My apologies to the non-plumbers - we should have this kind of threads on CMSPIP-L instead...
On 7/13/06, Brian Nielsen <[EMAIL PROTECTED]> wrote:
Not my goal, but thanks anyway. I was hoping to eliminate the trivial
Something that may help in a few cases (which I only dare to suggest now that Melinda is travelling) is the IF stage. It does not help with stages that split the entire stream (like take, frlabel, etc) but it does help when some of the records need to bypass a pipeline segment. Like this: | x: if pick w1 == ,USER, | xlate w3 00-FF * | x: Normally this would require an extra faninany and the dangling connection stuff at the end. And sometimes it is handy to negate the selection use the NOT stage so that you can code the secondary sooner and pick up the main stream without the risk of forgetting the remainder. Especially when you put temporary debugging stuff in, it helps to limit the number of places that you need to modify to take it out again. | ... | c: not count lines | spec ,We have, 1 w1 nw ,records, nw | cons \ c: | ... Or something like this: | .. | f: fanout | insert ,Trace #1 , | cons \ f: | .. And when you code your own multi-stream stages in REXX, you can take advantage of an unconventional way to arrange the the streams. My favorite one is the generalized pipeline cache that fits around some cpu intensive plumbing and memorizes what goes in and out that segment, and bypasses it when the item is in the cache. | .. | p: pipcache | ... expensive plumbing | p: | Rob -- Rob van der Heij Velocity Software, Inc http://velocitysoftware.com/
