I would prefer that SRFI-29 extend SRFI-28 for an ordering requirement (which, btw, is quite important. I regret overlooking it). Why, though, is the escape code format so complicated? Surely something simpler could be imagined, ~r<n> for example, which when immediately preceding a value-requiring escape code requests that it retrieve the <n>'th argument. The 'r' is of course debatable. Scott
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