The goal of my library is to enable quick data mining on wikipedia. Search is just one use case. As an example, you might want to build a content classifier to automatically categorize web pages into wikipedia categories (like politics, sports, etc). To go about doing this, you would need to parse wiki pages and extract features (like n-grams) for a particular category. The C library transforms plain wiki text to a parsed object, that you can use to extract what information you want. The only advantage is that it does this incredibly fast.