temp = thisComp.layer("TEXT").text.sourceText;
s = temp.length;
x = 100 * (s * .175);
[x, value[1]]I have goofy HACK that might need some tweaking.
Either call your text layer "TEXT" or change the name in the expression. And apply the expression to the Scale of your solid.
I tested it a few times and it seemed to work okay. You'll probably have to adjust the number you multiply "s" by to go with your particular font and tracking.
(Dan, can you make this more elegant?)
Trent
Trent Armstrong - Creative Cow Leader
http://www.dallasaeug.com