diff options
Diffstat (limited to 'bundles/org.eclipse.wst.dtd.core/saxparser/org/eclipse/wst/dtd/core/internal/saxparser/DTDParser.java')
| -rw-r--r-- | bundles/org.eclipse.wst.dtd.core/saxparser/org/eclipse/wst/dtd/core/internal/saxparser/DTDParser.java | 768 |
1 files changed, 0 insertions, 768 deletions
diff --git a/bundles/org.eclipse.wst.dtd.core/saxparser/org/eclipse/wst/dtd/core/internal/saxparser/DTDParser.java b/bundles/org.eclipse.wst.dtd.core/saxparser/org/eclipse/wst/dtd/core/internal/saxparser/DTDParser.java deleted file mode 100644 index 84a66a9227..0000000000 --- a/bundles/org.eclipse.wst.dtd.core/saxparser/org/eclipse/wst/dtd/core/internal/saxparser/DTDParser.java +++ /dev/null @@ -1,768 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2001, 2006 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.wst.dtd.core.internal.saxparser; - -import java.io.StringReader; -import java.io.UnsupportedEncodingException; -import java.util.ArrayList; -import java.util.Enumeration; -import java.util.Hashtable; -import java.util.List; -import java.util.Stack; -import java.util.Vector; - -import javax.xml.parsers.SAXParser; -import javax.xml.parsers.SAXParserFactory; - -import org.eclipse.wst.common.uriresolver.internal.provisional.URIResolver; -import org.eclipse.wst.common.uriresolver.internal.provisional.URIResolverPlugin; -import org.eclipse.wst.common.uriresolver.internal.util.URIHelper; -import org.eclipse.wst.xml.core.internal.validation.core.LazyURLInputStream; -import org.xml.sax.ContentHandler; -import org.xml.sax.DTDHandler; -import org.xml.sax.ErrorHandler; -import org.xml.sax.InputSource; -import org.xml.sax.Locator; -import org.xml.sax.SAXException; -import org.xml.sax.SAXParseException; -import org.xml.sax.XMLReader; -import org.xml.sax.ext.DeclHandler; -import org.xml.sax.ext.LexicalHandler; -import org.xml.sax.helpers.DefaultHandler; - -public class DTDParser extends DefaultHandler implements ContentHandler, DTDHandler, ErrorHandler, DeclHandler, LexicalHandler { - private String contentString = ""; //$NON-NLS-1$ - private String declString = ""; //$NON-NLS-1$ - - /* Canonical output. */ - protected boolean canonical; - - protected XMLReader reader; - int entityDepth; - - // dmw 11/15 private field never read locally - // private Vector declElements; - private String comment = null; - private ErrorMessage errorMessage = null; - private List errorMessages = new ArrayList(); - private DeclNode previousDeclNode = null; - private DeclNode currentDeclNode = null; - private BaseNode lastBaseNode = null; - - private boolean entityEnd = false; - private int lineNumber; - - private DTD currentDTD = null; - private Vector dtdList = new Vector(); - - private Stack dtdStack = new Stack(); - private Stack peRefStack = new Stack(); - private Stack parsingPERefStack = new Stack(); - - private EntityPool entityPool = new EntityPool(); - private String expandedEntityValue = null; - private Hashtable elementPool = new Hashtable(); - - boolean parsingExternalPEReference = false; - protected boolean expandEntityReferences = true; - - private Locator locator = null; - - private Locator getLocator() { - return locator; - } - - public void setDocumentLocator(Locator locator) { - this.locator = locator; - } - - public DTDParser(boolean canonical) throws UnsupportedEncodingException { - this(null, canonical); - } - - protected DTDParser(String encoding, boolean canonical) throws UnsupportedEncodingException { - - if (encoding == null) - encoding = "UTF-8"; //$NON-NLS-1$ - - this.canonical = canonical; - try { - SAXParser sparser = SAXParserFactory.newInstance().newSAXParser(); - reader = sparser.getXMLReader(); - reader.setProperty("http://xml.org/sax/properties/declaration-handler", this); //$NON-NLS-1$ - reader.setProperty("http://xml.org/sax/properties/lexical-handler", this); //$NON-NLS-1$ - reader.setContentHandler(this); - reader.setDTDHandler(this); - reader.setErrorHandler(this); - reader.setEntityResolver(this); - } - catch (Exception e) { - e.printStackTrace(); - } - - } - - /* Prints the output from the SAX callbacks. */ - public void parse(String logicalURI) { - try { - // CS ensure that the physical URI is considered where streams are required - // and the logicalURI is used as the DTD's baseLocation - String physicalURI = URIResolverPlugin.createResolver().resolvePhysicalLocation("", "", logicalURI); //$NON-NLS-1$ //$NON-NLS-2$ - boolean isReadable = URIHelper.isReadableURI(physicalURI, true); - if (!isReadable) { - throw new Exception("DTD parse error. Can not read the specified URI : " + logicalURI); //$NON-NLS-1$ - } - String document = "<!DOCTYPE root SYSTEM \"" + logicalURI + "\"><root/>"; //$NON-NLS-1$ //$NON-NLS-2$ - entityDepth = 0; - currentDTD = new DTD(logicalURI); - InputSource inputSource = new InputSource(new StringReader(document)); - inputSource.setSystemId(logicalURI + ".xml"); //$NON-NLS-1$ - reader.parse(inputSource); - } - catch (SAXParseException se) { - if (currentDTD != null) - currentDTD.setIsExceptionDuringParse(true); - } - catch (Exception e) { - if (currentDTD != null) - currentDTD.setIsExceptionDuringParse(true); - } - - } - - /* - * @deprecated Entity references are always expanded. - */ - public void setExpandEntityReferences(boolean expandEntityReferences) { - this.expandEntityReferences = true; - } - - /* - * @deprecated Entity references are always expanded. - */ - public boolean getExpandEntityReferences() { - return expandEntityReferences; - } - - public Vector getDTDList() { - return dtdList; - } - - public Hashtable getElementPool() { - return elementPool; - } - - public EntityPool getEntityPool() { - return entityPool; - } - - public List getErrorMessages() { - return errorMessages; - } - - // - // DocumentHandler methods - // - - public void startDocument() { - } - - public void endDocument() { - } - - public void processingInstruction(String target, String data) { - } - - // - // DTDHandler methods - // - - public void unparsedEntityDecl(String name, String publicId, String systemId, String notationName) throws SAXException { - } - - public void notationDecl(String name, String publicId, String systemId) throws SAXException { - startDeclaration(DeclNode.NOTATION); - declString = "<!NOTATION"; //$NON-NLS-1$ - if (entityDepth == 1 || parsingExternalPEReference) { - String xs = " "; //$NON-NLS-1$ - xs += name; - if (publicId == null) - xs += " SYSTEM " + "\"" + systemId + "\""; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ - else - xs += " PUBLIC " + "\"" + publicId + "\" " + "\"" + systemId + "\""; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ - contentString += xs; - parseCurrentDeclaration(); - } - } - - // - // DeclHandler methods - // - - public void elementDecl(String name, String model) throws SAXException { - startDeclaration(DeclNode.ELEMENT); - declString = "<!ELEMENT"; //$NON-NLS-1$ - - // KB: With early versions of Xerces 2.x, startEntity("[dtd]") used to - // be called before this method - // so entityDepth was 1. Using JAXP changed that and startEntity() is - // not called back anymore. - // Because of this, we need to handle the case where entityDepth == 0 - // as well. - if (entityDepth == 0 || entityDepth == 1 || parsingExternalPEReference) - parseCurrentDeclarationHelper(name + " " + model); //$NON-NLS-1$ - } - - protected String attributeString = ""; //$NON-NLS-1$ - - public void attributeDecl(String eName, String aName, String type, String valueDefault, String value) throws SAXException { - startDeclaration(DeclNode.ATTLIST); - declString = "<!ATTLIST"; //$NON-NLS-1$ - - attributeString += " " + aName; //$NON-NLS-1$ - if (type != null) - attributeString += " " + type; //$NON-NLS-1$ - if (valueDefault != null) - attributeString += " " + valueDefault; //$NON-NLS-1$ - if (value != null) - attributeString += " '" + value + "'"; //$NON-NLS-1$ //$NON-NLS-2$ - - attributeString = eName + " " + attributeString + ">"; //$NON-NLS-1$ //$NON-NLS-2$ - parseCurrentDeclarationHelper(attributeString); - attributeString = ""; //$NON-NLS-1$ - } - - public void internalEntityDecl(String name, String value) throws SAXException { - startDeclaration(DeclNode.INTERNAL_ENTITY); - declString = "<!ENTITY"; //$NON-NLS-1$ - - if (entityDepth == 1 || parsingExternalPEReference) { - // build up a string: e.g. " % STRDOM "(#PCDATA)">" - String xs = " "; //$NON-NLS-1$ - if (name.startsWith("%")) { //$NON-NLS-1$ - xs += "% "; //$NON-NLS-1$ - xs += name.substring(1); - } - else - xs += name; - - xs += " \"" + value + "\">"; //$NON-NLS-1$ //$NON-NLS-2$ - - contentString += xs; - // save expanded entity value - expandedEntityValue = value; - parseCurrentDeclaration(); - - } - } - - public void externalEntityDecl(String name, String publicId, String systemId) throws SAXException { - startDeclaration(DeclNode.EXTERNAL_ENTITY); - declString = "<!ENTITY"; //$NON-NLS-1$ - - if (entityDepth == 1 || parsingExternalPEReference) { - // build up a string: - // ex1) " % FIELD SYSTEM "oagis_fields.dtd">" - // ex2) " % FIELD PUBLIC "FOO">" - String xs = " "; //$NON-NLS-1$ - if (name.startsWith("%")) { //$NON-NLS-1$ - xs += "% "; //$NON-NLS-1$ - xs += name.substring(1); - } - else - xs += name; - - if (systemId != null) - xs += " SYSTEM \"" + systemId + "\">"; //$NON-NLS-1$ //$NON-NLS-2$ - else if (publicId != null) - xs += " PUBLIC \"" + publicId + "\">"; //$NON-NLS-1$ //$NON-NLS-2$ - - contentString += xs; - parseCurrentDeclaration(); - } - } - - // - // LexicalHandler methods - // - - public void startCDATA() throws SAXException { - } - - public void endCDATA() throws SAXException { - } - - public void startDTD(String name, String publicId, String systemId) throws SAXException { - dtdList.removeAllElements(); - dtdList.addElement(currentDTD); - } - - /** - * Report the end of DTD declarations. - * - * @exception SAXException - * The application may raise an exception. - * @see #startDTD - */ - public void endDTD() throws SAXException { - startDeclaration(DeclNode.END_DTD); - } - - /** - * Report the beginning of an entity. - * - * The start and end of the document entity are not reported. The start - * and end of the external DTD subset are reported using the pseudo-name - * "[dtd]". All other events must be properly nested within start/end - * entity events. - * - * @param name - * The name of the entity. If it is a parameter entity, the - * name will begin with '%'. - * @exception SAXException - * The application may raise an exception. - * @see #endEntity - */ - - public void startEntity(String name) throws SAXException { - if (name.equals("[dtd]")) { //$NON-NLS-1$ - startDeclaration(DeclNode.START_ENTITY_DTD); - } - else if (currentDeclNode == null) { - // PE reference in markupdecl section - if (name.startsWith("%")) { //$NON-NLS-1$ - String peName = name.substring(1); - EntityDecl en = entityPool.referPara(peName); - - peRefStack.push(name); - parsingPERefStack.push(new Boolean(parsingExternalPEReference)); - - String systemId = en.getSystemId(); - String publicId = en.getPublicId(); - if (systemId == null) { - parsingExternalPEReference = false; - } - else { - URIResolver idResolver = URIResolverPlugin.createResolver(); - String uri = idResolver.resolve(currentDTD.getName(), publicId, systemId); - if (!isDTDLoaded(uri)) { - // not loaded - // out.println(" DTD not loaded .. create new DTD: " - // ); - dtdStack.push(currentDTD); - DTD