Text difference algorithm

Question

I need an algorithm that can compare two text files and highlight their difference and ( even better!) can compute their difference in a meaningful way (like two similar fi

Answer 1

Take a look at the Fuzzy module. It has fast (written in C) based algorithms for soundex, NYSIIS and double-metaphone.

A good introduction can be found at: http://www.informit.com/articles/article.aspx?p=1848528