author | joehw |
Fri, 19 Jul 2019 02:40:59 +0000 | |
changeset 55742 | 6e1161923897 |
parent 48577 | 8dff65f1d611 |
permissions | -rw-r--r-- |
6 | 1 |
/* |
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* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved. |
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*/ |
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/* |
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* Licensed to the Apache Software Foundation (ASF) under one or more |
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* contributor license agreements. See the NOTICE file distributed with |
|
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* this work for additional information regarding copyright ownership. |
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* The ASF licenses this file to You under the Apache License, Version 2.0 |
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* (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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||
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package com.sun.org.apache.xalan.internal.xsltc.compiler; |
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import com.sun.java_cup.internal.runtime.Symbol; |
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import com.sun.org.apache.xalan.internal.XalanConstants; |
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import com.sun.org.apache.xalan.internal.utils.ObjectFactory; |
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import com.sun.org.apache.xalan.internal.utils.XMLSecurityManager; |
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import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ErrorMsg; |
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import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodType; |
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import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type; |
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import com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError; |
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import com.sun.org.apache.xml.internal.serializer.utils.SystemIDResolver; |
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import java.io.File; |
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import java.io.IOException; |
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import java.io.StringReader; |
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import java.util.ArrayList; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.Properties; |
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import java.util.Stack; |
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import java.util.StringTokenizer; |
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import javax.xml.XMLConstants; |
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import javax.xml.catalog.CatalogFeatures; |
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import jdk.xml.internal.ErrorHandlerProxy; |
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import jdk.xml.internal.JdkXmlFeatures; |
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import jdk.xml.internal.JdkXmlUtils; |
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import jdk.xml.internal.SecuritySupport; |
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import org.xml.sax.Attributes; |
50 |
import org.xml.sax.ContentHandler; |
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import org.xml.sax.InputSource; |
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import org.xml.sax.Locator; |
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import org.xml.sax.SAXException; |
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import org.xml.sax.SAXNotRecognizedException; |
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import org.xml.sax.SAXNotSupportedException; |
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import org.xml.sax.XMLReader; |
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import org.xml.sax.helpers.AttributesImpl; |
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/** |
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* @author Jacek Ambroziak |
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* @author Santiago Pericas-Geertsen |
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* @author G. Todd Miller |
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* @author Morten Jorgensen |
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* @author Erwin Bolwidt <ejb@klomp.org> |
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* @LastModified: July 2019 |
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*/ |
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public class Parser implements Constants, ContentHandler { |
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private static final String XSL = "xsl"; // standard prefix |
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private static final String TRANSLET = "translet"; // extension prefix |
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private Locator _locator = null; |
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private XSLTC _xsltc; // Reference to the compiler object. |
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private XPathParser _xpathParser; // Reference to the XPath parser. |
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private ArrayList<ErrorMsg> _errors; // Contains all compilation errors |
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private ArrayList<ErrorMsg> _warnings; // Contains all compilation warnings |
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private Map<String, String> _instructionClasses; // Maps instructions to classes |
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private Map<String, String[]> _instructionAttrs; // reqd and opt attrs |
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private Map<String, QName> _qNames; |
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private Map<String, Map<String, QName>> _namespaces; |
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private QName _useAttributeSets; |
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private QName _excludeResultPrefixes; |
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private QName _extensionElementPrefixes; |
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private Map<String, Object> _variableScope; |
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private Stylesheet _currentStylesheet; |
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private SymbolTable _symbolTable; // Maps QNames to syntax-tree nodes |
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private Output _output; |
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private Template _template; // Reference to the template being parsed. |
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private boolean _rootNamespaceDef; // Used for validity check |
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private SyntaxTreeNode _root; |
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private String _target; |
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private int _currentImportPrecedence; |
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private boolean _overrideDefaultParser; |
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// flag indicates whether there's an user's ErrorListener |
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private boolean _hasUserErrListener; |
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public Parser(XSLTC xsltc, boolean useOverrideDefaultParser, boolean hasUserErrListener) { |
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_xsltc = xsltc; |
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_overrideDefaultParser = useOverrideDefaultParser; |
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_hasUserErrListener = hasUserErrListener; |
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} |
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111 |
public void init() { |
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_qNames = new HashMap<>(512); |
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_namespaces = new HashMap<>(); |
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114 |
_instructionClasses = new HashMap<>(); |
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115 |
_instructionAttrs = new HashMap<>(); |
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116 |
_variableScope = new HashMap<>(); |
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_template = null; |
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_errors = new ArrayList<>(); |
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_warnings = new ArrayList<>(); |
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_symbolTable = new SymbolTable(); |
121 |
_xpathParser = new XPathParser(this); |
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_currentStylesheet = null; |
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_output = null; |
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_root = null; |
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_rootNamespaceDef = false; |
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_currentImportPrecedence = 1; |
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initStdClasses(); |
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initInstructionAttrs(); |
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initExtClasses(); |
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initSymbolTable(); |
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_useAttributeSets = |
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getQName(XSLT_URI, XSL, "use-attribute-sets"); |
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_excludeResultPrefixes = |
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getQName(XSLT_URI, XSL, "exclude-result-prefixes"); |
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_extensionElementPrefixes = |
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getQName(XSLT_URI, XSL, "extension-element-prefixes"); |
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} |
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public void setOutput(Output output) { |
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if (_output != null) { |
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if (_output.getImportPrecedence() <= output.getImportPrecedence()) { |
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output.mergeOutput(_output); |
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_output.disable(); |
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_output = output; |
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} |
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else { |
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output.disable(); |
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} |
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} |
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else { |
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_output = output; |
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} |
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} |
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public Output getOutput() { |
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return _output; |
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} |
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161 |
public Properties getOutputProperties() { |
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return getTopLevelStylesheet().getOutputProperties(); |
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} |
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public void addVariable(Variable var) { |
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addVariableOrParam(var); |
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} |
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168 |
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169 |
public void addParameter(Param param) { |
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addVariableOrParam(param); |
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} |
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173 |
private void addVariableOrParam(VariableBase var) { |
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Object existing = _variableScope.get(var.getName().getStringRep()); |
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if (existing != null) { |
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if (existing instanceof Stack) { |
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@SuppressWarnings("unchecked") |
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Stack<VariableBase> stack = (Stack<VariableBase>)existing; |
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stack.push(var); |
180 |
} |
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else if (existing instanceof VariableBase) { |
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Stack<VariableBase> stack = new Stack<>(); |
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stack.push((VariableBase)existing); |
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stack.push(var); |
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_variableScope.put(var.getName().getStringRep(), stack); |
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} |
187 |
} |
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else { |
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_variableScope.put(var.getName().getStringRep(), var); |
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} |
191 |
} |
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public void removeVariable(QName name) { |
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Object existing = _variableScope.get(name.getStringRep()); |
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if (existing instanceof Stack) { |
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@SuppressWarnings("unchecked") |
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Stack<VariableBase> stack = (Stack<VariableBase>)existing; |
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if (!stack.isEmpty()) stack.pop(); |
199 |
if (!stack.isEmpty()) return; |
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} |
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_variableScope.remove(name.getStringRep()); |
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} |
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204 |
public VariableBase lookupVariable(QName name) { |
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Object existing = _variableScope.get(name.getStringRep()); |
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if (existing instanceof VariableBase) { |
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return (VariableBase)existing; |
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} |
