Re: [BUG] phantom newlines while moving headings [9.6-pre ( @ /home/chomwitt/.config/emacs/elpa/org-9.6pre0.20221110.85807/)]

[Alexandros Prekates]

On Fri, 11 Nov 2022 02:28:27 +
Ihor Radchenko  wrote:

Indeed testing the latest version my previous example didnt create
ghost newlines . But with a small diffefence that example that i
post below creates a ghost newline.

> chomw...@posteo.eu writes:
> 
> > It follows a possible org chunk that reproduce the phantom newlines
> > that are created while trying to move a headline from a state where
> > there are no newlines between the headers.  
> 
> Could you please provide more information?
> Which headline should I move to reproduce the problem?
> 
> I tried to move headlines randomly in the attached file (your example)
> but I do not see any newlines created.
> 



Creaete 1st level headlines ---

* a$
* b$
* c$
* d$
@

Move point after headline c --


* a$
* b$
* c@$
* d$


Press enter -

* a$
* b$
* c$
@$
* d$


Creating subheading -

* a$
* b$
* c$
** c1@$
* d$

Press enter -

* a$
* b$
* c$
** c1$
@$
* d$


Fold c heading -


* a$
* b$
* @c...$
* d$

move c heading all the way down  -


* a$
* b$
* d$
* @c...$ 
  < a yellow rectancle appears!

move c heading up -


* a$
* b$
* @c...$
  <--- ghost newline
* d$


move c heading again up -


* a$
* @c...$
 
* b$
* d$

Re: [BUG] phantom newlines while moving headings [9.6-pre ( @ /home/chomwitt/.config/emacs/elpa/org-9.6pre0.20221110.85807/)]

[Ihor Radchenko]

Alexandros Prekates  writes:

> On Fri, 11 Nov 2022 02:28:27 +
> Ihor Radchenko  wrote:
>
> I found a more minimal issue-reproducer
> (i add $ because i used M-x whitespace mode . 
> Also @ is point) ;

Thanks!
Unfortunately, I am unable to reproduce.

I started from the latest main branch of Org
(https://git.savannah.gnu.org/cgit/emacs/org-mode.git/) running
  make repro

Then, opening a new org file and following the steps.

> Move point after headline d --
>
>
> * a$
> * b$
> * c@$
> * d$

Note that I moved point _before_ headline d as indicated by @, not like
you described in words.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at .
Support Org development at ,
or support my work at 

Re: [BUG] phantom newlines while moving headings [9.6-pre ( @ /home/chomwitt/.config/emacs/elpa/org-9.6pre0.20221110.85807/)]

[Alexandros Prekates]

On Fri, 11 Nov 2022 02:28:27 +
Ihor Radchenko  wrote:

I found a more minimal issue-reproducer
(i add $ because i used M-x whitespace mode . 
Also @ is point) ;

Creaete 1st level headlines ---

* a$
* b$
* c$
* d$
@

Move point after headline d --


* a$
* b$
* c@$
* d$


Press enter -

* a$
* b$
* c$
@$
* d$


Creating subheading -

* a$
* b$
* c$
** c1@$
* d$

Press enter -

* a$
* b$
* c$
** c1$
@$
* d$


Fold c heading -

* a$
* b$
* @c...$
* d$


move c heading up  -

* a$
* @c...$
$   < a phantom(?) 'newline'
* b$   
* d$



> chomw...@posteo.eu writes:
> 
> > It follows a possible org chunk that reproduce the phantom newlines
> > that are created while trying to move a headline from a state where
> > there are no newlines between the headers.  
> 
> Could you please provide more information?
> Which headline should I move to reproduce the problem?
> 
> I tried to move headlines randomly in the attached file (your example)
> but I do not see any newlines created.
> 

Re: [BUG] phantom newlines while moving headings [9.6-pre ( @ /home/chomwitt/.config/emacs/elpa/org-9.6pre0.20221110.85807/)]

[Ihor Radchenko]

chomw...@posteo.eu writes:

> It follows a possible org chunk that reproduce the phantom newlines that
> are created while trying to move a headline from a state where there
> are no newlines between the headers.

Could you please provide more information?
Which headline should I move to reproduce the problem?

I tried to move headlines randomly in the attached file (your example)
but I do not see any newlines created.



bug2.org
Description: Lotus Organizer

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at .
Support Org development at ,
or support my work at 

[BUG] phantom newlines while moving headings [9.6-pre ( @ /home/chomwitt/.config/emacs/elpa/org-9.6pre0.20221110.85807/)]

[chomwitt]

Remember to cover the basics, that is, what you expected to happen and
what in fact did happen.  You don't know how to make a good report?  See

 https://orgmode.org/manual/Feedback.html#Feedback

Your bug report will be posted to the Org mailing list.



