| | 1 | GLOBAL := ( FUNCTION | VARIABLE )* |
| | 2 | FUNCTION := TYPE MODIFIERS _IDENTIFIER ARGSLIST ( ';' | STMTLIST ) |
| | 3 | TYPE := 'int' |
| | 4 | MODIFIERS := '*'* |
| | 5 | ARGSLIST := '(' [ TYPE _IDENTIFIER ( ',' TYPE _IDENTIFIER)]* ] ')' |
| | 6 | STMTLIST := '{' ( VARIABLE | STATEMENT | STMTLIST )* '}' |
| | 7 | VARIABLE := TYPE MODIFIERS _IDENTIFIER [ = EXPRESSION ] ';' |
| | 8 | STATEMENT := ( ';' | EXPRESSION ';' | WHILE | IF | RETURN ) |
| | 9 | WHILE := 'while' '(' EXPRESSION ')' CHUNK |
| | 10 | IF := 'if' '(' EXPRESSION ')' CHUNK |
| | 11 | RETURN := 'return' EXPRESSION ';' |
| | 12 | CHUNK := ( STMTLIST | STATEMENT ) |
| | 13 | EXPRESSION := P13EXPR |
| | 14 | P13EXPR := P6EXPR ( '=' P6EXPR )* |
| | 15 | P6EXPR := P5EXPR ( '==' P5EXPR )* |
| | 16 | P5EXPR := P3EXPR ( ( '<' | '>' ) P3EXPR )* |
| | 17 | P3EXPR := P2EXPR ( ( '+' | '-' ) P2EXPR )* |
| | 18 | P2EXPR := _NUMBER ( ( '*' | '/' ) _NUMBER )* |
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