From: Michael Everson (everson@evertype.com)
Date: Tue Jan 26 2010 - 15:13:41 CST
On 26 Jan 2010, at 20:31, Jukka K. Korpela wrote:
> Michael Everson wrote:
>
>> Normally one just uses two or three —— and ——— and kerns if there is
>> any incidental space between them.
>
> By “kerning,” you mean manual tuning of spacing between characters,
> not the automatic kerning that rendering software may perform when a
> font contains kerning information for character pairs.
Yes, that's what I do when I typeset.
> Well, I don’t do kerning on your message, where I clearly see dashes
> separated by a small amount of empty space. Actually, most people
> have no idea of kerning, automatic or manual.
So do I, because Everson Mono has a bit of space.
> Maybe the lack of 2-em and 3-em dashes as characters in Unicode is
> based on the assumption that successive em dashes are joining,
> either because they have been so designed by the font designer (i.e.
> the advance width is exactly the same as the dash width), or because
> automatic kerning is specified and used. But these assumptions often
> fail.
I have no objection to adding a two-em dash and a three-em dash to the
UCS.
Michael Everson * http://www.evertype.com/
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