((externallink|footnoteref|indexterm|link|xref|#PCDATA|functionparam| varparam|anchor|action|application|button|classname|command| computeroutput|constant|dbname|dbtable|dbfield|dbrecord|errorname| errortype|eventtype|eventstructure|filename|option|function|hardware| hwapplic|icon|interface|interfacedefinition|keycap|keycode|keysym| lineannotation|literal|macro|mask|menu|menuitem|prompt|property| osname|protocolrequest|resource|returnvalue|structfield|structname| swapplic|symbol|systemitem|systemname|token|type|userinput|optional)+ )