On Mon, Jan 7, 2013 at 8:48 AM, Erik Dahlstrom <ed@opera.com> wrote: > Hi all, > > I have a question about the component value syntax, more specifically the > double bars, ||, that can separate values in CSS syntax, used e.g in the > background property[1]. The CSS3 values and units spec[2] states that: > > [[ A double bar (||) separates two or more options: one or more of them must > occur, in any order. ]] > > What is the expected result is when an option is repeated? I don't see a > clear answer in the spec. (The same spec text is also duplicated in CSS3 > Syntax [3]). > > My interpretation is that options cannot be repeated, but the spec text "one > or more of them must occur" makes it seem as though e.g "paint-order: fill > fill" is allowed (from SVG2 'paint-order' property [4] which also uses the > || syntax). > > How about adding something to clarify that options can only occur once in > the given set? E.g: > > [[ A double bar (||) separates two or more options: one or more of them must > occur, in any order. Each option can occur at most one time. ]] Huh, I didn't think this was ambiguous. We can do a correction in the CR, as it's editorial, if necessary. ~TJReceived on Monday, 7 January 2013 18:34:01 UTC
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