You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
109 lines
4.0 KiB
109 lines
4.0 KiB
/*
|
|
* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
|
|
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
|
|
*/
|
|
/*
|
|
* Copyright 1999-2004 The Apache Software Foundation.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
/*
|
|
* $Id: ExsltCommon.java,v 1.2.4.1 2005/09/15 02:45:24 jeffsuttor Exp $
|
|
*/
|
|
package com.sun.org.apache.xalan.internal.lib;
|
|
|
|
import com.sun.org.apache.xalan.internal.extensions.ExpressionContext;
|
|
import com.sun.org.apache.xml.internal.dtm.DTMIterator;
|
|
import com.sun.org.apache.xml.internal.dtm.ref.DTMNodeIterator;
|
|
import com.sun.org.apache.xpath.internal.NodeSet;
|
|
|
|
/**
|
|
* This class contains EXSLT common extension functions.
|
|
* It is accessed by specifying a namespace URI as follows:
|
|
* <pre>
|
|
* xmlns:exslt="http://exslt.org/common"
|
|
* </pre>
|
|
*
|
|
* The documentation for each function has been copied from the relevant
|
|
* EXSLT Implementer page.
|
|
*
|
|
* @see <a href="http://www.exslt.org/">EXSLT</a>
|
|
* @xsl.usage general
|
|
*/
|
|
public class ExsltCommon
|
|
{
|
|
/**
|
|
* The exsl:object-type function returns a string giving the type of the object passed
|
|
* as the argument. The possible object types are: 'string', 'number', 'boolean',
|
|
* 'node-set', 'RTF', or 'external'.
|
|
*
|
|
* Most XSLT object types can be coerced to each other without error. However, there are
|
|
* certain coercions that raise errors, most importantly treating anything other than a
|
|
* node set as a node set. Authors of utilities such as named templates or user-defined
|
|
* extension functions may wish to give some flexibility in the parameter and argument values
|
|
* that are accepted by the utility; the exsl:object-type function enables them to do so.
|
|
*
|
|
* The Xalan extensions MethodResolver converts 'object-type' to 'objectType'.
|
|
*
|
|
* @param obj The object to be typed.
|
|
* @return objectType 'string', 'number', 'boolean', 'node-set', 'RTF', or 'external'.
|
|
*
|
|
* @see <a href="http://www.exslt.org/">EXSLT</a>
|
|
*/
|
|
public static String objectType (Object obj)
|
|
{
|
|
if (obj instanceof String)
|
|
return "string";
|
|
else if (obj instanceof Boolean)
|
|
return "boolean";
|
|
else if (obj instanceof Number)
|
|
return "number";
|
|
else if (obj instanceof DTMNodeIterator)
|
|
{
|
|
DTMIterator dtmI = ((DTMNodeIterator)obj).getDTMIterator();
|
|
if (dtmI instanceof com.sun.org.apache.xpath.internal.axes.RTFIterator)
|
|
return "RTF";
|
|
else
|
|
return "node-set";
|
|
}
|
|
else
|
|
return "unknown";
|
|
}
|
|
|
|
/**
|
|
* The exsl:node-set function converts a result tree fragment (which is what you get
|
|
* when you use the content of xsl:variable rather than its select attribute to give
|
|
* a variable value) into a node set. This enables you to process the XML that you create
|
|
* within a variable, and therefore do multi-step processing.
|
|
*
|
|
* You can also use this function to turn a string into a text node, which is helpful
|
|
* if you want to pass a string to a function that only accepts a node set.
|
|
*
|
|
* The Xalan extensions MethodResolver converts 'node-set' to 'nodeSet'.
|
|
*
|
|
* @param myProcessor is passed in by the Xalan extension processor
|
|
* @param rtf The result tree fragment to be converted to a node-set.
|
|
*
|
|
* @return node-set with the contents of the result tree fragment.
|
|
*
|
|
* Note: Already implemented in the xalan namespace as nodeset.
|
|
*
|
|
* @see <a href="http://www.exslt.org/">EXSLT</a>
|
|
*/
|
|
public static NodeSet nodeSet(ExpressionContext myProcessor, Object rtf)
|
|
{
|
|
return Extensions.nodeset(myProcessor, rtf);
|
|
}
|
|
|
|
}
|