newDTD = new DTD(uri); - dtdList.addElement(newDTD); - currentDTD = newDTD; - parsingExternalPEReference = true; - } - else { - // out.println(" DTD already loaded .. " ); - parsingExternalPEReference = false; - } - } - } - } - else if (entityDepth == 1 || parsingExternalPEReference) { - String xs = (String) reader.getProperty("http://xml.org/sax/properties/xml-string"); //$NON-NLS-1$ - contentString += xs; - } - entityDepth++; - } - - /** - * Report the end of an entity. - * - * @param name - * The name of the entity that is ending. - * @exception SAXException - * The application may raise an exception. - * @see #startEntity - */ - public void endEntity(String name) throws SAXException { - if (name.equals("[dtd]")) { //$NON-NLS-1$ - startDeclaration(DeclNode.END_ENTITY_DTD); - } - else if (!peRefStack.empty()) { - parseExternalPEReference(name); - } - else if (entityDepth == 1 || parsingExternalPEReference) { - if (!contentString.endsWith(name + ";")) { //$NON-NLS-1$ - String xs = (String) reader.getProperty("http://xml.org/sax/properties/xml-string"); //$NON-NLS-1$ - contentString += xs; - } - } - entityDepth--; - entityEnd = true; - } - - protected boolean parseExternalPEReference(String name) { - if (!peRefStack.empty()) { - if (((String) peRefStack.peek()).equals(name)) { - peRefStack.pop(); - if (parsingExternalPEReference) { - currentDTD = (DTD) dtdStack.pop(); - addPEReferenceNode(name); - } - parsingExternalPEReference = ((Boolean) parsingPERefStack.pop()).booleanValue(); - return true; - } - } - return false; - } - - /** - * Report an XML comment anywhere in the document. - * - * This callback will be used for comments inside or outside the document - * element, including comments in the external DTD subset (if read). - * - * @param ch - * An array holding the characters in the comment. - * @param start - * The starting position in the array. - * @param length - * The number of characters to use from the array. - * @exception SAXException - * The application may raise an exception. - */ - public void comment(char ch[], int start, int length) throws SAXException { - startDeclaration(DeclNode.COMMENT); - - if (comment == null) - comment = new String(ch, start, length); - else - comment += "\n" + new String(ch, start, length); // append all comments. //$NON-NLS-1$ - // The comment will get reset after - // it has been attached to the following - // declaration. - } - - // - // ErrorHandler methods - // - - /* Warning. */ - public void warning(SAXParseException ex) { - String error = "[Source Line] " + declString + contentString + "\n"; //$NON-NLS-1$//$NON-NLS-2$ - error += "[Warning ] " + getLocationString(ex) + ": " + ex.getMessage(); //$NON-NLS-1$//$NON-NLS-2$ - setErrorInformation(ex, "warning"); //$NON-NLS-1$ - - parseCurrentDeclaration(); - } - - /* Error. */ - public void error(SAXParseException ex) { - String error = "[Source Line] " + declString + contentString + "\n"; //$NON-NLS-1$//$NON-NLS-2$ - error += "[Error ] " + getLocationString(ex) + ": " + ex.getMessage(); //$NON-NLS-1$//$NON-NLS-2$ - setErrorInformation(ex, "error"); //$NON-NLS-1$ - - parseCurrentDeclaration(); - } - - /* Fatal error. */ - public void fatalError(SAXParseException ex) throws SAXException { - String error = "[Source Line] " + declString + contentString + "\n"; //$NON-NLS-1$//$NON-NLS-2$ - error += "[Fatal Error] " + getLocationString(ex) + ": " + ex.getMessage(); //$NON-NLS-1$//$NON-NLS-2$ - setErrorInformation(ex, "fatal"); //$NON-NLS-1$ - - parseCurrentDeclaration(); - } - - /* Returns a string of the location. */ - private String getLocationString(SAXParseException ex) { - StringBuffer str = new StringBuffer(); - - String systemId = ex.getSystemId(); - if (systemId != null) { - int index = systemId.lastIndexOf('/'); - if (index != -1) - systemId = systemId.substring(index + 1); - str.append(systemId); - } - str.append(':'); - str.append(ex.getLineNumber()); - str.append(':'); - str.append(ex.getColumnNumber()); - - return str.toString(); - - } - - private void startDeclaration(int type) { - if (type == DeclNode.END_DTD || type == DeclNode.END_ENTITY_DTD || type == DeclNode.COMMENT || type == DeclNode.ERROR) { - previousDeclNode = currentDeclNode; - currentDeclNode = null; - } - else { - currentDeclNode = new DeclNode(type); - contentString = ""; //$NON-NLS-1$ - declString = ""; //$NON-NLS-1$ - expandedEntityValue = null; - } - } - - private void parseCurrentDeclaration() { - parseCurrentDeclarationHelper(contentString); - contentString = ""; //$NON-NLS-1$ - } - - private void parseCurrentDeclarationHelper(String declarationString) { - DTDScanner scanner; - String name; - - if (currentDeclNode == null && previousDeclNode != null && entityEnd) { - currentDeclNode = previousDeclNode; - } - - // save the previous declNode - if (currentDeclNode != null) { - BaseNode baseNode = null; - // strip out the ending markup symbol ">" - if (declarationString.endsWith(">")) //$NON-NLS-1$ - declarationString = declarationString.substring(0, declarationString.length() - 1); - - int sIndex; - String cString; - int type = currentDeclNode.getType(); - switch (type) { - case DeclNode.ELEMENT : { - name = TString.word(declarationString, 1); - - // strip out the name - sIndex = declarationString.indexOf(name) + name.length(); - cString = declarationString.substring(sIndex); - - baseNode = new ElementDecl(name, currentDTD.getName()); - scanner = new DTDScanner(currentDTD.getName(), cString); - CMNode contentModel = scanner.scanContentModel(); - if (contentModel == null && errorMessage == null) { - createErrorMessage("Expecting '(' in content model", "error"); //$NON-NLS-1$ //$NON-NLS-2$ - } - - ((ElementDecl) baseNode).setContentModelNode(contentModel); - elementPool.put(name, baseNode); - break; - } - case DeclNode.INTERNAL_ENTITY : - case DeclNode.EXTERNAL_ENTITY : { - if (!parseExternalPEReference(declarationString)) { - scanner = new DTDScanner(currentDTD.getName(), declarationString); - baseNode = scanner.scanEntityDecl(); - // System.out.println("----baseNode (" + - // declarationString + ")" + baseNode); - if (type == DeclNode.INTERNAL_ENTITY && expandedEntityValue != null) { - ((EntityDecl) baseNode).expandedValue = expandedEntityValue; - } - if (baseNode != null) { - entityPool.add((EntityDecl) baseNode); - } - } - - break; - } - case DeclNode.NOTATION : { - scanner = new DTDScanner(currentDTD.getName(), declarationString); - baseNode = scanner.scanNotationDecl(); - break; - } - case DeclNode.ATTLIST : { - name = TString.word(declarationString, 1); - - // strip out the name - sIndex = declarationString.indexOf(name) + name.length(); - cString = declarationString.substring(sIndex); - - baseNode = new Attlist(name, currentDTD.getName()); - scanner = new DTDScanner(currentDTD.getName(), cString.trim()); - Vector attrs = scanner.scanAttlistDecl(entityPool); - String errorString = scanner.getErrorString(); - - if (attrs.size() > 0) { - ((Attlist) baseNode).setAttDefs(attrs); - } - if (errorString != null) { - createErrorMessage(errorString, "error"); //$NON-NLS-1$ - } - break; - } - default : { - currentDeclNode = null; - } - } - - if (baseNode != null) { - if (comment != null) { - baseNode.setComment(comment); - comment = null; - } - - if (errorMessage != null) { - baseNode.setErrorMessage(errorMessage); - errorMessage = null; - } - - if (currentDeclNode != null) { - currentDTD.addDecl(baseNode); - } - lastBaseNode = baseNode; - } - - currentDeclNode = null; - } - else { - if (lastBaseNode != null && errorMessage != null && lastBaseNode.getErrorMessage() == null) { - lastBaseNode.setErrorMessage(errorMessage); - errorMessage = null; - } - } - } - - private void addPEReferenceNode(String name) { - if (name.startsWith("%")) { //$NON-NLS-1$ - name = name.substring(1); // strip out the % from entity name - } - EntityDecl e = new EntityDecl(name, currentDTD.getName(), null, true); - e.setEntityReferenced(true); - e.setErrorMessage(errorMessage); - errorMessage = null; - currentDTD.addDecl(e); - } - - private boolean isDTDLoaded(String uri) { - boolean loaded = false; - String list = ""; //$NON-NLS-1$ - if (dtdList != null) { - Enumeration en = dtdList.elements(); - while (en.hasMoreElements()) { - DTD dtd = (DTD) en.nextElement(); - list += dtd.getName(); - list += ","; //$NON-NLS-1$ - if (dtd.getName().equals(uri)) { - loaded = true; - break; - } - } - } - return loaded; - } - - public InputSource resolveEntity(String publicId, String systemId) throws SAXException { - InputSource result = null; - URIResolver idResolver = URIResolverPlugin.createResolver(); - String logicalURI = idResolver.resolve(currentDTD.getName(), publicId, systemId); - // bug 113537, ensure physical resolution gets done here - // right before we attempt to open a stream - String physicalURI = idResolver.resolvePhysicalLocation(currentDTD.getName(), publicId, logicalURI); - result = new InputSource(logicalURI); - if(!(physicalURI == null || physicalURI.equals("") || URIHelper.hasProtocol(physicalURI))) //$NON-NLS-1$ - { - physicalURI = "file:///" + physicalURI; //$NON-NLS-1$ - } - result.setByteStream(new LazyURLInputStream(physicalURI)); - return result; - } - - // - // Main - // - - /** Main program entry point. */ - public static void main(String argv[]) { - - // is there anything to do? - if (argv.length == 0) { - printUsage(); - System.exit(1); - } - - // vars - boolean canonical = false; - boolean expandEntityReferences = false; - DTDParser parser; - - // check parameters - for (int i = 0; i < argv.length; i++) { - String arg = argv[i]; - - // options - if (arg.startsWith("-")) { //$NON-NLS-1$ - - if (arg.equals("-c")) { //$NON-NLS-1$ - canonical = true; - continue; - } - - if (arg.equals("-x")) { //$NON-NLS-1$ - expandEntityReferences = true; - continue; - } - - if (arg.equals("-h")) { //$NON-NLS-1$ - printUsage(); - System.exit(1); - } - } - try { - parser = new DTDParser(canonical); - parser.setExpandEntityReferences(expandEntityReferences); - parser.parse(arg); - } - catch (Exception e) { - e.printStackTrace(); - } - } - - } // main(String[]) - - /** Prints the usage. */ - private static void printUsage() { - - System.err.println("usage: java sax.DTDParser (options) uri ..."); //$NON-NLS-1$ - System.err.println(); - System.err.println("options:"); //$NON-NLS-1$ - System.err.println(" -c Canonical XML output."); //$NON-NLS-1$ - System.err.println(" -x Expand entity references."); //$NON-NLS-1$ - System.err.println(" -h This help screen."); //$NON-NLS-1$ - - } // printUsage() - - private void setErrorInformation(SAXParseException ex, String severity) { - errorMessage = new ErrorMessage(); - - if (ex.getLineNumber() == -1) { - errorMessage.setErrorLine(lineNumber); - } - else { - errorMessage.setErrorLine(ex.getLineNumber()); - } - - - errorMessage.setErrorMessage(ex.getMessage()); - errorMessage.setErrorColumn(ex.getColumnNumber()); - errorMessage.setSeverity(severity); - errorMessages.add(errorMessage); - } - - private void createErrorMessage(String message, String severity) { - errorMessage = new ErrorMessage(); - - Locator locator = getLocator(); - - errorMessage.setErrorLine(locator.getLineNumber()); - errorMessage.setErrorColumn(locator.getColumnNumber()); - - errorMessage.setErrorMessage(message); - errorMessage.setSeverity(severity); - - errorMessages.add(errorMessage); - } - -} |