<div class="gmail_quote">On Tue, Mar 17, 2009 at 1:53 AM, Kathryn Andersen <span dir="ltr"><<a href="mailto:kat_lists@katspace.homelinux.org">kat_lists@katspace.homelinux.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
... Also I would have expected "+" to be use for union rather than<br>
intersection, since with union you are "adding" two sets together.<br>
How about using '+' for union and '^' for intersection?<br>
</blockquote><div><br>Yes, you're right, '+' is a bad choice there. I think I might go back to what is more pmwiki-ish and keep just the comma for the union (name=a,b,c) and just the space for intersection (:pagelist term1 term2:). My thinking on the '+' was coming from the syntax some search engines use which marks required search terms with a +, but I think in this case it would cause more confusion than help...<br>
<br>So in my experiment I'm going back to just a single operator for each function (comma=or, -=and not, space=and).<br><br>-Peter<br></div></div>