On Wed, 18 Dec 2019, 09:25 oldk1331, <oldk1331@gmail.com> wrote:

> Hi all,
>
> This is a simple change that adds support for :epilogue in ob-scheme.
>
> Best wishes,
> Qian
>
> ==========
>
> * lisp/ob-scheme.el (org-babel-expand-body:scheme): Add :epilogue
>   param support.
>
> TINYCHANGE
> ---
>  lisp/ob-scheme.el | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/lisp/ob-scheme.el b/lisp/ob-scheme.el
> index 21d9fad2b..ee0d93c13 100644
> --- a/lisp/ob-scheme.el
> +++ b/lisp/ob-scheme.el
> @@ -71,7 +71,8 @@
>  (defun org-babel-expand-body:scheme (body params)
>    "Expand BODY according to PARAMS, return the expanded body."
>    (let ((vars (org-babel--get-vars params))
> -       (prepends (cdr (assq :prologue params))))
> +       (prepends (cdr (assq :prologue params)))
> +       (postpends (cdr (assq :epilogue params))))
>      (concat (and prepends (concat prepends "\n"))
>             (if (null vars) body
>               (format "(let (%s)\n%s\n)"
> @@ -80,7 +81,8 @@
>                          (format "%S" (print `(,(car var) ',(cdr var)))))
>                        vars
>                        "\n      ")
> -                     body)))))
> +                     body))
> +           (and postpends (concat "\n" postpends)))))
>
>
>  (defvar org-babel-scheme-repl-map (make-hash-table :test #'equal)
> --
> 2.24.0
>

LGTM as another ob-scheme user. I don't think Scheme code should need the
"\n", but it's consistent with the existing handling for prologue.

Best wishes,
      Neil