- Sep 20, 2014
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Christophe Rhodes authored
Set up the REPL reporting function in it, not at toplevel
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- Apr 20, 2014
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Christophe Rhodes authored
For better presentations
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- Apr 06, 2011
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Christophe Rhodes authored
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- Aug 31, 2010
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Christophe Rhodes authored
This makes my worry about lacking weak hash tables a bit less pressing.
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Christophe Rhodes authored
There's a lot here that's ugly, unfinished or just downright horrible. Most notably, presentation support depends on swank-side read-time evaluation (indicated with Common Lisp syntax, which hilariously is a comment in R). We can't support that in general, but we can special-case the presentation-specific operator. But then the next difficulty comes along; actually performing that read-time evaluation needs to happen in a different environment than the evaluation of the REPL form. In order to achieve this, we abuse bquote() the equivalent of Lisp's backquote facility, by calling what in CL terms would be its macro-function on the parsed, preprocessed expression; only after doing that (and hence resolving the `read-time' evaluations) do we evaluate the call itself. The implementation of presentation protocol messages is also slightly ugly; having to implement cl:nth-value is particulraly horrible, but the lack of weak references / weak tables in R (at least as far as I can tell at the moment) is a cause of niggling concern.
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