Hi Ken,
http://lists.nongnu.org/archive/html/nmh-workers/2017-09/msg00014.html
...
Secondly ... that message is kind of dense.
I think you mean `high in signal'. It was partially to try and document
the current state of play.
...the way certain sequences make things go backwards is kind of
confusing
Well, it's not too bad, but it would be simpler to explain if they
didn't. I think it's a waste that `-', no prefix, and `+' are all
employed, but none is equivalent to one of the other two, varyingly.
cur ....5....
next:-3 ...456...
next:3 .....678. Same as +
next:+3 .....678.
prev:-3 .234.....
prev:3 .234..... Same as -
prev:+3 ...456...
I'd deprecate `+' so it can be used for something more useful in future.
There's lots of other oddities in that email, but I got exhausted before
spelling them all out. I think a simpler notation would keep a name,
reserved or otherwise, as exactly its messages, so `first' is only ever
one email, and then provide means to subset/slice, e.g. last 3 of `mid',
`escape' out of the sequence into the folder at large, and not have to
specify the quantity when it's open ended. With zero-based offsets, not
one.
--
Cheers, Ralph.
https://plus.google.com/+RalphCorderoy
--
Nmh-workers
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