Babel src block inside src block

Question

I'm trying to post a babel src block that contains a babel definition since I am documenting some babel source blocks in a Hugo post written in org mode.

What I want to do is the following:

#+BEGIN_SRC #+BEGIN_SRC dot :file my_output_file.png :cmdline -Kdot -Tpng digraph G { my_start -> one_branch; my_start -> another_branch; } #+END_SRC #+END_SRC

And the output I'd like to achieve when exporting is:

#+BEGIN_SRC dot :file my_output_file.png :cmdline -Kdot -Tpng digraph G { my_start -> one_branch; my_start -> another_branch; } #+END_SRC

BUt what I get instead is

#+BEGIN_SRC dot :file my_output_file.png :cmdline -Kdot -Tpng digraph G { my_start -> one_branch; my_start -> another_branch; }

Since the first #+END_SRC finishes the code block.

Is there any way to escape the #+END_SRC so I can have my src block as I expect?

Thanks a lot!

You escape the inside #+BEGIN and #+END by prefixing them with a ,. You can find many such examples here in my ox-hugo test file.. just search for ,#. — Kaushal Modi
– Kaushal Modi, Commented Jan 27, 2018 at 17:43

Juancho · Accepted Answer · 2017-09-13 19:22:01Z

In general, you can include any orgmode inside a literal example (SRC or EXAMPLE blocks, or even headings).

You may need to escape headings and block delimiters with a comma. This escaping is done automatically if you edit your block in a separate buffer via C-c '.

Documentation here.

Example of block with escaped heading and source block:

* Test #+begin_src org ,* this is a heading The following is a source code example ,#+begin_src emacs-lisp (+ 1 2 3 4) ,#+end_src ,#+RESULTS: : 10 #+end_src

NickD · Accepted Answer · 2017-09-13 15:01:35Z

Do you need the outer block to be a SRC block? The standard way I think of doing what you want is like this:

#+BEGIN_EXAMPLE #+BEGIN_SRC dot ... ... #+END_SRC #+END_EXAMPLE

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