Re: line drawing characters

[Greg Hill]

At 11:30 PM +0100 10/31/04, Jesper Harder wrote:
> `M-x list-charset-chars RET mule-unicode-2500-33ff' will show you a
> table of the chars.  You can insert them with `M-x ucs-insert'.
>
> If you see empty boxes, that means that you need to instruct Emacs to
> use a font with coverage of the this Unicode range.

list-charset-chars for mule-unicode-2500-33ff gives me all empty 
boxes.  I am beginning to suspect that the problem is not so much 
with Emacs as it is with my X windows server (eXodus running on a MAC 
under OS-9), which must not have a matching font to use for painting 
the display.  I will be working with our IT department this week to 
(finally!) get my MAC upgraded to OS-10, in hopes that that will take 
care of the problem.

Incidentally, the following bit of code tells me that character codes 
in the range of 294912 (0x48000) to 311295 (0x4bfff) correspond to 
the mule-unicode-2500-33ff character set.

(let ((ic 0) first last)
  (while (< ic 500000)
    (if (eq (char-charset ic) 'mule-unicode-2500-33ff)
        (setq first ic ic 500000)      
      (setq ic (1+ ic))))
  (setq ic first)      
  (while (< ic 500000)
    (if (eq (char-charset ic) 'mule-unicode-2500-33ff)
        (setq last ic))
    (setq ic (1+ ic)))
  (cons first last))

But list-charset-chars for mule-unicode-2500-33ff shows characters 
(which are displayed as empty boxes) from 0x2020 to 0x7F7F.   Is 
there some function I haven't found yet that clarifies the 
correspondence?

Thanks again for all the help.

--Greg