It follows a possible org chunk that reproduce the phantom newlines that
are created while trying to move a headline from a state where there
are no newlines between the headers.
 



* Linux system programming
  
** What is a product  Standard  ?
  :posix:sus: <> 


*** Unix characteristics

 Portability

One 





*** Standard Makefile Targets

** Headers

How to find the include paths used by the gcc compiler ?

...

** Keyboard 

 A scancode is the lowest identification number for a key, 
   
evtest - Input device event monitor and query tool

*** Extra keyboard keys

Many
** Time
*** Check current time-date-timezone

n
** References/Example_code


*** TLPI book's code (The Linux Programming Interface)


 DONE TOsDO Socket stream example
 CLOSED: [2017-01-11 Τετ 06:29]

Sockets

$ gcc -g -o us_xfr_cl us_xfr_cl.c  -L../lib -I../lib/
../lib/error_functions.o $ gcc -g -o us_xfr_sv  us_xfr_sv.c  -L../lib
-I../lib/ ../lib/error_functions.o


http://man7.org/tlpi/

** Utilities

*** strace 

strace traces and logs  all system calls issued by a program along with
their return codes. In this way, you can watch how a program interacts
with the system, which is useful for tracking down behavioural issues.
ss

strace -c foo_obj   // generate stats of syscalls

*** pmap 

$ foo &
[pid]
$ pmap pid



*** objdump

objdump is a program for displaying various information about object
files. For instance, it can be used as a disassembler to view an
executable in assembly form. It is part of the GNU Binutils for
fine-grained control over executables and other binary data.

$ objdump -f foo_obj   // see information related to the overall file
header , like file format

$ objdump -h foo_ob// Dumping the section headers from the ELF
executable // If the ELF executable contains debug symbols will contain 
   // section  with names beginning with .debug_ -
these are // ldthe DWARF debugging sections

26 .debug_aranges 0020      1037
 CONTENTS, READONLY, DEBUGGING
27 .debug_pubnames 0028      1057
 CONTENTS, READONLY, DEBUGGING
28 .debug_info   00cc      107f
 CONTENTS, READONLY, DEBUGGING
29 .debug_abbrev 008a      114b
 CONTENTS, READONLY, DEBUGGING
30 .debug_line   006b      11d5
 CONTENTS, READONLY, DEBUGGING
31 .debug_frame  0044      1240
 CONTENTS, READONLY, DEBUGGING
32 .debug_str00ae      1284
 CONTENTS, READONLY, DEBUGGING
33 .debug_loc0058      1332
 CONTENTS, READONLY, DEBUGGING

The first number seen for each section here is its size, and the last
is the offset where it begins in the ELF file. The debugger uses this
information to read the section from the executable


$ objdump --dwarf=info foo_obj   // display the DWARF debug_info section
//This is why DWARF encodes a full mapping between lines in the C
source code //and machine code addresses in the executable. This
information is contained in //the .debug_line section and can be
extracted in a readable form as follows:


$ objdump --dwarf=decodedline  foo_obj   // display 

http://eli.thegreenplace.net/2011/02/07/how-debuggers-work-part-3-debugging-information/


Emacs  : GNU Emacs 27.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version
3.24.24, cairo version 1.16.0) of 2021-03-28, modified by Debian
Package: Org mode version 9.6-pre ( @
/home/chomwitt/.config/emacs/elpa/org-9.6pre0.20221110.85807/)

current state:
==
(setq
 org-src-mode-hook '(org-src-babel-configure-edit-buffer
org-src-mode-configure-edit-buffer) org-link-shell-confirm-function
'yes-or-no-p org-metadown-hook '(org-babel-pop-to-session-maybe)
 org-persist-before-write-hook
'(org-element--cache-persist-before-write) org-mode-hook '(#[0
"\300\301\302\303\304$\207" [add-hook change-major-mode-hook
org-fold-show-all append local] 5] #[0 "\300\301\302\303\304$\207"
   [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-archive-hook
'(org-attach-archive-delete-maybe) org-persist-before-read-hook
'(org-element--cache-persist-before-read)
org-confirm-elisp-link-function 'yes-or-no-p
org-startup-with-inline-images t org-agenda-before-write-hook
'(org-agenda-add-entry-text) org-metaup-hook
'(org-babel-load-in-session-maybe) org-persist-after-read-hook
'(org-element--cache-persist-after-read)
org-bibtex-headline-fo