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bug#49316: Add apply-partially's right version

From: daanturo
Subject: bug#49316: Add apply-partially's right version
Date: Fri, 2 Jul 2021 23:32:25 +0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0

Content-Type: text/plain

Tags: patch

Re-write the NEWS entry of apply-rpartially.

Content-Type: text/patch
Content-Disposition: attachment;

From 339b0ed82dbc0430ce71294f04a53547f532c1af Mon Sep 17 00:00:00 2001
From: Daanturo <daanturo@gmail.com>
Date: Fri, 2 Jul 2021 23:24:37 +0700
Subject: [PATCH] Better explanation for apply-rpartially in NEWS

* etc/NEWS (Lisp Changes in Emacs 28.1): Better explanation for
etc/NEWS | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/etc/NEWS b/etc/NEWS
index be30d6c859..a06456035c 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -2911,8 +2911,8 @@ The former is now declared obsolete.

** New function 'apply-rpartially'.
-Functionally equivalent to 'apply-partially' but arguments are aligned
-to the right instead.
+This is almost similar to 'apply-partially' except that the last
+arguments are fixed instead of first ones.

** New function 'syntax-class-to-char'.


On 7/2/21 1:45 AM, Eli Zaretskii wrote:
From: daanturo <daanturo@gmail.com>
Date: Fri, 2 Jul 2021 00:06:35 +0700
Cc: "Basil L. Contovounesios" <contovob@tcd.ie>

(Please ignore my immediately precededing email, I'm sorry for not being
used to sending patches by mailing list.)
I see no problems in the preceding email, so I think you have nothing
to apologize for.

+@defun apply-rpartially func &rest args
+This function does mostly the same as @code{apply-partially}, but
+@var{args} are aligned to the right of @var{func}'s parameters
I don't think this explains the purpose of the function clearly
enough.  The documentation of apply-partially doesn't mention any
"alignment", so it's hard to understand what you want to say here.
Can you think of a better description?

+(defalias 'square (apply-rpartially #'expt 2)
+ "Return argument squared.")
+@end group
+(square 3)
+ @result{} 9
+@end group
+@end example
IMO, the example could be more revealing if you could contrast
apply-rpartially with apply-partially.

+** New function 'apply-rpartially'.
+Funcionally equivalent to 'apply-partially' but arguments are aligned
+to the right instead.
After we find a good wording for the manual, we should think how to
reword the NEWS entry accordingly.



Attachment: 0005-Better-explanation-for-apply-rpartially-in-NEWS.patch
Description: Text Data

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