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Re: HTML img tags

From: Konstantin Shakhnov
Subject: Re: HTML img tags
Date: Wed, 14 Dec 2016 12:51:02 +0300
User-agent: Mutt/1.5.23 (2014-03-12)

On Sat, Dec 10, 2016 at 10:53:02AM -0600, Hikaru Ichijyo wrote:
> Is there a mode, or some bit of Lisp code I can put in ~/.emacs, that
> will let Emacs guess the width= and height= attributes of an image file
> from the image itself when I create an img tag in HTML?  I realize
> there's probably no way for Emacs to do that without calling external
> programs as a subprocess, so it's unlikely, but it would certainly be
> convenient, and there are some HTML authoring programs that will do that
> for you.  The old KDE 3 app Quanta Plus did, but I'd rather do
> everything in Emacs.

If you have imagemagic this will work:

(defun my-insert-html-image-tag (filename)
  "Insert html tag for image file"
  (interactive "fFile name: ")
   (format "<img src=\"%s\" %s />"
            "\n" ""
            (format "identify %s | sed -r 's/^.* ([0-9]+)x([0-9]+) .*/width=\\1 
heght=\\2/'" filename))))))

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