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else if (existing instanceof Stack) { |
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@SuppressWarnings("unchecked") |
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Stack<VariableBase> stack = (Stack<VariableBase>)existing; |
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return stack.peek(); |
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} |
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return null; |
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} |
216 |
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217 |
public void setXSLTC(XSLTC xsltc) { |
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218 |
_xsltc = xsltc; |
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} |
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221 |
public XSLTC getXSLTC() { |
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return _xsltc; |
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} |
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public int getCurrentImportPrecedence() { |
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return _currentImportPrecedence; |
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} |
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229 |
public int getNextImportPrecedence() { |
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return ++_currentImportPrecedence; |
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} |
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public void setCurrentStylesheet(Stylesheet stylesheet) { |
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_currentStylesheet = stylesheet; |
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} |
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237 |
public Stylesheet getCurrentStylesheet() { |
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return _currentStylesheet; |
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} |
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241 |
public Stylesheet getTopLevelStylesheet() { |
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return _xsltc.getStylesheet(); |
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} |
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245 |
public QName getQNameSafe(final String stringRep) { |
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246 |
// parse and retrieve namespace |
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247 |
final int colon = stringRep.lastIndexOf(':'); |
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248 |
if (colon != -1) { |
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249 |
final String prefix = stringRep.substring(0, colon); |
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250 |
final String localname = stringRep.substring(colon + 1); |
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251 |
String namespace = null; |
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252 |
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253 |
// Get the namespace uri from the symbol table |
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254 |
if (prefix.equals(XMLNS_PREFIX) == false) { |
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namespace = _symbolTable.lookupNamespace(prefix); |
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256 |
if (namespace == null) namespace = EMPTYSTRING; |
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257 |
} |
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258 |
return getQName(namespace, prefix, localname); |
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259 |
} |
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260 |
else { |
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261 |
final String uri = stringRep.equals(XMLNS_PREFIX) ? null |
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262 |
: _symbolTable.lookupNamespace(EMPTYSTRING); |
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263 |
return getQName(uri, null, stringRep); |
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264 |
} |
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265 |
} |
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266 |
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267 |
public QName getQName(final String stringRep) { |
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268 |
return getQName(stringRep, true, false); |
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269 |
} |
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270 |
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271 |
public QName getQNameIgnoreDefaultNs(final String stringRep) { |
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272 |
return getQName(stringRep, true, true); |
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273 |
} |
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274 |
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275 |
public QName getQName(final String stringRep, boolean reportError) { |
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276 |
return getQName(stringRep, reportError, false); |
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277 |
} |
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278 |
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279 |
private QName getQName(final String stringRep, boolean reportError, |
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280 |
boolean ignoreDefaultNs) |
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281 |
{ |
|
282 |
// parse and retrieve namespace |
|
283 |
final int colon = stringRep.lastIndexOf(':'); |
|
284 |
if (colon != -1) { |
|
285 |
final String prefix = stringRep.substring(0, colon); |
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286 |
final String localname = stringRep.substring(colon + 1); |
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287 |
String namespace = null; |
|
288 |
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289 |
// Get the namespace uri from the symbol table |
|
290 |
if (prefix.equals(XMLNS_PREFIX) == false) { |
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291 |
namespace = _symbolTable.lookupNamespace(prefix); |
|
292 |
if (namespace == null && reportError) { |
|
293 |
final int line = getLineNumber(); |
|
294 |
ErrorMsg err = new ErrorMsg(ErrorMsg.NAMESPACE_UNDEF_ERR, |
|
295 |
line, prefix); |
|
296 |
reportError(ERROR, err); |
|
297 |
} |
|
298 |
} |
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299 |
return getQName(namespace, prefix, localname); |
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300 |
} |
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301 |
else { |
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302 |
if (stringRep.equals(XMLNS_PREFIX)) { |
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303 |
ignoreDefaultNs = true; |
|
304 |
} |
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305 |
final String defURI = ignoreDefaultNs ? null |
|
306 |
: _symbolTable.lookupNamespace(EMPTYSTRING); |
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307 |
return getQName(defURI, null, stringRep); |
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308 |
} |
|
309 |
} |
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310 |
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311 |
public QName getQName(String namespace, String prefix, String localname) { |
|
312 |
if (namespace == null || namespace.equals(EMPTYSTRING)) { |
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QName name = _qNames.get(localname); |
6 | 314 |
if (name == null) { |
315 |
name = new QName(null, prefix, localname); |
|
316 |
_qNames.put(localname, name); |
|
317 |
} |
|
318 |
return name; |
|
319 |
} |
|
320 |
else { |
|
33349 | 321 |
Map<String, QName> space = _namespaces.get(namespace); |
12458 | 322 |
String lexicalQName = |
323 |
(prefix == null || prefix.length() == 0) |
|
324 |
? localname |
|
325 |
: (prefix + ':' + localname); |
|
326 |
||
6 | 327 |
if (space == null) { |
328 |
final QName name = new QName(namespace, prefix, localname); |
|
33349 | 329 |
_namespaces.put(namespace, space = new HashMap<>()); |
12458 | 330 |
space.put(lexicalQName, name); |
6 | 331 |
return name; |
332 |
} |
|
333 |
else { |
|
33349 | 334 |
QName name = space.get(lexicalQName); |
6 | 335 |
if (name == null) { |
336 |
name = new QName(namespace, prefix, localname); |
|
12458 | 337 |
space.put(lexicalQName, name); |
6 | 338 |
} |
339 |
return name; |
|
340 |
} |
|
341 |
} |
|
342 |
} |
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343 |
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344 |
public QName getQName(String scope, String name) { |
|
345 |
return getQName(scope + name); |
|
346 |
} |
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347 |
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348 |
public QName getQName(QName scope, QName name) { |
|
349 |
return getQName(scope.toString() + name.toString()); |
|
350 |
} |
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351 |
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352 |
public QName getUseAttributeSets() { |
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353 |
return _useAttributeSets; |
|
354 |
} |
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355 |
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356 |
public QName getExtensionElementPrefixes() { |
|
357 |
return _extensionElementPrefixes; |
|
358 |
} |
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359 |
||
360 |
public QName getExcludeResultPrefixes() { |
|
361 |
return _excludeResultPrefixes; |
|
362 |
} |
|
363 |
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364 |
/** |
|
365 |
* Create an instance of the <code>Stylesheet</code> class, |
|
366 |
* and then parse, typecheck and compile the instance. |
|
367 |
* Must be called after <code>parse()</code>. |
|
368 |
*/ |
|
369 |
public Stylesheet makeStylesheet(SyntaxTreeNode element) |
|
370 |
throws CompilerException { |
|
371 |
try { |
|
372 |
Stylesheet stylesheet; |
|
373 |
||
374 |
if (element instanceof Stylesheet) { |
|
375 |
stylesheet = (Stylesheet)element; |
|
376 |
} |
|
377 |
else { |
|
378 |
stylesheet = new Stylesheet(); |
|
379 |
stylesheet.setSimplified(); |
|
380 |
stylesheet.addElement(element); |
|
381 |
stylesheet.setAttributes((AttributesImpl) element.getAttributes()); |
|
382 |
||
383 |
// Map the default NS if not already defined |
|
384 |
if (element.lookupNamespace(EMPTYSTRING) == null) { |
|
385 |
element.addPrefixMapping(EMPTYSTRING, EMPTYSTRING); |
|
386 |
} |
|
387 |
} |
|
388 |
stylesheet.setParser(this); |
|
389 |
return stylesheet; |
|
390 |
} |
|
391 |
catch (ClassCastException e) { |
|
392 |
ErrorMsg err = new ErrorMsg(ErrorMsg.NOT_STYLESHEET_ERR, element); |
|
393 |
throw new CompilerException(err.toString()); |
|
394 |
} |
|
395 |
} |
|
396 |
||
397 |
/** |
|
398 |
* Instanciates a SAX2 parser and generate the AST from the input. |
|
399 |
*/ |
|
400 |
public void createAST(Stylesheet stylesheet) { |
|
401 |
try { |
|
402 |
if (stylesheet != null) { |
|
403 |
stylesheet.parseContents(this); |
|
33349 | 404 |
final Iterator<SyntaxTreeNode> elements = stylesheet.elements(); |
405 |
while (elements.hasNext()) { |
|
39909
00e4298ae168
8162598: XSLTC transformer swallows empty namespace declaration which is needed to undeclare default namespace
clanger
parents:
39907
diff
changeset
|
406 |
SyntaxTreeNode child = elements.next(); |
6 | 407 |
if (child instanceof Text) { |
408 |
final int l = getLineNumber(); |
|
409 |
ErrorMsg err = |
|
410 |
new ErrorMsg(ErrorMsg.ILLEGAL_TEXT_NODE_ERR,l,null); |
|
411 |
reportError(ERROR, err); |
|
412 |
} |
|
413 |
} |
|
414 |
if (!errorsFound()) { |
|
415 |
stylesheet.typeCheck(_symbolTable); |
|
416 |
} |
|
417 |
} |
|
418 |
} |
|
419 |
catch (TypeCheckError e) { |
|
16953 | 420 |
reportError(ERROR, new ErrorMsg(ErrorMsg.JAXP_COMPILE_ERR, e)); |
6 | 421 |
} |
422 |
} |
|
423 |
||
424 |
/** |
|
425 |
* Parses a stylesheet and builds the internal abstract syntax tree |
|
426 |
* @param reader A SAX2 SAXReader (parser) |
|
427 |
* @param input A SAX2 InputSource can be passed to a SAX reader |
|
428 |
* @return The root of the abstract syntax tree |
|
429 |
*/ |
|
430 |
public SyntaxTreeNode parse(XMLReader reader, InputSource input) { |
|
431 |
try { |
|
432 |
// Parse the input document and build the abstract syntax tree |
|
433 |
reader.setContentHandler(this); |
|
55742
6e1161923897
8157830: Errors in XSLT stylesheet are not dispatched correctly to ErrorListener
joehw
parents:
48577
diff
changeset
|
434 |
if (_hasUserErrListener) { |
6e1161923897
8157830: Errors in XSLT stylesheet are not dispatched correctly to ErrorListener
joehw
parents:
48577
diff
changeset
|
435 |
// Set a ErrorHandler proxy to pass any parsing error on to be handled |
6e1161923897
8157830: Errors in XSLT stylesheet are not dispatched correctly to ErrorListener
joehw
parents:
48577
diff
changeset
|
436 |
// by the user's ErrorListener |
6e1161923897
8157830: Errors in XSLT stylesheet are not dispatched correctly to ErrorListener
joehw
parents:
48577
diff
changeset
|
437 |
reader.setErrorHandler(new ErrorHandlerProxy()); |
6e1161923897
8157830: Errors in XSLT stylesheet are not dispatched correctly to ErrorListener
joehw
parents:
48577
diff
changeset
|
438 |
} |
6 | 439 |
reader.parse(input); |
440 |
// Find the start of the stylesheet within the tree |
|
47712 | 441 |
return getStylesheet(_root); |
6 | 442 |
} |
443 |
catch (IOException e) { |
|
444 |
if (_xsltc.debug()) e.printStackTrace(); |
|
16953 | 445 |
reportError(ERROR,new ErrorMsg(ErrorMsg.JAXP_COMPILE_ERR, e)); |
6 | 446 |
} |
447 |
catch (SAXException e) { |
|
448 |
Throwable ex = e.getException(); |
|
449 |
if (_xsltc.debug()) { |
|
450 |
e.printStackTrace(); |
|
451 |
if (ex != null) ex.printStackTrace(); |
|
452 |
} |
|
16953 | 453 |
reportError(ERROR, new ErrorMsg(ErrorMsg.JAXP_COMPILE_ERR, e)); |
6 | 454 |
} |
455 |
catch (CompilerException e) { |
|
456 |
if (_xsltc.debug()) e.printStackTrace(); |
|
16953 | 457 |
reportError(ERROR, new ErrorMsg(ErrorMsg.JAXP_COMPILE_ERR, e)); |
6 | 458 |
} |
459 |
catch (Exception e) { |
|
460 |
if (_xsltc.debug()) e.printStackTrace(); |
|
16953 | 461 |
reportError(ERROR, new ErrorMsg(ErrorMsg.JAXP_COMPILE_ERR, e)); |
6 | 462 |
} |
463 |
return null; |
|
464 |
} |
|
465 |
||
466 |
/** |
|
467 |
* Parses a stylesheet and builds the internal abstract syntax tree |
|
468 |
* @param input A SAX2 InputSource can be passed to a SAX reader |
|
469 |
* @return The root of the abstract syntax tree |
|
470 |
*/ |
|
471 |
public SyntaxTreeNode parse(InputSource input) { |
|
472 |
try { |
|
48577 | 473 |
final XMLReader reader = JdkXmlUtils.getXMLReader(_overrideDefaultParser, |
474 |
_xsltc.isSecureProcessing()); |
|
6 | 475 |
|
48577 | 476 |
JdkXmlUtils.setXMLReaderPropertyIfSupport(reader, XMLConstants.ACCESS_EXTERNAL_DTD, |
477 |
_xsltc.getProperty(XMLConstants.ACCESS_EXTERNAL_DTD), true); |
|
39907 | 478 |
|
18354
ce3ebc4a1aec
8016153: Property http://javax.xml.XMLConstants/property/accessExternalDTD is not recognized.
