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bug#48212: [PATCH] subr-x.el: Added `while-let` and `while-let*`
From: |
Lars Ingebrigtsen |
Subject: |
bug#48212: [PATCH] subr-x.el: Added `while-let` and `while-let*` |
Date: |
Wed, 12 May 2021 20:57:11 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Hu Lucius <orctarorga@gmail.com> writes:
> I've added two functions in `subr-x`, `while-let` and `while-let*`.
>
> `(while-let SPEC BODY)` evaluate each binding in turn and stop if a
> binding value is nil.
> BODY is evaluated repeatedly until a binding value is nil.
>
> `(while-let* VARLIST BODY)` is like `while-let` except VARLIST is of
> the form ((SYMBOL SOMETHING) ...).
Thank you, but I think these macros don't really give enough
functionality to warrant adding them to Emacs -- in general, using
`cl-loop' when you have conditions like this makes more sense, since it
gives you more control over the conditions and the return values.
So I'm closing this bug report.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no