将单个和连续的下划线重写为破折号

Question

我正在尝试用下划线重写网址以便为购物网站划线。

产品名称目前对空格有下划线。一个典型的网址如下：

http://test.local/category-name/product_name_a

我目前的.htaccess如下，并成功地重写这：

http://test.local/category-name/product-name-a

RewriteEngine On 
RewriteBase/

#Rewrite Underscores to dashes 
RewriteCond %{REQUEST_FILENAME} !-f 
RewriteRule ^([^_]*)_([^_]*)$ $1-$2 [L,R=302,NE] 
RewriteCond %{REQUEST_FILENAME} !-f 
RewriteRule ^([^_]*)_+(.+)$ $1-$2 [L] 

# Redirect to index.php & standard Opencart stuff 
RewriteRule ^sitemap.xml$ index.php?route=feed/google_sitemap [L] 
RewriteRule ^googlebase.xml$ index.php?route=feed/google_base [L] 
RewriteRule ^download/(.*) /index.php?route=error/not_found [L] 
RewriteCond %{REQUEST_FILENAME} !-f 
RewriteCond %{REQUEST_FILENAME} !-d 
RewriteCond %{REQUEST_URI} !.*\.(ico|gif|jpg|jpeg|png|js|css) 
RewriteRule ^([^?]*) index.php?_route_=$1 [L,QSA] 

但是有些产品有连续的下划线在他们这样的as

http://test.local/category-name/product__name__b

或混合两种，如：

http://test.local/category-name/product__name_a

我已经尝试和失败，让这些改写到：

http://test.local/category-name/product--name--b

http://test.local/category-name/product--name-a

不破现有的重写。任何帮助非常感谢。

Answer 1

只需调整你的正则表达式中的第二个规则：

RewriteEngine On 
RewriteBase/

#Rewrite Underscores to dashes 
RewriteCond %{REQUEST_FILENAME} !-f 
RewriteRule ^([^_]*)_([^_]*)$ $1-$2 [L,R=302,NE] 

RewriteCond %{REQUEST_FILENAME} !-f 
RewriteRule ^([^_]*)_(.+)$ $1-$2 [L] 

# Redirect to index.php & standard Opencart stuff 
RewriteRule ^sitemap\.xml$ index.php?route=feed/google_sitemap [L] 

RewriteRule ^googlebase\.xml$ index.php?route=feed/google_base [L] 

RewriteRule ^download/(.*) /index.php?route=error/not_found [L] 

RewriteCond %{REQUEST_FILENAME} !-f 
RewriteCond %{REQUEST_FILENAME} !-d 
RewriteCond %{REQUEST_URI} !.*\.(ico|gif|jpg|jpeg|png|js|css) 
RewriteRule ^([^?]*) index.php?_route_=$1 [L,QSA]