Between Markers mission.

• The initial and final markers are always different.
• The initial and final markers are always 1 char size.
• The initial and final markers always exist in a string and go one after another.

Input: Three arguments. All of them are strings. The second and third arguments are the initial and final markers.

Output: A string.

Example:

between_markers('What is >apple<', '>', '<') == 'apple'

1

How it is used: For text parsing.

Precondition: There can't be more than one final and one initial markers.

 

-> Solve it

 

def between_markers(text: str, begin: str, end: str) -> str:
    """
        #returns substring between two given markers
    """
    return text[text.index(begin)+1:text.index(end)]

def between_markers(text: str, begin: str, end: str) -> str: 
    """ 
        #returns substring between two given markers 
    """ 
    return text[text.index(begin)+1:text.index(end)]

if __name__ == '__main__':
    print('Example:')
    print(between_markers('What is >apple<', '>', '<'))

    # These "asserts" are used for self-checking and not for testing
    assert between_markers('What is >apple<', '>', '<') == "apple"
    assert between_markers('What is [apple]', '[', ']') == "apple"
    assert between_markers('What is ><', '>', '<') == ""
    assert between_markers('>apple<', '>', '<') == "apple"
    print('Wow, you are doing pretty good. Time to check it!')