CS450 Compiler Design
16
Example: Syntax of “Mini-Triangle” (continued)
Expression
::= primary-Expression
| Expression Operator
primary-Expression
primary-Expression
::= Integer-Literal
| V-name
| Operator primary-Expression
| ( Expression )
V-name
::= Identifier
Identifier
::= Letter
| Identifier Letter
| Identifier Digit
Integer-Literal
::= Digit
| Integer-Literal Digit
Operator
::= + | - | * | / | < | > | =