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/*
* Copyright (C) 2002-2017 XimpleWare, [email protected]
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*VTD-XML is protected by US patent 7133857, 7260652, an 7761459*/
/*All licenses to any parties in litigation with XimpleWare have been expressly terminated. No new license, and no renewal of any revoked license,
* is granted to those parties as a result of re-downloading software from this or any other website*/
package com.ximpleware;
import com.ximpleware.xpath.*;
public class UnionExpr extends Expr {
public intHash ih;
public Expr e;
public UnionExpr next;
UnionExpr current;
int state;
public UnionExpr(Expr e1) {
e = e1;
next = null;
current = this;
ih = null;
state = 0;
//cacheable =false;
}
/*
* (non-Javadoc)
*
* @see com.ximpleware.xpath.Expr#evalBoolean(com.ximpleware.VTDNav)
*/
final public boolean evalBoolean(VTDNav vn) {
/*if (e.isNodeSet()==false)
return e.evalBoolean(vn);
else{*/
boolean a = false;
vn.push2();
// record teh stack size
int size = vn.contextStack2.size;
try {
a = (evalNodeSet(vn) != -1);
} catch (Exception e) {
}
//rewind stack
vn.contextStack2.size = size;
reset(vn);
vn.pop2();
return a;
//}
/*else if (e.isNumerical()){
double dval = e.evalNumber(vn);
if (dval == 0.0 || Double.isNaN(dval) )
return false;
return true;
}else {
String s = e.evalString(vn);
if (s==null || s.length()==0)
return false;
return true;
}*/
}
/*
* (non-Javadoc)
*
* @see com.ximpleware.xpath.Expr#evalNumber(com.ximpleware.VTDNav)
*/
final public double evalNumber(VTDNav vn) {
if (e.isNodeSet()== false)
return e.evalNumber(vn);
//double d;
double d = Double.NaN;
int a = 0x7fffffff,k = -1;
vn.push2();
int size = vn.contextStack2.size;
try {
while((k=evalNodeSet(vn))!=-1){
//a = evalNodeSet(vn);
if (k