Hermes: A Tutorial and Reference Manual - Researcher - IBM

148A.2.SyntacticRules variant{component variant{variable
element{expression Expressionsappearinginparticularcontexts: constraint{expression
::=variable{name
position{expression polymorph{expression outport{primary outport{expression
::=primary ::=expression
select{expression table{expression selector{expression source{expression
test{expression ::=expression
::=expression
Typesappearinginparticularcontexts:
inport{type::=type{name enumeration{type element{type::=type{name callmessage{type