how to remove multiple slashes in URI with 'PREG' or 'HTACCESS'

Question

how to remove multiple slashes in URI with \'PREG\' or \'HTACCESS\'

site.com/edition/new/// -> site.com/edition/new/

---

site.com/edition///new/ -> site.co

Answer 1

http://domain.com/test/test/ > http://domain.com/test/test

# Strip trailing slash(es) from uri
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.+?)[/]+$ $1 [NC,R,L]

http://domain.com//test//test// > http://domain.com/test/test/

# Merge multiple slashes in uri
RewriteCond %{THE_REQUEST} ^[A-Z]+\ //*(.+)//+(.*)\ HTTP
RewriteRule ^ /%1/%2 [R,L]
RewriteCond %{THE_REQUEST} ^[A-Z]+\ //+(.*)\ HTTP
RewriteRule ^ /%1 [R,L]

Change R to R=301 if everything works fine after testing...

Does anyone know how to preserve double slashes in query using above method?

(For example: /test//test//?test=test//test > /test/test/?test=test//test)