On 11.10.2011 09:11, WANG Cong wrote:

Interesting function, if i understand it correctly, it parallelizes
the stream into two so that can speed up the pattern filtering?

My brain spins...

It was added by John Reiser (see commit d23159a69c818274486f1287ba6267b96f3febb7).

I just moved the main body into a function, so it's easily eval'able - in order to avoid {var}>& construct. As a side effect, it's (subjectively) a bit easier to read.

From what I can see, the outermost parentheses along with related _merge fd could probably be removed. Not tested that though, no big difference either.

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