DCT: D compiler as a collection of libraries

[Roman D. Boiko]

There were several discussions about the need for a D compiler 
library.

I propose my draft implementation of lexer for community review:
https://github.com/roman-d-boiko/dct

Lexer is based on Brian Schott's project 
https://github.com/Hackerpilot/Dscanner, but it has been 
refactored and extended (and more changes are on the way).

The goal is to have source code loading, lexer, parser and 
semantic analysis available as parts of Phobos. These libraries 
should be designed to be usable in multiple scenarios (e.g., 
refactoring, code analysis, etc.).

My commitment is to have at least front end built this year (and 
conforming to the D2 specification unless explicitly stated 
otherwise for some particular aspect).

Please post any feed here. A dedicated project web-site will be 
created later.