Re: file-truename: Variable binding depth exceeds max-specpdl-size when tangling

[Aaron Ecay <aaronecay@gmail.com>]

Hi Grant,

2014ko abuztuak 20an, Grant Rettke-ek idatzi zuen:
> 
> Good afternoon,
> 
> While debugging one of my babel documents, I re-read [this]
> documentation on `:noweb-ref'.
> 
> What I had wanted to do was to define a bunch of source blocks and then
> at the end of the heading to tangle them all into a file. This was just
> a natural thing to do while /in the flow/ and *not* thinking about the
> document structure.
> 
> Here is the simplest possible example.
> 
> ,----
> |
> | * Demo
> |   :PROPERTIES:
> |   :noweb-ref: demo
> |   :END:
> |
> | #+begin_src emacs-lisp
> | (message "demo")
> | #+end_src
> |
> | #+begin_src emacs-lisp
> | (message "this")
> | #+end_src
> |
> | #+begin_src sh :tangle ~/tmp/demo.el :noweb yes
> | «demo»
> | #+end_src
> `----

Because the to-be-tangled code block is also under the headline with the
:noweb-ref property, it will try to include itself inside itself,
leading to an infinite regress.  Adding a headline before the third code
block fixes the issue.

-- 
Aaron Ecay