Note that the test suite currently fails when non-standard features are enabled :-(

in accordance with all existing implementations,
though arguably not the strictest interpretation of the standard.

More tests, more cases.
Print (a . ,b) correctly.
Run tests at both runtime and macro-expansion-time.
Fix fare-quasiquote-optima subpatterns on non-SBCL.

Is that a bug or feature that subpatterns worked on SBCL?
SBCL apparently identified struct slot by symbol-name rather than by symbol!

Upgrade the README to use markdown.

Tweak .asd files.

Improve hygiene with syntax tables.
Add a few test cases from recent SBCL qq pprinter bug. NB: we fail them.