To run any of the files in the play/ directory use:
> node peg-play.mjs play/some-file.txt
This will compile the pPEG grammar, parse the input tests, and report everything.
Try date.txt for a small example.
This is a simple way to play around with a pPEG grammar.
After developing a grammar the play files can become test case files.
For more info on peg-play.mjs and the test file format:
> node peg-play.mjs -help