This also includes a new type for Value String.
The tests fail now, although it parses successfully. I'll use a pretty
printer in next commit so that it's easier to spot the differences.
Onces this is working I'll add the rest of the escaped characters.
They are less efficient but they are giving me issues because they don't
fail. Once this is working I'll look into optimizing.
Also disable skipping comments until I figure out how to skip both
comments and space at the same time.
- Add token combinator to simplify whitespace handling.
- Simplify whiteSpace parsers.
- Add `optempty` to handle pure mempty cases. `empty /= pure mempty`.
- Use `between` combinators for brackets, braces and parens.
This also includes small adjustments to the AST.
WIP: This parser just type checks, it hasn't even been tested manually.
Check new tasks in the TODO file and the TODO comments in the code for
more gotchas.
