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Test both compiled and non-compiled variants of the test in order to
stress the scenarios of *when* the read-macro is set.
Also change the (eval-when ...) case used:
- "compile": for when the code is being compiled only, and before its
execution;
- "eval": for the the code is being evaluated only, during its
execution.
Also from the Guile manual (via 'info (guile)Loading'):
Changing ‘current-reader’ is typically useful to introduce local
syntactic changes, such that code following the ‘fluid-set!’ call
is read using the newly installed reader. The ‘current-reader’
change should take place at evaluation time when the code is
evaluated, or at compilation time when the code is compiled:
(eval-when (compile eval)
(fluid-set! current-reader my-own-reader))
The ‘eval-when’ form above ensures that the ‘current-reader’ change
occurs at the right time.
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