* embed base64 encoded images in exported html
@ 2012-04-23 17:33 Noah Hoffman
2012-04-23 16:35 ` Eric Schulte
0 siblings, 1 reply; 3+ messages in thread
From: Noah Hoffman @ 2012-04-23 17:33 UTC (permalink / raw)
To: emacs-orgmode
Hello -
I am trying to export a monolithic html file by embedding
base64-encoded images, and I can't quite figure out how to prevent the
output from being escaped in one way or another... here's an example
of one permutation that doesn't do exactly what I want:
#+BEGIN_SRC R :results output
png('plot.png')
plot(1:10)
invisible(dev.off())
list.files(pattern = '*.png')
#+END_SRC
#+RESULTS:
: [1] "plot.png"
#+BEGIN_SRC python :results output raw :exports results
with open('plot.png', 'rb') as image:
data = image.read()
print '<img src="data:image/png;base64,%s">' % data.encode("base64")
#+END_SRC
#+RESULTS:
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAeAAAAHgCAMAAABKCk6nAAACuFBMVEUAAAABAQEDAwMEBAQHBwcJ
CQkKCgoMDAwNDQ0ODg4PDw8QEBARERESEhITExMUFBQVFRUWFhYXFxcYGBgZGRkaGhobGxscHBwf
Hx8gICAhISEiIiIjIyMkJCQlJSUmJiYnJycoKCgqKiorKyssLCwtLS0uLi4vLy8wMDAxMTEyMjI0
NDQ4ODg5OTk6Ojo7Ozs8PDw9PT0+Pj4/Pz9AQEBBQUFCQkJDQ0NERERFRUVGRkZHR0dISEhJSUlK
SkpLS0tMTExNTU1OTk5PT09QUFBRUVFSUlJTU1NUVFRVVVVXV1dYWFhZWVlaWlpbW1tcXFxdXV1e
<remainder truncated>
Here the "results" block is not exposed as raw html in the exported
file. Can anyone suggest how I might do this? I'm using emacs 23.4.1,
org-mode 7.8.03
Thanks a lot,
Noah
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: embed base64 encoded images in exported html
2012-04-23 17:33 embed base64 encoded images in exported html Noah Hoffman
@ 2012-04-23 16:35 ` Eric Schulte
2012-04-23 18:48 ` Noah Hoffman
0 siblings, 1 reply; 3+ messages in thread
From: Eric Schulte @ 2012-04-23 16:35 UTC (permalink / raw)
To: Noah Hoffman; +Cc: emacs-orgmode
Noah Hoffman <noah.hoffman@gmail.com> writes:
> Hello -
>
> I am trying to export a monolithic html file by embedding
> base64-encoded images, and I can't quite figure out how to prevent the
> output from being escaped in one way or another... here's an example
> of one permutation that doesn't do exactly what I want:
>
> #+BEGIN_SRC R :results output
> png('plot.png')
> plot(1:10)
> invisible(dev.off())
> list.files(pattern = '*.png')
> #+END_SRC
>
> #+RESULTS:
> : [1] "plot.png"
>
> #+BEGIN_SRC python :results output raw :exports results
> with open('plot.png', 'rb') as image:
> data = image.read()
> print '<img src="data:image/png;base64,%s">' % data.encode("base64")
> #+END_SRC
>
> #+RESULTS:
> <img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAeAAAAHgCAMAAABKCk6nAAACuFBMVEUAAAABAQEDAwMEBAQHBwcJ
> CQkKCgoMDAwNDQ0ODg4PDw8QEBARERESEhITExMUFBQVFRUWFhYXFxcYGBgZGRkaGhobGxscHBwf
> Hx8gICAhISEiIiIjIyMkJCQlJSUmJiYnJycoKCgqKiorKyssLCwtLS0uLi4vLy8wMDAxMTEyMjI0
> NDQ4ODg5OTk6Ojo7Ozs8PDw9PT0+Pj4/Pz9AQEBBQUFCQkJDQ0NERERFRUVGRkZHR0dISEhJSUlK
> SkpLS0tMTExNTU1OTk5PT09QUFBRUVFSUlJTU1NUVFRVVVVXV1dYWFhZWVlaWlpbW1tcXFxdXV1e
>
> <remainder truncated>
>
> Here the "results" block is not exposed as raw html in the exported
> file. Can anyone suggest how I might do this? I'm using emacs 23.4.1,
> org-mode 7.8.03
>
Hi Noah,
To include raw html in an Org-mode file you can use either the single
line #+HTML: escape or wrap it in a being/end html block, so adjusting
your example above would yield
#+BEGIN_SRC python :results output raw :exports results
with open('plot.png', 'rb') as image:
data = image.read()
print '#+HTML: <img src="data:image/png;base64,%s">' % data.encode("base64")
#+END_SRC
or
#+BEGIN_SRC python :results output html :exports results
with open('plot.png', 'rb') as image:
data = image.read()
print '<img src="data:image/png;base64,%s">' % data.encode("base64")
#+END_SRC
Best,
>
> Thanks a lot,
> Noah
>
--
Eric Schulte
http://cs.unm.edu/~eschulte/
^ permalink raw reply [flat|nested] 3+ messages in thread
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2012-04-23 17:33 embed base64 encoded images in exported html Noah Hoffman
2012-04-23 16:35 ` Eric Schulte
2012-04-23 18:48 ` Noah Hoffman
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