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package syntaxParser;
/**
* BooleanScalarExpr
* Creation date: (3/3/2003 2:28:43 AM)
* @author: mattia parigiani, Sorin Stancu-Mara
*/
class BooleanScalarExpr implements IParseTreeNode {
BooleanScalarExpr leftBooleanScalarExpr, rightBooleanScalarExpr;
String booleanConstant;
String op;
public BooleanScalarExpr(String bc) {
booleanConstant = bc;
}
public BooleanScalarExpr(String op, BooleanScalarExpr be){
this.op = op;
leftBooleanScalarExpr = be ;
}
public BooleanScalarExpr(String op, BooleanScalarExpr lbe, BooleanScalarExpr rbe){
this.op = op;
leftBooleanScalarExpr = lbe ;
rightBooleanScalarExpr = rbe ;
}
public String toXML(){
if (op == null) return "<boolean>" + booleanConstant + "</boolean>";
else if (op.equals("not")) return "<scalarNot>" + leftBooleanScalarExpr.toXML() + "</scalarNot>";
else {
if (op.equals("and")) op = "scalarAnd";
else if (op.equals("or")) op = "scalarOr";
else if (op.equals("xor")) op = "scalarXor";
return "<" + op + ">" + leftBooleanScalarExpr.toXML() + rightBooleanScalarExpr.toXML() + "</" + op + ">";
}
}
}
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