I’m working on and with ContextR for some time now. And since I am a proud member of the open source community, I registered ContextR at ohloh.net. It features a basic source code analysis, computing the lines of code for languages used and how many lines are used for comments.
The latter was a weak point for ContextR. But finally I managed to add significant documentation for all public interfaces. And there we go. ohloh states:
Across all Ruby projects on Ohloh, 16% of all source code lines are comments. For ContextR, this figure is 22%.
If you are interested in these, visit contextr.rubyforge.org/contextr.
I mainly work with Rails, Backbone, and Bootstrap, but I am also good at picking up new frameworks, since I will probably know most of their concepts from other projects.