From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
To: Jarmo Hurri <jarmo.hurri@iki.fi>
Cc: emacs-orgmode@gnu.org
Subject: Re: PATCH: Processing language support in Babel
Date: Mon, 16 Mar 2015 22:51:48 +0100 [thread overview]
Message-ID: <87oans1uh7.fsf@nicolasgoaziou.fr> (raw)
In-Reply-To: <8761a5ys9q.fsf@iki.fi> (Jarmo Hurri's message of "Fri, 13 Mar 2015 14:51:45 +0200")
Hello,
Jarmo Hurri <jarmo.hurri@iki.fi> writes:
> Please find two files attached to this message.
Thank you.
> +;; 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
> +;;
> +;; 3) when not exporting html, evaluation of processing code results
> +;; in interactive viewing of the results via Processing 2.0 Emacs
> +;; mode; note that the user is responsible for making sure that
> +;; processing.js is available on the website
It is awkward (and fragile) to guess the current export back-end used.
Wouldn't it be simpler to do "2" if :results is html and "3" otherwise?
> +;; declaration needed because requiring ob does not define the variable
> +(eval-when-compile (defvar org-babel-temporary-directory))
Isn't
(defvar org-babel-temporary-directory)
sufficient?
> +;; default header tags depend on whether exporting html or not; if not
> +;; exporting html, then no results are produced; otherwise results are
> +;; html
It shouldn't.
> +;; a running index for producing unique ids for processing sketches
> +(defvar org-babel-processing-sketch-number 0)
> +(add-hook 'org-export-before-processing-hook
> + (lambda (backend) (setq org-babel-processing-sketch-number 0)))
It pollutes `org-export-before-processing-hook'. What about using sha1
of the contents of the code block instead?
> +(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))))
> + (if (and (not (null org-babel-exp-reference-buffer))
> + (string= org-export-current-backend "html"))
This will not work if current back-end is derived from "html".
> + ;; results are html if exporting html
> + (let ((sketch-canvas-id
> + (concat "org-processing-canvas-"
> + (number-to-string org-babel-processing-sketch-number))))
(format "org-processing-canvas-%d" org-babel-processing-sketch-number)
> + (setq org-babel-processing-sketch-number
> + (1+ org-babel-processing-sketch-number))
(incf org-babel-processing-sketch-number)
> +(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'."
> + (let* ((type 'int)
> + find-type ; for byte-compiler
> + (find-type
> + (function
Not needed.
> + (lambda (row)
> + (catch 'exit
> + (mapc (lambda (el)
> + (cond ((listp el) (funcall find-type el))
> + ((stringp el) (throw 'exit (setq type 'String)))
> + ((floatp el) (setq type 'float))))
> + row))))))
(lambda (row)
(dolist (el row type)
(cond ...)))
> + (funcall find-type data) type))
^^^^
not needed
Regards,
--
Nicolas Goaziou
next prev parent reply other threads:[~2015-03-17 15:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-13 12:51 PATCH: Processing language support in Babel Jarmo Hurri
2015-03-16 21:51 ` Nicolas Goaziou [this message]
2015-03-31 7:32 ` Jarmo Hurri
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