The Whitewash module allows Ruby programs to clean up any HTML document or fragment coming from an untrusted source and to remove all dangerous constructs that could be used for cross-site scripting or request forgery. All HTML tags, attribute names and values, and CSS properties are filtered through a whitelist that defines which names and what kinds of values are allowed; everything that doesn’t match the whitelist is removed. The whitelist is provided externally, and the default whitelist is loaded from the whitelist.yaml shipped with Whitewash. The default is the most strict (for example, it does not allow cross-site links to images in IMG tags) and can be considered safe for all uses.
qfan.rb manages the CPU fan to act on CPU temperature just like the ASUS Q-Fan does on P4P800 motherboards. Other motherboards are untested. It features a daemon mode. All speeds and temperatures are configurable, so select a high speed for your fan that doesn't resonate your computer case.
tbibtools provide a simple regexp-based BibTeX parser that can be used to sort bib files, reformat bib files, list keys in a bib file, and show bib entries matching a regular expression. It is available as both a script and a VIM plugin. It makes a few assumptions about how a bib file should look like.
MPI Ruby is a Ruby binding of MPI. The primary goal in making this binding was to make the power of MPI available to Ruby users in a way that fits into the language's object oriented model. In order to do this, the buffer and datatype management necessary in the C, C++, and Fortran bindings have been removed. What this means is that MPI Ruby allows you to treat objects as messages. MPI Ruby also aims to be a complete binding to MPI, in that it offers access to nearly all functionality of MPI.