GNU bug report logs - #57548
Add new function `seq-positions'

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From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: Damien Cassou <damien <at> cassou.me>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 57548 <at> debbugs.gnu.org
Subject: bug#57548: Add new function `seq-positions'
Date: Tue, 06 Sep 2022 03:44:13 +0200

Damien Cassou <damien <at> cassou.me> writes:

> Very clear. See attached patch for the new version. I also added a unit
> test to make sure the result is what you expect.

Ok, great, thanks.

> +TESTFN is a two-argument function which is passed each element of
> +SEQUENCE as first argument and ELT as second. TESTFN defaults to
> +`equal'.

I hope this order feels natural for everyone?  `pred` in `pcase' does
the opposite, but there the predicate comes first (syntactically).
We don't need to have the order analogous to pcase - but if people
prefer ELT being the first element in the TESTFN call, we can still
change it.

Michael.

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