private XPathExpr ParseOrExpression()
{
XPathExpr expr = this.ParseAndExpression();
if ((expr == null) || (this.NextToken(XPathTokenID.Or) == null))
{
return(expr);
}
XPathExpr expr2 = new XPathExpr(XPathExprType.Or, ValueDataType.Boolean);
expr2.AddBooleanExpression(XPathExprType.Or, expr);
do
{
expr = this.ParseAndExpression();
if (expr == null)
{
this.ThrowError(QueryCompileError.InvalidExpression);
}
expr2.AddBooleanExpression(XPathExprType.Or, expr);
}while (this.NextToken(XPathTokenID.Or) != null);
return(expr2);
}
XPathExpr ParseOrExpression()
{
XPathExpr andExpr = this.ParseAndExpression();
if (null != andExpr && null != this.NextToken(XPathTokenID.Or))
{
XPathExpr orExpr = new XPathExpr(XPathExprType.Or, ValueDataType.Boolean);
orExpr.AddBooleanExpression(XPathExprType.Or, andExpr);
do
{
andExpr = this.ParseAndExpression();
if (andExpr == null)
{
this.ThrowError(QueryCompileError.InvalidExpression);
}
orExpr.AddBooleanExpression(XPathExprType.Or, andExpr);
} while (null != this.NextToken(XPathTokenID.Or));
return(orExpr);
}
return(andExpr);
}
XPathExpr ParseAndExpression()
{
XPathExpr eqExpr = this.ParseEqualityExpression();
if (null != eqExpr && null != this.NextToken(XPathTokenID.And))
{
XPathExpr andExpr = new XPathExpr(XPathExprType.And, ValueDataType.Boolean);
andExpr.AddBooleanExpression(XPathExprType.And, eqExpr);
do
{
eqExpr = this.ParseEqualityExpression();
if (eqExpr == null)
{
this.ThrowError(QueryCompileError.InvalidExpression);
}
andExpr.AddBooleanExpression(XPathExprType.And, eqExpr);
} while (null != this.NextToken(XPathTokenID.And));
return(andExpr);
}
return(eqExpr);
}
XPathExpr ParseOrExpression()
{
XPathExpr andExpr = this.ParseAndExpression();
if (null != andExpr && null != this.NextToken(XPathTokenID.Or))
{
XPathExpr orExpr = new XPathExpr(XPathExprType.Or, ValueDataType.Boolean);
orExpr.AddBooleanExpression(XPathExprType.Or, andExpr);
do
{
andExpr = this.ParseAndExpression();
if (andExpr == null)
this.ThrowError(QueryCompileError.InvalidExpression);
orExpr.AddBooleanExpression(XPathExprType.Or, andExpr);
} while (null != this.NextToken(XPathTokenID.Or));
return orExpr;
}
return andExpr;
}
XPathExpr ParseAndExpression()
{
XPathExpr eqExpr = this.ParseEqualityExpression();
if (null != eqExpr && null != this.NextToken(XPathTokenID.And))
{
XPathExpr andExpr = new XPathExpr(XPathExprType.And, ValueDataType.Boolean);
andExpr.AddBooleanExpression(XPathExprType.And, eqExpr);
do
{
eqExpr = this.ParseEqualityExpression();
if (eqExpr == null)
this.ThrowError(QueryCompileError.InvalidExpression);
andExpr.AddBooleanExpression(XPathExprType.And, eqExpr);
} while (null != this.NextToken(XPathTokenID.And));
return andExpr;
}
return eqExpr;
}
private XPathExpr ParseOrExpression()
{
XPathExpr expr = this.ParseAndExpression();
if ((expr == null) || (this.NextToken(XPathTokenID.Or) == null))
{
return expr;
}
XPathExpr expr2 = new XPathExpr(XPathExprType.Or, ValueDataType.Boolean);
expr2.AddBooleanExpression(XPathExprType.Or, expr);
do
{
expr = this.ParseAndExpression();
if (expr == null)
{
this.ThrowError(QueryCompileError.InvalidExpression);
}
expr2.AddBooleanExpression(XPathExprType.Or, expr);
}
while (this.NextToken(XPathTokenID.Or) != null);
return expr2;
}