如何重定向到 mod_rewrite 中存在的文件？

如何解决如何重定向到 mod_rewrite 中存在的文件？

这是我的重写规则：

RewriteEngine On

RewriteBase /

# check if user supports webp
RewriteCond %{HTTP_ACCEPT} !image\/webp

# see if url has webp extension,and store the name and the extension with the case
## so if the user enters WEBp,webP,etc. I get the name exactly,so
## that I can see if a file with the exact name exists
RewriteCond %{REQUEST_URI} (.*)\.(webp)$ [NC]

# check if the webp file exists,# remember we use the extension with the case,like
# WebP,webP etc. as we are using linux
RewriteCond %{DOCUMENT_ROOT}%1\.%2 -f

# check if jpg,jpeg or png file exists
RewriteCond ${DOCUMENT_ROOT}%1\.(jpe?g|png) -f [NC]

# redirect user to jpe?g | png file with the case,# so,if a jpg file like example.JPeG exists,we want to redirect to JPeG,not jpeg
RewriteRule ^ %1.%3 [NC,R=301,L]

以上不行！如何使它重定向到存在的文件的区分大小写的名称： 所以，如果所有条件都满足，并且一个名为 (webp 文件名).jpEg 的文件存在，我们希望将它们重定向到 (webp 文件名).jpEg，而不是 (webp 文件名).jpeg