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[REBOL] Re: From word to none

From: g:santilli:tiscalinet:it at: 19-Jun-2003 10:01

Hi Hallvard, On Wednesday, June 18, 2003, 10:03:15 PM, you wrote: HY> make hash! ["some string" none none "some string" 55 438 {"29621"} ] If you're on a recent version of REBOL, you can write it as: #[hash! ["some string" #[none] #[none] "some string" 55 438 {"29621"}]] that will directly load into the correct values (without needing the DO to make the hash!). To save values in this format, use SAVE/ALL (or MOLD/ALL). HY> I go through the hash with foreach, like this: HY> foreach [a b c] hash [ HY> if none? b [ print "We've got a none! value" ] HY> ] Or, if you can't do the above because you're on an older version of REBOL, you could: forall hash [if 'none = pick hash 1 [hash/1: none]] hash: head hash Then you can use it normally. (If you don't have anything but strings in it, you could also just REDUCE it.) Regards, Gabriele. -- Gabriele Santilli <[g--santilli--tiscalinet--it]> -- REBOL Programmer Amigan -- AGI L'Aquila -- REB: