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For named parameters to be visually different from other parameters, I think (buy 'apple 'day 'low '(price 71.89) '(qty 1000))
Only works for constant parameters. Otherwise, you'd have to write: (buy 'apple 'day 'low `(price ,my-price) `(qty ,my-qty)) which I think is rather ugly
or (buy 'apple 'day 'low ##price## 71.89 ##qty## 1000) would be better.
I earlier suggested: (buy 'apple 'day 'low price=>my-price qty=>1000) I.e. NAME=>EXPRESSION It's compact, relatively "obvious" what it means, and visually tries the name and the value together. The syntax is orthogonal to the question of whether keywords are a separate data type, or whether instead we use some kind of "association" data type. -- --Per Bothner email@example.com http://per.bothner.com/