| UnitSymbol | ::= | ( NumericScale ( " " | "*" ) MultiplicativeExpression ";" | NumericScale ";" | MultiplicativeExpression ";" ) |
| MultiplicativeExpression | ::= | ( ( "1" | PowerTerm ) ( ( ( <MULT> | "." ) ( "1" | PowerTerm ) ) | DivTerm )* ) |
| DivTerm | ::= | <DIV> PowerTerm |
| PowerTerm | ::= | BaseExpression ( ExponentExpression )? |
| ExponentExpression | ::= | ( <POWER> )? ( Negative | RationalNumberExponent ) |
| Negative | ::= | <SUB> RationalNumberExponent |
| BaseExpression | ::= | Name |
| | | "(" MultiplicativeExpression ")" | |
| NumericScale | ::= | ( <FLOATING_POINT_LITERAL> | <INTEGER_LITERAL> | <ONE_LITERAL> ) |
| RationalNumberExponent | ::= | ( <ONE_LITERAL> | <INTEGER_LITERAL> | "(" <INTEGER_LITERAL> <DIV> <INTEGER_LITERAL> ")" | "(" <ONE_LITERAL> <DIV> <INTEGER_LITERAL> ")" | "(" <INTEGER_LITERAL> <DIV> <ONE_LITERAL> ")" | "(" <ONE_LITERAL> <DIV> <ONE_LITERAL> ")" ) |
| Name | ::= | <IDENTIFIER> |