bug#18617: 24.3; loading simple-wiki-mode breaks org-mode

bug#18617: 24.3; loading simple-wiki-mode breaks org-mode

[vmon]

This bug report will be sent to the Bug-GNU-Emacs mailing list
and the GNU bug tracker at debbugs.gnu.org.  Please check that
the From: line contains a valid email address.  After a delay of up
to one day, you should receive an acknowledgment at that address.

Please write in English if possible, as the Emacs maintainers
usually do not have translators for other languages.

Please describe exactly what actions triggered the bug, and
the precise symptoms of the bug.  If you can, give a recipe
starting from `emacs -Q':

To re-trigger:
- Install simple-wiki-mode
- run emacs
- switch to *scratch*
- load org-mode
- make two todos one with subtree:
* TODO test 1
  - test 2
* TODO test 3
- check pressing tab on First todo hide and show the subtree
- open a new file: test.txt
- M-x simple-wiki-mode (on test.txt)
- switch back to *scratch* (which is still in org-mode)
- Observe that subtree function is broken.
- Press tab on TODO test 1 will hide * TODO test 3 and never shows it
again.

Thanks,
humble emacs user

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
For information about debugging Emacs, please read the file
/usr/share/emacs/24.3/etc/DEBUG.


In GNU Emacs 24.3.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.12.2)
 of 2014-06-11 on var-lib-archbuild-staging-x86_64-jgc
Windowing system distributor `The X.Org Foundation', version 11.0.11600000
System Description:	Arch Linux

Configured using:
 `configure '--prefix=/usr' '--sysconfdir=/etc' '--libexecdir=/usr/lib'
 '--localstatedir=/var' '--with-x-toolkit=gtk3' '--with-xft'
 'CFLAGS=-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong
 --param=ssp-buffer-size=4'
 'LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro'
 'CPPFLAGS=-D_FORTIFY_SOURCE=2''

Important settings:
  value of $LANG: de_DE.UTF-8
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Org

Minor modes in effect:
  erc-services-mode: t
  erc-networks-mode: t
  shell-dirtrack-mode: t
  recentf-mode: t
  global-auto-complete-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<f9> <f9> <f9> C-x C-f t e s t . <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
C-g M-x o r g - m o d e <return> * SPC T O D O S-SPC 
t e s t 1 <return> <tab> - SPC t e s t SPC 2 <return> 
* S-SPC T O D O S-SPC t e s t SPC 3 <tab> C-p C-p C-p 
C-a C-n <tab> <tab> <tab> <tab> <tab> C-n C-n C-p C-p 
C-x C-s C-g C-n C-n C-x o C-x C-f t e s t . t x t <return> 
M-x s i m p l e - w i k i - m o d e <return> <f9> <f9> 
C-p C-p <tab> <tab> <tab> <tab> <tab> C-x b C-g M-x 
r e p o r t - e m a c s <tab> <return>

Recent messages:
FOLDED
CHILDREN
SUBTREE
FOLDED
CHILDREN
Quit
(New file)
FOLDED [5 times]
Quit
user-error: Beginning of history; no preceding item [2 times]

Load-path shadows:
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/home/vmon/.emacs.d/elpa/org-20140915/ox-html hides ~/.emacs.d/ox-html
~/.emacs.d/go-mode hides /usr/share/emacs/site-lisp/go-mode
~/.emacs.d/go-mode-load hides /usr/share/emacs/site-lisp/go-mode-load
~/.emacs.d/w3m/w3m-ucs hides /usr/share/emacs/site-lisp/w3m/w3m-ucs
~/.emacs.d/w3m/w3m-symbol hides /usr/share/emacs/site-lisp/w3m/w3m-symbol
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/home/vmon/.emacs.d/elpa/org-20140915/org-entities hides /usr/share/emacs/24.3/lisp/org/org-entities
/home/vmon/.emacs.d/elpa/org-20140915/org-colview hides /usr/share/emacs/24.3/lisp/org/org-colview
/home/vmon/.emacs.d/elpa/org-20140915/org-capture hides /usr/share/emacs/24.3/lisp/org/org-capture
/home/vmon/.emacs.d/elpa/org-20140915/org-timer hides /usr/share/emacs/24.3/lisp/org/org-timer
/home/vmon/.emacs.d/elpa/org-20140915/ob-sqlite hides /usr/share/emacs/24.3/lisp/org/ob-sqlite
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/home/vmon/.emacs.d/elpa/org-20140915/ob-lob hides /usr/share/emacs/24.3/lisp/org/ob-lob
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/home/vmon/.emacs.d/elpa/org-20140915/org-inlinetask hides /usr/share/emacs/24.3/lisp/org/org-inlinetask
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/home/vmon/.emacs.d/elpa/org-20140915/ob-lilypond hides /usr/share/emacs/24.3/lisp/org/ob-lilypond
/home/vmon/.emacs.d/elpa/org-20140915/ob-sql hides /usr/share/emacs/24.3/lisp/org/ob-sql
/home/vmon/.emacs.d/elpa/org-20140915/org-faces hides /usr/share/emacs/24.3/lisp/org/org-faces
/home/vmon/.emacs.d/elpa/org-20140915/org-archive hides /usr/share/emacs/24.3/lisp/org/org-archive
/home/vmon/.emacs.d/elpa/org-20140915/org-plot hides /usr/share/emacs/24.3/lisp/org/org-plot
/home/vmon/.emacs.d/elpa/org-20140915/ob-comint hides /usr/share/emacs/24.3/lisp/org/ob-comint
/home/vmon/.emacs.d/elpa/org-20140915/ob-ocaml hides /usr/share/emacs/24.3/lisp/org/ob-ocaml
/home/vmon/.emacs.d/elpa/org-20140915/org-eshell hides /usr/share/emacs/24.3/lisp/org/org-eshell
/home/vmon/.emacs.d/elpa/org-20140915/ob-sh hides /usr/share/emacs/24.3/lisp/org/ob-sh
/home/vmon/.emacs.d/elpa/org-20140915/org-macs hides /usr/share/emacs/24.3/lisp/org/org-macs
/home/vmon/.emacs.d/elpa/org-20140915/org-mhe hides /usr/share/emacs/24.3/lisp/org/org-mhe
/home/vmon/.emacs.d/elpa/org-20140915/org-pcomplete hides /usr/share/emacs/24.3/lisp/org/org-pcomplete
/home/vmon/.emacs.d/elpa/org-20140915/ob-eval hides /usr/share/emacs/24.3/lisp/org/ob-eval
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Features:
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edmacro kmacro cl-macs gv color-theme easymenu wid-edit cl cl-lib server
saveplace time-date tooltip ediff-hook vc-hooks lisp-float-type mwheel
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bug#18617: 24.3; loading simple-wiki-mode breaks org-mode

