Re: [emacs-humanities] Form-feed as literary-style scene breaks

[Manuel Uberti]

On 14/01/21 09:40, Manuel Uberti wrote:
>>
>>     (aset standard-display-table ?\^L
>>           (vconcat (make-string 15 ?\s) (make-string 35 ?─)))
>>
> 
> 
> However, in Emacs 28 from emacs -Q evaluating that code results in:
> 
> Debugger entered--Lisp error: (wrong-type-argument arrayp nil)
>   aset(nil 12 [32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 9472 9472 9472 
> 9472
> 9472 9472 9472 9472 9472 9472 9472 9472 9472 9472 9472 9472 9472 9472 9472 
> 9472
> 9472 9472 9472 9472 9472 9472 9472 9472 9472 9472 9472 9472 9472 9472 9472])
>   (progn (aset standard-display-table 12 (vconcat (make-string 15 32)
> (make-string 35 9472))))
>   eval((progn (aset standard-display-table 12 (vconcat (make-string 15 32)
> (make-string 35 9472)))) t)
>   elisp--eval-last-sexp(nil)
>   eval-last-sexp(nil)
>   funcall-interactively(eval-last-sexp nil)
>   call-interactively(eval-last-sexp nil nil)
>   command-execute(eval-last-sexp)

A possible way to fix that is using Paul's snippet after loading elisp-mode.
Something like:

(with-eval-after-load 'elisp-mode
  (aset standard-display-table ?\^L
        (vconcat (make-string 15 ?\s) (make-string 35 ?─))))

-- 
Manuel Uberti
www.manueluberti.eu