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emacs: Fix converting scheme into elisp expression.

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* emacs/guix-geiser.el (guix-geiser-eval-read): Replace #f/#t with nil/t
  only when they follow "(" or " ".
This commit is contained in:
Alex Kost 2016-01-24 11:16:44 +03:00
parent c1f73569be
commit 4c68c53804
1 changed files with 17 additions and 5 deletions
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22
emacs/guix-geiser.el
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@ -46,11 +46,23 @@ Return a list of strings with result values of evaluation."
(defun guix-geiser-eval-read (str &optional repl)
"Evaluate STR with guile expression using Geiser REPL.
Return elisp expression of the first result value of evaluation."
;; Parsing scheme code with elisp `read' is probably not the best idea.
(read (replace-regexp-in-string
"#f\\|#<unspecified>" "nil"
(replace-regexp-in-string
"#t" "t" (car (guix-geiser-eval str repl))))))
;; The goal is to convert a string with scheme expression into elisp
;; expression.
(let ((result (car (guix-geiser-eval str repl))))
(cond
((or (string= result "#f")
(string= result "#<unspecified>"))
nil)
((string= result "#t")
t)
(t
(read (replace-regexp-in-string
"[ (]\\(#f\\)" "nil"
(replace-regexp-in-string
"[ (]\\(#t\\)" "t"
result
nil nil 1)
nil nil 1))))))
(defun guix-repl-send (cmd &optional save-history)
"Send CMD input string to the current REPL buffer.