Parsing selectors with interpolants.
Don't need these files anymore.
Selector interpolation works robustly (sans a few special cases).
Allowing attribute selectors to match against identifiers. Passes another interpolation test.
Fixing legacy stuff; don't need to pass Node handles by reference anymore.
Moving selector expansion into the eval phase. Necessary for inheritance.
Simplifying the emitter now that selectors are all expanded beforehand.
Cleaning up the new selector expander & emitter. All tests pass again.
Removing some commented code.
Laying down infrastructure for selector inheritance.
Logging stuff to make sure the inheritance infrastructure does what I think it does.
Commenting the eval/apply functions, since they're getting a bit dense.
Rudimentary selector inheritance.
More inheritance functionality.
Working on full-blown selector comparison (necessary for full-blown inheritance).
Even more inheritance (attribute selectors).
Using a multimap to store selector extension requests -- necessary to allow a selector to be extended multiple times.
Working on selector context combination for inheritance.
Hwooooaaaah!!! Handling the difficult cases!!!
Parsing @if directives.