Redirecting all requests to a folder except certain ones?

Question

Apache HTTP Server

Structure roughly:

/public
   file.html
   index.html
/scr
  scr.php
/somedir
index.html

You need to redirect all requests to / public, except for those made to scr, that is

# В url
example.com/file.html
# На сервере подгружается 
/public/file.html
# В url
example.com
# На сервере подгружается 
/public/index.html

But when referring to scr

# В url
example.com/scr/scr.php
# На сервере подгружается 
/scr/scr.php

At the same time, it is necessary that the public url not be displayed when redirecting

Answer 1

I, who will face the same question in the future, catch

RewriteEngine On

RewriteCond %{REQUEST_URI} !^/scr
RewriteCond %{DOCUMENT_ROOT}/public/$1/ !-d [NC]
RewriteRule ^((?!public/).*?)/?$ public/$1 [L,NC]

RewriteCond %{REQUEST_URI} !^/scr
RewriteCond %{DOCUMENT_ROOT}/public/$1 -d [NC]
RewriteRule ^((?!public/).+?)/?$ public/$1/ [L,NC]

And if you think that this solution is not correct, please tell me in the comments or answers the correct one