joehw
parents:
17534
diff
changeset
|
479 |
|
39907 | 480 |
boolean supportCatalog = true; |
481 |
boolean useCatalog = _xsltc.getFeature(JdkXmlFeatures.XmlFeature.USE_CATALOG); |
|
482 |
try { |
|
48577 | 483 |
reader.setFeature(JdkXmlUtils.USE_CATALOG, useCatalog); |
39907 | 484 |
} |
48577 | 485 |
catch (SAXNotRecognizedException | SAXNotSupportedException e) { |
39907 | 486 |
supportCatalog = false; |
487 |
} |
|
488 |
||
489 |
if (supportCatalog && useCatalog) { |
|
490 |
try { |
|
491 |
CatalogFeatures cf = (CatalogFeatures)_xsltc.getProperty(JdkXmlFeatures.CATALOG_FEATURES); |
|
48577 | 492 |
if (cf != null) { |
493 |
for (CatalogFeatures.Feature f : CatalogFeatures.Feature.values()) { |
|
494 |
reader.setProperty(f.getPropertyName(), cf.get(f)); |
|
495 |
} |
|
39907 | 496 |
} |
497 |
} catch (SAXNotRecognizedException e) { |
|
498 |
//shall not happen for internal settings |
|
499 |
} |
|
500 |
} |
|
501 |
||
35729
49f1515c5f5c
8144593: Suppress not recognized property/feature warning messages from SAXParser
aefimov
parents:
33349
diff
changeset
|
502 |
String lastProperty = ""; |
20968 | 503 |
try { |
504 |
XMLSecurityManager securityManager = |
|
505 |
(XMLSecurityManager)_xsltc.getProperty(XalanConstants.SECURITY_MANAGER); |
|
506 |
for (XMLSecurityManager.Limit limit : XMLSecurityManager.Limit.values()) { |
|
35729
49f1515c5f5c
8144593: Suppress not recognized property/feature warning messages from SAXParser
aefimov
parents:
33349
diff
changeset
|
507 |
lastProperty = limit.apiProperty(); |
49f1515c5f5c
8144593: Suppress not recognized property/feature warning messages from SAXParser
aefimov
parents:
33349
diff
changeset
|
508 |
reader.setProperty(lastProperty, securityManager.getLimitValueAsString(limit)); |
20968 | 509 |
} |
510 |
if (securityManager.printEntityCountInfo()) { |
|
35729
49f1515c5f5c
8144593: Suppress not recognized property/feature warning messages from SAXParser
aefimov
parents:
33349
diff
changeset
|
511 |
lastProperty = XalanConstants.JDK_ENTITY_COUNT_INFO; |
48577 | 512 |
reader.setProperty(XalanConstants.JDK_ENTITY_COUNT_INFO, XalanConstants.JDK_YES); |
20968 | 513 |
} |
514 |
} catch (SAXException se) { |
|
35729
49f1515c5f5c
8144593: Suppress not recognized property/feature warning messages from SAXParser
aefimov
parents:
33349
diff
changeset
|
515 |
XMLSecurityManager.printWarning(reader.getClass().getName(), lastProperty, se); |
20968 | 516 |
} |
517 |
||
42247
52fafb950d5a
8158619: Very large CDATA section in XML document causes OOME
joehw
parents:
41507
diff
changeset
|
518 |
// try setting other JDK-impl properties, ignore if not supported |
52fafb950d5a
8158619: Very large CDATA section in XML document causes OOME
joehw
parents:
41507
diff
changeset
|
519 |
JdkXmlUtils.setXMLReaderPropertyIfSupport(reader, JdkXmlUtils.CDATA_CHUNK_SIZE, |
52fafb950d5a
8158619: Very large CDATA section in XML document causes OOME
joehw
parents:
41507
diff
changeset
|
520 |
_xsltc.getProperty(JdkXmlUtils.CDATA_CHUNK_SIZE), false); |
52fafb950d5a
8158619: Very large CDATA section in XML document causes OOME
joehw
parents:
41507
diff
changeset
|
521 |
|
6 | 522 |
return(parse(reader, input)); |
523 |
} |
|
524 |
catch (SAXException e) { |
|
525 |
reportError(ERROR, new ErrorMsg(e.getMessage())); |
|
526 |
} |
|
527 |
return null; |
|
528 |
} |
|
529 |
||
530 |
public SyntaxTreeNode getDocumentRoot() { |
|
531 |
return _root; |
|
532 |
} |
|
533 |
||
534 |
private String _PImedia = null; |
|
535 |
private String _PItitle = null; |
|
536 |
private String _PIcharset = null; |
|
537 |
||
538 |
/** |
|
539 |
* Set the parameters to use to locate the correct <?xml-stylesheet ...?> |
|
540 |
* processing instruction in the case where the input document is an |
|
541 |
* XML document with one or more references to a stylesheet. |
|
542 |
* @param media The media attribute to be matched. May be null, in which |
|
543 |
* case the prefered templates will be used (i.e. alternate = no). |
|
544 |
* @param title The value of the title attribute to match. May be null. |
|
545 |
* @param charset The value of the charset attribute to match. May be null. |
|
546 |
*/ |
|
547 |
protected void setPIParameters(String media, String title, String charset) { |
|
548 |
_PImedia = media; |
|
549 |
_PItitle = title; |
|
550 |
_PIcharset = charset; |
|
551 |
} |
|
552 |
||
553 |
/** |
|
554 |
* Extracts the DOM for the stylesheet. In the case of an embedded |
|
555 |
* stylesheet, it extracts the DOM subtree corresponding to the |
|
556 |
* embedded stylesheet that has an 'id' attribute whose value is the |
|
557 |
* same as the value declared in the <?xml-stylesheet...?> processing |
|
558 |
* instruction (P.I.). In the xml-stylesheet P.I. the value is labeled |
|
559 |
* as the 'href' data of the P.I. The extracted DOM representing the |
|
560 |
* stylesheet is returned as an Element object. |
|
561 |
*/ |
|
562 |
private SyntaxTreeNode getStylesheet(SyntaxTreeNode root) |
|
563 |
throws CompilerException { |
|
564 |
||
565 |
// Assume that this is a pure XSL stylesheet if there is not |
|
566 |
// <?xml-stylesheet ....?> processing instruction |
|
567 |
if (_target == null) { |
|
568 |
if (!_rootNamespaceDef) { |
|
569 |
ErrorMsg msg = new ErrorMsg(ErrorMsg.MISSING_XSLT_URI_ERR); |
|
570 |
throw new CompilerException(msg.toString()); |
|
571 |
} |
|
572 |
return(root); |
|
573 |
} |
|
574 |
||
575 |
// Find the xsl:stylesheet or xsl:transform with this reference |
|
576 |
if (_target.charAt(0) == '#') { |
|
577 |
SyntaxTreeNode element = findStylesheet(root, _target.substring(1)); |
|
578 |
if (element == null) { |
|
579 |
ErrorMsg msg = new ErrorMsg(ErrorMsg.MISSING_XSLT_TARGET_ERR, |
|
580 |
_target, root); |
|
581 |
throw new CompilerException(msg.toString()); |
|
582 |
} |
|
583 |
return(element); |
|
584 |
} |
|
585 |
else { |
|
17534 | 586 |
try { |
587 |
String path = _target; |
|
588 |
if (path.indexOf(":")==-1) { |
|
589 |
path = "file:" + path; |
|
590 |
} |
|
591 |
path = SystemIDResolver.getAbsoluteURI(path); |
|
592 |
String accessError = SecuritySupport.checkAccess(path, |
|
20968 | 593 |
(String)_xsltc.getProperty(XMLConstants.ACCESS_EXTERNAL_STYLESHEET), |
17534 | 594 |
XalanConstants.ACCESS_EXTERNAL_ALL); |
595 |
if (accessError != null) { |
|
596 |
ErrorMsg msg = new ErrorMsg(ErrorMsg.ACCESSING_XSLT_TARGET_ERR, |
|
597 |
SecuritySupport.sanitizePath(_target), accessError, |
|
598 |
root); |
|
599 |
throw new CompilerException(msg.toString()); |
|
600 |
} |
|
601 |
} catch (IOException ex) { |
|
602 |
throw new CompilerException(ex); |
|
603 |
} |
|
604 |
||
6 | 605 |
return(loadExternalStylesheet(_target)); |
606 |
} |
|
607 |
} |
|
608 |
||
609 |
/** |
|
610 |
* Find a Stylesheet element with a specific ID attribute value. |
|
611 |
* This method is used to find a Stylesheet node that is referred |
|
612 |
* in a <?xml-stylesheet ... ?> processing instruction. |
|
613 |
*/ |
|
614 |
private SyntaxTreeNode findStylesheet(SyntaxTreeNode root, String href) { |
|
615 |
||
616 |
if (root == null) return null; |
|
617 |
||
618 |
if (root instanceof Stylesheet) { |
|
619 |
String id = root.getAttribute("id"); |
|
620 |
if (id.equals(href)) return root; |
|
621 |
} |
|
33349 | 622 |
List<SyntaxTreeNode> children = root.getContents(); |
6 | 623 |
if (children != null) { |
624 |
final int count = children.size(); |
|
625 |
for (int i = 0; i < count; i++) { |
|
33349 | 626 |
SyntaxTreeNode child = children.get(i); |
6 | 627 |
SyntaxTreeNode node = findStylesheet(child, href); |
628 |
if (node != null) return node; |
