Inspirationally shameless, and a great demonstration of the
power of 'and' versus '&&', something that I hadn't
fully understood. Until now. I have to say, at first it
looks like a drop-in alternative to the presumably
scary C-style double-ampersands (as in, an artifact of
the use English
movement), but when you get right down
to it, it binds much more loosely, enhancing its utility
In the spirit of shameless borrowing, switching to 'pop' and using 'and' nets the following:
But this is really just converging on the same thing:
Which is the same length, and functionally the same due
to heavy cross-pollination.
Of course, if the spec had indicated that the two branches
were labelled '-1' and '1' instead of 'r' and 'l', that
would certainly simplify things a whole lot. Or at least
it would save 6 precious characters:
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