bug#56335: 29.0.50; [PATCH] Add more breakpoint chars support to longlines-mode

[Manuel Giraud]

Hi,

Regarding this conversation:
https://lists.gnu.org/archive/html/help-gnu-emacs/2022-06/msg00638.html

I have try to improve longlines-mode to detect more (and user settable)
breakpoints into long lines.  I have tested it on the file from the
cited conversation and a book (sentences with spaces) on one line.  It
seems to work for me but it might need more testing.

I'd like to prepare another patch afterward to be able to find
breakpoint past fill-column.  For example, the file from the
conversation fails to break after some lines because it contains
*really* long words.

0001-Add-more-separators-to-longlines-mode.patch
Description: Text Data

In GNU Emacs 29.0.50 (build 1, x86_64-unknown-openbsd7.1, X toolkit, cairo 
version 1.17.6, Xaw scroll bars)
 of 2022-06-30 built on elite.giraud
Repository revision: 77e99dcacb57cae558f833334a8367fbc9b4fd8a
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101003
System Description: OpenBSD elite.giraud 7.1 GENERIC.MP#579 amd64

Configured using:
 'configure --prefix=/home/manuel/emacs --bindir=/home/manuel/bin
 --with-x-toolkit=athena --without-sound --without-compress-install
 CPPFLAGS=-I/usr/local/include LDFLAGS=-L/usr/local/lib'

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ZLIB

Important settings:
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Major mode: Group

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Load-path shadows:
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/home/manuel/emacs/share/emacs/29.0.50/lisp/transient

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Memory information:
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-- 
Manuel Giraud