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authormattkae <mattkae@protonmail.com>2022-06-07 08:23:47 -0400
committermattkae <mattkae@protonmail.com>2022-06-07 08:23:47 -0400
commitbd18a38c2898548a3664a9ddab9f79c84f2caf4a (patch)
tree95b9933376770381bd8859782ae763be81c2d72b /elpa/org-9.5.2/ob-js.el
parentb07628dddf418d4f47b858e6c35fd3520fbaeed2 (diff)
parentef160dea332af4b4fe5e2717b962936c67e5fe9e (diff)
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-;;; ob-js.el --- Babel Functions for Javascript -*- lexical-binding: t; -*-
-
-;; Copyright (C) 2010-2021 Free Software Foundation, Inc.
-
-;; Author: Eric Schulte
-;; Keywords: literate programming, reproducible research, js
-;; 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:
-
-;; Now working with SBCL for both session and external evaluation.
-;;
-;; This certainly isn't optimally robust, but it seems to be working
-;; for the basic use cases.
-
-;;; Requirements:
-
-;; - a non-browser javascript engine such as node.js https://nodejs.org/
-;; or mozrepl https://wiki.github.com/bard/mozrepl/
-;;
-;; - for session based evaluation mozrepl and moz.el are required see
-;; https://wiki.github.com/bard/mozrepl/emacs-integration for
-;; configuration instructions
-
-;;; Code:
-(require 'ob)
-
-(declare-function run-mozilla "ext:moz" (arg))
-(declare-function httpd-start "ext:simple-httpd" ())
-(declare-function run-skewer "ext:skewer-mode" ())
-(declare-function skewer-repl "ext:skewer-repl" ())
-(declare-function indium-run-node "ext:indium-nodejs" (command))
-(declare-function indium-eval "ext:indium-interaction" (string &optional callback))
-
-(defvar org-babel-default-header-args:js '()
- "Default header arguments for js code blocks.")
-
-(defvar org-babel-js-eoe "org-babel-js-eoe"
- "String to indicate that evaluation has completed.")
-
-(defcustom org-babel-js-cmd "node"
- "Name of command used to evaluate js blocks."
- :group 'org-babel
- :version "24.1"
- :type '(choice (const "node")
- (const "mozrepl")
- (const "skewer-mode")
- (const "indium")
- (const "js-comint"))
- :safe #'stringp)
-
-(defvar org-babel-js-function-wrapper
- "require('process').stdout.write(require('util').inspect(function(){%s}()));"
- "Javascript code to print value of body.")
-
-(defun org-babel-execute:js (body params)
- "Execute a block of Javascript code with org-babel.
-This function is called by `org-babel-execute-src-block'."
- (let* ((org-babel-js-cmd (or (cdr (assq :cmd params)) org-babel-js-cmd))
- (session (cdr (assq :session params)))
- (result-type (cdr (assq :result-type params)))
- (full-body (org-babel-expand-body:generic
- body params (org-babel-variable-assignments:js params)))
- (result (cond
- ;; no session specified, external evaluation
- ((string= session "none")
- (let ((script-file (org-babel-temp-file "js-script-")))
- (with-temp-file script-file
- (insert
- ;; return the value or the output
- (if (string= result-type "value")
- (format org-babel-js-function-wrapper full-body)
- full-body)))
- (org-babel-eval
- (format "%s %s" org-babel-js-cmd
- (org-babel-process-file-name script-file)) "")))
- ;; Indium Node REPL. Separate case because Indium
- ;; REPL is not inherited from Comint mode.
