.htaccess

# Turn off MultiViews, multiple content types need multiple extensions
Options -MultiViews

AddType text/html;charset=UTF-8     .html
AddType text/n3;charset=UTF-8       .n3
AddType application/n-triples       .nt
AddType application/rdf+xml         .rdf
AddType text/turtle;charset=UTF-8   .ttl

# Rewrite engine setup
RewriteEngine On
RewriteBase /

# Rewrite rule to serve HTML content from the vocabulary URI if requested
RewriteCond %{HTTP_ACCEPT}          text/html               [OR]
RewriteCond %{HTTP_ACCEPT}          application/xhtml\+xml
RewriteRule ^(discovery|xkos|phdd)$  $1.html                    [R=303]

# Rewrite rule to serve N3 content from the vocabulary URI if requested
RewriteCond %{HTTP_ACCEPT}          text/n3                 [OR]
RewriteCond %{HTTP_ACCEPT}          text/rdf\+n3
RewriteRule ^(discovery|xkos|phdd)$  $1.n3                      [R=303]

# Rewrite rule to serve N-triples content from the vocabulary URI if requested
RewriteCond %{HTTP_ACCEPT}          application/n-triples
RewriteRule ^(discovery|xkos|phdd)$  $1.nt                     [R=303]


# Rewrite rule to serve RDF/XML content from the vocabulary URI if requested
RewriteCond %{HTTP_ACCEPT}          application/rdf\+xml
RewriteRule ^(discovery|xkos|phdd)$  $1.rdf                     [R=303]

# Rewrite rule to serve Turtle content from the vocabulary URI if requested
RewriteCond %{HTTP_ACCEPT}          text/turtle             [OR]
RewriteCond %{HTTP_ACCEPT}          application/x-turtle
RewriteRule ^(discovery|xkos|phdd)$  $1.ttl                     [R=303]

# Rewrite rule to serve HTML content from the vocabulary URI by default
RewriteRule ^(discovery|xkos|phdd)$  $1.html                    [R=303]

# Redirect for empty path to RDF page at DDI Alliance
RewriteRule ^$                      http://www.ddialliance.org/Specification/RDF    [R=303]