Text editor library. A library with functions that could be useful for a text editor. The library contain the following functions:
•determine if a word is present in a document.
•determine the number of occurrences for a word in a document.
•replace all instances of a word in a document with another given word.
•replace specic instances of a word in a document with another given word.
•replace the X appearance of a word with another given word.
•create a sorted list of words by the number of occurrences in a document.
•return the number of a word occurrences in text.