bug#62947: 30.0.50; ERC 5.6: Improve partitioning of outgoing messages

[J.P.]

Tags: patch

Hi,

Someone on Libera recently observed their messages being split into much
smaller chunks than expected. And apparently this problem isn't much of
a secret either. It seems to boil down to `erc-split-line's reliance on
`fill-region' for rejiggering messages on their way out the door. If you
poke around that area long enough, you'll see that all that fill-related
figuring happens column-wise, which means messages always fall under the
protocol limit (and thus the radar). I've made an attempt at correcting
this, but it'd be nice if someone better versed in Emacs fundamentals
could take a quick look. (All the doing happens in the second patch, in
the new function `erc--split-line'.)

Thanks.


In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
 3.24.37, cairo version 1.17.6) of 2023-04-19 built on localhost
Repository revision: c279d65199df4749f649c29aca210419ab85af1a
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12014000
System Description: Fedora Linux 37 (Workstation Edition)

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0001-5.6-Don-t-send-multiline-slash-commands-as-msgs-in-E.patch
Description: Text Data

0002-5.6-Redo-line-splitting-for-outgoing-messages-in-ERC.patch
Description: Text Data