| commit | author | age | ||
| 76bbd0 | 1 | ;;; ob-emacs-lisp.el --- Babel Functions for Emacs-lisp Code -*- lexical-binding: t; -*- |
| C | 2 | |
| 3 | ;; Copyright (C) 2009-2018 Free Software Foundation, Inc. | |
| 4 | ||
| 5 | ;; Author: Eric Schulte | |
| 6 | ;; Keywords: literate programming, reproducible research | |
| 7 | ;; Homepage: https://orgmode.org | |
| 8 | ||
| 9 | ;; This file is part of GNU Emacs. | |
| 10 | ||
| 11 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
| 12 | ;; it under the terms of the GNU General Public License as published by | |
| 13 | ;; the Free Software Foundation, either version 3 of the License, or | |
| 14 | ;; (at your option) any later version. | |
| 15 | ||
| 16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 19 | ;; GNU General Public License for more details. | |
| 20 | ||
| 21 | ;; You should have received a copy of the GNU General Public License | |
| 22 | ;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. | |
| 23 | ||
| 24 | ;;; Commentary: | |
| 25 | ||
| 26 | ;; Org-Babel support for evaluating emacs-lisp code | |
| 27 | ||
| 28 | ;;; Code: | |
| 29 | (require 'ob) | |
| 30 | ||
| 31 | (defconst org-babel-header-args:emacs-lisp '((lexical . :any)) | |
| 32 | "Emacs-lisp specific header arguments.") | |
| 33 | ||
| 34 | (defvar org-babel-default-header-args:emacs-lisp '((:lexical . "no")) | |
| 35 | "Default arguments for evaluating an emacs-lisp source block. | |
| 36 | ||
| 37 | A value of \"yes\" or t causes src blocks to be eval'd using | |
| 38 | lexical scoping. It can also be an alist mapping symbols to | |
| 39 | their value. It is used as the optional LEXICAL argument to | |
| 40 | `eval', which see.") | |
| 41 | ||
| 42 | (defun org-babel-expand-body:emacs-lisp (body params) | |
| 43 | "Expand BODY according to PARAMS, return the expanded body." | |
| 44 | (let ((vars (org-babel--get-vars params)) | |
| 45 | (print-level nil) | |
| 46 | (print-length nil)) | |
| 47 | (if (null vars) (concat body "\n") | |
| 48 | (format "(let (%s)\n%s\n)" | |
| 49 | (mapconcat | |
| 50 | (lambda (var) | |
| 51 | (format "%S" (print `(,(car var) ',(cdr var))))) | |
| 52 | vars "\n ") | |
| 53 | body)))) | |
| 54 | ||
| 55 | (defun org-babel-execute:emacs-lisp (body params) | |
| 56 | "Execute a block of emacs-lisp code with Babel." | |
| 57 | (save-window-excursion | |
| 58 | (let* ((lexical (cdr (assq :lexical params))) | |
| 59 | (result-params (cdr (assq :result-params params))) | |
| 60 | (body (format (if (member "output" result-params) | |
| 61 | "(with-output-to-string %s\n)" | |
| 62 | "(progn %s\n)") | |
| 63 | (org-babel-expand-body:emacs-lisp body params))) | |
| 64 | (result (eval (read (if (or (member "code" result-params) | |
| 65 | (member "pp" result-params)) | |
| 66 | (concat "(pp " body ")") | |
| 67 | body)) | |
| 68 | (if (listp lexical) | |
| 69 | lexical | |
| 70 | (member lexical '("yes" "t")))))) | |
| 71 | (org-babel-result-cond result-params | |
| 72 | (let ((print-level nil) | |
| 73 | (print-length nil)) | |
| 74 | (if (or (member "scalar" result-params) | |
| 75 | (member "verbatim" result-params)) | |
| 76 | (format "%S" result) | |
| 77 | (format "%s" result))) | |
| 78 | (org-babel-reassemble-table | |
| 79 | result | |
| 80 | (org-babel-pick-name (cdr (assq :colname-names params)) | |
| 81 | (cdr (assq :colnames params))) | |
| 82 | (org-babel-pick-name (cdr (assq :rowname-names params)) | |
| 83 | (cdr (assq :rownames params)))))))) | |
| 84 | ||
| 85 | (org-babel-make-language-alias "elisp" "emacs-lisp") | |
| 86 | ||
| 87 | (provide 'ob-emacs-lisp) | |
| 88 | ||
| 89 | ||
| 90 | ||
| 91 | ;;; ob-emacs-lisp.el ends here | |
