In order to debug MIT-Scheme scripts with Vim, I want to be able to run the script file currently being edited as conveniently as possible. Here is what I'm doing:
sicp.scm
(set! load-noisily? #t)
(define
(abs x)
(cond
((> x 0) x)
((= x 0) 0)
((< x 0) (- x))
)
)
(abs 42)
(abs -24)
(exit)
After executing :!mit-scheme --eval "(load \"sicp\")" when editing sicp.scm in Vim, I get:
Image saved on Saturday May 17, 2014 at 2:39:25 AM
Release 9.2 || Microcode 15.3 || Runtime 15.7 || SF 4.41 || LIAR/x86-64 4.118
Edwin 3.116
;Loading "sicp.scm"...
Kill Scheme (y or n)?
There are two main issues:
(abs 42) and (abs -24) are not printed, despite the fact that I've already set load-noisily? to #t.y manually to kill scheme each time the script is run. It should exit automatically, since there is an (exit) line in the end.Here is the expected output:
Image saved on Saturday May 17, 2014 at 2:39:25 AM
Release 9.2 || Microcode 15.3 || Runtime 15.7 || SF 4.41 || LIAR/x86-64 4.118
Edwin 3.116
;Loading "sicp.scm"... done
;Value: 42
;Value: 24
Moriturus te saluto.
How can I do this?
I'm not sure that this one qualifies as a full answer, but this is how to do it in vim+slimv:
(define ...) in sicp.scm, remove everything else from the file.sicp.scm in vim and press ,c to start/connect the swank server. This also opens a REPL window.(define ...) form and press ,d to define your function in the REPL.(abs 42)) in insert mode then press ENTER, this will evaluate the test expression and display the result in the REPL window.,d. Please note that when evaluating multiple s-expressions in one single step (e.g. evaluating a visual selection via ,r) then only the result of the last s-expression is displayed in the REPL window.