/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 1999 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xalan" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 1999, Lotus
* Development Corporation., http://www.lotus.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.xalan.xpath;
import org.w3c.dom.*;
import org.apache.xpath.XPathContext;
/**
* <meta name="usage" content="general"/>
* This class represents an XPath string object, and is capable of
* converting the string to other types, such as a number.
* @deprecated This compatibility layer will be removed in later releases.
*/
public class XString extends XObject
{
org.apache.xpath.objects.XString m_xstring;
/**
* Construct a XString object.
*/
public XString(String val)
{
super(val);
m_xstring = new org.apache.xpath.objects.XString(val);
}
/**
* Tell that this is a CLASS_STRING.
*/
public int getType()
{
return m_xstring.getType();
}
/**
* Given a request type, return the equivalent string.
* For diagnostic purposes.
*/
public String getTypeString() // PR:DMAN4MBJ4D Submitted by:<garyp@firstech.com> change to protected
{
return m_xstring.getTypeString();
}
/**
* Cast a string to a number.
*/
public static double castToNum(String s)
{
double result;
if (null == s)
result = 0.0;
else
{
try
{
/**
* TODO: Adjust this for locale. Need to take into
* account the lang parameter on the xsl:sort
*/
// It seems we can not use this as it just parses the
// start of the string until it finds a non-number char,
// which is not what we want according to the XSLT spec.
// Also, I *think* this is a local-specific
// parse, which is also not what we want according to the
// XSLT spec (see below).
// NumberFormat formatter = NumberFormat.getNumberInstance();
// result = formatter.parse(s.trim()).doubleValue();
// The dumb XSLT spec says: "The number function should
// not be used for conversion of numeric data occurring
// in an element in an XML document unless the element
// is of a type that represents numeric data in a
// language-neutral format (which would typically be
// transformed into a language-specific format for
// presentation to a user). In addition, the number
// function cannot be used unless the language-neutral
// format used by the element is consistent with the
// XPath syntax for a Number."
// So I guess we need to check, if the default local
// is french, does Double.valueOf use the local specific
// parse? Or does it use the ieee parse?
result = Double.valueOf(s.trim()).doubleValue();
}
// catch (ParseException e)
catch (NumberFormatException nfe)
{
result = Double.NaN;
}
}
return result;
}
/**
* Cast result object to a number.
*/
public double num()
{
return m_xstring.num();
}
/**
* Cast result object to a boolean.
*/
public boolean bool()
{
return m_xstring.bool();
}
/**
* Cast result object to a string.
*/
public String str()
{
return m_xstring.str();
}
/**
* Cast result object to a result tree fragment.
*/
public DocumentFragment rtree(XPathSupport support)
{
org.apache.xpath.XPathContext context = (org.apache.xpath.XPathContext)support;
return m_xstring.rtree(context);
//return (DocumentFragment)context.getDTMManager().getDTM(result).getNode(result);
}
/**
* Cast result object to a result tree fragment.
*
* @param support Xpath context to use for the conversion
*
* @return A document fragment with this string as a child node
*/
public DocumentFragment rtree(XPathContext support)
{
org.apache.xpath.XPathContext context = (org.apache.xpath.XPathContext)support;
return m_xstring.rtree(context);
//return (DocumentFragment)context.getDTMManager().getDTM(result).getNode(result);
}
/**
* Tell if two objects are functionally equal.
*/
public boolean equals(XObject obj2)
throws org.xml.sax.SAXException
{
return m_xstring.equals(obj2);
}
}