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[REBOL] Re: Sort by first part of line

From: greggirwin:mindspring at: 3-Sep-2002 16:18

Hi Louis, << I still don't quite understand sort. How do I sort the following lines by the numbers only (not by the letters and not by the length). Note that there is a space before each number in the test data below. >> How about this? (assuming items are space delimited strings) compare-items: func [a b /local aa bb] [ aa: to integer! first parse a none bb: to integer! first parse b none either aa = bb [0][either aa < bb [-1][1]] ] sort/compare data :compare-items Not terribly efficient, as it's doing a lot of work on each comparison, but it's a start. --Gregg