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;;; ob-lisp.el --- Babel Functions for Common Lisp -*- lexical-binding: t; -*-
;; Copyright (C) 2009-2025 Free Software Foundation, Inc.
;; Authors: Joel Boehland
;; Eric Schulte
;; David T. O'Toole <dto@gnu.org>
;; Keywords: literate programming, reproducible research
;; URL: https://orgmode.org
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;;; Support for evaluating Common Lisp code, relies on SLY or SLIME
;;; for all eval.
;;; Requirements:
;; Requires SLY (Sylvester the Cat's Common Lisp IDE) or SLIME
;; (Superior Lisp Interaction Mode for Emacs). See:
;; - https://github.com/capitaomorte/sly
;; - https://common-lisp.net/project/slime/
;;; Code:
(require 'org-macs)
(org-assert-version)
(require 'ob)
(require 'org-macs)
(declare-function sly-eval "ext:sly" (sexp &optional package))
(declare-function slime-eval "ext:slime" (sexp &optional package))
(defvar org-babel-tangle-lang-exts)
(add-to-list 'org-babel-tangle-lang-exts '("lisp" . "lisp"))
(defvar org-babel-default-header-args:lisp '())
(defvar org-babel-header-args:lisp '((package . :any)))
(defcustom org-babel-lisp-eval-fn #'slime-eval
"The function to be called to evaluate code on the Lisp side.
Valid values include `slime-eval' and `sly-eval'."
:group 'org-babel
:version "26.1"
:package-version '(Org . "9.0")
:type 'symbol)
(defcustom org-babel-lisp-dir-fmt
"(let ((*default-pathname-defaults* #P%S\n)) %%s\n)"
"Format string used to wrap code bodies to set the current directory.
For example a value of \"(progn ;; %s\\n %%s)\" would ignore the
current directory string."
:group 'org-babel
:version "24.1"
:type 'string)
(defun org-babel-expand-body:lisp (body params)
"Expand BODY according to PARAMS, return the expanded body."
(let* ((vars (org-babel--get-vars params))
(result-params (cdr (assq :result-params params)))
(print-level nil) (print-length nil)
(prologue (cdr (assq :prologue params)))
(epilogue (cdr (assq :epilogue params)))
(body (if (null vars) (org-trim body)
(concat "(let ("
(mapconcat
(lambda (var)
(format "(%S (quote %S))" (car var) (cdr var)))
vars "\n ")
")\n"
(and prologue (concat prologue "\n"))
body
(and epilogue (concat "\n" epilogue "\n"))
")"))))
(if (or (member "code" result-params)
(member "pp" result-params))
(format "(pprint %s)" body)
body)))
(defun org-babel-execute:lisp (body params)
"Execute a block of Common Lisp code with Babel.
BODY is the contents of the block, as a string. PARAMS is
a property list containing the parameters of the block."
(let (eval-and-grab-output)
(pcase org-babel-lisp-eval-fn
(`slime-eval (org-require-package 'slime "SLIME")
(setq eval-and-grab-output 'swank:eval-and-grab-output))
(`sly-eval (org-require-package 'sly "SLY")
(setq eval-and-grab-output 'slynk:eval-and-grab-output)))
(org-babel-reassemble-table
(let ((result
(funcall (if (member "output" (cdr (assq :result-params params)))
#'car #'cadr)
(with-temp-buffer
(insert (org-babel-expand-body:lisp body params))
(funcall org-babel-lisp-eval-fn
`(,eval-and-grab-output
,(let ((dir (if (assq :dir params)
(cdr (assq :dir params))
default-directory)))
(format
(if dir (format org-babel-lisp-dir-fmt dir)
"(progn %s\n)")
(buffer-substring-no-properties
(point-min) (point-max)))))
(cdr (assq :package params)))))))
(org-babel-result-cond (cdr (assq :result-params params))
(org-strip-quotes result)
(condition-case nil
(read (org-babel-lisp-vector-to-list result))
(error result))))
(org-babel-pick-name (cdr (assq :colname-names params))
(cdr (assq :colnames params)))
(org-babel-pick-name (cdr (assq :rowname-names params))
(cdr (assq :rownames params))))))
(defun org-babel-lisp-vector-to-list (results)
"Convert #(...) values in RESULTS string into a (...) list."
;; TODO: better would be to replace #(...) with [...]
(replace-regexp-in-string "#(" "(" results))
(provide 'ob-lisp)
;;; ob-lisp.el ends here
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