|
629 |
} |
|
630 |
} |
|
631 |
return null; |
|
632 |
} |
|
633 |
||
634 |
/** |
|
635 |
* For embedded stylesheets: Load an external file with stylesheet |
|
636 |
*/ |
|
637 |
private SyntaxTreeNode loadExternalStylesheet(String location) |
|
638 |
throws CompilerException { |
|
639 |
||
640 |
InputSource source; |
|
641 |
||
642 |
// Check if the location is URL or a local file |
|
643 |
if ((new File(location)).exists()) |
|
644 |
source = new InputSource("file:"+location); |
|
645 |
else |
|
646 |
source = new InputSource(location); |
|
647 |
||
47712 | 648 |
SyntaxTreeNode external = parse(source); |
6 | 649 |
return(external); |
650 |
} |
|
651 |
||
652 |
private void initAttrTable(String elementName, String[] attrs) { |
|
33349 | 653 |
_instructionAttrs.put(getQName(XSLT_URI, XSL, elementName).getStringRep(), |
6 | 654 |
attrs); |
655 |
} |
|
656 |
||
657 |
private void initInstructionAttrs() { |
|
658 |
initAttrTable("template", |
|
659 |
new String[] {"match", "name", "priority", "mode"}); |
|
660 |
initAttrTable("stylesheet", |
|
661 |
new String[] {"id", "version", "extension-element-prefixes", |
|
662 |
"exclude-result-prefixes"}); |
|
663 |
initAttrTable("transform", |
|
664 |
new String[] {"id", "version", "extension-element-prefixes", |
|
665 |
"exclude-result-prefixes"}); |
|
666 |
initAttrTable("text", new String[] {"disable-output-escaping"}); |
|
667 |
initAttrTable("if", new String[] {"test"}); |
|
668 |
initAttrTable("choose", new String[] {}); |
|
669 |
initAttrTable("when", new String[] {"test"}); |
|
670 |
initAttrTable("otherwise", new String[] {}); |
|
671 |
initAttrTable("for-each", new String[] {"select"}); |
|
672 |
initAttrTable("message", new String[] {"terminate"}); |
|
673 |
initAttrTable("number", |
|
674 |
new String[] {"level", "count", "from", "value", "format", "lang", |
|
675 |
"letter-value", "grouping-separator", "grouping-size"}); |
|
676 |
initAttrTable("comment", new String[] {}); |
|
677 |
initAttrTable("copy", new String[] {"use-attribute-sets"}); |
|
678 |
initAttrTable("copy-of", new String[] {"select"}); |
|
679 |
initAttrTable("param", new String[] {"name", "select"}); |
|
680 |
initAttrTable("with-param", new String[] {"name", "select"}); |
|
681 |
initAttrTable("variable", new String[] {"name", "select"}); |
|
682 |
initAttrTable("output", |
|
683 |
new String[] {"method", "version", "encoding", |
|
684 |
"omit-xml-declaration", "standalone", "doctype-public", |
|
685 |
"doctype-system", "cdata-section-elements", "indent", |
|
686 |
"media-type"}); |
|
687 |
initAttrTable("sort", |
|
688 |
new String[] {"select", "order", "case-order", "lang", "data-type"}); |
|
689 |
initAttrTable("key", new String[] {"name", "match", "use"}); |
|
690 |
initAttrTable("fallback", new String[] {}); |
|
691 |
initAttrTable("attribute", new String[] {"name", "namespace"}); |
|
692 |
initAttrTable("attribute-set", |
|
693 |
new String[] {"name", "use-attribute-sets"}); |
|
694 |
initAttrTable("value-of", |
|
695 |
new String[] {"select", "disable-output-escaping"}); |
|
696 |
initAttrTable("element", |
|
697 |
new String[] {"name", "namespace", "use-attribute-sets"}); |
|
698 |
initAttrTable("call-template", new String[] {"name"}); |
|
699 |
initAttrTable("apply-templates", new String[] {"select", "mode"}); |
|
700 |
initAttrTable("apply-imports", new String[] {}); |
|
701 |
initAttrTable("decimal-format", |
|
702 |
new String[] {"name", "decimal-separator", "grouping-separator", |
|
703 |
"infinity", "minus-sign", "NaN", "percent", "per-mille", |
|
704 |
"zero-digit", "digit", "pattern-separator"}); |
|
705 |
initAttrTable("import", new String[] {"href"}); |
|
706 |
initAttrTable("include", new String[] {"href"}); |
|
707 |
initAttrTable("strip-space", new String[] {"elements"}); |
|
708 |
initAttrTable("preserve-space", new String[] {"elements"}); |
|
709 |
initAttrTable("processing-instruction", new String[] {"name"}); |
|
710 |
initAttrTable("namespace-alias", |
|
711 |
new String[] {"stylesheet-prefix", "result-prefix"}); |
|
712 |
} |
|
713 |
||
714 |
/** |
|
33349 | 715 |
* Initialize the _instructionClasses map, which maps XSL element |
6 | 716 |
* names to Java classes in this package. |
717 |
*/ |
|
718 |
private void initStdClasses() { |
|
719 |
initStdClass("template", "Template"); |
|
720 |
initStdClass("stylesheet", "Stylesheet"); |
|
721 |
initStdClass("transform", "Stylesheet"); |
|
722 |
initStdClass("text", "Text"); |
|
723 |
initStdClass("if", "If"); |
|
724 |
initStdClass("choose", "Choose"); |
|
725 |
initStdClass("when", "When"); |
|
726 |
initStdClass("otherwise", "Otherwise"); |
|
727 |
initStdClass("for-each", "ForEach"); |
|
728 |
initStdClass("message", "Message"); |
|
729 |
initStdClass("number", "Number"); |
|
730 |
initStdClass("comment", "Comment"); |
|
731 |
initStdClass("copy", "Copy"); |
|
732 |
initStdClass("copy-of", "CopyOf"); |
|
733 |
initStdClass("param", "Param"); |
|
734 |
initStdClass("with-param", "WithParam"); |
|
735 |
initStdClass("variable", "Variable"); |
|
736 |
initStdClass("output", "Output"); |
|
737 |
initStdClass("sort", "Sort"); |
|
738 |
initStdClass("key", "Key"); |
|
739 |
initStdClass("fallback", "Fallback"); |
|
740 |
initStdClass("attribute", "XslAttribute"); |
|
741 |
initStdClass("attribute-set", "AttributeSet"); |
|
742 |
initStdClass("value-of", "ValueOf"); |
|
743 |
initStdClass("element", "XslElement"); |
|
744 |
initStdClass("call-template", "CallTemplate"); |
|
745 |
initStdClass("apply-templates", "ApplyTemplates"); |
|
746 |
initStdClass("apply-imports", "ApplyImports"); |
|
747 |
initStdClass("decimal-format", "DecimalFormatting"); |
|
748 |
initStdClass("import", "Import"); |
|
749 |
initStdClass("include", "Include"); |
|
750 |
initStdClass("strip-space", "Whitespace"); |
|
751 |
initStdClass("preserve-space", "Whitespace"); |
|
752 |
initStdClass("processing-instruction", "ProcessingInstruction"); |
|
753 |
initStdClass("namespace-alias", "NamespaceAlias"); |
|
754 |
} |
|
755 |
||
756 |
private void initStdClass(String elementName, String className) { |
|
33349 | 757 |
_instructionClasses.put(getQName(XSLT_URI, XSL, elementName).getStringRep(), |
6 | 758 |
COMPILER_PACKAGE + '.' + className); |
759 |
} |
|
760 |
||
761 |
public boolean elementSupported(String namespace, String localName) { |
|
33349 | 762 |
return(_instructionClasses.get(getQName(namespace, XSL, localName).getStringRep()) != null); |
6 | 763 |
} |
764 |
||
765 |
public boolean functionSupported(String fname) { |
|
766 |
return(_symbolTable.lookupPrimop(fname) != null); |
|
767 |
} |
|
768 |
||
769 |
private void initExtClasses() { |
|
770 |
initExtClass("output", "TransletOutput"); |
|
771 |
initExtClass(REDIRECT_URI, "write", "TransletOutput"); |
|
772 |
} |
|
773 |
||
774 |
private void initExtClass(String elementName, String className) { |
|
33349 | 775 |
_instructionClasses.put(getQName(TRANSLET_URI, TRANSLET, elementName).getStringRep(), |
6 | 776 |
COMPILER_PACKAGE + '.' + className); |
777 |
} |
|
778 |
||
779 |
private void initExtClass(String namespace, String elementName, String className) { |
|
33349 | 780 |
_instructionClasses.put(getQName(namespace, TRANSLET, elementName).getStringRep(), |
6 | 781 |
COMPILER_PACKAGE + '.' + className); |
782 |
} |
|
783 |
||
784 |
/** |
|
785 |
* Add primops and base functions to the symbol table. |
|
786 |
*/ |
|
39909
00e4298ae168
8162598: XSLTC transformer swallows empty namespace declaration which is needed to undeclare default namespace
clanger
parents:
39907
diff
changeset
