Padrões sintácticos típicos

Pattern name	Possible implementation
Sequence	x y ... z '[' INT+ ']' '[' INT* ']'
Sequence with terminator	( instruction ';' )* ( row '\n' )*
Sequence with separator	expr ( ',' expr )* ( expr (',' expr)* )?
Choice	type: 'int' | 'float' instruction: conditional | loop | ... ;
Token independence	'(' expr ')' ID '[' expr ']' '{' instruction+ '}' '<' ID ( ',' ID )* '>'
Recursivity	expr: '(' expr ')' | ID; classDef: 'class' ID '{' (classDef|method|field)* '}';