The cool thing about the slashes though is that they imply an over/under relationship between characters in a horizontal row. Is ^1+2+3 a tree or a nest? One would need to memorize whether the digits show the pyramids top-down or bottom-up. ^1/2/3 is obviously, "1 over 2 over 3," or a tree. I could see that same relationship with a comma, which has the same diagonal orientation as a slash, but the slash makes it blatantly obvious (as opposed to merely obvious). I vote for the slash. Ryan -------------- Original message ---------------------- From: Mark Lentczner <markl@xxxxxxxxxxx> > > On May 3, 2006, at 8:14 AM, Eric Wald wrote: > > Initial Tree: ^1/2/3 > > A Nest: ^3/2/1 > > pluses: ^1+2+3 ^3+2+1 > ... > So, I vote for the plus sign as separator between pieces in a stack. > > Now, should I submit this standard to the IETF, ISO, ANSI, ECMA, or > all four? I'm reserving the upcoming Treehouse+XML format for W3C > approval....