Rewrite URL characters in Joomla with htaccess or router.php - .htaccess

Question

In order to avoid a URL problem in Joomla (components conflict) I must place a dash after a slash :D Example URL "...blog/-article-name" What I need now is to rewrite "/-" to "/" I've spend quite some time to find how to do it with a router.php but with no success. Now I ask for help. Can someone tell me how to do it with htaccess or router.php?
Thanks in advance.
This is where I tried to insert the recommended rule in my htaccess:
#####################################################
# READ THIS COMPLETELY IF YOU CHOOSE TO USE THIS FILE
#
# The line just below this section: 'Options +FollowSymLinks' may cause problems
# with some server configurations. It is required for use of mod_rewrite, but may already
# be set by your server administrator in a way that dissallows changing it in
# your .htaccess file. If using it causes your server to error out, comment it out (add # to
# beginning of line), reload your site in your browser and test your sef url's. If they work,
# it has been set by your server administrator and you do not need it set here.
#
#####################################################
## Can be commented out if causes errors, see notes above.
Options +FollowSymLinks
#
# mod_rewrite in use
/********** TRYED HERE ********/
RewriteCond %{HTTP_HOST} ^www\.mysite\.com [NC]
RewriteRule ^(.*)$ http://mysite.com/$1 [L,R=301]
/********** TRYED HERE ********/
RewriteEngine On
/********** TRYED HERE ********/
########## Begin - Rewrite rules to block out some common exploits
## If you experience problems on your site block out the operations listed below
## This attempts to block the most common type of exploit `attempts` to Joomla!
#
## Deny access to extension xml files (uncomment out to activate)
#<Files ~ "\.xml$">
#Order allow,deny
#Deny from all
#Satisfy all
#</Files>
## End of deny access to extension xml files
RewriteCond %{QUERY_STRING} mosConfig_[a-zA-Z_]{1,21}(=|\%3D) [OR]
# Block out any script trying to base64_encode crap to send via URL
RewriteCond %{QUERY_STRING} base64_encode.*\(.*\) [OR]
# Block out any script that includes a <script> tag in URL
RewriteCond %{QUERY_STRING} (\<|%3C).*script.*(\>|%3E) [NC,OR]
# Block out any script trying to set a PHP GLOBALS variable via URL
RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\%[0-9A-Z]{0,2}) [OR]
# Block out any script trying to modify a _REQUEST variable via URL
RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\%[0-9A-Z]{0,2})
# Send all blocked request to homepage with 403 Forbidden error!
RewriteRule ^(.*)$ index.php [F,L]
#
########## End - Rewrite rules to block out some common exploits
# Uncomment following line if your webserver's URL
# is not directly related to physical file paths.
# Update Your Joomla! Directory (just / for root)
RewriteBase /
/********** TRYED HERE ********/
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /index\.php\ HTTP/
RewriteRule ^index\.php$ http://www.mysite.com/ [R=301,L]
RewriteRule ^index\.html$ http://mysite.com/ [R=301,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
/********** TRYED HERE ********/
#Check to see if browser can accept gzip files.
ReWriteCond %{HTTP:accept-encoding} (gzip.*)
#make sure there’s no trailing .gz on the url
ReWriteCond %{REQUEST_FILENAME} !^.+gz$
#check to see if a .gz version of the file exists.
RewriteCond %{REQUEST_FILENAME}gz -f
#All conditions met so add .gz to URL filename (invisibly)
RewriteRule ^(.+) $1gz [L]
AddType “text/css;charset=UTF-8? .cssgz
AddEncoding gzip .cssgz
AddType “text/javascript;charset=UTF-8? .jsgz
AddEncoding gzip .jsgz
# Disable calls to user registration or password or username reset ("register", "remind", "reset")
RewriteCond %{REQUEST_URI} /component/user/(remind|reset|register)(\.html)? [OR]
RewriteCond %{QUERY_STRING} option=com_user&view=(remind|reset|register)
# Send all blocked request to homepage with 403 Forbidden error!
RewriteRule index\.php$ http://new.marioiliev.com/ [R=301,L]
########## Begin - Joomla! core SEF Section
#
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !^/index.php
RewriteCond %{REQUEST_URI} (/|\.php|\.html|\.htm|\.feed|\.pdf|\.raw|/[^.]*)$ [NC]
RewriteRule (.*) index.php
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]
#
########## End - Joomla! core SEF Section
# Deny access to php, xml and ini files
# within components and plugins directories
RewriteCond %{REQUEST_FILENAME} -f
RewriteCond %{REQUEST_URI} \.php|\.ini|\.xml [NC]
RewriteCond %{REQUEST_URI} \/components\/ [OR]
RewriteCond %{REQUEST_URI} ^\/includes\/|^\/administrator\/includes\/ [OR]
RewriteCond %{REQUEST_URI} \/language\/ [OR]
RewriteCond %{REQUEST_URI} \/libraries\/ [OR]
RewriteCond %{REQUEST_URI} \/modules\/ [OR]
RewriteCond %{REQUEST_URI} \/plugins\/ [OR]
RewriteCond %{REQUEST_URI} \/templates\/ [OR]
RewriteCond %{REQUEST_URI} \/xmlrpc\/
RewriteRule ^(.*)$ index.php [R=404,L]
# Prevent most common SQL-Injections
RewriteCond %{query_string} concat.*\( [NC,OR]
RewriteCond %{query_string} union.*select.*\( [NC,OR]
RewriteCond %{query_string} union.*all.*select [NC]
RewriteRule ^(.*)$ index.php [F,L]
# Block most common hacking tools
SetEnvIf user-agent "Indy Library" stayout=1
SetEnvIf user-agent "libwww-perl" stayout=1
SetEnvIf user-agent "Wget" stayout=1
deny from env=stayout

Answer 1

This should work for you:
RewriteRule ^blog/-(.*) /blog/$1 [L]