Re: Any objection to adding a unicode footnote style? (encoding fixed)

[Leo]

On 2011-05-09 15:06 +0800, Eli Zaretskii wrote:
> Thanks, now I can read it.
>
> I don't really mind (as I don't use footnote-mode), but this will look
> quite ugly if the default font doesn't have the Unicode superscript
> characters.  In that case, Emacs will use a different font to draw
> just the Unicode characters, which will result in 1, 2, and 3 drawn a
> bit lower than the other digits, or wider, or both.  Depending on the
> default font, it could also be that 0, 4, 5, 6, 7, 8, and 9 will be
> drawn taller than the others.
>
> Are we willing to bet that the default font is a Unicode font for most
> users?  If not, perhaps at least some caveat in the doc string is in
> order.

How about adding something like this to the doc-string:

diff --git a/lisp/mail/footnote.el b/lisp/mail/footnote.el
index dc967ec8..1a60a333 100644
--- a/lisp/mail/footnote.el
+++ b/lisp/mail/footnote.el
@@ -337,6 +337,10 @@ (defcustom footnote-style 'numeric
 unicode == ¹, ², ³, ...
 See also variables `footnote-start-tag' and `footnote-end-tag'.
 
+NB: some characters in the latin and unicode style may not be
+shown properly if the default font does not contain those
+characters.
+
 Customizing this variable has no effect on buffers already
 displaying footnotes.  To change the style of footnotes in such a
 buffer use the command `Footnote-set-style'."

Leo