Orc/discount — pull request #47 by lhagan (2012-05-24 02:41:32+00:00)
Title: Add GitHub Flavored Markdown (GFM) features

These changes add support for a couple of GFM features:

1. Treat newlines as real line breaks (code from issue #16).
2. Backtick code fences (```) with optional language identifier for syntax highlighting.

Reference: http://github.github.com/github-flavored-markdown/

I implemented these as runtime options, but later noticed in another issue that you aren't keen on adding anything else to the existing 32-bit flag word. If you're interested in pulling them in but would prefer another approach to enabling/disabling them, I'd be happy to make the necessary changes.