I was recently asked to release some of my code to Maven Central, and therefore had to figure out how to do it. I’ve now released these khubla.com libraries:
The maven coordinates for each are documented on the github pages.
I’ve been interested in HTML parsing for a while now. There are a number of reasons to do this, such as: Validating that what claims to be HTML, is HTML Finding every style sheet and script in an HTML file Pretty-printing Syntax highlighting Linting Translating between markup languages, for example generating JSPs from PHP, or…
When writing custom servlets, it can be quite useful to unit test them. In my case, I used a combination of testng and mockito. The basic idea is simple; mock a HttpServletRequest, and a HttpServletResponse and pass them to the custom servlet. There is a bit more too it, so here’s an example. final HttpServletRequest…
Commons Math is an Apache library which includes a variety of mathematical tools, including 1st and 2nd-order ODE solvers. In order to familiarize myself with the ODE solvers, I wrote a simple program to solve an RC charging circuit. The circuit has these parameters: R (ohms), the resistance of the resistor C (farads), the capacitance…
I recently got a call from a friend who has a library of thousands of PDF documents. He wanted to know there was a such thing as a personal search engine that could index his library of documents, and allow full text search inside of them. I have a giant document library too, including PDF…
If you haven’t read this book, I highly recommend it. I discovered it in high school and finally purchased my first copy at the now-gone Duthie Books in Kitsilano. Without going into the details of the book, the author uses a simple Peano arithmetic called Typographical Number Theory (TNT) to illustrate some of his points. An example…
I’ve recently been quite interested in Graph languages, not for Graph Databases, but for representing information, in code that is essentially “things” and “relationships”. For example, one perspective on Organizations is that they are simply representable as people, systems and the information that flows between them. Those three building blocks are, in theory, enough to…