|
787 |
@SuppressWarnings("unused") |
6 | 788 |
private void initSymbolTable() { |
789 |
MethodType I_V = new MethodType(Type.Int, Type.Void); |
|
790 |
MethodType I_R = new MethodType(Type.Int, Type.Real); |
|
791 |
MethodType I_S = new MethodType(Type.Int, Type.String); |
|
792 |
MethodType I_D = new MethodType(Type.Int, Type.NodeSet); |
|
793 |
MethodType R_I = new MethodType(Type.Real, Type.Int); |
|
794 |
MethodType R_V = new MethodType(Type.Real, Type.Void); |
|
795 |
MethodType R_R = new MethodType(Type.Real, Type.Real); |
|
796 |
MethodType R_D = new MethodType(Type.Real, Type.NodeSet); |
|
797 |
MethodType R_O = new MethodType(Type.Real, Type.Reference); |
|
798 |
MethodType I_I = new MethodType(Type.Int, Type.Int); |
|
799 |
MethodType D_O = new MethodType(Type.NodeSet, Type.Reference); |
|
800 |
MethodType D_V = new MethodType(Type.NodeSet, Type.Void); |
|
801 |
MethodType D_S = new MethodType(Type.NodeSet, Type.String); |
|
802 |
MethodType D_D = new MethodType(Type.NodeSet, Type.NodeSet); |
|
803 |
MethodType A_V = new MethodType(Type.Node, Type.Void); |
|
804 |
MethodType S_V = new MethodType(Type.String, Type.Void); |
|
805 |
MethodType S_S = new MethodType(Type.String, Type.String); |
|
806 |
MethodType S_A = new MethodType(Type.String, Type.Node); |
|
807 |
MethodType S_D = new MethodType(Type.String, Type.NodeSet); |
|
808 |
MethodType S_O = new MethodType(Type.String, Type.Reference); |
|
809 |
MethodType B_O = new MethodType(Type.Boolean, Type.Reference); |
|
810 |
MethodType B_V = new MethodType(Type.Boolean, Type.Void); |
|
811 |
MethodType B_B = new MethodType(Type.Boolean, Type.Boolean); |
|
812 |
MethodType B_S = new MethodType(Type.Boolean, Type.String); |
|
813 |
MethodType D_X = new MethodType(Type.NodeSet, Type.Object); |
|
814 |
MethodType R_RR = new MethodType(Type.Real, Type.Real, Type.Real); |
|
815 |
MethodType I_II = new MethodType(Type.Int, Type.Int, Type.Int); |
|
816 |
MethodType B_RR = new MethodType(Type.Boolean, Type.Real, Type.Real); |
|
817 |
MethodType B_II = new MethodType(Type.Boolean, Type.Int, Type.Int); |
|
818 |
MethodType S_SS = new MethodType(Type.String, Type.String, Type.String); |
|
819 |
MethodType S_DS = new MethodType(Type.String, Type.Real, Type.String); |
|
820 |
MethodType S_SR = new MethodType(Type.String, Type.String, Type.Real); |
|
821 |
MethodType O_SO = new MethodType(Type.Reference, Type.String, Type.Reference); |
|
822 |
||
823 |
MethodType D_SS = |
|
824 |
new MethodType(Type.NodeSet, Type.String, Type.String); |
|
825 |
MethodType D_SD = |
|
826 |
new MethodType(Type.NodeSet, Type.String, Type.NodeSet); |
|
827 |
MethodType B_BB = |
|
828 |
new MethodType(Type.Boolean, Type.Boolean, Type.Boolean); |
|
829 |
MethodType B_SS = |
|
830 |
new MethodType(Type.Boolean, Type.String, Type.String); |
|
831 |
MethodType S_SD = |
|
832 |
new MethodType(Type.String, Type.String, Type.NodeSet); |
|
833 |
MethodType S_DSS = |
|
834 |
new MethodType(Type.String, Type.Real, Type.String, Type.String); |
|
835 |
MethodType S_SRR = |
|
836 |
new MethodType(Type.String, Type.String, Type.Real, Type.Real); |
|
837 |
MethodType S_SSS = |
|
838 |
new MethodType(Type.String, Type.String, Type.String, Type.String); |
|
839 |
||
840 |
/* |
|
841 |
* Standard functions: implemented but not in this table concat(). |
|
842 |
* When adding a new function make sure to uncomment |
|
843 |
* the corresponding line in <tt>FunctionAvailableCall</tt>. |
|
844 |
*/ |
|
845 |
||
846 |
// The following functions are inlined |
|
847 |
||
848 |
_symbolTable.addPrimop("current", A_V); |
|
849 |
_symbolTable.addPrimop("last", I_V); |
|
850 |
_symbolTable.addPrimop("position", I_V); |
|
851 |
_symbolTable.addPrimop("true", B_V); |
|
852 |
_symbolTable.addPrimop("false", B_V); |
|
853 |
_symbolTable.addPrimop("not", B_B); |
|
854 |
_symbolTable.addPrimop("name", S_V); |
|
855 |
_symbolTable.addPrimop("name", S_A); |
|
856 |
_symbolTable.addPrimop("generate-id", S_V); |
|
857 |
_symbolTable.addPrimop("generate-id", S_A); |
|
858 |
_symbolTable.addPrimop("ceiling", R_R); |
|
859 |
_symbolTable.addPrimop("floor", R_R); |
|
860 |
_symbolTable.addPrimop("round", R_R); |
|
861 |
_symbolTable.addPrimop("contains", B_SS); |
|
862 |
_symbolTable.addPrimop("number", R_O); |
|
863 |
_symbolTable.addPrimop("number", R_V); |
|
864 |
_symbolTable.addPrimop("boolean", B_O); |
|
865 |
_symbolTable.addPrimop("string", S_O); |
|
866 |
_symbolTable.addPrimop("string", S_V); |
|
867 |
_symbolTable.addPrimop("translate", S_SSS); |
|
868 |
_symbolTable.addPrimop("string-length", I_V); |
|
869 |
_symbolTable.addPrimop("string-length", I_S); |
|
870 |
_symbolTable.addPrimop("starts-with", B_SS); |
|
871 |
_symbolTable.addPrimop("format-number", S_DS); |
|
872 |
_symbolTable.addPrimop("format-number", S_DSS); |
|
873 |
_symbolTable.addPrimop("unparsed-entity-uri", S_S); |
|
874 |
_symbolTable.addPrimop("key", D_SS); |
|
875 |
_symbolTable.addPrimop("key", D_SD); |
|
876 |
_symbolTable.addPrimop("id", D_S); |
|
877 |
_symbolTable.addPrimop("id", D_D); |
|
878 |
_symbolTable.addPrimop("namespace-uri", S_V); |
|
879 |
_symbolTable.addPrimop("function-available", B_S); |
|
880 |
_symbolTable.addPrimop("element-available", B_S); |
|
881 |
_symbolTable.addPrimop("document", D_S); |
|
882 |
_symbolTable.addPrimop("document", D_V); |
|
883 |
||
884 |
// The following functions are implemented in the basis library |
|
885 |
_symbolTable.addPrimop("count", I_D); |
|
886 |
_symbolTable.addPrimop("sum", R_D); |
|
887 |
_symbolTable.addPrimop("local-name", S_V); |
|
888 |
_symbolTable.addPrimop("local-name", S_D); |
|
889 |
_symbolTable.addPrimop("namespace-uri", S_V); |
|
890 |
_symbolTable.addPrimop("namespace-uri", S_D); |
|
891 |
_symbolTable.addPrimop("substring", S_SR); |
|
892 |
_symbolTable.addPrimop("substring", S_SRR); |
|
893 |
_symbolTable.addPrimop("substring-after", S_SS); |
|
894 |
_symbolTable.addPrimop("substring-before", S_SS); |
|
895 |
_symbolTable.addPrimop("normalize-space", S_V); |
|
896 |
_symbolTable.addPrimop("normalize-space", S_S); |
|
897 |
_symbolTable.addPrimop("system-property", S_S); |
|
898 |
||
899 |
// Extensions |
|
900 |
_symbolTable.addPrimop("nodeset", D_O); |
|
901 |
_symbolTable.addPrimop("objectType", S_O); |
|
902 |
_symbolTable.addPrimop("cast", O_SO); |
|
903 |
||
904 |
// Operators +, -, *, /, % defined on real types. |
|
905 |
_symbolTable.addPrimop("+", R_RR); |
|
906 |
_symbolTable.addPrimop("-", R_RR); |
|
907 |
_symbolTable.addPrimop("*", R_RR); |
|
908 |
_symbolTable.addPrimop("/", R_RR); |
|
909 |
_symbolTable.addPrimop("%", R_RR); |
|
910 |
||
911 |
// Operators +, -, * defined on integer types. |
|
912 |
// Operators / and % are not defined on integers (may cause exception) |
|
913 |
_symbolTable.addPrimop("+", I_II); |
|
914 |
_symbolTable.addPrimop("-", I_II); |
|
915 |
_symbolTable.addPrimop("*", I_II); |
|
916 |
||
917 |
// Operators <, <= >, >= defined on real types. |
|
918 |
_symbolTable.addPrimop("<", B_RR); |
|
919 |
_symbolTable.addPrimop("<=", B_RR); |
|
920 |
_symbolTable.addPrimop(">", B_RR); |
|
921 |
_symbolTable.addPrimop(">=", B_RR); |
|
922 |
||
923 |
// Operators <, <= >, >= defined on int types. |
|
924 |
_symbolTable.addPrimop("<", B_II); |
|
925 |
_symbolTable.addPrimop("<=", B_II); |
|
926 |
_symbolTable.addPrimop(">", B_II); |
|
927 |
_symbolTable.addPrimop(">=", B_II); |
|
928 |
||
929 |
// Operators <, <= >, >= defined on boolean types. |
|
930 |
_symbolTable.addPrimop("<", B_BB); |
|
931 |
_symbolTable.addPrimop("<=", B_BB); |
|
932 |
