leafo/scssphp — pull request #8 by clue (2012-10-06 00:18:04+00:00)
Title: Support custom importers (import callbacks)

SASS supports [custom importers](http://sass-lang.com/docs/yardoc/file.SASS_REFERENCE.html#custom_importers), and so should scssphp. Essentially, this allows you to supply callback function to lookup import paths based on database queries or return paths that would otherwise be ignored (in my case importing vanilla CSS). This is a simple patch that allows supplying callback functions to `addImportPath()` along with basic unit tests and documentation.

I'm still getting used to scssphp (and the whole SASS-universe in general) but tried to keep the patch as non-obtrusive and conforming as possible. Any feedback is welcome!