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A comment on Writing a Vi-like Graphics Editor in Racket. Parent comment

Re:Writing a Vi-like Graphics Editor in Racket by moron4hire on Tuesday May 14, 2013 @12:31PM (#5706020)
Well, #lang racket is not scheme, but one can run rnrs in the racket runtime. There are many languages that run on the racket runtime.
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Re:Writing a Vi-like Graphics Editor in Racket by jlgreco on Tuesday May 14, 2013 @02:46PM (#5707072)
IIRC, Arc/HN runs on mzscheme because they rely on mutable cons cells that newer versions (racket) don't provide. Could they run under new rackets by just telling racket to use a proper scheme?
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Re:Writing a Vi-like Graphics Editor in Racket by jeapostrophe on Wednesday May 15, 2013 @11:00PM (#5716649)
As a Racket author, I can tell you that we provided them with a hack to enable mutation on arbitrary conses, so they can upgrade whenever they wish, and I don't know whether they have or not.
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Re:Writing a Vi-like Graphics Editor in Racket by moron4hire on Tuesday May 14, 2013 @07:24PM (#5709088)
There is an mzscheme language mode, but it specifically does not include set-car! and set-cdr!.
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