"""
Example from lecture 13 oct. What if the builtin "str"-class
didn't exist? Then we could write our own, and here's a 
simple toy version which implements the useful
split-method. 
"""

class Tekst:
    def __init__(self, innhold):
        self.innhold = innhold

    def split(self, arg = ' '):
        res = []
        word = ''
        for e in self.innhold:
            if e != arg:
                word += e
            elif len(word) > 0:
                res.append(word)
                word = ''
        res.append(word)
        return res


line = Tekst("All work and no play makes Jack a dull boy.")

words = line.split()
print(words)