- ((string= session "*JS REPL*")
- (require 'indium-repl)
- (unless (get-buffer session)
- (indium-run-node org-babel-js-cmd))
- (indium-eval full-body))
- ;; session evaluation
- (t
- (let ((session (org-babel-prep-session:js
- (cdr (assq :session params)) params)))
- (nth 1
- (org-babel-comint-with-output
- (session (format "%S" org-babel-js-eoe) t body)
- (dolist (code (list body (format "%S" org-babel-js-eoe)))
- (insert (org-babel-chomp code))
- (comint-send-input nil t)))))))))
- (org-babel-result-cond (cdr (assq :result-params params))
- result (org-babel-js-read result))))
-
-(defun org-babel-js-read (results)
- "Convert RESULTS into an appropriate elisp value.
-If RESULTS look like a table, then convert them into an
-Emacs-lisp table, otherwise return the results as a string."
- (org-babel-read
- (if (and (stringp results)
- (string-prefix-p "[" results)
- (string-suffix-p "]" results))
- (org-babel-read
- (concat "'"
- (replace-regexp-in-string
- "\\[" "(" (replace-regexp-in-string
- "\\]" ")" (replace-regexp-in-string
- ",[[:space:]]" " "
- (replace-regexp-in-string
- "'" "\"" results))))))
- results)))
-
-(defun org-babel-js-var-to-js (var)
- "Convert VAR into a js variable.
-Convert an elisp value into a string of js source code
-specifying a variable of the same value."
- (if (listp var)
- (concat "[" (mapconcat #'org-babel-js-var-to-js var ", ") "]")
- (replace-regexp-in-string "\n" "\\\\n" (format "%S" var))))
-
-(defun org-babel-prep-session:js (session params)
- "Prepare SESSION according to the header arguments specified in PARAMS."
- (let* ((session (org-babel-js-initiate-session session))
- (var-lines (org-babel-variable-assignments:js params)))
- (when session
- (org-babel-comint-in-buffer session
- (goto-char (point-max))
- (dolist (var var-lines)
- (insert var)
- (comint-send-input nil t)
- (org-babel-comint-wait-for-output session)
- (sit-for .1)
- (goto-char (point-max)))))
- session))
-
-(defun org-babel-variable-assignments:js (params)
- "Return list of Javascript statements assigning the block's variables."
- (mapcar
- (lambda (pair) (format "var %s=%s;"
- (car pair) (org-babel-js-var-to-js (cdr pair))))
- (org-babel--get-vars params)))
-
-(defun org-babel-js-initiate-session (&optional session _params)
- "If there is not a current inferior-process-buffer in `SESSION' then create.
-Return the initialized session."
- (cond
- ((string= session "none")
- (warn "Session evaluation of ob-js is not supported"))
- ((string= "*skewer-repl*" session)
- (require 'skewer-repl)
- (let ((session-buffer (get-buffer "*skewer-repl*")))
- (if (and session-buffer
- (org-babel-comint-buffer-livep (get-buffer session-buffer))
- (comint-check-proc session-buffer))
- session-buffer
- ;; start skewer REPL.
- (httpd-start)
- (run-skewer)
- (skewer-repl)
- session-buffer)))
- ((string= "*Javascript REPL*" session)
- (require 'js-comint)
- (let ((session-buffer "*Javascript REPL*"))
- (if (and (org-babel-comint-buffer-livep (get-buffer session-buffer))
- (comint-check-proc session-buffer))
- session-buffer
- (call-interactively 'run-js)
- (sit-for .5)
- session-buffer)))
- ((string= "mozrepl" org-babel-js-cmd)
- (require 'moz)
- (let ((session-buffer (save-window-excursion
- (run-mozilla nil)
- (rename-buffer session)
- (current-buffer))))
- (if (org-babel-comint-buffer-livep session-buffer)
- (progn (sit-for .25) session-buffer)
- (sit-for .5)
- (org-babel-js-initiate-session session))))
- ((string= "node" org-babel-js-cmd )
- (error "Session evaluation with node.js is not supported"))
- (t
- (error "Sessions are only supported with mozrepl add \":cmd mozrepl\""))))
-
-(provide 'ob-js)
-
-;;; ob-js.el ends here