ometa Vhdl <: Parser{
  keyword :xs    = token(xs) ~letterOrDigit                            -> xs,
  name    = spaces firstAndRest(`letter, `letterOrDigit):cs -> cs.join(''),
  entitydecl = name:e ?(e != 'end'),
  entity = keyword(#entity) name:n space "is" (entitydecl*):e 'end' -> n// ';' ->[`Entity, n, e],
}

e="entity Hallo is j klj jkl klj kljk ljdec end"

Vhdl.matchAll(e,"entity") 





[ 
⟨generic declaration ⟩ ] 
[ 
⟨port declaration ⟩ ] 
[ 
⟨local declarations⟩ ] 
[ begin normalerweise nicht benutzt 
⟨passive statements⟩ ] 
end [ entity ] [ 
⟨entityId ⟩ ] ; 
⟨generic declaration ⟩ ::= Parameter 
generic ( 
⟨generic list ⟩ : ⟨typeId ⟩ [ := ⟨expression ⟩ ] { ; 
⟨generic list ⟩ : ⟨typeId ⟩ [ := ⟨expression ⟩ ] } ); 
⟨port declaration ⟩ ::= Ein- und Ausg ¨ 
ange 
port ( 
⟨port list ⟩ : [ ⟨mode⟩ ] ⟨typeId ⟩ [ := ⟨expression ⟩ ] { ; 
⟨port list ⟩ : [ mode] typeId [ := expression ] ); 
⟨mode⟩ ::= in | out | inout | buffer