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[O] "Variable binding depth exceeds max-specpdl-size" behavior induced b


From: Alexander Huang
Subject: [O] "Variable binding depth exceeds max-specpdl-size" behavior induced by footnotes [8.2.10 (release_8.2.10 @ /usr/local/share/emacs/24.5/lisp/org/)]
Date: Sun, 27 Dec 2015 17:50:37 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0

* description

using the example below, calling =org-html-export-as-html= leads to a =mapc: Variable binding depth exceeds max-specpdl-size= error.

#+BEGIN_SRC org :file example-file.org

# must be non-leading
x[fn:A]

# must be leading
[fn:A]

# must be non-leading
x[fn:B]

# must be non-leading, and non-"a" entry
x[fn:B]

#+END_SRC

This seems to be the smallest I can make this example. To reproduce this error, the minimal file needs these properties:

1. at least 2 distinct footnote references
2. 1 of those footnotes is referenced (not leading) least 2 times
3. the actual footnote (in leading position) in step 2 must be sandwiched between references to it in non-leading positions 4. the first reference (non-leading) to the next unique footnote must occur before its definition (leading).

Thus, the export completes if either:
- the leading =[fn:A]= definition appears before the first =x[fn:A]= or after the second =x[fn:A]= - =x[fn:B]= above is preceded by a leading =[fn:B]= (then the ordering of [fn:A] does not matter)

I have set =max-specpdl-size= and =max-lisp-eval-depth= to 20000+, though I believe this is unrelated.

This appears similar to

https://lists.gnu.org/archive/html/emacs-orgmode/2015-07/msg00079.html

But as far as I can tell it is different. I have not looked at the footnote code.


Emacs  : GNU Emacs 24.5.1 (x86_64-unknown-linux-gnu)
 of 2015-12-27 on localhost
Package: Org-mode version 8.2.10 (release_8.2.10 @ /usr/local/share/emacs/24.5/lisp/org/)

current state:
==============
(setq
org-tab-first-hook '(org-hide-block-toggle-maybe org-src-native-tab-command-maybe
              org-babel-hide-result-toggle-maybe
              org-babel-header-arg-expand)
 org-speed-command-hook '(org-speed-command-default-hook
              org-babel-speed-command-hook)
 org-occur-hook '(org-first-headline-recenter)
 org-metaup-hook '(org-babel-load-in-session-maybe)
 org-html-format-drawer-function '(lambda (name contents) contents)
 org-latex-format-inlinetask-function 'ignore
 org-confirm-shell-link-function 'yes-or-no-p
 org-ascii-format-inlinetask-function 'org-ascii-format-inlinetask-default
org-latex-format-headline-function 'org-latex-format-headline-default-function
 org-after-todo-state-change-hook '(org-clock-out-if-current)
 org-latex-format-drawer-function '(lambda (name contents) contents)
 org-src-mode-hook '(org-src-babel-configure-edit-buffer
             org-src-mode-configure-edit-buffer)
 org-agenda-before-write-hook '(org-agenda-add-entry-text)
 org-babel-pre-tangle-hook '(save-buffer)
 org-mode-hook '(#[nil "\300\301\302\303\304$\207"
           [org-add-hook change-major-mode-hook org-show-block-all append
            local]
           5]
         #[nil "\300\301\302\303\304$\207"
           [org-add-hook change-major-mode-hook org-babel-show-result-all
            append local]
           5]
         org-babel-result-hide-spec org-babel-hide-all-hashes)
 org-ascii-format-drawer-function '(lambda (name contents width) contents)
org-ctrl-c-ctrl-c-hook '(org-babel-hash-at-point org-babel-execute-safely-maybe)
 org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-hide-drawers
          org-cycle-hide-inline-tasks org-cycle-show-empty-lines
          org-optimize-window-after-visibility-change)
 org-confirm-elisp-link-function 'yes-or-no-p
 org-metadown-hook '(org-babel-pop-to-session-maybe)
 org-html-format-headline-function 'ignore
 org-html-format-inlinetask-function 'ignore
 org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
 )




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