This is somewhat similar to the template engine that Syndication uses. Mine’s more powerful in some ways (it can do limited conditionals and looping) but your use of KV coding is more elegant; something I wish I’d thought of back then.

I’ve got a new template engine in the stuff I’m experimenting with now … at the moment it uses an embedded Lua interpreter plus the open-source ObjC/Lua bridge. I’ll probably replace it with something less outré before shipping; partly I was just looking for some excuse to use Lua =)

I’m going to be using it in my invoicing program– I generate invoices via HTML templates, y’see– and I just wanted to say thanks.