eweindorfer A4

[eweindorfer]

Ready for review!

[kralina123]

The code seems to work well and supports the required options like -o, -w and -s, and even more. I really appreaciate the clear structure of your code. This makes the code easy to follow. The README file is very clear as well.

One small thing to reconsider is the removal of punctuation in character-based mode. The assignment explicitly mentions that punctuation may remain in word mode, but it does not require removing punctuation in character mode. So keeping the original characters might be closer to the specification.

One possible improvement could be memory efficiency. The current dictionary approach is simple and easy to understand, but it could become quite memory-heavy for larger texts.

One edge case that could be considered is what happens if the chosen order k is larger than the number of available tokens in the input text.

Overall, a very nice implementation! :)