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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-processing.el
parentb07628dddf418d4f47b858e6c35fd3520fbaeed2 (diff)
parentef160dea332af4b4fe5e2717b962936c67e5fe9e (diff)
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-;;; ob-processing.el --- Babel functions for processing -*- lexical-binding: t; -*-
-
-;; Copyright (C) 2015-2021 Free Software Foundation, Inc.
-
-;; Author: Jarmo Hurri (adapted from ob-asymptote.el written by Eric Schulte)
-;; 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:
-
-;; Babel support for evaluating processing source code.
-;;
-;; This differs from most standard languages in that
-;;
-;; 1) there is no such thing as a "session" in processing
-;;
-;; 2) results can only be exported as html; in this case, the
-;; processing code is embedded via a file into a javascript block
-;; using the processing.js module; the script then draws the
-;; resulting output when the web page is viewed in a browser; note
-;; that the user is responsible for making sure that processing.js
-;; is available on the website
-;;
-;; 3) it is possible to interactively view the sketch of the
-;; Processing code block via Processing 2.0 Emacs mode, using
-;; `org-babel-processing-view-sketch'. You can bind this command
-;; to, e.g., C-c C-v C-k with
-;;
-;; (define-key org-babel-map (kbd "C-k") 'org-babel-processing-view-sketch)
-
-
-;;; Requirements:
-
-;; - processing2-emacs mode :: https://github.com/ptrv/processing2-emacs
-;; - Processing.js module :: https://processingjs.org/
-
-;;; Code:
-(require 'ob)
-(require 'sha1)
-
-(declare-function processing-sketch-run "ext:processing-mode" ())
-
-(defvar org-babel-temporary-directory)
-
-(defvar org-babel-tangle-lang-exts)
-(add-to-list 'org-babel-tangle-lang-exts '("processing" . "pde"))
-
-;; Default header tags depend on whether exporting html or not; if not
-;; exporting html, then no results are produced; otherwise results are
-;; HTML.
-(defvar org-babel-default-header-args:processing
- '((:results . "html") (:exports . "results"))
- "Default arguments when evaluating a Processing source block.")
-
-(defvar org-babel-processing-processing-js-filename "processing.js"
- "Filename of the processing.js file.")
-
-(defun org-babel-processing-view-sketch ()
- "Show the sketch of the Processing block under point in an external viewer."
- (interactive)
- (require 'processing-mode)
- (let ((info (org-babel-get-src-block-info)))
- (if (string= (nth 0 info) "processing")
- (let* ((body (nth 1 info))
- (params (org-babel-process-params (nth 2 info)))
- (sketch-code
- (org-babel-expand-body:generic
- body
- params
- (org-babel-variable-assignments:processing params))))
- ;; Note: sketch filename can not contain a hyphen, since it
- ;; has to be a valid java class name; for this reason
- ;; make-temp-file is repeated until no hyphen is in the
- ;; name; also sketch dir name must be the same as the
- ;; basename of the sketch file.
- (let* ((temporary-file-directory org-babel-temporary-directory)
- (sketch-dir
- (let (sketch-dir-candidate)
- (while
- (progn
- (setq sketch-dir-candidate
- (make-temp-file "processing" t))
- (when (string-match-p
- "-"
- (file-name-nondirectory sketch-dir-candidate))
- (delete-directory sketch-dir-candidate)
- t)))
- sketch-dir-candidate))
- (sketch-filename
- (concat sketch-dir
- "/"
- (file-name-nondirectory sketch-dir)
- ".pde")))
- (with-temp-file sketch-filename (insert sketch-code))
- (find-file sketch-filename)
- (processing-sketch-run)
- (kill-buffer)))
- (message "Not inside a Processing source block."))))
-
-(defun org-babel-execute:processing (body params)
- "Execute a block of Processing code.
-This function is called by `org-babel-execute-src-block'."
- (let ((sketch-code
- (org-babel-expand-body:generic
- body
- params
- (org-babel-variable-assignments:processing params))))
- ;; Results are HTML.
- (let ((sketch-canvas-id (concat "ob-" (sha1 sketch-code))))
- (concat "<script src=\""
- org-babel-processing-processing-js-filename
- "\"></script>\n <script type=\"text/processing\""
- " data-processing-target=\""
- sketch-canvas-id
- "\">\n"
- sketch-code
- "\n</script> <canvas id=\""
- sketch-canvas-id
- "\"></canvas>"))))
-
-(defun org-babel-prep-session:processing (_session _params)
- "Return an error if the :session header argument is set.
-Processing does not support sessions."
- (error "Processing does not support sessions"))
-
-(defun org-babel-variable-assignments:processing (params)
- "Return list of processing statements assigning the block's variables."
- (mapcar #'org-babel-processing-var-to-processing
- (org-babel--get-vars params)))
-
-(defun org-babel-processing-var-to-processing (pair)
- "Convert an elisp value into a Processing variable.
-The elisp value PAIR is converted into Processing code specifying
-a variable of the same value."
- (let ((var (car pair))
- (val (let ((v (cdr pair)))
- (if (symbolp v) (symbol-name v) v))))
- (cond
- ((integerp val)
- (format "int %S=%S;" var val))
- ((floatp val)
- (format "float %S=%S;" var val))
- ((stringp val)
- (format "String %S=\"%s\";" var val))
- ((and (listp val) (not (listp (car val))))
- (let* ((type (org-babel-processing-define-type val))
- (fmt (if (eq 'String type) "\"%s\"" "%s"))
- (vect (mapconcat (lambda (e) (format fmt e)) val ", ")))
- (format "%s[] %S={%s};" type var vect)))
- ((listp val)
- (let* ((type (org-babel-processing-define-type val))
- (fmt (if (eq 'String type) "\"%s\"" "%s"))
- (array (mapconcat (lambda (row)
- (concat "{"
- (mapconcat (lambda (e) (format fmt e))
- row ", ")
- "}"))
- val ",")))
- (format "%S[][] %S={%s};" type var array))))))
-
-(defun org-babel-processing-define-type (data)
- "Determine type of DATA.
-
-DATA is a list. Return type as a symbol.
-
-The type is `String' if any element in DATA is a string.
-Otherwise, it is either `float', if some elements are floats, or
-`int'."
- (letrec ((type 'int)
- (find-type
- (lambda (row)
- (dolist (e row type)
- (cond ((listp e) (setq type (funcall find-type e)))
- ((stringp e) (throw 'exit 'String))
- ((floatp e) (setq type 'float)))))))
- (catch 'exit (funcall find-type data))))
-
-(provide 'ob-processing)
-
-;;; ob-processing.el ends here