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[REBOL] Re: The complete Rebol named argument passing

From: rotenca:telvia:it at: 1-Mar-2004 18:18

Hi Gabriele,
> arguments. To solve this you'd need to parenthesize all > expressions.
Yes. The do-alt function could have some limitations not present in the standard evaluation routine. But now I have another proposal, with less problems (I hope): a: "abcd" b: "c" case: true skip: true size: 2 do-alt find/case/skip a b size the interpreter fetch the path (find/case/skip) and checks every word in it: 'case if none/false => refinement /case is false else => refinement /case is true 'skip if none/false => refinement /skip is false (size argument will be ignored) else => refinement /skip is true => size argument required My doubt is about the size argument when the refinement is none: must be omitted or it will be ignored (not evalutaed but skipped)? In the latter case we can write: my-func: func [a b /case /skip size ][ do-alt find/case/skip a b size ] also if /skip is none, else we must manually check the skip value in my-func before calling find. I already have working mezzanine versions using a block, but i should like to have a do-alt native. --- Ciao Romano