_symbolTable.addPrimop(">", B_BB); |
|
933 |
_symbolTable.addPrimop(">=", B_BB); |
|
934 |
||
935 |
// Operators 'and' and 'or'. |
|
936 |
_symbolTable.addPrimop("or", B_BB); |
|
937 |
_symbolTable.addPrimop("and", B_BB); |
|
938 |
||
939 |
// Unary minus. |
|
940 |
_symbolTable.addPrimop("u-", R_R); |
|
941 |
_symbolTable.addPrimop("u-", I_I); |
|
942 |
} |
|
943 |
||
944 |
public SymbolTable getSymbolTable() { |
|
945 |
return _symbolTable; |
|
946 |
} |
|
947 |
||
948 |
public Template getTemplate() { |
|
949 |
return _template; |
|
950 |
} |
|
951 |
||
952 |
public void setTemplate(Template template) { |
|
953 |
_template = template; |
|
954 |
} |
|
955 |
||
956 |
private int _templateIndex = 0; |
|
957 |
||
958 |
public int getTemplateIndex() { |
|
959 |
return(_templateIndex++); |
|
960 |
} |
|
961 |
||
962 |
/** |
|
963 |
* Creates a new node in the abstract syntax tree. This node can be |
|
964 |
* o) a supported XSLT 1.0 element |
|
965 |
* o) an unsupported XSLT element (post 1.0) |
|
966 |
* o) a supported XSLT extension |
|
967 |
* o) an unsupported XSLT extension |
|
968 |
* o) a literal result element (not an XSLT element and not an extension) |
|
969 |
* Unsupported elements do not directly generate an error. We have to wait |
|
970 |
* until we have received all child elements of an unsupported element to |
|
971 |
* see if any <xsl:fallback> elements exist. |
|
972 |
*/ |
|
973 |
||
974 |
private boolean versionIsOne = true; |
|
975 |
||
976 |
public SyntaxTreeNode makeInstance(String uri, String prefix, |
|
977 |
String local, Attributes attributes) |
|
978 |
{ |
|
979 |
SyntaxTreeNode node = null; |
|
39909
00e4298ae168
8162598: XSLTC transformer swallows empty namespace declaration which is needed to undeclare default namespace
clanger
parents:
39907
diff
changeset
|
980 |
QName qname = getQName(uri, prefix, local); |
33349 | 981 |
String className = _instructionClasses.get(qname.getStringRep()); |
6 | 982 |
|
983 |
if (className != null) { |
|
984 |
try { |
|
39909
00e4298ae168
8162598: XSLTC transformer swallows empty namespace declaration which is needed to undeclare default namespace
clanger
parents:
39907
diff
changeset
|
985 |
final Class<?> clazz = ObjectFactory.findProviderClass(className, true); |
45853
bfa06be36a17
8181154: Fix lint warnings in JAXP repo: deprecation
joehw
parents:
42247
diff
changeset
|
986 |
node = (SyntaxTreeNode)clazz.getDeclaredConstructor().newInstance(); |
6 | 987 |
node.setQName(qname); |
988 |
node.setParser(this); |
|
989 |
if (_locator != null) { |
|
990 |
node.setLineNumber(getLineNumber()); |
|
991 |
} |
|
992 |
if (node instanceof Stylesheet) { |
|
993 |
_xsltc.setStylesheet((Stylesheet)node); |
|
994 |
} |
|
995 |
checkForSuperfluousAttributes(node, attributes); |
|
996 |
} |
|
997 |
catch (ClassNotFoundException e) { |
|
998 |
ErrorMsg err = new ErrorMsg(ErrorMsg.CLASS_NOT_FOUND_ERR, node); |
|
999 |
reportError(ERROR, err); |
|
1000 |
} |
|
1001 |
catch (Exception e) { |
|
1002 |
ErrorMsg err = new ErrorMsg(ErrorMsg.INTERNAL_ERR, |
|
1003 |
e.getMessage(), node); |
|
1004 |
reportError(FATAL, err); |
|
1005 |
} |
|
1006 |
} |
|
1007 |
else { |
|
1008 |
if (uri != null) { |
|
1009 |
// Check if the element belongs in our namespace |
|
1010 |
if (uri.equals(XSLT_URI)) { |
|
1011 |
node = new UnsupportedElement(uri, prefix, local, false); |
|
1012 |
UnsupportedElement element = (UnsupportedElement)node; |
|
1013 |
ErrorMsg msg = new ErrorMsg(ErrorMsg.UNSUPPORTED_XSL_ERR, |
|
1014 |
getLineNumber(),local); |
|
1015 |
element.setErrorMessage(msg); |
|
1016 |
if (versionIsOne) { |
|
1017 |
reportError(UNSUPPORTED,msg); |
|
1018 |
} |
|
1019 |
} |
|
1020 |
// Check if this is an XSLTC extension element |
|
1021 |
else if (uri.equals(TRANSLET_URI)) { |
|
1022 |
node = new UnsupportedElement(uri, prefix, local, true); |
|
1023 |
UnsupportedElement element = (UnsupportedElement)node; |
|
1024 |
ErrorMsg msg = new ErrorMsg(ErrorMsg.UNSUPPORTED_EXT_ERR, |
|
1025 |
getLineNumber(),local); |
|
1026 |
element.setErrorMessage(msg); |
|
1027 |
} |
|
1028 |
// Check if this is an extension of some other XSLT processor |
|
1029 |
else { |
|
1030 |
Stylesheet sheet = _xsltc.getStylesheet(); |
|
1031 |
if ((sheet != null) && (sheet.isExtension(uri))) { |
|
39909
00e4298ae168
8162598: XSLTC transformer swallows empty namespace declaration which is needed to undeclare default namespace
clanger
parents:
39907
diff
changeset
|
1032 |
if (sheet != _parentStack.peek()) { |
6 | 1033 |
node = new UnsupportedElement(uri, prefix, local, true); |
1034 |
UnsupportedElement elem = (UnsupportedElement)node; |
|
1035 |
ErrorMsg msg = |
|
1036 |
new ErrorMsg(ErrorMsg.UNSUPPORTED_EXT_ERR, |
|
1037 |
getLineNumber(), |
|
1038 |
prefix+":"+local); |
|
1039 |
elem.setErrorMessage(msg); |
|
1040 |
} |
|
1041 |
} |
|
1042 |
} |
|
1043 |
} |
|
1044 |
if (node == null) { |
|
1045 |
node = new LiteralElement(); |
|
1046 |
node.setLineNumber(getLineNumber()); |
|
1047 |
} |
|
1048 |
} |
|
1049 |
if ((node != null) && (node instanceof LiteralElement)) { |
|
1050 |
((LiteralElement)node).setQName(qname); |
|
1051 |
} |
|
1052 |
return(node); |
|
1053 |
} |
|
1054 |
||
1055 |
/** |
|
1056 |
* checks the list of attributes against a list of allowed attributes |
|
1057 |
* for a particular element node. |
|
1058 |
*/ |
|
1059 |
private void checkForSuperfluousAttributes(SyntaxTreeNode node, |
|
1060 |
Attributes attrs) |
|
1061 |
{ |
|
1062 |
QName qname = node.getQName(); |
|
1063 |
boolean isStylesheet = (node instanceof Stylesheet); |
|
33349 | 1064 |
String[] legal = _instructionAttrs.get(qname.getStringRep()); |
6 | 1065 |
if (versionIsOne && legal != null) { |
1066 |
int j; |
|
1067 |
final int n = attrs.getLength(); |
|
1068 |
||
1069 |
for (int i = 0; i < n; i++) { |
|
1070 |
final String attrQName = attrs.getQName(i); |
|
1071 |
||
1072 |
if (isStylesheet && attrQName.equals("version")) { |
|
1073 |
versionIsOne = attrs.getValue(i).equals("1.0"); |
|
1074 |
} |
|
1075 |
||
1076 |
// Ignore if special or if it has a prefix |
|
1077 |
if (attrQName.startsWith("xml") || |
|
1078 |
attrQName.indexOf(':') > 0) continue; |
|
1079 |
||
1080 |
for (j = 0; j < legal.length; j++) { |
|
1081 |
if (attrQName.equalsIgnoreCase(legal[j])) { |
|
1082 |
break; |
|
1083 |
} |
|
1084 |
} |
|
1085 |
if (j == legal.length) { |
|
1086 |
final ErrorMsg err = |
|
1087 |
new ErrorMsg(ErrorMsg.ILLEGAL_ATTRIBUTE_ERR, |
|
1088 |
attrQName, node); |
|
1089 |
// Workaround for the TCK failure ErrorListener.errorTests.error001.. |
|
1090 |
err.setWarningError(true); |
|
1091 |
reportError(WARNING, err); |
|
1092 |
} |
|
1093 |
} |
|
1094 |
} |
|
1095 |
} |
|
1096 |
||
1097 |
||
1098 |
/** |
|
1099 |
* Parse an XPath expression: |
|
1100 |
* @param parent - XSL element where the expression occured |
|
1101 |
* @param exp - textual representation of the expression |
|
1102 |
*/ |
|
1103 |
public Expression parseExpression(SyntaxTreeNode parent, String exp) { |
|
1104 |
return (Expression)parseTopLevel(parent, "<EXPRESSION>"+exp, null); |
|
1105 |
} |
|
1106 |
||
1107 |
/** |
|
1108 |
* Parse an XPath expression: |
|
1109 |
* @param parent - XSL element where the expression occured |
|
1110 |
* @param attr - name of this element's attribute to get expression from |
|
1111 |
* @param def - default expression (if the attribute was not found) |
|
1112 |
*/ |
|
1113 |
public Expression parseExpression(SyntaxTreeNode parent, |
|
1114 |
String attr, String def) { |
|
1115 |
// Get the textual representation of the expression (if any) |
