问题
I use paredit on emacs with SLIME's repl. This means that at any point during my typing on the repl, my s-expressions are balanced.
However, they may not be complete, and I might want to continue typing inside them in another line, as follows:
CL-USER> (defun print-hello ()
)
When I start a new line by pressing the enter key, however, the SLIME repl executes my incomplete expression. I want it to wait for me to complete the expression, as follows:
CL-USER> (defun print-hello ()
(format t "Hello, world"))
How do I make this happen please?
回答1:
For that situations, when writing long s-expressions in REPL I think that the best way is to use the slime scratch buffer. you can edit it and after that execute with
C-j
No problem pressing enter inside the buffer, I'm using sly but the capture could be like this:
(defun print-hello ()
(format t "Hello, world"))
; => PRINT-HELLO
Also another alternative is working without the last parent :-(
or as suggested in a comment by @jkiisky, type the expression and add in the middle of the s expression C-j
CL-USER> (defun
)
回答2:
Related to your question, lispy provides integration with SLIME.
I typically never type anything into the REPL buffer. Instead, I edit all code in place in the source file, and use e to eval the current sexp.
lispy is also a super-set of paredit, if compatibility is your concern.
来源：https://stackoverflow.com/questions/47283937/slime-on-emacs-with-paredit-in-repl-how-to-prevent-execution-of-incomplete-but