It doesn't seem to matter how I set up the evaluator (using `make-base-eval' or `make-evaluator'). If an example fails to typecheck, it looks like an ugly documentation error. This is an actual example in the math docs, which I would really like to keep:

> (flabs (exact->inexact 0.5f0))
eval:8:0: Type Checker: Expected Flonum, but got
Positive-Single-Flonum
  in: (#%app exact->inexact (quote 0.5f0))


I want the error to look like it does in the REPL:

Type Checker: Expected Flonum, but got Positive-Single-Flonum
  in: (exact->inexact 0.5f0)


It seems all syntax errors are fugly:

> (cond [else 1.0] [else 2.0])
eval:11:0: cond: bad syntax (`else' clause must be last)
  at: (else 1.0)
  in: (cond (else 1.0) (else 2.0))


How can I fix this?

Neil ⊥
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