|
1116 |
String exp = parent.getAttribute(attr); |
|
1117 |
// Use the default expression if none was found |
|
1118 |
if ((exp.length() == 0) && (def != null)) exp = def; |
|
1119 |
// Invoke the XPath parser |
|
1120 |
return (Expression)parseTopLevel(parent, "<EXPRESSION>"+exp, exp); |
|
1121 |
} |
|
1122 |
||
1123 |
/** |
|
1124 |
* Parse an XPath pattern: |
|
1125 |
* @param parent - XSL element where the pattern occured |
|
1126 |
* @param pattern - textual representation of the pattern |
|
1127 |
*/ |
|
1128 |
public Pattern parsePattern(SyntaxTreeNode parent, String pattern) { |
|
1129 |
return (Pattern)parseTopLevel(parent, "<PATTERN>"+pattern, pattern); |
|
1130 |
} |
|
1131 |
||
1132 |
/** |
|
1133 |
* Parse an XPath pattern: |
|
1134 |
* @param parent - XSL element where the pattern occured |
|
1135 |
* @param attr - name of this element's attribute to get pattern from |
|
1136 |
* @param def - default pattern (if the attribute was not found) |
|
1137 |
*/ |
|
1138 |
public Pattern parsePattern(SyntaxTreeNode parent, |
|
1139 |
String attr, String def) { |
|
1140 |
// Get the textual representation of the pattern (if any) |
|
1141 |
String pattern = parent.getAttribute(attr); |
|
1142 |
// Use the default pattern if none was found |
|
1143 |
if ((pattern.length() == 0) && (def != null)) pattern = def; |
|
1144 |
// Invoke the XPath parser |
|
1145 |
return (Pattern)parseTopLevel(parent, "<PATTERN>"+pattern, pattern); |
|
1146 |
} |
|
1147 |
||
1148 |
/** |
|
1149 |
* Parse an XPath expression or pattern using the generated XPathParser |
|
1150 |
* The method will return a Dummy node if the XPath parser fails. |
|
1151 |
*/ |
|
1152 |
private SyntaxTreeNode parseTopLevel(SyntaxTreeNode parent, String text, |
|
1153 |
String expression) { |
|
1154 |
int line = getLineNumber(); |
|
1155 |
||
1156 |
try { |
|
1157 |
_xpathParser.setScanner(new XPathLexer(new StringReader(text))); |
|
1158 |
Symbol result = _xpathParser.parse(expression, line); |
|
1159 |
if (result != null) { |
|
1160 |
final SyntaxTreeNode node = (SyntaxTreeNode)result.value; |
|
1161 |
if (node != null) { |
|
1162 |
node.setParser(this); |
|
1163 |
node.setParent(parent); |
|
1164 |
node.setLineNumber(line); |
|
1165 |
return node; |
|
1166 |
} |
|
1167 |
} |
|
1168 |
reportError(ERROR, new ErrorMsg(ErrorMsg.XPATH_PARSER_ERR, |
|
1169 |
expression, parent)); |
|
1170 |
} |
|
1171 |
catch (Exception e) { |
|
1172 |
if (_xsltc.debug()) e.printStackTrace(); |
|
1173 |
reportError(ERROR, new ErrorMsg(ErrorMsg.XPATH_PARSER_ERR, |
|
1174 |
expression, parent)); |
|
1175 |
} |
|
1176 |
||
1177 |
// Return a dummy pattern (which is an expression) |
|
1178 |
SyntaxTreeNode.Dummy.setParser(this); |
|
1179 |
return SyntaxTreeNode.Dummy; |
|
1180 |
} |
|
1181 |
||
1182 |
/************************ ERROR HANDLING SECTION ************************/ |
|
1183 |
||
1184 |
/** |
|
1185 |
* Returns true if there were any errors during compilation |
|
1186 |
*/ |
|
1187 |
public boolean errorsFound() { |
|
1188 |
return _errors.size() > 0; |
|
1189 |
} |
|
1190 |
||
1191 |
/** |
|
1192 |
* Prints all compile-time errors |
|
1193 |
*/ |
|
1194 |
public void printErrors() { |
|
1195 |
final int size = _errors.size(); |
|
1196 |
if (size > 0) { |
|
1197 |
System.err.println(new ErrorMsg(ErrorMsg.COMPILER_ERROR_KEY)); |
|
1198 |
for (int i = 0; i < size; i++) { |
|
39907 | 1199 |
System.err.println(" " + _errors.get(i)); |
6 | 1200 |
} |
1201 |
} |
|
1202 |
} |
|
1203 |
||
1204 |
/** |
|
1205 |
* Prints all compile-time warnings |
|
1206 |
*/ |
|
1207 |
public void printWarnings() { |
|
1208 |
final int size = _warnings.size(); |
|
1209 |
if (size > 0) { |
|
1210 |
System.err.println(new ErrorMsg(ErrorMsg.COMPILER_WARNING_KEY)); |
|
1211 |
for (int i = 0; i < size; i++) { |
|
39907 | 1212 |
System.err.println(" " + _warnings.get(i)); |
6 | 1213 |
} |
1214 |
} |
|
1215 |
} |
|
1216 |
||
1217 |
/** |
|
1218 |
* Common error/warning message handler |
|
1219 |
*/ |
|
1220 |
public void reportError(final int category, final ErrorMsg error) { |
|
1221 |
switch (category) { |
|
1222 |
case Constants.INTERNAL: |
|
1223 |
// Unexpected internal errors, such as null-ptr exceptions, etc. |
|
1224 |
// Immediately terminates compilation, no translet produced |
|
39907 | 1225 |
_errors.add(error); |
6 | 1226 |
break; |
1227 |
case Constants.UNSUPPORTED: |
|
1228 |
// XSLT elements that are not implemented and unsupported ext. |
|
1229 |
// Immediately terminates compilation, no translet produced |
|
39907 | 1230 |
_errors.add(error); |
6 | 1231 |
break; |
1232 |
case Constants.FATAL: |
|
1233 |
// Fatal error in the stylesheet input (parsing or content) |
|
1234 |
// Immediately terminates compilation, no translet produced |
|
39907 | 1235 |
_errors.add(error); |
6 | 1236 |
break; |
1237 |
case Constants.ERROR: |
|
1238 |
// Other error in the stylesheet input (parsing or content) |
|
1239 |
// Does not terminate compilation, no translet produced |
|
39907 | 1240 |
_errors.add(error); |
6 | 1241 |
break; |
1242 |
case Constants.WARNING: |
|
1243 |
// Other error in the stylesheet input (content errors only) |
|
1244 |
// Does not terminate compilation, a translet is produced |
|
39907 | 1245 |
_warnings.add(error); |
6 | 1246 |
break; |
1247 |
} |
|
1248 |
} |
|
1249 |
||
39907 | 1250 |
public ArrayList<ErrorMsg> getErrors() { |
6 | 1251 |
return _errors; |
1252 |
} |
|
1253 |
||
39907 | 1254 |
public ArrayList<ErrorMsg> getWarnings() { |
6 | 1255 |
return _warnings; |
1256 |
} |
|
1257 |
||
1258 |
/************************ SAX2 ContentHandler INTERFACE *****************/ |
|
1259 |
||
39909
00e4298ae168
8162598: XSLTC transformer swallows empty namespace declaration which is needed to undeclare default namespace
clanger
parents:
39907
diff
changeset
|
1260 |
private Stack<SyntaxTreeNode> _parentStack = null; |
33349 | 1261 |
private Map<String, String> _prefixMapping = null; |
6 | 1262 |
|
1263 |
/** |
|
1264 |
* SAX2: Receive notification of the beginning of a document. |
|
1265 |
*/ |
|
1266 |
public void startDocument() { |
|
1267 |
_root = null; |
|
1268 |
_target = null; |
|
1269 |
_prefixMapping = null; |
|
39909
00e4298ae168
8162598: XSLTC transformer swallows empty namespace declaration which is needed to undeclare default namespace
clanger
parents:
39907
diff
changeset
|
1270 |
_parentStack = new Stack<>(); |
6 | 1271 |
} |
1272 |
||
1273 |
/** |
|
1274 |
* SAX2: Receive notification of the end of a document. |
|
1275 |
*/ |
|
1276 |
public void endDocument() { } |
|
1277 |
||
1278 |
||
1279 |
/** |
|
1280 |
* SAX2: Begin the scope of a prefix-URI Namespace mapping. |
|
1281 |
* This has to be passed on to the symbol table! |
|
1282 |
*/ |
|
1283 |
public void startPrefixMapping(String prefix, String uri) { |
|
1284 |
if (_prefixMapping == null) { |
|
33349 | 1285 |
_prefixMapping = new HashMap<>(); |
6 | 1286 |
} |
1287 |
_prefixMapping.put(prefix, uri); |
|
1288 |
} |
|
1289 |
||
1290 |
/** |
|
1291 |
* SAX2: End the scope of a prefix-URI Namespace mapping. |
|
1292 |
* This has to be passed on to the symbol table! |
|
1293 |
*/ |
|
1294 |
public void endPrefixMapping(String prefix) { } |
|
1295 |
||
1296 |
/** |
|
1297 |
* SAX2: Receive notification of the beginning of an element. |
|
1298 |
* The parser may re-use the attribute list that we're passed so |
|
1299 |
* we clone the attributes in our own Attributes implementation |
|
1300 |
*/ |
|
1301 |
public void startElement(String uri, String localname, |
|
1302 |
String qname, Attributes attributes) |
|
