Tests failed locally on Windows; fixed their invocation.

Style fixes, added macro-based error handling.

Small style fixes according to the suggestions.

Some comments stopped being relevant to the current patch.

Parser rewritten to a single non-templated class. The new patch supports the same set of resources as before.

Code rewritten a little bit.

Remove unnecessary namespace annotation; fix the non-evaluated assert() bug.

Style fixes.

Forgot to remove llvm::'s.

Fixed style/nits; tokenizer starts using Error/Expected.

It seems that single-quotes fail on Windows ('/h' is considered a whole argument, including the quotes). Double-quotes should work, though.

Removed unnecessary error handling methods.

Typos fixed.

Minor changes, according to the request.

Fix "no-newline-at-the-end-of-file" message.

Fixes done.
Added macro test.
Docs should be working now.
Updated docs.

Clang-formatted code.
Added a simple macro test.
Resolved @Prazek's issues.

You could also think whether char literals should be converted to true/false, too. Apart from this (and other people's doubts), everything's fine.

This check throws a warning also on the conversion to floats (probably very rare ones):