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copy pasting sweet expressions

This page is part of the web mail archives of SRFI 110 from before July 7th, 2015. The new archives for SRFI 110 contain all messages, not just those from before July 7th, 2015.

Nice idea, but how to deal with my frequent copy/paste actions in the definitionss window of DrRacket?

For sexprs, copy/paste is easy in the definitions window of DrRacket. Just copy/paste and reindent. How easy would this be with sweet expressions? Can we copy/paste at a choosen level of indentation?
Say I have a definition
(define (f a b c)
  def/expr ...
When I am not sure that function f produces correct results, I modify it temporarily as:
(define (f a b c) (let ((r (let()
  def/expr ...
  last-expr)))  (printf "result of proc f: ~s~n~n" r) r))

Notice that here the indenting is deliberately wrong. Using the temporal "let ((r" form I don't care about the indenting. After seeing what is going on I use ctl Z in order to remove the extra let-form and the print-form. How would this be with sweet expressions?

Wish you good luck. A sweet expressions language is certainly possible in Racket. If i can be useful for (parts of) the implementation,mail me privately.