* 2020-11-14 23:27:41+02, Teemu Likonen wrote:
> * 2020-11-14 23:18:16+02, Teemu Likonen wrote:
>> Variable bibtex-contline-indentation does not work as file local
>> variable. The reason is that bibtex-mode command initializes variable
>> fill-prefix before the possible file local variable is available. It
>> gets always the global value of bibtex-contline-indentation.
>>
>> This can be fixed by locally let-binding fill-prefix every time in the
>> relevant filling function. Patch for that is attached.
>
> See: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=44647

I'll add one example. Currently if we want to use file or directory
local variable to define bibtex indentation we must do use variable
bibtex-text-indentation for normal field value indentation and then use
fill-prefix with spaces to define the indentation for continuation
lines:

    ;; .dir-locals.el
    ((bibtex-mode . ((bibtex-text-indentation . 20)
                     (fill-prefix . "                     ")))) ; 21 spaces

Quite obviously more user-friendly way would be this:

    ;; .dir-locals.el
    ((bibtex-mode . ((bibtex-text-indentation . 20)
                     (bibtex-contline-indentation . 21))))

My patch does this. It let-binds fill-prefix every time and initializes
its value by using the (possibly buffer local) value of
bibtex-contline-indentation.

Here is inline version of the patch so that it is easier to read in
debbugs.gnu.org page.