Re: Fill column indicator functionality

[Óscar Fuentes]

Ergus <address@hidden> writes:

> On Fri, Apr 05, 2019 at 10:05:53PM +0300, Eli Zaretskii wrote:
>>> Date: Fri, 5 Apr 2019 19:30:10 +0200
>>> From: Ergus <address@hidden>
>>> Cc: address@hidden
>>>
>>> If I set a different value to display-fill-column-indicator with
>>> customize-variable and save; the display should be updated to use the
>>> new value right? (display the indicator or hide it)
>>>
>>> I have never used customize-variable, so maybe that's not the expected
>>> behavior.
>>
>>After changing the value, you need to click "STATE" and select "Set
>>for current session".  Did you do that?
>>
>
> Yes, I did, and there is not change.

I have a patch from some days ago applied here, sorry if this is
outdated, but I see something suspicious. After M-x customize-variable
display-fill-column-indicator-character :


Hide display-fill-column-indicator-character: nil
    State : STANDARD. (mismatch)
   Character to draw the indicator when ‘display-fill-column-indicator’ is non-n


That "nil" and "mismatch" are not right. This is the definition of the
variable in xdisp.c:


  DEFVAR_LISP ("display-fill-column-indicator-character", 
Vdisplay_fill_column_indicator_character,
    doc: /* Character to draw the indicator when 
`display-fill-column-indicator' is non-nil.
The default is U+2502 but a good alternative is (ascii 124) if
the font in fill-column-face does not support Unicode characters.  */);
  Vdisplay_fill_column_indicator_character = Qnil;
  DEFSYM (Qdisplay_fill_column_indicator_character, 
"display-fill-column-indicator-character");
  Fmake_variable_buffer_local (Qdisplay_fill_column_indicator_character);


I know next to nothing about those macros, but look suspicious.