manual

#
# Provide access to the documentation on your server as
#  http://yourserver.example.com/manual/
# The documentation is always available at
#  http://httpd.apache.org/docs/2.2/
#
# Required modules: mod_alias, mod_setenvif, mod_negotiation
#

AliasMatch ^/manual(?:/(?:de|en|es|fr|ja|ko|pt-br|ru))?(/.*)?$ "/usr/local/Apache2.2.X/manual$1"

<Directory "/usr/local/Apache2.2.X/manual">
  Options Indexes
  AllowOverride None
  Order allow,deny
  Allow from all

  <Files *.html>
    SetHandler type-map
  </Files>

  SetEnvIf Request_URI ^/manual/(de|en|es|fr|ja|ko|pt-br|ru)/ prefer-language=$1
    RedirectMatch 301 ^/manual(?:/(de|en|es|fr|ja|ko|pt-br|ru)){2,}(/.*)?$ /manual/$1$2

  LanguagePriority en de es fr ja ko pt-br ru 
  ForceLanguagePriority Prefer Fallback
</Directory>