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+;;; ob-lisp.el --- Babel Functions for Common Lisp   -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2009-2021 Free Software Foundation, Inc.
+
+;; Authors: Joel Boehland
+;;	 Eric Schulte
+;;	 David T. O'Toole <dto@gnu.org>
+;; Keywords: literate programming, reproducible research
+;; Homepage: 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 '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)
+	 (body (if (null vars) (org-trim body)
+		 (concat "(let ("
+			 (mapconcat
+			  (lambda (var)
+			    (format "(%S (quote %S))" (car var) (cdr var)))
+			  vars "\n      ")
+			 ")\n" body ")"))))
+    (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."
+  (require (pcase org-babel-lisp-eval-fn
+	     (`slime-eval 'slime)
+	     (`sly-eval 'sly)))
+  (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
+                              `(swank: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)
+  ;; TODO: better would be to replace #(...) with [...]
+  (replace-regexp-in-string "#(" "(" results))
+
+(provide 'ob-lisp)
+
+;;; ob-lisp.el ends here