At Mon, 11 May 2015 13:22:31 -0700, Alexis King wrote: > I’ve gotten my curly-fn meta-language > <https://github.com/lexi-lambda/racket-curly-fn> working, and it works great > within a module. However, evaluating #{+ 2} within the REPL just evaluates as > a > plain old vector, ignoring my readtable extension.
A readtable extension through an supplied `read` or `read-syntax` is used only for a module, not for a REPL or otherwise at run time. > What gives? Using @-expression syntax in the REPL works just fine when using > the at-exp meta-language, which seems pretty similar to my approach. The `at-exp` meta-language includes specific configuration for that effect: The `at-exp` reader installs a 'module-language property on a read module. The property value installs an answer for 'configure-runtime as the module's "language info". That answer causes the `configure` function from `at-exp/language/runtime-config` to called when the module is run (or, more precisely, just before the module is instantiated). The `configure` function sets the current readtable to support @-notation. The REPL uses the current readtable after the module is run. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
