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|
parser grammar VecMath_Parser;
options {
output=AST;
}
tokens {
SHIFT;
VEC;
}
public
prog
: stat+ ;
stat
: ID EQUAL expr -> ^( EQUAL ID expr )
| PRINT^ expr
;
expr
: multExpr ( PLUS^ multExpr )*
;
multExpr
: primary ( ( MULT^ | DOT^ ) primary )*
;
primary
: INT
| ID
| OPEN_SQUARE expr ( COMMA expr )* CLOSE_SQUARE -> ^( VEC expr+ )
| OPEN_BRACE expr CLOSE_BRACE -> expr
;
|