[Marcin Borkowski]

On 2014-10-02, at 20:27, vmon@riseup.net wrote:

> To re-trigger:
> - Install simple-wiki-mode
> - run emacs
> - switch to *scratch*
> - load org-mode
> - make two todos one with subtree:
> * TODO test 1
>   - test 2
> * TODO test 3
> - check pressing tab on First todo hide and show the subtree
> - open a new file: test.txt
> - M-x simple-wiki-mode (on test.txt)
> - switch back to *scratch* (which is still in org-mode)
> - Observe that subtree function is broken.
> - Press tab on TODO test 1 will hide * TODO test 3 and never shows it
> again.

Hello,

I know it was quite a long time ago, but could you confirm that this is
still an issue in current Emacs?  Also, I tried to reproduce it on GNU
Emacs 25.1.50.3, but could not - M-x simple-wiki-mode (after downloading
simple-wiki.el from savannah) resulted in a "setq: Symbol’s function
definition is void: first" error.  (simple-wiki is not an Elpa package,
so I could not install it via the package manager.)

If the problem is still present, please describe exactly how you
installed simple-wiki-mode so that I could see for myself what's
happening.

> Thanks,
> humble emacs user

Best,

-- 
Marcin Borkowski

bug#18617: [O] bug#18617: 24.3; loading simple-wiki-mode breaks org-mode

[Kaushal Modi]

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I can recreate that bug.

The "first" alias is defined in the cl library. So you would need to
(require 'cl) before requiring simple-wiki.

I eval'd simple-wiki from here:
http://cvs.savannah.gnu.org/viewvc/*checkout*/http-emacs/http-emacs/simple-wiki.el

I haven't yet looked into the internals of simple-wiki.el to investigate
what's breaking the visibility cycling.
Basically TAB or S-TAB stop cycling the visibility; they seem to do nothing.

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bug#18617: [O] bug#18617: 24.3; loading simple-wiki-mode breaks org-mode

[Kaushal Modi]

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A quick look at the code shows that it pollutes the namespace with
undeclared and un-let-bound variables like "tag" (and there could be more
like that).

If we investigate further, we might find a culprit like that that's causing
this problem.

(defun simple-wiki-get-tag ()
  (let (prompt)
    (if (and simple-wiki-tag-history (car simple-wiki-tag-history))
        (setq prompt (concat "Tag (" (car simple-wiki-tag-history) "): "))
      (setq prompt "Tag: "))
    (setq tag (completing-read prompt simple-wiki-tag-list nil nil ""
                               'simple-wiki-tag-history
                               (car simple-wiki-tag-history))))
  (unless (assoc tag simple-wiki-tag-list)
    (add-to-list 'simple-wiki-tag-list (cons tag nil)))
  tag)

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bug#18617: [O] bug#18617: 24.3; loading simple-wiki-mode breaks org-mode

[Noam Postavsky]

# not an Emacs bug
tags 18617 notabug
close 18617
quit

Kaushal Modi <kaushal.modi@gmail.com> writes:

> A quick look at the code shows that it pollutes the namespace with
> undeclared and un-let-bound variables like "tag" (and there could be
> more like that).
>
> If we investigate further, we might find a culprit like that that's
> causing this problem.

Looks like this is a bug in simple-wiki-mode, not in Emacs.