At Wed, 18 Jul 2007 18:16:43 -0700, "John D. Mitchell" <[EMAIL PROTECTED]> wrote: > FWIW to the intuition, rather than thinking whether or not it's > "hierarchical" it might be worth thinking of it in terms of being > "ordered" (as in order specific). In that case, the ordering of the > pair is critical.
You beat me to it! Just to add, the RWS book suggests using commas for ordered pairs in the URI design section, which makes sense to me. | Use punctuation characters to separate multiple pieces of data at | the same level of a hierarchy. Use commas when the order of the | items matters, as it does in latitude and longitude: | /Earth/37.0,-95.2. Use semicolons when the order doesn’t matter: | /color-blends/red;blue. best, Erik Hetzner ;; Erik Hetzner, California Digital Library ;; gnupg key id: 1024D/01DB07E3
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