| This suite tests conformance to the editing spec written long ago by Aryeh | 
 | Gregor.  Nobody actually implements the spec, but the tests are still useful | 
 | for regression testing.  The files in data/ were generated from a JavaScript | 
 | implementation of the specification using a complex procedure that can't | 
 | actually be replicated right now as-is.  Editing them manually is possible, but | 
 | they're not really meant to be human-readable.  If anyone is interested, it | 
 | would be possible for Aryeh to get the test generation procedure working again. | 
 | Or you could look into the repository history and figure out how to do it | 
 | yourself, if you're brave. |