Re: 'mm' scaling value on top-level

[Aaron Hill]

On 2021-09-28 9:21 am, Werner LEMBERG wrote:
> OK, thanks for the pointer.  But I wonder what exactly the problem is:
> The paper size strings passed to `set-default-paper-size` *do* contain
> the 'mm' variable, see `paper-alist`.  Is the expansion of 'mm'
> delayed?  Isn't there a possibility to do the same on the top level?

You could probably pass the values in a similar quoted style that then 
gets eval'ed within the paper context where the measurements are 
defined:

%%%%
#(set-default-paper-size '(cons (* 55 mm) (* 89 mm)))
%%%%

Here's a hack that patches the original function to automate setting 
paper-alist:

%%%%
\version "2.22.0"

#(let ((orig set-default-paper-size))
  (define (proc arg . rest)
   (if (string? arg)
    (apply orig arg rest)
    (begin
     (set! paper-alist (cons (cons "custom-inline" arg) paper-alist))
     (apply orig "custom-inline" rest))))
  (set! set-default-paper-size proc))

#(set-default-paper-size '(cons (* 50 mm) (* 100 mm)) 'landscape)

{ b'4 }
%%%%


-- Aaron Hill