| expression | ::= | ( conditional )? ( <EOF> ) |
| conditional | ::= | lor ( "?" conditional ":" conditional )? |
| lor | ::= | land ( <LOR> land )* |
| land | ::= | bor ( <LAND> bor )* |
| bor | ::= | bxor ( <OR> bxor )* |
| bxor | ::= | band ( <XOR> band )* |
| band | ::= | equality ( <AND> equality )* |
| equality | ::= | relation ( ( <EQ> | <NE> ) relation )* |
| relation | ::= | shift ( ( <LT> | <GE> | <GT> | <LE> ) shift )* |
| shift | ::= | sum ( ( <LS> | <RS> | <RUS> ) sum )* |
| sum | ::= | term ( ( <PLUS> | <MINUS> ) term )* |
| term | ::= | unary ( ( <MULTIPLY> | <DIVIDE> | <REMAINDER> ) unary )* |
| unary | ::= | <MINUS> element |
| | | <BWCOMPL> element | |
| | | <LOGCOMPL> element | |
| | | "(" ( <ID> ) ")" element | |
| | | element | |
| element | ::= | literal |
| | | <TRUE> | |
| | | <FALSE> | |
| | | function | |
| | | "(" conditional ")" | |
| function | ::= | ( <ID> ) ( "(" ( conditional ( "," conditional )* )? ")" )? |
| literal | ::= | <INTEGER_LITERAL> |
| | | <FLOATING_POINT_LITERAL> | |
| | | <CHARACTER_LITERAL> | |
| | | <STRING_LITERAL> |