Re: Line spacing (was Re: Some complaints about HTML 4.0)

Jim Wise (jimw@numenor.turner.com)
Thu, 17 Jul 1997 15:16:17 -0400 (EDT)


Date: Thu, 17 Jul 1997 15:16:17 -0400 (EDT)
Subject: Re: Line spacing (was Re: Some complaints about HTML 4.0)
In-Reply-To: <199707141906.MAA03049@italy.it.earthlink.net>
Message-ID: <Pine.GSO.3.96.970717151313.28350D-100000@numenor.turner.com>
To: David Perrell <davidp@earthlink.net>
From: Jim Wise <jimw@numenor.turner.com>
Cc: www-html@w3.org

On Mon, 14 Jul 1997, David Perrell wrote:

> Character glyphs are -- in effect -- simply inline images with a few
> additional metrics. (Ideally, like PNGs with transparent background and
> grayscale mask to accommodate antialiasing.)

No, they aren't.  The problem here is that character rendering is often
context dependent.  Spacing will differ based on the prior and next
characters, for example, and many environments will replace some
character pairs with ligatures.  And this is just for latin type.  Many
scripts, especially mideastern scripts, have much more in depth
context-sensitive rendering changes.  (Different rendering of a
character whether it appears at the end of a word or not, for example).

--
				Jim Wise
				jim.wise@turner.com