+
+ <!-- Entities for BNF -->
+ <!ENTITY id "<emphasis><link linkend='id'>id</link></emphasis>">
+ <!ENTITY uri "<emphasis><link linkend='uri'>uri</link></emphasis>">
+ <!ENTITY nat "<emphasis><link linkend='nat'>nat</link></emphasis>">
+ <!ENTITY term "<emphasis><link linkend='term'>term</link></emphasis>">
+ <!ENTITY match_pattern "<emphasis><link linkend='match_pattern'>match_pattern</link></emphasis>">
+ <!ENTITY args "<emphasis><link linkend='args'>args</link></emphasis>">
+ <!ENTITY sterm "<emphasis><link linkend='sterm'>sterm</link></emphasis>">