Message-Id: <9210081628.AA12274@sc.zib-berlin.dbp.de>
Reply-To: Mailing list for the LaTeX3 project <LATEX-L@vm.urz.Uni-Heidelberg.de>
In-Reply-To:  vanroose@ESAT.KULEUVEN.AC.BE's message of Thu,
              8 Oct 92 10:26:39 CET <9210080927.AA01016@central>
Date:         Thu, 8 Oct 92 09:31:14 MDT
From: "Jonathan M. Gilligan" <gilligan@CENTRAL.BLDRDOC.GOV>
Sender: Mailing list for the LaTeX3 project <LATEX-L@vm.urz.Uni-Heidelberg.de>
To: Multiple recipients of <LATEX-L@vm.urz.Uni-Heidelberg.de>
Subject:      Change bars
Status: R


vanroose@ESAT.KULEUVEN.AC.BE (Peter Vanroose) writes:

   An other approach to ``mark changed parts of a text'' could be the
   following: just change to an other FONT (e.g. sans serif (roman...)
   instead of serif (roman...)), or maybe to an other SIZE (e.g.
   double heigth characters, i.e.  condensed & enlarged).

This would create mayhem with mathematical formulae, where font
conveys meaning. In maths formulae, boldface, sans-serif, italic, and
roman fonts often signify the kind of mathematical object to which a
symbol refers (boldface = vector, italic = scalar, sans = tensor,
roman for functions such as sin and log).

Also, changes should be marked clearly but unobtrusively. A reader
should be able to read through the revised text without encountering
jarring font changes that would interfere with the reader's ability to
judge the flow of the prose.

---Jon