How to combine rules in htaccess?

Question

htaccess

Good afternoon! there is a file in which the following rules simultaneously work:
1) redirect from http to https
2) redirect from without www to www
3) redirect from without / at the end with / at the end
4) redirect from double // to
one redirect

you need to add a redirect from double to single (without creating a chain of redirects
When I add a rule

RewriteCond %{REQUEST_URI} ^(.*)--(.*)$
RewriteRule . %1-%2 [R=301,L]

the whole .htaccess chain is created

RewriteEngine On
RewriteCond %{REQUEST_URI} !\?
RewriteCond %{REQUEST_URI} !\&
RewriteCond %{REQUEST_URI} !\=
RewriteCond %{REQUEST_URI} !\.
RewriteCond %{REQUEST_URI} !\/$
RewriteCond %{HTTP_HOST} ^www\.(.*)$
RewriteRule ^(.*)$ https://www.%1/$1/ [L,R=301]

RewriteCond %{REQUEST_URI} !\?
RewriteCond %{REQUEST_URI} !\&
RewriteCond %{REQUEST_URI} !\=
RewriteCond %{REQUEST_URI} !\.
RewriteCond %{REQUEST_URI} !\/$
RewriteCond %{HTTP_HOST} ^([^www].*)$
RewriteRule ^(.*)$ https://www.%1/$1/ [L,R=301]

RewriteCond %{REQUEST_URI} !\?
RewriteCond %{REQUEST_URI} !\&
RewriteCond %{REQUEST_URI} !\=
RewriteCond %{REQUEST_URI} !\.
RewriteCond %{REQUEST_URI} ![^\/]$
RewriteCond %{HTTP_HOST} ^([^www].*)$
RewriteRule ^(.*)$ https://www.%1/$1 [L,R=301]


# DOUBLE / START
RewriteCond %{THE_REQUEST} //
RewriteRule .* /$0 [R=301,L]
# DOUBLE -- START
RewriteCond %{REQUEST_URI} ^(.*)--(.*)$
RewriteRule . %1-%2 [R=301,L]

Please tell me how to combine the rules so that a chain of redirects would not be created, and all redirects would occur simultaneously?

Answer 1

RewriteEngine On

RewriteCond %{REQUEST_URI} !/$  [OR]
RewriteCond %{THE_REQUEST} ^[^?]+(?://|--)
RewriteCond $1             ^(.*-)-(.*)$|(.*)
RewriteRule ^([^.]+?)/?$ https://www.soskin.com.ua/%1%2%3/ [R=301,L]

RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule .* https://www.soskin.com.ua/$0 [R=301,L]