1303 |
throws SAXException { |
|
1304 |
final int col = qname.lastIndexOf(':'); |
|
1305 |
final String prefix = (col == -1) ? null : qname.substring(0, col); |
|
1306 |
||
1307 |
SyntaxTreeNode element = makeInstance(uri, prefix, |
|
1308 |
localname, attributes); |
|
1309 |
if (element == null) { |
|
1310 |
ErrorMsg err = new ErrorMsg(ErrorMsg.ELEMENT_PARSE_ERR, |
|
1311 |
prefix+':'+localname); |
|
1312 |
throw new SAXException(err.toString()); |
|
1313 |
} |
|
1314 |
||
1315 |
// If this is the root element of the XML document we need to make sure |
|
1316 |
// that it contains a definition of the XSL namespace URI |
|
1317 |
if (_root == null) { |
|
1318 |
if ((_prefixMapping == null) || |
|
1319 |
(_prefixMapping.containsValue(Constants.XSLT_URI) == false)) |
|
1320 |
_rootNamespaceDef = false; |
|
1321 |
else |
|
1322 |
_rootNamespaceDef = true; |
|
1323 |
_root = element; |
|
1324 |
} |
|
1325 |
else { |
|
39909
00e4298ae168
8162598: XSLTC transformer swallows empty namespace declaration which is needed to undeclare default namespace
clanger
parents:
39907
diff
changeset
|
1326 |
SyntaxTreeNode parent = _parentStack.peek(); |
42247
52fafb950d5a
8158619: Very large CDATA section in XML document causes OOME
joehw
parents:
41507
diff
changeset
|
1327 |
|
41507
eee8855a6cc9
8058152: JDK accepts XSLT stylesheet having import element erroneously placed
joehw
parents:
39909
diff
changeset
|
1328 |
if (element.getClass().isAssignableFrom(Import.class) && |
eee8855a6cc9
8058152: JDK accepts XSLT stylesheet having import element erroneously placed
joehw
parents:
39909
diff
changeset
|
1329 |
parent.notTypeOf(Import.class)) { |
eee8855a6cc9
8058152: JDK accepts XSLT stylesheet having import element erroneously placed
joehw
parents:
39909
diff
changeset
|
1330 |
ErrorMsg err = new ErrorMsg(ErrorMsg.IMPORT_PRECEDE_OTHERS_ERR, |
eee8855a6cc9
8058152: JDK accepts XSLT stylesheet having import element erroneously placed
joehw
parents:
39909
diff
changeset
|
1331 |
prefix+':'+localname); |
eee8855a6cc9
8058152: JDK accepts XSLT stylesheet having import element erroneously placed
joehw
parents:
39909
diff
changeset
|
1332 |
throw new SAXException(err.toString()); |
eee8855a6cc9
8058152: JDK accepts XSLT stylesheet having import element erroneously placed
joehw
parents:
39909
diff
changeset
|
1333 |
} |
42247
52fafb950d5a
8158619: Very large CDATA section in XML document causes OOME
joehw
parents:
41507
diff
changeset
|
1334 |
|
6 | 1335 |
parent.addElement(element); |
1336 |
element.setParent(parent); |
|
1337 |
} |
|
1338 |
element.setAttributes(new AttributesImpl(attributes)); |
|
1339 |
element.setPrefixMapping(_prefixMapping); |
|
1340 |
||
1341 |
if (element instanceof Stylesheet) { |
|
1342 |
// Extension elements and excluded elements have to be |
|
1343 |
// handled at this point in order to correctly generate |
|
1344 |
// Fallback elements from <xsl:fallback>s. |
|
1345 |
getSymbolTable().setCurrentNode(element); |
|
12458 | 1346 |
((Stylesheet)element).declareExtensionPrefixes(this); |
6 | 1347 |
} |
1348 |
||
1349 |
_prefixMapping = null; |
|
1350 |
_parentStack.push(element); |
|
1351 |
} |
|
1352 |
||
1353 |
/** |
|
1354 |
* SAX2: Receive notification of the end of an element. |
|
1355 |
*/ |
|
1356 |
public void endElement(String uri, String localname, String qname) { |
|
1357 |
_parentStack.pop(); |
|
1358 |
} |
|
1359 |
||
1360 |
/** |
|
1361 |
* SAX2: Receive notification of character data. |
|
1362 |
*/ |
|
1363 |
public void characters(char[] ch, int start, int length) { |
|
1364 |
String string = new String(ch, start, length); |
|
39909
00e4298ae168
8162598: XSLTC transformer swallows empty namespace declaration which is needed to undeclare default namespace
clanger
parents:
39907
diff
changeset
|
1365 |
SyntaxTreeNode parent = _parentStack.peek(); |
6 | 1366 |
|
1367 |
if (string.length() == 0) return; |
|
1368 |
||
1369 |
// If this text occurs within an <xsl:text> element we append it |
|
1370 |
// as-is to the existing text element |
|
1371 |
if (parent instanceof Text) { |
|
1372 |
((Text)parent).setText(string); |
|
1373 |
return; |
|
1374 |
} |
|
1375 |
||
1376 |
// Ignore text nodes that occur directly under <xsl:stylesheet> |
|
1377 |
if (parent instanceof Stylesheet) return; |
|
1378 |
||
1379 |
SyntaxTreeNode bro = parent.lastChild(); |
|
1380 |
if ((bro != null) && (bro instanceof Text)) { |
|
1381 |
Text text = (Text)bro; |
|
1382 |
if (!text.isTextElement()) { |
|
1383 |
if ((length > 1) || ( ((int)ch[0]) < 0x100)) { |
|
1384 |
text.setText(string); |
|
1385 |
return; |
|
1386 |
} |
|
1387 |
} |
|
1388 |
} |
|
1389 |
||
1390 |
// Add it as a regular text node otherwise |
|
1391 |
parent.addElement(new Text(string)); |
|
1392 |
} |
|
1393 |
||
1394 |
private String getTokenValue(String token) { |
|
1395 |
final int start = token.indexOf('"'); |
|
1396 |
final int stop = token.lastIndexOf('"'); |
|
1397 |
return token.substring(start+1, stop); |
|
1398 |
} |
|
1399 |
||
1400 |
/** |
|
1401 |
* SAX2: Receive notification of a processing instruction. |
|
1402 |
* These require special handling for stylesheet PIs. |
|
1403 |
*/ |
|
1404 |
public void processingInstruction(String name, String value) { |
|
1405 |
// We only handle the <?xml-stylesheet ...?> PI |
|
1406 |
if ((_target == null) && (name.equals("xml-stylesheet"))) { |
|
1407 |
||
1408 |
String href = null; // URI of stylesheet found |
|
1409 |
String media = null; // Media of stylesheet found |
|
1410 |
String title = null; // Title of stylesheet found |
|
1411 |
String charset = null; // Charset of stylesheet found |
|
1412 |
||
1413 |
// Get the attributes from the processing instruction |
|
1414 |
StringTokenizer tokens = new StringTokenizer(value); |
|
1415 |
while (tokens.hasMoreElements()) { |
|
1416 |
String token = (String)tokens.nextElement(); |
|
1417 |
if (token.startsWith("href")) |
|
1418 |
href = getTokenValue(token); |
|
1419 |
else if (token.startsWith("media")) |
|
1420 |
media = getTokenValue(token); |
|
1421 |
else if (token.startsWith("title")) |
|
1422 |
title = getTokenValue(token); |
|
1423 |
else if (token.startsWith("charset")) |
|
1424 |
charset = getTokenValue(token); |
|
1425 |
} |
|
1426 |
||
1427 |
// Set the target to this PI's href if the parameters are |
|
1428 |
// null or match the corresponding attributes of this PI. |
|
1429 |
if ( ((_PImedia == null) || (_PImedia.equals(media))) && |
|
1430 |
((_PItitle == null) || (_PImedia.equals(title))) && |
|
1431 |
((_PIcharset == null) || (_PImedia.equals(charset))) ) { |
|
1432 |
_target = href; |
|
1433 |
} |
|
1434 |
} |
|
1435 |
} |
|
1436 |
||
1437 |
/** |
|
1438 |
* IGNORED - all ignorable whitespace is ignored |
|
1439 |
*/ |
|
1440 |
public void ignorableWhitespace(char[] ch, int start, int length) { } |
|
1441 |
||
1442 |
/** |
|
1443 |
* IGNORED - we do not have to do anything with skipped entities |
|
1444 |
*/ |
|
1445 |
public void skippedEntity(String name) { } |
|
1446 |
||
1447 |
/** |
|
1448 |
* Store the document locator to later retrieve line numbers of all |
|
1449 |
* elements from the stylesheet |
|
1450 |
*/ |
|
1451 |
public void setDocumentLocator(Locator locator) { |
|
1452 |
_locator = locator; |
|
1453 |
} |
|
1454 |
||
1455 |
/** |
|
1456 |
* Get the line number, or zero |
|
1457 |
* if there is no _locator. |
|
1458 |
*/ |
|
1459 |
private int getLineNumber() { |
|
1460 |
int line = 0; |
|
1461 |
if (_locator != null) |
|
1462 |
line = _locator.getLineNumber(); |
|
1463 |
return line; |
|
1464 |
} |
|
1465 |
||
1466 |
} |